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 <math.h>
13
14 #include "config/aom_dsp_rtcd.h"
15 #include "config/av1_rtcd.h"
16
17 #include "aom_ports/mem.h"
18 #include "av1/common/av1_inv_txfm1d_cfg.h"
19 #include "av1/common/av1_txfm.h"
20 #include "av1/common/blockd.h"
21 #include "av1/common/enums.h"
22 #include "av1/common/idct.h"
23
av1_get_tx_scale(const TX_SIZE tx_size)24 int av1_get_tx_scale(const TX_SIZE tx_size) {
25 const int pels = tx_size_2d[tx_size];
26 // Largest possible pels is 4096 (64x64).
27 return (pels > 256) + (pels > 1024);
28 }
29
30 // NOTE: The implementation of all inverses need to be aware of the fact
31 // that input and output could be the same buffer.
32
33 // idct
av1_highbd_iwht4x4_add(const tran_low_t * input,uint8_t * dest,int stride,int eob,int bd)34 void av1_highbd_iwht4x4_add(const tran_low_t *input, uint8_t *dest, int stride,
35 int eob, int bd) {
36 if (eob > 1)
37 av1_highbd_iwht4x4_16_add(input, dest, stride, bd);
38 else
39 av1_highbd_iwht4x4_1_add(input, dest, stride, bd);
40 }
41
highbd_inv_txfm_add_4x4_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)42 static void highbd_inv_txfm_add_4x4_c(const tran_low_t *input, uint8_t *dest,
43 int stride, const TxfmParam *txfm_param) {
44 assert(av1_ext_tx_used[txfm_param->tx_set_type][txfm_param->tx_type]);
45 int eob = txfm_param->eob;
46 int bd = txfm_param->bd;
47 int lossless = txfm_param->lossless;
48 const int32_t *src = cast_to_int32(input);
49 const TX_TYPE tx_type = txfm_param->tx_type;
50 if (lossless) {
51 assert(tx_type == DCT_DCT);
52 av1_highbd_iwht4x4_add(input, dest, stride, eob, bd);
53 return;
54 }
55
56 av1_inv_txfm2d_add_4x4_c(src, CONVERT_TO_SHORTPTR(dest), stride, tx_type, bd);
57 }
58
highbd_inv_txfm_add_4x8_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)59 static void highbd_inv_txfm_add_4x8_c(const tran_low_t *input, uint8_t *dest,
60 int stride, const TxfmParam *txfm_param) {
61 assert(av1_ext_tx_used[txfm_param->tx_set_type][txfm_param->tx_type]);
62 const int32_t *src = cast_to_int32(input);
63 av1_inv_txfm2d_add_4x8_c(src, CONVERT_TO_SHORTPTR(dest), stride,
64 txfm_param->tx_type, txfm_param->bd);
65 }
66
highbd_inv_txfm_add_8x4_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)67 static void highbd_inv_txfm_add_8x4_c(const tran_low_t *input, uint8_t *dest,
68 int stride, const TxfmParam *txfm_param) {
69 assert(av1_ext_tx_used[txfm_param->tx_set_type][txfm_param->tx_type]);
70 const int32_t *src = cast_to_int32(input);
71 av1_inv_txfm2d_add_8x4_c(src, CONVERT_TO_SHORTPTR(dest), stride,
72 txfm_param->tx_type, txfm_param->bd);
73 }
74
highbd_inv_txfm_add_16x32_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)75 static void highbd_inv_txfm_add_16x32_c(const tran_low_t *input, uint8_t *dest,
76 int stride,
77 const TxfmParam *txfm_param) {
78 const int32_t *src = cast_to_int32(input);
79 av1_inv_txfm2d_add_16x32_c(src, CONVERT_TO_SHORTPTR(dest), stride,
80 txfm_param->tx_type, txfm_param->bd);
81 }
82
highbd_inv_txfm_add_32x16_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)83 static void highbd_inv_txfm_add_32x16_c(const tran_low_t *input, uint8_t *dest,
84 int stride,
85 const TxfmParam *txfm_param) {
86 const int32_t *src = cast_to_int32(input);
87 av1_inv_txfm2d_add_32x16_c(src, CONVERT_TO_SHORTPTR(dest), stride,
88 txfm_param->tx_type, txfm_param->bd);
89 }
90
