vp9_alloccommon.c 4.92 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1
/*
2
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
John Koleszar's avatar
John Koleszar committed
3
 *
4
 *  Use of this source code is governed by a BSD-style license
5
6
 *  that can be found in the LICENSE file in the root of the source
 *  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.
John Koleszar's avatar
John Koleszar committed
9
10
11
 */


12
#include "./vpx_config.h"
John Koleszar's avatar
John Koleszar committed
13
#include "vpx_mem/vpx_mem.h"
14

15
#include "vp9/common/vp9_blockd.h"
16
17
#include "vp9/common/vp9_entropymode.h"
#include "vp9/common/vp9_entropymv.h"
18
19
#include "vp9/common/vp9_findnearmv.h"
#include "vp9/common/vp9_onyxc_int.h"
20
#include "vp9/common/vp9_systemdependent.h"
John Koleszar's avatar
John Koleszar committed
21

22
23
void vp9_update_mode_info_border(VP9_COMMON *cm, MODE_INFO *mi) {
  const int stride = cm->mode_info_stride;
John Koleszar's avatar
John Koleszar committed
24
25
26
  int i;

  // Clear down top border row
Dmitry Kovalev's avatar
Dmitry Kovalev committed
27
  vpx_memset(mi, 0, sizeof(MODE_INFO) * stride);
John Koleszar's avatar
John Koleszar committed
28
29

  // Clear left border column
30
  for (i = 1; i < cm->mi_rows + 1; i++)
Dmitry Kovalev's avatar
Dmitry Kovalev committed
31
    vpx_memset(&mi[i * stride], 0, sizeof(MODE_INFO));
32
}
33

34
void vp9_free_frame_buffers(VP9_COMMON *cm) {
John Koleszar's avatar
John Koleszar committed
35
  int i;
36

John Koleszar's avatar
John Koleszar committed
37
  for (i = 0; i < NUM_YV12_BUFFERS; i++)
38
    vp9_free_frame_buffer(&cm->yv12_fb[i]);
39

40
  vp9_free_frame_buffer(&cm->post_proc_buffer);
John Koleszar's avatar
John Koleszar committed
41

42
43
44
  vpx_free(cm->mip);
  vpx_free(cm->prev_mip);
  vpx_free(cm->last_frame_seg_map);
45
46
  vpx_free(cm->mi_grid_base);
  vpx_free(cm->prev_mi_grid_base);
John Koleszar's avatar
John Koleszar committed
47

48
49
50
  cm->mip = NULL;
  cm->prev_mip = NULL;
  cm->last_frame_seg_map = NULL;
51
52
  cm->mi_grid_base = NULL;
  cm->prev_mi_grid_base = NULL;
John Koleszar's avatar
John Koleszar committed
53
54
}

55
static void set_mb_mi(VP9_COMMON *cm, int aligned_width, int aligned_height) {
James Zern's avatar
James Zern committed
56
57
  cm->mi_cols = aligned_width >> MI_SIZE_LOG2;
  cm->mi_rows = aligned_height >> MI_SIZE_LOG2;
58
  cm->mode_info_stride = cm->mi_cols + MI_BLOCK_SIZE;
59
60
61
62

  cm->mb_cols = (cm->mi_cols + 1) >> 1;
  cm->mb_rows = (cm->mi_rows + 1) >> 1;
  cm->MBs = cm->mb_rows * cm->mb_cols;
63
64
65
66
67
}

static void setup_mi(VP9_COMMON *cm) {
  cm->mi = cm->mip + cm->mode_info_stride + 1;
  cm->prev_mi = cm->prev_mip + cm->mode_info_stride + 1;
68
69
  cm->mi_grid_visible = cm->mi_grid_base + cm->mode_info_stride + 1;
  cm->prev_mi_grid_visible = cm->prev_mi_grid_base + cm->mode_info_stride + 1;
70
71
72
73

  vpx_memset(cm->mip, 0,
             cm->mode_info_stride * (cm->mi_rows + 1) * sizeof(MODE_INFO));

74
75
76
  vpx_memset(cm->mi_grid_base, 0,
             cm->mode_info_stride * (cm->mi_rows + 1) *
             sizeof(*cm->mi_grid_base));
77

78
  vp9_update_mode_info_border(cm, cm->mip);
79
80
81
  vp9_update_mode_info_border(cm, cm->prev_mip);
}

82
int vp9_alloc_frame_buffers(VP9_COMMON *cm, int width, int height) {
83
  int i;
84

James Zern's avatar
James Zern committed
85
86
  const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2);
  const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2);
87
88
  const int ss_x = cm->subsampling_x;
  const int ss_y = cm->subsampling_y;
89
  int mi_size;
John Koleszar's avatar
John Koleszar committed
90

