1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libvpx/vp9/common/vp9_alloccommon.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,229 @@
1.4 +/*
1.5 + * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license
1.8 + * that can be found in the LICENSE file in the root of the source
1.9 + * tree. An additional intellectual property rights grant can be found
1.10 + * in the file PATENTS. All contributing project authors may
1.11 + * be found in the AUTHORS file in the root of the source tree.
1.12 + */
1.13 +
1.14 +
1.15 +#include "./vpx_config.h"
1.16 +#include "vpx_mem/vpx_mem.h"
1.17 +
1.18 +#include "vp9/common/vp9_blockd.h"
1.19 +#include "vp9/common/vp9_entropymode.h"
1.20 +#include "vp9/common/vp9_entropymv.h"
1.21 +#include "vp9/common/vp9_findnearmv.h"
1.22 +#include "vp9/common/vp9_onyxc_int.h"
1.23 +#include "vp9/common/vp9_systemdependent.h"
1.24 +
1.25 +void vp9_update_mode_info_border(VP9_COMMON *cm, MODE_INFO *mi) {
1.26 + const int stride = cm->mode_info_stride;
1.27 + int i;
1.28 +
1.29 + // Clear down top border row
1.30 + vpx_memset(mi, 0, sizeof(MODE_INFO) * stride);
1.31 +
1.32 + // Clear left border column
1.33 + for (i = 1; i < cm->mi_rows + 1; i++)
1.34 + vpx_memset(&mi[i * stride], 0, sizeof(MODE_INFO));
1.35 +}
1.36 +
1.37 +void vp9_free_frame_buffers(VP9_COMMON *cm) {
1.38 + int i;
1.39 +
1.40 + for (i = 0; i < NUM_YV12_BUFFERS; i++)
1.41 + vp9_free_frame_buffer(&cm->yv12_fb[i]);
1.42 +
1.43 + vp9_free_frame_buffer(&cm->post_proc_buffer);
1.44 +
1.45 + vpx_free(cm->mip);
1.46 + vpx_free(cm->prev_mip);
1.47 + vpx_free(cm->last_frame_seg_map);
1.48 + vpx_free(cm->mi_grid_base);
1.49 + vpx_free(cm->prev_mi_grid_base);
1.50 +
1.51 + cm->mip = NULL;
1.52 + cm->prev_mip = NULL;
1.53 + cm->last_frame_seg_map = NULL;
1.54 + cm->mi_grid_base = NULL;
1.55 + cm->prev_mi_grid_base = NULL;
1.56 +}
1.57 +
1.58 +static void set_mb_mi(VP9_COMMON *cm, int aligned_width, int aligned_height) {
1.59 + cm->mi_cols = aligned_width >> MI_SIZE_LOG2;
1.60 + cm->mi_rows = aligned_height >> MI_SIZE_LOG2;
1.61 + cm->mode_info_stride = cm->mi_cols + MI_BLOCK_SIZE;
1.62 +
1.63 + cm->mb_cols = (cm->mi_cols + 1) >> 1;
1.64 + cm->mb_rows = (cm->mi_rows + 1) >> 1;
1.65 + cm->MBs = cm->mb_rows * cm->mb_cols;
1.66 +}
1.67 +
1.68 +static void setup_mi(VP9_COMMON *cm) {
1.69 + cm->mi = cm->mip + cm->mode_info_stride + 1;
1.70 + cm->prev_mi = cm->prev_mip + cm->mode_info_stride + 1;
1.71 + cm->mi_grid_visible = cm->mi_grid_base + cm->mode_info_stride + 1;
1.72 + cm->prev_mi_grid_visible = cm->prev_mi_grid_base + cm->mode_info_stride + 1;
1.73 +
1.74 + vpx_memset(cm->mip, 0,
1.75 + cm->mode_info_stride * (cm->mi_rows + 1) * sizeof(MODE_INFO));
1.76 +
1.77 + vpx_memset(cm->mi_grid_base, 0,
1.78 + cm->mode_info_stride * (cm->mi_rows + 1) *
1.79 + sizeof(*cm->mi_grid_base));
1.80 +
1.81 + vp9_update_mode_info_border(cm, cm->mip);
1.82 + vp9_update_mode_info_border(cm, cm->prev_mip);
1.83 +}
1.84 +
1.85 +int vp9_resize_frame_buffers(VP9_COMMON *cm, int width, int height) {
1.86 + const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2);
1.87 + const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2);
1.88 + const int ss_x = cm->subsampling_x;
1.89 + const int ss_y = cm->subsampling_y;
1.90 + int mi_size;
1.91 +
1.92 + if (vp9_realloc_frame_buffer(&cm->post_proc_buffer, width, height, ss_x, ss_y,
1.93 + VP9BORDERINPIXELS) < 0)
1.94 + goto fail;
1.95 +
1.96 + set_mb_mi(cm, aligned_width, aligned_height);
1.97 +
1.98 + // Allocation
1.99 + mi_size = cm->mode_info_stride * (cm->mi_rows + MI_BLOCK_SIZE);
1.100 +
1.101 + vpx_free(cm->mip);
1.102 + cm->mip = vpx_calloc(mi_size, sizeof(MODE_INFO));
1.103 + if (!cm->mip)
1.104 + goto fail;
1.105 +
1.106 + vpx_free(cm->prev_mip);
1.107 + cm->prev_mip = vpx_calloc(mi_size, sizeof(MODE_INFO));
1.108 + if (!cm->prev_mip)
1.109 + goto fail;
1.110 +
1.111 + vpx_free(cm->mi_grid_base);
1.112 + cm->mi_grid_base = vpx_calloc(mi_size, sizeof(*cm->mi_grid_base));
1.113 + if (!cm->mi_grid_base)
1.114 + goto fail;
1.115 +
1.116 + vpx_free(cm->prev_mi_grid_base);
1.117 + cm->prev_mi_grid_base = vpx_calloc(mi_size, sizeof(*cm->prev_mi_grid_base));
1.118 + if (!cm->prev_mi_grid_base)
1.119 + goto fail;
1.120 +
1.121 + setup_mi(cm);
1.122 +
1.123 + // Create the segmentation map structure and set to 0.
