Learning_GTK4_tree/gdk/win32/gdkglcontext-win32-wgl-priv...

57 lines
1.9 KiB
C

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