| author | Claus Gittinger <cg@exept.de> |
| Thu, 24 Apr 1997 18:05:36 +0200 | |
| changeset 1660 | 67a3a6eab23a |
| parent 1653 | 7ab13998d4cd |
| child 1662 | 93de4bcdca85 |
| permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1991 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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Object subclass:#Image |
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instanceVariableNames:'bytes width height bitsPerPixel depth colorMap maxPixelValue |
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rowByteSize bitsPerSample samplesPerPixel photometric device |
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deviceForm monoDeviceForm fullColorDeviceForm mask |
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maskedPixelsAre0' |
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classVariableNames:'Lobby DitherAlgorithm NumberOfDitherColors |
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CollectGarbageWhenRunningOutOfColors FileFormats |
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ImageNotFoundQuerySignal BadImageFormatQuerySignal |
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ImageSaveErrorSignal FileCreationErrorSignal |
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CannotRepresentImageSignal InformationLostQuerySignal' |
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poolDictionaries:'' |
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category:'Graphics-Images' |
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! |
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!Image class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1991 by Claus Gittinger |
|
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All Rights Reserved |
| 46 | 33 |
|
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This software is furnished under a license and may be used |
|
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only in accordance with the terms of that license and with the |
|
36 |
inclusion of the above copyright notice. This software may not |
|
37 |
be provided or otherwise made available to, or used by, any |
|
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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||
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documentation |
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" |
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this class provides (some time in the future) representation |
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for all kinds of images (monochrome, greyscale and color) |
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and will finally replace Form. |
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For now (only ;-) depths of 1, 2, 4, 8, 16 and 24 are supported. |
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An Image keeps all of its information in a device independent way, |
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but may be associated to a device. |
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The data held keeps all information which was originally present, |
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even if the display-device has lower resolution. |
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Therefore, it is possible to process and manipulate images without loosing |
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color information. |
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Images may be created manually (by providing a pixel array), |
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by screen capture or by reading a file (using an ImageReader). |
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This gives a device independent image. |
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For display, a device representation is required, which can be |
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aquired by sending the |
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'onDevice:aDevice' |
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message to the image. This will create a (possibly dithered) device-form, |
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representing the image using the currently available colors. |
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In rare cases, an explicit monochrome representation of the image is needed |
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(X servers take monochrome icons only), this can be created by sending |
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it the message |
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'monochromeOn:aDevice'. |
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Also, it is planned to generate another hi-color resolution version, |
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which uses its own colormap and allows the use of all 256 colors on an 8bit display |
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(this is not currently implemented). |
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An images pixel interpretation is controlled by the photometric instance variable |
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and (if that is #palette) a colorMap. |
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This is in contrast to the ST-80 way, where all of this info is in the colorMap |
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(and using specialized colorMaps for b&w / greyScale images). |
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This may change in future versions for more application compatibility. |
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To convert pictures from/to external file-formats, image readers are used |
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which have the file-format knowledge built in. |
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There are readers for most common formats available |
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(see ImageReader and especially subclasses such as TIFFReader, GIFReader etc.). |
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File formats are handled by subclasses of ImageReader, which understand |
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a specific format. You can add more readers, by adding an association |
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such as ('.jpg' -> JPEGReader) to the class variable 'FileFormats'
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(see the classes #initialize method, which sets up some default, and the |
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patches/display.rc files, which add more). |
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Some algorithms used here (especially dithering & color allocation) are |
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experimental and far from being perfect (some are very slow). |
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For now, the most common cases have been optimized and perform reasonably |
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fast - however, with uncommon depth/visualType combinations, you may |
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run into slower fallback methods ... |
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Much more work is needed if you plan to do heavy image processing and will |
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(may) be done in the future if there is a demand for it ... |
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Dithering can be controlled by the DitherAlgorithm classVariable: |
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DitherAlgorithm: |
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nil a simple threshold algorithm |
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(i.e. for mono, p<0.5 -> black, p>=0.5 -> white) |
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#pattern patterned dither |
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(for p, take dithered color to fill pixel; |
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uses dithering in color-class) |
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#error error diffusion dither (Floyd-Steinberg) |
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planned - not yet implemented. |
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[instance variables:] |
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width <Integer> the width in pixels |
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height <Integer> the height in pixels |
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bytes <ByteArray> the full image information |
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photometric <Symbol> #rgb, #palette, #blackIs0 or #whiteIs0 |
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samplesPerPixel <Integer> the number of planes |
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bitsPerSample <Array> the number of bits per plane |
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colorMap <Array> only if photometric is #palette; |
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maps pixel values to r/g/b values. |
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device <Workstation> the device on which deviceForm, |
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monoDeviceForm and lowResDeviceForm are |
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deviceForm <Form> the device form which gives the best |
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possible aproximation of the image on |
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device using standard colors. |
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monoDeviceForm <Form> the device form which gives a monochrome |
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aproximation of the image on device. |
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fullColorDeviceForm <Form> the device form which gives the best |
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device using private colors. |
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(not yet implemented) |
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mask <ImageMask> an optional mask; |
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if non-nil, only pixels for which the |
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corresponding mask bit is non-zero |
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are drawn. |
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maskedPixelsAre0 <Boolean> a hint for image processors and drawers |
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if true, masked pixels are known to be |
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zero in the pixel bytes. |
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bitsPerPixel not used in ST/X |
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depth - these have been added in instVar-slots |
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maxPixelValue - according to the ST-80's image class. |
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rowByteSize - to allow loading of st-80 images |
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- (which are stored as instVarAt:put: expressions) |
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[class variables:] |
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Lobby <Registry> keeps track of known images |
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(for resource freeing with garbage collector) |
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DitherAlgorithm <Symbol> defines how to dither |
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NumberOfDitherColors <Integer> defines, how many dither colors to use |
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FileFormats <Dictionary> associates filename extensions to |
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image reader classes (now set-up in startup-file) |
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CollectGarbageWhenRunningOutOfColors |
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<Boolean> if true, and we run out of available |
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device colors during creation of a |
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device image, collect garbage for |
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possible image reclamation. |
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If false, proceed immediately. |
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Default is true. |
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ImageNotFoundQuerySignal |
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<QuerySignal> raised, if an image could not be loaded |
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from a file. The parameter is the images |
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fileName. |
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A handler may return a replacement |
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image or proceed with nil. |
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If unhandled, a nil is returned from the |
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image creation. |
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BadImageFormatQuerySignal |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
188 |
<QuerySignal> raised, if an image could not be loaded |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
189 |
from a file due to a file error or |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
190 |
unsupported format. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
191 |
A handler may return a replacement |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
192 |
image or proceed with nil. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
193 |
If unhandled, a nil is returned from the |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
194 |
image creation. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
195 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
196 |
ImageSaveErrorSignal |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
197 |
<Signal> parent of errors below. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
198 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
199 |
FileCreationErrorSignal |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
200 |
<Signal> file could not be created when saving an |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
201 |
image. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
202 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
203 |
CannotRepresentImageSignal |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
204 |
<Signal> the specified ImageReader cannot represent |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
205 |
the given image. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
206 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
207 |
InformationLostQuerySignal |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
208 |
<Signal> the specified ImageReader can represent |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
209 |
the given image, but some information |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
210 |
(typically color resolution) is lost. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
211 |
If unhandled, the save proceeds as usual. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
212 |
|
|
1156
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
213 |
|
| 46 | 214 |
todo: |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
215 |
support alpha masks |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
216 |
cleanup the dithering & conversion code |
| 592 | 217 |
|
218 |
[See also:] |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
219 |
Form Icon ImageReader |
| 611 | 220 |
|
221 |
[author:] |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
222 |
Claus Gittinger |
| 0 | 223 |
" |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
224 |
|
| 649 | 225 |
! |
226 |
||
227 |
examples |
|
228 |
" |
|
229 |
reading from a file (many formats are supported): |
|
| 1642 | 230 |
[exBegin] |
231 |
(Image fromFile:'bitmaps/claus.gif') inspect |
|
232 |
[exEnd] |
|
233 |
[exBegin] |
|
234 |
(Image fromFile:'bitmaps/SmalltalkX.xbm') inspect |
|
235 |
[exEnd] |
|
236 |
[exBegin] |
|
237 |
(Image fromFile:'bitmaps/okSmily_up.bmp') inspect |
|
238 |
[exEnd] |
|
| 649 | 239 |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
240 |
inline image: |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
241 |
default: depth=1 & #blackIs0 |
| 1642 | 242 |
[exBegin] |
243 |
(Image width:8 height:8 |
|
244 |
fromArray:#( 2r11111111 |
|
245 |
2r10000001 |
|
246 |
2r10000001 |
|
247 |
2r10000001 |
|
248 |
2r10000001 |
|
249 |
2r10000001 |
|
250 |
2r10000001 |
|
251 |
2r11111111 )) inspect |
|
252 |
[exEnd] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
253 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
254 |
with #whiteIs0 photometric |
| 1642 | 255 |
[exBegin] |
256 |
((Image width:8 height:8 |
|
257 |
fromArray:#( 2r11111111 |
|
258 |
2r10000001 |
|
259 |
2r10000001 |
|
260 |
2r10000001 |
|
261 |
2r10000001 |
|
262 |
2r10000001 |
|
263 |
2r10000001 |
|
264 |
2r11111111 )) |
|
265 |
photometric:#whiteIs0) |
|
266 |
inspect |
|
267 |
[exEnd] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
268 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
269 |
with a colorMap |
| 1642 | 270 |
[exBegin] |
271 |
((Image width:8 height:8 |
|
272 |
fromArray:#( 2r11111111 |
|
273 |
2r10000001 |
|
274 |
2r10000001 |
|
275 |
2r10000001 |
|
276 |
2r10000001 |
|
277 |
2r10000001 |
|
278 |
2r10000001 |
|
279 |
2r11111111 )) |
|
280 |
colorMap:(Array with:(Color red) |
|
281 |
with:(Color yellow))) |
|
282 |
inspect |
|
283 |
[exEnd] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
284 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
285 |
a depth4 greyScale image: |
| 1642 | 286 |
[exBegin] |
287 |
((Depth4Image |
|
288 |
width:4 |
|
289 |
height:4 |
|
290 |
fromArray:#[ |
|
291 |
16r01 16r23 |
|
292 |
16r45 16r67 |
|
293 |
16r89 16rab |
|
294 |
16rcd 16ref |
|
295 |
]) |
|
296 |
magnifiedBy:30) |
|
297 |
inspect |
|
298 |
[exEnd] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
299 |
the following has the same effect: |
| 1642 | 300 |
[exBegin] |
301 |
((Image |
|
302 |
width:4 |
|
303 |
height:4 |
|
304 |
depth:4 |
|
305 |
fromArray:#[ |
|
306 |
16r01 16r23 |
|
307 |
16r45 16r67 |
|
308 |
16r89 16rab |
|
309 |
16rcd 16ref |
|
310 |
]) |
|
311 |
magnifiedBy:30) |
|
312 |
inspect |
|
313 |
[exEnd] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
314 |
with reverse grey-interpretation: |
| 1642 | 315 |
[exBegin] |
316 |
((Depth4Image |
|
317 |
width:4 |
|
318 |
height:4 |
|
319 |
fromArray:#[ |
|
320 |
16r01 16r23 |
|
321 |
16r45 16r67 |
|
322 |
16r89 16rab |
|
323 |
16rcd 16ref |
|
324 |
]) |
|
325 |
photometric:#whiteIs0; |
|
326 |
magnifiedBy:30) |
|
327 |
inspect |
|
328 |
[exEnd] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
329 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
330 |
with 1-bit-per-pixel rgb interpretation: |
| 1642 | 331 |
[exBegin] |
332 |
((Depth4Image |
|
333 |
width:4 |
|
334 |
height:4 |
|
335 |
fromArray:#[ |
|
336 |
16r01 16r23 |
|
337 |
16r45 16r67 |
|
338 |
16r89 16rab |
|
339 |
16rcd 16ref |
|
340 |
]) |
|
341 |
photometric:#rgb; |
|
342 |
samplesPerPixel:3; |
|
343 |
bitsPerSample:#(1 1 1); |
|
344 |
magnifiedBy:30) |
|
345 |
inspect |
|
346 |
[exEnd] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
347 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
348 |
with 1/2/1 rgb interpretation: |
| 1642 | 349 |
[exBegin] |
350 |
((Depth4Image |
|
351 |
width:4 |
|
352 |
height:4 |
|
353 |
fromArray:#[ |
|
354 |
16r01 16r23 |
|
355 |
16r45 16r67 |
|
356 |
16r89 16rab |
|
357 |
16rcd 16ref |
|
358 |
]) |
|
359 |
photometric:#rgb; |
|
360 |
samplesPerPixel:3; |
|
361 |
bitsPerSample:#(1 2 1); |
|
362 |
magnifiedBy:30) |
|
363 |
inspect |
|
364 |
[exEnd] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
365 |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
366 |
a 2/2/0 rgb image (i.e. no blue): |
| 1642 | 367 |
[exBegin] |
368 |
|i| |
|
369 |
||
370 |
i := Depth4Image |
|
371 |
width:4 |
|
372 |
height:4 |
|
373 |
fromArray:#[ 16r01 16r23 |
|
374 |
16r45 16r67 |
|
375 |
16r89 16rab |
|
376 |
16rcd 16ref ]. |
|
377 |
i photometric:#rgb. |
|
378 |
i samplesPerPixel:3. |
|
379 |
i bitsPerSample:#(2 2 0). |
|
380 |
||
381 |
i := i magnifiedBy:30. |
|
382 |
i inspect. |
|
383 |
[exEnd] |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
384 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
385 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
386 |
a 0/0/4 rgb image (i.e. no red or green): |
| 1642 | 387 |
[exBegin] |
388 |
|i| |
|
389 |
||
390 |
i := Depth4Image |
|
391 |
width:4 |
|
392 |
height:4 |
|
393 |
fromArray:#[ 16r01 16r23 |
|
394 |
16r45 16r67 |
|
395 |
16r89 16rab |
|
396 |
16rcd 16ref ]. |
|
397 |
i photometric:#rgb. |
|
398 |
i samplesPerPixel:3. |
|
399 |
i bitsPerSample:#(0 0 4). |
|
400 |
||
401 |
i := i magnifiedBy:30. |
|
402 |
i inspect. |
|
403 |
[exEnd] |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
404 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
405 |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
406 |
a 2plane greyscale image: |
| 1642 | 407 |
[exBegin] |
408 |
((Depth2Image |
|
409 |
width:4 |
|
410 |
height:4 |
|
411 |
fromArray:#[ |
|
412 |
4r0123 |
|
413 |
4r1230 |
|
414 |
4r2301 |
|
415 |
4r3012 |
|
416 |
]) |
|
417 |
magnifiedBy:30) |
|
418 |
inspect |
|
419 |
[exEnd] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
420 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
421 |
with colors: |
| 1642 | 422 |
[exBegin] |
423 |
((Depth2Image |
|
424 |
width:4 |
|
425 |
height:4 |
|
426 |
fromArray:#[ |
|
427 |
4r0123 |
|
428 |
4r1230 |
|
429 |
4r2301 |
|
430 |
4r3012 |
|
431 |
]) |
|
432 |
colorMap:(Array with:(Color black) |
|
433 |
with:(Color red) |
|
434 |
with:(Color green) |
|
435 |
with:(Color blue)); |
|
436 |
magnifiedBy:30) |
|
437 |
inspect |
|
438 |
[exEnd] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
439 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
440 |
depth8 image with 3/3/2 rgb interpretation: |
| 1642 | 441 |
[exBegin] |
442 |
((Depth8Image |
|
443 |
width:16 |
|
444 |
height:16 |
|
445 |
fromArray:(ByteArray withAll:(0 to:16rFF))) |
|
446 |
photometric:#rgb; |
|
447 |
samplesPerPixel:3; |
|
448 |
bitsPerSample:#(3 3 2); |
|
449 |
magnifiedBy:30) |
|
450 |
inspect |
|
451 |
[exEnd] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
452 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
453 |
depth8 image with 2/2/2 rgb interpretation: |
| 1642 | 454 |
[exBegin] |
455 |
((Depth8Image |
|
456 |
width:8 |
|
457 |
height:8 |
|
458 |
fromArray:(ByteArray withAll:(0 to:16r3F))) |
|
459 |
photometric:#rgb; |
|
460 |
samplesPerPixel:3; |
|
461 |
bitsPerSample:#(2 2 2); |
|
462 |
magnifiedBy:30) |
|
463 |
inspect |
|
464 |
[exEnd] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
465 |
|
| 649 | 466 |
storing (only a few formats are currently supported): |
| 1642 | 467 |
[exBegin] |
468 |
|img| |
|
469 |
||
470 |
img := Image fromFile:'bitmaps/okSmily_up.bmp'. |
|
471 |
img saveOn:'myImage.tiff'. |
|
472 |
(Image fromFile:'myImage.tiff') inspect |
|
473 |
[exEnd] |
|
| 649 | 474 |
magnifying (any factor): |
| 1642 | 475 |
[exBegin] |
476 |
((Image fromFile:'bitmaps/claus.gif') |
|
477 |
magnifiedTo:(48@48)) |
|
478 |
inspect |
|
479 |
[exEnd] |
|
480 |
[exBegin] |
|
481 |
((Image fromFile:'bitmaps/claus.gif') |
|
482 |
magnifiedBy:0.7) |
|
483 |
inspect |
|
484 |
[exEnd] |
|
| 649 | 485 |
rotating (currently, only multiples of 90 degrees are supported): |
| 1642 | 486 |
[exBegin] |
487 |
((Image fromFile:'bitmaps/claus.gif') |
|
488 |
rotated:90) |
|
489 |
inspect |
|
490 |
[exEnd] |
|
491 |
[exBegin] |
|
492 |
(((Image fromFile:'bitmaps/claus.gif') |
|
493 |
magnifiedBy:0.3@0.7) rotated:270) |
|
494 |
inspect |
|
495 |
[exEnd] |
|
| 649 | 496 |
" |
| 0 | 497 |
! ! |
498 |
||
|
1086
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
499 |
!Image class methodsFor:'initialization'! |
| 283 | 500 |
|
| 1307 | 501 |
addReader:aReaderClass suffix:aSuffix |
502 |
"register an additional image reader. |
|
503 |
This is provided for subclasses, to regster themself when |
|
504 |
loaded (or from the startup scripts)" |
|
505 |
||
| 1309 | 506 |
FileFormats isNil ifTrue:[ |
507 |
self initializeFileFormatTable |
|
508 |
]. |
|
| 1307 | 509 |
FileFormats at:(aSuffix asLowercase) put:aReaderClass. |
510 |
||
511 |
" |
|
512 |
Image addReader:GIFReader suffix:'gif' |
|
513 |
" |
|
514 |
||
515 |
"Modified: 1.2.1997 / 14:42:54 / cg" |
|
516 |
! |
|
517 |
||
| 283 | 518 |
fileFormats |
519 |
"return the collection of supported file formats. |
|
520 |
The returned dictionary maps file-extensions to image reader classes." |
|
521 |
||
522 |
FileFormats isNil ifTrue:[ |
|
523 |
self initializeFileFormatTable |
|
524 |
]. |
|
525 |
^ FileFormats |
|
526 |
||
527 |
" |
|
528 |
Image fileFormats |
|
529 |
" |
|
| 100 | 530 |
! |
531 |
||
| 283 | 532 |
flushDeviceImages |
| 869 | 533 |
"simply release all deviceForms" |
| 283 | 534 |
|
535 |
Lobby do:[:anImage | |
|
| 1642 | 536 |
anImage restored |
| 283 | 537 |
] |
| 869 | 538 |
|
539 |
"Modified: 15.6.1996 / 15:45:02 / cg" |
|
| 0 | 540 |
! |
541 |
||
542 |
initialize |
|
| 2 | 543 |
"initialize class constants" |
544 |
||
| 0 | 545 |
"setup tracker of known pictures" |
| 24 | 546 |
Lobby isNil ifTrue:[ |
| 1642 | 547 |
Lobby := Registry new. |
548 |
ObjectMemory addDependent:self. |
|
549 |
||
550 |
"/ define the algorithm to use for dithering - |
|
551 |
"/ supported values are: |
|
552 |
"/ #threshold |
|
553 |
"/ #ordered |
|
554 |
"/ #floydSteinberg |
|
555 |
"/ #burkes |
|
556 |
||
557 |
DitherAlgorithm := #floydSteinberg. |
|
558 |
||
559 |
(Display notNil and:[Display hasGrayscales]) ifFalse:[ |
|
560 |
NumberOfDitherColors := 64 |
|
561 |
] ifTrue:[ |
|
562 |
"as far as I remember, this is about the number of grey values, the eye can distinguish" |
|
563 |
NumberOfDitherColors := 100 |
|
564 |
]. |
|
565 |
||
566 |
"define reader classes" |
|
567 |
FileFormats isNil ifTrue:[ |
|
568 |
self initializeFileFormatTable |
|
569 |
]. |
|
570 |
||
571 |
CollectGarbageWhenRunningOutOfColors := false. |
|
572 |
||
573 |
ImageNotFoundQuerySignal := QuerySignal new. |
|
574 |
ImageNotFoundQuerySignal nameClass:self message:#imageNotFoundQuerySignal. |
|
575 |
||
576 |
ImageSaveErrorSignal := ErrorSignal newSignalMayProceed:true. |
|
577 |
ImageSaveErrorSignal nameClass:self message:#imageSaveErrorSignal. |
|
578 |
||
579 |
FileCreationErrorSignal := ImageSaveErrorSignal newSignalMayProceed:true. |
|
580 |
FileCreationErrorSignal nameClass:self message:#fileCreationErrorSignal. |
|
581 |
||
582 |
CannotRepresentImageSignal := ImageSaveErrorSignal newSignalMayProceed:true. |
|
583 |
CannotRepresentImageSignal nameClass:self message:#cannotRepresentImageSignal. |
|
584 |
||
585 |
InformationLostQuerySignal := QuerySignal new. |
|
586 |
InformationLostQuerySignal nameClass:self message:#informationLostQuerySignal. |
|
587 |
||
588 |
BadImageFormatQuerySignal := QuerySignal new. |
|
589 |
BadImageFormatQuerySignal nameClass:self message:#badImageFormatQuerySignal. |
|
| 386 | 590 |
] |
| 748 | 591 |
|
|
1385
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
592 |
"Modified: 27.2.1997 / 12:42:13 / cg" |
| 12 | 593 |
! |
594 |
||
| 24 | 595 |
initializeFileFormatTable |
| 46 | 596 |
"initialize a default table to map from file extension to reader class. |
597 |
The mapping here is a default needed for proper operation of ST/X; |
|
| 1593 | 598 |
see the 'smalltalk.rc'/'display.rc' startup files for a real (full) map." |
| 24 | 599 |
|
600 |
FileFormats := Dictionary new. |
|
| 1307 | 601 |
|
602 |
FileFormats at:'xbm' put:XBMReader. |
|
603 |
FileFormats at:'tiff' put:TIFFReader. |
|
604 |
FileFormats at:'gif' put:GIFReader. |
|
605 |
"/ FileFormats at:'img' put:IMGReader. |
|
606 |
"/ FileFormats at:'icon' put:SunRasterReader. |
|
| 24 | 607 |
|
| 72 | 608 |
" |
609 |
Image initializeFileFormatTable |
|
610 |
" |
|
| 1307 | 611 |
|
| 1593 | 612 |
"Modified: 14.4.1997 / 17:16:02 / cg" |
| 24 | 613 |
! |
614 |
||
| 901 | 615 |
update:something with:aParameter from:changedObject |
| 0 | 616 |
"flush all device specific stuff when restarted from a snapshot" |
617 |
||
618 |
(something == #restarted) ifTrue:[ |
|
| 1642 | 619 |
self flushDeviceImages |
| 0 | 620 |
] |
| 901 | 621 |
|
622 |
"Created: 21.6.1996 / 19:47:43 / cg" |
|
| 0 | 623 |
! ! |
624 |
||
|
1086
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
625 |
!Image class methodsFor:'instance creation'! |
| 283 | 626 |
|
627 |
extent:ext depth:d bits:bits |
|
628 |
"ST-80 compatibility; assume 32-bit padding" |
|
629 |
||
630 |
^ self extent:ext depth:d bits:bits pad:32 |
|
| 24 | 631 |
! |
632 |
||
| 283 | 633 |
extent:ext depth:d bits:bits pad:padding |
634 |
"ST-80 compatibility" |
|
635 |
||
636 |
^ self width:ext x height:ext y depth:d fromArray:bits pad:padding |
|
| 24 | 637 |
! |
638 |
||
| 1276 | 639 |
extent:ext depth:d bitsPerPixel:bpp palette:aColormap usingBits:bits |
640 |
"ST-80 compatibility" |
|
641 |
||
642 |
|img| |
|
643 |
||
644 |
img := self width:ext x height:ext y depth:bpp fromArray:bits pad:32. |
|
645 |
img colorMap:aColormap. |
|
646 |
^ img |
|
647 |
||
648 |
"Created: 25.1.1997 / 03:50:22 / cg" |
|
649 |
"Modified: 25.1.1997 / 12:27:35 / cg" |
|
650 |
! |
|
651 |
||
| 1433 | 652 |
extent:ext depth:d palette:aColormap |
653 |
"create & return a blank image of the given size. |
|
654 |
ST-80 compatibility" |
|
655 |
||
656 |
|newImage emptyBits| |
|
657 |
||
658 |
newImage := (self implementorForDepth:d) new. |
|
659 |
newImage width:ext x height:ext y depth:d palette:aColormap. |
|
660 |
emptyBits := ByteArray new:(newImage bytesPerRow * ext y). |
|
661 |
newImage bits:emptyBits. |
|
662 |
^ newImage |
|
663 |
||
664 |
" |
|
665 |
Image extent:16@16 depth:8 palette:nil |
|
666 |
Image extent:16@16 depth:4 palette:nil |
|
667 |
Image extent:16@16 depth:2 palette:nil |
|
668 |
" |
|
669 |
||
670 |
"Created: 6.3.1997 / 15:24:01 / cg" |
|
671 |
! |
|
672 |
||
| 1070 | 673 |
extent:ext depth:d palette:aColormap bits:bits |
674 |
"ST-80 compatibility" |
|
675 |
||
676 |
^ self extent:ext depth:d palette:aColormap bits:bits pad:16 |
|
677 |
||
678 |
"Modified: 7.10.1996 / 11:32:16 / cg" |
|
679 |
! |
|
680 |
||
| 283 | 681 |
extent:ext depth:d palette:aColormap bits:bits pad:padding |
682 |
"ST-80 compatibility" |
|
683 |
||
| 1070 | 684 |
|img| |
685 |
||
686 |
img := self width:ext x height:ext y depth:d fromArray:bits pad:padding. |
|
687 |
img colorMap:aColormap. |
|
688 |
^ img |
|
689 |
||
690 |
"Modified: 7.10.1996 / 11:32:00 / cg" |
|
| 283 | 691 |
! |
692 |
||
693 |
extent:ext fromArray:bits offset:offset |
|
694 |
"ST-80 compatibility" |
|
695 |
||
696 |
^ self width:ext x height:ext y fromArray:bits |
|
| 89 | 697 |
! |
698 |
||
699 |
fromForm:aForm |
|
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
700 |
"create & return an Image given a aForm" |
| 89 | 701 |
|
| 936 | 702 |
|depth device vis img| |
703 |
||
704 |
depth := aForm depth. |
|
705 |
device := aForm device. |
|
706 |
||
707 |
(device notNil and:[depth == device depth]) ifTrue:[ |
|
| 1642 | 708 |
"/ |
709 |
"/ for truecolor displays, return a Depth24Image |
|
710 |
"/ (must do this for depth15 & depth16 displays, since |
|
711 |
"/ Depth16Image has no way to specify r/g/b masks ...) |
|
712 |
"/ |
|
713 |
vis := device visualType. |
|
714 |
(vis == #TrueColor or:[vis == #DirectColor]) ifTrue:[ |
|
715 |
depth > 8 ifTrue:[ |
|
716 |
depth := 24. |
|
717 |
] |
|
718 |
]. |
|
| 936 | 719 |
]. |
720 |
img := (self implementorForDepth:depth) new. |
|
721 |
device isNil ifTrue:[ |
|
| 1642 | 722 |
^ img fromForm:aForm. |
| 936 | 723 |
]. |
724 |
^ img from:aForm in:(0@0 extent:(aForm extent)) |
|
| 89 | 725 |
|
726 |
" |
|
727 |
|f| |
|
728 |
||
729 |
f := Form width:16 height:16. |
|
730 |
f clear. |
|
731 |
f displayLineFromX:0 y:0 toX:15 y:15. |
|
732 |
f inspect. |
|
733 |
(Image fromForm:f) inspect |
|
734 |
" |
|
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
735 |
|
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
736 |
" |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
737 |
|f| |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
738 |
|
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
739 |
f := Form width:16 height:16 depth:(Display depth) on:Display. |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
740 |
f clear. |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
741 |
f paint:(Color red). |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
742 |
f displayLineFromX:0 y:0 toX:15 y:15. |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
743 |
f paint:(Color green). |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
744 |
f displayLineFromX:15 y:0 toX:0 y:15. |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
745 |
f inspect. |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
746 |
(Image fromForm:f) inspect |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
747 |
" |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
748 |
|
| 936 | 749 |
"Modified: 11.7.1996 / 11:21:42 / cg" |
| 89 | 750 |
! |
751 |
||
752 |
fromImage:anImage |
|
753 |
"create & return an Image given another image. This can be used to |
|
754 |
convert an image to another depth." |
|
755 |
||
756 |
(self == Image or:[anImage class == self]) ifTrue:[^ anImage]. |
|
757 |
^ self new fromImage:anImage. |
|
758 |
||
759 |
" |
|
760 |
|i1 i8| |
|
761 |
||
762 |
i1 := Image fromFile:'bitmaps/SBrowser.xbm'. |
|
763 |
i8 := Depth8Image fromImage:i1. |
|
764 |
i8 inspect |
|
765 |
" |
|
766 |
! |
|
767 |
||
| 191 | 768 |
fromSubImage:anImage in:aRectangle |
769 |
"create & return an Image from a rectangular area in another image. |
|
770 |
This can also be used to get a subimage in another depth." |
|
771 |
||
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
772 |
|newImage| |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
773 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
774 |
self == Image ifTrue:[ |
| 1642 | 775 |
newImage := self implementorForDepth:anImage depth. |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
776 |
] ifFalse:[ |
| 1642 | 777 |
newImage := self new. |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
778 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
779 |
^ newImage fromSubImage:anImage in:aRectangle. |
| 191 | 780 |
|
781 |
" |
|
782 |
|i1 i8| |
|
783 |
||
784 |
i1 := Image fromFile:'bitmaps/garfield.gif'. |
|
785 |
i8 := Depth8Image fromSubImage:i1 in:(0@0 corner:20@20). |
|
786 |
i8 inspect |
|
787 |
" |
|
| 650 | 788 |
" |
789 |
|i1 i8| |
|
790 |
||
791 |
i1 := Image fromFile:'bitmaps/claus.gif'. |
|
792 |
i8 := Depth8Image fromSubImage:i1 in:(70@50 extent:50@50). |
|
793 |
i8 inspect |
|
794 |
" |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
795 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
796 |
|i1 i8| |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
797 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
798 |
i1 := Image fromFile:'bitmaps/claus.gif'. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
799 |
i8 := Image fromSubImage:i1 in:(70@50 extent:50@50). |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
800 |
i8 inspect |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
801 |
" |
| 191 | 802 |
|
803 |
"Created: 20.9.1995 / 01:05:43 / claus" |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
804 |
"Modified: 10.6.1996 / 18:11:08 / cg" |
| 191 | 805 |
! |
806 |
||
| 283 | 807 |
new |
808 |
"create a new image. Redefined to set the photometric to |
|
809 |
greyScale with black being 0 as default." |
|
810 |
||
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
811 |
^ super new photometric:(self defaultPhotometric) |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
812 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
813 |
"Modified: 10.6.1996 / 18:08:37 / cg" |
| 283 | 814 |
! |
815 |
||
| 89 | 816 |
width:w height:h |
817 |
"create a new image, given width, height. Assume a depth of 1." |
|
818 |
||
819 |
|cls| |
|
820 |
||
821 |
cls := self. |
|
822 |
cls == Image ifTrue:[ |
|
823 |
cls := self implementorForDepth:1 |
|
824 |
]. |
|
825 |
^ cls new width:w height:h depth:1 |
|
826 |
! |
|
827 |
||
| 82 | 828 |
width:w height:h depth:d |
| 89 | 829 |
"create a new image, given width, height and depth" |
830 |
||
| 191 | 831 |
^ (self implementorForDepth:d) new |
832 |
width:w height:h depth:d |
|
| 82 | 833 |
! |
834 |
||
835 |
width:w height:h depth:d fromArray:pixelData |
|
| 89 | 836 |
"create a new image, given width, height, depth and data. |
837 |
Data must be a ByteArray containing correctly aligned bits for the specified |
|
| 134 | 838 |
depth (8-bit padded)." |
| 82 | 839 |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
840 |
^ (self implementorForDepth:d) new |
| 1642 | 841 |
width:w height:h depth:d fromArray:pixelData |
| 82 | 842 |
|
843 |
" |
|
844 |
Image width:8 |
|
| 1642 | 845 |
height:8 |
846 |
depth:1 |
|
847 |
fromArray:#[2r11001100 |
|
848 |
2r00110011 |
|
849 |
2r11001100 |
|
850 |
2r00110011 |
|
851 |
2r11001100 |
|
852 |
2r00110011 |
|
853 |
2r11001100 |
|
854 |
2r00110011]. |
|
| 82 | 855 |
" |
856 |
||
857 |
" |
|
858 |
Image width:8 |
|
| 1642 | 859 |
height:8 |
860 |
depth:2 |
|
861 |
fromArray:#[4r1100 4r1100 |
|
862 |
4r0011 4r0011 |
|
863 |
4r1100 4r1100 |
|
864 |
4r0011 4r0011 |
|
865 |
4r1100 4r1100 |
|
866 |
4r0011 4r0011 |
|
867 |
4r1100 4r1100 |
|
868 |
4r0011 4r0011]. |
|
| 89 | 869 |
" |
870 |
||
871 |
" |
|
872 |
Image width:8 |
|
| 1642 | 873 |
height:8 |
874 |
depth:4 |
|
875 |
fromArray:#[16r00 16r01 16rf0 16rf1 |
|
876 |
16r02 16r03 16rf2 16rf3 |
|
877 |
16r04 16r05 16rf4 16rf5 |
|
878 |
16r06 16r07 16rf6 16rf7 |
|
879 |
16r08 16r09 16rf8 16rf9 |
|
880 |
16r0a 16r0b 16rfa 16rfb |
|
881 |
16r0c 16r0d 16rfc 16rfd |
|
882 |
16r0e 16r0f 16rfe 16rff]. |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
883 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
884 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
885 |
"Modified: 10.6.1996 / 18:18:10 / cg" |
| 132 | 886 |
! |
887 |
||
| 134 | 888 |
width:w height:h depth:d fromArray:pixelData pad:padding |
889 |
"create a new image, given width, height, depth and data. |
|
890 |
Data must be a ByteArray containing correctly aligned bits for the specified |
|
891 |
depth." |
|
892 |
||
893 |
|img newBits srcRowBytes dstRowBytes srcIndex dstIndex| |
|
894 |
||
895 |
img := (self implementorForDepth:d) new width:w height:h depth:d . |
|
896 |
||
897 |
padding ~~ 8 ifTrue:[ |
|
| 1642 | 898 |
"must repad; ST/X uses byte padding, while ST-80 uses longword |
899 |
padding. This is stupid, and may be changed in ST/X with future versions. |
|
900 |
" |
|
901 |
dstRowBytes := img bytesPerRow. |
|
902 |
srcRowBytes := ((w * d + padding - 1) bitShift:-5) bitShift:2. |
|
903 |
||
904 |
newBits := ByteArray new:(dstRowBytes * h). |
|
905 |
srcIndex := 1. |
|
906 |
dstIndex := 1. |
|
907 |
||
908 |
1 to:h do:[:row | |
|
909 |
newBits replaceFrom:dstIndex |
|
910 |
to:(dstIndex + dstRowBytes - 1) |
|
911 |
with:pixelData |
|
912 |
startingAt:srcIndex. |
|
913 |
srcIndex := srcIndex + srcRowBytes. |
|
914 |
dstIndex := dstIndex + dstRowBytes. |
|
915 |
]. |
|
| 134 | 916 |
] ifFalse:[ |
| 1642 | 917 |
pixelData class isBytes ifFalse:[ |
918 |
newBits := ByteArray withAll:pixelData |
|
919 |
] ifTrue:[ |
|
920 |
newBits := pixelData |
|
921 |
] |
|
| 134 | 922 |
]. |
923 |
img bits:newBits. |
|
924 |
^ img |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
925 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
926 |
"Modified: 8.6.1996 / 10:07:47 / cg" |
| 134 | 927 |
! |
928 |
||
| 283 | 929 |
width:w height:h fromArray:anArray |
930 |
"create a new image, given width, height. Assume a depth of 1 of the |
|
931 |
receiving class is Image. |
|
932 |
Data must be a ByteArray containing correctly aligned bits for depth 1 |
|
933 |
(i.e. 8 bits per byte)." |
|
934 |
||
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
935 |
|cls d pixels| |
| 283 | 936 |
|
937 |
cls := self. |
|
938 |
cls == Image ifTrue:[ |
|
| 1642 | 939 |
cls := self implementorForDepth:1. |
940 |
d := 1. |
|
| 283 | 941 |
] ifFalse:[ |
| 1642 | 942 |
d := cls imageDepth |
| 283 | 943 |
]. |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
944 |
anArray class isBytes ifFalse:[ |
| 1642 | 945 |
pixels := ByteArray withAll:anArray |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
946 |
] ifTrue:[ |
| 1642 | 947 |
pixels := anArray |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
948 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
949 |
^ cls new width:w height:h depth:d fromArray:pixels |
| 191 | 950 |
|
951 |
" |
|
| 283 | 952 |
Image width:8 |
| 1642 | 953 |
height:8 |
954 |
fromArray:#[2r11001100 |
|
955 |
2r00110011 |
|
956 |
2r11001100 |
|
957 |
2r00110011 |
|
958 |
2r11001100 |
|
959 |
2r00110011 |
|
960 |
2r11001100 |
|
961 |
2r00110011]. |
|
| 191 | 962 |
" |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
963 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
964 |
"Modified: 8.6.1996 / 10:07:26 / cg" |
| 283 | 965 |
! ! |
966 |
||
|
1156
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
967 |
!Image class methodsFor:'Signal constants'! |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
968 |
|
| 1307 | 969 |
badImageFormatQuerySignal |
970 |
"return the (query-) signal, which is raised if some |
|
971 |
bitmap-image could not be loaded due to an unrecognized format. |
|
972 |
If unhandled, the image-load returns nil. |
|
973 |
Otherwise, it returns whatever the handler proceeds with. |
|
974 |
The exception gets either the images fileName or an input stream |
|
975 |
as parameter" |
|
976 |
||
977 |
^ BadImageFormatQuerySignal |
|
978 |
||
979 |
"Created: 1.2.1997 / 14:40:29 / cg" |
|
980 |
! |
|
981 |
||
|
1385
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
982 |
cannotRepresentImageSignal |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
983 |
"return the signal, which is raised if some |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
984 |
bitmap-image could not be saved in the requested format. |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
985 |
This happens for example, if a true color image is saved in |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
986 |
xpm format or a color image saved in xbm format. |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
987 |
Applications should either ask the class before saving |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
988 |
(via #canRepresent:) or handle the error and use an alternative |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
989 |
format then." |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
990 |
|
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
991 |
^ CannotRepresentImageSignal |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
992 |
|
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
993 |
"Created: 27.2.1997 / 12:24:43 / cg" |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
994 |
! |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
995 |
|
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
996 |
fileCreationErrorSignal |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
997 |
"return the signal which is raised if a file could not be |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
998 |
created in an image-save operation." |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
999 |
|
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1000 |
^ FileCreationErrorSignal |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1001 |
|
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1002 |
"Created: 27.2.1997 / 12:32:59 / cg" |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1003 |
! |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1004 |
|
|
1156
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1005 |
imageNotFoundQuerySignal |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1006 |
"return the (query-) signal, which is raised if some |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1007 |
bitmap-image could not be loaded from a file. |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1008 |
If unhandled, the image-load returns nil. |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1009 |
Otherwise, it returns whatever the handler proceeds with. |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1010 |
The exception gets the images fileName as parameter" |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1011 |
|
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1012 |
^ ImageNotFoundQuerySignal |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1013 |
|
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1014 |
"Created: 7.1.1997 / 16:04:49 / cg" |
|
1385
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1015 |
! |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1016 |
|
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1017 |
imageSaveErrorSignal |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1018 |
"return the parent signal of all image-save errors." |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1019 |
|
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1020 |
^ ImageSaveErrorSignal |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1021 |
|
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1022 |
"Created: 27.2.1997 / 12:32:23 / cg" |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1023 |
! |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1024 |
|
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1025 |
informationLostQuerySignal |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1026 |
"return the (query-) signal, which is raised if some |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1027 |
bitmap-image is saved in a format which cannot represent |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1028 |
the full image (for example: the images mask). |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1029 |
If unhandled, the image-save proceeds. |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1030 |
Otherwise, the handler may show a warn box or whatever and decide |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1031 |
to proceed or abort the saving." |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1032 |
|
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1033 |
^ InformationLostQuerySignal |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1034 |
|
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
1035 |
"Created: 27.2.1997 / 12:43:50 / cg" |
|
1156
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1036 |
! ! |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1037 |
|
|
1230
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
1038 |
!Image class methodsFor:'cleanup'! |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
1039 |
|
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
1040 |
releaseResourcesOnDevice:aDevice |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
1041 |
"this is sent when a display connection is closed, |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
1042 |
to release all cached Images from that device" |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
1043 |
|
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
1044 |
Lobby |
| 1642 | 1045 |
unregisterAllForWhich:[:anImage | |
1046 |
|ok| |
|
1047 |
ok := anImage graphicsDevice == aDevice. |
|
1048 |
ok ifTrue:[ |
|
1049 |
anImage quickRelease |
|
1050 |
]. |
|
1051 |
ok |
|
1052 |
] |
|
|
1230
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
1053 |
|
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
1054 |
"Created: 16.1.1997 / 19:30:44 / cg" |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
1055 |
"Modified: 16.1.1997 / 19:33:49 / cg" |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
1056 |
! ! |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
1057 |
|
|
1086
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
1058 |
!Image class methodsFor:'file reading'! |
| 650 | 1059 |
|
1060 |
fromFile:aFileName |
|
1061 |
"read an image from a file - this methods tries to find |
|
1062 |
out the file format itself (by the extension and by contents) |
|
| 1143 | 1063 |
and lets the appropriate reader read the file. |
1064 |
Also, all bitmap directories along the searchPath are checked |
|
1065 |
for the file; thus, you can place your private images into a |
|
1066 |
separate directory, thereby overriding system bitmaps easily. |
|
|
1156
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1067 |
If the file is unreadable or does not contain an appropriate image, |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1068 |
the ImageNotFoundQuerySignal is raised, which may be handled to |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1069 |
proceed with some replacement image. If unhandled, nil is returned." |
| 650 | 1070 |
|
| 1307 | 1071 |
|image name fn nm inStream suffix readerClass| |
| 650 | 1072 |
|
1073 |
" |
|
| 1143 | 1074 |
before trying each reader, check if the file is readable |
| 650 | 1075 |
" |
| 1307 | 1076 |
name := aFileName asFilename name. |
1077 |
||
| 650 | 1078 |
inStream := Smalltalk systemFileStreamFor:name. |
1079 |
inStream isNil ifTrue:[ |
|
| 1642 | 1080 |
inStream := Smalltalk bitmapFileStreamFor:name. |
1081 |
inStream isNil ifTrue:[ |
|
1082 |
||
1083 |
"/ this signal is a query - if noone seems to |
|
1084 |
"/ care, return nil. |
|
1085 |
"/ However, a handler may provide a replacement. |
|
| 1307 | 1086 |
|
1087 |
"/ ('IMAGE: ' , aFileName , ' does not exist or is not readable') infoPrintCR.
|
|
| 1642 | 1088 |
^ ImageNotFoundQuerySignal |
1089 |
raiseRequestWith:aFileName |
|
1090 |
errorString:('IMAGE: ''' , aFileName , ''' does not exist or is not readable').
|
|
1091 |
]. |
|
1092 |
name := 'bitmaps/' , name. |
|
| 650 | 1093 |
]. |
1094 |
inStream close. |
|
1095 |
||
1096 |
nm := name. |
|
| 1307 | 1097 |
fn := nm asFilename. |
1098 |
suffix := fn suffix. |
|
1099 |
||
1100 |
"/ |
|
1101 |
"/ handle compressed-suffix |
|
1102 |
"/ |
|
1103 |
(#('Z' 'gz') includes:suffix) ifTrue:[
|
|
| 1642 | 1104 |
fn := fn withoutSuffix. |
1105 |
nm := fn name. |
|
1106 |
suffix := fn suffix. |
|
| 1307 | 1107 |
]. |
1108 |
||
1109 |
suffix isEmpty ifTrue:[ |
|
| 1642 | 1110 |
suffix := nm. |
| 1307 | 1111 |
]. |
1112 |
||
1113 |
"/ |
|
1114 |
"/ get the imageReader class from the files extension |
|
1115 |
"/ and ask it first |
|
1116 |
||
|
1469
12e083fba6e0
handle no-suffix case in #fromFile:
Claus Gittinger <cg@exept.de>
parents:
1461
diff
changeset
|
1117 |
readerClass := FileFormats at:(suffix asLowercase) ifAbsent:nil. |
| 1307 | 1118 |
readerClass notNil ifTrue:[ |
| 1642 | 1119 |
image := readerClass fromFile:name. |
1120 |
image notNil ifTrue:[^ image]. |
|
| 650 | 1121 |
]. |
1122 |
||
1123 |
" |
|
1124 |
no known extension - ask all readers if they know |
|
1125 |
this format ... |
|
| 1143 | 1126 |
... these look into the file, and investigate the header. |
| 1307 | 1127 |
therefore, it takes a bit longer. |
| 650 | 1128 |
" |
1129 |
FileFormats do:[:readerClass | |
|
| 1642 | 1130 |
readerClass notNil ifTrue:[ |
1131 |
(readerClass isValidImageFile:name) ifTrue:[ |
|
1132 |
^ readerClass fromFile:name |
|
1133 |
] |
|
1134 |
] |
|
| 650 | 1135 |
]. |
1136 |
||
| 1307 | 1137 |
"/ nope - unknown format |
1138 |
"/ |
|
1139 |
"/ this signal is a query - if noone seems to |
|
1140 |
"/ care, return nil. |
|
1141 |
"/ However, a handler may provide a replacement. |
|
1142 |
||
1143 |
"/ 'IMAGE: unknown image file format: ' infoPrint. aFileName infoPrintNL. |
|
1144 |
^ ImageNotFoundQuerySignal |
|
| 1642 | 1145 |
raiseRequestWith:aFileName |
1146 |
errorString:('IMAGE: unknown image file format: ''' , aFileName , '''').
|
|
| 650 | 1147 |
|
1148 |
" |
|
1149 |
Image fromFile:'bitmaps/dano.tiff' |
|
1150 |
Image fromFile:'bitmaps/test.fax' |
|
1151 |
Image fromFile:'bitmaps/voice.tiff' |
|
1152 |
Image fromFile:'voice.tiff' |
|
1153 |
||
1154 |
Image fromFile:'../fileIn/bitmaps/claus.gif' |
|
1155 |
Image fromFile:'../fileIn/bitmaps/garfield.gif' |
|
1156 |
||
1157 |
Image fromFile:'../fileIn/bitmaps/founders.im8' |
|
1158 |
Image fromFile:'../goodies/faces/next.com/steve.face' |
|
1159 |
||
1160 |
Image fromFile:'/LocalLibrary/Images/OS2/dos3.ico' |
|
1161 |
Image fromFile:'bitmaps/globe1.xbm' |
|
1162 |
Image fromFile:'bitmaps/globe1.xbm.Z' |
|
1163 |
Image fromFile:'bitmaps/hello_world.icon' |
|
1164 |
" |
|
1165 |
||
|
1156
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1166 |
" |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1167 |
Image fromFile:'fooBar' |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1168 |
" |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1169 |
|
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1170 |
"giving a messgage for non-existing images: |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1171 |
|
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1172 |
Image imageNotFoundQuerySignal |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1173 |
handle:[:ex | |
| 1642 | 1174 |
ex errorString printCR. |
1175 |
ex proceedWith:nil |
|
|
1156
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1176 |
] do:[ |
| 1642 | 1177 |
Image fromFile:'fooBar' |
|
1156
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1178 |
] |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1179 |
" |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1180 |
|
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1181 |
"giving a replacement for non-existing images: |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1182 |
|
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1183 |
Image imageNotFoundQuerySignal |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1184 |
answer:(Image fromFile:'bitmaps/SmalltalkX.xbm') |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1185 |
do:[ |
| 1642 | 1186 |
Image fromFile:'fooBar' |
|
1156
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1187 |
] |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1188 |
" |
|
71ded63a3fae
dont output a message for non-existing images;
Claus Gittinger <cg@exept.de>
parents:
1143
diff
changeset
|
1189 |
|
|
1469
12e083fba6e0
handle no-suffix case in #fromFile:
Claus Gittinger <cg@exept.de>
parents:
1461
diff
changeset
|
1190 |
"Modified: 19.3.1997 / 23:14:44 / cg" |
| 1051 | 1191 |
! |
1192 |
||
| 1143 | 1193 |
fromFile:aFileName on:aDevice |
1194 |
"read an image from a file and prepare a device representation. |
|
| 1307 | 1195 |
Return nil (or whatever a handler returned), |
1196 |
if the file is unreadable or does not contain an appropriate image." |
|
| 1143 | 1197 |
|
1198 |
|img| |
|
1199 |
||
1200 |
img := self fromFile:aFileName. |
|
1201 |
img notNil ifTrue:[ |
|
| 1642 | 1202 |
^ img on:aDevice |
| 1143 | 1203 |
]. |
1204 |
^ nil |
|
| 1307 | 1205 |
|
1206 |
"Modified: 1.2.1997 / 14:48:07 / cg" |
|
| 1143 | 1207 |
! |
1208 |
||
| 1139 | 1209 |
fromFile:aFileName resolution:res |
1210 |
"read an image from a file and (if required) scale the image |
|
| 1143 | 1211 |
as appropriate (only with very high resolution displays). |
| 1307 | 1212 |
Return nil (or whatever a handler returned), |
1213 |
if the file is unreadable or does not contain an appropriate image." |
|
| 1143 | 1214 |
|
1215 |
^ self fromFile:aFileName resolution:res on:nil |
|
| 1139 | 1216 |
|
1217 |
"Created: 19.12.1996 / 14:02:13 / cg" |
|
| 1307 | 1218 |
"Modified: 1.2.1997 / 14:48:16 / cg" |
| 1139 | 1219 |
! |
1220 |
||
| 1143 | 1221 |
fromFile:aFileName resolution:dpi on:aDevice |
| 1139 | 1222 |
"read an image from a file and (if required) scale the image |
| 1143 | 1223 |
as appropriate (only with very high resolution displays). |
1224 |
Prepare a device representation. |
|
| 1307 | 1225 |
Return nil (or whatever a handler returned), |
1226 |
if the file is unreadable or does not contain an appropriate image." |
|
| 1143 | 1227 |
|
1228 |
|img dev dpiH mag| |
|
1229 |
||
1230 |
img := self fromFile:aFileName. |
|
1231 |
img isNil ifTrue:[^ nil]. |
|
1232 |
||
1233 |
"if the devices resolution is within +- 50% of dpi, no magnify is needed" |
|
1234 |
dev := aDevice. |
|
1235 |
dev isNil ifTrue:[ |
|
| 1642 | 1236 |
"should not happen ..." |
1237 |
dev := Screen current |
|
| 1143 | 1238 |
]. |
1239 |
||
1240 |
dpiH := dev horizontalPixelPerInch. |
|
1241 |
((dpi >= (dpiH * 0.75)) and:[dpi <= (dpiH * 1.5)]) ifTrue:[^ img]. |
|
1242 |
mag := (dpiH / dpi) rounded. |
|
1243 |
mag = 0 ifTrue:[^ img]. |
|
1244 |
mag = 1 ifTrue:[^ img]. |
|
1245 |
||
1246 |
img := img magnifiedBy:(mag @ mag). |
|
1247 |
aDevice notNil ifTrue:[ |
|
| 1642 | 1248 |
"should not happen ..." |
1249 |
^ img on:aDevice |
|
| 1143 | 1250 |
]. |
1251 |
^ img |
|
| 1307 | 1252 |
|
1253 |
"Modified: 1.2.1997 / 14:48:20 / cg" |
|
| 1139 | 1254 |
! |
1255 |
||
| 1051 | 1256 |
fromStream:aStream |
1257 |
"read an image from a stream - this methods tries to find |
|
1258 |
out the file format itself (by contents) |
|
1259 |
and lets the appropriate reader read the file. |
|
| 1307 | 1260 |
To do this, the stream must be positionable. |
1261 |
Return nil (or whatever a handler returned), |
|
1262 |
if the stream does not contain an appropriate image." |
|
| 1051 | 1263 |
|
| 1063 | 1264 |
|image| |
| 1051 | 1265 |
|
1266 |
" |
|
1267 |
ask all readers if they know |
|
1268 |
this format ... |
|
1269 |
" |
|
1270 |
FileFormats do:[:readerClass | |
|
| 1642 | 1271 |
readerClass notNil ifTrue:[ |
1272 |
image := readerClass fromStream:aStream. |
|
1273 |
image notNil ifTrue:[^ image]. |
|
1274 |
] |
|
| 1051 | 1275 |
]. |
1276 |
||
1277 |
" |
|
1278 |
nope - unknown format |
|
1279 |
" |
|
| 1307 | 1280 |
"/ 'Image [info]: unknown image file format in stream: ' infoPrintCR. |
1281 |
||
1282 |
^ ImageNotFoundQuerySignal |
|
| 1642 | 1283 |
raiseRequestWith:aStream |
1284 |
errorString:('IMAGE: unknown image file format in stream').
|
|
| 1051 | 1285 |
|
1286 |
" |
|
1287 |
Image fromFile:'bitmaps/dano.tiff' |
|
1288 |
Image fromFile:'bitmaps/test.fax' |
|
1289 |
Image fromFile:'bitmaps/voice.tiff' |
|
1290 |
Image fromFile:'voice.tiff' |
|
1291 |
||
1292 |
Image fromFile:'../fileIn/bitmaps/claus.gif' |
|
1293 |
Image fromFile:'../fileIn/bitmaps/garfield.gif' |
|
1294 |
||
1295 |
Image fromFile:'../fileIn/bitmaps/founders.im8' |
|
1296 |
Image fromFile:'../goodies/faces/next.com/steve.face' |
|
1297 |
||
1298 |
Image fromFile:'/LocalLibrary/Images/OS2/dos3.ico' |
|
1299 |
Image fromFile:'bitmaps/globe1.xbm' |
|
1300 |
Image fromFile:'bitmaps/globe1.xbm.Z' |
|
1301 |
Image fromFile:'bitmaps/hello_world.icon' |
|
1302 |
" |
|
1303 |
||
1304 |
"Created: 13.9.1996 / 18:06:00 / cg" |
|
| 1307 | 1305 |
"Modified: 1.2.1997 / 14:48:41 / cg" |
1306 |
! |
|
1307 |
||
1308 |
fromStream:aStream using:aReaderClass |
|
1309 |
"read an image from a stream, given an imageReaderClass. |
|
1310 |
Use this, if you know the files format, but it has an invalid |
|
1311 |
extension (or non-definite header), so #fromStream: could not |
|
1312 |
find out the images format. |
|
1313 |
Return nil (or whatever a handler returned), |
|
1314 |
if the stream does not contain an appropriate image." |
|
1315 |
||
1316 |
|image| |
|
1317 |
||
1318 |
image := aReaderClass fromStream:aStream. |
|
1319 |
image notNil ifTrue:[^ image]. |
|
1320 |
||
1321 |
" |
|
1322 |
nope - unknown format |
|
1323 |
" |
|
1324 |
"/ 'Image [info]: unknown image file format in stream: ' infoPrintCR. |
|
1325 |
||
1326 |
^ ImageNotFoundQuerySignal |
|
| 1642 | 1327 |
raiseRequestWith:aStream |
1328 |
errorString:('IMAGE: unknown image file format in stream').
|
|
| 1307 | 1329 |
|
1330 |
"Created: 1.2.1997 / 14:46:20 / cg" |
|
1331 |
"Modified: 1.2.1997 / 14:48:53 / cg" |
|
| 650 | 1332 |
! ! |
1333 |
||
|
1086
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
1334 |
!Image class methodsFor:'misc'! |
| 283 | 1335 |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
1336 |
ditherAlgorithm |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
1337 |
"return the way we dither - |
| 1642 | 1338 |
#threshold, or nil -> no dither |
1339 |
#pattern, or #ordered -> orderedDither (ugly, but fast) |
|
1340 |
#error or #floydSteinberg -> errorDiffusion; much better |
|
1341 |
#burkes -> errorDiffusion; even better." |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
1342 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
1343 |
^ DitherAlgorithm |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
1344 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
1345 |
"Created: 17.6.1996 / 18:57:47 / cg" |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
1346 |
! |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
1347 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
1348 |
ditherAlgorithm:aSymbol |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
1349 |
"define how to dither - |
| 1642 | 1350 |
#threshold, or nil -> no dither |
1351 |
#pattern, or #ordered -> orderedDither (ugly, but fast) |
|
1352 |
#error or #floydSteinberg -> errorDiffusion; much better |
|
1353 |
#burkes -> errorDiffusion; even better." |
|
| 283 | 1354 |
|
1355 |
DitherAlgorithm := aSymbol |
|
1356 |
||
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
1357 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
1358 |
Image dither:#pattern |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
1359 |
Image dither:#floydSteinberg |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
1360 |
Image dither:#burkes |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
1361 |
Image dither:nil |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
1362 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
1363 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
1364 |
"Modified: 10.6.1996 / 12:27:09 / cg" |
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
1365 |
"Created: 17.6.1996 / 18:57:19 / cg" |
| 283 | 1366 |
! |
1367 |
||
1368 |
numberOfDitherColors:n |
|
1369 |
"define how many colors (i.e. patterns) to use when |
|
1370 |
doing a pattern dither" |
|
1371 |
||
1372 |
NumberOfDitherColors := n |
|
| 798 | 1373 |
! |
1374 |
||
1375 |
orderedDitherMatrixOfSize:sz |
|
1376 |
sz == 2 ifTrue:[ |
|
| 1642 | 1377 |
^ #[ |
1378 |
0 2 |
|
1379 |
3 1 |
|
1380 |
]. |
|
| 798 | 1381 |
]. |
1382 |
||
1383 |
sz == 4 ifTrue:[ |
|
| 1642 | 1384 |
^ #[ |
1385 |
0 8 2 10 |
|
1386 |
12 4 14 6 |
|
1387 |
3 11 1 9 |
|
1388 |
15 7 13 5 |
|
1389 |
]. |
|
| 798 | 1390 |
]. |
1391 |
||
1392 |
sz == 8 ifTrue:[ |
|
| 1642 | 1393 |
^ #[ |
1394 |
0 32 8 40 2 34 10 42 |
|
1395 |
48 16 56 24 50 18 58 26 |
|
1396 |
12 44 4 36 14 46 6 38 |
|
1397 |
60 28 52 20 62 30 54 22 |
|
1398 |
||
1399 |
3 35 11 43 1 33 9 41 |
|
1400 |
51 19 59 27 49 17 57 25 |
|
1401 |
15 47 7 39 13 45 5 37 |
|
1402 |
63 31 55 23 61 29 53 21 |
|
1403 |
]. |
|
| 798 | 1404 |
]. |
1405 |
||
1406 |
^ nil |
|
1407 |
||
1408 |
"Created: 7.6.1996 / 14:15:05 / cg" |
|
| 283 | 1409 |
! ! |
1410 |
||
|
1086
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
1411 |
!Image class methodsFor:'queries'! |
| 283 | 1412 |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1413 |
defaultPhotometric |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1414 |
"return the default photometric pixel interpretation" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1415 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1416 |
^ #blackIs0 |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1417 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1418 |
"Modified: 20.4.1996 / 23:40:41 / cg" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1419 |
"Created: 10.6.1996 / 18:08:12 / cg" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1420 |
! |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1421 |
|
| 283 | 1422 |
imageDepth |
| 579 | 1423 |
"return the depth of images represented by instances of |
1424 |
this class. |
|
1425 |
Must be redefined in concrete subclasses" |
|
1426 |
||
1427 |
^ self shouldNotImplement |
|
1428 |
||
1429 |
"Modified: 20.4.1996 / 23:40:41 / cg" |
|
| 191 | 1430 |
! |
1431 |
||
| 1306 | 1432 |
imageFileSuffixes |
1433 |
"return a collection of suffixes which are recognized as image-file suffix" |
|
1434 |
||
1435 |
^ FileFormats keys |
|
1436 |
||
1437 |
" |
|
1438 |
Image imageFileSuffixes |
|
1439 |
" |
|
1440 |
! |
|
1441 |
||
| 1572 | 1442 |
imageReaderClassForSuffix:aSuffix |
1443 |
"return an appropriate imageReader class for a given file-suffix" |
|
1444 |
||
1445 |
^ FileFormats at:(aSuffix asLowercase) ifAbsent:nil. |
|
1446 |
||
1447 |
" |
|
1448 |
Image imageReaderClassForSuffix:'tiff' |
|
1449 |
" |
|
1450 |
||
| 1573 | 1451 |
"Modified: 10.4.1997 / 17:36:37 / cg" |
| 1572 | 1452 |
! |
1453 |
||
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
1454 |
implementorForDepth:depth |
| 283 | 1455 |
"return the class, which best implements images of depth" |
1456 |
||
1457 |
depth == 1 ifTrue:[^ Depth1Image]. |
|
1458 |
depth == 2 ifTrue:[^ Depth2Image]. |
|
| 1623 | 1459 |
depth <= 4 ifTrue:[^ Depth4Image]. |
1460 |
depth <= 8 ifTrue:[^ Depth8Image]. |
|
1461 |
depth <= 16 ifTrue:[^ Depth16Image]. |
|
1462 |
depth <= 24 ifTrue:[^ Depth24Image]. |
|
| 283 | 1463 |
^ self |
|
1611
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1464 |
! |
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1465 |
|
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1466 |
isImageFileSuffix:aSuffix |
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1467 |
"return true, if the given suffix is known to be an image files suffix" |
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1468 |
|
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1469 |
^ self imageFileSuffixes includes:(aSuffix asLowercase) |
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1470 |
|
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1471 |
" |
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1472 |
Image isImageFileSuffix:'gif' |
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1473 |
Image isImageFileSuffix:'xbm' |
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1474 |
Image isImageFileSuffix:'foo' |
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1475 |
" |
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1476 |
|
|
8ec019a529b4
added convenient #isImageFileSuffix:
Claus Gittinger <cg@exept.de>
parents:
1608
diff
changeset
|
1477 |
"Created: 18.4.1997 / 14:55:28 / cg" |
| 283 | 1478 |
! ! |
1479 |
||
|
1086
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
1480 |
!Image class methodsFor:'screen capture'! |
| 283 | 1481 |
|
1482 |
fromScreen |
|
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1483 |
"return an image of the full screen. |
|
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1484 |
WARNING: this temporarily grabs the display |
| 1642 | 1485 |
it may not work from within a buttonMotion |
1486 |
(use #fromScreen:on:grab: with a false grabArg then)." |
|
| 283 | 1487 |
|
1488 |
|display| |
|
1489 |
||
1490 |
display := Screen current. |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1491 |
^ self |
| 1642 | 1492 |
fromScreen:(0@0 corner:(display width @ display height)) |
1493 |
on:display |
|
1494 |
grab:true |
|
|
401
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1495 |
|
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1496 |
" |
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1497 |
Image fromScreen |
| 1307 | 1498 |
Image fromScreen inspect |
1499 |
" |
|
1500 |
||
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1501 |
"Modified: 26.3.1997 / 10:44:55 / cg" |
| 283 | 1502 |
! |
1503 |
||
1504 |
fromScreen:aRectangle |
|
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1505 |
"return an image of a part of the screen. |
|
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1506 |
WARNING: this temporarily grabs the display |
| 1642 | 1507 |
it may not work from within a buttonMotion |
1508 |
(use #fromScreen:on:grab: with a false grabArg then)." |
|
| 283 | 1509 |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1510 |
^ self |
| 1642 | 1511 |
fromScreen:aRectangle |
1512 |
on:Screen current |
|
1513 |
grab:true |
|
| 283 | 1514 |
|
|
401
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1515 |
" |
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1516 |
Image fromScreen:(0@0 corner:100@100) |
| 1307 | 1517 |
(Image fromScreen:(0@0 corner:100@100)) inspect |
1518 |
" |
|
1519 |
||
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1520 |
"Modified: 26.3.1997 / 10:45:02 / cg" |
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1521 |
! |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1522 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1523 |
fromScreen:aRectangle on:aDevice |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1524 |
"return an image of a part of a screen, which may be on |
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1525 |
another display device. |
|
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1526 |
WARNING: this temporarily grabs the display |
| 1642 | 1527 |
it may not work from within a buttonMotion |
1528 |
(use #fromScreen:on:grab: with a false grabArg then)." |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1529 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1530 |
^ self |
| 1642 | 1531 |
fromScreen:aRectangle |
1532 |
on:aDevice |
|
1533 |
grab:true |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1534 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1535 |
" |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1536 |
Image fromScreen:(0@0 corner:100@100) |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1537 |
" |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1538 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1539 |
"get a snapshot of your friends screen ... |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1540 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1541 |
|dpy2| |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1542 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1543 |
dpy2 := XWorkstation new initializeFor:'idefix:0'. |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1544 |
(Image fromScreen:(dpy2 bounds) on:dpy2) inspect |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1545 |
" |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1546 |
|
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1547 |
"Modified: 26.3.1997 / 10:45:08 / cg" |
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1548 |
! |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1549 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1550 |
fromScreen:aRectangle on:aDisplay grab:doGrab |
| 283 | 1551 |
"return an image of a part of the screen, which may be on |
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1552 |
another Display. If the doGrab argument is true, the display |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1553 |
is grabbed (i.e. blocked for others) and a camera cursor is |
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1554 |
shown while the readout is done. |
|
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1555 |
WARNING: with doGrab true, this temporarily grabs the display |
| 1642 | 1556 |
and it may not work from within a buttonMotion |
1557 |
(use with a false grabArg then)." |
|
| 283 | 1558 |
|
|
401
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1559 |
|depth vis img| |
| 283 | 1560 |
|
1561 |
depth := aDisplay depth. |
|
|
401
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1562 |
|
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1563 |
"/ |
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1564 |
"/ for truecolor displays, return a Depth24Image |
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1565 |
"/ (must do this for depth15 & depth16 displays, since |
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1566 |
"/ Depth16Image has no way to specify r/g/b masks ...) |
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1567 |
"/ |
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1568 |
vis := aDisplay visualType. |
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1569 |
(vis == #TrueColor or:[vis == #DirectColor]) ifTrue:[ |
| 1642 | 1570 |
depth > 8 ifTrue:[ |
1571 |
depth := 24. |
|
1572 |
] |
|
|
401
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1573 |
]. |
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1574 |
|
| 283 | 1575 |
img := (self implementorForDepth: depth) new. |
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1576 |
^ img fromScreen:aRectangle on:aDisplay grab:doGrab |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1577 |
|
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1578 |
"Modified: 26.3.1997 / 10:44:39 / cg" |
| 283 | 1579 |
! |
1580 |
||
1581 |
fromScreenArea |
|
1582 |
"return an image of a part of the screen; |
|
| 1307 | 1583 |
let user specify screen area. |
1584 |
This is the same as #fromUser - kept for backward compatibility. |
|
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1585 |
Use #fromUser for ST-80 compatibility. |
|
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1586 |
WARNING: this temporarily grabs the display |
| 1642 | 1587 |
it may not work from within a buttonMotion |
1588 |
(use #fromScreen:on:grab: with a false grabArg then)." |
|
| 283 | 1589 |
|
1590 |
^ self fromScreen:(Rectangle fromUser) |
|
1591 |
||
|
401
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1592 |
" |
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1593 |
Image fromScreenArea |
| 1307 | 1594 |
Image fromScreenArea inspect |
1595 |
" |
|
1596 |
||
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1597 |
"Modified: 26.3.1997 / 10:45:17 / cg" |
| 283 | 1598 |
! |
1599 |
||
1600 |
fromUser |
|
1601 |
"return an image of a part of the screen; let user specify screen area. |
|
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1602 |
Same as fromScreenArea, for ST-80 compatibility. |
|
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1603 |
WARNING: this temporarily grabs the display |
| 1642 | 1604 |
it may not work from within a buttonMotion |
1605 |
(use #fromScreen:on:grab: with a false grabArg then)." |
|
| 283 | 1606 |
|
1607 |
^ self fromScreenArea |
|
1608 |
||
|
401
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1609 |
" |
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
1610 |
Image fromUser |
| 1307 | 1611 |
Image fromUser inspect |
1612 |
" |
|
1613 |
||
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1614 |
"Modified: 26.3.1997 / 10:45:25 / cg" |
| 283 | 1615 |
! |
1616 |
||
1617 |
fromView:aView |
|
1618 |
"return an image taken from a views contents as currently |
|
1619 |
on the screen. The returned image has the same depth and photometric |
|
| 1307 | 1620 |
as the Display. |
1621 |
Notice, that for invisible or partial covered views, |
|
1622 |
the returned Image is NOT correct. |
|
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1623 |
You may want to raise the view before using this method. |
|
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1624 |
WARNING: this temporarily grabs the display |
| 1642 | 1625 |
it may not work from within a buttonMotion |
1626 |
(use #fromView:grab: with a false grabArg then)." |
|
| 283 | 1627 |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1628 |
^ self |
| 1642 | 1629 |
fromView:aView |
1630 |
grab:true |
|
| 191 | 1631 |
|
1632 |
" |
|
| 1307 | 1633 |
Image fromView:(Launcher allInstances first window topView) |
1634 |
Image fromView:(BrowserView allInstances first topView) |
|
1635 |
" |
|
1636 |
||
1637 |
"get a snapshot from whichever view is active: |
|
1638 |
||
1639 |
|active| |
|
1640 |
||
1641 |
active := WindowGroup activeGroup topViews first. |
|
1642 |
(Image fromView:active) inspect |
|
1643 |
" |
|
1644 |
||
|
1043
0688425d02c9
Rename Launcher-->OldLauncher, NewLauncher-->Launcher.
