private Raster readSubsampledRaster(WritableRaster raster) throws IOException {
if (raster == null)
raster =
Raster.createWritableRaster(
sampleModel.createCompatibleSampleModel(
destinationRegion.x + destinationRegion.width,
destinationRegion.y + destinationRegion.height),
new Point(destinationRegion.x, destinationRegion.y));
int numBands = sourceBands.length;
int dataType = sampleModel.getDataType();
int sampleSizeBit = DataBuffer.getDataTypeSize(dataType);
int sampleSizeByte = (sampleSizeBit + 7) / 8;
Rectangle destRect = raster.getBounds().intersection(destinationRegion);
int offx = destinationRegion.x;
int offy = destinationRegion.y;
int sourceSX = (destRect.x - offx) * scaleX + sourceOrigin.x;
int sourceSY = (destRect.y - offy) * scaleY + sourceOrigin.y;
int sourceEX = (destRect.width - 1) * scaleX + sourceSX;
int sourceEY = (destRect.height - 1) * scaleY + sourceSY;
int startXTile = sourceSX / tileWidth;
int startYTile = sourceSY / tileHeight;
int endXTile = sourceEX / tileWidth;
int endYTile = sourceEY / tileHeight;
startXTile = clip(startXTile, 0, maxXTile);
startYTile = clip(startYTile, 0, maxYTile);
endXTile = clip(endXTile, 0, maxXTile);
endYTile = clip(endYTile, 0, maxYTile);
int totalXTiles = getNumXTiles();
int totalYTiles = getNumYTiles();
int totalTiles = totalXTiles * totalYTiles;
// The line buffer for the source
byte[] pixbuf = null; // byte buffer for the decoded pixels.
short[] spixbuf = null; // byte buffer for the decoded pixels.
int[] ipixbuf = null; // byte buffer for the decoded pixels.
float[] fpixbuf = null; // byte buffer for the decoded pixels.
double[] dpixbuf = null; // byte buffer for the decoded pixels.
// A flag to show the ComponentSampleModel has a single data bank
boolean singleBank = true;
int pixelStride = 0;
int scanlineStride = 0;
int bandStride = 0;
int[] bandOffsets = null;
int[] bankIndices = null;
if (originalSampleModel instanceof ComponentSampleModel) {
ComponentSampleModel csm = (ComponentSampleModel) originalSampleModel;
bankIndices = csm.getBankIndices();
int maxBank = 0;
for (int i = 0; i < bankIndices.length; i++)
if (maxBank > bankIndices[i]) maxBank = bankIndices[i];
if (maxBank > 0) singleBank = false;
pixelStride = csm.getPixelStride();
scanlineStride = csm.getScanlineStride();
bandOffsets = csm.getBandOffsets();
for (int i = 0; i < bandOffsets.length; i++)
if (bandStride < bandOffsets[i]) bandStride = bandOffsets[i];
} else if (originalSampleModel instanceof MultiPixelPackedSampleModel) {
scanlineStride = ((MultiPixelPackedSampleModel) originalSampleModel).getScanlineStride();
} else if (originalSampleModel instanceof SinglePixelPackedSampleModel) {
pixelStride = 1;
scanlineStride = ((SinglePixelPackedSampleModel) originalSampleModel).getScanlineStride();
}
// The dstination buffer for the raster
byte[] destPixbuf = null; // byte buffer for the decoded pixels.
short[] destSPixbuf = null; // byte buffer for the decoded pixels.
int[] destIPixbuf = null; // byte buffer for the decoded pixels.
float[] destFPixbuf = null; // byte buffer for the decoded pixels.
double[] destDPixbuf = null; // byte buffer for the decoded pixels.
