FFmpeg
idctdsp_lasx.c
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1 /*
2  * Copyright (c) 2021 Loongson Technology Corporation Limited
3  * Contributed by Hao Chen <chenhao@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 "idctdsp_loongarch.h"
23 #include "libavutil/loongarch/loongson_intrinsics.h"
24 
25 void ff_put_pixels_clamped_lasx(const int16_t *block,
26  uint8_t *restrict pixels,
27  ptrdiff_t stride)
28 {
29  __m256i b0, b1, b2, b3;
30  __m256i temp0, temp1;
31  ptrdiff_t stride_2x = stride << 1;
32  ptrdiff_t stride_4x = stride << 2;
33  ptrdiff_t stride_3x = stride_2x + stride;
34 
35  DUP4_ARG2(__lasx_xvld, block, 0, block, 32, block, 64, block, 96,
36  b0, b1, b2, b3);
37  DUP4_ARG1(__lasx_xvclip255_h, b0, b1, b2, b3, b0, b1, b2, b3);
38  DUP2_ARG2(__lasx_xvpickev_b, b1, b0, b3, b2, temp0, temp1);
39  __lasx_xvstelm_d(temp0, pixels, 0, 0);
40  __lasx_xvstelm_d(temp0, pixels + stride, 0, 2);
41  __lasx_xvstelm_d(temp0, pixels + stride_2x, 0, 1);
42  __lasx_xvstelm_d(temp0, pixels + stride_3x, 0, 3);
43  pixels += stride_4x;
44  __lasx_xvstelm_d(temp1, pixels, 0, 0);
45  __lasx_xvstelm_d(temp1, pixels + stride, 0, 2);
46  __lasx_xvstelm_d(temp1, pixels + stride_2x, 0, 1);
47  __lasx_xvstelm_d(temp1, pixels + stride_3x, 0, 3);
48 }
49 
50 void ff_put_signed_pixels_clamped_lasx(const int16_t *block,
51  uint8_t *restrict pixels,
52  ptrdiff_t stride)
53 {
54  __m256i b0, b1, b2, b3;
55  __m256i temp0, temp1;
56  __m256i const_128 = {0x0080008000800080, 0x0080008000800080,
57  0x0080008000800080, 0x0080008000800080};
58  ptrdiff_t stride_2x = stride << 1;
59  ptrdiff_t stride_4x = stride << 2;
60  ptrdiff_t stride_3x = stride_2x + stride;
61 
62  DUP4_ARG2(__lasx_xvld, block, 0, block, 32, block, 64, block, 96,
63  b0, b1, b2, b3);
64  DUP4_ARG2(__lasx_xvadd_h, b0, const_128, b1, const_128, b2, const_128,
65  b3, const_128, b0, b1, b2, b3);
66  DUP4_ARG1(__lasx_xvclip255_h, b0, b1, b2, b3, b0, b1, b2, b3);
67  DUP2_ARG2(__lasx_xvpickev_b, b1, b0, b3, b2, temp0, temp1);
68  __lasx_xvstelm_d(temp0, pixels, 0, 0);
69  __lasx_xvstelm_d(temp0, pixels + stride, 0, 2);
70  __lasx_xvstelm_d(temp0, pixels + stride_2x, 0, 1);
71  __lasx_xvstelm_d(temp0, pixels + stride_3x, 0, 3);
72  pixels += stride_4x;
73  __lasx_xvstelm_d(temp1, pixels, 0, 0);
74  __lasx_xvstelm_d(temp1, pixels + stride, 0, 2);
75  __lasx_xvstelm_d(temp1, pixels + stride_2x, 0, 1);
76  __lasx_xvstelm_d(temp1, pixels + stride_3x, 0, 3);
77 }
78 
79 void ff_add_pixels_clamped_lasx(const int16_t *block,
80  uint8_t *restrict pixels,
81  ptrdiff_t stride)
82 {
83  __m256i b0, b1, b2, b3;
84  __m256i p0, p1, p2, p3, p4, p5, p6, p7;
85  __m256i temp0, temp1, temp2, temp3;
86  uint8_t *pix = pixels;
87  ptrdiff_t stride_2x = stride << 1;
88  ptrdiff_t stride_4x = stride << 2;
89  ptrdiff_t stride_3x = stride_2x + stride;
90 
91  DUP4_ARG2(__lasx_xvld, block, 0, block, 32, block, 64, block, 96,
