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'''OpenGL extension EXT.texture_sRGB
Overview (from the spec)
Conventional texture formats assume a linear color space. So for
a conventional internal texture format such as GL_RGB8, the 256
discrete values for each 8-bit color component map linearly and
uniformly to the [0,1] range.
The sRGB color space is based on typical (non-linear) monitor
characteristics expected in a dimly lit office. It has been
standardized by the International Electrotechnical Commission (IEC)
as IEC 61966-2-1. The sRGB color space roughly corresponds to 2.2
gamma correction.
This extension adds a few new uncompressed and compressed color
texture formats with sRGB color components.
The official definition of this extension is available here:
http://oss.sgi.com/projects/ogl-sample/registry/EXT/texture_sRGB.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_EXT_texture_sRGB'
GL_SRGB_EXT = constant.Constant( 'GL_SRGB_EXT', 0x8C40 )
GL_SRGB8_EXT = constant.Constant( 'GL_SRGB8_EXT', 0x8C41 )
GL_SRGB_ALPHA_EXT = constant.Constant( 'GL_SRGB_ALPHA_EXT', 0x8C42 )
GL_SRGB8_ALPHA8_EXT = constant.Constant( 'GL_SRGB8_ALPHA8_EXT', 0x8C43 )
GL_SLUMINANCE_ALPHA_EXT = constant.Constant( 'GL_SLUMINANCE_ALPHA_EXT', 0x8C44 )
GL_SLUMINANCE8_ALPHA8_EXT = constant.Constant( 'GL_SLUMINANCE8_ALPHA8_EXT', 0x8C45 )
GL_SLUMINANCE_EXT = constant.Constant( 'GL_SLUMINANCE_EXT', 0x8C46 )
GL_SLUMINANCE8_EXT = constant.Constant( 'GL_SLUMINANCE8_EXT', 0x8C47 )
GL_COMPRESSED_SRGB_EXT = constant.Constant( 'GL_COMPRESSED_SRGB_EXT', 0x8C48 )
GL_COMPRESSED_SRGB_ALPHA_EXT = constant.Constant( 'GL_COMPRESSED_SRGB_ALPHA_EXT', 0x8C49 )
GL_COMPRESSED_SLUMINANCE_EXT = constant.Constant( 'GL_COMPRESSED_SLUMINANCE_EXT', 0x8C4A )
GL_COMPRESSED_SLUMINANCE_ALPHA_EXT = constant.Constant( 'GL_COMPRESSED_SLUMINANCE_ALPHA_EXT', 0x8C4B )
GL_COMPRESSED_SRGB_S3TC_DXT1_EXT = constant.Constant( 'GL_COMPRESSED_SRGB_S3TC_DXT1_EXT', 0x8C4C )
GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT = constant.Constant( 'GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT', 0x8C4D )
GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT = constant.Constant( 'GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT', 0x8C4E )
GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT = constant.Constant( 'GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT', 0x8C4F )
def glInitTextureSrgbEXT():
'''Return boolean indicating whether this extension is available'''
return extensions.hasGLExtension( EXTENSION_NAME )
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