Stefan Vogel <sv@exept.de>
parents:
1041
diff
changeset
|
1645 |
"Modified: 9.9.1996 / 22:41:01 / stefan" |
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1646 |
"Modified: 26.3.1997 / 10:45:40 / cg" |
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1647 |
! |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1648 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1649 |
fromView:aView grab:doGrab |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1650 |
"return an image taken from a views contents as currently |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1651 |
on the screen. If the doGrab argument is true, the display |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1652 |
is grabbed (i.e. blocked for others) and a camera cursor is |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1653 |
shown while the readout is done. |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1654 |
The returned image has the same depth and photometric |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1655 |
as the Display. |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1656 |
Notice, that for invisible or partial covered views, |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1657 |
the returned Image is NOT correct. |
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1658 |
You may want to raise the view before using this method. |
|
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1659 |
WARNING: with doGrab true, this temporarily grabs the display |
| 1642 | 1660 |
and it may not work from within a buttonMotion |
1661 |
(use with a false grabArg then)." |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1662 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1663 |
|org dev| |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1664 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1665 |
dev := aView graphicsDevice. |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1666 |
org := dev translatePoint:(0@0) |
| 1642 | 1667 |
from:(aView id) |
1668 |
to:dev rootWindowId. |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1669 |
^ self fromScreen:(org extent:aView extent) on:dev grab:doGrab |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1670 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
1671 |
"Created: 26.3.1997 / 10:34:20 / cg" |
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
1672 |
"Modified: 26.3.1997 / 10:45:50 / cg" |
| 157 | 1673 |
! ! |
1674 |
||
| 1279 | 1675 |
!Image methodsFor:'ST-80 compatibility'! |
1676 |
||
1677 |
asCachedImage |
|
1678 |
"return the receiver associated to the current screens device. |
|
1679 |
For ST-80 compatibility |
|
1680 |
(ST/X uses Image for both device- and nonDevice-images)" |
|
1681 |
||
1682 |
^ self on:Screen current |
|
1683 |
||
1684 |
"Modified: 23.4.1996 / 11:10:32 / cg" |
|
1685 |
! |
|
1686 |
||
1687 |
asRetainedMedium |
|
1688 |
"return the receiver associated to the current screens device. |
|
1689 |
For ST-80 compatibility |
|
1690 |
(ST/X uses Image for both device- and nonDevice-images)" |
|
1691 |
||
1692 |
^ self on:Screen current |
|
1693 |
||
1694 |
"Modified: 23.4.1996 / 11:10:32 / cg" |
|
1695 |
"Created: 27.1.1997 / 15:49:08 / cg" |
|
| 1325 | 1696 |
! |
1697 |
||
1698 |
bounds:newBounds |
|
1699 |
^ self |
|
1700 |
||
1701 |
"Created: 10.2.1997 / 12:44:46 / cg" |
|
1702 |
! |
|
1703 |
||
| 1433 | 1704 |
containsPoint:aPoint |
1705 |
"in st-80, images are visualComponents ..." |
|
1706 |
||
1707 |
^ self bounds containsPoint:aPoint |
|
1708 |
||
1709 |
"Created: 6.3.1997 / 15:24:12 / cg" |
|
1710 |
! |
|
1711 |
||
| 1403 | 1712 |
convertToPalette:aColormap renderedBy:anImageRenderer |
1713 |
"this does not really mimicri the corresponding ST-80 functionality" |
|
1714 |
||
1715 |
|monoBits convertedImage| |
|
1716 |
||
1717 |
aColormap size == 2 ifTrue:[ |
|
| 1642 | 1718 |
anImageRenderer class == OrderedDither ifTrue:[ |
1719 |
monoBits := self orderedDitheredMonochromeBits. |
|
1720 |
] ifFalse:[ |
|
1721 |
monoBits := self floydSteinbergDitheredMonochromeBits. |
|
1722 |
]. |
|
1723 |
(((aColormap at:1) = Color black) |
|
1724 |
and:[(aColormap at:2) = Color white]) ifTrue:[ |
|
1725 |
"/ ok |
|
1726 |
] ifFalse:[ |
|
1727 |
(((aColormap at:1) = Color white) |
|
1728 |
and:[(aColormap at:2) = Color black]) ifTrue:[ |
|
1729 |
monoBits invert |
|
1730 |
] |
|
1731 |
]. |
|
1732 |
convertedImage := Depth1Image width:width height:height fromArray:monoBits. |
|
1733 |
convertedImage palette:aColormap. |
|
1734 |
^ convertedImage |
|
| 1403 | 1735 |
]. |
1736 |
||
1737 |
self error:'unimplemented operation'. |
|
1738 |
^ self |
|
1739 |
||
1740 |
"Modified: 1.3.1997 / 17:25:50 / cg" |
|
1741 |
! |
|
1742 |
||
| 1433 | 1743 |
paintBasis |
1744 |
"huh - whats that; |
|
1745 |
I guess, I have to return Color for images without a mask, |
|
1746 |
and CoverageValue for those with a mask; for now, always return Color" |
|
1747 |
||
1748 |
^ ColorValue |
|
1749 |
||
1750 |
"Created: 6.3.1997 / 15:24:19 / cg" |
|
1751 |
! |
|
1752 |
||
| 1325 | 1753 |
preferredBounds |
1754 |
^ self bounds |
|
1755 |
||
1756 |
"Created: 10.2.1997 / 12:42:36 / cg" |
|
| 1279 | 1757 |
! ! |
1758 |
||
| 0 | 1759 |
!Image methodsFor:'accessing'! |
1760 |
||
| 592 | 1761 |
bitsPerSample |
1762 |
"return the number of bits per sample. |
|
1763 |
The return value is an array of bits-per-plane." |
|
1764 |
||
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1765 |
bitsPerSample notNil ifTrue:[^ bitsPerSample]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1766 |
^ Array with:self depth |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1767 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1768 |
"Modified: 10.6.1996 / 18:04:21 / cg" |
| 592 | 1769 |
! |
1770 |
||
1771 |
colorMap |
|
1772 |
"return the colormap" |
|
1773 |
||
1774 |
^ colorMap |
|
1775 |
! |
|
1776 |
||
| 852 | 1777 |
colorMap:aColorMap |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
1778 |
"set the colorMap; this also set the photometric to a useful defualt." |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
1779 |
|
| 852 | 1780 |
|sz "{ Class: SmallInteger }"
|
1781 |
sameColors| |
|
1782 |
||
1783 |
(aColorMap isNil and:[colorMap isNil]) ifTrue:[^ self]. |
|
1784 |
photometric == #palette ifTrue:[ |
|
| 1642 | 1785 |
"/ any change at all ? |
1786 |
(sz := aColorMap size) == colorMap size ifTrue:[ |
|
1787 |
sameColors := true. |
|
1788 |
||
1789 |
1 to:sz do:[:idx | |
|
1790 |
(aColorMap at:idx) = (colorMap at:idx) ifFalse:[ |
|
1791 |
sameColors := false. |
|
1792 |
] |
|
1793 |
]. |
|
1794 |
sameColors ifTrue:[^ self]. |
|
1795 |
] |
|
| 852 | 1796 |
]. |
1797 |
||
1798 |
colorMap := aColorMap. |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
1799 |
colorMap notNil ifTrue:[ |
| 1642 | 1800 |
photometric := #palette. |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
1801 |
] ifFalse:[ |
| 1642 | 1802 |
(photometric == #palette) ifTrue:[ |
1803 |
photometric := #blackIs0 |
|
1804 |
] |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
1805 |
]. |
| 852 | 1806 |
deviceForm notNil ifTrue:[ |
| 1642 | 1807 |
self release |
| 852 | 1808 |
] |
| 592 | 1809 |
|
1810 |
"Modified: 31.8.1995 / 03:05:59 / claus" |
|
|
1446
3007549e3d5e
never convert a colorArray to a colorMap
Claus Gittinger <cg@exept.de>
parents:
1433
diff
changeset
|
1811 |
"Modified: 7.3.1997 / 21:24:23 / cg" |
| 592 | 1812 |
! |
1813 |
||
| 757 | 1814 |
container:aVisualContainer |
1815 |
"ignored here - added to allow images to be used like |
|
1816 |
VisualComponents (later, Image should inherit from it)" |
|
1817 |
||
1818 |
"Created: 28.5.1996 / 23:43:49 / cg" |
|
1819 |
"Modified: 29.5.1996 / 10:22:23 / cg" |
|
1820 |
! |
|
1821 |
||
| 592 | 1822 |
depth |
1823 |
"return the depth of the image" |
|
1824 |
||
1825 |
^ self bitsPerPixel |
|
1826 |
! |
|
1827 |
||
1828 |
device |
|
1829 |
"return the device, the receiver is associated with. |
|
1830 |
Return nil, if the image is unassigned." |
|
1831 |
||
1832 |
^ device |
|
1833 |
! |
|
1834 |
||
1835 |
extent |
|
1836 |
"return the images extent" |
|
1837 |
||
1838 |
^ width@height |
|
1839 |
! |
|
1840 |
||
1841 |
fullColorId |
|
1842 |
"return the id of the full color image on the device. |
|
1843 |
Return nil, if the image is unassigned." |
|
1844 |
||
1845 |
fullColorDeviceForm isNil ifTrue:[^ nil]. |
|
1846 |
^ fullColorDeviceForm id |
|
1847 |
! |
|
1848 |
||
| 728 | 1849 |
graphicsDevice |
1850 |
"same as #device - for ST-80 compatibility" |
|
1851 |
||
1852 |
^ device |
|
1853 |
! |
|
| 744 | 1854 |
|
| 592 | 1855 |
height |
1856 |
"return the height of the image" |
|
1857 |
||
1858 |
^ height |
|
1859 |
! |
|
1860 |
||
1861 |
id |
|
1862 |
"return the id of the image on the device. |
|
1863 |
Return nil, if the image is unassigned." |
|
1864 |
||
1865 |
deviceForm isNil ifTrue:[^ nil]. |
|
1866 |
^ deviceForm id |
|
1867 |
! |
|
1868 |
||
| 896 | 1869 |
mask |
1870 |
^ mask |
|
1871 |
||
1872 |
"Created: 21.6.1996 / 12:57:44 / cg" |
|
1873 |
! |
|
1874 |
||
| 906 | 1875 |
mask:anotherImage |
1876 |
"set the images mask - currently, this may be nil or a Depth1Image. |
|
1877 |
(it is planned to support alpha information in a Depth8 maskImage in |
|
1878 |
the near future). |
|
1879 |
For depth1 masks: each pixel of the image where a corresponding |
|
| 1642 | 1880 |
1-bit is present in the mask will be drawn; |
1881 |
0-bit mask pixels lead to transparent pixels. |
|
| 906 | 1882 |
|
1883 |
For depth8 masks: (future): |
|
| 1642 | 1884 |
each pixel specifies the alpha value (0..255), |
1885 |
which specifies the transparency of that pixel. |
|
1886 |
0 means completely transparent, 255 means completely |
|
1887 |
opaque. The 1-plane mask is a special case of this, |
|
1888 |
interpreting a 0 as a 0 alpha value and 1's as an |
|
1889 |
alpha value of 255." |
|
| 906 | 1890 |
|
| 1591 | 1891 |
mask := anotherImage. |
1892 |
maskedPixelsAre0 := false. |
|
| 906 | 1893 |
|
1894 |
"Created: 27.6.1996 / 17:45:22 / cg" |
|
| 1591 | 1895 |
"Modified: 12.4.1997 / 12:04:39 / cg" |
| 906 | 1896 |
! |
1897 |
||
| 1587 | 1898 |
maskedPixelsAre0 |
1899 |
"return true if masked pixels have been cleared to zero" |
|
1900 |
||
| 1594 | 1901 |
maskedPixelsAre0 isNil ifTrue:[^ false]. |
| 1587 | 1902 |
^ maskedPixelsAre0 |
| 1594 | 1903 |
|
1904 |
"Modified: 14.4.1997 / 17:20:52 / cg" |
|
| 1587 | 1905 |
! |
1906 |
||
1907 |
maskedPixelsAre0:aBoolean |
|
1908 |
"set/clear the flag which states if masked pixels |
|
| 1591 | 1909 |
have been set to zero. Knowing this to be true allows |
1910 |
faster drawing of the image later; (however, not setting |
|
1911 |
it will still produce correct output). |
|
1912 |
This flag is typically set by image readers." |
|
| 1587 | 1913 |
|
1914 |
maskedPixelsAre0 := aBoolean |
|
| 1591 | 1915 |
|
1916 |
"Modified: 12.4.1997 / 12:08:42 / cg" |
|
| 1587 | 1917 |
! |
1918 |
||
| 592 | 1919 |
monochromeId |
1920 |
"return the id of the monochrome image on the device. |
|
1921 |
Return nil, if the image is unassigned." |
|
1922 |
||
1923 |
monoDeviceForm isNil ifTrue:[^ nil]. |
|
1924 |
^ monoDeviceForm id |
|
1925 |
! |
|
1926 |
||
1927 |
palette |
|
1928 |
"return the colormap; ST-80 compatibility" |
|
1929 |
||
1930 |
^ colorMap |
|
1931 |
! |
|
1932 |
||
1933 |
palette:aColormap |
|
1934 |
"set the colormap; ST-80 compatibility" |
|
1935 |
||
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
1936 |
self colorMap:aColormap |
| 592 | 1937 |
|
1938 |
"Created: 1.2.1996 / 15:09:25 / cg" |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
1939 |
"Modified: 8.6.1996 / 09:54:02 / cg" |
| 592 | 1940 |
! |
1941 |
||
1942 |
photometric |
|
1943 |
"return the photometric, a symbol such as #palette, #rgb etc." |
|
1944 |
||
1945 |
^ photometric |
|
1946 |
! |
|
1947 |
||
1948 |
samplesPerPixel |
|
1949 |
"return the number of samples per pixel in the image. |
|
1950 |
The return value is an array of bits-per-plane." |
|
1951 |
||
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1952 |
samplesPerPixel notNil ifTrue:[^ samplesPerPixel]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1953 |
^ 1 |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1954 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
1955 |
"Modified: 10.6.1996 / 18:03:30 / cg" |
| 592 | 1956 |
! |
1957 |
||
1958 |
width |
|
1959 |
"return the width of the image" |
|
1960 |
||
1961 |
^ width |
|
1962 |
! ! |
|
1963 |
||
1964 |
!Image methodsFor:'accessing - pixels'! |
|
1965 |
||
| 0 | 1966 |
at:aPoint |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1967 |
"WARNING: for now, this returns a pixels color |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1968 |
(backward compatibility with ST/X) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1969 |
In the future, this will return a pixel value (ST-80 compatibility) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1970 |
Use #colorAt: - for future compatibility. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1971 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1972 |
retrieve the pixel at aPoint; return a color. |
| 2 | 1973 |
Pixels start at 0@0 for upper left pixel, end at |
| 81 | 1974 |
(width-1)@(height-1) for lower right pixel. |
| 2 | 1975 |
You should not use this method for image-processing, its |
| 81 | 1976 |
very slow ... |
1977 |
(it is meant to access individual pixels - for example, in a bitmap editor)" |
|
| 0 | 1978 |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1979 |
'Image [warning]: the Image>>at: will change semantics soon' infoPrintCR. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1980 |
^ self colorAtX:(aPoint x) y:(aPoint y) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1981 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1982 |
"Modified: 24.4.1997 / 17:31:40 / cg" |
| 0 | 1983 |
! |
1984 |
||
| 283 | 1985 |
at:aPoint put:aColor |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1986 |
"WARNING: for now, this expects a pixels color |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1987 |
(backward compatibility with ST/X) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1988 |
In the future, this will expect a pixel value (ST-80 compatibility) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1989 |
Use #colorAt:put: - for future compatibility. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1990 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1991 |
set the pixel at aPoint to aColor. |
| 283 | 1992 |
Pixels start at 0@0 for the upper left pixel, end at |
1993 |
(width-1)@(height-1) for lower right pixel. |
|
1994 |
You should not use this method for image-processing, its |
|
1995 |
very slow ... |
|
1996 |
(it is meant to access individual pixels - for example, in a bitmap editor)" |
|
1997 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
1998 |
'Image [warning]: the Image>>at:put: will change semantics soon' infoPrintCR. |
| 283 | 1999 |
^ self atX:aPoint x y:aPoint y put:aColor |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2000 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2001 |
"Modified: 24.4.1997 / 17:31:59 / cg" |
| 283 | 2002 |
! |
2003 |
||
2004 |
atPoint:aPoint |
|
2005 |
"ST-80 compatibility: return the pixelValue at:aPoint." |
|
2006 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2007 |
^ self pixelAtX:aPoint x y:aPoint y |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2008 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2009 |
"Modified: 24.4.1997 / 16:18:44 / cg" |
| 283 | 2010 |
! |
2011 |
||
| 1433 | 2012 |
atPoint:aPoint put:aPixelValue |
2013 |
"ST-80 compatibility: set the pixelValue at:aPoint." |
|
2014 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2015 |
^ self pixelAtX:aPoint x y:aPoint y put:aPixelValue |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2016 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2017 |
"Modified: 24.4.1997 / 17:17:59 / cg" |
| 1433 | 2018 |
! |
2019 |
||
| 0 | 2020 |
atX:x y:y |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2021 |
"WARNING: for now, this returns a pixels color |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2022 |
(backward compatibility with ST/X) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2023 |
In the future, this will return a pixel value (ST-80 compatibility) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2024 |
Use #colorAt: - for future compatibility. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2025 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2026 |
Retrieve a pixel at x/y; return a color. |
| 81 | 2027 |
Pixels start at 0@0 for upper left pixel, end at |
2028 |
(width-1)@(height-1) for lower right pixel. |
|
| 2 | 2029 |
You should not use this method for image-processing, its |
| 81 | 2030 |
very slow ... |
2031 |
(it is meant to access individual pixels - for example, in a bitmap editor)" |
|
| 2 | 2032 |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2033 |
'Image [warning]: the Image>>atX:y: will change semantics soon' infoPrintCR. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2034 |
^ self colorAtX:x y:y |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2035 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2036 |
"Modified: 24.4.1997 / 17:28:37 / cg" |
| 2 | 2037 |
! |
2038 |
||
2039 |
atX:x y:y put:aColor |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2040 |
"WARNING: for now, this expects a pixels color |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2041 |
(backward compatibility with ST/X) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2042 |
In the future, this will expect a pixel value (ST-80 compatibility) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2043 |
Use #colorAt:put: - for future compatibility. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2044 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2045 |
set the pixel at x/y to aColor. |
| 81 | 2046 |
Pixels start at 0@0 for the upper left pixel, end at |
2047 |
(width-1)@(height-1) for the lower right pixel. |
|
| 89 | 2048 |
This method checks if the color can be stored in the image. |
2049 |
(i.e. if the receiver is a palette image, the color must be present in there). |
|
2050 |
You should not use this method for image-processing, it is very slow ... |
|
| 81 | 2051 |
(it is meant to access individual pixels - for example, in a bitmap editor)" |
2052 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2053 |
'Image [warning]: the Image>>atX:y:put: will change semantics soon' infoPrintCR. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2054 |
^ self colorAtX:x y:y put:aColor |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2055 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2056 |
"Modified: 24.4.1997 / 17:30:48 / cg" |
| 81 | 2057 |
! |
2058 |
||
| 283 | 2059 |
atX:x y:y putValue:aPixelValue |
2060 |
"set the pixel at x/y to aPixelValue. |
|
2061 |
The interpretation of the pixelValue depends on the photometric |
|
2062 |
and the colormap. (see also: Image>>atX:y:put:) |
|
2063 |
Pixels start at 0@0 for the upper left pixel, end at |
|
2064 |
(width-1) @ (height-1) for the lower right pixel. |
|
2065 |
You should not use this method for image-processing, its |
|
2066 |
very slow ... |
|
2067 |
(it is meant to access individual pixels - for example, in a bitmap editor)" |
|
2068 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2069 |
self obsoleteMethodWarning:'use #pixelAtX:y:put:'. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2070 |
^ self pixelAtX:x y:y put:aPixelValue. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2071 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2072 |
"Modified: 24.4.1997 / 17:15:45 / cg" |
| 283 | 2073 |
! |
2074 |
||
2075 |
bits |
|
2076 |
"return the raw image data; depending on the photometric, |
|
2077 |
this has to be interpreted as monochrome, greyscale, |
|
2078 |
palette or rgb data. It is also packed to be dense, so |
|
2079 |
a 4 bitPerSample palette image will store 2 pixels per byte." |
|
2080 |
||
2081 |
^ bytes |
|
2082 |
! |
|
2083 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2084 |
colorAt:aPoint |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2085 |
"retrieve a pixel at x/y; return a color. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2086 |
Pixels start at 0@0 for upper left pixel, end at |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2087 |
(width-1)@(height-1) for lower right pixel. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2088 |
You should not use this method for image-processing, its |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2089 |
very slow ... |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2090 |
(it is meant to access individual pixels - for example, in a bitmap editor)" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2091 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2092 |
^ self colorAtX:(aPoint x) y:(aPoint y) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2093 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2094 |
"Created: 24.4.1997 / 17:02:31 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2095 |
! |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2096 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2097 |
colorAtX:x y:y |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2098 |
"retrieve a pixel at x/y; return a color. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2099 |
Pixels start at 0@0 for upper left pixel, end at |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2100 |
(width-1)@(height-1) for lower right pixel. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2101 |
You should not use this method for image-processing, its |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2102 |
very slow ... |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2103 |
(it is meant to access individual pixels - for example, in a bitmap editor)" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2104 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2105 |
|pixel| |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2106 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2107 |
pixel := self pixelAtX:x y:y. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2108 |
^ self colorFromValue:pixel |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2109 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2110 |
"Modified: 24.4.1997 / 16:18:53 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2111 |
"Created: 24.4.1997 / 17:00:52 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2112 |
! |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2113 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2114 |
colorAtX:x y:y put:aColor |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2115 |
"set the pixel at x/y to aColor. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2116 |
Pixels start at 0@0 for the upper left pixel, end at |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2117 |
(width-1)@(height-1) for the lower right pixel. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2118 |
This method checks if the color can be stored in the image. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2119 |
(i.e. if the receiver is a palette image, the color must be present in there). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2120 |
You should not use this method for image-processing, it is very slow ... |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2121 |
(it is meant to access individual pixels - for example, in a bitmap editor)" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2122 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2123 |
|pixel| |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2124 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2125 |
pixel := self valueFromColor:aColor. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2126 |
self pixelAtX:x y:y put:pixel. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2127 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2128 |
"Modified: 24.4.1997 / 17:36:20 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2129 |
! |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2130 |
|
| 283 | 2131 |
data |
2132 |
"for backward compatibility - will vanish" |
|
2133 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2134 |
self obsoleteMethodWarning:'use #bits'. |
| 283 | 2135 |
^ bytes |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2136 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2137 |
"Modified: 24.4.1997 / 17:37:57 / cg" |
| 283 | 2138 |
! |
2139 |
||
2140 |
data:aByteArray |
|
2141 |
"for backward compatibility - will vanish" |
|
2142 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2143 |
self obsoleteMethodWarning. |
| 283 | 2144 |
bytes := aByteArray |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2145 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2146 |
"Modified: 24.4.1997 / 17:38:18 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2147 |
! |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2148 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2149 |
pixelAtX:x y:y |
| 81 | 2150 |
"retrieve the pixelValue at aPoint; return an integer number. |
2151 |
Pixels start at 0/0 for upper left pixel, and end at |
|
2152 |
width-1@height-1 for lower right pixel. |
|
2153 |
The returned numbers interpretation depends on the photometric |
|
2154 |
and the colormap. (see also Image>>at: and Image>>atX:y:) |
|
2155 |
You should not use this method for image-processing of |
|
2156 |
big images, its very slow ... |
|
2157 |
(it is meant to access individual pixels - for example, in a bitmap editor)" |
|
| 2 | 2158 |
|
2159 |
^ self subclassResponsibility |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2160 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2161 |
"Created: 24.4.1997 / 16:06:56 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2162 |
! |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2163 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2164 |
pixelAtX:x y:y put:aPixelValue |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2165 |
"set the pixel at x/y to aPixelValue. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2166 |
The interpretation of the pixelValue depends on the photometric |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2167 |
and the colormap. (see also: Image>>atX:y:put:) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2168 |
Pixels start at 0@0 for the upper left pixel, end at |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2169 |
(width-1) @ (height-1) for the lower right pixel. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2170 |
You should not use this method for image-processing, its |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2171 |
very slow ... |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2172 |
(it is meant to access individual pixels - for example, in a bitmap editor)" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2173 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2174 |
^ self subclassResponsibility |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2175 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2176 |
"Created: 24.4.1997 / 17:05:11 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2177 |
! |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2178 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2179 |
rowAt:rowIndex |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2180 |
"retrieve an array filled with pixel values from |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2181 |
a single row. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2182 |
Notice: row indexing starts at 0. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2183 |
This is a slow fallBack method, which works with any depth; |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2184 |
concrete image subclasses should redefine this for more performance." |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2185 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2186 |
|pixelArray| |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2187 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2188 |
pixelArray := self pixelArraySpecies new:width. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2189 |
self rowAt:rowIndex into:pixelArray startingAt:1. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2190 |
^ pixelArray |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2191 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2192 |
" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2193 |
|i| |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2194 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2195 |
i := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2196 |
(i rowAt:0) inspect |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2197 |
" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2198 |
" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2199 |
|i| |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2200 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2201 |
i := Image fromFile:'bitmaps/SBrowser.xbm'. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2202 |
(i rowAt:0) inspect |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2203 |
" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2204 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2205 |
"Modified: 24.4.1997 / 15:51:24 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2206 |
! |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2207 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2208 |
rowAt:rowIndex into:aPixelBuffer |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2209 |
"fill aBuffer with pixel values retrieved from a single row. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2210 |
Notice: row indexing starts at 0." |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2211 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2212 |
^ self rowAt:rowIndex into:aPixelBuffer startingAt:1 |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2213 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2214 |
"Created: 24.4.1997 / 15:44:46 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2215 |
"Modified: 24.4.1997 / 15:51:35 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2216 |
! |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2217 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2218 |
rowAt:rowIndex into:aPixelBuffer startingAt:startIndex |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2219 |
"fill aBuffer with pixel values retrieved from a single row. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2220 |
Notice: row indexing starts at 0. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2221 |
This is a slow fallBack method, which works with any depth; |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2222 |
concrete image subclasses should redefine this for more performance." |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2223 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2224 |
|w "{ Class: SmallInteger }"|
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2225 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2226 |
w := width-1. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2227 |
0 to:w do:[:col | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2228 |
aPixelBuffer at:(col + startIndex) put:(self pixelAtX:col y:rowIndex) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2229 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2230 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2231 |
"Created: 24.4.1997 / 15:05:21 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2232 |
"Modified: 24.4.1997 / 16:52:43 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2233 |
! |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2234 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2235 |
rowAt:rowIndex putAll:pixelArray |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2236 |
"store a single rows pixels from bits in the argument; |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2237 |
Notice: row indexing starts at 0. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2238 |
This is a slow fallBack method, which works with any depth; |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2239 |
concrete image subclasses should redefine this for more performance." |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2240 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2241 |
^ self rowAt:rowIndex putAll:pixelArray startingAt:1 |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2242 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2243 |
"Modified: 24.4.1997 / 15:51:58 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2244 |
! |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2245 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2246 |
rowAt:rowIndex putAll:pixelArray startingAt:startIndex |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2247 |
"store a single rows pixels from bits in the pixelArray argument; |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2248 |
return the pixelArray. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2249 |
Notice: row indexing starts at 0. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2250 |
This is a slow fallBack method, which works with any depth; |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2251 |
concrete image subclasses should redefine this for more performance." |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2252 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2253 |
|w "{ Class: SmallInteger }"|
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2254 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2255 |
w := width-1. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2256 |
0 to:w do:[:col | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2257 |
self pixelAtX:col y:rowIndex put:(pixelArray at:(col + startIndex)) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2258 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2259 |
^ pixelArray |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2260 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2261 |
"Modified: 24.4.1997 / 17:05:57 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2262 |
! |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2263 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2264 |
valueAt:aPoint |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2265 |
"WARNING: for now, this returns a pixels value |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2266 |
(backward compatibility with ST/X) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2267 |
In the future, this will return a color (ST-80 compatibility) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2268 |
Use #pixelAt: - for future compatibility. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2269 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2270 |
Retrieve the pixelValue at aPoint; return an integer number. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2271 |
Pixels start at 0@0 for upper left pixel, end at |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2272 |
width-1@height-1 for lower right pixel. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2273 |
The returned numbers interpretation depends on the photometric |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2274 |
and the colormap. (see also Image>>at: and Image>>atX:y:) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2275 |
You should not use this method for image-processing, its |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2276 |
very slow ... |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2277 |
(it is meant to access individual pixels - for example, in a bitmap editor)" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2278 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2279 |
'Image [warning]: the Image>>valueAt: will change semantics soon' infoPrintCR. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2280 |
^ self pixelAtX:aPoint x y:aPoint y |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2281 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2282 |
"Modified: 24.4.1997 / 17:28:16 / cg" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2283 |
! |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2284 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2285 |
valueAtX:x y:y |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2286 |
"WARNING: for now, this returns a pixels value |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2287 |
(backward compatibility with ST/X) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2288 |
In the future, this will return a color (ST-80 compatibility) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2289 |
Use #pixelAt: - for future compatibility. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2290 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2291 |
Retrieve the pixelValue at aPoint; return an integer number. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2292 |
Pixels start at 0/0 for upper left pixel, and end at |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2293 |
width-1@height-1 for lower right pixel. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2294 |
The returned numbers interpretation depends on the photometric |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2295 |
and the colormap. (see also Image>>at: and Image>>atX:y:) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2296 |
You should not use this method for image-processing of |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2297 |
big images, its very slow ... |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2298 |
(it is meant to access individual pixels - for example, in a bitmap editor)" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2299 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2300 |
'Image [warning]: the Image>>valueAtX:y: will change semantics soon' infoPrintCR. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2301 |
^ self pixelAtX:x y:y |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2302 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
2303 |
"Modified: 24.4.1997 / 17:12:49 / cg" |
| 592 | 2304 |
! ! |
2305 |
||
2306 |
!Image methodsFor:'accessing - private'! |
|
2307 |
||
2308 |
bits:aByteArray |
|
2309 |
"set the raw data. |
|
2310 |
||
2311 |
This interface is only to be used when initializing |
|
2312 |
instances or by image readers. Calling for a change of an |
|
2313 |
existing image may confuse later pixel interpretation." |
|
2314 |
||
2315 |
bytes := aByteArray |
|
2316 |
||
2317 |
"Modified: 23.4.1996 / 11:08:28 / cg" |
|
| 2 | 2318 |
! |
2319 |
||
| 592 | 2320 |
bitsPerSample:aNumber |
2321 |
"set the number of bits per sample. |
|
2322 |
||
2323 |
This interface is only to be used when initializing |
|
2324 |
instances or by image readers. Calling for a change of an |
|
2325 |
existing image may confuse later pixel interpretation." |
|
2326 |
||
2327 |
bitsPerSample := aNumber |
|
2328 |
||
2329 |
"Modified: 23.4.1996 / 11:08:31 / cg" |
|
2330 |
! |
|
2331 |
||
2332 |
depth:d |
|
2333 |
"set the depth of the image. |
|
2334 |
||
2335 |
This interface is only to be used when initializing |
|
2336 |
instances or by image readers. Calling for a change of an |
|
2337 |
existing image may confuse later pixel interpretation." |
|
2338 |
||
|
1362
454d644f6ff7
set depth & bitsPerPixel for ST-80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
1349
diff
changeset
|
2339 |
depth := self depth. |
|
454d644f6ff7
set depth & bitsPerPixel for ST-80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
1349
diff
changeset
|
2340 |
bitsPerPixel := d. |
| 592 | 2341 |
d == 24 ifTrue:[ |
| 1642 | 2342 |
samplesPerPixel := 3. |
2343 |
bitsPerSample := #(8 8 8) |
|
| 592 | 2344 |
] ifFalse:[ |
| 1642 | 2345 |
samplesPerPixel := 1. |
2346 |
bitsPerSample := Array with:d |
|
| 592 | 2347 |
] |
2348 |
||
|
1362
454d644f6ff7
set depth & bitsPerPixel for ST-80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
1349
diff
changeset
|
2349 |
"Modified: 20.2.1997 / 14:39:10 / cg" |
| 592 | 2350 |
! |
2351 |
||
2352 |
extent:anExtent |
|
2353 |
"set the images extent. |
|
2354 |
||
2355 |
This interface is only to be used when initializing |
|
2356 |
instances or by image readers. Calling for a change of an |
|
2357 |
existing image may confuse later pixel interpretation." |
|
2358 |
||
2359 |
width := anExtent x. |
|
2360 |
height := anExtent y |
|
2361 |
||
2362 |
"Modified: 23.4.1996 / 11:08:38 / cg" |
|
2363 |
! |
|
2364 |
||
2365 |
height:aNumber |
|
2366 |
"set the height of the image. |
|
2367 |
||
2368 |
This interface is only to be used when initializing |
|
2369 |
instances or by image readers. Calling for a change of an |
|
2370 |
existing image may confuse later pixel interpretation." |
|
2371 |
||
2372 |
height := aNumber |
|
2373 |
||
2374 |
"Modified: 23.4.1996 / 11:08:40 / cg" |
|
2375 |
! |
|
2376 |
||
2377 |
photometric:aSymbol |
|
2378 |
"set the photometric interpretation of the pixel values. |
|
2379 |
The argument, aSymbol is one of: |
|
| 1642 | 2380 |
#blackIs0, #whiteIs0, #palette, #rgb |
| 592 | 2381 |
See TIFF documentation, from which the photometric concept is borrowed. |
2382 |
||
2383 |
This interface is only to be used when initializing |
|
2384 |
instances or by image readers. Calling for a change of an |
|
2385 |
existing image may confuse later pixel interpretation." |
|
2386 |
||
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2387 |
|b| |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2388 |
|
| 798 | 2389 |
photometric := aSymbol. |
2390 |
bitsPerSample isNil ifTrue:[ |
|
| 1642 | 2391 |
photometric == #rgb ifTrue:[ |
2392 |
b := self class imageDepth // 3. |
|
2393 |
bitsPerSample := Array with:b with:b with:b |
|
2394 |
] ifFalse:[ |
|
2395 |
bitsPerSample := Array with:(self class imageDepth) |
|
2396 |
]. |
|
| 798 | 2397 |
]. |
2398 |
samplesPerPixel isNil ifTrue:[ |
|
| 1642 | 2399 |
photometric == #rgb ifTrue:[ |
2400 |
samplesPerPixel := 3 |
|
2401 |
] ifFalse:[ |
|
2402 |
samplesPerPixel := 1 |
|
2403 |
] |
|
| 798 | 2404 |
]. |
2405 |
||
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2406 |
"Modified: 10.6.1996 / 18:21:29 / cg" |
| 592 | 2407 |
! |
2408 |
||
2409 |
samplesPerPixel:aNumber |
|
2410 |
"set the array of samples per pixel. |
|
2411 |
||
2412 |
This interface is only to be used when initializing |
|
2413 |
instances or by image readers. Calling for a change of an |
|
2414 |
existing image may confuse later pixel interpretation." |
|
2415 |
||
2416 |
samplesPerPixel := aNumber |
|
2417 |
||
2418 |
"Modified: 23.4.1996 / 11:08:45 / cg" |
|
| 81 | 2419 |
! |
2420 |
||
| 283 | 2421 |
width:aNumber |
| 592 | 2422 |
"set the width of the image. |
2423 |
||
2424 |
This interface is only to be used when initializing |
|
2425 |
instances or by image readers. Calling for a change of an |
|
2426 |
existing image may confuse later pixel interpretation." |
|
| 283 | 2427 |
|
2428 |
width := aNumber |
|
| 592 | 2429 |
|
2430 |
"Modified: 23.4.1996 / 11:08:48 / cg" |
|
| 100 | 2431 |
! |
2432 |
||
| 283 | 2433 |
width:w height:h |
| 592 | 2434 |
"set the width and height of the image. |
2435 |
||
2436 |
This interface is only to be used when initializing |
|
2437 |
instances or by image readers. Calling for a change of an |
|
2438 |
existing image may confuse later pixel interpretation." |
|
| 283 | 2439 |
|
2440 |
width := w. |
|
2441 |
height := h |
|
| 592 | 2442 |
|
2443 |
"Modified: 23.4.1996 / 11:08:53 / cg" |
|
| 81 | 2444 |
! |
| 2 | 2445 |
|
| 283 | 2446 |
width:w height:h depth:d |
| 592 | 2447 |
"set the width, height and depth of the image. |
2448 |
||
2449 |
This interface is only to be used when initializing |
|
2450 |
instances or by image readers. Calling for a change of an |
|
2451 |
existing image may confuse later pixel interpretation." |
|
| 283 | 2452 |
|
2453 |
width := w. |
|
2454 |
height := h. |
|
2455 |
self depth:d. |
|
| 592 | 2456 |
|
2457 |
"Modified: 23.4.1996 / 11:08:56 / cg" |
|
| 89 | 2458 |
! |
2459 |
||
| 283 | 2460 |
width:w height:h depth:d fromArray:bits |
| 592 | 2461 |
"set the width, height, depth and pixels of the image. |
2462 |
||
2463 |
This interface is only to be used when initializing |
|
2464 |
instances or by image readers. Calling for a change of an |
|
2465 |
existing image may confuse later pixel interpretation." |
|
| 283 | 2466 |
|
2467 |
width := w. |
|
2468 |
height := h. |
|
2469 |
self depth:d. |
|
2470 |
bytes := bits |
|
| 592 | 2471 |
|
2472 |
"Modified: 23.4.1996 / 11:08:59 / cg" |
|
2473 |
! |
|
2474 |
||
| 1433 | 2475 |
width:w height:h depth:d palette:aColormap |
2476 |
"set the width, height and depth of the image. |
|
2477 |
||
2478 |
This interface is only to be used when initializing |
|
2479 |
instances or by image readers. Calling for a change of an |
|
2480 |
existing image may confuse later pixel interpretation." |
|
2481 |
||
2482 |
width := w. |
|
2483 |
height := h. |
|
2484 |
self depth:d. |
|
2485 |
colorMap := aColormap. |
|
2486 |
aColormap notNil ifTrue:[ |
|
| 1642 | 2487 |
photometric := #palette |
| 1433 | 2488 |
] |
2489 |
||
2490 |
"Modified: 23.4.1996 / 11:08:56 / cg" |
|
2491 |
"Created: 6.3.1997 / 15:23:57 / cg" |
|
2492 |
! |
|
2493 |
||
| 592 | 2494 |
width:w height:h photometric:p samplesPerPixel:spp bitsPerSample:bps colorMap:cm bits:pixels |
2495 |
"set all relevant internal state of the image. |
|
2496 |
||
2497 |
This interface is only to be used when initializing |
|
2498 |
instances or by image readers. Calling for a change of an |
|
2499 |
existing image may confuse later pixel interpretation." |
|
2500 |
||
|
894
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2501 |
^ self |
| 1642 | 2502 |
width:w |
2503 |
height:h |
|
2504 |
photometric:p |
|
2505 |
samplesPerPixel:spp |
|
2506 |
bitsPerSample:bps |
|
2507 |
colorMap:cm |
|
2508 |
bits:pixels |
|
2509 |
mask:nil |
|
|
894
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2510 |
|
|
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2511 |
"Modified: 20.6.1996 / 17:10:24 / cg" |
|
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2512 |
! |
|
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2513 |
|
|
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2514 |
width:w height:h photometric:p samplesPerPixel:spp bitsPerSample:bps colorMap:cm bits:pixels mask:m |
|
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2515 |
"set all relevant internal state of the image. |
|
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2516 |
|
|
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2517 |
This interface is only to be used when initializing |
|
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2518 |
instances or by image readers. Calling for a change of an |
|
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2519 |
existing image may confuse later pixel interpretation." |
|
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2520 |
|
| 592 | 2521 |
width := w. |
2522 |
height := h. |
|
2523 |
photometric := p. |
|
2524 |
samplesPerPixel := spp. |
|
2525 |
bitsPerSample := bps. |
|
2526 |
colorMap := cm. |
|
2527 |
bytes := pixels. |
|
|
894
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2528 |
mask := m. |
|
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2529 |
|
| 592 | 2530 |
"Modified: 23.4.1996 / 11:09:02 / cg" |
|
894
1041c0edbd35
prepare to read mask/alpha channel
Claus Gittinger <cg@exept.de>
parents:
891
diff
changeset
|
2531 |
"Created: 20.6.1996 / 17:09:53 / cg" |
| 0 | 2532 |
! ! |
2533 |
||
| 283 | 2534 |
!Image methodsFor:'binary storage'! |
2535 |
||
2536 |
readBinaryContentsFrom: stream manager: manager |
|
2537 |
"read a binary representation of an image from stream. |
|
2538 |
Redefined to flush any device data." |
|
2539 |
||
2540 |
super readBinaryContentsFrom: stream manager: manager. |
|
2541 |
device := nil. |
|
2542 |
deviceForm := nil. |
|
2543 |
monoDeviceForm := nil. |
|
2544 |
fullColorDeviceForm := nil. |
|
| 0 | 2545 |
! |
2546 |
||
| 283 | 2547 |
storeBinaryDefinitionOn: stream manager: manager |
2548 |
"store a binary representation of the receiver on stream. |
|
| 592 | 2549 |
This is an internal interface for binary storage mechanism. |
| 283 | 2550 |
Redefined to not store the device form (which is recreated at |
2551 |
load time anyway)" |
|
2552 |
||
2553 |
|tDevice tDeviceForm tMonoDeviceForm tFullColorDeviceForm| |
|
2554 |
||
2555 |
tDevice := device. |
|
2556 |
tDeviceForm := deviceForm. |
|
2557 |
tMonoDeviceForm := monoDeviceForm. |
|
2558 |
tFullColorDeviceForm := fullColorDeviceForm. |
|
2559 |
||
2560 |
device := nil. |
|
2561 |
deviceForm := nil. |
|
2562 |
monoDeviceForm := nil. |
|
2563 |
fullColorDeviceForm := nil. |
|
2564 |
||
2565 |
super storeBinaryDefinitionOn: stream manager: manager. |
|
2566 |
||
2567 |
device := tDevice. |
|
2568 |
deviceForm := tDeviceForm. |
|
2569 |
monoDeviceForm := tMonoDeviceForm. |
|
2570 |
fullColorDeviceForm := tFullColorDeviceForm. |
|
| 592 | 2571 |
|
2572 |
"Modified: 23.4.1996 / 09:30:50 / cg" |
|
| 0 | 2573 |
! ! |
2574 |
||
2575 |
!Image methodsFor:'converting'! |
|
2576 |
||
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2577 |
asBurkesDitheredMonochromeImage |
| 837 | 2578 |
"return a burkes dithered monochrome image from the receiver image. |
2579 |
Depending on the images contents, this may or may not look better than |
|
2580 |
a floyd-steinberg dithered image. |
|
2581 |
Notice, that floyd-steinberg dithering is faster; both because less |
|
2582 |
error diffusion is done and due to being specially tuned." |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2583 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2584 |
|monoBits| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2585 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2586 |
monoBits := self burkesDitheredMonochromeBits. |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2587 |
^ Depth1Image width:width height:height fromArray:monoBits |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2588 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2589 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2590 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2591 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2592 |
i := Image fromFile:'garfield.gif'. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2593 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2594 |
i asFloydSteinbergDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2595 |
i asBurkesDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2596 |
i asOrderedDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2597 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2598 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2599 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2600 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2601 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2602 |
i := Image fromFile:'claus.gif'. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2603 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2604 |
i asFloydSteinbergDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2605 |
i asBurkesDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2606 |
i asOrderedDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2607 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2608 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2609 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2610 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2611 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2612 |
i := Depth4Image |
| 1642 | 2613 |
width:4 |
2614 |
height:4 |
|
2615 |
fromArray:#[ |
|
2616 |
16r01 16r23 |
|
2617 |
16r45 16r67 |
|
2618 |
16r89 16rab |
|
2619 |
16rcd 16ref |
|
2620 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2621 |
i := i magnifiedBy:30. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2622 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2623 |
i asFloydSteinbergDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2624 |
i asBurkesDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2625 |
i asOrderedDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2626 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2627 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2628 |
"Created: 10.6.1996 / 12:34:44 / cg" |
| 837 | 2629 |
"Modified: 12.6.1996 / 13:58:16 / cg" |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2630 |
! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2631 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2632 |
asErrorDitheredMonochromeImage |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2633 |
"return an error-diffusion dithered monochrome image from the receiver image." |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2634 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2635 |
DitherAlgorithm == #burkes ifTrue:[ |
| 1642 | 2636 |
^ self asBurkesDitheredMonochromeImage |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2637 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2638 |
DitherAlgorithm == #stevensonArce ifTrue:[ |
| 1642 | 2639 |
^ self asStevensonArgceDitheredMonochromeImage |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2640 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2641 |
^ self asFloydSteinbergDitheredMonochromeImage |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2642 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2643 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2644 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2645 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2646 |
i := Image fromFile:'garfield.gif'. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2647 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2648 |
i asErrorDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2649 |
i asOrderedDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2650 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2651 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2652 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2653 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2654 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2655 |
i := Image fromFile:'claus.gif'. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2656 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2657 |
i asErrorDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2658 |
i asOrderedDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2659 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2660 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2661 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2662 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2663 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2664 |
i := Depth4Image |
| 1642 | 2665 |
width:4 |
2666 |
height:4 |
|
2667 |
fromArray:#[ |
|
2668 |
16r01 16r23 |
|
2669 |
16r45 16r67 |
|
2670 |
16r89 16rab |
|
2671 |
16rcd 16ref |
|
2672 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2673 |
i := i magnifiedBy:30. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2674 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2675 |
i asErrorDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2676 |
i asOrderedDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2677 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2678 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2679 |
"Modified: 10.6.1996 / 14:22:30 / cg" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2680 |
! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2681 |
|
| 854 | 2682 |
asFloydSteinbergDitheredDepth8FormOn:aDevice colors:fixColors nRed:nRed nGreen:nGreen nBlue:nBlue |
2683 |
"return a floyd-steinberg dithered pseudoForm from the palette picture. |
|
2684 |
Use the colors in the fixColors array, which must be fixR x fixG x fixB |
|
2685 |
colors assigned to aDevice, such as the preallocated colors of the |
|
2686 |
Color class. |
|
2687 |
By passing the ditherColors as extra array, this method can |
|
2688 |
also be used to dither an 8bit image into a smaller number of colors, |
|
2689 |
for example to create dithered Depth4Images from Depth8Images." |
|
2690 |
||
2691 |
|pseudoBits f has8BitImage deviceDepth |
|
2692 |
map | |
|
2693 |
||
2694 |
deviceDepth := aDevice depth. |
|
2695 |
deviceDepth == 8 ifTrue:[ |
|
| 1642 | 2696 |
has8BitImage := true. |
| 854 | 2697 |
] ifFalse:[ |
| 1642 | 2698 |
has8BitImage := false. |
2699 |
aDevice supportedImageFormats do:[:fmt | |
|
2700 |
(fmt at:#bitsPerPixel) == 8 ifTrue:[ |
|
2701 |
has8BitImage := true. |
|
2702 |
] |
|
2703 |
] |
|
| 854 | 2704 |
]. |
2705 |
has8BitImage ifFalse:[^ nil]. |
|
2706 |
||
2707 |
pseudoBits := self floydSteinbergDitheredDepth8BitsColors:fixColors nRed:nRed nGreen:nGreen nBlue:nBlue. |
|
2708 |
pseudoBits isNil ifTrue:[^ nil]. |
|
2709 |
||
2710 |
f := Form width:width height:height depth:deviceDepth on:aDevice. |
|
2711 |
f isNil ifTrue:[^ nil]. |
|
2712 |
||
2713 |
"/ |
|
2714 |
"/ have to create a funny colorMap, where |
|
2715 |
"/ color at:index == color colorId:index |
|
2716 |
"/ |
|
2717 |
map := Array new:256. |
|
2718 |
fixColors do:[:clr | |
|
| 1642 | 2719 |
map at:clr colorId + 1 put:clr |
| 854 | 2720 |
]. |
2721 |
f colorMap:map. |
|
2722 |
f initGC. |
|
2723 |
f bits:pseudoBits. |
|
2724 |
aDevice drawBits:pseudoBits bitsPerPixel:8 depth:deviceDepth |
|
| 1642 | 2725 |
width:width height:height |
2726 |
x:0 y:0 |
|
2727 |
into:(f id) x:0 y:0 |
|
2728 |
width:width height:height with:(f gcId). |
|
| 854 | 2729 |
^ f |
2730 |
||
2731 |
" |
|
2732 |
example: |
|
| 1642 | 2733 |
color reduction from Depth8 to Depth4 (dithering) can be done by: |
| 854 | 2734 |
|
2735 |
|img8 reducedImg8 img4 map form| |
|
2736 |
||
2737 |
map := #( |
|
| 1642 | 2738 |
(0 0 0) |
2739 |
(0 0 100) |
|
2740 |
(0 50 0) |
|
2741 |
(0 50 100) |
|
2742 |
(0 100 0) |
|
2743 |
(0 100 100) |
|
2744 |
(100 0 0) |
|
2745 |
(100 0 100) |
|
2746 |
(100 50 0) |
|
2747 |
(100 50 100) |
|
2748 |
(100 100 0) |
|
2749 |
(100 100 100)) collect:[:rgb | (Color red:(rgb at:1) |
|
2750 |
green:(rgb at:2) |
|
2751 |
blue:(rgb at:3)) on:Display]. |
|
| 854 | 2752 |
|
2753 |
img8 := Image fromFile:'bitmaps/bf.im8'. |
|
2754 |
form := img8 paletteImageAsDitheredPseudoFormOn:Display |
|
| 1642 | 2755 |
colors:map |
2756 |
nRed:2 |
|
2757 |
nGreen:3 |
|
2758 |
nBlue:2. |
|
| 854 | 2759 |
img8 := Depth8Image fromForm:form. 'dithered version of original image'. |
2760 |
img4 := Depth4Image fromImage:img8. |
|
2761 |
" |
|
2762 |
||
2763 |
"Modified: 14.6.1996 / 16:52:34 / cg" |
|
2764 |
! |
|
2765 |
||
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2766 |
asFloydSteinbergDitheredGrayFormOn:aDevice |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2767 |
"return a dithered depth-x grey form from the receiver image." |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2768 |
|
| 1063 | 2769 |
|depth bits| |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2770 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2771 |
depth := aDevice depth. |
| 1623 | 2772 |
(depth == 1 |
2773 |
or:[aDevice hasGrayscales not]) ifTrue:[ |
|
| 1642 | 2774 |
"/ for monochrome, there is specialized |
2775 |
"/ monochrome dither code available |
|
2776 |
||
2777 |
bits := self floydSteinbergDitheredMonochromeBits. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2778 |
] ifFalse:[ |
| 1642 | 2779 |
bits := self floydSteinbergDitheredBitsDepth:depth. |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2780 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2781 |
|
| 816 | 2782 |
^ self makeDeviceGrayPixmapOn:aDevice depth:depth fromArray:bits |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2783 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2784 |
" |
| 1063 | 2785 |
|i| |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2786 |
|
| 1608 | 2787 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2788 |
(i asFloydSteinbergDitheredGrayFormOn:Display) inspect |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2789 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2790 |
|
| 841 | 2791 |
" |
| 1063 | 2792 |
|i| |
| 841 | 2793 |
|
2794 |
i := Image fromFile:'bitmaps/granite.tiff'. |
|
2795 |
(i asFloydSteinbergDitheredGrayFormOn:Display) inspect |
|
2796 |
" |
|
2797 |
||
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2798 |
"Created: 10.6.1996 / 14:11:39 / cg" |
| 1608 | 2799 |
"Modified: 17.4.1997 / 01:11:54 / cg" |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2800 |
! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2801 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2802 |
asFloydSteinbergDitheredGrayImageDepth:depth |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2803 |
"return a floyd-steinberg dithered image from the receiver image." |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2804 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2805 |
|ditheredBits| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2806 |
|
| 1623 | 2807 |
(depth == 1) ifTrue:[ |
| 1642 | 2808 |
^ self asFloydSteinbergDitheredMonochromeImage |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2809 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2810 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2811 |
ditheredBits := self floydSteinbergDitheredBitsDepth:depth. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2812 |
^ (self class implementorForDepth:depth) |
| 1642 | 2813 |
width:width height:height fromArray:ditheredBits |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2814 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2815 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2816 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2817 |
|
| 1608 | 2818 |
i := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2819 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2820 |
(i asFloydSteinbergDitheredGrayImageDepth:1) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2821 |
(i asFloydSteinbergDitheredGrayImageDepth:2) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2822 |
(i asFloydSteinbergDitheredGrayImageDepth:4) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2823 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2824 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2825 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2826 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2827 |
|
| 829 | 2828 |
i := Depth24Image width:4 height:1 |
| 1642 | 2829 |
fromArray:#[ |
2830 |
16rFF 16r00 16r00 16rFF 16r00 16r00 16rFF 16r00 16r00 16rFF 16r00 16r00 |
|
2831 |
16rFF 16r00 16r00 16rFF 16r00 16r00 16rFF 16r00 16r00 16rFF 16r00 16r00 |
|
2832 |
16rFF 16r00 16r00 16rFF 16r00 16r00 16rFF 16r00 16r00 16rFF 16r00 16r00 |
