mirror of
https://github.com/FFmpeg/FFmpeg.git
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swscale: move yuv2yuvX_sse3 to yasm, unrolls main loop
And other small optimizations for ~20% speedup.
This commit is contained in:
Alan Kelly
Paul B Mahol
parent
1628409b18
commit
554c2bc708
@ -13,3 +13,4 @@ X86ASM-OBJS += x86/input.o \
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x86/scale.o \
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x86/rgb_2_rgb.o \
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x86/yuv_2_rgb.o \
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x86/yuv2yuvX.o \
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@ -63,6 +63,16 @@ DECLARE_ASM_ALIGNED(8, const uint64_t, ff_bgr2UVOffset) = 0x8080808080808080ULL;
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DECLARE_ASM_ALIGNED(8, const uint64_t, ff_w1111) = 0x0001000100010001ULL;
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#define YUV2YUVX_FUNC_DECL(opt) \
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static void yuv2yuvX_ ##opt(const int16_t *filter, int filterSize, const int16_t **src, \
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uint8_t *dest, int dstW, \
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const uint8_t *dither, int offset); \
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YUV2YUVX_FUNC_DECL(mmx)
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YUV2YUVX_FUNC_DECL(mmxext)
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YUV2YUVX_FUNC_DECL(sse3)
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YUV2YUVX_FUNC_DECL(avx2)
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//MMX versions
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#if HAVE_MMX_INLINE
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#undef RENAME
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@ -198,81 +208,44 @@ void ff_updateMMXDitherTables(SwsContext *c, int dstY)
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}
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#if HAVE_MMXEXT
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static void yuv2yuvX_sse3(const int16_t *filter, int filterSize,
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const int16_t **src, uint8_t *dest, int dstW,
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const uint8_t *dither, int offset)
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{
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if(((uintptr_t)dest) & 15){
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yuv2yuvX_mmxext(filter, filterSize, src, dest, dstW, dither, offset);
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return;
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}
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filterSize--;
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#define MAIN_FUNCTION \
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"pxor %%xmm0, %%xmm0 \n\t" \
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"punpcklbw %%xmm0, %%xmm3 \n\t" \
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"movd %4, %%xmm1 \n\t" \
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"punpcklwd %%xmm1, %%xmm1 \n\t" \
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"punpckldq %%xmm1, %%xmm1 \n\t" \
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"punpcklqdq %%xmm1, %%xmm1 \n\t" \
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"psllw $3, %%xmm1 \n\t" \
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"paddw %%xmm1, %%xmm3 \n\t" \
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"psraw $4, %%xmm3 \n\t" \
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"movdqa %%xmm3, %%xmm4 \n\t" \
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"movdqa %%xmm3, %%xmm7 \n\t" \
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"movl %3, %%ecx \n\t" \
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"mov %0, %%"FF_REG_d" \n\t"\
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"mov (%%"FF_REG_d"), %%"FF_REG_S" \n\t"\
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".p2align 4 \n\t" /* FIXME Unroll? */\
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"1: \n\t"\
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"movddup 8(%%"FF_REG_d"), %%xmm0 \n\t" /* filterCoeff */\
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"movdqa (%%"FF_REG_S", %%"FF_REG_c", 2), %%xmm2 \n\t" /* srcData */\
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"movdqa 16(%%"FF_REG_S", %%"FF_REG_c", 2), %%xmm5 \n\t" /* srcData */\
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"add $16, %%"FF_REG_d" \n\t"\
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"mov (%%"FF_REG_d"), %%"FF_REG_S" \n\t"\
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"test %%"FF_REG_S", %%"FF_REG_S" \n\t"\
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"pmulhw %%xmm0, %%xmm2 \n\t"\
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"pmulhw %%xmm0, %%xmm5 \n\t"\
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"paddw %%xmm2, %%xmm3 \n\t"\
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"paddw %%xmm5, %%xmm4 \n\t"\
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" jnz 1b \n\t"\
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"psraw $3, %%xmm3 \n\t"\
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"psraw $3, %%xmm4 \n\t"\
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"packuswb %%xmm4, %%xmm3 \n\t"\
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"movntdq %%xmm3, (%1, %%"FF_REG_c") \n\t"\
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"add $16, %%"FF_REG_c" \n\t"\
