1 /*
2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
3 *
4 * This source code is subject to the terms of the BSD 2 Clause License and
5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 * was not distributed with this source code in the LICENSE file, you can
7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8 * Media Patent License 1.0 was not distributed with this source code in the
9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10 */
11
12 #include <assert.h>
13
14 #include "config/aom_dsp_rtcd.h"
15 #include "config/av1_rtcd.h"
16
17 #include "aom_dsp/txfm_common.h"
18 #include "av1/common/enums.h"
19 #include "av1/common/av1_txfm.h"
20 #include "av1/encoder/av1_fwd_txfm1d.h"
21 #include "av1/encoder/av1_fwd_txfm1d_cfg.h"
22
fwd_txfm_type_to_func(TXFM_TYPE txfm_type)23 static INLINE TxfmFunc fwd_txfm_type_to_func(TXFM_TYPE txfm_type) {
24 switch (txfm_type) {
25 case TXFM_TYPE_DCT4: return av1_fdct4_new;
26 case TXFM_TYPE_DCT8: return av1_fdct8_new;
27 case TXFM_TYPE_DCT16: return av1_fdct16_new;
28 case TXFM_TYPE_DCT32: return av1_fdct32_new;
29 case TXFM_TYPE_DCT64: return av1_fdct64_new;
30 case TXFM_TYPE_ADST4: return av1_fadst4_new;
31 case TXFM_TYPE_ADST8: return av1_fadst8_new;
32 case TXFM_TYPE_ADST16: return av1_fadst16_new;
33 case TXFM_TYPE_IDENTITY4: return av1_fidentity4_c;
34 case TXFM_TYPE_IDENTITY8: return av1_fidentity8_c;
35 case TXFM_TYPE_IDENTITY16: return av1_fidentity16_c;
36 case TXFM_TYPE_IDENTITY32: return av1_fidentity32_c;
37 default: assert(0); return NULL;
38 }
39 }
40
av1_gen_fwd_stage_range(int8_t * stage_range_col,int8_t * stage_range_row,const TXFM_2D_FLIP_CFG * cfg,int bd)41 void av1_gen_fwd_stage_range(int8_t *stage_range_col, int8_t *stage_range_row,
42 const TXFM_2D_FLIP_CFG *cfg, int bd) {
43 // Take the shift from the larger dimension in the rectangular case.
44 const int8_t *shift = cfg->shift;
45 // i < MAX_TXFM_STAGE_NUM will mute above array bounds warning
46 for (int i = 0; i < cfg->stage_num_col && i < MAX_TXFM_STAGE_NUM; ++i) {
47 stage_range_col[i] = cfg->stage_range_col[i] + shift[0] + bd + 1;
48 }
49
50 // i < MAX_TXFM_STAGE_NUM will mute above array bounds warning
51 for (int i = 0; i < cfg->stage_num_row && i < MAX_TXFM_STAGE_NUM; ++i) {
52 stage_range_row[i] = cfg->stage_range_row[i] + shift[0] + shift[1] + bd + 1;
53 }
54 }
55
fwd_txfm2d_c(const int16_t * input,int32_t * output,const int stride,const TXFM_2D_FLIP_CFG * cfg,int32_t * buf,int bd)56 static INLINE void fwd_txfm2d_c(const int16_t *input, int32_t *output,
57 const int stride, const TXFM_2D_FLIP_CFG *cfg,
58 int32_t *buf, int bd) {
59 int c, r;
60 // Note when assigning txfm_size_col, we use the txfm_size from the
61 // row configuration and vice versa. This is intentionally done to
62 // accurately perform rectangular transforms. When the transform is
63 // rectangular, the number of columns will be the same as the
64 // txfm_size stored in the row cfg struct. It will make no difference
65 // for square transforms.
66 const int txfm_size_col = tx_size_wide[cfg->tx_size];
67 const int txfm_size_row = tx_size_high[cfg->tx_size];
68 // Take the shift from the larger dimension in the rectangular case.
