heroes-renaissance/pyglet/gl/lib_glx.py
2008-11-23 21:07:47 +01:00

92 lines
3.5 KiB
Python

# ----------------------------------------------------------------------------
# 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.
# ----------------------------------------------------------------------------
'''
'''
__docformat__ = 'restructuredtext'
__version__ = '$Id: lib_glx.py 1579 2008-01-15 14:47:19Z Alex.Holkner $'
from ctypes import *
import pyglet.lib
from pyglet.gl.lib import missing_function, decorate_function
__all__ = ['link_GL', 'link_GLU', 'link_GLX']
gl_lib = pyglet.lib.load_library('GL')
glu_lib = pyglet.lib.load_library('GLU')
# Look for glXGetProcAddressARB extension, use it as fallback (for
# ATI fglrx and DRI drivers).
try:
glXGetProcAddressARB = getattr(gl_lib, 'glXGetProcAddressARB')
glXGetProcAddressARB.restype = POINTER(CFUNCTYPE(None))
glXGetProcAddressARB.argtypes = [POINTER(c_ubyte)]
_have_getprocaddress = True
except AttributeError:
_have_get_procaddress = False
def link_GL(name, restype, argtypes, requires=None, suggestions=None):
try:
func = getattr(gl_lib, name)
func.restype = restype
func.argtypes = argtypes
decorate_function(func, name)
return func
except AttributeError, e:
if _have_getprocaddress:
# Fallback if implemented but not in ABI
bname = cast(pointer(create_string_buffer(name)), POINTER(c_ubyte))
addr = glXGetProcAddressARB(bname)
if addr:
ftype = CFUNCTYPE(*((restype,) + tuple(argtypes)))
func = cast(addr, ftype)
decorate_function(func, name)
return func
return missing_function(name, requires, suggestions)
link_GLX = link_GL
def link_GLU(name, restype, argtypes, requires=None, suggestions=None):
try:
func = getattr(glu_lib, name)
func.restype = restype
func.argtypes = argtypes
decorate_function(func, name)
return func
except AttributeError, e:
return missing_function(name, requires, suggestions)