dlls/opengl32/opengl_ext.h

   1 /* Typedefs for extensions loading
   2
   3      Copyright (c) 2000 Lionel Ulmer
   4 *
   5 * This library is free software; you can redistribute it and/or
   6 * modify it under the terms of the GNU Lesser General Public
   7 * License as published by the Free Software Foundation; either
   8 * version 2.1 of the License, or (at your option) any later version.
   9 *
  10 * This library is distributed in the hope that it will be useful,
  11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 * Lesser General Public License for more details.
  14 *
  15 * You should have received a copy of the GNU Lesser General Public
  16 * License along with this library; if not, write to the Free Software
  17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18 */
  19 #ifndef __DLLS_OPENGL32_OPENGL_EXT_H
  20 #define __DLLS_OPENGL32_OPENGL_EXT_H
  21
  22 #include "windef.h"
  23 #include "winbase.h"
  24 #include "wingdi.h"
  25 #include "wine/wgl.h"
  26 #include "wine/wgl_driver.h"
  27
  28 typedef struct {
  29   const char  *name;     /* name of the extension */
  30   const char  *extension; /* name of the GL/WGL extension */
  31   void  *func;     /* pointer to the Wine function for this extension */
  32 } OpenGL_extension;
  33
  34 extern const OpenGL_extension extension_registry[] DECLSPEC_HIDDEN;
  35 extern const int extension_registry_size DECLSPEC_HIDDEN;
  36 extern struct opengl_funcs null_opengl_funcs DECLSPEC_HIDDEN;
  37
  38 static inline struct opengl_funcs *get_dc_funcs( HDC hdc )
  39 {
  40     struct opengl_funcs *funcs = __wine_get_wgl_driver( hdc, WINE_WGL_DRIVER_VERSION );
  41     if (!funcs) SetLastError( ERROR_INVALID_HANDLE );
  42     else if (funcs == (void *)-1) funcs = &null_opengl_funcs;
  43     return funcs;
  44 }
  45
  46 #endif /* __DLLS_OPENGL32_OPENGL_EXT_H */