static SDL_Cursor *
DirectFB_CreateDefaultCursor(void)
{
    SDL_VideoDevice *dev = SDL_GetVideoDevice();

    SDL_DFB_DEVICEDATA(dev);
    DFB_CursorData *curdata;
    DFBResult ret;
    DFBSurfaceDescription dsc;
    SDL_Cursor *cursor;
    Uint32 *dest;
    Uint32 *p;
    int pitch, i, j;

    SDL_DFB_ALLOC_CLEAR( cursor, sizeof(*cursor));
    SDL_DFB_ALLOC_CLEAR(curdata, sizeof(*curdata));

    dsc.flags =
        DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
    dsc.caps = DSCAPS_VIDEOONLY;
    dsc.width = 32;
    dsc.height = 32;
    dsc.pixelformat = DSPF_ARGB;

    SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc,
                                                 &curdata->surf));
    curdata->hotx = 0;
    curdata->hoty = 0;
    cursor->driverdata = curdata;

    SDL_DFB_CHECKERR(curdata->surf->Lock(curdata->surf, DSLF_WRITE,
                                         (void *) &dest, &pitch));

    /* Relies on the fact that this is only called with ARGB surface. */
    for (i = 0; i < 32; i++)
    {
        for (j = 0; j < 32; j++)
        {
            switch (arrow[i][j])
            {
            case ' ': dest[j] = 0x00000000; break;
            case '.': dest[j] = 0xffffffff; break;
            case 'X': dest[j] = 0xff000000; break;
            }
        }
        dest += (pitch >> 2);
    }

    curdata->surf->Unlock(curdata->surf);
    return cursor;
  error:
    return NULL;
}
SDL_GLContext
DirectFB_GL_CreateContext(_THIS, SDL_Window * window)
{
    SDL_DFB_WINDOWDATA(window);
    DirectFB_GLContext *context;

    SDL_DFB_ALLOC_CLEAR(context, sizeof(DirectFB_GLContext));

    SDL_DFB_CHECKERR(windata->surface->GetGL(windata->surface,
                                             &context->context));

    if (!context->context)
        return NULL;

    context->is_locked = 0;
    context->sdl_window = window;

    context->next = _this->gl_data->firstgl;
    _this->gl_data->firstgl = context;

    SDL_DFB_CHECK(context->context->Unlock(context->context));

    if (DirectFB_GL_MakeCurrent(_this, window, context) < 0) {
        DirectFB_GL_DeleteContext(_this, context);
        return NULL;
    }

    return context;

  error:
    return NULL;
}
/* Create a cursor from a surface */
static SDL_Cursor *
DirectFB_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
{
    SDL_VideoDevice *dev = SDL_GetVideoDevice();

    SDL_DFB_DEVICEDATA(dev);
    DFB_CursorData *curdata;
    DFBResult ret;
    DFBSurfaceDescription dsc;
    SDL_Cursor *cursor;
    Uint32 *dest;
    Uint32 *p;
    int pitch, i;

    SDL_assert(surface->format->format == SDL_PIXELFORMAT_ARGB8888);
    SDL_assert(surface->pitch == surface->w * 4);

    SDL_DFB_ALLOC_CLEAR( cursor, sizeof(*cursor));
    SDL_DFB_ALLOC_CLEAR(curdata, sizeof(*curdata));

    dsc.flags =
        DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
    dsc.caps = DSCAPS_VIDEOONLY;
    dsc.width = surface->w;
    dsc.height = surface->h;
    dsc.pixelformat = DSPF_ARGB;

    SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc,
                                                 &curdata->surf));
    curdata->hotx = hot_x;
    curdata->hoty = hot_y;
    cursor->driverdata = curdata;

    SDL_DFB_CHECKERR(curdata->surf->Lock(curdata->surf, DSLF_WRITE,
                                         (void *) &dest, &pitch));

    p = surface->pixels;
    for (i = 0; i < surface->h; i++)
        memcpy((char *) dest + i * pitch,
               (char *) p + i * surface->pitch, 4 * surface->w);

    curdata->surf->Unlock(curdata->surf);
    return cursor;
  error:
    return NULL;
}
int
DirectFB_CreateWindow(_THIS, SDL_Window * window)
{
    SDL_DFB_DEVICEDATA(_this);
    SDL_DFB_DISPLAYDATA(window);
    DFB_WindowData *windata = NULL;
    DFBWindowOptions wopts;
    DFBWindowDescription desc;
    int x, y;
    int bshaped = 0;

