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-rw-r--r--src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkTRNS.java284
1 files changed, 141 insertions, 143 deletions
diff --git a/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkTRNS.java b/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkTRNS.java
index 1de5c0833..b68776477 100644
--- a/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkTRNS.java
+++ b/src/jogl/classes/jogamp/opengl/util/pngj/chunks/PngChunkTRNS.java
@@ -1,143 +1,141 @@
-package jogamp.opengl.util.pngj.chunks;
-
-import jogamp.opengl.util.pngj.ImageInfo;
-import jogamp.opengl.util.pngj.PngHelperInternal;
-import jogamp.opengl.util.pngj.PngjException;
-
-/**
- * tRNS chunk.
- * <p>
- * see http://www.w3.org/TR/PNG/#11tRNS
- * <p>
- * this chunk structure depends on the image type
- */
-public class PngChunkTRNS extends PngChunkSingle {
- public final static String ID = ChunkHelper.tRNS;
-
- // http://www.w3.org/TR/PNG/#11tRNS
-
- // only one of these is meaningful, depending on the image type
- private int gray;
- private int red, green, blue;
- private int[] paletteAlpha = new int[] {};
-
- public PngChunkTRNS(ImageInfo info) {
- super(ID, info);
- }
-
- @Override
- public ChunkOrderingConstraint getOrderingConstraint() {
- return ChunkOrderingConstraint.AFTER_PLTE_BEFORE_IDAT;
- }
-
- @Override
- public ChunkRaw createRawChunk() {
- ChunkRaw c = null;
- if (imgInfo.greyscale) {
- c = createEmptyChunk(2, true);
- PngHelperInternal.writeInt2tobytes(gray, c.data, 0);
- } else if (imgInfo.indexed) {
- c = createEmptyChunk(paletteAlpha.length, true);
- for (int n = 0; n < c.len; n++) {
- c.data[n] = (byte) paletteAlpha[n];
- }
- } else {
- c = createEmptyChunk(6, true);
- PngHelperInternal.writeInt2tobytes(red, c.data, 0);
- PngHelperInternal.writeInt2tobytes(green, c.data, 0);
- PngHelperInternal.writeInt2tobytes(blue, c.data, 0);
- }
- return c;
- }
-
- @Override
- public void parseFromRaw(ChunkRaw c) {
- if (imgInfo.greyscale) {
- gray = PngHelperInternal.readInt2fromBytes(c.data, 0);
- } else if (imgInfo.indexed) {
- int nentries = c.data.length;
- paletteAlpha = new int[nentries];
- for (int n = 0; n < nentries; n++) {
- paletteAlpha[n] = (int) (c.data[n] & 0xff);
- }
- } else {
- red = PngHelperInternal.readInt2fromBytes(c.data, 0);
- green = PngHelperInternal.readInt2fromBytes(c.data, 2);
- blue = PngHelperInternal.readInt2fromBytes(c.data, 4);
- }
- }
-
- @Override
- public void cloneDataFromRead(PngChunk other) {
- PngChunkTRNS otherx = (PngChunkTRNS) other;
- gray = otherx.gray;
- red = otherx.red;
- green = otherx.red;
- blue = otherx.red;
- if (otherx.paletteAlpha != null) {
- paletteAlpha = new int[otherx.paletteAlpha.length];
- System.arraycopy(otherx.paletteAlpha, 0, paletteAlpha, 0, paletteAlpha.length);
- }
- }
-
- /**
- * Set rgb values
- *
- */
- public void setRGB(int r, int g, int b) {
- if (imgInfo.greyscale || imgInfo.indexed)
- throw new PngjException("only rgb or rgba images support this");
- red = r;
- green = g;
- blue = b;
- }
-
- public int[] getRGB() {
- if (imgInfo.greyscale || imgInfo.indexed)
- throw new PngjException("only rgb or rgba images support this");
- return new int[] { red, green, blue };
- }
-
- public void setGray(int g) {
- if (!imgInfo.greyscale)
- throw new PngjException("only grayscale images support this");
- gray = g;
- }
-
- public int getGray() {
- if (!imgInfo.greyscale)
- throw new PngjException("only grayscale images support this");
- return gray;
- }
-
- /**
- * WARNING: non deep copy
- */
- public void setPalletteAlpha(int[] palAlpha) {
- if (!imgInfo.indexed)
- throw new PngjException("only indexed images support this");
- paletteAlpha = palAlpha;
- }
-
- /**
- * to use when only one pallete index is set as totally transparent
- */
- public void setIndexEntryAsTransparent(int palAlphaIndex) {
- if (!imgInfo.indexed)
- throw new PngjException("only indexed images support this");
- paletteAlpha = new int[] { palAlphaIndex + 1 };
- for (int i = 0; i < palAlphaIndex; i++)
- paletteAlpha[i] = 255;
- paletteAlpha[palAlphaIndex] = 0;
- }
-
- /**
- * WARNING: non deep copy
- */
- public int[] getPalletteAlpha() {
- if (!imgInfo.indexed)
- throw new PngjException("only indexed images support this");
- return paletteAlpha;
- }
-
-}
+package jogamp.opengl.util.pngj.chunks;
+
+import jogamp.opengl.util.pngj.ImageInfo;
+import jogamp.opengl.util.pngj.PngHelperInternal;
+import jogamp.opengl.util.pngj.PngjException;
+
+/**
+ * tRNS chunk.
