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1 /*
2  * Lossless video DSP utils
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include "config.h"
22 #include "../lossless_videodsp.h"
23 #include "libavutil/x86/cpu.h"
24 
25 void ff_add_bytes_sse2(uint8_t *dst, uint8_t *src, ptrdiff_t w);
26 void ff_add_bytes_avx2(uint8_t *dst, uint8_t *src, ptrdiff_t w);
27 
28 void ff_add_median_pred_sse2(uint8_t *dst, const uint8_t *top,
29                              const uint8_t *diff, ptrdiff_t w,
30                              int *left, int *left_top);
31 
32 int  ff_add_left_pred_ssse3(uint8_t *dst, const uint8_t *src,
33                             ptrdiff_t w, int left);
34 int  ff_add_left_pred_unaligned_ssse3(uint8_t *dst, const uint8_t *src,
35                                       ptrdiff_t w, int left);
36 int  ff_add_left_pred_unaligned_avx2(uint8_t *dst, const uint8_t *src,
37                                      ptrdiff_t w, int left);
38 
39 int ff_add_left_pred_int16_ssse3(uint16_t *dst, const uint16_t *src, unsigned mask, ptrdiff_t w, unsigned acc);
40 int ff_add_left_pred_int16_unaligned_ssse3(uint16_t *dst, const uint16_t *src, unsigned mask, ptrdiff_t w, unsigned acc);
41 
42 void ff_add_gradient_pred_ssse3(uint8_t *src, const ptrdiff_t stride, const ptrdiff_t width);
43 void ff_add_gradient_pred_avx2(uint8_t *src, const ptrdiff_t stride, const ptrdiff_t width);
44 
ff_llviddsp_init_x86(LLVidDSPContext * c)45 void ff_llviddsp_init_x86(LLVidDSPContext *c)
46 {
47     int cpu_flags = av_get_cpu_flags();
48 
49     if (EXTERNAL_SSE2(cpu_flags)) {
50         c->add_bytes       = ff_add_bytes_sse2;
51         c->add_median_pred = ff_add_median_pred_sse2;
52     }
53 
54     if (EXTERNAL_SSSE3(cpu_flags)) {
55         c->add_left_pred = ff_add_left_pred_ssse3;
56         c->add_left_pred_int16 = ff_add_left_pred_int16_ssse3;
57         c->add_gradient_pred   = ff_add_gradient_pred_ssse3;
58     }
59 
60     if (EXTERNAL_SSSE3_FAST(cpu_flags)) {
61         c->add_left_pred = ff_add_left_pred_unaligned_ssse3;
62         c->add_left_pred_int16 = ff_add_left_pred_int16_unaligned_ssse3;
63     }
64 
65     if (EXTERNAL_AVX2_FAST(cpu_flags)) {
66         c->add_bytes       = ff_add_bytes_avx2;
67         c->add_left_pred   = ff_add_left_pred_unaligned_avx2;
68         c->add_gradient_pred = ff_add_gradient_pred_avx2;
69     }
70 }
71