55 lines
1.1 KiB
Java
55 lines
1.1 KiB
Java
package ar.com.hjg.pngj.chunks;
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import ar.com.hjg.pngj.ImageInfo;
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import ar.com.hjg.pngj.PngjException;
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/**
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* sTER chunk.
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* <p>
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* see http://www.libpng.org/pub/png/spec/register/pngext-1.3.0-pdg.html#C.sTER
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*/
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public class PngChunkSTER extends PngChunkSingle {
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public final static String ID = "sTER";
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// http://www.libpng.org/pub/png/spec/register/pngext-1.3.0-pdg.html#C.sTER
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private byte mode; // 0: cross-fuse layout 1: diverging-fuse layout
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public PngChunkSTER(ImageInfo info) {
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super(ID, info);
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}
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@Override
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public ChunkOrderingConstraint getOrderingConstraint() {
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return ChunkOrderingConstraint.BEFORE_IDAT;
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}
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@Override
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public ChunkRaw createRawChunk() {
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ChunkRaw c = createEmptyChunk(1, true);
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c.data[0] = (byte) mode;
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return c;
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}
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@Override
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public void parseFromRaw(ChunkRaw chunk) {
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if (chunk.len != 1)
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throw new PngjException("bad chunk length " + chunk);
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mode = chunk.data[0];
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}
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/**
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* 0: cross-fuse layout 1: diverging-fuse layout
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*/
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public byte getMode() {
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return mode;
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}
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/**
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* 0: cross-fuse layout 1: diverging-fuse layout
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*/
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public void setMode(byte mode) {
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this.mode = mode;
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}
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}
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