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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_ENUMS_H_
     12 #define VP9_COMMON_VP9_ENUMS_H_
     13 
     14 #include "./vpx_config.h"
     15 
     16 #define MI_SIZE_LOG2 3
     17 #define MI_BLOCK_SIZE_LOG2 (6 - MI_SIZE_LOG2)  // 64 = 2^6
     18 
     19 #define MI_SIZE (1 << MI_SIZE_LOG2)  // pixels per mi-unit
     20 #define MI_BLOCK_SIZE (1 << MI_BLOCK_SIZE_LOG2)  // mi-units per max block
     21 
     22 #define MI_MASK (MI_BLOCK_SIZE - 1)
     23 
     24 
     25 typedef enum BLOCK_SIZE {
     26   BLOCK_4X4,
     27   BLOCK_4X8,
     28   BLOCK_8X4,
     29   BLOCK_8X8,
     30   BLOCK_8X16,
     31   BLOCK_16X8,
     32   BLOCK_16X16,
     33   BLOCK_16X32,
     34   BLOCK_32X16,
     35   BLOCK_32X32,
     36   BLOCK_32X64,
     37   BLOCK_64X32,
     38   BLOCK_64X64,
     39   BLOCK_SIZES,
     40   BLOCK_INVALID = BLOCK_SIZES
     41 } BLOCK_SIZE;
     42 
     43 typedef enum PARTITION_TYPE {
     44   PARTITION_NONE,
     45   PARTITION_HORZ,
     46   PARTITION_VERT,
     47   PARTITION_SPLIT,
     48   PARTITION_TYPES,
     49   PARTITION_INVALID = PARTITION_TYPES
     50 } PARTITION_TYPE;
     51 
     52 #define PARTITION_PLOFFSET   4  // number of probability models per block size
     53 #define NUM_PARTITION_CONTEXTS (4 * PARTITION_PLOFFSET)
     54 
     55 typedef enum {
     56   TX_4X4 = 0,                      // 4x4 dct transform
     57   TX_8X8 = 1,                      // 8x8 dct transform
     58   TX_16X16 = 2,                    // 16x16 dct transform
     59   TX_32X32 = 3,                    // 32x32 dct transform
     60   TX_SIZES
     61 } TX_SIZE;
     62 
     63 typedef enum {
     64   ONLY_4X4            = 0,
     65   ALLOW_8X8           = 1,
     66   ALLOW_16X16         = 2,
     67   ALLOW_32X32         = 3,
     68   TX_MODE_SELECT      = 4,
     69   TX_MODES            = 5,
     70 } TX_MODE;
     71 
     72 typedef enum {
     73   DCT_DCT   = 0,                      // DCT  in both horizontal and vertical
     74   ADST_DCT  = 1,                      // ADST in vertical, DCT in horizontal
     75   DCT_ADST  = 2,                      // DCT  in vertical, ADST in horizontal
     76   ADST_ADST = 3                       // ADST in both directions
     77 } TX_TYPE;
     78 
     79 #endif  // VP9_COMMON_VP9_ENUMS_H_
     80