FFmpeg

Commit Graph

Author	SHA1	Message	Date
Diego Biurrun	55519926ef	x86: Make function prototype comments in assembly code consistent This helps grepping for functions, among other things.	11 years ago
Diego Biurrun	e2b5b09789	x86: rv40dsp: Use PAVGB instruction macro where appropriate	11 years ago
Thilo Borgmann	d814a839ac	Reinstate proper FFmpeg license for all files.	12 years ago
Diego Biurrun	26301caaa1	x86: mmx2 ---> mmxext in asm constructs	12 years ago
Diego Biurrun	04581c8c77	x86: yasm: Use complete source path for macro helper %includes This is more consistent with the way we handle C #includes and it simplifies the build system.	12 years ago
Diego Biurrun	6860b4081d	x86: include x86inc.asm in x86util.asm This is necessary to allow refactoring some x86util macros with cpuflags.	12 years ago
Mans Rullgard	2b140a3d09	x86: use 32-bit source registers with movd instruction yasm tolerates mismatch between movd/movq and source register size, adjusting the instruction according to the register. nasm is more strict. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Michael Kostylev	6797d1948b	x86: rv40: Mark rv40_weight functions as MMX2; they use MMX2 instructions.	13 years ago
Christophe Gisquet	110d0cdc9d	rv40dsp x86: MMX/MMX2/3DNow/SSE2/SSSE3 implementations of MC Code mostly inspired by vp8's MC, however: - its MMX2 horizontal filter is worse because it can't take advantage of the coefficient redundancy - that same coefficient redundancy allows better code for non-SSSE3 versions Benchmark (rounded to tens of unit): V8x8 H8x8 2D8x8 V16x16 H16x16 2D16x16 C 445 358 985 1785 1559 3280 MMX* 219 271 478 714 929 1443 SSE2 131 158 294 425 515 892 SSSE3 120 122 248 387 390 763 End result is overall around a 15% speedup for SSSE3 version (on 6 sequences); all loop filter functions now take around 55% of decoding time, while luma MC dsp functions are around 6%, chroma ones are 1.3% and biweight around 2.3%. Signed-off-by: Diego Biurrun <diego@biurrun.de>	13 years ago
Christophe GISQUET	2130bd8f5b	rv40dsp x86: use only one register, for both increment and loop counter Around 10 cycles faster for luma. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Christophe GISQUET	272b252c01	rv40dsp: implement prescaled versions for biweight. Quite often, the original weights are multiple of 512. By prescaling them by 1/512 when they are computed (once per frame), no intermediate shifting is needed, and no prescaling on each call either. The x86 code already used that trick. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Reimar Döffinger	da1ba4e88b	Fix NASM compilation. movd needs explicit register size prefix for NASM. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	13 years ago
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

14 Commits (7ef8d97b1aa9e142527debcaf993aa1ee8f08a9b)