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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 #include "vp9/common/vp9_common_data.h"
12 #include "vpx_dsp/vpx_dsp_common.h"
13 
14 // Log 2 conversion lookup tables for block width and height
15 const uint8_t b_width_log2_lookup[BLOCK_SIZES] = { 0, 0, 1, 1, 1, 2, 2,
16                                                    2, 3, 3, 3, 4, 4 };
17 const uint8_t b_height_log2_lookup[BLOCK_SIZES] = { 0, 1, 0, 1, 2, 1, 2,
18                                                     3, 2, 3, 4, 3, 4 };
19 const uint8_t num_4x4_blocks_wide_lookup[BLOCK_SIZES] = { 1, 1, 2, 2, 2,  4, 4,
20                                                           4, 8, 8, 8, 16, 16 };
21 const uint8_t num_4x4_blocks_high_lookup[BLOCK_SIZES] = { 1, 2, 1, 2,  4, 2, 4,
22                                                           8, 4, 8, 16, 8, 16 };
23 // Log 2 conversion lookup tables for modeinfo width and height
24 const uint8_t mi_width_log2_lookup[BLOCK_SIZES] = { 0, 0, 0, 0, 0, 1, 1,
25                                                     1, 2, 2, 2, 3, 3 };
26 const uint8_t num_8x8_blocks_wide_lookup[BLOCK_SIZES] = { 1, 1, 1, 1, 1, 2, 2,
27                                                           2, 4, 4, 4, 8, 8 };
28 const uint8_t num_8x8_blocks_high_lookup[BLOCK_SIZES] = { 1, 1, 1, 1, 2, 1, 2,
29                                                           4, 2, 4, 8, 4, 8 };
30 
31 // VPXMIN(3, VPXMIN(b_width_log2(bsize), b_height_log2(bsize)))
32 const uint8_t size_group_lookup[BLOCK_SIZES] = { 0, 0, 0, 1, 1, 1, 2,
33                                                  2, 2, 3, 3, 3, 3 };
34 
35 const uint8_t num_pels_log2_lookup[BLOCK_SIZES] = { 4, 5, 5,  6,  7,  7, 8,
36                                                     9, 9, 10, 11, 11, 12 };
37 
38 const PARTITION_TYPE partition_lookup[][BLOCK_SIZES] = {
39   { // 4X4
40     // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64
41     PARTITION_NONE, PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID,
42     PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID,
43     PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID,
44     PARTITION_INVALID },
45   { // 8X8
46     // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64
47     PARTITION_SPLIT, PARTITION_VERT, PARTITION_HORZ, PARTITION_NONE,
48     PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID,
49     PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID,
50     PARTITION_INVALID },
51   { // 16X16
52     // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64
53     PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT,
54     PARTITION_VERT, PARTITION_HORZ, PARTITION_NONE, PARTITION_INVALID,
55     PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID,
56     PARTITION_INVALID },
57   { // 32X32
58     // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64
59     PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT,
60     PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_VERT,
61     PARTITION_HORZ, PARTITION_NONE, PARTITION_INVALID, PARTITION_INVALID,
62     PARTITION_INVALID },
63   { // 64X64
64     // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64
65     PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT,
66     PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT,
67     PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_VERT, PARTITION_HORZ,
68     PARTITION_NONE }
69 };
70 
71 const BLOCK_SIZE subsize_lookup[PARTITION_TYPES][BLOCK_SIZES] = {
72   { // PARTITION_NONE
73     BLOCK_4X4, BLOCK_4X8, BLOCK_8X4, BLOCK_8X8, BLOCK_8X16, BLOCK_16X8,
74     BLOCK_16X16, BLOCK_16X32, BLOCK_32X16, BLOCK_32X32, BLOCK_32X64,
75     BLOCK_64X32, BLOCK_64X64 },
76   { // PARTITION_HORZ
