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
clear_mi_border(const VP9_COMMON * cm,MODE_INFO * mi)20 static 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
vp9_set_mb_mi(VP9_COMMON * cm,int width,int height)31 void vp9_set_mb_mi(VP9_COMMON *cm, int width, int height) {
32 const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2);
33 const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2);
34
35 cm->mi_cols = aligned_width >> MI_SIZE_LOG2;
36 cm->mi_rows = aligned_height >> MI_SIZE_LOG2;
37 cm->mi_stride = cm->mi_cols + MI_BLOCK_SIZE;
38
39 cm->mb_cols = (cm->mi_cols + 1) >> 1;
40 cm->mb_rows = (cm->mi_rows + 1) >> 1;
41 cm->MBs = cm->mb_rows * cm->mb_cols;
42 }
43
setup_mi(VP9_COMMON * cm)44 static void setup_mi(VP9_COMMON *cm) {
45 cm->mi = cm->mip + cm->mi_stride + 1;
46 cm->prev_mi = cm->prev_mip + cm->mi_stride + 1;
47 cm->mi_grid_visible = cm->mi_grid_base + cm->mi_stride + 1;
48 cm->prev_mi_grid_visible = cm->prev_mi_grid_base + cm->mi_stride + 1;
49
50 vpx_memset(cm->mip, 0, cm->mi_stride * (cm->mi_rows + 1) * sizeof(*cm->mip));
51
52 vpx_memset(cm->mi_grid_base, 0, cm->mi_stride * (cm->mi_rows + 1) *
53 sizeof(*cm->mi_grid_base));
54
55 clear_mi_border(cm, cm->prev_mip);
56 }
57
alloc_mi(VP9_COMMON * cm,int mi_size)58 static int alloc_mi(VP9_COMMON *cm, int mi_size) {
59 int i;
60
61 for (i = 0; i < 2; ++i) {
62 cm->mip_array[i] =
63 (MODE_INFO *)vpx_calloc(mi_size, sizeof(*cm->mip));
64 if (cm->mip_array[i] == NULL)
65 return 1;
66
67 cm->mi_grid_base_array[i] =
68 (MODE_INFO **)vpx_calloc(mi_size, sizeof(*cm->mi_grid_base));
69 if (cm->mi_grid_base_array[i] == NULL)
70 return 1;
71 }
72
73 // Init the index.
74 cm->mi_idx = 0;
75 cm->prev_mi_idx = 1;
76
77 cm->mip = cm->mip_array[cm->mi_idx];
78 cm->prev_mip = cm->mip_array[cm->prev_mi_idx];
79 cm->mi_grid_base = cm->mi_grid_base_array[cm->mi_idx];
80 cm->prev_mi_grid_base = cm->mi_grid_base_array[cm->prev_mi_idx];
81
82 return 0;
83 }
84
free_mi(VP9_COMMON * cm)85 static void free_mi(VP9_COMMON *cm) {
86 int i;
87
88 for (i = 0; i < 2; ++i) {
89 vpx_free(cm->mip_array[i]);
90 cm->mip_array[i] = NULL;
91 vpx_free(cm->mi_grid_base_array[i]);
92 cm->mi_grid_base_array[i] = NULL;
93 }
94
95 cm->mip = NULL;
96 cm->prev_mip = NULL;
97 cm->mi_grid_base = NULL;
98 cm->prev_mi_grid_base = NULL;
99 }
100
vp9_free_ref_frame_buffers(VP9_COMMON * cm)101 void vp9_free_ref_frame_buffers(VP9_COMMON *cm) {
102 int i;
103
104 for (i = 0; i < FRAME_BUFFERS; ++i) {
105 vp9_free_frame_buffer(&cm->frame_bufs[i].buf);
106
107 if (cm->frame_bufs[i].ref_count > 0 &&
108 cm->frame_bufs[i].raw_frame_buffer.data != NULL) {
109 cm->release_fb_cb(cm->cb_priv, &cm->frame_bufs[i].raw_frame_buffer);
110 cm->frame_bufs[i].ref_count = 0;
111 }
112 }
113
114 vp9_free_frame_buffer(&cm->post_proc_buffer);
115 }
116
vp9_free_context_buffers(VP9_COMMON * cm)117 void vp9_free_context_buffers(VP9_COMMON *cm) {
118 free_mi(cm);
119
120 vpx_free(cm->last_frame_seg_map);
121 cm->last_frame_seg_map = NULL;
122
123 vpx_free(cm->above_context);
124 cm->above_context = NULL;
125
126 vpx_free(cm->above_seg_context);
127 cm->above_seg_context = NULL;
128 }
129
