[theora] Taking advantage of SIMD

[Manolache Adrian]

After creating a simple decoder for theora using liboggz i started profiling. As someone else stated in the lists the conversion from yuv 2 rgb takes a significant time. I decided to go on the way of SIMD not shaders because SIMD is supported on a wider range of computers. I managed to strip out the yuv 2 rgba conversion code from liboggplay but it seems i am missing something. It runs but the image is distorted, like this: 

http://www.gamesrebirth.com/adrian/graphics/distorted.JPG

The code looks like this(only a few lines):

http://pastebin.com/m185d7b76

Thanks,
   Adrian



      
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