int[] destBandOffsets = null;
int destPixelStride = 0;
int destScanlineStride = 0;
int destSX = 0; // The first pixel for the destionation
if (raster.getSampleModel() instanceof ComponentSampleModel) {
ComponentSampleModel csm = (ComponentSampleModel) raster.getSampleModel();
bankIndices = csm.getBankIndices();
destBandOffsets = csm.getBandOffsets();
destPixelStride = csm.getPixelStride();
destScanlineStride = csm.getScanlineStride();
destSX =
csm.getOffset(
raster.getMinX() - raster.getSampleModelTranslateX(),
raster.getMinY() - raster.getSampleModelTranslateY())
- destBandOffsets[0];
switch (dataType) {
case DataBuffer.TYPE_BYTE:
destPixbuf = ((DataBufferByte) raster.getDataBuffer()).getData();
break;
case DataBuffer.TYPE_SHORT:
destSPixbuf = ((DataBufferShort) raster.getDataBuffer()).getData();
break;
case DataBuffer.TYPE_USHORT:
destSPixbuf = ((DataBufferUShort) raster.getDataBuffer()).getData();
break;
case DataBuffer.TYPE_INT:
destIPixbuf = ((DataBufferInt) raster.getDataBuffer()).getData();
break;
case DataBuffer.TYPE_FLOAT:
destFPixbuf = ((DataBufferFloat) raster.getDataBuffer()).getData();
break;
case DataBuffer.TYPE_DOUBLE:
destDPixbuf = ((DataBufferDouble) raster.getDataBuffer()).getData();
break;
}
} else if (raster.getSampleModel() instanceof SinglePixelPackedSampleModel) {
numBands = 1;
bankIndices = new int[] {0};
destBandOffsets = new int[numBands];
for (int i = 0; i < numBands; i++) destBandOffsets[i] = 0;
destPixelStride = 1;
destScanlineStride =
((SinglePixelPackedSampleModel) raster.getSampleModel()).getScanlineStride();
}
// Start the data delivery to the cached consumers tile by tile
for (int y = startYTile; y <= endYTile; y++) {
if (reader.getAbortRequest()) break;
// Loop on horizontal tiles
for (int x = startXTile; x <= endXTile; x++) {
if (reader.getAbortRequest()) break;
long tilePosition = position + (y * originalNumXTiles + x) * tileDataSize;
iis.seek(tilePosition);
float percentage = (x - startXTile + y * totalXTiles) / totalXTiles;
int startX = x * tileWidth;
int startY = y * tileHeight;
int cTileHeight = tileHeight;
int cTileWidth = tileWidth;
if (startY + cTileHeight >= originalDimension.height)
cTileHeight = originalDimension.height - startY;
if (startX + cTileWidth >= originalDimension.width)
cTileWidth = originalDimension.width - startX;
int tx = startX;
int ty = startY;
// If source start position calculated by taking subsampling
// into account is after the tile's start X position, adjust
// the start position accordingly
if (sourceSX > startX) {
cTileWidth += startX - sourceSX;
tx = sourceSX;
startX = sourceSX;
}
if (sourceSY > startY) {
cTileHeight += startY - sourceSY;
ty = sourceSY;
startY = sourceSY;
}
// If source end position calculated by taking subsampling
// into account is prior to the tile's end X position, adjust
// the tile width to read accordingly
if (sourceEX < startX + cTileWidth - 1) {
cTileWidth += sourceEX - startX - cTileWidth + 1;
}
if (sourceEY < startY + cTileHeight - 1) {
cTileHeight += sourceEY - startY - cTileHeight + 1;
}
// The start X in the destination
int x1 = (startX + scaleX - 1 - sourceOrigin.x) / scaleX;
int x2 = (startX + scaleX - 1 + cTileWidth - sourceOrigin.x) / scaleX;
int lineLength = x2 - x1;
x2 = (x2 - 1) * scaleX + sourceOrigin.x;
