1 /*
2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include "./vpx_config.h"
12 #include "./vpx_dsp_rtcd.h"
13
14 #if CONFIG_VP9_HIGHBITDEPTH
15 #include "vpx_dsp/vpx_dsp_common.h"
16 #endif // CONFIG_VP9_HIGHBITDEPTH
17 #include "vpx_mem/vpx_mem.h"
18 #include "vpx_ports/mem.h"
19 #include "vpx_ports/vpx_once.h"
20
21 #include "vp9/common/vp9_reconintra.h"
22 #include "vp9/common/vp9_onyxc_int.h"
23
24 const TX_TYPE intra_mode_to_tx_type_lookup[INTRA_MODES] = {
25 DCT_DCT, // DC
26 ADST_DCT, // V
27 DCT_ADST, // H
28 DCT_DCT, // D45
29 ADST_ADST, // D135
30 ADST_DCT, // D117
31 DCT_ADST, // D153
32 DCT_ADST, // D207
33 ADST_DCT, // D63
34 ADST_ADST, // TM
35 };
36
37 enum {
38 NEED_LEFT = 1 << 1,
39 NEED_ABOVE = 1 << 2,
40 NEED_ABOVERIGHT = 1 << 3,
41 };
42
43 static const uint8_t extend_modes[INTRA_MODES] = {
44 NEED_ABOVE | NEED_LEFT, // DC
45 NEED_ABOVE, // V
46 NEED_LEFT, // H
47 NEED_ABOVERIGHT, // D45
48 NEED_LEFT | NEED_ABOVE, // D135
49 NEED_LEFT | NEED_ABOVE, // D117
50 NEED_LEFT | NEED_ABOVE, // D153
51 NEED_LEFT, // D207
52 NEED_ABOVERIGHT, // D63
53 NEED_LEFT | NEED_ABOVE, // TM
54 };
55
56 typedef void (*intra_pred_fn)(uint8_t *dst, ptrdiff_t stride,
57 const uint8_t *above, const uint8_t *left);
58
59 static intra_pred_fn pred[INTRA_MODES][TX_SIZES];
60 static intra_pred_fn dc_pred[2][2][TX_SIZES];
61
62 #if CONFIG_VP9_HIGHBITDEPTH
63 typedef void (*intra_high_pred_fn)(uint16_t *dst, ptrdiff_t stride,
64 const uint16_t *above, const uint16_t *left,
65 int bd);
66 static intra_high_pred_fn pred_high[INTRA_MODES][4];
67 static intra_high_pred_fn dc_pred_high[2][2][4];
68 #endif // CONFIG_VP9_HIGHBITDEPTH
69
vp9_init_intra_predictors_internal(void)70 static void vp9_init_intra_predictors_internal(void) {
71 #define INIT_ALL_SIZES(p, type) \
72 p[TX_4X4] = vpx_##type##_predictor_4x4; \
73 p[TX_8X8] = vpx_##type##_predictor_8x8; \
74 p[TX_16X16] = vpx_##type##_predictor_16x16; \
75 p[TX_32X32] = vpx_##type##_predictor_32x32
76
77 INIT_ALL_SIZES(pred[V_PRED], v);
78 INIT_ALL_SIZES(pred[H_PRED], h);
79 INIT_ALL_SIZES(pred[D207_PRED], d207);
80 INIT_ALL_SIZES(pred[D45_PRED], d45);
81 INIT_ALL_SIZES(pred[D63_PRED], d63);
82 INIT_ALL_SIZES(pred[D117_PRED], d117);
83 INIT_ALL_SIZES(pred[D135_PRED], d135);
84 INIT_ALL_SIZES(pred[D153_PRED], d153);
85 INIT_ALL_SIZES(pred[TM_PRED], tm);
86
87 INIT_ALL_SIZES(dc_pred[0][0], dc_128);
88 INIT_ALL_SIZES(dc_pred[0][1], dc_top);
89 INIT_ALL_SIZES(dc_pred[1][0], dc_left);
90 INIT_ALL_SIZES(dc_pred[1][1], dc);
91
92 #if CONFIG_VP9_HIGHBITDEPTH
93 INIT_ALL_SIZES(pred_high[V_PRED], highbd_v);
94 INIT_ALL_SIZES(pred_high[H_PRED], highbd_h);
95 INIT_ALL_SIZES(pred_high[D207_PRED], highbd_d207);
96 INIT_ALL_SIZES(pred_high[D45_PRED], highbd_d45);
97 INIT_ALL_SIZES(pred_high[D63_PRED], highbd_d63);
98 INIT_ALL_SIZES(pred_high[D117_PRED], highbd_d117);
99 INIT_ALL_SIZES(pred_high[D135_PRED], highbd_d135);
