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# -*- coding: utf-8 -*-
# Copyright (c) Vispy Development Team. All Rights Reserved.
# Distributed under the (new) BSD License. See LICENSE.txt for more info.
"""GL ES 2.0 API.
On Windows implemented via Angle (i.e translated to DirectX).
"""
import sys
import os
import ctypes
from . import _copy_gl_functions
from ._constants import * # noqa
# Ctypes stuff
if hasattr(ctypes, 'TEST_DLL'):
# Load dummy lib
_lib = ctypes.TEST_DLL.LoadLibrary('')
elif sys.platform.startswith('win'):
raise RuntimeError('ES 2.0 is not available on Windows yet')
# todo: were are we going to put our libs?
dirname = r'C:\Users\Almar\AppData\Local\Chromium\Application\34.0.1790.0'
# Load dependency (so that libGLESv2 can find it
fname = dirname + r'\d3dcompiler_46.dll'
_libdum = ctypes.windll.LoadLibrary(fname)
# Load GL ES 2.0 lib (Angle)
fname = dirname + r'\libGLESv2.dll'
_lib = ctypes.windll.LoadLibrary(fname)
elif sys.platform.startswith('linux'):
es2_file = None
# Load from env
if 'ES2_LIBRARY' in os.environ: # todo: is this the correct name?
if os.path.exists(os.environ['ES2_LIBRARY']):
es2_file = os.path.realpath(os.environ['ES2_LIBRARY'])
# Else, try to find it
if es2_file is None:
es2_file = ctypes.util.find_library('GLESv2')
# Else, we failed and exit
if es2_file is None:
raise OSError('GL ES 2.0 library not found')
# Load it
_lib = ctypes.CDLL(es2_file)
elif sys.platform.startswith('darwin'):
raise RuntimeError('ES 2.0 is not available on OSX yet')
else:
raise RuntimeError('Unknown platform: %s' % sys.platform)
# Inject
from . import _es2 # noqa
_copy_gl_functions(_es2, globals())
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