author | Claus Gittinger <cg@exept.de> |
Tue, 29 Apr 2003 20:45:23 +0200 | |
changeset 3866 | c01473a90934 |
parent 3851 | 34637f468b2a |
child 3868 | e47cf114c824 |
permissions | -rw-r--r-- |
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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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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:#Depth4Image |
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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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!Depth4Image 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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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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! |
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documentation |
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" |
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this class represents 16-color (4 bit / pixel) images. |
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Most images coming from the windows world are represented as Depth4Images. |
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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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[author:] |
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Claus Gittinger |
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[see also:] |
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Depth1Image Depth2Image Depth8Image Depth16Image Depth24Image |
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ImageReader |
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" |
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! ! |
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!Depth4Image class methodsFor:'queries'! |
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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 4" |
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^ 4 |
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"Modified: 20.4.1996 / 23:40:18 / cg" |
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! ! |
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!Depth4Image methodsFor:'accessing-pixels'! |
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pixelAtX:x y:y |
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"retrieve a pixel at x/y; return a pixelValue. |
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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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|lineIndex "{ Class: SmallInteger }" |
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byte "{ Class: SmallInteger }" | |
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lineIndex := (self bytesPerRow * y) + 1. |
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"left pixel in high bits" |
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byte := bytes at:(lineIndex + (x // 2)). |
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x even ifTrue:[ |
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^ (byte bitShift:-4) bitAnd:16rF. |
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]. |
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^ byte bitAnd:16rF. |
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|
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"Created: 24.4.1997 / 16:06:43 / cg" |
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! |
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pixelAtX:x y:y put:aPixelValue |
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"set the pixel at x/y to aPixelValue. |
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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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|lineIndex "{ Class: SmallInteger }" |
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index "{ Class: SmallInteger }" |
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byte "{ Class: SmallInteger }" | |
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lineIndex := (self bytesPerRow * y) + 1. |
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"left pixel is in high bits" |
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index := lineIndex + (x // 2). |
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byte := bytes at:index. |
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x even ifTrue:[ |
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byte := (byte bitAnd:16rF) bitOr:(aPixelValue bitShift:4) |
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] ifFalse:[ |
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byte := (byte bitAnd:16rF0) bitOr:aPixelValue |
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]. |
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bytes at:index put:byte |
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"Created: 24.4.1997 / 17:06:39 / cg" |
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! |
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rowAt:rowIndex into:aPixelBuffer |
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"fill aBuffer with pixel values retrieved from a single row. |
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Notice: rowIndex is 0-based." |
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|lineIndex "{ Class: SmallInteger }" |
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byte "{ Class: SmallInteger }" |
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w "{ Class: SmallInteger }" |
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pixel dstIdx bytes| |
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bytes := self bits. |
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dstIdx := 1. |
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w := width - 1. |
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lineIndex := (self bytesPerRow * rowIndex). |
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0 to:w do:[:x | |
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x even ifTrue:[ |
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lineIndex := lineIndex + 1. |
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byte := bytes at:lineIndex. |
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pixel := (byte bitShift:-4) bitAnd:16rF. |
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] ifFalse:[ |
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pixel := byte bitAnd:16rF. |
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]. |
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aPixelBuffer at:dstIdx put:pixel. |
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dstIdx := dstIdx + 1 |
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]. |
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"Created: 21.7.1997 / 18:04:00 / cg" |
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"Modified: 21.7.1997 / 18:05:47 / cg" |
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! ! |
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!Depth4Image methodsFor:'converting images'! |
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anyImageAsTrueColorFormOn:aDevice |
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"return a true-color device-form for receiver. |
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Supports true color devices with depths: 8, 16, 24 and 32" |
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|depth |
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colorValues |
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form imageBits bestFormat usedDeviceDepth usedDeviceBitsPerPixel |
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usedDevicePadding usedDeviceBytesPerRow padd| |
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depth := aDevice depth. |
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|
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"/ gather r/g/b values for all colors in the map ... |
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colorValues := self rgbColormapFor:aDevice. |
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bestFormat := self bestSupportedImageFormatFor:aDevice. |
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usedDeviceDepth := bestFormat at:#depth. |
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usedDeviceDepth == 1 ifTrue:[ |
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^ self asMonochromeFormOn:aDevice |
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]. |
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usedDeviceBitsPerPixel := bestFormat at:#bitsPerPixel. |
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usedDevicePadding := bestFormat at:#padding. |
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|
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usedDeviceBytesPerRow := self class bytesPerRowForWidth:width depth:usedDeviceBitsPerPixel padding:usedDevicePadding. |
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padd := usedDeviceBytesPerRow -( self class bytesPerRowForWidth:width depth:usedDeviceBitsPerPixel padding:8). |
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imageBits := ByteArray uninitializedNew:(usedDeviceBytesPerRow * height). |
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|
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"/ for now, only support some depths |
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170 |
|
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usedDeviceBitsPerPixel == 16 ifTrue:[ |
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172 |
"/ 16 bits/pixel |
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|
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"/ now, walk over the image and replace |
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175 |
"/ colorMap indices by color values in the bits array |
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176 |
|
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%{ |
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178 |
unsigned char *srcPtr = 0; |
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179 |
unsigned char *dstPtr = 0; |
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180 |
OBJ _bytes = __INST(bytes); |
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181 |
|
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182 |
if (__isByteArray(_bytes)) { |
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183 |
srcPtr = _ByteArrayInstPtr(_bytes)->ba_element; |
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184 |
} else { |
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185 |
if (__isExternalBytesLike(_bytes)) { |
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186 |
srcPtr = __externalBytesAddress(_bytes); |
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} |
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188 |
} |
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189 |
if (__isByteArray(imageBits)) { |
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190 |
dstPtr = _ByteArrayInstPtr(imageBits)->ba_element; |
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191 |
} else { |
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192 |
if (__isExternalBytesLike(imageBits)) { |
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193 |
dstPtr = __externalBytesAddress(imageBits); |
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194 |
} |
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195 |
} |
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|
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if (__bothSmallInteger(_INST(height), _INST(width)) |
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198 |
&& __isArray(colorValues) |
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199 |
&& srcPtr |
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200 |
&& dstPtr) { |
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201 |
int r,p; |
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202 |
int x, y, w, h, nPix; |
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203 |
int byte; |
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204 |
|
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205 |
OBJ *ap = __ArrayInstPtr(colorValues)->a_element; |
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|
206 |
|
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|
207 |
w = __intVal(_INST(width)); |
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|
208 |
h = __intVal(_INST(height)); |
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|
209 |
r = 0; |
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|
210 |
p = __intVal(padd); |
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|
211 |
nPix = w * h; |
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|
212 |
while (nPix-- > 0) { |
4e4b6f9b0d27
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|
213 |
unsigned idx, v; |
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|
214 |
OBJ clr; |
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|
215 |
|
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|
216 |
if (r & 1) { |
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|
217 |
idx = byte & 0xF; |
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|
218 |
} else { |
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|
219 |
byte = *srcPtr++; |
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|
220 |
idx = (byte>>4) & 0xF; |
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|
221 |
} |
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|
222 |
clr = ap[idx]; |
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|
223 |
v = __intVal(clr); |
2401 | 224 |
#ifdef __MSBFIRST |
2186
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|
225 |
((short *)dstPtr)[0] = v; |
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|
226 |
#else |
2225
8fb244eaaf90
the SWAP_BYTES macro does not work yet.