    SDL_DFB_ALLOC_CLEAR(window->driverdata, sizeof(DFB_WindowData));
    windata = (DFB_WindowData *) window->driverdata;

    windata->is_managed = devdata->has_own_wm;
#if 1
    SDL_DFB_CHECKERR(devdata->dfb->SetCooperativeLevel(devdata->dfb,
                                                       DFSCL_NORMAL));
    SDL_DFB_CHECKERR(dispdata->layer->SetCooperativeLevel(dispdata->layer,
                                                          DLSCL_ADMINISTRATIVE));
#endif
	/* FIXME ... ughh, ugly */
	if (window->x == -1000 && window->y == -1000)
		bshaped = 1;
	
    /* Fill the window description. */
    x = window->x;
    y = window->y;

    DirectFB_WM_AdjustWindowLayout(window, window->flags, window->w, window->h);

    /* Create Window */
	desc.caps = 0;
    desc.flags =
        DWDESC_WIDTH | DWDESC_HEIGHT | DWDESC_POSX | DWDESC_POSY | DWDESC_SURFACE_CAPS;

    if (bshaped) {
    	desc.flags |= DWDESC_CAPS;
    	desc.caps |= DWCAPS_ALPHACHANNEL;
    }
    else
    {
    	desc.flags |= DWDESC_PIXELFORMAT;
    }

    if (!(window->flags & SDL_WINDOW_BORDERLESS))
		desc.caps |= DWCAPS_NODECORATION;

    desc.posx = x;
    desc.posy = y;
    desc.width = windata->size.w;
    desc.height = windata->size.h;
    desc.pixelformat = dispdata->pixelformat;
    desc.surface_caps = DSCAPS_PREMULTIPLIED;
    
    /* Create the window. */
    SDL_DFB_CHECKERR(dispdata->layer->CreateWindow(dispdata->layer, &desc,
                                                   &windata->dfbwin));

    /* Set Options */
    SDL_DFB_CHECK(windata->dfbwin->GetOptions(windata->dfbwin, &wopts));

    /* explicit rescaling of surface */
    wopts |= DWOP_SCALE;
    if (window->flags & SDL_WINDOW_RESIZABLE) {
        wopts &= ~DWOP_KEEP_SIZE;
    }
    else {
        wopts |= DWOP_KEEP_SIZE;
    }

    if (window->flags & SDL_WINDOW_FULLSCREEN) {
        wopts |= DWOP_KEEP_POSITION | DWOP_KEEP_STACKING | DWOP_KEEP_SIZE;
        SDL_DFB_CHECK(windata->dfbwin->SetStackingClass(windata->dfbwin, DWSC_UPPER));
    }
    
    if (bshaped) {
        wopts |= DWOP_SHAPED | DWOP_ALPHACHANNEL;
        wopts &= ~DWOP_OPAQUE_REGION;
    }

    SDL_DFB_CHECK(windata->dfbwin->SetOptions(windata->dfbwin, wopts));

    /* See what we got */
    SDL_DFB_CHECK(DirectFB_WM_GetClientSize
                     (_this, window, &window->w, &window->h));

    /* Get the window's surface. */
    SDL_DFB_CHECKERR(windata->dfbwin->GetSurface(windata->dfbwin,
                                                 &windata->window_surface));

    /* And get a subsurface for rendering */
    SDL_DFB_CHECKERR(windata->window_surface->
                     GetSubSurface(windata->window_surface, &windata->client,
                                   &windata->surface));

    SDL_DFB_CHECK(windata->dfbwin->SetOpacity(windata->dfbwin, 0xFF));

    /* Create Eventbuffer */

    SDL_DFB_CHECKERR(windata->dfbwin->CreateEventBuffer(windata->dfbwin,
                                                        &windata->
                                                        eventbuffer));
    SDL_DFB_CHECKERR(windata->dfbwin->
                     EnableEvents(windata->dfbwin, DWET_ALL));

    /* Create a font */
    /* FIXME: once during Video_Init */
    windata->font = NULL;

