Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / libjpeg-turbo / 5996a25e2f50d20d6a8f09830724035b49c3927b / . / jaricom.c
blob: 9e51ed58b419c2a304ecff6c403a3c926424c839 [file] [log] [blame]
Guido Vollbeding1e247ac1998-03-28 00:00:00 +0000[diff] [blame]1/*
2 * jaricom.c
3 *
Guido Vollbeding5996a252009-06-27 00:00:00 +0000[diff] [blame^]4 * Developed 1997 by Guido Vollbeding.
5 * This file is part of the Independent JPEG Group's software.
6 * For conditions of distribution and use, see the accompanying README file.
Guido Vollbeding1e247ac1998-03-28 00:00:00 +0000[diff] [blame]7 *
8 * This file contains probability estimation tables for common use in
9 * arithmetic entropy encoding and decoding routines.
10 *
11 * This data represents Table D.2 in the JPEG spec (ISO/IEC IS 10918-1
12 * and CCITT Recommendation ITU-T T.81) and Table 24 in the JBIG spec
13 * (ISO/IEC IS 11544 and CCITT Recommendation ITU-T T.82).
14 */
15
16#define JPEG_INTERNALS
17#include "jinclude.h"
18#include "jpeglib.h"
19
20/* The following #define specifies the packing of the four components
21 * into the compact INT32 representation.
22 * Note that this formula must match the actual arithmetic encoder
Guido Vollbeding5996a252009-06-27 00:00:00 +0000[diff] [blame^]23 * and decoder implementation. The implementation has to be changed
Guido Vollbeding1e247ac1998-03-28 00:00:00 +0000[diff] [blame]24 * if this formula is changed.
Guido Vollbeding5996a252009-06-27 00:00:00 +0000[diff] [blame^]25 * The current organization is leaned on Markus Kuhn's JBIG
Guido Vollbeding1e247ac1998-03-28 00:00:00 +0000[diff] [blame]26 * implementation (jbig_tab.c).
27 */
28
29#define V(a,b,c,d) (((INT32)a << 16) | ((INT32)c << 8) | ((INT32)d << 7) | b)
30
31const INT32 jaritab[113] = {
32/*
33 * Index, Qe_Value, Next_Index_LPS, Next_Index_MPS, Switch_MPS
34 */
35/* 0 */ V( 0x5a1d, 1, 1, 1 ),
36/* 1 */ V( 0x2586, 14, 2, 0 ),
37/* 2 */ V( 0x1114, 16, 3, 0 ),
38/* 3 */ V( 0x080b, 18, 4, 0 ),
39/* 4 */ V( 0x03d8, 20, 5, 0 ),
40/* 5 */ V( 0x01da, 23, 6, 0 ),
41/* 6 */ V( 0x00e5, 25, 7, 0 ),
42/* 7 */ V( 0x006f, 28, 8, 0 ),
43/* 8 */ V( 0x0036, 30, 9, 0 ),
44/* 9 */ V( 0x001a, 33, 10, 0 ),
45/* 10 */ V( 0x000d, 35, 11, 0 ),
46/* 11 */ V( 0x0006, 9, 12, 0 ),
47/* 12 */ V( 0x0003, 10, 13, 0 ),
48/* 13 */ V( 0x0001, 12, 13, 0 ),
49/* 14 */ V( 0x5a7f, 15, 15, 1 ),
50/* 15 */ V( 0x3f25, 36, 16, 0 ),
51/* 16 */ V( 0x2cf2, 38, 17, 0 ),
52/* 17 */ V( 0x207c, 39, 18, 0 ),
53/* 18 */ V( 0x17b9, 40, 19, 0 ),
54/* 19 */ V( 0x1182, 42, 20, 0 ),
55/* 20 */ V( 0x0cef, 43, 21, 0 ),
56/* 21 */ V( 0x09a1, 45, 22, 0 ),
57/* 22 */ V( 0x072f, 46, 23, 0 ),
58/* 23 */ V( 0x055c, 48, 24, 0 ),
59/* 24 */ V( 0x0406, 49, 25, 0 ),
60/* 25 */ V( 0x0303, 51, 26, 0 ),
61/* 26 */ V( 0x0240, 52, 27, 0 ),
62/* 27 */ V( 0x01b1, 54, 28, 0 ),
63/* 28 */ V( 0x0144, 56, 29, 0 ),
64/* 29 */ V( 0x00f5, 57, 30, 0 ),
65/* 30 */ V( 0x00b7, 59, 31, 0 ),
66/* 31 */ V( 0x008a, 60, 32, 0 ),
