Java example source code file (LCMSTransform.java)
The LCMSTransform.java Java example source code/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
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*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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/**********************************************************************
**********************************************************************
**********************************************************************
*** COPYRIGHT (c) Eastman Kodak Company, 1997 ***
*** As an unpublished work pursuant to Title 17 of the United ***
*** States Code. All rights reserved. ***
**********************************************************************
**********************************************************************
**********************************************************************/
package sun.java2d.cmm.lcms;
import java.awt.color.ICC_Profile;
import java.awt.color.ProfileDataException;
import java.awt.color.CMMException;
import java.awt.color.ColorSpace;
import java.awt.image.BufferedImage;
import java.awt.image.Raster;
import java.awt.image.WritableRaster;
import java.awt.image.ColorModel;
import java.awt.image.DirectColorModel;
import java.awt.image.ComponentColorModel;
import java.awt.image.SampleModel;
import java.awt.image.DataBuffer;
import java.awt.image.SinglePixelPackedSampleModel;
import java.awt.image.ComponentSampleModel;
import sun.java2d.cmm.*;
import sun.java2d.cmm.lcms.*;
import static sun.java2d.cmm.lcms.LCMSImageLayout.ImageLayoutException;
public class LCMSTransform implements ColorTransform {
long ID;
private int inFormatter = 0;
private boolean isInIntPacked = false;
private int outFormatter = 0;
private boolean isOutIntPacked = false;
ICC_Profile[] profiles;
LCMSProfile[] lcmsProfiles;
int renderType;
int transformType;
private int numInComponents = -1;
private int numOutComponents = -1;
private Object disposerReferent = new Object();
/* the class initializer */
static {
if (ProfileDeferralMgr.deferring) {
ProfileDeferralMgr.activateProfiles();
}
}
public LCMSTransform(ICC_Profile profile, int renderType,
int transformType)
{
/* Actually, it is not a complete transform but just part of it */
profiles = new ICC_Profile[1];
profiles[0] = profile;
lcmsProfiles = new LCMSProfile[1];
lcmsProfiles[0] = LCMS.getProfileID(profile);
this.renderType = (renderType == ColorTransform.Any)?
ICC_Profile.icPerceptual : renderType;
this.transformType = transformType;
/* Note that ICC_Profile.getNumComponents() is quite expensive
* (it may results in a reading of the profile header).
* So, here we cache the number of components of input and
* output profiles for further usage.
*/
numInComponents = profiles[0].getNumComponents();
numOutComponents = profiles[profiles.length - 1].getNumComponents();
}
public LCMSTransform (ColorTransform[] transforms) {
int size = 0;
for (int i=0; i < transforms.length; i++) {
size+=((LCMSTransform)transforms[i]).profiles.length;
}
profiles = new ICC_Profile[size];
lcmsProfiles = new LCMSProfile[size];
int j = 0;
for (int i=0; i < transforms.length; i++) {
LCMSTransform curTrans = (LCMSTransform)transforms[i];
System.arraycopy(curTrans.profiles, 0, profiles, j,
curTrans.profiles.length);
System.arraycopy(curTrans.lcmsProfiles, 0, lcmsProfiles, j,
curTrans.lcmsProfiles.length);
j += curTrans.profiles.length;
}
renderType = ((LCMSTransform)transforms[0]).renderType;
/* Note that ICC_Profile.getNumComponents() is quite expensive
* (it may results in a reading of the profile header).
* So, here we cache the number of components of input and
* output profiles for further usage.