    /* Make it the top most window. */
    SDL_DFB_CHECK(windata->dfbwin->RaiseToTop(windata->dfbwin));

    /* remember parent */
    //windata->sdlwin = window;

    /* Add to list ... */

    windata->next = devdata->firstwin;
    windata->opacity = 0xFF;
    devdata->firstwin = window;

    /* Draw Frame */
    DirectFB_WM_RedrawLayout(_this, window);

    return 0;
  error:
	SDL_DFB_RELEASE(windata->surface);
    SDL_DFB_RELEASE(windata->dfbwin);
    return -1;
}
static int
DirectFB_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
{
    SDL_Window *window = renderer->window;
    SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
    SDL_DFB_DEVICEDATA(display->device);
    DirectFB_TextureData *data;
    DFBSurfaceDescription dsc;
    DFBSurfacePixelFormat pixelformat;

    DirectFB_ActivateRenderer(renderer);

    SDL_DFB_ALLOC_CLEAR(data, sizeof(*data));
    texture->driverdata = data;

    /* find the right pixelformat */
    pixelformat = DirectFB_SDLToDFBPixelFormat(texture->format);
    if (pixelformat == DSPF_UNKNOWN) {
        SDL_SetError("Unknown pixel format %d\n", data->format);
        goto error;
    }

    data->format = texture->format;
    data->pitch = texture->w * DFB_BYTES_PER_PIXEL(pixelformat);

    if (DirectFB_AcquireVidLayer(renderer, texture) != 0) {
        /* fill surface description */
        dsc.flags =
            DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
        dsc.width = texture->w;
        dsc.height = texture->h;
        if(texture->format == SDL_PIXELFORMAT_YV12 ||
           texture->format == SDL_PIXELFORMAT_IYUV) {
           /* dfb has problems with odd sizes -make them even internally */
           dsc.width += (dsc.width % 2);
           dsc.height += (dsc.height % 2);
        }
        /* <1.2 Never use DSCAPS_VIDEOONLY here. It kills performance
         * No DSCAPS_SYSTEMONLY either - let dfb decide
         * 1.2: DSCAPS_SYSTEMONLY boosts performance by factor ~8
         * Depends on other settings as well. Let dfb decide.
         */
        dsc.caps = DSCAPS_PREMULTIPLIED;
#if 0
        if (texture->access == SDL_TEXTUREACCESS_STREAMING)
            dsc.caps |= DSCAPS_SYSTEMONLY;
        else
            dsc.caps |= DSCAPS_VIDEOONLY;
#endif

        dsc.pixelformat = pixelformat;
        data->pixels = NULL;

        /* Create the surface */
        SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc,
                                                     &data->surface));
        if (SDL_ISPIXELFORMAT_INDEXED(data->format)
            && !SDL_ISPIXELFORMAT_FOURCC(data->format)) {
#if 1
            SDL_DFB_CHECKERR(data->surface->GetPalette(data->surface, &data->palette));
#else
            /* DFB has issues with blitting LUT8 surfaces.
             * Creating a new palette does not help.
             */
            DFBPaletteDescription pal_desc;
            pal_desc.flags = DPDESC_SIZE; /* | DPDESC_ENTRIES */
            pal_desc.size = 256;
            SDL_DFB_CHECKERR(devdata->dfb->CreatePalette(devdata->dfb, &pal_desc,&data->palette));
            SDL_DFB_CHECKERR(data->surface->SetPalette(data->surface, data->palette));
#endif
        }

    }
#if (DFB_VERSION_ATLEAST(1,2,0))
    data->render_options = DSRO_NONE;
#endif
    if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
        /* 3 plane YUVs return 1 bpp, but we need more space for other planes */
        if(texture->format == SDL_PIXELFORMAT_YV12 ||
           texture->format == SDL_PIXELFORMAT_IYUV) {
            SDL_DFB_ALLOC_CLEAR(data->pixels, (texture->h * data->pitch  + ((texture->h + texture->h % 2) * (data->pitch + data->pitch % 2) * 2) / 4));
        } else {
            SDL_DFB_ALLOC_CLEAR(data->pixels, texture->h * data->pitch);
        }
    }

    return 0;

  error:
    SDL_DFB_RELEASE(data->palette);
    SDL_DFB_RELEASE(data->surface);
    SDL_DFB_FREE(texture->driverdata);
    return -1;
}
SDL_Renderer *
DirectFB_CreateRenderer(SDL_Window * window, Uint32 flags)
{
    IDirectFBSurface *winsurf = get_dfb_surface(window);
    SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
    SDL_Renderer *renderer = NULL;
    DirectFB_RenderData *data = NULL;
    DFBSurfaceCapabilities scaps;

