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'''OpenGL extension SGIX.depth_pass_instrument
This module customises the behaviour of the
OpenGL.raw.GL.SGIX.depth_pass_instrument to provide a more
Python-friendly API
Overview (from the spec)
This extension defines an instrument that uses the API defined in
SGIX_instruments. The instrument specified by this extension is a
counter of the number of fragments which passed the Z test during
rasterization. The maximum value of the counter is an
implementation-dependent constant.
Some systems may maintain counters on different parts of the
system. For example, a system with a frame buffer distributed
across multiple chips may maintain a count of the fragments which
passed the depth test on each individual chip. In this extension,
a queriable constant is defined that indicates the number of
responses to expect when a measurement is taken. This
mechanism allows GL implementations to be as efficient as possible.
The official definition of this extension is available here:
http://www.opengl.org/registry/specs/SGIX/depth_pass_instrument.txt
'''
from OpenGL import platform, constant, arrays
from OpenGL import extensions, wrapper
import ctypes
from OpenGL.raw.GL import _types, _glgets
from OpenGL.raw.GL.SGIX.depth_pass_instrument import *
from OpenGL.raw.GL.SGIX.depth_pass_instrument import _EXTENSION_NAME
def glInitDepthPassInstrumentSGIX():
'''Return boolean indicating whether this extension is available'''
from OpenGL import extensions
return extensions.hasGLExtension( _EXTENSION_NAME )
### END AUTOGENERATED SECTION
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