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 VPX_VP9_COMMON_VP9_PRED_COMMON_H_
12 #define VPX_VP9_COMMON_VP9_PRED_COMMON_H_
13
14 #define INLINE __inline
15
16 #include <stdint.h>
17 #include "vp9_blockd.h"
18 #include "vp9_onyxc_int.h"
19 #include "vpx_dsp_common.h"
20
21 #ifdef __cplusplus
22 extern "C" {
23 #endif
24
get_segment_id(const VP9_COMMON * cm,const uint8_t * segment_ids,BLOCK_SIZE bsize,int mi_row,int mi_col)25 static INLINE int get_segment_id(const VP9_COMMON *cm,
26 const uint8_t *segment_ids, BLOCK_SIZE bsize,
27 int mi_row, int mi_col) {
28 const int mi_offset = mi_row * cm->mi_cols + mi_col;
29 const int bw = eb_vp9_num_8x8_blocks_wide_lookup[bsize];
30 const int bh = eb_vp9_num_8x8_blocks_high_lookup[bsize];
31 const int xmis = VPXMIN(cm->mi_cols - mi_col, bw);
32 const int ymis = VPXMIN(cm->mi_rows - mi_row, bh);
33 int x, y, segment_id = MAX_SEGMENTS;
34
35 for (y = 0; y < ymis; ++y)
36 for (x = 0; x < xmis; ++x)
37 segment_id =
38 VPXMIN(segment_id, segment_ids[mi_offset + y * cm->mi_cols + x]);
39
40 assert(segment_id >= 0 && segment_id < MAX_SEGMENTS);
41 return segment_id;
42 }
43 #if 0 // Hsan: temporal_update not supported
44 static INLINE int vp9_get_pred_context_seg_id(const MACROBLOCKD *xd) {
45 const ModeInfo *const above_mi = xd->above_mi;
46 const ModeInfo *const left_mi = xd->left_mi;
47 const int above_sip = (above_mi != NULL) ? above_mi->seg_id_predicted : 0;
48 const int left_sip = (left_mi != NULL) ? left_mi->seg_id_predicted : 0;
49
50 return above_sip + left_sip;
51 }
52
53 static INLINE vpx_prob vp9_get_pred_prob_seg_id(const struct segmentation *seg,
54 const MACROBLOCKD *xd) {
55 return seg->pred_probs[vp9_get_pred_context_seg_id(xd)];
56 }
57 #endif
vp9_get_skip_context(const MACROBLOCKD * xd)58 static INLINE int vp9_get_skip_context(const MACROBLOCKD *xd) {
59 const ModeInfo *const above_mi = xd->above_mi;
60 const ModeInfo *const left_mi = xd->left_mi;
61 const int above_skip = (above_mi != NULL) ? above_mi->skip : 0;
62 const int left_skip = (left_mi != NULL) ? left_mi->skip : 0;
63 return above_skip + left_skip;
64 }
65
vp9_get_skip_prob(const VP9_COMMON * cm,const MACROBLOCKD * xd)66 static INLINE vpx_prob vp9_get_skip_prob(const VP9_COMMON *cm,
67 const MACROBLOCKD *xd) {
68 return cm->fc->skip_probs[vp9_get_skip_context(xd)];
69 }
70 #if 0 // Hsan: switchable interp_filter not supported
71 // Returns a context number for the given MB prediction signal
72 static INLINE int get_pred_context_switchable_interp(const MACROBLOCKD *xd) {
73 // Note:
74 // The mode info data structure has a one element border above and to the
75 // left of the entries corresponding to real macroblocks.
76 // The prediction flags in these dummy entries are initialized to 0.
77 const ModeInfo *const left_mi = xd->left_mi;
78 const int left_type = left_mi ? left_mi->interp_filter : SWITCHABLE_FILTERS;
79 const ModeInfo *const above_mi = xd->above_mi;
80 const int above_type =
81 above_mi ? above_mi->interp_filter : SWITCHABLE_FILTERS;
82
83 if (left_type == above_type)
84 return left_type;
85 else if (left_type == SWITCHABLE_FILTERS)
86 return above_type;
87 else if (above_type == SWITCHABLE_FILTERS)
88 return left_type;
89 else
90 return SWITCHABLE_FILTERS;
91 }
92 #endif
93 // The mode info data structure has a one element border above and to the
94 // left of the entries corresponding to real macroblocks.
95 // The prediction flags in these dummy entries are initialized to 0.