int y1 = (startY + scaleY - 1 - sourceOrigin.y) / scaleY;
startX = x1 * scaleX + sourceOrigin.x;
startY = y1 * scaleY + sourceOrigin.y;
// offx is destination.x
x1 += offx;
y1 += offy;
tx -= x * tileWidth;
ty -= y * tileHeight;
if (sampleModel instanceof MultiPixelPackedSampleModel) {
MultiPixelPackedSampleModel mppsm = (MultiPixelPackedSampleModel) originalSampleModel;
iis.skipBytes(mppsm.getOffset(tx, ty) * sampleSizeByte);
int readBytes =
(mppsm.getOffset(x2, 0) - mppsm.getOffset(startX, 0) + 1) * sampleSizeByte;
int skipLength = (scanlineStride * scaleY - readBytes) * sampleSizeByte;
readBytes *= sampleSizeByte;
if (pixbuf == null || pixbuf.length < readBytes) pixbuf = new byte[readBytes];
int bitoff = mppsm.getBitOffset(tx);
for (int l = 0, m = y1; l < cTileHeight; l += scaleY, m++) {
if (reader.getAbortRequest()) break;
iis.readFully(pixbuf, 0, readBytes);
if (scaleX == 1) {
if (bitoff != 0) {
int mask1 = (255 << bitoff) & 255;
int mask2 = ~mask1 & 255;
int shift = 8 - bitoff;
int n = 0;
for (; n < readBytes - 1; n++)
pixbuf[n] =
(byte) (((pixbuf[n] & mask2) << shift) | (pixbuf[n + 1] & mask1) >> bitoff);
pixbuf[n] = (byte) ((pixbuf[n] & mask2) << shift);
}
} else {
int bit = 7;
int pos = 0;
int mask = 128;
for (int n = 0, n1 = startX & 7; n < lineLength; n++, n1 += scaleX) {
pixbuf[pos] =
(byte)
((pixbuf[pos] & ~(1 << bit))
| (((pixbuf[n1 >> 3] >> (7 - (n1 & 7))) & 1) << bit));
bit--;
if (bit == -1) {
bit = 7;
pos++;
}
}
}
ImageUtil.setPackedBinaryData(pixbuf, raster, new Rectangle(x1, m, lineLength, 1));
iis.skipBytes(skipLength);
if (destImage != null)
reader.processImageUpdateWrapper(
destImage, x1, m, cTileWidth, 1, 1, 1, destinationBands);
reader.processImageProgressWrapper(
percentage + (l - startY + 1.0F) / cTileHeight / totalTiles);
}
} else {
int readLength, skipLength;
if (pixelStride < scanlineStride) {
readLength = cTileWidth * pixelStride;
skipLength = (scanlineStride * scaleY - readLength) * sampleSizeByte;
} else {
readLength = cTileHeight * scanlineStride;
skipLength = (pixelStride * scaleX - readLength) * sampleSizeByte;
}
// Allocate buffer for all the types
switch (sampleModel.getDataType()) {
case DataBuffer.TYPE_BYTE:
if (pixbuf == null || pixbuf.length < readLength) pixbuf = new byte[readLength];
break;
case DataBuffer.TYPE_SHORT:
case DataBuffer.TYPE_USHORT:
if (spixbuf == null || spixbuf.length < readLength) spixbuf = new short[readLength];
break;
case DataBuffer.TYPE_INT:
if (ipixbuf == null || ipixbuf.length < readLength) ipixbuf = new int[readLength];
break;
case DataBuffer.TYPE_FLOAT:
if (fpixbuf == null || fpixbuf.length < readLength) fpixbuf = new float[readLength];
break;
case DataBuffer.TYPE_DOUBLE:
if (dpixbuf == null || dpixbuf.length < readLength) dpixbuf = new double[readLength];
break;
}
if (sampleModel instanceof PixelInterleavedSampleModel) {
iis.skipBytes((tx * pixelStride + ty * scanlineStride) * sampleSizeByte);
// variables for ther loop
int outerFirst, outerSecond, outerStep, outerBound;
int innerStep, innerStep1, outerStep1;
if (pixelStride < scanlineStride) {
outerFirst = 0;
outerSecond = y1;
outerStep = scaleY;
outerBound = cTileHeight;
innerStep = scaleX * pixelStride;
innerStep1 = destPixelStride;
outerStep1 = destScanlineStride;
} else {
