142 lines
3.9 KiB
C
142 lines
3.9 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 "gdi.h"
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#include "gdi_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(wgl);
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static HDC default_hdc = 0;
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/* We route all wgl functions from opengl32.dll through gdi32.dll to
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* the display driver. Various wgl calls have a hDC as one of their parameters.
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* Using DC_GetDCPtr we get access to the functions exported by the driver.
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* Some functions don't receive a hDC. This function creates a global hdc and
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* if there's already a global hdc, it returns it.
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*/
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static DC* OPENGL_GetDefaultDC()
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{
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if(!default_hdc)
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default_hdc = CreateDCA("DISPLAY", NULL, NULL, NULL);
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return DC_GetDCPtr(default_hdc);
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}
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/***********************************************************************
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* wglCreateContext (OPENGL32.@)
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*/
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HGLRC WINAPI wglCreateContext(HDC hdc)
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{
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HGLRC ret = 0;
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DC * dc = DC_GetDCPtr( hdc );
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TRACE("(%p)\n",hdc);
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if (!dc) return 0;
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if (!dc->funcs->pwglCreateContext) FIXME(" :stub\n");
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else ret = dc->funcs->pwglCreateContext(dc->physDev);
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GDI_ReleaseObj( hdc );
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return ret;
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}
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/***********************************************************************
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* wglMakeCurrent (OPENGL32.@)
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*/
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BOOL WINAPI wglMakeCurrent(HDC hdc, HGLRC hglrc)
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{
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BOOL ret = FALSE;
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DC * dc = NULL;
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/* When the context hglrc is NULL, the HDC is ignored and can be NULL.
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* In that case use the global hDC to get access to the driver. */
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if(hglrc == NULL)
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dc = OPENGL_GetDefaultDC();
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else
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dc = DC_GetDCPtr( hdc );
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TRACE("hdc: (%p), hglrc: (%p)\n", hdc, hglrc);
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if (!dc) return FALSE;
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if (!dc->funcs->pwglMakeCurrent) FIXME(" :stub\n");
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else ret = dc->funcs->pwglMakeCurrent(dc->physDev,hglrc);
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if(hglrc == NULL)
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GDI_ReleaseObj(default_hdc);
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else
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GDI_ReleaseObj(hdc);
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return ret;
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}
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/***********************************************************************
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* wglUseFontBitmapsA (OPENGL32.@)
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*/
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BOOL WINAPI wglUseFontBitmapsA(HDC hdc, DWORD first, DWORD count, DWORD listBase)
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{
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BOOL ret = FALSE;
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DC * dc = DC_GetDCPtr( hdc );
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TRACE("(%p, %ld, %ld, %ld)\n", hdc, first, count, listBase);
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if (!dc) return FALSE;
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if (!dc->funcs->pwglUseFontBitmapsA) FIXME(" :stub\n");
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else ret = dc->funcs->pwglUseFontBitmapsA(dc->physDev, first, count, listBase);
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GDI_ReleaseObj( hdc);
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return ret;
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}
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/***********************************************************************
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* wglUseFontBitmapsW (OPENGL32.@)
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*/
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BOOL WINAPI wglUseFontBitmapsW(HDC hdc, DWORD first, DWORD count, DWORD listBase)
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{
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BOOL ret = FALSE;
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DC * dc = DC_GetDCPtr( hdc );
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TRACE("(%p, %ld, %ld, %ld)\n", hdc, first, count, listBase);
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if (!dc) return FALSE;
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if (!dc->funcs->pwglUseFontBitmapsW) FIXME(" :stub\n");
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else ret = dc->funcs->pwglUseFontBitmapsW(dc->physDev, first, count, listBase);
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GDI_ReleaseObj( hdc);
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return ret;
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}
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