author | Claus Gittinger <cg@exept.de> |
Fri, 11 Apr 2003 01:40:32 +0200 | |
changeset 3849 | b5e6139995a2 |
parent 3842 | e97ae6061e75 |
child 3851 | 34637f468b2a |
permissions | -rw-r--r-- |
3 | 1 |
" |
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COPYRIGHT (c) 1993 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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"{ Package: 'stx:libview' }" |
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Image subclass:#Depth24Image |
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instanceVariableNames:'' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Graphics-Images' |
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! |
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!Depth24Image class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1993 by Claus Gittinger |
|
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All Rights Reserved |
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|
46 | 29 |
This software is furnished under a license and may be used |
30 |
only in accordance with the terms of that license and with the |
|
31 |
inclusion of the above copyright notice. This software may not |
|
32 |
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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documentation |
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" |
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this class represents true-color (24 bit / pixel) images. |
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It mainly consists of methods already implemented in Image, |
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reimplemented here for more performance. |
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Only the #rgb format is supported here. |
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[author:] |
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Claus Gittinger |
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[see also:] |
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Depth1Image Depth2Image Depth4Image Depth8Image Depth16Image |
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ImageReader |
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" |
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! ! |
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1167 | 55 |
!Depth24Image class methodsFor:'queries'! |
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defaultPhotometric |
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"return the default photometric pixel interpretation" |
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|
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^ #rgb |
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|
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"Created: 10.6.1996 / 18:08:25 / cg" |
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! |
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imageDepth |
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"return the depth of images represented by instances of |
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this class - here we return 24" |
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^ 24 |
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"Modified: 20.4.1996 / 23:39:50 / cg" |
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! ! |
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!Depth24Image methodsFor:'accessing-pixels'! |
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colorAtX:x y:y |
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"retrieve a pixel at x/y; return a color. |
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Pixels start at x=0 , y=0 for upper left pixel, end at |
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x = width-1, y=height-1 for lower right pixel" |
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||
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|index "{ Class: SmallInteger }" |
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rVal gVal bVal| |
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index := 1 + (((width * y) + x) * 3). |
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rVal := bytes at:(index). |
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gVal := bytes at:(index + 1). |
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bVal := bytes at:(index + 2). |
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photometric ~~ #rgb ifTrue:[ |
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^ super colorAtX:x y:y |
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]. |
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^ Color redByte:rVal greenByte:gVal blueByte:bVal |
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"Created: 24.4.1997 / 17:32:47 / cg" |
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"Modified: 24.4.1997 / 21:32:37 / cg" |
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! |
97 |
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colorAtX:x y:y put:aColor |
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"set the pixel at x/y to aColor. |
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Pixels start at x=0 , y=0 for upper left pixel, end at |
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x = width-1, y=height-1 for lower right pixel." |
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|index "{ Class: SmallInteger }"| |
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index := 1 + (((width * y) + x) * 3). |
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bytes at:(index) put:(aColor redByte). |
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bytes at:(index + 1) put:(aColor greenByte). |
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bytes at:(index + 2) put:(aColor blueByte). |
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"Created: 24.4.1997 / 17:32:59 / cg" |
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! |
112 |
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pixelAtX:x y:y |
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"retrieve a pixel at x/y; return a color. |
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Pixels start at x=0 , y=0 for upper left pixel, end at |
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x = width-1, y=height-1 for lower right pixel" |
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|
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|index "{ Class: SmallInteger }" |
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rVal "{ Class: SmallInteger }" |
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gVal "{ Class: SmallInteger }" |
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bVal "{ Class: SmallInteger }"| |
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|
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index := 1 + (((width * y) + x) * 3). |
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rVal := bytes at:(index). |
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gVal := bytes at:(index + 1). |
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bVal := bytes at:(index + 2). |
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^ (((rVal bitShift:8) bitOr:gVal) bitShift:8) bitOr:bVal |
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"Created: 24.4.1997 / 16:06:34 / cg" |
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! |
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|
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pixelAtX:x y:y put:aPixelValue |
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"set a pixel at x/y to aPixelValue, which is 24 bits RGB. |
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Pixels start at x=0 , y=0 for upper left pixel, end at |
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x = width-1, y=height-1 for lower right pixel" |
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||
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|index "{ Class: SmallInteger }" |
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val "{ Class: SmallInteger }" | |
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index := 1 + (((width * y) + x) * 3). |
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val := aPixelValue. |
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bytes at:(index + 2) put:(val bitAnd:16rFF). |
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val := val bitShift:-8. |
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bytes at:(index + 1) put:(val bitAnd:16rFF). |
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val := val bitShift:-8. |
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bytes at:(index) put:val. |
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"Created: 24.4.1997 / 17:06:33 / cg" |
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! |
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rowAt:rowIndex putAll:pixelArray |
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"replace a single rows bits from bits in the pixelArray argument; |
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Notice: row indexing starts at 0." |
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|
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|dstIdx pixel| |
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156 |
|
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dstIdx := (rowIndex * self bytesPerRow) + 1. |
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1 to:width do:[:col | |
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pixel := pixelArray at:col. |
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parents:
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160 |
bytes at:dstIdx put:((pixel bitShift:-16) bitAnd:16rFF). |
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parents:
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bytes at:dstIdx+1 put:((pixel bitShift:-8) bitAnd:16rFF). |
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parents:
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162 |
bytes at:dstIdx+2 put:(pixel bitAnd:16rFF). |
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parents:
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163 |
dstIdx := dstIdx + 3. |
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164 |
]. |
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165 |
^ pixelArray |
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166 |
|
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"Created: 24.4.1997 / 15:43:08 / cg" |
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168 |
! |
1 | 169 |
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rowAt:rowIndex putAll:pixelArray startingAt:startIndex |
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"store a single rows bits from bits in the pixelArray argument; |
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172 |
Return the pixelArray. |
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Notice: row indexing starts at 0." |
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|
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175 |
|dstIdx pixel| |
1 | 176 |
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177 |
dstIdx := (rowIndex * self bytesPerRow) + 1. |
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1 to:width do:[:col | |
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179 |
pixel := pixelArray at:(startIndex + col). |
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parents:
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|
180 |
bytes at:dstIdx put:((pixel bitShift:-16) bitAnd:16rFF). |
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parents:
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|
181 |
bytes at:dstIdx+1 put:((pixel bitShift:-8) bitAnd:16rFF). |
60f9cf7dd066
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parents:
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changeset
|
182 |
bytes at:dstIdx+2 put:(pixel bitAnd:16rFF). |
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parents:
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|
183 |
dstIdx := dstIdx + 3. |
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184 |
]. |
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185 |
^ pixelArray |
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186 |
|
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187 |
"Created: 24.4.1997 / 15:50:27 / cg" |
1 | 188 |
! ! |
189 |
||
190 |
!Depth24Image methodsFor:'converting rgb images'! |
|
191 |
||
813
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|
192 |
asGrayFormOn:aDevice |
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|
193 |
"return a grey form from the receiver. |
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|
194 |
Redefined to use special code when converting to 8-bit |
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|
195 |
greyScale displays." |
1 | 196 |
|
813
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197 |
(aDevice visualType == #StaticGray) ifTrue:[ |
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198 |
aDevice depth == 8 ifTrue:[ |
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parents:
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199 |
^ self makeDeviceGrayPixmapOn:aDevice depth:aDevice depth fromArray:(self threshold8BitGrayBits) |
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|
200 |
]. |
1 | 201 |
]. |
813
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|
202 |
^ super asGrayFormOn:aDevice |
1 | 203 |
|
813
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204 |
"Created: 10.6.1996 / 19:00:45 / cg" |
816 | 205 |
"Modified: 10.6.1996 / 20:10:19 / cg" |
1 | 206 |
! |
207 |
||
813
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|
208 |
asThresholdGrayImageDepth:depth |
808 | 209 |
"return an 8-bit grey image from the rgb picture. |
210 |
Pixel values are reduced to a 0..255 grey level." |
|
1 | 211 |
|
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|
212 |
depth == 8 ifTrue:[ |
2301
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parents:
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|
213 |
photometric == #rgb ifTrue:[ |
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|
214 |
^ Depth8Image |
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|
215 |
width:width |
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|
216 |
height:height |
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|
217 |
fromArray:(self threshold8BitGrayBits) |
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|
218 |
] |
813
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|
219 |
]. |
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|
220 |
^ super asThresholdGrayImageDepth:depth |
808 | 221 |
|
222 |
" |
|
223 |
|i| |
|
224 |
||
225 |
i := Image fromFile:'bitmaps/granite.tiff'. |
|
813
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|
226 |
(i asThresholdGrayImageDepth:8) inspect. |
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|
227 |
(i asThresholdGrayImageDepth:4) inspect. |
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|
228 |
(i asThresholdGrayImageDepth:2) inspect. |
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|
229 |
(i asThresholdGrayImageDepth:1) inspect. |
808 | 230 |
" |
1 | 231 |
|
808 | 232 |
" |
233 |
|i| |
|
234 |
||
235 |
i := Image fromFile:'bitmaps/granite.tiff'. |
|
813
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|
236 |
((i asThresholdGrayImageDepth:8) asOrderedDitheredGrayImageDepth:2) inspect |
808 | 237 |
" |
238 |
||
239 |
" |
|
240 |
|i| |
|
1 | 241 |
|
808 | 242 |
i := Image fromFile:'bitmaps/granite.tiff'. |
813
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parents:
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diff
changeset
|
243 |
((i asThresholdGrayImageDepth:8) asOrderedDitheredGrayImageDepth:4) inspect |
808 | 244 |
" |
245 |
||
246 |
" |
|
247 |
|i| |
|
248 |
||
249 |
i := Image fromFile:'bitmaps/granite.tiff'. |
|
813
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parents:
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diff
changeset
|
250 |
(i asThresholdGrayImageDepth:8) asOrderedDitheredMonochromeImage inspect |
808 | 251 |
" |
252 |
||
253 |
"Created: 8.6.1996 / 13:58:46 / cg" |
|
813
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diff
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|
254 |
"Modified: 10.6.1996 / 19:11:18 / cg" |
1 | 255 |
! |
256 |
||
282 | 257 |
rgbImageAsDitheredPseudoFormOn:aDevice |
258 |
"return a dithered pseudocolor form from the rgb-picture. |
|
259 |
This method depends on fixColors being allocated (see Color>>getColors*)" |
|
260 |
||
1607 | 261 |
|ditherColors| |
262 |
||
263 |
(ditherColors := aDevice fixColors) notNil ifTrue:[ |
|
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|
264 |
^ self |
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parents:
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|
265 |
rgbImageAsDitheredPseudoFormOn:aDevice |
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|
266 |
colors:ditherColors |
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comments; fixed #red/green/blueComponentOfPixel.
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|
267 |
nRed:aDevice numFixRed |
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|
268 |
nGreen:aDevice numFixGreen |
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|
269 |
nBlue:aDevice numFixBlue |
1607 | 270 |
]. |
271 |
||
272 |
ditherColors := Set new. |
|
273 |
ditherColors addAll:(aDevice ditherColors). |
|
1629
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|
274 |
ditherColors addAll:(aDevice deviceColors). |
1607 | 275 |
ditherColors := ditherColors asArray. |
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|
276 |
^ self |
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|
277 |
rgbImageAsDitheredPseudoFormOn:aDevice |
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|
278 |
colors:ditherColors. |
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|
279 |
|
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|
280 |
"Modified: 22.4.1997 / 11:59:44 / cg" |
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|
281 |
! |
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|
282 |
|
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|
283 |
rgbImageAsDitheredPseudoFormOn:aDevice colors:fixColors |
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|
284 |
"return a dithered 8-bit pseudocolor form from the rgb-picture, using |
019f40ecbe64
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changeset
|
285 |
arbitrary fix colors in fixColors." |
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|
286 |
|
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changeset
|
287 |
|pseudoBits f |
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|
288 |
h "{ Class: SmallInteger }" |
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|
289 |
w "{ Class: SmallInteger }" |
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|
290 |
numFix "{Class: SmallInteger }" |
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|
291 |
srcIndex "{ Class: SmallInteger }" |
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changeset
|
292 |
dstIndex "{ Class: SmallInteger }" |
2529
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use new supportedImageFormat query from Device
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|
293 |
deviceDepth |
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|
294 |
fixIds fixRed fixGreen fixBlue failed cache idsUsed usedColors |
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|
295 |
fixColorArray| |
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changeset
|
296 |
|
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changeset
|
297 |
numFix := fixColors size. |
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changeset
|
298 |
numFix == 256 ifTrue:[ |
2773
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|
299 |
"/ algorithm below only handles 255 colors. |
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|
300 |
numFix := 255. |
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changeset
|
301 |
]. |
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changeset
|
302 |
|
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changeset
|
303 |
fixColorArray := fixColors asArray. |
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parents:
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changeset
|
304 |
fixIds := (fixColorArray collect:[:clr | clr colorId]) asByteArray. |
1607 | 305 |
|
2773
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parents:
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diff
changeset
|
306 |
fixRed := (fixColorArray collect:[:clr | clr redByte]) asByteArray. |
8aefa2576a50
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parents:
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changeset
|
307 |
fixGreen := (fixColorArray collect:[:clr | clr greenByte]) asByteArray. |
8aefa2576a50
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parents:
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diff
changeset
|
308 |
fixBlue := (fixColorArray collect:[:clr | clr blueByte]) asByteArray. |
8aefa2576a50
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parents:
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changeset
|
309 |
|
1597
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parents:
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diff
changeset
|
310 |
cache := ByteArray new:(1 bitShift:14). |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
311 |
cache atAllPut:16rFF. |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
312 |
|
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
313 |
deviceDepth := aDevice depth. |
2529
637a5979a3d0
use new supportedImageFormat query from Device
Claus Gittinger <cg@exept.de>
parents:
2401
diff
changeset
|
314 |
deviceDepth == 8 ifFalse:[ |
2773
8aefa2576a50
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parents:
2535
diff
changeset
|
315 |
(aDevice supportedImageFormatForDepth:8) isNil ifTrue:[ |
8aefa2576a50
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parents:
2535
diff
changeset
|
316 |
^ nil |
8aefa2576a50
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parents:
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diff
changeset
|
317 |
] |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
318 |
]. |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
319 |
|
1607 | 320 |
idsUsed := ByteArray new:(fixIds size). |
321 |
||
1597
019f40ecbe64
added dither code for no-colorCube case.
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parents:
1577
diff
changeset
|
322 |
'Depth24Image [info]: dithering ...' infoPrintCR. |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
323 |
|
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
324 |
pseudoBits := ByteArray uninitializedNew:(width * height). |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
325 |
|
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
326 |
h := height. |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
327 |
w := width. |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
328 |
|
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
329 |
%{ |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
330 |
int __x, __y, __numFix; |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
331 |
int __eR, __eG, __eB; |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
332 |
unsigned char *srcP, *dstP; |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
333 |
int pix; |
1607 | 334 |
unsigned char *idP, *usedIdP, *redP, *greenP, *blueP, *cacheP; |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
335 |
int __w = __intVal(w); |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
336 |
|
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
337 |
if (__isByteArray(__INST(bytes)) |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
338 |
&& __isSmallInteger(numFix) |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
339 |
&& __isByteArray(pseudoBits) |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
340 |
&& __isByteArray(cache) |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
341 |
&& __isByteArray(fixIds) |
1607 | 342 |
&& __isByteArray(idsUsed) |
1597
019f40ecbe64
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parents:
1577
diff
changeset
|
343 |
&& __isByteArray(fixRed) |
019f40ecbe64
added dither code for no-colorCube case.
