ffmpeg / libavcodec / i386 / dsputil_h264_template_mmx.c @ 5509bffa
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/*
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* Copyright (c) 2005 Zoltan Hidvegi <hzoli -a- hzoli -d- com>,
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* Loren Merritt
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*
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* This library 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 of the License, or (at your option) any later version.
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*
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* This library 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 this library; 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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/**
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* MMX optimized version of (put|avg)_h264_chroma_mc8.
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* H264_CHROMA_MC8_TMPL must be defined to the desired function name
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* H264_CHROMA_OP must be defined to empty for put and pavgb/pavgusb for avg
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* H264_CHROMA_MC8_MV0 must be defined to a (put|avg)_pixels8 function
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*/
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static void H264_CHROMA_MC8_TMPL(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y) |
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{
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uint64_t AA __align8; |
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uint64_t DD __align8; |
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int i;
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if(y==0 && x==0) { |
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/* no filter needed */
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H264_CHROMA_MC8_MV0(dst, src, stride, h); |
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return;
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} |
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assert(x<8 && y<8 && x>=0 && y>=0); |
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if(y==0) |
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{
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/* horizontal filter only */
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asm volatile("movd %0, %%mm5\n\t" |
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"punpcklwd %%mm5, %%mm5\n\t"
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"punpckldq %%mm5, %%mm5\n\t" /* mm5 = B = x */ |
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"movq %1, %%mm4\n\t"
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"pxor %%mm7, %%mm7\n\t"
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"psubw %%mm5, %%mm4\n\t" /* mm4 = A = 8-x */ |
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: : "rm" (x), "m" (ff_pw_8)); |
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for(i=0; i<h; i++) { |
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asm volatile( |
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/* mm0 = src[0..7], mm1 = src[1..8] */
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"movq %0, %%mm0\n\t"
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"movq %1, %%mm1\n\t"
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: : "m" (src[0]), "m" (src[1])); |
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asm volatile( |
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/* [mm2,mm3] = A * src[0..7] */
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"movq %%mm0, %%mm2\n\t"
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"punpcklbw %%mm7, %%mm2\n\t"
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"pmullw %%mm4, %%mm2\n\t"
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"movq %%mm0, %%mm3\n\t"
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"punpckhbw %%mm7, %%mm3\n\t"
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"pmullw %%mm4, %%mm3\n\t"
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/* [mm2,mm3] += B * src[1..8] */
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"movq %%mm1, %%mm0\n\t"
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"punpcklbw %%mm7, %%mm0\n\t"
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"pmullw %%mm5, %%mm0\n\t"
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"punpckhbw %%mm7, %%mm1\n\t"
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"pmullw %%mm5, %%mm1\n\t"
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"paddw %%mm0, %%mm2\n\t"
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"paddw %%mm1, %%mm3\n\t"
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/* dst[0..7] = pack(([mm2,mm3] + 32) >> 6) */
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"paddw %1, %%mm2\n\t"
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"paddw %1, %%mm3\n\t"
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"psrlw $3, %%mm2\n\t"
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"psrlw $3, %%mm3\n\t"
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"packuswb %%mm3, %%mm2\n\t"
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H264_CHROMA_OP(%0, %%mm2)
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"movq %%mm2, %0\n\t"
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: "=m" (dst[0]) : "m" (ff_pw_4)); |
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src += stride; |
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dst += stride; |
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} |
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return;
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} |
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if(x==0) |
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{
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/* vertical filter only */
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asm volatile("movd %0, %%mm6\n\t" |
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"punpcklwd %%mm6, %%mm6\n\t"
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"punpckldq %%mm6, %%mm6\n\t" /* mm6 = C = y */ |
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"movq %1, %%mm4\n\t"
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"pxor %%mm7, %%mm7\n\t"
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"psubw %%mm6, %%mm4\n\t" /* mm4 = A = 8-y */ |
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: : "rm" (y), "m" (ff_pw_8)); |
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asm volatile( |
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/* mm0 = src[0..7] */
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"movq %0, %%mm0\n\t"
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: : "m" (src[0])); |
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for(i=0; i<h; i++) { |
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asm volatile( |
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/* [mm2,mm3] = A * src[0..7] */
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"movq %mm0, %mm2\n\t"
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"punpcklbw %mm7, %mm2\n\t"
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"pmullw %mm4, %mm2\n\t"
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"movq %mm0, %mm3\n\t"
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"punpckhbw %mm7, %mm3\n\t"
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"pmullw %mm4, %mm3\n\t");
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src += stride; |
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asm volatile( |
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/* mm0 = src[0..7] */
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"movq %0, %%mm0\n\t"
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: : "m" (src[0])); |
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asm volatile( |
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/* [mm2,mm3] += C * src[0..7] */
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"movq %mm0, %mm1\n\t"
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"punpcklbw %mm7, %mm1\n\t"
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"pmullw %mm6, %mm1\n\t"
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"paddw %mm1, %mm2\n\t"
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"movq %mm0, %mm5\n\t"
