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'''OpenGL extension NV.texture_expand_normal
Overview (from the spec)
This extension provides a remapping mode where unsigned texture
components (in the range [0,1]) can be treated as though they
contained signed data (in the range [-1,+1]). This allows
applications to easily encode signed data into unsigned texture
formats.
The functionality of this extension is nearly identical to the
EXPAND_NORMAL_NV remapping mode provided in the NV_register_combiners
extension, although it applies even if register combiners are used.
The official definition of this extension is available here:
http://oss.sgi.com/projects/ogl-sample/registry/NV/texture_expand_normal.txt
Automatically generated by the get_gl_extensions script, do not edit!
'''
from OpenGL import platform, constants, constant, arrays
from OpenGL import extensions
from OpenGL.GL import glget
import ctypes
EXTENSION_NAME = 'GL_NV_texture_expand_normal'
GL_TEXTURE_UNSIGNED_REMAP_MODE_NV = constant.Constant( 'GL_TEXTURE_UNSIGNED_REMAP_MODE_NV', 0x888F )
def glInitTextureExpandNormalNV():
'''Return boolean indicating whether this extension is available'''
return extensions.hasGLExtension( EXTENSION_NAME )
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