1static SDL_Surface * GFX_SetupSurfaceScaled(Bit32u flags, Bit32u bpp)
2{
3	// Assume that the mode is not fullscreen (update if required)
4	Bit16u width   = sdl.draw.width * sdl.draw.scalex; 
5	Bit16u height  = sdl.draw.height * sdl.draw.scaley; 
6	flags         |= SDL_HWSURFACE;
7
8	// Update width/height according to fullscreen
9	if (sdl.desktop.fullscreen)
10	{
11		width  = sdl.desktop.full.width;
12		height = sdl.desktop.full.height;
13		flags |= SDL_FULLSCREEN;
14	}
15	
16	sdl.clip.w = width;
17	sdl.clip.h = height;
18
19	// Update clipping according to fixed fullscreen
20	if (sdl.desktop.fullscreen and sdl.desktop.full.fixed)
21	{
22		double ratio_w = double(width)  / (sdl.draw.width  * sdl.draw.scalex);
23		double ratio_h = double(height) / (sdl.draw.height * sdl.draw.scaley);
24		if (ratio_w < ratio_h)
25			sdl.clip.h = sdl.draw.height * sdl.draw.scaley * ratio_w;
26		else
27			sdl.clip.w = sdl.draw.width * sdl.draw.scalex * ratio_h;
28	}
29
30	// Get the surface
31	sdl.surface = SDL_SetVideoMode(width, height, bpp, flags);
32
33	// Update clipping coordinates
34	if (sdl.surface)
35	{
36		sdl.clip.x = (sdl.surface->w - sdl.clip.w) / 2;
37		sdl.clip.y = (sdl.surface->h - sdl.clip.h) / 2;
38	}
39
40	return sdl.surface;
41}