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"punpckhbw %mm7, %mm5\n\t"
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"pmullw %mm6, %mm5\n\t"
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"paddw %mm5, %mm3\n\t");
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asm volatile( |
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/* dst[0..7] = pack(([mm2,mm3] + 32) >> 6) */
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"paddw %1, %%mm2\n\t"
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"paddw %1, %%mm3\n\t"
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"psrlw $3, %%mm2\n\t"
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"psrlw $3, %%mm3\n\t"
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"packuswb %%mm3, %%mm2\n\t"
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H264_CHROMA_OP(%0, %%mm2)
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"movq %%mm2, %0\n\t"
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: "=m" (dst[0]) : "m" (ff_pw_4)); |
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dst += stride; |
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} |
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return;
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} |
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/* general case, bilinear */
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asm volatile("movd %2, %%mm4\n\t" |
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"movd %3, %%mm6\n\t"
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"punpcklwd %%mm4, %%mm4\n\t"
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"punpcklwd %%mm6, %%mm6\n\t"
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"punpckldq %%mm4, %%mm4\n\t" /* mm4 = x words */ |
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"punpckldq %%mm6, %%mm6\n\t" /* mm6 = y words */ |
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"movq %%mm4, %%mm5\n\t"
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"pmullw %%mm6, %%mm4\n\t" /* mm4 = x * y */ |
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"psllw $3, %%mm5\n\t"
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"psllw $3, %%mm6\n\t"
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"movq %%mm5, %%mm7\n\t"
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"paddw %%mm6, %%mm7\n\t"
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"movq %%mm4, %1\n\t" /* DD = x * y */ |
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"psubw %%mm4, %%mm5\n\t" /* mm5 = B = 8x - xy */ |
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"psubw %%mm4, %%mm6\n\t" /* mm6 = C = 8y - xy */ |
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"paddw %4, %%mm4\n\t"
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"psubw %%mm7, %%mm4\n\t" /* mm4 = A = xy - (8x+8y) + 64 */ |
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"pxor %%mm7, %%mm7\n\t"
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"movq %%mm4, %0\n\t"
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: "=m" (AA), "=m" (DD) : "rm" (x), "rm" (y), "m" (ff_pw_64)); |
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asm volatile( |
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/* mm0 = src[0..7], mm1 = src[1..8] */
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"movq %0, %%mm0\n\t"
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"movq %1, %%mm1\n\t"
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: : "m" (src[0]), "m" (src[1])); |
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for(i=0; i<h; i++) { |
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asm volatile( |
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/* [mm2,mm3] = A * src[0..7] */
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"movq %%mm0, %%mm2\n\t"
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"punpcklbw %%mm7, %%mm2\n\t"
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"pmullw %0, %%mm2\n\t"
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"movq %%mm0, %%mm3\n\t"
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"punpckhbw %%mm7, %%mm3\n\t"
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"pmullw %0, %%mm3\n\t"
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/* [mm2,mm3] += B * src[1..8] */
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"movq %%mm1, %%mm0\n\t"
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"punpcklbw %%mm7, %%mm0\n\t"
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"pmullw %%mm5, %%mm0\n\t"
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"punpckhbw %%mm7, %%mm1\n\t"
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"pmullw %%mm5, %%mm1\n\t"
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"paddw %%mm0, %%mm2\n\t"
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"paddw %%mm1, %%mm3\n\t"
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: : "m" (AA));
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src += stride; |
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asm volatile( |
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/* mm0 = src[0..7], mm1 = src[1..8] */
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"movq %0, %%mm0\n\t"
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"movq %1, %%mm1\n\t"
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: : "m" (src[0]), "m" (src[1])); |
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asm volatile( |
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/* [mm2,mm3] += C * src[0..7] */
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"movq %mm0, %mm4\n\t"
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"punpcklbw %mm7, %mm4\n\t"
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"pmullw %mm6, %mm4\n\t"
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"paddw %mm4, %mm2\n\t"
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"movq %mm0, %mm4\n\t"
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"punpckhbw %mm7, %mm4\n\t"
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"pmullw %mm6, %mm4\n\t"
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"paddw %mm4, %mm3\n\t");
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asm volatile( |
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/* [mm2,mm3] += D * src[1..8] */
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"movq %%mm1, %%mm4\n\t"
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"punpcklbw %%mm7, %%mm4\n\t"
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"pmullw %0, %%mm4\n\t"
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"paddw %%mm4, %%mm2\n\t"
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"movq %%mm1, %%mm4\n\t"
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"punpckhbw %%mm7, %%mm4\n\t"
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"pmullw %0, %%mm4\n\t"
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"paddw %%mm4, %%mm3\n\t"
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: : "m" (DD));
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asm volatile( |
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/* dst[0..7] = pack(([mm2,mm3] + 32) >> 6) */
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"paddw %1, %%mm2\n\t"
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"paddw %1, %%mm3\n\t"
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"psrlw $6, %%mm2\n\t"
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"psrlw $6, %%mm3\n\t"
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"packuswb %%mm3, %%mm2\n\t"
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H264_CHROMA_OP(%0, %%mm2)
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"movq %%mm2, %0\n\t"
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: "=m" (dst[0]) : "m" (ff_pw_32)); |
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dst+= stride; |
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} |
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} |
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|
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static void H264_CHROMA_MC4_TMPL(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y) |
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{
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uint64_t AA __align8; |
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uint64_t DD __align8; |
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int i;
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/* no special case for mv=(0,0) in 4x*, since it's much less common than in 8x*.
