/*

SDL - Simple DirectMedia Layer

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, write to the Free

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Sam Lantinga

*/

#ifdef SAVE_RCSID

static char rcsid =

"@(#) $Id$";

#endif

/* WGL implementation of SDL OpenGL support */

#include "SDL_sysvideo.h"

struct SDL_PrivateGLData {

int gl_active; /* to stop switching drivers while we have a valid context */

#ifdef HAVE_OPENGL

PIXELFORMATDESCRIPTOR GL_pfd;

HDC GL_hdc;

HGLRC GL_hrc;

void * (WINAPI *wglGetProcAddress)(const char *proc);

HGLRC (WINAPI *wglCreateContext)(HDC hdc);

BOOL (WINAPI *wglDeleteContext)(HGLRC hglrc);

BOOL (WINAPI *wglMakeCurrent)(HDC hdc, HGLRC hglrc);

#endif /* HAVE_OPENGL */

};

/* Old variable names */

#define gl_active (this->gl_data->gl_active)

#define GL_pfd (this->gl_data->GL_pfd)

#define GL_hdc (this->gl_data->GL_hdc)

#define GL_hrc (this->gl_data->GL_hrc)

/* OpenGL functions */

extern int WIN_GL_SetupWindow(_THIS);

extern void WIN_GL_ShutDown(_THIS);

#ifdef HAVE_OPENGL

extern int WIN_GL_MakeCurrent(_THIS);

extern int WIN_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value);

extern void WIN_GL_SwapBuffers(_THIS);

extern void WIN_GL_UnloadLibrary(_THIS);

extern int WIN_GL_LoadLibrary(_THIS, const char* path);

extern void *WIN_GL_GetProcAddress(_THIS, const char* proc);

#endif