michael@0: /*
michael@0:  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
michael@0:  *
michael@0:  *  Use of this source code is governed by a BSD-style license
michael@0:  *  that can be found in the LICENSE file in the root of the source
michael@0:  *  tree. An additional intellectual property rights grant can be found
michael@0:  *  in the file PATENTS.  All contributing project authors may
michael@0:  *  be found in the AUTHORS file in the root of the source tree.
michael@0:  */
michael@0: 
michael@0: 
michael@0: #include "./vpx_config.h"
michael@0: #include "vpx_mem/vpx_mem.h"
michael@0: 
michael@0: #include "vp9/common/vp9_blockd.h"
michael@0: #include "vp9/common/vp9_entropymode.h"
michael@0: #include "vp9/common/vp9_entropymv.h"
michael@0: #include "vp9/common/vp9_findnearmv.h"
michael@0: #include "vp9/common/vp9_onyxc_int.h"
michael@0: #include "vp9/common/vp9_systemdependent.h"
michael@0: 
michael@0: void vp9_update_mode_info_border(VP9_COMMON *cm, MODE_INFO *mi) {
michael@0:   const int stride = cm->mode_info_stride;
michael@0:   int i;
michael@0: 
michael@0:   // Clear down top border row
michael@0:   vpx_memset(mi, 0, sizeof(MODE_INFO) * stride);
michael@0: 
michael@0:   // Clear left border column
michael@0:   for (i = 1; i < cm->mi_rows + 1; i++)
michael@0:     vpx_memset(&mi[i * stride], 0, sizeof(MODE_INFO));
michael@0: }
michael@0: 
michael@0: void vp9_free_frame_buffers(VP9_COMMON *cm) {
michael@0:   int i;
michael@0: 
michael@0:   for (i = 0; i < NUM_YV12_BUFFERS; i++)
michael@0:     vp9_free_frame_buffer(&cm->yv12_fb[i]);
michael@0: 
michael@0:   vp9_free_frame_buffer(&cm->post_proc_buffer);
michael@0: 
michael@0:   vpx_free(cm->mip);
michael@0:   vpx_free(cm->prev_mip);
michael@0:   vpx_free(cm->last_frame_seg_map);
michael@0:   vpx_free(cm->mi_grid_base);
michael@0:   vpx_free(cm->prev_mi_grid_base);
michael@0: 
michael@0:   cm->mip = NULL;
michael@0:   cm->prev_mip = NULL;
michael@0:   cm->last_frame_seg_map = NULL;
michael@0:   cm->mi_grid_base = NULL;
michael@0:   cm->prev_mi_grid_base = NULL;
michael@0: }
michael@0: 
michael@0: static void set_mb_mi(VP9_COMMON *cm, int aligned_width, int aligned_height) {
michael@0:   cm->mi_cols = aligned_width >> MI_SIZE_LOG2;
michael@0:   cm->mi_rows = aligned_height >> MI_SIZE_LOG2;
michael@0:   cm->mode_info_stride = cm->mi_cols + MI_BLOCK_SIZE;
michael@0: 
michael@0:   cm->mb_cols = (cm->mi_cols + 1) >> 1;
michael@0:   cm->mb_rows = (cm->mi_rows + 1) >> 1;
michael@0:   cm->MBs = cm->mb_rows * cm->mb_cols;
michael@0: }
michael@0: 
michael@0: static void setup_mi(VP9_COMMON *cm) {
michael@0:   cm->mi = cm->mip + cm->mode_info_stride + 1;
michael@0:   cm->prev_mi = cm->prev_mip + cm->mode_info_stride + 1;
michael@0:   cm->mi_grid_visible = cm->mi_grid_base + cm->mode_info_stride + 1;
michael@0:   cm->prev_mi_grid_visible = cm->prev_mi_grid_base + cm->mode_info_stride + 1;
michael@0: 
michael@0:   vpx_memset(cm->mip, 0,
