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      1 /*
      2  *  Copyright (c) 2012 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_PRED_COMMON_H_
     12 #define VP9_COMMON_VP9_PRED_COMMON_H_
     13 
     14 #include "vp9/common/vp9_blockd.h"
     15 #include "vp9/common/vp9_onyxc_int.h"
     16 
     17 #ifdef __cplusplus
     18 extern "C" {
     19 #endif
     20 
     21 static INLINE const MODE_INFO *get_above_mi(const MACROBLOCKD *const xd) {
     22   return xd->up_available ? xd->mi[-xd->mi_stride] : NULL;
     23 }
     24 
     25 static INLINE const MODE_INFO *get_left_mi(const MACROBLOCKD *const xd) {
     26   return xd->left_available ? xd->mi[-1] : NULL;
     27 }
     28 
     29 int vp9_get_segment_id(VP9_COMMON *cm, const uint8_t *segment_ids,
     30                        BLOCK_SIZE bsize, int mi_row, int mi_col);
     31 
     32 static INLINE int vp9_get_pred_context_seg_id(const MACROBLOCKD *xd) {
     33   const MODE_INFO *const above_mi = get_above_mi(xd);
     34   const MODE_INFO *const left_mi = get_left_mi(xd);
     35   const int above_sip = (above_mi != NULL) ?
     36                         above_mi->mbmi.seg_id_predicted : 0;
     37   const int left_sip = (left_mi != NULL) ? left_mi->mbmi.seg_id_predicted : 0;
     38 
     39   return above_sip + left_sip;
     40 }
     41 
     42 static INLINE vp9_prob vp9_get_pred_prob_seg_id(const struct segmentation *seg,
     43                                                 const MACROBLOCKD *xd) {
     44   return seg->pred_probs[vp9_get_pred_context_seg_id(xd)];
     45 }
     46 
     47 static INLINE int vp9_get_skip_context(const MACROBLOCKD *xd) {
     48   const MODE_INFO *const above_mi = get_above_mi(xd);
     49   const MODE_INFO *const left_mi = get_left_mi(xd);
     50   const int above_skip = (above_mi != NULL) ? above_mi->mbmi.skip : 0;
     51   const int left_skip = (left_mi != NULL) ? left_mi->mbmi.skip : 0;
     52   return above_skip + left_skip;
     53 }
     54 
     55 static INLINE vp9_prob vp9_get_skip_prob(const VP9_COMMON *cm,
     56                                          const MACROBLOCKD *xd) {
     57   return cm->fc.skip_probs[vp9_get_skip_context(xd)];
     58 }
     59 
     60 int vp9_get_pred_context_switchable_interp(const MACROBLOCKD *xd);
     61 
     62 int vp9_get_intra_inter_context(const MACROBLOCKD *xd);
     63 
     64 static INLINE vp9_prob vp9_get_intra_inter_prob(const VP9_COMMON *cm,
     65                                                 const MACROBLOCKD *xd) {
     66   return cm->fc.intra_inter_prob[vp9_get_intra_inter_context(xd)];
     67 }
     68 
     69 int vp9_get_reference_mode_context(const VP9_COMMON *cm, const MACROBLOCKD *xd);
     70 
     71 static INLINE vp9_prob vp9_get_reference_mode_prob(const VP9_COMMON *cm,
     72                                                    const MACROBLOCKD *xd) {
     73   return cm->fc.comp_inter_prob[vp9_get_reference_mode_context(cm, xd)];
     74 }
     75 
     76 int vp9_get_pred_context_comp_ref_p(const VP9_COMMON *cm,
     77                                     const MACROBLOCKD *xd);
     78 
     79 static INLINE vp9_prob vp9_get_pred_prob_comp_ref_p(const VP9_COMMON *cm,
     80                                                     const MACROBLOCKD *xd) {
     81   const int pred_context = vp9_get_pred_context_comp_ref_p(cm, xd);
     82   return cm->fc.comp_ref_prob[pred_context];
     83 }
     84 
     85 int vp9_get_pred_context_single_ref_p1(const MACROBLOCKD *xd);
     86 
     87 static INLINE vp9_prob vp9_get_pred_prob_single_ref_p1(const VP9_COMMON *cm,
     88                                                        const MACROBLOCKD *xd) {
     89   return cm->fc.single_ref_prob[vp9_get_pred_context_single_ref_p1(xd)][0];
     90 }
     91 
     92 int vp9_get_pred_context_single_ref_p2(const MACROBLOCKD *xd);
     93 
     94 static INLINE vp9_prob vp9_get_pred_prob_single_ref_p2(const VP9_COMMON *cm,
     95                                                        const MACROBLOCKD *xd) {
     96   return cm->fc.single_ref_prob[vp9_get_pred_context_single_ref_p2(xd)][1];
     97 }
     98 
     99 int vp9_get_tx_size_context(const MACROBLOCKD *xd);
    100 
    101 static INLINE const vp9_prob *get_tx_probs(TX_SIZE max_tx_size, int ctx,
    102                                            const struct tx_probs *tx_probs) {
    103   switch (max_tx_size) {
    104     case TX_8X8:
    105       return tx_probs->p8x8[ctx];
    106     case TX_16X16:
    107       return tx_probs->p16x16[ctx];
    108     case TX_32X32:
    109       return tx_probs->p32x32[ctx];
    110     default:
    111       assert(0 && "Invalid max_tx_size.");
    112       return NULL;
    113   }
    114 }
    115 
    116 static INLINE const vp9_prob *get_tx_probs2(TX_SIZE max_tx_size,
    117                                             const MACROBLOCKD *xd,
    118                                             const struct tx_probs *tx_probs) {
    119   return get_tx_probs(max_tx_size, vp9_get_tx_size_context(xd), tx_probs);
    120 }
    121 
    122 static INLINE unsigned int *get_tx_counts(TX_SIZE max_tx_size, int ctx,
    123                                           struct tx_counts *tx_counts) {
    124   switch (max_tx_size) {
    125     case TX_8X8:
    126       return tx_counts->p8x8[ctx];
    127     case TX_16X16:
    128       return tx_counts->p16x16[ctx];
    129     case TX_32X32:
    130       return tx_counts->p32x32[ctx];
    131     default:
    132       assert(0 && "Invalid max_tx_size.");
    133       return NULL;
    134   }
    135 }
    136 
    137 #ifdef __cplusplus
    138 }  // extern "C"
    139 #endif
    140 
    141 #endif  // VP9_COMMON_VP9_PRED_COMMON_H_
    142