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|
227 |
# ifdef xxSWAP_BYTES |
2864
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|
228 |
SWAP_BYTES(v); |
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229 |
((short *)dstPtr)[0] = v; |
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|
230 |
# else |
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|
231 |
dstPtr[0] = (v>>8) & 0xFF; |
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|
232 |
dstPtr[1] = (v) & 0xFF; |
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|
233 |
# endif |
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|
234 |
#endif |
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|
235 |
dstPtr += 2; |
4e4b6f9b0d27
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|
236 |
|
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|
237 |
if (++r == w) { |
4e4b6f9b0d27
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|
238 |
dstPtr += p; |
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|
239 |
r = 0; |
4e4b6f9b0d27
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|
240 |
} |
4e4b6f9b0d27
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changeset
|
241 |
} |
4e4b6f9b0d27
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|
242 |
} |
4e4b6f9b0d27
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Claus Gittinger <cg@exept.de>
parents:
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|
243 |
%}. |
4e4b6f9b0d27
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
244 |
] ifFalse:[ |
4e4b6f9b0d27
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changeset
|
245 |
usedDeviceBitsPerPixel == 32 ifTrue:[ |
4e4b6f9b0d27
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|
246 |
"/ 32 bits/pixel |
4e4b6f9b0d27
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|
247 |
|
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|
248 |
"/ now, walk over the image and replace |
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|
249 |
"/ colorMap indices by color values in the bits array |
4e4b6f9b0d27
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changeset
|
250 |
|
4e4b6f9b0d27
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Claus Gittinger <cg@exept.de>
parents:
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|
251 |
%{ |
3851
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|
252 |
unsigned char *srcPtr = 0; |
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|
253 |
unsigned char *dstPtr = 0; |
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|
254 |
OBJ _bytes = __INST(bytes); |
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|
255 |
|
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
256 |
if (__isByteArray(_bytes)) { |
34637f468b2a
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diff
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|
257 |
srcPtr = _ByteArrayInstPtr(_bytes)->ba_element; |
34637f468b2a
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|
258 |
} else { |
34637f468b2a
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Claus Gittinger <cg@exept.de>
parents:
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|
259 |
if (__isExternalBytesLike(_bytes)) { |
34637f468b2a
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|
260 |
srcPtr = __externalBytesAddress(_bytes); |
34637f468b2a
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
261 |
} |
34637f468b2a
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
262 |
} |
34637f468b2a
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
263 |
if (__isByteArray(imageBits)) { |
34637f468b2a
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Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
264 |
dstPtr = _ByteArrayInstPtr(imageBits)->ba_element; |
34637f468b2a
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Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
265 |
} else { |
34637f468b2a
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
266 |
if (__isExternalBytesLike(imageBits)) { |
34637f468b2a
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Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
267 |
dstPtr = __externalBytesAddress(imageBits); |
34637f468b2a
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Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
268 |
} |
34637f468b2a
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
269 |
} |
34637f468b2a
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Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
270 |
|
2186
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diff
changeset
|
271 |
if (__bothSmallInteger(_INST(height), _INST(width)) |
4e4b6f9b0d27
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diff
changeset
|
272 |
&& __isArray(colorValues) |
3851
34637f468b2a
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|
273 |
&& srcPtr |
34637f468b2a
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
274 |
&& dstPtr) { |
2186
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Claus Gittinger <cg@exept.de>
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diff
changeset
|
275 |
int x, y, w, h, nPix; |
4e4b6f9b0d27
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
276 |
int r,p; |
4e4b6f9b0d27
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
277 |
int byte; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
278 |
|
4e4b6f9b0d27
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
279 |
OBJ *ap = __ArrayInstPtr(colorValues)->a_element; |
4e4b6f9b0d27
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
280 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
281 |
w = __intVal(_INST(width)); |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
282 |
h = __intVal(_INST(height)); |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
283 |
r = 0; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
284 |
p = __intVal(padd); |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
285 |
nPix = w * h; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
286 |
while (nPix > 0) { |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
287 |
unsigned idx, v; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
