mirror of https://github.com/mpv-player/mpv
faster 15to16 bit rgb (the mmx routine is limited by memory speed so there is no difference ): but the c routine is faster
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@2699 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael
parent
57bfcdc19d
commit
867f14b6b3
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@ -14,6 +14,7 @@ static const uint64_t mask24l __attribute__((aligned(8))) = 0x0000000000FFFFFFU
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static const uint64_t mask24h __attribute__((aligned(8))) = 0x0000FFFFFF000000ULL;
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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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#endif
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void rgb24to32(const uint8_t *src,uint8_t *dst,uint32_t src_size)
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@ -119,6 +120,7 @@ void rgb32to24(const uint8_t *src,uint8_t *dst,uint32_t src_size)
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Original by Strepto/Astral
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ported to gcc & bugfixed : A'rpi
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MMX2, 3DNOW optimization by Nick Kurshev
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32bit c version, and and&add trick by Michael Niedermayer
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*/
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void rgb15to16(const uint8_t *src,uint8_t *dst,uint32_t src_size)
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{
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@ -126,11 +128,10 @@ void rgb15to16(const uint8_t *src,uint8_t *dst,uint32_t src_size)
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register const char* s=src+src_size;
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register char* d=dst+src_size;
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register int offs=-src_size;
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__asm __volatile(PREFETCH" %0"::"m"(*(s+offs)):"memory");
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__asm __volatile(PREFETCH" %0"::"m"(*(s+offs)));
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__asm __volatile(
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"movq %0, %%mm4\n\t"
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"movq %1, %%mm5"
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::"m"(mask15b), "m"(mask15rg):"memory");
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::"m"(mask15s));
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while(offs<0)
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{
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__asm __volatile(
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@ -140,23 +141,20 @@ void rgb15to16(const uint8_t *src,uint8_t *dst,uint32_t src_size)
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"movq %%mm0, %%mm1\n\t"
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"movq %%mm2, %%mm3\n\t"
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"pand %%mm4, %%mm0\n\t"
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"pand %%mm5, %%mm1\n\t"
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"pand %%mm4, %%mm2\n\t"
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"pand %%mm5, %%mm3\n\t"
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"psllq $1, %%mm1\n\t"
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"psllq $1, %%mm3\n\t"
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"por %%mm1, %%mm0\n\t"
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"por %%mm3, %%mm2\n\t"
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"paddw %%mm1, %%mm0\n\t"
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"paddw %%mm3, %%mm2\n\t"
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MOVNTQ" %%mm0, %0\n\t"
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MOVNTQ" %%mm2, 8%0"
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:"=m"(*(d+offs))
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:"m"(*(s+offs))
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:"memory");
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);
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offs+=16;
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}
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__asm __volatile(SFENCE:::"memory");
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__asm __volatile(EMMS:::"memory");
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#else
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#if 0
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const uint16_t *s1=( uint16_t * )src;
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uint16_t *d1=( uint16_t * )dst;
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uint16_t *e=((uint8_t *)s1)+src_size;
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@ -168,6 +166,19 @@ void rgb15to16(const uint8_t *src,uint8_t *dst,uint32_t src_size)
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00000000000001 1111=0x001F */
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*( d1++ )=( x&0x001F )|( ( x&0x7FE0 )<<1 );
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}
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#else
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const uint32_t *s1=( uint32_t * )src;
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uint32_t *d1=( uint32_t * )dst;
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int i;
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int size= src_size>>2;
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for(i=0; i<size; i++)
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{
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register int x= s1[i];
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// d1[i] = x + (x&0x7FE07FE0); //faster but need msbit =0 which might not allways be true
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d1[i] = (x&0x7FFF7FFF) + (x&0x7FE07FE0);
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}
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#endif
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#endif
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}
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@ -14,6 +14,7 @@ static const uint64_t mask24l __attribute__((aligned(8))) = 0x0000000000FFFFFFU
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static const uint64_t mask24h __attribute__((aligned(8))) = 0x0000FFFFFF000000ULL;
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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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#endif
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void rgb24to32(const uint8_t *src,uint8_t *dst,uint32_t src_size)
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@ -119,6 +120,7 @@ void rgb32to24(const uint8_t *src,uint8_t *dst,uint32_t src_size)
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Original by Strepto/Astral
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ported to gcc & bugfixed : A'rpi
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MMX2, 3DNOW optimization by Nick Kurshev
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32bit c version, and and&add trick by Michael Niedermayer
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*/
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void rgb15to16(const uint8_t *src,uint8_t *dst,uint32_t src_size)
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{
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@ -126,11 +128,10 @@ void rgb15to16(const uint8_t *src,uint8_t *dst,uint32_t src_size)
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register const char* s=src+src_size;
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register char* d=dst+src_size;
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register int offs=-src_size;
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__asm __volatile(PREFETCH" %0"::"m"(*(s+offs)):"memory");
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__asm __volatile(PREFETCH" %0"::"m"(*(s+offs)));
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__asm __volatile(
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"movq %0, %%mm4\n\t"
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"movq %1, %%mm5"
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::"m"(mask15b), "m"(mask15rg):"memory");
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::"m"(mask15s));
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while(offs<0)
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{
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__asm __volatile(
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@ -140,23 +141,20 @@ void rgb15to16(const uint8_t *src,uint8_t *dst,uint32_t src_size)
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"movq %%mm0, %%mm1\n\t"
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"movq %%mm2, %%mm3\n\t"
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"pand %%mm4, %%mm0\n\t"
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"pand %%mm5, %%mm1\n\t"
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"pand %%mm4, %%mm2\n\t"
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"pand %%mm5, %%mm3\n\t"
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"psllq $1, %%mm1\n\t"
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"psllq $1, %%mm3\n\t"
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"por %%mm1, %%mm0\n\t"
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"por %%mm3, %%mm2\n\t"
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"paddw %%mm1, %%mm0\n\t"
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"paddw %%mm3, %%mm2\n\t"
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MOVNTQ" %%mm0, %0\n\t"
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MOVNTQ" %%mm2, 8%0"
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:"=m"(*(d+offs))
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:"m"(*(s+offs))
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:"memory");
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);
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offs+=16;
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}
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__asm __volatile(SFENCE:::"memory");
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__asm __volatile(EMMS:::"memory");
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#else
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#if 0
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const uint16_t *s1=( uint16_t * )src;
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uint16_t *d1=( uint16_t * )dst;
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uint16_t *e=((uint8_t *)s1)+src_size;
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@ -168,6 +166,19 @@ void rgb15to16(const uint8_t *src,uint8_t *dst,uint32_t src_size)
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00000000000001 1111=0x001F */
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*( d1++ )=( x&0x001F )|( ( x&0x7FE0 )<<1 );
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}
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#else
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const uint32_t *s1=( uint32_t * )src;
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uint32_t *d1=( uint32_t * )dst;
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int i;
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int size= src_size>>2;
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for(i=0; i<size; i++)
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{
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register int x= s1[i];
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// d1[i] = x + (x&0x7FE07FE0); //faster but need msbit =0 which might not allways be true
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d1[i] = (x&0x7FFF7FFF) + (x&0x7FE07FE0);
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}
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#endif
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#endif
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}
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