/usr/lib/python2.7/dist-packages/pyglet/gl/wgl_info.py is in python-pyglet 1.1.4.dfsg-3.
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# pyglet
# Copyright (c) 2006-2008 Alex Holkner
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of pyglet nor the names of its
# contributors may be used to endorse or promote products
# derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# ----------------------------------------------------------------------------
'''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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