1.124 + vpx_free(cm->last_frame_seg_map);
1.125 + cm->last_frame_seg_map = vpx_calloc(cm->mi_rows * cm->mi_cols, 1);
1.126 + if (!cm->last_frame_seg_map)
1.127 + goto fail;
1.128 +
1.129 + return 0;
1.130 +
1.131 + fail:
1.132 + vp9_free_frame_buffers(cm);
1.133 + return 1;
1.134 +}
1.135 +
1.136 +int vp9_alloc_frame_buffers(VP9_COMMON *cm, int width, int height) {
1.137 + int i;
1.138 +
1.139 + const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2);
1.140 + const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2);
1.141 + const int ss_x = cm->subsampling_x;
1.142 + const int ss_y = cm->subsampling_y;
1.143 + int mi_size;
1.144 +
1.145 + vp9_free_frame_buffers(cm);
1.146 +
1.147 + for (i = 0; i < NUM_YV12_BUFFERS; i++) {
1.148 + cm->fb_idx_ref_cnt[i] = 0;
1.149 + if (vp9_alloc_frame_buffer(&cm->yv12_fb[i], width, height, ss_x, ss_y,
1.150 + VP9BORDERINPIXELS) < 0)
1.151 + goto fail;
1.152 + }
1.153 +
1.154 + cm->new_fb_idx = NUM_YV12_BUFFERS - 1;
1.155 + cm->fb_idx_ref_cnt[cm->new_fb_idx] = 1;
1.156 +
1.157 + for (i = 0; i < ALLOWED_REFS_PER_FRAME; i++)
1.158 + cm->active_ref_idx[i] = i;
1.159 +
1.160 + for (i = 0; i < NUM_REF_FRAMES; i++) {
1.161 + cm->ref_frame_map[i] = i;
1.162 + cm->fb_idx_ref_cnt[i] = 1;
1.163 + }
1.164 +
1.165 + if (vp9_alloc_frame_buffer(&cm->post_proc_buffer, width, height, ss_x, ss_y,
1.166 + VP9BORDERINPIXELS) < 0)
1.167 + goto fail;
1.168 +
1.169 + set_mb_mi(cm, aligned_width, aligned_height);
1.170 +
1.171 + // Allocation
1.172 + mi_size = cm->mode_info_stride * (cm->mi_rows + MI_BLOCK_SIZE);
1.173 +
1.174 + cm->mip = vpx_calloc(mi_size, sizeof(MODE_INFO));
1.175 + if (!cm->mip)
1.176 + goto fail;
1.177 +
1.178 + cm->prev_mip = vpx_calloc(mi_size, sizeof(MODE_INFO));
1.179 + if (!cm->prev_mip)
1.180 + goto fail;
1.181 +
1.182 + cm->mi_grid_base = vpx_calloc(mi_size, sizeof(*cm->mi_grid_base));
1.183 + if (!cm->mi_grid_base)
1.184 + goto fail;
1.185 +
1.186 + cm->prev_mi_grid_base = vpx_calloc(mi_size, sizeof(*cm->prev_mi_grid_base));
1.187 + if (!cm->prev_mi_grid_base)
1.188 + goto fail;
1.189 +
1.190 + setup_mi(cm);
1.191 +
1.192 + // Create the segmentation map structure and set to 0.
1.193 + cm->last_frame_seg_map = vpx_calloc(cm->mi_rows * cm->mi_cols, 1);
1.194 + if (!cm->last_frame_seg_map)
1.195 + goto fail;
1.196 +
1.197 + return 0;
1.198 +
1.199 + fail:
1.200 + vp9_free_frame_buffers(cm);
1.201 + return 1;
1.202 +}
1.203 +
1.204 +void vp9_create_common(VP9_COMMON *cm) {
1.205 + vp9_machine_specific_config(cm);
1.206 +
1.207 + cm->tx_mode = ONLY_4X4;
1.208 + cm->comp_pred_mode = HYBRID_PREDICTION;
1.209 +}
1.210 +
1.211 +void vp9_remove_common(VP9_COMMON *cm) {
1.212 + vp9_free_frame_buffers(cm);
1.213 +}
1.214 +
1.215 +void vp9_initialize_common() {
1.216 + vp9_init_neighbors();
1.217 + vp9_coef_tree_initialize();
1.218 + vp9_entropy_mode_init();
1.219 + vp9_entropy_mv_init();
1.220 +}
1.221 +
1.222 +void vp9_update_frame_size(VP9_COMMON *cm) {
1.223 + const int aligned_width = ALIGN_POWER_OF_TWO(cm->width, MI_SIZE_LOG2);
1.224 + const int aligned_height = ALIGN_POWER_OF_TWO(cm->height, MI_SIZE_LOG2);
1.225 +
1.226 + set_mb_mi(cm, aligned_width, aligned_height);
1.227 + setup_mi(cm);
1.228 +
1.229 + // Initialize the previous frame segment map to 0.
1.230 + if (cm->last_frame_seg_map)
1.231 + vpx_memset(cm->last_frame_seg_map, 0, cm->mi_rows * cm->mi_cols);
1.232 +}
