dstIF = createImageFormat(dst);
short srcChanData[] = (short[]) srcIF.getChannelData();
short dstChanData[] = (short[]) dstIF.getChannelData();
ColorModel srcCM = src.getColorModel();
int nColorChannels = srcCM.getNumColorComponents();
scaler.loadScalingData(srcCM.getColorSpace()); // input scaling data
ColorModel dstCM = dst.getColorModel();
// Prepare array for alpha channel
float alpha[] = null;
boolean saveAlpha = srcCM.hasAlpha() && dstCM.hasAlpha();
if (saveAlpha) {
alpha = new float[src.getWidth()*src.getHeight()];
}
WritableRaster wr = src.getRaster();
int srcDataPos = 0, alphaPos = 0;
float normalizedVal[];
for (int row=0, nRows = srcIF.getNumRows(); row<nRows; row++) {
for (int col=0, nCols = srcIF.getNumCols(); col<nCols; col++) {
normalizedVal = srcCM.getNormalizedComponents(
wr.getDataElements(col, row, null),
null, 0);
// Save alpha channel
if (saveAlpha) {
// We need nColorChannels'th element cause it's nChannels - 1
alpha[alphaPos++] = normalizedVal[nColorChannels];
}
scaler.scale(normalizedVal, srcChanData, srcDataPos);
srcDataPos += nColorChannels;
}
}
t.translateColors(srcIF, dstIF);
nColorChannels = dstCM.getNumColorComponents();
boolean fillAlpha = dstCM.hasAlpha();
scaler.loadScalingData(dstCM.getColorSpace()); // output scaling data
float dstPixel[] = new float[dstCM.getNumComponents()];
int dstDataPos = 0;
alphaPos = 0;
wr = dst.getRaster();
for (int row=0, nRows = dstIF.getNumRows(); row<nRows; row++) {
for (int col=0, nCols = dstIF.getNumCols(); col<nCols; col++) {
scaler.unscale(dstPixel, dstChanData, dstDataPos);
dstDataPos += nColorChannels;
if (fillAlpha) {
if (saveAlpha) {
dstPixel[nColorChannels] = alpha[alphaPos++];
} else {
dstPixel[nColorChannels] = 1f;
}
}
wr.setDataElements(col, row,
dstCM.getDataElements(dstPixel, 0 , null));
}
}
}