You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
144 lines
5.1 KiB
Python
144 lines
5.1 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.
|
|
# ----------------------------------------------------------------------------
|
|
|
|
'''Information about version and extensions of current GLX implementation.
|
|
|
|
Usage::
|
|
|
|
from pyglet.gl import glx_info
|
|
|
|
if glx_info.have_extension('GLX_NV_float_buffer'):
|
|
# ...
|
|
|
|
Or, if using more than one display::
|
|
|
|
from pyglet.gl.glx_info import GLXInfo
|
|
|
|
info = GLXInfo(window._display)
|
|
if info.get_server_vendor() == 'ATI':
|
|
# ...
|
|
|
|
'''
|
|
|
|
__docformat__ = 'restructuredtext'
|
|
__version__ = '$Id: glx_info.py 1579 2008-01-15 14:47:19Z Alex.Holkner $'
|
|
|
|
from ctypes import *
|
|
|
|
from pyglet.gl.glx import *
|
|
from pyglet.gl.glx import Display
|
|
|
|
class GLXInfoException(Exception):
|
|
pass
|
|
|
|
class GLXInfo(object):
|
|
def __init__(self, display=None):
|
|
self.display = display
|
|
|
|
def set_display(self, display):
|
|
self.display = cast(pointer(display), POINTER(Display))
|
|
|
|
def check_display(self):
|
|
if not self.display:
|
|
raise GLXInfoException('No X11 display has been set yet.')
|
|
|
|
def have_version(self, major, minor=0):
|
|
self.check_display()
|
|
if not glXQueryExtension(self.display, None, None):
|
|
raise GLXInfoException('pyglet requires an X server with GLX')
|
|
|
|
server_version = self.get_server_version().split()[0]
|
|
client_version = self.get_client_version().split()[0]
|
|
|
|
server = [int(i) for i in server_version.split('.')]
|
|
client = [int(i) for i in client_version.split('.')]
|
|
return (tuple(server) >= (major, minor) and
|
|
tuple(client) >= (major, minor))
|
|
|
|
def get_server_vendor(self):
|
|
self.check_display()
|
|
return glXQueryServerString(self.display, 0, GLX_VENDOR)
|
|
|
|
def get_server_version(self):
|
|
# glXQueryServerString was introduced in GLX 1.1, so we need to use the
|
|
# 1.0 function here which queries the server implementation for its
|
|
# version.
|
|
self.check_display()
|
|
major = c_int()
|
|
minor = c_int()
|
|
if not glXQueryVersion(self.display, byref(major), byref(minor)):
|
|
raise GLXInfoException('Could not determine GLX server version')
|
|
return '%s.%s'%(major.value, minor.value)
|
|
|
|
def get_server_extensions(self):
|
|
self.check_display()
|
|
return glXQueryServerString(self.display, 0, GLX_EXTENSIONS).split()
|
|
|
|
def get_client_vendor(self):
|
|
self.check_display()
|
|
return glXGetClientString(self.display, GLX_VENDOR)
|
|
|
|
def get_client_version(self):
|
|
self.check_display()
|
|
return glXGetClientString(self.display, GLX_VERSION)
|
|
|
|
def get_client_extensions(self):
|
|
self.check_display()
|
|
return glXGetClientString(self.display, GLX_EXTENSIONS).split()
|
|
|
|
def get_extensions(self):
|
|
self.check_display()
|
|
return glXQueryExtensionsString(self.display, 0).split()
|
|
|
|
def have_extension(self, extension):
|
|
self.check_display()
|
|
if not self.have_version(1, 1):
|
|
return False
|
|
return extension in self.get_extensions()
|
|
|
|
# Single instance suitable for apps that use only a single display.
|
|
_glx_info = GLXInfo()
|
|
|
|
set_display = _glx_info.set_display
|
|
check_display = _glx_info.check_display
|
|
have_version = _glx_info.have_version
|
|
get_server_vendor = _glx_info.get_server_vendor
|
|
get_server_version = _glx_info.get_server_version
|
|
get_server_extensions = _glx_info.get_server_extensions
|
|
get_client_vendor = _glx_info.get_client_vendor
|
|
get_client_version = _glx_info.get_client_version
|
|
get_client_extensions = _glx_info.get_client_extensions
|
|
get_extensions = _glx_info.get_extensions
|
|
have_extension = _glx_info.have_extension
|