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-rw-r--r--src/jogl/classes/com/jogamp/opengl/util/texture/spi/TGAImage.java79
1 files changed, 58 insertions, 21 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/util/texture/spi/TGAImage.java b/src/jogl/classes/com/jogamp/opengl/util/texture/spi/TGAImage.java
index e202c59b7..2ff3b9cf0 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/texture/spi/TGAImage.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/texture/spi/TGAImage.java
@@ -273,7 +273,16 @@ public class TGAImage {
throw new IOException("TGADecoder Compressed Colormapped images not supported");
case Header.TRUECOLOR:
- throw new IOException("TGADecoder Compressed True Color images not supported");
+ switch (header.pixelDepth) {
+ case 16:
+ throw new IOException("TGADecoder Compressed 16-bit True Color images not supported");
+
+ case 24:
+ case 32:
+ decodeRGBImageRLE24_32(glp, dIn);
+ break;
+ }
+ break;
case Header.BLACKWHITE:
throw new IOException("TGADecoder Compressed Grayscale images not supported");
@@ -285,9 +294,11 @@ public class TGAImage {
* RGB or ARGB image respectively.
*/
private void decodeRGBImageU24_32(GLProfile glp, LEDataInputStream dIn) throws IOException {
+ setupImage24_32(glp);
+
int i; // row index
int y; // output row index
- int rawWidth = header.width() * (header.pixelDepth() / 8);
+ int rawWidth = header.width() * bpp;
byte[] rawBuf = new byte[rawWidth];
byte[] tmpData = new byte[rawWidth * header.height()];
@@ -302,31 +313,57 @@ public class TGAImage {
System.arraycopy(rawBuf, 0, tmpData, y * rawWidth, rawBuf.length);
}
- if (header.pixelDepth() == 24) {
- bpp=3;
- if(glp.isGL2GL3()) {
- format = GL2GL3.GL_BGR;
- } else {
- format = GL.GL_RGB;
- swapBGR(tmpData, rawWidth, header.height(), bpp);
- }
- } else {
- assert header.pixelDepth() == 32;
- bpp=4;
+ if(format == GL.GL_RGB || format == GL.GL_RGBA)
+ swapBGR(tmpData, rawWidth, header.height(), bpp);
+ data = ByteBuffer.wrap(tmpData);
+ }
+
+ /**
+ * This assumes that the body is for a 24 bit or 32 bit for a
+ * RGB or ARGB image respectively.
+ */
+ private void decodeRGBImageRLE24_32(GLProfile glp, LEDataInputStream dIn) throws IOException {
+ setupImage24_32(glp);
+
+ byte[] pixel = new byte[bpp];
+ int rawWidth = header.width() * bpp;
+ byte[] tmpData = new byte[rawWidth * header.height()];
+ int i = 0, j;
+ int packet, len;
+ while (i < tmpData.length) {
+ packet = dIn.readUnsignedByte();
+ len = (packet & 0x7F) + 1;
+ if ((packet & 0x80) != 0) {
+ dIn.read(pixel);
+ for (j = 0; j < len; ++j)
+ System.arraycopy(pixel, 0, tmpData, i + j * bpp, bpp);
+ } else
+ dIn.read(tmpData, i, len * bpp);
+ i += bpp * len;
+ }
+
+ if(format == GL.GL_RGB || format == GL.GL_RGBA)
+ swapBGR(tmpData, rawWidth, header.height(), bpp);
+ data = ByteBuffer.wrap(tmpData);
+ }
+
+ private void setupImage24_32(GLProfile glp) {
+ bpp = header.pixelDepth / 8;
+ switch (header.pixelDepth) {
+ case 24:
+ format = glp.isGL2GL3() ? GL2GL3.GL_BGR : GL.GL_RGB;
+ break;
+ case 32:
boolean useBGRA = glp.isGL2GL3();
if(!useBGRA) {
final GLContext ctx = GLContext.getCurrent();
useBGRA = null != ctx && ctx.isTextureFormatBGRA8888Available();
}
- if( useBGRA ) {
- format = GL.GL_BGRA;
- } else {
- format = GL.GL_RGBA;
- swapBGR(tmpData, rawWidth, header.height(), bpp);
- }
+ format = useBGRA ? GL.GL_BGRA : GL.GL_RGBA;
+ break;
+ default:
+ assert false;
}
-
- data = ByteBuffer.wrap(tmpData);
}
private static void swapBGR(byte[] data, int bWidth, int height, int bpp) {