michael@0:              cm->mode_info_stride * (cm->mi_rows + 1) * sizeof(MODE_INFO));
michael@0: 
michael@0:   vpx_memset(cm->mi_grid_base, 0,
michael@0:              cm->mode_info_stride * (cm->mi_rows + 1) *
michael@0:              sizeof(*cm->mi_grid_base));
michael@0: 
michael@0:   vp9_update_mode_info_border(cm, cm->mip);
michael@0:   vp9_update_mode_info_border(cm, cm->prev_mip);
michael@0: }
michael@0: 
michael@0: int vp9_resize_frame_buffers(VP9_COMMON *cm, int width, int height) {
michael@0:   const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2);
michael@0:   const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2);
michael@0:   const int ss_x = cm->subsampling_x;
michael@0:   const int ss_y = cm->subsampling_y;
michael@0:   int mi_size;
michael@0: 
michael@0:   if (vp9_realloc_frame_buffer(&cm->post_proc_buffer, width, height, ss_x, ss_y,
michael@0:                              VP9BORDERINPIXELS) < 0)
michael@0:     goto fail;
michael@0: 
michael@0:   set_mb_mi(cm, aligned_width, aligned_height);
michael@0: 
michael@0:   // Allocation
michael@0:   mi_size = cm->mode_info_stride * (cm->mi_rows + MI_BLOCK_SIZE);
michael@0: 
michael@0:   vpx_free(cm->mip);
michael@0:   cm->mip = vpx_calloc(mi_size, sizeof(MODE_INFO));
michael@0:   if (!cm->mip)
michael@0:     goto fail;
michael@0: 
michael@0:   vpx_free(cm->prev_mip);
michael@0:   cm->prev_mip = vpx_calloc(mi_size, sizeof(MODE_INFO));
michael@0:   if (!cm->prev_mip)
michael@0:     goto fail;
michael@0: 
michael@0:   vpx_free(cm->mi_grid_base);
michael@0:   cm->mi_grid_base = vpx_calloc(mi_size, sizeof(*cm->mi_grid_base));
michael@0:   if (!cm->mi_grid_base)
michael@0:     goto fail;
michael@0: 
michael@0:   vpx_free(cm->prev_mi_grid_base);
michael@0:   cm->prev_mi_grid_base = vpx_calloc(mi_size, sizeof(*cm->prev_mi_grid_base));
michael@0:   if (!cm->prev_mi_grid_base)
michael@0:     goto fail;
michael@0: 
michael@0:   setup_mi(cm);
michael@0: 
michael@0:   // Create the segmentation map structure and set to 0.
michael@0:   vpx_free(cm->last_frame_seg_map);
michael@0:   cm->last_frame_seg_map = vpx_calloc(cm->mi_rows * cm->mi_cols, 1);
michael@0:   if (!cm->last_frame_seg_map)
michael@0:     goto fail;
michael@0: 
michael@0:   return 0;
michael@0: 
michael@0:  fail:
michael@0:   vp9_free_frame_buffers(cm);
michael@0:   return 1;
michael@0: }
michael@0: 
michael@0: int vp9_alloc_frame_buffers(VP9_COMMON *cm, int width, int height) {
michael@0:   int i;
michael@0: 
michael@0:   const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2);
michael@0:   const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2);
michael@0:   const int ss_x = cm->subsampling_x;
michael@0:   const int ss_y = cm->subsampling_y;
michael@0:   int mi_size;
michael@0: 
michael@0:   vp9_free_frame_buffers(cm);
michael@0: 
michael@0:   for (i = 0; i < NUM_YV12_BUFFERS; i++) {
michael@0:     cm->fb_idx_ref_cnt[i] = 0;
michael@0:     if (vp9_alloc_frame_buffer(&cm->yv12_fb[i], width, height, ss_x, ss_y,
