/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Oleg V. Khaschansky
* @version $Revision$
*
* @date: Oct 14, 2005
*/
package java.awt.image;
import java.awt.*;
import java.awt.geom.Rectangle2D;
import java.awt.geom.Point2D;
import java.util.Arrays;
import org.apache.harmony.awt.gl.AwtImageBackdoorAccessor;
import org.apache.harmony.awt.internal.nls.Messages;
public class LookupOp implements BufferedImageOp, RasterOp {
private final LookupTable lut;
private RenderingHints hints;
// TODO remove when this field is used
@SuppressWarnings("unused")
private final boolean canUseIpp;
// We don't create levels/values when it is possible to reuse old
private int cachedLevels[];
private int cachedValues[];
// Number of channels for which cache is valid.
// If negative number of channels is same as positive but skipAlpha was specified
private int validForChannels;
static int levelInitializer[] = new int[0x10000];
static {
// TODO
// System.loadLibrary("imageops");
for (int i=1; i<=0x10000; i++) {
levelInitializer[i-1] = i;
}
}
public LookupOp(LookupTable lookup, RenderingHints hints) {
if (lookup == null){
throw new NullPointerException(Messages.getString("awt.01", "lookup")); //$NON-NLS-1$ //$NON-NLS-2$
}
lut = lookup;
this.hints = hints;
canUseIpp = lut instanceof ByteLookupTable || lut instanceof ShortLookupTable;
}
public final LookupTable getTable() {
return lut;
}
public final RenderingHints getRenderingHints() {
return hints;
}
public final Point2D getPoint2D(Point2D srcPt, Point2D dstPt) {
if (dstPt == null) {
dstPt = new Point2D.Float();
}
dstPt.setLocation(srcPt);
return dstPt;
}
public final Rectangle2D getBounds2D(Raster src) {
return src.getBounds();
}
public final Rectangle2D getBounds2D(BufferedImage src) {
return getBounds2D(src.getRaster());
}
public WritableRaster createCompatibleDestRaster(Raster src) {
return src.createCompatibleWritableRaster();
}
public BufferedImage createCompatibleDestImage(BufferedImage src, ColorModel dstCM) {
if (dstCM == null) {
dstCM = src.getColorModel();
// Sync transfer type with LUT for component color model
if (dstCM instanceof ComponentColorModel) {
int transferType = dstCM.getTransferType();
if (lut instanceof ByteLookupTable) {
transferType = DataBuffer.TYPE_BYTE;
} else if (lut instanceof ShortLookupTable) {
transferType = DataBuffer.TYPE_SHORT;
}
dstCM = new ComponentColorModel(
dstCM.cs,
dstCM.hasAlpha(),
dstCM.isAlphaPremultiplied,
dstCM.transparency,
transferType
);
}
}
WritableRaster r =
dstCM.isCompatibleSampleModel(src.getSampleModel()) ?
src.getRaster().createCompatibleWritableRaster(src.getWidth(), src.getHeight()) :
dstCM.createCompatibleWritableRaster(src.getWidth(), src.getHeight());
return new BufferedImage(
dstCM,
r,
dstCM.isAlphaPremultiplied(),
null
);
}
public final WritableRaster filter(Raster src, WritableRaster dst) {
if (dst == null) {
dst = createCompatibleDestRaster(src);
} else {
if (src.getNumBands() != dst.getNumBands()) {
throw new IllegalArgumentException(Messages.getString("awt.237")); //$NON-NLS-1$ }
}
if (src.getWidth() != dst.getWidth()){
throw new IllegalArgumentException(Messages.getString("awt.28F")); //$NON-NLS-1$ }
}
if (src.getHeight() != dst.getHeight()){
throw new IllegalArgumentException(Messages.getString("awt.290")); //$NON-NLS-1$ }
}
}
if (lut.getNumComponents() != 1 && lut.getNumComponents() != src.getNumBands()) {
// awt.238=The number of arrays in the LookupTable does not meet the restrictions
throw new IllegalArgumentException(Messages.getString("awt.238")); //$NON-NLS-1$
}
// TODO
// if (!canUseIpp || ippFilter(src, dst, BufferedImage.TYPE_CUSTOM, false) != 0)
if (slowFilter(src, dst, false) != 0) {
// awt.21F=Unable to transform source
throw new ImagingOpException (Messages.getString("awt.21F")); //$NON-NLS-1$
}
return dst;
}
public final BufferedImage filter(BufferedImage src, BufferedImage dst) {
ColorModel srcCM = src.getColorModel();
if (srcCM instanceof IndexColorModel) {
// awt.220=Source should not have IndexColorModel
throw new IllegalArgumentException(Messages.getString("awt.220")); //$NON-NLS-1$
