1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
/*
* Copyright (c) 2018, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <tmmintrin.h>
#include "config/aom_dsp_rtcd.h"
#include "aom_dsp/aom_filter.h"
#include "aom_dsp/x86/convolve_sse2.h"
void av1_dist_wtd_convolve_2d_ssse3(
const uint8_t *src, int src_stride, uint8_t *dst0, int dst_stride0, int w,
int h, const InterpFilterParams *filter_params_x,
const InterpFilterParams *filter_params_y, const int subpel_x_qn,
const int subpel_y_qn, ConvolveParams *conv_params) {
CONV_BUF_TYPE *dst = conv_params->dst;
int dst_stride = conv_params->dst_stride;
const int bd = 8;
DECLARE_ALIGNED(16, int16_t,
im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]);
int im_h = h + filter_params_y->taps - 1;
int im_stride = MAX_SB_SIZE;
int i, j;
const int fo_vert = filter_params_y->taps / 2 - 1;
const int fo_horiz = filter_params_x->taps / 2 - 1;
const int do_average = conv_params->do_average;
const int use_dist_wtd_comp_avg = conv_params->use_dist_wtd_comp_avg;
const uint8_t *const src_ptr = src - fo_vert * src_stride - fo_horiz;
const __m128i zero = _mm_setzero_si128();
const int w0 = conv_params->fwd_offset;
const int w1 = conv_params->bck_offset;
const __m128i wt0 = _mm_set1_epi16(w0);
const __m128i wt1 = _mm_set1_epi16(w1);
const __m128i wt = _mm_unpacklo_epi16(wt0, wt1);
const int offset_0 =
bd + 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
const int offset = (1 << offset_0) + (1 << (offset_0 - 1));
const __m128i offset_const = _mm_set1_epi16(offset);
const int rounding_shift =
2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
const __m128i rounding_const = _mm_set1_epi16((1 << rounding_shift) >> 1);
/* Horizontal filter */
{
const int16_t *x_filter = av1_get_interp_filter_subpel_kernel(
filter_params_x, subpel_x_qn & SUBPEL_MASK);
const __m128i coeffs_x = _mm_loadu_si128((__m128i *)x_filter);
// coeffs 0 1 0 1 2 3 2 3
const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_x, coeffs_x);
// coeffs 4 5 4 5 6 7 6 7
const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_x, coeffs_x);
// coeffs 0 1 0 1 0 1 0 1
const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0);
// coeffs 2 3 2 3 2 3 2 3
const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0);
// coeffs 4 5 4 5 4 5 4 5
const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1);
// coeffs 6 7 6 7 6 7 6 7
const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1);
const __m128i round_const = _mm_set1_epi32(
((1 << conv_params->round_0) >> 1) + (1 << (bd + FILTER_BITS - 1)));
const __m128i round_shift = _mm_cvtsi32_si128(conv_params->round_0);
for (i = 0; i < im_h; ++i) {
for (j = 0; j < w; j += 8) {
const __m128i data =
_mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + j]);
const __m128i src_lo = _mm_unpacklo_epi8(data, zero);
const __m128i src_hi = _mm_unpackhi_epi8(data, zero);
// Filter even-index pixels
const __m128i res_0 = _mm_madd_epi16(src_lo, coeff_01);
const __m128i src_2 = _mm_alignr_epi8(src_hi, src_lo, 4);
const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23);
const __m128i src_4 = _mm_alignr_epi8(src_hi, src_lo, 8);
const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45);
const __m128i src_6 = _mm_alignr_epi8(src_hi, src_lo, 12);
const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67);
__m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_4),
_mm_add_epi32(res_2, res_6));
res_even =
_mm_sra_epi32(_mm_add_epi32(res_even, round_const), round_shift);
// Filter odd-index pixels
const __m128i src_1 = _mm_alignr_epi8(src_hi, src_lo, 2);
const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01);
const __m128i src_3 = _mm_alignr_epi8(src_hi, src_lo, 6);
const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23);
const __m128i src_5 = _mm_alignr_epi8(src_hi, src_lo, 10);
const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45);
const __m128i src_7 = _mm_alignr_epi8(src_hi, src_lo, 14);
const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67);
__m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_5),
_mm_add_epi32(res_3, res_7));
res_odd =