288 |
OBJ clr; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
289 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
290 |
if (r & 1) { |
2215
f7183f306690
fixed conversion to 24 & 32 displays
Claus Gittinger <cg@exept.de>
parents:
2203
diff
changeset
|
291 |
idx = byte & 0xF; |
f7183f306690
fixed conversion to 24 & 32 displays
Claus Gittinger <cg@exept.de>
parents:
2203
diff
changeset
|
292 |
} else { |
2186
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
293 |
byte = *srcPtr++; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
294 |
idx = (byte>>4) & 0xF; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
295 |
} |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
296 |
clr = ap[idx]; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
297 |
v = __intVal(clr); |
2401 | 298 |
#ifdef __MSBFIRST |
2186
4e4b6f9b0d27
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Claus Gittinger <cg@exept.de>
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diff
changeset
|
299 |
((long *)dstPtr)[0] = v; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
300 |
#else |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
301 |
dstPtr[0] = (v>>24) & 0xFF; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
302 |
dstPtr[1] = (v>>16) & 0xFF; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
303 |
dstPtr[2] = (v>>8) & 0xFF; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
304 |
dstPtr[3] = (v) & 0xFF; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
305 |
#endif |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
306 |
dstPtr += 4; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
307 |
nPix--; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
308 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
309 |
if (++r == w) { |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
310 |
dstPtr += p; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
311 |
r = 0; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
312 |
} |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
313 |
} |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
314 |
} |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
315 |
%}. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
316 |
] ifFalse:[ |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
317 |
usedDeviceBitsPerPixel == 8 ifTrue:[ |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
318 |
"/ 8 bits/pixel |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
319 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
320 |
"/ now, walk over the image and replace |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
321 |
"/ colorMap indices by color values in the bits array |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
322 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
323 |
%{ |
3851
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
324 |
unsigned char *srcPtr = 0; |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
325 |
unsigned char *dstPtr = 0; |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
326 |
OBJ _bytes = __INST(bytes); |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
327 |
|
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
328 |
if (__isByteArray(_bytes)) { |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
329 |
srcPtr = _ByteArrayInstPtr(_bytes)->ba_element; |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
330 |
} else { |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
331 |
if (__isExternalBytesLike(_bytes)) { |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
332 |
srcPtr = __externalBytesAddress(_bytes); |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
333 |
} |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
334 |
} |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
335 |
if (__isByteArray(imageBits)) { |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
336 |
dstPtr = _ByteArrayInstPtr(imageBits)->ba_element; |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
337 |
} else { |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
338 |
if (__isExternalBytesLike(imageBits)) { |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
339 |
dstPtr = __externalBytesAddress(imageBits); |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
340 |
} |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
341 |
} |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
342 |
|
2186
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
343 |
if (__bothSmallInteger(_INST(height), _INST(width)) |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
344 |
&& __isArray(colorValues) |
3851
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
345 |
&& srcPtr |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
346 |
&& dstPtr) { |
2186
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
347 |
int x, y, w, h, nPix; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
348 |
int r,p, byte; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
349 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
350 |
OBJ *ap = __ArrayInstPtr(colorValues)->a_element; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
351 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
352 |
w = __intVal(_INST(width)); |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
353 |
h = __intVal(_INST(height)); |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
354 |
r = 0; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
355 |
p = __intVal(padd); |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
356 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
357 |
nPix = w * h; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
358 |
while (nPix > 0) { |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
359 |
unsigned idx, v; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
360 |
OBJ clr; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
361 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
362 |
if (r & 1) { |
2215
f7183f306690
fixed conversion to 24 & 32 displays
Claus Gittinger <cg@exept.de>
parents:
2203
diff
changeset
|
363 |
idx = byte & 0xF; |
