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