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"cmp %2, %%"FF_REG_c" \n\t"\
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"movdqa %%xmm7, %%xmm3 \n\t" \
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"movdqa %%xmm7, %%xmm4 \n\t" \
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"mov %0, %%"FF_REG_d" \n\t"\
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"mov (%%"FF_REG_d"), %%"FF_REG_S" \n\t"\
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"jb 1b \n\t"
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if (offset) {
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__asm__ volatile(
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"movq %5, %%xmm3 \n\t"
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"movdqa %%xmm3, %%xmm4 \n\t"
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"psrlq $24, %%xmm3 \n\t"
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"psllq $40, %%xmm4 \n\t"
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"por %%xmm4, %%xmm3 \n\t"
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MAIN_FUNCTION
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:: "g" (filter),
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"r" (dest-offset), "g" ((x86_reg)(dstW+offset)), "m" (offset),
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"m"(filterSize), "m"(((uint64_t *) dither)[0])
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: XMM_CLOBBERS("%xmm0" , "%xmm1" , "%xmm2" , "%xmm3" , "%xmm4" , "%xmm5" , "%xmm7" ,)
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"%"FF_REG_d, "%"FF_REG_S, "%"FF_REG_c
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);
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} else {
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__asm__ volatile(
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"movq %5, %%xmm3 \n\t"
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MAIN_FUNCTION
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:: "g" (filter),
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"r" (dest-offset), "g" ((x86_reg)(dstW+offset)), "m" (offset),
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"m"(filterSize), "m"(((uint64_t *) dither)[0])
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: XMM_CLOBBERS("%xmm0" , "%xmm1" , "%xmm2" , "%xmm3" , "%xmm4" , "%xmm5" , "%xmm7" ,)
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"%"FF_REG_d, "%"FF_REG_S, "%"FF_REG_c
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);
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}
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#define YUV2YUVX_FUNC_MMX(opt, step) \
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void ff_yuv2yuvX_ ##opt(const int16_t *filter, int filterSize, int srcOffset, \
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uint8_t *dest, int dstW, \
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const uint8_t *dither, int offset); \
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static void yuv2yuvX_ ##opt(const int16_t *filter, int filterSize, \
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const int16_t **src, uint8_t *dest, int dstW, \
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const uint8_t *dither, int offset) \
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{ \
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ff_yuv2yuvX_ ##opt(filter, filterSize - 1, 0, dest - offset, dstW + offset, dither, offset); \
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return; \
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}
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#define YUV2YUVX_FUNC(opt, step) \
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void ff_yuv2yuvX_ ##opt(const int16_t *filter, int filterSize, int srcOffset, \
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uint8_t *dest, int dstW, \
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const uint8_t *dither, int offset); \
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static void yuv2yuvX_ ##opt(const int16_t *filter, int filterSize, \
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const int16_t **src, uint8_t *dest, int dstW, \
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const uint8_t *dither, int offset) \
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{ \
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int remainder = (dstW % step); \
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int pixelsProcessed = dstW - remainder; \
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if(((uintptr_t)dest) & 15){ \
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yuv2yuvX_mmx(filter, filterSize, src, dest, dstW, dither, offset); \
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return; \
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} \
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ff_yuv2yuvX_ ##opt(filter, filterSize - 1, 0, dest - offset, pixelsProcessed + offset, dither, offset); \
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if(remainder > 0){ \
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ff_yuv2yuvX_mmx(filter, filterSize - 1, pixelsProcessed, dest - offset, pixelsProcessed + remainder + offset, dither, offset); \
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} \
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return; \
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}
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YUV2YUVX_FUNC_MMX(mmx, 16)
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YUV2YUVX_FUNC_MMX(mmxext, 16)
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YUV2YUVX_FUNC(sse3, 32)
