1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/*
* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VP9_COMMON_VP9_SCAN_H_
#define VP9_COMMON_VP9_SCAN_H_
#include "vpx/vpx_integer.h"
#include "vpx_ports/mem.h"
#include "vp9/common/vp9_enums.h"
#define MAX_NEIGHBORS 2
extern DECLARE_ALIGNED(16, const int16_t, vp9_default_scan_4x4[16]);
extern DECLARE_ALIGNED(16, const int16_t, vp9_col_scan_4x4[16]);
extern DECLARE_ALIGNED(16, const int16_t, vp9_row_scan_4x4[16]);
extern DECLARE_ALIGNED(16, const int16_t, vp9_default_scan_8x8[64]);
extern DECLARE_ALIGNED(16, const int16_t, vp9_col_scan_8x8[64]);
extern DECLARE_ALIGNED(16, const int16_t, vp9_row_scan_8x8[64]);
extern DECLARE_ALIGNED(16, const int16_t, vp9_default_scan_16x16[256]);
extern DECLARE_ALIGNED(16, const int16_t, vp9_col_scan_16x16[256]);
extern DECLARE_ALIGNED(16, const int16_t, vp9_row_scan_16x16[256]);
extern DECLARE_ALIGNED(16, const int16_t, vp9_default_scan_32x32[1024]);
extern DECLARE_ALIGNED(16, int16_t, vp9_default_iscan_4x4[16]);
extern DECLARE_ALIGNED(16, int16_t, vp9_col_iscan_4x4[16]);
extern DECLARE_ALIGNED(16, int16_t, vp9_row_iscan_4x4[16]);
extern DECLARE_ALIGNED(16, int16_t, vp9_default_iscan_8x8[64]);
extern DECLARE_ALIGNED(16, int16_t, vp9_col_iscan_8x8[64]);
extern DECLARE_ALIGNED(16, int16_t, vp9_row_iscan_8x8[64]);
extern DECLARE_ALIGNED(16, int16_t, vp9_default_iscan_16x16[256]);
extern DECLARE_ALIGNED(16, int16_t, vp9_col_iscan_16x16[256]);
extern DECLARE_ALIGNED(16, int16_t, vp9_row_iscan_16x16[256]);
extern DECLARE_ALIGNED(16, int16_t, vp9_default_iscan_32x32[1024]);
extern DECLARE_ALIGNED(16, int16_t,
vp9_default_scan_4x4_neighbors[17 * MAX_NEIGHBORS]);
extern DECLARE_ALIGNED(16, int16_t,
vp9_col_scan_4x4_neighbors[17 * MAX_NEIGHBORS]);
extern DECLARE_ALIGNED(16, int16_t,
vp9_row_scan_4x4_neighbors[17 * MAX_NEIGHBORS]);
extern DECLARE_ALIGNED(16, int16_t,
vp9_col_scan_8x8_neighbors[65 * MAX_NEIGHBORS]);
extern DECLARE_ALIGNED(16, int16_t,
vp9_row_scan_8x8_neighbors[65 * MAX_NEIGHBORS]);
extern DECLARE_ALIGNED(16, int16_t,
vp9_default_scan_8x8_neighbors[65 * MAX_NEIGHBORS]);
extern DECLARE_ALIGNED(16, int16_t,
vp9_col_scan_16x16_neighbors[257 * MAX_NEIGHBORS]);
extern DECLARE_ALIGNED(16, int16_t,
vp9_row_scan_16x16_neighbors[257 * MAX_NEIGHBORS]);
extern DECLARE_ALIGNED(16, int16_t,
vp9_default_scan_16x16_neighbors[257 * MAX_NEIGHBORS]);
extern DECLARE_ALIGNED(16, int16_t,
vp9_default_scan_32x32_neighbors[1025 * MAX_NEIGHBORS]);
void vp9_init_neighbors();
static INLINE const int16_t* get_scan_4x4(TX_TYPE tx_type) {
switch (tx_type) {
case ADST_DCT:
return vp9_row_scan_4x4;
case DCT_ADST:
return vp9_col_scan_4x4;
default:
return vp9_default_scan_4x4;
}
}
static INLINE void get_scan_nb_4x4(TX_TYPE tx_type,
const int16_t **scan, const int16_t **nb) {
switch (tx_type) {
case ADST_DCT:
*scan = vp9_row_scan_4x4;
*nb = vp9_row_scan_4x4_neighbors;
break;
case DCT_ADST:
*scan = vp9_col_scan_4x4;
*nb = vp9_col_scan_4x4_neighbors;
break;
default:
*scan = vp9_default_scan_4x4;
*nb = vp9_default_scan_4x4_neighbors;
break;
}
}
static INLINE const int16_t* get_iscan_4x4(TX_TYPE tx_type) {
switch (tx_type) {
case ADST_DCT:
return vp9_row_iscan_4x4;
case DCT_ADST:
return vp9_col_iscan_4x4;
default:
return vp9_default_iscan_4x4;
}
}
static INLINE const int16_t* get_scan_8x8(TX_TYPE tx_type) {
switch (tx_type) {
case ADST_DCT:
return vp9_row_scan_8x8;
case DCT_ADST:
return vp9_col_scan_8x8;
default:
return vp9_default_scan_8x8;
}
}
static INLINE void get_scan_nb_8x8(TX_TYPE tx_type,
const int16_t **scan, const int16_t **nb) {
switch (tx_type) {
case ADST_DCT:
*scan = vp9_row_scan_8x8;
*nb = vp9_row_scan_8x8_neighbors;
break;
case DCT_ADST:
*scan = vp9_col_scan_8x8;
*nb = vp9_col_scan_8x8_neighbors;
break;
default:
*scan = vp9_default_scan_8x8;
*nb = vp9_default_scan_8x8_neighbors;
break;
}
}
static INLINE const int16_t* get_iscan_8x8(TX_TYPE tx_type) {
switch (tx_type) {
case ADST_DCT:
return vp9_row_iscan_8x8;
case DCT_ADST:
return vp9_col_iscan_8x8;
default:
return vp9_default_iscan_8x8;
}
}
static INLINE const int16_t* get_scan_16x16(TX_TYPE tx_type) {
switch (tx_type) {
case ADST_DCT:
return vp9_row_scan_16x16;
case DCT_ADST:
return vp9_col_scan_16x16;
default:
return vp9_default_scan_16x16;
}
}
static INLINE void get_scan_nb_16x16(TX_TYPE tx_type,
const int16_t **scan, const int16_t **nb) {
switch (tx_type) {
case ADST_DCT:
*scan = vp9_row_scan_16x16;
*nb = vp9_row_scan_16x16_neighbors;
break;
case DCT_ADST:
*scan = vp9_col_scan_16x16;
*nb = vp9_col_scan_16x16_neighbors;
break;
default:
*scan = vp9_default_scan_16x16;
*nb = vp9_default_scan_16x16_neighbors;
break;
}
}
static INLINE const int16_t* get_iscan_16x16(TX_TYPE tx_type) {
switch (tx_type) {
case ADST_DCT:
return vp9_row_iscan_16x16;
case DCT_ADST:
return vp9_col_iscan_16x16;
default:
return vp9_default_iscan_16x16;
}
}
static INLINE int get_coef_context(const int16_t *neighbors,
uint8_t *token_cache,
int c) {
return (1 + token_cache[neighbors[MAX_NEIGHBORS * c + 0]] +
token_cache[neighbors[MAX_NEIGHBORS * c + 1]]) >> 1;
}
#endif // VP9_COMMON_VP9_SCAN_H_
|
