901 lines
32 KiB
C
901 lines
32 KiB
C
/********************************************************************
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* *
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* THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* *
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* THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 *
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* by the Xiph.Org Foundation http://www.xiph.org/ *
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* *
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********************************************************************
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function:
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last mod: $Id: dsp_mmx.c 14579 2008-03-12 06:42:40Z xiphmont $
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********************************************************************/
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#include <stddef.h>
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#include "x86enc.h"
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#if defined(OC_X86_ASM)
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unsigned oc_enc_frag_sad_mmxext(const unsigned char *_src,
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const unsigned char *_ref,int _ystride){
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ptrdiff_t ystride3;
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ptrdiff_t ret;
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__asm__ __volatile__(
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/*Load the first 4 rows of each block.*/
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"movq (%[src]),%%mm0\n\t"
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"movq (%[ref]),%%mm1\n\t"
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"movq (%[src],%[ystride]),%%mm2\n\t"
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"movq (%[ref],%[ystride]),%%mm3\n\t"
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"lea (%[ystride],%[ystride],2),%[ystride3]\n\t"
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"movq (%[src],%[ystride],2),%%mm4\n\t"
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"movq (%[ref],%[ystride],2),%%mm5\n\t"
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"movq (%[src],%[ystride3]),%%mm6\n\t"
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"movq (%[ref],%[ystride3]),%%mm7\n\t"
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/*Compute their SADs and add them in %%mm0*/
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"psadbw %%mm1,%%mm0\n\t"
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"psadbw %%mm3,%%mm2\n\t"
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"lea (%[src],%[ystride],4),%[src]\n\t"
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"paddw %%mm2,%%mm0\n\t"
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"lea (%[ref],%[ystride],4),%[ref]\n\t"
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/*Load the next 3 rows as registers become available.*/
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"movq (%[src]),%%mm2\n\t"
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"movq (%[ref]),%%mm3\n\t"
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"psadbw %%mm5,%%mm4\n\t"
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"psadbw %%mm7,%%mm6\n\t"
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"paddw %%mm4,%%mm0\n\t"
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"movq (%[ref],%[ystride]),%%mm5\n\t"
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"movq (%[src],%[ystride]),%%mm4\n\t"
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"paddw %%mm6,%%mm0\n\t"
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"movq (%[ref],%[ystride],2),%%mm7\n\t"
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"movq (%[src],%[ystride],2),%%mm6\n\t"
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/*Start adding their SADs to %%mm0*/
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"psadbw %%mm3,%%mm2\n\t"
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"psadbw %%mm5,%%mm4\n\t"
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"paddw %%mm2,%%mm0\n\t"
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"psadbw %%mm7,%%mm6\n\t"
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/*Load last row as registers become available.*/
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"movq (%[src],%[ystride3]),%%mm2\n\t"
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"movq (%[ref],%[ystride3]),%%mm3\n\t"
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/*And finish adding up their SADs.*/
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"paddw %%mm4,%%mm0\n\t"
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"psadbw %%mm3,%%mm2\n\t"
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"paddw %%mm6,%%mm0\n\t"
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"paddw %%mm2,%%mm0\n\t"
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"movd %%mm0,%[ret]\n\t"
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:[ret]"=a"(ret),[src]"+%r"(_src),[ref]"+r"(_ref),[ystride3]"=&r"(ystride3)
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:[ystride]"r"((ptrdiff_t)_ystride)
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);
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return (unsigned)ret;
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}
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unsigned oc_enc_frag_sad_thresh_mmxext(const unsigned char *_src,
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const unsigned char *_ref,int _ystride,unsigned _thresh){
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/*Early termination is for suckers.*/
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return oc_enc_frag_sad_mmxext(_src,_ref,_ystride);
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}
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/*Assumes the first two rows of %[ref1] and %[ref2] are in %%mm0...%%mm3, the
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first two rows of %[src] are in %%mm4,%%mm5, and {1}x8 is in %%mm7.
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We pre-load the next two rows of data as registers become available.*/
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#define OC_SAD2_LOOP \
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"#OC_SAD2_LOOP\n\t" \
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/*We want to compute (%%mm0+%%mm1>>1) on unsigned bytes without overflow, but \
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pavgb computes (%%mm0+%%mm1+1>>1). \
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The latter is exactly 1 too large when the low bit of two corresponding \
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bytes is only set in one of them. \
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Therefore we pxor the operands, pand to mask out the low bits, and psubb to \
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correct the output of pavgb.*/ \
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"movq %%mm0,%%mm6\n\t" \
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"lea (%[ref1],%[ystride],2),%[ref1]\n\t" \
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"pxor %%mm1,%%mm0\n\t" \
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"pavgb %%mm1,%%mm6\n\t" \
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"lea (%[ref2],%[ystride],2),%[ref2]\n\t" \
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"movq %%mm2,%%mm1\n\t" \
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"pand %%mm7,%%mm0\n\t" \
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"pavgb %%mm3,%%mm2\n\t" \
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"pxor %%mm3,%%mm1\n\t" \
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"movq (%[ref2],%[ystride]),%%mm3\n\t" \
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"psubb %%mm0,%%mm6\n\t" \
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"movq (%[ref1]),%%mm0\n\t" \
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"pand %%mm7,%%mm1\n\t" \
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"psadbw %%mm6,%%mm4\n\t" \
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"movd %[ret],%%mm6\n\t" \
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"psubb %%mm1,%%mm2\n\t" \
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"movq (%[ref2]),%%mm1\n\t" \
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"lea (%[src],%[ystride],2),%[src]\n\t" \
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"psadbw %%mm2,%%mm5\n\t" \
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"movq (%[ref1],%[ystride]),%%mm2\n\t" \
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"paddw %%mm4,%%mm5\n\t" \
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"movq (%[src]),%%mm4\n\t" \
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"paddw %%mm5,%%mm6\n\t" \
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"movq (%[src],%[ystride]),%%mm5\n\t" \
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"movd %%mm6,%[ret]\n\t" \
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/*Same as above, but does not pre-load the next two rows.*/
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#define OC_SAD2_TAIL \
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"#OC_SAD2_TAIL\n\t" \
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"movq %%mm0,%%mm6\n\t" \
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"pavgb %%mm1,%%mm0\n\t" \
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"pxor %%mm1,%%mm6\n\t" \
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"movq %%mm2,%%mm1\n\t" \
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"pand %%mm7,%%mm6\n\t" \
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"pavgb %%mm3,%%mm2\n\t" \
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"pxor %%mm3,%%mm1\n\t" \
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"psubb %%mm6,%%mm0\n\t" \