highbd_inv_txfm_add_16x4_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)91 static void highbd_inv_txfm_add_16x4_c(const tran_low_t *input, uint8_t *dest,
92 int stride,
93 const TxfmParam *txfm_param) {
94 const int32_t *src = cast_to_int32(input);
95 av1_inv_txfm2d_add_16x4_c(src, CONVERT_TO_SHORTPTR(dest), stride,
96 txfm_param->tx_type, txfm_param->bd);
97 }
98
highbd_inv_txfm_add_4x16_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)99 static void highbd_inv_txfm_add_4x16_c(const tran_low_t *input, uint8_t *dest,
100 int stride,
101 const TxfmParam *txfm_param) {
102 const int32_t *src = cast_to_int32(input);
103 av1_inv_txfm2d_add_4x16_c(src, CONVERT_TO_SHORTPTR(dest), stride,
104 txfm_param->tx_type, txfm_param->bd);
105 }
106
highbd_inv_txfm_add_32x8_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)107 static void highbd_inv_txfm_add_32x8_c(const tran_low_t *input, uint8_t *dest,
108 int stride,
109 const TxfmParam *txfm_param) {
110 const int32_t *src = cast_to_int32(input);
111 av1_inv_txfm2d_add_32x8_c(src, CONVERT_TO_SHORTPTR(dest), stride,
112 txfm_param->tx_type, txfm_param->bd);
113 }
114
highbd_inv_txfm_add_8x32_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)115 static void highbd_inv_txfm_add_8x32_c(const tran_low_t *input, uint8_t *dest,
116 int stride,
117 const TxfmParam *txfm_param) {
118 const int32_t *src = cast_to_int32(input);
119 av1_inv_txfm2d_add_8x32_c(src, CONVERT_TO_SHORTPTR(dest), stride,
120 txfm_param->tx_type, txfm_param->bd);
121 }
122
highbd_inv_txfm_add_32x64_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)123 static void highbd_inv_txfm_add_32x64_c(const tran_low_t *input, uint8_t *dest,
124 int stride,
125 const TxfmParam *txfm_param) {
126 const int32_t *src = cast_to_int32(input);
127 av1_inv_txfm2d_add_32x64_c(src, CONVERT_TO_SHORTPTR(dest), stride,
128 txfm_param->tx_type, txfm_param->bd);
129 }
130
highbd_inv_txfm_add_64x32_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)131 static void highbd_inv_txfm_add_64x32_c(const tran_low_t *input, uint8_t *dest,
132 int stride,
133 const TxfmParam *txfm_param) {
134 const int32_t *src = cast_to_int32(input);
135 av1_inv_txfm2d_add_64x32_c(src, CONVERT_TO_SHORTPTR(dest), stride,
136 txfm_param->tx_type, txfm_param->bd);
137 }
138
highbd_inv_txfm_add_16x64_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)139 static void highbd_inv_txfm_add_16x64_c(const tran_low_t *input, uint8_t *dest,
140 int stride,
141 const TxfmParam *txfm_param) {
142 const int32_t *src = cast_to_int32(input);
143 av1_inv_txfm2d_add_16x64_c(src, CONVERT_TO_SHORTPTR(dest), stride,
144 txfm_param->tx_type, txfm_param->bd);
145 }
146
highbd_inv_txfm_add_64x16_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)147 static void highbd_inv_txfm_add_64x16_c(const tran_low_t *input, uint8_t *dest,
148 int stride,
149 const TxfmParam *txfm_param) {
150 const int32_t *src = cast_to_int32(input);
151 av1_inv_txfm2d_add_64x16_c(src, CONVERT_TO_SHORTPTR(dest), stride,
152 txfm_param->tx_type, txfm_param->bd);
153 }
154
highbd_inv_txfm_add_8x8_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)155 static void highbd_inv_txfm_add_8x8_c(const tran_low_t *input, uint8_t *dest,
156 int stride, const TxfmParam *txfm_param) {
157 int bd = txfm_param->bd;
158 const TX_TYPE tx_type = txfm_param->tx_type;
159 const int32_t *src = cast_to_int32(input);
160
161 av1_inv_txfm2d_add_8x8_c(src, CONVERT_TO_SHORTPTR(dest), stride, tx_type, bd);
