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 #ifdef __cplusplus
15 extern "C" {
16 #endif
17 
18 struct VP9Common;
19 
20 typedef struct TileInfo {
21   int mi_row_start, mi_row_end;
22   int mi_col_start, mi_col_end;
23 } TileInfo;
24 
25 // initializes 'tile->mi_(row|col)_(start|end)' for (row, col) based on
26 // 'cm->log2_tile_(rows|cols)' & 'cm->mi_(rows|cols)'
27 void vp9_tile_init(TileInfo *tile, const struct VP9Common *cm,
28                    int row, int col);
29 
30 void vp9_get_tile_n_bits(int mi_cols,
31                          int *min_log2_tile_cols, int *max_log2_tile_cols);
32 
33 #ifdef __cplusplus
34 }  // extern "C"
35 #endif
36 
37 #endif  // VP9_COMMON_VP9_TILE_COMMON_H_
38