511da8cbe5
Rename MI_BLOCK_SIZE.* -> MAX_MIB_SIZE.* (MIB is for MI Block). Rename MI_MASK.* -> MAX_MIB_MASK.* There are no functional changes. This is in preparation for coding the superblock size at the frame level, which will require some of these constants to become variables. The new names better reflect future semantics, and hence make the code clearer. Change-Id: Iee08d97554cf4cc16a5dc166a3ffd1ab91529992
59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "vp10/common/tile_common.h"
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#include "vp10/common/onyxc_int.h"
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#include "vpx_dsp/vpx_dsp_common.h"
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#define MIN_TILE_WIDTH_B64 4
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#define MAX_TILE_WIDTH_B64 64
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void vp10_tile_set_row(TileInfo *tile, const VP10_COMMON *cm, int row) {
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tile->mi_row_start = row * cm->tile_height;
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tile->mi_row_end = VPXMIN(tile->mi_row_start + cm->tile_height,
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cm->mi_rows);
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}
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void vp10_tile_set_col(TileInfo *tile, const VP10_COMMON *cm, int col) {
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tile->mi_col_start = col * cm->tile_width;
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tile->mi_col_end = VPXMIN(tile->mi_col_start + cm->tile_width,
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cm->mi_cols);
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}
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void vp10_tile_init(TileInfo *tile, const VP10_COMMON *cm, int row, int col) {
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vp10_tile_set_row(tile, cm, row);
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vp10_tile_set_col(tile, cm, col);
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}
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#if !CONFIG_EXT_TILE
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// TODO(geza.lore): CU_SIZE dependent.
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static int get_min_log2_tile_cols(const int sb64_cols) {
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int min_log2 = 0;
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while ((MAX_TILE_WIDTH_B64 << min_log2) < sb64_cols)
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++min_log2;
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return min_log2;
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}
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static int get_max_log2_tile_cols(const int sb64_cols) {
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int max_log2 = 1;
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while ((sb64_cols >> max_log2) >= MIN_TILE_WIDTH_B64)
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++max_log2;
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return max_log2 - 1;
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}
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void vp10_get_tile_n_bits(int mi_cols,
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int *min_log2_tile_cols, int *max_log2_tile_cols) {
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const int sb64_cols = mi_cols_aligned_to_sb(mi_cols) >> MAX_MIB_SIZE_LOG2;
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*min_log2_tile_cols = get_min_log2_tile_cols(sb64_cols);
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*max_log2_tile_cols = get_max_log2_tile_cols(sb64_cols);
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assert(*min_log2_tile_cols <= *max_log2_tile_cols);
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}
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#endif // !CONFIG_EXT_TILE
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