f7183f306690
fixed conversion to 24 & 32 displays
Claus Gittinger <cg@exept.de>
parents:
2203
diff
changeset
|
364 |
} else { |
2186
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
365 |
byte = *srcPtr++; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
366 |
idx = (byte>>4) & 0xF; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
367 |
} |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
368 |
clr = ap[idx]; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
369 |
v = __intVal(clr); |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
370 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
371 |
dstPtr[0] = v; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
372 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
373 |
dstPtr += 1; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
374 |
nPix--; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
375 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
376 |
if (++r == w) { |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
377 |
dstPtr += p; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
378 |
r = 0; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
379 |
} |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
380 |
} |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
381 |
} |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
382 |
%}. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
383 |
] ifFalse:[ |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
384 |
usedDeviceBitsPerPixel == 24 ifTrue:[ |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
385 |
"/ 24 bits/pixel |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
386 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
387 |
"/ now, walk over the image and replace |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
388 |
"/ colorMap indices by color values in the bits array |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
389 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
390 |
%{ |
3851
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
391 |
unsigned char *srcPtr = 0; |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
392 |
unsigned char *dstPtr = 0; |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
393 |
OBJ _bytes = __INST(bytes); |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
394 |
|
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
395 |
if (__isByteArray(_bytes)) { |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
396 |
srcPtr = _ByteArrayInstPtr(_bytes)->ba_element; |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
397 |
} else { |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
398 |
if (__isExternalBytesLike(_bytes)) { |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
399 |
srcPtr = __externalBytesAddress(_bytes); |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
400 |
} |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
401 |
} |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
402 |
if (__isByteArray(imageBits)) { |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
403 |
dstPtr = _ByteArrayInstPtr(imageBits)->ba_element; |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
404 |
} else { |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
405 |
if (__isExternalBytesLike(imageBits)) { |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
406 |
dstPtr = __externalBytesAddress(imageBits); |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
407 |
} |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
408 |
} |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
409 |
|
2186
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
410 |
if (__bothSmallInteger(_INST(height), _INST(width)) |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
411 |
&& __isArray(colorValues) |
3851
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
412 |
&& srcPtr |
34637f468b2a
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
3842
diff
changeset
|
413 |
&& dstPtr) { |
2186
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
414 |
int x, y, w, h, nPix; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
415 |
int r, p, byte; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
416 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
417 |
OBJ *ap = __ArrayInstPtr(colorValues)->a_element; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
418 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
419 |
w = __intVal(_INST(width)); |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
420 |
h = __intVal(_INST(height)); |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
421 |
r = 0; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
422 |
p = __intVal(padd); |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
423 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
424 |
nPix = w * h; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
425 |
while (nPix > 0) { |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
426 |
unsigned idx, v; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
427 |
OBJ clr; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
428 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
429 |
if (r & 1) { |
2215
f7183f306690
fixed conversion to 24 & 32 displays
Claus Gittinger <cg@exept.de>
parents:
2203
diff
changeset
|
430 |
idx = byte & 0xF; |
f7183f306690
fixed conversion to 24 & 32 displays
Claus Gittinger <cg@exept.de>
parents:
2203
diff
changeset
|
431 |
} else { |
2186
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
432 |
byte = *srcPtr++; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
433 |
idx = (byte>>4) & 0xF; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
434 |
} |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
435 |
clr = ap[idx]; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
436 |
v = __intVal(clr); |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
437 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
438 |
dstPtr[0] = (v>>16) & 0xFF; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
439 |
dstPtr[1] = (v>>8) & 0xFF; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