100 INIT_ALL_SIZES(pred_high[D153_PRED], highbd_d153);
101 INIT_ALL_SIZES(pred_high[TM_PRED], highbd_tm);
102
103 INIT_ALL_SIZES(dc_pred_high[0][0], highbd_dc_128);
104 INIT_ALL_SIZES(dc_pred_high[0][1], highbd_dc_top);
105 INIT_ALL_SIZES(dc_pred_high[1][0], highbd_dc_left);
106 INIT_ALL_SIZES(dc_pred_high[1][1], highbd_dc);
107 #endif // CONFIG_VP9_HIGHBITDEPTH
108
109 #undef intra_pred_allsizes
110 }
111
112 #if CONFIG_VP9_HIGHBITDEPTH
build_intra_predictors_high(const MACROBLOCKD * xd,const uint8_t * ref8,int ref_stride,uint8_t * dst8,int dst_stride,PREDICTION_MODE mode,TX_SIZE tx_size,int up_available,int left_available,int right_available,int x,int y,int plane,int bd)113 static void build_intra_predictors_high(const MACROBLOCKD *xd,
114 const uint8_t *ref8,
115 int ref_stride,
116 uint8_t *dst8,
117 int dst_stride,
118 PREDICTION_MODE mode,
119 TX_SIZE tx_size,
120 int up_available,
121 int left_available,
122 int right_available,
123 int x, int y,
124 int plane, int bd) {
125 int i;
126 uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);
127 uint16_t *ref = CONVERT_TO_SHORTPTR(ref8);
128 DECLARE_ALIGNED(16, uint16_t, left_col[32]);
129 DECLARE_ALIGNED(16, uint16_t, above_data[64 + 16]);
130 uint16_t *above_row = above_data + 16;
131 const uint16_t *const_above_row = above_row;
132 const int bs = 4 << tx_size;
133 int frame_width, frame_height;
134 int x0, y0;
135 const struct macroblockd_plane *const pd = &xd->plane[plane];
136 int base = 128 << (bd - 8);
137 // 127 127 127 .. 127 127 127 127 127 127
138 // 129 A B .. Y Z
139 // 129 C D .. W X
140 // 129 E F .. U V
141 // 129 G H .. S T T T T T
142
143 // Get current frame pointer, width and height.
144 if (plane == 0) {
145 frame_width = xd->cur_buf->y_width;
146 frame_height = xd->cur_buf->y_height;
147 } else {
148 frame_width = xd->cur_buf->uv_width;
149 frame_height = xd->cur_buf->uv_height;
150 }
151
152 // Get block position in current frame.
153 x0 = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x)) + x;
154 y0 = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y)) + y;
155
156 // left
157 if (left_available) {
158 if (xd->mb_to_bottom_edge < 0) {
159 /* slower path if the block needs border extension */
160 if (y0 + bs <= frame_height) {
161 for (i = 0; i < bs; ++i)
162 left_col[i] = ref[i * ref_stride - 1];
163 } else {
164 const int extend_bottom = frame_height - y0;
165 for (i = 0; i < extend_bottom; ++i)
166 left_col[i] = ref[i * ref_stride - 1];
167 for (; i < bs; ++i)
168 left_col[i] = ref[(extend_bottom - 1) * ref_stride - 1];
169 }
170 } else {
171 /* faster path if the block does not need extension */
172 for (i = 0; i < bs; ++i)
173 left_col[i] = ref[i * ref_stride - 1];
174 }
175 } else {
176 // TODO(Peter): this value should probably change for high bitdepth
177 vpx_memset16(left_col, base + 1, bs);
178 }
179
180 // TODO(hkuang) do not extend 2*bs pixels for all modes.
