[SDL] ANNOUNCE: PrBoom 2.2.3 released
florian.proff.schulze at gmx.net
Sat Jul 27 15:50:01 PDT 2002
On Tue, 2002-07-16 at 13:11, Carlos wrote:
> #if SDL_BYTEORDER == SDL_BIG_ENDIAN //setup mask colors
> rmask = 0xff000000;
> gmask = 0x00ff0000;
> bmask = 0x0000ff00;
> amask = 0x000000ff;
> rmask = 0x000000ff;
> gmask = 0x0000ff00;
> bmask = 0x00ff0000;
> amask = 0xff000000;
These are bitmasks for 32bit bitmaps...
> test = SDL_CreateRGBSurface(SDL_SWSURFACE,100,100,16,rmask,gmask,bmask,amask);
And you are passing the to a 16bit bitmap.
test = SDL_CreateRGBSurface(SDL_SWSURFACE,100,100,16,
You should also remeber some other details (maybe they are only missing
because it's a test program):
The most important thing is that almost any target supports HWSURFACEs
or DBUFFERing on a windowed context, so you will not get what you want
from your SDL_SetVideoMode call. Also, on windowed apps, if you can,
stick to the desktop display pixelformat, otherwise you can have big
performance losses. You only have to specify depth = 0 to obtain this.
Remember to use:
Check the SDL_Init() returncode, if it's <0 it's quite sure you cannot
obtain what you ask from SDL so you have to abort...
If you use exit() to quit the program add:
just after a successfull SDL_Init();
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