440 |
dstPtr[2] = (v) & 0xFF; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
441 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
442 |
dstPtr += 3; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
443 |
nPix--; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
444 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
445 |
if (++r == w) { |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
446 |
dstPtr += p; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
447 |
r = 0; |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
448 |
} |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
449 |
} |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
450 |
} |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
451 |
%}. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
452 |
] ifFalse:[ |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
453 |
'Image [warning]: unimplemented trueColor depth in anyImageAsTrueColorFormOn: ' errorPrint. usedDeviceBitsPerPixel errorPrintCR. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
454 |
^ nil |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
455 |
] |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
456 |
] |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
457 |
] |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
458 |
]. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
459 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
460 |
imageBits isNil ifTrue:[ |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
461 |
^ nil |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
462 |
]. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
463 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
464 |
form := Form width:width height:height depth:usedDeviceDepth on:aDevice. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
465 |
form isNil ifTrue:[^ nil]. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
466 |
form initGC. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
467 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
468 |
form |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
469 |
copyBitsFrom:imageBits |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
470 |
bitsPerPixel:usedDeviceBitsPerPixel |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
471 |
depth:usedDeviceDepth |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
472 |
padding:usedDevicePadding |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
473 |
width:width height:height |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
474 |
x:0 y:0 |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
475 |
toX:0 y:0. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
476 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
477 |
^ form |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
478 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
479 |
"Created: 20.10.1995 / 22:05:10 / cg" |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
480 |
"Modified: 21.10.1995 / 19:30:26 / cg" |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
481 |
! |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
482 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
483 |
greyImageAsTrueColorFormOn:aDevice |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
484 |
"return a true-color device-form for the grey-image receiver. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
485 |
Supports true color devices with depths: 8, 16, 24 and 32" |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
486 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
487 |
|f| |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
488 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
489 |
f := self anyImageAsTrueColorFormOn:aDevice. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
490 |
f notNil ifTrue:[^ f]. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
491 |
^ super greyImageAsTrueColorFormOn:aDevice |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
492 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
493 |
"Created: / 24.7.1998 / 01:21:28 / cg" |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
494 |
! |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
495 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
496 |
paletteImageAsTrueColorFormOn:aDevice |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
497 |
"return a true-color device-form for the palette-image receiver. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
498 |
Supports true color devices with depths: 8, 16, 24 and 32" |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
499 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
500 |
|f| |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
501 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
502 |
f := self anyImageAsTrueColorFormOn:aDevice. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
503 |
f notNil ifTrue:[^ f]. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
504 |
^ super paletteImageAsTrueColorFormOn:aDevice |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
505 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
506 |
"Created: / 24.7.1998 / 01:20:46 / cg" |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
507 |
! |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
508 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
509 |
rgbImageAsTrueColorFormOn:aDevice |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
510 |
"return a true-color device-form for the rgb-image receiver. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
511 |
Supports true color devices with depths: 8, 16, 24 and 32" |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
512 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
513 |
|f| |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
514 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
515 |
f := self anyImageAsTrueColorFormOn:aDevice. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
516 |
f notNil ifTrue:[^ f]. |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
517 |
