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- /* Copyright (C) 1992, 1998, 1999 Aladdin Enterprises. All rights reserved.
-
- This file is part of AFPL Ghostscript.
-
- AFPL Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author or
- distributor accepts any responsibility for the consequences of using it, or
- for whether it serves any particular purpose or works at all, unless he or
- she says so in writing. Refer to the Aladdin Free Public License (the
- "License") for full details.
-
- Every copy of AFPL Ghostscript must include a copy of the License, normally
- in a plain ASCII text file named PUBLIC. The License grants you the right
- to copy, modify and redistribute AFPL Ghostscript, but only under certain
- conditions described in the License. Among other things, the License
- requires that the copyright notice and this notice be preserved on all
- copies.
- */
-
- /*$Id: scfetab.c,v 1.2 2000/09/19 19:00:48 lpd Exp $ */
- /* Tables for CCITTFaxEncode filter */
- #include "std.h"
- #include "scommon.h" /* for scf.h */
- #include "scf.h"
-
- /* We make this a separate file so that it can be used by */
- /* the program that generates the tables for the CCITTFaxDecode filter. */
-
- /* ------ Run encoding tables ------ */
-
- /* Abbreviate hce_entry to make the file smaller. */
- #define RUN(c,len) hce_entry(c,len)
-
- /* Define the end-of-line code. */
- /* Code in scfd.c and scfdgen.c knows that the run value is 1. */
- const cfe_run cf_run_eol =
- RUN(run_eol_code_value, run_eol_code_length);
-
- /* Define the 1-D code that signals uncompressed data. */
- const cfe_run cf1_run_uncompressed =
- RUN(0xf, 12);
-
- /* Define the 2-D run codes. */
- const cfe_run cf2_run_pass =
- RUN(cf2_run_pass_value, cf2_run_pass_length);
- const cfe_run cf2_run_vertical[7] =
- {
- RUN(0x3, 7),
- RUN(0x3, 6),
- RUN(0x3, 3),
- RUN(0x1, 1),
- RUN(0x2, 3),
- RUN(0x2, 6),
- RUN(0x2, 7)
- };
- const cfe_run cf2_run_horizontal =
- RUN(cf2_run_horizontal_value, cf2_run_horizontal_length);
- const cfe_run cf2_run_uncompressed =
- RUN(0xf, 10);
-
- /* EOL codes for Group 3 2-D. */
- /* Code in scfd.c knows that these are 0...01x. */
- const cfe_run cf2_run_eol_1d =
- RUN((run_eol_code_value << 1) + 1, run_eol_code_length + 1);
- const cfe_run cf2_run_eol_2d =
- RUN((run_eol_code_value << 1) + 0, run_eol_code_length + 1);
-
- /* White run codes. */
- const cf_runs cf_white_runs =
- {
- { /* Termination codes */
- RUN(0x35, 8), RUN(0x7, 6), RUN(0x7, 4), RUN(0x8, 4),
- RUN(0xb, 4), RUN(0xc, 4), RUN(0xe, 4), RUN(0xf, 4),
- RUN(0x13, 5), RUN(0x14, 5), RUN(0x7, 5), RUN(0x8, 5),
- RUN(0x8, 6), RUN(0x3, 6), RUN(0x34, 6), RUN(0x35, 6),
- RUN(0x2a, 6), RUN(0x2b, 6), RUN(0x27, 7), RUN(0xc, 7),
- RUN(0x8, 7), RUN(0x17, 7), RUN(0x3, 7), RUN(0x4, 7),
- RUN(0x28, 7), RUN(0x2b, 7), RUN(0x13, 7), RUN(0x24, 7),
- RUN(0x18, 7), RUN(0x2, 8), RUN(0x3, 8), RUN(0x1a, 8),
- RUN(0x1b, 8), RUN(0x12, 8), RUN(0x13, 8), RUN(0x14, 8),
- RUN(0x15, 8), RUN(0x16, 8), RUN(0x17, 8), RUN(0x28, 8),
- RUN(0x29, 8), RUN(0x2a, 8), RUN(0x2b, 8), RUN(0x2c, 8),
- RUN(0x2d, 8), RUN(0x4, 8), RUN(0x5, 8), RUN(0xa, 8),