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YUV2YUVX_FUNC(avx2, 64)
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#endif
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#endif /* HAVE_INLINE_ASM */
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@ -403,9 +376,14 @@ av_cold void ff_sws_init_swscale_x86(SwsContext *c)
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#if HAVE_MMXEXT_INLINE
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if (INLINE_MMXEXT(cpu_flags))
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sws_init_swscale_mmxext(c);
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if (cpu_flags & AV_CPU_FLAG_SSE3){
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if(c->use_mmx_vfilter && !(c->flags & SWS_ACCURATE_RND))
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if (cpu_flags & AV_CPU_FLAG_AVX2){
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if(c->use_mmx_vfilter && !(c->flags & SWS_ACCURATE_RND)){
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c->yuv2planeX = yuv2yuvX_avx2;
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}
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} else if (cpu_flags & AV_CPU_FLAG_SSE3){
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if(c->use_mmx_vfilter && !(c->flags & SWS_ACCURATE_RND)){
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c->yuv2planeX = yuv2yuvX_sse3;
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}
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}
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#endif
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@ -38,88 +38,6 @@
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#endif
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#define MOVNTQ(a,b) REAL_MOVNTQ(a,b)
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#if !COMPILE_TEMPLATE_MMXEXT
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static av_always_inline void
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dither_8to16(const uint8_t *srcDither, int rot)
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{
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if (rot) {
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__asm__ volatile("pxor %%mm0, %%mm0\n\t"
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"movq (%0), %%mm3\n\t"
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"movq %%mm3, %%mm4\n\t"
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"psrlq $24, %%mm3\n\t"
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"psllq $40, %%mm4\n\t"
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"por %%mm4, %%mm3\n\t"
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"movq %%mm3, %%mm4\n\t"
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"punpcklbw %%mm0, %%mm3\n\t"
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"punpckhbw %%mm0, %%mm4\n\t"
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:: "r"(srcDither)
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);
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} else {
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__asm__ volatile("pxor %%mm0, %%mm0\n\t"
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"movq (%0), %%mm3\n\t"
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"movq %%mm3, %%mm4\n\t"
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"punpcklbw %%mm0, %%mm3\n\t"
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"punpckhbw %%mm0, %%mm4\n\t"
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:: "r"(srcDither)
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);
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}
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}
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#endif
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static void RENAME(yuv2yuvX)(const int16_t *filter, int filterSize,
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const int16_t **src, uint8_t *dest, int dstW,
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const uint8_t *dither, int offset)
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{
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dither_8to16(dither, offset);
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filterSize--;
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__asm__ volatile(
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"movd %0, %%mm1\n\t"
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"punpcklwd %%mm1, %%mm1\n\t"
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"punpckldq %%mm1, %%mm1\n\t"
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"psllw $3, %%mm1\n\t"
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"paddw %%mm1, %%mm3\n\t"
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"paddw %%mm1, %%mm4\n\t"
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"psraw $4, %%mm3\n\t"
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"psraw $4, %%mm4\n\t"
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::"m"(filterSize)
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);
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__asm__ volatile(\
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"movq %%mm3, %%mm6\n\t"
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"movq %%mm4, %%mm7\n\t"
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"movl %3, %%ecx\n\t"
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"mov %0, %%"FF_REG_d" \n\t"\
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"mov (%%"FF_REG_d"), %%"FF_REG_S" \n\t"\
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".p2align 4 \n\t" /* FIXME Unroll? */\