    SDL_DFB_ALLOC_CLEAR(renderer, sizeof(*renderer));
    SDL_DFB_ALLOC_CLEAR(data, sizeof(*data));

    renderer->WindowEvent = DirectFB_WindowEvent;
    renderer->CreateTexture = DirectFB_CreateTexture;
    renderer->SetTextureAlphaMod = DirectFB_SetTextureAlphaMod;
    renderer->SetTextureColorMod = DirectFB_SetTextureColorMod;
    renderer->SetTextureBlendMode = DirectFB_SetTextureBlendMode;
    renderer->UpdateTexture = DirectFB_UpdateTexture;
    renderer->LockTexture = DirectFB_LockTexture;
    renderer->RenderClear = DirectFB_RenderClear;
    renderer->UnlockTexture = DirectFB_UnlockTexture;
    renderer->RenderDrawPoints = DirectFB_RenderDrawPoints;
    renderer->RenderDrawLines = DirectFB_RenderDrawLines;
    /* SetDrawColor - no needed */
    renderer->RenderFillRects = DirectFB_RenderFillRects;

    renderer->RenderCopy = DirectFB_RenderCopy;
    renderer->RenderPresent = DirectFB_RenderPresent;

    /* FIXME: Yet to be tested */
    renderer->RenderReadPixels = DirectFB_RenderReadPixels;
    /* renderer->RenderWritePixels = DirectFB_RenderWritePixels; */

    renderer->DestroyTexture = DirectFB_DestroyTexture;
    renderer->DestroyRenderer = DirectFB_DestroyRenderer;
    renderer->UpdateViewport = DirectFB_UpdateViewport;
    renderer->UpdateClipRect = DirectFB_UpdateClipRect;
    renderer->SetRenderTarget = DirectFB_SetRenderTarget;

#if 0
    renderer->QueryTexturePixels = DirectFB_QueryTexturePixels;
    renderer->SetTexturePalette = DirectFB_SetTexturePalette;
    renderer->GetTexturePalette = DirectFB_GetTexturePalette;
    renderer->SetTextureScaleMode = DirectFB_SetTextureScaleMode;
    renderer->DirtyTexture = DirectFB_DirtyTexture;
    renderer->SetDrawBlendMode = DirectFB_SetDrawBlendMode;
    renderer->RenderDrawRects = DirectFB_RenderDrawRects;
#endif

    renderer->info = DirectFB_RenderDriver.info;
    renderer->window = window;      /* SDL window */
    renderer->driverdata = data;

    renderer->info.flags =
        SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE;

    data->window = window;
    data->target = winsurf;

    data->flipflags = DSFLIP_PIPELINE | DSFLIP_BLIT;

    if (flags & SDL_RENDERER_PRESENTVSYNC) {
        data->flipflags |= DSFLIP_WAITFORSYNC | DSFLIP_ONSYNC;
        renderer->info.flags |= SDL_RENDERER_PRESENTVSYNC;
    } else
        data->flipflags |= DSFLIP_ONSYNC;

    SDL_DFB_CHECKERR(winsurf->GetCapabilities(winsurf, &scaps));

#if 0
    if (scaps & DSCAPS_DOUBLE)
        renderer->info.flags |= SDL_RENDERER_PRESENTFLIP2;
    else if (scaps & DSCAPS_TRIPLE)
        renderer->info.flags |= SDL_RENDERER_PRESENTFLIP3;
    else
        renderer->info.flags |= SDL_RENDERER_SINGLEBUFFER;
#endif

    DirectFB_SetSupportedPixelFormats(&renderer->info);