- RUN(0xb, 8), RUN(0x52, 8), RUN(0x53, 8), RUN(0x54, 8),
- RUN(0x55, 8), RUN(0x24, 8), RUN(0x25, 8), RUN(0x58, 8),
- RUN(0x59, 8), RUN(0x5a, 8), RUN(0x5b, 8), RUN(0x4a, 8),
- RUN(0x4b, 8), RUN(0x32, 8), RUN(0x33, 8), RUN(0x34, 8)
- },
- { /* Make-up codes */
- RUN(0, 0) /* dummy */ , RUN(0x1b, 5), RUN(0x12, 5), RUN(0x17, 6),
- RUN(0x37, 7), RUN(0x36, 8), RUN(0x37, 8), RUN(0x64, 8),
- RUN(0x65, 8), RUN(0x68, 8), RUN(0x67, 8), RUN(0xcc, 9),
- RUN(0xcd, 9), RUN(0xd2, 9), RUN(0xd3, 9), RUN(0xd4, 9),
- RUN(0xd5, 9), RUN(0xd6, 9), RUN(0xd7, 9), RUN(0xd8, 9),
- RUN(0xd9, 9), RUN(0xda, 9), RUN(0xdb, 9), RUN(0x98, 9),
- RUN(0x99, 9), RUN(0x9a, 9), RUN(0x18, 6), RUN(0x9b, 9),
- RUN(0x8, 11), RUN(0xc, 11), RUN(0xd, 11), RUN(0x12, 12),
- RUN(0x13, 12), RUN(0x14, 12), RUN(0x15, 12), RUN(0x16, 12),
- RUN(0x17, 12), RUN(0x1c, 12), RUN(0x1d, 12), RUN(0x1e, 12),
- RUN(0x1f, 12)
- }
- };
-
- /* Black run codes. */
- const cf_runs cf_black_runs =
- {
- { /* Termination codes */
- RUN(0x37, 10), RUN(0x2, 3), RUN(0x3, 2), RUN(0x2, 2),
- RUN(0x3, 3), RUN(0x3, 4), RUN(0x2, 4), RUN(0x3, 5),
- RUN(0x5, 6), RUN(0x4, 6), RUN(0x4, 7), RUN(0x5, 7),
- RUN(0x7, 7), RUN(0x4, 8), RUN(0x7, 8), RUN(0x18, 9),
- RUN(0x17, 10), RUN(0x18, 10), RUN(0x8, 10), RUN(0x67, 11),
- RUN(0x68, 11), RUN(0x6c, 11), RUN(0x37, 11), RUN(0x28, 11),
- RUN(0x17, 11), RUN(0x18, 11), RUN(0xca, 12), RUN(0xcb, 12),
- RUN(0xcc, 12), RUN(0xcd, 12), RUN(0x68, 12), RUN(0x69, 12),
- RUN(0x6a, 12), RUN(0x6b, 12), RUN(0xd2, 12), RUN(0xd3, 12),
- RUN(0xd4, 12), RUN(0xd5, 12), RUN(0xd6, 12), RUN(0xd7, 12),
- RUN(0x6c, 12), RUN(0x6d, 12), RUN(0xda, 12), RUN(0xdb, 12),
- RUN(0x54, 12), RUN(0x55, 12), RUN(0x56, 12), RUN(0x57, 12),
- RUN(0x64, 12), RUN(0x65, 12), RUN(0x52, 12), RUN(0x53, 12),
- RUN(0x24, 12), RUN(0x37, 12), RUN(0x38, 12), RUN(0x27, 12),
- RUN(0x28, 12), RUN(0x58, 12), RUN(0x59, 12), RUN(0x2b, 12),
- RUN(0x2c, 12), RUN(0x5a, 12), RUN(0x66, 12), RUN(0x67, 12)
- },
- { /* Make-up codes. */
- RUN(0, 0) /* dummy */ , RUN(0xf, 10), RUN(0xc8, 12), RUN(0xc9, 12),
- RUN(0x5b, 12), RUN(0x33, 12), RUN(0x34, 12), RUN(0x35, 12),
- RUN(0x6c, 13), RUN(0x6d, 13), RUN(0x4a, 13), RUN(0x4b, 13),
- RUN(0x4c, 13), RUN(0x4d, 13), RUN(0x72, 13), RUN(0x73, 13),
- RUN(0x74, 13), RUN(0x75, 13), RUN(0x76, 13), RUN(0x77, 13),
- RUN(0x52, 13), RUN(0x53, 13), RUN(0x54, 13), RUN(0x55, 13),
- RUN(0x5a, 13), RUN(0x5b, 13), RUN(0x64, 13), RUN(0x65, 13),
- RUN(0x8, 11), RUN(0xc, 11), RUN(0xd, 11), RUN(0x12, 12),
- RUN(0x13, 12), RUN(0x14, 12), RUN(0x15, 12), RUN(0x16, 12),
- RUN(0x17, 12), RUN(0x1c, 12), RUN(0x1d, 12), RUN(0x1e, 12),
- RUN(0x1f, 12)
- }
- };
-
- /* Uncompressed codes. */
- const cfe_run cf_uncompressed[6] =
- {
- RUN(1, 1),
- RUN(1, 2),
- RUN(1, 3),
- RUN(1, 4),
- RUN(1, 5),
- RUN(1, 6)
- };
-
- /* Uncompressed exit codes. */
- const cfe_run cf_uncompressed_exit[10] =
- {
- RUN(2, 8), RUN(3, 8),
- RUN(2, 9), RUN(3, 9),
- RUN(2, 10), RUN(3, 10),
- RUN(2, 11), RUN(3, 11),
- RUN(2, 12), RUN(3, 12)
- };
-
- /* Some C compilers insist on having executable code in every file.... */
- void scfetab_dummy(P0()); /* for picky compilers */
- void
- scfetab_dummy(void)
- {
- }
-