vo_sdl.c

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		/*if((strcmp(priv->driver, "dga") == 0) && (priv->mode)) {
			if( mp_msg_test(MSGT_VO,MSGL_V) ) {
				printf("SDL: using software-surface\n"); }
			priv->sdlflags = SDL_SWSURFACE|SDL_FULLSCREEN|SDL_ASYNCBLIT|SDL_HWACCEL|SDL_ANYFORMAT;
			priv->sdlfullflags = SDL_SWSURFACE|SDL_FULLSCREEN|SDL_ASYNCBLIT|SDL_HWACCEL|SDL_ANYFORMAT;
		}	
		else {	*/
			if( mp_msg_test(MSGT_VO,MSGL_V) ) {
	 			mp_msg(MSGT_VO,MSGL_V, "SDL: using hardware-surface\n"); }
			priv->sdlflags = SDL_HWSURFACE|SDL_RESIZABLE/*|SDL_ANYFORMAT*/;
			priv->sdlfullflags = SDL_HWSURFACE|SDL_FULLSCREEN/*|SDL_ANYFORMAT*/;
			// XXX:FIXME: ASYNCBLIT should be enabled for SMP systems
		//}	
	#endif	

#if !defined( AMIGA ) && !defined( MACOSX ) 
	priv->sdlfullflags |= SDL_DOUBLEBUF;	
	if (vo_doublebuffering)
	    priv->sdlflags |= SDL_DOUBLEBUF;
#endif
	
	/* Setup Keyrepeats (500/30 are defaults) */
	SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, 100 /*SDL_DEFAULT_REPEAT_INTERVAL*/);

	/* get information about the graphics adapter */
	vidInfo = SDL_GetVideoInfo ();
	
	/* collect all fullscreen & hardware modes available */
	if (!(priv->fullmodes = SDL_ListModes (vidInfo->vfmt, priv->sdlfullflags))) {

		/* non hardware accelerated fullscreen modes */
		priv->sdlfullflags &= ~SDL_HWSURFACE;
 		priv->fullmodes = SDL_ListModes (vidInfo->vfmt, priv->sdlfullflags);
	}
	
	/* test for normal resizeable & windowed hardware accellerated surfaces */
	if (!SDL_ListModes (vidInfo->vfmt, priv->sdlflags)) {
		
		/* test for NON hardware accelerated resizeable surfaces - poor you. 
		 * That's all we have. If this fails there's nothing left.
		 * Theoretically there could be Fullscreenmodes left - we ignore this for now.
		 */
		priv->sdlflags &= ~SDL_HWSURFACE;
		if ((!SDL_ListModes (vidInfo->vfmt, priv->sdlflags)) && (!priv->fullmodes)) {
			mp_msg(MSGT_VO,MSGL_ERR, MSGTR_LIBVO_SDL_CouldntGetAnyAcceptableSDLModeForOutput);
			return -1;
		}
	}
													
		
   /* YUV overlays need at least 16-bit color depth, but the
    * display might less. The SDL AAlib target says it can only do
    * 8-bits, for example. So, if the display is less than 16-bits,
    * we'll force the BPP to 16, and pray that SDL can emulate for us.
    */
	priv->bpp = vidInfo->vfmt->BitsPerPixel;
	if (priv->mode == YUV && priv->bpp < 16) {

		if( mp_msg_test(MSGT_VO,MSGL_V) )
 		    mp_msg(MSGT_VO,MSGL_V, "SDL: Your SDL display target wants to be at a color "
                           "depth of (%d), but we need it to be at least 16 "
                           "bits, so we need to emulate 16-bit color. This is "
                           "going to slow things down; you might want to "
                           "increase your display's color depth, if possible.\n",
                           priv->bpp);

		priv->bpp = 16;  
	}
	
	/* We don't want those in our event queue. 
	 * We use SDL_KEYUP cause SDL_KEYDOWN seems to cause problems
	 * with keys need to be pressed twice, to be recognized.
	 */
#ifndef BUGGY_SDL
	SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
	SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
//	SDL_EventState(SDL_QUIT, SDL_IGNORE);
	SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
	SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
#endif
	
	/* Success! */
	return 0;
}


/**
 * Close SDL, Cleanups, Free Memory
 *
 *    params : *plugin
 *   returns : non-zero on success, zero on error.
 **/

static int sdl_close (void)
{
	struct sdl_priv_s *priv = &sdl_priv;

	if (priv->fullmode)
	    SDL_ShowCursor(1);