*/
numInComponents = profiles[0].getNumComponents();
numOutComponents = profiles[profiles.length - 1].getNumComponents();
}
public int getNumInComponents() {
return numInComponents;
}
public int getNumOutComponents() {
return numOutComponents;
}
private synchronized void doTransform(LCMSImageLayout in,
LCMSImageLayout out) {
// update native transfrom if needed
if (ID == 0L ||
inFormatter != in.pixelType || isInIntPacked != in.isIntPacked ||
outFormatter != out.pixelType || isOutIntPacked != out.isIntPacked)
{
if (ID != 0L) {
// Disposer will destroy forgotten transform
disposerReferent = new Object();
}
inFormatter = in.pixelType;
isInIntPacked = in.isIntPacked;
outFormatter = out.pixelType;
isOutIntPacked = out.isIntPacked;
ID = LCMS.createTransform(lcmsProfiles, renderType,
inFormatter, isInIntPacked,
outFormatter, isOutIntPacked,
disposerReferent);
}
LCMS.colorConvert(this, in, out);
}
public void colorConvert(BufferedImage src, BufferedImage dst) {
LCMSImageLayout srcIL, dstIL;
try {
if (!dst.getColorModel().hasAlpha()) {
dstIL = LCMSImageLayout.createImageLayout(dst);
if (dstIL != null) {
srcIL = LCMSImageLayout.createImageLayout(src);
if (srcIL != null) {
doTransform(srcIL, dstIL);
return;
}
}
}
} catch (ImageLayoutException e) {
throw new CMMException("Unable to convert images");
}
Raster srcRas = src.getRaster();
WritableRaster dstRas = dst.getRaster();
ColorModel srcCM = src.getColorModel();
ColorModel dstCM = dst.getColorModel();
int w = src.getWidth();
int h = src.getHeight();
int srcNumComp = srcCM.getNumColorComponents();
int dstNumComp = dstCM.getNumColorComponents();
int precision = 8;
float maxNum = 255.0f;
for (int i = 0; i < srcNumComp; i++) {
if (srcCM.getComponentSize(i) > 8) {
precision = 16;
maxNum = 65535.0f;
}
}
for (int i = 0; i < dstNumComp; i++) {
if (dstCM.getComponentSize(i) > 8) {
precision = 16;
maxNum = 65535.0f;
}
}
float[] srcMinVal = new float[srcNumComp];
float[] srcInvDiffMinMax = new float[srcNumComp];
ColorSpace cs = srcCM.getColorSpace();
for (int i = 0; i < srcNumComp; i++) {
srcMinVal[i] = cs.getMinValue(i);
srcInvDiffMinMax[i] = maxNum / (cs.getMaxValue(i) - srcMinVal[i]);
}
cs = dstCM.getColorSpace();
float[] dstMinVal = new float[dstNumComp];
float[] dstDiffMinMax = new float[dstNumComp];
for (int i = 0; i < dstNumComp; i++) {
dstMinVal[i] = cs.getMinValue(i);
dstDiffMinMax[i] = (cs.getMaxValue(i) - dstMinVal[i]) / maxNum;
}
boolean dstHasAlpha = dstCM.hasAlpha();
boolean needSrcAlpha = srcCM.hasAlpha() && dstHasAlpha;
float[] dstColor;
if (dstHasAlpha) {
dstColor = new float[dstNumComp + 1];
} else {
dstColor = new float[dstNumComp];
}
if (precision == 8) {
byte[] srcLine = new byte[w * srcNumComp];
byte[] dstLine = new byte[w * dstNumComp];
Object pixel;
float[] color;
float[] alpha = null;
if (needSrcAlpha) {
alpha = new float[w];
}
int idx;
// TODO check for src npixels = dst npixels
try {
srcIL = new LCMSImageLayout(
srcLine, srcLine.length/getNumInComponents(),
LCMSImageLayout.CHANNELS_SH(getNumInComponents()) |
LCMSImageLayout.BYTES_SH(1), getNumInComponents());
dstIL = new LCMSImageLayout(
dstLine, dstLine.length/getNumOutComponents(),
LCMSImageLayout.CHANNELS_SH(getNumOutComponents()) |
LCMSImageLayout.BYTES_SH(1), getNumOutComponents());
} catch (ImageLayoutException e) {
throw new CMMException("Unable to convert images");
}
// process each scanline
for (int y = 0; y < h; y++) {
// convert src scanline
pixel = null;
color = null;
idx = 0;
for (int x = 0; x < w; x++) {
pixel = srcRas.getDataElements(x, y, pixel);
color = srcCM.getNormalizedComponents(pixel, color, 0);