92  b0, b1, b2, b3);
93  p0 = __lasx_xvldrepl_d(pix, 0);
94  pix += stride;
95  p1 = __lasx_xvldrepl_d(pix, 0);
96  pix += stride;
97  p2 = __lasx_xvldrepl_d(pix, 0);
98  pix += stride;
99  p3 = __lasx_xvldrepl_d(pix, 0);
100  pix += stride;
101  p4 = __lasx_xvldrepl_d(pix, 0);
102  pix += stride;
103  p5 = __lasx_xvldrepl_d(pix, 0);
104  pix += stride;
105  p6 = __lasx_xvldrepl_d(pix, 0);
106  pix += stride;
107  p7 = __lasx_xvldrepl_d(pix, 0);
108  DUP4_ARG3(__lasx_xvpermi_q, p1, p0, 0x20, p3, p2, 0x20, p5, p4, 0x20,
109  p7, p6, 0x20, temp0, temp1, temp2, temp3);
110  DUP4_ARG2(__lasx_xvaddw_h_h_bu, b0, temp0, b1, temp1, b2, temp2, b3, temp3,
111  temp0, temp1, temp2, temp3);
112  DUP4_ARG1(__lasx_xvclip255_h, temp0, temp1, temp2, temp3,
113  temp0, temp1, temp2, temp3);
114  DUP2_ARG2(__lasx_xvpickev_b, temp1, temp0, temp3, temp2, temp0, temp1);
115  __lasx_xvstelm_d(temp0, pixels, 0, 0);
116  __lasx_xvstelm_d(temp0, pixels + stride, 0, 2);
117  __lasx_xvstelm_d(temp0, pixels + stride_2x, 0, 1);
118  __lasx_xvstelm_d(temp0, pixels + stride_3x, 0, 3);
119  pixels += stride_4x;
120  __lasx_xvstelm_d(temp1, pixels, 0, 0);
121  __lasx_xvstelm_d(temp1, pixels + stride, 0, 2);
122  __lasx_xvstelm_d(temp1, pixels + stride_2x, 0, 1);
123  __lasx_xvstelm_d(temp1, pixels + stride_3x, 0, 3);
124 }
idctdsp_loongarch.h
DUP2_ARG2
#define DUP2_ARG2(_INS, _IN0, _IN1, _IN2, _IN3, _OUT0, _OUT1)
Definition: loongson_intrinsics.h:58
b1
static double b1(void *priv, double x, double y)
Definition: vf_xfade.c:2035
DUP4_ARG2
#define DUP4_ARG2(_INS, _IN0, _IN1, _IN2, _IN3, _IN4, _IN5, _IN6, _IN7, _OUT0, _OUT1, _OUT2, _OUT3)
Definition: loongson_intrinsics.h:76
b3
static double b3(void *priv, double x, double y)
Definition: vf_xfade.c:2037
ff_add_pixels_clamped_lasx
void ff_add_pixels_clamped_lasx(const int16_t *block, uint8_t *restrict pixels, ptrdiff_t stride)
Definition: idctdsp_lasx.c:79
DUP4_ARG1
#define DUP4_ARG1(_INS, _IN0, _IN1, _IN2, _IN3, _OUT0, _OUT1, _OUT2, _OUT3)
Definition: loongson_intrinsics.h:70
ff_put_pixels_clamped_lasx
void ff_put_pixels_clamped_lasx(const int16_t *block, uint8_t *restrict pixels, ptrdiff_t stride)
Definition: idctdsp_lasx.c:25
b2
static double b2(void *priv, double x, double y)
Definition: vf_xfade.c:2036
ff_put_signed_pixels_clamped_lasx
void ff_put_signed_pixels_clamped_lasx(const int16_t *block, uint8_t *restrict pixels, ptrdiff_t stride)
Definition: idctdsp_lasx.c:50
stride
#define stride
Definition: h264pred_template.c:537
loongson_intrinsics.h
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
b0
static double b0(void *priv, double x, double y)
Definition: vf_xfade.c:2034
DUP4_ARG3
#define DUP4_ARG3(_INS, _IN0, _IN1, _IN2, _IN3, _IN4, _IN5, _IN6, _IN7, _IN8, _IN9, _IN10, _IN11, _OUT0, _OUT1, _OUT2, _OUT3)
Definition: loongson_intrinsics.h:83
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