_mm_sra_epi32(_mm_add_epi32(res_odd, round_const), round_shift);
// Pack in the column order 0, 2, 4, 6, 1, 3, 5, 7
__m128i res = _mm_packs_epi32(res_even, res_odd);
_mm_store_si128((__m128i *)&im_block[i * im_stride + j], res);
}
}
}
/* Vertical filter */
{
const int16_t *y_filter = av1_get_interp_filter_subpel_kernel(
filter_params_y, subpel_y_qn & SUBPEL_MASK);
const __m128i coeffs_y = _mm_loadu_si128((__m128i *)y_filter);
// coeffs 0 1 0 1 2 3 2 3
const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_y, coeffs_y);
// coeffs 4 5 4 5 6 7 6 7
const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_y, coeffs_y);
// coeffs 0 1 0 1 0 1 0 1
const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0);
// coeffs 2 3 2 3 2 3 2 3
const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0);
// coeffs 4 5 4 5 4 5 4 5
const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1);
// coeffs 6 7 6 7 6 7 6 7
const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1);
const __m128i round_const = _mm_set1_epi32(
((1 << conv_params->round_1) >> 1) -
(1 << (bd + 2 * FILTER_BITS - conv_params->round_0 - 1)));
const __m128i round_shift = _mm_cvtsi32_si128(conv_params->round_1);
for (i = 0; i < h; ++i) {
for (j = 0; j < w; j += 8) {
// Filter even-index pixels
const int16_t *data = &im_block[i * im_stride + j];
const __m128i src_0 =
_mm_unpacklo_epi16(*(__m128i *)(data + 0 * im_stride),
*(__m128i *)(data + 1 * im_stride));
const __m128i src_2 =
_mm_unpacklo_epi16(*(__m128i *)(data + 2 * im_stride),
*(__m128i *)(data + 3 * im_stride));
const __m128i src_4 =
_mm_unpacklo_epi16(*(__m128i *)(data + 4 * im_stride),
*(__m128i *)(data + 5 * im_stride));
const __m128i src_6 =
_mm_unpacklo_epi16(*(__m128i *)(data + 6 * im_stride),
*(__m128i *)(data + 7 * im_stride));
const __m128i res_0 = _mm_madd_epi16(src_0, coeff_01);
const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23);
const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45);
const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67);
const __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_2),
_mm_add_epi32(res_4, res_6));
// Filter odd-index pixels
const __m128i src_1 =
_mm_unpackhi_epi16(*(__m128i *)(data + 0 * im_stride),
*(__m128i *)(data + 1 * im_stride));
const __m128i src_3 =
_mm_unpackhi_epi16(*(__m128i *)(data + 2 * im_stride),
*(__m128i *)(data + 3 * im_stride));
const __m128i src_5 =
_mm_unpackhi_epi16(*(__m128i *)(data + 4 * im_stride),
*(__m128i *)(data + 5 * im_stride));
const __m128i src_7 =
_mm_unpackhi_epi16(*(__m128i *)(data + 6 * im_stride),
*(__m128i *)(data + 7 * im_stride));
const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01);
const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23);
const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45);
const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67);
const __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_3),
_mm_add_epi32(res_5, res_7));
// Rearrange pixels back into the order 0 ... 7
const __m128i res_lo = _mm_unpacklo_epi32(res_even, res_odd);
const __m128i res_hi = _mm_unpackhi_epi32(res_even, res_odd);
const __m128i res_lo_round =
_mm_sra_epi32(_mm_add_epi32(res_lo, round_const), round_shift);
const __m128i res_hi_round =
_mm_sra_epi32(_mm_add_epi32(res_hi, round_const), round_shift);
const __m128i res_16b = _mm_packs_epi32(res_lo_round, res_hi_round);
const __m128i res_unsigned = _mm_add_epi16(res_16b, offset_const);
// Accumulate values into the destination buffer
if (do_average) {
const __m128i data_ref_0 =
_mm_loadu_si128((__m128i *)(&dst[i * dst_stride + j]));
const __m128i comp_avg_res =
comp_avg(&data_ref_0, &res_unsigned, &wt, use_dist_wtd_comp_avg);
const __m128i round_result = convolve_rounding(
&comp_avg_res, &offset_const, &rounding_const, rounding_shift);
const __m128i res_8 = _mm_packus_epi16(round_result, round_result);
if (w > 4)
_mm_storel_epi64((__m128i *)(&dst0[i * dst_stride0 + j]), res_8);
else
*(uint32_t *)(&dst0[i * dst_stride0 + j]) =
_mm_cvtsi128_si32(res_8);
} else {
_mm_store_si128((__m128i *)(&dst[i * dst_stride + j]), res_unsigned);
}
}
}
}
}
|
