texture_compression_FXT1.py :  » Game-2D-3D » PyOpenGL » PyOpenGL-3.0.1 » OpenGL » GL » DFX » Python Open Source

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Python Open Source » Game 2D 3D » PyOpenGL 
PyOpenGL » PyOpenGL 3.0.1 » OpenGL » GL » DFX » texture_compression_FXT1.py
'''OpenGL extension DFX.texture_compression_FXT1

This module customises the behaviour of the 
OpenGL.raw.GL.DFX.texture_compression_FXT1 to provide a more 
Python-friendly API

Overview (from thespec import 
  
      This extension additional texture compression functionality 's FXT1
      format, specific to 3dfxsubject to all the requirements and
      limitations described by the extension GL_ARB_texture_compression.
      The FXT1 texture format supports only 2D and 3D images without
      borders.
  
      Because 3dfx expects to make continual improvement to its FXT1
      compressor implementation, 3dfx recommends that to achieve best
      visual quality applications adopt the following procedure with
      respect to reuse of textures compressed by the GL:
  
    1) Save the RENDERER and VERSION strings along with images
       compressed by the GL;
    2) Before reuse of the textures, compare the stored strings with
       strings newly returned from thecurrentGL import 
    3) If out-of-date, repeat the compression and storage steps.

The official definition of this extension is available here:
http://www.opengl.org/registry/specs/DFX/texture_compression_FXT1.txt
'''
from OpenGL import platform,constants,constant,arrays
from OpenGL import extensions,wrapper
from OpenGL.GL import glget
import ctypes
from OpenGL.raw.GL.DFX.texture_compression_FXT1 import *
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