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"1: \n\t"\
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"movq 8(%%"FF_REG_d"), %%mm0 \n\t" /* filterCoeff */\
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"movq (%%"FF_REG_S", %%"FF_REG_c", 2), %%mm2 \n\t" /* srcData */\
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"movq 8(%%"FF_REG_S", %%"FF_REG_c", 2), %%mm5 \n\t" /* srcData */\
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"add $16, %%"FF_REG_d" \n\t"\
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"mov (%%"FF_REG_d"), %%"FF_REG_S" \n\t"\
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"test %%"FF_REG_S", %%"FF_REG_S" \n\t"\
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"pmulhw %%mm0, %%mm2 \n\t"\
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"pmulhw %%mm0, %%mm5 \n\t"\
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"paddw %%mm2, %%mm3 \n\t"\
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"paddw %%mm5, %%mm4 \n\t"\
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" jnz 1b \n\t"\
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"psraw $3, %%mm3 \n\t"\
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"psraw $3, %%mm4 \n\t"\
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"packuswb %%mm4, %%mm3 \n\t"
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MOVNTQ2 " %%mm3, (%1, %%"FF_REG_c")\n\t"
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"add $8, %%"FF_REG_c" \n\t"\
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"cmp %2, %%"FF_REG_c" \n\t"\
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"movq %%mm6, %%mm3\n\t"
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"movq %%mm7, %%mm4\n\t"
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"mov %0, %%"FF_REG_d" \n\t"\
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"mov (%%"FF_REG_d"), %%"FF_REG_S" \n\t"\
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"jb 1b \n\t"\
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:: "g" (filter),
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"r" (dest-offset), "g" ((x86_reg)(dstW+offset)), "m" (offset)
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: "%"FF_REG_d, "%"FF_REG_S, "%"FF_REG_c
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);
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}
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#define YSCALEYUV2PACKEDX_UV \
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__asm__ volatile(\
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"xor %%"FF_REG_a", %%"FF_REG_a" \n\t"\
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136
libswscale/x86/yuv2yuvX.asm
Normal file
136
libswscale/x86/yuv2yuvX.asm
Normal file
@ -0,0 +1,136 @@
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;******************************************************************************
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;* x86-optimized yuv2yuvX
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;* Copyright 2020 Google LLC
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;* Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at>
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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SECTION .text
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;-----------------------------------------------------------------------------
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; yuv2yuvX
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;
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; void ff_yuv2yuvX_<opt>(const int16_t *filter, int filterSize,
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; int srcOffset, uint8_t *dest, int dstW,
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; const uint8_t *dither, int offset);
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;
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;-----------------------------------------------------------------------------
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%macro YUV2YUVX_FUNC 0
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cglobal yuv2yuvX, 7, 7, 8, filter, filterSize, src, dest, dstW, dither, offset
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%if notcpuflag(sse3)
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%define movr mova
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%else
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%define movr movdqu
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%endif
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%if ARCH_X86_64
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movsxd dstWq, dstWd
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movsxd offsetq, offsetd
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movsxd srcq, srcd
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%endif ; x86-64
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%if cpuflag(avx2)
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vpbroadcastq m3, [ditherq]
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%elif cpuflag(sse3)
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movq xmm3, [ditherq]
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%else
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mova m3, [ditherq]
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%endif ; avx2
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cmp offsetd, 0
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jz .offset
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; offset != 0 path.
