FFmpeg
input_lasx.c
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1 /*
2  * Copyright (C) 2022 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 "swscale_loongarch.h"
23 #include "libavutil/loongarch/loongson_intrinsics.h"
24 
25 void planar_rgb_to_uv_lasx(uint8_t *_dstU, uint8_t *_dstV, const uint8_t *src[4],
26  int width, int32_t *rgb2yuv, void *opq)
27 {
28  int i;
29  uint16_t *dstU = (uint16_t *)_dstU;
30  uint16_t *dstV = (uint16_t *)_dstV;
31  int set = 0x4001 << (RGB2YUV_SHIFT - 7);
32  int len = width - 15;
33  int32_t tem_ru = rgb2yuv[RU_IDX], tem_gu = rgb2yuv[GU_IDX];
34  int32_t tem_bu = rgb2yuv[BU_IDX], tem_rv = rgb2yuv[RV_IDX];
35  int32_t tem_gv = rgb2yuv[GV_IDX], tem_bv = rgb2yuv[BV_IDX];
36  int shift = RGB2YUV_SHIFT - 6;
37  const uint8_t *src0 = src[0], *src1 = src[1], *src2 = src[2];
38  __m256i ru, gu, bu, rv, gv, bv;
39  __m256i mask = {0x0D0C090805040100, 0x1D1C191815141110,
40  0x0D0C090805040100, 0x1D1C191815141110};
41  __m256i temp = __lasx_xvreplgr2vr_w(set);
42  __m256i sra = __lasx_xvreplgr2vr_w(shift);
43 
44  ru = __lasx_xvreplgr2vr_w(tem_ru);
45  gu = __lasx_xvreplgr2vr_w(tem_gu);
46  bu = __lasx_xvreplgr2vr_w(tem_bu);
47  rv = __lasx_xvreplgr2vr_w(tem_rv);
48  gv = __lasx_xvreplgr2vr_w(tem_gv);
49  bv = __lasx_xvreplgr2vr_w(tem_bv);
50  for (i = 0; i < len; i += 16) {
51  __m256i _g, _b, _r;
52  __m256i g_l, g_h, b_l, b_h, r_l, r_h;
53  __m256i v_l, v_h, u_l, u_h, u_lh, v_lh;
54 
55  _g = __lasx_xvldx(src0, i);
56  _b = __lasx_xvldx(src1, i);
57  _r = __lasx_xvldx(src2, i);
58  g_l = __lasx_vext2xv_wu_bu(_g);
59  b_l = __lasx_vext2xv_wu_bu(_b);
60  r_l = __lasx_vext2xv_wu_bu(_r);
61  _g = __lasx_xvpermi_d(_g, 0x01);
62  _b = __lasx_xvpermi_d(_b, 0x01);
63  _r = __lasx_xvpermi_d(_r, 0x01);
64  g_h = __lasx_vext2xv_wu_bu(_g);
65  b_h = __lasx_vext2xv_wu_bu(_b);
66  r_h = __lasx_vext2xv_wu_bu(_r);
67  u_l = __lasx_xvmadd_w(temp, ru, r_l);
68  u_h = __lasx_xvmadd_w(temp, ru, r_h);
69  v_l = __lasx_xvmadd_w(temp, rv, r_l);
70  v_h = __lasx_xvmadd_w(temp, rv, r_h);
71  u_l = __lasx_xvmadd_w(u_l, gu, g_l);
72  u_l = __lasx_xvmadd_w(u_l, bu, b_l);
73  u_h = __lasx_xvmadd_w(u_h, gu, g_h);
74  u_h = __lasx_xvmadd_w(u_h, bu, b_h);
75  v_l = __lasx_xvmadd_w(v_l, gv, g_l);
76  v_l = __lasx_xvmadd_w(v_l, bv, b_l);
77  v_h = __lasx_xvmadd_w(v_h, gv, g_h);
78  v_h = __lasx_xvmadd_w(v_h, bv, b_h);
79  u_l = __lasx_xvsra_w(u_l, sra);
80  u_h = __lasx_xvsra_w(u_h, sra);
81  v_l = __lasx_xvsra_w(v_l, sra);
82  v_h = __lasx_xvsra_w(v_h, sra);
83  u_lh = __lasx_xvshuf_b(u_h, u_l, mask);
84  v_lh = __lasx_xvshuf_b(v_h, v_l, mask);
85  u_lh = __lasx_xvpermi_d(u_lh, 0xD8);
86  v_lh = __lasx_xvpermi_d(v_lh, 0xD8);
87  __lasx_xvst(u_lh, (dstU + i), 0);
88  __lasx_xvst(v_lh, (dstV + i), 0);
89  }
90  if (width - i >= 8) {
91  __m256i _g, _b, _r;
92  __m256i g_l, b_l, r_l;
93  __m256i v_l, u_l, u, v;
94 
95  _g = __lasx_xvldrepl_d((src0 + i), 0);
96  _b = __lasx_xvldrepl_d((src1 + i), 0);
97  _r = __lasx_xvldrepl_d((src2 + i), 0);
98  g_l = __lasx_vext2xv_wu_bu(_g);
99  b_l = __lasx_vext2xv_wu_bu(_b);
100  r_l = __lasx_vext2xv_wu_bu(_r);
101  u_l = __lasx_xvmadd_w(temp, ru, r_l);
102  v_l = __lasx_xvmadd_w(temp, rv, r_l);
103  u_l = __lasx_xvmadd_w(u_l, gu, g_l);
104  u_l = __lasx_xvmadd_w(u_l, bu, b_l);
105  v_l = __lasx_xvmadd_w(v_l, gv, g_l);
106  v_l = __lasx_xvmadd_w(v_l, bv, b_l);
107  u_l = __lasx_xvsra_w(u_l, sra);
108  v_l = __lasx_xvsra_w(v_l, sra);
109  u = __lasx_xvshuf_b(u_l, u_l, mask);
110  v = __lasx_xvshuf_b(v_l, v_l, mask);
111  __lasx_xvstelm_d(u, (dstU + i), 0, 0);
112  __lasx_xvstelm_d(u, (dstU + i), 8, 2);