	/* Cleanup YUV Overlay structure */
	if (priv->overlay) {
		SDL_FreeYUVOverlay(priv->overlay);
		priv->overlay=NULL;
	}

	/* Free RGB Surface */
	if (priv->rgbsurface) {
		SDL_FreeSurface(priv->rgbsurface);
		priv->rgbsurface=NULL;
	}

	/* Free our blitting surface */
	if (priv->surface) {
		SDL_FreeSurface(priv->surface);
		priv->surface=NULL;
	}
	
	/* DON'T attempt to free the fullscreen modes array. SDL_Quit* does this for us */
	
	return 0;
}

/**
 * Do aspect ratio calculations
 *
 *   params : srcw == sourcewidth
 *            srch == sourceheight
 *            dstw == destinationwidth
 *            dsth == destinationheight
 *
 *  returns : SDL_Rect structure with new x and y, w and h
 **/

#if 0
static SDL_Rect aspect(int srcw, int srch, int dstw, int dsth) {
	SDL_Rect newres;
	if( mp_msg_test(MSGT_VO,MSGL_V) ) {
	 	mp_msg(MSGT_VO,MSGL_V, "SDL Aspect-Destinationres: %ix%i (x: %i, y: %i)\n", newres.w, newres.h, newres.x, newres.y); }
	newres.h = ((float)dstw / (float)srcw * (float)srch) * ((float)dsth/((float)dstw/(MONITOR_ASPECT)));
	if(newres.h > dsth) {
		newres.w = ((float)dsth / (float)newres.h) * dstw;
		newres.h = dsth;
		newres.x = (dstw - newres.w) / 2;
		newres.y = 0;
	}
	else {
		newres.w = dstw;
		newres.x = 0;
		newres.y = (dsth - newres.h) / 2;
	}
	
	if( mp_msg_test(MSGT_VO,MSGL_V) ) {
		mp_msg(MSGT_VO,MSGL_V, "SDL Mode: %d:  %d x %d\n", i, priv->fullmodes[i]->w, priv->fullmodes[i]->h); }

	return newres;
}
#endif

/**
 * Sets the specified fullscreen mode.
 *
 *   params : mode == index of the desired fullscreen mode
 *  returns : doesn't return
 **/

#if 0
static void set_fullmode (int mode)
{
	struct sdl_priv_s *priv = &sdl_priv;
	SDL_Surface *newsurface = NULL;
	int haspect, waspect = 0;
	
	/* if we haven't set a fullmode yet, default to the lowest res fullmode first */
	if (mode < 0) 
		mode = priv->fullmode = findArrayEnd(priv->fullmodes) - 1;

	/* Calculate proper aspect ratio for fullscreen
	 * Height smaller than expected: add horizontal black bars (haspect)*/
	haspect = (priv->width * (float) ((float) priv->fullmodes[mode]->h / (float) priv->fullmodes[mode]->w) - priv->height) * (float) ((float) priv->fullmodes[mode]->w / (float) priv->width);
	/* Height bigger than expected: add vertical black bars (waspect)*/
	if (haspect < 0) {
		haspect = 0; /* set haspect to zero because image will be scaled horizontal instead of vertical */
		waspect = priv->fullmodes[mode]->w - ((float) ((float) priv->fullmodes[mode]->h / (float) priv->height) * (float) priv->width);
	}	
//	printf ("W-Aspect: %i  H-Aspect: %i\n", waspect, haspect);
	
	/* change to given fullscreen mode and hide the mouse cursor */
	newsurface = SDL_SetVideoMode(priv->fullmodes[mode]->w - waspect, priv->fullmodes[mode]->h - haspect, priv->bpp, priv->sdlfullflags);
	
	/* if we were successfull hide the mouse cursor and save the mode */
	if (newsurface) {
		if (priv->surface)
	    	    SDL_FreeSurface(priv->surface);
		priv->surface = newsurface;
		SDL_ShowCursor(0);
	}
}
#endif