^ super rgbImageAsTrueColorFormOn:aDevice |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
518 |
|
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
519 |
"Created: / 24.7.1998 / 01:21:57 / cg" |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
520 |
! ! |
4e4b6f9b0d27
tuned conversion to trueColor
Claus Gittinger <cg@exept.de>
parents:
2179
diff
changeset
|
521 |
|
810 | 522 |
!Depth4Image methodsFor:'dither helpers'! |
798 | 523 |
|
1782 | 524 |
orderedDitheredGrayBitsWithDitherMatrix:ditherMatrix ditherWidth:dW depth:depth |
806 | 525 |
"return the bitmap for a dithered depth-bitmap from the image; |
526 |
with a constant ditherMatrix, this can be used for thresholding. |
|
527 |
Redefined to make use of knowing that pixels are 4-bit values." |
|
528 |
||
3866
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
529 |
|dH nDither bytes |
806 | 530 |
greyLevels greyMap1 greyMap2 |
531 |
bytesPerRow "{Class: SmallInteger }" |
|
532 |
bytesPerOutRow "{Class: SmallInteger }" |
|
533 |
pixelsPerByte "{Class: SmallInteger }" |
|
534 |
outBits |
|
535 |
w "{Class: SmallInteger }" |
|
536 |
h "{Class: SmallInteger }" | |
|
537 |
||
538 |
nDither := ditherMatrix size. |
|
539 |
dH := nDither / dW. |
|
540 |
||
3866
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
541 |
bytes := self bits. |
806 | 542 |
w := width. |
543 |
h := height. |
|
544 |
||
545 |
greyLevels := 1 bitShift:depth. |
|
546 |
pixelsPerByte := 8 / depth. |
|
547 |
||
548 |
bytesPerRow := self bytesPerRow. |
|
549 |
||
550 |
bytesPerOutRow := (w * depth + 7) // 8. |
|
551 |
outBits := ByteArray uninitializedNew:(bytesPerOutRow * h). |
|
552 |
(outBits isNil or:[bytes isNil]) ifTrue:[ |
|
553 |
^ nil |
|
554 |
]. |
|
555 |
||
556 |
greyMap1 := self greyMapForRange:(greyLevels-1). "/ the pixels |
|
557 |
greyMap1 := (greyMap1 collect:[:b | b isNil ifTrue:[ |
|
558 |
0 |
|
559 |
] ifFalse:[ |
|
560 |
b truncated |
|
561 |
] |
|
562 |
]) asByteArray. |
|
563 |
||
564 |
greyMap2 := self greyMapForRange:(greyLevels-1). |
|
565 |
greyMap2 := (greyMap2 collect:[:el | |
|
566 |
el isNil ifTrue:[ |
|
567 |
0 |
|
568 |
] ifFalse:[ |
|
569 |
((el - el truncated) "/ the error (0..1) |
|
570 |
* nDither) rounded |
|
571 |
]]) asByteArray. |
|
572 |
||
573 |
%{ |
|
574 |
int __dW = __intVal(dW); |
|
575 |
int __dH = __intVal(dH); |
|
576 |
int __byte; |
|
577 |
int __dT, __dO; |
|
578 |
int __depth = __intVal(depth); |
|
579 |
int __dstIdx = 0; |
|
580 |
int __srcIdx = 0; |
|
581 |
int __bitCnt; |
|
582 |
int __inByte; |
|
583 |
int __grey, __pixel; |
|
584 |
int __w = __intVal(w); |
|
585 |
int __h = __intVal(h); |
|
586 |
int __x; |
|
587 |
int __y; |
|
588 |
int __oX, __oY, __dY; |
|
589 |
int __nextDst; |
|
590 |
int __nextSrc; |
|
591 |
int __bytesPerRow = __intVal(bytesPerRow); |
|
592 |
int __bytesPerOutRow = __intVal(bytesPerOutRow); |
|
593 |
||
1812
beeaf75b245b
avoid type warnings (char * vs. unsigned char *)
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
594 |
unsigned char *__outBits = __ByteArrayInstPtr(outBits)->ba_element; |
808 | 595 |
unsigned char *__ditherMatrix = __ByteArrayInstPtr(ditherMatrix)->ba_element; |
3866
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
596 |
unsigned char *__bytes = __ByteArrayInstPtr(bytes)->ba_element; |
806 | 597 |
unsigned char *__greyMap1 = __ByteArrayInstPtr(greyMap1)->ba_element; |
598 |
unsigned char *__greyMap2 = __ByteArrayInstPtr(greyMap2)->ba_element; |
|
599 |
||
600 |
__oY = __dY = 0; |
|
601 |
for (__y=0; __y<__h; __y++) { |
|
602 |
__nextDst = __dstIdx + __bytesPerOutRow; |
|
603 |
__nextSrc = __srcIdx + __bytesPerRow; |
|
604 |
||
605 |
__byte = 0; |
|
606 |
__bitCnt = 8; |
|
607 |
||
608 |
__oX = 0; |
|
609 |
||
610 |
for (__x=0; __x<__w; __x++) { |
|
611 |
if (__x & 1) { |
|
612 |
/* odd */ |
|
613 |
__grey = __inByte & 0xF; |
|
614 |
__srcIdx++; |
|
615 |
} else { |
|
616 |
__inByte = __bytes[__srcIdx]; |
|
617 |
__grey = (__inByte >> 4) & 0xF; |
|
618 |
} |
|
619 |
||
620 |
__pixel = __greyMap1[__grey]; /* 0..(greyLevels-1) */ |
|
621 |
__dO = __greyMap2[__grey]; /* 0.. nDither-1) */ |
|
622 |
__dT = __ditherMatrix[__dY + __oX]; |
|
623 |
||
624 |
if (__dO > __dT) /* dither says: next pixel */ |
|
625 |
__pixel++; |
|
626 |
||
627 |
__oX++; |
|
628 |
if (__oX == __dW) __oX = 0; |
|
629 |
||
630 |
__byte = (__byte << __depth) | __pixel; |
|
631 |
||
632 |
__bitCnt = __bitCnt - __depth; |
|
633 |
if (__bitCnt == 0) { |
|
634 |
__outBits[__dstIdx] = __byte; |
|
635 |
__dstIdx++; |
|
636 |
__byte = 0; |
|
637 |
__bitCnt = 8; |
|
638 |
} |
|
639 |
} |
|
640 |
||
641 |
if (__bitCnt != 8) { |
|
642 |
__byte = __byte << __bitCnt; |
|
643 |
__outBits[__dstIdx] = __byte; |
|
644 |
} |
|
645 |
||
646 |
__oY++; __dY += __dW; |
|
647 |
if (__oY == __dH) { |
|
648 |
__oY = 0; |
|
649 |
__dY = 0; |
|
650 |
} |
|
651 |
||
652 |
__srcIdx = __nextSrc; |
|
653 |
__dstIdx = __nextDst; |
|
654 |
} |
|
655 |
%}. |
|
656 |
^ outBits |
|
657 |
! |
|
658 |
||
798 | 659 |
orderedDitheredMonochromeBitsWithDitherMatrix:ditherMatrix ditherWidth:dW |
660 |
"return the dithered monochrome bits for the receiver image; |
|
661 |
with a constant ditherMatrix, this can be used for thresholding. |
|
662 |
Redefined to make use of knowing that pixels are 4-bit values." |
|
663 |
||
3866
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
664 |
|dH nDither bytes |
798 | 665 |
greyMap monoBits |
666 |
bytesPerMonoRow "{Class: SmallInteger }" |
|
667 |
bytesPerRow "{Class: SmallInteger }" |
|
668 |
w "{Class: SmallInteger }" |
|
669 |
h "{Class: SmallInteger }"| |
|
670 |
||
671 |
nDither := ditherMatrix size. |
|
672 |
dH := nDither / dW. |
|
673 |
||
674 |
w := width. |
|
675 |
h := height. |
|
3866
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
676 |
bytes := self bits. |
798 | 677 |
|
678 |
bytesPerRow := self bytesPerRow. |
|
679 |
||
680 |
bytesPerMonoRow := w + 7 // 8. |
|
681 |
monoBits := ByteArray uninitializedNew:(bytesPerMonoRow * h). |
|
682 |
(monoBits isNil or:[bytes isNil]) ifTrue:[ |
|
683 |
^ nil |
|
684 |
]. |
|
685 |
||
803
899f7eb32ef2
support #rgb - specialized code relaxed
Claus Gittinger <cg@exept.de>
parents:
798
diff
