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'''OpenGL extension ATI.element_array
Overview (from the spec)
This extension provides a mechanism for an application to create
an array of index data for use in specifying geometric primitives.
This extension is most useful when used in conjunction with the
ATI_vertex_array_object extension. ATI_vertex_array_object
provides an interface for storing vertex array data in persistent,
hardware-addressable memory. In cases where large amounts of
vertex data are in use, the index data used to construct
primitives (typically as passed to the GL through DrawElements)
can impose a significant bandwidth burden. ATI_element_array
allows the application to specify independent arrays of elements,
which can then be cached using ATI_vertex_array_object.
The official definition of this extension is available here:
http://oss.sgi.com/projects/ogl-sample/registry/ATI/element_array.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_ATI_element_array'
GL_ELEMENT_ARRAY_ATI = constant.Constant( 'GL_ELEMENT_ARRAY_ATI', 0x8768 )
GL_ELEMENT_ARRAY_TYPE_ATI = constant.Constant( 'GL_ELEMENT_ARRAY_TYPE_ATI', 0x8769 )
glget.addGLGetConstant( GL_ELEMENT_ARRAY_TYPE_ATI, (1,) )
GL_ELEMENT_ARRAY_POINTER_ATI = constant.Constant( 'GL_ELEMENT_ARRAY_POINTER_ATI', 0x876A )
glElementPointerATI = platform.createExtensionFunction(
'glElementPointerATI', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, ctypes.c_void_p,),
doc = 'glElementPointerATI( GLenum(type), c_void_p(pointer) ) -> None',
argNames = ('type', 'pointer',),
)
glDrawElementArrayATI = platform.createExtensionFunction(
'glDrawElementArrayATI', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, constants.GLsizei,),
doc = 'glDrawElementArrayATI( GLenum(mode), GLsizei(count) ) -> None',
argNames = ('mode', 'count',),
)
glDrawRangeElementArrayATI = platform.createExtensionFunction(
'glDrawRangeElementArrayATI', dll=platform.GL,
extension=EXTENSION_NAME,
resultType=None,
argTypes=(constants.GLenum, constants.GLuint, constants.GLuint, constants.GLsizei,),
doc = 'glDrawRangeElementArrayATI( GLenum(mode), GLuint(start), GLuint(end), GLsizei(count) ) -> None',
argNames = ('mode', 'start', 'end', 'count',),
)
def glInitElementArrayATI():
'''Return boolean indicating whether this extension is available'''
return extensions.hasGLExtension( EXTENSION_NAME )
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