src/video/directfb/SDL_DirectFB_modes.c - third_party/sdl - Git at Google

 /*
   Simple DirectMedia Layer
   Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>

   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
   arising from the use of this software.

   Permission is granted to anyone to use this software for any purpose,
   including commercial applications, and to alter it and redistribute it
   freely, subject to the following restrictions:

   1. The origin of this software must not be misrepresented; you must not
      claim that you wrote the original software. If you use this software
      in a product, an acknowledgment in the product documentation would be
      appreciated but is not required.
   2. Altered source versions must be plainly marked as such, and must not be
      misrepresented as being the original software.
   3. This notice may not be removed or altered from any source distribution.
 */
 #include "../../SDL_internal.h"

 #if SDL_VIDEO_DRIVER_DIRECTFB

 #include "SDL_DirectFB_video.h"
 #include "SDL_DirectFB_modes.h"

 #define DFB_MAX_MODES 200

 struct screen_callback_t
 {
     int numscreens;
     DFBScreenID screenid[DFB_MAX_SCREENS];
     DFBDisplayLayerID gralayer[DFB_MAX_SCREENS];
     DFBDisplayLayerID vidlayer[DFB_MAX_SCREENS];
     int aux;                    /* auxiliary integer for callbacks */
 };

 struct modes_callback_t
 {
     int nummodes;
     SDL_DisplayMode *modelist;
 };

 static DFBEnumerationResult
 EnumModesCallback(int width, int height, int bpp, void *data)
 {
     struct modes_callback_t *modedata = (struct modes_callback_t *) data;
     SDL_DisplayMode mode;

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

     if (modedata->nummodes < DFB_MAX_MODES) {
         modedata->modelist[modedata->nummodes++] = mode;
     }

     return DFENUM_OK;
 }

 static DFBEnumerationResult
 EnumScreensCallback(DFBScreenID screen_id, DFBScreenDescription desc,
           void *callbackdata)
 {
     struct screen_callback_t *devdata = (struct screen_callback_t *) callbackdata;

     devdata->screenid[devdata->numscreens++] = screen_id;
     return DFENUM_OK;
 }

 static DFBEnumerationResult
 EnumLayersCallback(DFBDisplayLayerID layer_id, DFBDisplayLayerDescription desc,
          void *callbackdata)
 {
     struct screen_callback_t *devdata = (struct screen_callback_t *) callbackdata;

     if (desc.caps & DLCAPS_SURFACE) {
         if ((desc.type & DLTF_GRAPHICS) && (desc.type & DLTF_VIDEO)) {
             if (devdata->vidlayer[devdata->aux] == -1)
                 devdata->vidlayer[devdata->aux] = layer_id;
         } else if (desc.type & DLTF_GRAPHICS) {
             if (devdata->gralayer[devdata->aux] == -1)
                 devdata->gralayer[devdata->aux] = layer_id;
         }
     }
     return DFENUM_OK;
 }

 static void
 CheckSetDisplayMode(_THIS, SDL_VideoDisplay * display, DFB_DisplayData * data, SDL_DisplayMode * mode)
 {
     SDL_DFB_DEVICEDATA(_this);
     DFBDisplayLayerConfig config;
     DFBDisplayLayerConfigFlags failed;

     SDL_DFB_CHECKERR(data->layer->SetCooperativeLevel(data->layer,
                                                       DLSCL_ADMINISTRATIVE));
     config.width = mode->w;
     config.height = mode->h;
     config.pixelformat = DirectFB_SDLToDFBPixelFormat(mode->format);
     config.flags = DLCONF_WIDTH | DLCONF_HEIGHT | DLCONF_PIXELFORMAT;
     if (devdata->use_yuv_underlays) {
         config.flags |= DLCONF_OPTIONS;
         config.options = DLOP_ALPHACHANNEL;
     }
     failed = 0;
     data->layer->TestConfiguration(data->layer, &config, &failed);
     SDL_DFB_CHECKERR(data->layer->SetCooperativeLevel(data->layer,
                                                       DLSCL_SHARED));
     if (failed == 0)
     {
         SDL_AddDisplayMode(display, mode);
         SDL_DFB_LOG("Mode %d x %d Added\n", mode->w, mode->h);
     }
     else
         SDL_DFB_ERR("Mode %d x %d not available: %x\n", mode->w,
                       mode->h, failed);

     return;
   error:
     return;
 }


 void
 DirectFB_SetContext(_THIS, SDL_Window *window)
 {
 #if (DFB_VERSION_ATLEAST(1,0,0))
     /* FIXME: does not work on 1.0/1.2 with radeon driver
      *        the approach did work with the matrox driver
      *        This has simply no effect.
      */

     SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
     DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;

     /* FIXME: should we handle the error */
     if (dispdata->vidIDinuse)
         SDL_DFB_CHECK(dispdata->vidlayer->SwitchContext(dispdata->vidlayer,
                                                            DFB_TRUE));
 #endif
 }

 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;
 }

 void
 DirectFB_GetDisplayModes(_THIS, SDL_VideoDisplay * display)
 {
     SDL_DFB_DEVICEDATA(_this);
     DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
     SDL_DisplayMode mode;
     struct modes_callback_t data;
     int i;

     data.nummodes = 0;
     /* Enumerate the available fullscreen modes */
     SDL_DFB_CALLOC(data.modelist, DFB_MAX_MODES, sizeof(SDL_DisplayMode));
     SDL_DFB_CHECKERR(devdata->dfb->EnumVideoModes(devdata->dfb,
                                                   EnumModesCallback, &data));

     for (i = 0; i < data.nummodes; ++i) {
         mode = data.modelist[i];

         mode.format = SDL_PIXELFORMAT_ARGB8888;
         CheckSetDisplayMode(_this, display, dispdata, &mode);
         mode.format = SDL_PIXELFORMAT_RGB888;
         CheckSetDisplayMode(_this, display, dispdata, &mode);
         mode.format = SDL_PIXELFORMAT_RGB24;
         CheckSetDisplayMode(_this, display, dispdata, &mode);
         mode.format = SDL_PIXELFORMAT_RGB565;
         CheckSetDisplayMode(_this, display, dispdata, &mode);
         mode.format = SDL_PIXELFORMAT_INDEX8;
         CheckSetDisplayMode(_this, display, dispdata, &mode);
     }

     SDL_DFB_FREE(data.modelist);
 error:
     return;
 }

 int
 DirectFB_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode)
 {
     /*
      * FIXME: video mode switch is currently broken for 1.2.0
      *
      */

     SDL_DFB_DEVICEDATA(_this);
     DFB_DisplayData *data = (DFB_DisplayData *) display->driverdata;
     DFBDisplayLayerConfig config, rconfig;
     DFBDisplayLayerConfigFlags fail = 0;

     SDL_DFB_CHECKERR(data->layer->SetCooperativeLevel(data->layer,
                                                       DLSCL_ADMINISTRATIVE));

     SDL_DFB_CHECKERR(data->layer->GetConfiguration(data->layer, &config));
     config.flags = DLCONF_WIDTH | DLCONF_HEIGHT;
     if (mode->format != SDL_PIXELFORMAT_UNKNOWN) {
         config.flags |= DLCONF_PIXELFORMAT;
         config.pixelformat = DirectFB_SDLToDFBPixelFormat(mode->format);
         data->pixelformat = config.pixelformat;
     }
     config.width = mode->w;
     config.height = mode->h;

     if (devdata->use_yuv_underlays) {
         config.flags |= DLCONF_OPTIONS;
         config.options = DLOP_ALPHACHANNEL;
     }

     data->layer->TestConfiguration(data->layer, &config, &fail);

     if (fail &
         (DLCONF_WIDTH | DLCONF_HEIGHT | DLCONF_PIXELFORMAT |
          DLCONF_OPTIONS)) {
         SDL_DFB_ERR("Error setting mode %dx%d-%x\n", mode->w, mode->h,
                     mode->format);
         return -1;
     }

     config.flags &= ~fail;
     SDL_DFB_CHECKERR(data->layer->SetConfiguration(data->layer, &config));
 #if (DFB_VERSION_ATLEAST(1,2,0))
     /* Need to call this twice ! */
     SDL_DFB_CHECKERR(data->layer->SetConfiguration(data->layer, &config));
 #endif

