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      1 /*
      2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #ifndef VP9_COMMON_VP9_TILE_COMMON_H_
     12 #define VP9_COMMON_VP9_TILE_COMMON_H_
     13 
     14 struct VP9Common;
     15 
     16 typedef struct TileInfo {
     17   int mi_row_start, mi_row_end;
     18   int mi_col_start, mi_col_end;
     19 } TileInfo;
     20 
     21 // initializes 'tile->mi_(row|col)_(start|end)' for (row_idx, col_idx) based on
     22 // 'cm->log2_tile_(rows|cols)' & 'cm->mi_(rows|cols)'
     23 void vp9_tile_init(TileInfo *tile, const struct VP9Common *cm,
     24                    int row_idx, int col_idx);
     25 
     26 void vp9_get_tile_n_bits(int mi_cols,
     27                          int *min_log2_tile_cols, int *max_log2_tile_cols);
     28 
     29 #endif  // VP9_COMMON_VP9_TILE_COMMON_H_
     30