/*
* $RCSfile: CopyOpImage.java,v $
*
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
*
* Use is subject to license terms.
*
* $Revision: 1.1 $
* $Date: 2005/02/11 04:56:20 $
* $State: Exp $
*/
package com.lightcrafts.media.jai.opimage;
import java.awt.Rectangle;
import java.awt.image.DataBuffer;
import java.awt.image.Raster;
import java.awt.image.RenderedImage;
import java.awt.image.WritableRaster;
import com.lightcrafts.mediax.jai.ImageLayout;
import com.lightcrafts.mediax.jai.PointOpImage;
import com.lightcrafts.mediax.jai.RasterAccessor;
import com.lightcrafts.mediax.jai.RasterFormatTag;
import java.util.Map;
// import com.lightcrafts.media.jai.test.OpImageTester;
/**
* An OpImage class that copies an image from source to dest.
*
*/
public final class CopyOpImage extends PointOpImage {
/**
* Constructs an CopyOpImage. The image dimensions are copied
* from the source image. The tile grid layout, SampleModel, and
* ColorModel may optionally be specified by an ImageLayout object.
*
* @param source a RenderedImage.
* @param layout an ImageLayout optionally containing the tile
* grid layout, SampleModel, and ColorModel, or null.
*/
public CopyOpImage(RenderedImage source,
Map config,
ImageLayout layout) {
super(source, layout, config, true);
}
/**
* Adds the pixel values of a rectangle with a given constant.
* The sources are cobbled.
*
* @param sources an array of sources, guarantee to provide all
* necessary source data for computing the rectangle.
* @param dest a tile that contains the rectangle to be computed.
* @param destRect the rectangle within this OpImage to be processed.
*/
protected void computeRect(Raster[] sources,
WritableRaster dest,
Rectangle destRect) {
// Retrieve format tags.
RasterFormatTag[] formatTags = getFormatTags();
Raster source = sources[0];
Rectangle srcRect = mapDestRect(destRect, 0);
RasterAccessor srcAccessor =
new RasterAccessor(source,srcRect,
formatTags[0],
getSourceImage(0).getColorModel());
RasterAccessor dstAccessor =
new RasterAccessor(dest,destRect,
formatTags[1], getColorModel());
if(dstAccessor.isBinary()) {
byte[] srcBits = srcAccessor.getBinaryDataArray();
byte[] dstBits = dstAccessor.getBinaryDataArray();
System.arraycopy(srcBits, 0, dstBits, 0, dstBits.length);
dstAccessor.copyBinaryDataToRaster();
} else {
switch (dstAccessor.getDataType()) {
case DataBuffer.TYPE_BYTE:
byteLoop(srcAccessor,dstAccessor);
break;
case DataBuffer.TYPE_SHORT:
case DataBuffer.TYPE_USHORT:
shortLoop(srcAccessor,dstAccessor);
break;
case DataBuffer.TYPE_INT:
intLoop(srcAccessor,dstAccessor);
break;
case DataBuffer.TYPE_FLOAT:
floatLoop(srcAccessor,dstAccessor);
break;
case DataBuffer.TYPE_DOUBLE:
doubleLoop(srcAccessor,dstAccessor);
break;
default:
String className = this.getClass().getName();
throw new RuntimeException(JaiI18N.getString("Convolve3x3OpImage1"));
}
// If the RasterAccessor object set up a temporary buffer for the
// op to write to, tell the RasterAccessor to write that data
// to the raster no that we're done with it.
if (dstAccessor.isDataCopy()) {
dstAccessor.clampDataArrays();
dstAccessor.copyDataToRaster();
}
}
}
private void byteLoop(RasterAccessor src, RasterAccessor dst) {
int dwidth = dst.getWidth();
int dheight = dst.getHeight();
int dnumBands = dst.getNumBands();
byte dstDataArrays[][] = dst.getByteDataArrays();
int dstBandOffsets[] = dst.getBandOffsets();
int dstPixelStride = dst.getPixelStride();
int dstScanlineStride = dst.getScanlineStride();
byte srcDataArrays[][] = src.getByteDataArrays();
int srcBandOffsets[] = src.getBandOffsets();
int srcPixelStride = src.getPixelStride();
int srcScanlineStride = src.getScanlineStride();
for (int k = 0; k < dnumBands; k++) {
byte dstData[] = dstDataArrays[k];
byte srcData[] = srcDataArrays[k];
int srcScanlineOffset = srcBandOffsets[k];
int dstScanlineOffset = dstBandOffsets[k];
for (int j = 0; j < dheight; j++) {
int srcPixelOffset = srcScanlineOffset;
int dstPixelOffset = dstScanlineOffset;
for (int i = 0; i < dwidth; i++) {
dstData[dstPixelOffset] = srcData[srcPixelOffset];
srcPixelOffset += srcPixelStride;
dstPixelOffset += dstPixelStride;
}
srcScanlineOffset += srcScanlineStride;
dstScanlineOffset += dstScanlineStride;
}
}
}
private void shortLoop(RasterAccessor src, RasterAccessor dst) {
int dwidth = dst.getWidth();
int dheight = dst.getHeight();
int dnumBands = dst.getNumBands();
short dstDataArrays[][] = dst.getShortDataArrays();
int dstBandOffsets[] = dst.getBandOffsets();
int dstPixelStride = dst.getPixelStride();
int dstScanlineStride = dst.getScanlineStride();
short srcDataArrays[][] = src.getShortDataArrays();