outerFirst = 0;
outerSecond = x1;
outerStep = scaleX;
outerBound = cTileWidth;
innerStep = scaleY * scanlineStride;
innerStep1 = destScanlineStride;
outerStep1 = destPixelStride;
}
int destPos =
destSX
+ (y1 - raster.getSampleModelTranslateY()) * destScanlineStride
+ (x1 - raster.getSampleModelTranslateX()) * destPixelStride;
for (int l = outerFirst, m = outerSecond; l < outerBound; l += outerStep, m++) {
if (reader.getAbortRequest()) break;
switch (dataType) {
case DataBuffer.TYPE_BYTE:
if (innerStep == numBands && innerStep1 == numBands)
iis.readFully(destPixbuf, destPos, readLength);
else iis.readFully(pixbuf, 0, readLength);
break;
case DataBuffer.TYPE_SHORT:
case DataBuffer.TYPE_USHORT:
if (innerStep == numBands && innerStep1 == numBands) {
iis.readFully(destSPixbuf, destPos, readLength);
} else iis.readFully(spixbuf, 0, readLength);
break;
case DataBuffer.TYPE_INT:
if (innerStep == numBands && innerStep1 == numBands)
iis.readFully(destIPixbuf, destPos, readLength);
else iis.readFully(ipixbuf, 0, readLength);
break;
case DataBuffer.TYPE_FLOAT:
if (innerStep == numBands && innerStep1 == numBands)
iis.readFully(destFPixbuf, destPos, readLength);
else iis.readFully(fpixbuf, 0, readLength);
break;
case DataBuffer.TYPE_DOUBLE:
if (innerStep == numBands && innerStep1 == numBands)
iis.readFully(destDPixbuf, destPos, readLength);
else iis.readFully(dpixbuf, 0, readLength);
break;
}
if (innerStep != numBands || innerStep1 != numBands)
for (int b = 0; b < numBands; b++) {
int destBandOffset = destBandOffsets[destinationBands[b]];
destPos += destBandOffset;
int sourceBandOffset = bandOffsets[sourceBands[b]];
switch (dataType) {
case DataBuffer.TYPE_BYTE:
for (int m1 = 0, n = destPos;
m1 < readLength;
m1 += innerStep, n += innerStep1) {
destPixbuf[n] = pixbuf[m1 + sourceBandOffset];
}
break;
case DataBuffer.TYPE_SHORT:
case DataBuffer.TYPE_USHORT:
for (int m1 = 0, n = destPos;
m1 < readLength;
m1 += innerStep, n += innerStep1) {
destSPixbuf[n] = spixbuf[m1 + sourceBandOffset];
}
break;
case DataBuffer.TYPE_INT:
for (int m1 = 0, n = destPos;
m1 < readLength;
m1 += innerStep, n += innerStep1) {
destIPixbuf[n] = ipixbuf[m1 + sourceBandOffset];
}
break;
case DataBuffer.TYPE_FLOAT:
for (int m1 = 0, n = destPos;
m1 < readLength;
m1 += innerStep, n += innerStep1) {
destFPixbuf[n] = fpixbuf[m1 + sourceBandOffset];
}
break;
case DataBuffer.TYPE_DOUBLE:
for (int m1 = 0, n = destPos;
m1 < readLength;
m1 += innerStep, n += innerStep1) {
destDPixbuf[n] = dpixbuf[m1 + sourceBandOffset];
}
break;
}
destPos -= destBandOffset;
}
iis.skipBytes(skipLength);
destPos += outerStep1;
if (destImage != null)
if (pixelStride < scanlineStride)
reader.processImageUpdateWrapper(
destImage, x1, m, outerBound, 1, 1, 1, destinationBands);
else
reader.processImageUpdateWrapper(
destImage, m, y1, 1, outerBound, 1, 1, destinationBands);
reader.processImageProgressWrapper(percentage + (l + 1.0F) / outerBound / totalTiles);
}
} else if (sampleModel instanceof BandedSampleModel
|| sampleModel instanceof SinglePixelPackedSampleModel
|| bandStride == 0) {
boolean isBanded = sampleModel instanceof BandedSampleModel;
int bandSize = (int) ImageUtil.getBandSize(originalSampleModel);
for (int b = 0; b < numBands; b++) {