|
2833 |
16rFF 16r00 16r00 16rFF 16r00 16r00 16rFF 16r00 16r00 16rFF 16r00 16r00]. |
|
| 829 | 2834 |
i := i magnifiedBy:4@1. |
2835 |
i inspect. |
|
2836 |
||
2837 |
(i asFloydSteinbergDitheredGrayImageDepth:1) inspect. |
|
2838 |
(i asFloydSteinbergDitheredGrayImageDepth:2) inspect. |
|
2839 |
(i asFloydSteinbergDitheredGrayImageDepth:4) inspect. |
|
2840 |
" |
|
2841 |
||
2842 |
" |
|
2843 |
|i| |
|
2844 |
||
2845 |
i := Depth24Image width:4 height:6 |
|
| 1642 | 2846 |
fromArray:#[ |
2847 |
16r00 16r00 16r00 16r00 16r00 16r80 16r00 16r00 16rff 16r00 16r80 16r00 |
|
2848 |
16r00 16r80 16r80 16r00 16rFF 16r00 16r00 16rFF 16r80 16r00 16rFF 16rFF |
|
2849 |
16r80 16r00 16r00 16r80 16r00 16r80 16r80 16r00 16rff 16r80 16r80 16r00 |
|
2850 |
16r80 16r80 16r80 16r80 16rFF 16r00 16r80 16rFF 16r80 16r80 16rFF 16rFF |
|
2851 |
16rFF 16r00 16r00 16rFF 16r00 16r80 16rFF 16r00 16rff 16rFF 16r80 16r00 |
|
2852 |
16rFF 16r80 16r80 16rFF 16rFF 16r00 16rFF 16rFF 16r80 16rFF 16rFF 16rFF]. |
|
| 829 | 2853 |
i := i magnifiedBy:30. |
2854 |
i inspect. |
|
2855 |
||
2856 |
(i asFloydSteinbergDitheredGrayImageDepth:1) inspect. |
|
2857 |
(i asFloydSteinbergDitheredGrayImageDepth:2) inspect. |
|
2858 |
(i asFloydSteinbergDitheredGrayImageDepth:4) inspect. |
|
2859 |
" |
|
2860 |
" |
|
2861 |
|i| |
|
2862 |
||
2863 |
i := Image fromFile:'granite.tiff'. |
|
2864 |
i inspect. |
|
2865 |
(i asFloydSteinbergDitheredGrayImageDepth:1) inspect. |
|
2866 |
(i asFloydSteinbergDitheredGrayImageDepth:2) inspect. |
|
2867 |
(i asFloydSteinbergDitheredGrayImageDepth:4) inspect. |
|
2868 |
" |
|
2869 |
||
2870 |
" |
|
2871 |
|i| |
|
2872 |
||
| 1608 | 2873 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2874 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2875 |
(i asFloydSteinbergDitheredGrayImageDepth:1) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2876 |
(i asFloydSteinbergDitheredGrayImageDepth:2) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2877 |
(i asFloydSteinbergDitheredGrayImageDepth:4) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2878 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2879 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2880 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2881 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2882 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2883 |
i := Depth4Image |
| 1642 | 2884 |
width:4 |
2885 |
height:4 |
|
2886 |
fromArray:#[ |
|
2887 |
16r01 16r23 |
|
2888 |
16r45 16r67 |
|
2889 |
16r89 16rab |
|
2890 |
16rcd 16ref |
|
2891 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2892 |
i := i magnifiedBy:30. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2893 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2894 |
(i asFloydSteinbergDitheredGrayImageDepth:1) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2895 |
(i asFloydSteinbergDitheredGrayImageDepth:2) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2896 |
(i asFloydSteinbergDitheredGrayImageDepth:4) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2897 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2898 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2899 |
"Created: 10.6.1996 / 12:33:47 / cg" |
| 1608 | 2900 |
"Modified: 17.4.1997 / 01:13:55 / cg" |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2901 |
! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2902 |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2903 |
asFloydSteinbergDitheredMonochromeFormOn:aDevice |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2904 |
"return a dithered moncohrome form from the receiver image." |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2905 |
|
| 1063 | 2906 |
|monoBits| |
| 816 | 2907 |
|
2908 |
monoBits := self floydSteinbergDitheredMonochromeBits. |
|
2909 |
^ self makeDeviceMonochromeBitmapOn:aDevice fromArray:monoBits |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2910 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2911 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2912 |
|i f| |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2913 |
|
| 1608 | 2914 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2915 |
(i asFloydSteinbergDitheredMonochromeFormOn:Display) inspect. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2916 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2917 |
|
| 816 | 2918 |
" |
2919 |
|i f| |
|
2920 |
||
2921 |
i := Depth2Image width:8 height:8 |
|
| 1642 | 2922 |
fromArray:#[ |
2923 |
4r0000 4r0000 |
|
2924 |
4r0000 4r0000 |
|
2925 |
4r1111 4r1111 |
|
2926 |
4r1111 4r1111 |
|
2927 |
4r2222 4r2222 |
|
2928 |
4r2222 4r2222 |
|
2929 |
4r3333 4r3333 |
|
2930 |
4r3333 4r3333 |
|
2931 |
]. |
|
| 816 | 2932 |
(i asFloydSteinbergDitheredMonochromeFormOn:Display) inspect. |
2933 |
" |
|
2934 |
||
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2935 |
"Created: 10.6.1996 / 14:11:39 / cg" |
| 1608 | 2936 |
"Modified: 17.4.1997 / 01:14:02 / cg" |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2937 |
! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2938 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2939 |
asFloydSteinbergDitheredMonochromeImage |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2940 |
"return a floyd-steinberg dithered monochrome image from the receiver image." |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2941 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2942 |
|monoBits| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2943 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2944 |
monoBits := self floydSteinbergDitheredMonochromeBits. |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
2945 |
^ Depth1Image width:width height:height fromArray:monoBits |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2946 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2947 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2948 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2949 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2950 |
i := Image fromFile:'garfield.gif'. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2951 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2952 |
i asFloydSteinbergDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2953 |
i asBurkesDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2954 |
i asOrderedDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2955 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2956 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2957 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2958 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2959 |
|
| 1608 | 2960 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2961 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2962 |
i asFloydSteinbergDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2963 |
i asBurkesDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2964 |
i asOrderedDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2965 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2966 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2967 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2968 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2969 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2970 |
i := Depth4Image |
| 1642 | 2971 |
width:4 |
2972 |
height:4 |
|
2973 |
fromArray:#[ |
|
2974 |
16r01 16r23 |
|
2975 |
16r45 16r67 |
|
2976 |
16r89 16rab |
|
2977 |
16rcd 16ref |
|
2978 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2979 |
i := i magnifiedBy:30. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2980 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2981 |
i asFloydSteinbergDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2982 |
i asBurkesDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2983 |
i asOrderedDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2984 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2985 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2986 |
"Created: 10.6.1996 / 12:33:47 / cg" |
| 1608 | 2987 |
"Modified: 17.4.1997 / 01:15:28 / cg" |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2988 |
! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
2989 |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
2990 |
asFloydSteinbergDitheredPseudoFormUsing:colors on:aDevice |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
2991 |
"return a floyd-steinberg dithered pseudoForm from the picture, |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
2992 |
using colors in colors for dithering." |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
2993 |
|
| 1041 | 2994 |
|pseudoBits pseudoBits8 f has8BitImage deviceDepth |
2995 |
map d | |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
2996 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
2997 |
deviceDepth := aDevice depth. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
2998 |
deviceDepth == 8 ifTrue:[ |
| 1642 | 2999 |
has8BitImage := true. |
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3000 |
] ifFalse:[ |
| 1642 | 3001 |
has8BitImage := false. |
3002 |
aDevice supportedImageFormats do:[:fmt | |
|
3003 |
(fmt at:#bitsPerPixel) == 8 ifTrue:[ |
|
3004 |
has8BitImage := true. |
|
3005 |
] |
|
3006 |
] |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3007 |
]. |
| 1041 | 3008 |
has8BitImage ifFalse:[ |
| 1642 | 3009 |
deviceDepth == 4 ifFalse:[^ nil]. |
3010 |
||
3011 |
pseudoBits8 := self nfloydSteinbergDitheredDepth8BitsColors:colors. |
|
3012 |
pseudoBits8 isNil ifTrue:[^ nil]. |
|
3013 |
"/ convert to devices depth |
|
3014 |
||
3015 |
pseudoBits := ByteArray new:(width*4+7//8 * height). |
|
3016 |
pseudoBits8 compressPixels:4 width:width height:height into:pseudoBits mapping:nil. |
|
3017 |
d := 4. |
|
| 1041 | 3018 |
] ifTrue:[ |
| 1642 | 3019 |
pseudoBits := self nfloydSteinbergDitheredDepth8BitsColors:colors. |
3020 |
pseudoBits isNil ifTrue:[^ nil]. |
|
3021 |
d := 8. |
|
| 1041 | 3022 |
]. |
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3023 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3024 |
f := Form width:width height:height depth:deviceDepth on:aDevice. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3025 |
f isNil ifTrue:[^ nil]. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3026 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3027 |
"/ |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3028 |
"/ have to create a funny colorMap, where |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3029 |
"/ color at:index == color colorId:index |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3030 |
"/ |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3031 |
map := Array new:256 withAll:0. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3032 |
colors do:[:clr | |
| 1642 | 3033 |
clr notNil ifTrue:[ |
3034 |
map at:clr colorId + 1 put:clr |
|
3035 |
] |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3036 |
]. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3037 |
f colorMap:map. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3038 |
f initGC. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3039 |
f bits:pseudoBits. |
| 1041 | 3040 |
aDevice drawBits:pseudoBits bitsPerPixel:d depth:deviceDepth |
| 1642 | 3041 |
width:width height:height |
3042 |
x:0 y:0 |
|
3043 |
into:(f id) x:0 y:0 |
|
3044 |
width:width height:height with:(f gcId). |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3045 |
^ f |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3046 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3047 |
" |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3048 |
|i| |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3049 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3050 |
i := Image fromFile:'bitmaps/garfield.gif'. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3051 |
(i asFloydSteinbergDitheredPseudoFormUsing:(Smalltalk at:#'Color:DitherColors') on:Display) inspect |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3052 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3053 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3054 |
|i| |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3055 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3056 |
i := Image fromFile:'bitmaps/claus.gif'. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3057 |
(i asFloydSteinbergDitheredPseudoFormUsing:(Smalltalk at:#'Color:DitherColors') on:Display) inspect |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3058 |
" |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3059 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3060 |
"Created: 17.6.1996 / 12:13:35 / cg" |
| 1041 | 3061 |
"Modified: 5.9.1996 / 19:42:57 / cg" |
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3062 |
! |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
3063 |
|
| 0 | 3064 |
asFormOn:aDevice |
| 72 | 3065 |
"get a device form, with best possible approximation. |
3066 |
remember it in case someone asks again." |
|
3067 |
||
| 1041 | 3068 |
|form visual| |
| 72 | 3069 |
|
3070 |
((aDevice == device) and:[deviceForm notNil]) ifTrue:[^ deviceForm]. |
|
| 0 | 3071 |
|
| 901 | 3072 |
mask notNil ifTrue:[ |
| 1642 | 3073 |
mask := mask on:aDevice |
| 901 | 3074 |
]. |
3075 |
||
| 1623 | 3076 |
(aDevice depth == 1 |
3077 |
or:[aDevice hasGrayscales not]) ifTrue:[ |
|
| 1642 | 3078 |
^ self asMonochromeFormOn:aDevice |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3079 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3080 |
|
| 1041 | 3081 |
((visual := aDevice visualType) == #StaticGray) ifTrue:[ |
| 1642 | 3082 |
^ self asGrayFormOn:aDevice |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3083 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3084 |
|
| 1041 | 3085 |
(visual == #PseudoColor |
3086 |
or:[visual == #StaticColor]) ifTrue:[ |
|
| 1642 | 3087 |
form := self asPseudoFormQuickOn:aDevice. |
3088 |
form notNil ifTrue:[ |
|
3089 |
^ form |
|
3090 |
]. |
|
| 873 | 3091 |
]. |
3092 |
||
| 0 | 3093 |
(photometric == #palette) ifTrue:[ |
| 1642 | 3094 |
form := self paletteImageAsFormOn:aDevice |
| 72 | 3095 |
] ifFalse:[ |
| 1642 | 3096 |
(photometric == #rgb) ifTrue:[ |
3097 |
form := self rgbImageAsFormOn:aDevice |
|
3098 |
] ifFalse:[ |
|
3099 |
form := self greyImageAsFormOn:aDevice |
|
3100 |
] |
|
| 0 | 3101 |
]. |
3102 |
||
| 72 | 3103 |
(device isNil or:[aDevice == device]) ifTrue:[ |
| 1642 | 3104 |
"remember this form in the receiver ..." |
3105 |
||
3106 |
form notNil ifTrue:[ |
|
3107 |
deviceForm := form. |
|
3108 |
device isNil ifTrue:[ |
|
3109 |
device := aDevice. |
|
3110 |
Lobby register:self |
|
3111 |
] ifFalse:[ |
|
3112 |
Lobby registerChange:self |
|
3113 |
]. |
|
3114 |
" |
|
3115 |
can save space, by not keeping the images data-bits |
|
3116 |
twice (here and in the device form) |
|
3117 |
" |
|
3118 |
form forgetBits |
|
3119 |
] |
|
| 0 | 3120 |
]. |
3121 |
||
| 72 | 3122 |
^ form |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3123 |
|
| 1041 | 3124 |
"Modified: 10.7.1996 / 21:55:44 / cg" |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3125 |
! |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3126 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3127 |
asGrayFormOn:aDevice |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3128 |
"get a gray device form" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3129 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3130 |
^ self asGrayFormOn:aDevice dither:DitherAlgorithm. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3131 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3132 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3133 |
|i| |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3134 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3135 |
i := Image fromFile:'bitmaps/claus.gif'. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3136 |
(i asGrayFormOn:Display) inspect. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3137 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3138 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3139 |
"Modified: 10.6.1996 / 17:39:30 / cg" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3140 |
"Created: 10.6.1996 / 18:44:42 / cg" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3141 |
! |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3142 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3143 |
asGrayFormOn:aDevice dither:aDitherAlgorithm |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3144 |
"get a greyscale device form, using aDitherAlgorithm." |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3145 |
|
| 1063 | 3146 |
|depth| |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3147 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3148 |
depth := aDevice depth. |
| 1623 | 3149 |
(depth == 1 |
3150 |
or:[aDevice hasGrayscales not]) ifTrue:[ |
|
| 1642 | 3151 |
^ self asMonochromeFormOn:aDevice |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3152 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3153 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3154 |
(aDitherAlgorithm isNil |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3155 |
or:[aDitherAlgorithm == #threshold]) ifTrue:[ |
| 1642 | 3156 |
^ self asThresholdGrayFormOn:aDevice |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3157 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3158 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3159 |
(aDitherAlgorithm == #pattern |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3160 |
or:[aDitherAlgorithm == #ordered]) ifTrue:[ |
| 1642 | 3161 |
^ self asOrderedDitheredGrayFormOn:aDevice |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3162 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3163 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3164 |
^ self asFloydSteinbergDitheredGrayFormOn:aDevice. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3165 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3166 |
"Created: 10.6.1996 / 18:42:01 / cg" |
| 852 | 3167 |
"Modified: 14.6.1996 / 15:17:28 / cg" |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3168 |
! |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3169 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3170 |
asGrayImageDepth:depth |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3171 |
"get a gray image from the receiver" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3172 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3173 |
^ self asGrayImageDepth:depth dither:DitherAlgorithm. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3174 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3175 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3176 |
|i| |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3177 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3178 |
i := Image fromFile:'bitmaps/claus.gif'. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3179 |
(i asGrayFormOn:Display) inspect. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3180 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3181 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3182 |
"Modified: 10.6.1996 / 17:39:30 / cg" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3183 |
"Created: 10.6.1996 / 19:07:08 / cg" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3184 |
! |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3185 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3186 |
asGrayImageDepth:depth dither:aDitherAlgorithm |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3187 |
"get a greyscale image, using aDitherAlgorithm." |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3188 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3189 |
(aDitherAlgorithm isNil |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3190 |
or:[aDitherAlgorithm == #threshold]) ifTrue:[ |
| 1642 | 3191 |
^ self asThresholdGrayImageDepth:depth |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3192 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3193 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3194 |
(aDitherAlgorithm == #pattern |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3195 |
or:[aDitherAlgorithm == #ordered]) ifTrue:[ |
| 1642 | 3196 |
^ self asOrderedDitheredGrayImageDepth:depth |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3197 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3198 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3199 |
^ self asFloydSteinbergDitheredGrayImageDepth:depth |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3200 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3201 |
"Created: 10.6.1996 / 19:08:21 / cg" |
| 0 | 3202 |
! |
3203 |
||
3204 |
asMonochromeFormOn:aDevice |
|
3205 |
"get a monochrome device form" |
|
3206 |
||
| 72 | 3207 |
|form| |
3208 |
||
3209 |
((aDevice == device) and:[monoDeviceForm notNil]) ifTrue:[^ monoDeviceForm]. |
|
3210 |
||
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3211 |
form := self asMonochromeFormOn:aDevice dither:DitherAlgorithm. |
| 0 | 3212 |
|
| 72 | 3213 |
(device isNil or:[aDevice == device]) ifTrue:[ |
| 1642 | 3214 |
"remember this form in the receiver ..." |
3215 |
||
3216 |
form notNil ifTrue:[ |
|
3217 |
monoDeviceForm := form. |
|
3218 |
device isNil ifTrue:[ |
|
3219 |
device := aDevice. |
|
3220 |
Lobby register:self |
|
3221 |
] ifFalse:[ |
|
3222 |
Lobby registerChange:self |
|
3223 |
]. |
|
3224 |
" |
|
3225 |
can save space, by not keeping the images data-bits |
|
3226 |
twice (here and in the device form) |
|
3227 |
" |
|
3228 |
form forgetBits |
|
3229 |
] |
|
| 0 | 3230 |
]. |
3231 |
||
| 72 | 3232 |
^ form |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3233 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3234 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3235 |
|i| |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3236 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3237 |
i := Image fromFile:'bitmaps/claus.gif'. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3238 |
(i asMonochromeFormOn:Display) inspect. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3239 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3240 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3241 |
"Modified: 10.6.1996 / 17:39:30 / cg" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3242 |
! |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3243 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3244 |
asMonochromeFormOn:aDevice dither:aDitherAlgorithm |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3245 |
"get a monochrome device form, using aDitherAlgorithm." |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3246 |
|
| 1063 | 3247 |
|monoBits| |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3248 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3249 |
(aDitherAlgorithm isNil |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3250 |
or:[aDitherAlgorithm == #threshold]) ifTrue:[ |
| 1642 | 3251 |
^ self asThresholdMonochromeFormOn:aDevice |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3252 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3253 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3254 |
aDitherAlgorithm == #burkes ifTrue:[ |
| 1642 | 3255 |
monoBits := self burkesDitheredMonochromeBits. |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3256 |
] ifFalse:[ |
| 1642 | 3257 |
aDitherAlgorithm == #stevensonArce ifTrue:[ |
3258 |
monoBits := self stevensonArceDitheredMonochromeBits. |
|
3259 |
] ifFalse:[ |
|
3260 |
(aDitherAlgorithm == #pattern |
|
3261 |
or:[aDitherAlgorithm == #ordered]) ifTrue:[ |
|
3262 |
^ self asOrderedDitheredGrayFormOn:aDevice. |
|
3263 |
] ifFalse:[ |
|
3264 |
^ self asFloydSteinbergDitheredMonochromeFormOn:aDevice. |
|
3265 |
] |
|
3266 |
] |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3267 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3268 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3269 |
"/ |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3270 |
"/ make its pixel interpretation correct for the device |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3271 |
"/ |
| 816 | 3272 |
^ self makeDeviceMonochromeBitmapOn:aDevice fromArray:monoBits |
3273 |
||
3274 |
"Modified: 10.6.1996 / 20:18:05 / cg" |
|
| 89 | 3275 |
! |
3276 |
||
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3277 |
asNearestPaintDepth8FormOn:aDevice colors:fixColors nRed:nRed nGreen:nGreen nBlue:nBlue |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3278 |
"return a nearest paint pseudoForm from the palette picture. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3279 |
Use the colors in the fixColors array, which must be fixR x fixG x fixB |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3280 |
colors assigned to aDevice, such as the preallocated colors of the |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3281 |
Color class. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3282 |
By passing the ditherColors as extra array, this method can |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3283 |
also be used to dither an 8bit image into a smaller number of colors, |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3284 |
for example to create dithered Depth4Images from Depth8Images." |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3285 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3286 |
|pseudoBits f has8BitImage deviceDepth |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3287 |
map | |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3288 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3289 |
deviceDepth := aDevice depth. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3290 |
deviceDepth == 8 ifTrue:[ |
| 1642 | 3291 |
has8BitImage := true. |
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3292 |
] ifFalse:[ |
| 1642 | 3293 |
has8BitImage := false. |
3294 |
aDevice supportedImageFormats do:[:fmt | |
|
3295 |
(fmt at:#bitsPerPixel) == 8 ifTrue:[ |
|
3296 |
has8BitImage := true. |
|
3297 |
] |
|
3298 |
] |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3299 |
]. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3300 |
has8BitImage ifFalse:[^ nil]. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3301 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3302 |
pseudoBits := self nearestPaintDepth8BitsColors:fixColors nRed:nRed nGreen:nGreen nBlue:nBlue. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3303 |
pseudoBits isNil ifTrue:[^ nil]. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3304 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3305 |
f := Form width:width height:height depth:deviceDepth on:aDevice. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3306 |
f isNil ifTrue:[^ nil]. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3307 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3308 |
"/ |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3309 |
"/ have to create a funny colorMap, where |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3310 |
"/ color at:index == color colorId:index |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3311 |
"/ |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3312 |
map := Array new:256. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3313 |
fixColors do:[:clr | |
| 1642 | 3314 |
map at:clr colorId + 1 put:clr |
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3315 |
]. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3316 |
f colorMap:map. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3317 |
f initGC. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3318 |
f bits:pseudoBits. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3319 |
aDevice drawBits:pseudoBits bitsPerPixel:8 depth:deviceDepth |
| 1642 | 3320 |
width:width height:height |
3321 |
x:0 y:0 |
|
3322 |
into:(f id) x:0 y:0 |
|
3323 |
width:width height:height with:(f gcId). |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3324 |
^ f |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3325 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3326 |
" |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3327 |
example: |
| 1642 | 3328 |
color reduction from Depth8 to Depth4 (dithering) can be done by: |
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3329 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3330 |
|img8 reducedImg8 img4 map form| |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3331 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3332 |
map := #( |
| 1642 | 3333 |
(0 0 0) |
3334 |
(0 0 100) |
|
3335 |
(0 50 0) |
|
3336 |
(0 50 100) |
|
3337 |
(0 100 0) |
|
3338 |
(0 100 100) |
|
3339 |
(100 0 0) |
|
3340 |
(100 0 100) |
|
3341 |
(100 50 0) |
|
3342 |
(100 50 100) |
|
3343 |
(100 100 0) |
|
3344 |
(100 100 100)) collect:[:rgb | (Color red:(rgb at:1) |
|
3345 |
green:(rgb at:2) |
|
3346 |
blue:(rgb at:3)) on:Display]. |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3347 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3348 |
img8 := Image fromFile:'bitmaps/claus.gif'. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3349 |
form := img8 asNearestPaintDepth8FormOn:Display |
| 1642 | 3350 |
colors:map |
3351 |
nRed:2 |
|
3352 |
nGreen:3 |
|
3353 |
nBlue:2. |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3354 |
img8 := Depth8Image fromForm:form. 'dithered version of original image'. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3355 |
img4 := Depth4Image fromImage:img8. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3356 |
" |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3357 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3358 |
"Created: 17.6.1996 / 18:47:46 / cg" |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3359 |
"Modified: 17.6.1996 / 18:52:47 / cg" |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3360 |
! |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
3361 |
|
| 808 | 3362 |
asOrderedDitheredGrayFormOn:aDevice |
3363 |
"return a dithered depth-x grey form from the receiver image. |
|
3364 |
Uses an 8x8 dithermatrix." |
|
3365 |
||
| 1063 | 3366 |
|depth bits| |
| 808 | 3367 |
|
3368 |
depth := aDevice depth. |
|
| 1623 | 3369 |
(depth == 1 |
3370 |
or:[aDevice hasGrayscales not]) ifTrue:[ |
|
| 1642 | 3371 |
"/ for monochrome, there is highly specialized |
3372 |
"/ monochrome dither code available |
|
3373 |
||
3374 |
^ self asOrderedDitheredMonochromeFormOn:aDevice |
|
| 808 | 3375 |
]. |
3376 |
||
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3377 |
bits := self |
| 1642 | 3378 |
orderedDitheredBitsWithDitherMatrix:(self class orderedDitherMatrixOfSize:8) |
3379 |
ditherWidth:8 |
|
3380 |
depth:depth. |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3381 |
|
| 816 | 3382 |
^ self makeDeviceGrayPixmapOn:aDevice depth:depth fromArray:bits |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3383 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3384 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3385 |
|i| |
| 808 | 3386 |
|
3387 |
i := Image fromFile:'bitmaps/claus.gif'. |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3388 |
(i asOrderedDitheredGrayFormOn:Display) inspect |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3389 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3390 |
|
| 816 | 3391 |
"Modified: 10.6.1996 / 20:10:07 / cg" |
| 808 | 3392 |
! |
3393 |
||
| 798 | 3394 |
asOrderedDitheredGrayImageDepth:depth |
3395 |
"return a dithered depth-x grey image from the receiver image. |
|
3396 |
Uses an 8x8 dithermatrix." |
|
3397 |
||
3398 |
|dither| |
|
3399 |
||
3400 |
dither := self class orderedDitherMatrixOfSize:8. |
|
3401 |
||
| 1623 | 3402 |
(depth == 1) ifTrue:[ |
| 1642 | 3403 |
"/ for monochrome, there is highly specialized |
3404 |
"/ monochrome dither code available |
|
3405 |
||
3406 |
^ Depth1Image |
|
3407 |
width:width |
|
3408 |
height:height |
|
3409 |
fromArray:( |
|
3410 |
self |
|
3411 |
orderedDitheredMonochromeBitsWithDitherMatrix:dither |
|
3412 |
ditherWidth:8) |
|
| 798 | 3413 |
]. |
3414 |
||
3415 |
^ (self class implementorForDepth:depth) |
|
| 1642 | 3416 |
width:width |
3417 |
height:height |
|
3418 |
fromArray:( |
|
3419 |
self |
|
3420 |
orderedDitheredBitsWithDitherMatrix:dither |
|
3421 |
ditherWidth:8 |
|
3422 |
depth:depth) |
|
| 798 | 3423 |
|
3424 |
" |
|
3425 |
|i i1 i2 i4 i8| |
|
3426 |
||
3427 |
i := Image fromFile:'bitmaps/claus.gif'. |
|
3428 |
i1 := i asOrderedDitheredGrayImageDepth:1. |
|
3429 |
i1 inspect. |
|
3430 |
||
3431 |
i2 := i asOrderedDitheredGrayImageDepth:2. |
|
3432 |
i2 inspect. |
|
3433 |
||
3434 |
i4 := i asOrderedDitheredGrayImageDepth:4. |
|
3435 |
i4 inspect. |
|
3436 |
||
3437 |
i8 := i asOrderedDitheredGrayImageDepth:8. |
|
3438 |
i8 inspect. |
|
3439 |
" |
|
3440 |
||
3441 |
" |
|
3442 |
|i i1 i2 i4 i8| |
|
3443 |
i := Image fromFile:'bitmaps/garfield.gif'. |
|
3444 |
i1 := i asOrderedDitheredGrayImageDepth:1. |
|
3445 |
i1 inspect. |
|
3446 |
||
3447 |
i2 := i asOrderedDitheredGrayImageDepth:2. |
|
3448 |
i2 inspect. |
|
3449 |
||
3450 |
i4 := i asOrderedDitheredGrayImageDepth:4. |
|
3451 |
i4 inspect. |
|
3452 |
||
3453 |
i8 := i asOrderedDitheredGrayImageDepth:8. |
|
3454 |
i8 inspect. |
|
| 800 | 3455 |
|
3456 |
i2 := i8 asOrderedDitheredGrayImageDepth:2. |
|
3457 |
i2 inspect. |
|
| 798 | 3458 |
" |
3459 |
||
3460 |
"Created: 7.6.1996 / 18:03:54 / cg" |
|
| 800 | 3461 |
"Modified: 7.6.1996 / 19:41:59 / cg" |
| 798 | 3462 |
! |
3463 |
||
3464 |
asOrderedDitheredMonochromeFormOn:aDevice |
|
3465 |
"return a dithered monochrome form from the grey image. |
|
3466 |
Uses a 4x4 dithermatrix." |
|
3467 |
||
3468 |
"/ 4x4 seems a good comprimize between: |
|
3469 |
"/ number of grey levels (8x8 is better) |
|
3470 |
"/ artifacts (4x4 is better) |
|
3471 |
"/ |
|
3472 |
"/ could look at the image and decide upon the number of |
|
3473 |
"/ distinct colors present. Use 8x8 for high-number, |
|
3474 |
"/ 4x4 for small number of colors ... |
|
3475 |
||
3476 |
^ self |
|
| 1642 | 3477 |
asOrderedDitheredMonochromeFormOn:aDevice |
3478 |
ditherMatrix:(self class orderedDitherMatrixOfSize:4) |
|
3479 |
ditherWidth:4 |
|
| 798 | 3480 |
|
3481 |
"/ ^ self |
|
3482 |
"/ asOrderedDitheredMonochromeFormOn:aDevice |
|
3483 |
"/ ditherMatrix:(self class orderedDitherMatrixOfSize:8) |
|
3484 |
"/ ditherWidth:8 |
|
3485 |
||
3486 |
" |
|
3487 |
|i f| |
|
3488 |
||
| 1608 | 3489 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
| 798 | 3490 |
f := i asOrderedDitheredMonochromeFormOn:Display. |
3491 |
||
3492 |
||
3493 |
|i f| |
|
3494 |
||
| 1608 | 3495 |
i := (Image fromFile:'bitmaps/winBitmaps/a11.ico') magnifiedBy:10. |
| 798 | 3496 |
f := i asOrderedDitheredMonochromeFormOn:Display. |
3497 |
||
3498 |
||
3499 |
|i f| |
|
3500 |
||
| 1608 | 3501 |
i := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
| 798 | 3502 |
f := i asOrderedDitheredMonochromeFormOn:Display. |
3503 |
||
3504 |
||
3505 |
|i f| |
|
3506 |
||
3507 |
i := (Image fromFile:'bitmaps/PasteButton.tiff') magnifiedBy:10. |
|
3508 |
f := i asOrderedDitheredMonochromeFormOn:Display. |
|
3509 |
||
3510 |
||
3511 |
|i f| |
|
3512 |
||
3513 |
i := (Image fromFile:'bitmaps/blue-ball.gif') magnifiedBy:1. |
|
3514 |
f := i asOrderedDitheredMonochromeFormOn:Display. |
|
3515 |
" |
|
3516 |
||
3517 |
"Created: 7.6.1996 / 14:52:32 / cg" |
|
| 1608 | 3518 |
"Modified: 17.4.1997 / 01:10:10 / cg" |
| 798 | 3519 |
! |
3520 |
||
3521 |
asOrderedDitheredMonochromeFormOn:aDevice ditherMatrix:ditherMatrix ditherWidth:dW |
|
3522 |
"return a dithered monochrome form from the image. |
|
3523 |
Uses the passed ditherMatrix and ditherWidth." |
|
3524 |
||
| 1063 | 3525 |
|monoBits| |
| 798 | 3526 |
|
3527 |
monoBits := self orderedDitheredMonochromeBitsWithDitherMatrix:ditherMatrix ditherWidth:dW. |
|
| 816 | 3528 |
^ self makeDeviceMonochromeBitmapOn:aDevice fromArray:monoBits |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3529 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3530 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3531 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3532 |
|i| |
| 798 | 3533 |
|
| 1608 | 3534 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3535 |
(i asOrderedDitheredMonochromeFormOn:Display) inspect |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3536 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3537 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3538 |
|i| |
| 798 | 3539 |
|
3540 |
i := Image fromFile:'bitmaps/granite.tiff'. |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3541 |
(i asOrderedDitheredMonochromeFormOn:Display) inspect |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3542 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3543 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3544 |
|i| |
| 798 | 3545 |
|
3546 |
i := (Image fromFile:'bitmaps/PasteButton.tiff') magnifiedBy:10. |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3547 |
(i asOrderedDitheredMonochromeFormOn:Display) inspect |
| 798 | 3548 |
" |
3549 |
||
3550 |
"Created: 7.6.1996 / 14:51:42 / cg" |
|
| 1608 | 3551 |
"Modified: 17.4.1997 / 01:08:24 / cg" |
| 798 | 3552 |
! |
3553 |
||
3554 |
asOrderedDitheredMonochromeImage |
|
3555 |
"return a dithered monochrome image from the receiver image. |
|
3556 |
Uses a 4x4 dithermatrix." |
|
3557 |
||
3558 |
"/ 4x4 seems a good comprimize between: |
|
3559 |
"/ number of grey levels (8x8 is better) |
|
3560 |
"/ artifacts (4x4 is better) |
|
3561 |
"/ |
|
3562 |
"/ could look at the image and decide upon the number of |
|
3563 |
"/ distinct colors present. Use 8x8 for high-number, |
|
3564 |
"/ 4x4 for small number of colors ... |
|
3565 |
||
3566 |
^ self |
|
| 1642 | 3567 |
asOrderedDitheredMonochromeImageWithDitherMatrix:(self class orderedDitherMatrixOfSize:4) |
3568 |
ditherWidth:4 |
|
| 798 | 3569 |
|
3570 |
"/ ^ self |
|
3571 |
"/ asOrderedDitheredMonochromeImageWithDitherMatrix:(self class orderedDitherMatrixOfSize:8) |
|
3572 |
"/ ditherWidth:8 |
|
3573 |
||
3574 |
" |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3575 |
|i| |
| 798 | 3576 |
|
3577 |
i := Image fromFile:'bitmaps/claus.gif'. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3578 |
i asOrderedDitheredMonochromeImage inspect |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3579 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3580 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3581 |
|i| |
| 798 | 3582 |
|
3583 |
i := (Image fromFile:'/cdrom/icons/a/a11.ico') magnifiedBy:10. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3584 |
i asOrderedDitheredMonochromeImage inspect |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3585 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3586 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3587 |
|i| |
| 798 | 3588 |
|
3589 |
i := Image fromFile:'bitmaps/garfield.gif'. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3590 |
i asOrderedDitheredMonochromeImage inspect |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3591 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3592 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3593 |
|i| |
| 798 | 3594 |
|
3595 |
i := (Image fromFile:'bitmaps/PasteButton.tiff') magnifiedBy:10. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3596 |
i asOrderedDitheredMonochromeImage inspect |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3597 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3598 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3599 |
|i| |
| 798 | 3600 |
|
3601 |
i := (Image fromFile:'bitmaps/blue-ball.gif') magnifiedBy:1. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3602 |
i asOrderedDitheredMonochromeImage inspect |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3603 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3604 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3605 |
|i| |
| 798 | 3606 |
|
3607 |
i := Image fromFile:'bitmaps/granite.tiff'. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3608 |
i asOrderedDitheredMonochromeImage inspect |
| 798 | 3609 |
" |
3610 |
||
3611 |
"Created: 7.6.1996 / 15:02:07 / cg" |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3612 |
"Modified: 10.6.1996 / 11:15:09 / cg" |
| 798 | 3613 |
! |
3614 |
||
3615 |
asOrderedDitheredMonochromeImageWithDitherMatrix:ditherMatrix ditherWidth:dW |
|
3616 |
"return a dithered monochrome image from the receiver image. |
|
3617 |
Uses the passed ditherMatrix and ditherWidth." |
|
3618 |
||
3619 |
|monoBits| |
|
3620 |
||
3621 |
monoBits := self orderedDitheredMonochromeBitsWithDitherMatrix:ditherMatrix ditherWidth:dW. |
|
3622 |
^ (Depth1Image width:width height:height fromArray:monoBits) photometric:#blackIs0 |
|
3623 |
||
3624 |
"order-4 dither: |
|
3625 |
||
3626 |
|i| |
|
3627 |
||
3628 |
i := Image fromFile:'garfield.gif'. |
|
3629 |
i |
|
| 1642 | 3630 |
asOrderedDitheredMonochromeImageWithDitherMatrix:(Image orderedDitherMatrixOfSize:4) |
3631 |
ditherWidth:4 |
|
| 798 | 3632 |
" |
3633 |
||
3634 |
"order-6 dither: |
|
3635 |
||
3636 |
|i| |
|
3637 |
||
3638 |
i := Image fromFile:'garfield.gif'. |
|
3639 |
i |
|
| 1642 | 3640 |
asOrderedDitheredMonochromeImageWithDitherMatrix:(Image orderedDitherMatrixOfSize:8) |
3641 |
ditherWidth:8 |
|
| 798 | 3642 |
" |
3643 |
||
3644 |
||
3645 |
"thresholding at:0.5 (all above 0.5 becomes white): |
|
3646 |
||
3647 |
|i| |
|
3648 |
||
3649 |
i := Image fromFile:'garfield.gif'. |
|
3650 |
i |
|
| 1642 | 3651 |
asOrderedDitheredMonochromeImageWithDitherMatrix:(ByteArray new:16 withAll:8) |
3652 |
ditherWidth:4 |
|
| 798 | 3653 |
" |
3654 |
||
3655 |
"thresholding at: 0.25 (all above 0.25 becomes white): |
|
3656 |
||
3657 |
|i| |
|
3658 |
||
3659 |
i := Image fromFile:'garfield.gif'. |
|
3660 |
i |
|
| 1642 | 3661 |
asOrderedDitheredMonochromeImageWithDitherMatrix:(ByteArray new:16 withAll:3) |
3662 |
ditherWidth:4 |
|
| 798 | 3663 |
" |
3664 |
||
3665 |
"thresholding at: 0.75 (all above 0.75 becomes white): |
|
3666 |
||
3667 |
|i| |
|
3668 |
||
3669 |
i := Image fromFile:'garfield.gif'. |
|
3670 |
i |
|
| 1642 | 3671 |
asOrderedDitheredMonochromeImageWithDitherMatrix:(ByteArray new:16 withAll:11) |
3672 |
ditherWidth:4 |
|
| 798 | 3673 |
" |
3674 |
||
3675 |
"Modified: 7.6.1996 / 17:23:47 / cg" |
|
3676 |
! |
|
3677 |
||
| 873 | 3678 |
asPseudoFormQuickOn:aDevice |
3679 |
"return a pseudo-deviceForm from the image. |
|
| 878 | 3680 |
Fail if any color is not available (i.e. do not dither)." |
| 873 | 3681 |
|
| 1063 | 3682 |
|f d dDev temp temp8 bits clr cMap idMap |
| 878 | 3683 |
nClr "{ Class: SmallInteger }"
|
3684 |
usedColors | |
|
| 873 | 3685 |
|
3686 |
d := self depth. |
|
3687 |
(d == 1 |
|
3688 |
or:[d == 2 |
|
3689 |
or:[d == 4 |
|
3690 |
or:[d == 8]]]) ifFalse:[^ nil]. |
|
3691 |
||
3692 |
"/ |
|
3693 |
"/ see if all of the images colors are representable |
|
3694 |
"/ on the device |
|
3695 |
||
3696 |
bits := self bitsPerPixel. |
|
3697 |
nClr := (1 bitShift:bits). |
|
3698 |
cMap := Array new:nClr. |
|
3699 |
idMap := ByteArray new:nClr. |
|
3700 |
||
3701 |
photometric == #palette ifTrue:[ |
|
| 1642 | 3702 |
nClr := nClr min:(colorMap size) |
| 873 | 3703 |
]. |
3704 |
||
| 878 | 3705 |
d == 8 ifTrue:[ |
| 1642 | 3706 |
usedColors := bytes usedValues. "gets us an array filled with used values" |
3707 |
1 to:nClr do:[:pixel | |
|
3708 |
(usedColors includes:(pixel - 1)) ifFalse:[ |
|
3709 |
clr := Color black |
|
3710 |
] ifTrue:[ |
|
3711 |
clr := self colorFromValue:pixel-1. |
|
3712 |
clr := clr exactOn:aDevice. |
|
3713 |
clr isNil ifTrue:[^ nil]. |
|
3714 |
]. |
|
3715 |
cMap at:(pixel) put:clr. |
|
3716 |
idMap at:(pixel) put:(clr colorId). |
|
3717 |
]. |
|
| 878 | 3718 |
] ifFalse:[ |
| 1642 | 3719 |
1 to:nClr do:[:pixel | |
3720 |
clr := self colorFromValue:pixel-1. |
|
3721 |
clr := clr exactOn:aDevice. |
|
3722 |
clr isNil ifTrue:[^ nil]. |
|
3723 |
||
3724 |
cMap at:(pixel) put:clr. |
|
3725 |
idMap at:(pixel) put:(clr colorId). |
|
3726 |
]. |
|
| 873 | 3727 |
]. |
3728 |
||
3729 |
"/ got all colors; good - simply change depth & translate pixels |
|
3730 |
||
3731 |
dDev := aDevice depth. |
|
3732 |
||
3733 |
(d == 8 and:[dDev == 8]) ifTrue:[ |
|
| 1642 | 3734 |
"/ only translate |
3735 |
temp := ByteArray uninitializedNew:(width * height). |
|
3736 |
bytes expandPixels:8 "xlate only" |
|
3737 |
width:width |
|
3738 |
height:height |
|
3739 |
into:temp |
|
3740 |
mapping:idMap. |
|
| 873 | 3741 |
] ifFalse:[ |
3742 |
||
| 1642 | 3743 |
"/ stupid: expandPixels can only handle any-to-8 |
3744 |
"/ compressPixels can only handle 8-to-any |
|
3745 |
||
3746 |
d ~~ 8 ifTrue:[ |
|
3747 |
temp8 := ByteArray uninitializedNew:(width * height). |
|
3748 |
||
3749 |
bytes expandPixels:d |
|
3750 |
width:width |
|
3751 |
height:height |
|
3752 |
into:temp8 |
|
3753 |
mapping:idMap. |
|
3754 |
idMap := nil. |
|
3755 |
] ifFalse:[ |
|
3756 |
temp8 := bytes. |
|
3757 |
]. |
|
3758 |
||
3759 |
dDev ~~ 8 ifTrue:[ |
|
3760 |
temp := ByteArray uninitializedNew:((width * dDev + 7) // 8 * height). |
|
3761 |
||
3762 |
temp8 compressPixels:dDev |
|
3763 |
width:width |
|
3764 |
height:height |
|
3765 |
into:temp |
|
3766 |
mapping:idMap. |
|
3767 |
] ifFalse:[ |
|
3768 |
temp := temp8 |
|
3769 |
]. |
|
| 873 | 3770 |
]. |
3771 |
||
3772 |
f := Form width:width height:height depth:dDev on:aDevice. |
|
3773 |
f isNil ifTrue:[^ nil]. |
|
3774 |
||
3775 |
f colorMap:cMap. |
|
3776 |
f initGC. |
|
3777 |
||
3778 |
aDevice |
|
| 1642 | 3779 |
drawBits:temp |
3780 |
depth:dDev |
|
3781 |
width:width |
|
3782 |
height:height |
|
3783 |
x:0 y:0 |
|
3784 |
into:(f id) x:0 y:0 |
|
3785 |
width:width |
|
3786 |
height:height |
|
3787 |
with:(f gcId). |
|
| 873 | 3788 |
|
3789 |
^ f |
|
3790 |
||
3791 |
" |
|
3792 |
( |
|
| 1642 | 3793 |
(((Depth4Image |
3794 |
width:4 |
|
3795 |
height:4 |
|
3796 |
fromArray:#[ |
|
3797 |
16r01 16r23 |
|
3798 |
16r45 16r67 |
|
3799 |
16r89 16rab |
|
3800 |
16rcd 16ref |
|
3801 |
])) |
|
3802 |
magnifiedBy:30 |
|
3803 |
) |
|
3804 |
asPseudoFormQuickOn:Display |
|
| 873 | 3805 |
) inspect |
3806 |
" |
|
3807 |
||
| 878 | 3808 |
"Modified: 17.6.1996 / 17:31:49 / cg" |
| 873 | 3809 |
! |
3810 |
||
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3811 |
asStevensonArceDitheredMonochromeImage |
| 837 | 3812 |
"return a stevenson-arce dithered monochrome image from the receiver image. |
3813 |
Depending on the images contents, this may or may not look better than |
|
3814 |
a floyd-steinberg dithered image. |
|
3815 |
Notice, that floyd-steinberg dithering is faster; both because less |
|
3816 |
error diffusion is done and due to being specially tuned." |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3817 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3818 |
|monoBits| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3819 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3820 |
monoBits := self stevensonArceDitheredMonochromeBits. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3821 |
^ (Depth1Image width:width height:height fromArray:monoBits) photometric:#blackIs0 |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3822 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3823 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3824 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3825 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3826 |
i := Image fromFile:'garfield.gif'. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3827 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3828 |
i asFloydSteinbergDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3829 |
i asBurkesDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3830 |
i asStevensonArceDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3831 |
i asOrderedDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3832 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3833 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3834 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3835 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3836 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3837 |
i := Image fromFile:'claus.gif'. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3838 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3839 |
i asFloydSteinbergDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3840 |
i asBurkesDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3841 |
i asStevensonArceDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3842 |
i asOrderedDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3843 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3844 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3845 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3846 |
|i| |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3847 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3848 |
i := Depth4Image |
| 1642 | 3849 |
width:4 |
3850 |
height:4 |
|
3851 |
fromArray:#[ |
|
3852 |
16r01 16r23 |
|
3853 |
16r45 16r67 |
|
3854 |
16r89 16rab |
|
3855 |
16rcd 16ref |
|
3856 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3857 |
i := i magnifiedBy:30. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3858 |
i inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3859 |
i asStevensonArceDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3860 |
i asOrderedDitheredMonochromeImage inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3861 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3862 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3863 |
"Created: 10.6.1996 / 12:38:29 / cg" |
| 837 | 3864 |
"Modified: 12.6.1996 / 13:58:24 / cg" |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3865 |
! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3866 |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3867 |
asThresholdGrayFormOn:aDevice |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3868 |
"return a thresholded grey form from the receiver image." |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3869 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3870 |
|depth| |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3871 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3872 |
(depth := aDevice depth) == 1 ifTrue:[ |
| 1642 | 3873 |
^ self asThresholdMonochromeFormOn:aDevice |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3874 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3875 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3876 |
^ self |
| 1642 | 3877 |
makeDeviceGrayPixmapOn:aDevice |
3878 |
depth:depth |
|
3879 |
fromArray:(self |
|
3880 |
orderedDitheredBitsWithDitherMatrix:#[8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8] |
|
3881 |
ditherWidth:4 |
|
3882 |
depth:depth) |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3883 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3884 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3885 |
|i| |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3886 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3887 |
i := Image fromFile:'bitmaps/claus.gif'. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3888 |
(i asThresholdGrayFormOn:Display) inspect. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3889 |
" |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3890 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3891 |
"Created: 10.6.1996 / 18:38:31 / cg" |
| 816 | 3892 |
"Modified: 10.6.1996 / 20:10:26 / cg" |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3893 |
! |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3894 |
|
| 798 | 3895 |
asThresholdGrayImageDepth:depth |
3896 |
"return a thresholded depth-x grey image from the receiver image." |
|
3897 |
||
| 1623 | 3898 |
(depth == 1) ifTrue:[ |
| 1642 | 3899 |
"/ for monochrome, there is highly specialized |
3900 |
"/ monochrome dither code available |
|
3901 |
||
3902 |
^ Depth1Image |
|
3903 |
width:width |
|
3904 |
height:height |
|
3905 |
fromArray:( |
|
3906 |
self |
|
3907 |
orderedDitheredMonochromeBitsWithDitherMatrix:#[8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8] |
|
3908 |
ditherWidth:4) |
|
| 800 | 3909 |
]. |
3910 |
||
| 798 | 3911 |
^ (self class implementorForDepth:depth) |
| 1642 | 3912 |
width:width |
3913 |
height:height |
|
3914 |
fromArray:( |
|
3915 |
self |
|
3916 |
orderedDitheredBitsWithDitherMatrix:#[8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8] |
|
3917 |
ditherWidth:4 |
|
3918 |
depth:depth) |
|
| 798 | 3919 |
|
3920 |
" |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3921 |
|i| |
| 798 | 3922 |
|
3923 |
i := Image fromFile:'bitmaps/claus.gif'. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3924 |
(i asThresholdGrayImageDepth:1) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3925 |
(i asThresholdGrayImageDepth:2) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3926 |
(i asThresholdGrayImageDepth:4) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3927 |
(i asThresholdGrayImageDepth:8) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3928 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3929 |
(i asOrderedDitheredGrayImageDepth:1) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3930 |
(i asOrderedDitheredGrayImageDepth:2) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3931 |
(i asOrderedDitheredGrayImageDepth:4) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3932 |
(i asOrderedDitheredGrayImageDepth:8) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3933 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3934 |
(i asFloydSteinbergDitheredGrayImageDepth:1) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3935 |
(i asFloydSteinbergDitheredGrayImageDepth:2) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3936 |
(i asFloydSteinbergDitheredGrayImageDepth:4) inspect. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3937 |
(i asFloydSteinbergDitheredGrayImageDepth:8) inspect. |
| 798 | 3938 |
" |
3939 |
||
3940 |
"Created: 7.6.1996 / 18:13:33 / cg" |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
3941 |
"Modified: 10.6.1996 / 14:20:56 / cg" |
| 798 | 3942 |
! |
3943 |
||
3944 |
asThresholdMonochromeFormOn:aDevice |
|
3945 |
"return a threshold monochrome form from the image." |
|
3946 |
||
3947 |
^ self |
|
| 1642 | 3948 |
asOrderedDitheredMonochromeFormOn:aDevice |
3949 |
ditherMatrix:#[8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8] |
|
3950 |
ditherWidth:4 |
|
| 798 | 3951 |
|
3952 |
" |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3953 |
|i| |
| 798 | 3954 |
|
3955 |
i := Image fromFile:'bitmaps/claus.gif'. |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3956 |
i inspect. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3957 |
(i asThresholdMonochromeFormOn:Display) inspect |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3958 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3959 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3960 |
|i| |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3961 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3962 |
i := (Image fromFile:'bitmaps/a11.ico') magnifiedBy:10. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3963 |
i inspect. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3964 |
(i asThresholdMonochromeFormOn:Display) inspect |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3965 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3966 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3967 |
|i| |
| 798 | 3968 |
|
3969 |
i := Image fromFile:'bitmaps/granite.tiff'. |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3970 |
i inspect. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3971 |
(i asThresholdMonochromeFormOn:Display) inspect |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3972 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3973 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3974 |
|i| |
| 798 | 3975 |
|
3976 |
i := (Image fromFile:'bitmaps/PasteButton.tiff') magnifiedBy:10. |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3977 |
i inspect. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3978 |
(i asThresholdMonochromeFormOn:Display) inspect |
| 798 | 3979 |
" |
3980 |
||
3981 |
"Created: 7.6.1996 / 16:15:17 / cg" |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
3982 |
"Modified: 10.6.1996 / 17:44:29 / cg" |
| 798 | 3983 |
! |
3984 |
||
3985 |
asThresholdMonochromeImage |
|
3986 |
"return a threshold monochrome image from the image. |
|
3987 |
Threshold means: brightness < 0.5 -> black / otherwise white" |
|
3988 |
||
3989 |
^ self |
|
| 1642 | 3990 |
asOrderedDitheredMonochromeImageWithDitherMatrix:#[8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8] |
3991 |
ditherWidth:4 |
|
| 798 | 3992 |
|
3993 |
" |
|
3994 |
|i i2| |
|
3995 |
||
3996 |
i := Image fromFile:'bitmaps/claus.gif'. |
|
3997 |
i2 := i asThresholdMonochromeImage |
|
3998 |
||
3999 |
||
4000 |
|i i2| |
|
4001 |
||
4002 |
i := (Image fromFile:'/cdrom/icons/a/a11.ico') magnifiedBy:10. |
|
4003 |
i2 := i asThresholdMonochromeImage |
|
4004 |
||
4005 |
||
4006 |
|i i2| |
|
4007 |
||
4008 |
i := Image fromFile:'bitmaps/granite.tiff'. |
|
4009 |
i2 := i asThresholdMonochromeImage |
|
4010 |
||
4011 |
||
4012 |
|i i2| |
|
4013 |
||
4014 |
i := (Image fromFile:'bitmaps/PasteButton.tiff') magnifiedBy:10. |
|
4015 |
i2 := i asThresholdMonochromeImage |
|
4016 |
" |
|
4017 |
||
4018 |
"Created: 7.6.1996 / 16:15:17 / cg" |
|
4019 |
"Modified: 7.6.1996 / 17:16:10 / cg" |
|
4020 |
! |
|
4021 |
||
| 808 | 4022 |
asThresholdMonochromeImage:thresholdBrighness |
4023 |
"return a threshold monochrome image from the image. |
|
4024 |
The argument (0..1) gives the threshold value; |
|
4025 |
Threshold means: brightness < threshold -> black / otherwise white" |
|
4026 |
||
4027 |
|value ditherMatrix| |
|
4028 |
||
4029 |
value := thresholdBrighness * 255. |
|
4030 |
ditherMatrix := ByteArray new:256 withAll:(value truncated). |
|
4031 |
||
4032 |
^ self |
|
| 1642 | 4033 |
asOrderedDitheredMonochromeImageWithDitherMatrix:ditherMatrix |
4034 |
ditherWidth:16 |
|
| 808 | 4035 |
|
4036 |
" |
|
4037 |
|i| |
|
4038 |
||
4039 |
i := Image width:4 height:4 depth:4 |
|
| 1642 | 4040 |
fromArray:#[ 16r01 16r23 |
4041 |
16r45 16r67 |
|
4042 |
16r89 16rab |
|
4043 |
16rcd 16ref ]. |
|
| 808 | 4044 |
i := i magnifiedBy:30. |
4045 |
i inspect. |
|
4046 |
(i asThresholdMonochromeImage:0.125) inspect. |
|
4047 |
(i asThresholdMonochromeImage:0.25) inspect. |
|
4048 |
(i asThresholdMonochromeImage:0.5) inspect. |
|
4049 |
(i asThresholdMonochromeImage:0.75) inspect. |
|
4050 |
(i asThresholdMonochromeImage:1) inspect. |
|
4051 |
" |
|
4052 |
||
4053 |
" |
|
4054 |
|i| |
|
4055 |
||
4056 |
i := Image fromFile:'bitmaps/claus.gif'. |
|
4057 |
i inspect. |
|
4058 |
(i asThresholdMonochromeImage:0.125) inspect. |
|
4059 |
(i asThresholdMonochromeImage:0.25) inspect. |
|
4060 |
(i asThresholdMonochromeImage:0.5) inspect. |
|
4061 |
(i asThresholdMonochromeImage:0.625) inspect. |
|
4062 |
(i asThresholdMonochromeImage:0.75) inspect. |
|
4063 |
" |
|
4064 |
||
4065 |
"Created: 7.6.1996 / 16:15:17 / cg" |
|
4066 |
"Modified: 8.6.1996 / 14:51:57 / cg" |
|
4067 |
! |
|
4068 |
||
| 1591 | 4069 |
clearMaskedPixels |
4070 |
"assuming that I already have a device representation |
|
4071 |
in deviceForm, clear any masked pixels. |
|
4072 |
This will allow faster drawing in the future." |
|
4073 |
||
4074 |
maskedPixelsAre0 == true ifTrue:[^ self]. "/ already cleared |
|
4075 |
mask isNil ifTrue:[^ self]. "/ no mask |
|
4076 |
deviceForm isNil ifTrue:[^ self]. "/ no device rep. |
|
4077 |
mask depth ~~ 1 ifTrue:[^ self]. "/ not done with alpha masks |
|
4078 |
||
4079 |
deviceForm foreground:Color allColor background:Color noColor. |
|
4080 |
deviceForm function:#and. |
|
4081 |
deviceForm copyPlaneFrom:(mask asFormOn:device) x:0 y:0 toX:0 y:0 width:width height:height. |
|
4082 |
maskedPixelsAre0 := true. |
|
4083 |
||
4084 |
"Created: 12.4.1997 / 12:18:05 / cg" |
|
4085 |
"Modified: 12.4.1997 / 12:20:19 / cg" |
|
4086 |
! |
|
4087 |
||
| 283 | 4088 |
fromForm:aForm |
| 592 | 4089 |
"setup the receiver from a form" |
| 283 | 4090 |
|
4091 |
|map c0 c1| |
|
4092 |
||
4093 |
width := aForm width. |
|
4094 |
height := aForm height. |
|
4095 |
bitsPerSample := self bitsPerSample. |
|
4096 |
samplesPerPixel := self samplesPerPixel. |
|
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
4097 |
|
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
4098 |
aForm hasBits ifFalse:[ |
| 1642 | 4099 |
"/ must read the data from the device |
4100 |
self from:aForm in:(0@0 extent:aForm extent). |
|
4101 |
^ self |
|
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
4102 |
]. |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
4103 |
|
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
4104 |
"/ the form has all data available |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
4105 |
|
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
4106 |
bytes := aForm bits. |
| 283 | 4107 |
map := aForm colorMap. |
4108 |
||
4109 |
aForm depth == 1 ifTrue:[ |
|
| 1642 | 4110 |
map isNil ifTrue:[ |
4111 |
photometric := #whiteIs0 |
|
4112 |
] ifFalse:[ |
|
4113 |
c0 := map at:1. |
|
4114 |
c1 := map at:2. |
|
4115 |
((c0 = Color white) |
|
4116 |
and:[c1 = Color black]) ifTrue:[ |
|
4117 |
photometric := #whiteIs0 |
|
4118 |
] ifFalse:[ |
|
4119 |
((c0 = Color black) |
|
4120 |
and:[c1 = Color white]) ifTrue:[ |
|
4121 |
photometric := #blackIs0 |
|
4122 |
] ifFalse:[ |
|
4123 |
photometric := #palette. |
|
4124 |
colorMap := Array with:c0 with:c1. |
|
4125 |
] |
|
4126 |
] |
|
4127 |
] |
|
| 283 | 4128 |
] ifFalse:[ |
| 1642 | 4129 |
map notNil ifTrue:[ |
4130 |
photometric := #palette. |
|
4131 |
colorMap := map copy. |
|
4132 |
] ifFalse:[ |
|
4133 |
" |
|
4134 |
photometric stays at default |
|
4135 |
(which is rgb for d24, greyscale for others) |
|
4136 |
" |
|
4137 |
] |
|
| 283 | 4138 |
]. |
| 592 | 4139 |
|
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
4140 |
"Modified: 5.7.1996 / 16:24:31 / cg" |
| 283 | 4141 |
! |
4142 |
||
| 89 | 4143 |
fromImage:anImage |
4144 |
"setup the receiver from another image. |
|
4145 |
Color precision may be lost, if conversion is from a higher depth |
|
| 191 | 4146 |
image. |
4147 |
WARNING: |
|
4148 |
This implementation is a slow fallback (the loop over the |
|
| 89 | 4149 |
source pixels is very slow). If this method is used heavily, you |
4150 |
may want to redefine it in concrete subclasses for common source images." |
|
4151 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4152 |
|map clr rowPixels mappedRowPixels| |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4153 |
|
| 89 | 4154 |
width := anImage width. |
4155 |
height := anImage height. |
|
4156 |
bitsPerSample := self bitsPerSample. |
|
4157 |
samplesPerPixel := self samplesPerPixel. |
|
| 191 | 4158 |
self colormapFromImage:anImage. |
|
1374
ab515c0576c6
preserve mask when creating an image from another image.