changeset
|
686 |
greyMap := self greyByteMapForRange:nDither. |
798 | 687 |
|
688 |
%{ |
|
689 |
int __dW = __intVal(dW); |
|
690 |
int __dH = __intVal(dH); |
|
691 |
int __byte; |
|
692 |
int __dT; |
|
693 |
int __dstIdx = 0; |
|
694 |
int __srcIdx = 0; |
|
695 |
int __bitCnt; |
|
696 |
int __inByte; |
|
697 |
int __grey; |
|
698 |
int __w = __intVal(w); |
|
699 |
int __h = __intVal(h); |
|
700 |
int __x; |
|
701 |
int __y; |
|
702 |
int __oX, __oY, __dY; |
|
703 |
int __nextDst; |
|
704 |
int __nextSrc; |
|
705 |
int __bytesPerRow = __intVal(bytesPerRow); |
|
706 |
int __bytesPerMonoRow = __intVal(bytesPerMonoRow); |
|
707 |
||
1812
beeaf75b245b
avoid type warnings (char * vs. unsigned char *)
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
708 |
unsigned char *__monoBits = __ByteArrayInstPtr(monoBits)->ba_element; |
808 | 709 |
unsigned char *__ditherMatrix = __ByteArrayInstPtr(ditherMatrix)->ba_element; |
3866
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
710 |
unsigned char *__bytes = __ByteArrayInstPtr(bytes)->ba_element; |
798 | 711 |
unsigned char *__greyMap = __ByteArrayInstPtr(greyMap)->ba_element; |
712 |
||
713 |
__oY = __dY = 0; |
|
714 |
for (__y=0; __y<__h; __y++) { |
|
715 |
__nextDst = __dstIdx + __bytesPerMonoRow; |
|
716 |
__nextSrc = __srcIdx + __bytesPerRow; |
|
717 |
||
718 |
__byte = 0; |
|
719 |
__bitCnt = 8; |
|
720 |
||
721 |
__oX = 0; |
|
722 |
||
723 |
for (__x=0; __x<__w; __x++) { |
|
724 |
if (__x & 1) { |
|
725 |
/* odd */ |
|
726 |
__grey = __inByte & 0xF; |
|
727 |
__srcIdx++; |
|
728 |
} else { |
|
729 |
__inByte = __bytes[__srcIdx]; /* 0..255 */ |
|
730 |
__grey = (__inByte >> 4) & 0xF; |
|
731 |
} |
|
732 |
||
733 |
__grey = __greyMap[__grey]; |
|
734 |
__dT = __ditherMatrix[__dY + __oX]; |
|
735 |
||
736 |
__oX++; |
|
737 |
if (__oX == __dW) __oX = 0; |
|
738 |
||
739 |
__byte = __byte << 1; |
|
740 |
if (__grey > __dT) { |
|
741 |
__byte = __byte | 1; /* white */ |
|
742 |
} |
|
743 |
||
744 |
__bitCnt--; |
|
745 |
if (__bitCnt == 0) { |
|
746 |
__monoBits[__dstIdx] = __byte; |
|
747 |
__dstIdx++; |
|
748 |
__byte = 0; |
|
749 |
__bitCnt = 8; |
|
750 |
} |
|
751 |
} |
|
752 |
||
753 |
if (__bitCnt != 8) { |
|
754 |
__byte = __byte << __bitCnt; |
|
755 |
__monoBits[__dstIdx] = __byte; |
|
756 |
} |
|
757 |
||
758 |
__oY++; __dY += __dW; |
|
759 |
if (__oY == __dH) { |
|
760 |
__oY = 0; |
|
761 |
__dY = 0; |
|
762 |
} |
|
763 |
||
764 |
__srcIdx = __nextSrc; |
|
765 |
__dstIdx = __nextDst; |
|
766 |
} |
|
767 |
%}. |
|
768 |
||
769 |
^ monoBits |
|
770 |
! ! |
|
771 |
||
89 | 772 |
!Depth4Image methodsFor:'enumerating'! |
81 | 773 |
|
798 | 774 |
colorsAtY:y from:xLow to:xHigh do:aBlock |
1 | 775 |
"perform aBlock for each pixel from x1 to x2 in row y. |
776 |
The block is passed the color at each pixel. |
|
777 |
This method allows slighly faster processing of an |
|
778 |
image than using atX:y:, since some processing can be |
|
779 |
avoided when going from pixel to pixel. However, for |
|
780 |
real image processing, specialized methods should be written." |
|
781 |
||
782 |
|srcIndex "{ Class: SmallInteger }" |
|
783 |
byte "{ Class: SmallInteger }" |
|
784 |
shift "{ Class: SmallInteger }" |
|
785 |
value "{ Class: SmallInteger }" |
|
786 |
x1 "{ Class: SmallInteger }" |
|
787 |
x2 "{ Class: SmallInteger }" |
|
3866
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
788 |
colorArray bytes| |
1 | 789 |
|
3866
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
790 |
bytes := self bits. |
2226 | 791 |
colorArray := ((0 to:15) collect:[:i | self colorFromValue:i]) asArray. |
1 | 792 |
|
793 |
x1 := xLow. |
|
794 |
x2 := xHigh. |
|
810 | 795 |
|
1 | 796 |
srcIndex := (self bytesPerRow * y) + 1. |
797 |
srcIndex := srcIndex + (x1 // 2). |
|
12 | 798 |
x1 even ifTrue:[ |
746 | 799 |
shift := -4 |
12 | 800 |
] ifFalse:[ |
746 | 801 |
shift := 0 |
12 | 802 |
]. |
1 | 803 |
|
2197
1b88e629091d
avoid a byte fetch in colorsAtY:from:to:do:
Claus Gittinger <cg@exept.de>
parents:
2186
diff
changeset
|
804 |
byte := bytes at:srcIndex. |
1 | 805 |
x1 to:x2 do:[:x | |
746 | 806 |
shift == 0 ifTrue:[ |
807 |
value := byte bitAnd:16rF. |
|
808 |
shift := -4. |
|
809 |
srcIndex := srcIndex + 1. |
|
810 |
] ifFalse:[ |
|
811 |
byte := bytes at:srcIndex. |
|
812 |
value := (byte bitShift:-4) bitAnd:16rF. |
|
813 |
shift := 0 |
|
814 |
]. |
|
810 | 815 |
aBlock value:x value:(colorArray at:(value + 1)). |
1 | 816 |
] |
746 | 817 |
|
2197
1b88e629091d
avoid a byte fetch in colorsAtY:from:to:do:
Claus Gittinger <cg@exept.de>
parents:
2186
diff
changeset
|
818 |
"Created: / 7.6.1996 / 19:12:33 / cg" |
1b88e629091d
avoid a byte fetch in colorsAtY:from:to:do:
Claus Gittinger <cg@exept.de>
parents:
2186
diff
changeset
|
819 |
"Modified: / 28.7.1998 / 21:26:11 / cg" |
280 | 820 |
! |
821 |
||
798 | 822 |
valuesAtY:y from:xLow to:xHigh do:aBlock |
280 | 823 |
"perform aBlock for each pixelValue from x1 to x2 in row y. |
824 |
The block is passed the pixelValue at each pixel. |
|
825 |
This method allows slighly faster processing of an |
|
826 |
image than using valueAtX:y:, since some processing can be |
|
827 |
avoided when going from pixel to pixel. However, for |
|
828 |
real image processing, specialized methods should be written." |
|
829 |
||
830 |
|srcIndex "{ Class: SmallInteger }" |
|
831 |
byte "{ Class: SmallInteger }" |
|
832 |
shift "{ Class: SmallInteger }" |
|
833 |
pixelValue "{ Class: SmallInteger }" |
|
834 |
x1 "{ Class: SmallInteger }" |
|
835 |
x2 "{ Class: SmallInteger }" |
|
3866
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
836 |
bytes| |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
837 |
|
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
838 |
bytes := self bits. |
280 | 839 |
|
840 |
x1 := xLow. |
|
841 |
x2 := xHigh. |
|
842 |
srcIndex := (self bytesPerRow * y) + 1. |
|
843 |
srcIndex := srcIndex + (x1 // 2). |
|
844 |
x1 even ifTrue:[ |
|
798 | 845 |
shift := -4 |
280 | 846 |
] ifFalse:[ |
798 | 847 |
shift := 0 |
280 | 848 |
]. |
849 |
||
850 |
x1 to:x2 do:[:x | |
|
798 | 851 |
shift == 0 ifTrue:[ |
852 |
byte := bytes at:srcIndex. |
|
853 |