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"pand %%mm7,%%mm1\n\t" \
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"psadbw %%mm0,%%mm4\n\t" \
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"psubb %%mm1,%%mm2\n\t" \
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"movd %[ret],%%mm6\n\t" \
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"psadbw %%mm2,%%mm5\n\t" \
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"paddw %%mm4,%%mm5\n\t" \
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"paddw %%mm5,%%mm6\n\t" \
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"movd %%mm6,%[ret]\n\t" \
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unsigned oc_enc_frag_sad2_thresh_mmxext(const unsigned char *_src,
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const unsigned char *_ref1,const unsigned char *_ref2,int _ystride,
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unsigned _thresh){
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ptrdiff_t ret;
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__asm__ __volatile__(
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"movq (%[ref1]),%%mm0\n\t"
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"movq (%[ref2]),%%mm1\n\t"
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"movq (%[ref1],%[ystride]),%%mm2\n\t"
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"movq (%[ref2],%[ystride]),%%mm3\n\t"
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"xor %[ret],%[ret]\n\t"
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"movq (%[src]),%%mm4\n\t"
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"pxor %%mm7,%%mm7\n\t"
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"pcmpeqb %%mm6,%%mm6\n\t"
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"movq (%[src],%[ystride]),%%mm5\n\t"
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"psubb %%mm6,%%mm7\n\t"
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OC_SAD2_LOOP
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OC_SAD2_LOOP
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OC_SAD2_LOOP
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OC_SAD2_TAIL
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:[ret]"=&a"(ret),[src]"+r"(_src),[ref1]"+%r"(_ref1),[ref2]"+r"(_ref2)
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:[ystride]"r"((ptrdiff_t)_ystride)
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);
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return (unsigned)ret;
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}
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/*Load an 8x4 array of pixel values from %[src] and %[ref] and compute their
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16-bit difference in %%mm0...%%mm7.*/
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#define OC_LOAD_SUB_8x4(_off) \
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"#OC_LOAD_SUB_8x4\n\t" \
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"movd "_off"(%[src]),%%mm0\n\t" \
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"movd "_off"(%[ref]),%%mm4\n\t" \
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"movd "_off"(%[src],%[src_ystride]),%%mm1\n\t" \
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"lea (%[src],%[src_ystride],2),%[src]\n\t" \
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"movd "_off"(%[ref],%[ref_ystride]),%%mm5\n\t" \
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"lea (%[ref],%[ref_ystride],2),%[ref]\n\t" \
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"movd "_off"(%[src]),%%mm2\n\t" \
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"movd "_off"(%[ref]),%%mm7\n\t" \
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"movd "_off"(%[src],%[src_ystride]),%%mm3\n\t" \
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"movd "_off"(%[ref],%[ref_ystride]),%%mm6\n\t" \
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"punpcklbw %%mm4,%%mm0\n\t" \
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"lea (%[src],%[src_ystride],2),%[src]\n\t" \
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"punpcklbw %%mm4,%%mm4\n\t" \
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"lea (%[ref],%[ref_ystride],2),%[ref]\n\t" \
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"psubw %%mm4,%%mm0\n\t" \
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"movd "_off"(%[src]),%%mm4\n\t" \
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"movq %%mm0,"_off"*2(%[buf])\n\t" \
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"movd "_off"(%[ref]),%%mm0\n\t" \
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"punpcklbw %%mm5,%%mm1\n\t" \
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"punpcklbw %%mm5,%%mm5\n\t" \
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"psubw %%mm5,%%mm1\n\t" \
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"movd "_off"(%[src],%[src_ystride]),%%mm5\n\t" \
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"punpcklbw %%mm7,%%mm2\n\t" \
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"punpcklbw %%mm7,%%mm7\n\t" \
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"psubw %%mm7,%%mm2\n\t" \
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"movd "_off"(%[ref],%[ref_ystride]),%%mm7\n\t" \
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"punpcklbw %%mm6,%%mm3\n\t" \
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"lea (%[src],%[src_ystride],2),%[src]\n\t" \
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"punpcklbw %%mm6,%%mm6\n\t" \
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"psubw %%mm6,%%mm3\n\t" \
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"movd "_off"(%[src]),%%mm6\n\t" \
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"punpcklbw %%mm0,%%mm4\n\t" \
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"lea (%[ref],%[ref_ystride],2),%[ref]\n\t" \
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"punpcklbw %%mm0,%%mm0\n\t" \
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"lea (%[src],%[src_ystride],2),%[src]\n\t" \
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"psubw %%mm0,%%mm4\n\t" \
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"movd "_off"(%[ref]),%%mm0\n\t" \
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"punpcklbw %%mm7,%%mm5\n\t" \
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"neg %[src_ystride]\n\t" \
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"punpcklbw %%mm7,%%mm7\n\t" \
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"psubw %%mm7,%%mm5\n\t" \
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"movd "_off"(%[src],%[src_ystride]),%%mm7\n\t" \
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"punpcklbw %%mm0,%%mm6\n\t" \
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"lea (%[ref],%[ref_ystride],2),%[ref]\n\t" \
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"punpcklbw %%mm0,%%mm0\n\t" \
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"neg %[ref_ystride]\n\t" \
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"psubw %%mm0,%%mm6\n\t" \
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"movd "_off"(%[ref],%[ref_ystride]),%%mm0\n\t" \
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"lea (%[src],%[src_ystride],8),%[src]\n\t" \
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"punpcklbw %%mm0,%%mm7\n\t" \
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"neg %[src_ystride]\n\t" \
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"punpcklbw %%mm0,%%mm0\n\t" \
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"lea (%[ref],%[ref_ystride],8),%[ref]\n\t" \
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"psubw %%mm0,%%mm7\n\t" \
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"neg %[ref_ystride]\n\t" \
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"movq "_off"*2(%[buf]),%%mm0\n\t" \
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/*Load an 8x4 array of pixel values from %[src] into %%mm0...%%mm7.*/
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#define OC_LOAD_8x4(_off) \
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"#OC_LOAD_8x4\n\t" \
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"movd "_off"(%[src]),%%mm0\n\t" \
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"movd "_off"(%[src],%[ystride]),%%mm1\n\t" \
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"movd "_off"(%[src],%[ystride],2),%%mm2\n\t" \
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"pxor %%mm7,%%mm7\n\t" \
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"movd "_off"(%[src],%[ystride3]),%%mm3\n\t" \
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"punpcklbw %%mm7,%%mm0\n\t" \
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"movd "_off"(%[src4]),%%mm4\n\t" \
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"punpcklbw %%mm7,%%mm1\n\t" \
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"movd "_off"(%[src4],%[ystride]),%%mm5\n\t" \
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"punpcklbw %%mm7,%%mm2\n\t" \
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"movd "_off"(%[src4],%[ystride],2),%%mm6\n\t" \
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"punpcklbw %%mm7,%%mm3\n\t" \
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"movd "_off"(%[src4],%[ystride3]),%%mm7\n\t" \
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"punpcklbw %%mm4,%%mm4\n\t" \
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"punpcklbw %%mm5,%%mm5\n\t" \
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"psrlw $8,%%mm4\n\t" \
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"psrlw $8,%%mm5\n\t" \
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"punpcklbw %%mm6,%%mm6\n\t" \
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"punpcklbw %%mm7,%%mm7\n\t" \
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"psrlw $8,%%mm6\n\t" \
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"psrlw $8,%%mm7\n\t" \
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/*Performs the first two stages of an 8-point 1-D Hadamard transform.
