diff options
Diffstat (limited to 'third_party/aom/av1/common/tile_common.c')
| -rw-r--r-- | third_party/aom/av1/common/tile_common.c | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/third_party/aom/av1/common/tile_common.c b/third_party/aom/av1/common/tile_common.c deleted file mode 100644 index 1b413487f..000000000 --- a/third_party/aom/av1/common/tile_common.c +++ /dev/null @@ -1,207 +0,0 @@ -/* - * 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 "av1/common/resize.h" -#include "aom_dsp/aom_dsp_common.h" - -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); -} - -// Find smallest k>=0 such that (blk_size << k) >= target -static int tile_log2(int blk_size, int target) { - int k; - for (k = 0; (blk_size << k) < target; k++) { - } - return k; -} - -void av1_get_tile_limits(AV1_COMMON *const cm) { - int mi_cols = ALIGN_POWER_OF_TWO(cm->mi_cols, cm->seq_params.mib_size_log2); - int mi_rows = ALIGN_POWER_OF_TWO(cm->mi_rows, cm->seq_params.mib_size_log2); - int sb_cols = mi_cols >> cm->seq_params.mib_size_log2; - int sb_rows = mi_rows >> cm->seq_params.mib_size_log2; - - int sb_size_log2 = cm->seq_params.mib_size_log2 + MI_SIZE_LOG2; - cm->max_tile_width_sb = MAX_TILE_WIDTH >> sb_size_log2; - int max_tile_area_sb = MAX_TILE_AREA >> (2 * sb_size_log2); - - cm->min_log2_tile_cols = tile_log2(cm->max_tile_width_sb, sb_cols); - cm->max_log2_tile_cols = tile_log2(1, AOMMIN(sb_cols, MAX_TILE_COLS)); - cm->max_log2_tile_rows = tile_log2(1, AOMMIN(sb_rows, MAX_TILE_ROWS)); - cm->min_log2_tiles = tile_log2(max_tile_area_sb, sb_cols * sb_rows); - cm->min_log2_tiles = AOMMAX(cm->min_log2_tiles, cm->min_log2_tile_cols); -} - -void av1_calculate_tile_cols(AV1_COMMON *const cm) { - int mi_cols = ALIGN_POWER_OF_TWO(cm->mi_cols, cm->seq_params.mib_size_log2); - int mi_rows = ALIGN_POWER_OF_TWO(cm->mi_rows, cm->seq_params.mib_size_log2); - int sb_cols = mi_cols >> cm->seq_params.mib_size_log2; - int sb_rows = mi_rows >> cm->seq_params.mib_size_log2; - int i; - - if (cm->uniform_tile_spacing_flag) { - int start_sb; - int size_sb = ALIGN_POWER_OF_TWO(sb_cols, cm->log2_tile_cols); - size_sb >>= cm->log2_tile_cols; - assert(size_sb > 0); - for (i = 0, start_sb = 0; start_sb < sb_cols; i++) { - cm->tile_col_start_sb[i] = start_sb; - start_sb += size_sb; - } - cm->tile_cols = i; - cm->tile_col_start_sb[i] = sb_cols; - cm->min_log2_tile_rows = AOMMAX(cm->min_log2_tiles - cm->log2_tile_cols, 0); - cm->max_tile_height_sb = sb_rows >> cm->min_log2_tile_rows; - - cm->tile_width = size_sb << cm->seq_params.mib_size_log2; - cm->tile_width = AOMMIN(cm->tile_width, cm->mi_cols); - } else { - int max_tile_area_sb = (sb_rows * sb_cols); - int widest_tile_sb = 1; - cm->log2_tile_cols = tile_log2(1, cm->tile_cols); - for (i = 0; i < cm->tile_cols; i++) { - int size_sb = cm->tile_col_start_sb[i + 1] - cm->tile_col_start_sb[i]; - widest_tile_sb = AOMMAX(widest_tile_sb, size_sb); - } - if (cm->min_log2_tiles) { - max_tile_area_sb >>= (cm->min_log2_tiles + 1); - } - cm->max_tile_height_sb = AOMMAX(max_tile_area_sb / widest_tile_sb, 1); - } -} - -void av1_calculate_tile_rows(AV1_COMMON *const cm) { - int mi_rows = ALIGN_POWER_OF_TWO(cm->mi_rows, cm->seq_params.mib_size_log2); - int sb_rows = mi_rows >> cm->seq_params.mib_size_log2; - int start_sb, size_sb, i; - - if (cm->uniform_tile_spacing_flag) { - size_sb = ALIGN_POWER_OF_TWO(sb_rows, cm->log2_tile_rows); - size_sb >>= cm->log2_tile_rows; - assert(size_sb > 0); - for (i = 0, start_sb = 0; start_sb < sb_rows; i++) { - cm->tile_row_start_sb[i] = start_sb; - start_sb += size_sb; - } - cm->tile_rows = i; - cm->tile_row_start_sb[i] = sb_rows; - - cm->tile_height = size_sb << cm->seq_params.mib_size_log2; - cm->tile_height = AOMMIN(cm->tile_height, cm->mi_rows); - } else { - cm->log2_tile_rows = tile_log2(1, cm->tile_rows); - } -} - -void