pixelValue := byte bitAnd:16rF. |
|
854 |
shift := -4. |
|
855 |
srcIndex := srcIndex + 1. |
|
856 |
] ifFalse:[ |
|
857 |
byte := bytes at:srcIndex. |
|
858 |
pixelValue := (byte bitShift:-4) bitAnd:16rF. |
|
859 |
shift := 0 |
|
860 |
]. |
|
861 |
aBlock value:x value:pixelValue. |
|
280 | 862 |
] |
798 | 863 |
|
864 |
"Created: 7.6.1996 / 19:09:45 / cg" |
|
1 | 865 |
! ! |
866 |
||
867 |
!Depth4Image methodsFor:'magnification'! |
|
868 |
||
869 |
magnifyRowFrom:srcBytes offset:srcStart |
|
2179 | 870 |
into:dstBytes offset:dstStart factor:mX |
1 | 871 |
|
89 | 872 |
"magnify a single pixel row - can only magnify by integer factors. |
873 |
Specially tuned for factor 2." |
|
1 | 874 |
|
875 |
%{ |
|
876 |
unsigned char *srcP, *dstP; |
|
877 |
int _mag; |
|
878 |
REGISTER int i; |
|
879 |
REGISTER unsigned char _byte; |
|
880 |
int _pixels; |
|
881 |
REGISTER int outcnt, bits, bit; |
|
97 | 882 |
OBJ w = _INST(width); |
1 | 883 |
|
97 | 884 |
if (__bothSmallInteger(srcStart, dstStart) |
885 |
&& __bothSmallInteger(w, mX) |
|
35 | 886 |
&& __isByteArray(srcBytes) && __isByteArray(dstBytes)) { |
2179 | 887 |
_mag = __intVal(mX); |
888 |
srcP = __ByteArrayInstPtr(srcBytes)->ba_element - 1 + __intVal(srcStart); |
|
889 |
dstP = __ByteArrayInstPtr(dstBytes)->ba_element - 1 + __intVal(dstStart); |
|
890 |
_pixels = __intVal(w); |
|
1 | 891 |
|
2179 | 892 |
switch (_mag) { |
893 |
case 1: |
|
894 |
break; |
|
895 |
||
896 |
case 2: |
|
897 |
_byte = *srcP++; |
|
898 |
while (_pixels) { |
|
899 |
bit = (_byte >> 4) & 0xF; |
|
900 |
bits = (bit << 4) | bit; |
|
901 |
*dstP++ = bits; |
|
1 | 902 |
|
2179 | 903 |
if (--_pixels) { |
904 |
bit = _byte & 0xF; |
|
905 |
bits = (bit << 4) | bit; |
|
906 |
*dstP++ = bits; |
|
907 |
_byte = *srcP++; |
|
908 |
_pixels--; |
|
909 |
} |
|
910 |
} |
|
911 |
break; |
|
1 | 912 |
|
2179 | 913 |
default: |
914 |
bits = 0, outcnt = 0; |
|
915 |
_byte = *srcP++; |
|
916 |
while (_pixels) { |
|
917 |
bit = (_byte >> 4) & 0xF; |
|
1 | 918 |
|
2179 | 919 |
for (i=_mag; i>0; i--) { |
920 |
bits = (bits << 4) | bit; |
|
921 |
outcnt++; |
|
922 |
if (outcnt == 2) { |
|
923 |
*dstP++ = bits; |
|
924 |
bits = 0; |
|
925 |
outcnt = 0; |
|
926 |
} |
|
927 |
} |
|
1 | 928 |
|
2179 | 929 |
if (--_pixels) { |
930 |
bit = _byte & 0xF; |
|
931 |
for (i=_mag; i>0; i--) { |
|
932 |
bits = (bits << 4) | bit; |
|
933 |
outcnt++; |
|
934 |
if (outcnt == 2) { |
|
935 |
*dstP++ = bits; |
|
936 |
bits = 0; |
|
937 |
outcnt = 0; |
|
938 |
} |
|
939 |
} |
|
940 |
_byte = *srcP++; |
|
941 |
_pixels--; |
|
942 |
} |
|
943 |
} |
|
944 |
if (outcnt) { |
|
945 |
*dstP = bits << 4; |
|
946 |
} |
|
1 | 947 |
|
2179 | 948 |
break; |
949 |
} |
|
950 |
RETURN (self); |
|
1 | 951 |
} |
3842 | 952 |
%}. |
953 |
super |
|
954 |
magnifyRowFrom:srcBytes offset:srcStart |
|
955 |
into:dstBytes offset:dstStart factor:mX |
|
1 | 956 |
! ! |
280 | 957 |
|
958 |
!Depth4Image methodsFor:'queries'! |
|
959 |
||
960 |
bitsPerPixel |
|
961 |
"return the number of bits per pixel" |
|
962 |
||
963 |
^ 4 |
|
964 |
! |
|
965 |
||
966 |
bitsPerRow |
|
967 |
"return the number of bits in one scanline of the image" |
|
968 |
||
969 |
^ width * 4 |
|
970 |
! |
|
971 |
||
972 |
bytesPerRow |
|
973 |
"return the number of bytes in one scanline of the image" |
|
974 |
||
975 |
|nbytes| |
|
976 |
||
977 |
nbytes := width // 2. |
|
978 |
width odd ifTrue:[ |
|
979 |
^ nbytes + 1 |
|
980 |
]. |
|
981 |
^ nbytes |
|
982 |
! |
|
983 |
||
3866
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
984 |
colorFromValue:pixelValue |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
985 |
"given a pixel value, return the corresponding color. |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
986 |
Pixel values start with 0." |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
987 |
|
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
988 |
photometric == #whiteIs0 ifTrue:[ |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
989 |
^ Color gray:100 - (100 / 15 * pixelValue) |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
990 |
]. |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
991 |
photometric == #blackIs0 ifTrue:[ |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
992 |
^ Color gray:(100 / 15 * pixelValue) |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
993 |
]. |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
994 |
photometric == #palette ifTrue:[ |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
995 |
^ colorMap at:(pixelValue + 1) |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
996 |
]. |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
997 |
^ self colorFromValue:pixelValue |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
998 |
! |
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
999 |
|
280 | 1000 |
usedValues |
1001 |
"return a collection of color values used in the receiver." |
|
1002 |
||
1003 |
|useFlags usedValues| |
|
1004 |
||
1005 |
useFlags := Array new:16 withAll:false. |
|
1006 |
width even ifFalse:[ |
|
798 | 1007 |
0 to:self height - 1 do:[:y | |
1008 |
self valuesAtY:y from:0 to:self width - 1 do:[:x :pixel | |
|
1009 |
useFlags at:(pixel + 1) put:true |
|
1010 |
] |
|
1011 |
]. |
|
280 | 1012 |
] ifTrue:[ |
3866
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
1013 |
self bits usedValues do:[:byte | |
798 | 1014 |
useFlags at:(byte bitShift:-4)+1 put:true. |
1015 |
useFlags at:(byte bitAnd:2r1111)+1 put:true. |
|
1016 |
]. |
|
280 | 1017 |
]. |
2265 | 1018 |
^ (0 to:15) select:[:i | useFlags at:(i+1)]. |
798 | 1019 |
|
2265 | 1020 |
"/ usedValues := OrderedCollection new. |
1021 |
"/ 1 to:16 do:[:i | (useFlags at:i) ifTrue:[usedValues add:(i-1)]]. |
|
1022 |
"/ ^ usedValues |
|
1023 |
||
1024 |
"Modified: / 24.8.1998 / 13:56:59 / cg" |
|
280 | 1025 |
! ! |
1026 |
||
1027 |
!Depth4Image class methodsFor:'documentation'! |
|
1028 |
||
1029 |
version |
|
3866
c01473a90934
eliminated most references to bytes
Claus Gittinger <cg@exept.de>
parents:
3851
diff
changeset
|
1030 |
^ '$Header: /cvs/stx/stx/libview/Depth4Image.st,v 1.43 2003-04-29 18:44:54 cg Exp $' |
280 | 1031 |
! ! |