for (int i = 0; i < srcNumComp; i++) {
srcLine[idx++] = (byte)
((color[i] - srcMinVal[i]) * srcInvDiffMinMax[i] +
0.5f);
}
if (needSrcAlpha) {
alpha[x] = color[srcNumComp];
}
}
// color convert srcLine to dstLine
doTransform(srcIL, dstIL);
// convert dst scanline
pixel = null;
idx = 0;
for (int x = 0; x < w; x++) {
for (int i = 0; i < dstNumComp; i++) {
dstColor[i] = ((float) (dstLine[idx++] & 0xff)) *
dstDiffMinMax[i] + dstMinVal[i];
}
if (needSrcAlpha) {
dstColor[dstNumComp] = alpha[x];
} else if (dstHasAlpha) {
dstColor[dstNumComp] = 1.0f;
}
pixel = dstCM.getDataElements(dstColor, 0, pixel);
dstRas.setDataElements(x, y, pixel);
}
}
} else {
short[] srcLine = new short[w * srcNumComp];
short[] dstLine = new short[w * dstNumComp];
Object pixel;
float[] color;
float[] alpha = null;
if (needSrcAlpha) {
alpha = new float[w];
}
int idx;
try {
srcIL = new LCMSImageLayout(
srcLine, srcLine.length/getNumInComponents(),
LCMSImageLayout.CHANNELS_SH(getNumInComponents()) |
LCMSImageLayout.BYTES_SH(2), getNumInComponents()*2);
dstIL = new LCMSImageLayout(
dstLine, dstLine.length/getNumOutComponents(),
LCMSImageLayout.CHANNELS_SH(getNumOutComponents()) |
LCMSImageLayout.BYTES_SH(2), getNumOutComponents()*2);
} catch (ImageLayoutException e) {
throw new CMMException("Unable to convert images");
}
// process each scanline
for (int y = 0; y < h; y++) {
// convert src scanline
pixel = null;
color = null;
idx = 0;
for (int x = 0; x < w; x++) {
pixel = srcRas.getDataElements(x, y, pixel);
color = srcCM.getNormalizedComponents(pixel, color, 0);
for (int i = 0; i < srcNumComp; i++) {
srcLine[idx++] = (short)
((color[i] - srcMinVal[i]) * srcInvDiffMinMax[i] +
0.5f);
}
if (needSrcAlpha) {
alpha[x] = color[srcNumComp];
}
}
// color convert srcLine to dstLine
doTransform(srcIL, dstIL);
// convert dst scanline
pixel = null;
idx = 0;
for (int x = 0; x < w; x++) {
for (int i = 0; i < dstNumComp; i++) {
dstColor[i] = ((float) (dstLine[idx++] & 0xffff)) *
dstDiffMinMax[i] + dstMinVal[i];
}
if (needSrcAlpha) {
dstColor[dstNumComp] = alpha[x];
} else if (dstHasAlpha) {
dstColor[dstNumComp] = 1.0f;
}
pixel = dstCM.getDataElements(dstColor, 0, pixel);
dstRas.setDataElements(x, y, pixel);
}
}
}
}
public void colorConvert(Raster src, WritableRaster dst,
float[] srcMinVal, float[]srcMaxVal,
float[] dstMinVal, float[]dstMaxVal) {
LCMSImageLayout srcIL, dstIL;
// Can't pass src and dst directly to CMM, so process per scanline
SampleModel srcSM = src.getSampleModel();
SampleModel dstSM = dst.getSampleModel();
int srcTransferType = src.getTransferType();
int dstTransferType = dst.getTransferType();
boolean srcIsFloat, dstIsFloat;
if ((srcTransferType == DataBuffer.TYPE_FLOAT) ||
(srcTransferType == DataBuffer.TYPE_DOUBLE)) {
srcIsFloat = true;
} else {
srcIsFloat = false;
}
if ((dstTransferType == DataBuffer.TYPE_FLOAT) ||
(dstTransferType == DataBuffer.TYPE_DOUBLE)) {
dstIsFloat = true;
} else {
dstIsFloat = false;
}
int w = src.getWidth();
int h = src.getHeight();
int srcNumBands = src.getNumBands();
int dstNumBands = dst.getNumBands();
float[] srcScaleFactor = new float[srcNumBands];
float[] dstScaleFactor = new float[dstNumBands];
float[] srcUseMinVal = new float[srcNumBands];
float[] dstUseMinVal = new float[dstNumBands];
for (int i = 0; i < srcNumBands; i++) {
if (srcIsFloat) {
srcScaleFactor[i] = 65535.0f / (srcMaxVal[i] - srcMinVal[i]);
srcUseMinVal[i] = srcMinVal[i];
} else {
if (srcTransferType == DataBuffer.TYPE_SHORT) {
srcScaleFactor[i] = 65535.0f / 32767.0f;
} else {
srcScaleFactor[i] = 65535.0f /