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The transform is performed in place, except that outputs 0-3 are swapped with
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outputs 4-7.
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Outputs 2, 3, 6 and 7 from the second stage are negated (which allows us to
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perform this stage in place with no temporary registers).*/
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#define OC_HADAMARD_AB_8x4 \
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"#OC_HADAMARD_AB_8x4\n\t" \
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/*Stage A: \
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Outputs 0-3 are swapped with 4-7 here.*/ \
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"paddw %%mm1,%%mm5\n\t" \
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"paddw %%mm2,%%mm6\n\t" \
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"paddw %%mm1,%%mm1\n\t" \
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"paddw %%mm2,%%mm2\n\t" \
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"psubw %%mm5,%%mm1\n\t" \
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"psubw %%mm6,%%mm2\n\t" \
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"paddw %%mm3,%%mm7\n\t" \
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"paddw %%mm0,%%mm4\n\t" \
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"paddw %%mm3,%%mm3\n\t" \
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"paddw %%mm0,%%mm0\n\t" \
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"psubw %%mm7,%%mm3\n\t" \
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"psubw %%mm4,%%mm0\n\t" \
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/*Stage B:*/ \
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"paddw %%mm2,%%mm0\n\t" \
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"paddw %%mm3,%%mm1\n\t" \
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"paddw %%mm6,%%mm4\n\t" \
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"paddw %%mm7,%%mm5\n\t" \
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"paddw %%mm2,%%mm2\n\t" \
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"paddw %%mm3,%%mm3\n\t" \
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"paddw %%mm6,%%mm6\n\t" \
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"paddw %%mm7,%%mm7\n\t" \
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"psubw %%mm0,%%mm2\n\t" \
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"psubw %%mm1,%%mm3\n\t" \
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"psubw %%mm4,%%mm6\n\t" \
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"psubw %%mm5,%%mm7\n\t" \
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/*Performs the last stage of an 8-point 1-D Hadamard transform in place.
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Ouputs 1, 3, 5, and 7 are negated (which allows us to perform this stage in
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place with no temporary registers).*/
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#define OC_HADAMARD_C_8x4 \
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"#OC_HADAMARD_C_8x4\n\t" \
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/*Stage C:*/ \
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"paddw %%mm1,%%mm0\n\t" \
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"paddw %%mm3,%%mm2\n\t" \
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"paddw %%mm5,%%mm4\n\t" \
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"paddw %%mm7,%%mm6\n\t" \
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"paddw %%mm1,%%mm1\n\t" \
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"paddw %%mm3,%%mm3\n\t" \
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"paddw %%mm5,%%mm5\n\t" \
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"paddw %%mm7,%%mm7\n\t" \
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"psubw %%mm0,%%mm1\n\t" \
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"psubw %%mm2,%%mm3\n\t" \
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"psubw %%mm4,%%mm5\n\t" \
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"psubw %%mm6,%%mm7\n\t" \
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/*Performs an 8-point 1-D Hadamard transform.
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The transform is performed in place, except that outputs 0-3 are swapped with
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outputs 4-7.
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Outputs 1, 2, 5 and 6 are negated (which allows us to perform the transform
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in place with no temporary registers).*/
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#define OC_HADAMARD_8x4 \
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OC_HADAMARD_AB_8x4 \
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OC_HADAMARD_C_8x4 \
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/*Performs the first part of the final stage of the Hadamard transform and
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summing of absolute values.
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At the end of this part, %%mm1 will contain the DC coefficient of the
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transform.*/
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#define OC_HADAMARD_C_ABS_ACCUM_A_8x4(_r6,_r7) \
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/*We use the fact that \
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(abs(a+b)+abs(a-b))/2=max(abs(a),abs(b)) \
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to merge the final butterfly with the abs and the first stage of \
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accumulation. \
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Thus we can avoid using pabsw, which is not available until SSSE3. \
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Emulating pabsw takes 3 instructions, so the straightforward MMXEXT \
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implementation would be (3+3)*8+7=55 instructions (+4 for spilling \
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registers). \
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Even with pabsw, it would be (3+1)*8+7=39 instructions (with no spills). \
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This implementation is only 26 (+4 for spilling registers).*/ \
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"#OC_HADAMARD_C_ABS_ACCUM_A_8x4\n\t" \
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"movq %%mm7,"_r7"(%[buf])\n\t" \
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"movq %%mm6,"_r6"(%[buf])\n\t" \
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/*mm7={0x7FFF}x4 \
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mm0=max(abs(mm0),abs(mm1))-0x7FFF*/ \
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"pcmpeqb %%mm7,%%mm7\n\t" \
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"movq %%mm0,%%mm6\n\t" \
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"psrlw $1,%%mm7\n\t" \
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"paddw %%mm1,%%mm6\n\t" \
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"pmaxsw %%mm1,%%mm0\n\t" \
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"paddsw %%mm7,%%mm6\n\t" \
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"psubw %%mm6,%%mm0\n\t" \
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/*mm2=max(abs(mm2),abs(mm3))-0x7FFF \
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mm4=max(abs(mm4),abs(mm5))-0x7FFF*/ \
|
|
"movq %%mm2,%%mm6\n\t" \
|
|
"movq %%mm4,%%mm1\n\t" \
|
|
"pmaxsw %%mm3,%%mm2\n\t" \
|
|
"pmaxsw %%mm5,%%mm4\n\t" \
|
|
"paddw %%mm3,%%mm6\n\t" \
|
|
"paddw %%mm5,%%mm1\n\t" \
|
|
"movq "_r7"(%[buf]),%%mm3\n\t" \
|
|
|
|
/*Performs the second part of the final stage of the Hadamard transform and
|
|
summing of absolute values.*/
|
|
#define OC_HADAMARD_C_ABS_ACCUM_B_8x4(_r6,_r7) \
|
|
"#OC_HADAMARD_C_ABS_ACCUM_B_8x4\n\t" \
|
|
"paddsw %%mm7,%%mm6\n\t" \
|
|
"movq "_r6"(%[buf]),%%mm5\n\t" \
|
|
"paddsw %%mm7,%%mm1\n\t" \
|
|
"psubw %%mm6,%%mm2\n\t" \
|
|
"psubw %%mm1,%%mm4\n\t" \
|
|
/*mm7={1}x4 (needed for the horizontal add that follows) \
|
|
mm0+=mm2+mm4+max(abs(mm3),abs(mm5))-0x7FFF*/ \
|
|
"movq %%mm3,%%mm6\n\t" \
|
|
"pmaxsw %%mm5,%%mm3\n\t" \
|
|
"paddw %%mm2,%%mm0\n\t" \
|
|
"paddw %%mm5,%%mm6\n\t" \
|
|
"paddw %%mm4,%%mm0\n\t" \
|
|
"paddsw %%mm7,%%mm6\n\t" \
|
|
"paddw %%mm3,%%mm0\n\t" \
|
|
"psrlw $14,%%mm7\n\t" \
|
|
"psubw %%mm6,%%mm0\n\t" \
|
|
|
|
/*Performs the last stage of an 8-point 1-D Hadamard transform, takes the
|
|
absolute value of each component, and accumulates everything into mm0.