69 const int8_t *shift = cfg->shift;
70 const int rect_type = get_rect_tx_log_ratio(txfm_size_col, txfm_size_row);
71 int8_t stage_range_col[MAX_TXFM_STAGE_NUM];
72 int8_t stage_range_row[MAX_TXFM_STAGE_NUM];
73 assert(cfg->stage_num_col <= MAX_TXFM_STAGE_NUM);
74 assert(cfg->stage_num_row <= MAX_TXFM_STAGE_NUM);
75 av1_gen_fwd_stage_range(stage_range_col, stage_range_row, cfg, bd);
76
77 const int8_t cos_bit_col = cfg->cos_bit_col;
78 const int8_t cos_bit_row = cfg->cos_bit_row;
79 const TxfmFunc txfm_func_col = fwd_txfm_type_to_func(cfg->txfm_type_col);
80 const TxfmFunc txfm_func_row = fwd_txfm_type_to_func(cfg->txfm_type_row);
81
82 // use output buffer as temp buffer
83 int32_t *temp_in = output;
84 int32_t *temp_out = output + txfm_size_row;
85
86 // Columns
87 for (c = 0; c < txfm_size_col; ++c) {
88 if (cfg->ud_flip == 0) {
89 for (r = 0; r < txfm_size_row; ++r) temp_in[r] = input[r * stride + c];
90 } else {
91 for (r = 0; r < txfm_size_row; ++r)
92 // flip upside down
93 temp_in[r] = input[(txfm_size_row - r - 1) * stride + c];
94 }
95 av1_round_shift_array(temp_in, txfm_size_row, -shift[0]);
96 txfm_func_col(temp_in, temp_out, cos_bit_col, stage_range_col);
97 av1_round_shift_array(temp_out, txfm_size_row, -shift[1]);
98 if (cfg->lr_flip == 0) {
99 for (r = 0; r < txfm_size_row; ++r)
100 buf[r * txfm_size_col + c] = temp_out[r];
101 } else {
102 for (r = 0; r < txfm_size_row; ++r)
103 // flip from left to right
104 buf[r * txfm_size_col + (txfm_size_col - c - 1)] = temp_out[r];
105 }
106 }
107
108 // Rows
109 for (r = 0; r < txfm_size_row; ++r) {
110 txfm_func_row(buf + r * txfm_size_col, output + r * txfm_size_col,
111 cos_bit_row, stage_range_row);
112 av1_round_shift_array(output + r * txfm_size_col, txfm_size_col, -shift[2]);
113 if (abs(rect_type) == 1) {
114 // Multiply everything by Sqrt2 if the transform is rectangular and the
115 // size difference is a factor of 2.
116 for (c = 0; c < txfm_size_col; ++c) {
117 output[r * txfm_size_col + c] = round_shift(
118 (int64_t)output[r * txfm_size_col + c] * NewSqrt2, NewSqrt2Bits);
119 }
120 }
121 }
122 }
123
av1_fwd_txfm2d_4x8_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)124 void av1_fwd_txfm2d_4x8_c(const int16_t *input, int32_t *output, int stride,
125 TX_TYPE tx_type, int bd) {
126 DECLARE_ALIGNED(32, int32_t, txfm_buf[4 * 8]);
127 TXFM_2D_FLIP_CFG cfg;
128 av1_get_fwd_txfm_cfg(tx_type, TX_4X8, &cfg);
129 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
130 }
131
av1_fwd_txfm2d_8x4_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)132 void av1_fwd_txfm2d_8x4_c(const int16_t *input, int32_t *output, int stride,
133 TX_TYPE tx_type, int bd) {
134 int32_t txfm_buf[8 * 4];
135 TXFM_2D_FLIP_CFG cfg;
136 av1_get_fwd_txfm_cfg(tx_type, TX_8X4, &cfg);
137 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
138 }
139
av1_fwd_txfm2d_8x16_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)140 void av1_fwd_txfm2d_8x16_c(const int16_t *input, int32_t *output, int stride,
141 TX_TYPE tx_type, int bd) {
142 DECLARE_ALIGNED(32, int32_t, txfm_buf[8 * 16]);
143 TXFM_2D_FLIP_CFG cfg;
144 av1_get_fwd_txfm_cfg(tx_type, TX_8X16, &cfg);
145 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
146 }
147
av1_fwd_txfm2d_16x8_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)148 void av1_fwd_txfm2d_16x8_c(const int16_t *input, int32_t *output, int stride,
149 TX_TYPE tx_type, int bd) {
150 int32_t txfm_buf[16 * 8];
151 TXFM_2D_FLIP_CFG cfg;
152 av1_get_fwd_txfm_cfg(tx_type, TX_16X8, &cfg);
153 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
154 }
155
av1_fwd_txfm2d_16x32_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)156 void av1_fwd_txfm2d_16x32_c(const int16_t *input, int32_t *output, int stride,
157 TX_TYPE tx_type, int bd) {
158 DECLARE_ALIGNED(32, int32_t, txfm_buf[16 * 32]);