Claus Gittinger <cg@exept.de>
parents:
1362
diff
changeset
|
4159 |
self mask:anImage mask. |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4160 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4161 |
self depth = anImage depth ifTrue:[ |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4162 |
bytes := anImage bits copy. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4163 |
^ self. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4164 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4165 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4166 |
bytes := ByteArray uninitializedNew:(self bytesPerRow * height). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4167 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4168 |
self depth >= anImage depth ifTrue:[ |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4169 |
anImage depth <= 12 ifTrue:[ |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4170 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4171 |
"/ if my depth is greater, all colors can be represented, |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4172 |
"/ and the loop can be done over pixel values ... |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4173 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4174 |
colorMap isNil ifTrue:[ |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4175 |
map := Array new:(1 bitShift:anImage depth). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4176 |
1 to:map size do:[:i | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4177 |
clr := anImage colorFromValue:(i - 1). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4178 |
map at:i put:(self valueFromColor:clr). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4179 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4180 |
mappedRowPixels := self pixelArraySpecies new:width. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4181 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4182 |
0 to:height-1 do:[:row | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4183 |
rowPixels := anImage rowAt:row into:mappedRowPixels startingAt:1. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4184 |
map notNil ifTrue:[ |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4185 |
1 to:width do:[:i | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4186 |
mappedRowPixels at:i put:(map at:(rowPixels at:i)+1) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4187 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4188 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4189 |
self rowAt:row putAll:mappedRowPixels |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4190 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4191 |
^ self |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4192 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4193 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4194 |
|
| 89 | 4195 |
anImage colorsFromX:0 y:0 toX:(width-1) y:(height-1) do:[:x :y :clr | |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4196 |
self atX:x y:y put:clr |
| 89 | 4197 |
]. |
4198 |
||
4199 |
" |
|
| 798 | 4200 |
|i i2 i4 i8 i16 i24| |
| 89 | 4201 |
|
4202 |
i := Image fromFile:'bitmaps/SBrowser.xbm'. |
|
4203 |
i inspect. |
|
4204 |
i2 := Depth2Image fromImage:i. |
|
4205 |
i2 inspect. |
|
4206 |
i4 := Depth4Image fromImage:i. |
|
4207 |
i4 inspect. |
|
4208 |
i8 := Depth8Image fromImage:i. |
|
4209 |
i8 inspect. |
|
4210 |
i24 := Depth24Image fromImage:i. |
|
4211 |
i24 inspect. |
|
4212 |
" |
|
| 191 | 4213 |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4214 |
" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4215 |
|i i24| |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4216 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4217 |
i := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4218 |
Transcript showCR:( |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4219 |
Time millisecondsToRun:[ |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4220 |
i24 := Depth24Image fromImage:i. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4221 |
] |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4222 |
). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4223 |
i24 inspect. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4224 |
" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4225 |
" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4226 |
|i i24| |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4227 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4228 |
i := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4229 |
MessageTally spyOn:[ |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4230 |
i24 := Depth24Image fromImage:i. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4231 |
] |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4232 |
" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4233 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4234 |
"Modified: 24.4.1997 / 15:40:25 / cg" |
| 191 | 4235 |
! |
4236 |
||
4237 |
fromSubImage:anImage in:aRectangle |
|
4238 |
"setup the receiver from another image, extracting a rectangular |
|
4239 |
area. Color precision may be lost, if conversion is from a higher depth |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4240 |
image. For palette & rgb images, this may fail if a color cannot be |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4241 |
represented. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4242 |
|
| 191 | 4243 |
WARNING: |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4244 |
This implementation is a slow fallback (the loop over the |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4245 |
source pixels is very slow). If this method is used heavily, you |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4246 |
may want to redefine it in concrete subclasses for the common case of |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4247 |
of creating a subImage with the same depth & palette." |
| 191 | 4248 |
|
4249 |
|x0 y0| |
|
4250 |
||
4251 |
width := aRectangle width + 1. |
|
4252 |
height := aRectangle height + 1. |
|
4253 |
bytes := ByteArray uninitializedNew:(self bytesPerRow * height). |
|
4254 |
bitsPerSample := self bitsPerSample. |
|
4255 |
samplesPerPixel := self samplesPerPixel. |
|
4256 |
self colormapFromImage:anImage. |
|
4257 |
x0 := aRectangle left. |
|
4258 |
y0 := aRectangle top. |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4259 |
|
| 191 | 4260 |
((photometric == anImage photometric) |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4261 |
and:[self bitsPerPixel = anImage bitsPerPixel |
| 191 | 4262 |
and:[colorMap = anImage colorMap]]) ifTrue:[ |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4263 |
"/ can do it by value |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4264 |
anImage valuesFromX:x0 y:y0 |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4265 |
toX:aRectangle right y:aRectangle bottom |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4266 |
do:[:x :y :pixelValue | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4267 |
self pixelAtX:x-x0 y:y-y0 put:pixelValue. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4268 |
] |
| 191 | 4269 |
] ifFalse:[ |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4270 |
"/ must do it by colors |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4271 |
anImage colorsFromX:x0 y:y0 |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4272 |
toX:aRectangle right y:aRectangle bottom |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4273 |
do:[:x :y :clr | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4274 |
self atX:x-x0 y:y-y0 putColor:clr. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4275 |
] |
| 191 | 4276 |
]. |
4277 |
||
4278 |
" |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4279 |
|i i2 i4 i8 i16 i24| |
| 191 | 4280 |
|
4281 |
i := Image fromFile:'bitmaps/garfield.gif'. |
|
4282 |
i inspect. |
|
4283 |
i4 := Depth4Image fromSubImage:i in:(300@160 corner:340@200). |
|
4284 |
i4 inspect. |
|
4285 |
i8 := Depth8Image fromSubImage:i in:(300@160 corner:340@200). |
|
4286 |
i8 inspect. |
|
4287 |
i24 := Depth24Image fromSubImage:i in:(300@160 corner:340@200). |
|
4288 |
i24 inspect. |
|
4289 |
" |
|
4290 |
||
4291 |
"Created: 20.9.1995 / 01:06:02 / claus" |
|
4292 |
"Modified: 20.9.1995 / 10:15:37 / claus" |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4293 |
"Modified: 24.4.1997 / 17:25:48 / cg" |
| 89 | 4294 |
! |
4295 |
||
| 283 | 4296 |
monochromeOn:aDevice |
4297 |
"return a monochrome device image of the receiver for aDevice. |
|
4298 |
(monochrome, even if device supports colors)" |
|
4299 |
||
4300 |
((aDevice == device) and:[monoDeviceForm notNil]) ifTrue:[^ self]. |
|
4301 |
(device notNil and:[aDevice ~~ device]) ifTrue:[ |
|
4302 |
"oops, I am already accociated to another device |
|
4303 |
- need a copy ... |
|
4304 |
" |
|
4305 |
^ self copy monochromeOn:aDevice |
|
4306 |
]. |
|
4307 |
monoDeviceForm := self asMonochromeFormOn:aDevice. |
|
4308 |
! |
|
4309 |
||
4310 |
on:aDevice |
|
4311 |
"return an image with the same pixels as the receiver, but |
|
4312 |
associated to aDevice. If the receiver is not yet bound to |
|
4313 |
a device, this will be the receiver. Otherwise, a new image |
|
4314 |
is returned." |
|
4315 |
||
4316 |
((aDevice == device) and:[deviceForm notNil]) ifTrue:[^ self]. |
|
| 852 | 4317 |
|
| 283 | 4318 |
(device notNil and:[aDevice ~~ device]) ifTrue:[ |
| 1642 | 4319 |
"oops, I am already accociated to another device |
4320 |
- need a copy ... |
|
4321 |
" |
|
4322 |
^ self copy on:aDevice |
|
| 283 | 4323 |
]. |
4324 |
deviceForm := self asFormOn:aDevice. |
|
|
1057
410f0fec2872
oops - must register Image after assigning a deviceForm
Claus Gittinger <cg@exept.de>
parents:
1051
diff
changeset
|
4325 |
device := aDevice. |
|
410f0fec2872
oops - must register Image after assigning a deviceForm
Claus Gittinger <cg@exept.de>
parents:
1051
diff
changeset
|
4326 |
Lobby register:self |
|
410f0fec2872
oops - must register Image after assigning a deviceForm
Claus Gittinger <cg@exept.de>
parents:
1051
diff
changeset
|
4327 |
|
|
410f0fec2872
oops - must register Image after assigning a deviceForm
Claus Gittinger <cg@exept.de>
parents:
1051
diff
changeset
|
4328 |
"Modified: 16.9.1996 / 21:02:33 / cg" |
|
1496
fc27b03282af
added #onDevice: for protocol completeness.
Claus Gittinger <cg@exept.de>
parents:
1488
diff
changeset
|
4329 |
! |
|
fc27b03282af
added #onDevice: for protocol completeness.
Claus Gittinger <cg@exept.de>
parents:
1488
diff
changeset
|
4330 |
|
|
fc27b03282af
added #onDevice: for protocol completeness.
Claus Gittinger <cg@exept.de>
parents:
1488
diff
changeset
|
4331 |
onDevice:aDevice |
|
fc27b03282af
added #onDevice: for protocol completeness.
Claus Gittinger <cg@exept.de>
parents:
1488
diff
changeset
|
4332 |
"return an image with the same pixels as the receiver, but |
|
fc27b03282af
added #onDevice: for protocol completeness.
Claus Gittinger <cg@exept.de>
parents:
1488
diff
changeset
|
4333 |
associated to aDevice. If the receiver is not yet bound to |
|
fc27b03282af
added #onDevice: for protocol completeness.
Claus Gittinger <cg@exept.de>
parents:
1488
diff
changeset
|
4334 |
a device, this will be the receiver. Otherwise, a new image |
|
fc27b03282af
added #onDevice: for protocol completeness.
Claus Gittinger <cg@exept.de>
parents:
1488
diff
changeset
|
4335 |
is returned." |
|
fc27b03282af
added #onDevice: for protocol completeness.
Claus Gittinger <cg@exept.de>
parents:
1488
diff
changeset
|
4336 |
|
|
fc27b03282af
added #onDevice: for protocol completeness.
Claus Gittinger <cg@exept.de>
parents:
1488
diff
changeset
|
4337 |
^ self on:aDevice |
|
fc27b03282af
added #onDevice: for protocol completeness.
Claus Gittinger <cg@exept.de>
parents:
1488
diff
changeset
|
4338 |
|
|
fc27b03282af
added #onDevice: for protocol completeness.
Claus Gittinger <cg@exept.de>
parents:
1488
diff
changeset
|
4339 |
"Created: 28.3.1997 / 16:05:53 / cg" |
| 283 | 4340 |
! ! |
4341 |
||
4342 |
!Image methodsFor:'converting greyscale images'! |
|
4343 |
||
4344 |
greyImageAsFormOn:aDevice |
|
4345 |
"return a thresholded grey-deviceForm from the grey image." |
|
4346 |
||
| 1063 | 4347 |
|pictureDepth nPlanes| |
| 283 | 4348 |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4349 |
|
| 283 | 4350 |
nPlanes := samplesPerPixel. |
4351 |
(nPlanes == 2) ifTrue:[ |
|
| 1642 | 4352 |
'Image [info]: alpha plane ignored' infoPrintCR. |
4353 |
nPlanes := 1 |
|
| 283 | 4354 |
]. |
4355 |
||
4356 |
pictureDepth := bitsPerSample at:1. |
|
4357 |
||
4358 |
"monochrome is very easy ..." |
|
4359 |
||
4360 |
(pictureDepth == 1) ifTrue:[ |
|
| 1642 | 4361 |
^ Form width:width height:height fromArray:bytes on:aDevice |
| 283 | 4362 |
]. |
4363 |
||
4364 |
(aDevice visualType == #TrueColor) ifTrue:[ |
|
| 1642 | 4365 |
^ self greyImageAsTrueColorFormOn:aDevice |
| 283 | 4366 |
]. |
4367 |
||
| 858 | 4368 |
"/ (aDevice visualType == #PseudoColor |
4369 |
"/ or:[aDevice visualType == #GrayScale |
|
4370 |
"/ or:[aDevice visualType == #StaticColor]]) ifTrue:[ |
|
4371 |
||
4372 |
"/ PseudoColor conversion also works for StaticColor, |
|
4373 |
"/ GrayScale and DirectColor; although possibly with suboptimal results |
|
4374 |
||
4375 |
^ self greyImageAsPseudoFormOn:aDevice |
|
4376 |
||
|
1175
5595569cfbd3
newStyle info & error messages
Claus Gittinger <cg@exept.de>
parents:
1170
diff
changeset
|
4377 |
"Modified: 10.1.1997 / 17:52:49 / cg" |
| 283 | 4378 |
! |
4379 |
||
4380 |
greyImageAsPseudoFormOn:aDevice |
|
4381 |
"return an 8-bit pseudo Form from the grey image" |
|
4382 |
||
4383 |
|wideBits pictureDepth f map |
|
4384 |
colorMap usedColors nUsed aColor |
|
4385 |
nColors "{ Class: SmallInteger }"
|
|
4386 |
range id| |
|
4387 |
||
4388 |
pictureDepth := bitsPerSample at:1. |
|
4389 |
||
4390 |
(#(2 4 8) includes:pictureDepth) ifFalse:[ |
|
| 1642 | 4391 |
self error:'currently only depth-2, 4 or 8 supported'. |
4392 |
^ nil |
|
| 283 | 4393 |
]. |
4394 |
||
4395 |
wideBits := ByteArray uninitializedNew:(width * height). |
|
4396 |
||
4397 |
(pictureDepth == 8) ifTrue:[ |
|
| 1642 | 4398 |
"for 8bits, we scan for used colors first; |
4399 |
to avoid allocating too many colors" |
|
4400 |
||
4401 |
usedColors := bytes usedValues. |
|
4402 |
nUsed := usedColors max + 1. |
|
4403 |
||
4404 |
colorMap := Array new:nUsed. |
|
4405 |
photometric == #blackIs0 ifTrue:[ |
|
4406 |
usedColors do:[:grey | |
|
4407 |
colorMap at:(grey + 1) put:(Color gray:(100.0 / 256.0 * grey)) |
|
4408 |
] |
|
4409 |
] ifFalse:[ |
|
4410 |
usedColors do:[:grey | |
|
4411 |
colorMap at:(grey + 1) put:(Color gray:(100 - (100.0 / 256.0 * grey))) |
|
4412 |
] |
|
4413 |
] |
|
| 89 | 4414 |
] ifFalse:[ |
| 1642 | 4415 |
nColors := (1 bitShift:pictureDepth). |
4416 |
colorMap := Array new:nColors. |
|
4417 |
range := 100 / (nColors - 1) asFloat. |
|
4418 |
photometric == #blackIs0 ifTrue:[ |
|
4419 |
1 to:nColors do:[:i | |
|
4420 |
colorMap at:i put:(Color gray:(i - 1) * range). |
|
4421 |
]. |
|
4422 |
] ifFalse:[ |
|
4423 |
1 to:nColors do:[:i | |
|
4424 |
colorMap at:(nColors - i + 1) put:(Color gray:(i - 1) * range). |
|
4425 |
]. |
|
4426 |
]. |
|
| 283 | 4427 |
]. |
4428 |
||
4429 |
"XXX should reduce 8->6->4->2 planes, if not all colors could be allocated" |
|
4430 |
||
4431 |
"setup the translation map" |
|
4432 |
map := ByteArray uninitializedNew:256. |
|
4433 |
nColors := colorMap size. |
|
4434 |
1 to:nColors do:[:i | |
|
| 1642 | 4435 |
aColor := colorMap at:i. |
4436 |
aColor notNil ifTrue:[ |
|
4437 |
aColor := aColor on:aDevice. |
|
4438 |
colorMap at:i put:aColor. |
|
4439 |
id := aColor colorId. |
|
4440 |
id notNil ifTrue:[ |
|
4441 |
map at:i put:id |
|
4442 |
] ifFalse:[ |
|
4443 |
map at:i put:0 |
|
4444 |
] |
|
4445 |
] |
|
| 89 | 4446 |
]. |
| 283 | 4447 |
|
4448 |
"expand & translate" |
|
4449 |
bytes expandPixels:pictureDepth |
|
| 1642 | 4450 |
width:width |
4451 |
height:height |
|
4452 |
into:wideBits |
|
4453 |
mapping:map. |
|
| 283 | 4454 |
|
4455 |
f := Form width:width height:height depth:8 on:aDevice. |
|
4456 |
f isNil ifTrue:[^ nil]. |
|
4457 |
f colorMap:colorMap. |
|
4458 |
f initGC. |
|
4459 |
aDevice drawBits:wideBits depth:8 width:width height:height |
|
| 1642 | 4460 |
x:0 y:0 |
4461 |
into:(f id) x:0 y:0 width:width height:height with:(f gcId). |
|
| 283 | 4462 |
^ f |
| 746 | 4463 |
|
4464 |
"Modified: 28.5.1996 / 20:55:57 / cg" |
|
| 0 | 4465 |
! |
4466 |
||
| 283 | 4467 |
greyImageAsTrueColorFormOn:aDevice |
4468 |
"return a true-color device-form for the grey-image receiver. |
|
4469 |
TODO: the pixel loops ought to be implemented as inline primitive code ..." |
|
4470 |
||
4471 |
|depth |
|
| 1143 | 4472 |
myDepth "{ Class: SmallInteger }"
|
4473 |
nColors "{ Class: SmallInteger }"
|
|
| 283 | 4474 |
colorValues |
| 1143 | 4475 |
scaleDown |
4476 |
scaleRed "{ Class: SmallInteger }"
|
|
4477 |
scaleGreen "{ Class: SmallInteger }"
|
|
4478 |
scaleBlue "{ Class: SmallInteger }"
|
|
4479 |
redShift "{ Class: SmallInteger }"
|
|
4480 |
blueShift "{ Class: SmallInteger }"
|
|
4481 |
greenShift "{ Class: SmallInteger }"
|
|
4482 |
form bestFormat usedDeviceDepth usedDeviceBitsPerPixel imageBits |
|
|
1175
5595569cfbd3
newStyle info & error messages
Claus Gittinger <cg@exept.de>
parents:
1170
diff
changeset
|
4483 |
greyValue "{ Class: SmallInteger }"
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4484 |
h "{ Class: SmallInteger }"
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4485 |
w "{ Class: SmallInteger }"
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4486 |
pixelArray newPixelArray i| |
| 283 | 4487 |
|
4488 |
"/ this is a slow fallback method; this ought to be |
|
4489 |
"/ redefined in DepthxImage for more performance. |
|
4490 |
||
4491 |
depth := aDevice depth. |
|
4492 |
myDepth := self depth. |
|
4493 |
myDepth > 12 ifTrue:[ |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4494 |
self error:'unsupported trueColor depth in greyImageAsTrueColorFormOn:'. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4495 |
^ nil |
| 0 | 4496 |
]. |
4497 |
||
| 283 | 4498 |
"/ compute scale to map from my pixels into devices range |
4499 |
||
4500 |
scaleDown := 1 bitShift:myDepth. |
|
4501 |
scaleRed := (1 bitShift:aDevice bitsRed). |
|
4502 |
scaleGreen := (1 bitShift:aDevice bitsGreen). |
|
4503 |
scaleBlue := (1 bitShift:aDevice bitsBlue). |
|
4504 |
redShift := aDevice shiftRed. |
|
4505 |
greenShift := aDevice shiftGreen. |
|
4506 |
blueShift := aDevice shiftBlue. |
|
4507 |
||
| 1143 | 4508 |
"/ prepare the map |
4509 |
||
| 283 | 4510 |
nColors := (1 bitShift:myDepth). |
4511 |
colorValues := Array new:nColors. |
|
4512 |
1 to:nColors do:[:i | |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4513 |
|v gv bv rv nv| |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4514 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4515 |
"/ scale down to 0..1 |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4516 |
v := (i-1) / scaleDown. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4517 |
rv := (v * scaleRed) truncated. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4518 |
gv := (v * scaleGreen) truncated. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4519 |
bv := (v * scaleBlue) truncated. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4520 |
nv := rv bitShift:redShift. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4521 |
nv := nv bitOr:(gv bitShift:greenShift). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4522 |
nv := nv bitOr:(bv bitShift:blueShift). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4523 |
colorValues at:i put:nv |
| 0 | 4524 |
]. |
| 283 | 4525 |
photometric == #whiteIs0 ifTrue:[ |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4526 |
"/ reverse the order; 0 is brightest |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4527 |
colorValues reverse |
| 283 | 4528 |
]. |
| 193 | 4529 |
|
4530 |
bestFormat := self bestSupportedImageFormatFor:aDevice. |
|
|
235
579f3f804a46
padding info in supportedFormats
Claus Gittinger <cg@exept.de>
parents:
230
diff
changeset
|
4531 |
usedDeviceDepth := bestFormat at:#depth. |
|
579f3f804a46
padding info in supportedFormats
Claus Gittinger <cg@exept.de>
parents:
230
diff
changeset
|
4532 |
usedDeviceBitsPerPixel := bestFormat at:#bitsPerPixel. |
| 193 | 4533 |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4534 |
"/ the temporary helper image is only needed to allow |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4535 |
"/ the rowAt:putAll: calls below. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4536 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4537 |
i := Image implementorForDepth:usedDeviceBitsPerPixel. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4538 |
i width:width. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4539 |
i height:height. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4540 |
imageBits := ByteArray new:(i bytesPerRow * height). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4541 |
i bits:imageBits. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4542 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4543 |
"/ now, walk over the image and replace |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4544 |
"/ colorMap indices by color values in the bits array |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4545 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4546 |
h := height - 1. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4547 |
w := width - 1. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4548 |
pixelArray := self pixelArraySpecies new:width. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4549 |
newPixelArray := i pixelArraySpecies new:width. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4550 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4551 |
0 to:h do:[:y | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4552 |
self rowAt:y into:pixelArray. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4553 |
0 to:w do:[:x | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4554 |
greyValue := pixelArray at:(x+1). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4555 |
newPixelArray at:(x+1) put:(colorValues at:greyValue + 1). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4556 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4557 |
i rowAt:y putAll:newPixelArray. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4558 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4559 |
|
| 193 | 4560 |
form := Form width:width height:height depth:usedDeviceDepth on:aDevice. |
| 283 | 4561 |
form isNil ifTrue:[^ nil]. |
| 193 | 4562 |
form initGC. |
4563 |
||
4564 |
form |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4565 |
copyBitsFrom:imageBits bitsPerPixel:usedDeviceBitsPerPixel depth:usedDeviceDepth |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4566 |
width:width height:height |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4567 |
x:0 y:0 toX:0 y:0. |
| 193 | 4568 |
|
4569 |
^ form |
|
4570 |
||
| 283 | 4571 |
"Created: 20.10.1995 / 22:05:10 / cg" |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4572 |
"Modified: 24.4.1997 / 16:52:32 / cg" |
| 0 | 4573 |
! ! |
4574 |
||
4575 |
!Image methodsFor:'converting palette images'! |
|
4576 |
||
4577 |
paletteImageAsFormOn:aDevice |
|
| 72 | 4578 |
"return a device-form for the palette-image receiver" |
4579 |
||
| 380 | 4580 |
|type ddepth| |
| 193 | 4581 |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4582 |
ddepth := aDevice depth. |
| 379 | 4583 |
|
| 1623 | 4584 |
aDevice hasGrayscales not ifTrue:[ |
4585 |
^ self asMonochromeFormOn:aDevice |
|
4586 |
]. |
|
4587 |
||
| 193 | 4588 |
((type := aDevice visualType) == #StaticGray) ifTrue:[ |
| 1642 | 4589 |
ddepth == 8 ifTrue:[ |
4590 |
^ self paletteImageAsGray8FormOn:aDevice |
|
4591 |
]. |
|
4592 |
^ self asGrayFormOn:aDevice |
|
| 0 | 4593 |
]. |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
4594 |
|
| 193 | 4595 |
(type == #TrueColor) ifTrue:[ |
| 1642 | 4596 |
DitherAlgorithm == #floydSteinberg ifTrue:[ |
4597 |
ddepth == 8 ifTrue:[ |
|
4598 |
self depth == 8 ifTrue:[ |
|
4599 |
"/ use fixColor dither algorithm |
|
4600 |
^ self asDitheredTrueColor8FormOn:aDevice |
|
4601 |
] |
|
4602 |
] |
|
4603 |
]. |
|
4604 |
||
4605 |
^ self paletteImageAsTrueColorFormOn:aDevice |
|
| 193 | 4606 |
]. |
| 858 | 4607 |
|
4608 |
"/ the PseudoColor conversion also works for |
|
4609 |
"/ StaticColor, GrayScale & DirectColor; although possibly with suboptimal results |
|
4610 |
||
4611 |
^ self paletteImageAsPseudoFormOn:aDevice |
|
4612 |
||
4613 |
"Modified: 14.6.1996 / 19:31:01 / cg" |
|
| 0 | 4614 |
! |
4615 |
||
4616 |
paletteImageAsPseudoFormOn:aDevice |
|
| 72 | 4617 |
"return a pseudo-deviceForm from the palette image." |
| 0 | 4618 |
|
| 89 | 4619 |
|tempImage d temp8| |
4620 |
||
4621 |
d := self depth. |
|
4622 |
(#(1 2 4 8) includes:d) ifTrue:[ |
|
4623 |
" |
|
4624 |
fallback code for some depth's: |
|
4625 |
create a temporary Depth8Image and use its conversion method |
|
4626 |
" |
|
4627 |
temp8 := ByteArray uninitializedNew:(width * height). |
|
4628 |
||
4629 |
bytes expandPixels:d |
|
4630 |
width:width |
|
4631 |
height:height |
|
4632 |
into:temp8 |
|
4633 |
mapping:nil. |
|
4634 |
||
4635 |
tempImage := Image width:width height:height depth:8 fromArray:temp8. |
|
4636 |
tempImage colorMap:colorMap. |
|
4637 |
^ tempImage paletteImageAsPseudoFormOn:aDevice |
|
4638 |
]. |
|
| 2 | 4639 |
^ self subclassResponsibility |
| 0 | 4640 |
! |
4641 |
||
| 193 | 4642 |
paletteImageAsTrueColorFormOn:aDevice |
4643 |
"return a true-color device-form for the palette-image receiver." |
|
4644 |
||
| 209 | 4645 |
|depth |
4646 |
nColors "{ Class: SmallInteger }"
|
|
|
1605
64151392ff64
added generic #paletteImageAsTrueColorForm implementation
Claus Gittinger <cg@exept.de>
parents:
1595
diff
changeset
|
4647 |
w "{ Class: SmallInteger }"
|
|
64151392ff64
added generic #paletteImageAsTrueColorForm implementation
Claus Gittinger <cg@exept.de>
parents:
1595
diff
changeset
|
4648 |
h "{ Class: SmallInteger }"
|
|
64151392ff64
added generic #paletteImageAsTrueColorForm implementation
Claus Gittinger <cg@exept.de>
parents:
1595
diff
changeset
|
4649 |
pixel "{ Class: SmallInteger }"
|
|
64151392ff64
added generic #paletteImageAsTrueColorForm implementation
Claus Gittinger <cg@exept.de>
parents:
1595
diff
changeset
|
4650 |
rgbVal "{ Class: SmallInteger }"
|
|
64151392ff64
added generic #paletteImageAsTrueColorForm implementation
Claus Gittinger <cg@exept.de>
parents:
1595
diff
changeset
|
4651 |
dstIdx "{ Class: SmallInteger }"
|
| 209 | 4652 |
colorValues |
| 193 | 4653 |
scaleRed scaleGreen scaleBlue redShift greenShift blueShift |
| 194 | 4654 |
form imageBits bestFormat usedDeviceDepth usedDeviceBitsPerPixel |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4655 |
n i pixelArray newPixelArray| |
| 193 | 4656 |
|
4657 |
"/ this is a slow fallback method; this ought to be |
|
4658 |
"/ redefined in DepthxImage for more performance. |
|
4659 |
||
4660 |
depth := aDevice depth. |
|
4661 |
||
4662 |
"/ gather r/g/b values for all colors in the map ... |
|
4663 |
||
4664 |
nColors := colorMap size. |
|
4665 |
||
4666 |
"/ precompute scales to map from 0..100 into devices range |
|
4667 |
"/ (this may be different for the individual components) |
|
4668 |
||
4669 |
scaleRed := ((1 bitShift:aDevice bitsRed) - 1) / 100. |
|
4670 |
scaleGreen := ((1 bitShift:aDevice bitsGreen) - 1) / 100. |
|
4671 |
scaleBlue := ((1 bitShift:aDevice bitsBlue) - 1) / 100. |
|
4672 |
redShift := aDevice shiftRed. |
|
4673 |
greenShift := aDevice shiftGreen. |
|
4674 |
blueShift := aDevice shiftBlue. |
|
4675 |
||
4676 |
colorValues := Array uninitializedNew:nColors. |
|
4677 |
||
4678 |
1 to:nColors do:[:index | |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4679 |
|clr rv gv bv v "{ Class: SmallInteger }" |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4680 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4681 |
clr := colorMap at:index. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4682 |
clr notNil ifTrue:[ |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4683 |
rv := (clr red * scaleRed) rounded. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4684 |
gv := (clr green * scaleGreen) rounded. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4685 |
bv := (clr blue * scaleBlue) rounded. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4686 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4687 |
v := rv bitShift:redShift. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4688 |
v := v bitOr:(gv bitShift:greenShift). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4689 |
v := v bitOr:(bv bitShift:blueShift). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4690 |
colorValues at:index put:v. |
| 193 | 4691 |
"/ clr print. ' ' print. |
4692 |
"/ rv print. ' ' print. gv print. ' ' print. bv print. ' ' print. |
|
4693 |
"/ ' -> ' print. v printNL. |
|
4694 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4695 |
] |
| 193 | 4696 |
]. |
4697 |
||
4698 |
bestFormat := self bestSupportedImageFormatFor:aDevice. |
|
|
235
579f3f804a46
padding info in supportedFormats
Claus Gittinger <cg@exept.de>
parents:
230
diff
changeset
|
4699 |
usedDeviceDepth := bestFormat at:#depth. |
|
579f3f804a46
padding info in supportedFormats
Claus Gittinger <cg@exept.de>
parents:
230
diff
changeset
|
4700 |
usedDeviceBitsPerPixel := bestFormat at:#bitsPerPixel. |
| 193 | 4701 |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4702 |
"/ the temporary helper image is only needed to allow |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4703 |
"/ the rowAt:putAll: calls below. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4704 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4705 |
i := Image implementorForDepth:usedDeviceBitsPerPixel. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4706 |
i width:width. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4707 |
i height:height. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4708 |
imageBits := ByteArray new:(i bytesPerRow * height). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4709 |
i bits:imageBits. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4710 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4711 |
"/ now, walk over the image and replace |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4712 |
"/ colorMap indices by color values in the bits array |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4713 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4714 |
h := height - 1. |
|
1605
64151392ff64
added generic #paletteImageAsTrueColorForm implementation
Claus Gittinger <cg@exept.de>
parents:
1595
diff
changeset
|
4715 |
w := width - 1. |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4716 |
pixelArray := self pixelArraySpecies new:width. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4717 |
newPixelArray := i pixelArraySpecies new:width. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4718 |
|
|
1605
64151392ff64
added generic #paletteImageAsTrueColorForm implementation
Claus Gittinger <cg@exept.de>
parents:
1595
diff
changeset
|
4719 |
0 to:h do:[:y | |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4720 |
self rowAt:y into:pixelArray. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4721 |
0 to:w do:[:x | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4722 |
pixel := pixelArray at:(x+1). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4723 |
newPixelArray at:(x+1) put:(colorValues at:pixel + 1). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4724 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4725 |
i rowAt:y putAll:newPixelArray. |
|
1605
64151392ff64
added generic #paletteImageAsTrueColorForm implementation
Claus Gittinger <cg@exept.de>
parents:
1595
diff
changeset
|
4726 |
]. |
| 193 | 4727 |
|
4728 |
form := Form width:width height:height depth:usedDeviceDepth on:aDevice. |
|
4729 |
form isNil ifTrue:[^ nil]. |
|
4730 |
form initGC. |
|
4731 |
||
4732 |
form |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4733 |
copyBitsFrom:imageBits bitsPerPixel:usedDeviceBitsPerPixel depth:usedDeviceDepth |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4734 |
width:width height:height |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4735 |
x:0 y:0 toX:0 y:0. |
| 193 | 4736 |
|
4737 |
^ form |
|
4738 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
4739 |
"Modified: 24.4.1997 / 16:51:57 / cg" |
| 0 | 4740 |
! ! |
4741 |
||
| 283 | 4742 |
!Image methodsFor:'converting rgb images'! |
4743 |
||
| 854 | 4744 |
asDitheredTrueColor8FormOn:aDevice |
4745 |
"convert an rgb image to a dithered depth8-form on aDevice. |
|
4746 |
Return the device-form." |
|
4747 |
||
4748 |
|fixColors pixel |
|
4749 |
dstIdx "{ Class: SmallInteger }"
|
|
4750 |
shiftRed "{ Class: SmallInteger }"
|
|
4751 |
shiftGreen "{ Class: SmallInteger }"
|
|
4752 |
shiftBlue "{ Class: SmallInteger }"
|
|
4753 |
nRed "{ Class: SmallInteger }"
|
|
4754 |
nGreen "{ Class: SmallInteger }"
|
|
4755 |
nBlue "{ Class: SmallInteger }"|
|
|
4756 |
||
4757 |
shiftRed := aDevice shiftRed. |
|
4758 |
shiftGreen := aDevice shiftGreen. |
|
4759 |
shiftBlue := aDevice shiftBlue. |
|
4760 |
||
4761 |
nRed := (1 bitShift:aDevice bitsRed). |
|
4762 |
nGreen := (1 bitShift:aDevice bitsGreen). |
|
4763 |
nBlue := (1 bitShift:aDevice bitsBlue). |
|
4764 |
||
4765 |
fixColors := Array new:(nRed * nGreen * nBlue). |
|
4766 |
||
4767 |
dstIdx := 1. |
|
4768 |
0 to:nRed - 1 do:[:sR | |
|
| 1642 | 4769 |
0 to:nGreen - 1 do:[:sG | |
4770 |
0 to:nBlue - 1 do:[:sB | |
|
4771 |
pixel := (sR bitShift:shiftRed) |
|
4772 |
+ (sG bitShift:shiftGreen) |
|
4773 |
+ (sB bitShift:shiftBlue). |
|
4774 |
fixColors at:dstIdx put:(Color colorId:(pixel)). |
|
4775 |
dstIdx := dstIdx + 1 |
|
4776 |
] |
|
4777 |
] |
|
| 854 | 4778 |
]. |
4779 |
||
4780 |
^ self |
|
| 1642 | 4781 |
asFloydSteinbergDitheredDepth8FormOn:aDevice |
4782 |
colors:fixColors |
|
4783 |
nRed:nRed nGreen:nGreen nBlue:nBlue |
|
| 854 | 4784 |
|
4785 |
"Modified: 14.6.1996 / 17:18:57 / cg" |
|
4786 |
"Created: 14.6.1996 / 17:23:52 / cg" |
|
4787 |
! |
|
4788 |
||
| 283 | 4789 |
rgbImageAsFormOn:aDevice |
4790 |
"convert am rgb image to a device-form on aDevice. |
|
4791 |
Return the device-form." |
|
4792 |
||
4793 |
|visual| |
|
4794 |
||
4795 |
visual := aDevice visualType. |
|
4796 |
(visual == #StaticGray) ifTrue:[ |
|
| 1642 | 4797 |
^ self asGrayFormOn:aDevice |
| 0 | 4798 |
]. |
| 283 | 4799 |
(visual == #TrueColor) ifTrue:[ |
| 1642 | 4800 |
^ self rgbImageAsTrueColorFormOn:aDevice |
| 0 | 4801 |
]. |
| 858 | 4802 |
|
4803 |
"/ PseudoColor conversion also works for StaticColor, GrayScale |
|
4804 |
"/ and DirectColor displays; although possibly with suboptimal results |
|
4805 |
||
| 283 | 4806 |
^ self rgbImageAsPseudoFormOn:aDevice |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4807 |
|
| 858 | 4808 |
"Modified: 14.6.1996 / 19:30:06 / cg" |
| 283 | 4809 |
! |
4810 |
||
4811 |
rgbImageAsPseudoFormOn:aDevice |
|
4812 |
"return a pseudocolor form from the rgb-picture" |
|
4813 |
||
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
4814 |
|n "{ Class: SmallInteger }"
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
4815 |
depth "{ Class: SmallInteger }"
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
4816 |
palette f| |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
4817 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
4818 |
(depth := self depth) <= 8 ifTrue:[ |
| 1642 | 4819 |
"/ simulate it via a temporary palette image |
4820 |
||
4821 |
palette := Array new:(1 bitShift:depth). |
|
4822 |
||
4823 |
n := (1 bitShift:depth)-1. |
|
4824 |
0 to:n do:[:pixelValue | |
|
4825 |
palette at:(pixelValue+1) put:(self colorFromValue:pixelValue) |
|
4826 |
]. |
|
4827 |
||
4828 |
colorMap := palette. |
|
4829 |
photometric := #palette. |
|
4830 |
f := self paletteImageAsPseudoFormOn:aDevice. |
|
4831 |
colorMap := nil. |
|
4832 |
photometric := #rgb. |
|
4833 |
^ f |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
4834 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
4835 |
|
| 283 | 4836 |
^ self subclassResponsibility |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
4837 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
4838 |
"Modified: 8.6.1996 / 10:58:25 / cg" |
| 283 | 4839 |
! |
4840 |
||
4841 |
rgbImageAsTrueColorFormOn:aDevice |
|
4842 |
"return a truecolor form from the rgb-picture." |
|
4843 |
||
| 1063 | 4844 |
|bestFormat usedDeviceDepth usedDeviceBitsPerPixel |
| 283 | 4845 |
form| |
| 193 | 4846 |
|
4847 |
bestFormat := self bestSupportedImageFormatFor:aDevice. |
|
|
235
579f3f804a46
padding info in supportedFormats
Claus Gittinger <cg@exept.de>
parents:
230
diff
changeset
|
4848 |
usedDeviceDepth := bestFormat at:#depth. |
|
579f3f804a46
padding info in supportedFormats
Claus Gittinger <cg@exept.de>
parents:
230
diff
changeset
|
4849 |
usedDeviceBitsPerPixel := bestFormat at:#bitsPerPixel. |
| 193 | 4850 |
|
| 854 | 4851 |
"/ kludge for some 15bit XFree servers (should return 16 here - does not) |
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
4852 |
usedDeviceBitsPerPixel == 15 ifTrue:[ |
| 1642 | 4853 |
usedDeviceBitsPerPixel := 16 |
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
4854 |
]. |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
4855 |
|
| 283 | 4856 |
"/ |
4857 |
"/ only the trivial case, where the depths match |
|
4858 |
"/ is handled here; conversions are supposed to |
|
4859 |
"/ be done in concrete subclasses (see D24Image) |
|
4860 |
"/ |
|
4861 |
self bitsPerPixel == usedDeviceBitsPerPixel ifFalse:[ |
|
| 1642 | 4862 |
'Image [warning]: unimplemented trueColor depth in rgbImageAsTrueColorFormOn: ' errorPrint. self bitsPerPixel errorPrintCR. |
4863 |
^ self asMonochromeFormOn:aDevice |
|
| 193 | 4864 |
]. |
4865 |
||
| 283 | 4866 |
form := Form width:width height:height depth:usedDeviceDepth on:aDevice. |
4867 |
form isNil ifTrue:[ |
|
| 1642 | 4868 |
'Image [warning]: display bitmap creation failed' errorPrintCR. |
4869 |
^ nil |
|
| 193 | 4870 |
]. |
4871 |
form initGC. |
|
4872 |
||
4873 |
form |
|
| 1642 | 4874 |
copyBitsFrom:bytes bitsPerPixel:usedDeviceBitsPerPixel depth:usedDeviceDepth |
4875 |
width:width height:height |
|
4876 |
x:0 y:0 toX:0 y:0. |
|
| 193 | 4877 |
|
4878 |
^ form |
|
4879 |
||
|
1175
5595569cfbd3
newStyle info & error messages
Claus Gittinger <cg@exept.de>
parents:
1170
diff
changeset
|
4880 |
"Modified: 10.1.1997 / 17:53:23 / cg" |
| 283 | 4881 |
! ! |
4882 |
||
4883 |
!Image methodsFor:'copying'! |
|
4884 |
||
4885 |
postCopy |
|
| 592 | 4886 |
"redefined to also copy the pixels and the colorMap |
4887 |
and clear out any device handles in the copy." |
|
4888 |
||
| 283 | 4889 |
bytes := bytes copy. |
| 916 | 4890 |
colorMap := colorMap copy. |
| 283 | 4891 |
device := deviceForm := monoDeviceForm := fullColorDeviceForm := nil |
| 592 | 4892 |
|
| 916 | 4893 |
"Modified: 5.7.1996 / 13:16:04 / cg" |
| 283 | 4894 |
! ! |
4895 |
||
4896 |
!Image methodsFor:'displaying'! |
|
4897 |
||
| 758 | 4898 |
displayFilledOn:aGC |
| 759 | 4899 |
"display the receiver as an opaque image. |
| 758 | 4900 |
This allows Images to be wrapped by a FillingWrapper" |
4901 |
||
4902 |
aGC displayOpaqueForm:self x:0 y:0. |
|
4903 |
||
4904 |
"Created: 29.5.1996 / 10:34:18 / cg" |
|
| 759 | 4905 |
"Modified: 29.5.1996 / 10:52:36 / cg" |
| 758 | 4906 |
! |
4907 |
||
| 283 | 4908 |
displayOn:aGC at:aPoint |
| 592 | 4909 |
"draw the receiver in the graphicsContext, aGC. |
| 283 | 4910 |
Smalltalk-80 compatibility" |
4911 |
||
| 672 | 4912 |
self displayOn:aGC x:aPoint x y:aPoint y. |
4913 |
||
4914 |
"Modified: 12.5.1996 / 20:16:38 / cg" |
|
4915 |
! |
|
4916 |
||
4917 |
displayOn:aGC x:x y:y |
|
4918 |
"draw the receiver in the graphicsContext, aGC. |
|
4919 |
Smalltalk-80 compatibility" |
|
4920 |
||
4921 |
aGC displayForm:self x:x y:y. |
|
| 592 | 4922 |
|
4923 |
"Modified: 23.4.1996 / 11:12:31 / cg" |
|
| 672 | 4924 |
"Created: 12.5.1996 / 20:14:31 / cg" |
| 758 | 4925 |
! |
4926 |
||
|
1086
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
4927 |
displayOpaqueOn:aGC x:x y:y |
|
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
4928 |
"draw the receiver in the graphicsContext, aGC. |
|
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
4929 |
Smalltalk-80 compatibility" |
|
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
4930 |
|
|
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
4931 |
aGC displayOpaqueForm:self x:x y:y. |
|
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
4932 |
|
|
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
4933 |
"Modified: 23.4.1996 / 11:12:31 / cg" |
|
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
4934 |
"Created: 22.10.1996 / 16:35:49 / cg" |
|
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
4935 |
! |
|
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
4936 |
|
| 758 | 4937 |
displayStrokedOn:aGC |
| 759 | 4938 |
"display the receiver as an non opaque image. |
| 758 | 4939 |
This allows Images to be wrapped by a StrokingWrapper" |
4940 |
||
4941 |
aGC displayForm:self x:0 y:0. |
|
4942 |
||
| 759 | 4943 |
"Created: 29.5.1996 / 10:34:18 / cg" |
4944 |
"Modified: 29.5.1996 / 10:52:30 / cg" |
|
| 283 | 4945 |
! ! |
4946 |
||
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4947 |
!Image methodsFor:'dither helpers'! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4948 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4949 |
burkesDitheredMonochromeBits |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4950 |
"return the bitmap for a dithered monochrome bitmap from the image. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4951 |
Works for any source depths / photometric" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4952 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4953 |
|dstIndex "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4954 |
nextDst "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4955 |
bytesPerMonoRow "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4956 |
monoBits greyValues |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4957 |
errorArray |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4958 |
errorArray1 |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4959 |
e t |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4960 |
w "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4961 |
h "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4962 |
bitCnt "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4963 |
byte "{Class: SmallInteger }"
|
| 1063 | 4964 |
grey| |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4965 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4966 |
self depth > 12 ifTrue:[ |
| 1642 | 4967 |
^ self floydSteinbergDitheredMonochromeBits |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4968 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4969 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4970 |
w := width. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4971 |
h := height. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4972 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4973 |
bytesPerMonoRow := (w + 7) // 8. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4974 |
monoBits := ByteArray uninitializedNew:(bytesPerMonoRow * h). |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4975 |
(monoBits isNil or:[bytes isNil]) ifTrue:[ |
| 1642 | 4976 |
^ nil |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4977 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4978 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4979 |
errorArray := Array new:(w+4). |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4980 |
errorArray1 := Array new:(w+4) withAll:0. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4981 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4982 |
dstIndex := 1. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4983 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4984 |
"/ fetch scaled brightness values outside of loop into a table; |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4985 |
"/ use table-value in loop |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4986 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4987 |
greyValues := self greyMapForRange:(255*1024). |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4988 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
4989 |
0 to:(h-1) do:[:y | |
| 1642 | 4990 |
nextDst := dstIndex + bytesPerMonoRow. |
4991 |
byte := 0. |
|
4992 |
bitCnt := 8. |
|
4993 |
||
4994 |
t := errorArray. |
|
4995 |
errorArray := errorArray1. |
|
4996 |
errorArray1 := t. |
|
4997 |
||
4998 |
errorArray1 atAllPut:0. |
|
4999 |
||
5000 |
self valuesAtY:y from:0 to:(w-1) do:[:x :pixel | |
|
5001 |
|eP "{Class: SmallInteger }"
|
|
5002 |
eD |
|
5003 |
eI "{Class: SmallInteger }"
|
|
5004 |
xE "{Class: SmallInteger }"
|
|
5005 |
xN "{Class: SmallInteger }" |
|
|
5006 |
||
5007 |
"/ get the colors grey value [0 .. 1] |
|
5008 |
grey := greyValues at:(pixel + 1). |
|
5009 |
||
5010 |
"/ adjust error |
|
5011 |
xE := x + 2 + 1. |
|
5012 |
grey := (grey + (errorArray at:xE)). |
|
5013 |
||
5014 |
byte := byte bitShift:1. |
|
5015 |
grey > (127*1024) ifTrue:[ |
|
5016 |
byte := byte bitOr:1. "/ white |
|
5017 |
e := grey - (255*1024) |
|
5018 |
] ifFalse:[ |
|
5019 |
e := grey "/ black |
|
5020 |
]. |
|
5021 |
||
5022 |
e ~= 0 ifTrue:[ |
|
5023 |
"/ distribute the error: |
|
5024 |
"/ XX 8 4 |
|
5025 |
"/ 2 4 8 4 2 |
|
5026 |
||
5027 |
eD := e. |
|
5028 |
eI := e // 32. |
|
5029 |
||
5030 |
eP := eI * 8. eD := eD - eP. |
|
5031 |
||
5032 |
xN := xE + 1. |
|
5033 |
errorArray at:xN put:(errorArray at:xN) + eP. |
|
5034 |
||
5035 |
eD := eD - eP. |
|
5036 |
errorArray1 at:xE put:(errorArray1 at:xE) + eP. |
|
5037 |
||
5038 |
eP := eI * 4. eD := eD - eP. |
|
5039 |
xN := xE + 2. |
|
5040 |
errorArray at:xN put:(errorArray at:xN) + eP. |
|
5041 |
||
5042 |
eD := eD - eP. |
|
5043 |
xN := xE - 1. |
|
5044 |
errorArray1 at:xN put:(errorArray1 at:xN) + eP. |
|
5045 |
||
5046 |
eD := eD - eP. |
|
5047 |
xN := xE + 1. |
|
5048 |
errorArray1 at:xN put:(errorArray1 at:xN) + eP. |
|
5049 |
||
5050 |
eP := eI * 2. eD := eD - eP. |
|
5051 |
xN := xE - 2. |
|
5052 |
errorArray1 at:xN put:(errorArray1 at:xN) + eP. |
|
5053 |
||
5054 |
eD := eD. |
|
5055 |
xN := xE + 2. |
|
5056 |
errorArray1 at:xN put:(errorArray1 at:xN) + eP. |
|
5057 |
]. |
|
5058 |
||
5059 |
bitCnt := bitCnt - 1. |
|
5060 |
bitCnt == 0 ifTrue:[ |
|
5061 |
monoBits at:dstIndex put:byte. |
|
5062 |
dstIndex := dstIndex + 1. |
|
5063 |
byte := 0. |
|
5064 |
bitCnt := 8. |
|
5065 |
]. |
|
5066 |
||
5067 |
]. |
|
5068 |
bitCnt ~~ 8 ifTrue:[ |
|
5069 |
byte := byte bitShift:bitCnt. |
|
5070 |
monoBits at:dstIndex put:byte. |
|
5071 |
]. |
|
5072 |
||
5073 |
dstIndex := nextDst. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5074 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5075 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5076 |
^ monoBits |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5077 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5078 |
"Created: 10.6.1996 / 12:18:20 / cg" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5079 |
"Modified: 10.6.1996 / 13:16:33 / cg" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5080 |
! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5081 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5082 |
floydSteinbergDitheredBitsDepth:depth |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5083 |
"return the bitmap for a dithered depth bitmap from the image. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5084 |
Works for any source depths / photometric, |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5085 |
but very slow since each pixel is processed individually. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5086 |
Redefined by some subclasses for more performance (D8Image)" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5087 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5088 |
|dstIndex "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5089 |
nextDst "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5090 |
bytesPerOutRow "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5091 |
outBits greyValues greyErrors greyPixels greyLevels |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5092 |
errorArray |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5093 |
nextErrorArray |
| 1063 | 5094 |
t |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5095 |
w "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5096 |
h "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5097 |
bitCnt "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5098 |
byte "{Class: SmallInteger }"
|
| 1063 | 5099 |
grey |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5100 |
eR eRB eB eLB | |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5101 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5102 |
depth > 8 ifTrue:[ |
| 1642 | 5103 |
self error:'unimplemented conversion'. |
5104 |
^ nil |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5105 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5106 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5107 |
w := width. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5108 |
h := height. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5109 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5110 |
bytesPerOutRow := ((w * depth) + 7) // 8. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5111 |
outBits := ByteArray uninitializedNew:(bytesPerOutRow * h). |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5112 |
(outBits isNil or:[bytes isNil]) ifTrue:[ |
| 1642 | 5113 |
^ nil |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5114 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5115 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5116 |
greyLevels := (1 bitShift:depth) - 1. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5117 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5118 |
errorArray := Array new:w+2. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5119 |
nextErrorArray := Array new:w+2. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5120 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5121 |
nextErrorArray atAllPut:0. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5122 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5123 |
dstIndex := 1. |
|
828
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
5124 |
bitCnt := 8. |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5125 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5126 |
self depth <= 12 ifTrue:[ |
| 1642 | 5127 |
"/ fetch scaled brightness values outside of loop into a table; |
5128 |
"/ use table-value in loop |
|
5129 |
||
5130 |
greyValues := self greyMapForRange:(greyLevels). |
|
5131 |
||
5132 |
greyPixels := greyValues collect:[:v | v isNil ifTrue:[ |
|
5133 |
0 |
|
5134 |
] ifFalse:[ |
|
5135 |
v truncated]]. |
|
5136 |
||
5137 |
greyPixels := ByteArray withAll:greyPixels. |
|
5138 |
||
5139 |
greyErrors := greyValues collect:[:v | v isNil ifTrue:[ |
|
5140 |
0 |
|
5141 |
] ifFalse:[ |
|
5142 |
((v - v truncated) * 1024) truncated |
|
5143 |
]]. |
|
5144 |
||
5145 |
0 to:(h-1) do:[:y | |
|
5146 |
nextDst := dstIndex + bytesPerOutRow. |
|
5147 |
byte := 0. |
|
5148 |
||
5149 |
t := errorArray. |
|
5150 |
errorArray := nextErrorArray. |
|
5151 |
nextErrorArray := t. |
|
5152 |
||
5153 |
nextErrorArray atAllPut:0. |
|
5154 |
||
5155 |
self valuesAtY:y from:0 to:(w-1) do:[:x :value | |
|
5156 |
|e "{ Class: SmallInteger }"
|
|
5157 |
pixel "{ Class: SmallInteger }"
|
|
5158 |
error "{ Class: SmallInteger }"
|
|
5159 |
e16 "{ Class: SmallInteger }"
|
|
5160 |
xE "{ Class: SmallInteger }"
|
|
5161 |
xN "{ Class: SmallInteger }" |
|
|
5162 |
||
5163 |
pixel := greyPixels at:(value + 1). |
|
5164 |
||
5165 |
"/ adjust error |
|
5166 |
xE := x + 2. |
|
5167 |
error := (greyErrors at:(value + 1)) + (errorArray at:xE). |
|
5168 |
||
5169 |
byte := byte bitShift:depth. |
|
5170 |
error > 512 "0.5" ifTrue:[ |
|
5171 |
pixel := pixel + 1. |
|
5172 |
e := error - 1024 "1.0" |
|
5173 |
] ifFalse:[ |
|
5174 |
e := error |
|
5175 |
]. |
|
5176 |
byte := byte bitOr:pixel. |
|
5177 |
||
5178 |
e ~= 0 ifTrue:[ |
|
5179 |
e16 := e // 16. |
|
5180 |
||
5181 |
eR := e16 * 7. "/ 7/16 to right |
|
5182 |
eRB := e16 * 1. "/ 1/16 to right below |
|
5183 |
eB := e16 * 5. "/ 5/16 to below |
|
5184 |
eLB := e - eR - eRB - eB. "/ 3/16 to left below |
|
5185 |
||
5186 |
xN := xE + 1. |
|
5187 |
eR ~= 0 ifTrue:[ |
|
5188 |
errorArray at:xN put:(errorArray at:xN) + eR. |
|
5189 |
]. |
|
5190 |
eRB ~= 0 ifTrue:[ |
|
5191 |
nextErrorArray at:xN put:(nextErrorArray at:xN) + eRB. |
|
5192 |
]. |
|
5193 |
eB ~= 0 ifTrue:[ |
|
5194 |
nextErrorArray at:xE put:(nextErrorArray at:xE) + eB. |
|
5195 |
]. |
|
5196 |
eLB ~= 0 ifTrue:[ |
|
5197 |
xN := xE - 1. |
|
5198 |
nextErrorArray at:xN put:(nextErrorArray at:xN) + eLB. |
|
5199 |
]. |
|
5200 |
]. |
|
5201 |
||
5202 |
bitCnt := bitCnt - depth. |
|
5203 |
bitCnt == 0 ifTrue:[ |
|
5204 |
outBits at:dstIndex put:byte. |
|
5205 |
dstIndex := dstIndex + 1. |
|
5206 |
byte := 0. |
|
5207 |
bitCnt := 8. |
|
5208 |
]. |
|
5209 |
||
5210 |
]. |
|
5211 |
bitCnt ~~ 8 ifTrue:[ |
|
5212 |
byte := byte bitShift:bitCnt. |
|
5213 |
outBits at:dstIndex put:byte. |
|
5214 |
bitCnt := 8. |
|
5215 |
]. |
|
5216 |
||
5217 |
dstIndex := nextDst. |
|
5218 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5219 |
] ifFalse:[ |
| 1642 | 5220 |
0 to:(h-1) do:[:y | |
5221 |
nextDst := dstIndex + bytesPerOutRow. |
|
5222 |
byte := 0. |
|
5223 |
||
5224 |
t := errorArray. |
|
5225 |
errorArray := nextErrorArray. |
|
5226 |
nextErrorArray := t. |
|
5227 |
||
5228 |
nextErrorArray atAllPut:0. |
|
5229 |
||
5230 |
self colorsAtY:y from:0 to:(w-1) do:[:x :clr | |
|
5231 |
|e "{ Class: SmallInteger }"
|
|
5232 |
pixel "{ Class: SmallInteger }"
|
|
5233 |
error "{ Class: SmallInteger }"
|
|
5234 |
e16 "{ Class: SmallInteger }"
|
|
5235 |
xE "{ Class: SmallInteger }"
|
|
5236 |
xN "{ Class: SmallInteger }" |
|
|
5237 |
||
5238 |
grey := (clr brightness * greyLevels). |
|
5239 |
pixel := grey truncated. |
|
5240 |
error := ((grey - pixel) * 1024) truncated. |
|
5241 |
||
5242 |
"/ adjust error |
|
5243 |
xE := x + 2. |
|
5244 |
error := error + (errorArray at:xE). |
|
5245 |
||
5246 |
byte := byte bitShift:depth. |
|
5247 |
error > 512 "0.5" ifTrue:[ |
|
5248 |
pixel := pixel + 1. |
|
5249 |
e := error - 1024 "1.0" |
|
5250 |
] ifFalse:[ |
|
5251 |
e := error |
|
5252 |
]. |
|
5253 |
||
5254 |
byte := byte bitOr:pixel. |
|
5255 |
||
5256 |
e ~= 0 ifTrue:[ |
|
5257 |
e16 := e // 16. |
|
5258 |
||
5259 |
eR := e16 * 7. "/ 7/16 to right |
|
5260 |
eRB := e16 * 1. "/ 1/16 to right below |
|
5261 |
eB := e16 * 5. "/ 5/16 to below |
|
5262 |
eLB := e - eR - eRB - eB. "/ 3/16 to left below |
|
5263 |
||
5264 |
xN := xE + 1. |
|
5265 |
eR ~= 0 ifTrue:[ |
|
5266 |
errorArray at:xN put:(errorArray at:xN) + eR. |
|
5267 |
]. |
|
5268 |
eRB ~= 0 ifTrue:[ |
|
5269 |
nextErrorArray at:xN put:(nextErrorArray at:xN) + eRB. |
|
5270 |
]. |
|
5271 |
eB ~= 0 ifTrue:[ |
|
5272 |
nextErrorArray at:xE put:(nextErrorArray at:xE) + eB. |
|
5273 |
]. |
|
5274 |
eLB ~= 0 ifTrue:[ |
|
5275 |
xN := xE - 1. |
|
5276 |
nextErrorArray at:xN put:(nextErrorArray at:xN) + eLB. |
|
5277 |
]. |
|
5278 |
]. |
|
5279 |
||
5280 |
bitCnt := bitCnt - depth. |
|
5281 |
bitCnt == 0 ifTrue:[ |
|
5282 |
outBits at:dstIndex put:byte. |
|
5283 |
dstIndex := dstIndex + 1. |
|
5284 |
byte := 0. |
|
5285 |
bitCnt := 8. |
|
5286 |
]. |
|
5287 |
||
5288 |
]. |
|
5289 |
bitCnt ~~ 8 ifTrue:[ |
|
5290 |
byte := byte bitShift:bitCnt. |
|
5291 |
outBits at:dstIndex put:byte. |
|
5292 |
bitCnt := 8. |
|
5293 |
]. |
|
5294 |
||
5295 |
dstIndex := nextDst. |
|
5296 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5297 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5298 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5299 |
^ outBits |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5300 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5301 |
"Created: 10.6.1996 / 13:28:22 / cg" |
|
828
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
5302 |
"Modified: 11.6.1996 / 00:13:38 / cg" |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5303 |
! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
5304 |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5305 |
floydSteinbergDitheredDepth8BitsColors:colors |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5306 |
"return a floyd-steinberg dithered bitmap from the receiver picture, |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5307 |
which must be a depth-8 image. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5308 |
This method expects an array of colors to be used for dithering |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5309 |
(which need not be a colorCubes colors)." |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5310 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5311 |
|pseudoBits |
| 882 | 5312 |
rgbBytes |
5313 |
ditherRGBBytes ditherColors |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5314 |
w "{Class: SmallInteger }"
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5315 |
h "{Class: SmallInteger }"
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5316 |
index "{Class: SmallInteger }"
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5317 |
fixR "{Class: SmallInteger }"
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5318 |
fixG "{Class: SmallInteger }"
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5319 |
fixB "{Class: SmallInteger }"
|
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5320 |
ditherIds failed map lastColor colorsByDistance qScramble |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5321 |
clrLookup lookupPos |
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5322 |
error clr| |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5323 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5324 |
self depth ~~ 8 ifTrue:[^ nil]. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5325 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5326 |
"/ |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5327 |
"/ collect color components as integer values (for integer arithmetic) |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5328 |
"/ |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5329 |
rgbBytes := ByteArray uninitializedNew:256 * 3. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5330 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5331 |
photometric == #palette ifTrue:[ |
| 1642 | 5332 |
lastColor := colorMap size - 1 |
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5333 |
] ifFalse:[ |
| 1642 | 5334 |
lastColor := 255. |
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5335 |
]. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5336 |
index := 1. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5337 |
0 to:lastColor do:[:pix | |
| 1642 | 5338 |
clr := self colorFromValue:pix. |
5339 |
rgbBytes at:index put:(clr redByte). |
|
5340 |
rgbBytes at:index+1 put:(clr greenByte). |
|
5341 |
rgbBytes at:index+2 put:(clr blueByte). |
|
5342 |
||
5343 |
index := index + 3. |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5344 |
]. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5345 |
|
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5346 |
"/ collect valid ditherColors ... |
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5347 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5348 |
ditherColors := colors select:[:clr | clr notNil]. |
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5349 |
|
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5350 |
"/ ... and sort by manhatten distance from black |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5351 |
|
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5352 |
qScramble := #( |
| 1642 | 5353 |
"/ 2rX00X00X00X00 |
5354 |
||
5355 |
2r000000000000 "/ 0 |
|
5356 |
2r000000000100 "/ 1 |
|
5357 |
2r000000100000 "/ 2 |
|
5358 |
2r000000100100 "/ 3 |
|
5359 |
2r000100000000 "/ 4 |
|
5360 |
2r000100000100 "/ 5 |
|
5361 |
2r000100100000 "/ 6 |
|
5362 |
2r000100100100 "/ 7 |
|
5363 |
2r100000000000 "/ 8 |
|
5364 |
2r100000000100 "/ 9 |
|
5365 |
2r100000100000 "/ a |
|
5366 |
2r100000100100 "/ b |
|
5367 |
2r100100000000 "/ c |
|
5368 |
2r100100000100 "/ d |
|
5369 |
2r100100100000 "/ e |
|
5370 |
2r100100100100 "/ f |
|
5371 |
). |
|
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5372 |
|
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5373 |
ditherColors := ditherColors sort:[:a :b | |
| 1642 | 5374 |
|cr "{Class: SmallInteger }"
|
5375 |
cg "{Class: SmallInteger }"
|
|
5376 |
cb "{Class: SmallInteger }"
|
|
5377 |
i1 "{Class: SmallInteger }"
|
|
5378 |
i2 "{Class: SmallInteger }"|
|
|
5379 |
||
5380 |
cr := a redByte. |
|
5381 |
cg := a greenByte. |
|
5382 |
cb := a blueByte. |
|
5383 |
i1 := qScramble at:((cr bitShift:-4) bitAnd:16r0F) + 1. |
|
5384 |
i1 := i1 + ((qScramble at:((cg bitShift:-4) bitAnd:16r0F) + 1) bitShift:-1). |
|
5385 |
i1 := i1 + ((qScramble at:((cb bitShift:-4) bitAnd:16r0F) + 1) bitShift:-2). |
|
5386 |
||
5387 |
cr := b redByte. |
|
5388 |
cg := b greenByte. |
|
5389 |
cb := b blueByte. |
|
5390 |
i2 := qScramble at:((cr bitShift:-4) bitAnd:16r0F) + 1. |
|
5391 |
i2 := i2 + ((qScramble at:((cg bitShift:-4) bitAnd:16r0F) + 1) bitShift:-1). |
|
5392 |
i2 := i2 + ((qScramble at:((cb bitShift:-4) bitAnd:16r0F) + 1) bitShift:-2). |
|
5393 |
||
5394 |
i1 < i2 |
|
5395 |
]. |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5396 |
ditherIds := (ditherColors asArray collect:[:clr | clr colorId]) asByteArray. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5397 |
|
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5398 |
"/ build an index table, for fast lookup from manhatten-r-g-b distance |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5399 |
"/ to the position in the colorList |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5400 |
|
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5401 |
clrLookup := ByteArray new:(4096). |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5402 |
index := 0. |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5403 |
ditherColors keysAndValuesDo:[:clrPosition :clr | |
| 1642 | 5404 |
|r g b i| |
5405 |
||
5406 |
r := clr redByte. |
|
5407 |
g := clr greenByte. |
|
5408 |
b := clr blueByte. |
|
5409 |
i := qScramble at:((r bitShift:-4) bitAnd:16r0F) + 1. |
|
5410 |
i := i + ((qScramble at:((g bitShift:-4) bitAnd:16r0F) + 1) bitShift:-1). |
|
5411 |
i := i + ((qScramble at:((b bitShift:-4) bitAnd:16r0F) + 1) bitShift:-2). |
|
5412 |
lookupPos := i. |
|
5413 |
||
5414 |
[index < lookupPos] whileTrue:[ |
|
5415 |
clrLookup at:(index+1) put:(clrPosition-1-1). |
|
5416 |
index := index + 1 |
|
5417 |
] |
|
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5418 |
]. |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5419 |
clrLookup from:index+1 to:4096 put:(ditherColors size - 1). |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5420 |
|
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5421 |
"/ [index <= (4095)] whileTrue:[ |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5422 |
"/ clrLookup at:(index+1) put:(ditherColors size - 1). |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5423 |
"/ index := index + 1. |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5424 |
"/ ]. |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5425 |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5426 |
"/ collect ditherColor components |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5427 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5428 |
lastColor := ditherColors size. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5429 |
ditherIds := ByteArray uninitializedNew:lastColor. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5430 |
ditherRGBBytes := ByteArray uninitializedNew:(lastColor * 3). |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5431 |
index := 1. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5432 |
1 to:lastColor do:[:pix | |
| 1642 | 5433 |
clr := ditherColors at:pix. |
5434 |
ditherRGBBytes at:index put:(clr redByte). |
|
5435 |
ditherRGBBytes at:index+1 put:(clr greenByte). |
|
5436 |
ditherRGBBytes at:index+2 put:(clr blueByte). |
|
5437 |
ditherIds at:pix put:clr colorId. |
|
5438 |
||
5439 |
index := index + 3. |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5440 |
]. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5441 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5442 |
pseudoBits := ByteArray uninitializedNew:(width * height). |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5443 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5444 |
w := width + 2. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5445 |
error := ByteArray uninitializedNew:w*(3*2). |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5446 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5447 |
w := width. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5448 |
h := height. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5449 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5450 |
failed := true. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5451 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5452 |
%{
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5453 |
int __x, __y; |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5454 |
int __eR, __eG, __eB; |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5455 |
unsigned char *srcP, *dstP; |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5456 |
unsigned char *rgbP; |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5457 |
unsigned char *idP; |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5458 |
unsigned char *dp; |
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5459 |
unsigned char *__clrLookup; |
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5460 |
short *errP, *eP; |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5461 |
int __fR, __fG, __fB; |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5462 |
int iR, iG, iB; |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5463 |