#if 0
    /* Set up a palette watch on the display palette */
    if (display-> palette) {
        SDL_AddPaletteWatch(display->palette, DisplayPaletteChanged, data);
    }
#endif

    return renderer;

  error:
    SDL_DFB_FREE(renderer);
    SDL_DFB_FREE(data);
    return NULL;
}
Example #7
0
int
DirectFB_SetWindowShape(SDL_WindowShaper *shaper,SDL_Surface *shape,SDL_WindowShapeMode *shape_mode) {
 
    if(shaper == NULL || shape == NULL || shaper->driverdata == NULL)
        return -1;
    if(shape->format->Amask == 0 && SDL_SHAPEMODEALPHA(shape_mode->mode))
        return -2;
    if(shape->w != shaper->window->w || shape->h != shaper->window->h)
        return -3;

    {
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(shaper->window);
        SDL_DFB_DEVICEDATA(display->device);
     	Uint32 *pixels;
     	Sint32 pitch;
     	Uint32 h,w;
     	Uint8  *src, *bitmap;
        DFBSurfaceDescription dsc;

        SDL_ShapeData *data = shaper->driverdata;

        SDL_DFB_RELEASE(data->surface);

        dsc.flags = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
        dsc.width = shape->w;
        dsc.height = shape->h;
        dsc.caps = DSCAPS_PREMULTIPLIED;
        dsc.pixelformat = DSPF_ARGB;

        SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc, &data->surface));

        /* Assume that shaper->alphacutoff already has a value, because SDL_SetWindowShape() should have given it one. */
        SDL_DFB_ALLOC_CLEAR(bitmap, shape->w * shape->h);
        SDL_CalculateShapeBitmap(shaper->mode,shape,bitmap,1);

    	src = bitmap;

        SDL_DFB_CHECK(data->surface->Lock(data->surface, DSLF_WRITE | DSLF_READ, (void **) &pixels, &pitch));

    	h = shaper->window->h;
    	while (h--) {
    		for (w = 0; w < shaper->window->w; w++) {
    			if (*src)
    				pixels[w] = 0xFFFFFFFF;
    			else
    				pixels[w] = 0;
    			src++;

    		}
    		pixels += (pitch >> 2);
    	}
        SDL_DFB_CHECK(data->surface->Unlock(data->surface));
    	SDL_DFB_FREE(bitmap);

    	/* FIXME: Need to call this here - Big ?? */
    	DirectFB_WM_RedrawLayout(SDL_GetDisplayForWindow(shaper->window)->device, shaper->window);
    }
    
    return 0;
error:
	return -1;
}
void
DirectFB_InitModes(_THIS)
{
    SDL_DFB_DEVICEDATA(_this);
    IDirectFBDisplayLayer *layer = NULL;
    SDL_VideoDisplay display;
    DFB_DisplayData *dispdata = NULL;
    SDL_DisplayMode mode;
    DFBGraphicsDeviceDescription caps;
    DFBDisplayLayerConfig dlc;
    struct screen_callback_t *screencbdata;

    int tcw[DFB_MAX_SCREENS];
    int tch[DFB_MAX_SCREENS];
    int i;
    DFBResult ret;

    SDL_DFB_ALLOC_CLEAR(screencbdata, sizeof(*screencbdata));

    screencbdata->numscreens = 0;

    for (i = 0; i < DFB_MAX_SCREENS; i++) {
        screencbdata->gralayer[i] = -1;
        screencbdata->vidlayer[i] = -1;
    }

    SDL_DFB_CHECKERR(devdata->dfb->EnumScreens(devdata->dfb, &EnumScreensCallback,
                                               screencbdata));

    for (i = 0; i < screencbdata->numscreens; i++) {
        IDirectFBScreen *screen;

        SDL_DFB_CHECKERR(devdata->dfb->GetScreen(devdata->dfb,
                                                 screencbdata->screenid
                                                 [i], &screen));

        screencbdata->aux = i;
        SDL_DFB_CHECKERR(screen->EnumDisplayLayers(screen, &EnumLayersCallback,
                                                   screencbdata));
        screen->GetSize(screen, &tcw[i], &tch[i]);

        screen->Release(screen);
    }

    /* Query card capabilities */

    devdata->dfb->GetDeviceDescription(devdata->dfb, &caps);

    for (i = 0; i < screencbdata->numscreens; i++) {
        SDL_DFB_CHECKERR(devdata->dfb->GetDisplayLayer(devdata->dfb,
                                                       screencbdata->gralayer
                                                       [i], &layer));