159 TXFM_2D_FLIP_CFG cfg;
160 av1_get_fwd_txfm_cfg(tx_type, TX_16X32, &cfg);
161 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
162 }
163
av1_fwd_txfm2d_32x16_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)164 void av1_fwd_txfm2d_32x16_c(const int16_t *input, int32_t *output, int stride,
165 TX_TYPE tx_type, int bd) {
166 int32_t txfm_buf[32 * 16];
167 TXFM_2D_FLIP_CFG cfg;
168 av1_get_fwd_txfm_cfg(tx_type, TX_32X16, &cfg);
169 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
170 }
171
av1_fwd_txfm2d_4x16_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)172 void av1_fwd_txfm2d_4x16_c(const int16_t *input, int32_t *output, int stride,
173 TX_TYPE tx_type, int bd) {
174 DECLARE_ALIGNED(32, int32_t, txfm_buf[4 * 16]);
175 TXFM_2D_FLIP_CFG cfg;
176 av1_get_fwd_txfm_cfg(tx_type, TX_4X16, &cfg);
177 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
178 }
179
av1_fwd_txfm2d_16x4_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)180 void av1_fwd_txfm2d_16x4_c(const int16_t *input, int32_t *output, int stride,
181 TX_TYPE tx_type, int bd) {
182 int32_t txfm_buf[16 * 4];
183 TXFM_2D_FLIP_CFG cfg;
184 av1_get_fwd_txfm_cfg(tx_type, TX_16X4, &cfg);
185 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
186 }
187
av1_fwd_txfm2d_8x32_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)188 void av1_fwd_txfm2d_8x32_c(const int16_t *input, int32_t *output, int stride,
189 TX_TYPE tx_type, int bd) {
190 DECLARE_ALIGNED(32, int32_t, txfm_buf[32 * 8]);
191 TXFM_2D_FLIP_CFG cfg;
192 av1_get_fwd_txfm_cfg(tx_type, TX_8X32, &cfg);
193 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
194 }
195
av1_fwd_txfm2d_32x8_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)196 void av1_fwd_txfm2d_32x8_c(const int16_t *input, int32_t *output, int stride,
197 TX_TYPE tx_type, int bd) {
198 int32_t txfm_buf[32 * 8];
199 TXFM_2D_FLIP_CFG cfg;
200 av1_get_fwd_txfm_cfg(tx_type, TX_32X8, &cfg);
201 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
202 }
203
av1_fwd_txfm2d_4x4_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)204 void av1_fwd_txfm2d_4x4_c(const int16_t *input, int32_t *output, int stride,
205 TX_TYPE tx_type, int bd) {
206 int32_t txfm_buf[4 * 4];
207 TXFM_2D_FLIP_CFG cfg;
208 av1_get_fwd_txfm_cfg(tx_type, TX_4X4, &cfg);
209 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
210 }
211
av1_fwd_txfm2d_8x8_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)212 void av1_fwd_txfm2d_8x8_c(const int16_t *input, int32_t *output, int stride,
213 TX_TYPE tx_type, int bd) {
214 int32_t txfm_buf[8 * 8];
215 TXFM_2D_FLIP_CFG cfg;
216 av1_get_fwd_txfm_cfg(tx_type, TX_8X8, &cfg);
217 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
218 }
219
av1_fwd_txfm2d_16x16_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)220 void av1_fwd_txfm2d_16x16_c(const int16_t *input, int32_t *output, int stride,
221 TX_TYPE tx_type, int bd) {
222 int32_t txfm_buf[16 * 16];
223 TXFM_2D_FLIP_CFG cfg;
224 av1_get_fwd_txfm_cfg(tx_type, TX_16X16, &cfg);
225 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
226 }
227
av1_fwd_txfm2d_32x32_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)228 void av1_fwd_txfm2d_32x32_c(const int16_t *input, int32_t *output, int stride,
229 TX_TYPE tx_type, int bd) {
230 int32_t txfm_buf[32 * 32];
231 TXFM_2D_FLIP_CFG cfg;
232 av1_get_fwd_txfm_cfg(tx_type, TX_32X32, &cfg);
233 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
234 }
235
av1_fwd_txfm2d_64x64_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)236 void av1_fwd_txfm2d_64x64_c(const int16_t *input, int32_t *output, int stride,
237 TX_TYPE tx_type, int bd) {
238 int32_t txfm_buf[64 * 64];
239 TXFM_2D_FLIP_CFG cfg;
240 av1_get_fwd_txfm_cfg(tx_type, TX_64X64, &cfg);
241 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
242
243 // Zero out top-right 32x32 area.