int idx; |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5464 |
int __w = __intVal(w); |
| 882 | 5465 |
int __h = __intVal(h); |
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5466 |
int __nColors = __intVal(lastColor); |
| 882 | 5467 |
int __wR = -1, __wG, __wB; |
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5468 |
static int __qScramble[16] = {
|
| 1642 | 5469 |
0x000 /* 2r000000000000 0 */, |
5470 |
0x004 /* 2r000000000100 1 */, |
|
5471 |
0x020 /* 2r000000100000 2 */, |
|
5472 |
0x024 /* 2r000000100100 3 */, |
|
5473 |
0x100 /* 2r000100000000 4 */, |
|
5474 |
0x104 /* 2r000100000100 5 */, |
|
5475 |
0x120 /* 2r000100100000 6 */, |
|
5476 |
0x124 /* 2r000100100100 7 */, |
|
5477 |
0x800 /* 2r100000000000 8 */, |
|
5478 |
0x804 /* 2r100000000100 9 */, |
|
5479 |
0x820 /* 2r100000100000 a */, |
|
5480 |
0x824 /* 2r100000100100 b */, |
|
5481 |
0x900 /* 2r100100000000 c */, |
|
5482 |
0x904 /* 2r100100000100 d */, |
|
5483 |
0x920 /* 2r100100100000 e */, |
|
5484 |
0x924 /* 2r100100100100 f */, |
|
5485 |
}; |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5486 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5487 |
if (__isByteArray(__INST(bytes)) |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5488 |
&& __isByteArray(pseudoBits) |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5489 |
&& __isByteArray(rgbBytes) |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5490 |
&& __isByteArray(ditherRGBBytes) |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5491 |
&& __isByteArray(ditherIds) |
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5492 |
&& __isByteArray(clrLookup) |
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5493 |
&& __isByteArray(error)) {
|
| 1642 | 5494 |
failed = false; |
5495 |
||
5496 |
srcP = __ByteArrayInstPtr(_INST(bytes))->ba_element; |
|
5497 |
dstP = __ByteArrayInstPtr(pseudoBits)->ba_element; |
|
5498 |
rgbP = __ByteArrayInstPtr(rgbBytes)->ba_element; |
|
5499 |
idP = __ByteArrayInstPtr(ditherIds)->ba_element; |
|
5500 |
__clrLookup = __ByteArrayInstPtr(clrLookup)->ba_element; |
|
5501 |
errP = (short *) _ByteArrayInstPtr(error)->ba_element; |
|
5502 |
||
5503 |
/* |
|
5504 |
* clear error accumulator |
|
5505 |
*/ |
|
5506 |
eP = errP; |
|
5507 |
bzero(eP, (__w+2) * 2 * 3); |
|
5508 |
||
5509 |
for (__y=__h; __y>0; __y--) {
|
|
5510 |
__eR = __eG = __eB = 0; |
|
5511 |
||
5512 |
eP = &(errP[3]); |
|
5513 |
__eR = eP[0]; |
|
5514 |
__eG = eP[1]; |
|
5515 |
__eB = eP[2]; |
|
5516 |
||
5517 |
for (__x=__w; __x>0; __x--) {
|
|
5518 |
int __want; |
|
5519 |
int pix; |
|
5520 |
int __wantR, __wantG, __wantB; |
|
5521 |
int idx; |
|
5522 |
int tR, tG, tB; |
|
5523 |
int nR, nG, nB; |
|
5524 |
int dR, dG, dB; |
|
5525 |
int minDelta, bestIdx; |
|
5526 |
int cnt; |
|
5527 |
||
5528 |
pix = *srcP++; |
|
5529 |
||
5530 |
/* |
|
5531 |
* wR, wG and wB is the wanted r/g/b value; |
|
5532 |
*/ |
|
5533 |
idx = pix+pix+pix; /* pix * 3 */ |
|
5534 |
||
5535 |
__wantR = rgbP[idx] + __eR; |
|
5536 |
__wantG = rgbP[idx+1] + __eG; |
|
5537 |
__wantB = rgbP[idx+2] + __eB; |
|
| 882 | 5538 |
|
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5539 |
#define RED_SCALE 30 |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5540 |
#define GREEN_SCALE 59 |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5541 |
#define BLUE_SCALE 11 |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5542 |
#define GOOD_DELTA 30 |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5543 |
|
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5544 |
#define xRED_SCALE 1 |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5545 |
#define xGREEN_SCALE 1 |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5546 |
#define xBLUE_SCALE 1 |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5547 |
#define xGOOD_DELTA 3 |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5548 |
|
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5549 |
#define FAST_LOOKUP |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5550 |
/* #define ONE_SHOT */ |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5551 |
#define NPROBE 8 |
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5552 |
|
|
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5553 |
#ifndef FAST_LOOKUP |
| 1642 | 5554 |
if ((__wantR == __wR) |
5555 |
&& (__wantG == __wG) |
|
5556 |
&& (__wantB == __wB)) {
|
|
5557 |
/* |
|
5558 |
* same color again - reuse last bestMatch |
|
5559 |
*/ |
|
5560 |
} else |
|
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5561 |
#endif |
| 1642 | 5562 |
{
|
5563 |
__wR = __wantR; |
|
5564 |
__wG = __wantG; |
|
5565 |
__wB = __wantB; |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5566 |
|
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5567 |
#ifdef FAST_LOOKUP |
| 1642 | 5568 |
if(__wR > 255) __wR = 255; |
5569 |
else if (__wR < 0) __wR = 0; |
|
5570 |
if(__wG > 255) __wG = 255; |
|
5571 |
else if (__wG < 0) __wG = 0; |
|
5572 |
if(__wB > 255) __wB = 255; |
|
5573 |
else if (__wB < 0) __wB = 0; |
|
5574 |
||
5575 |
{
|
|
5576 |
int lookupIndex; |
|
5577 |
int idx, idx0; |
|
5578 |
int d, delta; |
|
5579 |
unsigned char *dp0; |
|
5580 |
||
5581 |
dp = __ByteArrayInstPtr(ditherRGBBytes)->ba_element; |
|
5582 |
lookupIndex = __qScramble[((__wR & 0xF0)>>4)]; |
|
5583 |
lookupIndex |= __qScramble[((__wG & 0xF0)>>4)] >> 1; |
|
5584 |
lookupIndex |= __qScramble[((__wB & 0xF0)>>4)] >> 2; |
|
5585 |
idx = bestIdx =__clrLookup[lookupIndex]; |
|
5586 |
dp += (idx+idx+idx); |
|
5587 |
||
5588 |
/* try color at lookupIndex */ |
|
5589 |
||
5590 |
d = dp[0]; |
|
5591 |
delta = (__wR - d) * RED_SCALE; |
|
5592 |
if (delta < 0) delta = -delta; |
|
5593 |
||
5594 |
d = dp[1]; |
|
5595 |
if (__wG > d) |
|
5596 |
delta += (__wG - d) * GREEN_SCALE; |
|
5597 |
else |
|
5598 |
delta += (d - __wG) * GREEN_SCALE; |
|
5599 |
d = dp[2]; |
|
5600 |
if (__wB > d) |
|
5601 |
delta += (__wB - d) * BLUE_SCALE; |
|
5602 |
else |
|
5603 |
delta += (d - __wB) * BLUE_SCALE; |
|
5604 |
||
5605 |
if (delta <= GOOD_DELTA) {
|
|
5606 |
goto foundBest; |
|
5607 |
} |
|
5608 |
minDelta = delta; |
|
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5609 |
# ifndef ONE_SHOT |
| 1642 | 5610 |
idx0 = idx; dp0 = dp; |
5611 |
cnt = 0; |
|
5612 |
while ((++cnt <= NPROBE) && (idx > 0)) {
|
|
5613 |
/* try previous color(s) */ |
|
5614 |
||
5615 |
idx--; dp -= 3; |
|
5616 |
d = dp[0]; |
|
5617 |
delta = (__wR - d) * RED_SCALE; |
|
5618 |
if (delta < 0) delta = -delta; |
|
5619 |
d = dp[1]; |
|
5620 |
if (__wG > d) |
|
5621 |
delta += (__wG - d) * GREEN_SCALE; |
|
5622 |
else |
|
5623 |
delta += (d - __wG) * GREEN_SCALE; |
|
5624 |
d = dp[2]; |
|
5625 |
if (__wB > d) |
|
5626 |
delta += (__wB - d) * BLUE_SCALE; |
|
5627 |
else |
|
5628 |
delta += (d - __wB) * BLUE_SCALE; |
|
5629 |
||
5630 |
if (delta < minDelta) {
|
|
5631 |
bestIdx = idx; |
|
5632 |
if (delta <= GOOD_DELTA) {
|
|
5633 |
goto foundBest; |
|
5634 |
} |
|
5635 |
minDelta = delta; |
|
5636 |
} |
|
5637 |
} |
|
5638 |
||
5639 |
idx = idx0; dp = dp0; |
|
5640 |
cnt = 0; |
|
5641 |
while ((++cnt <= NPROBE) && (++idx < __nColors)) {
|
|
5642 |
/* try next color */ |
|
5643 |
||
5644 |
dp += 3; |
|
5645 |
d = dp[0]; |
|
5646 |
delta = (__wR - d) * RED_SCALE; |
|
5647 |
if (delta < 0) delta = -delta; |
|
5648 |
d = dp[1]; |
|
5649 |
if (__wG > d) |
|
5650 |
delta += (__wG - d) * GREEN_SCALE; |
|
5651 |
else |
|
5652 |
delta += (d - __wG) * GREEN_SCALE; |
|
5653 |
d = dp[2]; |
|
5654 |
if (__wB > d) |
|
5655 |
delta += (__wB - d) * BLUE_SCALE; |
|
5656 |
else |
|
5657 |
delta += (d - __wB) * BLUE_SCALE; |
|
5658 |
||
5659 |
if (delta < minDelta) {
|
|
5660 |
bestIdx = idx; |
|
5661 |
if (delta <= GOOD_DELTA) {
|
|
5662 |
goto foundBest; |
|
5663 |
} |
|
5664 |
minDelta = delta; |
|
5665 |
} |
|
5666 |
} |
|
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5667 |
# endif |
| 1642 | 5668 |
} |
5669 |
foundBest: ; |
|
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5670 |
#else |
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5671 |
/* |
| 1642 | 5672 |
if(__wR > 255) __wR = 255; |
5673 |
else if (__wR < 0) __wR = 0; |
|
5674 |
if(__wG > 255) __wG = 255; |
|
5675 |
else if (__wG < 0) __wG = 0; |
|
5676 |
if(__wB > 255) __wB = 255; |
|
5677 |
else if (__wB < 0) __wB = 0; |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5678 |
*/ |
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5679 |
|
| 1642 | 5680 |
/* find the best matching color */ |
5681 |
||
5682 |
minDelta = 99999; |
|
5683 |
bestIdx = -1; |
|
5684 |
dp = __ByteArrayInstPtr(ditherRGBBytes)->ba_element; |
|
5685 |
for (idx = 0; idx<__nColors; idx++) {
|
|
5686 |
int d, delta; |
|
5687 |
||
5688 |
d = dp[0]; |
|
5689 |
delta = (__wR - d) * RED_SCALE; |
|
5690 |
if (delta < 0) delta = -delta; |
|
5691 |
if (delta < minDelta) {
|
|
5692 |
d = dp[1]; |
|
5693 |
if (__wG > d) |
|
5694 |
delta += (__wG - d) * GREEN_SCALE; |
|
5695 |
else |
|
5696 |
delta += (d - __wG) * GREEN_SCALE; |
|
5697 |
if (delta < minDelta) {
|
|
5698 |
d = dp[2]; |
|
5699 |
if (__wB > d) |
|
5700 |
delta += (__wB - d) * BLUE_SCALE; |
|
5701 |
else |
|
5702 |
delta += (d - __wB) * BLUE_SCALE; |
|
5703 |
||
5704 |
if (delta < minDelta) {
|
|
5705 |
bestIdx = idx; |
|
5706 |
if (delta <= GOOD_DELTA) {
|
|
5707 |
break; |
|
5708 |
} |
|
5709 |
minDelta = delta; |
|
5710 |
} |
|
5711 |
} |
|
5712 |
} |
|
5713 |
dp += 3; |
|
5714 |
} |
|
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
5715 |
#endif |
| 1642 | 5716 |
} |
5717 |
dp = __ByteArrayInstPtr(ditherRGBBytes)->ba_element; |
|
5718 |
dp += bestIdx * 3; |
|
5719 |
dR = dp[0]; |
|
5720 |
dG = dp[1]; |
|
5721 |
dB = dp[2]; |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5722 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5723 |
/* |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5724 |
printf("want: %d/%d/%d (%d/%d/%d) got: %d/%d/%d\n",
|
| 1642 | 5725 |
__wantR, __wantG, __wantB, |
5726 |
__wR, __wG, __wB, |
|
5727 |
dR, dG, dB); |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5728 |
*/ |
| 1642 | 5729 |
/* |
5730 |
* store the corresponding dither colors colorId |
|
5731 |
*/ |
|
5732 |
*dstP++ = idP[bestIdx]; |
|
5733 |
||
5734 |
/* |
|
5735 |
* the new error & distribute the error |
|
5736 |
*/ |
|
5737 |
__eR = __wantR - dR; |
|
5738 |
if (__eR) {
|
|
5739 |
tR = __eR >> 4; /* 16th of error */ |
|
5740 |
nR = eP[3] + (tR * 7);/* from accu: error for (x+1 / y) */ |
|
5741 |
eP[0] = tR*5; /* 5/16th for (x / y+1) */ |
|
5742 |
eP[-3] = tR*3; /* 3/16th for (x-1 / y+1) */ |
|
5743 |
eP[3] = __eR - (tR*15); /* 1/16th for (x+1 / y+1) */ |
|
5744 |
__eR = nR; |
|
5745 |
} else {
|
|
5746 |
__eR = eP[3]; |
|
5747 |
eP[0] = eP[-3] = eP[3] = 0; |
|
5748 |
} |
|
5749 |
||
5750 |
__eG = __wantG - dG; |
|
5751 |
if (__eG) {
|
|
5752 |
tG = __eG >> 4; |
|
5753 |
nG = eP[4] + (tG * 7);/* plus 7/16'th of this error */ |
|
5754 |
eP[1] = tG*5; |
|
5755 |
eP[-2] = tG*3; |
|
5756 |
eP[4] = __eG - (tG*15); |
|
5757 |
__eG = nG; |
|
5758 |
} else {
|
|
5759 |
__eG = eP[4]; |
|
5760 |
eP[1] = eP[-2] = eP[4] = 0; |
|
5761 |
} |
|
5762 |
||
5763 |
__eB = __wantB - dB; |
|
5764 |
if (__eB) {
|
|
5765 |
tB = __eB >> 4; |
|
5766 |
nB = eP[5] + (tB * 7); |
|
5767 |
eP[2] = tB*5; |
|
5768 |
eP[-1] = tB*3; |
|
5769 |
eP[5] = __eB - (tB*15); |
|
5770 |
__eB = nB; |
|
5771 |
} else {
|
|
5772 |
__eB = eP[5]; |
|
5773 |
eP[2] = eP[-1] = eP[5] = 0; |
|
5774 |
} |
|
5775 |
||
5776 |
eP += 3; |
|
5777 |
} |
|
5778 |
} |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5779 |
} |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5780 |
%}. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5781 |
failed ifTrue:[ |
| 1642 | 5782 |
self primitiveFailed. |
5783 |
^ nil |
|
|
874
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5784 |
]. |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5785 |
|
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5786 |
^ pseudoBits |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5787 |
! |
|
cce9c1029d38
added floydSteinberg dithering for pseudo-8 images
Claus Gittinger <cg@exept.de>
parents:
873
diff
changeset
|
5788 |
|
| 854 | 5789 |
floydSteinbergDitheredDepth8BitsColors:fixColors nRed:nRed nGreen:nGreen nBlue:nBlue |
| 858 | 5790 |
"return a floyd-steinberg dithered bitmap from the receiver picture, |
5791 |
which must be a depth-8 image. |
|
5792 |
This is a special-cased dither method for 8-bit palette images being displayed on |
|
5793 |
an 8-bit pseudoColor display, AND fixColor dithering is used. |
|
| 854 | 5794 |
Use the colors in the fixColors array, which must be fixR x fixG x fixB |
5795 |
colors assigned to aDevice, such as the preallocated colors of the |
|
5796 |
Color class. |
|
5797 |
By passing the ditherColors as extra array, this method can |
|
5798 |
also be used to dither an 8bit image into a smaller number of colors, |
|
5799 |
for example to create dithered Depth4Images from Depth8Images." |
|
5800 |
||
| 858 | 5801 |
|pseudoBits |
| 854 | 5802 |
rgbBytes |
5803 |
w "{Class: SmallInteger }"
|
|
5804 |
h "{Class: SmallInteger }"
|
|
5805 |
index "{Class: SmallInteger }"
|
|
5806 |
fixR "{Class: SmallInteger }"
|
|
5807 |
fixG "{Class: SmallInteger }"
|
|
5808 |
fixB "{Class: SmallInteger }"
|
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5809 |
fixGfixB |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5810 |
fixIds failed map lastColor |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5811 |
rgbIDX "{Class: SmallInteger }"
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5812 |
idxAndErrRBytes idxAndErrGBytes idxAndErrBBytes |
| 854 | 5813 |
error clr| |
5814 |
||
| 858 | 5815 |
self depth ~~ 8 ifTrue:[^ nil]. |
5816 |
||
| 854 | 5817 |
fixR := nRed. |
5818 |
fixR == 0 ifTrue:[ ^ nil]. |
|
5819 |
fixG := nGreen. |
|
5820 |
fixG == 0 ifTrue:[ ^ nil]. |
|
5821 |
fixB := nBlue. |
|
5822 |
fixB == 0 ifTrue:[ ^ nil]. |
|
5823 |
||
5824 |
"/ simple check |
|
5825 |
(fixR * fixG * fixB) ~~ fixColors size ifTrue:[ |
|
| 1642 | 5826 |
self error:'invalid color array passed'. |
5827 |
^ nil |
|
| 854 | 5828 |
]. |
5829 |
fixIds := (fixColors asArray collect:[:clr | clr colorId]) asByteArray. |
|
5830 |
||
5831 |
"/ |
|
5832 |
"/ collect color components as integer values (for integer arithmetic) |
|
5833 |
"/ |
|
5834 |
rgbBytes := ByteArray uninitializedNew:256 * 3. |
|
5835 |
||
5836 |
index := 1. |
|
5837 |
||
5838 |
photometric == #palette ifTrue:[ |
|
| 1642 | 5839 |
lastColor := colorMap size - 1 |
| 854 | 5840 |
] ifFalse:[ |
| 1642 | 5841 |
lastColor := 255. |
| 854 | 5842 |
]. |
5843 |
0 to:lastColor do:[:pix | |
|
| 1642 | 5844 |
clr := self colorFromValue:pix. |
5845 |
rgbBytes at:index put:(clr redByte). |
|
5846 |
rgbBytes at:index+1 put:(clr greenByte). |
|
5847 |
rgbBytes at:index+2 put:(clr blueByte). |
|
5848 |
||
5849 |
index := index + 3. |
|
| 854 | 5850 |
]. |
5851 |
||
5852 |
pseudoBits := ByteArray uninitializedNew:(width * height). |
|
5853 |
||
5854 |
w := width + 2. |
|
|
1636
c30f6644666e
dont use bcopy in #floydSteinbergDitheredDepth8BitsColors
Claus Gittinger <cg@exept.de>
parents:
1630
diff
changeset
|
5855 |
error := ByteArray new:w*(3*2). |
| 854 | 5856 |
|
5857 |
w := width. |
|
5858 |
h := height. |
|
5859 |
||
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5860 |
idxAndErrRBytes := ByteArray uninitializedNew:256*2. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5861 |
idxAndErrGBytes := ByteArray uninitializedNew:256*2. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5862 |
idxAndErrBBytes := ByteArray uninitializedNew:256*2. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5863 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5864 |
fixGfixB := fixG * fixB. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5865 |
index := 1. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5866 |
0 to:255 do:[:i | |
| 1642 | 5867 |
rgbIDX := (i * (fixR-1) + 128) // 255. "red index rounded" |
5868 |
idxAndErrRBytes at:index put:(rgbIDX * fixGfixB). |
|
5869 |
idxAndErrRBytes at:index+1 put:i - (rgbIDX * 255 // (fixR-1)) + 128. |
|
5870 |
||
5871 |
rgbIDX := (i * (fixG-1) + 128) // 255. "green index rounded" |
|
5872 |
idxAndErrGBytes at:index put:(rgbIDX * fixB). |
|
5873 |
idxAndErrGBytes at:index+1 put:i - (rgbIDX * 255 // (fixG-1)) + 128. |
|
5874 |
||
5875 |
rgbIDX := (i * (fixB-1) + 128) // 255. "blue index rounded" |
|
5876 |
idxAndErrBBytes at:index put:(rgbIDX ). |
|
5877 |
idxAndErrBBytes at:index+1 put:i - (rgbIDX * 255 // (fixB-1)) + 128. |
|
5878 |
index := index + 2. |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5879 |
]. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5880 |
|
| 854 | 5881 |
failed := true. |
5882 |
||
5883 |
%{
|
|
5884 |
int __x, __y; |
|
5885 |
int __eR, __eG, __eB; |
|
5886 |
unsigned char *srcP, *dstP; |
|
5887 |
unsigned char *rgbP; |
|
5888 |
unsigned char *idP; |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
5889 |
unsigned char *__idxAndErrRBytes, *__idxAndErrGBytes, *__idxAndErrBBytes; |
| 854 | 5890 |
short *errP, *eP; |
5891 |
int idx; |
|
5892 |
int __w = __intVal(w); |
|
5893 |
||
5894 |
if (__isByteArray(__INST(bytes)) |
|
5895 |
&& __isByteArray(pseudoBits) |
|
5896 |
&& __isByteArray(rgbBytes) |
|
5897 |
&& __isByteArray(fixIds) |
|
5898 |
&& __isByteArray(error) |
|
5899 |
&& __bothSmallInteger(fixR, fixG) |
|
5900 |
&& __isSmallInteger(fixB)) {
|
|
| 1642 | 5901 |
failed = false; |
5902 |
||
5903 |
srcP = __ByteArrayInstPtr(_INST(bytes))->ba_element; |
|
5904 |
dstP = __ByteArrayInstPtr(pseudoBits)->ba_element; |
|
5905 |
rgbP = __ByteArrayInstPtr(rgbBytes)->ba_element; |
|
5906 |
idP = __ByteArrayInstPtr(fixIds)->ba_element; |
|
5907 |
__idxAndErrRBytes = __ByteArrayInstPtr(idxAndErrRBytes)->ba_element; |
|
5908 |
__idxAndErrGBytes = __ByteArrayInstPtr(idxAndErrGBytes)->ba_element; |
|
5909 |
__idxAndErrBBytes = __ByteArrayInstPtr(idxAndErrBBytes)->ba_element; |
|
5910 |
errP = (short *) _ByteArrayInstPtr(error)->ba_element; |
|
5911 |
||
5912 |
eP = errP; |
|
5913 |
||
5914 |
for (__y=__intVal(h); __y>0; __y--) {
|
|
5915 |
__eR = __eG = __eB = 0; |
|
5916 |
||
5917 |
eP = &(errP[3]); |
|
5918 |
__eR = eP[0]; |
|
5919 |
__eG = eP[1]; |
|
5920 |
__eB = eP[2]; |
|
5921 |
||
5922 |
for (__x=__w; __x>0; __x--) {
|
|
5923 |
int __want; |
|
5924 |
int pix; |
|
5925 |
int idx; |
|
5926 |
int tR, tG, tB; |
|
5927 |
int nR, nG, nB; |
|
5928 |
int iRGB; |
|
5929 |
||
5930 |
pix = *srcP++; |
|
5931 |
||
5932 |
/* |
|
5933 |
* wR, wG and wB is the wanted r/g/b value; |
|
5934 |
*/ |
|
5935 |
pix = pix+pix+pix; /* pix * 3 */ |
|
5936 |
||
5937 |
/* |
|
5938 |
* compute indexR/G/B and the new error: |
|
5939 |
*/ |
|
5940 |
__want = rgbP[pix] + __eR; |
|
5941 |
if (__want > 255) __want = 255; |
|
5942 |
else if (__want < 0) __want = 0; |
|
5943 |
__want += __want; |
|
5944 |
idx = __idxAndErrRBytes[__want]; |
|
5945 |
__eR = __idxAndErrRBytes[__want+1]; |
|
5946 |
__eR -= 128; |
|
5947 |
||
5948 |
__want = rgbP[pix+1] + __eG; |
|
5949 |
if (__want > 255) __want = 255; |
|
5950 |
else if (__want < 0) __want = 0; |
|
5951 |
__want += __want; |
|
5952 |
idx += __idxAndErrGBytes[__want]; |
|
5953 |
__eG = __idxAndErrGBytes[__want+1]; |
|
5954 |
__eG -= 128; |
|
5955 |
||
5956 |
__want = rgbP[pix+2] + __eB; |
|
5957 |
if (__want > 255) __want = 255; |
|
5958 |
else if (__want < 0) __want = 0; |
|
5959 |
__want += __want; |
|
5960 |
idx += __idxAndErrBBytes[__want]; |
|
5961 |
__eB = __idxAndErrBBytes[__want+1]; |
|
5962 |
__eB -= 128; |
|
5963 |
||
5964 |
/* |
|
5965 |
* store the corresponding dither colors colorId |
|
5966 |
*/ |
|
5967 |
*dstP++ = idP[idx]; |
|
5968 |
||
5969 |
/* |
|
5970 |
* distribute the error |
|
5971 |
*/ |
|
5972 |
if (__eR) {
|
|
5973 |
tR = __eR >> 4; /* 16th of error */ |
|
5974 |
nR = eP[3] + (tR * 7);/* from accu: error for (x+1 / y) */ |
|
5975 |
eP[0] = tR*5; /* 5/16th for (x / y+1) */ |
|
5976 |
eP[-3] = tR*3; /* 3/16th for (x-1 / y+1) */ |
|
5977 |
eP[3] = __eR - (tR*15); /* 1/16th for (x+1 / y+1) */ |
|
5978 |
__eR = nR; |
|
5979 |
} else {
|
|
5980 |
__eR = eP[3]; |
|
5981 |
eP[0] = eP[-3] = eP[3] = 0; |
|
5982 |
} |
|
5983 |
||
5984 |
if (__eG) {
|
|
5985 |
tG = __eG >> 4; /* 16th of error */ |
|
5986 |
nG = eP[4] + (tG * 7);/* plus 7/16'th of this error */ |
|
5987 |
eP[1] = tG*5; |
|
5988 |
eP[-2] = tG*3; |
|
5989 |
eP[4] = __eG - (tG*15); |
|
5990 |
__eG = nG; |
|
5991 |
} else {
|
|
5992 |
__eG = eP[4]; |
|
5993 |
eP[1] = eP[-2] = eP[4] = 0; |
|
5994 |
} |
|
5995 |
||
5996 |
if (__eB) {
|
|
5997 |
tB = __eB >> 4; /* 16th of error */ |
|
5998 |
nB = eP[5] + (tB * 7); |
|
5999 |
eP[2] = tB*5; |
|
6000 |
eP[-1] = tB*3; |
|
6001 |
eP[5] = __eB - (tB*15); |
|
6002 |
__eB = nB; |
|
6003 |
} else {
|
|
6004 |
__eB = eP[5]; |
|
6005 |
eP[2] = eP[-1] = eP[5] = 0; |
|
6006 |
} |
|
6007 |
||
6008 |
eP += 3; |
|
6009 |
} |
|
6010 |
} |
|
| 854 | 6011 |
} |
6012 |
%}. |
|
6013 |
failed ifTrue:[ |
|
| 1642 | 6014 |
self primitiveFailed. |
6015 |
^ nil |
|
| 854 | 6016 |
]. |
6017 |
||
6018 |
^ pseudoBits |
|
6019 |
||
6020 |
||
6021 |
! |
|
6022 |
||
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6023 |
floydSteinbergDitheredMonochromeBits |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6024 |
"return the bitmap for a dithered monochrome bitmap from the image. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6025 |
Works for any source depths / photometric, |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6026 |
but very very slow since each pixel is processed individually. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6027 |
Redefined by some subclasses for more performance (D8Image)" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6028 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6029 |
|dstIndex "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6030 |
nextDst "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6031 |
bytesPerMonoRow "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6032 |
monoBits greyValues |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6033 |
errorArray |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6034 |
nextErrorArray |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6035 |
e eD t |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6036 |
w "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6037 |
h "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6038 |
bitCnt "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6039 |
byte "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6040 |
grey dT |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6041 |
eR eRB eB eLB | |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6042 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6043 |
w := width. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6044 |
h := height. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6045 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6046 |
bytesPerMonoRow := (w + 7) // 8. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6047 |
monoBits := ByteArray uninitializedNew:(bytesPerMonoRow * h). |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6048 |
(monoBits isNil or:[bytes isNil]) ifTrue:[ |
| 1642 | 6049 |
^ nil |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6050 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6051 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6052 |
errorArray := Array new:w+2. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6053 |
nextErrorArray := Array new:w+2. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6054 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6055 |
nextErrorArray atAllPut:0. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6056 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6057 |
dstIndex := 1. |
|
828
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6058 |
bitCnt := 8. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6059 |
byte := 0. |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6060 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6061 |
self depth <= 12 ifTrue:[ |
| 1642 | 6062 |
"/ fetch scaled brightness values outside of loop into a table; |
6063 |
"/ use table-value in loop |
|
6064 |
||
6065 |
greyValues := self greyMapForRange:(255 * 1024). |
|
6066 |
greyValues := greyValues collect:[:v | v isNil ifTrue:[ |
|
6067 |
0 |
|
6068 |
] ifFalse:[ |
|
6069 |
v rounded |
|
6070 |
]]. |
|
6071 |
||
6072 |
0 to:(h-1) do:[:y | |
|
6073 |
nextDst := dstIndex + bytesPerMonoRow. |
|
6074 |
||
6075 |
t := errorArray. |
|
6076 |
errorArray := nextErrorArray. |
|
6077 |
nextErrorArray := t. |
|
6078 |
||
6079 |
nextErrorArray atAllPut:0. |
|
6080 |
||
6081 |
self valuesAtY:y from:0 to:(w-1) do:[:x :pixel | |
|
|
828
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6082 |
%{
|
| 1642 | 6083 |
int __grey, __e; |
6084 |
int __byte = __intVal(byte); |
|
6085 |
OBJ *__errorArray = __ArrayInstPtr(errorArray)->a_element; |
|
6086 |
OBJ *__nextErrorArray = __ArrayInstPtr(nextErrorArray)->a_element; |
|
6087 |
int __x = __intVal(x); |
|
6088 |
int __eR, __eB, __eRB, __eLB, __eI; |
|
6089 |
int __bitCnt = __intVal(bitCnt); |
|
6090 |
||
6091 |
__grey = __intVal(__ArrayInstPtr(greyValues)->a_element[__intVal(pixel)]); |
|
6092 |
__grey += __intVal(__errorArray[__x+1]); |
|
|
828
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6093 |
|
| 1642 | 6094 |
__byte <<= 1; |
6095 |
if (__grey > 127*1024) {
|
|
6096 |
__e = __grey - (255*1024); |
|
6097 |
__byte |= 1; |
|
6098 |
} else {
|
|
6099 |
__e = __grey; |
|
6100 |
} |
|
6101 |
if (__e) {
|
|
6102 |
__eI = __e >> 4; |
|
6103 |
__eR = __eI * 7; |
|
6104 |
__eRB = __eI * 1; |
|
6105 |
__eB = __eI * 5; |
|
6106 |
__eLB = __e - __eR - __eRB - __eB; |
|
6107 |
__errorArray[__x+2] = __MKSMALLINT(__intVal(__errorArray[__x+2]) + __eR); |
|
6108 |
__nextErrorArray[__x+2] = __MKSMALLINT(__intVal(__nextErrorArray[__x+2]) + __eRB); |
|
6109 |
__nextErrorArray[__x+1] = __MKSMALLINT(__intVal(__nextErrorArray[__x+1]) + __eB); |
|
6110 |
__nextErrorArray[__x ] = __MKSMALLINT(__intVal(__nextErrorArray[__x ]) + __eLB); |
|
6111 |
||
6112 |
} |
|
6113 |
__bitCnt--; |
|
6114 |
if (__bitCnt == 0) {
|
|
6115 |
int __dstIndex = __intVal(dstIndex); |
|
6116 |
||
6117 |
__ByteArrayInstPtr(monoBits)->ba_element[__dstIndex-1] = __byte; |
|
6118 |
dstIndex = __MKSMALLINT(__dstIndex + 1); |
|
6119 |
__byte = 0; |
|
6120 |
__bitCnt = 8; |
|
6121 |
} |
|
6122 |
byte = __MKSMALLINT(__byte); |
|
6123 |
bitCnt = __MKSMALLINT(__bitCnt); |
|
|
828
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6124 |
%}. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6125 |
|
| 829 | 6126 |
"/ |eI "{ Class: SmallInteger }"
|
6127 |
"/ xE "{ Class: SmallInteger }"
|
|
6128 |
"/ xN "{ Class: SmallInteger }" |
|
|
6129 |
"/ |
|
|
828
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6130 |
"/ "/ get the colors grey value [0 .. 1] |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6131 |
"/ grey := greyValues at:(pixel + 1). |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6132 |
"/ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6133 |
"/ "/ adjust error |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6134 |
"/ xE := x + 2. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6135 |
"/ grey := (grey + (errorArray at:xE)). |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6136 |
"/ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6137 |
"/ byte := byte bitShift:1. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6138 |
"/ grey > (127*1024) ifTrue:[ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6139 |
"/ byte := byte bitOr:1. "/ white |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6140 |
"/ e := grey - (255*1024) |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6141 |
"/ ] ifFalse:[ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6142 |
"/ e := grey "/ black |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6143 |
"/ ]. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6144 |
"/ e ~= 0 ifTrue:[ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6145 |
"/ eD := e. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6146 |
"/ eI := e // 16. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6147 |
"/ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6148 |
"/ eR := eI * 7. "/ 7/16 to right |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6149 |
"/ eRB := eI * 1. "/ 1/16 to right below |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6150 |
"/ eB := eI * 5. "/ 5/16 to below |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6151 |
"/ eLB := eD - eR - eRB - eB. "/ 3/16 to left below |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6152 |
"/ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6153 |
"/ xN := xE + 1. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6154 |
"/ eR ~= 0 ifTrue:[ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6155 |
"/ errorArray at:xN put:(errorArray at:xN) + eR. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6156 |
"/ ]. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6157 |
"/ eRB ~= 0 ifTrue:[ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6158 |
"/ nextErrorArray at:xN put:(nextErrorArray at:xN) + eRB. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6159 |
"/ ]. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6160 |
"/ eB ~= 0 ifTrue:[ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6161 |
"/ nextErrorArray at:xE put:(nextErrorArray at:xE) + eB. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6162 |
"/ ]. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6163 |
"/ eLB ~= 0 ifTrue:[ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6164 |
"/ xN := xE - 1. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6165 |
"/ nextErrorArray at:xN put:(nextErrorArray at:xN) + eLB. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6166 |
"/ ]. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6167 |
"/ ]. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6168 |
"/ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6169 |
"/ bitCnt := bitCnt - 1. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6170 |
"/ bitCnt == 0 ifTrue:[ |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6171 |
"/ monoBits at:dstIndex put:byte. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6172 |
"/ dstIndex := dstIndex + 1. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6173 |
"/ byte := 0. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6174 |
"/ bitCnt := 8. |
|
e5cc03d2c673
integerized floydSteinberg code
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
6175 |
"/ ]. |
| 1642 | 6176 |
0 |
6177 |
]. |
|
6178 |
bitCnt ~~ 8 ifTrue:[ |
|
6179 |
byte := byte bitShift:bitCnt. |
|
6180 |
monoBits at:dstIndex put:byte. |
|
6181 |
bitCnt := 8. |
|
6182 |
byte := 0. |
|
6183 |
]. |
|
6184 |
||
6185 |
dstIndex := nextDst. |
|
6186 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6187 |
] ifFalse:[ |
| 1642 | 6188 |
'Image [info]: slow floydSteinberg dither ..' infoPrintCR. |
6189 |
||
6190 |
0 to:(h-1) do:[:y | |
|
6191 |
nextDst := dstIndex + bytesPerMonoRow. |
|
6192 |
||
6193 |
t := errorArray. |
|
6194 |
errorArray := nextErrorArray. |
|
6195 |
nextErrorArray := t. |
|
6196 |
||
6197 |
nextErrorArray atAllPut:0. |
|
6198 |
||
6199 |
self colorsAtY:y from:0 to:(w-1) do:[:x :clr | |
|
6200 |
|eI "{ Class: SmallInteger }"
|
|
6201 |
xE "{ Class: SmallInteger }"
|
|
6202 |
xN "{ Class: SmallInteger }" |
|
|
6203 |
||
6204 |
"/ get the colors grey value [0 .. 1] |
|
6205 |
grey := (clr brightness * 255). |
|
6206 |
||
6207 |
"/ adjust error |
|
6208 |
xE := x + 2. |
|
6209 |
grey := (grey + (errorArray at:xE)) rounded. |
|
6210 |
||
6211 |
byte := byte bitShift:1. |
|
6212 |
grey > 127 ifTrue:[ |
|
6213 |
byte := byte bitOr:1. "/ white |
|
6214 |
e := grey - 255 |
|
6215 |
] ifFalse:[ |
|
6216 |
e := grey "/ black |
|
6217 |
]. |
|
6218 |
||
6219 |
e ~= 0 ifTrue:[ |
|
6220 |
eD := e. |
|
6221 |
eI := e // 16. |
|
6222 |
eR := eI * 7. "/ 7/16 to right |
|
6223 |
eRB := eI * 1. "/ 1/16 to right below |
|
6224 |
eB := eI * 5. "/ 5/16 to below |
|
6225 |
eLB := eD - eR - eRB - eB. "/ 3/16 to left below |
|
6226 |
||
6227 |
xN := xE + 1. |
|
6228 |
eR ~= 0 ifTrue:[ |
|
6229 |
errorArray at:xN put:(errorArray at:xN) + eR. |
|
6230 |
]. |
|
6231 |
eRB ~= 0 ifTrue:[ |
|
6232 |
nextErrorArray at:xN put:(nextErrorArray at:xN) + eRB. |
|
6233 |
]. |
|
6234 |
eB ~= 0 ifTrue:[ |
|
6235 |
nextErrorArray at:xE put:(nextErrorArray at:xE) + eB. |
|
6236 |
]. |
|
6237 |
eLB ~= 0 ifTrue:[ |
|
6238 |
xN := xE - 1. |
|
6239 |
nextErrorArray at:xN put:(nextErrorArray at:xN) + eLB. |
|
6240 |
]. |
|
6241 |
]. |
|
6242 |
||
6243 |
bitCnt := bitCnt - 1. |
|
6244 |
bitCnt == 0 ifTrue:[ |
|
6245 |
monoBits at:dstIndex put:byte. |
|
6246 |
dstIndex := dstIndex + 1. |
|
6247 |
byte := 0. |
|
6248 |
bitCnt := 8. |
|
6249 |
]. |
|
6250 |
||
6251 |
]. |
|
6252 |
bitCnt ~~ 8 ifTrue:[ |
|
6253 |
byte := byte bitShift:bitCnt. |
|
6254 |
monoBits at:dstIndex put:byte. |
|
6255 |
bitCnt := 8. |
|
6256 |
byte := 0. |
|
6257 |
]. |
|
6258 |
||
6259 |
dstIndex := nextDst. |
|
6260 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6261 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6262 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6263 |
^ monoBits |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6264 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6265 |
"Created: 8.6.1996 / 16:39:46 / cg" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6266 |
"Modified: 10.6.1996 / 15:12:11 / cg" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6267 |
! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6268 |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6269 |
nearestPaintDepth8BitsColors:fixColors nRed:nRed nGreen:nGreen nBlue:nBlue |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6270 |
"return a nearest paint bitmap from the receiver picture, |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6271 |
which must be a depth-8 image. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6272 |
This is a special-cased dither method for 8-bit palette images being displayed on |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6273 |
an 8-bit pseudoColor display, AND fixColor dithering is used. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6274 |
Use the colors in the fixColors array, which must be fixR x fixG x fixB |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6275 |
colors assigned to aDevice, such as the preallocated colors of the |
|
884
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6276 |
Color class." |
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6277 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6278 |
|pseudoBits |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6279 |
fixR "{Class: SmallInteger }"
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6280 |
fixG "{Class: SmallInteger }"
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6281 |
fixB "{Class: SmallInteger }"
|
|
884
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6282 |
fixGfixB |
|
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6283 |
r "{Class: SmallInteger }"
|
|
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6284 |
g "{Class: SmallInteger }"
|
|
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6285 |
b "{Class: SmallInteger }"
|
|
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6286 |
idx "{Class: SmallInteger }"
|
|
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6287 |
idMap lastColor |
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6288 |
clr| |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6289 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6290 |
self depth ~~ 8 ifTrue:[^ nil]. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6291 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6292 |
fixR := nRed. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6293 |
fixR == 0 ifTrue:[ ^ nil]. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6294 |
fixG := nGreen. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6295 |
fixG == 0 ifTrue:[ ^ nil]. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6296 |
fixB := nBlue. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6297 |
fixB == 0 ifTrue:[ ^ nil]. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6298 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6299 |
"/ simple check |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6300 |
(fixR * fixG * fixB) ~~ fixColors size ifTrue:[ |
| 1642 | 6301 |
self error:'invalid color array passed'. |
6302 |
^ nil |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6303 |
]. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6304 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6305 |
"/ |
|
884
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6306 |
"/ collect colorIds |
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6307 |
"/ |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6308 |
photometric == #palette ifTrue:[ |
| 1642 | 6309 |
lastColor := colorMap size - 1 |
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6310 |
] ifFalse:[ |
| 1642 | 6311 |
lastColor := 255. |
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6312 |
]. |
|
884
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6313 |
fixGfixB := fixG * fixB. |
|
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6314 |
|
|
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6315 |
idMap := ByteArray uninitializedNew:256. |
|
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6316 |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6317 |
0 to:lastColor do:[:pix | |
| 1642 | 6318 |
clr := self colorFromValue:pix. |
6319 |
r := clr redByte. |
|
6320 |
g := clr greenByte. |
|
6321 |
b := clr blueByte. |
|
6322 |
idx := ((r * (fixR-1) + 128) // 255) * fixGfixB. |
|
6323 |
idx := idx + (((g * (fixG-1) + 128) // 255) * fixB). |
|
6324 |
idx := idx + ((b * (fixB-1) + 128) // 255). |
|
6325 |
idMap at:(pix+1) put:(fixColors at:(idx+1)) colorId. |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6326 |
]. |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6327 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6328 |
pseudoBits := ByteArray uninitializedNew:(width * height). |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6329 |
|
|
884
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6330 |
"/ translate |
|
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6331 |
|
|
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6332 |
bytes expandPixels:8 "xlate only" |
| 1642 | 6333 |
width:width |
6334 |
height:height |
|
6335 |
into:pseudoBits |
|
6336 |
mapping:idMap. |
|
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6337 |
|
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6338 |
^ pseudoBits |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6339 |
|
|
884
d7cc8a20505b
oops - nearest paint color conversion can be done much faster
Claus Gittinger <cg@exept.de>
parents:
883
diff
changeset
|
6340 |
"Modified: 18.6.1996 / 09:18:09 / cg" |
|
879
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6341 |
! |
|
2adf7645e7e6
added #nearestPaint for fixColor images
Claus Gittinger <cg@exept.de>
parents:
878
diff
changeset
|
6342 |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6343 |
nfloydSteinbergDitheredDepth8BitsColors:colors |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6344 |
"return a floyd-steinberg dithered bitmap from the receiver picture, |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6345 |
which must be a depth-8 image. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6346 |
This method expects an array of colors to be used for dithering |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6347 |
(which need not be a colorCubes colors)." |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6348 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6349 |
|pseudoBits |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6350 |
rgbBytes |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6351 |
ditherRGBBytes ditherColors |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6352 |
w "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6353 |
h "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6354 |
index "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6355 |
numR "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6356 |
numG "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6357 |
numB "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6358 |
bitsR "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6359 |
bitsG "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6360 |
bitsB "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6361 |
maxBits "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6362 |
maskR "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6363 |
maskG "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6364 |
maskB "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6365 |
shR "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6366 |
shG "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6367 |
shB "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6368 |
ditherIds failed map lastColor colorsByDistance qScramble |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6369 |
clrLookup lookupPos cube nCube |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6370 |
dR "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6371 |
dG "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6372 |
dB "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6373 |
iR "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6374 |
iRG "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6375 |
iRGB "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6376 |
clr |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6377 |
rI "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6378 |
gI "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6379 |
bI "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6380 |
maxIDX "{Class: SmallInteger }"
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6381 |
subCubeColorCollection |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6382 |
error |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6383 |
dl "{Class: SmallInteger }"|
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6384 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6385 |
self depth ~~ 8 ifTrue:[^ nil]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6386 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6387 |
"/ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6388 |
"/ collect color components as integer values (for integer arithmetic) |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6389 |
"/ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6390 |
rgbBytes := ByteArray uninitializedNew:256 * 3. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6391 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6392 |
photometric == #palette ifTrue:[ |
| 1642 | 6393 |
lastColor := colorMap size - 1 |
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6394 |
] ifFalse:[ |
| 1642 | 6395 |
lastColor := 255. |
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6396 |
]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6397 |
index := 1. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6398 |
0 to:lastColor do:[:pix | |
| 1642 | 6399 |
clr := self colorFromValue:pix. |
6400 |
rgbBytes at:index put:(clr redByte). |
|
6401 |
rgbBytes at:index+1 put:(clr greenByte). |
|
6402 |
rgbBytes at:index+2 put:(clr blueByte). |
|
6403 |
||
6404 |
index := index + 3. |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6405 |
]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6406 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6407 |
"/ collect valid ditherColors ... |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6408 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6409 |
ditherColors := colors select:[:clr | clr notNil]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6410 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6411 |
"/ collect ditherColor components |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6412 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6413 |
lastColor := ditherColors size. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6414 |
ditherIds := ByteArray uninitializedNew:lastColor. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6415 |
ditherRGBBytes := ByteArray uninitializedNew:(lastColor * 3). |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6416 |
index := 1. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6417 |
1 to:lastColor do:[:pix | |
| 1642 | 6418 |
clr := ditherColors at:pix. |
6419 |
ditherRGBBytes at:index put:(clr redByte). |
|
6420 |
ditherRGBBytes at:index+1 put:(clr greenByte). |
|
6421 |
ditherRGBBytes at:index+2 put:(clr blueByte). |
|
6422 |
ditherIds at:pix put:clr colorId. |
|
6423 |
||
6424 |
index := index + 3. |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6425 |
]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6426 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6427 |
"/ place the ditherColor positions into a color cube |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6428 |
bitsR := 5. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6429 |
bitsG := 6. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6430 |
bitsB := 4. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6431 |
maxBits := 6. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6432 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6433 |
"/ bitsR := 4. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6434 |
"/ bitsG := 4. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6435 |
"/ bitsB := 3. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6436 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6437 |
numR := 1 bitShift:bitsR. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6438 |
numG := 1 bitShift:bitsG. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6439 |
numB := 1 bitShift:bitsB. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6440 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6441 |
maskR := (numR-1) bitShift:(bitsG + bitsB). |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6442 |
maskG := (numG-1) bitShift:bitsB. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6443 |
maskB := numB-1. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6444 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6445 |
shR := -16+bitsR+bitsG+bitsB. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6446 |
shG := -16+bitsG+bitsB. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6447 |
shB := -16+bitsB. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6448 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6449 |
maxIDX := numR*numG*numB. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6450 |
cube := Array new:maxIDX. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6451 |
1 to:lastColor do:[:clrIdx | |
| 1642 | 6452 |
clr := ditherColors at:clrIdx. |
6453 |
rI := clr scaledRed. rI := (rI bitShift:shR) bitAnd:maskR. |
|
6454 |
gI := clr scaledGreen. gI := (gI bitShift:shG) bitAnd:maskG. |
|
6455 |
bI := clr scaledBlue. bI := (bI bitShift:shB) bitAnd:maskB. |
|
6456 |
index := rI + gI + bI + 1. |
|
6457 |
subCubeColorCollection := cube at:index. |
|
6458 |
subCubeColorCollection isNil ifTrue:[ |
|
6459 |
subCubeColorCollection := OrderedCollection new. |
|
6460 |
cube at:index put:subCubeColorCollection. |
|
6461 |
]. |
|
6462 |
subCubeColorCollection add:(clrIdx - 1). |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6463 |
]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6464 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6465 |
shR := 1 bitShift:(bitsG+bitsB). |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6466 |
shG := 1 bitShift:(bitsB). |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6467 |
shB := 1. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6468 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6469 |
1 to:maxIDX do:[:i | |
| 1642 | 6470 |
subCubeColorCollection := cube at:i. |
6471 |
subCubeColorCollection notNil ifTrue:[ |
|
6472 |
cube at:i put:(subCubeColorCollection asByteArray) |
|
6473 |
] |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6474 |
]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6475 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6476 |
"/ nCube := cube copy. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6477 |
"/ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6478 |
"/ cube keysAndValuesDo:[:i :indices | |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6479 |
"/ indices notNil ifTrue:[ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6480 |
"/ nCube at:i put:(indices asByteArray) |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6481 |
"/ ] ifFalse:[ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6482 |
"/ "/ find nearest color |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6483 |
"/ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6484 |
"/ dl := 1. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6485 |
"/ [dl < maxBits] whileTrue:[ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6486 |
"/ dR := dl negated. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6487 |
"/ [dR <= dl] whileTrue:[ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6488 |
"/ iR := i + (dR * shR). |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6489 |
"/ (iR > 0 and:[iR < maxIDX]) ifTrue:[ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6490 |
"/ dG := dl negated. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6491 |
"/ [dG < dl] whileTrue:[ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6492 |
"/ iRG := iR + (dG * shG). |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6493 |
"/ (iRG > 0 and:[iRG < maxIDX]) ifTrue:[ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6494 |
"/ dB := dl negated. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6495 |
"/ [dB < dl] whileTrue:[ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6496 |
"/ iRGB := iRG + dB. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6497 |
"/ (iRG > 0 and:[iRG < maxIDX]) ifTrue:[ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6498 |
"/ (cube at:iRGB) notNil ifTrue:[ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6499 |
"/ nCube at:i put:(cube at:iRGB). |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6500 |
"/ dB := dG := dR := dl := 999. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6501 |
"/ ] |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6502 |
"/ ]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6503 |
"/ dB := dB + 1. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6504 |
"/ ] |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6505 |
"/ ]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6506 |
"/ dG := dG + 1. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6507 |
"/ ] |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6508 |
"/ ]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6509 |
"/ dR := dR + 1. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6510 |
"/ ]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6511 |
"/ dl := dl + 1. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6512 |
"/ ] |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6513 |
"/ ] |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6514 |
"/ ]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6515 |
"/self halt. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6516 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6517 |
"/ now, cube contains collections of colors which are |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6518 |
"/ positioned in a subCube; quickly accessed by a lookup |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6519 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6520 |
pseudoBits := ByteArray uninitializedNew:(width * height). |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6521 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6522 |
w := width. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6523 |
h := height. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6524 |
error := ByteArray new:(w+2)*3*2. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6525 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6526 |
%{
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6527 |
#define BITSR 5 |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6528 |
#define BITSG 6 |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6529 |
#define BITSB 4 |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6530 |
#define MAXBITS 6 |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6531 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6532 |
#define xBITSR 4 |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6533 |
#define xBITSG 4 |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6534 |
#define xBITSB 3 |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6535 |
#define xMAXBITS 4 |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6536 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6537 |
#define NR 32 /* (1<<BITSR) */ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6538 |
#define NG 64 /* (1<<BITSG) */ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6539 |
#define NB 16 /* (1<<BITSB) */ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6540 |
#define MAXRGB 64 /* (1<<MAXBITS) */ |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6541 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6542 |
#define SHR (BITSG+BITSB) |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6543 |
#define SHG BITSB |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6544 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6545 |
#define REMEMBER_SEARCH |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6546 |
#define xNO_FLOYD_STEINBERG |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6547 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6548 |
int __x, __y; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6549 |
int __eR, __eG, __eB; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6550 |
unsigned char *srcP, *dstP; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6551 |
unsigned char *rgbP; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6552 |
unsigned char *idP; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6553 |
unsigned char *dp; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6554 |
short *errP, *eP; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6555 |
int __fR, __fG, __fB; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6556 |
int idx; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6557 |
int __w = __intVal(w); |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6558 |
int __h = __intVal(h); |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6559 |
int __nColors = __intVal(lastColor); |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6560 |
int __wR = -1, __wG, __wB; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6561 |
OBJ *__cube; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6562 |
OBJ subCubeColors; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6563 |
int cubeIndex, cubeIndex2; |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6564 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6565 |
if (__isByteArray(__INST(bytes)) |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6566 |
&& __isByteArray(pseudoBits) |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6567 |
&& __isByteArray(rgbBytes) |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6568 |
&& __isByteArray(ditherRGBBytes) |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6569 |
&& __isByteArray(ditherIds) |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6570 |
&& __isByteArray(error)) {
|
| 1642 | 6571 |
failed = false; |
6572 |
||
6573 |
srcP = __ByteArrayInstPtr(_INST(bytes))->ba_element; |
|
6574 |
dstP = __ByteArrayInstPtr(pseudoBits)->ba_element; |
|
6575 |
rgbP = __ByteArrayInstPtr(rgbBytes)->ba_element; |
|
6576 |
idP = __ByteArrayInstPtr(ditherIds)->ba_element; |
|
6577 |
errP = (short *) __ByteArrayInstPtr(error)->ba_element; |
|
6578 |
__cube = __ArrayInstPtr(cube)->a_element; |
|
6579 |
||
6580 |
eP = errP; |
|
6581 |
||
6582 |
for (__y=__h; __y>0; __y--) {
|
|
6583 |
eP = &(errP[3]); |
|
6584 |
__eR = eP[0]; |
|
6585 |
__eG = eP[1]; |
|
6586 |
__eB = eP[2]; |
|
6587 |
||
6588 |
for (__x=__w; __x>0; __x--) {
|
|
6589 |
int __want; |
|
6590 |
int pix; |
|
6591 |
int __wantR, __wantG, __wantB; |
|
6592 |
int idx; |
|
6593 |
int tR, tG, tB; |
|
6594 |
int nR, nG, nB; |
|
6595 |
int __dR, __dG, __dB; |
|
6596 |
int minDelta, bestIdx; |
|
6597 |
int __iR, __iG, __iB; |
|
6598 |
int cR, cG, cB; |
|
6599 |
int delta; |
|
6600 |
||
6601 |
pix = *srcP++; |
|
6602 |
||
6603 |
/* |
|
6604 |
* wR, wG and wB is the wanted r/g/b value; |
|
6605 |
*/ |
|
6606 |
idx = pix+pix+pix; /* pix * 3 */ |
|
6607 |
||
6608 |
__wR = __wantR = rgbP[idx] + __eR; |
|
6609 |
__wG = __wantG = rgbP[idx+1] + __eG; |
|
6610 |
__wB = __wantB = rgbP[idx+2] + __eB; |
|
6611 |
if(__wR > 255) __wR = 255; |
|
6612 |
else if (__wR < 0) __wR = 0; |
|
6613 |
if(__wG > 255) __wG = 255; |
|
6614 |
else if (__wG < 0) __wG = 0; |
|
6615 |
if(__wB > 255) __wB = 255; |
|
6616 |
else if (__wB < 0) __wB = 0; |
|
6617 |
||
6618 |
__iR = __wR >> (8-BITSR); |
|
6619 |
__iG = __wG >> (8-BITSG); |
|
6620 |
__iB = __wB >> (8-BITSB); |
|
6621 |
||
6622 |
cubeIndex = (__iR<<SHR) + (__iG<<SHG) + __iB; |
|
6623 |
subCubeColors = __cube[cubeIndex]; |
|
6624 |
||
6625 |
if (subCubeColors == nil) {
|
|
6626 |
/* search around in spirals, for the first match */ |
|
6627 |
||
6628 |
delta = 1; |
|
6629 |
while (delta < MAXRGB) {
|
|
6630 |
/* check plane above */ |
|
6631 |
cR = __iR + delta; |
|
6632 |
if ((unsigned)cR < NR) {
|
|
6633 |
for (cG=__iG-delta; cG<=__iG+delta; cG++) {
|
|
6634 |
if ((unsigned)cG < NG) {
|
|
6635 |
for (cB=__iB-delta; cB<=__iB+delta; cB++) {
|
|
6636 |
if ((unsigned)cB < NB) {
|
|
6637 |
cubeIndex2 = (cR<<SHR) + (cG<<SHG) + cB; |
|
6638 |
subCubeColors = __cube[cubeIndex2]; |
|
6639 |
if (__isNonNilObject(subCubeColors)) {
|
|
6640 |
goto found; |
|
6641 |
} |
|
6642 |
} |
|
6643 |
} |
|
6644 |
} |
|
6645 |
} |
|
6646 |
} |
|
6647 |
||
6648 |
/* check plane below */ |
|
6649 |
cR = __iR - delta; |
|
6650 |
if ((unsigned)cR < NR) {
|
|
6651 |
for (cG=__iG-delta; cG<=__iG+delta; cG++) {
|
|
6652 |
if ((unsigned)cG < NG) {
|
|
6653 |
for (cB=__iB-delta; cB<=__iB+delta; cB++) {
|
|
6654 |
if ((unsigned)cB < NB) {
|
|
6655 |
cubeIndex2 = (cR<<SHR) + (cG<<SHG) + cB; |
|
6656 |
subCubeColors = __cube[cubeIndex2]; |
|
6657 |
if (__isNonNilObject(subCubeColors)) {
|
|
6658 |
goto found; |
|
6659 |
} |
|
6660 |
} |
|
6661 |
} |
|
6662 |
} |
|
6663 |
} |
|
6664 |
} |
|
6665 |
||
6666 |
/* check plane to the right */ |
|
6667 |
cG = __iG + delta; |
|
6668 |
if ((unsigned)cG < NG) {
|
|
6669 |
for (cR=__iR-delta+1; cR<=__iR+delta-1; cR++) {
|
|
6670 |
if ((unsigned)cR < NR) {
|
|
6671 |
for (cB=__iB-delta; cB<=__iB+delta; cB++) {
|
|
6672 |
if ((unsigned)cB < NB) {
|
|
6673 |
cubeIndex2 = (cR<<SHR) + (cG<<SHG) + cB; |
|
6674 |
subCubeColors = __cube[cubeIndex2]; |
|
6675 |
if (__isNonNilObject(subCubeColors)) {
|
|
6676 |
goto found; |
|
6677 |
} |
|
6678 |
} |
|
6679 |
} |
|
6680 |
} |
|
6681 |
} |
|
6682 |
} |
|
6683 |
||
6684 |
/* check plane to the left */ |
|
6685 |
cG = __iG - delta; |
|
6686 |
if ((unsigned)cG < NG) {
|
|
6687 |
for (cR=__iR-delta+1; cR<=__iR+delta-1; cR++) {
|
|
6688 |
if ((unsigned)cR < NR) {
|
|
6689 |
for (cB=__iB-delta; cB<=__iB+delta; cB++) {
|
|
6690 |
if ((unsigned)cB < NB) {
|
|
6691 |
cubeIndex2 = (cR<<SHR) + (cG<<SHG) + cB; |
|
6692 |
subCubeColors = __cube[cubeIndex2]; |
|
6693 |
if (__isNonNilObject(subCubeColors)) {
|
|
6694 |
goto found; |
|
6695 |
} |
|
6696 |
} |
|
6697 |
} |
|
6698 |
} |
|
6699 |
} |
|
6700 |
} |
|
6701 |
||
6702 |
/* check plane at back */ |
|
6703 |
cB = __iB + delta; |
|
6704 |
if ((unsigned)cB < NB) {
|
|
6705 |
for (cR=__iR-delta+1; cR<=(__iR+delta-1); cR++) {
|
|
6706 |
if ((unsigned)cR < NR) {
|
|
6707 |
for (cG=__iG-delta+1; cG<=(__iG+delta-1); cG++) {
|
|
6708 |
if ((unsigned)cG < NG) {
|
|
6709 |
cubeIndex2 = (cR<<SHR) + (cG<<SHG) + cB; |
|
6710 |
subCubeColors = __cube[cubeIndex2]; |
|
6711 |
if (__isNonNilObject(subCubeColors)) {
|
|
6712 |
goto found; |
|
6713 |
} |
|
6714 |
} |
|
6715 |
} |
|
6716 |
} |
|
6717 |
} |
|
6718 |
} |
|
6719 |
||
6720 |
/* check plane at front */ |
|
6721 |
cB = __iB - delta; |
|
6722 |
if ((unsigned)cB < NB) {
|
|
6723 |
for (cR=__iR-delta+1; cR<=(__iR+delta-1); cR++) {
|
|
6724 |
if ((unsigned)cR < NR) {
|
|
6725 |
for (cG=__iG-delta+1; cG<=(__iG+delta-1); cG++) {
|
|
6726 |
if ((unsigned)cG < NG) {
|
|
6727 |
cubeIndex2 = (cR<<SHR) + (cG<<SHG) + cB; |
|
6728 |
subCubeColors = __cube[cubeIndex2]; |
|
6729 |
if (__isNonNilObject(subCubeColors)) {
|
|
6730 |
goto found; |
|
6731 |
} |
|
6732 |
} |
|
6733 |
} |
|
6734 |
} |
|
6735 |
} |
|
6736 |
} |
|
6737 |
delta = delta + 1; |
|
6738 |
||
6739 |
if (InterruptPending) {
|
|
6740 |
int d_srcP = srcP - __ByteArrayInstPtr(_INST(bytes))->ba_element; |
|
6741 |
int d_dstP = dstP - __ByteArrayInstPtr(pseudoBits)->ba_element; |
|
6742 |
int d_errP = errP - (short *) __ByteArrayInstPtr(error)->ba_element; |
|
6743 |
||
6744 |
__interrupt__(); |
|
6745 |
||
6746 |
srcP = __ByteArrayInstPtr(_INST(bytes))->ba_element + d_srcP; |
|
6747 |
dstP = __ByteArrayInstPtr(pseudoBits)->ba_element + d_dstP; |
|
6748 |
rgbP = __ByteArrayInstPtr(rgbBytes)->ba_element; |
|
6749 |
idP = __ByteArrayInstPtr(ditherIds)->ba_element; |
|
6750 |
errP = (short *) __ByteArrayInstPtr(error)->ba_element + d_errP; |
|
6751 |
__cube = __ArrayInstPtr(cube)->a_element; |
|
6752 |
} |
|
6753 |
} |
|
6754 |
/* cannot happen - will lead to a segmentation violation ... */ |
|
6755 |
subCubeColors = nil; |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6756 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6757 |
found: |
| 1642 | 6758 |
__iR = cR; |
6759 |
__iG = cG; |
|
6760 |
__iB = cB; |
|
6761 |
bestIdx = __ByteArrayInstPtr(subCubeColors)->ba_element[0]; |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6762 |
#ifdef REMEMBER_SEARCH |
| 1642 | 6763 |
__cube[cubeIndex] = __MKSMALLINT(bestIdx); |
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6764 |
#endif |
| 1642 | 6765 |
} else {
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6766 |
#ifdef REMEMBER_SEARCH |
| 1642 | 6767 |
if (__isSmallInteger(subCubeColors)) {
|
6768 |
bestIdx = __intVal(subCubeColors); |
|
6769 |
} else |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6770 |
#endif |
| 1642 | 6771 |
{
|
6772 |
bestIdx = __ByteArrayInstPtr(subCubeColors)->ba_element[0]; |
|
6773 |
} |
|
6774 |
} |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6775 |
|
| 1642 | 6776 |
/* |
6777 |
* ok, now, we have found a collection of nearby |
|
6778 |
* colors in subCubeColors. |
|
6779 |
* |
|
6780 |
* since the error is at most 1/16 (i.e. roughly 6%), |
|
6781 |
* dont care for searching the best - simply take the |
|
6782 |
* first color found there. |
|
6783 |
* (statistic reduces the error to even a smaller value). |
|
6784 |
* There is no real problem due to that error, since |
|
6785 |
* it will be diffused anyway ... |
|
6786 |
*/ |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6787 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6788 |
#ifndef NO_FLOYD_STEINBERG |
| 1642 | 6789 |
/* |
6790 |
* fetch that colors r/g/b components |
|
6791 |
*/ |
|
6792 |
dp = __ByteArrayInstPtr(ditherRGBBytes)->ba_element; |
|
6793 |
dp += bestIdx * 3; |
|
6794 |
__dR = dp[0]; |
|
6795 |
__dG = dp[1]; |
|
6796 |
__dB = dp[2]; |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6797 |
#endif |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6798 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6799 |
/* |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6800 |
printf("want: %d/%d/%d (%d/%d/%d) got: %d/%d/%d\n",
|
| 1642 | 6801 |
__wantR, __wantG, __wantB, |
6802 |
__wR, __wG, __wB, |
|
6803 |
__dR, __dG, __dB); |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6804 |
*/ |
| 1642 | 6805 |
/* |
6806 |
* store the corresponding dither colors colorId |
|
6807 |
*/ |
|
6808 |
*dstP++ = idP[bestIdx]; |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6809 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6810 |
#ifndef NO_FLOYD_STEINBERG |
| 1642 | 6811 |
/* |
6812 |
* the new error & distribute the error |
|
6813 |
*/ |
|
6814 |
__eR = __wantR - __dR; |
|
6815 |
if (__eR) {
|
|
6816 |
tR = __eR >> 4; /* 16th of error */ |
|
6817 |
nR = eP[3] + (tR * 7);/* from accu: error for (x+1 / y) */ |
|
6818 |
eP[0] = tR*5; /* 5/16th for (x / y+1) */ |
|
6819 |
eP[-3] = tR*3; /* 3/16th for (x-1 / y+1) */ |
|
6820 |
eP[3] = __eR - (tR*15); /* 1/16th for (x+1 / y+1) */ |
|
6821 |
__eR = nR; |
|
6822 |
} else {
|
|
6823 |
__eR = eP[3]; |
|
6824 |
eP[0] = eP[-3] = eP[3] = 0; |
|
6825 |
} |
|
6826 |
||
6827 |
__eG = __wantG - __dG; |
|
6828 |
if (__eG) {
|
|
6829 |
tG = __eG >> 4; |
|
6830 |
nG = eP[4] + (tG * 7);/* plus 7/16'th of this error */ |
|
6831 |
eP[1] = tG*5; |
|
6832 |
eP[-2] = tG*3; |
|
6833 |
eP[4] = __eG - (tG*15); |
|
6834 |
__eG = nG; |
|
6835 |
} else {
|
|
6836 |
__eG = eP[4]; |
|
6837 |
eP[1] = eP[-2] = eP[4] = 0; |
|
6838 |
} |
|
6839 |
||
6840 |
__eB = __wantB - __dB; |
|
6841 |
if (__eB) {
|
|
6842 |
tB = __eB >> 4; |
|
6843 |
nB = eP[5] + (tB * 7); |
|
6844 |
eP[2] = tB*5; |
|
6845 |
eP[-1] = tB*3; |
|
6846 |
eP[5] = __eB - (tB*15); |
|
6847 |
__eB = nB; |
|
6848 |
} else {
|
|
6849 |
__eB = eP[5]; |
|
6850 |
eP[2] = eP[-1] = eP[5] = 0; |
|
6851 |
} |
|
6852 |
||
6853 |
eP += 3; |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6854 |
#endif |
| 1642 | 6855 |
} |
6856 |
} |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6857 |
} |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6858 |
%}. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6859 |
failed ifTrue:[ |
| 1642 | 6860 |
self primitiveFailed. |
6861 |
^ nil |
|
|
903
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6862 |
]. |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6863 |
|
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6864 |
^ pseudoBits |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6865 |
! |
|
fcb45024a286
experimental nfloydSteinberg....
