[SDL] hardware alpha & colorkey support

sapsan sapsan at rv.uar.net
Tue Jan 25 14:36:07 PST 2005


Stephane Marchesin wrote:

> sapsan wrote:
>
>> Stephane Marchesin wrote:
>>
>>> sapsan wrote:
>>>
>>>> There are some really annoying questions(as for game development 
>>>> process):
>>>> 1)" Does current SDL version has hardware alpha blitting(i mean 
>>>> about hardware per pixel alpha support)?"; 
>>>
>>>
>>>
>>>
>>> No, because of a bug in SDL.
>>>
>>> No backend currently has support for hardware accelerated alpha.
>>> However, there is a fix for the bug and a backend (glSDL) that does 
>>> hw accelerated alpha in this tarball :
>>> http://icps.u-strasbg.fr/~marchesin/sdl/SDL12-experimental.tgz
>>>
>> Sorry for my english again.
>
>
> Hehe :) no problem, I don't think mine is perfect either.
>
>>
>> Tnx, but I got error, when try to compile SDL.dll in Borland C++ 
>> Builder 6:
>>
>> [Linker Error] Unresolved external '_SDL_HasMMX' referenced from 
>> D:\PROJECTS\TOOLS\SDL\PATCH\SDL12.EXPERIMENTAL\SRC\VIDEO\SDL_BLIT_N.OBJ
>>
>> What I must to do? (Because I am a pure pascal programmer :()
>
>
> You need to add the SDL12/src/cpuinfo/SDL_cpuinfo.c to the borland C 
> project.
> If you do so, _please_ send the modified project files here (or to me 
> by mail if they are too big and you have nowhere to put them). That 
> problem affects other people so it would be nice.
>
OK.






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