| /* |
| * VC3/DNxHD SIMD functions |
| * Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com> |
| * |
| * VC-3 encoder funded by the British Broadcasting Corporation |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavutil/x86_cpu.h" |
| #include "libavcodec/dnxhdenc.h" |
| |
| static void get_pixels_8x4_sym_sse2(DCTELEM *block, const uint8_t *pixels, int line_size) |
| { |
| __asm__ volatile( |
| "pxor %%xmm5, %%xmm5 \n\t" |
| "movq (%0), %%xmm0 \n\t" |
| "add %2, %0 \n\t" |
| "movq (%0), %%xmm1 \n\t" |
| "movq (%0, %2), %%xmm2 \n\t" |
| "movq (%0, %2,2), %%xmm3 \n\t" |
| "punpcklbw %%xmm5, %%xmm0 \n\t" |
| "punpcklbw %%xmm5, %%xmm1 \n\t" |
| "punpcklbw %%xmm5, %%xmm2 \n\t" |
| "punpcklbw %%xmm5, %%xmm3 \n\t" |
| "movdqa %%xmm0, (%1) \n\t" |
| "movdqa %%xmm1, 16(%1) \n\t" |
| "movdqa %%xmm2, 32(%1) \n\t" |
| "movdqa %%xmm3, 48(%1) \n\t" |
| "movdqa %%xmm3 , 64(%1) \n\t" |
| "movdqa %%xmm2 , 80(%1) \n\t" |
| "movdqa %%xmm1 , 96(%1) \n\t" |
| "movdqa %%xmm0, 112(%1) \n\t" |
| : "+r" (pixels) |
| : "r" (block), "r" ((x86_reg)line_size) |
| ); |
| } |
| |
| void ff_dnxhd_init_mmx(DNXHDEncContext *ctx) |
| { |
| if (av_get_cpu_flags() & AV_CPU_FLAG_SSE2) { |
| ctx->get_pixels_8x4_sym = get_pixels_8x4_sym_sse2; |
| } |
| } |