+ * <p>
+ * see http://www.w3.org/TR/PNG/#11tRNS
+ * <p>
+ * this chunk structure depends on the image type
+ */
+public class PngChunkTRNS extends PngChunkSingle {
+ public final static String ID = ChunkHelper.tRNS;
+
+ // http://www.w3.org/TR/PNG/#11tRNS
+
+ // only one of these is meaningful, depending on the image type
+ private int gray;
+ private int red, green, blue;
+ private int[] paletteAlpha = new int[] {};
+
+ public PngChunkTRNS(ImageInfo info) {
+ super(ID, info);
+ }
+
+ @Override
+ public ChunkOrderingConstraint getOrderingConstraint() {
+ return ChunkOrderingConstraint.AFTER_PLTE_BEFORE_IDAT;
+ }
+
+ @Override
+ public ChunkRaw createRawChunk() {
+ ChunkRaw c = null;
+ if (imgInfo.greyscale) {
+ c = createEmptyChunk(2, true);
+ PngHelperInternal.writeInt2tobytes(gray, c.data, 0);
+ } else if (imgInfo.indexed) {
+ c = createEmptyChunk(paletteAlpha.length, true);
+ for (int n = 0; n < c.len; n++) {
+ c.data[n] = (byte) paletteAlpha[n];
+ }
+ } else {
+ c = createEmptyChunk(6, true);
+ PngHelperInternal.writeInt2tobytes(red, c.data, 0);
+ PngHelperInternal.writeInt2tobytes(green, c.data, 0);
+ PngHelperInternal.writeInt2tobytes(blue, c.data, 0);
+ }
+ return c;
+ }
+
+ @Override
+ public void parseFromRaw(ChunkRaw c) {
+ if (imgInfo.greyscale) {
+ gray = PngHelperInternal.readInt2fromBytes(c.data, 0);
+ } else if (imgInfo.indexed) {
+ int nentries = c.data.length;
+ paletteAlpha = new int[nentries];
+ for (int n = 0; n < nentries; n++) {
+ paletteAlpha[n] = (int) (c.data[n] & 0xff);
+ }
+ } else {
+ red = PngHelperInternal.readInt2fromBytes(c.data, 0);
+ green = PngHelperInternal.readInt2fromBytes(c.data, 2);
+ blue = PngHelperInternal.readInt2fromBytes(c.data, 4);
+ }
+ }
+
+ @Override
+ public void cloneDataFromRead(PngChunk other) {
+ PngChunkTRNS otherx = (PngChunkTRNS) other;
+ gray = otherx.gray;
+ red = otherx.red;
+ green = otherx.green;
+ blue = otherx.blue;
+ if (otherx.paletteAlpha != null) {
+ paletteAlpha = new int[otherx.paletteAlpha.length];
+ System.arraycopy(otherx.paletteAlpha, 0, paletteAlpha, 0, paletteAlpha.length);
+ }
+ }
+
+ /**
+ * Set rgb values
+ *
+ */
+ public void setRGB(int r, int g, int b) {
+ if (imgInfo.greyscale || imgInfo.indexed)
+ throw new PngjException("only rgb or rgba images support this");
+ red = r;
+ green = g;
+ blue = b;
+ }
+
+ public int[] getRGB() {
+ if (imgInfo.greyscale || imgInfo.indexed)
+ throw new PngjException("only rgb or rgba images support this");
+ return new int[] { red, green, blue };
+ }
+
+ public void setGray(int g) {
+ if (!imgInfo.greyscale)
+ throw new PngjException("only grayscale images support this");
+ gray = g;
+ }
+
+ public int getGray() {
+ if (!imgInfo.greyscale)
+ throw new PngjException("only grayscale images support this");
+ return gray;
+ }
+
+ /**
+ * WARNING: non deep copy
+ */
+ public void setPalletteAlpha(int[] palAlpha) {
+ if (!imgInfo.indexed)
+ throw new PngjException("only indexed images support this");
+ paletteAlpha = palAlpha;
+ }
+
+ /**
+ * to use when only one pallete index is set as totally transparent
+ */
+ public void setIndexEntryAsTransparent(int palAlphaIndex) {
+ if (!imgInfo.indexed)
+ throw new PngjException("only indexed images support this");
+ paletteAlpha = new int[] { palAlphaIndex + 1 };
+ for (int i = 0; i < palAlphaIndex; i++)
+ paletteAlpha[i] = 255;
+ paletteAlpha[palAlphaIndex] = 0;
+ }
+
+ /**
+ * WARNING: non deep copy
+ */
+ public int[] getPalletteAlpha() {
+ return paletteAlpha;
+ }
+
+}