77     BLOCK_INVALID, BLOCK_INVALID, BLOCK_INVALID, BLOCK_8X4, BLOCK_INVALID,
78     BLOCK_INVALID, BLOCK_16X8, BLOCK_INVALID, BLOCK_INVALID, BLOCK_32X16,
79     BLOCK_INVALID, BLOCK_INVALID, BLOCK_64X32 },
80   { // PARTITION_VERT
81     BLOCK_INVALID, BLOCK_INVALID, BLOCK_INVALID, BLOCK_4X8, BLOCK_INVALID,
82     BLOCK_INVALID, BLOCK_8X16, BLOCK_INVALID, BLOCK_INVALID, BLOCK_16X32,
83     BLOCK_INVALID, BLOCK_INVALID, BLOCK_32X64 },
84   { // PARTITION_SPLIT
85     BLOCK_INVALID, BLOCK_INVALID, BLOCK_INVALID, BLOCK_4X4, BLOCK_INVALID,
86     BLOCK_INVALID, BLOCK_8X8, BLOCK_INVALID, BLOCK_INVALID, BLOCK_16X16,
87     BLOCK_INVALID, BLOCK_INVALID, BLOCK_32X32 }
88 };
89 
90 const TX_SIZE max_txsize_lookup[BLOCK_SIZES] = {
91   TX_4X4,   TX_4X4,   TX_4X4,   TX_8X8,   TX_8X8,   TX_8X8,  TX_16X16,
92   TX_16X16, TX_16X16, TX_32X32, TX_32X32, TX_32X32, TX_32X32
93 };
94 
95 const BLOCK_SIZE txsize_to_bsize[TX_SIZES] = {
96   BLOCK_4X4,    // TX_4X4
97   BLOCK_8X8,    // TX_8X8
98   BLOCK_16X16,  // TX_16X16
99   BLOCK_32X32,  // TX_32X32
100 };
101 
102 const TX_SIZE tx_mode_to_biggest_tx_size[TX_MODES] = {
103   TX_4X4,    // ONLY_4X4
104   TX_8X8,    // ALLOW_8X8
105   TX_16X16,  // ALLOW_16X16
106   TX_32X32,  // ALLOW_32X32
107   TX_32X32,  // TX_MODE_SELECT
108 };
109 
110 const BLOCK_SIZE ss_size_lookup[BLOCK_SIZES][2][2] = {
111   //  ss_x == 0    ss_x == 0        ss_x == 1      ss_x == 1
112   //  ss_y == 0    ss_y == 1        ss_y == 0      ss_y == 1
113   { { BLOCK_4X4, BLOCK_INVALID }, { BLOCK_INVALID, BLOCK_INVALID } },
114   { { BLOCK_4X8, BLOCK_4X4 }, { BLOCK_INVALID, BLOCK_INVALID } },
115   { { BLOCK_8X4, BLOCK_INVALID }, { BLOCK_4X4, BLOCK_INVALID } },
116   { { BLOCK_8X8, BLOCK_8X4 }, { BLOCK_4X8, BLOCK_4X4 } },
117   { { BLOCK_8X16, BLOCK_8X8 }, { BLOCK_INVALID, BLOCK_4X8 } },
118   { { BLOCK_16X8, BLOCK_INVALID }, { BLOCK_8X8, BLOCK_8X4 } },
119   { { BLOCK_16X16, BLOCK_16X8 }, { BLOCK_8X16, BLOCK_8X8 } },
120   { { BLOCK_16X32, BLOCK_16X16 }, { BLOCK_INVALID, BLOCK_8X16 } },
121   { { BLOCK_32X16, BLOCK_INVALID }, { BLOCK_16X16, BLOCK_16X8 } },
122   { { BLOCK_32X32, BLOCK_32X16 }, { BLOCK_16X32, BLOCK_16X16 } },
123   { { BLOCK_32X64, BLOCK_32X32 }, { BLOCK_INVALID, BLOCK_16X32 } },
124   { { BLOCK_64X32, BLOCK_INVALID }, { BLOCK_32X32, BLOCK_32X16 } },
125   { { BLOCK_64X64, BLOCK_64X32 }, { BLOCK_32X64, BLOCK_32X32 } },
126 };
127 
128 const TX_SIZE uv_txsize_lookup[BLOCK_SIZES][TX_SIZES][2][2] = {
129   //  ss_x == 0    ss_x == 0        ss_x == 1      ss_x == 1
130   //  ss_y == 0    ss_y == 1        ss_y == 0      ss_y == 1
131   {
132       // BLOCK_4X4
133       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
134       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
135       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
136       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
137   },
138   {
139       // BLOCK_4X8
140       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
141       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
142       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
143       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
144   },
145   {
146       // BLOCK_8X4
147       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
148       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
149       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
150       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
151   },
152   {
153       // BLOCK_8X8
154       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
155       { { TX_8X8, TX_4X4 }, { TX_4X4, TX_4X4 } },
156       { { TX_8X8, TX_4X4 }, { TX_4X4, TX_4X4 } },
157       { { TX_8X8, TX_4X4 }, { TX_4X4, TX_4X4 } },
158   },
159   {
160       // BLOCK_8X16
161       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