|
|
This is the only portion of SATD which requires MMXEXT (we could use plain
|
|
MMX, but it takes 4 instructions and an extra register to work around the
|
|
lack of a pmaxsw, which is a pretty serious penalty).*/
|
|
#define OC_HADAMARD_C_ABS_ACCUM_8x4(_r6,_r7) \
|
|
OC_HADAMARD_C_ABS_ACCUM_A_8x4(_r6,_r7) \
|
|
OC_HADAMARD_C_ABS_ACCUM_B_8x4(_r6,_r7) \
|
|
|
|
/*Performs an 8-point 1-D Hadamard transform, takes the absolute value of each
|
|
component, and accumulates everything into mm0.
|
|
Note that mm0 will have an extra 4 added to each column, and that after
|
|
removing this value, the remainder will be half the conventional value.*/
|
|
#define OC_HADAMARD_ABS_ACCUM_8x4(_r6,_r7) \
|
|
OC_HADAMARD_AB_8x4 \
|
|
OC_HADAMARD_C_ABS_ACCUM_8x4(_r6,_r7)
|
|
|
|
/*Performs two 4x4 transposes (mostly) in place.
|
|
On input, {mm0,mm1,mm2,mm3} contains rows {e,f,g,h}, and {mm4,mm5,mm6,mm7}
|
|
contains rows {a,b,c,d}.
|
|
On output, {0x40,0x50,0x60,0x70}+_off(%[buf]) contains {e,f,g,h}^T, and
|
|
{mm4,mm5,mm6,mm7} contains the transposed rows {a,b,c,d}^T.*/
|
|
#define OC_TRANSPOSE_4x4x2(_off) \
|
|
"#OC_TRANSPOSE_4x4x2\n\t" \
|
|
/*First 4x4 transpose:*/ \
|
|
"movq %%mm5,0x10+"_off"(%[buf])\n\t" \
|
|
/*mm0 = e3 e2 e1 e0 \
|
|
mm1 = f3 f2 f1 f0 \
|
|
mm2 = g3 g2 g1 g0 \
|
|
mm3 = h3 h2 h1 h0*/ \
|
|
"movq %%mm2,%%mm5\n\t" \
|
|
"punpcklwd %%mm3,%%mm2\n\t" \
|
|
"punpckhwd %%mm3,%%mm5\n\t" \
|
|
"movq %%mm0,%%mm3\n\t" \
|
|
"punpcklwd %%mm1,%%mm0\n\t" \
|
|
"punpckhwd %%mm1,%%mm3\n\t" \
|
|
/*mm0 = f1 e1 f0 e0 \
|
|
mm3 = f3 e3 f2 e2 \
|
|
mm2 = h1 g1 h0 g0 \
|
|
mm5 = h3 g3 h2 g2*/ \
|
|
"movq %%mm0,%%mm1\n\t" \
|
|
"punpckldq %%mm2,%%mm0\n\t" \
|
|
"punpckhdq %%mm2,%%mm1\n\t" \
|
|
"movq %%mm3,%%mm2\n\t" \
|
|
"punpckhdq %%mm5,%%mm3\n\t" \
|
|
"movq %%mm0,0x40+"_off"(%[buf])\n\t" \
|
|
"punpckldq %%mm5,%%mm2\n\t" \
|
|
/*mm0 = h0 g0 f0 e0 \
|
|
mm1 = h1 g1 f1 e1 \
|
|
mm2 = h2 g2 f2 e2 \
|
|
mm3 = h3 g3 f3 e3*/ \
|
|
"movq 0x10+"_off"(%[buf]),%%mm5\n\t" \
|
|
/*Second 4x4 transpose:*/ \
|
|
/*mm4 = a3 a2 a1 a0 \
|
|
mm5 = b3 b2 b1 b0 \
|
|
mm6 = c3 c2 c1 c0 \
|
|
mm7 = d3 d2 d1 d0*/ \
|
|
"movq %%mm6,%%mm0\n\t" \
|
|
"punpcklwd %%mm7,%%mm6\n\t" \
|
|
"movq %%mm1,0x50+"_off"(%[buf])\n\t" \
|
|
"punpckhwd %%mm7,%%mm0\n\t" \
|
|
"movq %%mm4,%%mm7\n\t" \
|
|
"punpcklwd %%mm5,%%mm4\n\t" \
|
|
"movq %%mm2,0x60+"_off"(%[buf])\n\t" \
|
|
"punpckhwd %%mm5,%%mm7\n\t" \
|
|
/*mm4 = b1 a1 b0 a0 \
|
|
mm7 = b3 a3 b2 a2 \
|
|
mm6 = d1 c1 d0 c0 \
|
|
mm0 = d3 c3 d2 c2*/ \
|
|
"movq %%mm4,%%mm5\n\t" \
|
|
"punpckldq %%mm6,%%mm4\n\t" \
|
|
"movq %%mm3,0x70+"_off"(%[buf])\n\t" \
|
|
"punpckhdq %%mm6,%%mm5\n\t" \
|
|
"movq %%mm7,%%mm6\n\t" \
|
|
"punpckhdq %%mm0,%%mm7\n\t" \
|
|
"punpckldq %%mm0,%%mm6\n\t" \
|
|
/*mm4 = d0 c0 b0 a0 \
|
|
mm5 = d1 c1 b1 a1 \
|
|
mm6 = d2 c2 b2 a2 \
|
|
mm7 = d3 c3 b3 a3*/ \
|
|
|
|
static unsigned oc_int_frag_satd_thresh_mmxext(const unsigned char *_src,
|
|
int _src_ystride,const unsigned char *_ref,int _ref_ystride,unsigned _thresh){
|
|
OC_ALIGN8(ogg_int16_t buf[64]);
|
|
ogg_int16_t *bufp;
|
|
unsigned ret;
|
|
unsigned ret2;
|
|
bufp=buf;
|
|
__asm__ __volatile__(
|
|
OC_LOAD_SUB_8x4("0x00")
|
|
OC_HADAMARD_8x4
|
|
OC_TRANSPOSE_4x4x2("0x00")
|
|
/*Finish swapping out this 8x4 block to make room for the next one.
|
|
mm0...mm3 have been swapped out already.*/
|
|
"movq %%mm4,0x00(%[buf])\n\t"
|
|
"movq %%mm5,0x10(%[buf])\n\t"
|
|
"movq %%mm6,0x20(%[buf])\n\t"
|
|
"movq %%mm7,0x30(%[buf])\n\t"
|
|
OC_LOAD_SUB_8x4("0x04")
|
|
OC_HADAMARD_8x4
|
|
OC_TRANSPOSE_4x4x2("0x08")
|
|
/*Here the first 4x4 block of output from the last transpose is the second
|
|
4x4 block of input for the next transform.