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parents:
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diff
changeset
|
344 |
&& __isByteArray(fixGreen) |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
345 |
&& __isByteArray(fixBlue) ) { |
2773
8aefa2576a50
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parents:
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diff
changeset
|
346 |
failed = false; |
1597
019f40ecbe64
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Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
347 |
|
2773
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parents:
2535
diff
changeset
|
348 |
srcP = __ByteArrayInstPtr(__INST(bytes))->ba_element; |
8aefa2576a50
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parents:
2535
diff
changeset
|
349 |
dstP = __ByteArrayInstPtr(pseudoBits)->ba_element; |
8aefa2576a50
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parents:
2535
diff
changeset
|
350 |
idP = __ByteArrayInstPtr(fixIds)->ba_element; |
8aefa2576a50
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parents:
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diff
changeset
|
351 |
usedIdP = __ByteArrayInstPtr(idsUsed)->ba_element; |
8aefa2576a50
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parents:
2535
diff
changeset
|
352 |
redP = __ByteArrayInstPtr(fixRed)->ba_element; |
8aefa2576a50
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parents:
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diff
changeset
|
353 |
greenP = __ByteArrayInstPtr(fixGreen)->ba_element; |
8aefa2576a50
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parents:
2535
diff
changeset
|
354 |
blueP = __ByteArrayInstPtr(fixBlue)->ba_element; |
8aefa2576a50
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parents:
2535
diff
changeset
|
355 |
cacheP = __ByteArrayInstPtr(cache)->ba_element; |
8aefa2576a50
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parents:
2535
diff
changeset
|
356 |
__numFix = __intVal(numFix); |
1597
019f40ecbe64
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parents:
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diff
changeset
|
357 |
|
2773
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parents:
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diff
changeset
|
358 |
for (__y=__intVal(h); __y>0; __y--) { |
8aefa2576a50
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parents:
2535
diff
changeset
|
359 |
__eR = __eG = __eB = 0; |
8aefa2576a50
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parents:
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diff
changeset
|
360 |
for (__x=__w; __x>0; __x--) { |
8aefa2576a50
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parents:
2535
diff
changeset
|
361 |
int cacheIdx, clrIdx; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
362 |
int __wantR, __wantG, __wantB; |
938
1926ecac24b5
fixColor and ditherColor stuff moved from Color
Claus Gittinger <cg@exept.de>
parents:
886
diff
changeset
|
363 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
364 |
__wantR = srcP[0] + __eR; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
365 |
if (__wantR > 255) __wantR = 255; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
366 |
else if (__wantR < 0) __wantR = 0; |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
367 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
368 |
__wantG = srcP[1] + __eG; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
369 |
if (__wantG > 255) __wantG = 255; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
370 |
else if (__wantG < 0) __wantG = 0; |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
371 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
372 |
__wantB = srcP[2] + __eB; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
373 |
if (__wantB > 255) __wantB = 255; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
374 |
else if (__wantB < 0) __wantB = 0; |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
375 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
376 |
/* |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
377 |
* compute cache index |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
378 |
*/ |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
379 |
cacheIdx = ((__wantR & 0xF8) >> 3); |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
380 |
cacheIdx = (cacheIdx << 5) | ((__wantG & 0xF8) >> 3); |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
381 |
cacheIdx = (cacheIdx << 4) | ((__wantB & 0xF0) >> 4); |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
382 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
383 |
clrIdx = cacheP[cacheIdx]; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
384 |
if (clrIdx == 0xFF) { /* invalid slot */ |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
385 |
unsigned minErr, minIdx; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
386 |
int i; |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
387 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
388 |
/* |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
389 |
* must search ... |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
390 |
*/ |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
391 |
minErr = 0x7FFFFFF; minIdx = 0; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
392 |
for (i=0; i<__numFix; i++) { |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
393 |
unsigned cR, cG, cB, e; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
394 |
int eR, eG, eB; |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
395 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
396 |
cR = redP[i]; cG = greenP[i]; cB = blueP[i]; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
397 |
eR = cR - __wantR; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
398 |
if (eR < 0) eR = -eR; |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
399 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
400 |
eG = cG - __wantG; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
401 |
if (eG < 0) eG = -eG; |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
402 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
403 |
eB = cB - __wantB; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
404 |
if (eB < 0) eB = -eB; |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
405 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
406 |
e = eR + eG + eB; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
407 |
if (e < minErr) { |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
408 |
minErr = e; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
409 |
minIdx = i; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
410 |
if (e < 7) { |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
411 |
break; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
412 |
} |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
413 |
} |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
414 |
} |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
415 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
416 |
/* |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
417 |
* minIdx is now index into fixColors |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
418 |
*/ |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
419 |
cacheP[cacheIdx] = clrIdx = minIdx; |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
420 |
/* |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
421 |
printf("want %d/%d/%d best: %d [%d/%d/%d]\n", __wantR, __wantG, __wantB, clrIdx, redP[clrIdx], greenP[clrIdx], blueP[clrIdx]); |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
422 |
*/ |
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
423 |
} |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
424 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
425 |
/* |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
426 |
* store the corresponding dither colorId |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
427 |
*/ |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
428 |
*dstP++ = idP[clrIdx]; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
429 |
usedIdP[clrIdx] = 1; |
1607 | 430 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
431 |
srcP += 3; |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
432 |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
433 |
/* |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
434 |
* the new error: |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
435 |
*/ |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
436 |
__eR = __wantR - redP[clrIdx]; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
437 |
__eG = __wantG - greenP[clrIdx]; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
438 |
__eB = __wantB - blueP[clrIdx]; |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
439 |
} |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
440 |
} |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
441 |
} |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
442 |
%}. |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
443 |
failed ifTrue:[ |
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
444 |
self primitiveFailed. |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
445 |
^ nil |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
446 |
]. |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
447 |
|
1607 | 448 |
"/ not all colors may be really in use ... |
449 |
usedColors := fixColors copy. |
|
450 |
idsUsed keysAndValuesDo:[:idx :flag | |
|
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
451 |
flag == 0 ifTrue:[ |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
452 |
usedColors at:idx put:nil |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
453 |
] |
1607 | 454 |
]. |
455 |
||
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
456 |
f := Form width:width height:height depth:aDevice depth on:aDevice. |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
457 |
f isNil ifTrue:[^ nil]. |
1607 | 458 |
f colorMap:usedColors. |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
459 |
f initGC. |
1999
9ccc51eea588
always pass the padding down to device
Claus Gittinger <cg@exept.de>
parents:
1932
diff
changeset
|
460 |
aDevice |
2773
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
461 |
drawBits:pseudoBits |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
462 |
bitsPerPixel:8 |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
463 |
depth:aDevice depth |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
464 |
padding:8 |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
465 |
width:width height:height |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
466 |
x:0 y:0 |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
467 |
into:(f id) |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
468 |
x:0 y:0 |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
469 |
width:width height:height |
8aefa2576a50
a few more smallInteger type hints
Claus Gittinger <cg@exept.de>
parents:
2535
diff
changeset
|
470 |
with:(f gcId). |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
471 |
^ f |
282 | 472 |
! |
473 |
||
474 |
rgbImageAsDitheredPseudoFormOn:aDevice colors:fixColors nRed:nRed nGreen:nGreen nBlue:nBlue |
|
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
475 |
"return a dithered pseudocolor form from the rgb-picture, |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
476 |
using colors from a colorCube for dithering." |
282 | 477 |
|
478 |
|pseudoBits f |
|
479 |
h "{ Class: SmallInteger }" |
|
480 |
w "{ Class: SmallInteger }" |
|
481 |
"/ eR "{Class: SmallInteger }" |
|
482 |
"/ eG "{Class: SmallInteger }" |
|
483 |
"/ eB "{Class: SmallInteger }" |
|
484 |
"/ wantR "{Class: SmallInteger }" |
|
485 |
"/ wantG "{Class: SmallInteger }" |
|
486 |
"/ wantB "{Class: SmallInteger }" |
|
487 |
fixR "{Class: SmallInteger }" |
|
488 |
fixG "{Class: SmallInteger }" |
|
489 |
fixB "{Class: SmallInteger }" |
|
490 |
srcIndex "{ Class: SmallInteger }" |
|
491 |
dstIndex "{ Class: SmallInteger }" |
|
2529
637a5979a3d0
use new supportedImageFormat query from Device
Claus Gittinger <cg@exept.de>
parents:
2401
diff
changeset
|
492 |
deviceDepth |
1607 | 493 |
fixIds idsUsed failed usedColors| |
282 | 494 |
|
495 |
fixR := nRed. |
|
496 |
fixR == 0 ifTrue:[ ^ nil]. |
|
497 |
fixG := nGreen. |
|
498 |
fixG == 0 ifTrue:[ ^ nil]. |
|
499 |
fixB := nBlue. |
|
500 |
fixB == 0 ifTrue:[ ^ nil]. |
|
501 |
"/ simple check |
|
502 |
(fixR * fixG * fixB) ~~ fixColors size ifTrue:[ |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
503 |
self error:'invalid color array passed'. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
504 |
^ nil |
282 | 505 |
]. |
506 |
fixIds := (fixColors asArray collect:[:clr | clr colorId]) asByteArray. |
|
1607 | 507 |
idsUsed := ByteArray new:(fixIds size). |
282 | 508 |
|
509 |
deviceDepth := aDevice depth. |
|
2529
637a5979a3d0
use new supportedImageFormat query from Device
Claus Gittinger <cg@exept.de>
parents:
2401
diff
changeset
|
510 |
deviceDepth == 8 ifFalse:[ |
637a5979a3d0
use new supportedImageFormat query from Device
Claus Gittinger <cg@exept.de>
parents:
2401
diff
changeset
|
511 |
(aDevice supportedImageFormatForDepth:8) isNil ifTrue:[ |
637a5979a3d0
use new supportedImageFormat query from Device
Claus Gittinger <cg@exept.de>
parents:
2401
diff
changeset
|
512 |
^ nil |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
513 |
] |
282 | 514 |
]. |
515 |
||
1167 | 516 |
'Depth24Image [info]: dithering ...' infoPrintCR. |
282 | 517 |
|
518 |
pseudoBits := ByteArray uninitializedNew:(width * height). |
|
519 |
||
520 |
h := height. |
|
521 |
w := width. |
|
522 |
||
523 |
%{ |
|
524 |
int __x, __y; |
|
525 |
int __eR, __eG, __eB; |
|
526 |
int __wantR, __wantG, __wantB; |
|
527 |
unsigned char *srcP, *dstP; |
|
528 |
unsigned char *redP, *greenP, *blueP; |
|
529 |
int pix; |
|
530 |
unsigned char *idP; |
|
1607 | 531 |
unsigned char *usedIdP; |
282 | 532 |
int __fR, __fG, __fB; |
533 |
int iR, iG, iB; |
|
534 |
int idx; |
|
858 | 535 |
int __w = __intVal(w); |
1817 | 536 |
int leftToRight; |
282 | 537 |
|
858 | 538 |
if (__isByteArray(__INST(bytes)) |
282 | 539 |
&& __isByteArray(pseudoBits) |
540 |
&& __isByteArray(fixIds) |
|
1607 | 541 |
&& __isByteArray(idsUsed) |
282 | 542 |
&& __bothSmallInteger(fixR, fixG) |
543 |
&& __isSmallInteger(fixB)) { |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
544 |
failed = false; |
282 | 545 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
546 |
srcP = __ByteArrayInstPtr(__INST(bytes))->ba_element; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
547 |
dstP = __ByteArrayInstPtr(pseudoBits)->ba_element; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
548 |
idP = __ByteArrayInstPtr(fixIds)->ba_element; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
549 |
usedIdP = __ByteArrayInstPtr(idsUsed)->ba_element; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
550 |
__fR = __intVal(fixR)-1; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
551 |
__fG = __intVal(fixG)-1; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
552 |
__fB = __intVal(fixB)-1; |
282 | 553 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
554 |
__eR = __eG = __eB = 0; |
1818 | 555 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
556 |
leftToRight = 1; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
557 |
for (__y=__intVal(h); __y>0; __y--) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
558 |
if (leftToRight) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
559 |
for (__x=__w; __x>0; __x--) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
560 |
int __want; |
1817 | 561 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
562 |
/* |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
563 |
* wR, wG and wB is the wanted r/g/b value; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
564 |
* compute the index into the dId table .. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
565 |
* values: 0..255; scale to 0..fR-1, 0..fG-1, 0..fB-1 |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
566 |
* |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
567 |
* bad kludge: knows how to index into FixColor table |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
568 |
*/ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
569 |
__wantR = __want = srcP[0] + __eR; |
1817 | 570 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
571 |
if (__want > 255) __want = 255; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
572 |
else if (__want < 0) __want = 0; |
1817 | 573 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
574 |
iR = __want * __fR / 128; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
575 |
iR = (iR / 2) + (iR & 1); |
282 | 576 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
577 |
__wantG = __want = srcP[1] + __eG; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
578 |
if (__want > 255) __want = 255; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
579 |
else if (__want < 0) __want = 0; |
1817 | 580 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
581 |
iG = __want * __fG / 128; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
582 |
iG = (iG / 2) + (iG & 1); |
1817 | 583 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
584 |
__wantB = __want = srcP[2] + __eB; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
585 |
if (__want > 255) __want = 255; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
586 |
else if (__want < 0) __want = 0; |
282 | 587 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
588 |
iB = __want * __fB / 128; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
589 |
iB = (iB / 2) + (iB & 1); |
1817 | 590 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
591 |
idx = iR * (__fG+1); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
592 |
idx = (idx + iG) * (__fB+1); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
593 |
idx = idx + iB; |
858 | 594 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
595 |
/* |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
596 |
* store the corresponding dither colorId |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
597 |
*/ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
598 |
*dstP++ = idP[idx]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
599 |
usedIdP[idx] = 1; |
282 | 600 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
601 |
srcP += 3; |
282 | 602 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
603 |
/* |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
604 |
* the new error: |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
605 |
*/ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
606 |
__eR = __wantR - (iR * 256 / __fR); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
607 |
__eG = __wantG - (iG * 256 / __fG); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
608 |
__eB = __wantB - (iB * 256 / __fB); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
609 |