/* Set video mode. Not fullscreen */
static void set_video_mode(int width, int height, int bpp, uint32_t sdlflags)
{
	struct sdl_priv_s *priv = &sdl_priv;
    SDL_Surface* newsurface;    

    if(priv->rgbsurface)
	SDL_FreeSurface(priv->rgbsurface);
    else if(priv->overlay)
	SDL_FreeYUVOverlay(priv->overlay);
 
    priv->rgbsurface = NULL;
    priv->overlay = NULL;
 
    newsurface = SDL_SetVideoMode(width, height, bpp, sdlflags);

    if(newsurface) {

        /* priv->surface will be NULL the first time this function is called. */
        if(priv->surface)
            SDL_FreeSurface(priv->surface);

        priv->surface = newsurface;
        priv->dstwidth = width;
        priv->dstheight = height;

        setup_surfaces();
    }
    else
        mp_msg(MSGT_VO,MSGL_WARN, "set_video_mode: SDL_SetVideoMode failed: %s\n", SDL_GetError());
}

static void set_fullmode (int mode) {
	struct sdl_priv_s *priv = &sdl_priv;
	SDL_Surface *newsurface = NULL;
 	int screen_surface_w, screen_surface_h;
	
 	if(priv->rgbsurface)
	        SDL_FreeSurface(priv->rgbsurface);
 	else if(priv->overlay)
	        SDL_FreeYUVOverlay(priv->overlay);
 
 	priv->rgbsurface = NULL;
 	priv->overlay = NULL;
 
	/* if we haven't set a fullmode yet, default to the lowest res fullmode first */
	/* But select a mode where the full video enter */
	if(priv->X && priv->fulltype & VOFLAG_FULLSCREEN) {
		screen_surface_w = priv->XWidth;
		screen_surface_h = priv->XHeight;
	}
	else if (mode < 0) {
        int i,j,imax;
		mode = 0; // Default to the biggest mode avaible
		if ( mp_msg_test(MSGT_VO,MSGL_V) ) for(i=0;priv->fullmodes[i];++i)
 	           mp_msg(MSGT_VO,MSGL_V, "SDL Mode: %d:  %d x %d\n", i, priv->fullmodes[i]->w, priv->fullmodes[i]->h);
		for(i = findArrayEnd(priv->fullmodes) - 1; i >=0; i--) {
		  if( (priv->fullmodes[i]->w >= priv->dstwidth) && 
		      (priv->fullmodes[i]->h >= priv->dstheight) ) {
		      imax = i;
		      for (j = findArrayEnd(priv->fullmodes) - 1; j >=0; j--) {
			  if (priv->fullmodes[j]->w > priv->fullmodes[imax]->w
			      && priv->fullmodes[j]->h == priv->fullmodes[imax]->h)
			      imax = j;
		      }
		      mode = imax;
		      break;
		    }
		  }
		if ( mp_msg_test(MSGT_VO,MSGL_V) ) {
			mp_msg(MSGT_VO,MSGL_V, "SET SDL Mode: %d:  %d x %d\n", mode, priv->fullmodes[mode]->w, priv->fullmodes[mode]->h); }
		priv->fullmode = mode;
        screen_surface_h = priv->fullmodes[mode]->h;
        screen_surface_w = priv->fullmodes[mode]->w;
	}
    else {
       screen_surface_h = priv->fullmodes[mode]->h;
       screen_surface_w = priv->fullmodes[mode]->w;
	}
	
	aspect_save_screenres(screen_surface_w, screen_surface_h);

	/* calculate new video size/aspect */
	if(priv->mode == YUV) {
        if(priv->fulltype&VOFLAG_FULLSCREEN)
		aspect_save_screenres(priv->XWidth, priv->XHeight);

        aspect(&priv->dstwidth, &priv->dstheight, A_ZOOM);
	}

	/* try to change to given fullscreenmode */
	newsurface = SDL_SetVideoMode(priv->dstwidth, screen_surface_h, priv->bpp,
                                  priv->sdlfullflags);

	/*
	 * In Mac OS X (and possibly others?) SDL_SetVideoMode() appears to 
	 * destroy the datastructure previously retrived, so we need to 
	 * re-assign it.  The comment in sdl_close() seems to imply that we 
	 * should not free() anything.
	 */
	#ifdef SYS_DARWIN
	{
	const SDL_VideoInfo *vidInfo = NULL;
	vidInfo = SDL_GetVideoInfo ();

	/* collect all fullscreen & hardware modes available */
	if (!(priv->fullmodes = SDL_ListModes (vidInfo->vfmt, priv->sdlfullflags))) {

	    /* non hardware accelerated fullscreen modes */
	    priv->sdlfullflags &= ~SDL_HWSURFACE;
	    priv->fullmodes = SDL_ListModes (vidInfo->vfmt, priv->sdlfullflags);
	}
	}
	#endif