int srcBandOffsets[] = src.getBandOffsets();
int srcPixelStride = src.getPixelStride();
int srcScanlineStride = src.getScanlineStride();
for (int k = 0; k < dnumBands; k++) {
short dstData[] = dstDataArrays[k];
short srcData[] = srcDataArrays[k];
int srcScanlineOffset = srcBandOffsets[k];
int dstScanlineOffset = dstBandOffsets[k];
for (int j = 0; j < dheight; j++) {
int srcPixelOffset = srcScanlineOffset;
int dstPixelOffset = dstScanlineOffset;
for (int i = 0; i < dwidth; i++) {
dstData[dstPixelOffset] = srcData[srcPixelOffset];
srcPixelOffset += srcPixelStride;
dstPixelOffset += dstPixelStride;
}
srcScanlineOffset += srcScanlineStride;
dstScanlineOffset += dstScanlineStride;
}
}
}
// identical to byteLoops, except datatypes have changed. clumsy,
// but there's no other way in Java
private void intLoop(RasterAccessor src, RasterAccessor dst) {
int dwidth = dst.getWidth();
int dheight = dst.getHeight();
int dnumBands = dst.getNumBands();
int dstDataArrays[][] = dst.getIntDataArrays();
int dstBandOffsets[] = dst.getBandOffsets();
int dstPixelStride = dst.getPixelStride();
int dstScanlineStride = dst.getScanlineStride();
int srcDataArrays[][] = src.getIntDataArrays();
int srcBandOffsets[] = src.getBandOffsets();
int srcPixelStride = src.getPixelStride();
int srcScanlineStride = src.getScanlineStride();
for (int k = 0; k < dnumBands; k++) {
int dstData[] = dstDataArrays[k];
int srcData[] = srcDataArrays[k];
int srcScanlineOffset = srcBandOffsets[k];
int dstScanlineOffset = dstBandOffsets[k];
for (int j = 0; j < dheight; j++) {
int srcPixelOffset = srcScanlineOffset;
int dstPixelOffset = dstScanlineOffset;
for (int i = 0; i < dwidth; i++) {
dstData[dstPixelOffset] = srcData[srcPixelOffset];
srcPixelOffset += srcPixelStride;
dstPixelOffset += dstPixelStride;
}
srcScanlineOffset += srcScanlineStride;
dstScanlineOffset += dstScanlineStride;
}
}
}
private void floatLoop(RasterAccessor src, RasterAccessor dst) {
int dwidth = dst.getWidth();
int dheight = dst.getHeight();
int dnumBands = dst.getNumBands();
float dstDataArrays[][] = dst.getFloatDataArrays();
int dstBandOffsets[] = dst.getBandOffsets();
int dstPixelStride = dst.getPixelStride();
int dstScanlineStride = dst.getScanlineStride();
float srcDataArrays[][] = src.getFloatDataArrays();
int srcBandOffsets[] = src.getBandOffsets();
int srcPixelStride = src.getPixelStride();
int srcScanlineStride = src.getScanlineStride();
for (int k = 0; k < dnumBands; k++) {
float dstData[] = dstDataArrays[k];
float srcData[] = srcDataArrays[k];
int srcScanlineOffset = srcBandOffsets[k];
int dstScanlineOffset = dstBandOffsets[k];
for (int j = 0; j < dheight; j++) {
int srcPixelOffset = srcScanlineOffset;
int dstPixelOffset = dstScanlineOffset;
for (int i = 0; i < dwidth; i++) {
dstData[dstPixelOffset] = srcData[srcPixelOffset];
srcPixelOffset += srcPixelStride;
dstPixelOffset += dstPixelStride;
}
srcScanlineOffset += srcScanlineStride;
dstScanlineOffset += dstScanlineStride;
}
}
}
private void doubleLoop(RasterAccessor src, RasterAccessor dst) {
int dwidth = dst.getWidth();
int dheight = dst.getHeight();
int dnumBands = dst.getNumBands();
double dstDataArrays[][] = dst.getDoubleDataArrays();
int dstBandOffsets[] = dst.getBandOffsets();
int dstPixelStride = dst.getPixelStride();
int dstScanlineStride = dst.getScanlineStride();
double srcDataArrays[][] = src.getDoubleDataArrays();
int srcBandOffsets[] = src.getBandOffsets();
int srcPixelStride = src.getPixelStride();
int srcScanlineStride = src.getScanlineStride();
for (int k = 0; k < dnumBands; k++) {
double dstData[] = dstDataArrays[k];
double srcData[] = srcDataArrays[k];
int srcScanlineOffset = srcBandOffsets[k];
int dstScanlineOffset = dstBandOffsets[k];
for (int j = 0; j < dheight; j++) {
int srcPixelOffset = srcScanlineOffset;
int dstPixelOffset = dstScanlineOffset;
for (int i = 0; i < dwidth; i++) {
dstData[dstPixelOffset] = srcData[srcPixelOffset];
srcPixelOffset += srcPixelStride;
dstPixelOffset += dstPixelStride;
}
srcScanlineOffset += srcScanlineStride;
dstScanlineOffset += dstScanlineStride;
}
}
}
// public static OpImage createTestImage(OpImageTester oit) {
// return new CopyOpImage(oit.getSource(), null,
// new ImageLayout(oit.getSource()));
// }
// // Calls a method on OpImage that uses introspection, to make this
// // class, discover it's createTestImage() call, call it and then
// // benchmark the performance of the created OpImage chain.
// public static void main(String args[]) {
// String classname = "com.lightcrafts.media.jai.opimage.CopyOpImage";
// OpImageTester.performDiagnostics(classname,args);
// }
}