diff options
| author | Sven Gothel <[email protected]> | 2012-12-31 16:39:15 +0100 |
|---|---|---|
| committer | Sven Gothel <[email protected]> | 2012-12-31 16:39:15 +0100 |
| commit | 921b33825340d27deec2883ded21cb7434decc94 (patch) | |
| tree | 164ce843d4939144f63fd7d7db24124c86a332d4 /src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkOFFS.java | |
| parent | 96f8f55a8db5f430fc17ce9ea1bf45e4728ab6ac (diff) | |
Update PNGJ 0.85 -> 1.12 (w/ interlace read support) ; Added PNG Interlace read tests (TestPNGTextureFromFileNEWT)
Diffstat (limited to 'src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkOFFS.java')
| -rw-r--r-- | src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkOFFS.java | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkOFFS.java b/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkOFFS.java new file mode 100644 index 000000000..a3bab4995 --- /dev/null +++ b/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkOFFS.java @@ -0,0 +1,89 @@ +package jogamp.opengl.util.pngj.chunks;
+
+import jogamp.opengl.util.pngj.ImageInfo;
+import jogamp.opengl.util.pngj.PngHelperInternal;
+import jogamp.opengl.util.pngj.PngjException;
+
+/**
+ * oFFs chunk.
+ * <p>
+ * see http://www.libpng.org/pub/png/spec/register/pngext-1.3.0-pdg.html#C.oFFs
+ */
+public class PngChunkOFFS extends PngChunkSingle {
+ public final static String ID = "oFFs";
+
+ // http://www.libpng.org/pub/png/spec/register/pngext-1.3.0-pdg.html#C.oFFs
+ private long posX;
+ private long posY;
+ private int units; // 0: pixel 1:micrometer
+
+ public PngChunkOFFS(ImageInfo info) {
+ super(ID, info);
+ }
+
+ @Override
+ public ChunkOrderingConstraint getOrderingConstraint() {
+ return ChunkOrderingConstraint.BEFORE_IDAT;
+ }
+
+ @Override
+ public ChunkRaw createRawChunk() {
+ ChunkRaw c = createEmptyChunk(9, true);
+ PngHelperInternal.writeInt4tobytes((int) posX, c.data, 0);
+ PngHelperInternal.writeInt4tobytes((int) posY, c.data, 4);
+ c.data[8] = (byte) units;
+ return c;
+ }
+
+ @Override
+ public void parseFromRaw(ChunkRaw chunk) {
+ if (chunk.len != 9)
+ throw new PngjException("bad chunk length " + chunk);
+ posX = PngHelperInternal.readInt4fromBytes(chunk.data, 0);
+ if (posX < 0)
+ posX += 0x100000000L;
+ posY = PngHelperInternal.readInt4fromBytes(chunk.data, 4);
+ if (posY < 0)
+ posY += 0x100000000L;
+ units = PngHelperInternal.readInt1fromByte(chunk.data, 8);
+ }
+
+ @Override
+ public void cloneDataFromRead(PngChunk other) {
+ PngChunkOFFS otherx = (PngChunkOFFS) other;
+ this.posX = otherx.posX;
+ this.posY = otherx.posY;
+ this.units = otherx.units;
+ }
+
+ /**
+ * 0: pixel, 1:micrometer
+ */
+ public int getUnits() {
+ return units;
+ }
+
+ /**
+ * 0: pixel, 1:micrometer
+ */
+ public void setUnits(int units) {
+ this.units = units;
+ }
+
+ public long getPosX() {
+ return posX;
+ }
+
+ public void setPosX(long posX) {
+ this.posX = posX;
+ }
+
+ public long getPosY() {
+ return posY;
+ }
+
+ public void setPosY(long posY) {
+ this.posY = posY;
+ }
+
+}
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