((float) ((1 << srcSM.getSampleSize(i)) - 1));
}
srcUseMinVal[i] = 0.0f;
}
}
for (int i = 0; i < dstNumBands; i++) {
if (dstIsFloat) {
dstScaleFactor[i] = (dstMaxVal[i] - dstMinVal[i]) / 65535.0f;
dstUseMinVal[i] = dstMinVal[i];
} else {
if (dstTransferType == DataBuffer.TYPE_SHORT) {
dstScaleFactor[i] = 32767.0f / 65535.0f;
} else {
dstScaleFactor[i] =
((float) ((1 << dstSM.getSampleSize(i)) - 1)) /
65535.0f;
}
dstUseMinVal[i] = 0.0f;
}
}
int ys = src.getMinY();
int yd = dst.getMinY();
int xs, xd;
float sample;
short[] srcLine = new short[w * srcNumBands];
short[] dstLine = new short[w * dstNumBands];
int idx;
try {
srcIL = new LCMSImageLayout(
srcLine, srcLine.length/getNumInComponents(),
LCMSImageLayout.CHANNELS_SH(getNumInComponents()) |
LCMSImageLayout.BYTES_SH(2), getNumInComponents()*2);
dstIL = new LCMSImageLayout(
dstLine, dstLine.length/getNumOutComponents(),
LCMSImageLayout.CHANNELS_SH(getNumOutComponents()) |
LCMSImageLayout.BYTES_SH(2), getNumOutComponents()*2);
} catch (ImageLayoutException e) {
throw new CMMException("Unable to convert rasters");
}
// process each scanline
for (int y = 0; y < h; y++, ys++, yd++) {
// get src scanline
xs = src.getMinX();
idx = 0;
for (int x = 0; x < w; x++, xs++) {
for (int i = 0; i < srcNumBands; i++) {
sample = src.getSampleFloat(xs, ys, i);
srcLine[idx++] = (short)
((sample - srcUseMinVal[i]) * srcScaleFactor[i] + 0.5f);
}
}
// color convert srcLine to dstLine
doTransform(srcIL, dstIL);
// store dst scanline
xd = dst.getMinX();
idx = 0;
for (int x = 0; x < w; x++, xd++) {
for (int i = 0; i < dstNumBands; i++) {
sample = ((dstLine[idx++] & 0xffff) * dstScaleFactor[i]) +
dstUseMinVal[i];
dst.setSample(xd, yd, i, sample);
}
}
}
}
public void colorConvert(Raster src, WritableRaster dst) {
LCMSImageLayout srcIL, dstIL;
dstIL = LCMSImageLayout.createImageLayout(dst);
if (dstIL != null) {
srcIL = LCMSImageLayout.createImageLayout(src);
if (srcIL != null) {
doTransform(srcIL, dstIL);
return;
}
}
// Can't pass src and dst directly to CMM, so process per scanline
SampleModel srcSM = src.getSampleModel();
SampleModel dstSM = dst.getSampleModel();
int srcTransferType = src.getTransferType();
int dstTransferType = dst.getTransferType();
int w = src.getWidth();
int h = src.getHeight();
int srcNumBands = src.getNumBands();
int dstNumBands = dst.getNumBands();
int precision = 8;
float maxNum = 255.0f;
for (int i = 0; i < srcNumBands; i++) {
if (srcSM.getSampleSize(i) > 8) {
precision = 16;
maxNum = 65535.0f;
}
}
for (int i = 0; i < dstNumBands; i++) {
if (dstSM.getSampleSize(i) > 8) {
precision = 16;
maxNum = 65535.0f;
}
}
float[] srcScaleFactor = new float[srcNumBands];
float[] dstScaleFactor = new float[dstNumBands];
for (int i = 0; i < srcNumBands; i++) {
if (srcTransferType == DataBuffer.TYPE_SHORT) {
srcScaleFactor[i] = maxNum / 32767.0f;
} else {
srcScaleFactor[i] = maxNum /
((float) ((1 << srcSM.getSampleSize(i)) - 1));
}
}
for (int i = 0; i < dstNumBands; i++) {
if (dstTransferType == DataBuffer.TYPE_SHORT) {
dstScaleFactor[i] = 32767.0f / maxNum;
} else {
dstScaleFactor[i] =
((float) ((1 << dstSM.getSampleSize(i)) - 1)) / maxNum;
}
}
int ys = src.getMinY();
int yd = dst.getMinY();
int xs, xd;
int sample;
if (precision == 8) {
byte[] srcLine = new byte[w * srcNumBands];
byte[] dstLine = new byte[w * dstNumBands];
int idx;
// TODO check for src npixels = dst npixels
try {
srcIL = new LCMSImageLayout(
srcLine, srcLine.length/getNumInComponents(),
LCMSImageLayout.CHANNELS_SH(getNumInComponents()) |
LCMSImageLayout.BYTES_SH(1), getNumInComponents());
dstIL = new LCMSImageLayout(