Claus Gittinger <cg@exept.de>
parents:
901
diff
changeset
|
6866 |
|
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
6867 |
orderedDitheredBitsDepth:depth |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
6868 |
"return the bitmap for a dithered depth-bitmap from the image" |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
6869 |
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
6870 |
^ self |
| 1642 | 6871 |
orderedDitheredBitsWithDitherMatrix:(self class orderedDitherMatrixOfSize:8) |
6872 |
ditherWidth:8 |
|
6873 |
depth:depth. |
|
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
6874 |
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
6875 |
"Created: 15.6.1996 / 09:18:04 / cg" |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
6876 |
! |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
6877 |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6878 |
orderedDitheredBitsWithDitherMatrix:ditherMatrix ditherWidth:dW depth:depth |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6879 |
"return the bitmap for a dithered depth-bitmap from the image; |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6880 |
with a constant ditherMatrix, this can be used for thresholding. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6881 |
Works for any source depths / photometric, |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6882 |
but very very slow since each pixel is processed individually. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6883 |
Redefined by some subclasses for more performance (D8Image)" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6884 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6885 |
|f last dH nDither |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6886 |
greyLevels greyValues greyPixels greyErrors |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6887 |
dstIndex "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6888 |
nextDst |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6889 |
bytesPerOutRow "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6890 |
pixelsPerByte "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6891 |
outBits |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6892 |
w "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6893 |
h "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6894 |
bitCnt "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6895 |
byte "{Class: SmallInteger }" |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6896 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6897 |
depth > 8 ifTrue:[ |
| 1642 | 6898 |
'IMAGE: unimplemented orderedDither conversion' errorPrintCR. |
6899 |
^ nil |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6900 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6901 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6902 |
nDither := ditherMatrix size. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6903 |
dH := nDither / dW. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6904 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6905 |
w := width. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6906 |
h := height. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6907 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6908 |
greyLevels := 1 bitShift:depth. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6909 |
pixelsPerByte := 8 / depth. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6910 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6911 |
bytesPerOutRow := (w * depth + 7) // 8. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6912 |
outBits := ByteArray uninitializedNew:(bytesPerOutRow * h). |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6913 |
(outBits isNil or:[bytes isNil]) ifTrue:[ |
| 1642 | 6914 |
^ nil |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6915 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6916 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6917 |
dstIndex := 1. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6918 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6919 |
self bitsPerPixel <= 12 ifTrue:[ |
| 1642 | 6920 |
"/ fetch scaled brightness values outside of loop into a table; |
6921 |
"/ use table-value in loop |
|
6922 |
||
6923 |
greyValues := self greyMapForRange:(greyLevels-1). |
|
6924 |
greyPixels := greyValues collect:[:v | v isNil ifTrue:[ |
|
6925 |
0 |
|
6926 |
] ifFalse:[ |
|
6927 |
v truncated]]. |
|
6928 |
greyPixels := ByteArray withAll:greyPixels. |
|
6929 |
||
6930 |
greyErrors := greyValues collect:[:v | v isNil ifTrue:[ |
|
6931 |
0 |
|
6932 |
] ifFalse:[ |
|
6933 |
((v - v truncated) * nDither) rounded |
|
6934 |
]]. |
|
6935 |
greyErrors := ByteArray withAll:greyErrors. |
|
6936 |
||
6937 |
0 to:(h-1) do:[:y | |
|
6938 |
nextDst := dstIndex + bytesPerOutRow. |
|
6939 |
byte := 0. |
|
6940 |
bitCnt := 8. |
|
6941 |
||
6942 |
self valuesAtY:y from:0 to:(w-1) do:[:x :value | |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6943 |
%{
|
| 1642 | 6944 |
int __dW = __intVal(dW); |
6945 |
int __byte = __intVal(byte); |
|
6946 |
int __value = __intVal(value); |
|
6947 |
int __dT; |
|
6948 |
int __dstIdx; |
|
6949 |
int __pixel, __grey; |
|
6950 |
int __bitCnt = __intVal(bitCnt); |
|
6951 |
unsigned char *__greyPixels = __ByteArrayInstPtr(greyPixels)->ba_element; |
|
6952 |
unsigned char *__greyErrors = __ByteArrayInstPtr(greyErrors)->ba_element; |
|
6953 |
||
6954 |
__pixel = __greyPixels[__value]; |
|
6955 |
__grey = __greyErrors[__value]; |
|
6956 |
||
6957 |
__dT = __ByteArrayInstPtr(ditherMatrix) |
|
6958 |
->ba_element[__intVal(x) % __dW |
|
6959 |
+ (__intVal(y) % __intVal(dH)) * __dW]; |
|
6960 |
||
6961 |
if (__grey > __dT) {
|
|
6962 |
__pixel++; |
|
6963 |
} |
|
6964 |
__byte = (__byte << __intVal(depth)) | __pixel; |
|
6965 |
||
6966 |
__bitCnt = __bitCnt - __intVal(depth); |
|
6967 |
if (__bitCnt == 0) {
|
|
6968 |
__dstIdx = __intVal(dstIndex); |
|
6969 |
__ByteArrayInstPtr(outBits)->ba_element[__dstIdx-1] = __byte; |
|
6970 |
__dstIdx = __dstIdx + 1; |
|
6971 |
dstIndex = __MKSMALLINT(__dstIdx); |
|
6972 |
__byte = 0; |
|
6973 |
__bitCnt = 8; |
|
6974 |
} |
|
6975 |
byte = __MKSMALLINT(__byte); |
|
6976 |
bitCnt = __MKSMALLINT(__bitCnt); |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6977 |
%}. |
| 1642 | 6978 |
0 |
6979 |
||
6980 |
]. |
|
6981 |
bitCnt ~~ 8 ifTrue:[ |
|
6982 |
byte := byte bitShift:bitCnt. |
|
6983 |
outBits at:dstIndex put:byte. |
|
6984 |
]. |
|
6985 |
dstIndex := nextDst. |
|
6986 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6987 |
] ifFalse:[ |
| 1642 | 6988 |
'Image [info]: slow ordered dither ..' infoPrintCR. |
6989 |
||
6990 |
0 to:(h-1) do:[:y | |
|
6991 |
nextDst := dstIndex + bytesPerOutRow. |
|
6992 |
byte := 0. |
|
6993 |
bitCnt := 8. |
|
6994 |
||
6995 |
"/ this is the representaion independent (but slow) |
|
6996 |
"/ inner loop - it extracts colors from the receiver |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
6997 |
|
| 1642 | 6998 |
self colorsAtY:y from:0 to:(w-1) do:[:x :clr | |
6999 |
|dstClr grey dT pixel| |
|
7000 |
||
7001 |
"/ get the colors grey value [0 .. 1] |
|
7002 |
grey := clr brightness. |
|
7003 |
||
7004 |
"/ remap into [0 .. greyLevels-1] |
|
7005 |
grey := grey * (greyLevels-1). |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7006 |
|
| 1642 | 7007 |
"/ get threshold pixel [0 .. greyLevels-1] |
7008 |
||
7009 |
pixel := grey truncated. |
|
7010 |
||
7011 |
"/ compute the error [0..1] |
|
7012 |
grey := grey - pixel. |
|
7013 |
||
7014 |
"/ map into dither space [0 .. nDither] |
|
7015 |
grey := (grey * (nDither)) rounded. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7016 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7017 |
%{
|
| 1642 | 7018 |
int __dW = __intVal(dW); |
7019 |
int __byte = __intVal(byte); |
|
7020 |
int __dT; |
|
7021 |
int __dstIdx; |
|
7022 |
int __pixel; |
|
7023 |
int __bitCnt = __intVal(bitCnt); |
|
7024 |
||
7025 |
__dT = __ByteArrayInstPtr(ditherMatrix) |
|
7026 |
->ba_element[__intVal(x) % __dW |
|
7027 |
+ (__intVal(y) % __intVal(dH)) * __dW]; |
|
7028 |
||
7029 |
__pixel = __intVal(pixel); |
|
7030 |
||
7031 |
if (__intVal(grey) > __dT) {
|
|
7032 |
__pixel++; |
|
7033 |
} |
|
7034 |
__byte = (__byte << __intVal(depth)) | __pixel; |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7035 |
|
| 1642 | 7036 |
__bitCnt = __bitCnt - __intVal(depth); |
7037 |
if (__bitCnt == 0) {
|
|
7038 |
__dstIdx = __intVal(dstIndex); |
|
7039 |
__ByteArrayInstPtr(outBits)->ba_element[__dstIdx-1] = __byte; |
|
7040 |
__dstIdx = __dstIdx + 1; |
|
7041 |
dstIndex = __MKSMALLINT(__dstIdx); |
|
7042 |
__byte = 0; |
|
7043 |
__bitCnt = 8; |
|
7044 |
} |
|
7045 |
byte = __MKSMALLINT(__byte); |
|
7046 |
bitCnt = __MKSMALLINT(__bitCnt); |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7047 |
%}. |
| 1642 | 7048 |
0 |
7049 |
||
7050 |
]. |
|
7051 |
bitCnt ~~ 8 ifTrue:[ |
|
7052 |
byte := byte bitShift:bitCnt. |
|
7053 |
outBits at:dstIndex put:byte. |
|
7054 |
]. |
|
7055 |
dstIndex := nextDst. |
|
7056 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7057 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7058 |
^ outBits |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7059 |
! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7060 |
|
| 831 | 7061 |
orderedDitheredMonochromeBits |
7062 |
"return the bitmap for a dithered monochrome bitmap from the image; |
|
7063 |
using a default ditherMatrix." |
|
7064 |
||
7065 |
^ self |
|
| 1642 | 7066 |
orderedDitheredMonochromeBitsWithDitherMatrix:(self class orderedDitherMatrixOfSize:8) |
7067 |
ditherWidth:8 |
|
| 831 | 7068 |
|
7069 |
"Created: 11.6.1996 / 16:48:57 / cg" |
|
7070 |
! |
|
7071 |
||
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7072 |
orderedDitheredMonochromeBitsWithDitherMatrix:ditherMatrix ditherWidth:dW |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7073 |
"return the bitmap for a dithered monochrome bitmap from the image; |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7074 |
with a constant ditherMatrix, this can be used for thresholding. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7075 |
Works for any source depths / photometric, |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7076 |
but very very slow since each pixel is processed individually. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7077 |
Redefined by some subclasses for more performance (D8Image)" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7078 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7079 |
|f last dH nDither |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7080 |
greyValues |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7081 |
dstIndex "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7082 |
nextDst "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7083 |
bytesPerMonoRow "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7084 |
monoBits |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7085 |
w "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7086 |
h "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7087 |
bitCnt "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7088 |
byte "{Class: SmallInteger }" |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7089 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7090 |
nDither := ditherMatrix size. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7091 |
dH := nDither / dW. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7092 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7093 |
w := width. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7094 |
h := height. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7095 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7096 |
bytesPerMonoRow := (w + 7) // 8. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7097 |
monoBits := ByteArray uninitializedNew:(bytesPerMonoRow * h). |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7098 |
(monoBits isNil or:[bytes isNil]) ifTrue:[ |
| 1642 | 7099 |
^ nil |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7100 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7101 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7102 |
dstIndex := 1. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7103 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7104 |
self bitsPerPixel <= 12 ifTrue:[ |
| 1642 | 7105 |
"/ fetch scaled brightness values outside of loop into a table; |
7106 |
"/ use table-value in loop |
|
7107 |
||
7108 |
greyValues := self greyByteMapForRange:nDither. |
|
7109 |
||
7110 |
0 to:(h-1) do:[:y | |
|
7111 |
nextDst := dstIndex + bytesPerMonoRow. |
|
7112 |
byte := 0. |
|
7113 |
bitCnt := 8. |
|
7114 |
self valuesAtY:y from:0 to:(w-1) do:[:x :value | |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7115 |
%{
|
| 1642 | 7116 |
int __dW = __intVal(dW); |
7117 |
int __byte = __intVal(byte); |
|
7118 |
int __dT; |
|
7119 |
int __dstIdx; |
|
7120 |
int __bitCnt = __intVal(bitCnt); |
|
7121 |
int __grey; |
|
7122 |
unsigned char *__greyValues = __ByteArrayInstPtr(greyValues)->ba_element; |
|
7123 |
||
7124 |
__grey = __greyValues[__intVal(value)]; |
|
7125 |
||
7126 |
__dT = __ByteArrayInstPtr(ditherMatrix) |
|
7127 |
->ba_element[__intVal(x) % __dW |
|
7128 |
+ (__intVal(y) % __intVal(dH)) * __dW]; |
|
7129 |
||
7130 |
__byte = __byte << 1; |
|
7131 |
if (__grey > __dT) {
|
|
7132 |
__byte = __byte | 1; /* white */ |
|
7133 |
} |
|
7134 |
__bitCnt = __bitCnt - 1; |
|
7135 |
if (__bitCnt == 0) {
|
|
7136 |
__dstIdx = __intVal(dstIndex); |
|
7137 |
__ByteArrayInstPtr(monoBits)->ba_element[__dstIdx-1] = __byte; |
|
7138 |
__dstIdx = __dstIdx + 1; |
|
7139 |
dstIndex = __MKSMALLINT(__dstIdx); |
|
7140 |
__byte = 0; |
|
7141 |
__bitCnt = 8; |
|
7142 |
} |
|
7143 |
byte = __MKSMALLINT(__byte); |
|
7144 |
bitCnt = __MKSMALLINT(__bitCnt); |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7145 |
%}. |
| 1642 | 7146 |
0 |
7147 |
]. |
|
7148 |
bitCnt ~~ 8 ifTrue:[ |
|
7149 |
byte := byte bitShift:bitCnt. |
|
7150 |
monoBits at:dstIndex put:byte. |
|
7151 |
]. |
|
7152 |
dstIndex := nextDst. |
|
7153 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7154 |
] ifFalse:[ |
| 1642 | 7155 |
'Image [info]: slow ordered dither ..' infoPrintCR. |
7156 |
||
7157 |
0 to:(h-1) do:[:y | |
|
7158 |
nextDst := dstIndex + bytesPerMonoRow. |
|
7159 |
byte := 0. |
|
7160 |
bitCnt := 8. |
|
7161 |
self colorsAtY:y from:0 to:(w-1) do:[:x :clr | |
|
7162 |
|dstClr grey dT| |
|
7163 |
||
7164 |
"/ get the colors grey value [0 .. 1] |
|
7165 |
grey := clr brightness. |
|
7166 |
||
7167 |
"/ map into dither space [0 .. nDither] |
|
7168 |
grey := (grey * (nDither)) rounded. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7169 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7170 |
%{
|
| 1642 | 7171 |
int __dW = __intVal(dW); |
7172 |
int __byte = __intVal(byte); |
|
7173 |
int __dT; |
|
7174 |
int __dstIdx; |
|
7175 |
int __bitCnt = __intVal(bitCnt); |
|
7176 |
||
7177 |
__dT = __ByteArrayInstPtr(ditherMatrix) |
|
7178 |
->ba_element[__intVal(x) % __dW |
|
7179 |
+ (__intVal(y) % __intVal(dH)) * __dW]; |
|
7180 |
||
7181 |
__byte = __byte << 1; |
|
7182 |
if (__intVal(grey) > __dT) {
|
|
7183 |
__byte = __byte | 1; /* white */ |
|
7184 |
} |
|
7185 |
__bitCnt = __bitCnt - 1; |
|
7186 |
if (__bitCnt == 0) {
|
|
7187 |
__dstIdx = __intVal(dstIndex); |
|
7188 |
__ByteArrayInstPtr(monoBits)->ba_element[__dstIdx-1] = __byte; |
|
7189 |
__dstIdx = __dstIdx + 1; |
|
7190 |
dstIndex = __MKSMALLINT(__dstIdx); |
|
7191 |
__byte = 0; |
|
7192 |
__bitCnt = 8; |
|
7193 |
} |
|
7194 |
byte = __MKSMALLINT(__byte); |
|
7195 |
bitCnt = __MKSMALLINT(__bitCnt); |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7196 |
%}. |
| 1642 | 7197 |
0 |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7198 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7199 |
"/ dT := ditherMatrix at:(x \\ dW) + (y \\ dH * dW) + 1. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7200 |
"/ |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7201 |
"/ byte := byte bitShift:1. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7202 |
"/ grey < dT ifTrue:[ |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7203 |
"/ byte := byte bitOr:1. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7204 |
"/ ]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7205 |
"/ bitCnt := bitCnt - 1. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7206 |
"/ bitCnt == 0 ifTrue:[ |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7207 |
"/ monoBits at:dstIndex put:byte. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7208 |
"/ dstIndex := dstIndex + 1. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7209 |
"/ byte := 0. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7210 |
"/ bitCnt := 8. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7211 |
"/ ]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7212 |
|
| 1642 | 7213 |
]. |
7214 |
bitCnt ~~ 8 ifTrue:[ |
|
7215 |
byte := byte bitShift:bitCnt. |
|
7216 |
monoBits at:dstIndex put:byte. |
|
7217 |
]. |
|
7218 |
dstIndex := nextDst. |
|
7219 |
]. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7220 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7221 |
^ monoBits |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7222 |
! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7223 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7224 |
stevensonArceDitheredMonochromeBits |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7225 |
"return the bitmap for a dithered monochrome bitmap from the image. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7226 |
Works for any source depths / photometric" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7227 |
|
| 1063 | 7228 |
|dstIndex "{Class: SmallInteger }"
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7229 |
nextDst "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7230 |
bytesPerMonoRow "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7231 |
monoBits greyValues |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7232 |
errorArray |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7233 |
errorArray1 errorArray2 errorArray3 |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7234 |
e t |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7235 |
w "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7236 |
h "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7237 |
bitCnt "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7238 |
byte "{Class: SmallInteger }"
|
| 1063 | 7239 |
grey |
7240 |
xE "{Class: SmallInteger }" |
|
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7241 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7242 |
self depth > 12 ifTrue:[ |
| 1642 | 7243 |
^ self floydSteinbergDitheredMonochromeBits |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7244 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7245 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7246 |
w := width. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7247 |
h := height. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7248 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7249 |
bytesPerMonoRow := (w + 7) // 8. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7250 |
monoBits := ByteArray uninitializedNew:(bytesPerMonoRow * h). |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7251 |
(monoBits isNil or:[bytes isNil]) ifTrue:[ |
| 1642 | 7252 |
^ nil |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7253 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7254 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7255 |
errorArray := Array new:(w+6). |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7256 |
errorArray1 := Array new:(w+6) withAll:0. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7257 |
errorArray2 := Array new:(w+6) withAll:0. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7258 |
errorArray3 := Array new:(w+6) withAll:0. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7259 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7260 |
dstIndex := 1. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7261 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7262 |
"/ fetch scaled brightness values outside of loop into a table; |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7263 |
"/ use table-value in loop |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7264 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7265 |
greyValues := self greyMapForRange:(255 * 1024). |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7266 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7267 |
0 to:(h-1) do:[:y | |
| 1642 | 7268 |
nextDst := dstIndex + bytesPerMonoRow. |
7269 |
byte := 0. |
|
7270 |
bitCnt := 8. |
|
7271 |
||
7272 |
t := errorArray. |
|
7273 |
errorArray := errorArray1. |
|
7274 |
errorArray1 := errorArray2. |
|
7275 |
errorArray2 := errorArray3. |
|
7276 |
errorArray3 := t. |
|
7277 |
||
7278 |
errorArray3 atAllPut:0. |
|
7279 |
||
7280 |
self valuesAtY:y from:0 to:(w-1) do:[:x :pixel | |
|
7281 |
|eP eD| |
|
7282 |
||
7283 |
"/ get the colors grey value [0 .. 1] |
|
7284 |
grey := greyValues at:(pixel + 1). |
|
7285 |
||
7286 |
"/ adjust error |
|
7287 |
xE := x + 3 + 1. |
|
7288 |
grey := (grey + (errorArray at:xE)). |
|
7289 |
||
7290 |
byte := byte bitShift:1. |
|
7291 |
grey > (127 * 1024) ifTrue:[ |
|
7292 |
byte := byte bitOr:1. "/ white |
|
7293 |
e := grey - (255 * 1024) |
|
7294 |
] ifFalse:[ |
|
7295 |
e := grey "/ black |
|
7296 |
]. |
|
7297 |
||
7298 |
e ~= 0 ifTrue:[ |
|
7299 |
"/ distribute the error: |
|
7300 |
"/ XX 32 |
|
7301 |
"/ 12 26 30 16 |
|
7302 |
"/ 12 26 12 |
|
7303 |
"/ 5 12 12 5 |
|
7304 |
||
7305 |
eD := e. |
|
7306 |
e := e // 200. |
|
7307 |
||
7308 |
eP := e * 32. eD := eD - eP. |
|
7309 |
errorArray at:xE+2 put:(errorArray at:xE+2) + eP. |
|
7310 |
||
7311 |
eP := e * 30. eD := eD - eP. |
|
7312 |
errorArray1 at:xE+1 put:(errorArray1 at:xE+1) + eP. |
|
7313 |
||
7314 |
eP := e * 16. eD := eD - eP. |
|
7315 |
errorArray1 at:xE+3 put:(errorArray1 at:xE+3) + eP. |
|
7316 |
||
7317 |
eP := e * 26. eD := eD - eP. |
|
7318 |
errorArray1 at:xE-1 put:(errorArray1 at:xE-1) + eP. |
|
7319 |
||
7320 |
eD := eD - eP. |
|
7321 |
errorArray2 at:xE put:(errorArray2 at:xE) + eP. |
|
7322 |
||
7323 |
eP := e * 12. eD := eD - eP. |
|
7324 |
errorArray1 at:xE-3 put:(errorArray1 at:xE-3) + eP. |
|
7325 |
||
7326 |
eD := eD - eP. |
|
7327 |
errorArray2 at:xE-2 put:(errorArray2 at:xE-2) + eP. |
|
7328 |
||
7329 |
eD := eD - eP. |
|
7330 |
errorArray2 at:xE+2 put:(errorArray2 at:xE+2) + eP. |
|
7331 |
||
7332 |
eD := eD - eP. |
|
7333 |
errorArray3 at:xE-1 put:(errorArray3 at:xE-1) + eP. |
|
7334 |
||
7335 |
eD := eD - eP. |
|
7336 |
errorArray3 at:xE+1 put:(errorArray3 at:xE+1) + eP. |
|
7337 |
||
7338 |
eP := e * 5. eD := eD - eP. |
|
7339 |
errorArray3 at:xE-3 put:(errorArray3 at:xE-3) + eP. |
|
7340 |
||
7341 |
eP := eD. |
|
7342 |
errorArray3 at:xE+3 put:(errorArray3 at:xE+3) + eP. |
|
7343 |
]. |
|
7344 |
||
7345 |
bitCnt := bitCnt - 1. |
|
7346 |
bitCnt == 0 ifTrue:[ |
|
7347 |
monoBits at:dstIndex put:byte. |
|
7348 |
dstIndex := dstIndex + 1. |
|
7349 |
byte := 0. |
|
7350 |
bitCnt := 8. |
|
7351 |
]. |
|
7352 |
||
7353 |
]. |
|
7354 |
bitCnt ~~ 8 ifTrue:[ |
|
7355 |
byte := byte bitShift:bitCnt. |
|
7356 |
monoBits at:dstIndex put:byte. |
|
7357 |
]. |
|
7358 |
||
7359 |
dstIndex := nextDst. |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7360 |
]. |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7361 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7362 |
^ monoBits |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7363 |
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7364 |
"Created: 10.6.1996 / 12:38:35 / cg" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7365 |
"Modified: 10.6.1996 / 12:52:20 / cg" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7366 |
! ! |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7367 |
|
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7368 |
!Image methodsFor:'drawing'! |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7369 |
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7370 |
fillRectangleX:x y:y width:w height:h with:aColor |
| 1630 | 7371 |
"fill a rectangular area with a color" |
7372 |
||
7373 |
|pixel| |
|
7374 |
||
7375 |
pixel := self valueFromColor:aColor. |
|
7376 |
self fillRectangleX:x y:y width:w height:h withValue:pixel |
|
7377 |
||
7378 |
"Modified: 22.4.1997 / 14:02:50 / cg" |
|
7379 |
! |
|
7380 |
||
7381 |
fillRectangleX:x y:y width:w height:h withValue:aPixelValue |
|
7382 |
"fill a rectangular area with some pixel value. |
|
7383 |
May be redefined in concrete subclasses for more performance, if req'd." |
|
7384 |
||
7385 |
|xI "{ Class: SmallInteger }"
|
|
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7386 |
yI "{ Class: SmallInteger }"
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7387 |
wI "{ Class: SmallInteger }"
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7388 |
hI "{ Class: SmallInteger }"|
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7389 |
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7390 |
xI := x. |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7391 |
yI := y. |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7392 |
wI := w. |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7393 |
hI := h. |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7394 |
|
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7395 |
yI to:yI+hI-1 do:[:yRun | |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7396 |
xI to:xI+wI-1 do:[:xRun | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7397 |
self pixelAtX:xRun y:yRun put:aPixelValue |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7398 |
] |
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7399 |
] |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7400 |
|
| 1630 | 7401 |
"Created: 22.4.1997 / 14:02:14 / cg" |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7402 |
"Modified: 24.4.1997 / 17:24:58 / cg" |
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7403 |
! ! |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
7404 |
|
| 283 | 7405 |
!Image methodsFor:'enumerating'! |
7406 |
||
7407 |
atY:y from:x1 to:x2 do:aBlock |
|
7408 |
"perform aBlock for each pixel from x1 to x2 in row y. |
|
7409 |
The block is passed the color at each pixel. |
|
7410 |
The code here provides a generic and slow implementation, and |
|
7411 |
should be redefined in concrete subclasses, to avoid some processing |
|
7412 |
when going from pixel to pixel (i.e. the byte-index and mask computations |
|
7413 |
and also the color allocation)." |
|
7414 |
||
| 798 | 7415 |
self obsoleteMethodWarning:'use #colorsAtY:from:to:do:'. |
7416 |
self colorsAtY:y from:x1 to:x2 do:aBlock |
|
7417 |
||
7418 |
"Modified: 7.6.1996 / 19:13:30 / cg" |
|
7419 |
! |
|
7420 |
||
7421 |
colorsAtY:y from:x1 to:x2 do:aBlock |
|
7422 |
"perform aBlock for each pixel from x1 to x2 in row y. |
|
7423 |
The block is passed the color at each pixel. |
|
7424 |
The code here provides a generic and slow implementation, and |
|
7425 |
should be redefined in concrete subclasses, to avoid some processing |
|
7426 |
when going from pixel to pixel (i.e. the byte-index and mask computations |
|
7427 |
and also the color allocation)." |
|
7428 |
||
| 283 | 7429 |
|xStart "{Class: SmallInteger }"
|
7430 |
xEnd "{Class: SmallInteger }"|
|
|
7431 |
||
7432 |
xStart := x1. |
|
7433 |
xEnd := x2. |
|
7434 |
xStart to:xEnd do:[:xRun | |
|
| 1642 | 7435 |
aBlock value:xRun value:(self atX:xRun y:y) |
| 283 | 7436 |
] |
| 798 | 7437 |
|
7438 |
"Created: 7.6.1996 / 19:12:51 / cg" |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
7439 |
"Modified: 10.6.1996 / 10:27:29 / cg" |
| 283 | 7440 |
! |
7441 |
||
7442 |
colorsFromX:xStart y:yStart toX:xEnd y:yEnd do:aBlock |
|
7443 |
"perform aBlock for each color in a rectangular area of the image. |
|
7444 |
Notice, that x and y coordinates start at 0@0 for the upper left corner. |
|
7445 |
The block is passed the x and y coordinates and pixelValue at each pixel. |
|
7446 |
The code here provides a generic and slow implementation, and |
|
7447 |
should be redefined in concrete subclasses, to avoid some processing |
|
7448 |
when going from pixel to pixel (i.e. the byte-index and mask computations, |
|
7449 |
and especially, the color allocations)." |
|
7450 |
||
| 940 | 7451 |
|yS "{Class: SmallInteger }"
|
| 942 | 7452 |
yE "{Class: SmallInteger }"
|
7453 |
yR| |
|
7454 |
||
7455 |
yS := yStart. |
|
7456 |
yE := yEnd. |
|
| 940 | 7457 |
|
7458 |
yS to:yE do:[:yRun | |
|
| 942 | 7459 |
yR := yRun. |
| 1642 | 7460 |
self colorsAtY:yRun from:xStart to:xEnd do:[:xRun :color | |
7461 |
aBlock value:xRun value:yR value:color |
|
7462 |
] |
|
| 283 | 7463 |
] |
| 798 | 7464 |
|
| 940 | 7465 |
"Modified: 11.7.1996 / 19:50:47 / cg" |
| 283 | 7466 |
! |
7467 |
||
7468 |
valueAtY:y from:x1 to:x2 do:aBlock |
|
7469 |
"perform aBlock for each pixelValue from x1 to x2 in row y. |
|
| 798 | 7470 |
Obsolete - remains for backward compatibility." |
7471 |
||
7472 |
self obsoleteMethodWarning:'use #valuesAtY:from:to:do:'. |
|
7473 |
self valuesAtY:y from:x1 to:x2 do:aBlock |
|
7474 |
||
7475 |
"Modified: 7.6.1996 / 19:11:06 / cg" |
|
7476 |
! |
|
7477 |
||
7478 |
valuesAtY:y from:x1 to:x2 do:aBlock |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7479 |
"WARNING: for now, this enumerates pixel values |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7480 |
(backward compatibility with ST/X) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7481 |
In the future, this will enumerate colors |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7482 |
Use #pixelAtT:from:to:do: - for future compatibility. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7483 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7484 |
perform aBlock for each pixelValue from x1 to x2 in row y. |
| 283 | 7485 |
Notice, that x and y coordinates start at 0@0 for the upper left corner. |
7486 |
The block is passed the x coordinate and the pixelValue at each pixel. |
|
7487 |
(see also Image>>atY:from:to:do:). |
|
7488 |
The code here provides a generic and slow implementation, and |
|
7489 |
should be redefined in concrete subclasses, to avoid some processing |
|
7490 |
when going from pixel to pixel (i.e. the byte-index and mask computations)." |
|
7491 |
||
7492 |
|xStart "{Class: SmallInteger }"
|
|
7493 |
xEnd "{Class: SmallInteger }"|
|
|
7494 |
||
7495 |
xStart := x1. |
|
7496 |
xEnd := x2. |
|
7497 |
xStart to:xEnd do:[:xRun | |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7498 |
aBlock value:xRun value:(self pixelAtX:xRun y:y) |
| 283 | 7499 |
] |
| 692 | 7500 |
|
| 798 | 7501 |
"Created: 7.6.1996 / 19:09:51 / cg" |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7502 |
"Modified: 24.4.1997 / 16:55:38 / cg" |
| 283 | 7503 |
! |
7504 |
||
7505 |
valuesFromX:xStart y:yStart toX:xEnd y:yEnd do:aBlock |
|
7506 |
"perform aBlock for each pixelValue in a rectangular area of the image. |
|
7507 |
Notice, that x and y coordinates start at 0@0 for the upper left corner. |
|
7508 |
The block is passed the x and y coordinates and pixelValue at each pixel. |
|
7509 |
The code here provides a generic and slow implementation, and |
|
7510 |
should be redefined in concrete subclasses, to avoid some processing |
|
7511 |
when going from pixel to pixel (i.e. the byte-index and mask computations)." |
|
7512 |
||
7513 |
|xS "{Class: SmallInteger }"
|
|
7514 |
xE "{Class: SmallInteger }"|
|
|
7515 |
||
7516 |
xS := xStart. |
|
7517 |
xE := xEnd. |
|
7518 |
yStart to:yEnd do:[:yRun | |
|
| 1642 | 7519 |
self valuesAtY:yRun from:xStart to:xEnd do:[:xRun :pixel | |
7520 |
aBlock value:xRun value:yRun value:pixel |
|
7521 |
] |
|
| 283 | 7522 |
] |
| 798 | 7523 |
|
7524 |
"Modified: 7.6.1996 / 19:09:29 / cg" |
|
| 0 | 7525 |
! ! |
7526 |
||
7527 |
!Image methodsFor:'image manipulations'! |
|
7528 |
||
| 1570 | 7529 |
applyPixelValuesTo:pixelFunctionBlock into:newImage |
7530 |
"helper for withPixelFunctionAppliedToValues: |
|
7531 |
enumerate pixelValues and evaluate the block for each. |
|
7532 |
To be redefined by subclasses for better performance." |
|
7533 |
||
7534 |
|w "{Class: SmallInteger }"
|
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7535 |
h "{Class: SmallInteger }"
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7536 |
newPixel newPixelRow pixelRow| |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7537 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7538 |
w := width. |
| 1570 | 7539 |
h := height - 1. |
7540 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7541 |
newPixelRow := Array new:width. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7542 |
pixelRow := self pixelArraySpecies new:width. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7543 |
|
| 1570 | 7544 |
0 to:h do:[:y | |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7545 |
self rowAt:y into:pixelRow. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7546 |
1 to:w do:[:col | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7547 |
newPixel := pixelFunctionBlock |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7548 |
value:self |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7549 |
value:(pixelRow at:col) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7550 |
value:(col-1) |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7551 |
value:y. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7552 |
newPixelRow at:col put:newPixel. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7553 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7554 |
newImage rowAt:y putAll:newPixelRow |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7555 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7556 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7557 |
"Modified: 24.4.1997 / 16:18:31 / cg" |
| 1570 | 7558 |
! |
7559 |
||
| 283 | 7560 |
colorMapProcessing:aBlock |
7561 |
"a helper for all kinds of colormap manipulations. |
|
| 592 | 7562 |
The argument, aBlock is called for every colormap entry, |
7563 |
and the returned value will replace the original entry in the map. |
|
| 283 | 7564 |
This will fail for non-palette images. |
| 592 | 7565 |
See examples in Image>>copyWithColorMapProcessing:" |
| 283 | 7566 |
|
7567 |
|nColors "{ Class: SmallInteger }"|
|
|
7568 |
||
7569 |
colorMap isNil ifTrue:[ |
|
| 1642 | 7570 |
^ self error:'image has no colormap' |
| 283 | 7571 |
]. |
7572 |
||
7573 |
nColors := colorMap size. |
|
7574 |
1 to:nColors do:[:index | |
|
| 1642 | 7575 |
|clr| |
7576 |
||
7577 |
clr := colorMap at:index. |
|
7578 |
clr notNil ifTrue:[ |
|
7579 |
colorMap at:index put:(aBlock value:clr) |
|
7580 |
] |
|
| 283 | 7581 |
] |
| 592 | 7582 |
|
7583 |
"Modified: 23.4.1996 / 11:13:55 / cg" |
|
| 283 | 7584 |
! |
7585 |
||
| 89 | 7586 |
copyWithColorMapProcessing:aBlock |
| 81 | 7587 |
"a helper to create & return new images based on the receiver with |
| 89 | 7588 |
some colorMap processing. The receiver is copied, and the copied images |
7589 |
colormap is modified by replacing entries with the result of the processing block, |
|
7590 |
which is called with the original color values. The block is supposed to return |
|
7591 |
a color." |
|
| 81 | 7592 |
|
7593 |
|newImage| |
|
7594 |
||
7595 |
newImage := self copy. |
|
7596 |
newImage colorMap isNil ifTrue:[ |
|
7597 |
self error:'no colormap in image'. |
|
7598 |
^ nil |
|
7599 |
]. |
|
7600 |
||
7601 |
" |
|
7602 |
the code below manipulates the colormap. |
|
7603 |
For non-palette images, special code is required |
|
7604 |
" |
|
| 89 | 7605 |
newImage colorMapProcessing:aBlock. |
| 81 | 7606 |
^ newImage |
7607 |
||
7608 |
" |
|
7609 |
leave red component only: |
|
7610 |
||
7611 |
(Image fromFile:'bitmaps/claus.gif') |
|
| 89 | 7612 |
copyWithColorMapProcessing:[:clr | Color red:(clr red) green:0 blue:0] |
| 81 | 7613 |
" |
| 89 | 7614 |
|
| 81 | 7615 |
" |
7616 |
make it reddish: |
|
7617 |
||
7618 |
(Image fromFile:'bitmaps/claus.gif') |
|
| 89 | 7619 |
copyWithColorMapProcessing:[:clr | Color red:((clr red * 2) min:100) green:clr green blue:clr blue] |
| 81 | 7620 |
" |
| 89 | 7621 |
|
| 81 | 7622 |
" |
7623 |
invert: |
|
7624 |
||
7625 |
(Image fromFile:'bitmaps/claus.gif') |
|
| 89 | 7626 |
copyWithColorMapProcessing:[:clr | Color red:(100 - clr red) green:(100 - clr green) blue:(100 - clr green)] |
| 81 | 7627 |
" |
| 89 | 7628 |
|
| 81 | 7629 |
" |
7630 |
lighter: |
|
7631 |
||
7632 |
(Image fromFile:'bitmaps/claus.gif') |
|
| 89 | 7633 |
copyWithColorMapProcessing:[:clr | |r g b| |
7634 |
r := clr red. g := clr green. b := clr blue. |
|
7635 |
Color red:(r + (100-r//2)) |
|
7636 |
green:(g + (100-g//2)) |
|
7637 |
blue:(b + (100-b//2))] |
|
| 81 | 7638 |
" |
| 89 | 7639 |
|
| 81 | 7640 |
" |
7641 |
darker: |
|
7642 |
||
7643 |
(Image fromFile:'bitmaps/claus.gif') |
|
| 89 | 7644 |
copyWithColorMapProcessing:[:clr | Color red:(clr red//2) green:(clr green // 2) blue:(clr blue // 2)] |
| 81 | 7645 |
" |
7646 |
! |
|
7647 |
||
| 283 | 7648 |
darkened |
7649 |
"return a new image which is slightly darker than the receiver. |
|
7650 |
The receiver must be a palette image (currently). |
|
| 592 | 7651 |
CAVEAT: Need an argument, which specifies by how much it should be darker." |
| 283 | 7652 |
|
7653 |
^ self |
|
| 1642 | 7654 |
copyWithColorMapProcessing:[:clr | clr darkened] |
| 283 | 7655 |
|
7656 |
" |
|
7657 |
(Image fromFile:'bitmaps/claus.gif') inspect |
|
7658 |
(Image fromFile:'bitmaps/claus.gif') darkened inspect |
|
7659 |
" |
|
| 592 | 7660 |
|
7661 |
"Modified: 23.4.1996 / 11:14:34 / cg" |
|
| 283 | 7662 |
! |
7663 |
||
| 1646 | 7664 |
easyRotateBitsInto:destinationImage angle:degrees |
7665 |
"helper for rotation - does the actual pixel shuffling. |
|
7666 |
by degrees clockwise. Here, only 90, 180 and 270 degrees |
|
7667 |
are implemented. Hard angles are done in #hardRotate:. |
|
7668 |
The code here is depth-independent (but not too fast); |
|
7669 |
can be redefined in subclasses for more performance" |
|
7670 |
||
7671 |
|w "{Class: SmallInteger }"
|
|
7672 |
h "{Class: SmallInteger }"
|
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7673 |
c2 r2 pixelArray| |
| 1646 | 7674 |
|
7675 |
w := width - 1. |
|
7676 |
h := height - 1. |
|
7677 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7678 |
pixelArray := self pixelArraySpecies new:width. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7679 |
|
| 1646 | 7680 |
degrees = 90 ifTrue:[ |
7681 |
0 to:h do:[:row | |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7682 |
self rowAt:row into:pixelArray startingAt:1. |
| 1646 | 7683 |
c2 := h-row. |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7684 |
0 to:w do:[:col | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7685 |
destinationImage pixelAtX:c2 y:col put:(pixelArray at:(col+1)). |
| 1646 | 7686 |
] |
7687 |
]. |
|
7688 |
^ self. |
|
7689 |
]. |
|
7690 |
||
7691 |
degrees = 180 ifTrue:[ |
|
7692 |
0 to:h do:[:row | |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7693 |
self rowAt:row into:pixelArray startingAt:1. |
| 1646 | 7694 |
r2 := h - row. |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7695 |
0 to:w do:[:col | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7696 |
destinationImage pixelAtX:(w-col) y:r2 put:(pixelArray at:(col+1)). |
| 1646 | 7697 |
] |
7698 |
]. |
|
7699 |
^ self |
|
7700 |
]. |
|
7701 |
||
7702 |
"/ degrees = 270 |
|
7703 |
0 to:h do:[:row | |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7704 |
self rowAt:row into:pixelArray startingAt:1. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7705 |
0 to:w do:[:col | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7706 |
destinationImage pixelAtX:row y:(w-col) put:(pixelArray at:(col+1)). |
| 1646 | 7707 |
] |
7708 |
] |
|
7709 |
||
7710 |
"Created: 23.4.1997 / 14:36:45 / cg" |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7711 |
"Modified: 24.4.1997 / 17:26:26 / cg" |
| 1646 | 7712 |
! |
7713 |
||
| 283 | 7714 |
flipHorizontal |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7715 |
"destructively inplace horizontal flip" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7716 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7717 |
|h "{Class: SmallInteger }"
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7718 |
pixelArray| |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7719 |
|
| 283 | 7720 |
h := height - 1. |
7721 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7722 |
pixelArray := self pixelArraySpecies new:width. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7723 |
|
| 283 | 7724 |
0 to:h do:[:row | |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7725 |
self rowAt:row into:pixelArray. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7726 |
pixelArray reverse. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7727 |
self rowAt:row putAll:pixelArray. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7728 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7729 |
|
| 1386 | 7730 |
mask notNil ifTrue:[ |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7731 |
mask flipHorizontal |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7732 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7733 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7734 |
"/ flush device info |
| 283 | 7735 |
self restored |
| 1386 | 7736 |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7737 |
"Modified: 24.4.1997 / 16:27:28 / cg" |
| 283 | 7738 |
! |
7739 |
||
7740 |
flipVertical |
|
7741 |
"inplace vertical flip" |
|
7742 |
||
7743 |
|h "{Class: SmallInteger }"
|
|
7744 |
bytesPerRow "{Class: SmallInteger }"
|
|
7745 |
buffer |
|
7746 |
indexLow "{Class: SmallInteger }"
|
|
7747 |
indexHi "{Class: SmallInteger }"|
|
|
7748 |
||
7749 |
bytesPerRow := self bytesPerRow. |
|
7750 |
buffer := ByteArray new:bytesPerRow. |
|
7751 |
||
7752 |
h := height - 1. |
|
7753 |
||
7754 |
indexLow := 1. |
|
7755 |
indexHi := bytesPerRow * h + 1. |
|
7756 |
||
7757 |
0 to:(h // 2) do:[:row | |
|
| 1642 | 7758 |
buffer replaceFrom:1 to:bytesPerRow with:bytes startingAt:indexLow. |
7759 |
bytes replaceFrom:indexLow to:(indexLow + bytesPerRow - 1) with:bytes startingAt:indexHi. |
|
7760 |
bytes replaceFrom:indexHi to:(indexHi + bytesPerRow - 1) with:buffer startingAt:1. |
|
7761 |
indexLow := indexLow + bytesPerRow. |
|
7762 |
indexHi := indexHi - bytesPerRow. |
|
| 1386 | 7763 |
]. |
7764 |
mask notNil ifTrue:[ |
|
| 1642 | 7765 |
mask flipVertical |
| 283 | 7766 |
]. |
7767 |
"flush device info" |
|
7768 |
self restored |
|
| 1386 | 7769 |
|
7770 |
"Modified: 27.2.1997 / 13:04:10 / cg" |
|
| 283 | 7771 |
! |
7772 |
||
7773 |
hardMagnifiedBy:scalePoint |
|
7774 |
"return a new image magnified by scalePoint, aPoint. |
|
7775 |
This is the general magnification method, handling non-integral values. |
|
7776 |
It is slower than the integral magnification method." |
|
7777 |
||
7778 |
|mX |
|
7779 |
mY |
|
7780 |
newWidth "{ Class: SmallInteger }"
|
|
7781 |
newHeight "{ Class: SmallInteger }"
|
|
7782 |
w "{ Class: SmallInteger }"
|
|
7783 |
h "{ Class: SmallInteger }"
|
|
| 906 | 7784 |
newImage newBits bitsPerPixel newBytesPerRow newMask |
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
7785 |
value |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7786 |
srcRow pixelArray| |
| 283 | 7787 |
|
7788 |
mX := scalePoint x. |
|
7789 |
mY := scalePoint y. |
|
7790 |
((mX < 0) or:[mY < 0]) ifTrue:[^ nil]. |
|
7791 |
((mX = 1) and:[mY = 1]) ifTrue:[^ self]. |
|
7792 |
||
7793 |
newWidth := (width * mX) truncated. |
|
7794 |
newHeight := (height * mY) truncated. |
|
7795 |
||
7796 |
bitsPerPixel := self depth. |
|
7797 |
newBytesPerRow := ((newWidth * bitsPerPixel) + 7) // 8. |
|
7798 |
newBits := ByteArray uninitializedNew:(newBytesPerRow * newHeight). |
|
7799 |
||
| 906 | 7800 |
mask notNil ifTrue:[ |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7801 |
newMask := (mask magnifiedBy:scalePoint) |
| 906 | 7802 |
]. |
7803 |
||
| 283 | 7804 |
newImage := self species new. |
|
888
69447418e2b1
better algorithm when dithering palette images
Claus Gittinger <cg@exept.de>
parents:
884
diff
changeset
|
7805 |
newImage |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7806 |
width:newWidth |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7807 |
height:newHeight |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7808 |
photometric:photometric |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7809 |
samplesPerPixel:samplesPerPixel |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7810 |
bitsPerSample:bitsPerSample |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7811 |
colorMap:colorMap copy |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7812 |
bits:newBits |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7813 |
mask:newMask. |
|
905
228d503775d9
everywhere you go: always magnify the mask with you ...
