From 921b33825340d27deec2883ded21cb7434decc94 Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Mon, 31 Dec 2012 16:39:15 +0100
Subject: Update PNGJ 0.85 -> 1.12 (w/ interlace read support) ; Added PNG
 Interlace read tests (TestPNGTextureFromFileNEWT)

---
 .../opengl/util/pngj/chunks/PngChunkSTER.java      | 60 ++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkSTER.java

(limited to 'src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkSTER.java')

diff --git a/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkSTER.java b/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkSTER.java
new file mode 100644
index 000000000..4dc5edec5
--- /dev/null
+++ b/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkSTER.java
@@ -0,0 +1,60 @@
+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(ImageInfo info) {
+		super(ID, info);
+	}
+
+	@Override
+	public ChunkOrderingConstraint getOrderingConstraint() {
+		return ChunkOrderingConstraint.BEFORE_IDAT;
+	}
+
+	@Override
+	public ChunkRaw createRawChunk() {
+		ChunkRaw c = createEmptyChunk(1, true);
+		c.data[0] = (byte) mode;
+		return c;
+	}
+
+	@Override
+	public void parseFromRaw(ChunkRaw chunk) {
+		if (chunk.len != 1)
+			throw new PngjException("bad chunk length " + chunk);
+		mode = chunk.data[0];
+	}
+
+	@Override
+	public void cloneDataFromRead(PngChunk other) {
+		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(byte mode) {
+		this.mode = mode;
+	}
+
+}
-- 
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