|
|
We have cleverly arranged that it already be in the appropriate place, so
|
|
we only have to do half the loads.*/
|
|
"movq 0x10(%[buf]),%%mm1\n\t"
|
|
"movq 0x20(%[buf]),%%mm2\n\t"
|
|
"movq 0x30(%[buf]),%%mm3\n\t"
|
|
"movq 0x00(%[buf]),%%mm0\n\t"
|
|
OC_HADAMARD_ABS_ACCUM_8x4("0x28","0x38")
|
|
/*Up to this point, everything fit in 16 bits (8 input + 1 for the
|
|
difference + 2*3 for the two 8-point 1-D Hadamards - 1 for the abs - 1
|
|
for the factor of two we dropped + 3 for the vertical accumulation).
|
|
Now we finally have to promote things to dwords.
|
|
We break this part out of OC_HADAMARD_ABS_ACCUM_8x4 to hide the long
|
|
latency of pmaddwd by starting the next series of loads now.*/
|
|
"mov %[thresh],%[ret2]\n\t"
|
|
"pmaddwd %%mm7,%%mm0\n\t"
|
|
"movq 0x50(%[buf]),%%mm1\n\t"
|
|
"movq 0x58(%[buf]),%%mm5\n\t"
|
|
"movq %%mm0,%%mm4\n\t"
|
|
"movq 0x60(%[buf]),%%mm2\n\t"
|
|
"punpckhdq %%mm0,%%mm0\n\t"
|
|
"movq 0x68(%[buf]),%%mm6\n\t"
|
|
"paddd %%mm0,%%mm4\n\t"
|
|
"movq 0x70(%[buf]),%%mm3\n\t"
|
|
"movd %%mm4,%[ret]\n\t"
|
|
"movq 0x78(%[buf]),%%mm7\n\t"
|
|
/*The sums produced by OC_HADAMARD_ABS_ACCUM_8x4 each have an extra 4
|
|
added to them, and a factor of two removed; correct the final sum here.*/
|
|
"lea -32(%[ret],%[ret]),%[ret]\n\t"
|
|
"movq 0x40(%[buf]),%%mm0\n\t"
|
|
"cmp %[ret2],%[ret]\n\t"
|
|
"movq 0x48(%[buf]),%%mm4\n\t"
|
|
"jae 1f\n\t"
|
|
OC_HADAMARD_ABS_ACCUM_8x4("0x68","0x78")
|
|
"pmaddwd %%mm7,%%mm0\n\t"
|
|
/*There isn't much to stick in here to hide the latency this time, but the
|
|
alternative to pmaddwd is movq->punpcklwd->punpckhwd->paddd, whose
|
|
latency is even worse.*/
|
|
"sub $32,%[ret]\n\t"
|
|
"movq %%mm0,%%mm4\n\t"
|
|
"punpckhdq %%mm0,%%mm0\n\t"
|
|
"paddd %%mm0,%%mm4\n\t"
|
|
"movd %%mm4,%[ret2]\n\t"
|
|
"lea (%[ret],%[ret2],2),%[ret]\n\t"
|
|
".p2align 4,,15\n\t"
|
|
"1:\n\t"
|
|
/*Although it looks like we're using 7 registers here, gcc can alias %[ret]
|
|
and %[ret2] with some of the inputs, since for once we don't write to
|
|
them until after we're done using everything but %[buf] (which is also
|
|
listed as an output to ensure gcc _doesn't_ alias them against it).*/
|
|
/*Note that _src_ystride and _ref_ystride must be given non-overlapping
|
|
constraints, otherewise if gcc can prove they're equal it will allocate
|
|
them to the same register (which is bad); _src and _ref face a similar
|
|
problem, though those are never actually the same.*/
|
|
:[ret]"=a"(ret),[ret2]"=r"(ret2),[buf]"+r"(bufp)
|
|
:[src]"r"(_src),[src_ystride]"c"((ptrdiff_t)_src_ystride),
|
|
[ref]"r"(_ref),[ref_ystride]"d"((ptrdiff_t)_ref_ystride),
|
|
[thresh]"m"(_thresh)
|
|
/*We have to use neg, so we actually clobber the condition codes for once
|
|
(not to mention cmp, sub, and add).*/
|
|
:"cc"
|
|
);
|
|
return ret;
|
|
}
|
|
|
|
unsigned oc_enc_frag_satd_thresh_mmxext(const unsigned char *_src,
|
|
const unsigned char *_ref,int _ystride,unsigned _thresh){
|
|
return oc_int_frag_satd_thresh_mmxext(_src,_ystride,_ref,_ystride,_thresh);
|
|
}
|
|
|
|
/*Our internal implementation of frag_copy2 takes an extra stride parameter so
|
|
we can share code with oc_enc_frag_satd2_thresh_mmxext().*/
|
|
static void oc_int_frag_copy2_mmxext(unsigned char *_dst,int _dst_ystride,
|
|
const unsigned char *_src1,const unsigned char *_src2,int _src_ystride){
|
|
__asm__ __volatile__(
|
|
/*Load the first 3 rows.*/
|
|
"movq (%[src1]),%%mm0\n\t"
|
|
"movq (%[src2]),%%mm1\n\t"
|
|
"movq (%[src1],%[src_ystride]),%%mm2\n\t"
|
|
"lea (%[src1],%[src_ystride],2),%[src1]\n\t"
|
|
"movq (%[src2],%[src_ystride]),%%mm3\n\t"
|
|
"lea (%[src2],%[src_ystride],2),%[src2]\n\t"
|
|
"pxor %%mm7,%%mm7\n\t"
|
|
"movq (%[src1]),%%mm4\n\t"
|
|
"pcmpeqb %%mm6,%%mm6\n\t"
|
|
"movq (%[src2]),%%mm5\n\t"
|
|
/*mm7={1}x8.*/
|
|
"psubb %%mm6,%%mm7\n\t"
|
|
/*Start averaging %%mm0 and %%mm1 into %%mm6.*/
|
|
"movq %%mm0,%%mm6\n\t"
|
|
"pxor %%mm1,%%mm0\n\t"
|
|
"pavgb %%mm1,%%mm6\n\t"
|
|
/*%%mm1 is free, start averaging %%mm3 into %%mm2 using %%mm1.*/
|
|
"movq %%mm2,%%mm1\n\t"
|
|
"pand %%mm7,%%mm0\n\t"
|
