ref: 4fec4a8e288cebeb265996e54d2cb4cd000bb38b
dir: /vp10/common/alloccommon.c/
/* * Copyright (c) 2010 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include "./vpx_config.h" #include "vpx_mem/vpx_mem.h" #include "vp10/common/alloccommon.h" #include "vp10/common/blockd.h" #include "vp10/common/entropymode.h" #include "vp10/common/entropymv.h" #include "vp10/common/onyxc_int.h" void vp10_set_mb_mi(VP10_COMMON *cm, int width, int height) { const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2); const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2); cm->mi_cols = aligned_width >> MI_SIZE_LOG2; cm->mi_rows = aligned_height >> MI_SIZE_LOG2; cm->mi_stride = calc_mi_size(cm->mi_cols); cm->mb_cols = (cm->mi_cols + 1) >> 1; cm->mb_rows = (cm->mi_rows + 1) >> 1; cm->MBs = cm->mb_rows * cm->mb_cols; } static int alloc_seg_map(VP10_COMMON *cm, int seg_map_size) { int i; for (i = 0; i < NUM_PING_PONG_BUFFERS; ++i) { cm->seg_map_array[i] = (uint8_t *)vpx_calloc(seg_map_size, 1); if (cm->seg_map_array[i] == NULL) return 1; } cm->seg_map_alloc_size = seg_map_size; // Init the index. cm->seg_map_idx = 0; cm->prev_seg_map_idx = 1; cm->current_frame_seg_map = cm->seg_map_array[cm->seg_map_idx]; if (!cm->frame_parallel_decode) cm->last_frame_seg_map = cm->seg_map_array[cm->prev_seg_map_idx]; return 0; } static void free_seg_map(VP10_COMMON *cm) { int i; for (i = 0; i < NUM_PING_PONG_BUFFERS; ++i) { vpx_free(cm->seg_map_array[i]); cm->seg_map_array[i] = NULL; } cm->current_frame_seg_map = NULL; if (!cm->frame_parallel_decode) { cm->last_frame_seg_map = NULL; } } void vp10_free_ref_frame_buffers(BufferPool *pool) { int i; for (i = 0; i < FRAME_BUFFERS; ++i) { if (pool->frame_bufs[i].ref_count > 0 && pool->frame_bufs[i].raw_frame_buffer.data != NULL) { pool->release_fb_cb(pool->cb_priv, &pool->frame_bufs[i].raw_frame_buffer); pool->frame_bufs[i].ref_count = 0; } vpx_free(pool->frame_bufs[i].mvs); pool->frame_bufs[i].mvs = NULL; vpx_free_frame_buffer(&pool->frame_bufs[i].buf); } } void vp10_free_postproc_buffers(VP10_COMMON *cm) { #if CONFIG_VP9_POSTPROC vpx_free_frame_buffer(&cm->post_proc_buffer); vpx_free_frame_buffer(&cm->post_proc_buffer_int); #else (void)cm; #endif } void vp10_free_context_buffers(VP10_COMMON *cm) { cm->free_mi(cm); free_seg_map(cm); vpx_free(cm->above_context); cm->above_context = NULL; vpx_free(cm->above_seg_context); cm->above_seg_context = NULL; } int vp10_alloc_context_buffers(VP10_COMMON *cm, int width, int height) { int new_mi_size; vp10_set_mb_mi(cm, width, height); new_mi_size = cm->mi_stride * calc_mi_size(cm->mi_rows); if (cm->mi_alloc_size < new_mi_size) { cm->free_mi(cm); if (cm->alloc_mi(cm, new_mi_size)) goto fail; } if (cm->seg_map_alloc_size < cm->mi_rows * cm->mi_cols) { // Create the segmentation map structure and set to 0. free_seg_map(cm); if (alloc_seg_map(cm, cm->mi_rows * cm->mi_cols)) goto fail; } if (cm->above_context_alloc_cols < cm->mi_cols) { vpx_free(cm->above_context); cm->above_context = (ENTROPY_CONTEXT *)vpx_calloc( 2 * mi_cols_aligned_to_sb(cm->mi_cols) * MAX_MB_PLANE, sizeof(*cm->above_context)); if (!cm->above_context) goto fail; vpx_free(cm->above_seg_context); cm->above_seg_context = (PARTITION_CONTEXT *)vpx_calloc( mi_cols_aligned_to_sb(cm->mi_cols), sizeof(*cm->above_seg_context)); if (!cm->above_seg_context) goto fail; cm->above_context_alloc_cols = cm->mi_cols; } return 0; fail: vp10_free_context_buffers(cm); return 1; } void vp10_remove_common(VP10_COMMON *cm) { vp10_free_context_buffers(cm); vpx_free(cm->fc); cm->fc = NULL; vpx_free(cm->frame_contexts); cm->frame_contexts = NULL; } void vp10_init_context_buffers(VP10_COMMON *cm) { cm->setup_mi(cm); if (cm->last_frame_seg_map && !cm->frame_parallel_decode) memset(cm->last_frame_seg_map, 0, cm->mi_rows * cm->mi_cols); } void vp10_swap_current_and_last_seg_map(VP10_COMMON *cm) { // Swap indices. const int tmp = cm->seg_map_idx; cm->seg_map_idx = cm->prev_seg_map_idx; cm->prev_seg_map_idx = tmp; cm->current_frame_seg_map = cm->seg_map_array[cm->seg_map_idx]; cm->last_frame_seg_map = cm->seg_map_array[cm->prev_seg_map_idx]; }