} |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
610 |
leftToRight = 0; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
611 |
} else { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
612 |
srcP += (__w*3); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
613 |
dstP += __w; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
614 |
for (__x=__w; __x>0; __x--) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
615 |
int __want; |
282 | 616 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
617 |
/* |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
618 |
* wR, wG and wB is the wanted r/g/b value; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
619 |
* compute the index into the dId table .. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
620 |
* values: 0..255; scale to 0..fR-1, 0..fG-1, 0..fB-1 |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
621 |
* |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
622 |
* bad kludge: knows how to index into FixColor table |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
623 |
*/ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
624 |
srcP -= 3; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
625 |
__wantR = __want = srcP[0] + __eR; |
282 | 626 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
627 |
if (__want > 255) __want = 255; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
628 |
else if (__want < 0) __want = 0; |
1817 | 629 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
630 |
iR = __want * __fR / 128; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
631 |
iR = (iR / 2) + (iR & 1); |
282 | 632 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
633 |
__wantG = __want = srcP[1] + __eG; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
634 |
if (__want > 255) __want = 255; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
635 |
else if (__want < 0) __want = 0; |
1817 | 636 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
637 |
iG = __want * __fG / 128; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
638 |
iG = (iG / 2) + (iG & 1); |
1817 | 639 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
640 |
__wantB = __want = srcP[2] + __eB; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
641 |
if (__want > 255) __want = 255; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
642 |
else if (__want < 0) __want = 0; |
1817 | 643 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
644 |
iB = __want * __fB / 128; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
645 |
iB = (iB / 2) + (iB & 1); |
282 | 646 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
647 |
idx = iR * (__fG+1); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
648 |
idx = (idx + iG) * (__fB+1); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
649 |
idx = idx + iB; |
1817 | 650 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
651 |
/* |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
652 |
* store the corresponding dither colorId |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
653 |
*/ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
654 |
*--dstP = idP[idx]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
655 |
usedIdP[idx] = 1; |
858 | 656 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
657 |
/* |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
658 |
* the new error: |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
659 |
*/ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
660 |
__eR = __wantR - (iR * 256 / __fR); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
661 |
__eG = __wantG - (iG * 256 / __fG); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
662 |
__eB = __wantB - (iB * 256 / __fB); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
663 |
} |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
664 |
srcP += (__w*3); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
665 |
dstP += __w; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
666 |
leftToRight = 1; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
667 |
} |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
668 |
} |
282 | 669 |
} |
670 |
%}. |
|
671 |
failed ifTrue:[ |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
672 |
self primitiveFailed. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
673 |
^ nil |
282 | 674 |
|
675 |
"/ for non-C programmers: |
|
1218
2d7c79e5965f
oops - dont limit myself on Display
Claus Gittinger <cg@exept.de>
parents:
1177
diff
changeset
|
676 |
"/ the above code is (roughly) equivalent to: |
2d7c79e5965f
oops - dont limit myself on Display
Claus Gittinger <cg@exept.de>
parents:
1177
diff
changeset
|
677 |
"/ (but it is just as ugly looking as the above ;-) |
2d7c79e5965f
oops - dont limit myself on Display
Claus Gittinger <cg@exept.de>
parents:
1177
diff
changeset
|
678 |
"/ |
282 | 679 |
"/ srcIndex := 1. |
680 |
"/ dstIndex := 1. |
|
681 |
"/ 1 to:h do:[:y | |
|
682 |
"/ eR := eG := eB := 0. |
|
683 |
"/ 1 to:w do:[:x | |
|
684 |
"/ |pixel "{ Class: SmallInteger }" |
|
685 |
"/ clr |
|
686 |
"/ idx "{ Class: SmallInteger }" |
|
687 |
"/ iR "{ Class: SmallInteger }" |
|
688 |
"/ iG "{ Class: SmallInteger }" |
|
689 |
"/ iB "{ Class: SmallInteger }" |
|
690 |
"/ wR "{ Class: SmallInteger }" |
|
691 |
"/ wG "{ Class: SmallInteger }" |
|
692 |
"/ wB "{ Class: SmallInteger }" | |
|
693 |
"/ |
|
694 |
"/ wantR := ((bytes at:srcIndex) + eR). srcIndex := srcIndex + 1. |
|
695 |
"/ wantG := ((bytes at:srcIndex) + eG). srcIndex := srcIndex + 1. |
|
696 |
"/ wantB := ((bytes at:srcIndex) + eB). srcIndex := srcIndex + 1. |
|
697 |
"/ wR := wantR. |
|
698 |
"/ wR > 255 ifTrue:[wR := 255] ifFalse:[wR < 0 ifTrue:[wR := 0]]. |
|
699 |
"/ wG := wantG. |
|
700 |
"/ wG > 255 ifTrue:[wG := 255] ifFalse:[wG < 0 ifTrue:[wG := 0]]. |
|
701 |
"/ wB := wantB. |
|
702 |
"/ wB > 255 ifTrue:[wB := 255] ifFalse:[wB < 0 ifTrue:[wB := 0]]. |
|
703 |
"/ |
|
704 |
"/ iR := wR * (fixR-1) // 128. |
|
705 |
"/ iR := (iR // 2) + (iR bitAnd:1). |
|
706 |
"/ iG := wG * (fixG-1) // 128. |
|
707 |
"/ iG := (iG // 2) + (iG bitAnd:1). |
|
708 |
"/ iB := wB * (fixB-1) // 128. |
|
709 |
"/ iB := (iB // 2) + (iB bitAnd:1). |
|
710 |
"/ idx := (iR * fixR + iG) * fixB + iB + 1. |
|
711 |
"/ |
|
712 |
"/ clr := fixColors at:idx. |
|
713 |
"/ |
|
714 |
"/ eR := wantR - (clr red * 2) asInteger. |
|
715 |
"/ eG := wantG - (clr green * 2) asInteger. |
|
716 |
"/ eB := wantB - (clr blue * 2) asInteger. |
|
717 |
"/ |
|
718 |
"/ pixel := clr colorId. |
|
719 |
"/ pseudoBits at:dstIndex put:pixel. |
|
720 |
"/ |
|
721 |
"/ dstIndex := dstIndex + 1 |
|
722 |
"/ ]. |
|
723 |
]. |
|
724 |
||
1607 | 725 |
"/ not all colors may be really in use ... |
726 |
usedColors := fixColors copy. |
|
727 |
idsUsed keysAndValuesDo:[:idx :flag | |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
728 |
flag == 0 ifTrue:[ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
729 |
usedColors at:idx put:nil |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
730 |
] |
1607 | 731 |
]. |
732 |
||
282 | 733 |
f := Form width:width height:height depth:aDevice depth on:aDevice. |
734 |
f isNil ifTrue:[^ nil]. |
|
1607 | 735 |
f colorMap:usedColors. |
282 | 736 |
f initGC. |
1999
9ccc51eea588
always pass the padding down to device
Claus Gittinger <cg@exept.de>
parents:
1932
diff
changeset
|
737 |
aDevice |
9ccc51eea588
always pass the padding down to device
Claus Gittinger <cg@exept.de>
parents:
1932
diff
changeset
|
738 |
drawBits:pseudoBits |
9ccc51eea588
always pass the padding down to device
Claus Gittinger <cg@exept.de>
parents:
1932
diff
changeset
|
739 |
bitsPerPixel:8 |
9ccc51eea588
always pass the padding down to device
Claus Gittinger <cg@exept.de>
parents:
1932
diff
changeset
|
740 |
depth:aDevice depth |
9ccc51eea588
always pass the padding down to device
Claus Gittinger <cg@exept.de>
parents:
1932
diff
changeset
|
741 |
padding:8 |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
742 |
width:width height:height |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
743 |
x:0 y:0 |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
744 |
into:(f id) |
1999
9ccc51eea588
always pass the padding down to device
Claus Gittinger <cg@exept.de>
parents:
1932
diff
changeset
|
745 |
x:0 y:0 |
9ccc51eea588
always pass the padding down to device
Claus Gittinger <cg@exept.de>
parents:
1932
diff
changeset
|
746 |
width:width height:height |
9ccc51eea588
always pass the padding down to device
Claus Gittinger <cg@exept.de>
parents:
1932
diff
changeset
|
747 |
with:(f gcId). |
282 | 748 |
^ f |
749 |
! |
|
750 |
||
1 | 751 |
rgbImageAsPseudoFormOn:aDevice |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
752 |
"return a pseudocolor form from the rgb-picture. |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
753 |
If a colorCube is used, pass the work on to the cube-dither |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
754 |
code. Otherwise, allocate as many colors as possible, then |
1607 | 755 |
use those for dithering. |
756 |
Could be improved, by searching for (& allocating) |
|
757 |
heavily used colors and/or min-max colors first." |
|
1 | 758 |
|
759 |
|pseudoBits f |
|
760 |
r "{ Class: SmallInteger }" |
|
761 |
g "{ Class: SmallInteger }" |
|
762 |
b "{ Class: SmallInteger }" |
|
763 |
srcIndex "{ Class: SmallInteger }" |
|
764 |
dstIndex "{ Class: SmallInteger }" |
|
765 |
rMask "{ Class: SmallInteger }" |
|
766 |
gMask "{ Class: SmallInteger }" |
|
767 |
bMask "{ Class: SmallInteger }" |
|
768 |
redArray greenArray blueArray |
|
769 |
dataSize "{ Class: SmallInteger }" |
|
770 |
nColors "{ Class: SmallInteger }" |
|
1629
7735e52e84f0
earlier break out of color allocation loop
Claus Gittinger <cg@exept.de>
parents:
1607
diff
changeset
|
771 |
fit fitMap colors color ditherColors |
1 | 772 |
fast |
773 |
colorIndex "{ Class: SmallInteger }" |
|
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
774 |
depth nColorCells deep nColorsNeeded| |
89 | 775 |
|
938
1926ecac24b5
fixColor and ditherColor stuff moved from Color
Claus Gittinger <cg@exept.de>
parents:
886
diff
changeset
|
776 |
aDevice fixColors notNil ifTrue:[ |
2535 | 777 |
"/ no need to look for used colors - dithering anyway ... |
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
778 |
|
2535 | 779 |
f := self rgbImageAsDitheredPseudoFormOn:aDevice. |
780 |
f notNil ifTrue:[^ f]. |
|
89 | 781 |
]. |
1 | 782 |
|
783 |
"find used colors; build color-tree" |
|
784 |
||
785 |
fit := false. |
|
786 |
fitMap := false. |
|
787 |
depth := aDevice depth. |
|
788 |
nColorCells := aDevice ncells. |
|
789 |
||
89 | 790 |
deep := (depth > 8). |
791 |
||
1 | 792 |
rMask := 2r11111111. |
793 |
gMask := 2r11111111. |
|
794 |
bMask := 2r11111111. |
|
795 |
||
1167 | 796 |
'Depth24Image [info]: allocating colors ...' infoPrintCR. |
66 | 797 |
|
1 | 798 |
[fit] whileFalse:[ |
2535 | 799 |
[fitMap] whileFalse:[ |
800 |
srcIndex := 1. |
|
801 |
redArray := Array new:256. |
|
1 | 802 |
|
2535 | 803 |
" |
804 |
find used colors, build [r][g][b] 3-dimensional array |
|
805 |
containing true for used colors |
|
806 |
" |
|
807 |
nColors := 0. |
|
808 |
srcIndex := 1. |
|
809 |
dataSize := bytes size. |
|
810 |
[(srcIndex < dataSize) |
|
811 |
and:[nColors <= nColorCells]] whileTrue:[ |
|
1 | 812 |
%{ |
2535 | 813 |
if (__isByteArray(_INST(bytes))) { |
814 |
int sI = __intVal(srcIndex); |
|
815 |
unsigned char *cp = __ByteArrayInstPtr(_INST(bytes))->ba_element; |
|
1 | 816 |
|
2535 | 817 |
r = __MKSMALLINT((cp[sI - 1] & __intVal(rMask)) + 1); |
818 |
g = __MKSMALLINT((cp[sI] & __intVal(gMask)) + 1); |
|
819 |
b = __MKSMALLINT((cp[sI + 1] & __intVal(bMask)) + 1); |
|
820 |
srcIndex = __MKSMALLINT(sI + 3); |
|
821 |
fast = true; |
|
822 |
} else { |
|
823 |
fast = false; |
|
824 |
} |
|
1 | 825 |
%} |
826 |
. |
|
2535 | 827 |
fast ifFalse:[ |
828 |
r := bytes at:srcIndex. |
|
829 |
r := (r bitAnd:rMask) + 1. |
|
830 |
srcIndex := srcIndex + 1. |
|
831 |
g := bytes at:srcIndex. |
|
832 |
g := (g bitAnd:gMask) + 1. |
|
833 |
srcIndex := srcIndex + 1. |
|
834 |
b := bytes at:srcIndex. |
|
835 |
b := (b bitAnd:bMask) + 1. |
|
836 |
srcIndex := srcIndex + 1 |
|
837 |
]. |
|
1 | 838 |
|
2535 | 839 |
greenArray := redArray at:r. |
840 |
greenArray isNil ifTrue:[ |
|
841 |
greenArray := Array new:256. |
|
842 |
redArray at:r put:greenArray |
|
843 |
]. |
|
844 |
blueArray := greenArray at:g. |
|
845 |
blueArray isNil ifTrue:[ |
|
846 |
deep ifTrue:[blueArray := Array new:256] |
|
847 |
ifFalse:[blueArray := ByteArray new:256]. |
|
848 |
greenArray at:g put:blueArray |
|
849 |
]. |
|
850 |
(blueArray at:b) == 0 ifTrue:[ |
|
851 |
blueArray at:b put:1. |
|
852 |
nColors := nColors + 1. |
|
853 |
(nColors > nColorCells) ifTrue:[ |
|
1923
cdd2c4e199df
if device is running out of allocatable colors,
Claus Gittinger <cg@exept.de>
parents:
1818
diff
changeset
|
854 |
"/ 'Depth24Image [info]: more than ' infoPrint. nColorCells infoPrint. ' colors' infoPrintCR. |
2535 | 855 |
srcIndex := dataSize + 1 |
856 |
] |
|
857 |
] |
|
858 |
]. |
|
859 |
nColorsNeeded isNil ifTrue:[ |
|
860 |
nColorsNeeded := nColors |
|
861 |
]. |
|
1 | 862 |
|
2535 | 863 |
"again with less color bits if it does not fit colormap" |
1 | 864 |
|
2535 | 865 |
(nColors <= nColorCells) ifTrue:[ |
866 |
fitMap := true |
|
867 |
] ifFalse:[ |
|
868 |
"/ must try again - cutting off some bits |
|
869 |
"/ blue bits are snipped off faster. |
|
870 |
(bMask == 2r11111111) ifTrue:[ |
|
871 |
bMask := 2r11111100 |
|
872 |
] ifFalse:[ |
|
873 |
(bMask == 2r11111100) ifTrue:[ |
|
874 |
bMask := 2r11110000 |
|
875 |
] ifFalse:[ |
|
876 |
(rMask == 2r11111111) ifTrue:[ |
|
877 |
rMask := 2r11111100. |
|
878 |
gMask := 2r11111100. |
|
879 |
] ifFalse:[ |
|
880 |
rMask := (rMask bitShift:1) bitAnd:2r11111111. |
|
881 |
gMask := (gMask bitShift:1) bitAnd:2r11111111. |
|
882 |
bMask := (bMask bitShift:1) bitAnd:2r11111111 |
|
883 |
] |
|
884 |
] |
|
885 |
]. |
|
1923
cdd2c4e199df
if device is running out of allocatable colors,
Claus Gittinger <cg@exept.de>
parents:
1818
diff
changeset
|
886 |
"/ 'Depth24Image [info]: too many colors; retry with less color resolution' infoPrintCR. |
38 | 887 |
" |
1 | 888 |
'masks:' print. rMask print. ' ' print. gMask print. ' ' print. |
889 |
bMask printNewline |
|
38 | 890 |
" |
2535 | 891 |
] |
892 |
]. |
|
1 | 893 |
|
1923
cdd2c4e199df
if device is running out of allocatable colors,
Claus Gittinger <cg@exept.de>
parents:
1818
diff
changeset
|
894 |
"/ 'Depth24Image [info]: ' infoPrint. nColors infoPrint. ' colors used' infoPrintCR. |
89 | 895 |
|
2535 | 896 |
colors := Array new:nColors. |
897 |
colorIndex := 1. |
|
1 | 898 |
|
2535 | 899 |
" |
900 |
now, we have reduced things to the number of colors |
|
901 |
which are theoretically supported by the devices colormap. |
|
902 |
allocate all used colors in walking over true entries in |
|
903 |
the [r][g][b] table - this may still fail, |
|
904 |
if we run out of device colors. |
|
905 |
" |
|
906 |
fit := true. |
|
1 | 907 |
|
2535 | 908 |
r := 0. |
909 |
redArray do:[:greenArray | |
|
910 |
(fit and:[greenArray notNil]) ifTrue:[ |
|
911 |
g := 0. |
|
912 |
greenArray do:[:blueArray | |
|
913 |
(fit and:[blueArray notNil]) ifTrue:[ |
|
914 |
b := 0. |
|
915 |
blueArray do:[:present | |
|
916 |
|id| |
|
89 | 917 |
|
2535 | 918 |
(fit and:[present ~~ 0]) ifTrue:[ |
919 |
color := Color redByte:r |
|
920 |
greenByte:g |
|
921 |
blueByte:b. |
|
2835 | 922 |
color := color onDevice:aDevice. |
2535 | 923 |
(id := color colorId) isNil ifTrue:[ |
924 |
fit := false |
|
925 |
] ifFalse:[ |
|
926 |
colors at:colorIndex put:color. |
|
927 |
colorIndex := colorIndex + 1. |
|
928 |
blueArray at:(b + 1) put:id |
|
929 |
] |
|
930 |
]. |
|
931 |
b := b + 1 |
|
932 |
] |
|
933 |
]. |
|
934 |
g := g + 1 |
|
935 |
] |
|
936 |
]. |
|
937 |
r := r + 1 |
|
938 |
]. |
|
1 | 939 |
|
2535 | 940 |
"again with less color bits if we did not get all colors" |
1 | 941 |
|
2535 | 942 |
fit ifFalse:[ |
1923
cdd2c4e199df
if device is running out of allocatable colors,
Claus Gittinger <cg@exept.de>
parents:
1818
diff
changeset
|
943 |
"/ 'Depth24Image [info]: could not allocate color(s)' infoPrintCR. |
1 | 944 |
|
2535 | 945 |
"free the allocated colors" |
946 |
colors atAllPut:nil. |
|
947 |
"a kludge - force immediate freeing of colors" |
|
948 |
ObjectMemory scavenge; finalize. |
|
1 | 949 |
|
2535 | 950 |
"cut off one more color-bit - cut off blue first" |
951 |
(bMask == 2r11111111) ifTrue:[ |
|
952 |
bMask := 2r11111100 |
|
953 |
] ifFalse:[ |
|
954 |
(bMask == 2r11111100) ifTrue:[ |
|
955 |
bMask := 2r11110000 |
|
956 |
] ifFalse:[ |
|
957 |
(rMask == 2r11111111) ifTrue:[ |
|
958 |
rMask := 2r11111100. |
|
959 |
gMask := 2r11111100. |
|
960 |
] ifFalse:[ |
|
961 |
rMask := (rMask bitShift:1) bitAnd:2r11111111. |
|
962 |
gMask := (gMask bitShift:1) bitAnd:2r11111111. |
|
963 |
bMask := (bMask bitShift:1) bitAnd:2r11111111 |
|
964 |
] |
|
965 |
] |
|
966 |
]. |
|
967 |
fitMap := false. |
|
968 |
redArray := nil |
|
969 |
] |
|
1 | 970 |
]. |
971 |
||
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
972 |
(nColors ~~ nColorsNeeded) ifTrue:[ |
2535 | 973 |
"/ mhmh - did not get all colors ... |
974 |
"/ add existing colors and dither. |
|
1607 | 975 |
|
2535 | 976 |
'Depth24Image [info]: only got ' infoPrint. nColors infoPrint. ' out of ' infoPrint. |
977 |
nColorsNeeded infoPrint. ' image colors.' infoPrintCR. |
|
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
978 |
|
2535 | 979 |
"/ |
980 |
"/ dither using those we got ... |
|
981 |
"/ |
|
982 |
DitherAlgorithm == #floydSteinberg ifTrue:[ |
|
983 |
colors := colors asSet. |
|
1629
7735e52e84f0
earlier break out of color allocation loop
Claus Gittinger <cg@exept.de>
parents:
1607
diff
changeset
|
984 |
"/ ditherColors := aDevice availableDitherColors. |
7735e52e84f0
earlier break out of color allocation loop
Claus Gittinger <cg@exept.de>
parents:
1607
diff
changeset
|
985 |
"/ ditherColors notNil ifTrue:[ |
7735e52e84f0
earlier break out of color allocation loop
Claus Gittinger <cg@exept.de>
parents:
1607
diff
changeset
|
986 |
"/ colors addAll:ditherColors. |
7735e52e84f0
earlier break out of color allocation loop
Claus Gittinger <cg@exept.de>
parents:
1607
diff
changeset
|
987 |
"/ ]. |
1923
cdd2c4e199df
if device is running out of allocatable colors,
Claus Gittinger <cg@exept.de>
parents:
1818
diff
changeset
|
988 |
"/ colors addAll:aDevice deviceColors. |
2535 | 989 |
colors addAll:(aDevice colorMap collect:[:c|c onDevice:aDevice]). |
990 |
colors := colors select:[:c | c colorId notNil]. |
|
991 |
colors := colors asArray. |
|
992 |
colors size > 256 ifTrue:[ |
|
993 |
colors := colors copyTo:256 |
|
994 |
]. |
|
995 |
f := self rgbImageAsDitheredPseudoFormOn:aDevice colors:colors. |
|
996 |
f notNil ifTrue:[^ f]. |
|
997 |
]. |
|
998 |
]. |
|
999 |
||
1000 |
"/ the device ought to support 8-bit images ... |
|
1001 |
(aDevice supportedImageFormatForDepth:8) isNil ifTrue:[ |
|
1002 |
"/ cannot draw directly |
|
1003 |
^ nil |
|
1597
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
1004 |
]. |
019f40ecbe64
added dither code for no-colorCube case.