|
"pavgb %%mm3,%%mm2\n\t"
|
|
"pxor %%mm3,%%mm1\n\t"
|
|
/*%%mm3 is free.*/
|
|
"psubb %%mm0,%%mm6\n\t"
|
|
/*%%mm0 is free, start loading the next row.*/
|
|
"movq (%[src1],%[src_ystride]),%%mm0\n\t"
|
|
/*Start averaging %%mm5 and %%mm4 using %%mm3.*/
|
|
"movq %%mm4,%%mm3\n\t"
|
|
/*%%mm6 (row 0) is done; write it out.*/
|
|
"movq %%mm6,(%[dst])\n\t"
|
|
"pand %%mm7,%%mm1\n\t"
|
|
"pavgb %%mm5,%%mm4\n\t"
|
|
"psubb %%mm1,%%mm2\n\t"
|
|
/*%%mm1 is free, continue loading the next row.*/
|
|
"movq (%[src2],%[src_ystride]),%%mm1\n\t"
|
|
"pxor %%mm5,%%mm3\n\t"
|
|
"lea (%[src1],%[src_ystride],2),%[src1]\n\t"
|
|
/*%%mm2 (row 1) is done; write it out.*/
|
|
"movq %%mm2,(%[dst],%[dst_ystride])\n\t"
|
|
"pand %%mm7,%%mm3\n\t"
|
|
/*Start loading the next row.*/
|
|
"movq (%[src1]),%%mm2\n\t"
|
|
"lea (%[dst],%[dst_ystride],2),%[dst]\n\t"
|
|
"psubb %%mm3,%%mm4\n\t"
|
|
"lea (%[src2],%[src_ystride],2),%[src2]\n\t"
|
|
/*%%mm4 (row 2) is done; write it out.*/
|
|
"movq %%mm4,(%[dst])\n\t"
|
|
/*Continue loading the next row.*/
|
|
"movq (%[src2]),%%mm3\n\t"
|
|
/*Start averaging %%mm0 and %%mm1 into %%mm6.*/
|
|
"movq %%mm0,%%mm6\n\t"
|
|
"pxor %%mm1,%%mm0\n\t"
|
|
/*Start loading the next row.*/
|
|
"movq (%[src1],%[src_ystride]),%%mm4\n\t"
|
|
"pavgb %%mm1,%%mm6\n\t"
|
|
/*%%mm1 is free; start averaging %%mm3 into %%mm2 using %%mm1.*/
|
|
"movq %%mm2,%%mm1\n\t"
|
|
"pand %%mm7,%%mm0\n\t"
|
|
/*Continue loading the next row.*/
|
|
"movq (%[src2],%[src_ystride]),%%mm5\n\t"
|
|
"pavgb %%mm3,%%mm2\n\t"
|
|
"lea (%[src1],%[src_ystride],2),%[src1]\n\t"
|
|
"pxor %%mm3,%%mm1\n\t"
|
|
/*%%mm3 is free.*/
|
|
"psubb %%mm0,%%mm6\n\t"
|
|
/*%%mm0 is free, start loading the next row.*/
|
|
"movq (%[src1]),%%mm0\n\t"
|
|
/*Start averaging %%mm5 into %%mm4 using %%mm3.*/
|
|
"movq %%mm4,%%mm3\n\t"
|
|
/*%%mm6 (row 3) is done; write it out.*/
|
|
"movq %%mm6,(%[dst],%[dst_ystride])\n\t"
|
|
"pand %%mm7,%%mm1\n\t"
|
|
"lea (%[src2],%[src_ystride],2),%[src2]\n\t"
|
|
"pavgb %%mm5,%%mm4\n\t"
|
|
"lea (%[dst],%[dst_ystride],2),%[dst]\n\t"
|
|
"psubb %%mm1,%%mm2\n\t"
|
|
/*%%mm1 is free; continue loading the next row.*/
|
|
"movq (%[src2]),%%mm1\n\t"
|
|
"pxor %%mm5,%%mm3\n\t"
|
|
/*%%mm2 (row 4) is done; write it out.*/
|
|
"movq %%mm2,(%[dst])\n\t"
|
|
"pand %%mm7,%%mm3\n\t"
|
|
/*Start loading the next row.*/
|
|
"movq (%[src1],%[src_ystride]),%%mm2\n\t"
|
|
"psubb %%mm3,%%mm4\n\t"
|
|
/*Start averaging %%mm0 and %%mm1 into %%mm6.*/
|
|
"movq %%mm0,%%mm6\n\t"
|
|
/*Continue loading the next row.*/
|
|
"movq (%[src2],%[src_ystride]),%%mm3\n\t"
|
|
/*%%mm4 (row 5) is done; write it out.*/
|
|
"movq %%mm4,(%[dst],%[dst_ystride])\n\t"
|
|
"pxor %%mm1,%%mm0\n\t"
|
|
"pavgb %%mm1,%%mm6\n\t"
|
|
/*%%mm4 is free; start averaging %%mm3 into %%mm2 using %%mm4.*/
|
|
"movq %%mm2,%%mm4\n\t"
|
|
"pand %%mm7,%%mm0\n\t"
|
|
"pavgb %%mm3,%%mm2\n\t"
|
|
"pxor %%mm3,%%mm4\n\t"
|
|
"lea (%[dst],%[dst_ystride],2),%[dst]\n\t"
|
|
"psubb %%mm0,%%mm6\n\t"
|
|
"pand %%mm7,%%mm4\n\t"
|
|
/*%%mm6 (row 6) is done, write it out.*/
|
|
"movq %%mm6,(%[dst])\n\t"
|
|
"psubb %%mm4,%%mm2\n\t"
|
|
/*%%mm2 (row 7) is done, write it out.*/
|
|
"movq %%mm2,(%[dst],%[dst_ystride])\n\t"
|
|
:[dst]"+r"(_dst),[src1]"+%r"(_src1),[src2]"+r"(_src2)
|
|
:[dst_ystride]"r"((ptrdiff_t)_dst_ystride),
|
|
[src_ystride]"r"((ptrdiff_t)_src_ystride)
|
|
:"memory"
|
|
);
|
|
}
|
|
|
|
unsigned oc_enc_frag_satd2_thresh_mmxext(const unsigned char *_src,
|
|
const unsigned char *_ref1,const unsigned char *_ref2,int _ystride,
|
|
unsigned _thresh){
|
|
OC_ALIGN8(unsigned char ref[64]);
|
|
oc_int_frag_copy2_mmxext(ref,8,_ref1,_ref2,_ystride);
|
|
return oc_int_frag_satd_thresh_mmxext(_src,_ystride,ref,8,_thresh);
|
|
}
|
|
|
|
unsigned oc_enc_frag_intra_satd_mmxext(const unsigned char *_src,
|
|
int _ystride){
|
|
OC_ALIGN8(ogg_int16_t buf[64]);
|
|
ogg_int16_t *bufp;
|
|
unsigned ret;
|
|
unsigned ret2;
|
|
bufp=buf;
|
|
__asm__ __volatile__(
|
|
OC_LOAD_8x4("0x00")
|
|
OC_HADAMARD_8x4
|
|
OC_TRANSPOSE_4x4x2("0x00")
|
|
/*Finish swapping out this 8x4 block to make room for the next one.