michael@0:                                VP9BORDERINPIXELS) < 0)
michael@0:       goto fail;
michael@0:   }
michael@0: 
michael@0:   cm->new_fb_idx = NUM_YV12_BUFFERS - 1;
michael@0:   cm->fb_idx_ref_cnt[cm->new_fb_idx] = 1;
michael@0: 
michael@0:   for (i = 0; i < ALLOWED_REFS_PER_FRAME; i++)
michael@0:     cm->active_ref_idx[i] = i;
michael@0: 
michael@0:   for (i = 0; i < NUM_REF_FRAMES; i++) {
michael@0:     cm->ref_frame_map[i] = i;
michael@0:     cm->fb_idx_ref_cnt[i] = 1;
michael@0:   }
michael@0: 
michael@0:   if (vp9_alloc_frame_buffer(&cm->post_proc_buffer, width, height, ss_x, ss_y,
michael@0:                              VP9BORDERINPIXELS) < 0)
michael@0:     goto fail;
michael@0: 
michael@0:   set_mb_mi(cm, aligned_width, aligned_height);
michael@0: 
michael@0:   // Allocation
michael@0:   mi_size = cm->mode_info_stride * (cm->mi_rows + MI_BLOCK_SIZE);
michael@0: 
michael@0:   cm->mip = vpx_calloc(mi_size, sizeof(MODE_INFO));
michael@0:   if (!cm->mip)
michael@0:     goto fail;
michael@0: 
michael@0:   cm->prev_mip = vpx_calloc(mi_size, sizeof(MODE_INFO));
michael@0:   if (!cm->prev_mip)
michael@0:     goto fail;
michael@0: 
michael@0:   cm->mi_grid_base = vpx_calloc(mi_size, sizeof(*cm->mi_grid_base));
michael@0:   if (!cm->mi_grid_base)
michael@0:     goto fail;
michael@0: 
michael@0:   cm->prev_mi_grid_base = vpx_calloc(mi_size, sizeof(*cm->prev_mi_grid_base));
michael@0:   if (!cm->prev_mi_grid_base)
michael@0:     goto fail;
michael@0: 
michael@0:   setup_mi(cm);
michael@0: 
michael@0:   // Create the segmentation map structure and set to 0.
michael@0:   cm->last_frame_seg_map = vpx_calloc(cm->mi_rows * cm->mi_cols, 1);
michael@0:   if (!cm->last_frame_seg_map)
michael@0:     goto fail;
michael@0: 
michael@0:   return 0;
michael@0: 
michael@0:  fail:
michael@0:   vp9_free_frame_buffers(cm);
michael@0:   return 1;
michael@0: }
michael@0: 
michael@0: void vp9_create_common(VP9_COMMON *cm) {
michael@0:   vp9_machine_specific_config(cm);
michael@0: 
michael@0:   cm->tx_mode = ONLY_4X4;
michael@0:   cm->comp_pred_mode = HYBRID_PREDICTION;
michael@0: }
michael@0: 
michael@0: void vp9_remove_common(VP9_COMMON *cm) {
michael@0:   vp9_free_frame_buffers(cm);
michael@0: }
michael@0: 
michael@0: void vp9_initialize_common() {
michael@0:   vp9_init_neighbors();
michael@0:   vp9_coef_tree_initialize();
michael@0:   vp9_entropy_mode_init();
michael@0:   vp9_entropy_mv_init();
michael@0: }
michael@0: 
michael@0: void vp9_update_frame_size(VP9_COMMON *cm) {
michael@0:   const int aligned_width = ALIGN_POWER_OF_TWO(cm->width, MI_SIZE_LOG2);
michael@0:   const int aligned_height = ALIGN_POWER_OF_TWO(cm->height, MI_SIZE_LOG2);
michael@0: 
michael@0:   set_mb_mi(cm, aligned_width, aligned_height);
michael@0:   setup_mi(cm);
michael@0: 
michael@0:   // Initialize the previous frame segment map to 0.
michael@0:   if (cm->last_frame_seg_map)
michael@0:     vpx_memset(cm->last_frame_seg_map, 0, cm->mi_rows * cm->mi_cols);
michael@0: }