}
// Check if the number of scaling factors matches the number of bands
int nComponents = srcCM.getNumComponents();
int nLUTComponents = lut.getNumComponents();
boolean skipAlpha;
if (srcCM.hasAlpha()) {
if (nLUTComponents == 1 || nLUTComponents == nComponents-1) {
skipAlpha = true;
} else if (nLUTComponents == nComponents) {
skipAlpha = false;
} else {
// awt.229=Number of components in the LUT does not match the number of bands
throw new IllegalArgumentException(Messages.getString("awt.229")); //$NON-NLS-1$
}
} else if (nLUTComponents == 1 || nLUTComponents == nComponents) {
skipAlpha = false;
} else {
// awt.229=Number of components in the LUT does not match the number of bands
throw new IllegalArgumentException(Messages.getString("awt.229")); //$NON-NLS-1$
}
BufferedImage finalDst = null;
if (dst == null) {
finalDst = dst;
dst = createCompatibleDestImage(src, null);
} else {
if (src.getWidth() != dst.getWidth()){
throw new IllegalArgumentException(Messages.getString("awt.291")); //$NON-NLS-1$
}
if (src.getHeight() != dst.getHeight()){
throw new IllegalArgumentException(Messages.getString("awt.292")); //$NON-NLS-1$
}
if (!srcCM.equals(dst.getColorModel())) {
// Treat BufferedImage.TYPE_INT_RGB and
// BufferedImage.TYPE_INT_ARGB as same
if (!((src.getType() == BufferedImage.TYPE_INT_RGB || src
.getType() == BufferedImage.TYPE_INT_ARGB) && (dst
.getType() == BufferedImage.TYPE_INT_RGB || dst
.getType() == BufferedImage.TYPE_INT_ARGB))) {
finalDst = dst;
dst = createCompatibleDestImage(src, null);
}
}
}
// TODO
//if (!canUseIpp || ippFilter(src.getRaster(), dst.getRaster(), src.getType(), skipAlpha) != 0)
if (slowFilter(src.getRaster(), dst.getRaster(), skipAlpha) != 0) {
// awt.21F=Unable to transform source
throw new ImagingOpException (Messages.getString("awt.21F")); //$NON-NLS-1$
}
if (finalDst != null) {
Graphics2D g = finalDst.createGraphics();
g.setComposite(AlphaComposite.Src);
g.drawImage(dst, 0, 0, null);
} else {
finalDst = dst;
}
return dst;
}
private final int slowFilter(Raster src, WritableRaster dst, boolean skipAlpha) {
int minSrcX = src.getMinX();
int minDstX = dst.getMinX();
int minSrcY = src.getMinY();
int minDstY = dst.getMinY();
int skippingChannels = skipAlpha ? 1 : 0;
int numBands2Process = src.getNumBands() - skippingChannels;
int numBands = src.getNumBands();
int srcHeight = src.getHeight();
int srcWidth = src.getWidth();
int[] pixels = null;
int offset = lut.getOffset();
if (lut instanceof ByteLookupTable){
byte[][] byteData = ((ByteLookupTable)lut).getTable();
pixels = src.getPixels(minSrcX, minSrcY, srcWidth, srcHeight, pixels);
if (lut.getNumComponents() != 1){
for (int i=0; i < pixels.length; i+= numBands){
for (int b = 0; b < numBands2Process; b++){
pixels[i+b] = byteData[b][pixels[i+b]-offset] & 0xFF;
}
}
} else {
for (int i=0; i < pixels.length; i+= numBands){
for (int b = 0; b < numBands2Process; b++){
pixels[i+b] = byteData[0][pixels[i+b]-offset] & 0xFF;
}
}
}
dst.setPixels(minDstX, minDstY, srcWidth, srcHeight, pixels);
} else if (lut instanceof ShortLookupTable){
short[][] shortData = ((ShortLookupTable)lut).getTable();
pixels = src.getPixels(minSrcX, minSrcY, srcWidth, srcHeight, pixels);
if (lut.getNumComponents() != 1){
for (int i=0; i < pixels.length; i+= numBands){
for (int b = 0; b < numBands2Process; b++){
pixels[i+b] = shortData[b][pixels[i+b]-offset] & 0xFFFF;
}
}
} else {
for (int i=0; i < pixels.length; i+= numBands){
for (int b = 0; b < numBands2Process; b++){
pixels[i+b] = shortData[0][pixels[i+b]-offset] & 0xFFFF;
}
}
}
dst.setPixels(minDstX, minDstY, srcWidth, srcHeight, pixels);
} else {
int pixel[] = new int[src.getNumBands()];
int maxY = minSrcY + srcHeight;
int maxX = minSrcX + srcWidth;
for (int srcY=minSrcY, dstY = minDstY; srcY < maxY; srcY++, dstY++){
for (int srcX=minSrcX, dstX = minDstX; srcX < maxX; srcX++, dstX++){
src.getPixel(srcX, srcY, pixel);
lut.lookupPixel(pixel, pixel);
dst.setPixel(dstX, dstY, pixel);
}
}
}
return 0;
}
private final void createByteLevels(
int channels, boolean skipAlpha,
