[SDL] Blit effects

[Mason Wheeler]

...which sort of defeats the purpose of having a framework for easy access to hardware acceleration.  Is this on the list of "stuff that will be in SDL 1.3"?  These effects are pretty standard functions which are in all sorts of other graphics frameworks, and I was surprised not to find anything for them in SDL.

----- Original Message ----
From: Bill Kendrick <nbs at sonic.net>

On Mon, Mar 17, 2008 at 12:47:17PM -0700, Mason Wheeler wrote:
>>When blitting an image, how do you do special effects?  For example, it's easy to do a direct copy, an 
>>alpha-blended copy or a color-keyed copy, but what if I wanted to use effects such as Add, Multiply,
>>Maximum, etc?  How do I set those up?

>Right now, you do them yourself on a per-pixel-basis, I believe.