mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
317 lines
11 KiB
C
317 lines
11 KiB
C
/*
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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 file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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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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DECLARE_ALIGNED_8(uint64_t, AA);
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DECLARE_ALIGNED_8(uint64_t, DD);
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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 || x==0)
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{
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/* 1 dimensional filter only */
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const int dxy = x ? 1 : stride;
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asm volatile(
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"movd %0, %%mm5\n\t"
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"movq %1, %%mm4\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 %%mm4, %%mm6\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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"psrlw $1, %%mm6\n\t" /* mm6 = 4 */
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:: "rm"(x+y), "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, %%mm2\n\t"
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:: "m"(src[0]), "m"(src[dxy]));
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asm volatile(
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/* [mm0,mm1] = A * src[0..7] */
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/* [mm2,mm3] = B * src[1..8] */
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"movq %%mm0, %%mm1\n\t"
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"movq %%mm2, %%mm3\n\t"
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"punpcklbw %%mm7, %%mm0\n\t"
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"punpckhbw %%mm7, %%mm1\n\t"
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"punpcklbw %%mm7, %%mm2\n\t"
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"punpckhbw %%mm7, %%mm3\n\t"
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"pmullw %%mm4, %%mm0\n\t"
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"pmullw %%mm4, %%mm1\n\t"
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"pmullw %%mm5, %%mm2\n\t"
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"pmullw %%mm5, %%mm3\n\t"
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/* dst[0..7] = (A * src[0..7] + B * src[1..8] + 4) >> 3 */
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"paddw %%mm6, %%mm0\n\t"
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"paddw %%mm6, %%mm1\n\t"
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"paddw %%mm2, %%mm0\n\t"
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"paddw %%mm3, %%mm1\n\t"
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"psrlw $3, %%mm0\n\t"
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"psrlw $3, %%mm1\n\t"
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"packuswb %%mm1, %%mm0\n\t"
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H264_CHROMA_OP(%0, %%mm0)
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"movq %%mm0, %0\n\t"
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: "=m" (dst[0]));
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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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/* 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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src += stride;
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asm volatile(
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/* mm2 = A * src[0..3] + B * src[1..4] */
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/* mm3 = A * src[4..7] + B * src[5..8] */
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"movq %%mm0, %%mm2\n\t"
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"movq %%mm1, %%mm3\n\t"
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"punpckhbw %%mm7, %%mm0\n\t"
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"punpcklbw %%mm7, %%mm1\n\t"
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"punpcklbw %%mm7, %%mm2\n\t"
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"punpckhbw %%mm7, %%mm3\n\t"
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"pmullw %0, %%mm0\n\t"
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"pmullw %0, %%mm2\n\t"
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"pmullw %%mm5, %%mm1\n\t"
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"pmullw %%mm5, %%mm3\n\t"
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"paddw %%mm1, %%mm2\n\t"
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"paddw %%mm0, %%mm3\n\t"
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: : "m" (AA));
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asm volatile(
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/* [mm2,mm3] += C * src[0..7] */
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"movq %0, %%mm0\n\t"
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"movq %%mm0, %%mm1\n\t"
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"punpcklbw %%mm7, %%mm0\n\t"
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"punpckhbw %%mm7, %%mm1\n\t"
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"pmullw %%mm6, %%mm0\n\t"
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"pmullw %%mm6, %%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" (src[0]));
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asm volatile(
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/* [mm2,mm3] += D * src[1..8] */
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"movq %1, %%mm1\n\t"
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"movq %%mm1, %%mm0\n\t"
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"movq %%mm1, %%mm4\n\t"
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"punpcklbw %%mm7, %%mm0\n\t"
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"punpckhbw %%mm7, %%mm4\n\t"
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"pmullw %2, %%mm0\n\t"
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"pmullw %2, %%mm4\n\t"
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"paddw %%mm0, %%mm2\n\t"
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"paddw %%mm4, %%mm3\n\t"
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"movq %0, %%mm0\n\t"
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: : "m" (src[0]), "m" (src[1]), "m" (DD));
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asm volatile(
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/* dst[0..7] = ([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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static void H264_CHROMA_MC4_TMPL(uint8_t *dst/*align 4*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
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{
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DECLARE_ALIGNED_8(uint64_t, AA);
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DECLARE_ALIGNED_8(uint64_t, DD);
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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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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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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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}
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#ifdef H264_CHROMA_MC2_TMPL
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static void H264_CHROMA_MC2_TMPL(uint8_t *dst/*align 2*/, uint8_t *src/*align 1*/, long stride, int h, int x, int y)
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{
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int tmp = ((1<<16)-1)*x + 8;
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int CD= tmp*y;
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int AB= (tmp<<3) - CD;
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asm volatile(
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/* mm5 = {A,B,A,B} */
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/* mm6 = {C,D,C,D} */
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"movd %0, %%mm5\n\t"
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"movd %1, %%mm6\n\t"
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"punpckldq %%mm5, %%mm5\n\t"
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"punpckldq %%mm6, %%mm6\n\t"
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"pxor %%mm7, %%mm7\n\t"
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/* mm0 = src[0,1,1,2] */
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"movd %2, %%mm0\n\t"
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"punpcklbw %%mm7, %%mm0\n\t"
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"pshufw $0x94, %%mm0, %%mm0\n\t"
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:: "r"(AB), "r"(CD), "m"(src[0]));
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asm volatile(
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"1:\n\t"
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"add %4, %1\n\t"
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/* mm1 = A * src[0,1] + B * src[1,2] */
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"movq %%mm0, %%mm1\n\t"
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"pmaddwd %%mm5, %%mm1\n\t"
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/* mm0 = src[0,1,1,2] */
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"movd (%1), %%mm0\n\t"
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"punpcklbw %%mm7, %%mm0\n\t"
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"pshufw $0x94, %%mm0, %%mm0\n\t"
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/* mm1 += C * src[0,1] + D * src[1,2] */
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"movq %%mm0, %%mm2\n\t"
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"pmaddwd %%mm6, %%mm2\n\t"
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"paddw %%mm2, %%mm1\n\t"
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/* dst[0,1] = pack((mm1 + 32) >> 6) */
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"paddw %3, %%mm1\n\t"
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"psrlw $6, %%mm1\n\t"
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"packssdw %%mm7, %%mm1\n\t"
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"packuswb %%mm7, %%mm1\n\t"
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/* writes garbage to the right of dst.
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* ok because partitions are processed from left to right. */
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H264_CHROMA_OP4((%0), %%mm1, %%mm3)
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"movd %%mm1, (%0)\n\t"
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"add %4, %0\n\t"
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"sub $1, %2\n\t"
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"jnz 1b\n\t"
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: "+r" (dst), "+r"(src), "+r"(h) : "m" (ff_pw_32), "r"(stride));
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}
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#endif
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