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'''OpenGL extension EXT.histogram
Overview (from the spec)
This extension defines pixel operations that count occurences of
specific color component values (histogram) and that track the minimum
and maximum color component values (minmax). An optional mode allows
pixel data to be discarded after the histogram and/or minmax operations
are completed. Otherwise the pixel data continue on to the next
operation unaffected.
The official definition of this extension is available here:
http://oss.sgi.com/projects/ogl-sample/registry/EXT/histogram.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_histogram'
GL_HISTOGRAM_EXT = constant.Constant( 'GL_HISTOGRAM_EXT', 0x8024 )
glget.addGLGetConstant( GL_HISTOGRAM_EXT, (1,) )
GL_PROXY_HISTOGRAM_EXT = constant.Constant( 'GL_PROXY_HISTOGRAM_EXT', 0x8025 )
GL_HISTOGRAM_WIDTH_EXT = constant.Constant( 'GL_HISTOGRAM_WIDTH_EXT', 0x8026 )
GL_HISTOGRAM_FORMAT_EXT = constant.Constant( 'GL_HISTOGRAM_FORMAT_EXT', 0x8027 )
GL_HISTOGRAM_RED_SIZE_EXT = constant.Constant( 'GL_HISTOGRAM_RED_SIZE_EXT', 0x8028 )
GL_HISTOGRAM_GREEN_SIZE_EXT = constant.Constant( 'GL_HISTOGRAM_GREEN_SIZE_EXT', 0x8029 )
GL_HISTOGRAM_BLUE_SIZE_EXT = constant.Constant( 'GL_HISTOGRAM_BLUE_SIZE_EXT', 0x802A )
GL_HISTOGRAM_ALPHA_SIZE_EXT = constant.Constant( 'GL_HISTOGRAM_ALPHA_SIZE_EXT', 0x802B )
GL_HISTOGRAM_LUMINANCE_SIZE_EXT = constant.Constant( 'GL_HISTOGRAM_LUMINANCE_SIZE_EXT', 0x802C )
GL_HISTOGRAM_SINK_EXT = constant.Constant( 'GL_HISTOGRAM_SINK_EXT', 0x802D )
GL_MINMAX_EXT = constant.Constant( 'GL_MINMAX_EXT', 0x802E )
glget.addGLGetConstant( GL_MINMAX_EXT, (1,) )
GL_MINMAX_FORMAT_EXT = constant.Constant( 'GL_MINMAX_FORMAT_EXT', 0x802F )
GL_MINMAX_SINK_EXT = constant.Constant( 'GL_MINMAX_SINK_EXT', 0x8030 )
GL_TABLE_TOO_LARGE_EXT = constant.Constant( 'GL_TABLE_TOO_LARGE_EXT', 0x8031 )
glGetHistogramEXT = platform.createExtensionFunction(
'glGetHistogramEXT', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, constants.GLboolean, constants.GLenum, constants.GLenum, ctypes.c_void_p,),
doc = 'glGetHistogramEXT( GLenum(target), GLboolean(reset), GLenum(format), GLenum(type), c_void_p(values) ) -> None',
argNames = ('target', 'reset', 'format', 'type', 'values',),
)
glGetHistogramParameterfvEXT = platform.createExtensionFunction(
'glGetHistogramParameterfvEXT', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, constants.GLenum, arrays.GLfloatArray,),
doc = 'glGetHistogramParameterfvEXT( GLenum(target), GLenum(pname), GLfloatArray(params) ) -> None',
argNames = ('target', 'pname', 'params',),
)
glGetHistogramParameterivEXT = platform.createExtensionFunction(
'glGetHistogramParameterivEXT', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, constants.GLenum, arrays.GLintArray,),
doc = 'glGetHistogramParameterivEXT( GLenum(target), GLenum(pname), GLintArray(params) ) -> None',
argNames = ('target', 'pname', 'params',),
)
glGetMinmaxEXT = platform.createExtensionFunction(
'glGetMinmaxEXT', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, constants.GLboolean, constants.GLenum, constants.GLenum, ctypes.c_void_p,),
doc = 'glGetMinmaxEXT( GLenum(target), GLboolean(reset), GLenum(format), GLenum(type), c_void_p(values) ) -> None',
argNames = ('target', 'reset', 'format', 'type', 'values',),
)
glGetMinmaxParameterfvEXT = platform.createExtensionFunction(
'glGetMinmaxParameterfvEXT', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, constants.GLenum, arrays.GLfloatArray,),
doc = 'glGetMinmaxParameterfvEXT( GLenum(target), GLenum(pname), GLfloatArray(params) ) -> None',
argNames = ('target', 'pname', 'params',),
)
glGetMinmaxParameterivEXT = platform.createExtensionFunction(
'glGetMinmaxParameterivEXT', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, constants.GLenum, arrays.GLintArray,),
doc = 'glGetMinmaxParameterivEXT( GLenum(target), GLenum(pname), GLintArray(params) ) -> None',
argNames = ('target', 'pname', 'params',),
)
glHistogramEXT = platform.createExtensionFunction(
'glHistogramEXT', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, constants.GLsizei, constants.GLenum, constants.GLboolean,),
doc = 'glHistogramEXT( GLenum(target), GLsizei(width), GLenum(internalformat), GLboolean(sink) ) -> None',
argNames = ('target', 'width', 'internalformat', 'sink',),
)
glMinmaxEXT = platform.createExtensionFunction(
'glMinmaxEXT', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, constants.GLenum, constants.GLboolean,),
doc = 'glMinmaxEXT( GLenum(target), GLenum(internalformat), GLboolean(sink) ) -> None',
argNames = ('target', 'internalformat', 'sink',),
)
glResetHistogramEXT = platform.createExtensionFunction(
'glResetHistogramEXT', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum,),
doc = 'glResetHistogramEXT( GLenum(target) ) -> None',
argNames = ('target',),
)
glResetMinmaxEXT = platform.createExtensionFunction(
'glResetMinmaxEXT', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum,),
doc = 'glResetMinmaxEXT( GLenum(target) ) -> None',
argNames = ('target',),
)
def glInitHistogramEXT():
'''Return boolean indicating whether this extension is available'''
return extensions.hasGLExtension( EXTENSION_NAME )
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