1 /* Copyright (C) 1992, 1998, 1999 artofcode LLC. All rights reserved.
2
3 This program is free software; you can redistribute it and/or modify it
4 under the terms of the GNU General Public License as published by the
5 Free Software Foundation; either version 2 of the License, or (at your
6 option) any later version.
7
8 This program is distributed in the hope that it will be useful, but
9 WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 General Public License for more details.
12
13 You should have received a copy of the GNU General Public License along
14 with this program; if not, write to the Free Software Foundation, Inc.,
15 59 Temple Place, Suite 330, Boston, MA, 02111-1307.
16
17 */
18
19 /*$Id: scfetab.c,v 1.2.6.1.2.1 2003/01/17 00:49:05 giles Exp $ */
20 /* Tables for CCITTFaxEncode filter */
21 #include "std.h"
22 #include "scommon.h" /* for scf.h */
23 #include "scf.h"
24
25 /* We make this a separate file so that it can be used by */
26 /* the program that generates the tables for the CCITTFaxDecode filter. */
27
28 /* ------ Run encoding tables ------ */
29
30 /* Abbreviate hce_entry to make the file smaller. */
31 #define RUN(c,len) hce_entry(c,len)
32
33 /* Define the end-of-line code. */
34 /* Code in scfd.c and scfdgen.c knows that the run value is 1. */
35 const cfe_run cf_run_eol =
36 RUN(run_eol_code_value, run_eol_code_length);
37
38 /* Define the 1-D code that signals uncompressed data. */
39 const cfe_run cf1_run_uncompressed =
40 RUN(0xf, 12);
41
42 /* Define the 2-D run codes. */
43 const cfe_run cf2_run_pass =
44 RUN(cf2_run_pass_value, cf2_run_pass_length);
45 const cfe_run cf2_run_vertical[7] =
46 {
47 RUN(0x3, 7),
48 RUN(0x3, 6),
49 RUN(0x3, 3),
50 RUN(0x1, 1),
51 RUN(0x2, 3),
52 RUN(0x2, 6),
53 RUN(0x2, 7)
54 };
55 const cfe_run cf2_run_horizontal =
56 RUN(cf2_run_horizontal_value, cf2_run_horizontal_length);
57 const cfe_run cf2_run_uncompressed =
58 RUN(0xf, 10);
59
60 /* EOL codes for Group 3 2-D. */
61 /* Code in scfd.c knows that these are 0...01x. */
62 const cfe_run cf2_run_eol_1d =
63 RUN((run_eol_code_value << 1) + 1, run_eol_code_length + 1);
64 const cfe_run cf2_run_eol_2d =
65 RUN((run_eol_code_value << 1) + 0, run_eol_code_length + 1);
66
67 /* White run codes. */
68 const cf_runs cf_white_runs =
69 {
70 { /* Termination codes */
71 RUN(0x35, 8), RUN(0x7, 6), RUN(0x7, 4), RUN(0x8, 4),
72 RUN(0xb, 4), RUN(0xc, 4), RUN(0xe, 4), RUN(0xf, 4),
73 RUN(0x13, 5), RUN(0x14, 5), RUN(0x7, 5), RUN(0x8, 5),
74 RUN(0x8, 6), RUN(0x3, 6), RUN(0x34, 6), RUN(0x35, 6),
75 RUN(0x2a, 6), RUN(0x2b, 6), RUN(0x27, 7), RUN(0xc, 7),
76 RUN(0x8, 7), RUN(0x17, 7), RUN(0x3, 7), RUN(0x4, 7),
77 RUN(0x28, 7), RUN(0x2b, 7), RUN(0x13, 7), RUN(0x24, 7),
78 RUN(0x18, 7), RUN(0x2, 8), RUN(0x3, 8), RUN(0x1a, 8),
79 RUN(0x1b, 8), RUN(0x12, 8), RUN(0x13, 8), RUN(0x14, 8),
80 RUN(0x15, 8), RUN(0x16, 8), RUN(0x17, 8), RUN(0x28, 8),
81 RUN(0x29, 8), RUN(0x2a, 8), RUN(0x2b, 8), RUN(0x2c, 8),
82 RUN(0x2d, 8), RUN(0x4, 8), RUN(0x5, 8), RUN(0xa, 8),
83 RUN(0xb, 8), RUN(0x52, 8), RUN(0x53, 8), RUN(0x54, 8),
84 RUN(0x55, 8), RUN(0x24, 8), RUN(0x25, 8), RUN(0x58, 8),
85 RUN(0x59, 8), RUN(0x5a, 8), RUN(0x5b, 8), RUN(0x4a, 8),
