| /* |
| * OpenGL function forwarding to the display driver |
| * |
| * Copyright (c) 1999 Lionel Ulmer |
| * Copyright (c) 2005 Raphael Junqueira |
| * Copyright (c) 2006 Roderick Colenbrander |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #include "config.h" |
| #include "wine/port.h" |
| |
| #include <stdarg.h> |
| #include <string.h> |
| #include <stdlib.h> |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "wingdi.h" |
| #include "winerror.h" |
| #include "winternl.h" |
| #include "winnt.h" |
| #include "gdi_private.h" |
| |
| |
| static const WCHAR opengl32W[] = {'o','p','e','n','g','l','3','2','.','d','l','l',0}; |
| static HMODULE opengl32; |
| static INT (WINAPI *wglChoosePixelFormat)(HDC,const PIXELFORMATDESCRIPTOR *); |
| static INT (WINAPI *wglDescribePixelFormat)(HDC,INT,UINT,PIXELFORMATDESCRIPTOR*); |
| static INT (WINAPI *wglGetPixelFormat)(HDC); |
| static BOOL (WINAPI *wglSetPixelFormat)(HDC,INT,const PIXELFORMATDESCRIPTOR*); |
| static BOOL (WINAPI *wglSwapBuffers)(HDC); |
| |
| /*********************************************************************** |
| * __wine_get_wgl_driver (GDI32.@) |
| */ |
| struct opengl_funcs * CDECL __wine_get_wgl_driver( HDC hdc, UINT version ) |
| { |
| struct opengl_funcs *ret = NULL; |
| DC * dc = get_dc_ptr( hdc ); |
| |
| if (dc) |
| { |
| PHYSDEV physdev = GET_DC_PHYSDEV( dc, wine_get_wgl_driver ); |
| ret = physdev->funcs->wine_get_wgl_driver( physdev, version ); |
| release_dc_ptr( dc ); |
| } |
| return ret; |
| } |
| |
| /****************************************************************************** |
| * ChoosePixelFormat (GDI32.@) |
| */ |
| INT WINAPI ChoosePixelFormat( HDC hdc, const PIXELFORMATDESCRIPTOR *pfd ) |
| { |
| if (!wglChoosePixelFormat) |
| { |
| if (!opengl32) opengl32 = LoadLibraryW( opengl32W ); |
| if (!(wglChoosePixelFormat = (void *)GetProcAddress( opengl32, "wglChoosePixelFormat" ))) |
| return 0; |
| } |
| return wglChoosePixelFormat( hdc, pfd ); |
| } |
| |
| /****************************************************************************** |
| * DescribePixelFormat (GDI32.@) |
| */ |
| INT WINAPI DescribePixelFormat( HDC hdc, INT fmt, UINT size, PIXELFORMATDESCRIPTOR *pfd ) |
| { |
| if (!wglDescribePixelFormat) |
| { |
| if (!opengl32) opengl32 = LoadLibraryW( opengl32W ); |
| if (!(wglDescribePixelFormat = (void *)GetProcAddress( opengl32, "wglDescribePixelFormat" ))) |
| return 0; |
| } |
| return wglDescribePixelFormat( hdc, fmt, size, pfd ); |
| } |
| |
| /****************************************************************************** |
| * GetPixelFormat (GDI32.@) |
| */ |
| INT WINAPI GetPixelFormat( HDC hdc ) |
| { |
| if (!wglGetPixelFormat) |
| { |
| if (!opengl32) opengl32 = LoadLibraryW( opengl32W ); |
| if (!(wglGetPixelFormat = (void *)GetProcAddress( opengl32, "wglGetPixelFormat" ))) |
| return 0; |
| } |
| return wglGetPixelFormat( hdc ); |
| } |
| |
| /****************************************************************************** |
| * SetPixelFormat (GDI32.@) |
| */ |
| BOOL WINAPI SetPixelFormat( HDC hdc, INT fmt, const PIXELFORMATDESCRIPTOR *pfd ) |
| { |
| if (!wglSetPixelFormat) |
| { |
| if (!opengl32) opengl32 = LoadLibraryW( opengl32W ); |
| if (!(wglSetPixelFormat = (void *)GetProcAddress( opengl32, "wglSetPixelFormat" ))) |
| return FALSE; |
| } |
| return wglSetPixelFormat( hdc, fmt, pfd ); |
| } |
| |
| /****************************************************************************** |
| * SwapBuffers (GDI32.@) |
| */ |
| BOOL WINAPI SwapBuffers( HDC hdc ) |
| { |
| if (!wglSwapBuffers) |
| { |
| if (!opengl32) opengl32 = LoadLibraryW( opengl32W ); |
| if (!(wglSwapBuffers = (void *)GetProcAddress( opengl32, "wglSwapBuffers" ))) |
| return FALSE; |
| } |
| return wglSwapBuffers( hdc ); |
| } |