1/* 2 * VC3/DNxHD SIMD functions 3 * Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com> 4 * 5 * VC-3 encoder funded by the British Broadcasting Corporation 6 * 7 * This file is part of FFmpeg. 8 * 9 * FFmpeg is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU Lesser General Public 11 * License as published by the Free Software Foundation; either 12 * version 2.1 of the License, or (at your option) any later version. 13 * 14 * FFmpeg is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * Lesser General Public License for more details. 18 * 19 * You should have received a copy of the GNU Lesser General Public 20 * License along with FFmpeg; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 22 */ 23 24#include "libavutil/x86_cpu.h" 25#include "libavcodec/dnxhdenc.h" 26 27static void get_pixels_8x4_sym_sse2(DCTELEM *block, const uint8_t *pixels, int line_size) 28{ 29 __asm__ volatile( 30 "pxor %%xmm7, %%xmm7 \n\t" 31 "movq (%0), %%xmm0 \n\t" 32 "add %2, %0 \n\t" 33 "movq (%0), %%xmm1 \n\t" 34 "movq (%0, %2), %%xmm2 \n\t" 35 "movq (%0, %2,2), %%xmm3 \n\t" 36 "punpcklbw %%xmm7, %%xmm0 \n\t" 37 "punpcklbw %%xmm7, %%xmm1 \n\t" 38 "punpcklbw %%xmm7, %%xmm2 \n\t" 39 "punpcklbw %%xmm7, %%xmm3 \n\t" 40 "movdqa %%xmm0, (%1) \n\t" 41 "movdqa %%xmm1, 16(%1) \n\t" 42 "movdqa %%xmm2, 32(%1) \n\t" 43 "movdqa %%xmm3, 48(%1) \n\t" 44 "movdqa %%xmm3 , 64(%1) \n\t" 45 "movdqa %%xmm2 , 80(%1) \n\t" 46 "movdqa %%xmm1 , 96(%1) \n\t" 47 "movdqa %%xmm0, 112(%1) \n\t" 48 : "+r" (pixels) 49 : "r" (block), "r" ((x86_reg)line_size) 50 ); 51} 52 53void ff_dnxhd_init_mmx(DNXHDEncContext *ctx) 54{ 55 if (mm_flags & FF_MM_SSE2) { 56 ctx->get_pixels_8x4_sym = get_pixels_8x4_sym_sse2; 57 } 58} 59