Claus Gittinger <cg@exept.de>
parents:
1577
diff
changeset
|
1005 |
|
1 | 1006 |
"create pseudocolor bits and translate" |
1007 |
||
1008 |
pseudoBits := ByteArray uninitializedNew:(width * height). |
|
1009 |
||
1010 |
srcIndex := 1. |
|
1011 |
dstIndex := 1. |
|
1012 |
||
89 | 1013 |
(rMask == 2r11111111 |
1014 |
and:[gMask == 2r11111111 |
|
1015 |
and:[bMask == 2r11111111]]) ifTrue:[ |
|
2535 | 1016 |
[srcIndex < dataSize] whileTrue:[ |
1017 |
r := bytes at:srcIndex. |
|
1018 |
srcIndex := srcIndex + 1. |
|
1019 |
g := bytes at:srcIndex. |
|
1020 |
srcIndex := srcIndex + 1. |
|
1021 |
b := bytes at:srcIndex. |
|
1022 |
srcIndex := srcIndex + 1. |
|
1023 |
greenArray := redArray at:(r + 1). |
|
1024 |
blueArray := greenArray at:(g + 1). |
|
1025 |
pseudoBits at:dstIndex put:(blueArray at:(b + 1)). |
|
1026 |
dstIndex := dstIndex + 1 |
|
1027 |
] |
|
89 | 1028 |
] ifFalse:[ |
2535 | 1029 |
[srcIndex < dataSize] whileTrue:[ |
1030 |
r := bytes at:srcIndex. |
|
1031 |
r := r bitAnd:rMask. |
|
1032 |
srcIndex := srcIndex + 1. |
|
1033 |
g := bytes at:srcIndex. |
|
1034 |
g := g bitAnd:gMask. |
|
1035 |
srcIndex := srcIndex + 1. |
|
1036 |
b := bytes at:srcIndex. |
|
1037 |
b := b bitAnd:bMask. |
|
1038 |
srcIndex := srcIndex + 1. |
|
1039 |
greenArray := redArray at:(r + 1). |
|
1040 |
blueArray := greenArray at:(g + 1). |
|
1041 |
pseudoBits at:dstIndex put:(blueArray at:(b + 1)). |
|
1042 |
dstIndex := dstIndex + 1 |
|
1043 |
] |
|
1 | 1044 |
]. |
1045 |
||
89 | 1046 |
f := Form width:width height:height depth:depth on:aDevice. |
1 | 1047 |
f isNil ifTrue:[^ nil]. |
1048 |
f colorMap:colors. |
|
1049 |
f initGC. |
|
1999
9ccc51eea588
always pass the padding down to device
Claus Gittinger <cg@exept.de>
parents:
1932
diff
changeset
|
1050 |
aDevice |
2535 | 1051 |
drawBits:pseudoBits |
1052 |
bitsPerPixel:8 |
|
1053 |
depth:depth |
|
1054 |
padding:8 |
|
1055 |
width:width height:height |
|
1056 |
x:0 y:0 |
|
1057 |
into:(f id) |
|
1058 |
x:0 y:0 |
|
1059 |
width:width height:height |
|
1060 |
with:(f gcId). |
|
1 | 1061 |
^ f |
194 | 1062 |
! |
1063 |
||
1064 |
rgbImageAsTrueColorFormOn:aDevice |
|
1065 |
"return a truecolor form from the rgb-picture." |
|
1066 |
||
2064 | 1067 |
|bestFormat usedDeviceDepth usedDeviceBitsPerPixel usedDevicePadding depth |
2067 | 1068 |
myDepth form imageBits destIndex srcIndex padd |
856 | 1069 |
rightShiftR rightShiftG rightShiftB shiftRed shiftGreen shiftBlue| |
194 | 1070 |
|
1071 |
bestFormat := self bestSupportedImageFormatFor:aDevice. |
|
236 | 1072 |
usedDeviceDepth := bestFormat at:#depth. |
1073 |
usedDeviceBitsPerPixel := bestFormat at:#bitsPerPixel. |
|
2064 | 1074 |
usedDevicePadding := bestFormat at:#padding. |
194 | 1075 |
|
1076 |
rightShiftR := (8 - aDevice bitsRed). |
|
1077 |
rightShiftG := (8 - aDevice bitsGreen). |
|
1078 |
rightShiftB := (8 - aDevice bitsBlue). |
|
1079 |
||
1080 |
shiftRed := aDevice shiftRed. |
|
1081 |
shiftGreen := aDevice shiftGreen. |
|
1082 |
shiftBlue := aDevice shiftBlue. |
|
1083 |
||
1084 |
"/ |
|
1085 |
"/ for now, only a few formats are supported |
|
1086 |
"/ |
|
1087 |
myDepth := self bitsPerPixel. |
|
1088 |
myDepth == usedDeviceBitsPerPixel ifTrue:[ |
|
3357 | 1089 |
"/ |
1090 |
"/ first, the trivial case, where the depths match |
|
1091 |
"/ 24 bit/pixel |
|
1092 |
"/ |
|
1093 |
imageBits := bytes. |
|
1094 |
"/ |
|
1095 |
"/ however, the rgb-order could still be different |
|
1096 |
"/ |
|
1097 |
(shiftBlue == 0) ifFalse:[ |
|
1098 |
imageBits := ByteArray uninitializedNew:(width * height * 3). |
|
1099 |
usedDevicePadding := 8. |
|
2064 | 1100 |
|
3357 | 1101 |
"/ now, walk over the image and compose 24bit values from the r/g/b triples |
2064 | 1102 |
%{ |
3357 | 1103 |
unsigned char *srcPtr = 0; |
1104 |
unsigned char *dstPtr = 0; |
|
2346
7d018cf65a14
start to support externalBytes as pixel storage
Claus Gittinger <cg@exept.de>
parents:
2301
diff
changeset
|
1105 |
|
3357 | 1106 |
if (__isByteArray(__INST(bytes))) { |
1107 |
srcPtr = _ByteArrayInstPtr(__INST(bytes))->ba_element; |
|
1108 |
} else { |
|
3849
b5e6139995a2
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
1109 |
if (__isExternalBytesLike(__INST(bytes))) { |
3357 | 1110 |
srcPtr = __externalBytesAddress(__INST(bytes)); |
1111 |
} |
|
1112 |
} |
|
1113 |
if (__isByteArray(imageBits)) { |
|
1114 |
dstPtr = _ByteArrayInstPtr(imageBits)->ba_element; |
|
1115 |
} else { |
|
3849
b5e6139995a2
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
1116 |
if (__isExternalBytesLike(imageBits)) { |
3357 | 1117 |
dstPtr = __externalBytesAddress(imageBits); |
1118 |
} |
|
1119 |
} |
|
2346
7d018cf65a14
start to support externalBytes as pixel storage
Claus Gittinger <cg@exept.de>
parents:
2301
diff
changeset
|
1120 |
|
3357 | 1121 |
if (__bothSmallInteger(_INST(height), _INST(width)) |
1122 |
&& __bothSmallInteger(rightShiftR, shiftRed) |
|
1123 |
&& __bothSmallInteger(rightShiftG, shiftGreen) |
|
1124 |
&& __bothSmallInteger(rightShiftB, shiftBlue) |
|
1125 |
&& srcPtr |
|
1126 |
&& dstPtr) { |
|
1127 |
int rShRed = __intVal(rightShiftR), |
|
1128 |
rShGreen = __intVal(rightShiftG), |
|
1129 |
rShBlue = __intVal(rightShiftB), |
|
1130 |
lShRed = __intVal(shiftRed), |
|
1131 |
lShGreen = __intVal(shiftGreen), |
|
1132 |
lShBlue = __intVal(shiftBlue); |
|
1133 |
int x, y, w; |
|
2064 | 1134 |
|
3357 | 1135 |
w = __intVal(_INST(width)); |
1136 |
if ((rShRed == 0) && (rShGreen == 0) && (rShBlue == 0)) { |
|
1137 |
for (y=__intVal(_INST(height)); y > 0; y--) { |
|
1138 |
for (x=w; x > 0; x--) { |
|
1139 |
unsigned v; |
|
2064 | 1140 |
|
3357 | 1141 |
v = srcPtr[0] << lShRed; |
1142 |
v |= (srcPtr[1] << lShGreen); |
|
1143 |
v |= (srcPtr[2] << lShBlue); |
|
2401 | 1144 |
# ifdef __MSBFIRST |
3357 | 1145 |
dstPtr[0] = (v) & 0xFF; |
1146 |
dstPtr[1] = (v>>8) & 0xFF; |
|
1147 |
dstPtr[2] = (v>>16) & 0xFF; |
|
1148 |
# else /* not MSB */ |
|
1149 |
dstPtr[0] = (v>>16) & 0xFF; |
|
1150 |
dstPtr[1] = (v>>8) & 0xFF; |
|
1151 |
dstPtr[2] = (v) & 0xFF; |
|
1152 |
# endif /* not MSB */ |
|
1153 |
dstPtr += 3; |
|
1154 |
srcPtr += 3; |
|
1155 |
} |
|
1156 |
} |
|
1157 |
} else { |
|
1158 |
for (y=__intVal(_INST(height)); y > 0; y--) { |
|
1159 |
for (x=w; x > 0; x--) { |
|
1160 |
unsigned r, g, b, v; |
|
2064 | 1161 |
|
3357 | 1162 |
r = srcPtr[0] >> rShRed; |
1163 |
g = srcPtr[1] >> rShGreen; |
|
1164 |
b = srcPtr[2] >> rShBlue; |
|
1165 |
v = r << lShRed; |
|
1166 |
v |= (g << lShGreen); |
|
1167 |
v |= (b << lShBlue); |
|
2401 | 1168 |
# ifdef __MSBFIRST |
3357 | 1169 |
dstPtr[0] = (v) & 0xFF; |
1170 |
dstPtr[1] = (v>>8) & 0xFF; |
|
1171 |
dstPtr[2] = (v>>16) & 0xFF; |
|
1172 |
# else /* not MSB */ |
|
1173 |
dstPtr[0] = (v>>16) & 0xFF; |
|
1174 |
dstPtr[1] = (v>>8) & 0xFF; |
|
1175 |
dstPtr[2] = (v) & 0xFF; |
|
1176 |
# endif /* not MSB */ |
|
1177 |
dstPtr += 3; |
|
1178 |
srcPtr += 3; |
|
1179 |
} |
|
1180 |
} |
|
1181 |
} |
|
1182 |
} |
|
2064 | 1183 |
%}. |
3357 | 1184 |
] |
194 | 1185 |
] ifFalse:[ |
3357 | 1186 |
"/ |
1187 |
"/ 16 bit/pixel ... |
|
1188 |
"/ |
|
1189 |
(usedDeviceBitsPerPixel == 16) ifTrue:[ |
|
1190 |
padd := width \\ (usedDevicePadding // 16). |
|
1191 |
imageBits := ByteArray uninitializedNew:((width + padd) * height * 2). |
|
194 | 1192 |
|
3357 | 1193 |
"/ now, walk over the image and compose 16bit values from the r/g/b triples |
194 | 1194 |
|
856 | 1195 |
%{ |
3357 | 1196 |
if (__bothSmallInteger(_INST(height),_INST(width)) |
1197 |
&& __bothSmallInteger(rightShiftR, shiftRed) |
|
1198 |
&& __bothSmallInteger(rightShiftG, shiftGreen) |
|
1199 |
&& __bothSmallInteger(rightShiftB, shiftBlue) |
|
1200 |
&& __isByteArray(_INST(bytes)) |
|
1201 |
&& __isByteArray(imageBits)) { |
|
1202 |
int rShRed = __intVal(rightShiftR), |
|
1203 |
rShGreen = __intVal(rightShiftG), |
|
1204 |
rShBlue = __intVal(rightShiftB), |
|
1205 |
lShRed = __intVal(shiftRed), |
|
1206 |
lShGreen = __intVal(shiftGreen), |
|
1207 |
lShBlue = __intVal(shiftBlue); |
|
1208 |
int x, y, w; |
|
1209 |
int p; |
|
1210 |
||
1211 |
unsigned char *srcPtr = __ByteArrayInstPtr(_INST(bytes))->ba_element; |
|
1212 |
unsigned char *dstPtr = __ByteArrayInstPtr(imageBits)->ba_element; |
|
1213 |
||
1214 |
w = __intVal(_INST(width)); |
|
1215 |
p = __intVal(padd) * 2; |
|
1216 |
||
1217 |
if ((rShRed == 0) && (rShGreen == 0) && (rShBlue == 0)) { |
|
1218 |
for (y=__intVal(_INST(height)); y > 0; y--) { |
|
1219 |
for (x=w; x > 0; x--) { |
|
1220 |
unsigned v; |
|
194 | 1221 |
|
3357 | 1222 |
v = srcPtr[0] << lShRed; |
1223 |
v |= (srcPtr[1] << lShGreen); |
|
1224 |
v |= (srcPtr[2] << lShBlue); |
|
1225 |
# ifdef __MSBFIRST |
|
1226 |
((short *)dstPtr)[0] = v; |
|
1227 |
# else /* not MSB */ |
|
1228 |
dstPtr[0] = (v>>8) & 0xFF; |
|
1229 |
dstPtr[1] = (v) & 0xFF; |
|
1230 |
# endif /* not MSB */ |
|
1231 |
dstPtr += 2; |
|
1232 |
srcPtr += 3; |
|
1233 |
} |
|
1234 |
dstPtr += p; |
|
1235 |
} |
|
1236 |
} else { |
|
1237 |
if (p == 0) { |
|
1238 |
int n = __intVal(__INST(height)) * w; |
|
2064 | 1239 |
|
3357 | 1240 |
while (n >= 2) { |
1241 |
unsigned w, r, g, b, v; |
|
1242 |
||
1243 |
n -= 2; |
|
194 | 1244 |
|
3357 | 1245 |
r = srcPtr[0]; |
1246 |
g = srcPtr[1]; |
|
1247 |
b = srcPtr[2]; |
|
1248 |
v = (r >> rShRed) << lShRed; |
|
1249 |
v |= ((g >> rShGreen) << lShGreen); |
|
1250 |
v |= ((b >> rShBlue) << lShBlue); |
|
2401 | 1251 |
# ifdef __MSBFIRST |
3357 | 1252 |
((short *)dstPtr)[0] = v; |
194 | 1253 |
# else |
3357 | 1254 |
dstPtr[0] = (v>>8) & 0xFF; |
1255 |
dstPtr[1] = (v) & 0xFF; |
|
1256 |
# endif /* not MSB */ |
|
194 | 1257 |
|
3357 | 1258 |
r = srcPtr[3]; |
1259 |
g = srcPtr[4]; |
|
1260 |
b = srcPtr[5]; |
|
1261 |
v = (r >> rShRed) << lShRed; |
|
1262 |
v |= ((g >> rShGreen) << lShGreen); |
|
1263 |
v |= ((b >> rShBlue) << lShBlue); |
|
1264 |
# ifdef __MSBFIRST |
|
1265 |
((short *)dstPtr)[1] = v; |
|
1266 |
# else |
|
1267 |
dstPtr[2] = (v>>8) & 0xFF; |
|
1268 |
dstPtr[3] = (v) & 0xFF; |
|
1269 |
# endif /* not MSB */ |
|
1270 |
dstPtr += 4; |
|
1271 |
srcPtr += 6; |
|
1272 |
} |
|
1273 |
||
1274 |
while (n--) { |
|
1275 |
unsigned r, g, b, v; |
|
1276 |
||
1277 |
r = srcPtr[0] >> rShRed; |
|
1278 |
g = srcPtr[1] >> rShGreen; |
|
1279 |
b = srcPtr[2] >> rShBlue; |
|
1280 |
v = r << lShRed; |
|
1281 |
v |= (g << lShGreen); |
|
1282 |
v |= (b << lShBlue); |
|
2401 | 1283 |
# ifdef __MSBFIRST |
3357 | 1284 |
((short *)dstPtr)[0] = v; |
1285 |
# else /* not MSB */ |
|
1286 |
dstPtr[0] = (v>>8) & 0xFF; |
|
1287 |
dstPtr[1] = (v) & 0xFF; |
|
1288 |
# endif /* not MSB */ |
|
1289 |
dstPtr += 2; |
|
1290 |
srcPtr += 3; |
|
1291 |
} |
|
1292 |
} else { |
|
1293 |
for (y=__intVal(_INST(height)); y > 0; y--) { |
|
1294 |
for (x=w; x > 0; x--) { |
|
1295 |
unsigned r, g, b, v; |
|
1296 |
||
1297 |
r = srcPtr[0] >> rShRed; |
|
1298 |
g = srcPtr[1] >> rShGreen; |
|
1299 |
b = srcPtr[2] >> rShBlue; |
|
1300 |
v = r << lShRed; |
|
1301 |
v |= (g << lShGreen); |
|
1302 |
v |= (b << lShBlue); |
|
1303 |
# ifdef __MSBFIRST |
|
1304 |
((short *)dstPtr)[0] = v; |
|
1305 |
# else /* not MSB */ |
|
1306 |
dstPtr[0] = (v>>8) & 0xFF; |
|
1307 |
dstPtr[1] = (v) & 0xFF; |
|
1308 |
# endif /* not MSB */ |
|
1309 |
dstPtr += 2; |
|
1310 |
srcPtr += 3; |
|
1311 |
} |
|
1312 |
dstPtr += p; |
|
1313 |
} |
|
1314 |
} |
|
1315 |
} |
|
1316 |
} |
|
194 | 1317 |
%}. |
3357 | 1318 |
] ifFalse:[ |
1319 |
"/ |
|
1320 |
"/ 32 bits/pixel ... |
|
1321 |
"/ |
|
1322 |
(usedDeviceBitsPerPixel == 32) ifTrue:[ |
|
1323 |
usedDevicePadding := 8. |
|
1324 |
imageBits := ByteArray uninitializedNew:(width * height * 4). |
|
194 | 1325 |
|
3357 | 1326 |
"/ now, walk over the image and compose 32bit values from the r/g/b triples |
194 | 1327 |
|
856 | 1328 |
%{ |
3357 | 1329 |
if (__bothSmallInteger(_INST(height), _INST(width)) |
1330 |
&& __bothSmallInteger(rightShiftR, shiftRed) |
|
1331 |
&& __bothSmallInteger(rightShiftG, shiftGreen) |
|
1332 |
&& __bothSmallInteger(rightShiftB, shiftBlue) |
|
1333 |
&& __isByteArray(_INST(bytes)) |
|
1334 |
&& __isByteArray(imageBits)) { |
|
1335 |
int rShRed = __intVal(rightShiftR), |
|
1336 |
rShGreen = __intVal(rightShiftG), |
|
1337 |
rShBlue = __intVal(rightShiftB), |
|
1338 |
lShRed = __intVal(shiftRed), |
|
1339 |
lShGreen = __intVal(shiftGreen), |
|
1340 |
lShBlue = __intVal(shiftBlue); |
|
1341 |
int x, y, w; |
|
194 | 1342 |
|
3357 | 1343 |
unsigned char *srcPtr = __ByteArrayInstPtr(_INST(bytes))->ba_element; |
1344 |
unsigned char *dstPtr = __ByteArrayInstPtr(imageBits)->ba_element; |
|
194 | 1345 |
|
3357 | 1346 |
w = __intVal(_INST(width)); |
1347 |
if ((rShRed == 0) && (rShGreen == 0) && (rShBlue == 0)) { |
|
1348 |
for (y=__intVal(_INST(height)); y > 0; y--) { |
|
1349 |
for (x=w; x > 0; x--) { |
|
1350 |
unsigned v; |
|
194 | 1351 |
|
3357 | 1352 |
v = srcPtr[0] << lShRed; |
1353 |
v |= (srcPtr[1] << lShGreen); |
|
1354 |
v |= (srcPtr[2] << lShBlue); |
|
2401 | 1355 |
# ifdef __MSBFIRST |
3357 | 1356 |
((int *)dstPtr)[0] = v; |
1357 |
# else /* not MSB */ |
|
1358 |
dstPtr[0] = (v>>24) & 0xFF; |
|
1359 |
dstPtr[1] = (v>>16) & 0xFF; |
|
1360 |
dstPtr[2] = (v>>8) & 0xFF; |
|
1361 |
dstPtr[3] = (v) & 0xFF; |
|
1362 |
# endif /* not MSB */ |
|
1363 |
dstPtr += 4; |
|
1364 |
srcPtr += 3; |
|
1365 |
} |
|
1366 |
} |
|
1367 |
} else { |
|
1368 |
for (y=__intVal(_INST(height)); y > 0; y--) { |
|
1369 |
for (x=w; x > 0; x--) { |
|
1370 |
unsigned r, g, b, v; |
|
194 | 1371 |
|
3357 | 1372 |
r = srcPtr[0] >> rShRed; |
1373 |
g = srcPtr[1] >> rShGreen; |
|
1374 |
b = srcPtr[2] >> rShBlue; |
|
1375 |
v = r << lShRed; |
|
1376 |
v |= (g << lShGreen); |
|
1377 |
v |= (b << lShBlue); |
|
2401 | 1378 |
# ifdef __MSBFIRST |
3357 | 1379 |
((int *)dstPtr)[0] = v; |
1380 |
# else /* not MSB */ |
|
1381 |
dstPtr[0] = (v>>24) & 0xFF; |
|
1382 |
dstPtr[1] = (v>>16) & 0xFF; |
|
1383 |
dstPtr[2] = (v>>8) & 0xFF; |
|
1384 |
dstPtr[3] = (v) & 0xFF; |
|
1385 |
# endif /* not MSB */ |
|
1386 |
dstPtr += 4; |
|
1387 |
srcPtr += 3; |
|
1388 |
} |
|
1389 |
} |
|
1390 |
} |
|
1391 |
} |
|
194 | 1392 |
%}. |
3357 | 1393 |
] ifFalse:[ |
1394 |
"/ |
|
1395 |
"/ 8 bits/pixel ... |
|
1396 |
"/ |
|
1397 |
(usedDeviceBitsPerPixel == 8) ifTrue:[ |
|
1398 |
usedDevicePadding := 8. |
|
1399 |
imageBits := ByteArray uninitializedNew:(width * height). |
|
856 | 1400 |
|
3357 | 1401 |
"/ now, walk over the image and compose 8bit values from the r/g/b triples |
194 | 1402 |
|
856 | 1403 |
%{ |
3357 | 1404 |
if (__bothSmallInteger(_INST(height), _INST(width)) |
1405 |
&& __bothSmallInteger(rightShiftR, shiftRed) |
|
1406 |
&& __bothSmallInteger(rightShiftG, shiftGreen) |
|
1407 |
&& __bothSmallInteger(rightShiftB, shiftBlue) |
|
1408 |
&& __isByteArray(_INST(bytes)) |
|
1409 |
&& __isByteArray(imageBits)) { |
|
1410 |
int rShRed = __intVal(rightShiftR), |
|
1411 |
rShGreen = __intVal(rightShiftG), |
|
1412 |
rShBlue = __intVal(rightShiftB), |
|
1413 |
lShRed = __intVal(shiftRed), |
|
1414 |
lShGreen = __intVal(shiftGreen), |
|
1415 |
lShBlue = __intVal(shiftBlue); |
|
1416 |
int x, y, w; |
|
194 | 1417 |
|
3357 | 1418 |
unsigned char *srcPtr = __ByteArrayInstPtr(_INST(bytes))->ba_element; |
1419 |
unsigned char *dstPtr = __ByteArrayInstPtr(imageBits)->ba_element; |
|
194 | 1420 |
|
3357 | 1421 |
w = __intVal(_INST(width)); |
1422 |
if ((rShRed == 0) && (rShGreen == 0) && (rShBlue == 0)) { |
|
1423 |
for (y=__intVal(_INST(height)); y > 0; y--) { |
|
1424 |
for (x=w; x > 0; x--) { |
|
1425 |
unsigned v; |
|
194 | 1426 |
|
3357 | 1427 |
v = srcPtr[0] << lShRed; |
1428 |
v |= (srcPtr[1] << lShGreen); |
|
1429 |
v |= (srcPtr[2] << lShBlue); |
|
1430 |
dstPtr[0] = v; |
|
194 | 1431 |
|
3357 | 1432 |
dstPtr += 1; |
1433 |
srcPtr += 3; |
|
1434 |
} |
|
1435 |
} |
|
1436 |
} else { |
|
1437 |
for (y=__intVal(_INST(height)); y > 0; y--) { |
|
1438 |
for (x=w; x > 0; x--) { |
|
1439 |
unsigned r, g, b, v; |
|
194 | 1440 |
|
3357 | 1441 |
r = srcPtr[0] >> rShRed; |
1442 |
g = srcPtr[1] >> rShGreen; |
|
1443 |
b = srcPtr[2] >> rShBlue; |
|
1444 |
v = r << lShRed; |
|
1445 |
v |= (g << lShGreen); |
|
1446 |
