Querying OpenGL for Compressed Texture formats

Hi,

I'm trying to create a GL reporter in PyOpenGL to tell me what my OpenGL install
can do.  I'm particularly interested in compressed textures.

I'm on Fedora Core 3 (yes yes I know, I got it to work but I'll upgrade to 5 or
6 someday soon) and running via GlX - though I am testing my code in parallel at
home under Win32 as well.  So far so good.

The following is odd, or I am missing something, or both.

If I do the following:

print "NUM_COMPRESSED_TEXTURE_FORMATS: " +
str(glGetInteger(GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB))

I get an integer back (on the i915 chipset I tested on its 2), fair enough.


But when I run this:

   
comptexfmtlist=glGetInteger(OpenGL.GL.ARB.texture_compression.GL_COMPRESSED_TEXTURE_FORMATS_ARB)
print "COMPRESSED_TEXTURE_FORMATS:  " + str(comptexfmtlist)


comptexfmtlist comes back as a list of integers, not strings.  Strange.
Of course what I really want to get is the identifier strings, like for example:
COMPRESSED_RGB_S3TC_DXT1_EXT
COMPRESSED_RGBA_S3TC_DXT3_EXT
COMPRESSED_RGBA_S3TC_DXT5_EXT

etc....

I've found some constants by those names defined under site-packages in
OpenGL/GL/EXT/texture_compression_s3tc.py
OpenGL/GL/_3DFX/texture_compression_FXT1.py

etc....

-but no actual strings.

So I guess my question is - how best to use those integers that come back ?
Or are the strings hiding somewhere I can get them ?  Or should I just query
each format individually for its existence (somehow) ? eg using glewpy (somehow) ?

Any enlightenment appreciated.


The imports I have are:
from OpenGL.GL import *
from OpenGL.GLUT import *
from OpenGL.GLU import *
import OpenGL.GL.ARB.texture_compression
from glew import *

import time
import struct
import sys
from operator import *
from Image import *


Jon


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