mirror of
https://github.com/FFmpeg/FFmpeg.git
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Minor speedup of rgb32to24. (performance is not successful)
Originally committed as revision 2747 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Nick Kurshev
parent
9e7f791dcb
commit
2b3eef22d0
@ -16,6 +16,9 @@
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static const uint64_t mask32 __attribute__((aligned(8))) = 0x00FFFFFF00FFFFFFULL;
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static const uint64_t mask24l __attribute__((aligned(8))) = 0x0000000000FFFFFFULL;
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static const uint64_t mask24h __attribute__((aligned(8))) = 0x0000FFFFFF000000ULL;
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static const uint64_t mask24hh __attribute__((aligned(8))) = 0xffff000000000000ULL;
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static const uint64_t mask24hhh __attribute__((aligned(8))) = 0xffffffff00000000ULL;
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static const uint64_t mask24hhhh __attribute__((aligned(8))) = 0xffffffffffff0000ULL;
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static const uint64_t mask15b __attribute__((aligned(8))) = 0x001F001F001F001FULL; /* 00000000 00011111 xxB */
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static const uint64_t mask15rg __attribute__((aligned(8))) = 0x7FE07FE07FE07FE0ULL; /* 01111111 11100000 RGx */
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static const uint64_t mask15s __attribute__((aligned(8))) = 0xFFE0FFE0FFE0FFE0ULL;
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@ -90,34 +93,59 @@ void rgb32to24(const uint8_t *src,uint8_t *dst,unsigned src_size)
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end = s + src_size;
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#ifdef HAVE_MMX
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__asm __volatile(PREFETCH" %0"::"m"(*s):"memory");
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mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2));
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__asm __volatile(
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"movq %0, %%mm7\n\t"
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"movq %1, %%mm6"
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::"m"(mask24l),"m"(mask24h):"memory");
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mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*4))*(MMREG_SIZE*4));
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while(s < mm_end)
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{
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__asm __volatile(
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PREFETCH" 32%1\n\t"
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"movq %1, %%mm0\n\t"
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"movq 8%1, %%mm1\n\t"
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"movq 16%1, %%mm4\n\t"
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"movq 24%1, %%mm5\n\t"
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"movq %%mm0, %%mm2\n\t"
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"movq %%mm1, %%mm3\n\t"
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"movq %%mm4, %%mm6\n\t"
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"movq %%mm5, %%mm7\n\t"
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"psrlq $8, %%mm2\n\t"
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"psrlq $8, %%mm3\n\t"
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"pand %%mm7, %%mm0\n\t"
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"pand %%mm7, %%mm1\n\t"
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"pand %%mm6, %%mm2\n\t"
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"pand %%mm6, %%mm3\n\t"
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"psrlq $8, %%mm6\n\t"
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"psrlq $8, %%mm7\n\t"
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"pand %2, %%mm0\n\t"
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"pand %2, %%mm1\n\t"
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"pand %2, %%mm4\n\t"
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"pand %2, %%mm5\n\t"
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"pand %3, %%mm2\n\t"
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"pand %3, %%mm3\n\t"
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"pand %3, %%mm6\n\t"
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"pand %3, %%mm7\n\t"
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"por %%mm2, %%mm0\n\t"
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"por %%mm3, %%mm1\n\t"
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"por %%mm6, %%mm4\n\t"
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"por %%mm7, %%mm5\n\t"
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"movq %%mm1, %%mm2\n\t"
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"movq %%mm4, %%mm3\n\t"
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"psllq $48, %%mm2\n\t"
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"psllq $32, %%mm3\n\t"
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"pand %4, %%mm2\n\t"
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"pand %5, %%mm3\n\t"
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"por %%mm2, %%mm0\n\t"
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"psrlq $16, %%mm1\n\t"
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"psrlq $32, %%mm4\n\t"
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"psllq $16, %%mm5\n\t"
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"por %%mm3, %%mm1\n\t"
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"pand %6, %%mm5\n\t"
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"por %%mm5, %%mm4\n\t"
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MOVNTQ" %%mm0, %0\n\t"
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MOVNTQ" %%mm1, 6%0"
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MOVNTQ" %%mm1, 8%0\n\t"
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MOVNTQ" %%mm4, 16%0"
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:"=m"(*dest)
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:"m"(*s)
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:"m"(*s),"m"(mask24l),
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"m"(mask24h),"m"(mask24hh),"m"(mask24hhh),"m"(mask24hhhh)
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:"memory");
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dest += 12;
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s += 16;
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dest += 24;
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s += 32;
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}
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__asm __volatile(SFENCE:::"memory");