iis.seek(tilePosition + bandSize * sourceBands[b] * sampleSizeByte);
int destBandOffset = destBandOffsets[destinationBands[b]];
iis.skipBytes((ty * scanlineStride + tx * pixelStride) * sampleSizeByte);
// variables for ther loop
int outerFirst, outerSecond, outerStep, outerBound;
int innerStep, innerStep1, outerStep1;
if (pixelStride < scanlineStride) {
outerFirst = 0;
outerSecond = y1;
outerStep = scaleY;
outerBound = cTileHeight;
innerStep = scaleX * pixelStride;
innerStep1 = destPixelStride;
outerStep1 = destScanlineStride;
} else {
outerFirst = 0;
outerSecond = x1;
outerStep = scaleX;
outerBound = cTileWidth;
innerStep = scaleY * scanlineStride;
innerStep1 = destScanlineStride;
outerStep1 = destPixelStride;
}
int destPos =
destSX
+ (y1 - raster.getSampleModelTranslateY()) * destScanlineStride
+ (x1 - raster.getSampleModelTranslateX()) * destPixelStride
+ destBandOffset;
int bank = bankIndices[destinationBands[b]];
switch (dataType) {
case DataBuffer.TYPE_BYTE:
destPixbuf = ((DataBufferByte) raster.getDataBuffer()).getData(bank);
break;
case DataBuffer.TYPE_SHORT:
destSPixbuf = ((DataBufferShort) raster.getDataBuffer()).getData(bank);
break;
case DataBuffer.TYPE_USHORT:
destSPixbuf = ((DataBufferUShort) raster.getDataBuffer()).getData(bank);
break;
case DataBuffer.TYPE_INT:
destIPixbuf = ((DataBufferInt) raster.getDataBuffer()).getData(bank);
break;
case DataBuffer.TYPE_FLOAT:
destFPixbuf = ((DataBufferFloat) raster.getDataBuffer()).getData(bank);
break;
case DataBuffer.TYPE_DOUBLE:
destDPixbuf = ((DataBufferDouble) raster.getDataBuffer()).getData(bank);
break;
}
for (int l = outerFirst, m = outerSecond; l < outerBound; l += outerStep, m++) {
if (reader.getAbortRequest()) break;
switch (dataType) {
case DataBuffer.TYPE_BYTE:
if (innerStep == 1 && innerStep1 == 1) {
iis.readFully(destPixbuf, destPos, readLength);
} else {
iis.readFully(pixbuf, 0, readLength);
for (int m1 = 0, n = destPos;
m1 < readLength;
m1 += innerStep, n += innerStep1) {
destPixbuf[n] = pixbuf[m1];
}
}
break;
case DataBuffer.TYPE_SHORT:
case DataBuffer.TYPE_USHORT:
if (innerStep == 1 && innerStep1 == 1) {
iis.readFully(destSPixbuf, destPos, readLength);
} else {
iis.readFully(spixbuf, 0, readLength);
for (int m1 = 0, n = destPos;
m1 < readLength;
m1 += innerStep, n += innerStep1) {
destSPixbuf[n] = spixbuf[m1];
}
}
break;
case DataBuffer.TYPE_INT:
if (innerStep == 1 && innerStep1 == 1) {
iis.readFully(destIPixbuf, destPos, readLength);
} else {
iis.readFully(ipixbuf, 0, readLength);
for (int m1 = 0, n = destPos;
m1 < readLength;
m1 += innerStep, n += innerStep1) {
destIPixbuf[n] = ipixbuf[m1];
}
}
break;
case DataBuffer.TYPE_FLOAT:
if (innerStep == 1 && innerStep1 == 1) {
iis.readFully(destFPixbuf, destPos, readLength);
} else {
iis.readFully(fpixbuf, 0, readLength);
for (int m1 = 0, n = destPos;
m1 < readLength;
m1 += innerStep, n += innerStep1) {
destFPixbuf[n] = fpixbuf[m1];
}
}
break;
case DataBuffer.TYPE_DOUBLE:
if (innerStep == 1 && innerStep1 == 1) {
iis.readFully(destDPixbuf, destPos, readLength);
} else {
iis.readFully(dpixbuf, 0, readLength);
for (int m1 = 0, n = destPos;
m1 < readLength;
m1 += innerStep, n += innerStep1) {
destDPixbuf[n] = dpixbuf[m1];
}
}
break;
}
iis.skipBytes(skipLength);
destPos += outerStep1;
if (destImage != null) {
