diff options
Diffstat (limited to 'libavcodec/x86/dnxhd_mmx.c')
| -rw-r--r-- | libavcodec/x86/dnxhd_mmx.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/libavcodec/x86/dnxhd_mmx.c b/libavcodec/x86/dnxhd_mmx.c new file mode 100644 index 0000000000..59bcb3929b --- /dev/null +++ b/libavcodec/x86/dnxhd_mmx.c @@ -0,0 +1,58 @@ +/* + * 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 %%xmm7, %%xmm7 \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 %%xmm7, %%xmm0 \n\t" + "punpcklbw %%xmm7, %%xmm1 \n\t" + "punpcklbw %%xmm7, %%xmm2 \n\t" + "punpcklbw %%xmm7, %%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 (mm_flags & FF_MM_SSE2) { + ctx->get_pixels_8x4_sym = get_pixels_8x4_sym_sse2; + } +} |