v |= (b << lShBlue); |
|
856 | 1447 |
|
3357 | 1448 |
dstPtr[0] = v; |
856 | 1449 |
|
3357 | 1450 |
dstPtr += 1; |
1451 |
srcPtr += 3; |
|
1452 |
} |
|
1453 |
} |
|
1454 |
} |
|
1455 |
} |
|
856 | 1456 |
%}. |
3357 | 1457 |
] |
1458 |
]. |
|
1459 |
] |
|
194 | 1460 |
]. |
1461 |
||
1462 |
imageBits isNil ifTrue:[ |
|
3357 | 1463 |
'IMAGE: unimplemented trueColor depth in #rgbImageAsTrueColorFormOn: ' errorPrint. |
1464 |
usedDeviceBitsPerPixel errorPrintCR. |
|
1465 |
^ self asMonochromeFormOn:aDevice |
|
194 | 1466 |
]. |
1467 |
||
1468 |
form := Form width:width height:height depth:usedDeviceDepth on:aDevice. |
|
1469 |
form isNil ifTrue:[ |
|
3357 | 1470 |
'Depth24Image [warning]: display bitmap creation failed' errorPrintCR. |
1471 |
^ nil |
|
194 | 1472 |
]. |
1473 |
form initGC. |
|
1474 |
||
1475 |
form |
|
3357 | 1476 |
copyBitsFrom:imageBits |
1477 |
bitsPerPixel:usedDeviceBitsPerPixel |
|
1478 |
depth:usedDeviceDepth |
|
1479 |
padding:usedDevicePadding |
|
1480 |
width:width height:height |
|
1481 |
x:0 y:0 toX:0 y:0. |
|
194 | 1482 |
|
1483 |
^ form |
|
1484 |
||
3490 | 1485 |
"Modified: 21.10.1995 / 19:30:11 / cg" |
1486 |
! ! |
|
810 | 1487 |
|
1488 |
!Depth24Image methodsFor:'dither helpers'! |
|
1489 |
||
1779 | 1490 |
floydSteinbergDitheredGrayBitsDepth:depth |
1491 |
"return the bits for dithering a depth gray bitmap from the image. |
|
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1492 |
Redefined to make use of knowing that pixels are 24 bit r/g/b" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1493 |
|
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1494 |
|dstIndex "{Class: SmallInteger }" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1495 |
nextDst "{Class: SmallInteger }" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1496 |
bytesPerRow "{Class: SmallInteger }" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1497 |
bytesPerOutRow "{Class: SmallInteger }" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1498 |
outBits greyMap1 greyMap2 greyLevels |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1499 |
errorArray |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1500 |
errorArray1 |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1501 |
e t v |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1502 |
w "{Class: SmallInteger }" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1503 |
h "{Class: SmallInteger }" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1504 |
bitCnt "{Class: SmallInteger }" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1505 |
byte "{Class: SmallInteger }" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1506 |
grey dT |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1507 |
eR eRB eB eLB | |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1508 |
|
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1509 |
(samplesPerPixel ~~ 3 |
1923
cdd2c4e199df
if device is running out of allocatable colors,
Claus Gittinger <cg@exept.de>
parents:
1818
diff
changeset
|
1510 |
or:[bitsPerSample ~= #(8 8 8) |
cdd2c4e199df
if device is running out of allocatable colors,
Claus Gittinger <cg@exept.de>
parents:
1818
diff
changeset
|
1511 |
or:[depth > 8]]) ifTrue:[ |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1512 |
^ super floydSteinbergDitheredGrayBitsDepth:depth |
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1513 |
]. |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1514 |
|
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1515 |
w := width. |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1516 |
h := height. |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1517 |
|
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1518 |
bytesPerRow := self bytesPerRow. |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1519 |
bytesPerOutRow := ((w * depth) + 7) // 8. |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1520 |
outBits := ByteArray uninitializedNew:(bytesPerOutRow * h). |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1521 |
(outBits isNil or:[bytes isNil]) ifTrue:[ |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1522 |
^ nil |
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1523 |
]. |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1524 |
|
1932 | 1525 |
depth ~~ 8 ifTrue:[ |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1526 |
greyLevels := (1 bitShift:depth) - 1. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1527 |
greyMap1 := Array new:256. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1528 |
greyMap2 := Array new:256. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1529 |
1 to:256 do:[:i | |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1530 |
v := (greyLevels / 255 * (i-1)). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1531 |
greyMap1 at:i put:v. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1532 |
greyMap2 at:i put:v. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1533 |
]. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1534 |
greyMap1 := (greyMap1 collect:[:b | b truncated]) asByteArray. |
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1535 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1536 |
greyMap2 := (greyMap2 collect:[:el | |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1537 |
((el - el truncated) "/ the error (0..1) |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1538 |
* 255) rounded]) asByteArray. |
1932 | 1539 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1540 |
errorArray := ByteArray new:(w + 2) * 2. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1541 |
errorArray1 := ByteArray new:(w + 2) * 2. |
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1542 |
]. |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1543 |
|
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1544 |
%{ |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1545 |
int __byte; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1546 |
int __dT, __err, __e16, __eR, __eB, __eRB, __eLB; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1547 |
int __depth = __intVal(depth); |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1548 |
int __dstIdx = 0; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1549 |
int __srcIdx = 0; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1550 |
int __bitCnt; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1551 |
int __grey; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1552 |
int __w = __intVal(w); |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1553 |
int __h = __intVal(h); |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1554 |
int __x; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1555 |
int __y; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1556 |
int __nextDst; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1557 |
int __nextSrc; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1558 |
int __bytesPerRow = __intVal(bytesPerRow); |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1559 |
int __bytesPerOutRow = __intVal(bytesPerOutRow); |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1560 |
int __pixel; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1561 |
int __greyLevels = __intVal(greyLevels); |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1562 |
|
1812
beeaf75b245b
avoid type warnings (char * vs. unsigned char *)
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
1563 |
unsigned char *__outBits = __ByteArrayInstPtr(outBits)->ba_element; |
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1564 |
unsigned char *__bytes = __ByteArrayInstPtr(__INST(bytes))->ba_element; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1565 |
unsigned char *__greyMap1 = __ByteArrayInstPtr(greyMap1)->ba_element; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1566 |
unsigned char *__greyMap2 = __ByteArrayInstPtr(greyMap2)->ba_element; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1567 |
short *__errorArray = (short *)(__ByteArrayInstPtr(errorArray)->ba_element); |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1568 |
short *__errorArray1 = (short *)(__ByteArrayInstPtr(errorArray1)->ba_element); |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1569 |
short *__t; |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1570 |
|
1932 | 1571 |
if (__depth == 8) { |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1572 |
/* |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1573 |
* special code for destination depth 8 |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1574 |
*/ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1575 |
for (__y=0; __y<__h; __y++) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1576 |
__nextDst = __dstIdx + __bytesPerOutRow; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1577 |
__nextSrc = __srcIdx + __bytesPerRow; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1578 |
for (__x=0; __x<__w; __x++) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1579 |
__grey = (__bytes[__srcIdx] * 3) /* 0.3*r + 0.6*g + b -> 0..2550 */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1580 |
+ (__bytes[__srcIdx+1] * 6) |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1581 |
+ __bytes[__srcIdx+2]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1582 |
__pixel = __grey / 10; /* 0 .. 255 */ |
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1583 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1584 |
__srcIdx += 3; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1585 |
__outBits[__dstIdx] = __pixel; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1586 |
__dstIdx++; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1587 |
} |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1588 |
__srcIdx = __nextSrc; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1589 |
__dstIdx = __nextDst; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1590 |
} |
1932 | 1591 |
} else { |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1592 |
bzero(errorArray1, (__w+2) * 2); |
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1593 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1594 |
__bitCnt = 8; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1595 |
for (__y=0; __y<__h; __y++) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1596 |
__nextDst = __dstIdx + __bytesPerOutRow; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1597 |
__nextSrc = __srcIdx + __bytesPerRow; |
1932 | 1598 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1599 |
__byte = 0; |
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1600 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1601 |
__t = __errorArray; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1602 |
__errorArray = __errorArray1; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1603 |
__errorArray1 = __t; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1604 |
bzero(errorArray1, (__w+2) * 2); |
1932 | 1605 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1606 |
for (__x=0; __x<__w; __x++) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1607 |
__grey = (__bytes[__srcIdx] * 3) /* 0.3*r + 0.6*g + b -> 0..2550 */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1608 |
+ (__bytes[__srcIdx+1] * 6) |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1609 |
+ __bytes[__srcIdx+2]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1610 |
__grey = __grey / 10; /* 0 .. 255 */ |
1932 | 1611 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1612 |
__pixel = __greyMap1[__grey]; /* 0..(greyLevels-1) */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1613 |
__err = __greyMap2[__grey]; /* 0.. 255 - error) */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1614 |
__err += __errorArray[__x+1]; |
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1615 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1616 |
if (__err > 127) { /* dither says: next pixel */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1617 |
if ( __pixel != __greyLevels) |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1618 |
__pixel++; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1619 |
__err = __err - 255; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1620 |
} else { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1621 |
} |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1622 |
if (__err) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1623 |
__e16 = __err >> 4; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1624 |
__eR = __e16 * 7; /* 7/16 -> right pixel */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1625 |
__eRB = __e16 * 1; /* 1/16 -> right below */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1626 |
__eB = __e16 * 5; /* 5/16 -> below */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1627 |
__eLB = __err - __eR - __eRB - __eB; /* 3/16 -> left below */ |
1932 | 1628 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1629 |
__errorArray [__x+1+1] += __eR; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1630 |
__errorArray1[__x+1+1] += __eRB; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1631 |
__errorArray1[__x+1 ] += __eB; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1632 |
__errorArray1[__x+1-1] += __eLB; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1633 |
} |
1932 | 1634 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1635 |
__srcIdx += 3; |
1932 | 1636 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1637 |
__byte = (__byte << __depth) | __pixel; |
1932 | 1638 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1639 |
__bitCnt = __bitCnt - __depth; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1640 |
if (__bitCnt == 0) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1641 |
__outBits[__dstIdx] = __byte; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1642 |
__dstIdx++; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1643 |
__byte = 0; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1644 |
__bitCnt = 8; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1645 |
} |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1646 |
} |
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1647 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1648 |
if (__bitCnt != 8) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1649 |
__byte = __byte << __bitCnt; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1650 |
__outBits[__dstIdx] = __byte; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1651 |
__bitCnt = 8; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1652 |
} |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1653 |
__srcIdx = __nextSrc; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1654 |
__dstIdx = __nextDst; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1655 |
} |
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1656 |
} |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1657 |
%}. |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1658 |
|
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1659 |
^ outBits |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1660 |
|
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1661 |
"Created: 10.6.1996 / 13:28:22 / cg" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1662 |
"Modified: 10.6.1996 / 15:09:07 / cg" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1663 |
|
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1664 |
! |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1665 |
|
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1666 |
floydSteinbergDitheredMonochromeBits |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1667 |
"return the bitmap for a dithered monochrome bitmap from the image. |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1668 |
Redefined to make use of knowing that pixels are 24 bit r/g/b" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1669 |
|
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1670 |