	
	/* if creation of new surface was successfull, save it and hide mouse cursor */
	if(newsurface) {
		if (priv->surface)
	    	    SDL_FreeSurface(priv->surface);
		priv->surface = newsurface;
		SDL_ShowCursor(0);
        SDL_SRF_LOCK(priv->surface, -1)
        SDL_FillRect(priv->surface, NULL, 0);
        SDL_SRF_UNLOCK(priv->surface)
        setup_surfaces();
	}		
    else
        mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_SDL_SetVideoModeFailedFull, SDL_GetError());
}


/**
 * Initialize an SDL surface and an SDL YUV overlay.
 *
 *    params : width  == width of video we'll be displaying.
 *             height == height of video we'll be displaying.
 *             fullscreen == want to be fullscreen?
 *             title == Title for window titlebar.
 *   returns : non-zero on success, zero on error.
 **/

static int
config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
//static int sdl_setup (int width, int height)
{
	struct sdl_priv_s *priv = &sdl_priv;

    switch(format){
        case IMGFMT_I420:
            mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_SDL_MappingI420ToIYUV);
            format = SDL_IYUV_OVERLAY;
		case IMGFMT_YV12:
		case IMGFMT_IYUV:
		case IMGFMT_YUY2:
		case IMGFMT_UYVY:
		case IMGFMT_YVYU:
            priv->mode = YUV;
            break;
		case IMGFMT_BGR15:	
		case IMGFMT_BGR16:	
		case IMGFMT_BGR24:	
		case IMGFMT_BGR32:	
			priv->mode = BGR;
			break;
        case IMGFMT_RGB15:	
        case IMGFMT_RGB16:	
        case IMGFMT_RGB24:	
		case IMGFMT_RGB32:	
			priv->mode = RGB;
			break;
		default:
 			mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_SDL_UnsupportedImageFormat,format);
			return -1;
	}

    if ( vo_config_count ) sdl_close();

    if( mp_msg_test(MSGT_VO,MSGL_V) ) {
      mp_msg(MSGT_VO,MSGL_V, "SDL: Using 0x%X (%s) image format\n", format, vo_format_name(format)); }
    
    if(priv->mode != YUV) {
		priv->sdlflags |= SDL_ANYFORMAT;
		priv->sdlfullflags |= SDL_ANYFORMAT;
	}

    /* SDL can only scale YUV data */
    if(priv->mode == RGB || priv->mode == BGR) {
        d_width = width;
        d_height = height;
    }

    aspect_save_orig(width,height);
	aspect_save_prescale(d_width ? d_width : width, d_height ? d_height : height);

	/* Save the original Image size */
    priv->width  = width;
    priv->height = height;
    priv->dstwidth  = d_width ? d_width : width;
    priv->dstheight = d_height ? d_height : height;

    priv->format = format;
    
	if (sdl_open(NULL, NULL) != 0)
	    return -1;

	/* Set output window title */
	SDL_WM_SetCaption (".: MPlayer : F = Fullscreen/Windowed : C = Cycle Fullscreen Resolutions :.", title);
	//SDL_WM_SetCaption (title, title);

    if(priv->X) {
	aspect_save_screenres(priv->XWidth,priv->XHeight);
	aspect(&priv->dstwidth,&priv->dstheight,A_NOZOOM);
    }
    
	priv->windowsize.w = priv->dstwidth;
  	priv->windowsize.h = priv->dstheight;
        
	/* bit 0 (0x01) means fullscreen (-fs)
	 * bit 1 (0x02) means mode switching (-vm)
	 * bit 2 (0x04) enables software scaling (-zoom)
	 * bit 3 (0x08) enables flipping (-flip)
	 */
//      printf("SDL: flags are set to: %i\n", flags);
//	printf("SDL: Width: %i Height: %i D_Width %i D_Height: %i\n", width, height, d_width, d_height);
	if(flags&VOFLAG_FLIPPING) {
		if( mp_msg_test(MSGT_VO,MSGL_V) ) {
			mp_msg(MSGT_VO,MSGL_V, "SDL: using flipped video (only with RGB/BGR/packed YUV)\n"); }
		priv->flip = 1; 
	}
	if(flags&VOFLAG_FULLSCREEN) {
	  	if( mp_msg_test(MSGT_VO,MSGL_V) ) {
 	  	    mp_msg(MSGT_VO,MSGL_V, "SDL: setting zoomed fullscreen without modeswitching\n");}