int[] destBands = new int[] {destinationBands[b]};
if (pixelStride < scanlineStride)
reader.processImageUpdateWrapper(
destImage, x1, m, outerBound, 1, 1, 1, destBands);
else
reader.processImageUpdateWrapper(
destImage, m, y1, 1, outerBound, 1, 1, destBands);
}
reader.processImageProgressWrapper(
(percentage + (l + 1.0F) / outerBound / numBands / totalTiles) * 100.0F);
}
}
} else if (sampleModel instanceof ComponentSampleModel) {
// for the other case, may slow
// Allocate buffer for all the types
int bufferSize = (int) tileDataSize;
switch (sampleModel.getDataType()) {
case DataBuffer.TYPE_BYTE:
if (pixbuf == null || pixbuf.length < tileDataSize)
pixbuf = new byte[(int) tileDataSize];
iis.readFully(pixbuf, 0, (int) tileDataSize);
break;
case DataBuffer.TYPE_SHORT:
case DataBuffer.TYPE_USHORT:
bufferSize /= 2;
if (spixbuf == null || spixbuf.length < bufferSize)
spixbuf = new short[(int) bufferSize];
iis.readFully(spixbuf, 0, (int) bufferSize);
break;
case DataBuffer.TYPE_INT:
bufferSize /= 4;
if (ipixbuf == null || ipixbuf.length < bufferSize)
ipixbuf = new int[(int) bufferSize];
iis.readFully(ipixbuf, 0, (int) bufferSize);
break;
case DataBuffer.TYPE_FLOAT:
bufferSize /= 4;
if (fpixbuf == null || fpixbuf.length < bufferSize)
fpixbuf = new float[(int) bufferSize];
iis.readFully(fpixbuf, 0, (int) bufferSize);
break;
case DataBuffer.TYPE_DOUBLE:
bufferSize /= 8;
if (dpixbuf == null || dpixbuf.length < bufferSize)
dpixbuf = new double[(int) bufferSize];
iis.readFully(dpixbuf, 0, (int) bufferSize);
break;
}
for (int b = 0; b < numBands; b++) {
int destBandOffset = destBandOffsets[destinationBands[b]];
int destPos =
((ComponentSampleModel) raster.getSampleModel())
.getOffset(
x1 - raster.getSampleModelTranslateX(),
y1 - raster.getSampleModelTranslateY(),
destinationBands[b]);
int bank = bankIndices[destinationBands[b]];
switch (dataType) {
case DataBuffer.TYPE_BYTE:
destPixbuf = ((DataBufferByte) raster.getDataBuffer()).getData(bank);
break;
case DataBuffer.TYPE_SHORT:
destSPixbuf = ((DataBufferShort) raster.getDataBuffer()).getData(bank);
break;
case DataBuffer.TYPE_USHORT:
destSPixbuf = ((DataBufferUShort) raster.getDataBuffer()).getData(bank);
break;
case DataBuffer.TYPE_INT:
destIPixbuf = ((DataBufferInt) raster.getDataBuffer()).getData(bank);
break;
case DataBuffer.TYPE_FLOAT:
destFPixbuf = ((DataBufferFloat) raster.getDataBuffer()).getData(bank);
break;
case DataBuffer.TYPE_DOUBLE:
destDPixbuf = ((DataBufferDouble) raster.getDataBuffer()).getData(bank);
break;
}
int srcPos =
((ComponentSampleModel) originalSampleModel).getOffset(tx, ty, sourceBands[b]);
int skipX = scaleX * pixelStride;
;
for (int l = 0, m = y1; l < cTileHeight; l += scaleY, m++) {
if (reader.getAbortRequest()) break;
switch (dataType) {
case DataBuffer.TYPE_BYTE:
for (int n = 0, m1 = srcPos, m2 = destPos;
n < lineLength;
n++, m1 += skipX, m2 += destPixelStride) destPixbuf[m2] = pixbuf[m1];
break;
case DataBuffer.TYPE_SHORT:
case DataBuffer.TYPE_USHORT:
for (int n = 0, m1 = srcPos, m2 = destPos;
n < lineLength;
n++, m1 += skipX, m2 += destPixelStride) destSPixbuf[m2] = spixbuf[m1];
break;
case DataBuffer.TYPE_INT:
for (int n = 0, m1 = srcPos, m2 = destPos;
n < lineLength;
n++, m1 += skipX, m2 += destPixelStride) destIPixbuf[m2] = ipixbuf[m1];
break;