244 for (int row = 0; row < 32; ++row) {
245 memset(output + row * 64 + 32, 0, 32 * sizeof(*output));
246 }
247 // Zero out the bottom 64x32 area.
248 memset(output + 32 * 64, 0, 32 * 64 * sizeof(*output));
249 // Re-pack non-zero coeffs in the first 32x32 indices.
250 for (int row = 1; row < 32; ++row) {
251 memcpy(output + row * 32, output + row * 64, 32 * sizeof(*output));
252 }
253 }
254
av1_fwd_txfm2d_32x64_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)255 void av1_fwd_txfm2d_32x64_c(const int16_t *input, int32_t *output, int stride,
256 TX_TYPE tx_type, int bd) {
257 DECLARE_ALIGNED(32, int32_t, txfm_buf[32 * 64]);
258 TXFM_2D_FLIP_CFG cfg;
259 av1_get_fwd_txfm_cfg(tx_type, TX_32X64, &cfg);
260 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
261 // Zero out the bottom 32x32 area.
262 memset(output + 32 * 32, 0, 32 * 32 * sizeof(*output));
263 // Note: no repacking needed here.
264 }
265
av1_fwd_txfm2d_64x32_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)266 void av1_fwd_txfm2d_64x32_c(const int16_t *input, int32_t *output, int stride,
267 TX_TYPE tx_type, int bd) {
268 int32_t txfm_buf[64 * 32];
269 TXFM_2D_FLIP_CFG cfg;
270 av1_get_fwd_txfm_cfg(tx_type, TX_64X32, &cfg);
271 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
272
273 // Zero out right 32x32 area.
274 for (int row = 0; row < 32; ++row) {
275 memset(output + row * 64 + 32, 0, 32 * sizeof(*output));
276 }
277 // Re-pack non-zero coeffs in the first 32x32 indices.
278 for (int row = 1; row < 32; ++row) {
279 memcpy(output + row * 32, output + row * 64, 32 * sizeof(*output));
280 }
281 }
282
av1_fwd_txfm2d_16x64_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)283 void av1_fwd_txfm2d_16x64_c(const int16_t *input, int32_t *output, int stride,
284 TX_TYPE tx_type, int bd) {
285 DECLARE_ALIGNED(32, int32_t, txfm_buf[64 * 16]);
286 TXFM_2D_FLIP_CFG cfg;
287 av1_get_fwd_txfm_cfg(tx_type, TX_16X64, &cfg);
288 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
289 // Zero out the bottom 16x32 area.
290 memset(output + 16 * 32, 0, 16 * 32 * sizeof(*output));
291 // Note: no repacking needed here.
292 }
293
av1_fwd_txfm2d_64x16_c(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)294 void av1_fwd_txfm2d_64x16_c(const int16_t *input, int32_t *output, int stride,
295 TX_TYPE tx_type, int bd) {
296 int32_t txfm_buf[64 * 16];
297 TXFM_2D_FLIP_CFG cfg;
298 av1_get_fwd_txfm_cfg(tx_type, TX_64X16, &cfg);
299 fwd_txfm2d_c(input, output, stride, &cfg, txfm_buf, bd);
300 // Zero out right 32x16 area.
301 for (int row = 0; row < 16; ++row) {
302 memset(output + row * 64 + 32, 0, 32 * sizeof(*output));
303 }
304 // Re-pack non-zero coeffs in the first 32x16 indices.