     /* Double check */
     SDL_DFB_CHECKERR(data->layer->GetConfiguration(data->layer, &rconfig));
     SDL_DFB_CHECKERR(data->
                      layer->SetCooperativeLevel(data->layer, DLSCL_SHARED));

     if ((config.width != rconfig.width) || (config.height != rconfig.height)
         || ((mode->format != SDL_PIXELFORMAT_UNKNOWN)
             && (config.pixelformat != rconfig.pixelformat))) {
         SDL_DFB_ERR("Error setting mode %dx%d-%x\n", mode->w, mode->h,
                     mode->format);
         return -1;
     }

     data->pixelformat = rconfig.pixelformat;
     data->cw = config.width;
     data->ch = config.height;
     display->current_mode = *mode;

     return 0;
   error:
     return -1;
 }

 void
 DirectFB_QuitModes(_THIS)
 {
     SDL_DisplayMode tmode;
     int i;

     for (i = 0; i < _this->num_displays; ++i) {
         SDL_VideoDisplay *display = &_this->displays[i];
         DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;

         SDL_GetDesktopDisplayMode(i, &tmode);
         tmode.format = SDL_PIXELFORMAT_UNKNOWN;
         DirectFB_SetDisplayMode(_this, display, &tmode);

         SDL_GetDesktopDisplayMode(i, &tmode);
         DirectFB_SetDisplayMode(_this, display, &tmode);

         if (dispdata->layer) {
             SDL_DFB_CHECK(dispdata->
                           layer->SetCooperativeLevel(dispdata->layer,
                                                      DLSCL_ADMINISTRATIVE));
             SDL_DFB_CHECK(dispdata->
                           layer->SetCursorOpacity(dispdata->layer, 0x00));
             SDL_DFB_CHECK(dispdata->
                           layer->SetCooperativeLevel(dispdata->layer,
                                                      DLSCL_SHARED));
         }

         SDL_DFB_RELEASE(dispdata->layer);
         SDL_DFB_RELEASE(dispdata->vidlayer);

     }
 }

 #endif /* SDL_VIDEO_DRIVER_DIRECTFB */

 /* vi: set ts=4 sw=4 expandtab: */
	/*
	Simple DirectMedia Layer
	Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>

	This software is provided 'as-is', without any express or implied
	warranty. In no event will the authors be held liable for any damages
	arising from the use of this software.

	Permission is granted to anyone to use this software for any purpose,
	including commercial applications, and to alter it and redistribute it
	freely, subject to the following restrictions:

	1. The origin of this software must not be misrepresented; you must not
	claim that you wrote the original software. If you use this software
	in a product, an acknowledgment in the product documentation would be
	appreciated but is not required.
	2. Altered source versions must be plainly marked as such, and must not be
	misrepresented as being the original software.
	3. This notice may not be removed or altered from any source distribution.
	*/
	#include "../../SDL_internal.h"

	#if SDL_VIDEO_DRIVER_DIRECTFB

	#include "SDL_DirectFB_video.h"
	#include "SDL_DirectFB_modes.h"

	#define DFB_MAX_MODES 200

	struct screen_callback_t
	{
	int numscreens;
	DFBScreenID screenid[DFB_MAX_SCREENS];
	DFBDisplayLayerID gralayer[DFB_MAX_SCREENS];
	DFBDisplayLayerID vidlayer[DFB_MAX_SCREENS];
	int aux; /* auxiliary integer for callbacks */
	};

	struct modes_callback_t
	{
	int nummodes;
	SDL_DisplayMode *modelist;
	};

	static DFBEnumerationResult
	EnumModesCallback(int width, int height, int bpp, void *data)
	{
	struct modes_callback_t modedata = (struct modes_callback_t ) data;
	SDL_DisplayMode mode;

