[SDL] Sharing a surface

[Brian Edmond]

Thanks for the info.

Why not use HW surfaces for blending?  If the hardware can support a blit 
with alpha then this would be accelerated.  If the blit does not support 
alpha then I see why you would not want to use a HW surface with a blend.  I 
suppose it depends on the particular implementation on the backend correct? 
I will have to look to see if HW alpha is a capability you can query.

Thanks,

Brian

"Tim Goya" <tuxdev103 at gmail.com> wrote in message 
news:ff70c5070711170842q6ede06ev175862f647ca7869 at mail.gmail.com...
> You can try allocating shared memory for the pixel buffer, then
> generate a SDL_Surface from it by calling SDL_CreateRGBSurfaceFrom.
> It isn't a HW surface, but you shouldn't use HW surfaces anyway when
> blending.
>
> Tim