|
|
mm0...mm3 have been swapped out already.*/
|
|
"movq %%mm4,0x00(%[buf])\n\t"
|
|
"movq %%mm5,0x10(%[buf])\n\t"
|
|
"movq %%mm6,0x20(%[buf])\n\t"
|
|
"movq %%mm7,0x30(%[buf])\n\t"
|
|
OC_LOAD_8x4("0x04")
|
|
OC_HADAMARD_8x4
|
|
OC_TRANSPOSE_4x4x2("0x08")
|
|
/*Here the first 4x4 block of output from the last transpose is the second
|
|
4x4 block of input for the next transform.
|
|
We have cleverly arranged that it already be in the appropriate place, so
|
|
we only have to do half the loads.*/
|
|
"movq 0x10(%[buf]),%%mm1\n\t"
|
|
"movq 0x20(%[buf]),%%mm2\n\t"
|
|
"movq 0x30(%[buf]),%%mm3\n\t"
|
|
"movq 0x00(%[buf]),%%mm0\n\t"
|
|
/*We split out the stages here so we can save the DC coefficient in the
|
|
middle.*/
|
|
OC_HADAMARD_AB_8x4
|
|
OC_HADAMARD_C_ABS_ACCUM_A_8x4("0x28","0x38")
|
|
"movd %%mm1,%[ret]\n\t"
|
|
OC_HADAMARD_C_ABS_ACCUM_B_8x4("0x28","0x38")
|
|
/*Up to this point, everything fit in 16 bits (8 input + 1 for the
|
|
difference + 2*3 for the two 8-point 1-D Hadamards - 1 for the abs - 1
|
|
for the factor of two we dropped + 3 for the vertical accumulation).
|
|
Now we finally have to promote things to dwords.
|
|
We break this part out of OC_HADAMARD_ABS_ACCUM_8x4 to hide the long
|
|
latency of pmaddwd by starting the next series of loads now.*/
|
|
"pmaddwd %%mm7,%%mm0\n\t"
|
|
"movq 0x50(%[buf]),%%mm1\n\t"
|
|
"movq 0x58(%[buf]),%%mm5\n\t"
|
|
"movq 0x60(%[buf]),%%mm2\n\t"
|
|
"movq %%mm0,%%mm4\n\t"
|
|
"movq 0x68(%[buf]),%%mm6\n\t"
|
|
"punpckhdq %%mm0,%%mm0\n\t"
|
|
"movq 0x70(%[buf]),%%mm3\n\t"
|
|
"paddd %%mm0,%%mm4\n\t"
|
|
"movq 0x78(%[buf]),%%mm7\n\t"
|
|
"movd %%mm4,%[ret2]\n\t"
|
|
"movq 0x40(%[buf]),%%mm0\n\t"
|
|
"movq 0x48(%[buf]),%%mm4\n\t"
|
|
OC_HADAMARD_ABS_ACCUM_8x4("0x68","0x78")
|
|
"pmaddwd %%mm7,%%mm0\n\t"
|
|
/*We assume that the DC coefficient is always positive (which is true,
|
|
because the input to the INTRA transform was not a difference).*/
|
|
"movzx %w[ret],%[ret]\n\t"
|
|
"add %[ret2],%[ret2]\n\t"
|
|
"sub %[ret],%[ret2]\n\t"
|
|
"movq %%mm0,%%mm4\n\t"
|
|
"punpckhdq %%mm0,%%mm0\n\t"
|
|
"paddd %%mm0,%%mm4\n\t"
|
|
"movd %%mm4,%[ret]\n\t"
|
|
"lea -64(%[ret2],%[ret],2),%[ret]\n\t"
|
|
/*Although it looks like we're using 7 registers here, gcc can alias %[ret]
|
|
and %[ret2] with some of the inputs, since for once we don't write to
|
|
them until after we're done using everything but %[buf] (which is also
|
|
listed as an output to ensure gcc _doesn't_ alias them against it).*/
|
|
:[ret]"=a"(ret),[ret2]"=r"(ret2),[buf]"+r"(bufp)
|
|
:[src]"r"(_src),[src4]"r"(_src+4*_ystride),
|
|
[ystride]"r"((ptrdiff_t)_ystride),[ystride3]"r"((ptrdiff_t)3*_ystride)
|
|
/*We have to use sub, so we actually clobber the condition codes for once
|
|
(not to mention add).*/
|
|
:"cc"
|
|
);
|
|
return ret;
|
|
}
|
|
|
|
void oc_enc_frag_sub_mmx(ogg_int16_t _residue[64],
|
|
const unsigned char *_src,const unsigned char *_ref,int _ystride){
|
|
int i;
|
|
__asm__ __volatile__("pxor %%mm7,%%mm7\n\t"::);
|
|
for(i=4;i-->0;){
|
|
__asm__ __volatile__(
|
|
/*mm0=[src]*/
|
|
"movq (%[src]),%%mm0\n\t"
|
|
/*mm1=[ref]*/
|
|
"movq (%[ref]),%%mm1\n\t"
|
|
/*mm4=[src+ystride]*/
|
|
"movq (%[src],%[ystride]),%%mm4\n\t"
|
|
/*mm5=[ref+ystride]*/
|
|
"movq (%[ref],%[ystride]),%%mm5\n\t"
|
|
/*Compute [src]-[ref].*/
|
|
"movq %%mm0,%%mm2\n\t"
|
|
"punpcklbw %%mm7,%%mm0\n\t"
|
|
"movq %%mm1,%%mm3\n\t"
|
|
"punpckhbw %%mm7,%%mm2\n\t"
|
|
"punpcklbw %%mm7,%%mm1\n\t"
|
|
"punpckhbw %%mm7,%%mm3\n\t"
|
|
"psubw %%mm1,%%mm0\n\t"
|
|
"psubw %%mm3,%%mm2\n\t"
|
|
/*Compute [src+ystride]-[ref+ystride].*/
|
|
"movq %%mm4,%%mm1\n\t"
|
|
"punpcklbw %%mm7,%%mm4\n\t"
|
|
"movq %%mm5,%%mm3\n\t"
|
|
"punpckhbw %%mm7,%%mm1\n\t"
|
|
"lea (%[src],%[ystride],2),%[src]\n\t"
|
|
"punpcklbw %%mm7,%%mm5\n\t"
|
|
"lea (%[ref],%[ystride],2),%[ref]\n\t"
|
|
"punpckhbw %%mm7,%%mm3\n\t"
|
|
"psubw %%mm5,%%mm4\n\t"
|
|
