Provided fallback code paths if OpenGL 1.3 (glLoadTransposeMatrixf,

glMultTransposeMatrixf) is not available


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/joglutils/trunk@68 83d24430-9974-4f80-8418-2cc3294053b9

1 files changed, 7 insertions, 1 deletions

diff --git a/src/net/java/joglutils/msg/elements/GLProjectionMatrixElement.java b/src/net/java/joglutils/msg/elements/GLProjectionMatrixElement.java
index 6c8d7d2..3dfad8f 100644
--- a/src/net/java/joglutils/msg/elements/GLProjectionMatrixElement.java
+++ b/src/net/java/joglutils/msg/elements/GLProjectionMatrixElement.java
@@ -69,7 +69,13 @@ public class GLProjectionMatrixElement extends ProjectionMatrixElement {
     super.setElt(matrix);
     GL gl = GLU.getCurrentGL();
     gl.glMatrixMode(GL.GL_PROJECTION);
-    gl.glLoadTransposeMatrixf(matrix.getRowMajorData(), 0);
+    if (gl.isExtensionAvailable("GL_VERSION_1_3")) {
+        gl.glLoadTransposeMatrixf(matrix.getRowMajorData(), 0);
+    } else {
+        float[] tmp = new float[16];
+        matrix.getColumnMajorData(tmp);
+        gl.glLoadMatrixf(tmp, 0);
+    }
     gl.glMatrixMode(GL.GL_MODELVIEW);
   }
 }