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Convert transforms list and colorCache to local variables

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This is needed because on recursion new (empty) ones are necessary.
This commit is contained in:
Simon Kammermeier 2022-08-29 16:30:22 +02:00
parent b856ce07af
commit 7382151db8
1 changed files with 5 additions and 5 deletions
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10
imageio/imageio-webp/src/main/java/com/twelvemonkeys/imageio/plugins/webp/lossless/VP8LDecoder.java
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@ -52,9 +52,6 @@ public final class VP8LDecoder {
private final ImageInputStream imageInput;
private final LSBBitReader lsbBitReader;
private final List<Transform> transforms = new ArrayList<>();
private ColorCache colorCache;
public VP8LDecoder(final ImageInputStream imageInput, final boolean debug) {
this.imageInput = imageInput;
lsbBitReader = new LSBBitReader(imageInput);
@ -67,8 +64,9 @@ public final class VP8LDecoder {
int ySize = raster.getHeight();
// Read transforms
ArrayList<Transform> transforms = new ArrayList<>();
while (topLevel && lsbBitReader.readBit() == 1) {
xSize = readTransform(xSize, ySize);
xSize = readTransform(xSize, ySize, transforms);
}
// Read color cache size
@ -83,6 +81,8 @@ public final class VP8LDecoder {
// Read Huffman codes
readHuffmanCodes(colorCacheBits, topLevel);
ColorCache colorCache = null;
if (colorCacheBits > 0) {
colorCache = new ColorCache(colorCacheBits);
}
@ -91,7 +91,7 @@ public final class VP8LDecoder {
// decodeImageData(raster, )
}
private int readTransform(int xSize, int ySize) throws IOException {
private int readTransform(int xSize, int ySize, List<Transform> transforms) throws IOException {
int transformType = (int) lsbBitReader.readBits(2);
// TODO: Each transform type can only be present once in the stream.