'''OpenGL extension AMD.query_buffer_object

This module customises the behaviour of the 
OpenGL.raw.GL.AMD.query_buffer_object to provide a more 
Python-friendly API

Overview (from the spec)
	
	Statistics about the operation of the OpenGL pipeline, such as the number
	of samples that passed the depth test, the elapsed time between two events
	or the number of vertices written to a transform feedback buffer may
	be retrieved from the GL through query objects. The current value of a
	query object may be retrieved by the application through the OpenGL API.
	Should the result returned by the API be required for use in a shader,
	it must be passed back to the GL via a program uniform or some other
	mechanism. This requires a round-trip from the GPU to the CPU and back.
	
	This extension introduces a mechanism whereby the current value of a query
	result may be retrieved into a buffer object instead of client memory.
	This allows the query result to be made available to a shader without a
	round-trip to the CPU for example by subsequently using the buffer object
	as a uniform buffer, texture buffer or other data store visible to the
	shader. This functionality may also be used to place the results of
	many query objects into a single, large buffer and then map or otherwise
	read back the entire buffer at a later point in time, avoiding a per-query
	CPU-GPU synchronization event.
	
	The result of any query object type supported by the GL implementation
	may be retrieved into a buffer object. The implementation will determine
	the most efficient method of copying the query result to the buffer.

The official definition of this extension is available here:
http://www.opengl.org/registry/specs/AMD/query_buffer_object.txt
'''
from OpenGL import platform, constants, constant, arrays
from OpenGL import extensions, wrapper
from OpenGL.GL import glget
import ctypes
from OpenGL.raw.GL.AMD.query_buffer_object import *
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