[SDL] Performance questions from a MacOS X user

[jeroen clarysse]

> i dont think SDL 1.2 uses hardware vram for windowed apps, only full  
> screen.... not sure though.
>
> i think there was some talk about improvements with version 1.3; as  
> that would use opengl textures.

and how about the windows version with directX ? Does that library  
store its stuff in VRam ? I know that, using plain DirectX , its  
fairly easy to allocate a surface in hardware...

does someone have knowledge of how the blitting can be done in  
hardware is the images are not in vram ?