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* could still save a few cycles, but maybe not worth the complexity. */
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assert(x<8 && y<8 && x>=0 && y>=0); |
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asm volatile("movd %2, %%mm4\n\t" |
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"movd %3, %%mm6\n\t"
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"punpcklwd %%mm4, %%mm4\n\t"
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"punpcklwd %%mm6, %%mm6\n\t"
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"punpckldq %%mm4, %%mm4\n\t" /* mm4 = x words */ |
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"punpckldq %%mm6, %%mm6\n\t" /* mm6 = y words */ |
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"movq %%mm4, %%mm5\n\t"
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"pmullw %%mm6, %%mm4\n\t" /* mm4 = x * y */ |
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"psllw $3, %%mm5\n\t"
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"psllw $3, %%mm6\n\t"
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"movq %%mm5, %%mm7\n\t"
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"paddw %%mm6, %%mm7\n\t"
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"movq %%mm4, %1\n\t" /* DD = x * y */ |
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"psubw %%mm4, %%mm5\n\t" /* mm5 = B = 8x - xy */ |
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"psubw %%mm4, %%mm6\n\t" /* mm6 = C = 8y - xy */ |
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"paddw %4, %%mm4\n\t"
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"psubw %%mm7, %%mm4\n\t" /* mm4 = A = xy - (8x+8y) + 64 */ |
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"pxor %%mm7, %%mm7\n\t"
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"movq %%mm4, %0\n\t"
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: "=m" (AA), "=m" (DD) : "rm" (x), "rm" (y), "m" (ff_pw_64)); |
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asm volatile( |
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/* mm0 = src[0..3], mm1 = src[1..4] */
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"movd %0, %%mm0\n\t"
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"movd %1, %%mm1\n\t"
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"punpcklbw %%mm7, %%mm0\n\t"
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"punpcklbw %%mm7, %%mm1\n\t"
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: : "m" (src[0]), "m" (src[1])); |
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for(i=0; i<h; i++) { |
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asm volatile( |
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/* mm2 = A * src[0..3] + B * src[1..4] */
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"movq %%mm0, %%mm2\n\t"
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"pmullw %0, %%mm2\n\t"
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"pmullw %%mm5, %%mm1\n\t"
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"paddw %%mm1, %%mm2\n\t"
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: : "m" (AA));
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|
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src += stride; |
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asm volatile( |
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/* mm0 = src[0..3], mm1 = src[1..4] */
|
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"movd %0, %%mm0\n\t"
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"movd %1, %%mm1\n\t"
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"punpcklbw %%mm7, %%mm0\n\t"
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"punpcklbw %%mm7, %%mm1\n\t"
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: : "m" (src[0]), "m" (src[1])); |
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asm volatile( |
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/* mm2 += C * src[0..3] + D * src[1..4] */
|
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"movq %%mm0, %%mm3\n\t"
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"movq %%mm1, %%mm4\n\t"
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"pmullw %%mm6, %%mm3\n\t"
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"pmullw %0, %%mm4\n\t"
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"paddw %%mm3, %%mm2\n\t"
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"paddw %%mm4, %%mm2\n\t"
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: : "m" (DD));
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|
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asm volatile( |
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/* dst[0..3] = pack((mm2 + 32) >> 6) */
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"paddw %1, %%mm2\n\t"
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"psrlw $6, %%mm2\n\t"
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"packuswb %%mm7, %%mm2\n\t"
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H264_CHROMA_OP4(%0, %%mm2, %%mm3)
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"movd %%mm2, %0\n\t"
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: "=m" (dst[0]) : "m" (ff_pw_32)); |
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dst += stride; |
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} |
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} |