|
1779 | 1671 |
^ self floydSteinbergDitheredGrayBitsDepth:1 |
842
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1672 |
|
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1673 |
"Created: 10.6.1996 / 22:55:59 / cg" |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1674 |
! |
dc8aa9127b49
added conversion for rgb -> greyScale using floyd-steinberg dither
Claus Gittinger <cg@exept.de>
parents:
816
diff
changeset
|
1675 |
|
1782 | 1676 |
orderedDitheredGrayBitsWithDitherMatrix:ditherMatrix ditherWidth:dW depth:depth |
810 | 1677 |
"return the bitmap for a dithered depth-bitmap from the image; |
1678 |
with a constant ditherMatrix, this can be used for thresholding. |
|
1679 |
Redefined to make use of knowing that pixels are 24-bit values." |
|
1680 |
||
1681 |
|f dH nDither v range |
|
1682 |
greyMap1 greyMap2 greyLevels outBits |
|
1683 |
bytesPerOutRow "{Class: SmallInteger }" |
|
1684 |
bytesPerRow "{Class: SmallInteger }" |
|
1685 |
w "{Class: SmallInteger }" |
|
1686 |
h "{Class: SmallInteger }"| |
|
1687 |
||
1688 |
photometric ~~ #rgb ifTrue:[ |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1689 |
self error:'invalid format'. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1690 |
^ nil |
810 | 1691 |
]. |
1692 |
||
1693 |
nDither := ditherMatrix size. |
|
1694 |
dH := nDither / dW. |
|
1695 |
||
1696 |
w := width. |
|
1697 |
h := height. |
|
1698 |
||
1699 |
greyLevels := 1 bitShift:depth. |
|
1700 |
bytesPerRow := self bytesPerRow. |
|
1701 |
||
1702 |
bytesPerOutRow := (w * depth + 7) // 8. |
|
1703 |
outBits := ByteArray uninitializedNew:(bytesPerOutRow * h). |
|
1704 |
(outBits isNil or:[bytes isNil]) ifTrue:[ |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1705 |
^ nil |
810 | 1706 |
]. |
1707 |
||
1708 |
greyMap1 := Array new:256. |
|
1709 |
greyMap2 := Array new:256. |
|
1710 |
range := greyLevels-1. |
|
1711 |
1 to:256 do:[:i | |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1712 |
v := (range / 255 * (i-1)). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1713 |
greyMap1 at:i put:v. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1714 |
greyMap2 at:i put:v. |
810 | 1715 |
]. |
1716 |
||
1717 |
greyMap1 := (greyMap1 collect:[:b | b isNil ifTrue:[ |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1718 |
0 |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1719 |
] ifFalse:[ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1720 |
b truncated |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1721 |
] |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1722 |
]) asByteArray. |
810 | 1723 |
|
1724 |
greyMap2 := (greyMap2 collect:[:el | |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1725 |
el isNil ifTrue:[ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1726 |
0 |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1727 |
] ifFalse:[ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1728 |
((el - el truncated) "/ the error (0..1) |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1729 |
* nDither) rounded |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1730 |
]]) asByteArray. |
810 | 1731 |
%{ |
1732 |
int __dW = __intVal(dW); |
|
1733 |
int __dH = __intVal(dH); |
|
1734 |
int __byte; |
|
1735 |
int __nDither = __intVal(nDither); |
|
1736 |
int __dT, __dO; |
|
1737 |
int __depth = __intVal(depth); |
|
1738 |
int __dstIdx = 0; |
|
1739 |
int __srcIdx = 0; |
|
1740 |
int __bitCnt; |
|
1741 |
int __grey; |
|
1742 |
int __w = __intVal(w); |
|
1743 |
int __h = __intVal(h); |
|
1744 |
int __x; |
|
1745 |
int __y; |
|
1746 |
int __oX, __oY, __dY; |
|
1747 |
int __nextDst; |
|
1748 |
int __nextSrc; |
|
1749 |
int __bytesPerRow = __intVal(bytesPerRow); |
|
1750 |
int __bytesPerOutRow = __intVal(bytesPerOutRow); |
|
1751 |
int __pixel; |
|
1752 |
||
1812
beeaf75b245b
avoid type warnings (char * vs. unsigned char *)
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
1753 |
unsigned char *__outBits = __ByteArrayInstPtr(outBits)->ba_element; |
810 | 1754 |
unsigned char *__ditherMatrix = __ByteArrayInstPtr(ditherMatrix)->ba_element; |
1755 |
unsigned char *__bytes = __ByteArrayInstPtr(__INST(bytes))->ba_element; |
|
1756 |
unsigned char *__greyMap1 = __ByteArrayInstPtr(greyMap1)->ba_element; |
|
1757 |
unsigned char *__greyMap2 = __ByteArrayInstPtr(greyMap2)->ba_element; |
|
1758 |
||
1759 |
__oY = __dY = 0; |
|
1760 |
for (__y=0; __y<__h; __y++) { |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1761 |
__nextDst = __dstIdx + __bytesPerOutRow; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1762 |
__nextSrc = __srcIdx + __bytesPerRow; |
810 | 1763 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1764 |
__byte = 0; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1765 |
__bitCnt = 8; |
810 | 1766 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1767 |
__oX = 0; |
810 | 1768 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1769 |
for (__x=0; __x<__w; __x++) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1770 |
__grey = (__bytes[__srcIdx] * 3) /* 0.3*r + 0.6*g + b -> 0..2550 */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1771 |
+ (__bytes[__srcIdx+1] * 6) |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1772 |
+ __bytes[__srcIdx+2]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1773 |
__grey = __grey / 10; /* 0 .. 255 */ |
810 | 1774 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1775 |
__pixel = __greyMap1[__grey]; /* 0..(greyLevels-1) */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1776 |
__dO = __greyMap2[__grey]; /* 0.. nDither-1) */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1777 |
__dT = __ditherMatrix[__dY + __oX]; |
810 | 1778 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1779 |
if (__dO > __dT) /* dither says: next pixel */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1780 |
__pixel++; |
810 | 1781 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1782 |
__srcIdx += 3; |
810 | 1783 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1784 |
__oX++; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1785 |
if (__oX == __dW) __oX = 0; |
810 | 1786 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1787 |
__byte = (__byte << __depth) | __pixel; |
810 | 1788 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1789 |
__bitCnt = __bitCnt - __depth; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1790 |
if (__bitCnt == 0) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1791 |
__outBits[__dstIdx] = __byte; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1792 |
__dstIdx++; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1793 |
__byte = 0; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1794 |
__bitCnt = 8; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1795 |
} |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1796 |
} |
810 | 1797 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1798 |
if (__bitCnt != 8) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1799 |
__byte = __byte << __bitCnt; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1800 |
__outBits[__dstIdx] = __byte; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1801 |
} |
810 | 1802 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1803 |
__oY++; __dY += __dW; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1804 |
if (__oY == __dH) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1805 |
__oY = 0; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1806 |
__dY = 0; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1807 |
} |
810 | 1808 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1809 |
__srcIdx = __nextSrc; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1810 |
__dstIdx = __nextDst; |
810 | 1811 |
} |
1812 |
%}. |
|
1813 |
||
1814 |
^ outBits |
|
1815 |
||
1816 |
" |
|
1817 |
|i| |
|
1818 |
||
1819 |
i := Image fromFile:'bitmaps/granite.tiff'. |
|
1820 |
i asOrderedDitheredMonochromeImage inspect. |
|
1821 |
i asOrderedDitheredDepth2GrayImage inspect. |
|
1822 |
i asOrderedDitheredDepth4GrayImage inspect. |
|
1823 |
i asOrderedDitheredDepth8GrayImage inspect. |
|
1824 |
" |
|
1825 |
||
1826 |
"Created: 7.6.1996 / 10:48:06 / cg" |
|
1827 |
"Modified: 7.6.1996 / 11:08:50 / cg" |
|
808 | 1828 |
! |
1829 |
||
810 | 1830 |
orderedDitheredMonochromeBitsWithDitherMatrix:ditherMatrix ditherWidth:dW |
1831 |
"return the dithered monochrome bits for the receiver image; |
|
1832 |
with a constant ditherMatrix, this can be used for thresholding. |
|
1833 |
Redefined to make use of knowing that pixels are 24-bit values." |
|
1834 |
||
1835 |
|f dH nDither |
|
1836 |
greyMap monoBits |
|
1837 |
bytesPerMonoRow "{Class: SmallInteger }" |
|
1838 |
bytesPerRow "{Class: SmallInteger }" |
|
1839 |
w "{Class: SmallInteger }" |
|
1840 |
h "{Class: SmallInteger }"| |
|
1841 |
||
1842 |
photometric ~~ #rgb ifTrue:[ |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1843 |
self error:'invalid format'. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1844 |
^ nil |
810 | 1845 |
]. |
1846 |
||
1847 |
nDither := ditherMatrix size. |
|
1848 |
dH := nDither / dW. |
|
1849 |
||
1850 |
w := width. |
|
1851 |
h := height. |
|
1852 |
||
1853 |
bytesPerRow := self bytesPerRow. |
|
1854 |
||
1855 |
bytesPerMonoRow := w + 7 // 8. |
|
1856 |
monoBits := ByteArray uninitializedNew:(bytesPerMonoRow * h). |
|
1857 |
(monoBits isNil or:[bytes isNil]) ifTrue:[ |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1858 |
^ nil |
810 | 1859 |
]. |
1860 |
||
1861 |
%{ |
|
1862 |
int __dW = __intVal(dW); |
|
1863 |
int __dH = __intVal(dH); |
|
1864 |
int __byte; |
|
1865 |
int __nDither = __intVal(nDither); |
|
1866 |
int __dT; |
|
1867 |
int __dstIdx = 0; |
|
1868 |
int __srcIdx = 0; |
|
1869 |
int __bitCnt; |
|
1870 |
int __grey; |
|
1871 |
int __w = __intVal(w); |
|
1872 |
int __h = __intVal(h); |
|
1873 |
int __x; |
|
1874 |
int __y; |
|
1875 |
int __oX, __oY, __dY; |
|
1876 |
int __nextDst; |
|
1877 |
int __nextSrc; |
|
1878 |
int __bytesPerRow = __intVal(bytesPerRow); |
|
1879 |
int __bytesPerMonoRow = __intVal(bytesPerMonoRow); |
|
1880 |
||
1812
beeaf75b245b
avoid type warnings (char * vs. unsigned char *)
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
1881 |
unsigned char *__monoBits = __ByteArrayInstPtr(monoBits)->ba_element; |
810 | 1882 |
unsigned char *__ditherMatrix = __ByteArrayInstPtr(ditherMatrix)->ba_element; |
1883 |
unsigned char *__bytes = __ByteArrayInstPtr(__INST(bytes))->ba_element; |
|
1884 |
||
1885 |
__oY = __dY = 0; |
|
1886 |
for (__y=0; __y<__h; __y++) { |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1887 |
__nextDst = __dstIdx + __bytesPerMonoRow; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1888 |
__nextSrc = __srcIdx + __bytesPerRow; |
810 | 1889 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1890 |
__byte = 0; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1891 |
__bitCnt = 8; |
810 | 1892 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1893 |
__oX = 0; |
810 | 1894 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1895 |
for (__x=0; __x<__w; __x++) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1896 |
__grey = (__bytes[__srcIdx] * 3) /* 0.3*r + 0.6*g + b -> 0..2550 */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1897 |
+ (__bytes[__srcIdx+1] * 6) |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1898 |
+ __bytes[__srcIdx+2]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1899 |
__grey = __grey * (__nDither+1) / 2550; /* 0 .. nDither+1 */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1900 |
__srcIdx += 3; |
810 | 1901 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1902 |
__dT = __ditherMatrix[__dY + __oX]; |
810 | 1903 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1904 |
__oX++; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1905 |
if (__oX == __dW) __oX = 0; |
810 | 1906 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1907 |
__byte = __byte << 1; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1908 |
if (__grey > __dT) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1909 |
__byte = __byte | 1; /* white */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1910 |
} |
810 | 1911 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1912 |
__bitCnt--; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1913 |
if (__bitCnt == 0) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1914 |
__monoBits[__dstIdx] = __byte; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1915 |
__dstIdx++; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1916 |
__byte = 0; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1917 |
__bitCnt = 8; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1918 |
} |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1919 |
} |
810 | 1920 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1921 |
if (__bitCnt != 8) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1922 |
__byte = __byte << __bitCnt; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1923 |
__monoBits[__dstIdx] = __byte; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1924 |
} |
810 | 1925 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1926 |
__oY++; __dY += __dW; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1927 |
if (__oY == __dH) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1928 |
__oY = 0; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1929 |
__dY = 0; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1930 |
} |
810 | 1931 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1932 |
__srcIdx = __nextSrc; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1933 |
__dstIdx = __nextDst; |
810 | 1934 |
} |
1935 |
%}. |
|
1936 |
||
1937 |
^ monoBits |
|
1938 |
||
1939 |
" |
|
1940 |
|i f| |
|
1941 |
||
1942 |
i := Image fromFile:'bitmaps/granite.tiff'. |
|
1943 |
f := i asOrderedDitheredMonochromeFormOn:Display. |
|
1944 |
" |
|
1945 |
||
1946 |
"Created: 7.6.1996 / 10:48:06 / cg" |
|
1947 |
"Modified: 7.6.1996 / 11:08:50 / cg" |
|
1948 |
! |
|
1949 |
||
1950 |
threshold8BitGrayBits |
|
808 | 1951 |
"return the bits for an 8-bit grey image from the receiver. |
1952 |
Special code, since this is a common case." |
|
1953 |
||
1954 |
|greyBits |
|
1955 |
srcIndex "{ Class: SmallInteger }" |
|
1956 |
dstIndex "{ Class: SmallInteger }"| |
|
1957 |
||
1958 |
greyBits := ByteArray uninitializedNew:(width * height). |
|
1959 |
%{ |
|
1960 |
register unsigned char *srcPtr, *dstPtr; |
|
1961 |
register __v; |
|
1962 |
register i; |
|
1963 |
||
1964 |
if ((__Class(__INST(bytes)) == ByteArray) |
|
1965 |
&& (__Class(greyBits) == ByteArray)) { |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1966 |
srcPtr = __ByteArrayInstPtr(__INST(bytes))->ba_element; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1967 |
dstPtr = __ByteArrayInstPtr(greyBits)->ba_element; |
808 | 1968 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1969 |
i = __intVal(__INST(height)) * __intVal(__INST(width)); |
808 | 1970 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1971 |
for (; i > 0; i--) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1972 |
__v = (srcPtr[0] * 3); /* 3*r + 6*g + b ; 0 .. 2550 */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1973 |
__v += (srcPtr[1] * 6); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1974 |
__v += srcPtr[2]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1975 |
srcPtr += 3; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1976 |
__v /= 10; /* 0..255 */ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1977 |
*dstPtr++ = __v ; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
1978 |
} |
808 | 1979 |
} |
1980 |
%}. |
|
1981 |
^ greyBits |
|
1982 |
||
1 | 1983 |
! ! |
1984 |
||
282 | 1985 |
!Depth24Image methodsFor:'enumerating'! |
1 | 1986 |
|
798 | 1987 |
colorsAtY:y from:xLow to:xHigh do:aBlock |
282 | 1988 |
"perform aBlock for each pixel from x1 to x2 in row y. |
1989 |
The block is passed the color at each pixel. |
|
1990 |