305 for (int row = 1; row < 16; ++row) {
306 memcpy(output + row * 32, output + row * 64, 32 * sizeof(*output));
307 }
308 }
309
310 static const int8_t fwd_shift_4x4[3] = { 2, 0, 0 };
311 static const int8_t fwd_shift_8x8[3] = { 2, -1, 0 };
312 static const int8_t fwd_shift_16x16[3] = { 2, -2, 0 };
313 static const int8_t fwd_shift_32x32[3] = { 2, -4, 0 };
314 static const int8_t fwd_shift_64x64[3] = { 0, -2, -2 };
315 static const int8_t fwd_shift_4x8[3] = { 2, -1, 0 };
316 static const int8_t fwd_shift_8x4[3] = { 2, -1, 0 };
317 static const int8_t fwd_shift_8x16[3] = { 2, -2, 0 };
318 static const int8_t fwd_shift_16x8[3] = { 2, -2, 0 };
319 static const int8_t fwd_shift_16x32[3] = { 2, -4, 0 };
320 static const int8_t fwd_shift_32x16[3] = { 2, -4, 0 };
321 static const int8_t fwd_shift_32x64[3] = { 0, -2, -2 };
322 static const int8_t fwd_shift_64x32[3] = { 2, -4, -2 };
323 static const int8_t fwd_shift_4x16[3] = { 2, -1, 0 };
324 static const int8_t fwd_shift_16x4[3] = { 2, -1, 0 };
325 static const int8_t fwd_shift_8x32[3] = { 2, -2, 0 };
326 static const int8_t fwd_shift_32x8[3] = { 2, -2, 0 };
327 static const int8_t fwd_shift_16x64[3] = { 0, -2, 0 };
328 static const int8_t fwd_shift_64x16[3] = { 2, -4, 0 };
329
330 const int8_t *fwd_txfm_shift_ls[TX_SIZES_ALL] = {
331 fwd_shift_4x4, fwd_shift_8x8, fwd_shift_16x16, fwd_shift_32x32,
332 fwd_shift_64x64, fwd_shift_4x8, fwd_shift_8x4, fwd_shift_8x16,
333 fwd_shift_16x8, fwd_shift_16x32, fwd_shift_32x16, fwd_shift_32x64,
334 fwd_shift_64x32, fwd_shift_4x16, fwd_shift_16x4, fwd_shift_8x32,
335 fwd_shift_32x8, fwd_shift_16x64, fwd_shift_64x16,
336 };
337
338 const int8_t fwd_cos_bit_col[MAX_TXWH_IDX /*txw_idx*/]
339 [MAX_TXWH_IDX /*txh_idx*/] = {
340 { 13, 13, 13, 0, 0 },
341 { 13, 13, 13, 12, 0 },
342 { 13, 13, 13, 12, 13 },
343 { 0, 13, 13, 12, 13 },
344 { 0, 0, 13, 12, 13 }
345 };
346
347 const int8_t fwd_cos_bit_row[MAX_TXWH_IDX /*txw_idx*/]
348 [MAX_TXWH_IDX /*txh_idx*/] = {
349 { 13, 13, 12, 0, 0 },
350 { 13, 13, 13, 12, 0 },
351 { 13, 13, 12, 13, 12 },
352 { 0, 12, 13, 12, 11 },
353 { 0, 0, 12, 11, 10 }
354 };
355
356 static const int8_t fdct4_range_mult2[4] = { 0, 2, 3, 3 };
357 static const int8_t fdct8_range_mult2[6] = { 0, 2, 4, 5, 5, 5 };
358 static const int8_t fdct16_range_mult2[8] = { 0, 2, 4, 6, 7, 7, 7, 7 };
359 static const int8_t fdct32_range_mult2[10] = { 0, 2, 4, 6, 8, 9, 9, 9, 9, 9 };
360 static const int8_t fdct64_range_mult2[12] = { 0, 2, 4, 6, 8, 10,
361 11, 11, 11, 11, 11, 11 };
362
363 static const int8_t fadst4_range_mult2[7] = { 0, 2, 4, 3, 3, 3, 3 };
364 static const int8_t fadst8_range_mult2[8] = { 0, 0, 1, 3, 3, 5, 5, 5 };
