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'''OpenGL extension SGIS.sharpen_texture
Overview (from the spec)
This extension introduces texture magnification filters that sharpen
the resulting image by extrapolating from the level 1 image to the
level 0 image. Sharpening can be enabled for all color channels, for
the alpha channel only, or for the red, green, and blue channels only.
The official definition of this extension is available here:
http://oss.sgi.com/projects/ogl-sample/registry/SGIS/sharpen_texture.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_SGIS_sharpen_texture'
GL_LINEAR_SHARPEN_SGIS = constant.Constant( 'GL_LINEAR_SHARPEN_SGIS', 0x80AD )
GL_LINEAR_SHARPEN_ALPHA_SGIS = constant.Constant( 'GL_LINEAR_SHARPEN_ALPHA_SGIS', 0x80AE )
GL_LINEAR_SHARPEN_COLOR_SGIS = constant.Constant( 'GL_LINEAR_SHARPEN_COLOR_SGIS', 0x80AF )
GL_SHARPEN_TEXTURE_FUNC_POINTS_SGIS = constant.Constant( 'GL_SHARPEN_TEXTURE_FUNC_POINTS_SGIS', 0x80B0 )
glSharpenTexFuncSGIS = platform.createExtensionFunction(
'glSharpenTexFuncSGIS', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, constants.GLsizei, arrays.GLfloatArray,),
doc = 'glSharpenTexFuncSGIS( GLenum(target), GLsizei(n), GLfloatArray(points) ) -> None',
argNames = ('target', 'n', 'points',),
)
glGetSharpenTexFuncSGIS = platform.createExtensionFunction(
'glGetSharpenTexFuncSGIS', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, arrays.GLfloatArray,),
doc = 'glGetSharpenTexFuncSGIS( GLenum(target), GLfloatArray(points) ) -> None',
argNames = ('target', 'points',),
)
def glInitSharpenTextureSGIS():
'''Return boolean indicating whether this extension is available'''
return extensions.hasGLExtension( EXTENSION_NAME )
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