91
  vp9_free_frame_buffers(cm);
John Koleszar's avatar
John Koleszar committed
92

John Koleszar's avatar
John Koleszar committed
93
  for (i = 0; i < NUM_YV12_BUFFERS; i++) {
94
95
    cm->fb_idx_ref_cnt[i] = 0;
    if (vp9_alloc_frame_buffer(&cm->yv12_fb[i], width, height, ss_x, ss_y,
96
97
                               VP9BORDERINPIXELS) < 0)
      goto fail;
John Koleszar's avatar
John Koleszar committed
98
  }
John Koleszar's avatar
John Koleszar committed
99

100
101
  cm->new_fb_idx = NUM_YV12_BUFFERS - 1;
  cm->fb_idx_ref_cnt[cm->new_fb_idx] = 1;
102

103
  for (i = 0; i < ALLOWED_REFS_PER_FRAME; i++)
104
    cm->active_ref_idx[i] = i;
John Koleszar's avatar
John Koleszar committed
105

106
  for (i = 0; i < NUM_REF_FRAMES; i++) {
107
108
    cm->ref_frame_map[i] = i;
    cm->fb_idx_ref_cnt[i] = 1;
109
  }
John Koleszar's avatar
John Koleszar committed
110

111
  if (vp9_alloc_frame_buffer(&cm->post_proc_buffer, width, height, ss_x, ss_y,
112
113
114
                             VP9BORDERINPIXELS) < 0)
    goto fail;

115
  set_mb_mi(cm, aligned_width, aligned_height);
John Koleszar's avatar
John Koleszar committed
116

117
  // Allocation
118
  mi_size = cm->mode_info_stride * (cm->mi_rows + MI_BLOCK_SIZE);
119

120
121
  cm->mip = vpx_calloc(mi_size, sizeof(MODE_INFO));
  if (!cm->mip)
122
    goto fail;
Paul Wilkins's avatar
Paul Wilkins committed
123

124
125
  cm->prev_mip = vpx_calloc(mi_size, sizeof(MODE_INFO));
  if (!cm->prev_mip)
126
    goto fail;
127

128
129
130
131
132
133
134
135
  cm->mi_grid_base = vpx_calloc(mi_size, sizeof(*cm->mi_grid_base));
  if (!cm->mi_grid_base)
    goto fail;

  cm->prev_mi_grid_base = vpx_calloc(mi_size, sizeof(*cm->prev_mi_grid_base));
  if (!cm->prev_mi_grid_base)
    goto fail;

136
  setup_mi(cm);
John Koleszar's avatar
John Koleszar committed
137

138
  // Create the segmentation map structure and set to 0.
139
140
  cm->last_frame_seg_map = vpx_calloc(cm->mi_rows * cm->mi_cols, 1);
  if (!cm->last_frame_seg_map)
141
142
    goto fail;

John Koleszar's avatar
John Koleszar committed
143
  return 0;
144
145

 fail:
146
  vp9_free_frame_buffers(cm);
147
  return 1;
John Koleszar's avatar
John Koleszar committed
148
}
149

150
151
void vp9_create_common(VP9_COMMON *cm) {
  vp9_machine_specific_config(cm);
John Koleszar's avatar
John Koleszar committed
152

153
154
  cm->tx_mode = ONLY_4X4;
  cm->comp_pred_mode = HYBRID_PREDICTION;
John Koleszar's avatar
John Koleszar committed
155
156
}

157
158
void vp9_remove_common(VP9_COMMON *cm) {
  vp9_free_frame_buffers(cm);
John Koleszar's avatar
John Koleszar committed
159
160
}

161
void vp9_initialize_common() {
162
  vp9_init_neighbors();
163
164
165
  vp9_coef_tree_initialize();
  vp9_entropy_mode_init();
  vp9_entropy_mv_init();
John Koleszar's avatar
John Koleszar committed
166
}
167
168

void vp9_update_frame_size(VP9_COMMON *cm) {
James Zern's avatar
James Zern committed
169
170
  const int aligned_width = ALIGN_POWER_OF_TWO(cm->width, MI_SIZE_LOG2);
  const int aligned_height = ALIGN_POWER_OF_TWO(cm->height, MI_SIZE_LOG2);
171

172
173
  set_mb_mi(cm, aligned_width, aligned_height);
  setup_mi(cm);
John Koleszar's avatar
John Koleszar committed
174

175
176
177
  // Initialize the previous frame segment map to 0.
  if (cm->last_frame_seg_map)
    vpx_memset(cm->last_frame_seg_map, 0, cm->mi_rows * cm->mi_cols);
178
}