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'''OpenGL extension SGIX.clipmap
Overview (from the spec)
Mipmaps provide a general but expensive solution when the texture image
is very large. This extension defines clipmaps, which occupy a small
subset of the memory required by equivalent mipmaps, but provide much
of the mipmap rendering capabilities. Clipmaps are especially useful
for rendering terrain.
The official definition of this extension is available here:
http://oss.sgi.com/projects/ogl-sample/registry/SGIX/clipmap.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_SGIX_clipmap'
GL_LINEAR_CLIPMAP_LINEAR_SGIX = constant.Constant( 'GL_LINEAR_CLIPMAP_LINEAR_SGIX', 0x8170 )
GL_TEXTURE_CLIPMAP_CENTER_SGIX = constant.Constant( 'GL_TEXTURE_CLIPMAP_CENTER_SGIX', 0x8171 )
GL_TEXTURE_CLIPMAP_FRAME_SGIX = constant.Constant( 'GL_TEXTURE_CLIPMAP_FRAME_SGIX', 0x8172 )
GL_TEXTURE_CLIPMAP_OFFSET_SGIX = constant.Constant( 'GL_TEXTURE_CLIPMAP_OFFSET_SGIX', 0x8173 )
GL_TEXTURE_CLIPMAP_VIRTUAL_DEPTH_SGIX = constant.Constant( 'GL_TEXTURE_CLIPMAP_VIRTUAL_DEPTH_SGIX', 0x8174 )
GL_TEXTURE_CLIPMAP_LOD_OFFSET_SGIX = constant.Constant( 'GL_TEXTURE_CLIPMAP_LOD_OFFSET_SGIX', 0x8175 )
GL_TEXTURE_CLIPMAP_DEPTH_SGIX = constant.Constant( 'GL_TEXTURE_CLIPMAP_DEPTH_SGIX', 0x8176 )
GL_MAX_CLIPMAP_DEPTH_SGIX = constant.Constant( 'GL_MAX_CLIPMAP_DEPTH_SGIX', 0x8177 )
GL_MAX_CLIPMAP_VIRTUAL_DEPTH_SGIX = constant.Constant( 'GL_MAX_CLIPMAP_VIRTUAL_DEPTH_SGIX', 0x8178 )
GL_NEAREST_CLIPMAP_NEAREST_SGIX = constant.Constant( 'GL_NEAREST_CLIPMAP_NEAREST_SGIX', 0x844D )
GL_NEAREST_CLIPMAP_LINEAR_SGIX = constant.Constant( 'GL_NEAREST_CLIPMAP_LINEAR_SGIX', 0x844E )
GL_LINEAR_CLIPMAP_NEAREST_SGIX = constant.Constant( 'GL_LINEAR_CLIPMAP_NEAREST_SGIX', 0x844F )
def glInitClipmapSGIX():
'''Return boolean indicating whether this extension is available'''
return extensions.hasGLExtension( EXTENSION_NAME )
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