181 // above
182 if (up_available) {
183 const uint16_t *above_ref = ref - ref_stride;
184 if (xd->mb_to_right_edge < 0) {
185 /* slower path if the block needs border extension */
186 if (x0 + 2 * bs <= frame_width) {
187 if (right_available && bs == 4) {
188 memcpy(above_row, above_ref, 2 * bs * sizeof(above_row[0]));
189 } else {
190 memcpy(above_row, above_ref, bs * sizeof(above_row[0]));
191 vpx_memset16(above_row + bs, above_row[bs - 1], bs);
192 }
193 } else if (x0 + bs <= frame_width) {
194 const int r = frame_width - x0;
195 if (right_available && bs == 4) {
196 memcpy(above_row, above_ref, r * sizeof(above_row[0]));
197 vpx_memset16(above_row + r, above_row[r - 1],
198 x0 + 2 * bs - frame_width);
199 } else {
200 memcpy(above_row, above_ref, bs * sizeof(above_row[0]));
201 vpx_memset16(above_row + bs, above_row[bs - 1], bs);
202 }
203 } else if (x0 <= frame_width) {
204 const int r = frame_width - x0;
205 memcpy(above_row, above_ref, r * sizeof(above_row[0]));
206 vpx_memset16(above_row + r, above_row[r - 1],
207 x0 + 2 * bs - frame_width);
208 }
209 // TODO(Peter) this value should probably change for high bitdepth
210 above_row[-1] = left_available ? above_ref[-1] : (base+1);
211 } else {
212 /* faster path if the block does not need extension */
213 if (bs == 4 && right_available && left_available) {
214 const_above_row = above_ref;
215 } else {
216 memcpy(above_row, above_ref, bs * sizeof(above_row[0]));
217 if (bs == 4 && right_available)
218 memcpy(above_row + bs, above_ref + bs, bs * sizeof(above_row[0]));
219 else
220 vpx_memset16(above_row + bs, above_row[bs - 1], bs);
221 // TODO(Peter): this value should probably change for high bitdepth
222 above_row[-1] = left_available ? above_ref[-1] : (base+1);
223 }
224 }
225 } else {
226 vpx_memset16(above_row, base - 1, bs * 2);
227 // TODO(Peter): this value should probably change for high bitdepth
228 above_row[-1] = base - 1;
229 }
230
231 // predict
232 if (mode == DC_PRED) {
233 dc_pred_high[left_available][up_available][tx_size](dst, dst_stride,
234 const_above_row,
235 left_col, xd->bd);
236 } else {
237 pred_high[mode][tx_size](dst, dst_stride, const_above_row, left_col,
238 xd->bd);
239 }
240 }
241 #endif // CONFIG_VP9_HIGHBITDEPTH
242
build_intra_predictors(const MACROBLOCKD * xd,const uint8_t * ref,int ref_stride,uint8_t * dst,int dst_stride,PREDICTION_MODE mode,TX_SIZE tx_size,int up_available,int left_available,int right_available,int x,int y,int plane)243 static void build_intra_predictors(const MACROBLOCKD *xd, const uint8_t *ref,
244 int ref_stride, uint8_t *dst, int dst_stride,
245 PREDICTION_MODE mode, TX_SIZE tx_size,
246 int up_available, int left_available,
247 int right_available, int x, int y,
248 int plane) {
249 int i;
250 DECLARE_ALIGNED(16, uint8_t, left_col[32]);
251 DECLARE_ALIGNED(16, uint8_t, above_data[64 + 16]);
252 uint8_t *above_row = above_data + 16;
253 const uint8_t *const_above_row = above_row;
254 const int bs = 4 << tx_size;
255 int frame_width, frame_height;
256 int x0, y0;
257 const struct macroblockd_plane *const pd = &xd->plane[plane];
258
259 // 127 127 127 .. 127 127 127 127 127 127
260 // 129 A B .. Y Z
261 // 129 C D .. W X
262 // 129 E F .. U V
263 // 129 G H .. S T T T T T
264 // ..
265
266 // Get current frame pointer, width and height.
267 if (plane == 0) {
268 frame_width = xd->cur_buf->y_width;
269 frame_height = xd->cur_buf->y_height;
270 } else {
271 frame_width = xd->cur_buf->uv_width;
272 frame_height = xd->cur_buf->uv_height;
273 }
274
275 // Get block position in current frame.
