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N
ffmpeg-0.6.3
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${ noResults }
2 Commits (2b43dfce3651bc517c66365a30f30b708d6b79af)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Christophe Gisquet
|
e5c9de2ab7 |
rv40: x86 SIMD for biweight
Provide MMX, SSE2 and SSSE3 versions, with a fast-path when the weights are multiples of 512 (which is often the case when the values round up nicely). *_TIMER report for the 16x16 and 8x8 cases: C: 9015 decicycles in 16, 524257 runs, 31 skips 2656 decicycles in 8, 524271 runs, 17 skips MMX: 4156 decicycles in 16, 262090 runs, 54 skips 1206 decicycles in 8, 262131 runs, 13 skips MMX on fast-path: 2760 decicycles in 16, 524222 runs, 66 skips 995 decicycles in 8, 524252 runs, 36 skips SSE2: 2163 decicycles in 16, 262131 runs, 13 skips 832 decicycles in 8, 262137 runs, 7 skips SSE2 with fast path: 1783 decicycles in 16, 524276 runs, 12 skips 711 decicycles in 8, 524283 runs, 5 skips SSSE3: 2117 decicycles in 16, 262136 runs, 8 skips 814 decicycles in 8, 262143 runs, 1 skips SSSE3 with fast path: 1315 decicycles in 16, 524285 runs, 3 skips 578 decicycles in 8, 524286 runs, 2 skips This means around a 4% speedup for some sequences. Signed-off-by: Diego Biurrun <diego@biurrun.de> |
13 years ago |
Diego Biurrun
|
91bafb52ae |
x86: Give RV40 init file a more suitable name.
|
13 years ago |
|
Diego Biurrun
|
c30b198381 |
x86: Place mm_flags variable declaration below the appropriate #ifdef.
This fixes some unused variable warnings with YASM disabled. |
13 years ago |
Kostya Shishkov
|
d241f51e0f |
Move RV3/4-specific DSP functions into their own context
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com> |
14 years ago |