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

	if (modedata->nummodes < DFB_MAX_MODES) {
	modedata->modelist[modedata->nummodes++] = mode;
	}

	return DFENUM_OK;
	}

	static DFBEnumerationResult
	EnumScreensCallback(DFBScreenID screen_id, DFBScreenDescription desc,
	void *callbackdata)
	{
	struct screen_callback_t devdata = (struct screen_callback_t ) callbackdata;

	devdata->screenid[devdata->numscreens++] = screen_id;
	return DFENUM_OK;
	}

	static DFBEnumerationResult
	EnumLayersCallback(DFBDisplayLayerID layer_id, DFBDisplayLayerDescription desc,
	void *callbackdata)
	{
	struct screen_callback_t devdata = (struct screen_callback_t ) callbackdata;

	if (desc.caps & DLCAPS_SURFACE) {
	if ((desc.type & DLTF_GRAPHICS) && (desc.type & DLTF_VIDEO)) {
	if (devdata->vidlayer[devdata->aux] == -1)
	devdata->vidlayer[devdata->aux] = layer_id;
	} else if (desc.type & DLTF_GRAPHICS) {
	if (devdata->gralayer[devdata->aux] == -1)
	devdata->gralayer[devdata->aux] = layer_id;
	}
	}
	return DFENUM_OK;
	}

	static void
	CheckSetDisplayMode(_THIS, SDL_VideoDisplay * display, DFB_DisplayData * data, SDL_DisplayMode * mode)
	{
	SDL_DFB_DEVICEDATA(_this);
	DFBDisplayLayerConfig config;
	DFBDisplayLayerConfigFlags failed;

	SDL_DFB_CHECKERR(data->layer->SetCooperativeLevel(data->layer,
	DLSCL_ADMINISTRATIVE));
	config.width = mode->w;
	config.height = mode->h;
	config.pixelformat = DirectFB_SDLToDFBPixelFormat(mode->format);
	config.flags = DLCONF_WIDTH \| DLCONF_HEIGHT \| DLCONF_PIXELFORMAT;
	if (devdata->use_yuv_underlays) {
	config.flags \|= DLCONF_OPTIONS;
	config.options = DLOP_ALPHACHANNEL;
	}
	failed = 0;
	data->layer->TestConfiguration(data->layer, &config, &failed);
	SDL_DFB_CHECKERR(data->layer->SetCooperativeLevel(data->layer,
	DLSCL_SHARED));
	if (failed == 0)
	{
	SDL_AddDisplayMode(display, mode);
	SDL_DFB_LOG("Mode %d x %d Added\n", mode->w, mode->h);
	}
	else
	SDL_DFB_ERR("Mode %d x %d not available: %x\n", mode->w,
	mode->h, failed);

	return;
	error:
	return;
	}


	void
	DirectFB_SetContext(_THIS, SDL_Window *window)
	{
	#if (DFB_VERSION_ATLEAST(1,0,0))
	/* FIXME: does not work on 1.0/1.2 with radeon driver
	* the approach did work with the matrox driver
	* This has simply no effect.
	*/

	SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
	DFB_DisplayData dispdata = (DFB_DisplayData ) display->driverdata;

	/* FIXME: should we handle the error */
	if (dispdata->vidIDinuse)
	SDL_DFB_CHECK(dispdata->vidlayer->SwitchContext(dispdata->vidlayer,
	DFB_TRUE));
	#endif
	}

	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;
	}

	void
	DirectFB_GetDisplayModes(_THIS, SDL_VideoDisplay * display)
	{
	SDL_DFB_DEVICEDATA(_this);
	DFB_DisplayData dispdata = (DFB_DisplayData ) display->driverdata;
	SDL_DisplayMode mode;
	struct modes_callback_t data;
	int i;

	data.nummodes = 0;
	/* Enumerate the available fullscreen modes */
	SDL_DFB_CALLOC(data.modelist, DFB_MAX_MODES, sizeof(SDL_DisplayMode));
	SDL_DFB_CHECKERR(devdata->dfb->EnumVideoModes(devdata->dfb,
	EnumModesCallback, &data));

	for (i = 0; i < data.nummodes; ++i) {
	mode = data.modelist[i];

	mode.format = SDL_PIXELFORMAT_ARGB8888;
	CheckSetDisplayMode(_this, display, dispdata, &mode);
	mode.format = SDL_PIXELFORMAT_RGB888;
	CheckSetDisplayMode(_this, display, dispdata, &mode);
	mode.format = SDL_PIXELFORMAT_RGB24;
	CheckSetDisplayMode(_this, display, dispdata, &mode);
	mode.format = SDL_PIXELFORMAT_RGB565;
	CheckSetDisplayMode(_this, display, dispdata, &mode);
	mode.format = SDL_PIXELFORMAT_INDEX8;
	CheckSetDisplayMode(_this, display, dispdata, &mode);
	}