67/* 32 */ V( 0x0068, 62, 33, 0 ),
68/* 33 */ V( 0x004e, 63, 34, 0 ),
69/* 34 */ V( 0x003b, 32, 35, 0 ),
70/* 35 */ V( 0x002c, 33, 9, 0 ),
71/* 36 */ V( 0x5ae1, 37, 37, 1 ),
72/* 37 */ V( 0x484c, 64, 38, 0 ),
73/* 38 */ V( 0x3a0d, 65, 39, 0 ),
74/* 39 */ V( 0x2ef1, 67, 40, 0 ),
75/* 40 */ V( 0x261f, 68, 41, 0 ),
76/* 41 */ V( 0x1f33, 69, 42, 0 ),
77/* 42 */ V( 0x19a8, 70, 43, 0 ),
78/* 43 */ V( 0x1518, 72, 44, 0 ),
79/* 44 */ V( 0x1177, 73, 45, 0 ),
80/* 45 */ V( 0x0e74, 74, 46, 0 ),
81/* 46 */ V( 0x0bfb, 75, 47, 0 ),
82/* 47 */ V( 0x09f8, 77, 48, 0 ),
83/* 48 */ V( 0x0861, 78, 49, 0 ),
84/* 49 */ V( 0x0706, 79, 50, 0 ),
85/* 50 */ V( 0x05cd, 48, 51, 0 ),
86/* 51 */ V( 0x04de, 50, 52, 0 ),
87/* 52 */ V( 0x040f, 50, 53, 0 ),
88/* 53 */ V( 0x0363, 51, 54, 0 ),
89/* 54 */ V( 0x02d4, 52, 55, 0 ),
90/* 55 */ V( 0x025c, 53, 56, 0 ),
91/* 56 */ V( 0x01f8, 54, 57, 0 ),
92/* 57 */ V( 0x01a4, 55, 58, 0 ),
93/* 58 */ V( 0x0160, 56, 59, 0 ),
94/* 59 */ V( 0x0125, 57, 60, 0 ),
95/* 60 */ V( 0x00f6, 58, 61, 0 ),
96/* 61 */ V( 0x00cb, 59, 62, 0 ),
97/* 62 */ V( 0x00ab, 61, 63, 0 ),
98/* 63 */ V( 0x008f, 61, 32, 0 ),
99/* 64 */ V( 0x5b12, 65, 65, 1 ),
100/* 65 */ V( 0x4d04, 80, 66, 0 ),
101/* 66 */ V( 0x412c, 81, 67, 0 ),
102/* 67 */ V( 0x37d8, 82, 68, 0 ),
103/* 68 */ V( 0x2fe8, 83, 69, 0 ),
104/* 69 */ V( 0x293c, 84, 70, 0 ),
105/* 70 */ V( 0x2379, 86, 71, 0 ),
106/* 71 */ V( 0x1edf, 87, 72, 0 ),
107/* 72 */ V( 0x1aa9, 87, 73, 0 ),
108/* 73 */ V( 0x174e, 72, 74, 0 ),
109/* 74 */ V( 0x1424, 72, 75, 0 ),
110/* 75 */ V( 0x119c, 74, 76, 0 ),
111/* 76 */ V( 0x0f6b, 74, 77, 0 ),
112/* 77 */ V( 0x0d51, 75, 78, 0 ),
113/* 78 */ V( 0x0bb6, 77, 79, 0 ),
114/* 79 */ V( 0x0a40, 77, 48, 0 ),
115/* 80 */ V( 0x5832, 80, 81, 1 ),
116/* 81 */ V( 0x4d1c, 88, 82, 0 ),
117/* 82 */ V( 0x438e, 89, 83, 0 ),
118/* 83 */ V( 0x3bdd, 90, 84, 0 ),
119/* 84 */ V( 0x34ee, 91, 85, 0 ),
120/* 85 */ V( 0x2eae, 92, 86, 0 ),
121/* 86 */ V( 0x299a, 93, 87, 0 ),
122/* 87 */ V( 0x2516, 86, 71, 0 ),
123/* 88 */ V( 0x5570, 88, 89, 1 ),
124/* 89 */ V( 0x4ca9, 95, 90, 0 ),
125/* 90 */ V( 0x44d9, 96, 91, 0 ),
126/* 91 */ V( 0x3e22, 97, 92, 0 ),
127/* 92 */ V( 0x3824, 99, 93, 0 ),
128/* 93 */ V( 0x32b4, 99, 94, 0 ),
129/* 94 */ V( 0x2e17, 93, 86, 0 ),
130/* 95 */ V( 0x56a8, 95, 96, 1 ),
131/* 96 */ V( 0x4f46, 101, 97, 0 ),
132/* 97 */ V( 0x47e5, 102, 98, 0 ),
133/* 98 */ V( 0x41cf, 103, 99, 0 ),
134/* 99 */ V( 0x3c3d, 104, 100, 0 ),
135/* 100 */ V( 0x375e, 99, 93, 0 ),
136/* 101 */ V( 0x5231, 105, 102, 0 ),
137/* 102 */ V( 0x4c0f, 106, 103, 0 ),
138/* 103 */ V( 0x4639, 107, 104, 0 ),
139/* 104 */ V( 0x415e, 103, 99, 0 ),
140/* 105 */ V( 0x5627, 105, 106, 1 ),
141/* 106 */ V( 0x50e7, 108, 107, 0 ),
142/* 107 */ V( 0x4b85, 109, 103, 0 ),
143/* 108 */ V( 0x5597, 110, 109, 0 ),
144/* 109 */ V( 0x504f, 111, 107, 0 ),
145/* 110 */ V( 0x5a10, 110, 111, 1 ),
146/* 111 */ V( 0x5522, 112, 109, 0 ),
147/* 112 */ V( 0x59eb, 112, 111, 1 )
148};