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627ee674e5
We might be dealing with GL contexts from different threads, which have more gotchas when we are using libepoxy, so in case the function pointers for these are invalidated by wglMakeCurrent() calls outside of GTK/GDK, such as in GstGL, we want to use these functions that are directly linked to opengl32.dll provided by the system/ICD, by linking to opengl32.lib. This will ensure that we will indeed call the "correct" wgl* functions that we need. This should help fix issue #5685.
57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/* GDK - The GIMP Drawing Kit
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*
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* gdkglcontext-win32-wgl-private.c: Win32 specific OpenGL wrappers
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*
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* Copyright © 2023 Chun-wei Fan
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* These wrapper functions are used when we don't want to use the wgl*() core functions
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* that we acquire via libepoxy (such as when we are disposing the Gdk(W)GLContext from,
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* different threads, so for these calls, we are actually linking to the system's/ICD
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* opengl32.dll directly, so that we are guaranteed that the "right" versions of these
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* WGL calls are carried out. This must be a separate source file because we can't include
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* the system's GL/gl.h with epoxy/(w)gl.h together in a single source file. We should not
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* need to use these when we are creating/initializing a WGL context in GDK, since we should
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* be in the same thread at this point.
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*/
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#define DONT_INCLUDE_LIBEPOXY
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <GL/gl.h>
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#include "gdkglcontext-win32.h"
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void
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gdk_win32_private_wglDeleteContext (HGLRC hglrc)
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{
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wglDeleteContext (hglrc);
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}
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HGLRC
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gdk_win32_private_wglGetCurrentContext (void)
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{
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return wglGetCurrentContext ();
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}
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BOOL
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gdk_win32_private_wglMakeCurrent (HDC hdc,
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HGLRC hglrc)
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{
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return wglMakeCurrent (hdc, hglrc);
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}
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