glPixelMap problem

OpenGL Development JOGL Development
#1

Hey.
I know glPixelMap is an uncommon gl call, so anyone who has experience with this call, please offer some insight here.

The short of what appears to be a JOGL bug it is that when I make calls to glPixelMapuiv with the parameters GL_PIXEL_MAP_I_TO_R, GL_PIXEL_MAP_I_TO_G, GL_PIXEL_MAP_I_TO_B and GL_PIXEL_MAP_I_TO_A the ints in values appear to have the wrong endianness, or possibly gl seems to be looking at the wrong end of my int.

Since I’m only concerned with 8 bits for every int (there is no byte-paramerter version of the call), the fix I’ve adopted is to bit-shift every int in the values array left by 24 bits, prior to the call. This seems to me, like a very odd or at the very least, badly documented thing to have to do.

Am I missing something with configuration or have I found a bug?

#2

Beuler?

Beuler?

Beuler?

Beuler?

Anyone?

#3

Are you using the version which takes an int[] or an IntBuffer? If an IntBuffer, are you sure you constructed the underlying ByteBuffer with native byte order?

JOGL doesn’t perform any translation of the data on the way down to OpenGL.

#4

It was the version using int[].
(This app hasen’t switched to jogl 1.1 yet).