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#483 Minor optimization

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(cherry picked from commit 06bcf22242504361ef73cc9d369b235e6034d7fa)
This commit is contained in:
Harald Kuhr 2021-05-06 00:12:19 +02:00
parent 8a8c6b1931
commit d52522fb80
1 changed files with 4 additions and 3 deletions
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7
imageio/imageio-psd/src/main/java/com/twelvemonkeys/imageio/plugins/psd/PSDImageWriter.java
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@ -131,14 +131,15 @@ public final class PSDImageWriter extends ImageWriterBase {
imageOutput.skipBytes(byteCounts.length * (largeFormat ? 4 : 2));
// TODO: Loop over tiles?
Raster tile = sampleModel.getTransferType() == DataBuffer.TYPE_INT && sampleModel instanceof SinglePixelPackedSampleModel
? RasterUtils.asByteRaster(image.getTile(0, 0))
: image.getTile(0, 0);
for (int channel = 0; channel < channels; channel++) {
// TODO: Alpha issues:
// 1. Alpha channel is written (but not read, because there are no layers, and alpha is considered present only if layer count is negative)
// - Can we write a small hidden layer, just to have -1 layers?
// 2. Alpha needs to be premultiplied against white background (to avoid inverse halo)
Raster tile = sampleModel.getTransferType() == DataBuffer.TYPE_INT && sampleModel instanceof SinglePixelPackedSampleModel
? RasterUtils.asByteRaster(image.getTile(0, 0))
: image.getTile(0, 0);
Raster channelRaster = tile.createChild(0, 0, width, height, 0, 0, new int[] {channel});
switch (bits) {