86 RUN(0x4b, 8), RUN(0x32, 8), RUN(0x33, 8), RUN(0x34, 8)
87 },
88 { /* Make-up codes */
89 RUN(0, 0) /* dummy */ , RUN(0x1b, 5), RUN(0x12, 5), RUN(0x17, 6),
90 RUN(0x37, 7), RUN(0x36, 8), RUN(0x37, 8), RUN(0x64, 8),
91 RUN(0x65, 8), RUN(0x68, 8), RUN(0x67, 8), RUN(0xcc, 9),
92 RUN(0xcd, 9), RUN(0xd2, 9), RUN(0xd3, 9), RUN(0xd4, 9),
93 RUN(0xd5, 9), RUN(0xd6, 9), RUN(0xd7, 9), RUN(0xd8, 9),
94 RUN(0xd9, 9), RUN(0xda, 9), RUN(0xdb, 9), RUN(0x98, 9),
95 RUN(0x99, 9), RUN(0x9a, 9), RUN(0x18, 6), RUN(0x9b, 9),
96 RUN(0x8, 11), RUN(0xc, 11), RUN(0xd, 11), RUN(0x12, 12),
97 RUN(0x13, 12), RUN(0x14, 12), RUN(0x15, 12), RUN(0x16, 12),
98 RUN(0x17, 12), RUN(0x1c, 12), RUN(0x1d, 12), RUN(0x1e, 12),
99 RUN(0x1f, 12)
100 }
101 };
102
103 /* Black run codes. */
104 const cf_runs cf_black_runs =
105 {
106 { /* Termination codes */
107 RUN(0x37, 10), RUN(0x2, 3), RUN(0x3, 2), RUN(0x2, 2),
108 RUN(0x3, 3), RUN(0x3, 4), RUN(0x2, 4), RUN(0x3, 5),
109 RUN(0x5, 6), RUN(0x4, 6), RUN(0x4, 7), RUN(0x5, 7),
110 RUN(0x7, 7), RUN(0x4, 8), RUN(0x7, 8), RUN(0x18, 9),
111 RUN(0x17, 10), RUN(0x18, 10), RUN(0x8, 10), RUN(0x67, 11),
112 RUN(0x68, 11), RUN(0x6c, 11), RUN(0x37, 11), RUN(0x28, 11),
113 RUN(0x17, 11), RUN(0x18, 11), RUN(0xca, 12), RUN(0xcb, 12),
114 RUN(0xcc, 12), RUN(0xcd, 12), RUN(0x68, 12), RUN(0x69, 12),
115 RUN(0x6a, 12), RUN(0x6b, 12), RUN(0xd2, 12), RUN(0xd3, 12),
116 RUN(0xd4, 12), RUN(0xd5, 12), RUN(0xd6, 12), RUN(0xd7, 12),
117 RUN(0x6c, 12), RUN(0x6d, 12), RUN(0xda, 12), RUN(0xdb, 12),
118 RUN(0x54, 12), RUN(0x55, 12), RUN(0x56, 12), RUN(0x57, 12),
119 RUN(0x64, 12), RUN(0x65, 12), RUN(0x52, 12), RUN(0x53, 12),
120 RUN(0x24, 12), RUN(0x37, 12), RUN(0x38, 12), RUN(0x27, 12),
121 RUN(0x28, 12), RUN(0x58, 12), RUN(0x59, 12), RUN(0x2b, 12),
122 RUN(0x2c, 12), RUN(0x5a, 12), RUN(0x66, 12), RUN(0x67, 12)
123 },
124 { /* Make-up codes. */
125 RUN(0, 0) /* dummy */ , RUN(0xf, 10), RUN(0xc8, 12), RUN(0xc9, 12),
126 RUN(0x5b, 12), RUN(0x33, 12), RUN(0x34, 12), RUN(0x35, 12),
127 RUN(0x6c, 13), RUN(0x6d, 13), RUN(0x4a, 13), RUN(0x4b, 13),
128 RUN(0x4c, 13), RUN(0x4d, 13), RUN(0x72, 13), RUN(0x73, 13),
129 RUN(0x74, 13), RUN(0x75, 13), RUN(0x76, 13), RUN(0x77, 13),
130 RUN(0x52, 13), RUN(0x53, 13), RUN(0x54, 13), RUN(0x55, 13),
131 RUN(0x5a, 13), RUN(0x5b, 13), RUN(0x64, 13), RUN(0x65, 13),
132 RUN(0x8, 11), RUN(0xc, 11), RUN(0xd, 11), RUN(0x12, 12),
133 RUN(0x13, 12), RUN(0x14, 12), RUN(0x15, 12), RUN(0x16, 12),
134 RUN(0x17, 12), RUN(0x1c, 12), RUN(0x1d, 12), RUN(0x1e, 12),
135 RUN(0x1f, 12)
136 }
137 };
138
139 /* Uncompressed codes. */
140 const cfe_run cf_uncompressed[6] =
141 {
142 RUN(1, 1),
143 RUN(1, 2),
144 RUN(1, 3),
145 RUN(1, 4),
146 RUN(1, 5),
147 RUN(1, 6)
148 };
149
150 /* Uncompressed exit codes. */
151 const cfe_run cf_uncompressed_exit[10] =
152 {
153 RUN(2, 8), RUN(3, 8),
154 RUN(2, 9), RUN(3, 9),
155 RUN(2, 10), RUN(3, 10),
156 RUN(2, 11), RUN(3, 11),
157 RUN(2, 12), RUN(3, 12)
158 };
159
160 /* Some C compilers insist on having executable code in every file.... */
161 void scfetab_dummy(P0()); /* for picky compilers */
162 void
scfetab_dummy(void)163 scfetab_dummy(void)
164 {
165 }
166