• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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