113  __lasx_xvstelm_d(v, (dstV + i), 0, 0);
114  __lasx_xvstelm_d(v, (dstV + i), 8, 2);
115  i += 8;
116  }
117  for (; i < width; i++) {
118  int g = src[0][i];
119  int b = src[1][i];
120  int r = src[2][i];
121 
122  dstU[i] = (tem_ru * r + tem_gu * g + tem_bu * b + set) >> shift;
123  dstV[i] = (tem_rv * r + tem_gv * g + tem_bv * b + set) >> shift;
124  }
125 }
126 
127 void planar_rgb_to_y_lasx(uint8_t *_dst, const uint8_t *src[4], int width,
128  int32_t *rgb2yuv, void *opq)
129 {
130  int i;
131  int shift = (RGB2YUV_SHIFT - 6);
132  int set = 0x801 << (RGB2YUV_SHIFT - 7);
133  int len = width - 15;
134  uint16_t *dst = (uint16_t *)_dst;
135  int32_t tem_ry = rgb2yuv[RY_IDX], tem_gy = rgb2yuv[GY_IDX];
136  int32_t tem_by = rgb2yuv[BY_IDX];
137  const uint8_t *src0 = src[0], *src1 = src[1], *src2 = src[2];
138  __m256i mask = {0x0D0C090805040100, 0x1D1C191815141110,
139  0x0D0C090805040100, 0x1D1C191815141110};
140  __m256i temp = __lasx_xvreplgr2vr_w(set);
141  __m256i sra = __lasx_xvreplgr2vr_w(shift);
142  __m256i ry = __lasx_xvreplgr2vr_w(tem_ry);
143  __m256i gy = __lasx_xvreplgr2vr_w(tem_gy);
144  __m256i by = __lasx_xvreplgr2vr_w(tem_by);
145 
146  for (i = 0; i < len; i += 16) {
147  __m256i _g, _b, _r;
148  __m256i g_l, g_h, b_l, b_h, r_l, r_h;
149  __m256i y_l, y_h, y_lh;
150 
151  _g = __lasx_xvldx(src0, i);
152  _b = __lasx_xvldx(src1, i);
153  _r = __lasx_xvldx(src2, i);
154  g_l = __lasx_vext2xv_wu_bu(_g);
155  b_l = __lasx_vext2xv_wu_bu(_b);
156  r_l = __lasx_vext2xv_wu_bu(_r);
157  _g = __lasx_xvpermi_d(_g, 0x01);
158  _b = __lasx_xvpermi_d(_b, 0x01);
159  _r = __lasx_xvpermi_d(_r, 0x01);
160  g_h = __lasx_vext2xv_wu_bu(_g);
161  b_h = __lasx_vext2xv_wu_bu(_b);
162  r_h = __lasx_vext2xv_wu_bu(_r);
163  y_l = __lasx_xvmadd_w(temp, ry, r_l);
164  y_h = __lasx_xvmadd_w(temp, ry, r_h);
165  y_l = __lasx_xvmadd_w(y_l, gy, g_l);
166  y_l = __lasx_xvmadd_w(y_l, by, b_l);
167  y_h = __lasx_xvmadd_w(y_h, gy, g_h);
168  y_h = __lasx_xvmadd_w(y_h, by, b_h);
169  y_l = __lasx_xvsra_w(y_l, sra);
170  y_h = __lasx_xvsra_w(y_h, sra);
171  y_lh = __lasx_xvshuf_b(y_h, y_l, mask);
172  y_lh = __lasx_xvpermi_d(y_lh, 0xD8);
173  __lasx_xvst(y_lh, (dst + i), 0);
174  }
175  if (width - i >= 8) {
176  __m256i _g, _b, _r;
177  __m256i g_l, b_l, r_l;
178  __m256i y_l, y;
179 
180  _g = __lasx_xvldrepl_d((src0 + i), 0);
181  _b = __lasx_xvldrepl_d((src1 + i), 0);
182  _r = __lasx_xvldrepl_d((src2 + i), 0);
183  g_l = __lasx_vext2xv_wu_bu(_g);
184  b_l = __lasx_vext2xv_wu_bu(_b);
185  r_l = __lasx_vext2xv_wu_bu(_r);
186  y_l = __lasx_xvmadd_w(temp, ry, r_l);
187  y_l = __lasx_xvmadd_w(y_l, gy, g_l);
188  y_l = __lasx_xvmadd_w(y_l, by, b_l);
189  y_l = __lasx_xvsra_w(y_l, sra);
190  y = __lasx_xvshuf_b(y_l, y_l, mask);
191  __lasx_xvstelm_d(y, (dst + i), 0, 0);
192  __lasx_xvstelm_d(y, (dst + i), 8, 2);
193  i += 8;
194  }
195  for (; i < width; i++) {
196  int g = src[0][i];
197  int b = src[1][i];
198  int r = src[2][i];
199 
200  dst[i] = (tem_ry * r + tem_gy * g + tem_by * b + set) >> shift;
201  }
202 }
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#define RU_IDX
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Definition: input.c:41
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Definition: input_lasx.c:25
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Definition: h264pred_template.c:420
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Definition: input_lasx.c:127
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Definition: swscale_internal.h:444
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