AltiVec SIMD implementation of slow integer forward DCT;  Clean up fast integer forward DCT code so that it is easier to see how it derives from the SSE2 code and to make it play more nicely with the slow FDCT code.


git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1443 632fc199-4ca6-4c93-a231-07263d6284db
3 files changed