Saran Tunyasuvunakool
81c5e61b1e
Although the path doesn't exist on disk, dlopen seems to be previously redirecting to the correct file, but this stopped working in macOS 14. PiperOrigin-RevId: 567684115 Change-Id: I21894302e87803d06bfd27ba123eacbdfec0ec56
143 lines
5.1 KiB
Python
143 lines
5.1 KiB
Python
# Copyright 2023 DeepMind Technologies Limited
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
# ==============================================================================
|
|
"""Bindings for Apple CGL."""
|
|
|
|
import ctypes
|
|
import enum
|
|
|
|
_CGL = ctypes.CDLL('/System/Library/Frameworks/OpenGL.framework/OpenGL')
|
|
|
|
CGLContextObj = ctypes.c_void_p
|
|
CGLPixelFormatObj = ctypes.c_void_p
|
|
GLint = ctypes.c_int
|
|
|
|
_CGLChoosePixelFormat = _CGL.CGLChoosePixelFormat
|
|
_CGLChoosePixelFormat.argtypes = (
|
|
ctypes.POINTER(ctypes.c_int),
|
|
ctypes.POINTER(CGLPixelFormatObj),
|
|
ctypes.POINTER(GLint),
|
|
)
|
|
|
|
_CGLCreateContext = _CGL.CGLCreateContext
|
|
_CGLCreateContext.argtypes = (
|
|
CGLPixelFormatObj,
|
|
ctypes.c_int,
|
|
CGLContextObj,
|
|
)
|
|
|
|
_CGLErrorString = _CGL.CGLErrorString
|
|
_CGLErrorString.restype = ctypes.c_char_p
|
|
_CGLErrorString.argtype = (ctypes.c_int,)
|
|
|
|
_CGLLockContext = _CGL.CGLLockContext
|
|
_CGLLockContext.argtypes = (CGLContextObj,)
|
|
|
|
_CGLReleaseContext = _CGL.CGLReleaseContext
|
|
_CGLReleaseContext.restype = None
|
|
_CGLReleaseContext.argtypes = (CGLContextObj,)
|
|
|
|
_CGLReleasePixelFormat = _CGL.CGLReleasePixelFormat
|
|
_CGLReleasePixelFormat.restype = None
|
|
_CGLReleasePixelFormat.argtypes = (CGLPixelFormatObj,)
|
|
|
|
_CGLSetCurrentContext = _CGL.CGLSetCurrentContext
|
|
_CGLSetCurrentContext.argtypes = (CGLContextObj,)
|
|
|
|
_CGLUnlockContext = _CGL.CGLUnlockContext
|
|
_CGLUnlockContext.argtypes = (CGLContextObj,)
|
|
|
|
|
|
# pylint: disable=invalid-name
|
|
|
|
|
|
class CGLOpenGLProfile(enum.IntEnum):
|
|
CGLOGLPVersion_Legacy = 0x1000 # renderer compatible with GL1.0
|
|
CGLOGLPVersion_3_2_Core = 0x3200 # renderer capable of GL3.2 or later
|
|
CGLOGLPVersion_GL3_Core = 0x3200 # renderer capable of GL3.2 or later
|
|
CGLOGLPVersion_GL4_Core = 0x4100 # renderer capable of GL4.1 or later
|
|
|
|
|
|
class CGLPixelFormatAttribute(enum.IntEnum):
|
|
"""CGLPixelFormatAttribute enum values."""
|
|
CGLPFAAllRenderers = 1 # choose from all available renderers
|
|
CGLPFATripleBuffer = 3 # choose a triple buffered pixel format
|
|
CGLPFADoubleBuffer = 5 # choose a double buffered pixel format
|
|
CGLPFAColorSize = 8 # number of color buffer bits
|
|
CGLPFAAlphaSize = 11 # number of alpha component bits
|
|
CGLPFADepthSize = 12 # number of depth buffer bits
|
|
CGLPFAStencilSize = 13 # number of stencil buffer bits
|
|
CGLPFAMinimumPolicy = 51 # never choose smaller buffers than requested
|
|
CGLPFAMaximumPolicy = 52 # choose largest buffers of type requested
|
|
CGLPFASampleBuffers = 55 # number of multi sample buffers
|
|
CGLPFASample = 56 # number of samples per multi sample buffer
|
|
CGLPFAColorFloat = 58 # color buffers store floating point pixels
|
|
CGLPFAMultisample = 59 # choose multisampling
|
|
CGLPFASupersample = 60 # choose supersampling
|
|
CGLPFASampleAlpha = 61 # request alpha filtering
|
|
CGLPFARendererID = 70 # request renderer by ID
|
|
CGLPFANoRecovery = 72 # disable all failure recovery systems
|
|
CGLPFAAccelerated = 73 # choose a hardware accelerated renderer
|
|
CGLPFAClosestPolicy = 74 # choose the closest color buffer to request
|
|
CGLPFABackingStore = 76 # back buffer contents are valid after swap
|
|
CGLPFABackingVolatile = 77 # back buffer contents are volatile after swap
|
|
CGLPFADisplayMask = 84 # mask limiting supported displays
|
|
CGLPFAAllowOfflineRenderers = 96 # show offline renderers in pixel formats
|
|
CGLPFAAcceleratedCompute = 97 # choose a hardware accelerated compute device
|
|
CGLPFAOpenGLProfile = 99 # specify an OpenGL Profile to use
|
|
CGLPFASupportsAutomaticGraphicsSwitching = 101 # responds to display changes
|
|
CGLPFAVirtualScreenCount = 128 # number of virtual screens in this format
|
|
|
|
# Note: the following attributes are deprecated in Core Profile
|
|
CGLPFAAuxBuffers = 7 # number of aux buffers
|
|
CGLPFAAccumSize = 14 # number of accum buffer bits
|
|
CGLPFAAuxDepthStencil = 57 # each aux buffer has its own depth stencil
|
|
|
|
CGLPFAStereo = 6
|
|
CGLPFAOffScreen = 53
|
|
CGLPFAWindow = 80
|
|
CGLPFACompliant = 83
|
|
CGLPFAPBuffer = 90
|
|
CGLPFARemotePBuffer = 91
|
|
|
|
CGLPFASingleRenderer = 71
|
|
CGLPFARobust = 75
|
|
CGLPFAMPSafe = 78
|
|
CGLPFAMultiScreen = 81
|
|
CGLPFAFullScreen = 54
|
|
|
|
|
|
# pylint: enable=invalid-name
|
|
|
|
|
|
class CGLError(RuntimeError): # pylint: disable=g-bad-exception-name
|
|
pass
|
|
|
|
|
|
def _make_checked(func):
|
|
def checked_func(*args):
|
|
err = func(*args)
|
|
if err:
|
|
raise CGLError(_CGLErrorString(err).decode())
|
|
return checked_func
|
|
|
|
|
|
CGLChoosePixelFormat = _make_checked(_CGLChoosePixelFormat)
|
|
CGLCreateContext = _make_checked(_CGLCreateContext)
|
|
CGLLockContext = _make_checked(_CGLLockContext)
|
|
CGLReleaseContext = _CGLReleaseContext
|
|
CGLReleasePixelFormat = _CGLReleasePixelFormat
|
|
CGLSetCurrentContext = _make_checked(_CGLSetCurrentContext)
|
|
CGLUnlockContext = _make_checked(_CGLUnlockContext)
|