Fix: TextureIO/TGA for ES2 (GL formats/types)

git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/branches/JOGL_2_SANDBOX@1768 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 19 insertions, 0 deletions

diff --git a/src/classes/javax/media/opengl/util/BufferUtil.java.javase b/src/classes/javax/media/opengl/util/BufferUtil.java.javase
index f9f6a5d24..2c0652b70 100755
--- a/src/classes/javax/media/opengl/util/BufferUtil.java.javase
+++ b/src/classes/javax/media/opengl/util/BufferUtil.java.javase
@@ -85,6 +85,25 @@ public class BufferUtil {
         return -1;
   }
 
+  public static final int sizeOfBufferElem(Buffer buffer) {
+        if (buffer == null) {
+            return 0;
+        }
+        if (buffer instanceof ByteBuffer) {
+            return BufferUtil.SIZEOF_BYTE;
+        } else if (buffer instanceof IntBuffer) {
+            return BufferUtil.SIZEOF_INT;
+        } else if (buffer instanceof ShortBuffer) {
+            return BufferUtil.SIZEOF_SHORT;
+        } else if (buffer instanceof FloatBuffer) {
+            return BufferUtil.SIZEOF_FLOAT;
+        } else if (buffer instanceof DoubleBuffer) {
+            return BufferUtil.SIZEOF_DOUBLE;
+        }
+        throw new RuntimeException("Unexpected buffer type " +
+                                   buffer.getClass().getName());
+  }
+
   private BufferUtil() {}
 
   //----------------------------------------------------------------------