365 static const int8_t fadst16_range_mult2[10] = { 0, 0, 1, 3, 3, 5, 5, 7, 7, 7 };
366
367 static const int8_t fidtx4_range_mult2[1] = { 1 };
368 static const int8_t fidtx8_range_mult2[1] = { 2 };
369 static const int8_t fidtx16_range_mult2[1] = { 3 };
370 static const int8_t fidtx32_range_mult2[1] = { 4 };
371
372 #if 0
373 const int8_t fwd_idtx_range_row[MAX_TXWH_IDX /*txw_idx*/]
374 [MAX_TXWH_IDX /*txh_idx*/] = { { 2, 4, 5, 0, 0 },
375 { 3, 4, 5, 6, 0 },
376 { 4, 5, 6, 7, 8 },
377 { 0, 5, 6, 7, 8 },
378 { 0, 0, 7, 8,
379 9 } };
380 #endif
381
382 const int8_t *fwd_txfm_range_mult2_list[TXFM_TYPES] = {
383 fdct4_range_mult2, fdct8_range_mult2, fdct16_range_mult2,
384 fdct32_range_mult2, fdct64_range_mult2, fadst4_range_mult2,
385 fadst8_range_mult2, fadst16_range_mult2, fidtx4_range_mult2,
386 fidtx8_range_mult2, fidtx16_range_mult2, fidtx32_range_mult2
387 };
388
set_fwd_txfm_non_scale_range(TXFM_2D_FLIP_CFG * cfg)389 static INLINE void set_fwd_txfm_non_scale_range(TXFM_2D_FLIP_CFG *cfg) {
390 av1_zero(cfg->stage_range_col);
391 av1_zero(cfg->stage_range_row);
392
393 const int8_t *range_mult2_col = fwd_txfm_range_mult2_list[cfg->txfm_type_col];
394 if (cfg->txfm_type_col != TXFM_TYPE_INVALID) {
395 int stage_num_col = cfg->stage_num_col;
396 for (int i = 0; i < stage_num_col; ++i)
397 cfg->stage_range_col[i] = (range_mult2_col[i] + 1) >> 1;
398 }
399
400 if (cfg->txfm_type_row != TXFM_TYPE_INVALID) {
401 int stage_num_row = cfg->stage_num_row;
402 const int8_t *range_mult2_row =
403 fwd_txfm_range_mult2_list[cfg->txfm_type_row];
404 for (int i = 0; i < stage_num_row; ++i) {
405 cfg->stage_range_row[i] =
406 (range_mult2_col[cfg->stage_num_col - 1] + range_mult2_row[i] + 1) >>
407 1;
408 }
409 }
410 }
411
av1_get_fwd_txfm_cfg(TX_TYPE tx_type,TX_SIZE tx_size,TXFM_2D_FLIP_CFG * cfg)412 void av1_get_fwd_txfm_cfg(TX_TYPE tx_type, TX_SIZE tx_size,
413 TXFM_2D_FLIP_CFG *cfg) {
414 assert(cfg != NULL);
415 cfg->tx_size = tx_size;
416 set_flip_cfg(tx_type, cfg);
417 const TX_TYPE_1D tx_type_1d_col = vtx_tab[tx_type];
418 const TX_TYPE_1D tx_type_1d_row = htx_tab[tx_type];
419 const int txw_idx = tx_size_wide_log2[tx_size] - tx_size_wide_log2[0];
420 const int txh_idx = tx_size_high_log2[tx_size] - tx_size_high_log2[0];
421 cfg->shift = fwd_txfm_shift_ls[tx_size];
422 cfg->cos_bit_col = fwd_cos_bit_col[txw_idx][txh_idx];
423 cfg->cos_bit_row = fwd_cos_bit_row[txw_idx][txh_idx];
424 cfg->txfm_type_col = av1_txfm_type_ls[txh_idx][tx_type_1d_col];
425 cfg->txfm_type_row = av1_txfm_type_ls[txw_idx][tx_type_1d_row];
426 cfg->stage_num_col = av1_txfm_stage_num_list[cfg->txfm_type_col];
427 cfg->stage_num_row = av1_txfm_stage_num_list[cfg->txfm_type_row];
428 set_fwd_txfm_non_scale_range(cfg);
429 }
430