276 x0 = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x)) + x;
277 y0 = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y)) + y;
278
279 // NEED_LEFT
280 if (extend_modes[mode] & NEED_LEFT) {
281 if (left_available) {
282 if (xd->mb_to_bottom_edge < 0) {
283 /* slower path if the block needs border extension */
284 if (y0 + bs <= frame_height) {
285 for (i = 0; i < bs; ++i)
286 left_col[i] = ref[i * ref_stride - 1];
287 } else {
288 const int extend_bottom = frame_height - y0;
289 for (i = 0; i < extend_bottom; ++i)
290 left_col[i] = ref[i * ref_stride - 1];
291 for (; i < bs; ++i)
292 left_col[i] = ref[(extend_bottom - 1) * ref_stride - 1];
293 }
294 } else {
295 /* faster path if the block does not need extension */
296 for (i = 0; i < bs; ++i)
297 left_col[i] = ref[i * ref_stride - 1];
298 }
299 } else {
300 memset(left_col, 129, bs);
301 }
302 }
303
304 // NEED_ABOVE
305 if (extend_modes[mode] & NEED_ABOVE) {
306 if (up_available) {
307 const uint8_t *above_ref = ref - ref_stride;
308 if (xd->mb_to_right_edge < 0) {
309 /* slower path if the block needs border extension */
310 if (x0 + bs <= frame_width) {
311 memcpy(above_row, above_ref, bs);
312 } else if (x0 <= frame_width) {
313 const int r = frame_width - x0;
314 memcpy(above_row, above_ref, r);
315 memset(above_row + r, above_row[r - 1], x0 + bs - frame_width);
316 }
317 } else {
318 /* faster path if the block does not need extension */
319 if (bs == 4 && right_available && left_available) {
320 const_above_row = above_ref;
321 } else {
322 memcpy(above_row, above_ref, bs);
323 }
324 }
325 above_row[-1] = left_available ? above_ref[-1] : 129;
326 } else {
327 memset(above_row, 127, bs);
328 above_row[-1] = 127;
329 }
330 }
331
332 // NEED_ABOVERIGHT
333 if (extend_modes[mode] & NEED_ABOVERIGHT) {
334 if (up_available) {
335 const uint8_t *above_ref = ref - ref_stride;
336 if (xd->mb_to_right_edge < 0) {
337 /* slower path if the block needs border extension */
338 if (x0 + 2 * bs <= frame_width) {
339 if (right_available && bs == 4) {
340 memcpy(above_row, above_ref, 2 * bs);
341 } else {
342 memcpy(above_row, above_ref, bs);
343 memset(above_row + bs, above_row[bs - 1], bs);
344 }
345 } else if (x0 + bs <= frame_width) {
346 const int r = frame_width - x0;
347 if (right_available && bs == 4) {
348 memcpy(above_row, above_ref, r);
349 memset(above_row + r, above_row[r - 1], x0 + 2 * bs - frame_width);
350 } else {
351 memcpy(above_row, above_ref, bs);
352 memset(above_row + bs, above_row[bs - 1], bs);
353 }
354 } else if (x0 <= frame_width) {
355 const int r = frame_width - x0;
356 memcpy(above_row, above_ref, r);
357 memset(above_row + r, above_row[r - 1], x0 + 2 * bs - frame_width);
358 }
359 } else {
360 /* faster path if the block does not need extension */
361 if (bs == 4 && right_available && left_available) {
362 const_above_row = above_ref;
363 } else {
364 memcpy(above_row, above_ref, bs);
365 if (bs == 4 && right_available)
366 memcpy(above_row + bs, above_ref + bs, bs);
367 else
368 memset(above_row + bs, above_row[bs - 1], bs);
369 }
370 }
371 above_row[-1] = left_available ? above_ref[-1] : 129;
372 } else {
373 memset(above_row, 127, bs * 2);
374 above_row[-1] = 127;
375 }
376 }
377
378 // predict
379 if (mode == DC_PRED) {
380 dc_pred[left_available][up_available][tx_size](dst, dst_stride,
381 const_above_row, left_col);
382 } else {
383 pred[mode][tx_size](dst, dst_stride, const_above_row, left_col);
384 }
385 }
386
vp9_predict_intra_block(const MACROBLOCKD * xd,int bwl_in,TX_SIZE tx_size,PREDICTION_MODE mode,const uint8_t * ref,int ref_stride,uint8_t * dst,int dst_stride,int aoff,int loff,int plane)387 void vp9_predict_intra_block(const MACROBLOCKD *xd, int bwl_in,
388 TX_SIZE tx_size, PREDICTION_MODE mode,
389 const uint8_t *ref, int ref_stride,
390 uint8_t *dst, int dst_stride,
391 int aoff, int loff, int plane) {
392 const int bw = (1 << bwl_in);
393 const int txw = (1 << tx_size);
394 const int have_top = loff || xd->up_available;
395 const int have_left = aoff || xd->left_available;
396 const int have_right = (aoff + txw) < bw;
397 const int x = aoff * 4;
398 const int y = loff * 4;
399
400 #if CONFIG_VP9_HIGHBITDEPTH
401 if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
402 build_intra_predictors_high(xd, ref, ref_stride, dst, dst_stride, mode,
403 tx_size, have_top, have_left, have_right,
404 x, y, plane, xd->bd);
405 return;
406 }
407 #endif
408 build_intra_predictors(xd, ref, ref_stride, dst, dst_stride, mode, tx_size,
409 have_top, have_left, have_right, x, y, plane);
410 }
411
vp9_init_intra_predictors(void)412 void vp9_init_intra_predictors(void) {
413 once(vp9_init_intra_predictors_internal);
414 }
415