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'''OpenGL extension EXT.window_rectangles
This module customises the behaviour of the
OpenGL.raw.GL.EXT.window_rectangles to provide a more
Python-friendly API
Overview (from the spec)
This extension provides additional orthogonally aligned "window
rectangles" specified in window-space coordinates that restrict
rasterization of all primitive types (geometry, images, paths)
and framebuffer clears.
When rendering to the framebuffer of an on-screen window, these
window rectangles are ignored so these window rectangles apply to
rendering to non-zero framebuffer objects only.
From zero to an implementation-dependent limit (specified by
GL_MAX_WINDOW_RECTANGLES_EXT) number of window rectangles can be
operational at once. When one or more window rectangles are active,
rasterized fragments can either survive if the fragment is within
any of the operational window rectangles (GL_INCLUSIVE_EXT mode) or
be rejected if the fragment is within any of the operational window
rectangles (GL_EXCLUSIVE_EXT mode).
These window rectangles operate orthogonally to the existing scissor
test functionality.
This extension has specification language for both OpenGL and ES so
EXT_window_rectangles can be implemented and advertised for either
or both API contexts.
The official definition of this extension is available here:
http://www.opengl.org/registry/specs/EXT/window_rectangles.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.EXT.window_rectangles import *
from OpenGL.raw.GL.EXT.window_rectangles import _EXTENSION_NAME
def glInitWindowRectanglesEXT():
'''Return boolean indicating whether this extension is available'''
from OpenGL import extensions
return extensions.hasGLExtension( _EXTENSION_NAME )
# INPUT glWindowRectanglesEXT.box size not checked against 'count'
glWindowRectanglesEXT=wrapper.wrapper(glWindowRectanglesEXT).setInputArraySize(
'box', None
)
### END AUTOGENERATED SECTION
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