FFmpeg
hpeldsp_init_loongarch.c
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1 /*
2  * Copyright (c) 2021 Loongson Technology Corporation Limited
3  * Contributed by Shiyou Yin <yinshiyou-hf@loongson.cn>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "libavutil/loongarch/cpu.h"
23 #include "libavcodec/hpeldsp.h"
24 #include "libavcodec/loongarch/hpeldsp_lasx.h"
25 
26 void ff_hpeldsp_init_loongarch(HpelDSPContext *c, int flags)
27 {
28  int cpu_flags = av_get_cpu_flags();
29 
30  if (have_lasx(cpu_flags)) {
31  c->put_pixels_tab[0][0] = ff_put_pixels16_8_lsx;
32  c->put_pixels_tab[0][1] = ff_put_pixels16_x2_8_lasx;
33  c->put_pixels_tab[0][2] = ff_put_pixels16_y2_8_lasx;
34  c->put_pixels_tab[0][3] = ff_put_pixels16_xy2_8_lasx;
35 
36  c->put_pixels_tab[1][0] = ff_put_pixels8_8_lasx;
37  c->put_pixels_tab[1][1] = ff_put_pixels8_x2_8_lasx;
38  c->put_pixels_tab[1][2] = ff_put_pixels8_y2_8_lasx;
39  c->put_pixels_tab[1][3] = ff_put_pixels8_xy2_8_lasx;
40  c->put_no_rnd_pixels_tab[0][0] = ff_put_pixels16_8_lsx;
41  c->put_no_rnd_pixels_tab[0][1] = ff_put_no_rnd_pixels16_x2_8_lasx;
42  c->put_no_rnd_pixels_tab[0][2] = ff_put_no_rnd_pixels16_y2_8_lasx;
43  c->put_no_rnd_pixels_tab[0][3] = ff_put_no_rnd_pixels16_xy2_8_lasx;
44 
45  c->put_no_rnd_pixels_tab[1][0] = ff_put_pixels8_8_lasx;
46  c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_8_lasx;
47  c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_8_lasx;
48  c->put_no_rnd_pixels_tab[1][3] = ff_put_no_rnd_pixels8_xy2_8_lasx;
49  }
50 }
ff_put_no_rnd_pixels16_xy2_8_lasx
void ff_put_no_rnd_pixels16_xy2_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:858
have_lasx
#define have_lasx(flags)
Definition: cpu.h:29
ff_put_no_rnd_pixels16_y2_8_lasx
void ff_put_no_rnd_pixels16_y2_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:602
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:103
ff_put_pixels16_8_lsx
void ff_put_pixels16_8_lsx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:195
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:52
ff_put_pixels16_y2_8_lasx
void ff_put_pixels16_y2_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:273
ff_put_pixels8_x2_8_lasx
void ff_put_pixels8_x2_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:252
ff_put_no_rnd_pixels8_x2_8_lasx
void ff_put_no_rnd_pixels8_x2_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:947
ff_put_no_rnd_pixels8_xy2_8_lasx
void ff_put_no_rnd_pixels8_xy2_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:1134
ff_put_pixels16_x2_8_lasx
void ff_put_pixels16_x2_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:266
ff_hpeldsp_init_loongarch
void ff_hpeldsp_init_loongarch(HpelDSPContext *c, int flags)
Definition: hpeldsp_init_loongarch.c:26
ff_put_pixels8_xy2_8_lasx
void ff_put_pixels8_xy2_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:1283
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
HpelDSPContext
Half-pel DSP context.
Definition: hpeldsp.h:45
ff_put_no_rnd_pixels8_y2_8_lasx
void ff_put_no_rnd_pixels8_y2_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:1022
ff_put_no_rnd_pixels16_x2_8_lasx
void ff_put_no_rnd_pixels16_x2_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:448
hpeldsp_lasx.h
ff_put_pixels8_8_lasx
void ff_put_pixels8_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:133
ff_put_pixels16_xy2_8_lasx
void ff_put_pixels16_xy2_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:1231
hpeldsp.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
ff_put_pixels8_y2_8_lasx
void ff_put_pixels8_y2_8_lasx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp_lasx.c:259
cpu.h
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