1 files changed, 88 insertions, 0 deletions
diff --git a/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkCHRM.java b/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkCHRM.java
new file mode 100644
index 000000000..4380761c7
--- /dev/null
+++ b/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkCHRM.java
@@ -0,0 +1,88 @@
+package jogamp.opengl.util.pngj.chunks;
+
+import jogamp.opengl.util.pngj.ImageInfo;
+import jogamp.opengl.util.pngj.PngHelper;
+import jogamp.opengl.util.pngj.PngjException;
+
+/*
+ */
+public class PngChunkCHRM extends PngChunk {
+	// http://www.w3.org/TR/PNG/#11cHRM
+	private double whitex, whitey;
+	private double redx, redy;
+	private double greenx, greeny;
+	private double bluex, bluey;
+
+	public PngChunkCHRM(ImageInfo info) {
+		super(ChunkHelper.cHRM, info);
+	}
+
+	@Override
+	public boolean mustGoBeforeIDAT() {
+		return true;
+	}
+
+	@Override
+	public boolean mustGoBeforePLTE() {
+		return true;
+	}
+
+	@Override
+	public ChunkRaw createChunk() {
+		ChunkRaw c = null;
+		c = createEmptyChunk(32, true);
+		PngHelper.writeInt4tobytes(PngHelper.doubleToInt100000(whitex), c.data, 0);
+		PngHelper.writeInt4tobytes(PngHelper.doubleToInt100000(whitey), c.data, 4);
+		PngHelper.writeInt4tobytes(PngHelper.doubleToInt100000(redx), c.data, 8);
+		PngHelper.writeInt4tobytes(PngHelper.doubleToInt100000(redy), c.data, 12);
+		PngHelper.writeInt4tobytes(PngHelper.doubleToInt100000(greenx), c.data, 16);
+		PngHelper.writeInt4tobytes(PngHelper.doubleToInt100000(greeny), c.data, 20);
+		PngHelper.writeInt4tobytes(PngHelper.doubleToInt100000(bluex), c.data, 24);
+		PngHelper.writeInt4tobytes(PngHelper.doubleToInt100000(bluey), c.data, 28);
+		return c;
+	}
+
+	@Override
+	public void parseFromChunk(ChunkRaw c) {
+		if (c.len != 32)
+			throw new PngjException("bad chunk " + c);
+		whitex = PngHelper.intToDouble100000(PngHelper.readInt4fromBytes(c.data, 0));
+		whitey = PngHelper.intToDouble100000(PngHelper.readInt4fromBytes(c.data, 4));
+		redx = PngHelper.intToDouble100000(PngHelper.readInt4fromBytes(c.data, 8));
+		redy = PngHelper.intToDouble100000(PngHelper.readInt4fromBytes(c.data, 12));
+		greenx = PngHelper.intToDouble100000(PngHelper.readInt4fromBytes(c.data, 16));
+		greeny = PngHelper.intToDouble100000(PngHelper.readInt4fromBytes(c.data, 20));
+		bluex = PngHelper.intToDouble100000(PngHelper.readInt4fromBytes(c.data, 24));
+		bluey = PngHelper.intToDouble100000(PngHelper.readInt4fromBytes(c.data, 28));
+	}
+
+	@Override
+	public void cloneDataFromRead(PngChunk other) {
+		PngChunkCHRM otherx = (PngChunkCHRM) other;
+		whitex = otherx.whitex;
+		whitey = otherx.whitex;
+		redx = otherx.redx;
+		redy = otherx.redy;
+		greenx = otherx.greenx;
+		greeny = otherx.greeny;
+		bluex = otherx.bluex;
+		bluey = otherx.bluey;
+	}
+
+	public void setChromaticities(double whitex, double whitey, double redx, double redy, double greenx, double greeny,
+			double bluex, double bluey) {
+		this.whitex = whitex;
+		this.redx = redx;
+		this.greenx = greenx;
+		this.bluex = bluex;
+		this.whitey = whitey;
+		this.redy = redy;
+		this.greeny = greeny;
+		this.bluey = bluey;
+	}
+
+	public double[] getChromaticities() {
+		return new double[] { whitex, whitey, redx, redy, greenx, greeny, bluex, bluey };
+	}
+
+}