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/*
* 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);
}
#if CONFIG_DEPENDENT_HORZTILES && CONFIG_TILE_GROUPS
void av1_tile_set_tg_boundary(TileInfo *tile, const AV1_COMMON *const cm,
int row, int col) {
if (row < cm->tile_rows - 1) {
tile->tg_horz_boundary =
col >= cm->tile_group_start_col[row][col]
? (row == cm->tile_group_start_row[row][col] ? 1 : 0)
: (row == cm->tile_group_start_row[row + 1][col] ? 1 : 0);
} else {
assert(col >= cm->tile_group_start_col[row][col]);
tile->tg_horz_boundary =
(row == cm->tile_group_start_row[row][col] ? 1 : 0);
}
}
#endif
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_DEPENDENT_HORZTILES && CONFIG_TILE_GROUPS
av1_tile_set_tg_boundary(tile, cm, row, col);
#endif
}
#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(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(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(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
void av1_update_boundary_info(const struct AV1Common *cm,
const TileInfo *const tile_info, int mi_row,
int mi_col) {
int row, col;
for (row = mi_row; row < (mi_row + cm->mib_size); row++)
for (col = mi_col; col < (mi_col + cm->mib_size); col++) {
MODE_INFO *const mi = cm->mi + row * cm->mi_stride + col;
mi->mbmi.boundary_info = 0;
// If horizontal dependent tile is enabled, then the horizontal
// tile boundary is not treated as real tile boundary for loop
// filtering, only the horizontal tile group boundary is treated
// as tile boundary.
// Otherwise, tile group boundary is treated the same as tile boundary.
// Loop filtering operation is done based on the
// loopfilter_across_tiles_enabled flag for both tile boundary and tile
// group boundary.
if (cm->tile_cols * cm->tile_rows > 1) {
#if CONFIG_DEPENDENT_HORZTILES
#if CONFIG_TILE_GROUPS
if (row == tile_info->mi_row_start &&
(!cm->dependent_horz_tiles || tile_info->tg_horz_boundary))
#else
if (row == tile_info->mi_row_start && !cm->dependent_horz_tiles)
#endif // CONFIG_TILE_GROUPS
#else
if (row == tile_info->mi_row_start)
#endif // CONFIG_DEPENDENT_HORZTILES
mi->mbmi.boundary_info |= TILE_ABOVE_BOUNDARY;
if (col == tile_info->mi_col_start)
mi->mbmi.boundary_info |= TILE_LEFT_BOUNDARY;
if ((row + 1) >= tile_info->mi_row_end)
mi->mbmi.boundary_info |= TILE_BOTTOM_BOUNDARY;
if ((col + 1) >= tile_info->mi_col_end)
mi->mbmi.boundary_info |= TILE_RIGHT_BOUNDARY;
}
// Frame boundary is treated as tile boundary
if (row == 0)
mi->mbmi.boundary_info |= FRAME_ABOVE_BOUNDARY | TILE_ABOVE_BOUNDARY;
if (col == 0)
mi->mbmi.boundary_info |= FRAME_LEFT_BOUNDARY | TILE_LEFT_BOUNDARY;
if ((row + 1) >= cm->mi_rows)
mi->mbmi.boundary_info |= FRAME_BOTTOM_BOUNDARY | TILE_BOTTOM_BOUNDARY;
if ((col + 1) >= cm->mi_cols)
mi->mbmi.boundary_info |= FRAME_RIGHT_BOUNDARY | TILE_RIGHT_BOUNDARY;
}
}
#if CONFIG_LOOPFILTERING_ACROSS_TILES
int av1_disable_loopfilter_on_tile_boundary(const struct AV1Common *cm) {
return (!cm->loop_filter_across_tiles_enabled &&
(cm->tile_cols * cm->tile_rows > 1));
}
#endif // CONFIG_LOOPFILTERING_ACROSS_TILES
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