162 }
163
highbd_inv_txfm_add_16x16_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)164 static void highbd_inv_txfm_add_16x16_c(const tran_low_t *input, uint8_t *dest,
165 int stride,
166 const TxfmParam *txfm_param) {
167 int bd = txfm_param->bd;
168 const TX_TYPE tx_type = txfm_param->tx_type;
169 const int32_t *src = cast_to_int32(input);
170
171 av1_inv_txfm2d_add_16x16_c(src, CONVERT_TO_SHORTPTR(dest), stride, tx_type,
172 bd);
173 }
174
highbd_inv_txfm_add_8x16_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)175 static void highbd_inv_txfm_add_8x16_c(const tran_low_t *input, uint8_t *dest,
176 int stride,
177 const TxfmParam *txfm_param) {
178 const int32_t *src = cast_to_int32(input);
179 av1_inv_txfm2d_add_8x16_c(src, CONVERT_TO_SHORTPTR(dest), stride,
180 txfm_param->tx_type, txfm_param->bd);
181 }
182
highbd_inv_txfm_add_16x8_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)183 static void highbd_inv_txfm_add_16x8_c(const tran_low_t *input, uint8_t *dest,
184 int stride,
185 const TxfmParam *txfm_param) {
186 const int32_t *src = cast_to_int32(input);
187 av1_inv_txfm2d_add_16x8_c(src, CONVERT_TO_SHORTPTR(dest), stride,
188 txfm_param->tx_type, txfm_param->bd);
189 }
190
highbd_inv_txfm_add_32x32_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)191 static void highbd_inv_txfm_add_32x32_c(const tran_low_t *input, uint8_t *dest,
192 int stride,
193 const TxfmParam *txfm_param) {
194 const int bd = txfm_param->bd;
195 const TX_TYPE tx_type = txfm_param->tx_type;
196 const int32_t *src = cast_to_int32(input);
197
198 av1_inv_txfm2d_add_32x32_c(src, CONVERT_TO_SHORTPTR(dest), stride, tx_type,
199 bd);
200 }
201
highbd_inv_txfm_add_64x64_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)202 static void highbd_inv_txfm_add_64x64_c(const tran_low_t *input, uint8_t *dest,
203 int stride,
204 const TxfmParam *txfm_param) {
205 const int bd = txfm_param->bd;
206 const TX_TYPE tx_type = txfm_param->tx_type;
207 const int32_t *src = cast_to_int32(input);
208 assert(tx_type == DCT_DCT);
209 av1_inv_txfm2d_add_64x64_c(src, CONVERT_TO_SHORTPTR(dest), stride, tx_type,
210 bd);
211 }
212
init_txfm_param(const MACROBLOCKD * xd,int plane,TX_SIZE tx_size,TX_TYPE tx_type,int eob,int reduced_tx_set,TxfmParam * txfm_param)213 static void init_txfm_param(const MACROBLOCKD *xd, int plane, TX_SIZE tx_size,
214 TX_TYPE tx_type, int eob, int reduced_tx_set,
215 TxfmParam *txfm_param) {
216 (void)plane;
217 txfm_param->tx_type = tx_type;
218 txfm_param->tx_size = tx_size;
219 txfm_param->eob = eob;
220 txfm_param->lossless = xd->lossless[xd->mi[0]->segment_id];
221 txfm_param->bd = xd->bd;
222 txfm_param->is_hbd = is_cur_buf_hbd(xd);
223 txfm_param->tx_set_type = av1_get_ext_tx_set_type(
224 txfm_param->tx_size, is_inter_block(xd->mi[0]), reduced_tx_set);
225 }
226
av1_highbd_inv_txfm_add_c(const tran_low_t * input,uint8_t * dest,int stride,const TxfmParam * txfm_param)227 void av1_highbd_inv_txfm_add_c(const tran_low_t *input, uint8_t *dest,
228 int stride, const TxfmParam *txfm_param) {
229 assert(av1_ext_tx_used[txfm_param->tx_set_type][txfm_param->tx_type]);
230 const TX_SIZE tx_size = txfm_param->tx_size;
231 switch (tx_size) {
232 case TX_32X32:
233 highbd_inv_txfm_add_32x32_c(input, dest, stride, txfm_param);
234 break;
235 case TX_16X16:
236 highbd_inv_txfm_add_16x16_c(input, dest, stride, txfm_param);
237 break;
238 case TX_8X8:
239 highbd_inv_txfm_add_8x8_c(input, dest, stride, txfm_param);
240 break;
241 case TX_4X8:
242 highbd_inv_txfm_add_4x8_c(input, dest, stride, txfm_param);
243 break;
244 case TX_8X4:
245 highbd_inv_txfm_add_8x4_c(input, dest, stride, txfm_param);
246 break;
247 case TX_8X16:
248 highbd_inv_txfm_add_8x16_c(input, dest, stride, txfm_param);
249 break;
250 case TX_16X8:
251 highbd_inv_txfm_add_16x8_c(input, dest, stride, txfm_param);
252 break;
253 case TX_16X32:
254 highbd_inv_txfm_add_16x32_c(input, dest, stride, txfm_param);
255 break;
256 case TX_32X16:
257 highbd_inv_txfm_add_32x16_c(input, dest, stride, txfm_param);
258 break;
259 case TX_64X64:
260 highbd_inv_txfm_add_64x64_c(input, dest, stride, txfm_param);
261 break;
262 case TX_32X64:
263 highbd_inv_txfm_add_32x64_c(input, dest, stride, txfm_param);
264 break;
265 case TX_64X32:
266 highbd_inv_txfm_add_64x32_c(input, dest, stride, txfm_param);
267 break;
268 case TX_16X64:
269 highbd_inv_txfm_add_16x64_c(input, dest, stride, txfm_param);
270 break;
271 case TX_64X16:
272 highbd_inv_txfm_add_64x16_c(input, dest, stride, txfm_param);
273 break;
274 case TX_4X4:
275 // this is like av1_short_idct4x4 but has a special case around eob<=1
276 // which is significant (not just an optimization) for the lossless
277 // case.
278 highbd_inv_txfm_add_4x4_c(input, dest, stride, txfm_param);
279 break;
280 case TX_16X4:
281 highbd_inv_txfm_add_16x4_c(input, dest, stride, txfm_param);
282 break;
283 case TX_4X16:
284 highbd_inv_txfm_add_4x16_c(input, dest, stride, txfm_param);
285 break;
286 case TX_8X32:
287 highbd_inv_txfm_add_8x32_c(input, dest, stride, txfm_param);
288 break;
289 case TX_32X8:
290 highbd_inv_txfm_add_32x8_c(input, dest, stride, txfm_param);
291 break;
292 default: assert(0 && "Invalid transform size"); break;
293 }
294 }
295
av1_inv_txfm_add_c(const tran_low_t * dqcoeff,uint8_t * dst,int stride,const TxfmParam * txfm_param)296 void av1_inv_txfm_add_c(const tran_low_t *dqcoeff, uint8_t *dst, int stride,
297 const TxfmParam *txfm_param) {
298 const TX_SIZE tx_size = txfm_param->tx_size;
299 DECLARE_ALIGNED(32, uint16_t, tmp[MAX_TX_SQUARE]);
300 int tmp_stride = MAX_TX_SIZE;
301 int w = tx_size_wide[tx_size];
302 int h = tx_size_high[tx_size];
303 for (int r = 0; r < h; ++r) {
304 for (int c = 0; c < w; ++c) {
305 tmp[r * tmp_stride + c] = dst[r * stride + c];
306 }
307 }
308
309 av1_highbd_inv_txfm_add(dqcoeff, CONVERT_TO_BYTEPTR(tmp), tmp_stride,
310 txfm_param);
311
312 for (int r = 0; r < h; ++r) {
313 for (int c = 0; c < w; ++c) {
314 dst[r * stride + c] = (uint8_t)tmp[r * tmp_stride + c];
315 }
316 }
317 }
318
av1_inverse_transform_block(const MACROBLOCKD * xd,const tran_low_t * dqcoeff,int plane,TX_TYPE tx_type,TX_SIZE tx_size,uint8_t * dst,int stride,int eob,int reduced_tx_set)319 void av1_inverse_transform_block(const MACROBLOCKD *xd,
320 const tran_low_t *dqcoeff, int plane,
321 TX_TYPE tx_type, TX_SIZE tx_size, uint8_t *dst,
322 int stride, int eob, int reduced_tx_set) {
323 if (!eob) return;
324
325 assert(eob <= av1_get_max_eob(tx_size));
326
327 TxfmParam txfm_param;
328 init_txfm_param(xd, plane, tx_size, tx_type, eob, reduced_tx_set,
329 &txfm_param);
330 assert(av1_ext_tx_used[txfm_param.tx_set_type][txfm_param.tx_type]);
331
332 if (txfm_param.is_hbd) {
333 av1_highbd_inv_txfm_add(dqcoeff, dst, stride, &txfm_param);
334 } else {
335 av1_inv_txfm_add(dqcoeff, dst, stride, &txfm_param);
336 }
337 }
338