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_mem/vpx_mem.h"
13
14#include "vp9/common/vp9_blockd.h"
15#include "vp9/common/vp9_entropymode.h"
16#include "vp9/common/vp9_entropymv.h"
17#include "vp9/common/vp9_onyxc_int.h"
18#include "vp9/common/vp9_systemdependent.h"
19
20static void clear_mi_border(const VP9_COMMON *cm, MODE_INFO *mi) {
21  int i;
22
23  // Top border row
24  vpx_memset(mi, 0, sizeof(*mi) * cm->mi_stride);
25
26  // Left border column
27  for (i = 1; i < cm->mi_rows + 1; ++i)
28    vpx_memset(&mi[i * cm->mi_stride], 0, sizeof(*mi));
29}
30
31static void set_mb_mi(VP9_COMMON *cm, int aligned_width, int aligned_height) {
32  cm->mi_cols = aligned_width >> MI_SIZE_LOG2;
33  cm->mi_rows = aligned_height >> MI_SIZE_LOG2;
34  cm->mi_stride = cm->mi_cols + MI_BLOCK_SIZE;
35
36  cm->mb_cols = (cm->mi_cols + 1) >> 1;
37  cm->mb_rows = (cm->mi_rows + 1) >> 1;
38  cm->MBs = cm->mb_rows * cm->mb_cols;
39}
40
41static void setup_mi(VP9_COMMON *cm) {
42  cm->mi = cm->mip + cm->mi_stride + 1;
43  cm->prev_mi = cm->prev_mip + cm->mi_stride + 1;
44  cm->mi_grid_visible = cm->mi_grid_base + cm->mi_stride + 1;
45  cm->prev_mi_grid_visible = cm->prev_mi_grid_base + cm->mi_stride + 1;
46
47  vpx_memset(cm->mip, 0, cm->mi_stride * (cm->mi_rows + 1) * sizeof(*cm->mip));
48
49  vpx_memset(cm->mi_grid_base, 0, cm->mi_stride * (cm->mi_rows + 1) *
50                                      sizeof(*cm->mi_grid_base));
51
52  clear_mi_border(cm, cm->prev_mip);
53}
54
55static int alloc_mi(VP9_COMMON *cm, int mi_size) {
56  cm->mip = (MODE_INFO *)vpx_calloc(mi_size, sizeof(*cm->mip));
57  if (cm->mip == NULL)
58    return 1;
59
60  cm->prev_mip = (MODE_INFO *)vpx_calloc(mi_size, sizeof(*cm->prev_mip));
61  if (cm->prev_mip == NULL)
62    return 1;
63
64  cm->mi_grid_base =
65      (MODE_INFO **)vpx_calloc(mi_size, sizeof(*cm->mi_grid_base));
66  if (cm->mi_grid_base == NULL)
67    return 1;
68
69  cm->prev_mi_grid_base =
70      (MODE_INFO **)vpx_calloc(mi_size, sizeof(*cm->prev_mi_grid_base));
71  if (cm->prev_mi_grid_base == NULL)
72    return 1;
73
74  return 0;
75}
76
77static void free_mi(VP9_COMMON *cm) {
78  vpx_free(cm->mip);
79  vpx_free(cm->prev_mip);
80  vpx_free(cm->mi_grid_base);
81  vpx_free(cm->prev_mi_grid_base);
82
83  cm->mip = NULL;
84  cm->prev_mip = NULL;
85  cm->mi_grid_base = NULL;
86  cm->prev_mi_grid_base = NULL;
87}
88
89void vp9_free_frame_buffers(VP9_COMMON *cm) {
90  int i;
91
92  for (i = 0; i < FRAME_BUFFERS; ++i) {
93    vp9_free_frame_buffer(&cm->frame_bufs[i].buf);
94
95    if (cm->frame_bufs[i].ref_count > 0 &&
96        cm->frame_bufs[i].raw_frame_buffer.data != NULL) {
97      cm->release_fb_cb(cm->cb_priv, &cm->frame_bufs[i].raw_frame_buffer);
98      cm->frame_bufs[i].ref_count = 0;
99    }
100  }
101
102  vp9_free_frame_buffer(&cm->post_proc_buffer);
103
104  free_mi(cm);
105
106  vpx_free(cm->last_frame_seg_map);
107  cm->last_frame_seg_map = NULL;
108
109  vpx_free(cm->above_context);
110  cm->above_context = NULL;
111
112  vpx_free(cm->above_seg_context);
113  cm->above_seg_context = NULL;
114}
115
116int vp9_resize_frame_buffers(VP9_COMMON *cm, int width, int height) {
117  const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2);
118  const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2);
119  const int ss_x = cm->subsampling_x;
120  const int ss_y = cm->subsampling_y;
121
122  if (vp9_realloc_frame_buffer(&cm->post_proc_buffer, width, height, ss_x, ss_y,
123                               VP9_DEC_BORDER_IN_PIXELS, NULL, NULL, NULL) < 0)
124    goto fail;
125
126  set_mb_mi(cm, aligned_width, aligned_height);
127
128  free_mi(cm);
129  if (alloc_mi(cm, cm->mi_stride * (cm->mi_rows + MI_BLOCK_SIZE)))
130    goto fail;
131
132  setup_mi(cm);
133
134  // Create the segmentation map structure and set to 0.
