[SDL] SDL/OpenGL and texture mapping.

Joseph Carter knghtbrd at bluecherry.net
Wed Sep 11 04:29:01 PDT 2002


On Wed, Sep 11, 2002 at 01:16:53PM +0800, paul at theV.net wrote:
> My guess the problem of using surfaces returned by SDL_LoadBMP()
> or IMG_Load() as GL texture source is mainly something to do with
> different surface encoding format. SDL may not return the ideal 
> RGB or RGBA format that GL expects. It is the same reason why a 
> SDL_DisplayFormat() or SDL_DisplayFormatAlpha() would speed up 
> blitting to the main screen surface. I am not very sure after you
> enable OpenGL with SDL, SDL_DisplayFormat() will do the right 
> conversion work to ease texture loading for you... can somebody
> verify and confirm this?

I can refute it.  I raised this issue, Sam asked me to submit a patch, and
it seems to have gotten lost in the list noise.

-- 
Joseph Carter <knghtbrd at bluecherry.net>            No conceit in my family
 
* Caytln slaps Lisa
<Caytln> catfight :P
<LisaHere> Watch it girl, I like that.
<LisaHere> :)
<Caytln> figures :D

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