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