/**
* Ipp filter.
*
* @param src the src.
* @param dst the dst.
* @param imageType the image type.
* @return the int.
*/
@SuppressWarnings("unused")
private int ippFilter(Raster src, WritableRaster dst, int imageType) {
int srcStride, dstStride;
boolean skipChannel = false;
int channels;
int offsets[] = null;
switch (imageType) {
case BufferedImage.TYPE_INT_RGB:
case BufferedImage.TYPE_INT_BGR:
{
channels = 4;
srcStride = src.getWidth() * 4;
dstStride = dst.getWidth() * 4;
skipChannel = true;
break;
}
case BufferedImage.TYPE_INT_ARGB:
case BufferedImage.TYPE_INT_ARGB_PRE:
case BufferedImage.TYPE_4BYTE_ABGR:
case BufferedImage.TYPE_4BYTE_ABGR_PRE:
{
channels = 4;
srcStride = src.getWidth() * 4;
dstStride = dst.getWidth() * 4;
break;
}
case BufferedImage.TYPE_BYTE_GRAY:
case BufferedImage.TYPE_BYTE_INDEXED:
{
channels = 1;
srcStride = src.getWidth();
dstStride = dst.getWidth();
break;
}
case BufferedImage.TYPE_3BYTE_BGR:
{
channels = 3;
srcStride = src.getWidth() * 3;
dstStride = dst.getWidth() * 3;
break;
}
case BufferedImage.TYPE_USHORT_GRAY: // TODO - could be done in
// native code?
case BufferedImage.TYPE_USHORT_565_RGB:
case BufferedImage.TYPE_USHORT_555_RGB:
case BufferedImage.TYPE_BYTE_BINARY:
{
return slowFilter(src, dst);
}
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);
}
channels = srcSM.getNumBands(); // Have IPP functions for 1,
// 3 and 4 channels
if (channels != 1 && channels != 3 && channels != 4) {
return slowFilter(src, dst);
}
int dataTypeSize = DataBuffer.getDataTypeSize(srcSM.getDataType()) / 8;
srcStride = ((ComponentSampleModel) srcSM).getScanlineStride() * dataTypeSize;
dstStride = ((ComponentSampleModel) dstSM).getScanlineStride() * dataTypeSize;
} else if (srcSM instanceof SinglePixelPackedSampleModel
&& dstSM instanceof SinglePixelPackedSampleModel) {
// Check SinglePixelPackedSampleModel
SinglePixelPackedSampleModel sppsm1 = (SinglePixelPackedSampleModel) srcSM;
SinglePixelPackedSampleModel sppsm2 = (SinglePixelPackedSampleModel) dstSM;
// No IPP function for this type
if (sppsm1.getDataType() == DataBuffer.TYPE_USHORT) {
return slowFilter(src, dst);
}
channels = sppsm1.getNumBands();
// Have IPP functions for 1, 3 and 4 channels
if (channels != 1 && channels != 3 && channels != 4) {
return slowFilter(src, dst);
}
// Check compatibility of sample models
if (sppsm1.getDataType() != sppsm2.getDataType()
|| !Arrays.equals(sppsm1.getBitOffsets(), sppsm2.getBitOffsets())
|| !Arrays.equals(sppsm1.getBitMasks(), sppsm2.getBitMasks())) {
return slowFilter(src, dst);
}
for (int i = 0; i < channels; i++) {
if (sppsm1.getSampleSize(i) != 8) {
return slowFilter(src, dst);
}
}
if (channels == 3) {
channels = 4;
}
int dataTypeSize = DataBuffer.getDataTypeSize(sppsm1.getDataType()) / 8;
srcStride = sppsm1.getScanlineStride() * dataTypeSize;
dstStride = sppsm2.getScanlineStride() * dataTypeSize;
} else {
return slowFilter(src, dst);
}
// 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();
}
}
}
}
double m00 = at.getScaleX();
double m01 = at.getShearX();
double m02 = at.getTranslateX();
double m10 = at.getShearY();
double m11 = at.getScaleY();
double m12 = at.getTranslateY();
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
}
return ippAffineTransform(
m00,
m01,
m02,
m10,
m11,
m12,
srcData,
src.getWidth(),
src.getHeight(),
srcStride,
dstData,
dst.getWidth(),
dst.getHeight(),
dstStride,
iType,
channels,
skipChannel,
offsets);
}
public BufferedImage read(int imageIndex, ImageReadParam param) throws IOException {
checkIndex(imageIndex);
readHeader();
if (iis == null) throw new IllegalStateException("input is null");
BufferedImage img;
clearAbortRequest();
processImageStarted(imageIndex);
if (param == null) param = getDefaultReadParam();
sourceRegion = new Rectangle(0, 0, 0, 0);
destinationRegion = new Rectangle(0, 0, 0, 0);
computeRegions(
param, this.width, this.height, param.getDestination(), sourceRegion, destinationRegion);
scaleX = param.getSourceXSubsampling();
scaleY = param.getSourceYSubsampling();
// If the destination band is set used it
sourceBands = param.getSourceBands();
destBands = param.getDestinationBands();
seleBand = (sourceBands != null) && (destBands != null);
noTransform = destinationRegion.equals(new Rectangle(0, 0, width, height)) || seleBand;
if (!seleBand) {
sourceBands = new int[colorPlanes];
destBands = new int[colorPlanes];
for (int i = 0; i < colorPlanes; i++) destBands[i] = sourceBands[i] = i;
}
// If the destination is provided, then use it. Otherwise, create new one
bi = param.getDestination();
// Get the image data.
WritableRaster raster = null;
if (bi == null) {
if (sampleModel != null && colorModel != null) {
sampleModel =
sampleModel.createCompatibleSampleModel(
destinationRegion.width + destinationRegion.x,
destinationRegion.height + destinationRegion.y);
if (seleBand) sampleModel = sampleModel.createSubsetSampleModel(sourceBands);
raster = Raster.createWritableRaster(sampleModel, new Point(0, 0));
bi = new BufferedImage(colorModel, raster, false, null);
}
} else {
raster = bi.getWritableTile(0, 0);
sampleModel = bi.getSampleModel();
colorModel = bi.getColorModel();
noTransform &= destinationRegion.equals(raster.getBounds());
}
byte bdata[] = null; // buffer for byte data
if (sampleModel.getDataType() == DataBuffer.TYPE_BYTE)
bdata = (byte[]) ((DataBufferByte) raster.getDataBuffer()).getData();
readImage(bdata);
if (abortRequested()) processReadAborted();
else processImageComplete();
return bi;
}