av1_tile_set_row(TileInfo *tile, const AV1_COMMON *cm, int row) { - assert(row < cm->tile_rows); - int mi_row_start = cm->tile_row_start_sb[row] << cm->seq_params.mib_size_log2; - int mi_row_end = cm->tile_row_start_sb[row + 1] - << cm->seq_params.mib_size_log2; - tile->tile_row = row; - tile->mi_row_start = mi_row_start; - tile->mi_row_end = AOMMIN(mi_row_end, cm->mi_rows); - assert(tile->mi_row_end > tile->mi_row_start); -} - -void av1_tile_set_col(TileInfo *tile, const AV1_COMMON *cm, int col) { - assert(col < cm->tile_cols); - int mi_col_start = cm->tile_col_start_sb[col] << cm->seq_params.mib_size_log2; - int mi_col_end = cm->tile_col_start_sb[col + 1] - << cm->seq_params.mib_size_log2; - tile->tile_col = col; - tile->mi_col_start = mi_col_start; - tile->mi_col_end = AOMMIN(mi_col_end, cm->mi_cols); - assert(tile->mi_col_end > tile->mi_col_start); -} - -int av1_get_sb_rows_in_tile(AV1_COMMON *cm, TileInfo tile) { - int mi_rows_aligned_to_sb = ALIGN_POWER_OF_TWO( - tile.mi_row_end - tile.mi_row_start, cm->seq_params.mib_size_log2); - int sb_rows = mi_rows_aligned_to_sb >> cm->seq_params.mib_size_log2; - - return sb_rows; -} - -int av1_get_sb_cols_in_tile(AV1_COMMON *cm, TileInfo tile) { - int mi_cols_aligned_to_sb = ALIGN_POWER_OF_TWO( - tile.mi_col_end - tile.mi_col_start, cm->seq_params.mib_size_log2); - int sb_cols = mi_cols_aligned_to_sb >> cm->seq_params.mib_size_log2; - - return sb_cols; -} - -int get_tile_size(int mi_frame_size, int log2_tile_num, int *ntiles) { - // Round the frame up to a whole number of max superblocks - mi_frame_size = ALIGN_POWER_OF_TWO(mi_frame_size, MAX_MIB_SIZE_LOG2); - - // Divide by the signalled number of tiles, rounding up to the multiple of - // the max superblock size. To do this, shift right (and round up) to get the - // tile size in max super-blocks and then shift left again to convert it to - // mi units. - const int shift = log2_tile_num + MAX_MIB_SIZE_LOG2; - const int max_sb_tile_size = - ALIGN_POWER_OF_TWO(mi_frame_size, shift) >> shift; - const int mi_tile_size = max_sb_tile_size << MAX_MIB_SIZE_LOG2; - - // The actual number of tiles is the ceiling of the frame size in mi units - // divided by mi_size. This is at most 1 << log2_tile_num but might be - // strictly less if max_sb_tile_size got rounded up significantly. - if (ntiles) { - *ntiles = (mi_frame_size + mi_tile_size - 1) / mi_tile_size; - assert(*ntiles <= (1 << log2_tile_num)); - } - - return mi_tile_size; -} - -AV1PixelRect av1_get_tile_rect(const TileInfo *tile_info, const AV1_COMMON *cm, - int is_uv) { - AV1PixelRect r; - - // Calculate position in the Y plane - r.left = tile_info->mi_col_start * MI_SIZE; - r.right = tile_info->mi_col_end * MI_SIZE; - r.top = tile_info->mi_row_start * MI_SIZE; - r.bottom = tile_info->mi_row_end * MI_SIZE; - - // If upscaling is enabled, the tile limits need scaling to match the - // upscaled frame where the restoration units live. To do this, scale up the - // top-left and bottom-right of the tile. - if (av1_superres_scaled(cm)) { - av1_calculate_unscaled_superres_size(&r.left, &r.top, - cm->superres_scale_denominator); - av1_calculate_unscaled_superres_size(&r.right, &r.bottom, - cm->superres_scale_denominator); - } - - const int frame_w = cm->superres_upscaled_width; - const int frame_h = cm->superres_upscaled_height; - - // Make sure we don't fall off the bottom-right of the frame. - r.right = AOMMIN(r.right, frame_w); - r.bottom = AOMMIN(r.bottom, frame_h); - - // Convert to coordinates in the appropriate plane - const int ss_x = is_uv && cm->seq_params.subsampling_x; - const int ss_y = is_uv && cm->seq_params.subsampling_y; - - r.left = ROUND_POWER_OF_TWO(r.left, ss_x); - r.right = ROUND_POWER_OF_TWO(r.right, ss_x); - r.top = ROUND_POWER_OF_TWO(r.top, ss_y); - r.bottom = ROUND_POWER_OF_TWO(r.bottom, ss_y); - - return r; -} |