	SDL_DFB_FREE(data.modelist);
	error:
	return;
	}

	int
	DirectFB_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode)
	{
	/*
	* FIXME: video mode switch is currently broken for 1.2.0
	*
	*/

	SDL_DFB_DEVICEDATA(_this);
	DFB_DisplayData data = (DFB_DisplayData ) display->driverdata;
	DFBDisplayLayerConfig config, rconfig;
	DFBDisplayLayerConfigFlags fail = 0;

	SDL_DFB_CHECKERR(data->layer->SetCooperativeLevel(data->layer,
	DLSCL_ADMINISTRATIVE));

	SDL_DFB_CHECKERR(data->layer->GetConfiguration(data->layer, &config));
	config.flags = DLCONF_WIDTH \| DLCONF_HEIGHT;
	if (mode->format != SDL_PIXELFORMAT_UNKNOWN) {
	config.flags \|= DLCONF_PIXELFORMAT;
	config.pixelformat = DirectFB_SDLToDFBPixelFormat(mode->format);
	data->pixelformat = config.pixelformat;
	}
	config.width = mode->w;
	config.height = mode->h;

	if (devdata->use_yuv_underlays) {
	config.flags \|= DLCONF_OPTIONS;
	config.options = DLOP_ALPHACHANNEL;
	}

	data->layer->TestConfiguration(data->layer, &config, &fail);

	if (fail &
	(DLCONF_WIDTH \| DLCONF_HEIGHT \| DLCONF_PIXELFORMAT \|
	DLCONF_OPTIONS)) {
	SDL_DFB_ERR("Error setting mode %dx%d-%x\n", mode->w, mode->h,
	mode->format);
	return -1;
	}

	config.flags &= ~fail;
	SDL_DFB_CHECKERR(data->layer->SetConfiguration(data->layer, &config));
	#if (DFB_VERSION_ATLEAST(1,2,0))
	/* Need to call this twice ! */
	SDL_DFB_CHECKERR(data->layer->SetConfiguration(data->layer, &config));
	#endif

	/* Double check */
	SDL_DFB_CHECKERR(data->layer->GetConfiguration(data->layer, &rconfig));
	SDL_DFB_CHECKERR(data->
	layer->SetCooperativeLevel(data->layer, DLSCL_SHARED));

	if ((config.width != rconfig.width) \|\| (config.height != rconfig.height)
	\|\| ((mode->format != SDL_PIXELFORMAT_UNKNOWN)
	&& (config.pixelformat != rconfig.pixelformat))) {
	SDL_DFB_ERR("Error setting mode %dx%d-%x\n", mode->w, mode->h,
	mode->format);
	return -1;
	}

	data->pixelformat = rconfig.pixelformat;
	data->cw = config.width;
	data->ch = config.height;
	display->current_mode = *mode;

	return 0;
	error:
	return -1;
	}

	void
	DirectFB_QuitModes(_THIS)
	{
	SDL_DisplayMode tmode;
	int i;

	for (i = 0; i < _this->num_displays; ++i) {
	SDL_VideoDisplay *display = &_this->displays[i];
	DFB_DisplayData dispdata = (DFB_DisplayData ) display->driverdata;

	SDL_GetDesktopDisplayMode(i, &tmode);
	tmode.format = SDL_PIXELFORMAT_UNKNOWN;
	DirectFB_SetDisplayMode(_this, display, &tmode);

	SDL_GetDesktopDisplayMode(i, &tmode);
	DirectFB_SetDisplayMode(_this, display, &tmode);

	if (dispdata->layer) {
	SDL_DFB_CHECK(dispdata->
	layer->SetCooperativeLevel(dispdata->layer,
	DLSCL_ADMINISTRATIVE));
	SDL_DFB_CHECK(dispdata->
	layer->SetCursorOpacity(dispdata->layer, 0x00));
	SDL_DFB_CHECK(dispdata->
	layer->SetCooperativeLevel(dispdata->layer,
	DLSCL_SHARED));
	}

	SDL_DFB_RELEASE(dispdata->layer);
	SDL_DFB_RELEASE(dispdata->vidlayer);

	}
	}

	#endif /* SDL_VIDEO_DRIVER_DIRECTFB */

	/* vi: set ts=4 sw=4 expandtab: */