162       { { TX_8X8, TX_8X8 }, { TX_4X4, TX_4X4 } },
163       { { TX_8X8, TX_8X8 }, { TX_4X4, TX_4X4 } },
164       { { TX_8X8, TX_8X8 }, { TX_4X4, TX_4X4 } },
165   },
166   {
167       // BLOCK_16X8
168       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
169       { { TX_8X8, TX_4X4 }, { TX_8X8, TX_4X4 } },
170       { { TX_8X8, TX_4X4 }, { TX_8X8, TX_8X8 } },
171       { { TX_8X8, TX_4X4 }, { TX_8X8, TX_8X8 } },
172   },
173   {
174       // BLOCK_16X16
175       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
176       { { TX_8X8, TX_8X8 }, { TX_8X8, TX_8X8 } },
177       { { TX_16X16, TX_8X8 }, { TX_8X8, TX_8X8 } },
178       { { TX_16X16, TX_8X8 }, { TX_8X8, TX_8X8 } },
179   },
180   {
181       // BLOCK_16X32
182       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
183       { { TX_8X8, TX_8X8 }, { TX_8X8, TX_8X8 } },
184       { { TX_16X16, TX_16X16 }, { TX_8X8, TX_8X8 } },
185       { { TX_16X16, TX_16X16 }, { TX_8X8, TX_8X8 } },
186   },
187   {
188       // BLOCK_32X16
189       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
190       { { TX_8X8, TX_8X8 }, { TX_8X8, TX_8X8 } },
191       { { TX_16X16, TX_8X8 }, { TX_16X16, TX_8X8 } },
192       { { TX_16X16, TX_8X8 }, { TX_16X16, TX_8X8 } },
193   },
194   {
195       // BLOCK_32X32
196       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
197       { { TX_8X8, TX_8X8 }, { TX_8X8, TX_8X8 } },
198       { { TX_16X16, TX_16X16 }, { TX_16X16, TX_16X16 } },
199       { { TX_32X32, TX_16X16 }, { TX_16X16, TX_16X16 } },
200   },
201   {
202       // BLOCK_32X64
203       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
204       { { TX_8X8, TX_8X8 }, { TX_8X8, TX_8X8 } },
205       { { TX_16X16, TX_16X16 }, { TX_16X16, TX_16X16 } },
206       { { TX_32X32, TX_32X32 }, { TX_16X16, TX_16X16 } },
207   },
208   {
209       // BLOCK_64X32
210       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
211       { { TX_8X8, TX_8X8 }, { TX_8X8, TX_8X8 } },
212       { { TX_16X16, TX_16X16 }, { TX_16X16, TX_16X16 } },
213       { { TX_32X32, TX_16X16 }, { TX_32X32, TX_16X16 } },
214   },
215   {
216       // BLOCK_64X64
217       { { TX_4X4, TX_4X4 }, { TX_4X4, TX_4X4 } },
218       { { TX_8X8, TX_8X8 }, { TX_8X8, TX_8X8 } },
219       { { TX_16X16, TX_16X16 }, { TX_16X16, TX_16X16 } },
220       { { TX_32X32, TX_32X32 }, { TX_32X32, TX_32X32 } },
221   },
222 };
223 
224 // Generates 4 bit field in which each bit set to 1 represents
225 // a blocksize partition  1111 means we split 64x64, 32x32, 16x16
226 // and 8x8.  1000 means we just split the 64x64 to 32x32
227 const struct {
228   PARTITION_CONTEXT above;
229   PARTITION_CONTEXT left;
230 } partition_context_lookup[BLOCK_SIZES] = {
231   { 15, 15 },  // 4X4   - {0b1111, 0b1111}
232   { 15, 14 },  // 4X8   - {0b1111, 0b1110}
233   { 14, 15 },  // 8X4   - {0b1110, 0b1111}
234   { 14, 14 },  // 8X8   - {0b1110, 0b1110}
235   { 14, 12 },  // 8X16  - {0b1110, 0b1100}
236   { 12, 14 },  // 16X8  - {0b1100, 0b1110}
237   { 12, 12 },  // 16X16 - {0b1100, 0b1100}
238   { 12, 8 },   // 16X32 - {0b1100, 0b1000}
239   { 8, 12 },   // 32X16 - {0b1000, 0b1100}
240   { 8, 8 },    // 32X32 - {0b1000, 0b1000}
241   { 8, 0 },    // 32X64 - {0b1000, 0b0000}
242   { 0, 8 },    // 64X32 - {0b0000, 0b1000}
243   { 0, 0 },    // 64X64 - {0b0000, 0b0000}
244 };
245 
246 #if CONFIG_BETTER_HW_COMPATIBILITY && CONFIG_VP9_HIGHBITDEPTH
247 const uint8_t need_top_left[INTRA_MODES] = {
248   0,  // DC_PRED
249   0,  // V_PRED
250   0,  // H_PRED
251   0,  // D45_PRED
252   1,  // D135_PRED
253   1,  // D117_PRED
254   1,  // D153_PRED
255   0,  // D207_PRED
256   0,  // D63_PRED
257   1,  // TM_PRED
258 };
259 #endif  // CONFIG_BETTER_HW_COMPATIBILITY && CONFIG_VP9_HIGHBITDEPTH
260