dstLine, dstLine.length/getNumOutComponents(),
LCMSImageLayout.CHANNELS_SH(getNumOutComponents()) |
LCMSImageLayout.BYTES_SH(1), getNumOutComponents());
} catch (ImageLayoutException e) {
throw new CMMException("Unable to convert rasters");
}
// process each scanline
for (int y = 0; y < h; y++, ys++, yd++) {
// get src scanline
xs = src.getMinX();
idx = 0;
for (int x = 0; x < w; x++, xs++) {
for (int i = 0; i < srcNumBands; i++) {
sample = src.getSample(xs, ys, i);
srcLine[idx++] = (byte)
((sample * srcScaleFactor[i]) + 0.5f);
}
}
// color convert srcLine to dstLine
doTransform(srcIL, dstIL);
// store dst scanline
xd = dst.getMinX();
idx = 0;
for (int x = 0; x < w; x++, xd++) {
for (int i = 0; i < dstNumBands; i++) {
sample = (int) (((dstLine[idx++] & 0xff) *
dstScaleFactor[i]) + 0.5f);
dst.setSample(xd, yd, i, sample);
}
}
}
} else {
short[] srcLine = new short[w * srcNumBands];
short[] dstLine = new short[w * dstNumBands];
int idx;
try {
srcIL = new LCMSImageLayout(
srcLine, srcLine.length/getNumInComponents(),
LCMSImageLayout.CHANNELS_SH(getNumInComponents()) |
LCMSImageLayout.BYTES_SH(2), getNumInComponents()*2);
dstIL = new LCMSImageLayout(
dstLine, dstLine.length/getNumOutComponents(),
LCMSImageLayout.CHANNELS_SH(getNumOutComponents()) |
LCMSImageLayout.BYTES_SH(2), getNumOutComponents()*2);
} catch (ImageLayoutException e) {
throw new CMMException("Unable to convert rasters");
}
// process each scanline
for (int y = 0; y < h; y++, ys++, yd++) {
// get src scanline
xs = src.getMinX();
idx = 0;
for (int x = 0; x < w; x++, xs++) {
for (int i = 0; i < srcNumBands; i++) {
sample = src.getSample(xs, ys, i);
srcLine[idx++] = (short)
((sample * srcScaleFactor[i]) + 0.5f);
}
}
// color convert srcLine to dstLine
doTransform(srcIL, dstIL);
// store dst scanline
xd = dst.getMinX();
idx = 0;
for (int x = 0; x < w; x++, xd++) {
for (int i = 0; i < dstNumBands; i++) {
sample = (int) (((dstLine[idx++] & 0xffff) *
dstScaleFactor[i]) + 0.5f);
dst.setSample(xd, yd, i, sample);
}
}
}
}
}
/* convert an array of colors in short format */
/* each color is a contiguous set of array elements */
/* the number of colors is (size of the array) / (number of input/output
components */
public short[] colorConvert(short[] src, short[] dst) {
if (dst == null) {
dst = new short [(src.length/getNumInComponents())*getNumOutComponents()];
}
try {
LCMSImageLayout srcIL = new LCMSImageLayout(
src, src.length/getNumInComponents(),
LCMSImageLayout.CHANNELS_SH(getNumInComponents()) |
LCMSImageLayout.BYTES_SH(2), getNumInComponents()*2);
LCMSImageLayout dstIL = new LCMSImageLayout(
dst, dst.length/getNumOutComponents(),
LCMSImageLayout.CHANNELS_SH(getNumOutComponents()) |
LCMSImageLayout.BYTES_SH(2), getNumOutComponents()*2);
doTransform(srcIL, dstIL);
return dst;
} catch (ImageLayoutException e) {
throw new CMMException("Unable to convert data");
}
}
public byte[] colorConvert(byte[] src, byte[] dst) {
if (dst == null) {
dst = new byte [(src.length/getNumInComponents())*getNumOutComponents()];
}
try {
LCMSImageLayout srcIL = new LCMSImageLayout(
src, src.length/getNumInComponents(),
LCMSImageLayout.CHANNELS_SH(getNumInComponents()) |
LCMSImageLayout.BYTES_SH(1), getNumInComponents());
LCMSImageLayout dstIL = new LCMSImageLayout(
dst, dst.length/getNumOutComponents(),
LCMSImageLayout.CHANNELS_SH(getNumOutComponents()) |
LCMSImageLayout.BYTES_SH(1), getNumOutComponents());
doTransform(srcIL, dstIL);
return dst;
} catch (ImageLayoutException e) {
throw new CMMException("Unable to convert data");
}
}
}
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