vp9_alloc_context_buffers(VP9_COMMON * cm,int width,int height)130 int vp9_alloc_context_buffers(VP9_COMMON *cm, int width, int height) {
131 vp9_free_context_buffers(cm);
132
133 vp9_set_mb_mi(cm, width, height);
134 if (alloc_mi(cm, cm->mi_stride * (cm->mi_rows + MI_BLOCK_SIZE))) goto fail;
135
136 cm->last_frame_seg_map = (uint8_t *)vpx_calloc(cm->mi_rows * cm->mi_cols, 1);
137 if (!cm->last_frame_seg_map) goto fail;
138
139 cm->above_context = (ENTROPY_CONTEXT *)vpx_calloc(
140 2 * mi_cols_aligned_to_sb(cm->mi_cols) * MAX_MB_PLANE,
141 sizeof(*cm->above_context));
142 if (!cm->above_context) goto fail;
143
144 cm->above_seg_context = (PARTITION_CONTEXT *)vpx_calloc(
145 mi_cols_aligned_to_sb(cm->mi_cols), sizeof(*cm->above_seg_context));
146 if (!cm->above_seg_context) goto fail;
147
148 return 0;
149
150 fail:
151 vp9_free_context_buffers(cm);
152 return 1;
153 }
154
init_frame_bufs(VP9_COMMON * cm)155 static void init_frame_bufs(VP9_COMMON *cm) {
156 int i;
157
158 cm->new_fb_idx = FRAME_BUFFERS - 1;
159 cm->frame_bufs[cm->new_fb_idx].ref_count = 1;
160
161 for (i = 0; i < REF_FRAMES; ++i) {
162 cm->ref_frame_map[i] = i;
163 cm->frame_bufs[i].ref_count = 1;
164 }
165 }
166
vp9_alloc_ref_frame_buffers(VP9_COMMON * cm,int width,int height)167 int vp9_alloc_ref_frame_buffers(VP9_COMMON *cm, int width, int height) {
168 int i;
169 const int ss_x = cm->subsampling_x;
170 const int ss_y = cm->subsampling_y;
171
172 vp9_free_ref_frame_buffers(cm);
173
174 for (i = 0; i < FRAME_BUFFERS; ++i) {
175 cm->frame_bufs[i].ref_count = 0;
176 if (vp9_alloc_frame_buffer(&cm->frame_bufs[i].buf, width, height,
177 ss_x, ss_y, VP9_ENC_BORDER_IN_PIXELS) < 0)
178 goto fail;
179 }
180
181 init_frame_bufs(cm);
182
183 #if CONFIG_INTERNAL_STATS || CONFIG_VP9_POSTPROC
184 if (vp9_alloc_frame_buffer(&cm->post_proc_buffer, width, height, ss_x, ss_y,
185 VP9_ENC_BORDER_IN_PIXELS) < 0)
186 goto fail;
187 #endif
188
189 return 0;
190
191 fail:
192 vp9_free_ref_frame_buffers(cm);
193 return 1;
194 }
195
vp9_remove_common(VP9_COMMON * cm)196 void vp9_remove_common(VP9_COMMON *cm) {
197 vp9_free_ref_frame_buffers(cm);
198 vp9_free_context_buffers(cm);
199 vp9_free_internal_frame_buffers(&cm->int_frame_buffers);
200 }
201
vp9_init_context_buffers(VP9_COMMON * cm)202 void vp9_init_context_buffers(VP9_COMMON *cm) {
203 setup_mi(cm);
204 if (cm->last_frame_seg_map)
205 vpx_memset(cm->last_frame_seg_map, 0, cm->mi_rows * cm->mi_cols);
206 }
207
vp9_swap_mi_and_prev_mi(VP9_COMMON * cm)208 void vp9_swap_mi_and_prev_mi(VP9_COMMON *cm) {
209 // Swap indices.
210 const int tmp = cm->mi_idx;
211 cm->mi_idx = cm->prev_mi_idx;
212 cm->prev_mi_idx = tmp;
213
214 // Current mip will be the prev_mip for the next frame.
215 cm->mip = cm->mip_array[cm->mi_idx];
216 cm->prev_mip = cm->mip_array[cm->prev_mi_idx];
217 cm->mi_grid_base = cm->mi_grid_base_array[cm->mi_idx];
218 cm->prev_mi_grid_base = cm->mi_grid_base_array[cm->prev_mi_idx];
219
220 // Update the upper left visible macroblock ptrs.
221 cm->mi = cm->mip + cm->mi_stride + 1;
222 cm->prev_mi = cm->prev_mip + cm->mi_stride + 1;
223 cm->mi_grid_visible = cm->mi_grid_base + cm->mi_stride + 1;
224 cm->prev_mi_grid_visible = cm->prev_mi_grid_base + cm->mi_stride + 1;
225 }
226