case DataBuffer.TYPE_FLOAT:
for (int n = 0, m1 = srcPos, m2 = destPos;
n < lineLength;
n++, m1 += skipX, m2 += destPixelStride) destFPixbuf[m2] = fpixbuf[m1];
break;
case DataBuffer.TYPE_DOUBLE:
for (int n = 0, m1 = srcPos, m2 = destPos;
n < lineLength;
n++, m1 += skipX, m2 += destPixelStride) destDPixbuf[m2] = dpixbuf[m1];
break;
}
destPos += destScanlineStride;
srcPos += scanlineStride * scaleY;
if (destImage != null) {
int[] destBands = new int[] {destinationBands[b]};
reader.processImageUpdateWrapper(
destImage, x1, m, cTileHeight, 1, 1, 1, destBands);
}
reader.processImageProgressWrapper(
percentage + (l + 1.0F) / cTileHeight / numBands / totalTiles);
}
}
} else {
throw new IllegalArgumentException(I18N.getString("RawRenderedImage1"));
}
}
} // End loop on horizontal tiles
} // End loop on vertical tiles
return raster;
}
public RawRenderedImage(
RawImageInputStream iis, RawImageReader reader, ImageReadParam param, int imageIndex)
throws IOException {
this.iis = iis;
this.reader = reader;
this.param = param;
this.imageIndex = imageIndex;
this.position = iis.getImageOffset(imageIndex);
this.originalDimension = iis.getImageDimension(imageIndex);
ImageTypeSpecifier type = iis.getImageType();
sampleModel = originalSampleModel = type.getSampleModel();
colorModel = type.getColorModel();
// If the destination band is set used it
sourceBands = (param == null) ? null : param.getSourceBands();
if (sourceBands == null) {
nComp = originalSampleModel.getNumBands();
sourceBands = new int[nComp];
for (int i = 0; i < nComp; i++) sourceBands[i] = i;
} else {
sampleModel = originalSampleModel.createSubsetSampleModel(sourceBands);
colorModel = ImageUtil.createColorModel(null, sampleModel);
}
nComp = sourceBands.length;
destinationBands = (param == null) ? null : param.getDestinationBands();
if (destinationBands == null) {
destinationBands = new int[nComp];
for (int i = 0; i < nComp; i++) destinationBands[i] = i;
}
Dimension dim = iis.getImageDimension(imageIndex);
this.width = dim.width;
this.height = dim.height;
Rectangle sourceRegion = new Rectangle(0, 0, this.width, this.height);
originalRegion = (Rectangle) sourceRegion.clone();
destinationRegion = (Rectangle) sourceRegion.clone();
if (param != null) {
RawImageReader.computeRegionsWrapper(
param, this.width, this.height, param.getDestination(), sourceRegion, destinationRegion);
scaleX = param.getSourceXSubsampling();
scaleY = param.getSourceYSubsampling();
xOffset = param.getSubsamplingXOffset();
yOffset = param.getSubsamplingYOffset();
}
sourceOrigin = new Point(sourceRegion.x, sourceRegion.y);
if (!destinationRegion.equals(sourceRegion)) noTransform = false;
this.tileDataSize = ImageUtil.getTileSize(originalSampleModel);
this.tileWidth = originalSampleModel.getWidth();
this.tileHeight = originalSampleModel.getHeight();
this.tileGridXOffset = destinationRegion.x;
this.tileGridYOffset = destinationRegion.y;
this.originalNumXTiles = getNumXTiles();
this.width = destinationRegion.width;
this.height = destinationRegion.height;
this.minX = destinationRegion.x;
this.minY = destinationRegion.y;
sampleModel = sampleModel.createCompatibleSampleModel(tileWidth, tileHeight);
maxXTile = originalDimension.width / tileWidth;
maxYTile = originalDimension.height / tileHeight;
}
