1 /*
2 * SIMD-optimized HuffYUV encoding functions
3 * Copyright (c) 2000, 2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 *
6 * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
7 *
8 * This file is part of FFmpeg.
9 *
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25 #include "libavutil/attributes.h"
26 #include "libavutil/cpu.h"
27 #include "libavutil/pixdesc.h"
28 #include "libavutil/x86/cpu.h"
29 #include "libavcodec/huffyuvencdsp.h"
30
31 void ff_diff_int16_mmx (uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
32 unsigned mask, int w);
33 void ff_diff_int16_sse2(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
34 unsigned mask, int w);
35 void ff_diff_int16_avx2(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
36 unsigned mask, int w);
37 void ff_sub_hfyu_median_pred_int16_mmxext(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
38 unsigned mask, int w, int *left, int *left_top);
39
ff_huffyuvencdsp_init_x86(HuffYUVEncDSPContext * c,AVCodecContext * avctx)40 av_cold void ff_huffyuvencdsp_init_x86(HuffYUVEncDSPContext *c, AVCodecContext *avctx)
41 {
42 av_unused int cpu_flags = av_get_cpu_flags();
43 const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(avctx->pix_fmt);
44
45 if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags)) {
46 c->diff_int16 = ff_diff_int16_mmx;
47 }
48
49 if (EXTERNAL_MMXEXT(cpu_flags) && pix_desc && pix_desc->comp[0].depth<16) {
50 c->sub_hfyu_median_pred_int16 = ff_sub_hfyu_median_pred_int16_mmxext;
51 }
52
53 if (EXTERNAL_SSE2(cpu_flags)) {
54 c->diff_int16 = ff_diff_int16_sse2;
55 }
56
57 if (EXTERNAL_AVX2_FAST(cpu_flags)) {
58 c->diff_int16 = ff_diff_int16_avx2;
59 }
60 }
61