        SDL_DFB_CHECKERR(layer->SetCooperativeLevel(layer,
                                                    DLSCL_ADMINISTRATIVE));
        layer->EnableCursor(layer, 1);
        SDL_DFB_CHECKERR(layer->SetCursorOpacity(layer, 0xC0));

        if (devdata->use_yuv_underlays) {
            dlc.flags = DLCONF_PIXELFORMAT | DLCONF_OPTIONS;
            dlc.pixelformat = DSPF_ARGB;
            dlc.options = DLOP_ALPHACHANNEL;

            ret = layer->SetConfiguration(layer, &dlc);
            if (ret != DFB_OK) {
                /* try AiRGB if the previous failed */
                dlc.pixelformat = DSPF_AiRGB;
                SDL_DFB_CHECKERR(layer->SetConfiguration(layer, &dlc));
            }
        }

        /* Query layer configuration to determine the current mode and pixelformat */
        dlc.flags = DLCONF_ALL;
        SDL_DFB_CHECKERR(layer->GetConfiguration(layer, &dlc));

        mode.format = DirectFB_DFBToSDLPixelFormat(dlc.pixelformat);
        
        if (mode.format == SDL_PIXELFORMAT_UNKNOWN) {
            SDL_DFB_ERR("Unknown dfb pixelformat %x !\n", dlc.pixelformat);
            goto error;
        }

        mode.w = dlc.width;
        mode.h = dlc.height;
        mode.refresh_rate = 0;
        mode.driverdata = NULL;

        SDL_DFB_ALLOC_CLEAR(dispdata, sizeof(*dispdata));

        dispdata->layer = layer;
        dispdata->pixelformat = dlc.pixelformat;
        dispdata->cw = tcw[i];
        dispdata->ch = tch[i];

        /* YUV - Video layer */

        dispdata->vidID = screencbdata->vidlayer[i];
        dispdata->vidIDinuse = 0;

        SDL_zero(display);

        display.desktop_mode = mode;
        display.current_mode = mode;
        display.driverdata = dispdata;

#if (DFB_VERSION_ATLEAST(1,2,0))
        dlc.flags =
            DLCONF_WIDTH | DLCONF_HEIGHT | DLCONF_PIXELFORMAT |
            DLCONF_OPTIONS;
        ret = layer->SetConfiguration(layer, &dlc);
#endif

        SDL_DFB_CHECKERR(layer->SetCooperativeLevel(layer, DLSCL_SHARED));

        SDL_AddVideoDisplay(&display);
    }
    SDL_DFB_FREE(screencbdata);
    return;
  error:
    /* FIXME: Cleanup not complete, Free existing displays */
    SDL_DFB_FREE(dispdata);
    SDL_DFB_RELEASE(layer);
    return;
}
static SDL_VideoDevice *
DirectFB_CreateDevice(int devindex)
{
    SDL_VideoDevice *device;

    if (!SDL_DirectFB_LoadLibrary()) {
        return NULL;
    }

    /* Initialize all variables that we clean on shutdown */
    SDL_DFB_ALLOC_CLEAR(device, sizeof(SDL_VideoDevice));

    /* Set the function pointers */

    /* Set the function pointers */
    device->VideoInit = DirectFB_VideoInit;
    device->VideoQuit = DirectFB_VideoQuit;
    device->GetDisplayModes = DirectFB_GetDisplayModes;
    device->SetDisplayMode = DirectFB_SetDisplayMode;
    device->PumpEvents = DirectFB_PumpEventsWindow;
    device->CreateWindow = DirectFB_CreateWindow;
    device->CreateWindowFrom = DirectFB_CreateWindowFrom;
    device->SetWindowTitle = DirectFB_SetWindowTitle;
    device->SetWindowIcon = DirectFB_SetWindowIcon;
    device->SetWindowPosition = DirectFB_SetWindowPosition;
    device->SetWindowSize = DirectFB_SetWindowSize;
    device->SetWindowOpacity = DirectFB_SetWindowOpacity;
    device->ShowWindow = DirectFB_ShowWindow;
    device->HideWindow = DirectFB_HideWindow;
    device->RaiseWindow = DirectFB_RaiseWindow;
    device->MaximizeWindow = DirectFB_MaximizeWindow;
    device->MinimizeWindow = DirectFB_MinimizeWindow;
    device->RestoreWindow = DirectFB_RestoreWindow;
    device->SetWindowGrab = DirectFB_SetWindowGrab;
    device->DestroyWindow = DirectFB_DestroyWindow;
    device->GetWindowWMInfo = DirectFB_GetWindowWMInfo;