Claus Gittinger <cg@exept.de>
parents:
904
diff
changeset
|
7814 |
|
| 283 | 7815 |
"walk over destination image fetching pixels from source image" |
7816 |
||
7817 |
w := newWidth - 1. |
|
7818 |
h := newHeight - 1. |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7819 |
pixelArray := newImage pixelArraySpecies new:newWidth. |
| 283 | 7820 |
|
7821 |
0 to:h do:[:row | |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7822 |
srcRow := (row // mY). |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7823 |
0 to:w do:[:col | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7824 |
value := self pixelAtX:(col // mX) y:srcRow. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7825 |
pixelArray at:(col+1) put:value. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7826 |
]. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7827 |
newImage rowAt:row putAll:pixelArray. |
| 283 | 7828 |
]. |
7829 |
||
7830 |
^ newImage |
|
7831 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7832 |
" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7833 |
|i| |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7834 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7835 |
Time millisecondsToRun:[ |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7836 |
i hardMagnifiedBy:0.5@0.5 |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7837 |
] |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7838 |
" |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7839 |
|
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
7840 |
"Modified: 24.4.1997 / 16:56:49 / cg" |
| 283 | 7841 |
! |
7842 |
||
7843 |
hardRotated:degrees |
|
| 1638 | 7844 |
"return a new image from the old one, by rotating the image |
7845 |
degrees clockwise. |
|
7846 |
Warning: the returned image will be larger than the original image." |
|
7847 |
||
7848 |
|p r a aN p1 p2 p3 p4 maxX minX maxY minY |
|
7849 |
newImage |
|
7850 |
newWidth "{ Class: SmallInteger }"
|
|
7851 |
newHeight "{ Class: SmallInteger }"
|
|
7852 |
newBytesPerRow newBits |
|
7853 |
blackPixel halfW halfH radians m t bad |
|
7854 |
bytesPerRow myDepth maskBits |
|
| 1642 | 7855 |
pX pY srcX srcY pix nX nY |
7856 |
sinRot cosRot sinPY cosPY| |
|
7857 |
||
| 1638 | 7858 |
"/ placing the image at the origin, |
7859 |
"/ compute the diagonal and angle. |
|
7860 |
||
7861 |
p := (width - 1 / 2) @ (height - 1 / 2). |
|
7862 |
r := p r. |
|
7863 |
a := p angle. |
|
7864 |
||
7865 |
"/ add the rotation |
|
7866 |
"/ (sight - subtract, we defined things clockwise ... |
|
7867 |
"/ ... in contrast to point which thinks counter-clockwise) |
|
7868 |
||
7869 |
aN := a - degrees. |
|
7870 |
||
7871 |
"/ compute new corner points |
|
7872 |
p1 := Point r:r angle:aN. "/ rotated topRight |
|
7873 |
p2 := Point r:r angle:aN-a-a. "/ rotated bottomRight |
|
7874 |
p3 := p1 * -1. "/ rotated bottomLeft |
|
7875 |
p4 := p2 * -1. "/ rotated topLeft |
|
7876 |
||
7877 |
"/ compute the boundary of the new image |
|
7878 |
||
7879 |
maxX := minX := p1 x. |
|
7880 |
(t := p2 x) > maxX ifTrue:[ |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7881 |
maxX := t |
| 1638 | 7882 |
] ifFalse:[ |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7883 |
t < minX ifTrue:[minX := t]. |
| 1638 | 7884 |
]. |
7885 |
(t := p3 x) > maxX ifTrue:[ |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7886 |
maxX := t |
| 1638 | 7887 |
] ifFalse:[ |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7888 |
t < minX ifTrue:[minX := t]. |
| 1638 | 7889 |
]. |
7890 |
(t := p4 x) > maxX ifTrue:[ |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7891 |
maxX := t |
| 1638 | 7892 |
] ifFalse:[ |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7893 |
t < minX ifTrue:[minX := t]. |
| 1638 | 7894 |
]. |
7895 |
||
7896 |
maxY := minY := p1 y. |
|
7897 |
(t := p2 y) > maxY ifTrue:[ |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7898 |
maxY := t |
| 1638 | 7899 |
] ifFalse:[ |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7900 |
t < minY ifTrue:[minY := t]. |
| 1638 | 7901 |
]. |
7902 |
(t := p3 y) > maxY ifTrue:[ |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7903 |
maxY := t |
| 1638 | 7904 |
] ifFalse:[ |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7905 |
t < minY ifTrue:[minY := t]. |
| 1638 | 7906 |
]. |
7907 |
(t := p4 y) > maxY ifTrue:[ |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7908 |
maxY := t |
| 1638 | 7909 |
] ifFalse:[ |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7910 |
t < minY ifTrue:[minY := t]. |
| 1638 | 7911 |
]. |
7912 |
||
7913 |
||
7914 |
newWidth := (maxX - minX) rounded + 1. |
|
7915 |
newHeight := (maxY - minY) rounded + 1. |
|
7916 |
||
7917 |
newImage := self species new. |
|
7918 |
newImage width:newWidth. |
|
7919 |
newImage height:newHeight. |
|
7920 |
newBytesPerRow := newImage bytesPerRow. |
|
7921 |
newBits := ByteArray uninitializedNew:(newBytesPerRow * newHeight). |
|
7922 |
newImage bits:newBits. |
|
7923 |
newImage photometric:photometric. |
|
7924 |
newImage samplesPerPixel:samplesPerPixel. |
|
7925 |
newImage bitsPerSample:bitsPerSample. |
|
7926 |
newImage colorMap:colorMap copy. |
|
7927 |
newImage maskedPixelsAre0:maskedPixelsAre0. |
|
7928 |
mask notNil ifTrue:[ |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7929 |
newImage mask:(mask rotated:degrees) |
| 1638 | 7930 |
] ifFalse:[ |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7931 |
self isMask ifFalse:[ |
| 1653 | 7932 |
self depth ~~ 1 ifTrue:[ |
7933 |
m := ImageMask width:width height:height. |
|
7934 |
m bits:(maskBits := ByteArray new:(m bytesPerRow * height)). |
|
7935 |
maskBits atAllPut:16rFF. |
|
7936 |
newImage mask:(m rotated:degrees) |
|
7937 |
] |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7938 |
] |
| 1638 | 7939 |
]. |
7940 |
||
7941 |
maskedPixelsAre0 ifTrue:[ |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7942 |
blackPixel := 0. |
| 1638 | 7943 |
] ifFalse:[ |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7944 |
blackPixel := self valueFromColor:Color black. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7945 |
blackPixel isNil ifTrue:[ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7946 |
blackPixel := self valueFromColor:Color white. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7947 |
blackPixel isNil ifTrue:[ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7948 |
blackPixel := 0. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7949 |
] |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7950 |
] |
| 1638 | 7951 |
]. |
7952 |
self isMask ifTrue:[ |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7953 |
blackPixel := 0. |
| 1638 | 7954 |
]. |
7955 |
||
7956 |
myDepth := self depth. |
|
7957 |
newBits atAllPut:0. |
|
7958 |
||
7959 |
"/ now, walk over destination pixels, |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7960 |
"/ fetching from source. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7961 |
"/ (if we walked over the source, we could get holes |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7962 |
"/ in the destination image ...) |
| 1638 | 7963 |
|
7964 |
halfW := (width - 1) / 2.0. |
|
7965 |
halfH := (height - 1) / 2.0. |
|
7966 |
||
7967 |
radians := degrees degreesToRadians. |
|
7968 |
||
7969 |
bytesPerRow := self bytesPerRow. |
|
7970 |
||
7971 |
%{
|
|
7972 |
int __newHeight = __intVal(newHeight); |
|
7973 |
int __newWidth = __intVal(newWidth); |
|
7974 |
int __height = __intVal(__INST(height)); |
|
7975 |
int __width = __intVal(__INST(width)); |
|
7976 |
double __minX, __minY, __radians; |
|
7977 |
double __halfW, __halfH; |
|
7978 |
int __dstX, __dstY; |
|
7979 |
int __depth = __intVal(myDepth); |
|
7980 |
unsigned char *__srcBytes, *__dstBytes; |
|
7981 |
unsigned char *__dstPtr, *__dstRowPtr, *__dstEndPtr; |
|
7982 |
int __nSrcBytes, __nDstBytes; |
|
7983 |
int __srcBytesPerRow = __intVal(bytesPerRow); |
|
7984 |
int __dstBytesPerRow = __intVal(newBytesPerRow); |
|
| 1642 | 7985 |
int __dstMask, __blackPixel; |
7986 |
double __sin, __cos; |
|
7987 |
double sin(), cos(); |
|
| 1638 | 7988 |
# define Float_PI 3.14159 |
7989 |
||
7990 |
bad = true; |
|
7991 |
if (1 |
|
7992 |
&& __isFloat(minX) |
|
7993 |
&& __isFloat(minY) |
|
7994 |
&& __isFloat(radians) |
|
7995 |
&& __isFloat(halfW) |
|
7996 |
&& __isFloat(halfH) |
|
7997 |
&& __isByteArray(newBits) |
|
7998 |
&& __isByteArray(__INST(bytes))) {
|
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
7999 |
__srcBytes = __ByteArrayInstPtr(__INST(bytes))->ba_element; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8000 |
__dstBytes = __ByteArrayInstPtr(newBits)->ba_element; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8001 |
__nSrcBytes = __byteArraySize(__INST(bytes)); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8002 |
__nDstBytes = __byteArraySize(newBits); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8003 |
__blackPixel = __intVal(blackPixel); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8004 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8005 |
__radians = __floatVal(radians); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8006 |
__radians = -__radians; /* sigh: clock-wise */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8007 |
__sin = sin(__radians); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8008 |
__cos = cos(__radians); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8009 |
__minX = __floatVal(minX); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8010 |
__minY = __floatVal(minY); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8011 |
__halfW = __floatVal(halfW); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8012 |
__halfH = __floatVal(halfH); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8013 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8014 |
__dstRowPtr = __dstBytes; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8015 |
__dstEndPtr = __dstBytes + __nDstBytes; |
| 1642 | 8016 |
|
8017 |
# define EARLY_OUT |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8018 |
# define FAST_ADVANCE 5 |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8019 |
# define FAST_ADVANCE2 |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8020 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8021 |
switch (__depth) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8022 |
case 8: |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8023 |
for (__dstY = 0; __dstY < __newHeight; __dstY++) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8024 |
double __pY, __sinPY, __cosPY; |
|
1639
c47081269ada
faster rotation - early break from loop
Claus Gittinger <cg@exept.de>
parents:
1638
diff
changeset
|
8025 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8026 |
int didFetchInRow = 0; |
| 1642 | 8027 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8028 |
__pY = (double)(__dstY + __minY); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8029 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8030 |
__sinPY = __sin * __pY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8031 |
__cosPY = __cos * __pY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8032 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8033 |
__dstPtr = __dstRowPtr; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8034 |
__dstRowPtr += __dstBytesPerRow; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8035 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8036 |
for (__dstX = 0; __dstX < __newWidth; __dstX++) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8037 |
double __pX, __nX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8038 |
unsigned __pix; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8039 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8040 |
/* translate X in destination (center to 0/0) */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8041 |
__pX = (double)(__dstX + __minX); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8042 |
/* rotate X */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8043 |
__nX = (__cos * __pX) - __sinPY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8044 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8045 |
/* translate X in source (origin to 0/0) */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8046 |
__nX = __nX + __halfW + 0.5; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8047 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8048 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8049 |
if (__nX < 0) {
|
| 1642 | 8050 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8051 |
if (didFetchInRow) {
|
| 1653 | 8052 |
break; |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8053 |
} |
| 1642 | 8054 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8055 |
#ifdef FAST_ADVANCE |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8056 |
if (__blackPixel == 0) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8057 |
do {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8058 |
/* try advance by FAST_ADVANCE pixels ... */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8059 |
__dstX += FAST_ADVANCE; __dstPtr += FAST_ADVANCE; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8060 |
if (__dstX >= __newWidth) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8061 |
break; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8062 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8063 |
__pX = (double)(__dstX + __minX); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8064 |
__nX = (__cos * __pX) - __sinPY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8065 |
__nX = __nX + __halfW + 0.5; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8066 |
} while (__nX < 0); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8067 |
__dstX -= FAST_ADVANCE; __dstPtr -= FAST_ADVANCE; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8068 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8069 |
#endif |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8070 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8071 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8072 |
int __srcX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8073 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8074 |
__srcX = (int)__nX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8075 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8076 |
if (__srcX >= __width) {
|
| 1642 | 8077 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8078 |
if (didFetchInRow) {
|
| 1653 | 8079 |
break; |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8080 |
} |
|
1639
c47081269ada
faster rotation - early break from loop
Claus Gittinger <cg@exept.de>
parents:
1638
diff
changeset
|
8081 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8082 |
#ifdef FAST_ADVANCE2 |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8083 |
if (__blackPixel == 0) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8084 |
do {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8085 |
/* try advance by FAST_ADVANCE pixels ... */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8086 |
__dstX += FAST_ADVANCE; __dstPtr += FAST_ADVANCE; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8087 |
if (__dstX >= __newWidth) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8088 |
break; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8089 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8090 |
__pX = (double)(__dstX + __minX); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8091 |
__nX = (__cos * __pX) - __sinPY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8092 |
__nX = __nX + __halfW + 0.5; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8093 |
__srcX = (int)__nX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8094 |
} while (__srcX >= __width); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8095 |
__dstX -= FAST_ADVANCE; __dstPtr -= FAST_ADVANCE; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8096 |
} |
| 1642 | 8097 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8098 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8099 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8100 |
double __nY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8101 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8102 |
/* rotate Y */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8103 |
__nY = (__sin * __pX) + __cosPY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8104 |
/* translate Y in source (origin to 0/0) */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8105 |
__nY = __nY + __halfH + 0.5; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8106 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8107 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8108 |
if (__nY < 0) {
|
|
1639
c47081269ada
faster rotation - early break from loop
Claus Gittinger <cg@exept.de>
parents:
1638
diff
changeset
|
8109 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8110 |
if (didFetchInRow) {
|
| 1653 | 8111 |
break; |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8112 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8113 |
#endif |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8114 |
#ifdef FAST_ADVANCE2 |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8115 |
if (__blackPixel == 0) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8116 |
do {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8117 |
/* try advance by FAST_ADVANCE pixels ... */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8118 |
__dstX += FAST_ADVANCE; __dstPtr += FAST_ADVANCE; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8119 |
if (__dstX >= __newWidth) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8120 |
break; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8121 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8122 |
__pX = (double)(__dstX + __minX); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8123 |
__nY = (__sin * __pX) + __cosPY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8124 |
__nY = __nY + __halfH + 0.5; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8125 |
} while (__nY < 0); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8126 |
__dstX -= FAST_ADVANCE; __dstPtr -= FAST_ADVANCE; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8127 |
} |
|
1639
c47081269ada
faster rotation - early break from loop
Claus Gittinger <cg@exept.de>
parents:
1638
diff
changeset
|
8128 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8129 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8130 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8131 |
int __srcY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8132 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8133 |
__srcY = (int)__nY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8134 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8135 |
if (__srcY >= __height) {
|
|
1639
c47081269ada
faster rotation - early break from loop
Claus Gittinger <cg@exept.de>
parents:
1638
diff
changeset
|
8136 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8137 |
if (didFetchInRow) {
|
| 1653 | 8138 |
break; |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8139 |
} |
| 1638 | 8140 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8141 |
#ifdef FAST_ADVANCE |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8142 |
if (__blackPixel == 0) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8143 |
do {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8144 |
/* try advance by FAST_ADVANCE pixels ... */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8145 |
__dstX += FAST_ADVANCE; __dstPtr += FAST_ADVANCE; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8146 |
if (__dstX >= __newWidth) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8147 |
break; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8148 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8149 |
__pX = (double)(__dstX + __minX); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8150 |
__nY = (__sin * __pX) + __cosPY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8151 |
__nY = __nY + __halfH + 0.5; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8152 |
__srcY = (int)__nY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8153 |
} while (__srcY >= __height); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8154 |
__dstX -= FAST_ADVANCE; __dstPtr -= FAST_ADVANCE; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8155 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8156 |
#endif |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8157 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8158 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8159 |
/* fetch source pixel */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8160 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8161 |
int idx; |
| 1642 | 8162 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8163 |
didFetchInRow = 1; |
| 1642 | 8164 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8165 |
idx = __srcY * __srcBytesPerRow + __srcX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8166 |
if ((unsigned)idx < __nSrcBytes) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8167 |
__pix = __srcBytes[idx]; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8168 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8169 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8170 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8171 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8172 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8173 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8174 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8175 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8176 |
if (__pix != 0) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8177 |
*__dstPtr = __pix; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8178 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8179 |
__dstPtr++; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8180 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8181 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8182 |
break; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8183 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8184 |
case 1: |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8185 |
for (__dstY = 0; __dstY < __newHeight; __dstY++) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8186 |
double __pY, __sinPY, __cosPY; |
|
1639
c47081269ada
faster rotation - early break from loop
Claus Gittinger <cg@exept.de>
parents:
1638
diff
changeset
|
8187 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8188 |
int didFetchInRow = 0; |
| 1642 | 8189 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8190 |
__pY = (double)(__dstY + __minY); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8191 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8192 |
__sinPY = __sin * __pY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8193 |
__cosPY = __cos * __pY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8194 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8195 |
__dstPtr = __dstRowPtr; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8196 |
__dstMask = 0x80; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8197 |
__dstRowPtr += __dstBytesPerRow; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8198 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8199 |
for (__dstX = 0; __dstX < __newWidth; __dstX++) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8200 |
double __pX, __nX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8201 |
int __pix; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8202 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8203 |
/* translate X in destination (center to 0/0) */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8204 |
__pX = (double)(__dstX + __minX); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8205 |
/* rotate X */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8206 |
__nX = (__cos * __pX) - __sinPY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8207 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8208 |
/* translate X in source (origin to 0/0) */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8209 |
__nX = __nX + __halfW + 0.5; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8210 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8211 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8212 |
if (__nX < 0) {
|
| 1642 | 8213 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8214 |
if (didFetchInRow) {
|
| 1653 | 8215 |
break; |
8216 |
} |
|
8217 |
#endif |
|
8218 |
#ifdef FAST_ADVANCE |
|
8219 |
if (__blackPixel == 0) {
|
|
8220 |
do {
|
|
8221 |
/* try advance by 8 pixels ... */ |
|
8222 |
__dstX += 8; __dstPtr ++; |
|
8223 |
if (__dstX >= __newWidth) {
|
|
8224 |
break; |
|
8225 |
} |
|
8226 |
__pX = (double)(__dstX + __minX); |
|
8227 |
__nX = (__cos * __pX) - __sinPY; |
|
8228 |
__nX = __nX + __halfW + 0.5; |
|
8229 |
} while (__nX < 0); |
|
8230 |
__dstX -= 8; __dstPtr--; |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8231 |
} |
| 1638 | 8232 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8233 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8234 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8235 |
int __srcX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8236 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8237 |
__srcX = (int)__nX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8238 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8239 |
if (__srcX >= __width) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8240 |
#ifdef EARLY_OUT |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8241 |
if (didFetchInRow) {
|
| 1653 | 8242 |
break; |
8243 |
} |
|
8244 |
#endif |
|
8245 |
#ifdef FAST_ADVANCE2 |
|
8246 |
if (__blackPixel == 0) {
|
|
8247 |
do {
|
|
8248 |
/* try advance by 8 pixels ... */ |
|
8249 |
__dstX += 8; __dstPtr++; |
|
8250 |
if (__dstX >= __newWidth) {
|
|
8251 |
break; |
|
8252 |
} |
|
8253 |
__pX = (double)(__dstX + __minX); |
|
8254 |
__nX = (__cos * __pX) - __sinPY; |
|
8255 |
__nX = __nX + __halfW + 0.5; |
|
8256 |
__srcX = (int)__nX; |
|
8257 |
} while (__srcX >= __width); |
|
8258 |
__dstX -= 8; __dstPtr--; |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8259 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8260 |
#endif |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8261 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8262 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8263 |
double __nY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8264 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8265 |
/* rotate Y */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8266 |
__nY = (__sin * __pX) + __cosPY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8267 |
/* translate Y in source (origin to 0/0) */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8268 |
__nY = __nY + __halfH + 0.5; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8269 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8270 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8271 |
if (__nY < 0) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8272 |
#ifdef EARLY_OUT |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8273 |
if (didFetchInRow) {
|
| 1653 | 8274 |
break; |
8275 |
} |
|
8276 |
#endif |
|
8277 |
#ifdef FAST_ADVANCE2 |
|
8278 |
if (__blackPixel == 0) {
|
|
8279 |
do {
|
|
8280 |
/* try advance by 8 pixels ... */ |
|
8281 |
__dstX += 8; __dstPtr++; |
|
8282 |
if (__dstX >= __newWidth) {
|
|
8283 |
break; |
|
8284 |
} |
|
8285 |
__pX = (double)(__dstX + __minX); |
|
8286 |
__nY = (__sin * __pX) + __cosPY; |
|
8287 |
__nY = __nY + __halfH + 0.5; |
|
8288 |
} while (__nY < 0); |
|
8289 |
__dstX -= 8; __dstPtr--; |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8290 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8291 |
#endif |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8292 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8293 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8294 |
int __srcY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8295 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8296 |
__srcY = (int)__nY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8297 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8298 |
if (__srcY >= __height) {
|
|
1639
c47081269ada
faster rotation - early break from loop
Claus Gittinger <cg@exept.de>
parents:
1638
diff
changeset
|
8299 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8300 |
if (didFetchInRow) {
|
| 1653 | 8301 |
break; |
8302 |
} |
|
8303 |
#endif |
|
8304 |
#ifdef FAST_ADVANCE |
|
8305 |
if (__blackPixel == 0) {
|
|
8306 |
do {
|
|
8307 |
/* try advance by 8 pixels ... */ |
|
8308 |
__dstX += 8; __dstPtr++; |
|
8309 |
if (__dstX >= __newWidth) {
|
|
8310 |
break; |
|
8311 |
} |
|
8312 |
__pX = (double)(__dstX + __minX); |
|
8313 |
__nY = (__sin * __pX) + __cosPY; |
|
8314 |
__nY = __nY + __halfH + 0.5; |
|
8315 |
__srcY = (int)__nY; |
|
8316 |
} while (__srcY >= __height); |
|
8317 |
__dstX -= 8; __dstPtr--; |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8318 |
} |
| 1642 | 8319 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8320 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8321 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8322 |
/* fetch source pixel */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8323 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8324 |
int idx, pV; |
| 1642 | 8325 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8326 |
didFetchInRow = 1; |
| 1642 | 8327 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8328 |
idx = __srcY * __srcBytesPerRow + (__srcX >> 3); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8329 |
if ((unsigned)idx < __nSrcBytes) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8330 |
pV = __srcBytes[idx]; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8331 |
__pix = (pV & (0x80 >> (__srcX & 7))) ? 1 : 0; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8332 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8333 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8334 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8335 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8336 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8337 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8338 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8339 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8340 |
/* store pixel */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8341 |
if (__pix != 0) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8342 |
*__dstPtr |= __dstMask; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8343 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8344 |
__dstMask >>= 1; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8345 |
if (__dstMask == 0) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8346 |
__dstMask = 0x80; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8347 |
__dstPtr++; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8348 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8349 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8350 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8351 |
break; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8352 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8353 |
case 24: |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8354 |
for (__dstY = 0; __dstY < __newHeight; __dstY++) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8355 |
double __pY, __sinPY, __cosPY; |
| 1642 | 8356 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8357 |
int didFetchInRow = 0; |
| 1642 | 8358 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8359 |
__pY = (double)(__dstY + __minY); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8360 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8361 |
__sinPY = __sin * __pY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8362 |
__cosPY = __cos * __pY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8363 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8364 |
__dstPtr = __dstRowPtr; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8365 |
__dstRowPtr += __dstBytesPerRow; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8366 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8367 |
for (__dstX = 0; __dstX < __newWidth; __dstX++) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8368 |
double __pX, __nX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8369 |
unsigned __pix; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8370 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8371 |
/* translate X in destination (center to 0/0) */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8372 |
__pX = (double)(__dstX + __minX); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8373 |
/* rotate X */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8374 |
__nX = (__cos * __pX) - __sinPY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8375 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8376 |
/* translate X in source (origin to 0/0) */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8377 |
__nX = __nX + __halfW + 0.5; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8378 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8379 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8380 |
if (__nX < 0) {
|
| 1642 | 8381 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8382 |
if (didFetchInRow) {
|
| 1653 | 8383 |
break; |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8384 |
} |
|
1639
c47081269ada
faster rotation - early break from loop
Claus Gittinger <cg@exept.de>
parents:
1638
diff
changeset
|
8385 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8386 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8387 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8388 |
int __srcX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8389 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8390 |
__srcX = (int)__nX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8391 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8392 |
if (__srcX >= __width) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8393 |
#ifdef EARLY_OUT |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8394 |
if (didFetchInRow) {
|
| 1653 | 8395 |
break; |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8396 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8397 |
#endif |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8398 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8399 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8400 |
double __nY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8401 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8402 |
/* rotate Y */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8403 |
__nY = (__sin * __pX) + __cosPY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8404 |
/* translate Y in source (origin to 0/0) */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8405 |
__nY = __nY + __halfH + 0.5; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8406 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8407 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8408 |
if (__nY < 0) {
|
| 1642 | 8409 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8410 |
if (didFetchInRow) {
|
| 1653 | 8411 |
break; |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8412 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8413 |
#endif |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8414 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8415 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8416 |
int __srcY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8417 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8418 |
__srcY = (int)__nY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8419 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8420 |
if (__srcY >= __height) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8421 |
#ifdef EARLY_OUT |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8422 |
if (didFetchInRow) {
|
| 1653 | 8423 |
break; |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8424 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8425 |
#endif |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8426 |
__pix = __blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8427 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8428 |
/* fetch source pixel */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8429 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8430 |
int idx; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8431 |
#ifdef EARLY_OUT |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8432 |
didFetchInRow = 1; |
| 1642 | 8433 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8434 |
idx = __srcY * __srcBytesPerRow + __srcX + __srcX + __srcX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8435 |
if ((unsigned)idx < __nSrcBytes) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8436 |
__pix = __srcBytes[idx]; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8437 |
__pix = (__pix<<8) | __srcBytes[idx+1]; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8438 |
__pix = (__pix<<8) | __srcBytes[idx+2]; |
| 1653 | 8439 |
} else {
|
8440 |
__pix = __blackPixel; |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8441 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8442 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8443 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8444 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8445 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8446 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8447 |
/* store pixel */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8448 |
if (__pix != 0) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8449 |
__dstPtr[0] = (__pix >> 16 & 0xFF); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8450 |
__dstPtr[1] = (__pix >> 8) & 0xFF; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8451 |
__dstPtr[2] = __pix & 0xFF; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8452 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8453 |
__dstPtr += 3; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8454 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8455 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8456 |
break; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8457 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8458 |
default: |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8459 |
for (__dstY = 0; __dstY < __newHeight; __dstY++) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8460 |
double __pY, __sinPY, __cosPY; |
| 1642 | 8461 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8462 |
int didFetchInRow = 0; |
| 1642 | 8463 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8464 |
__pY = (double)(__dstY + __minY); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8465 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8466 |
__sinPY = __sin * __pY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8467 |
__cosPY = __cos * __pY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8468 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8469 |
__dstPtr = __dstRowPtr; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8470 |
__dstMask = 0x80; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8471 |
__dstRowPtr += __dstBytesPerRow; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8472 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8473 |
for (__dstX = 0; __dstX < __newWidth; __dstX++) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8474 |
double __pX, __nX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8475 |
OBJ __pix; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8476 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8477 |
/* translate X in destination (center to 0/0) */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8478 |
__pX = (double)(__dstX + __minX); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8479 |
/* rotate X */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8480 |
__nX = (__cos * __pX) - __sinPY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8481 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8482 |
/* translate X in source (origin to 0/0) */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8483 |
__nX = __nX + __halfW + 0.5; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8484 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8485 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8486 |
if (__nX < 0) {
|
| 1642 | 8487 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8488 |
if (didFetchInRow) {
|
| 1653 | 8489 |
break; |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8490 |
} |
| 1642 | 8491 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8492 |
__pix = blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8493 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8494 |
int __srcX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8495 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8496 |
__srcX = (int)__nX; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8497 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8498 |
if (__srcX >= __width) {
|
| 1642 | 8499 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8500 |
if (didFetchInRow) {
|
| 1653 | 8501 |
break; |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8502 |
} |
| 1642 | 8503 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8504 |
__pix = blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8505 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8506 |
double __nY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8507 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8508 |
/* rotate Y */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8509 |
__nY = (__sin * __pX) + __cosPY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8510 |
/* translate Y in source (origin to 0/0) */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8511 |
__nY = __nY + __halfH + 0.5; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8512 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8513 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8514 |
if (__nY < 0) {
|
| 1642 | 8515 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8516 |
if (didFetchInRow) {
|
| 1653 | 8517 |
break; |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8518 |
} |
| 1642 | 8519 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8520 |
__pix = blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8521 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8522 |
int __srcY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8523 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8524 |
__srcY = (int)__nY; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8525 |
/* inside ? */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8526 |
if (__srcY >= __height) {
|
| 1642 | 8527 |
#ifdef EARLY_OUT |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8528 |
if (didFetchInRow) {
|
| 1653 | 8529 |
break; |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8530 |
} |
| 1642 | 8531 |
#endif |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8532 |
__pix = blackPixel; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8533 |
} else {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8534 |
/* fetch source pixel */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8535 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8536 |
static struct inlineCache valAt = _ILC2; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8537 |
#ifdef EARLY_OUT |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8538 |
didFetchInRow = 1; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8539 |
#endif |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8540 |
__pix = (*valAt.ilc_func)(self, |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
8541 |
@symbol(pixelAtX:y:), |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8542 |
nil, &valAt, |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8543 |
__MKSMALLINT(__srcX), |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8544 |
__MKSMALLINT(__srcY)); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8545 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8546 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8547 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8548 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8549 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8550 |
/* store pixel */ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8551 |
{
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8552 |
static struct inlineCache atPutVal = _ILC3; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8553 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8554 |
if (__pix != __MKSMALLINT(0)) {
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8555 |
(*atPutVal.ilc_func)(newImage, |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
8556 |
@symbol(pixeAtX:y:put:), |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8557 |
nil, &atPutVal, |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8558 |
__MKSMALLINT(__dstX), |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8559 |
__MKSMALLINT(__dstY), |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8560 |
__pix |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8561 |
); |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8562 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8563 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8564 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8565 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8566 |
break; |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8567 |
} |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8568 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8569 |
bad = false; |
| 1638 | 8570 |
} |
8571 |
%}. |
|
8572 |
||
8573 |
bad ifTrue:[ |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8574 |
"/ should not happen |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8575 |
self primitiveFailed |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8576 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8577 |
"/ sinRot := radians negated sin. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8578 |
"/ cosRot := radians negated cos. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8579 |
"/ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8580 |
"/ 0 to:newHeight-1 do:[:dstY | |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8581 |
"/ pY := (dstY + minY). |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8582 |
"/ sinPY := (sinRot * pY). |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8583 |
"/ cosPY := (cosRot * pY). |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8584 |
"/ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8585 |
"/ 0 to:newWidth-1 do:[:dstX | |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8586 |
"/ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8587 |
"/ "/ translate center to origin |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8588 |
"/ pX := (dstX + minX). |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8589 |
"/ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8590 |
"/ nX := (cosRot * pX) - sinPY. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8591 |
"/ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8592 |
"/ "/ translate in source |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8593 |
"/ srcX := nX + halfW. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8594 |
"/ srcX := srcX rounded. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8595 |
"/ "/ inside ? |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8596 |
"/ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8597 |
"/ (srcX >= 0 and:[srcX < width]) ifTrue:[ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8598 |
"/ nY := (sinRot * pX) + cosPY. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8599 |
"/ srcY := nY + halfH. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8600 |
"/ srcY := srcY rounded. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8601 |
"/ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8602 |
"/ "/ inside ? |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8603 |
"/ (srcY >= 0 and:[srcY < height]) ifTrue:[ |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
8604 |
"/ pix := self pixelAtX:srcX y:srcY |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8605 |
"/ ] ifFalse:[ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8606 |
"/ pix := blackPixel. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8607 |
"/ ]. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8608 |
"/ ] ifFalse:[ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8609 |
"/ pix := blackPixel. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8610 |
"/ ]. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8611 |
"/ pix ~~ blackPixel ifTrue:[ |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
8612 |
"/ newImage pixelAtX:dstX y:dstY put:pix. |
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8613 |
"/ ] |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8614 |
"/ ]. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8615 |
"/ ]. |
| 1638 | 8616 |
]. |
8617 |
||
8618 |
^ newImage |
|
8619 |
||
8620 |
" |
|
8621 |
|i| |
|
8622 |
||
8623 |
i := Image fromFile:'bitmaps/xpmBitmaps/BOOK.xpm'. |
|
8624 |
i inspect. |
|
8625 |
(i rotated:45) inspect. |
|
8626 |
(i rotated:90) inspect. |
|
8627 |
(i rotated:91) inspect. |
|
8628 |
(i rotated:95) inspect. |
|
8629 |
" |
|
8630 |
" |
|
8631 |
|i| |
|
8632 |
||
8633 |
i := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
|
| 1653 | 8634 |
i := Depth24Image fromImage:i. |
8635 |
(i rotated:200) inspect |
|
| 1638 | 8636 |
" |
8637 |
" |
|
8638 |
|i| |
|
8639 |
||
8640 |
i := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
|
8641 |
Transcript showCR:( |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8642 |
Time millisecondsToRun:[ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8643 |
i rotated:45. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8644 |
] |
| 1638 | 8645 |
). |
8646 |
" |
|
8647 |
" |
|
8648 |
|v i rI rot| |
|
8649 |
||
8650 |
i := Image fromFile:'bitmaps/xpmBitmaps/BOOK.xpm'. |
|
8651 |
v := View new extent:(i width max:100)@(i height max:100). |
|
8652 |
v openAndWait. |
|
8653 |
rot := 0. |
|
8654 |
[true] whileTrue:[ |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8655 |
rI := i rotated:rot. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8656 |
rI := rI on:v device. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8657 |
v clear. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8658 |
v displayForm:rI x:v width//2-(rI width//2) y:v height//2-(rI height // 2). |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8659 |
rot := rot + 5. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8660 |
rI close. |
| 1638 | 8661 |
] |
8662 |
" |
|
8663 |
" |
|
8664 |
|v i rI rot| |
|
8665 |
||
8666 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
|
| 1653 | 8667 |
v := View new extent:400@400. |
| 1638 | 8668 |
v openAndWait. |
8669 |
rot := 0. |
|
8670 |
[true] whileTrue:[ |
|
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8671 |
rI := i rotated:rot. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8672 |
rI := rI on:v device. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8673 |
v clear. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8674 |
v displayForm:rI x:v width//2-(rI width//2) y:v height//2-(rI height // 2). |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8675 |
rot := rot + 5. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
8676 |
rI close. |
| 1638 | 8677 |
] |
8678 |
" |
|
8679 |
||
8680 |
"Modified: 22.4.1997 / 17:36:37 / cg" |
|
| 81 | 8681 |
! |
8682 |
||
| 54 | 8683 |
lightened |
| 89 | 8684 |
"return a new image which is slightly brighter than the receiver. |
8685 |
The receiver must be a palette image (currently). |
|
| 592 | 8686 |
CAVEAT: Need an argument, which specifies by how much it should be lighter." |
| 54 | 8687 |
|
| 81 | 8688 |
^ self |
| 1642 | 8689 |
copyWithColorMapProcessing:[:clr | clr lightened] |
| 81 | 8690 |
|
8691 |
" |
|
8692 |
(Image fromFile:'bitmaps/claus.gif') inspect |
|
8693 |
(Image fromFile:'bitmaps/claus.gif') lightened inspect |
|
8694 |
(Image fromFile:'bitmaps/claus.gif') darkened inspect |
|
8695 |
(Image fromFile:'bitmaps/claus.gif') darkened darkened inspect |
|
8696 |
" |
|
| 592 | 8697 |
|
8698 |
"Modified: 23.4.1996 / 11:14:41 / cg" |
|
| 54 | 8699 |
! |
8700 |
||
| 134 | 8701 |
magnifiedBy:scale |
| 81 | 8702 |
"return a new image magnified by scalePoint, aPoint. |
| 72 | 8703 |
If non-integral magnify is asked for, pass the work on to 'hardMagnifyBy:' |
8704 |
while simple (integral) magnifications are handled here." |
|
| 0 | 8705 |
|
| 81 | 8706 |
|scalePoint mX mY |
| 46 | 8707 |
magX "{ Class: SmallInteger }" "new version of stc can find this out itself..."
|
8708 |
magY "{ Class: SmallInteger }"
|
|
8709 |
srcOffset "{ Class: SmallInteger }"
|
|
8710 |
dstOffset "{ Class: SmallInteger }"
|
|
8711 |
w "{ Class: SmallInteger }"
|
|
8712 |
h "{ Class: SmallInteger }"
|
|
8713 |
first |
|
| 906 | 8714 |
newWidth newHeight newImage newBits newMask |
| 81 | 8715 |
bitsPerPixel newBytesPerRow oldBytesPerRow| |
| 0 | 8716 |
|
| 81 | 8717 |
scalePoint := scale asPoint. |
8718 |
mX := scalePoint asPoint x. |
|
8719 |
mY := scalePoint asPoint y. |
|
| 46 | 8720 |
((mX <= 0) or:[mY <= 0]) ifTrue:[^ nil]. |
| 0 | 8721 |
((mX = 1) and:[mY = 1]) ifTrue:[^ self]. |
8722 |
||
| 12 | 8723 |
((mX isMemberOf:SmallInteger) and:[mY isMemberOf:SmallInteger]) ifFalse:[ |
| 1642 | 8724 |
^ self hardMagnifiedBy:scalePoint |
| 0 | 8725 |
]. |
8726 |
||
| 2 | 8727 |
bitsPerPixel := self depth. |
| 0 | 8728 |
oldBytesPerRow := ((width * bitsPerPixel) + 7) // 8. |
8729 |
||
| 46 | 8730 |
w := width. |
8731 |
h := height. |
|
8732 |
magX := mX. |
|
8733 |
magY := mY. |
|
8734 |
||
8735 |
newWidth := w * mX. |
|
8736 |
newHeight := h * mY. |
|
| 0 | 8737 |
newBytesPerRow := ((newWidth * bitsPerPixel) + 7) // 8. |
8738 |
newBits := ByteArray uninitializedNew:(newBytesPerRow * newHeight). |
|
8739 |
||
| 906 | 8740 |
mask notNil ifTrue:[ |
| 1642 | 8741 |
newMask := (mask magnifiedBy:scalePoint) |
| 906 | 8742 |
]. |
8743 |
||
| 0 | 8744 |
newImage := self species new. |
|
905
228d503775d9
everywhere you go: always magnify the mask with you ...
Claus Gittinger <cg@exept.de>
parents:
904
diff
changeset
|
8745 |
newImage |
| 1642 | 8746 |
width:newWidth |
8747 |
height:newHeight |
|
8748 |
photometric:photometric |
|
8749 |
samplesPerPixel:samplesPerPixel |
|
8750 |
bitsPerSample:bitsPerSample |
|
8751 |
colorMap:colorMap copy |
|
8752 |
bits:newBits |
|
8753 |
mask:newMask. |
|
| 0 | 8754 |
|
8755 |
mX = 1 ifTrue:[ |
|
| 1642 | 8756 |
"expand rows only" |
8757 |
srcOffset := 1. |
|
8758 |
dstOffset := 1. |
|
8759 |
||
8760 |
1 to:h do:[:row | |
|
8761 |
1 to:mY do:[:i | |
|
8762 |
newBits replaceFrom:dstOffset |
|
8763 |
to:(dstOffset + oldBytesPerRow - 1) |
|
8764 |
with:bytes |
|
8765 |
startingAt:srcOffset. |
|
8766 |
dstOffset := dstOffset + newBytesPerRow |
|
8767 |
]. |
|
8768 |
srcOffset := srcOffset + oldBytesPerRow. |
|
8769 |
]. |
|
| 0 | 8770 |
] ifFalse:[ |
| 1642 | 8771 |
"expand cols" |
8772 |
(mX > 1) ifTrue:[ |
|
8773 |
dstOffset := 1. |
|
8774 |
srcOffset := 1. |
|
8775 |
1 to:h do:[:row | |
|
8776 |
self magnifyRowFrom:bytes |
|
8777 |
offset:srcOffset |
|
8778 |
into:newBits |
|
8779 |
offset:dstOffset |
|
8780 |
factor:mX. |
|
8781 |
||
8782 |
first := dstOffset. |
|
8783 |
dstOffset := dstOffset + newBytesPerRow. |
|
8784 |
" and copy for row expansion " |
|
8785 |
2 to:mY do:[:i | |
|
8786 |
newBits replaceFrom:dstOffset |
|
8787 |
to:(dstOffset + newBytesPerRow - 1) |
|
8788 |
with:newBits |
|
8789 |
startingAt:first. |
|
8790 |
dstOffset := dstOffset + newBytesPerRow |
|
8791 |
]. |
|
8792 |
srcOffset := srcOffset + oldBytesPerRow. |
|
8793 |
]. |
|
8794 |
] |
|
| 0 | 8795 |
]. |
8796 |
^ newImage |
|
8797 |
||
| 134 | 8798 |
"((Image fromFile:'bitmaps/claus.gif') magnifiedBy:1@2)" |
|
905
228d503775d9
everywhere you go: always magnify the mask with you ...
Claus Gittinger <cg@exept.de>
parents:
904
diff
changeset
|
8799 |
|
| 906 | 8800 |
"Modified: 27.6.1996 / 17:46:28 / cg" |
| 2 | 8801 |
! |
8802 |
||
| 154 | 8803 |
magnifiedPreservingRatioTo:anExtent |
8804 |
"return a new image magnified to fit into anExtent, |
|
8805 |
preserving the receivers width/height ratio. |
|
8806 |
(i.e. not distorting the image). |
|
8807 |
See also #magnifiedTo: and #magnifiedBy:" |
|
8808 |
||
8809 |
|rX rY| |
|
8810 |
||
8811 |
rX := anExtent x / self width. |
|
8812 |
rY := anExtent y / self height. |
|
8813 |
^ self magnifiedBy:(rX min:rY) |
|
8814 |
||
8815 |
" |
|
| 1630 | 8816 |
((Image fromFile:'bitmaps/gifImages/garfield.gif') magnifiedPreservingRatioTo:100@100) |
| 154 | 8817 |
|
8818 |
in contrast to: |
|
8819 |
||
| 1630 | 8820 |
((Image fromFile:'bitmaps/gifImages/garfield.gif') magnifiedTo:100@100) |
8821 |
" |
|
8822 |
||
8823 |
"Modified: 22.4.1997 / 12:33:46 / cg" |
|
| 154 | 8824 |
! |
8825 |
||
| 134 | 8826 |
magnifiedTo:anExtent |
| 154 | 8827 |
"return a new image magnified to have the size specified by extent. |
8828 |
This may distort the image if the arguments ratio is not the images ratio. |
|
8829 |
See also #magnifiedPreservingRatioTo: and #magnifiedBy:" |
|
| 89 | 8830 |
|
| 134 | 8831 |
^ self magnifiedBy:(anExtent / self extent) |
| 89 | 8832 |
|
8833 |
" |
|
| 134 | 8834 |
((Image fromFile:'bitmaps/garfield.gif') magnifiedTo:100@100) |
| 154 | 8835 |
|
8836 |
in contrast to: |
|
8837 |
||
8838 |
((Image fromFile:'bitmaps/garfield.gif') magnifiedPreservingRatioTo:100@100) |
|
| 89 | 8839 |
" |
8840 |
! |
|
8841 |
||
| 12 | 8842 |
rotated:degrees |
8843 |
"return a new image from the old one, by rotating the image |
|
| 1638 | 8844 |
degrees clockwise. |
| 1646 | 8845 |
Notice, that the resulting image has a different extent. |
8846 |
If rotation is heavily used, the workHorse methods |
|
8847 |
(#easyRotateBitsInto:angle: and #hardRotateBitsInto:angle) may |
|
8848 |
be redefined in concrete image subclasses." |
|
8849 |
||
8850 |
|nW "{Class: SmallInteger }"
|
|
| 692 | 8851 |
nH "{Class: SmallInteger }"
|
| 24 | 8852 |
newImage newBits newBytesPerRow d| |
| 12 | 8853 |
|
8854 |
d := degrees. |
|
8855 |
[d < 0] whileTrue:[d := d + 360]. |
|
8856 |
d >= 360 ifTrue:[d := d \\ 360]. |
|
| 46 | 8857 |
d := d truncated. |
| 1638 | 8858 |
d = 0 ifTrue:[^ self]. |
8859 |
((d ~= 90) and:[(d ~= 270) and:[d ~= 180]]) ifTrue:[ |
|
| 1646 | 8860 |
^ self hardRotated:d |
| 12 | 8861 |
]. |
8862 |
||
| 1638 | 8863 |
d = 180 ifTrue:[ |
| 1646 | 8864 |
nW := width. |
8865 |
nH := height. |
|
| 692 | 8866 |
] ifFalse:[ |
| 1646 | 8867 |
nW := height. |
8868 |
nH := width. |
|
8869 |
]. |
|
| 12 | 8870 |
|
8871 |
newImage := self species new. |
|
| 692 | 8872 |
newImage width:nW. |
8873 |
newImage height:nH. |
|
| 1646 | 8874 |
newBytesPerRow := newImage bytesPerRow. |
8875 |
newBits := ByteArray uninitializedNew:(newBytesPerRow * nH). |
|
8876 |
newImage bits:newBits. |
|
| 12 | 8877 |
newImage photometric:photometric. |
8878 |
newImage samplesPerPixel:samplesPerPixel. |
|
8879 |
newImage bitsPerSample:bitsPerSample. |
|
8880 |
newImage colorMap:colorMap copy. |
|
| 1638 | 8881 |
mask notNil ifTrue:[ |
| 1646 | 8882 |
newImage mask:(mask rotated:degrees) |
8883 |
]. |
|
8884 |
||
8885 |
self easyRotateBitsInto:newImage angle:d. |
|
| 1638 | 8886 |
|
| 12 | 8887 |
^ newImage |
| 592 | 8888 |
|
| 692 | 8889 |
" |
8890 |
|i| |
|
8891 |
||
| 1638 | 8892 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
| 692 | 8893 |
i inspect. |
8894 |
(i rotated:90) inspect. |
|
8895 |
(i rotated:180) inspect. |
|
8896 |
(i rotated:270) inspect. |
|
8897 |
" |
|
| 1646 | 8898 |
" |
8899 |
|i| |
|
8900 |
||
8901 |
i := Image fromFile:'bitmaps/xpmBitmaps/BOOK.xpm'. |
|
8902 |
i inspect. |
|
8903 |
(i rotated:90) inspect. |
|
8904 |
(i rotated:180) inspect. |
|
8905 |
(i rotated:270) inspect. |
|
8906 |
" |
|
8907 |
||
8908 |
"Modified: 23.4.1997 / 14:49:54 / cg" |
|
| 692 | 8909 |
! |
8910 |
||
8911 |
withPixelFunctionApplied:pixelFunctionBlock |
|
8912 |
"return a new image from the old one, by applying a pixel processor |
|
| 1509 | 8913 |
on the pixel colors. |
| 692 | 8914 |
(read `Behond photography, by Gerard J. Holzmann; |
| 1642 | 8915 |
ISBM 0-13-074410-7) |
| 692 | 8916 |
See blurred / oilPointed as examples ...)" |
8917 |
||
8918 |
|w "{Class: SmallInteger }"
|
|
8919 |
h "{Class: SmallInteger }"
|
|
| 1063 | 8920 |
newImage newBits newBytesPerRow| |
| 692 | 8921 |
|
8922 |
newBytesPerRow := ((width * self depth) + 7) // 8. |
|
8923 |
newBits := ByteArray uninitializedNew:(newBytesPerRow * height). |
|
8924 |
||
8925 |
newImage := self species new. |
|
8926 |
newImage bits:newBits. |
|
8927 |
newImage width:width. |
|
8928 |
newImage height:height. |
|
8929 |
newImage photometric:photometric. |
|
8930 |
newImage samplesPerPixel:samplesPerPixel. |
|
8931 |
newImage bitsPerSample:bitsPerSample. |
|
8932 |
newImage colorMap:colorMap copy. |
|
8933 |
||
8934 |
w := width - 1. |
|
8935 |
h := height - 1. |
|
8936 |
||
8937 |
0 to:h do:[:y | |
|
| 1642 | 8938 |
0 to:w do:[:x | |
8939 |
newImage atX:x y:y put:(pixelFunctionBlock |
|
8940 |
value:self |
|
8941 |
value:(self atX:x y:y) |
|
8942 |
value:x |
|
8943 |
value:y) |
|
8944 |
] |
|
| 692 | 8945 |
]. |
8946 |
^ newImage |
|
8947 |
||
8948 |
" |
|
| 1570 | 8949 |
|i black| |
| 692 | 8950 |
|
| 1509 | 8951 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
| 692 | 8952 |
i inspect. |
| 1570 | 8953 |
|
8954 |
black := Color black. |
|
8955 |
(i withPixelFunctionApplied:[:oldImage :oldColor :x :y | |
|
| 1642 | 8956 |
((x between:100 and:200) |
8957 |
and:[y between:100 and:200]) ifTrue:[ |
|
8958 |
oldColor |
|
8959 |
] ifFalse:[ |
|
8960 |
black. |
|
8961 |
] |
|
8962 |
]) inspect. |
|
| 692 | 8963 |
" |
8964 |
||
| 1570 | 8965 |
"Modified: 10.4.1997 / 16:35:10 / cg" |
| 1509 | 8966 |
! |
8967 |
||
8968 |
withPixelFunctionAppliedToValues:pixelFunctionBlock |
|
8969 |
"return a new image from the old one, by applying a pixel processor |
|
8970 |
on the pixel values. |
|
8971 |
(read `Behond photography, by Gerard J. Holzmann; |
|
| 1642 | 8972 |
ISBM 0-13-074410-7) |
| 1509 | 8973 |
See blurred / oilPointed as examples ...)" |
8974 |
||
| 1570 | 8975 |
|newImage newBits newBytesPerRow| |
| 1509 | 8976 |
|
8977 |
newBytesPerRow := ((width * self depth) + 7) // 8. |
|
8978 |
newBits := ByteArray uninitializedNew:(newBytesPerRow * height). |
|
8979 |
||
8980 |
newImage := self species new. |
|
8981 |
newImage bits:newBits. |
|
8982 |
newImage width:width. |
|
8983 |
newImage height:height. |
|
8984 |
newImage photometric:photometric. |
|
8985 |
newImage samplesPerPixel:samplesPerPixel. |
|
8986 |
newImage bitsPerSample:bitsPerSample. |
|
8987 |
newImage colorMap:colorMap copy. |
|
8988 |
||
| 1570 | 8989 |
self applyPixelValuesTo:pixelFunctionBlock into:newImage. |
| 1509 | 8990 |
^ newImage |
8991 |
||
8992 |
"oil painting effect: |
|
8993 |
||
8994 |
|i w h| |
|
8995 |
||
8996 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
|
8997 |
i inspect. |
|
8998 |
w := i width - 1. |
|
8999 |
h := i height - 1. |
|
| 1570 | 9000 |
(i withPixelFunctionAppliedToValues:[:oldImage :oldPixel :x :y | |
| 1642 | 9001 |
|b p max xMin xMax yMin yMax| |
9002 |
||
9003 |
b := Bag identityNew:10. |
|
9004 |
xMin := x-3 max:0. |
|
9005 |
xMax := x+3 min:w. |
|
9006 |
yMin := y-3 max:0. |
|
9007 |
yMax := y+3 min:h. |
|
9008 |
xMin to:xMax do:[:tx| |
|
9009 |
yMin to:yMax do:[:ty| |
|
9010 |
b add:(oldImage valueAtX:tx y:ty) |
|
9011 |
] |
|
9012 |
]. |
|
9013 |
max := 0. |
|
9014 |
b contents keysAndValuesDo:[:pixel :n | |
|
9015 |
n > max ifTrue:[ |
|
9016 |
p := pixel. |
|
9017 |
max := n |
|
9018 |
] |
|
9019 |
]. |
|
9020 |
p |
|
9021 |
]) inspect. |
|
| 1509 | 9022 |
" |
9023 |
||
9024 |
"fisheye effect: |
|
9025 |
||
| 1570 | 9026 |
|i w h w2 h2 R white| |
| 1509 | 9027 |
|
9028 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
|
9029 |
i inspect. |
|
9030 |
w := i width - 1. |
|
9031 |
h := i height - 1. |
|
9032 |
w2 := w // 2. |
|
9033 |
h2 := h // 2. |
|
| 1510 | 9034 |
R := w2. |
| 1570 | 9035 |
white := i valueFromColor:Color white. |
9036 |
(i withPixelFunctionAppliedToValues:[:oldImage :oldPixel :x :y | |
|
| 1642 | 9037 |
|p r a nR nP nX nY| |
9038 |
||
9039 |
p := (x-w2)@(y-h2). |
|
9040 |
r := p r. |
|
9041 |
a := p theta. |
|
9042 |
nR := r * r / R. |
|
9043 |
nP := Point r:nR theta:a. |
|
9044 |
nX := ((nP x+w2) rounded max:0) min:w. |
|
9045 |
nY := ((nP y+h2) rounded max:0) min:h. |
|
9046 |
(nX > w or:[nX < 0]) ifTrue:[ |
|
9047 |
white |
|
9048 |
] ifFalse:[ |
|
9049 |
(nY > h or:[nY < 0]) ifTrue:[ |
|
9050 |
white |
|
9051 |
] ifFalse:[ |
|
9052 |
oldImage valueAtX:nX y:nY |
|
9053 |
] |
|
9054 |
] |
|
9055 |
]) inspect. |
|
| 1509 | 9056 |
" |
| 1510 | 9057 |
"fisheye effect: |
9058 |
||
9059 |
|i w h w2 h2 R white| |
|
9060 |
||
9061 |
i := Image fromFile:'bitmaps/gifImages/claus.gif'. |
|
9062 |
i inspect. |
|
9063 |
w := i width - 1. |
|
9064 |
h := i height - 1. |
|
9065 |
w2 := w // 2. |
|
9066 |
h2 := h // 2. |
|
9067 |
R := w2. |
|
9068 |
white := i valueFromColor:Color white. |
|
| 1570 | 9069 |
(i withPixelFunctionAppliedToValues:[:oldImage :oldPixel :x :y | |
| 1642 | 9070 |
|p r a nR nP nX nY| |
9071 |
||
9072 |
p := (x-w2)@(y-h2). |
|
9073 |
r := p r. |
|
9074 |
a := p theta. |
|
9075 |
nR := r * r / R. |
|
9076 |
nP := Point r:nR theta:a. |
|
9077 |
nX := (nP x+w2) rounded. |
|
9078 |
nY := (nP y+h2) rounded. |
|
9079 |
(nX > w or:[nX < 0]) ifTrue:[ |
|
9080 |
white |
|
9081 |
] ifFalse:[ |
|
9082 |
(nY > h or:[nY < 0]) ifTrue:[ |
|
9083 |
white |
|
9084 |
] ifFalse:[ |
|
9085 |
oldImage valueAtX:nX y:nY |
|
9086 |
] |
|
9087 |
] |
|
9088 |
]) inspect. |
|
| 1510 | 9089 |
" |
| 1509 | 9090 |
|
9091 |
"Created: 1.4.1997 / 23:22:11 / cg" |
|
| 1570 | 9092 |
"Modified: 10.4.1997 / 16:42:05 / cg" |
| 283 | 9093 |
! ! |
9094 |
||
9095 |
!Image methodsFor:'inspecting'! |
|
9096 |
||
9097 |
inspectorClass |
|
9098 |
"redefined to launch an ImageInspector |
|
9099 |
(instead of the default InspectorView)." |
|
9100 |
||
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9101 |
(width notNil and:[height notNil]) ifTrue:[ |
| 1642 | 9102 |
^ ImageInspectorView |
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9103 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9104 |
^ super inspectorClass |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9105 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9106 |
"Modified: 10.6.1996 / 18:23:55 / cg" |
| 283 | 9107 |
! ! |
9108 |
||
9109 |
!Image methodsFor:'instance release'! |
|
9110 |
||
|
1650
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9111 |
close |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9112 |
"release device resources; destroy any device-resources" |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9113 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9114 |
deviceForm notNil ifTrue:[ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9115 |
deviceForm destroy. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9116 |
deviceForm := nil. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9117 |
]. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9118 |
monoDeviceForm notNil ifTrue:[ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9119 |
monoDeviceForm destroy. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9120 |
monoDeviceForm := nil. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9121 |
]. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9122 |
fullColorDeviceForm notNil ifTrue:[ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9123 |
fullColorDeviceForm destroy. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9124 |
fullColorDeviceForm := nil. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9125 |
]. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9126 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9127 |
device := nil. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9128 |
mask notNil ifTrue:[ |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9129 |
mask close. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9130 |
]. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9131 |
Lobby unregister:self. |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9132 |
|
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9133 |
"Modified: 21.6.1996 / 19:08:19 / cg" |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9134 |
"Created: 24.4.1997 / 11:55:20 / cg" |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9135 |
! |
|
eb56b36925fc
skip leading empty space in hardRotated (10-20% speedup);
Claus Gittinger <cg@exept.de>
parents:
1646
diff
changeset
|
9136 |
|
| 283 | 9137 |
disposed |
9138 |
"some Image has been collected - nothing to do" |
|
| 12 | 9139 |
! |
9140 |
||
|
1230
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
9141 |
quickRelease |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
9142 |
"release device resources" |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
9143 |
|
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
9144 |
device := nil. |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
9145 |
deviceForm := nil. |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
9146 |
monoDeviceForm := nil. |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
9147 |
fullColorDeviceForm := nil. |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
9148 |
|
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
9149 |
"Modified: 16.1.1997 / 19:33:01 / cg" |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
9150 |
! |
|
279016623d5a
resource release on display shutDown
Claus Gittinger <cg@exept.de>
parents:
1175
diff
changeset
|
9151 |
|
| 283 | 9152 |
release |
9153 |
"release device resources" |
|
9154 |
||
9155 |
device := nil. |
|
9156 |
deviceForm := nil. |
|
9157 |
monoDeviceForm := nil. |
|
9158 |
fullColorDeviceForm := nil. |
|
| 901 | 9159 |
mask notNil ifTrue:[ |
| 1642 | 9160 |
mask release. |
| 901 | 9161 |
]. |
9162 |
Lobby unregister:self. |
|
9163 |
||
9164 |
"Modified: 21.6.1996 / 19:08:19 / cg" |
|
| 46 | 9165 |
! |
9166 |
||
| 283 | 9167 |
restored |
9168 |
"flush device specifics after a snapin or binary restore" |
|
9169 |
||
9170 |
self release |
|
9171 |
! ! |
|
9172 |
||
| 592 | 9173 |
!Image methodsFor:'obsolete'! |
9174 |
||
9175 |
magnifyBy:scale |
|
9176 |
"obsolete: has been renamed to magnifiedBy: for ST-80 compatibility |
|
9177 |
and name consistency ..." |
|
9178 |
||
9179 |
self obsoleteMethodWarning. |
|
9180 |
^ self magnifiedBy:scale |
|
9181 |
! ! |
|
9182 |
||
| 283 | 9183 |
!Image methodsFor:'pixel copying'! |
9184 |
||
9185 |
copyFrom:anImage x:srcX y:srcY toX:dstX y:dstY width:w height:h |
|
| 1248 | 9186 |
"replace a rectangular area by pixels from another image. |
| 283 | 9187 |
WARNING: |
| 1248 | 9188 |
|
9189 |
This implementation is a very slow fallback general algorithm |
|
9190 |
(the loop over the source pixels is very slow). |
|
9191 |
If this method is used heavily, you may want to redefine it in |
|
9192 |
concrete subclasses for the common case of of copying from an Image |
|
9193 |
with the same depth & palette. |
|
9194 |
If you do heavy image processing, specialized versions are even req'd |
|
9195 |
for other cases, rewriting the inner loops as inline C-code." |
|
| 283 | 9196 |
|
9197 |
|dX dY| |
|
9198 |
||
9199 |
dX := srcX-dstX. |
|
9200 |
dY := srcY-dstY. |
|
| 1248 | 9201 |
|
| 283 | 9202 |
((photometric == anImage photometric) |
9203 |
and:[self bitsPerPixel == anImage bitsPerPixel |
|
9204 |
and:[colorMap = anImage colorMap]]) ifTrue:[ |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9205 |
"/ can loop over values |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9206 |
anImage valuesFromX:srcX y:srcY |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9207 |
toX:srcX+w-1 y:srcY+h-1 |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9208 |
do:[:x :y :pixelValue | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9209 |
self pixelAtX:x-dX y:y-dY put:pixelValue. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9210 |
] |
| 283 | 9211 |
] ifFalse:[ |
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9212 |
"/ must loop over colors - horribly slow |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9213 |
anImage colorsFromX:srcX y:srcY |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9214 |
toX:srcX+w-1 y:srcY+h-1 |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9215 |
do:[:x :y :clr | |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9216 |
self atX:x-dX y:y-dY put:clr. |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9217 |
] |
| 283 | 9218 |
] |
9219 |
||
9220 |
" |
|
9221 |
|i1 i8 i4| |
|
9222 |
||
9223 |
i8 := Image fromFile:'bitmaps/garfield.gif'. |
|
9224 |
i8 inspect. |
|
9225 |
i1 := Image fromFile:'bitmaps/SBrowser.xbm'. |
|
9226 |
i1 inspect. |
|
9227 |
||
9228 |
i4 := Depth4Image fromImage:i8. |
|
9229 |
i4 copyFrom:i1 x:0 y:0 toX:20 y:20 width:30 height:30. |
|
9230 |
i4 inspect. |
|
9231 |
" |
|
9232 |
||
9233 |
"Created: 20.9.1995 / 10:14:01 / claus" |
|
9234 |
"Modified: 20.9.1995 / 10:25:31 / claus" |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9235 |
"Modified: 24.4.1997 / 17:27:14 / cg" |
| 283 | 9236 |
! |
9237 |
||
9238 |
subImageIn:aRectangle |
|
9239 |
"create and return a new image consisting of a subArea of myself" |
|
9240 |
||
9241 |
^ self class fromSubImage:self in:aRectangle |
|
9242 |
||
9243 |
" |
|
9244 |
|i| |
|
9245 |
||
9246 |
i := Image fromFile:'bitmaps/garfield.gif'. |
|
9247 |
i inspect. |
|
9248 |
(i subImageIn:(300@160 corner:340@200)) inspect |
|
9249 |
" |
|
9250 |
||
9251 |
"Created: 20.9.1995 / 01:24:20 / claus" |
|
9252 |
! ! |
|
9253 |
||
9254 |
!Image methodsFor:'printing & storing'! |
|
9255 |
||
9256 |
storeOn:aStream |
|
| 592 | 9257 |
"append a printed representation of the receiver to aStream, |
9258 |
from which a copy of it can be reconstructed." |
|
9259 |
||
| 283 | 9260 |
aStream nextPutAll:'(' , self class name , ' new)'.
|
9261 |
aStream nextPutAll:' width: '. width storeOn:aStream. |
|
9262 |
aStream nextPutAll:'; height: '. height storeOn:aStream. |
|
9263 |
aStream nextPutAll:'; photometric:('. photometric storeOn:aStream.
|
|
9264 |
aStream nextPutAll:'); bitsPerSample:('. bitsPerSample storeOn:aStream.
|
|
9265 |
aStream nextPutAll:'); samplesPerPixel:('. samplesPerPixel storeOn:aStream.
|
|
9266 |
aStream nextPutAll:'); bits:('. bytes storeOn:aStream. aStream nextPutAll:') '.
|
|
9267 |
colorMap notNil ifTrue:[ |
|
| 1642 | 9268 |
aStream nextPutAll:'; colorMap:('.
