/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 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

    QNX Graphics Framework SDL driver
    Copyright (C) 2009 Mike Gorchak
    (mike@malva.ua, lestat@i.com.ua)
*/

#ifndef __SDL_QNXGF_H__
#define __SDL_QNXGF_H__

#include "../SDL_sysvideo.h"

#include <gf/gf.h>
#include <gf/gf3d.h>

#if defined(SDL_VIDEO_OPENGL_ES)
   #include <GLES/egl.h>
#endif /* SDL_VIDEO_OPENGL_ES */

typedef struct SDL_VideoData
{
   gf_dev_t      gfdev;              /* GF device handle                     */
   gf_dev_info_t gfdev_info;         /* GF device information                */
   SDL_bool      gfinitialized;      /* GF device initialization status      */
   #if defined(SDL_VIDEO_OPENGL_ES)
      EGLDisplay egldisplay;         /* OpenGL ES display connection         */
      uint32_t   egl_refcount;       /* OpenGL ES reference count            */
      uint32_t   swapinterval;       /* OpenGL ES default swap interval      */
   #endif /* SDL_VIDEO_OPENGL_ES */
} SDL_VideoData;

#define SDL_VIDEO_GF_DEVICENAME_MAX  257
#define SDL_VIDEO_GF_MAX_CURSOR_SIZE 128

typedef struct SDL_DisplayData
{
   gf_display_info_t display_info;     /* GF display information             */
   gf_display_t      display;          /* GF display handle                  */
   uint32_t          custom_refresh;   /* Custom refresh rate for all modes  */
   SDL_DisplayMode   current_mode;     /* Current video mode                 */
   uint8_t           description[SDL_VIDEO_GF_DEVICENAME_MAX];
                                       /* Device description                 */
   uint32_t          caps;             /* Device capabilities                */
   SDL_bool          layer_attached;   /* Layer attach status                */
   gf_layer_t        layer;            /* Graphics layer to which attached   */
   gf_surface_t      surface[3];       /* Visible surface on the display     */
   SDL_bool          cursor_visible;   /* SDL_TRUE if cursor visible         */
   gf_cursor_t       cursor;           /* Cursor shape which was set last    */
} SDL_DisplayData;

/* Maximum amount of OpenGL ES framebuffer configurations */
#define SDL_VIDEO_GF_OPENGLES_CONFS 32

typedef struct SDL_WindowData
{
   SDL_bool   uses_gles;               /* true if window support OpenGL ES   */
   #if defined(SDL_VIDEO_OPENGL_ES)
      gf_3d_target_t target;           /* OpenGL ES window target            */
      SDL_bool   target_created;       /* GF 3D target is created if true    */
      EGLConfig  gles_configs[SDL_VIDEO_GF_OPENGLES_CONFS];
                                       /* OpenGL ES framebuffer confs        */
      EGLint     gles_config;          /* Config index in the array of cfgs  */
      EGLContext gles_context;         /* OpenGL ES context                  */
      EGLint     gles_attributes[256]; /* OpenGL ES attributes for context   */
      EGLSurface gles_surface;         /* OpenGL ES target rendering surface */
   #endif /* SDL_VIDEO_OPENGL_ES */
} SDL_WindowData;

typedef struct SDL_GLDriverData
{
   #if defined(SDL_VIDEO_OPENGL_ES)
   #endif /* SDL_VIDEO_OPENGL_ES */
} SDL_GLDriverData;

/****************************************************************************/
/* Low level GF graphics driver capabilities                                */
/****************************************************************************/
typedef struct GF_DeviceCaps
{
   uint8_t* name;
   uint32_t caps;
} GF_DeviceCaps;

#define SDL_GF_UNACCELERATED         0x00000000
#define SDL_GF_ACCELERATED           0x00000001
#define SDL_GF_NOLOWRESOLUTION       0x00000000
#define SDL_GF_LOWRESOLUTION         0x00000002
#define SDL_GF_UNACCELERATED_3D      0x00000000
#define SDL_GF_ACCELERATED_3D        0x00000004

/****************************************************************************/
/* SDL_VideoDevice functions declaration                                    */
/****************************************************************************/

/* Display and window functions */
int  qnxgf_videoinit(_THIS);
void qnxgf_videoquit(_THIS);
void qnxgf_getdisplaymodes(_THIS);
int  qnxgf_setdisplaymode(_THIS, SDL_DisplayMode* mode);
int  qnxgf_setdisplaypalette(_THIS, SDL_Palette* palette);
int  qnxgf_getdisplaypalette(_THIS, SDL_Palette* palette);
int  qnxgf_setdisplaygammaramp(_THIS, Uint16* ramp);
int  qnxgf_getdisplaygammaramp(_THIS, Uint16* ramp);
int  qnxgf_createwindow(_THIS, SDL_Window* window);
int  qnxgf_createwindowfrom(_THIS, SDL_Window* window, const void* data);
void qnxgf_setwindowtitle(_THIS, SDL_Window* window);
void qnxgf_setwindowicon(_THIS, SDL_Window* window, SDL_Surface* icon);
void qnxgf_setwindowposition(_THIS, SDL_Window* window);
void qnxgf_setwindowsize(_THIS, SDL_Window* window);
void qnxgf_showwindow(_THIS, SDL_Window* window);
void qnxgf_hidewindow(_THIS, SDL_Window* window);
void qnxgf_raisewindow(_THIS, SDL_Window* window);
void qnxgf_maximizewindow(_THIS, SDL_Window* window);
void qnxgf_minimizewindow(_THIS, SDL_Window* window);
void qnxgf_restorewindow(_THIS, SDL_Window* window);
void qnxgf_setwindowgrab(_THIS, SDL_Window* window);
void qnxgf_destroywindow(_THIS, SDL_Window* window);

/* Window manager function */
SDL_bool qnxgf_getwindowwminfo(_THIS, SDL_Window* window, struct SDL_SysWMinfo* info);

/* OpenGL/OpenGL ES functions */
int qnxgf_gl_loadlibrary(_THIS, const char* path);
void* qnxgf_gl_getprocaddres(_THIS, const char* proc);
void qnxgf_gl_unloadlibrary(_THIS);
SDL_GLContext qnxgf_gl_createcontext(_THIS, SDL_Window* window);
int qnxgf_gl_makecurrent(_THIS, SDL_Window* window, SDL_GLContext context);
int qnxgf_gl_setswapinterval(_THIS, int interval);
int qnxgf_gl_getswapinterval(_THIS);
void qnxgf_gl_swapwindow(_THIS, SDL_Window* window);
void qnxgf_gl_deletecontext(_THIS, SDL_GLContext context);

/* Event handling function */
void qnxgf_pumpevents(_THIS);

/* Screen saver related function */
void qnxgf_suspendscreensaver(_THIS);

#endif /* __SDL_QNXGF_H__ */

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