[SDL] SDL_BlitSurface takes longer on 16 Bpp?

[Manuel García Cabrera]

Ulrich Eckhardt escribió:
> On Saturday 05 May 2007 06:15:01 Manuel García Cabrera wrote:
>> Why is that? Same resolution and less bytes per pixel are taking longer
>> to blit. Like 7ms on 32 bpp and 15ms on 16bpp...
> 
> An x86 processor takes longer if you force it to 16 bit accesses instead of 
> the native 32 bits. For your case, it might be semi-forced to do that if the 
> surfaces are misaligned. That said, the only info you gave is the target 
> format, what is still missing is the source format and instructionset your 
> CPU is using.
> 
> Uli
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I receive pixel data of a 16bpp pixel and use SDL_CreateRGBSurfaceFrom.
That would be the source. I blit it to a surface I setted the video mode
to 32 bits, but tried setting it to 16bits too... I have a C2D E6600