|
9269 |
colorMap storeOn:aStream. |
|
9270 |
aStream nextPutAll:')'. |
|
| 283 | 9271 |
]. |
9272 |
aStream nextPutAll:'; yourself' |
|
| 592 | 9273 |
|
9274 |
"Modified: 23.4.1996 / 11:18:05 / cg" |
|
| 0 | 9275 |
! ! |
9276 |
||
9277 |
!Image methodsFor:'private'! |
|
9278 |
||
| 193 | 9279 |
bestSupportedImageFormatFor:aDevice |
9280 |
"scan through the image formats as supported by aDevice, |
|
9281 |
and return the best to use when the receiver is to be represented |
|
9282 |
on it. The best format is the one with the same number or more bits per |
|
|
235
579f3f804a46
padding info in supportedFormats
Claus Gittinger <cg@exept.de>
parents:
230
diff
changeset
|
9283 |
pixel. Here, the smallest format found which can represent enough pixels is taken." |
|
579f3f804a46
padding info in supportedFormats
Claus Gittinger <cg@exept.de>
parents:
230
diff
changeset
|
9284 |
|
| 1595 | 9285 |
|bestDeviceDepth bestDeviceBitsPerPixel bestInfo maxInfo myDepth "maxDepth" maxBitsPerPixel | |
| 193 | 9286 |
|
9287 |
myDepth := self bitsPerPixel. |
|
9288 |
maxBitsPerPixel := 0. |
|
9289 |
||
9290 |
aDevice supportedImageFormats do:[:entry | |
|
| 1642 | 9291 |
|deviceImageDepth deviceImageBitsPerPixel| |
9292 |
||
9293 |
deviceImageDepth := entry at:#depth. |
|
9294 |
deviceImageBitsPerPixel := entry at:#bitsPerPixel. |
|
9295 |
||
9296 |
deviceImageBitsPerPixel > maxBitsPerPixel ifTrue:[ |
|
9297 |
maxInfo := entry. |
|
|
235
579f3f804a46
padding info in supportedFormats
Claus Gittinger <cg@exept.de>
parents:
230
diff
changeset
|
9298 |
"/ maxBitsPerPixel := deviceImageBitsPerPixel. |
|
579f3f804a46
padding info in supportedFormats
Claus Gittinger <cg@exept.de>
parents:
230
diff
changeset
|
9299 |
"/ maxDepth := deviceImageDepth. |
| 1642 | 9300 |
]. |
9301 |
||
9302 |
deviceImageDepth >= myDepth ifTrue:[ |
|
9303 |
deviceImageDepth == myDepth ifTrue:[ |
|
9304 |
"/ take the better one ... |
|
9305 |
(bestDeviceDepth isNil |
|
9306 |
or:[(bestDeviceBitsPerPixel ~~ bestDeviceDepth) |
|
9307 |
and:[deviceImageDepth == deviceImageBitsPerPixel]]) ifTrue:[ |
|
9308 |
bestInfo := entry. |
|
9309 |
bestDeviceDepth := deviceImageDepth. |
|
9310 |
bestDeviceBitsPerPixel := deviceImageBitsPerPixel. |
|
9311 |
] |
|
9312 |
] ifFalse:[ |
|
9313 |
"/ take the next-larger depth |
|
9314 |
(bestDeviceDepth isNil |
|
9315 |
or:[deviceImageBitsPerPixel < bestDeviceBitsPerPixel]) ifTrue:[ |
|
9316 |
bestInfo := entry. |
|
9317 |
bestDeviceDepth := deviceImageDepth. |
|
9318 |
bestDeviceBitsPerPixel := deviceImageBitsPerPixel. |
|
9319 |
] |
|
9320 |
] |
|
9321 |
]. |
|
| 193 | 9322 |
]. |
|
851
c9511f8945ce
fixed bug in bestSupportedImageFormat (with 15-bit trueColor servers)
Claus Gittinger <cg@exept.de>
parents:
841
diff
changeset
|
9323 |
|
| 193 | 9324 |
bestDeviceDepth isNil ifTrue:[ |
| 1642 | 9325 |
maxBitsPerPixel == 0 ifTrue:[ |
9326 |
"/ |
|
9327 |
"/ oops - nothing appropriate |
|
9328 |
"/ |
|
9329 |
maxInfo notNil ifTrue:[ |
|
9330 |
^ maxInfo |
|
9331 |
]. |
|
9332 |
bestDeviceDepth := bestDeviceBitsPerPixel := aDevice depth. |
|
9333 |
bestInfo := IdentityDictionary new. |
|
9334 |
bestInfo at:#depth put:bestDeviceDepth. |
|
9335 |
bestInfo at:#bitsPerPixel put:bestDeviceBitsPerPixel. |
|
9336 |
bestInfo at:#padding put:32. |
|
9337 |
] ifFalse:[ |
|
9338 |
bestInfo := maxInfo. |
|
9339 |
] |
|
| 193 | 9340 |
]. |
|
235
579f3f804a46
padding info in supportedFormats
Claus Gittinger <cg@exept.de>
parents:
230
diff
changeset
|
9341 |
^ bestInfo |
|
579f3f804a46
padding info in supportedFormats
Claus Gittinger <cg@exept.de>
parents:
230
diff
changeset
|
9342 |
|
|
851
c9511f8945ce
fixed bug in bestSupportedImageFormat (with 15-bit trueColor servers)
Claus Gittinger <cg@exept.de>
parents:
841
diff
changeset
|
9343 |
"Modified: 14.6.1996 / 14:46:40 / cg" |
| 283 | 9344 |
! |
9345 |
||
9346 |
colormapFromImage:anImage |
|
9347 |
"setup the receivers colormap from another image. |
|
9348 |
Color precision may be lost, if conversion is from a higher depth |
|
9349 |
image. This does not convert any pixel values; it is non-public helper |
|
9350 |
for fromImage:/fromSubImake:" |
|
9351 |
||
9352 |
samplesPerPixel == 3 ifTrue:[ |
|
| 1642 | 9353 |
photometric := #rgb |
| 283 | 9354 |
] ifFalse:[ |
| 1642 | 9355 |
photometric := anImage photometric. |
9356 |
photometric == #palette ifTrue:[ |
|
9357 |
colorMap := anImage colorMap copy. |
|
9358 |
" |
|
9359 |
must compress the colormap, if source image has higher depth |
|
9360 |
than myself. |
|
9361 |
" |
|
9362 |
anImage bitsPerPixel > self bitsPerPixel ifTrue:[ |
|
9363 |
" |
|
9364 |
get used colors are extracted into our colorMap |
|
9365 |
(the at-put below will set the pixelValue according the |
|
9366 |
new colorIndex |
|
9367 |
" |
|
9368 |
colorMap := anImage usedColors asArray. |
|
9369 |
colorMap size > (1 bitShift:self bitsPerPixel) ifTrue:[ |
|
9370 |
'Image [warning]: possibly too many colors in image' errorPrintCR |
|
9371 |
] |
|
9372 |
] |
|
9373 |
] |
|
| 283 | 9374 |
]. |
9375 |
||
9376 |
"Created: 20.9.1995 / 00:58:42 / claus" |
|
|
1175
5595569cfbd3
newStyle info & error messages
Claus Gittinger <cg@exept.de>
parents:
1170
diff
changeset
|
9377 |
"Modified: 10.1.1997 / 17:52:21 / cg" |
| 283 | 9378 |
! |
9379 |
||
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9380 |
greyByteMapForRange:range |
| 798 | 9381 |
"return a collection to map from pixelValues to greyLevels |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9382 |
in the range 0..range. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9383 |
Range must be < 256 (for elements to fit into a ByteArray). |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9384 |
The values are rounded towards the nearest pixel." |
| 798 | 9385 |
|
| 1403 | 9386 |
|d clr val greyMap r |
9387 |
n "{ Class: SmallInteger }"|
|
|
| 808 | 9388 |
|
9389 |
r := range. |
|
9390 |
r == 256 ifTrue:[ |
|
| 1642 | 9391 |
r := 255 |
| 798 | 9392 |
]. |
9393 |
||
9394 |
photometric == #palette ifTrue:[ |
|
| 1642 | 9395 |
n := colorMap size. |
9396 |
greyMap := ByteArray new:n. |
|
9397 |
||
9398 |
1 to:n do:[:i | |
|
9399 |
(clr := colorMap at:i) isNil ifTrue:[ |
|
9400 |
"/ an unused color |
|
9401 |
val := 0. |
|
9402 |
] ifFalse:[ |
|
9403 |
val := (r * clr brightness) rounded |
|
9404 |
]. |
|
9405 |
greyMap at:i put:val |
|
9406 |
]. |
|
| 798 | 9407 |
] ifFalse:[ |
| 1642 | 9408 |
d := self bitsPerPixel. |
9409 |
n := 1 bitShift:d. |
|
9410 |
n >= 4096 ifTrue:[ |
|
9411 |
self error:'size not supported - too large'. |
|
9412 |
^ nil |
|
9413 |
]. |
|
9414 |
greyMap := ByteArray new:n. |
|
9415 |
||
9416 |
||
9417 |
photometric == #rgb ifTrue:[ |
|
9418 |
1 to:n do:[:i | |
|
9419 |
greyMap at:i put:(r * (self colorFromValue:i-1) brightness) rounded |
|
9420 |
]. |
|
9421 |
] ifFalse:[ |
|
9422 |
1 to:n do:[:i | |
|
9423 |
greyMap at:i put:(r / (n-1) * (i-1)) rounded |
|
9424 |
]. |
|
9425 |
photometric == #blackIs0 ifTrue:[ |
|
9426 |
"/ we are done |
|
9427 |
] ifFalse:[ |
|
9428 |
photometric == #whiteIs0 ifTrue:[ |
|
9429 |
greyMap reverse |
|
9430 |
] ifFalse:[ |
|
9431 |
self error:'invalid format'. |
|
9432 |
^ nil |
|
9433 |
] |
|
9434 |
] |
|
9435 |
]. |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9436 |
]. |
| 808 | 9437 |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9438 |
^ greyMap |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9439 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9440 |
" |
| 808 | 9441 |
Depth8Image new greyByteMapForRange:256 |
9442 |
||
9443 |
Depth8Image new greyByteMapForRange:64 |
|
9444 |
Depth4Image new greyByteMapForRange:64 |
|
9445 |
||
9446 |
Depth4Image new greyByteMapForRange:1 |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9447 |
" |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9448 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9449 |
"Created: 8.6.1996 / 08:34:14 / cg" |
| 1403 | 9450 |
"Modified: 1.3.1997 / 17:24:45 / cg" |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9451 |
! |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9452 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9453 |
greyMapForRange:range |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9454 |
"return a collection to map from pixelValues to greyLevels |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9455 |
in the range 0..range. The brightness values are not rounded." |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9456 |
|
| 1403 | 9457 |
|d r clr val |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9458 |
n "{Class: SmallInteger }"
|
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9459 |
greyArray| |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9460 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9461 |
d := self bitsPerPixel. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9462 |
n := 1 bitShift:d. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9463 |
n >= 4096 ifTrue:[ |
| 1642 | 9464 |
self error:'size not supported - too large'. |
9465 |
^ nil |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9466 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9467 |
|
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9468 |
greyArray := Array new:n. |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9469 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9470 |
photometric == #palette ifTrue:[ |
| 1642 | 9471 |
n := colorMap size. |
9472 |
1 to:n do:[:i | |
|
9473 |
(clr := colorMap at:i) isNil ifTrue:[ |
|
9474 |
"/ an unused color |
|
9475 |
val := 0. |
|
9476 |
] ifFalse:[ |
|
9477 |
val := range * clr brightness |
|
9478 |
]. |
|
9479 |
greyArray at:i put:val |
|
9480 |
]. |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9481 |
] ifFalse:[ |
| 1642 | 9482 |
photometric == #rgb ifTrue:[ |
9483 |
1 to:n do:[:i | |
|
9484 |
greyArray at:i put:(range * (self colorFromValue:(i-1)) brightness) |
|
9485 |
] |
|
9486 |
] ifFalse:[ |
|
9487 |
r := range asFloat. |
|
9488 |
1 to:n do:[:i | |
|
9489 |
greyArray at:i put:(r / (n-1) * (i-1)) |
|
9490 |
]. |
|
9491 |
photometric == #blackIs0 ifTrue:[ |
|
9492 |
"/ we are done |
|
9493 |
] ifFalse:[ |
|
9494 |
photometric == #whiteIs0 ifTrue:[ |
|
9495 |
greyArray reverse |
|
9496 |
] ifFalse:[ |
|
9497 |
self error:'invalid format'. |
|
9498 |
^ nil |
|
9499 |
] |
|
9500 |
] |
|
9501 |
] |
|
| 798 | 9502 |
]. |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9503 |
^ greyArray |
| 798 | 9504 |
|
9505 |
" |
|
9506 |
Depth8Image new greyMapForRange:64 |
|
9507 |
Depth4Image new greyMapForRange:64 |
|
9508 |
||
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9509 |
Depth16Image new greyMapForRange:1 |
| 798 | 9510 |
Depth4Image new greyMapForRange:1 |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9511 |
Depth2Image new greyMapForRange:1 |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9512 |
" |
|
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9513 |
|
| 1403 | 9514 |
"Modified: 1.3.1997 / 15:48:49 / cg" |
| 798 | 9515 |
! |
9516 |
||
| 283 | 9517 |
magnifyRowFrom:srcBytes offset:srcStart pixels:oldPixels |
9518 |
into:dstBytes offset:dstStart factor:mX |
|
9519 |
||
9520 |
"magnify a single pixel row - can only magnify by integer factors, |
|
9521 |
can only magnify 1,2,4,8 and 24 bit-per-pixel images. But this is done fast." |
|
9522 |
||
9523 |
^ self subclassResponsibility |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9524 |
! |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9525 |
|
| 816 | 9526 |
makeDeviceGrayPixmapOn:aDevice depth:depth fromArray:bits |
9527 |
"given the bits of a grey/color bitmap, 8-bit padded and |
|
9528 |
pixels interpreted as greyValues, 0 is black, |
|
9529 |
create a device form for it" |
|
9530 |
||
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9531 |
|f| |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9532 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9533 |
f := Form width:width height:height depth:depth on:aDevice. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9534 |
f isNil ifTrue:[^ nil]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9535 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9536 |
f bits:bits. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9537 |
f initGC. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9538 |
|
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9539 |
(aDevice blackpixel ~~ 0) ifTrue:[ |
| 1642 | 9540 |
"/ have to invert bits |
9541 |
f function:#copyInverted |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9542 |
]. |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9543 |
aDevice drawBits:bits depth:depth |
| 1642 | 9544 |
width:width height:height |
9545 |
x:0 y:0 |
|
9546 |
into:(f id) |
|
9547 |
x:0 y:0 |
|
9548 |
width:width height:height |
|
9549 |
with:(f gcId). |
|
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9550 |
^ f |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9551 |
|
| 816 | 9552 |
"Created: 10.6.1996 / 20:10:31 / cg" |
9553 |
! |
|
9554 |
||
9555 |
makeDeviceMonochromeBitmapOn:aDevice fromArray:monoBits |
|
9556 |
"given the bits of a monochrome bitmap, 8-bit padded and |
|
9557 |
0-bits as black, create a device form for it" |
|
9558 |
||
| 1608 | 9559 |
"/ monoBits invert. |
| 816 | 9560 |
^ (Form width:width height:height fromArray:monoBits on:aDevice) |
| 1642 | 9561 |
colorMap:(Array with:Color black with:Color white). |
| 816 | 9562 |
|
9563 |
"Created: 10.6.1996 / 20:18:09 / cg" |
|
| 1608 | 9564 |
"Modified: 17.4.1997 / 01:07:38 / cg" |
| 816 | 9565 |
! |
9566 |
||
9567 |
makeDevicePixmapOn:aDevice depth:depth fromArray:bits |
|
9568 |
"given the bits of a grey/color bitmap, 8-bit padded and |
|
9569 |
pixels interpreted as in the devices colormap, |
|
9570 |
create a device form for it" |
|
9571 |
||
9572 |
|f| |
|
9573 |
||
9574 |
f := Form width:width height:height depth:depth on:aDevice. |
|
9575 |
f isNil ifTrue:[^ nil]. |
|
9576 |
||
9577 |
f bits:bits. |
|
9578 |
f initGC. |
|
9579 |
||
9580 |
aDevice drawBits:bits depth:depth |
|
| 1642 | 9581 |
width:width height:height |
9582 |
x:0 y:0 |
|
9583 |
into:(f id) |
|
9584 |
x:0 y:0 |
|
9585 |
width:width height:height |
|
9586 |
with:(f gcId). |
|
| 816 | 9587 |
^ f |
9588 |
||
|
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
809
diff
changeset
|
9589 |
"Created: 10.6.1996 / 17:56:08 / cg" |
| 816 | 9590 |
"Modified: 10.6.1996 / 20:11:27 / cg" |
| 2 | 9591 |
! ! |
| 0 | 9592 |
|
| 283 | 9593 |
!Image methodsFor:'queries'! |
9594 |
||
9595 |
averageColor |
|
9596 |
"return the average color of the image. |
|
9597 |
This usually only makes sense for textures and patterns |
|
9598 |
(i.e. to compute shadow & light colors for viewBackgrounds). |
|
9599 |
Notice, that for the above purpose, it is usually ok to process |
|
9600 |
a subImage - i.e. use Image>>averageColorIn: on a smaller rectangle" |
|
9601 |
||
9602 |
^ self averageColorIn:(0@0 corner:(width-1)@(height-1)) |
|
9603 |
! |
|
9604 |
||
9605 |
averageColorIn:aRectangle |
|
9606 |
"return the images average color in an area. |
|
9607 |
The implementation below is slow - so you may want to |
|
9608 |
create tuned versions for DepthXImage if you plan to do |
|
9609 |
heavy image processing ... |
|
9610 |
(also, creating tuned versions of the enumeration messages helps a lot)" |
|
9611 |
||
9612 |
|x0 "{ Class:SmallInteger }"
|
|
9613 |
y0 "{ Class:SmallInteger }"
|
|
9614 |
x1 "{ Class:SmallInteger }"
|
|
9615 |
y1 "{ Class:SmallInteger }"
|
|
9616 |
sumRed sumGreen sumBlue n| |
|
9617 |
||
9618 |
sumRed := sumGreen := sumBlue := 0. |
|
9619 |
y0 := aRectangle top. |
|
9620 |
y1 := aRectangle bottom. |
|
9621 |
x0 := aRectangle left. |
|
9622 |
x1 := aRectangle right. |
|
9623 |
||
9624 |
self colorsFromX:x0 y:y0 toX:x1 y:y1 do:[:x :y :colorAtXY | |
|
9625 |
sumRed := sumRed + colorAtXY red. |
|
9626 |
sumGreen := sumGreen + colorAtXY green. |
|
9627 |
sumBlue := sumBlue + colorAtXY blue. |
|
9628 |
]. |
|
9629 |
n := (x1 - x0 + 1) * (y1 - y0 + 1). |
|
9630 |
^ Color red:(sumRed / n) green:(sumGreen / n) blue:(sumBlue / n) |
|
9631 |
! |
|
9632 |
||
9633 |
bitsPerPixel |
|
9634 |
"return the number of bits per pixel" |
|
9635 |
||
9636 |
^ (bitsPerSample inject:0 into:[:sum :i | sum + i]) |
|
9637 |
! |
|
9638 |
||
9639 |
bitsPerRow |
|
9640 |
"return the number of bits in one scanline of the image" |
|
9641 |
||
9642 |
^ width * (self bitsPerPixel). |
|
9643 |
! |
|
9644 |
||
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9645 |
blueBitsOf:pixel |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9646 |
"if the receiver is an rgb-image: |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9647 |
return the blue bits of a pixelValue. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9648 |
This has to be redefined by subclasses." |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9649 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9650 |
|blueBits| |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9651 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9652 |
samplesPerPixel >= 3 ifTrue:[ |
| 1642 | 9653 |
"/ assume that the red bits are the leftMost bits |
9654 |
||
9655 |
blueBits := bitsPerSample at:3. |
|
9656 |
blueBits == 0 ifTrue:[^ 0]. |
|
9657 |
||
9658 |
^ pixel bitAnd:(1 bitShift:blueBits)-1 |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9659 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9660 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9661 |
self subclassResponsibility |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9662 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9663 |
"Created: 8.6.1996 / 09:44:21 / cg" |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9664 |
"Modified: 10.6.1996 / 14:59:44 / cg" |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9665 |
! |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9666 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9667 |
blueComponentOf:pixel |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9668 |
"if the receiver is an rgb-image: |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9669 |
return the blue component (0 .. 100) of a pixelValue. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9670 |
This has to be redefined by subclasses." |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9671 |
|
| 854 | 9672 |
|blueBits "{ Class: SmallInteger }"
|
9673 |
s "{ Class: SmallInteger }"|
|
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9674 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9675 |
samplesPerPixel >= 3 ifTrue:[ |
| 1642 | 9676 |
"/ assume that the red bits are the leftMost bits |
9677 |
||
9678 |
blueBits := bitsPerSample at:3. |
|
9679 |
blueBits == 0 ifTrue:[^ 0]. |
|
9680 |
||
9681 |
s := (1 bitShift:blueBits) - 1. |
|
9682 |
||
9683 |
^ 100.0 / s * (pixel bitAnd:(1 bitShift:blueBits)-1) |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9684 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9685 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9686 |
self subclassResponsibility |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9687 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9688 |
"Created: 8.6.1996 / 08:45:22 / cg" |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9689 |
"Modified: 10.6.1996 / 14:55:39 / cg" |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9690 |
! |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9691 |
|
|
680
a905d02dcb82
added #bounds (for VisualComponent protocol compatibility)
Claus Gittinger <cg@exept.de>
parents:
674
diff
changeset
|
9692 |
bounds |
|
a905d02dcb82
added #bounds (for VisualComponent protocol compatibility)
Claus Gittinger <cg@exept.de>
parents:
674
diff
changeset
|
9693 |
"return my bounds (added to make images usable as VisualComponents)" |
|
a905d02dcb82
added #bounds (for VisualComponent protocol compatibility)
Claus Gittinger <cg@exept.de>
parents:
674
diff
changeset
|
9694 |
|
|
a905d02dcb82
added #bounds (for VisualComponent protocol compatibility)
Claus Gittinger <cg@exept.de>
parents:
674
diff
changeset
|
9695 |
^ Rectangle left:0 top:0 width:width height:height |
|
a905d02dcb82
added #bounds (for VisualComponent protocol compatibility)
Claus Gittinger <cg@exept.de>
parents:
674
diff
changeset
|
9696 |
|
|
a905d02dcb82
added #bounds (for VisualComponent protocol compatibility)
Claus Gittinger <cg@exept.de>
parents:
674
diff
changeset
|
9697 |
"Created: 13.5.1996 / 10:27:06 / cg" |
|
a905d02dcb82
added #bounds (for VisualComponent protocol compatibility)
Claus Gittinger <cg@exept.de>
parents:
674
diff
changeset
|
9698 |
! |
|
a905d02dcb82
added #bounds (for VisualComponent protocol compatibility)
Claus Gittinger <cg@exept.de>
parents:
674
diff
changeset
|
9699 |
|
| 283 | 9700 |
brightness |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9701 |
"return the (average) brightness of the image. |
| 283 | 9702 |
This usually only makes sense for textures and patterns |
9703 |
(i.e. to compute shadow & light colors for viewBackgrounds). |
|
9704 |
Notice, that for the above purpose, only a subimage is inspected here" |
|
9705 |
||
9706 |
^ (self averageColorIn:(0@0 corner:7@7)) brightness |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9707 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9708 |
"Modified: 8.6.1996 / 08:46:46 / cg" |
| 283 | 9709 |
! |
9710 |
||
9711 |
bytesPerRow |
|
9712 |
"return the number of bytes in one scanline of the image" |
|
9713 |
||
9714 |
|bitsPerRow bytesPerRow| |
|
9715 |
||
9716 |
bitsPerRow := width * (self bitsPerPixel). |
|
9717 |
bytesPerRow := bitsPerRow // 8. |
|
9718 |
((bitsPerRow \\ 8) ~~ 0) ifTrue:[ |
|
9719 |
bytesPerRow := bytesPerRow + 1 |
|
9720 |
]. |
|
9721 |
^ bytesPerRow |
|
9722 |
! |
|
9723 |
||
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9724 |
colorFromValue:pixelValue |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9725 |
"given a pixel value, return the corresponding color. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9726 |
Pixel values start with 0." |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9727 |
|
| 1289 | 9728 |
|p maxPixel r g b| |
9729 |
||
9730 |
p := photometric. |
|
9731 |
p isNil ifTrue:[ |
|
| 1642 | 9732 |
colorMap notNil ifTrue:[ |
9733 |
p := #palette |
|
9734 |
] ifFalse:[ |
|
| 1289 | 9735 |
"/ 'Image [warning]: no photometric - assume greyscale' infoPrintCR |
| 1642 | 9736 |
p := #blackIs0 |
9737 |
] |
|
| 1289 | 9738 |
]. |
9739 |
||
9740 |
p == #blackIs0 ifTrue:[ |
|
| 1642 | 9741 |
maxPixel := (1 bitShift:self bitsPerPixel) - 1. |
9742 |
^ Color gray:(pixelValue * (100 / maxPixel)). |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9743 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9744 |
|
| 1289 | 9745 |
p == #whiteIs0 ifTrue:[ |
| 1642 | 9746 |
maxPixel := (1 bitShift:self bitsPerPixel) - 1. |
9747 |
^ Color gray:100 - (pixelValue * (100 / maxPixel)). |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9748 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9749 |
|
| 1289 | 9750 |
p == #palette ifTrue:[ |
| 1642 | 9751 |
pixelValue >= colorMap size ifTrue:[ |
9752 |
^ Color black |
|
9753 |
]. |
|
9754 |
^ colorMap at:(pixelValue + 1) |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9755 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9756 |
|
| 1289 | 9757 |
p == #rgb ifTrue:[ |
| 1642 | 9758 |
r := self redComponentOf:pixelValue. |
9759 |
g := self greenComponentOf:pixelValue. |
|
9760 |
b := self blueComponentOf:pixelValue. |
|
9761 |
^ Color red:r green:g blue:b |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9762 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9763 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9764 |
self error:'invalid photometric' |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9765 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9766 |
"Created: 8.6.1996 / 08:46:18 / cg" |
| 1289 | 9767 |
"Modified: 28.1.1997 / 12:05:22 / cg" |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9768 |
! |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9769 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9770 |
greenBitsOf:pixel |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9771 |
"if the receiver is an rgb-image: |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9772 |
return the green bits of a pixelValue. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9773 |
This has to be redefined by subclasses." |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9774 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9775 |
|blueBits greenBits| |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9776 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9777 |
samplesPerPixel >= 3 ifTrue:[ |
| 1642 | 9778 |
"/ assume that the red bits are the leftMost bits |
9779 |
||
9780 |
greenBits := bitsPerSample at:2. |
|
9781 |
greenBits == 0 ifTrue:[^ 0]. |
|
9782 |
blueBits := bitsPerSample at:3. |
|
9783 |
||
9784 |
^ (pixel bitShift:blueBits negated) bitAnd:(1 bitShift:greenBits)-1 |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9785 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9786 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9787 |
self subclassResponsibility |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9788 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9789 |
"Created: 8.6.1996 / 09:44:37 / cg" |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9790 |
"Modified: 10.6.1996 / 14:59:35 / cg" |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9791 |
! |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9792 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9793 |
greenComponentOf:pixel |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9794 |
"if the receiver is an rgb-image: |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9795 |
return the green component (0..100) of a pixelValue. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9796 |
This has to be redefined by subclasses." |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9797 |
|
| 854 | 9798 |
|greenBits "{ Class: SmallInteger }"
|
9799 |
blueBits "{ Class: SmallInteger }"
|
|
9800 |
s "{ Class: SmallInteger }"|
|
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9801 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9802 |
samplesPerPixel >= 3 ifTrue:[ |
| 1642 | 9803 |
"/ assume that the red bits are the leftMost bits |
9804 |
||
9805 |
greenBits := bitsPerSample at:2. |
|
9806 |
greenBits == 0 ifTrue:[^ 0]. |
|
9807 |
blueBits := bitsPerSample at:3. |
|
9808 |
||
9809 |
s := (1 bitShift:greenBits) - 1. |
|
9810 |
||
9811 |
^ 100.0 / s * ((pixel bitShift:blueBits negated) bitAnd:(1 bitShift:greenBits)-1) |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9812 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9813 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9814 |
self subclassResponsibility |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9815 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9816 |
"Created: 8.6.1996 / 08:45:34 / cg" |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9817 |
"Modified: 10.6.1996 / 14:55:24 / cg" |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9818 |
! |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9819 |
|
| 674 | 9820 |
heightOn:aGC |
9821 |
"return my height, if displayed on aGC; |
|
9822 |
since my height is independent of the device (the number of pixels), |
|
9823 |
return the pixel-height" |
|
9824 |
||
|
680
a905d02dcb82
added #bounds (for VisualComponent protocol compatibility)
Claus Gittinger <cg@exept.de>
parents:
674
diff
changeset
|
9825 |
^ height |
| 674 | 9826 |
|
9827 |
"Created: 12.5.1996 / 21:35:06 / cg" |
|
|
680
a905d02dcb82
added #bounds (for VisualComponent protocol compatibility)
Claus Gittinger <cg@exept.de>
parents:
674
diff
changeset
|
9828 |
"Modified: 13.5.1996 / 10:26:36 / cg" |
| 674 | 9829 |
! |
9830 |
||
| 283 | 9831 |
isImage |
9832 |
"return true, if the receiver is some kind of image; |
|
9833 |
true is returned here - the method is redefined from Object." |
|
9834 |
||
9835 |
^ true |
|
9836 |
! |
|
9837 |
||
9838 |
isImageOrForm |
|
9839 |
"return true, if the receiver is some kind of image or form; |
|
9840 |
true is returned here - the method is redefined from Object." |
|
9841 |
||
9842 |
^ true |
|
9843 |
! |
|
9844 |
||
| 1630 | 9845 |
isMask |
9846 |
^ false |
|
9847 |
||
9848 |
"Created: 22.4.1997 / 14:12:02 / cg" |
|
9849 |
! |
|
9850 |
||
| 1433 | 9851 |
pixelArraySpecies |
9852 |
"return the kind of pixel-value container in rowAt:/rowAt:put: methods" |
|
9853 |
||
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9854 |
self depth > 8 ifTrue:[ |
|
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9855 |
^ Array |
| 1433 | 9856 |
]. |
9857 |
^ ByteArray |
|
9858 |
||
9859 |
"Created: 6.3.1997 / 15:24:05 / cg" |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
9860 |
"Modified: 24.4.1997 / 15:34:34 / cg" |
| 1433 | 9861 |
! |
9862 |
||
| 940 | 9863 |
realColorMap |
9864 |
"return a collection usable as a real colormap of the image. |
|
9865 |
For palette images, this is the internal colormap; |
|
9866 |
for other photometrics (which do not have a real colormap), synthesize one. |
|
9867 |
This is different from #colorMap, which returns nil for non palette images." |
|
9868 |
||
9869 |
|d nEntries "{ Class: SmallInteger }"
|
|
9870 |
colorArray| |
|
9871 |
||
9872 |
photometric == #palette ifTrue:[ |
|
| 1642 | 9873 |
^ colorMap asArray |
| 940 | 9874 |
]. |
9875 |
||
9876 |
d := self depth. |
|
9877 |
d > 12 ifTrue:[ |
|
| 1642 | 9878 |
self error:'deep palette images not supported'. |
9879 |
^ nil. |
|
| 940 | 9880 |
]. |
9881 |
||
9882 |
nEntries := 1 bitShift:d. |
|
9883 |
||
9884 |
colorArray := Array new:nEntries. |
|
9885 |
1 to:nEntries do:[:idx | |
|
| 1642 | 9886 |
colorArray at:idx put:(self colorFromValue:(idx-1)). |
| 940 | 9887 |
]. |
9888 |
||
9889 |
^ colorArray |
|
9890 |
||
9891 |
"Created: 11.7.1996 / 20:20:35 / cg" |
|
9892 |
"Modified: 11.7.1996 / 20:49:21 / cg" |
|
9893 |
! |
|
9894 |
||
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9895 |
redBitsOf:pixel |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9896 |
"if the receiver is an rgb-image: |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9897 |
return the red component of a pixelValue. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9898 |
This has to be redefined by subclasses." |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9899 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9900 |
|redBits greenBits blueBits| |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9901 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9902 |
samplesPerPixel >= 3 ifTrue:[ |
| 1642 | 9903 |
"/ assume that the red bits are the leftMost bits |
9904 |
||
9905 |
redBits := bitsPerSample at:1. |
|
9906 |
redBits == 0 ifTrue:[^ 0]. |
|
9907 |
greenBits := bitsPerSample at:2. |
|
9908 |
blueBits := bitsPerSample at:3. |
|
9909 |
||
9910 |
^ (pixel bitShift:(greenBits + blueBits) negated) |
|
9911 |
bitAnd:(1 bitShift:redBits)-1 |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9912 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9913 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9914 |
self subclassResponsibility |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9915 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9916 |
"Created: 8.6.1996 / 09:44:51 / cg" |
|
809
f66955a8200e
more dithering (multi-plane & monochrome floyd-steinberg)
Claus Gittinger <cg@exept.de>
parents:
808
diff
changeset
|
9917 |
"Modified: 10.6.1996 / 14:59:05 / cg" |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9918 |
! |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9919 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9920 |
redComponentOf:pixel |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9921 |
"if the receiver is an rgb-image: |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9922 |
return the red component (0..100) of a pixelValue. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9923 |
This has to be redefined by subclasses." |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9924 |
|
| 854 | 9925 |
|redBits "{ Class: SmallInteger }"
|
9926 |
greenBits "{ Class: SmallInteger }"
|
|
9927 |
blueBits "{ Class: SmallInteger }"
|
|
9928 |
s "{ Class: SmallInteger }"|
|
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9929 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9930 |
samplesPerPixel >= 3 ifTrue:[ |
| 1642 | 9931 |
"/ assume that the red bits are the leftMost bits |
9932 |
||
9933 |
redBits := bitsPerSample at:1. |
|
9934 |
redBits == 0 ifTrue:[^ 0]. |
|
9935 |
||
9936 |
greenBits := bitsPerSample at:2. |
|
9937 |
blueBits := bitsPerSample at:3. |
|
9938 |
||
9939 |
s := (1 bitShift:redBits) - 1. |
|
9940 |
||
9941 |
^ 100.0 / s * |
|
9942 |
((pixel bitShift:(greenBits + blueBits) negated) |
|
9943 |
bitAnd:(1 bitShift:redBits)-1) |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9944 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9945 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9946 |
self subclassResponsibility |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9947 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9948 |
"Created: 8.6.1996 / 08:45:30 / cg" |
| 854 | 9949 |
"Modified: 14.6.1996 / 17:34:00 / cg" |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9950 |
! |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9951 |
|
| 283 | 9952 |
usedColors |
9953 |
"return a collection of colors used in the receiver." |
|
9954 |
||
9955 |
|usedValues max| |
|
9956 |
||
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9957 |
photometric == #rgb ifTrue:[ |
| 1642 | 9958 |
"/ too many to be returned here (think of the mass of |
9959 |
"/ data to be returned by a 24bit image ... ;-) |
|
9960 |
||
9961 |
self error:'query not allowed for this image'. |
|
9962 |
^ nil |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9963 |
]. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9964 |
|
| 283 | 9965 |
usedValues := self usedValues asArray. |
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9966 |
photometric == #palette ifTrue:[ |
| 1642 | 9967 |
^ usedValues collect:[:val | (colorMap at:val+1)] |
| 283 | 9968 |
]. |
9969 |
||
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9970 |
"/ (photometric == #blackIs0 or:[photometric == #whiteIs0]) |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9971 |
|
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9972 |
max := (1 bitShift:self depth) - 1. |
|
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9973 |
^ usedValues collect:[:val | (Color gray:(100 * val / max ))] |
| 283 | 9974 |
|
9975 |
" |
|
9976 |
(Image fromFile:'bitmaps/garfield.gif') usedColors |
|
9977 |
(Image fromFile:'bitmaps/SBrowser.xbm') usedColors |
|
9978 |
(Image fromFile:'ttt.tiff') usedColors |
|
9979 |
" |
|
| 746 | 9980 |
|
|
804
f1921926e324
better multiplane dither; support #rgb; specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
800
diff
changeset
|
9981 |
"Modified: 8.6.1996 / 09:04:56 / cg" |
| 283 | 9982 |
! |
9983 |
||
9984 |
usedValues |
|
9985 |
"return a collection of color values used in the receiver. |
|
9986 |
Notice, that the interpretation of the pixels depends on the photometric |
|
9987 |
of the image. |
|
9988 |
This is a general and therefore slow implementation; subclasses |
|
9989 |
may want to redefine this method for more performance." |
|
9990 |
||
9991 |
|set| |
|
9992 |
||
9993 |
set := IdentitySet new. |
|
9994 |
self valuesFromX:0 y:0 toX:(self width-1) y:(self height-1) do:[:x :y :pixel | |
|
9995 |
set add:pixel |
|
9996 |
]. |
|
9997 |
^ set |
|
9998 |
||
9999 |
" |
|
10000 |
(Image fromFile:'bitmaps/garfield.gif') usedValues |
|
10001 |
(Image fromFile:'bitmaps/SBrowser.xbm') usedValues |
|
10002 |
(Image fromFile:'ttt.tiff') usedValues |
|
10003 |
" |
|
| 674 | 10004 |
! |
10005 |
||
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10006 |
valueFromColor:color |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10007 |
"given a color, return the corresponding pixel value. |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10008 |
Non-representable colors return nil." |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10009 |
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10010 |
|pixel maxPixel redBits greenBits blueBits r g b| |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10011 |
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10012 |
photometric == #whiteIs0 ifTrue:[ |
| 1642 | 10013 |
maxPixel := (1 bitShift:self bitsPerPixel) - 1. |
10014 |
^ maxPixel - (color brightness * maxPixel) rounded. |
|
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10015 |
]. |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10016 |
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10017 |
photometric == #blackIs0 ifTrue:[ |
| 1642 | 10018 |
maxPixel := (1 bitShift:self bitsPerPixel) - 1. |
10019 |
^ (color brightness * maxPixel) rounded. |
|
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10020 |
]. |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10021 |
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10022 |
photometric == #palette ifTrue:[ |
| 1642 | 10023 |
pixel := colorMap indexOf:color. |
10024 |
pixel == 0 ifTrue:[ |
|
10025 |
" |
|
10026 |
the color to be stored is not in the images colormap |
|
10027 |
" |
|
10028 |
^ nil |
|
10029 |
]. |
|
10030 |
^ pixel - 1 |
|
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10031 |
]. |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10032 |
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10033 |
photometric == #rgb ifTrue:[ |
| 1642 | 10034 |
samplesPerPixel >= 3 ifTrue:[ |
10035 |
redBits := bitsPerSample at:1. |
|
10036 |
greenBits := bitsPerSample at:2. |
|
10037 |
blueBits := bitsPerSample at:3. |
|
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10038 |
|
| 1642 | 10039 |
"/ map r/g/b to 0..255 |
10040 |
r := (color red / 100.0 * ((1 bitShift:redBits)-1)) rounded. |
|
10041 |
g := (color green / 100.0 * ((1 bitShift:greenBits)-1)) rounded. |
|
10042 |
b := (color blue / 100.0 * ((1 bitShift:blueBits)-1)) rounded. |
|
10043 |
pixel := (((r bitShift:greenBits) + g) bitShift:blueBits) + b. |
|
10044 |
^ pixel |
|
10045 |
] |
|
|
861
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10046 |
]. |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10047 |
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10048 |
self error:'format not supported'. |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10049 |
^ nil |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10050 |
|
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10051 |
"Modified: 15.6.1996 / 09:38:09 / cg" |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10052 |
! |
|
5d897dbd681a
oops - leftover halt removed; added fill & valueFromColor.
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
10053 |
|
| 674 | 10054 |
widthOn:aGC |
10055 |
"return my width, if displayed on aGC; |
|
10056 |
since my width is independent of the device (the number of pixels), |
|
10057 |
return the pixel-width" |
|
10058 |
||
|
680
a905d02dcb82
added #bounds (for VisualComponent protocol compatibility)
Claus Gittinger <cg@exept.de>
parents:
674
diff
changeset
|
10059 |
^ width |
| 674 | 10060 |
|
10061 |
"Created: 12.5.1996 / 21:34:59 / cg" |
|
|
680
a905d02dcb82
added #bounds (for VisualComponent protocol compatibility)
Claus Gittinger <cg@exept.de>
parents:
674
diff
changeset
|
10062 |
"Modified: 13.5.1996 / 10:26:42 / cg" |
| 283 | 10063 |
! ! |
10064 |
||
10065 |
!Image methodsFor:'saving on file'! |
|
10066 |
||
10067 |
saveOn:aFileName |
|
10068 |
"save the image in a aFileName. The suffix of the filename |
|
10069 |
controls the format. Currently, not all formats may be supported |
|
| 1573 | 10070 |
(see ImageReader subclasses implementing save:onFile:). |
10071 |
May raise a signal, if the image cannot be written by the |
|
10072 |
reader." |
|
| 283 | 10073 |
|
| 1307 | 10074 |
|suffix readerClass| |
10075 |
||
10076 |
"/ |
|
10077 |
"/ from the extension, get the imageReader class |
|
10078 |
"/ (which should know how to write images as well) |
|
10079 |
"/ |
|
10080 |
suffix := aFileName asFilename suffix. |
|
10081 |
readerClass := FileFormats at:suffix ifAbsent:nil. |
|
10082 |
readerClass notNil ifTrue:[ |
|
| 1642 | 10083 |
^ self saveOn:aFileName using:readerClass |
| 1307 | 10084 |
]. |
10085 |
||
10086 |
"/ |
|
10087 |
"/ no known extension - could ask user for the format here. |
|
10088 |
"/ currently default to tiff format. |
|
10089 |
"/ |
|
|
1175
5595569cfbd3
newStyle info & error messages
Claus Gittinger <cg@exept.de>
parents:
1170
diff
changeset
|
10090 |
'Image [warning]: unknown extension - cannot figure out format - using tiff' errorPrintCR. |
| 1307 | 10091 |
|
| 283 | 10092 |
^ self saveOn:aFileName using:TIFFReader |
|
1175
5595569cfbd3
newStyle info & error messages
Claus Gittinger <cg@exept.de>
parents:
1170
diff
changeset
|
10093 |
|
|
1385
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
10094 |
" |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
10095 |
|image| |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
10096 |
|
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
10097 |
image := Image fromFile:'bitmaps/RCube.tiff'. |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
10098 |
image saveOn:'myImage.tiff'. |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
10099 |
image saveOn:'myImage.xbm'. |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
10100 |
image saveOn:'myImage.xpm'. |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
10101 |
image saveOn:'myImage.xwd'. |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
10102 |
" |
|
461b3901950e
more signals to be raised if anything happens during
Claus Gittinger <cg@exept.de>
parents:
1374
diff
changeset
|
10103 |
|
| 1573 | 10104 |
"Modified: 10.4.1997 / 17:38:35 / cg" |
| 89 | 10105 |
! |
10106 |
||
| 283 | 10107 |
saveOn:aFileName using:readerClass |
| 1573 | 10108 |
"save the receiver using the representation class. |
10109 |
May raise a signal, if the image cannot be written by the |
|
10110 |
reader." |
|
| 283 | 10111 |
|
| 1307 | 10112 |
^ readerClass save:self onFile:aFileName |
| 283 | 10113 |
|
10114 |
" |
|
| 1573 | 10115 |
|anImage| |
10116 |
||
10117 |
anImage := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
|
10118 |
anImage saveOn:'myImage.tiff' using:TIFFReader. |
|
| 1575 | 10119 |
" |
10120 |
||
10121 |
" |
|
10122 |
|anImage| |
|
10123 |
||
10124 |
anImage := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
|
| 1573 | 10125 |
anImage saveOn:'myImage.xbm' using:XBMReader. |
| 1575 | 10126 |
" |
10127 |
||
10128 |
" |
|
10129 |
|anImage| |
|
10130 |
||
10131 |
anImage := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
|
10132 |
Image cannotRepresentImageSignal handle:[:ex | |
|
| 1642 | 10133 |
self warn:'cannot save the image in this format' |
| 1575 | 10134 |
] do:[ |
| 1642 | 10135 |
anImage saveOn:'myImage.xbm' using:XBMReader. |
| 1575 | 10136 |
] |
10137 |
" |
|
10138 |
||
10139 |
" |
|
10140 |
|anImage| |
|
10141 |
||
10142 |
anImage := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
|
| 1573 | 10143 |
anImage saveOn:'myImage.xpm' using:XPMReader. |
| 1575 | 10144 |
" |
10145 |
||
10146 |
" |
|
10147 |
|anImage| |
|
10148 |
||
10149 |
anImage := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
|
| 1573 | 10150 |
anImage saveOn:'myImage.gif' using:GIFReader. |
10151 |
" |
|
10152 |
||
| 1575 | 10153 |
"Modified: 10.4.1997 / 17:49:26 / cg" |
| 0 | 10154 |
! ! |
| 283 | 10155 |
|
10156 |
!Image methodsFor:'screen capture'! |
|
10157 |
||
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10158 |
from:aDrawable in:aRectangle |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10159 |
"read an image from aDrawable. |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10160 |
This may be a device Form, a view or the rootView. |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10161 |
If its a view or rootView, it must be completely visible (or have |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10162 |
the backingStore option turned on). Otherwise, only the clipped contents |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10163 |
is returned. This is a common helper for form-to-image conversion, |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10164 |
and to read hardcopy images from the screen." |
| 283 | 10165 |
|
10166 |
|depth visType |
|
10167 |
x "{ Class: SmallInteger }"
|
|
10168 |
y "{ Class: SmallInteger }"
|
|
10169 |
w "{ Class: SmallInteger }"
|
|
10170 |
h "{ Class: SmallInteger }"
|
|
10171 |
dstIndex "{ Class: SmallInteger }"
|
|
10172 |
srcIndex "{ Class: SmallInteger }"
|
|
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10173 |
srcRow "{ Class: SmallInteger }"
|
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10174 |
dstRow "{ Class: SmallInteger }"
|
| 283 | 10175 |
inData tmpData usedPixels mapSize |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10176 |
map bitsPerPixel bytesPerLine |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10177 |
byteOrder bitOrder spaceBitsPerPixel |
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10178 |
info bitsPerPixelIn bytesPerLineIn |
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10179 |
maskR "{ Class: SmallInteger }"
|
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10180 |
maskG "{ Class: SmallInteger }"
|
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10181 |
maskB "{ Class: SmallInteger }"
|
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10182 |
shR "{ Class: SmallInteger }"
|
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10183 |
shG "{ Class: SmallInteger }"
|
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10184 |
shB "{ Class: SmallInteger }"
|
|
401
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
10185 |
shR2 "{ Class: SmallInteger }"
|
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
10186 |
shG2 "{ Class: SmallInteger }"
|
|
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
10187 |
shB2 "{ Class: SmallInteger }"
|
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10188 |
r "{ Class: SmallInteger }"
|
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10189 |
g "{ Class: SmallInteger }"
|
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10190 |
b "{ Class: SmallInteger }"
|
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10191 |
word device| |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10192 |
|
|
927
c4bc2a7ff733
use #graphicsDevice instead of #device.
Claus Gittinger <cg@exept.de>
parents:
924
diff
changeset
|
10193 |
device := aDrawable graphicsDevice. |
| 283 | 10194 |
|
| 936 | 10195 |
(aDrawable isForm and:[aDrawable depth == 1]) ifTrue:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10196 |
"/ a monochrome bitmap ? |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10197 |
visType := #StaticGray. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10198 |
depth := 1. |
| 936 | 10199 |
] ifFalse:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10200 |
" |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10201 |
get some attributes of the display device |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10202 |
" |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10203 |
visType := device visualType. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10204 |
depth := device depth. |
| 936 | 10205 |
]. |
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10206 |
|
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10207 |
"/ kludge for 15bit XFree server |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10208 |
depth == 15 ifTrue:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10209 |
depth := 16 |
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10210 |
]. |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10211 |
|
| 283 | 10212 |
(visType == #StaticGray) ifTrue:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10213 |
(device blackpixel == 0) ifTrue:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10214 |
photometric := #blackIs0 |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10215 |
] ifFalse:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10216 |
photometric := #whiteIs0 |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10217 |
]. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10218 |
samplesPerPixel := 1. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10219 |
bitsPerPixel := depth. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10220 |
bitsPerSample := Array with:bitsPerPixel. |
| 283 | 10221 |
] ifFalse:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10222 |
((visType == #PseudoColor) or:[(visType == #StaticColor) or:[visType == #GrayScale]]) ifTrue:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10223 |
photometric := #palette. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10224 |
samplesPerPixel := 1. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10225 |
bitsPerPixel := depth. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10226 |
bitsPerSample := Array with:bitsPerPixel. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10227 |
] ifFalse:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10228 |
((visType == #TrueColor) or:[visType == #DirectColor]) ifTrue:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10229 |
photometric := #rgb. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10230 |
samplesPerPixel := 3. |
|
401
f163a93a0987
grab image as 24bit rgb on 15/16bit trueColor servers
Claus Gittinger <cg@exept.de>
parents:
399
diff
changeset
|
10231 |
"/ bitsPerPixel := depth. |
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10232 |
"/ bitsPerSample := Array with:device bitsRed |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10233 |
"/ with:device bitsGreen |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10234 |
"/ with:device bitsBlue |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10235 |
bitsPerPixel := 24. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10236 |
bitsPerSample := #(8 8 8). |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10237 |
] ifFalse:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10238 |
self error:'screen visual not supported'. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10239 |
^ nil |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10240 |
] |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10241 |
] |
| 283 | 10242 |
]. |
10243 |
||
10244 |
" |
|
10245 |
dont know yet, how the display pads; assume worst case, |
|
10246 |
offering enough space for 32 bit padding |
|
10247 |
" |
|
10248 |
w := width := aRectangle width. |
|
10249 |
h := height := aRectangle height. |
|
10250 |
x := aRectangle left. |
|
10251 |
y := aRectangle top. |
|
10252 |
||
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10253 |
" |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10254 |
a kludge: we dont know in advance how much we are going to need |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10255 |
(its too late when info is present ...) |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10256 |
" |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10257 |
spaceBitsPerPixel := bitsPerPixel. |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10258 |
(bitsPerPixel > 8) ifTrue:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10259 |
spaceBitsPerPixel := 16. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10260 |
(bitsPerPixel > 16) ifTrue:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10261 |
spaceBitsPerPixel := 32. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10262 |
(bitsPerPixel > 32) ifTrue:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10263 |
spaceBitsPerPixel := bitsPerPixel. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10264 |
] |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10265 |
] |
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10266 |
]. |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10267 |
|
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10268 |
bytesPerLine := (w * spaceBitsPerPixel + 31) // 32 * 4. |
| 283 | 10269 |
inData := ByteArray uninitializedNew:(bytesPerLine * height). |
10270 |
||
10271 |
" |
|
10272 |
get the pixels |
|
10273 |
" |
|
|
1459
84e80b355553
splitted getBitsFrom into getBitsFromPixmap
Claus Gittinger <cg@exept.de>
parents:
1446
diff
changeset
|
10274 |
aDrawable isForm ifTrue:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10275 |
info := device getBitsFromPixmapId:aDrawable id x:x y:y width:w height:h into:inData. |
|
1459
84e80b355553
splitted getBitsFrom into getBitsFromPixmap
Claus Gittinger <cg@exept.de>
parents:
1446
diff
changeset
|
10276 |
] ifFalse:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10277 |
info := device getBitsFromViewId:aDrawable id x:x y:y width:w height:h into:inData. |
|
1459
84e80b355553
splitted getBitsFrom into getBitsFromPixmap
Claus Gittinger <cg@exept.de>
parents:
1446
diff
changeset
|
10278 |
]. |
| 283 | 10279 |
|
10280 |
" |
|
|
396
d088e672be8a
handle screen image grabbing with depth 16/24 and different byteOrder
Claus Gittinger <cg@exept.de>
parents:
394
diff
changeset
|
10281 |
check if byteorder is what I like (msbFirst) |
|
d088e672be8a
handle screen image grabbing with depth 16/24 and different byteOrder
Claus Gittinger <cg@exept.de>
parents:
394
diff
changeset
|
10282 |
" |
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10283 |
byteOrder := info at:#byteOrder. |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10284 |
bitsPerPixelIn := info at:#bitsPerPixel. |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10285 |
byteOrder ~~ #msbFirst ifTrue:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10286 |
bitsPerPixelIn == 16 ifTrue:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10287 |
"/ must swap bytes |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10288 |
inData swapBytes |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10289 |
] ifFalse:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10290 |
bitsPerPixelIn == 32 ifTrue:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10291 |
"/ must swap longs |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10292 |
inData swapLongs |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10293 |
] |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10294 |
] |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10295 |
]. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10296 |
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10297 |
" |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10298 |
check if bitorder is what I like (msbFirst) |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10299 |
" |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10300 |
bitOrder := info at:#bitOrder. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10301 |
bitOrder ~~ #msbFirst ifTrue:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10302 |
inData |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10303 |
expandPixels:8 |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10304 |
width:(inData size) |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10305 |
height:1 |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10306 |
into:inData |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10307 |
mapping:(ImageReader reverseBits). |
|
396
d088e672be8a
handle screen image grabbing with depth 16/24 and different byteOrder
Claus Gittinger <cg@exept.de>
parents:
394
diff
changeset
|
10308 |
]. |
|
d088e672be8a
handle screen image grabbing with depth 16/24 and different byteOrder
Claus Gittinger <cg@exept.de>
parents:
394
diff
changeset
|
10309 |
|
|
d088e672be8a
handle screen image grabbing with depth 16/24 and different byteOrder
Claus Gittinger <cg@exept.de>
parents:
394
diff
changeset
|
10310 |
" |
| 283 | 10311 |
check, if the devices padding is different .. |
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10312 |
or if the bitsPerPixels are different |
| 283 | 10313 |
" |
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10314 |
bytesPerLineIn := (info at:#bytesPerLine). "what I got" |
| 283 | 10315 |
bytesPerLine := (w * bitsPerPixel + 7) // 8. "what I want" |
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10316 |
|
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10317 |
((bytesPerLine ~~ bytesPerLineIn) |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10318 |
or:[bitsPerPixelIn ~~ bitsPerPixel]) ifTrue:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10319 |
tmpData := inData. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10320 |
inData := ByteArray uninitializedNew:(bytesPerLine * height). |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10321 |
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10322 |
srcRow := 1. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10323 |
dstRow := 1. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10324 |
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10325 |
bitsPerPixelIn ~~ bitsPerPixel ifTrue:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10326 |
"/ for now, only 32 -> 24 is supported |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10327 |
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10328 |
maskR := (1 bitShift:device bitsRed) - 1. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10329 |
maskG := (1 bitShift:device bitsGreen) - 1. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10330 |
maskB := (1 bitShift:device bitsBlue) - 1. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10331 |
shR := device shiftRed negated. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10332 |
shG := device shiftGreen negated. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10333 |
shB := device shiftBlue negated. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10334 |
shR2 := (8 - device bitsRed). |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10335 |
shG2 := (8 - device bitsGreen). |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10336 |
shB2 := (8 - device bitsBlue). |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10337 |
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10338 |
((bitsPerPixelIn == 32) and:[bitsPerPixel == 24]) ifTrue:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10339 |
"/ 'reformatting 32->24...' printNL. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10340 |
1 to:h do:[:hi | |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10341 |
srcIndex := srcRow. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10342 |
dstIndex := dstRow. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10343 |
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10344 |
1 to:w do:[:wi | |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10345 |
word := tmpData doubleWordAt:srcIndex MSB:true. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10346 |
r := (word bitShift:shR) bitAnd:maskR. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10347 |
g := (word bitShift:shG) bitAnd:maskG. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10348 |
b := (word bitShift:shB) bitAnd:maskB. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10349 |
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10350 |
inData at:dstIndex put:r. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10351 |
inData at:dstIndex+1 put:g. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10352 |
inData at:dstIndex+2 put:b. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10353 |
srcIndex := srcIndex + 4. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10354 |
dstIndex := dstIndex + 3. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10355 |
]. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10356 |
dstRow := dstRow + bytesPerLine. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10357 |
srcRow := srcRow + bytesPerLineIn |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10358 |
] |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10359 |
] ifFalse:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10360 |
((bitsPerPixelIn == 16) and:[bitsPerPixel == 24]) ifTrue:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10361 |
"/ 'reformatting 16->24...' printNL. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10362 |
1 to:h do:[:hi | |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10363 |
srcIndex := srcRow. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10364 |
dstIndex := dstRow. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10365 |
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10366 |
1 to:w do:[:wi | |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10367 |
word := tmpData wordAt:srcIndex MSB:true. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10368 |
r := (word bitShift:shR) bitAnd:maskR. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10369 |
g := (word bitShift:shG) bitAnd:maskG. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10370 |
b := (word bitShift:shB) bitAnd:maskB. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10371 |
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10372 |
inData at:dstIndex put:(r bitShift:shR2). |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10373 |
inData at:dstIndex+1 put:(g bitShift:shG2). |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10374 |
inData at:dstIndex+2 put:(b bitShift:shB2). |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10375 |
srcIndex := srcIndex + 2. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10376 |
dstIndex := dstIndex + 3. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10377 |
]. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10378 |
dstRow := dstRow + bytesPerLine. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10379 |
srcRow := srcRow + bytesPerLineIn |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10380 |
] |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10381 |
] ifFalse:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10382 |
('Image [warning]: unsupported depth combination: ' , bitsPerPixelIn printString , ' -> ' ,
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10383 |
bitsPerPixel printString) errorPrintCR. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10384 |
^ nil |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10385 |
] |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10386 |
]. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10387 |
] ifFalse:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10388 |
" |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10389 |
repad in the buffer |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10390 |
" |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10391 |
1 to:h do:[:hi | |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10392 |
inData replaceFrom:dstRow to:(dstRow + bytesPerLine - 1) |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10393 |
with:tmpData startingAt:srcRow. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10394 |
dstRow := dstRow + bytesPerLine. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10395 |
srcRow := srcRow + bytesPerLineIn |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10396 |
] |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10397 |
] |
| 283 | 10398 |
] ifFalse:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10399 |
(bytesPerLine * height) ~~ inData size ifTrue:[ |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10400 |
tmpData := inData. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10401 |
inData := ByteArray uninitializedNew:(bytesPerLine * height). |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10402 |
inData replaceFrom:1 to:bytesPerLine * height with:tmpData startingAt:1 |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10403 |
] |
| 283 | 10404 |
]. |
10405 |
bytes := inData. |
|
10406 |
||
10407 |
"info printNL." |
|
10408 |
||
|
399
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10409 |
((visType == #StaticGray) |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10410 |
or:[visType == #TrueColor |
|
0b6e43843204
handle 24 truecolor displays in fromScreen
Claus Gittinger <cg@exept.de>
parents:
396
diff
changeset
|
10411 |
or:[visType == #DirectColor]]) ifTrue:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10412 |
" |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10413 |
were done, the pixel values are the rgb/grey values |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10414 |
" |
| 283 | 10415 |
] ifFalse:[ |
|
1644
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10416 |
" |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10417 |
what we have now are the color numbers - still need the r/g/b values. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10418 |
find out, which colors are in the picture |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10419 |
" |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10420 |
usedPixels := inData usedValues. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10421 |
mapSize := usedPixels max + 1. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10422 |
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10423 |
"get the palette" |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10424 |
map := Array new:mapSize. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10425 |
usedPixels do:[:colorIndex | |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10426 |
|i| |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10427 |
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10428 |
i := colorIndex + 1. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10429 |
device getRGBFrom:colorIndex into:[:r :g :b | |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10430 |
map at:i put:(Color red:r green:g blue:b) |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10431 |
] |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10432 |
]. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10433 |
colorMap := map. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10434 |
]. |
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10435 |
|
|
e06e1c7869fc
care for bitOrder, when reading out device bits.
Claus Gittinger <cg@exept.de>
parents:
1642
diff
changeset
|
10436 |
"Modified: 23.4.1997 / 14:16:19 / cg" |
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10437 |
! |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10438 |
|
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10439 |
fromScreen:aRectangle |
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
10440 |
"read an image from the display screen. |
|
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
10441 |
WARNING: this temporarily grabs the display |
| 1642 | 10442 |
it may not work from within a buttonMotion |
10443 |
(use #fromScreen:on:grab: with a false grabArg then)." |
|
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10444 |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10445 |
^ self |
| 1642 | 10446 |
fromScreen:aRectangle |
10447 |
on:Screen current |
|
10448 |
grab:true |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10449 |
|
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
10450 |
"Modified: 26.3.1997 / 10:43:34 / cg" |
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10451 |
! |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10452 |
|
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10453 |
fromScreen:aRectangle on:aDevice |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10454 |
"read an image from aDevices display screen. |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10455 |
Since I have no other displays, only the MonoChrome, StaticGrey |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10456 |
and PseudoColor cases have been tested ... |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10457 |
(especially True- and DirectColor may be wrong). |
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
10458 |
Late note: 24bit rgb now also works. |
|
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
10459 |
WARNING: this temporarily grabs the display |
| 1642 | 10460 |
it may not work from within a buttonMotion |
10461 |
(use #fromScreen:on:grab: with a false grabArg then)." |
|
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10462 |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10463 |
^ self |
| 1642 | 10464 |
fromScreen:aRectangle |
10465 |
on:aDevice |
|
10466 |
grab:true |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10467 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10468 |
" |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10469 |
(Image new) fromScreen:((0 @ 0) corner:(100 @ 100)) on:Display |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10470 |
(Image new) fromScreen:((0 @ 0) corner:(500 @ 500)) on:Display |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10471 |
" |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10472 |
|
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
10473 |
"Modified: 26.3.1997 / 10:43:48 / cg" |
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10474 |
! |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10475 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10476 |
fromScreen:aRectangle on:aDevice grab:doGrab |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10477 |
"read an image from aDevices display screen. |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10478 |
If the doGrab argument is true, the display |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10479 |
is grabbed (i.e. blocked for others) and a camera cursor is |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10480 |
shown while the readout is done. |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10481 |
Since I have no other displays, only the MonoChrome, StaticGrey |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10482 |
and PseudoColor cases have been tested ... |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10483 |
(especially True- and DirectColor may be wrong). |
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
10484 |
Late note: 24bit rgb now also works. |
|
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
10485 |
WARNING: with doGrab true, this temporarily grabs the display |
| 1642 | 10486 |
and it may not work from within a buttonMotion |
10487 |
(use with a false grabArg then)." |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10488 |
|
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10489 |
|curs cid rootView| |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10490 |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10491 |
doGrab ifTrue:[ |
| 1642 | 10492 |
curs := Cursor sourceForm:(Image fromFile:'bitmaps/Camera.xbm') |
10493 |
maskForm:(Image fromFile:'bitmaps/Camera_m.xbm') |
|
10494 |
hotSpot:16@16. |
|
10495 |
curs notNil ifTrue:[ |
|
10496 |
cid := (curs on:aDevice) id |
|
10497 |
]. |
|
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10498 |
]. |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10499 |
|
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10500 |
" |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10501 |
actually have to grabServer ... but thats not yet available |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10502 |
" |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10503 |
rootView := aDevice rootView. |
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10504 |
doGrab ifTrue:[ |
| 1642 | 10505 |
aDevice setActivePointerGrab:rootView. |
10506 |
aDevice grabPointerIn:rootView id |
|
10507 |
withCursor:cid |
|
10508 |
pointerMode:#async |
|
10509 |
keyboardMode:#sync |
|
10510 |
confineTo:nil. |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10511 |
]. |
|
924
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10512 |
|
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10513 |
" |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10514 |
get the pixels |
|
d6d5d427b176
fixed conversion from deep device forms
Claus Gittinger <cg@exept.de>
parents:
916
diff
changeset
|
10515 |
" |
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10516 |
[ |
| 1642 | 10517 |
self from:rootView in:aRectangle. |
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10518 |
] valueNowOrOnUnwindDo:[ |
| 1642 | 10519 |
doGrab ifTrue:[ |
10520 |
aDevice ungrabPointer. |
|
10521 |
] |
|
|
1487
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10522 |
] |
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10523 |
|
|
1d8efd4d85c3
allow screen capture without a grab
Claus Gittinger <cg@exept.de>
parents:
1469
diff
changeset
|
10524 |
"Created: 26.3.1997 / 10:36:30 / cg" |
|
1488
436e5944129b
comments warning about grab & buttonMotion
Claus Gittinger <cg@exept.de>
parents:
1487
diff
changeset
|
10525 |
"Modified: 26.3.1997 / 10:44:45 / cg" |
| 936 | 10526 |
! |
10527 |
||
10528 |
photometricFromScreen:aDevice |
|
10529 |
"read aDevices display photometric and set my colormap for it. |
|
10530 |
This must be used after an images bits have been read from the screen |
|
10531 |
or from an offScreen bitmap, for correct pixel interpretation." |
|
10532 |
||
10533 |
|depth visType bitsPerPixel| |
|
10534 |
||
10535 |
" |
|
10536 |
get some attributes of the display device |
|
10537 |
" |
|
10538 |
visType := aDevice visualType. |
|
10539 |
depth := aDevice depth. |
|
10540 |
||
10541 |
"/ kludge for 15bit XFree server |
|
10542 |
depth == 15 ifTrue:[ |
|
| 1642 | 10543 |
depth := 16 |
| 936 | 10544 |
]. |
10545 |
||
10546 |
(visType == #StaticGray) ifTrue:[ |
|
| 1642 | 10547 |
(aDevice blackpixel == 0) ifTrue:[ |
10548 |
photometric := #blackIs0 |
|
10549 |
] ifFalse:[ |
|
10550 |
photometric := #whiteIs0 |
|
10551 |
]. |
|
10552 |
samplesPerPixel := 1. |
|
10553 |
bitsPerPixel := depth. |
|
10554 |
bitsPerSample := Array with:bitsPerPixel. |
|
10555 |
" |
|
10556 |
were done, the pixel values are the grey values |
|
10557 |
" |
|
10558 |
^ self |
|
| 936 | 10559 |
]. |
10560 |
||
10561 |
((visType == #TrueColor) or:[visType == #DirectColor]) ifTrue:[ |
|
| 1642 | 10562 |
photometric := #rgb. |
10563 |
samplesPerPixel := 3. |
|
10564 |
||
10565 |
"/ for now - only support 24bit TrueColor |
|
10566 |
depth ~~ 24 ifTrue:[ |
|
10567 |
'IMAGE: unsupported display depth' errorPrintCR. |
|
10568 |
]. |
|
| 936 | 10569 |
"/ bitsPerPixel := depth. |
10570 |
"/ bitsPerSample := Array with:aDevice bitsRed |
|
10571 |
"/ with:aDevice bitsGreen |
|
10572 |
"/ with:aDevice bitsBlue |
|
| 1642 | 10573 |
bitsPerPixel := 24. |
10574 |
bitsPerSample := #(8 8 8). |
|
10575 |
" |
|
10576 |
were done, the pixel values are the rgb values |
|
10577 |
" |
|
10578 |
^ self |
|
| 936 | 10579 |
]. |
10580 |
||
10581 |
((visType ~~ #PseudoColor) |
|
10582 |
and:[(visType ~~ #StaticColor) |
|
10583 |
and:[visType ~~ #GrayScale]]) ifTrue:[ |
|
| 1642 | 10584 |
self error:'screen visual not supported'. |
10585 |
^ nil |
|
| 936 | 10586 |
]. |
10587 |
||
10588 |
photometric := #palette. |
|
10589 |
samplesPerPixel := 1. |
|
10590 |
bitsPerPixel := depth. |
|
10591 |
bitsPerSample := Array with:bitsPerPixel. |
|
10592 |
||
10593 |
" |
|
10594 |
still need the pixels r/g/b values ... |
|
10595 |
" |
|
10596 |
colorMap := aDevice colorMap |
|
10597 |
||
10598 |
"Modified: 11.7.1996 / 11:11:34 / cg" |
|
| 283 | 10599 |
! ! |
10600 |
||
|
1086
269243c32f69
added displayOpaque, for protocol completeness
Claus Gittinger <cg@exept.de>
parents:
1070
diff
changeset
|
10601 |
!Image class methodsFor:'documentation'! |
| 283 | 10602 |
|
10603 |
version |
|
|
1660
67a3a6eab23a
pixel accessing methods cleaned up
Claus Gittinger <cg@exept.de>
parents:
1653
diff
changeset
|
10604 |
^ '$Header: /cvs/stx/stx/libview/Image.st,v 1.186 1997-04-24 16:05:36 cg Exp $' |
| 650 | 10605 |
! ! |
| 283 | 10606 |
Image initialize! |