/*

    SDL - Simple DirectMedia Layer

    Copyright (C) 1997-2006 Sam Lantinga

    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

    Sam Lantinga

    slouken@libsdl.org

*/

#include "SDL_config.h"

#ifndef _SDL_win32opengl_h

#define _SDL_win32opengl_h

#if SDL_VIDEO_OPENGL_WGL

struct SDL_GLDriverData

{

    int initialized;

    int WGL_ARB_pixel_format;

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

      HGLRC(WINAPI * wglCreateContext) (HDC hdc);

      BOOL(WINAPI * wglDeleteContext) (HGLRC hglrc);

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

      BOOL(WINAPI * wglChoosePixelFormatARB) (HDC hdc,

                                              const int *piAttribIList,

                                              const FLOAT * pfAttribFList,

                                              UINT nMaxFormats,

                                              int *piFormats,

                                              UINT * nNumFormats);

      BOOL(WINAPI * wglGetPixelFormatAttribivARB) (HDC hdc, int iPixelFormat,

                                                   int iLayerPlane,

                                                   UINT nAttributes,

                                                   const int *piAttributes,

                                                   int *piValues);

    void (WINAPI * wglSwapIntervalEXT) (int interval);

    int (WINAPI * wglGetSwapIntervalEXT) (void);

};

/* OpenGL functions */

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

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

extern int WIN_GL_SetupWindow(_THIS, SDL_Window * window);

extern void WIN_GL_CleanupWindow(_THIS, SDL_Window * window);

extern SDL_GLContext WIN_GL_CreateContext(_THIS, SDL_Window * window);

extern int WIN_GL_MakeCurrent(_THIS, SDL_Window * window,

                              SDL_GLContext context);

extern int WIN_GL_SetSwapInterval(_THIS, int interval);

extern int WIN_GL_GetSwapInterval(_THIS);

extern void WIN_GL_SwapWindow(_THIS, SDL_Window * window);

extern void WIN_GL_DeleteContext(_THIS, SDL_GLContext context);

#ifndef WGL_ARB_pixel_format

#define WGL_NUMBER_PIXEL_FORMATS_ARB   0x2000

#define WGL_DRAW_TO_WINDOW_ARB         0x2001

#define WGL_DRAW_TO_BITMAP_ARB         0x2002

#define WGL_ACCELERATION_ARB           0x2003

#define WGL_NEED_PALETTE_ARB           0x2004

#define WGL_NEED_SYSTEM_PALETTE_ARB    0x2005

#define WGL_SWAP_LAYER_BUFFERS_ARB     0x2006

#define WGL_SWAP_METHOD_ARB            0x2007

#define WGL_NUMBER_OVERLAYS_ARB        0x2008

#define WGL_NUMBER_UNDERLAYS_ARB       0x2009

#define WGL_TRANSPARENT_ARB            0x200A

#define WGL_TRANSPARENT_RED_VALUE_ARB  0x2037

#define WGL_TRANSPARENT_GREEN_VALUE_ARB 0x2038

#define WGL_TRANSPARENT_BLUE_VALUE_ARB 0x2039

#define WGL_TRANSPARENT_ALPHA_VALUE_ARB 0x203A

#define WGL_TRANSPARENT_INDEX_VALUE_ARB 0x203B

#define WGL_SHARE_DEPTH_ARB            0x200C

#define WGL_SHARE_STENCIL_ARB          0x200D

#define WGL_SHARE_ACCUM_ARB            0x200E

#define WGL_SUPPORT_GDI_ARB            0x200F

#define WGL_SUPPORT_OPENGL_ARB         0x2010

#define WGL_DOUBLE_BUFFER_ARB          0x2011

#define WGL_STEREO_ARB                 0x2012

#define WGL_PIXEL_TYPE_ARB             0x2013

#define WGL_COLOR_BITS_ARB             0x2014

#define WGL_RED_BITS_ARB               0x2015

#define WGL_RED_SHIFT_ARB              0x2016

#define WGL_GREEN_BITS_ARB             0x2017

#define WGL_GREEN_SHIFT_ARB            0x2018

#define WGL_BLUE_BITS_ARB              0x2019

#define WGL_BLUE_SHIFT_ARB             0x201A

#define WGL_ALPHA_BITS_ARB             0x201B

#define WGL_ALPHA_SHIFT_ARB            0x201C

#define WGL_ACCUM_BITS_ARB             0x201D

#define WGL_ACCUM_RED_BITS_ARB         0x201E

#define WGL_ACCUM_GREEN_BITS_ARB       0x201F

#define WGL_ACCUM_BLUE_BITS_ARB        0x2020

#define WGL_ACCUM_ALPHA_BITS_ARB       0x2021

#define WGL_DEPTH_BITS_ARB             0x2022

#define WGL_STENCIL_BITS_ARB           0x2023

#define WGL_AUX_BUFFERS_ARB            0x2024

#define WGL_NO_ACCELERATION_ARB        0x2025

#define WGL_GENERIC_ACCELERATION_ARB   0x2026

#define WGL_FULL_ACCELERATION_ARB      0x2027

#define WGL_SWAP_EXCHANGE_ARB          0x2028

#define WGL_SWAP_COPY_ARB              0x2029

#define WGL_SWAP_UNDEFINED_ARB         0x202A

#define WGL_TYPE_RGBA_ARB              0x202B

#define WGL_TYPE_COLORINDEX_ARB        0x202C

#endif

#ifndef WGL_ARB_multisample

#define WGL_SAMPLE_BUFFERS_ARB         0x2041

#define WGL_SAMPLES_ARB                0x2042

#endif

#endif /* SDL_VIDEO_OPENGL_WGL */

#endif /* _SDL_win32opengl_h */

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