| /* |
| * 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 "vp10/common/tile_common.h" |
| #include "vp10/common/onyxc_int.h" |
| #include "vpx_dsp/vpx_dsp_common.h" |
| |
| void vp10_tile_set_row(TileInfo *tile, const VP10_COMMON *cm, int row) { |
| tile->mi_row_start = row * cm->tile_height; |
| tile->mi_row_end = VPXMIN(tile->mi_row_start + cm->tile_height, |
| cm->mi_rows); |
| } |
| |
| void vp10_tile_set_col(TileInfo *tile, const VP10_COMMON *cm, int col) { |
| tile->mi_col_start = col * cm->tile_width; |
| tile->mi_col_end = VPXMIN(tile->mi_col_start + cm->tile_width, |
| cm->mi_cols); |
| } |
| |
| void vp10_tile_init(TileInfo *tile, const VP10_COMMON *cm, int row, int col) { |
| vp10_tile_set_row(tile, cm, row); |
| vp10_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 vp10_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 |