135  vpx_free(cm->last_frame_seg_map);
136  cm->last_frame_seg_map = (uint8_t *)vpx_calloc(cm->mi_rows * cm->mi_cols, 1);
137  if (!cm->last_frame_seg_map)
138    goto fail;
139
140  vpx_free(cm->above_context);
141  cm->above_context =
142      (ENTROPY_CONTEXT *)vpx_calloc(2 * mi_cols_aligned_to_sb(cm->mi_cols) *
143                                        MAX_MB_PLANE,
144                                    sizeof(*cm->above_context));
145  if (!cm->above_context)
146    goto fail;
147
148  vpx_free(cm->above_seg_context);
149  cm->above_seg_context =
150     (PARTITION_CONTEXT *)vpx_calloc(mi_cols_aligned_to_sb(cm->mi_cols),
151                                     sizeof(*cm->above_seg_context));
152  if (!cm->above_seg_context)
153    goto fail;
154
155  return 0;
156
157 fail:
158  vp9_free_frame_buffers(cm);
159  return 1;
160}
161
162int vp9_alloc_frame_buffers(VP9_COMMON *cm, int width, int height) {
163  const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2);
164  const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2);
165  const int ss_x = cm->subsampling_x;
166  const int ss_y = cm->subsampling_y;
167  int i;
168
169  vp9_free_frame_buffers(cm);
170
171  for (i = 0; i < FRAME_BUFFERS; i++) {
172    cm->frame_bufs[i].ref_count = 0;
173    if (vp9_alloc_frame_buffer(&cm->frame_bufs[i].buf, width, height,
174                               ss_x, ss_y, VP9_ENC_BORDER_IN_PIXELS) < 0)
175      goto fail;
176  }
177
178  cm->new_fb_idx = FRAME_BUFFERS - 1;
179  cm->frame_bufs[cm->new_fb_idx].ref_count = 1;
180
181  for (i = 0; i < REF_FRAMES; i++) {
182    cm->ref_frame_map[i] = i;
183    cm->frame_bufs[i].ref_count = 1;
184  }
185
186  if (vp9_alloc_frame_buffer(&cm->post_proc_buffer, width, height, ss_x, ss_y,
187                             VP9_ENC_BORDER_IN_PIXELS) < 0)
188    goto fail;
189
190  set_mb_mi(cm, aligned_width, aligned_height);
191
192  if (alloc_mi(cm, cm->mi_stride * (cm->mi_rows + MI_BLOCK_SIZE)))
193    goto fail;
194
195  setup_mi(cm);
196
197  // Create the segmentation map structure and set to 0.
198  cm->last_frame_seg_map = (uint8_t *)vpx_calloc(cm->mi_rows * cm->mi_cols, 1);
199  if (!cm->last_frame_seg_map)
200    goto fail;
201
202  cm->above_context =
203      (ENTROPY_CONTEXT *)vpx_calloc(2 * mi_cols_aligned_to_sb(cm->mi_cols) *
204                                        MAX_MB_PLANE,
205                                    sizeof(*cm->above_context));
206  if (!cm->above_context)
207    goto fail;
208
209  cm->above_seg_context =
210      (PARTITION_CONTEXT *)vpx_calloc(mi_cols_aligned_to_sb(cm->mi_cols),
211                                      sizeof(*cm->above_seg_context));
212  if (!cm->above_seg_context)
213    goto fail;
214
215  return 0;
216
217 fail:
218  vp9_free_frame_buffers(cm);
219  return 1;
220}
221
222void vp9_remove_common(VP9_COMMON *cm) {
223  vp9_free_frame_buffers(cm);
224  vp9_free_internal_frame_buffers(&cm->int_frame_buffers);
225}
226
227void vp9_update_frame_size(VP9_COMMON *cm) {
228  const int aligned_width = ALIGN_POWER_OF_TWO(cm->width, MI_SIZE_LOG2);
229  const int aligned_height = ALIGN_POWER_OF_TWO(cm->height, MI_SIZE_LOG2);
230
231  set_mb_mi(cm, aligned_width, aligned_height);
232  setup_mi(cm);
233
234  // Initialize the previous frame segment map to 0.
235  if (cm->last_frame_seg_map)
236    vpx_memset(cm->last_frame_seg_map, 0, cm->mi_rows * cm->mi_cols);
237}
238
239void vp9_swap_mi_and_prev_mi(VP9_COMMON *cm) {
240  // Current mip will be the prev_mip for the next frame.
241  MODE_INFO *temp = cm->prev_mip;
242  MODE_INFO **temp2 = cm->prev_mi_grid_base;
243  cm->prev_mip = cm->mip;
244  cm->mip = temp;
245  cm->prev_mi_grid_base = cm->mi_grid_base;
246  cm->mi_grid_base = temp2;
247
248  // Update the upper left visible macroblock ptrs.
249  cm->mi = cm->mip + cm->mi_stride + 1;
250  cm->prev_mi = cm->prev_mip + cm->mi_stride + 1;
251  cm->mi_grid_visible = cm->mi_grid_base + cm->mi_stride + 1;
252  cm->prev_mi_grid_visible = cm->prev_mi_grid_base + cm->mi_stride + 1;
253}
254