    /* !!! FIXME: implement SetWindowBordered */

#if SDL_DIRECTFB_OPENGL
    device->GL_LoadLibrary = DirectFB_GL_LoadLibrary;
    device->GL_GetProcAddress = DirectFB_GL_GetProcAddress;
    device->GL_MakeCurrent = DirectFB_GL_MakeCurrent;

    device->GL_CreateContext = DirectFB_GL_CreateContext;
    device->GL_SetSwapInterval = DirectFB_GL_SetSwapInterval;
    device->GL_GetSwapInterval = DirectFB_GL_GetSwapInterval;
    device->GL_SwapWindow = DirectFB_GL_SwapWindow;
    device->GL_DeleteContext = DirectFB_GL_DeleteContext;

#endif

    /* Shaped window support */
    device->shape_driver.CreateShaper = DirectFB_CreateShaper;
    device->shape_driver.SetWindowShape = DirectFB_SetWindowShape;
    device->shape_driver.ResizeWindowShape = DirectFB_ResizeWindowShape;

    device->free = DirectFB_DeleteDevice;

    return device;
  error:
    if (device)
        SDL_free(device);
    return (0);
}
static int
DirectFB_VideoInit(_THIS)
{
    IDirectFB *dfb = NULL;
    DFB_DeviceData *devdata = NULL;
    DFBResult ret;

    SDL_DFB_ALLOC_CLEAR(devdata, sizeof(*devdata));

    SDL_DFB_CHECKERR(DirectFBInit(NULL, NULL));

    /* avoid switching to the framebuffer when we
     * are running X11 */
    ret = readBoolEnv(DFBENV_USE_X11_CHECK , 1);
    if (ret) {
        if (SDL_getenv("DISPLAY"))
            DirectFBSetOption("system", "x11");
        else
            DirectFBSetOption("disable-module", "x11input");
    }

    /* FIXME: Reenable as default once multi kbd/mouse interface is sorted out */
    devdata->use_linux_input = readBoolEnv(DFBENV_USE_LINUX_INPUT, 0);       /* default: on */

    if (!devdata->use_linux_input)
    {
        SDL_DFB_LOG("Disabling linux input\n");
        DirectFBSetOption("disable-module", "linux_input");
    }

    SDL_DFB_CHECKERR(DirectFBCreate(&dfb));

    DirectFB_DeviceInformation(dfb);

    devdata->use_yuv_underlays = readBoolEnv(DFBENV_USE_YUV_UNDERLAY, 0);     /* default: off */
    devdata->use_yuv_direct = readBoolEnv(DFBENV_USE_YUV_DIRECT, 0);      /* default is off! */

    /* Create global Eventbuffer for axis events */
    if (devdata->use_linux_input) {
        SDL_DFB_CHECKERR(dfb->CreateInputEventBuffer(dfb, DICAPS_ALL,
                                                     DFB_TRUE,
                                                     &devdata->events));
    } else {
        SDL_DFB_CHECKERR(dfb->CreateInputEventBuffer(dfb, DICAPS_AXES
                                                     /* DICAPS_ALL */ ,
                                                     DFB_TRUE,
                                                     &devdata->events));
    }

    /* simple window manager support */
    devdata->has_own_wm = readBoolEnv(DFBENV_USE_WM, 0);

    devdata->initialized = 1;

    devdata->dfb = dfb;
    devdata->firstwin = NULL;
    devdata->grabbed_window = NULL;

    _this->driverdata = devdata;

    DirectFB_InitModes(_this);

#if SDL_DIRECTFB_OPENGL
    DirectFB_GL_Initialize(_this);
#endif

    DirectFB_InitMouse(_this);
    DirectFB_InitKeyboard(_this);

    return 0;


  error:
    SDL_DFB_FREE(devdata);
    SDL_DFB_RELEASE(dfb);
    return -1;
}