This method allows slighly faster processing of an |
|
1991 |
image than using atX:y:, since some processing can be |
|
1992 |
avoided when going from pixel to pixel. However, for |
|
1993 |
real image processing, specialized methods should be written." |
|
1 | 1994 |
|
282 | 1995 |
|srcIndex "{ Class: SmallInteger }" |
1996 |
x1 "{ Class: SmallInteger }" |
|
1997 |
x2 "{ Class: SmallInteger }" |
|
1998 |
rVal "{ Class: SmallInteger }" |
|
1999 |
gVal "{ Class: SmallInteger }" |
|
2000 |
bVal "{ Class: SmallInteger }" |
|
2001 |
lastR lastG lastB lastColor| |
|
2002 |
||
2003 |
photometric ~~ #rgb ifTrue:[ |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2004 |
^ super colorsAtY:y from:xLow to:xHigh do:aBlock. |
282 | 2005 |
]. |
2006 |
||
2007 |
x1 := xLow. |
|
2008 |
x2 := xHigh. |
|
2009 |
||
2010 |
srcIndex := 1 + (((width * y) + x1) * 3). |
|
1 | 2011 |
|
282 | 2012 |
x1 to:x2 do:[:x | |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2013 |
rVal := bytes at:(srcIndex). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2014 |
gVal := bytes at:(srcIndex + 1). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2015 |
bVal := bytes at:(srcIndex + 2). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2016 |
srcIndex := srcIndex + 3. |
798 | 2017 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2018 |
(rVal == lastR and:[gVal == lastG and:[bVal == lastB]]) ifFalse:[ |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2019 |
lastColor := Color redByte:rVal greenByte:gVal blueByte:bVal. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2020 |
lastR := rVal. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2021 |
lastG := gVal. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2022 |
lastB := bVal. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2023 |
]. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2024 |
aBlock value:x value:lastColor |
282 | 2025 |
] |
798 | 2026 |
|
2190
ac8e972bb813
oops - bad color used in enumerator.
Claus Gittinger <cg@exept.de>
parents:
2067
diff
changeset
|
2027 |
"Created: / 7.6.1996 / 19:12:28 / cg" |
ac8e972bb813
oops - bad color used in enumerator.
Claus Gittinger <cg@exept.de>
parents:
2067
diff
changeset
|
2028 |
"Modified: / 27.7.1998 / 20:03:02 / cg" |
282 | 2029 |
! |
1 | 2030 |
|
798 | 2031 |
valuesAtY:y from:xLow to:xHigh do:aBlock |
282 | 2032 |
"perform aBlock for each pixelValue from x1 to x2 in row y. |
2033 |
The block is passed the pixelValue at each pixel. |
|
2034 |
This method allows slighly faster processing of an |
|
2035 |
image than using valueAtX:y:, since some processing can be |
|
2036 |
avoided when going from pixel to pixel. However, for |
|
2037 |
real image processing, specialized methods should be written. |
|
2038 |
Notice that the pixelValue is the r/g/b value packed into an integer |
|
2039 |
(r bitShift:16) bitOr:(g bitSHift:8) bitOr:b" |
|
2040 |
||
2041 |
|srcIndex "{ Class: SmallInteger }" |
|
2042 |
x1 "{ Class: SmallInteger }" |
|
2043 |
x2 "{ Class: SmallInteger }" |
|
2044 |
r "{ Class: SmallInteger }" |
|
2045 |
g "{ Class: SmallInteger }" |
|
2046 |
b "{ Class: SmallInteger }"| |
|
2047 |
||
2048 |
x1 := xLow. |
|
2049 |
x2 := xHigh. |
|
2050 |
||
2051 |
srcIndex := 1 + (((width * y) + x1) * 3). |
|
2052 |
||
2053 |
x1 to:x2 do:[:x | |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2054 |
r := bytes at:(srcIndex). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2055 |
g := bytes at:(srcIndex + 1). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2056 |
b := bytes at:(srcIndex + 2). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2057 |
srcIndex := srcIndex + 3. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2058 |
aBlock value:x value:(((r bitShift:16) bitOr:(g bitShift:8)) bitOr:b) |
282 | 2059 |
] |
798 | 2060 |
|
2061 |
"Created: 7.6.1996 / 19:09:40 / cg" |
|
282 | 2062 |
! ! |
2063 |
||
1767 | 2064 |
!Depth24Image methodsFor:'image manipulations'! |
2065 |
||
2066 |
negative |
|
2067 |
|index newImage newBytes nBytes r g b| |
|
2068 |
||
2069 |
photometric ~~ #rgb ifTrue:[ |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2070 |
^ super negative. |
1767 | 2071 |
]. |
2072 |
newImage := self copy. |
|
2073 |
nBytes := bytes size. |
|
2074 |
newImage bits:(newBytes := ByteArray new:nBytes). |
|
2075 |
index := 1. |
|
2076 |
[index < nBytes] whileTrue:[ |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2077 |
r := bytes at:index. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2078 |
newBytes at:index put:(255-r). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2079 |
index := index + 1. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2080 |
g := bytes at:index. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2081 |
newBytes at:index put:(255-g). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2082 |
index := index + 1. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2083 |
b := bytes at:index. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2084 |
newBytes at:index put:(255-b). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2085 |
index := index + 1. |
1767 | 2086 |
]. |
2087 |
^ newImage |
|
2088 |
||
2089 |
"Modified: 23.6.1997 / 09:57:19 / cg" |
|
2090 |
! ! |
|
2091 |
||
282 | 2092 |
!Depth24Image methodsFor:'magnification'! |
1 | 2093 |
|
1738 | 2094 |
hardAntiAliasedMagnifiedBy:scalePoint |
2095 |
"return a new image magnified by scalePoint, aPoint. |
|
2096 |
This interpolates pixels and is therefore slower." |
|
2097 |
||
2098 |
|mX |
|
2099 |
mY |
|
2100 |
newWidth "{ Class: SmallInteger }" |
|
2101 |
newHeight "{ Class: SmallInteger }" |
|
2102 |
w "{ Class: SmallInteger }" |
|
2103 |
h "{ Class: SmallInteger }" |
|
2104 |
newImage newBits bitsPerPixel newBytesPerRow newMask |
|
2105 |
value |
|
2106 |
srcRow pixelArray| |
|
2107 |
||
2108 |
mX := scalePoint x. |
|
2109 |
mY := scalePoint y. |
|
2110 |
((mX < 0) or:[mY < 0]) ifTrue:[^ nil]. |
|
2111 |
((mX = 1) and:[mY = 1]) ifTrue:[^ self]. |
|
2112 |
||
2113 |
newWidth := (width * mX) truncated. |
|
2114 |
newHeight := (height * mY) truncated. |
|
2115 |
||
2116 |
bitsPerPixel := self depth. |
|
2117 |
newBytesPerRow := ((newWidth * bitsPerPixel) + 7) // 8. |
|
2118 |
newBits := ByteArray new: "uninitializedNew:" (newBytesPerRow * newHeight). |
|
2064 | 2119 |
newBits isNil ifTrue:[ |
2120 |
'Depth24Image [warning]: failed to allocate byteArray for image bits' errorPrintCR. |
|
2121 |
^ nil |
|
2122 |
]. |
|
1738 | 2123 |
|
2124 |
mask notNil ifTrue:[ |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2125 |
newMask := (mask magnifiedBy:scalePoint) |
1738 | 2126 |
]. |
2127 |
||
2128 |
newImage := self species new. |
|
2129 |
newImage |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2130 |
width:newWidth |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2131 |
height:newHeight |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2132 |
photometric:photometric |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2133 |
samplesPerPixel:samplesPerPixel |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2134 |
bitsPerSample:bitsPerSample |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2135 |
colorMap:colorMap copy |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2136 |
bits:newBits |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2137 |
mask:newMask. |
1738 | 2138 |
|
2139 |
mY := mY asFloat. |
|
2140 |
mX := mX asFloat. |
|
2141 |
||
2142 |
%{ |
|
2143 |
REGISTER unsigned char *_dstP = __ByteArrayInstPtr(newBits)->ba_element; |
|
2144 |
unsigned char *_srcP = __ByteArrayInstPtr(_INST(bytes))->ba_element; |
|
2145 |
unsigned char *_srcRowP, *sP; |
|
2146 |
int _width3 = __intVal(_INST(width)) * 3; |
|
2147 |
int _oldW = __intVal(_INST(width)) - 1; |
|
2148 |
int _oldH = __intVal(_INST(height)) - 1; |
|
2149 |
int _w = __intVal(newWidth) - 1; |
|
2150 |
int _h = __intVal(newHeight) - 1; |
|
2151 |
int _row, _col; |
|
2152 |
double _mX = __floatVal(mX); |
|
2153 |
double _mY = __floatVal(mY); |
|
2154 |
||
2155 |
for (_row = 0; _row <= _h; _row++) { |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2156 |
double _srcY; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2157 |
double _dY; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2158 |
int _sR; |
1738 | 2159 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2160 |
_srcY = ((double)_row / _mY); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2161 |
_sR = (int)_srcY; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2162 |
_dY = _srcY - ((double)_sR); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2163 |
_srcRowP = _srcP + (_width3 * _sR); |
1738 | 2164 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2165 |
for (_col = 0; _col <= _w; _col++) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2166 |
unsigned int rHere, gHere, bHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2167 |
unsigned int rRight, gRight, bRight; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2168 |
unsigned int rRightBelow, gRightBelow, bRightBelow; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2169 |
unsigned int rBelow, gBelow, bBelow; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2170 |
unsigned int _r, _g, _b; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2171 |
double wHere, wRight, wRightBelow, wBelow, sumW; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2172 |
double _srcX; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2173 |
double _dX; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2174 |
int _sC; |
1738 | 2175 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2176 |
_srcX = ((double)_col / _mX); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2177 |
_sC = (int)_srcX; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2178 |
_dX = _srcX - ((double)_sC); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2179 |
sP = _srcRowP + (_sC * 3); |
1738 | 2180 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2181 |
rHere = sP[0]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2182 |
gHere = sP[1]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2183 |
bHere = sP[2]; |
1738 | 2184 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2185 |
if (_sC < _oldW) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2186 |
rRight = sP[3]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2187 |
gRight = sP[4]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2188 |
bRight = sP[5]; |
1738 | 2189 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2190 |
if (_sR < _oldH) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2191 |
rBelow = sP[0+_width3]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2192 |
gBelow = sP[1+_width3]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2193 |
bBelow = sP[2+_width3]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2194 |
rRightBelow = sP[3+_width3]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2195 |
gRightBelow = sP[4+_width3]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2196 |
bRightBelow = sP[5+_width3]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2197 |
} else { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2198 |
rRightBelow = rHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2199 |
gRightBelow = gHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2200 |
bRightBelow = bHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2201 |
rBelow = rHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2202 |
gBelow = gHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2203 |
bBelow = bHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2204 |
} |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2205 |
} else { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2206 |
rRight = rRightBelow = rHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2207 |
gRight = gRightBelow = gHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2208 |
bRight = bRightBelow = bHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2209 |
if (_sR < _oldH) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2210 |
rBelow = sP[0+_width3]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2211 |
gBelow = sP[1+_width3]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2212 |
bBelow = sP[2+_width3]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2213 |
} else { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2214 |
rBelow = rHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2215 |
gBelow = gHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2216 |
bBelow = bHere; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2217 |
} |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2218 |
} |
1738 | 2219 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2220 |
wHere = (1.0 - _dX) * (1.0 - _dY); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2221 |
wRight = _dX * (1.0 - _dY); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2222 |
wBelow = _dY * (1.0 - _dX); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2223 |
wRightBelow = _dX * _dY; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2224 |
sumW = wHere + wRight + wBelow + wRightBelow; |
1738 | 2225 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2226 |
_r = ((rHere * wHere) + (rRight * wRight) + (rBelow * wBelow) + (rRightBelow * wRightBelow)) / sumW; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2227 |
_g = ((gHere * wHere) + (gRight * wRight) + (gBelow * wBelow) + (gRightBelow * wRightBelow)) / sumW; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2228 |
_b = ((bHere * wHere) + (bRight * wRight) + (bBelow * wBelow) + (bRightBelow * wRightBelow)) / sumW; |
1738 | 2229 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2230 |
_dstP[0] = _r; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2231 |
_dstP[1] = _g; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2232 |
_dstP[2] = _b; |
1738 | 2233 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2234 |
_dstP += 3; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2235 |
} |
1738 | 2236 |
} |
2237 |
%}. |
|
2238 |
||
2239 |
^ newImage |
|
2240 |
||
2241 |
" |
|
2242 |
|i| |
|
2243 |
i := Image fromFile:'bitmaps/gifImages/garfield.gif'. |
|
2244 |
i hardAntiAliasedMagnifiedBy:2@2 |
|
2245 |
" |
|
2246 |
" |
|
2247 |
|i| |
|
2248 |
i := Depth24Image width:3 height:3 fromArray:#[ 0 0 0 0 0 0 0 0 0 |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2249 |
0 0 0 255 255 255 0 0 0 |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2250 |
0 0 0 0 0 0 0 0 0]. |
1738 | 2251 |
i hardAntiAliasedMagnifiedBy:8@8 |
2252 |
" |
|
2253 |
||
2254 |
"Modified: 2.6.1997 / 12:28:18 / cg" |
|
2255 |
"Created: 2.6.1997 / 13:18:53 / cg" |
|
2256 |
! |
|
2257 |
||
1577 | 2258 |
hardMagnifiedBy:scalePoint |
2259 |
"return a new image magnified by scalePoint, aPoint. |
|
1 | 2260 |
This is the general magnification method, handling non-integral values" |
2261 |
||
2262 |
|mX mY |
|
2263 |
newWidth "{ Class: SmallInteger }" |
|
2264 |
newHeight "{ Class: SmallInteger }" |
|
2265 |
w "{ Class: SmallInteger }" |
|
2266 |
h "{ Class: SmallInteger }" |
|
2267 |
newImage newBytes |
|
2268 |
value "{ Class: SmallInteger }" |
|
2269 |
srcRowIdx "{ Class: SmallInteger }" |
|
2270 |
srcIndex "{ Class: SmallInteger }" |
|
1577 | 2271 |
dstIndex "{ Class: SmallInteger }" |
2272 |
newMask| |
|
1 | 2273 |
|
1577 | 2274 |
mX := scalePoint x. |
2275 |
mY := scalePoint y. |
|
1 | 2276 |
((mX < 0) or:[mY < 0]) ifTrue:[^ nil]. |
2277 |
((mX = 1) and:[mY = 1]) ifTrue:[^ self]. |
|
2278 |
||
2279 |
newWidth := (width * mX) truncated. |
|
2280 |
newHeight := (height * mY) truncated. |
|
2281 |
newBytes := ByteArray uninitializedNew:(newWidth * 3 * newHeight). |
|
2282 |
||
1577 | 2283 |
mask notNil ifTrue:[ |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2284 |
newMask := (mask magnifiedBy:scalePoint) |
1577 | 2285 |
]. |
2286 |
||
1 | 2287 |
newImage := self species new. |
886
04b88b61c640
tuned hardMagnify (there is more to tune there ...)
