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| author | John Koleszar <jkoleszar@google.com> | 2011-05-02 06:50:22 -0700 |
|---|---|---|
| committer | Code Review <code-review@webmproject.org> | 2011-05-02 06:50:22 -0700 |
| commit | c09d8c14196d82d7d2bb2dd9c301ca8283445771 (patch) | |
| tree | a904b12ca2e677b9d2f545c8eee8c6e5d7d922ee | |
| parent | a66d8d33ddadf22c9ed127d5766ca0acf108dbef (diff) | |
| parent | 8942f70cdf823e79b703985b8ae35c6af029dab8 (diff) | |
| download | libvpx-c09d8c14196d82d7d2bb2dd9c301ca8283445771.tar libvpx-c09d8c14196d82d7d2bb2dd9c301ca8283445771.tar.gz libvpx-c09d8c14196d82d7d2bb2dd9c301ca8283445771.tar.bz2 libvpx-c09d8c14196d82d7d2bb2dd9c301ca8283445771.zip | |
Merge "Fix documentation typos"
| -rw-r--r-- | vp8/common/x86/idctllm_mmx.asm | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/vp8/common/x86/idctllm_mmx.asm b/vp8/common/x86/idctllm_mmx.asm index 43735bc4b..465626b8f 100644 --- a/vp8/common/x86/idctllm_mmx.asm +++ b/vp8/common/x86/idctllm_mmx.asm @@ -14,18 +14,18 @@ ; /**************************************************************************** ; * Notes: ; * -; * This implementation makes use of 16 bit fixed point verio of two multiply +; * This implementation makes use of 16 bit fixed point version of two multiply ; * constants: ; * 1. sqrt(2) * cos (pi/8) -; * 2. sqrt(2) * sin (pi/8) -; * Becuase the first constant is bigger than 1, to maintain the same 16 bit -; * fixed point prrcision as the second one, we use a trick of +; * 2. sqrt(2) * sin (pi/8) +; * Because the first constant is bigger than 1, to maintain the same 16 bit +; * fixed point precision as the second one, we use a trick of ; * x * a = x + x*(a-1) ; * so ; * x * sqrt(2) * cos (pi/8) = x + x * (sqrt(2) *cos(pi/8)-1). ; * -; * For the second constant, becuase of the 16bit version is 35468, which -; * is bigger than 32768, in signed 16 bit multiply, it become a negative +; * For the second constant, because of the 16bit version is 35468, which +; * is bigger than 32768, in signed 16 bit multiply, it becomes a negative ; * number. ; * (x * (unsigned)35468 >> 16) = x * (signed)35468 >> 16 + x ; * |