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__asm __volatile(EMMS:::"memory");
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@ -16,6 +16,9 @@
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static const uint64_t mask32 __attribute__((aligned(8))) = 0x00FFFFFF00FFFFFFULL;
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static const uint64_t mask24l __attribute__((aligned(8))) = 0x0000000000FFFFFFULL;
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static const uint64_t mask24h __attribute__((aligned(8))) = 0x0000FFFFFF000000ULL;
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static const uint64_t mask24hh __attribute__((aligned(8))) = 0xffff000000000000ULL;
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static const uint64_t mask24hhh __attribute__((aligned(8))) = 0xffffffff00000000ULL;
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static const uint64_t mask24hhhh __attribute__((aligned(8))) = 0xffffffffffff0000ULL;
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static const uint64_t mask15b __attribute__((aligned(8))) = 0x001F001F001F001FULL; /* 00000000 00011111 xxB */
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static const uint64_t mask15rg __attribute__((aligned(8))) = 0x7FE07FE07FE07FE0ULL; /* 01111111 11100000 RGx */
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static const uint64_t mask15s __attribute__((aligned(8))) = 0xFFE0FFE0FFE0FFE0ULL;
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@ -90,34 +93,59 @@ void rgb32to24(const uint8_t *src,uint8_t *dst,unsigned src_size)
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end = s + src_size;
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#ifdef HAVE_MMX
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__asm __volatile(PREFETCH" %0"::"m"(*s):"memory");
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mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2));
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__asm __volatile(
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"movq %0, %%mm7\n\t"
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"movq %1, %%mm6"
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::"m"(mask24l),"m"(mask24h):"memory");
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mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*4))*(MMREG_SIZE*4));
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while(s < mm_end)
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{
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__asm __volatile(
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PREFETCH" 32%1\n\t"
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"movq %1, %%mm0\n\t"
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"movq 8%1, %%mm1\n\t"
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"movq 16%1, %%mm4\n\t"
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"movq 24%1, %%mm5\n\t"
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"movq %%mm0, %%mm2\n\t"
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"movq %%mm1, %%mm3\n\t"
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"movq %%mm4, %%mm6\n\t"
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"movq %%mm5, %%mm7\n\t"
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"psrlq $8, %%mm2\n\t"
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"psrlq $8, %%mm3\n\t"
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"pand %%mm7, %%mm0\n\t"
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"pand %%mm7, %%mm1\n\t"
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"pand %%mm6, %%mm2\n\t"
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"pand %%mm6, %%mm3\n\t"
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"psrlq $8, %%mm6\n\t"
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"psrlq $8, %%mm7\n\t"
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"pand %2, %%mm0\n\t"
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"pand %2, %%mm1\n\t"
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"pand %2, %%mm4\n\t"
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"pand %2, %%mm5\n\t"
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"pand %3, %%mm2\n\t"
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"pand %3, %%mm3\n\t"
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"pand %3, %%mm6\n\t"
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"pand %3, %%mm7\n\t"
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"por %%mm2, %%mm0\n\t"
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"por %%mm3, %%mm1\n\t"
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"por %%mm6, %%mm4\n\t"
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"por %%mm7, %%mm5\n\t"
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"movq %%mm1, %%mm2\n\t"
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"movq %%mm4, %%mm3\n\t"
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"psllq $48, %%mm2\n\t"
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"psllq $32, %%mm3\n\t"
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"pand %4, %%mm2\n\t"
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"pand %5, %%mm3\n\t"
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"por %%mm2, %%mm0\n\t"
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"psrlq $16, %%mm1\n\t"
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"psrlq $32, %%mm4\n\t"
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"psllq $16, %%mm5\n\t"
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"por %%mm3, %%mm1\n\t"
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"pand %6, %%mm5\n\t"
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"por %%mm5, %%mm4\n\t"
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MOVNTQ" %%mm0, %0\n\t"
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MOVNTQ" %%mm1, 6%0"
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MOVNTQ" %%mm1, 8%0\n\t"
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MOVNTQ" %%mm4, 16%0"
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:"=m"(*dest)
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:"m"(*s)
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:"m"(*s),"m"(mask24l),
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"m"(mask24h),"m"(mask24hh),"m"(mask24hhh),"m"(mask24hhhh)
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:"memory");
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dest += 12;
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s += 16;
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dest += 24;
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s += 32;
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}
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__asm __volatile(SFENCE:::"memory");
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__asm __volatile(EMMS:::"memory");
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