diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2011-10-23 23:36:06 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-10-23 23:36:06 +0200 |
| commit | 9eb867e11790ec4e30662244954c8f20dac99def (patch) | |
| tree | 7373f31959fba1f64d57b64d5326b4ec3598e2db /libswscale | |
| parent | f4bf06eb96c8492754f66e7fca77fe98ae800aad (diff) | |
sws: add yuv2yuvX_sse3()
Code is about 2x as fast as previous
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libswscale')
| -rw-r--r-- | libswscale/x86/swscale_mmx.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libswscale/x86/swscale_mmx.c b/libswscale/x86/swscale_mmx.c index 99d9053d79..6053310bb8 100644 --- a/libswscale/x86/swscale_mmx.c +++ b/libswscale/x86/swscale_mmx.c @@ -176,6 +176,62 @@ void updateMMXDitherTables(SwsContext *c, int dstY, int lumBufIndex, int chrBufI } } +static void yuv2yuvX_sse3(const int16_t *filter, int filterSize, + const int16_t **src, uint8_t *dest, int dstW, + const uint8_t *dither, int offset) +{ + if (offset) { + __asm__ volatile("movq (%0), %%xmm3\n\t" + "movdqa %%xmm3, %%xmm4\n\t" + "psrlq $24, %%xmm3\n\t" + "psllq $40, %%xmm4\n\t" + "por %%xmm4, %%xmm3\n\t" + :: "r"(dither) + ); + } else { + __asm__ volatile("movq (%0), %%xmm3\n\t" + :: "r"(dither) + ); + } + __asm__ volatile( + "pxor %%xmm0, %%xmm0\n\t" + "punpcklbw %%xmm0, %%xmm3\n\t" + "psraw $4, %%xmm3\n\t" + "movdqa %%xmm3, %%xmm4\n\t" + "movdqa %%xmm3, %%xmm7\n\t" + "movl %3, %%ecx\n\t" + "mov %0, %%"REG_d" \n\t"\ + "mov (%%"REG_d"), %%"REG_S" \n\t"\ + ".p2align 4 \n\t" /* FIXME Unroll? */\ + "1: \n\t"\ + "movddup 8(%%"REG_d"), %%xmm0 \n\t" /* filterCoeff */\ + "movdqa (%%"REG_S", %%"REG_c", 2), %%xmm2 \n\t" /* srcData */\ + "movdqa 16(%%"REG_S", %%"REG_c", 2), %%xmm5 \n\t" /* srcData */\ + "add $16, %%"REG_d" \n\t"\ + "mov (%%"REG_d"), %%"REG_S" \n\t"\ + "test %%"REG_S", %%"REG_S" \n\t"\ + "pmulhw %%xmm0, %%xmm2 \n\t"\ + "pmulhw %%xmm0, %%xmm5 \n\t"\ + "paddw %%xmm2, %%xmm3 \n\t"\ + "paddw %%xmm5, %%xmm4 \n\t"\ + " jnz 1b \n\t"\ + "psraw $3, %%xmm3 \n\t"\ + "psraw $3, %%xmm4 \n\t"\ + "packuswb %%xmm4, %%xmm3 \n\t" + "movntdq %%xmm3, (%1, %%"REG_c")\n\t" + "add $16, %%"REG_c" \n\t"\ + "cmp %2, %%"REG_c" \n\t"\ + "movdqa %%xmm7, %%xmm3\n\t" + "movdqa %%xmm7, %%xmm4\n\t" + "mov %0, %%"REG_d" \n\t"\ + "mov (%%"REG_d"), %%"REG_S" \n\t"\ + "jb 1b \n\t"\ + :: "g" (filter), + "r" (dest-offset), "g" ((x86_reg)(dstW+offset)), "m" (offset) + : "%"REG_d, "%"REG_S, "%"REG_c + ); +} + #define SCALE_FUNC(filter_n, from_bpc, to_bpc, opt) \ extern void ff_hscale ## from_bpc ## to ## to_bpc ## _ ## filter_n ## _ ## opt( \ SwsContext *c, int16_t *data, \ @@ -239,6 +295,10 @@ void ff_sws_init_swScale_mmx(SwsContext *c) #if HAVE_MMX2 if (cpu_flags & AV_CPU_FLAG_MMX2) sws_init_swScale_MMX2(c); + if (cpu_flags & AV_CPU_FLAG_SSE3){ + if(c->use_mmx_vfilter && !(c->flags & SWS_ACCURATE_RND)) + c->yuv2planeX = yuv2yuvX_sse3; + } #endif #if HAVE_YASM |