int levels[], int values[], int channelsOrder[]
) {
byte data[][] = ((ByteLookupTable)lut).getTable();
int nLevels = data[0].length;
int offset = lut.getOffset();
// Use one data array for all channels or use several data arrays
int dataIncrement = data.length > 1 ? 1 : 0;
for (int ch = 0, dataIdx = 0; ch<channels; dataIdx+=dataIncrement, ch++) {
int channelOffset = channelsOrder == null ? ch : channelsOrder[ch];
int channelBase = nLevels * channelOffset;
// Skip last channel if needed, zero values are OK -
// no changes to the channel information will be done in IPP
if ((channelOffset == channels-1 && skipAlpha) || (dataIdx >= data.length)) {
continue;
}
System.arraycopy(levelInitializer, offset, levels, channelBase, nLevels);
for (int from=0, to=channelBase; from<nLevels; from++, to++) {
values[to] = data[dataIdx][from] & 0xFF;
}
}
}
private final void createShortLevels(
int channels, boolean skipAlpha,
int levels[], int values[], int channelsOrder[]
) {
short data[][] = ((ShortLookupTable)lut).getTable();
int nLevels = data[0].length;
int offset = lut.getOffset();
// Use one data array for all channels or use several data arrays
int dataIncrement = data.length > 1 ? 1 : 0;
for (int ch = 0, dataIdx = 0; ch<channels; dataIdx+=dataIncrement, ch++) {
int channelOffset = channelsOrder == null ? ch : channelsOrder[ch];
// Skip last channel if needed, zero values are OK -
// no changes to the channel information will be done in IPP
if ((channelOffset == channels-1 && skipAlpha) || (dataIdx >= data.length)) {
continue;
}
int channelBase = nLevels * channelOffset;
System.arraycopy(levelInitializer, offset, levels, channelBase, nLevels);
for (int from=0, to=channelBase; from<nLevels; from++, to++) {
values[to] = data[dataIdx][from] & 0xFFFF;
}
}
}
// TODO remove when this method is used
@SuppressWarnings("unused")
private final int ippFilter(
Raster src, WritableRaster dst,
int imageType, boolean skipAlpha
) {
int res;
int srcStride, dstStride;
int channels;
int offsets[] = null;
int channelsOrder[] = null;
switch (imageType) {
case BufferedImage.TYPE_INT_ARGB:
case BufferedImage.TYPE_INT_ARGB_PRE:
case BufferedImage.TYPE_INT_RGB: {
channels = 4;
srcStride = src.getWidth()*4;
dstStride = dst.getWidth()*4;
channelsOrder = new int[] {2, 1, 0, 3};
break;
}
case BufferedImage.TYPE_4BYTE_ABGR:
case BufferedImage.TYPE_4BYTE_ABGR_PRE:
case BufferedImage.TYPE_INT_BGR: {
channels = 4;
srcStride = src.getWidth()*4;
dstStride = dst.getWidth()*4;
break;
}
case BufferedImage.TYPE_BYTE_GRAY: {
channels = 1;
srcStride = src.getWidth();
dstStride = dst.getWidth();
break;
}
case BufferedImage.TYPE_3BYTE_BGR: {
channels = 3;
srcStride = src.getWidth()*3;
dstStride = dst.getWidth()*3;
channelsOrder = new int[] {2, 1, 0};
break;
}
case BufferedImage.TYPE_USHORT_GRAY:
case BufferedImage.TYPE_USHORT_565_RGB:
case BufferedImage.TYPE_USHORT_555_RGB:
case BufferedImage.TYPE_BYTE_BINARY: {
return slowFilter(src, dst, skipAlpha);
}
default: {
SampleModel srcSM = src.getSampleModel();
SampleModel dstSM = dst.getSampleModel();
if (
srcSM instanceof PixelInterleavedSampleModel &&
dstSM instanceof PixelInterleavedSampleModel
) {
// Check PixelInterleavedSampleModel
if (
srcSM.getDataType() != DataBuffer.TYPE_BYTE ||
dstSM.getDataType() != DataBuffer.TYPE_BYTE
) {
return slowFilter(src, dst, skipAlpha);
}
// Have IPP functions for 1, 3 and 4 channels
channels = srcSM.getNumBands();
if (!(channels == 1 || channels == 3 || channels == 4)) {
return slowFilter(src, dst, skipAlpha);
}
srcStride = ((ComponentSampleModel) srcSM).getScanlineStride();
dstStride = ((ComponentSampleModel) dstSM).getScanlineStride();
channelsOrder = ((ComponentSampleModel) srcSM).getBandOffsets();
} else if (
srcSM instanceof SinglePixelPackedSampleModel &&
dstSM instanceof SinglePixelPackedSampleModel
) {
// Check SinglePixelPackedSampleModel
SinglePixelPackedSampleModel sppsm1 =
(SinglePixelPackedSampleModel) srcSM;
SinglePixelPackedSampleModel sppsm2 =
(SinglePixelPackedSampleModel) dstSM;
channels = sppsm1.getNumBands();
// TYPE_INT_RGB, TYPE_INT_ARGB...