96 // 0 - inter/inter, inter/--, --/inter, --/--
97 // 1 - intra/inter, inter/intra
98 // 2 - intra/--, --/intra
99 // 3 - intra/intra
get_intra_inter_context(const MACROBLOCKD * xd)100 static INLINE int get_intra_inter_context(const MACROBLOCKD *xd) {
101 const ModeInfo *const above_mi = xd->above_mi;
102 const ModeInfo *const left_mi = xd->left_mi;
103 const int has_above = !!above_mi;
104 const int has_left = !!left_mi;
105
106 if (has_above && has_left) { // both edges available
107 const int above_intra = !is_inter_block(above_mi);
108 const int left_intra = !is_inter_block(left_mi);
109 return left_intra && above_intra ? 3 : left_intra || above_intra;
110 } else if (has_above || has_left) { // one edge available
111 return 2 * !is_inter_block(has_above ? above_mi : left_mi);
112 }
113 return 0;
114 }
115
vp9_get_intra_inter_prob(const VP9_COMMON * cm,const MACROBLOCKD * xd)116 static INLINE vpx_prob vp9_get_intra_inter_prob(const VP9_COMMON *cm,
117 const MACROBLOCKD *xd) {
118 return cm->fc->intra_inter_prob[get_intra_inter_context(xd)];
119 }
120
121 int eb_vp9_get_reference_mode_context(const VP9_COMMON *cm, const MACROBLOCKD *xd);
122
vp9_get_reference_mode_prob(const VP9_COMMON * cm,const MACROBLOCKD * xd)123 static INLINE vpx_prob vp9_get_reference_mode_prob(const VP9_COMMON *cm,
124 const MACROBLOCKD *xd) {
125 return cm->fc->comp_inter_prob[eb_vp9_get_reference_mode_context(cm, xd)];
126 }
127
128 int eb_vp9_get_pred_context_comp_ref_p(const VP9_COMMON *cm,
129 const MACROBLOCKD *xd);
130
vp9_get_pred_prob_comp_ref_p(const VP9_COMMON * cm,const MACROBLOCKD * xd)131 static INLINE vpx_prob vp9_get_pred_prob_comp_ref_p(const VP9_COMMON *cm,
132 const MACROBLOCKD *xd) {
133 const int pred_context = eb_vp9_get_pred_context_comp_ref_p(cm, xd);
134 return cm->fc->comp_ref_prob[pred_context];
135 }
136
137 int eb_vp9_get_pred_context_single_ref_p1(const MACROBLOCKD *xd);
138
vp9_get_pred_prob_single_ref_p1(const VP9_COMMON * cm,const MACROBLOCKD * xd)139 static INLINE vpx_prob vp9_get_pred_prob_single_ref_p1(const VP9_COMMON *cm,
140 const MACROBLOCKD *xd) {
141 return cm->fc->single_ref_prob[eb_vp9_get_pred_context_single_ref_p1(xd)][0];
142 }
143
144 int eb_vp9_get_pred_context_single_ref_p2(const MACROBLOCKD *xd);
145
vp9_get_pred_prob_single_ref_p2(const VP9_COMMON * cm,const MACROBLOCKD * xd)146 static INLINE vpx_prob vp9_get_pred_prob_single_ref_p2(const VP9_COMMON *cm,
147 const MACROBLOCKD *xd) {
148 return cm->fc->single_ref_prob[eb_vp9_get_pred_context_single_ref_p2(xd)][1];
149 }
150
151 int eb_vp9_compound_reference_allowed(const VP9_COMMON *cm);
152
153 void eb_vp9_setup_compound_reference_mode(VP9_COMMON *cm);
154
155 // Returns a context number for the given MB prediction signal
156 // The mode info data structure has a one element border above and to the
157 // left of the entries corresponding to real blocks.
158 // The prediction flags in these dummy entries are initialized to 0.
get_tx_size_context(const MACROBLOCKD * xd)159 static INLINE int get_tx_size_context(const MACROBLOCKD *xd) {
160 const int max_tx_size = eb_vp9_max_txsize_lookup[xd->mi[0]->sb_type];
161 const ModeInfo *const above_mi = xd->above_mi;
162 const ModeInfo *const left_mi = xd->left_mi;
163 const int has_above = !!above_mi;
164 const int has_left = !!left_mi;
165 int above_ctx =
166 (has_above && !above_mi->skip) ? (int)above_mi->tx_size : max_tx_size;
167 int left_ctx =
168 (has_left && !left_mi->skip) ? (int)left_mi->tx_size : max_tx_size;
169 if (!has_left) left_ctx = above_ctx;
170
171 if (!has_above) above_ctx = left_ctx;
172
173 return (above_ctx + left_ctx) > max_tx_size;
174 }
175
get_tx_probs(TX_SIZE max_tx_size,int ctx,const struct tx_probs * tx_probs)176 static INLINE const vpx_prob *get_tx_probs(TX_SIZE max_tx_size, int ctx,
177 const struct tx_probs *tx_probs) {
178 switch (max_tx_size) {
179 case TX_8X8: return tx_probs->p8x8[ctx];
180 case TX_16X16: return tx_probs->p16x16[ctx];
181 case TX_32X32: return tx_probs->p32x32[ctx];
182 default: assert(0 && "Invalid max_tx_size."); return NULL;
183 }
184 }
185
get_tx_counts(TX_SIZE max_tx_size,int ctx,struct tx_counts * tx_counts)186 static INLINE unsigned int *get_tx_counts(TX_SIZE max_tx_size, int ctx,
187 struct tx_counts *tx_counts) {
188 switch (max_tx_size) {
189 case TX_8X8: return tx_counts->p8x8[ctx];
190 case TX_16X16: return tx_counts->p16x16[ctx];
191 case TX_32X32: return tx_counts->p32x32[ctx];
192 default: assert(0 && "Invalid max_tx_size."); return NULL;
193 }
194 }
195
196 #ifdef __cplusplus
197 } // extern "C"
198 #endif
199
200 #endif // VPX_VP9_COMMON_VP9_PRED_COMMON_H_
201