Claus Gittinger <cg@exept.de>
parents:
858
diff
changeset
|
2288 |
newImage |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2289 |
width:newWidth |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2290 |
height:newHeight |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2291 |
photometric:photometric |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2292 |
samplesPerPixel:samplesPerPixel |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2293 |
bitsPerSample:#(8 8 8) |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2294 |
colorMap:nil |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2295 |
bits:newBytes |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2296 |
mask:newMask. |
1 | 2297 |
|
2298 |
"walk over destination image fetching pixels from source image" |
|
2299 |
||
2300 |
mY := mY asFloat. |
|
2301 |
mX := mX asFloat. |
|
2302 |
%{ |
|
2042
58c0228331bb
single underscore-macros -> double underscores
Claus Gittinger <cg@exept.de>
parents:
1999
diff
changeset
|
2303 |
REGISTER unsigned char *_dstP = __ByteArrayInstPtr(newBytes)->ba_element; |
58c0228331bb
single underscore-macros -> double underscores
Claus Gittinger <cg@exept.de>
parents:
1999
diff
changeset
|
2304 |
unsigned char *_srcP = __ByteArrayInstPtr(_INST(bytes))->ba_element; |
1 | 2305 |
unsigned char *_srcRowP, *sP; |
2044
9ea84b4ba249
more single-underline macros
Claus Gittinger <cg@exept.de>
parents:
2042
diff
changeset
|
2306 |
int _width3 = __intVal(_INST(width)) * 3; |
9ea84b4ba249
more single-underline macros
Claus Gittinger <cg@exept.de>
parents:
2042
diff
changeset
|
2307 |
int _w = __intVal(newWidth) - 1; |
9ea84b4ba249
more single-underline macros
Claus Gittinger <cg@exept.de>
parents:
2042
diff
changeset
|
2308 |
int _h = __intVal(newHeight) - 1; |
1 | 2309 |
int _row, _col; |
2310 |
double _mX = _floatVal(mX); |
|
2311 |
double _mY = _floatVal(mY); |
|
2312 |
||
2313 |
for (_row = 0; _row <= _h; _row++) { |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2314 |
_srcRowP = _srcP + (_width3 * (int)((double)_row / _mY)); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2315 |
for (_col = 0; _col <= _w; _col++) { |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2316 |
sP = _srcRowP + (((int)((double)_col / _mX)) * 3); |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2317 |
_dstP[0] = sP[0]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2318 |
_dstP[1] = sP[1]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2319 |
_dstP[2] = sP[2]; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2320 |
_dstP += 3; |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2321 |
} |
1 | 2322 |
} |
2323 |
%} |
|
2324 |
. |
|
81 | 2325 |
" the above C-code is equivalent to: |
2326 |
||
1 | 2327 |
dstIndex := 1. |
2328 |
w := newWidth - 1. |
|
2329 |
h := newHeight - 1. |
|
2330 |
0 to:h do:[:row | |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2331 |
srcRowIdx := (width * 3 * (row // mY)) + 1. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2332 |
0 to:w do:[:col | |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2333 |
srcIndex := srcRowIdx + ((col // mX) * 3). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2334 |
value := bytes at:srcIndex. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2335 |
newBytes at:dstIndex put:value. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2336 |
value := bytes at:(srcIndex + 1). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2337 |
newBytes at:(dstIndex + 1) put:value. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2338 |
value := bytes at:(srcIndex + 2). |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2339 |
newBytes at:(dstIndex + 2) put:value. |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2340 |
dstIndex := dstIndex + 3 |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2341 |
] |
1 | 2342 |
]. |
2343 |
" |
|
2344 |
^ newImage |
|
282 | 2345 |
! |
2346 |
||
2347 |
magnifyRowFrom:srcBytes offset:srcStart |
|
3842 | 2348 |
into:dstBytes offset:dstStart factor:mX |
282 | 2349 |
|
2350 |
"magnify a single pixel row - can only magnify by integer factors" |
|
2351 |
||
2352 |
%{ |
|
2353 |
unsigned char *srcP, *dstP; |
|
2354 |
int _mag; |
|
2355 |
REGISTER int i; |
|
2356 |
REGISTER unsigned char byte1, byte2, byte3; |
|
2357 |
int _pixels; |
|
2358 |
OBJ w = _INST(width); |
|
2359 |
||
2360 |
if (__bothSmallInteger(srcStart, dstStart) |
|
2361 |
&& __bothSmallInteger(w, mX) |
|
2362 |
&& __isByteArray(srcBytes) && __isByteArray(dstBytes)) { |
|
3842 | 2363 |
_mag = __intVal(mX); |
2364 |
srcP = __ByteArrayInstPtr(srcBytes)->ba_element - 1 + __intVal(srcStart); |
|
2365 |
dstP = __ByteArrayInstPtr(dstBytes)->ba_element - 1 + __intVal(dstStart); |
|
2366 |
_pixels = __intVal(w); |
|
2367 |
||
2368 |
while (_pixels--) { |
|
2369 |
byte1 = *srcP; |
|
2370 |
byte2 = *(srcP+1); |
|
2371 |
byte3 = *(srcP+2); |
|
2372 |
srcP += 3; |
|
2373 |
for (i=_mag; i>0; i--) { |
|
2374 |
*dstP = byte1; |
|
2375 |
*(dstP+1) = byte2; |
|
2376 |
*(dstP+2) = byte3; |
|
2377 |
dstP += 3; |
|
2378 |
} |
|
2379 |
} |
|
2380 |
RETURN (self); |
|
282 | 2381 |
} |
3842 | 2382 |
%}. |
2383 |
super |
|
2384 |
magnifyRowFrom:srcBytes offset:srcStart |
|
2385 |
into:dstBytes offset:dstStart factor:mX |
|
1 | 2386 |
! ! |
282 | 2387 |
|
2388 |
!Depth24Image methodsFor:'queries'! |
|
2389 |
||
2390 |
bitsPerPixel |
|
2391 |
"return the number of bits per pixel" |
|
2392 |
||
2393 |
^ 24 |
|
2394 |
! |
|
2395 |
||
2396 |
bitsPerRow |
|
2397 |
"return the number of bits in one scanline of the image" |
|
2398 |
||
2399 |
^ width * 24 |
|
2400 |
! |
|
2401 |
||
2402 |
bitsPerSample |
|
2403 |
"return the number of bits per sample. |
|
2404 |
The return value is an array of bits-per-plane." |
|
2405 |
||
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
810
diff
changeset
|
2406 |
bitsPerSample notNil ifTrue:[^ bitsPerSample]. |
282 | 2407 |
^ #(8 8 8) |
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
810
diff
changeset
|
2408 |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
810
diff
changeset
|
2409 |
"Modified: 10.6.1996 / 18:02:33 / cg" |
282 | 2410 |
! |
2411 |
||
805 | 2412 |
blueBitsOf:pixel |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2413 |
"given a pixel-value, return the blue component as byteValue (0..255)" |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2414 |
|
805 | 2415 |
^ pixel bitAnd:16rFF. |
2416 |
||
2417 |
"Created: 8.6.1996 / 09:56:20 / cg" |
|
2418 |
! |
|
2419 |
||
2420 |
blueComponentOf:pixel |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2421 |
"given a pixel-value, return the blue component in percent (0..100)" |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2422 |
|
805 | 2423 |
^ (100.0 / 255.0) * (pixel bitAnd:16rFF) |
2424 |
||
2425 |
"Created: 8.6.1996 / 08:42:44 / cg" |
|
2426 |
"Modified: 8.6.1996 / 09:57:41 / cg" |
|
2427 |
! |
|
2428 |
||
3490 | 2429 |
blueMaskForPixelValue |
2430 |
"return the mask used with translation from pixelValues to blueBits" |
|
2431 |
||
2432 |
^ 16rFF |
|
2433 |
! |
|
2434 |
||
2435 |
blueShiftForPixelValue |
|
2436 |
"return the shift amount used with translation from pixelValues to blueBits" |
|
2437 |
||
2438 |
^ 0 |
|
2439 |
! |
|
2440 |
||
282 | 2441 |
bytesPerRow |
2442 |
"return the number of bytes in one scanline of the image" |
|
2443 |
||
2444 |
^ width * 3 |
|
2445 |
! |
|
2446 |
||
805 | 2447 |
greenBitsOf:pixel |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2448 |
"given a pixel-value, return the green component as byteValue (0..255)" |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2449 |
|
805 | 2450 |
^ (pixel bitShift:-8) bitAnd:16rFF. |
2451 |
||
2452 |
"Modified: 8.6.1996 / 08:56:28 / cg" |
|
2453 |
"Created: 8.6.1996 / 09:56:30 / cg" |
|
2454 |
! |
|
2455 |
||
2456 |
greenComponentOf:pixel |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2457 |
"given a pixel-value, return the green component in percent (0..100)" |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2458 |
|
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2459 |
^ (100.0 / 255.0) * ((pixel bitShift:-8) bitAnd:16rFF). |
805 | 2460 |
|
2461 |
"Created: 8.6.1996 / 08:42:37 / cg" |
|
2462 |
"Modified: 8.6.1996 / 09:57:32 / cg" |
|
2463 |
! |
|
2464 |
||
3490 | 2465 |
greenMaskForPixelValue |
2466 |
"return the mask used with translation from pixelValues to redBits" |
|
2467 |
||
2468 |
^ 16rFF |
|
2469 |
! |
|
2470 |
||
2471 |
greenShiftForPixelValue |
|
2472 |
"return the shift amount used with translation from pixelValues to greenBits" |
|
2473 |
||
2474 |
^ -8 |
|
2475 |
! |
|
2476 |
||
805 | 2477 |
redBitsOf:pixel |
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2478 |
"given a pixel-value, return the red component as byteValue (0..255)" |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2479 |
|
805 | 2480 |
^ (pixel bitShift:-16) bitAnd:16rFF. |
2481 |
||
2482 |
"Modified: 8.6.1996 / 08:56:31 / cg" |
|
2483 |
"Created: 8.6.1996 / 09:56:39 / cg" |
|
2484 |
! |
|
2485 |
||
2486 |
redComponentOf:pixel |
|
2301
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2487 |
"given a pixel-value, return the red component in percent (0..100)" |
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2488 |
|
60f9cf7dd066
comments; fixed #red/green/blueComponentOfPixel.
Claus Gittinger <cg@exept.de>
parents:
2190
diff
changeset
|
2489 |
^ (100.0 / 255.0) * ((pixel bitShift:-16) bitAnd:16rFF). |
805 | 2490 |
|
2491 |
"Created: 8.6.1996 / 08:42:25 / cg" |
|
2492 |
"Modified: 8.6.1996 / 09:57:23 / cg" |
|
2493 |
! |
|
2494 |
||
3490 | 2495 |
redMaskForPixelValue |
2496 |
"return the mask used with translation from pixelValues to redBits" |
|
2497 |
||
2498 |
^ 16rFF |
|
2499 |
! |
|
2500 |
||
2501 |
redShiftForPixelValue |
|
2502 |
"return the shift amount used with translation from pixelValues to redBits" |
|
2503 |
||
2504 |
^ -16 |
|
2505 |
! |
|
2506 |
||
282 | 2507 |
samplesPerPixel |
2508 |
"return the number of samples per pixel in the image." |
|
2509 |
||
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
810
diff
changeset
|
2510 |
samplesPerPixel notNil ifTrue:[^ samplesPerPixel]. |
282 | 2511 |
^ 3 |
813
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
810
diff
changeset
|
2512 |
|
8bc17dba7a02
removed obsolete comversion stuff
Claus Gittinger <cg@exept.de>
parents:
810
diff
changeset
|
2513 |
"Modified: 10.6.1996 / 18:03:09 / cg" |
3490 | 2514 |
! |
2515 |
||
2516 |
valueFromRedBits:redBits greenBits:greenBits blueBits:blueBits |
|
2517 |
^ (((redBits bitShift:8) bitOr:greenBits) bitShift:8) bitOr:blueBits |
|
282 | 2518 |
! ! |
2519 |
||
1167 | 2520 |
!Depth24Image class methodsFor:'documentation'! |
282 | 2521 |
|
2522 |
version |
|
3849
b5e6139995a2
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
2523 |
^ '$Header: /cvs/stx/stx/libview/Depth24Image.st,v 1.76 2003-04-10 23:40:32 cg Exp $' |
282 | 2524 |
! ! |