if (
sppsm1.getDataType() != DataBuffer.TYPE_INT ||
sppsm2.getDataType() != DataBuffer.TYPE_INT ||
!(channels == 3 || channels == 4)
) {
return slowFilter(src, dst, skipAlpha);
}
// Check compatibility of sample models
if (
!Arrays.equals(sppsm1.getBitOffsets(), sppsm2.getBitOffsets()) ||
!Arrays.equals(sppsm1.getBitMasks(), sppsm2.getBitMasks())
) {
return slowFilter(src, dst, skipAlpha);
}
for (int i=0; i<channels; i++) {
if (sppsm1.getSampleSize(i) != 8) {
return slowFilter(src, dst, skipAlpha);
}
}
channelsOrder = new int[channels];
int bitOffsets[] = sppsm1.getBitOffsets();
for (int i=0; i<channels; i++) {
channelsOrder[i] = bitOffsets[i] / 8;
}
if (channels == 3) { // Don't skip channel now, could be optimized
channels = 4;
}
srcStride = sppsm1.getScanlineStride() * 4;
dstStride = sppsm2.getScanlineStride() * 4;
} else {
return slowFilter(src, dst, skipAlpha);
}
// Fill offsets if there's a child raster
if (src.getParent() != null || dst.getParent() != null) {
if (
src.getSampleModelTranslateX() != 0 ||
src.getSampleModelTranslateY() != 0 ||
dst.getSampleModelTranslateX() != 0 ||
dst.getSampleModelTranslateY() != 0
) {
offsets = new int[4];
offsets[0] = -src.getSampleModelTranslateX() + src.getMinX();
offsets[1] = -src.getSampleModelTranslateY() + src.getMinY();
offsets[2] = -dst.getSampleModelTranslateX() + dst.getMinX();
offsets[3] = -dst.getSampleModelTranslateY() + dst.getMinY();
}
}
}
}
int levels[] = null, values[] = null;
int channelMultiplier = skipAlpha ? -1 : 1;
if (channelMultiplier*channels == validForChannels) { // use existing levels/values
levels = cachedLevels;
values = cachedValues;
} else { // create new levels/values
if (lut instanceof ByteLookupTable) {
byte data[][] = ((ByteLookupTable)lut).getTable();
levels = new int[channels*data[0].length];
values = new int[channels*data[0].length];
createByteLevels(channels, skipAlpha, levels, values, channelsOrder);
} else if (lut instanceof ShortLookupTable) {
short data[][] = ((ShortLookupTable)lut).getTable();
levels = new int[channels*data[0].length];
values = new int[channels*data[0].length];
createShortLevels(channels, skipAlpha, levels, values, channelsOrder);
}
// cache levels/values
validForChannels = channelMultiplier*channels;
cachedLevels = levels;
cachedValues = values;
}
Object srcData, dstData;
AwtImageBackdoorAccessor dbAccess = AwtImageBackdoorAccessor.getInstance();
try {
srcData = dbAccess.getData(src.getDataBuffer());
dstData = dbAccess.getData(dst.getDataBuffer());
} catch (IllegalArgumentException e) {
return -1; // Unknown data buffer type
}
res = ippLUT(
srcData, src.getWidth(), src.getHeight(), srcStride,
dstData, dst.getWidth(), dst.getHeight(), dstStride,
levels, values,
channels, offsets,
false
);
return res;
}
final static native int ippLUT(
Object src, int srcWidth, int srcHeight, int srcStride,
Object dst, int dstWidth, int dstHeight, int dstStride,
int levels[], int values[],
int channels, int offsets[],
boolean linear
);
}