"psubw %%mm3,%%mm1\n\t"
|
|
/*Write the answer out.*/
|
|
"movq %%mm0,0x00(%[residue])\n\t"
|
|
"movq %%mm2,0x08(%[residue])\n\t"
|
|
"movq %%mm4,0x10(%[residue])\n\t"
|
|
"movq %%mm1,0x18(%[residue])\n\t"
|
|
"lea 0x20(%[residue]),%[residue]\n\t"
|
|
:[residue]"+r"(_residue),[src]"+r"(_src),[ref]"+r"(_ref)
|
|
:[ystride]"r"((ptrdiff_t)_ystride)
|
|
:"memory"
|
|
);
|
|
}
|
|
}
|
|
|
|
void oc_enc_frag_sub_128_mmx(ogg_int16_t _residue[64],
|
|
const unsigned char *_src,int _ystride){
|
|
ptrdiff_t ystride3;
|
|
__asm__ __volatile__(
|
|
/*mm0=[src]*/
|
|
"movq (%[src]),%%mm0\n\t"
|
|
/*mm1=[src+ystride]*/
|
|
"movq (%[src],%[ystride]),%%mm1\n\t"
|
|
/*mm6={-1}x4*/
|
|
"pcmpeqw %%mm6,%%mm6\n\t"
|
|
/*mm2=[src+2*ystride]*/
|
|
"movq (%[src],%[ystride],2),%%mm2\n\t"
|
|
/*[ystride3]=3*[ystride]*/
|
|
"lea (%[ystride],%[ystride],2),%[ystride3]\n\t"
|
|
/*mm6={1}x4*/
|
|
"psllw $15,%%mm6\n\t"
|
|
/*mm3=[src+3*ystride]*/
|
|
"movq (%[src],%[ystride3]),%%mm3\n\t"
|
|
/*mm6={128}x4*/
|
|
"psrlw $8,%%mm6\n\t"
|
|
/*mm7=0*/
|
|
"pxor %%mm7,%%mm7\n\t"
|
|
/*[src]=[src]+4*[ystride]*/
|
|
"lea (%[src],%[ystride],4),%[src]\n\t"
|
|
/*Compute [src]-128 and [src+ystride]-128*/
|
|
"movq %%mm0,%%mm4\n\t"
|
|
"punpcklbw %%mm7,%%mm0\n\t"
|
|
"movq %%mm1,%%mm5\n\t"
|
|
"punpckhbw %%mm7,%%mm4\n\t"
|
|
"psubw %%mm6,%%mm0\n\t"
|
|
"punpcklbw %%mm7,%%mm1\n\t"
|
|
"psubw %%mm6,%%mm4\n\t"
|
|
"punpckhbw %%mm7,%%mm5\n\t"
|
|
"psubw %%mm6,%%mm1\n\t"
|
|
"psubw %%mm6,%%mm5\n\t"
|
|
/*Write the answer out.*/
|
|
"movq %%mm0,0x00(%[residue])\n\t"
|
|
"movq %%mm4,0x08(%[residue])\n\t"
|
|
"movq %%mm1,0x10(%[residue])\n\t"
|
|
"movq %%mm5,0x18(%[residue])\n\t"
|
|
/*mm0=[src+4*ystride]*/
|
|
"movq (%[src]),%%mm0\n\t"
|
|
/*mm1=[src+5*ystride]*/
|
|
"movq (%[src],%[ystride]),%%mm1\n\t"
|
|
/*Compute [src+2*ystride]-128 and [src+3*ystride]-128*/
|
|
"movq %%mm2,%%mm4\n\t"
|
|
"punpcklbw %%mm7,%%mm2\n\t"
|
|
"movq %%mm3,%%mm5\n\t"
|
|
"punpckhbw %%mm7,%%mm4\n\t"
|
|
"psubw %%mm6,%%mm2\n\t"
|
|
"punpcklbw %%mm7,%%mm3\n\t"
|
|
"psubw %%mm6,%%mm4\n\t"
|
|
"punpckhbw %%mm7,%%mm5\n\t"
|
|
"psubw %%mm6,%%mm3\n\t"
|
|
"psubw %%mm6,%%mm5\n\t"
|
|
/*Write the answer out.*/
|
|
"movq %%mm2,0x20(%[residue])\n\t"
|
|
"movq %%mm4,0x28(%[residue])\n\t"
|
|
"movq %%mm3,0x30(%[residue])\n\t"
|
|
"movq %%mm5,0x38(%[residue])\n\t"
|
|
/*mm2=[src+6*ystride]*/
|
|
"movq (%[src],%[ystride],2),%%mm2\n\t"
|
|
/*mm3=[src+7*ystride]*/
|
|
"movq (%[src],%[ystride3]),%%mm3\n\t"
|
|
/*Compute [src+4*ystride]-128 and [src+5*ystride]-128*/
|
|
"movq %%mm0,%%mm4\n\t"
|
|
"punpcklbw %%mm7,%%mm0\n\t"
|
|
"movq %%mm1,%%mm5\n\t"
|
|
"punpckhbw %%mm7,%%mm4\n\t"
|
|
"psubw %%mm6,%%mm0\n\t"
|
|
"punpcklbw %%mm7,%%mm1\n\t"
|
|
"psubw %%mm6,%%mm4\n\t"
|
|
"punpckhbw %%mm7,%%mm5\n\t"
|
|
"psubw %%mm6,%%mm1\n\t"
|
|
"psubw %%mm6,%%mm5\n\t"
|
|
/*Write the answer out.*/
|
|
"movq %%mm0,0x40(%[residue])\n\t"
|
|
"movq %%mm4,0x48(%[residue])\n\t"
|
|
"movq %%mm1,0x50(%[residue])\n\t"
|
|
"movq %%mm5,0x58(%[residue])\n\t"
|
|
/*Compute [src+6*ystride]-128 and [src+7*ystride]-128*/
|
|
"movq %%mm2,%%mm4\n\t"
|
|
"punpcklbw %%mm7,%%mm2\n\t"
|
|
"movq %%mm3,%%mm5\n\t"
|
|
"punpckhbw %%mm7,%%mm4\n\t"
|
|
"psubw %%mm6,%%mm2\n\t"
|
|
"punpcklbw %%mm7,%%mm3\n\t"
|
|
"psubw %%mm6,%%mm4\n\t"
|
|
"punpckhbw %%mm7,%%mm5\n\t"
|
|
"psubw %%mm6,%%mm3\n\t"
|
|
"psubw %%mm6,%%mm5\n\t"
|
|
/*Write the answer out.*/
|
|
"movq %%mm2,0x60(%[residue])\n\t"
|
|
"movq %%mm4,0x68(%[residue])\n\t"
|
|
"movq %%mm3,0x70(%[residue])\n\t"
|
|
"movq %%mm5,0x78(%[residue])\n\t"
|
|
:[src]"+r"(_src),[ystride3]"=&r"(ystride3)
|
|
:[residue]"r"(_residue),[ystride]"r"((ptrdiff_t)_ystride)
|
|
:"memory"
|
|
);
|
|
}
|
|
|
|
void oc_enc_frag_copy2_mmxext(unsigned char *_dst,
|
|
const unsigned char *_src1,const unsigned char *_src2,int _ystride){
|
|
oc_int_frag_copy2_mmxext(_dst,_ystride,_src1,_src2,_ystride);
|
|
}
|
|
|
|
#endif
|