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psrlq m5, m3, $18
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psllq m3, m3, $28
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por m3, m3, m5
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.offset:
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add offsetq, srcq
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%if cpuflag(avx2)
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movd xmm1, filterSized
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vpbroadcastw m1, xmm1
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%elif cpuflag(sse3)
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movd xmm1, filterSized
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pshuflw m1, m1, q0000
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punpcklqdq m1, m1
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%else
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movd m1, filterSized
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punpcklwd m1, m1
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punpckldq m1, m1
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%endif ; avx2
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pxor m0, m0, m0
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mov filterSizeq, filterq
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mov srcq, [filterSizeq]
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punpcklbw m3, m0
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psllw m1, m1, 3
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paddw m3, m3, m1
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psraw m7, m3, 4
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.outerloop:
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mova m4, m7
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mova m3, m7
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mova m6, m7
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mova m1, m7
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.loop:
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%if cpuflag(avx2)
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vpbroadcastq m0, [filterSizeq + 8]
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%elif cpuflag(sse3)
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movddup m0, [filterSizeq + 8]
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%else
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mova m0, [filterSizeq + 8]
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%endif
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pmulhw m2, m0, [srcq + offsetq * 2]
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pmulhw m5, m0, [srcq + offsetq * 2 + mmsize]
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paddw m3, m3, m2
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paddw m4, m4, m5
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pmulhw m2, m0, [srcq + offsetq * 2 + 2 * mmsize]
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pmulhw m5, m0, [srcq + offsetq * 2 + 3 * mmsize]
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paddw m6, m6, m2
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paddw m1, m1, m5
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add filterSizeq, $10
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mov srcq, [filterSizeq]
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test srcq, srcq
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jnz .loop
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psraw m3, m3, 3
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psraw m4, m4, 3
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psraw m6, m6, 3
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psraw m1, m1, 3
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packuswb m3, m3, m4
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packuswb m6, m6, m1
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mov srcq, [filterq]
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%if cpuflag(avx2)
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vpermq m3, m3, 216
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vpermq m6, m6, 216
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%endif
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movr [destq + offsetq], m3
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movr [destq + offsetq + mmsize], m6
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add offsetq, mmsize * 2
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mov filterSizeq, filterq
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cmp offsetq, dstWq
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jb .outerloop
