/* * Copyright (c) 2016, Alliance for Open Media. All rights reserved * * This source code is subject to the terms of the BSD 2 Clause License and * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License * was not distributed with this source code in the LICENSE file, you can * obtain it at www.aomedia.org/license/software. If the Alliance for Open * Media Patent License 1.0 was not distributed with this source code in the * PATENTS file, you can obtain it at www.aomedia.org/license/patent. */ #include "av1/common/tile_common.h" #include "av1/common/onyxc_int.h" #include "aom_dsp/aom_dsp_common.h" void av1_tile_set_row(TileInfo *tile, const AV1_COMMON *cm, int row) { tile->mi_row_start = row * cm->tile_height; tile->mi_row_end = AOMMIN(tile->mi_row_start + cm->tile_height, cm->mi_rows); } void av1_tile_set_col(TileInfo *tile, const AV1_COMMON *cm, int col) { tile->mi_col_start = col * cm->tile_width; tile->mi_col_end = AOMMIN(tile->mi_col_start + cm->tile_width, cm->mi_cols); } void av1_tile_init(TileInfo *tile, const AV1_COMMON *cm, int row, int col) { av1_tile_set_row(tile, cm, row); av1_tile_set_col(tile, cm, col); } #if !CONFIG_EXT_TILE #if CONFIG_EXT_PARTITION #define MIN_TILE_WIDTH_MAX_SB 2 #define MAX_TILE_WIDTH_MAX_SB 32 #else #define MIN_TILE_WIDTH_MAX_SB 4 #define MAX_TILE_WIDTH_MAX_SB 64 #endif // CONFIG_EXT_PARTITION static int get_min_log2_tile_cols(const int max_sb_cols) { int min_log2 = 0; while ((MAX_TILE_WIDTH_MAX_SB << min_log2) < max_sb_cols) ++min_log2; return min_log2; } static int get_max_log2_tile_cols(const int max_sb_cols) { int max_log2 = 1; while ((max_sb_cols >> max_log2) >= MIN_TILE_WIDTH_MAX_SB) ++max_log2; return max_log2 - 1; } void av1_get_tile_n_bits(const int mi_cols, int *min_log2_tile_cols, int *max_log2_tile_cols) { const int max_sb_cols = ALIGN_POWER_OF_TWO(mi_cols, MAX_MIB_SIZE_LOG2) >> MAX_MIB_SIZE_LOG2; *min_log2_tile_cols = get_min_log2_tile_cols(max_sb_cols); *max_log2_tile_cols = get_max_log2_tile_cols(max_sb_cols); assert(*min_log2_tile_cols <= *max_log2_tile_cols); } #endif // !CONFIG_EXT_TILE