694 2013-02-24 17:23:08 +0100 BufferUnderflowException in gluScaleImage 2013-03-09 03:44:52 +0100 1 1 3 JogAmp Jogl opengl 2 All all RESOLVED INVALID --- normal --- 0 gouessej sgothel --- b29f221c903aefdf99af8e8a8544b2223036454f --- oldest_to_newest 2225 0 gouessej 2013-02-24 17:23:08 +0100 GLUgl2.gluScaleImage(GL.GL_LUMINANCE,213,213,GL.GL_UNSIGNED_BYTE,inBuf, 256,256,GL.GL_UNSIGNED_BYTE,outBuf) throws an exception (inBuf has a capacity of 45369 bytes and outBuf has a capacity of 66560 bytes) when using the default Java implementation of GLU. My graphics card is an ATI Radeon 9250 Pro, I'm under Mageia Linux 2. I use OpenJDK 1.7 update 6. Display Vendor: Tungsten Graphics, Inc. Display Renderer: Mesa DRI R200 (RV280 5C61) x86/MMX+/3DNow!+/SSE TCL DRI2 Display Version: 1.3 Mesa 8.0.4 I'll commit a unit test very soon. 2226 1 gouessej 2013-02-24 17:29:19 +0100 The unit test is this pull request: https://github.com/sgothel/jogl/pull/59 2251 2 sgothel 2013-03-09 03:44:52 +0100 http://jogamp.org/git/?p=jogl.git;a=commit;h=b29f221c903aefdf99af8e8a8544b2223036454f The unpack alignment has to be considered, see fixed unit test. Wade's test you used as a boiler plate worked, since he used a multiple of 4, which is the default unpack alignment.