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REP_RET
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%endmacro
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INIT_MMX mmx
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YUV2YUVX_FUNC
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INIT_MMX mmxext
|
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YUV2YUVX_FUNC
|
||||
INIT_XMM sse3
|
||||
YUV2YUVX_FUNC
|
||||
INIT_YMM avx2
|
||||
YUV2YUVX_FUNC
|
||||
@ -36,6 +36,107 @@
|
||||
AV_WN32(buf + j, rnd()); \
|
||||
} while (0)
|
||||
|
||||
// This reference function is the same approximate algorithm employed by the
|
||||
// SIMD functions
|
||||
static void ref_function(const int16_t *filter, int filterSize,
|
||||
const int16_t **src, uint8_t *dest, int dstW,
|
||||
const uint8_t *dither, int offset)
|
||||
{
|
||||
int i, d;
|
||||
d = ((filterSize - 1) * 8 + dither[0]) >> 4;
|
||||
for ( i = 0; i < dstW; i++) {
|
||||
int16_t val = d;
|
||||
int j;
|
||||
union {
|
||||
int val;
|
||||
int16_t v[2];
|
||||
} t;
|
||||
for (j = 0; j < filterSize; j++){
|
||||
t.val = (int)src[j][i + offset] * (int)filter[j];
|
||||
val += t.v[1];
|
||||
}
|
||||
dest[i]= av_clip_uint8(val>>3);
|
||||
}
|
||||
}
|
||||
|
||||
static void check_yuv2yuvX(void)
|
||||
{
|
||||
struct SwsContext *ctx;
|
||||
int fsi, osi, isi, i, j;
|
||||
int dstW;
|
||||
#define LARGEST_FILTER 16
|
||||
#define FILTER_SIZES 4
|
||||
static const int filter_sizes[FILTER_SIZES] = {1, 4, 8, 16};
|
||||
#define LARGEST_INPUT_SIZE 512
|
||||
#define INPUT_SIZES 4
|
||||
static const int input_sizes[INPUT_SIZES] = {128, 144, 256, 512};
|
||||
|
||||
declare_func_emms(AV_CPU_FLAG_MMX, void, const int16_t *filter,
|
||||
int filterSize, const int16_t **src, uint8_t *dest,
|
||||
int dstW, const uint8_t *dither, int offset);
|
||||
|
||||
const int16_t **src;
|
||||
LOCAL_ALIGNED_8(int16_t, src_pixels, [LARGEST_FILTER * LARGEST_INPUT_SIZE]);
|
||||
LOCAL_ALIGNED_8(int16_t, filter_coeff, [LARGEST_FILTER]);
|
||||
LOCAL_ALIGNED_8(uint8_t, dst0, [LARGEST_INPUT_SIZE]);
|
||||
LOCAL_ALIGNED_8(uint8_t, dst1, [LARGEST_INPUT_SIZE]);
|
||||
LOCAL_ALIGNED_8(uint8_t, dither, [LARGEST_INPUT_SIZE]);
|
||||
union VFilterData{
|
||||
const int16_t *src;
|
||||
uint16_t coeff[8];
|
||||
} *vFilterData;
|
||||
uint8_t d_val = rnd();
|
||||
randomize_buffers(filter_coeff, LARGEST_FILTER);
|
||||
randomize_buffers(src_pixels, LARGEST_FILTER * LARGEST_INPUT_SIZE);
|
||||
ctx = sws_alloc_context();
|
||||
if (sws_init_context(ctx, NULL, NULL) < 0)
|
||||
fail();
|
||||
|
||||
ff_getSwsFunc(ctx);
|
||||
for(i = 0; i < LARGEST_INPUT_SIZE; ++i){
|
||||
dither[i] = d_val;
|
||||
}
|
||||
for(isi = 0; isi < INPUT_SIZES; ++isi){
|
||||
dstW = input_sizes[isi];
|
||||
for(osi = 0; osi < 64; osi += 16){
|
||||
for(fsi = 0; fsi < FILTER_SIZES; ++fsi){
|
||||
src = av_malloc(sizeof(int16_t*) * filter_sizes[fsi]);
|
||||
vFilterData = av_malloc((filter_sizes[fsi] + 2) * sizeof(union VFilterData));
|
||||
memset(vFilterData, 0, (filter_sizes[fsi] + 2) * sizeof(union VFilterData));
|
||||
for(i = 0; i < filter_sizes[fsi]; ++i){
|
||||
src[i] = &src_pixels[i * LARGEST_INPUT_SIZE];
|
||||
vFilterData[i].src = src[i];
|
||||
for(j = 0; j < 4; ++j)
|
||||
vFilterData[i].coeff[j + 4] = filter_coeff[i];
|
||||
}
|
||||
if (check_func(ctx->yuv2planeX, "yuv2yuvX_%d_%d", filter_sizes[fsi], osi)){
|
||||
memset(dst0, 0, LARGEST_INPUT_SIZE * sizeof(dst0[0]));
|
||||
memset(dst1, 0, LARGEST_INPUT_SIZE * sizeof(dst1[0]));
|
||||
|
||||
// The reference function is not the scalar function selected when mmx
|
||||
// is deactivated as the SIMD functions do not give the same result as
|
||||
// the scalar ones due to rounding. The SIMD functions are activated by
|
||||
// the flag SWS_ACCURATE_RND
|
||||
ref_function(&filter_coeff[0], filter_sizes[fsi], src, dst0, dstW - osi, dither, osi);
|
||||
// There's no point in calling new for the reference function
|
||||
if(ctx->use_mmx_vfilter){
|
||||
call_new((const int16_t*)vFilterData, filter_sizes[fsi], src, dst1, dstW - osi, dither, osi);
|
||||
if (memcmp(dst0, dst1, LARGEST_INPUT_SIZE * sizeof(dst0[0])))
|
||||
fail();
|
||||
if(dstW == LARGEST_INPUT_SIZE)
|
||||
bench_new((const int16_t*)vFilterData, filter_sizes[fsi], src, dst1, dstW - osi, dither, osi);
|
||||
}
|
||||
}
|
||||
free(src);
|
||||
free(vFilterData);
|
||||
}
|
||||
}
|
||||
}
|
||||
sws_freeContext(ctx);
|
||||
#undef FILTER_SIZES
|
||||
}
|
||||
|
||||
#undef SRC_PIXELS
|
||||
#define SRC_PIXELS 128
|
||||
|
||||
static void check_hscale(void)
|
||||
@ -132,4 +233,6 @@ void checkasm_check_sw_scale(void)
|
||||
{
|
||||
check_hscale();
|
||||
report("hscale");
|
||||
check_yuv2yuvX();
|
||||
report("yuv2yuvX");
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user