# ----------------------------------------------------------------------------
# pyglet
# Copyright (c) 2006-2008 Alex Holkner
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#
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# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
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# * Redistributions in binary form must reproduce the above copyright
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#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# ----------------------------------------------------------------------------
'''Cached information about version and extensions of current WGL
implementation.
'''
__docformat__ = 'restructuredtext'
__version__ = '$Id: glx_info.py 615 2007-02-07 13:17:05Z Alex.Holkner $'
from ctypes import *
import warnings
from pyglet.gl.lib import MissingFunctionException
from pyglet.gl.gl import *
from pyglet.gl import gl_info
from pyglet.gl.wgl import *
from pyglet.gl.wglext_arb import *
class WGLInfoException(Exception):
pass
class WGLInfo(object):
def get_extensions(self):
if not gl_info.have_context():
warnings.warn("Can't query WGL until a context is created.")
return []
try:
return wglGetExtensionsStringEXT().split()
except MissingFunctionException:
return cast(glGetString(GL_EXTENSIONS), c_char_p).value.split()
def have_extension(self, extension):
return extension in self.get_extensions()
_wgl_info = WGLInfo()
get_extensions = _wgl_info.get_extensions
have_extension = _wgl_info.have_extension
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