

#include "../../SDL_internal.h"

#ifndef SDL_DirectFB_video_h_
#define SDL_DirectFB_video_h_

#include <directfb.h>
#include <directfb_version.h>

#include "../SDL_sysvideo.h"
#include "SDL_scancode.h"
#include "SDL_render.h"

#include "SDL_log.h"

#define DFB_VERSIONNUM(X, Y, Z)                     \
    ((X)*1000 + (Y)*100 + (Z))

#define DFB_COMPILEDVERSION \
    DFB_VERSIONNUM(DIRECTFB_MAJOR_VERSION, DIRECTFB_MINOR_VERSION, DIRECTFB_MICRO_VERSION)

#define DFB_VERSION_ATLEAST(X, Y, Z) \
    (DFB_COMPILEDVERSION >= DFB_VERSIONNUM(X, Y, Z))

#if (DFB_VERSION_ATLEAST(1,0,0))
#ifdef SDL_VIDEO_OPENGL
#define SDL_DIRECTFB_OPENGL 1
#endif
#else
#error "SDL_DIRECTFB: Please compile against libdirectfb version >= 1.0.0"
#endif

/* Set below to 1 to compile with (old) multi mice/keyboard api. Code left in
 * in case we see this again ...
 */

#define USE_MULTI_API   (0)

/* Support for LUT8/INDEX8 pixel format.
 * This is broken in DirectFB 1.4.3. It works in 1.4.0 and 1.4.5
 * occurred.
 */

#if (DFB_COMPILEDVERSION == DFB_VERSIONNUM(1, 4, 3))
#define ENABLE_LUT8     (0)
#else
#define ENABLE_LUT8     (1)
#endif

#define DIRECTFB_DEBUG 1

#define DFBENV_USE_YUV_UNDERLAY     "SDL_DIRECTFB_YUV_UNDERLAY"     /* Default: off */
#define DFBENV_USE_YUV_DIRECT       "SDL_DIRECTFB_YUV_DIRECT"       /* Default: off */
#define DFBENV_USE_X11_CHECK        "SDL_DIRECTFB_X11_CHECK"        /* Default: on  */
#define DFBENV_USE_LINUX_INPUT      "SDL_DIRECTFB_LINUX_INPUT"      /* Default: on  */
#define DFBENV_USE_WM               "SDL_DIRECTFB_WM"       /* Default: off  */

#define SDL_DFB_RELEASE(x) do { if ( (x) != NULL ) { SDL_DFB_CHECK(x->Release(x)); x = NULL; } } while (0)
#define SDL_DFB_FREE(x) do { SDL_free((x)); (x) = NULL; } while (0)
#define SDL_DFB_UNLOCK(x) do { if ( (x) != NULL ) { x->Unlock(x); } } while (0)

#define SDL_DFB_CONTEXT "SDL_DirectFB"

#define SDL_DFB_ERR(x...) SDL_LogError(SDL_LOG_CATEGORY_ERROR, x)

#if (DIRECTFB_DEBUG)
#define SDL_DFB_LOG(x...) SDL_LogInfo(SDL_LOG_CATEGORY_VIDEO, x)

#define SDL_DFB_DEBUG(x...) SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, x)

static SDL_INLINE DFBResult sdl_dfb_check(DFBResult ret, const char *src_file, int src_line) {
    if (ret != DFB_OK) {
        SDL_DFB_LOG("%s (%d):%s", src_file, src_line, DirectFBErrorString (ret) );
        SDL_SetError("%s:%s", SDL_DFB_CONTEXT, DirectFBErrorString (ret) );
    }
    return ret;
}

#define SDL_DFB_CHECK(x...) do { sdl_dfb_check( x, __FILE__, __LINE__); } while (0)
#define SDL_DFB_CHECKERR(x...) do { if ( sdl_dfb_check( x, __FILE__, __LINE__) != DFB_OK ) goto error; } while (0)

#else

#define SDL_DFB_CHECK(x...) x
#define SDL_DFB_CHECKERR(x...) do { if (x != DFB_OK ) goto error; } while (0)
#define SDL_DFB_LOG(x...) do {} while (0)
#define SDL_DFB_DEBUG(x...) do {} while (0)

#endif


#define SDL_DFB_CALLOC(r, n, s) \
     do {                                           \
          r = SDL_calloc (n, s);                    \
          if (!(r)) {                               \
               SDL_DFB_ERR("Out of memory");        \
               SDL_OutOfMemory();                   \
               goto error;                          \
          }                                         \
     } while (0)

#define SDL_DFB_ALLOC_CLEAR(r, s) SDL_DFB_CALLOC(r, 1, s)

/* Private display data */

#define SDL_DFB_DEVICEDATA(dev)  DFB_DeviceData *devdata = (dev ? (DFB_DeviceData *) ((dev)->driverdata) : NULL)

#define DFB_MAX_SCREENS 10

typedef struct _DFB_KeyboardData DFB_KeyboardData;
struct _DFB_KeyboardData
{
    const SDL_Scancode  *map;       /* keyboard scancode map */
    int             map_size;   /* size of map */
    int             map_adjust; /* index adjust */
    int             is_generic; /* generic keyboard */
    int id;
};

typedef struct _DFB_DeviceData DFB_DeviceData;
struct _DFB_DeviceData
{
    int initialized;

    IDirectFB           *dfb;
    int                 num_mice;
    int                 mouse_id[0x100];
    int                 num_keyboard;
    DFB_KeyboardData    keyboard[10];
    SDL_Window          *firstwin;

    int                 use_yuv_underlays;
    int                 use_yuv_direct;
    int                 use_linux_input;
    int                 has_own_wm;


    /* window grab */
    SDL_Window          *grabbed_window;

    /* global events */
    IDirectFBEventBuffer *events;
};

Uint32 DirectFB_DFBToSDLPixelFormat(DFBSurfacePixelFormat pixelformat);
DFBSurfacePixelFormat DirectFB_SDLToDFBPixelFormat(Uint32 format);
void DirectFB_SetSupportedPixelFormats(SDL_RendererInfo *ri);


#endif /* SDL_DirectFB_video_h_ */
