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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/*
* pbmtoibm23xx -- print pbm file on IBM 23XX printers
* Copyright (C) 2004 Jorrit Fahlke <jorrit@jorrit.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 or later as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
/*
* This program is primarily based on the description of Brothers PPDS
* emulation (see
* http://www.brother.de/download/send_file.cfm?file_name=guide_ibmpro.pdf).
* However, there are some differences. Their document states that
* ESC J does linefeed in terms of 1/216" -- my printer clearly does
* it in terms of 1/240". Also, the quick and the slow mode for
* double density printing really makes a difference on my printer,
* the result of printing tiger.ps in quick double density mode was
* worse than printing it in single density mode.
*
* If anyone Knows of any better documentation of the language used by
* the IBM 23XX or PPDS in general, please send a mail to
* Jö Fahlke <jorrit@jorrit.de>.
*
* All the graphics modes of the printer differ only in the resolution
* in x they provide (and how quick they do their job). They print a
* line of 8 pixels height and variable widths. The bitlines within
* the line are 1/60" apart, so that is the resolution you can
* normally achieve in y. But the printer is able to do line feeds in
* terms of 1/240", so the trick to print in higher resolutions is to
* print in several interleaved passes, and do a line feed of 1/240"
* or 1/120" in between.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "pm_c_util.h"
#include "pbm.h"
#include "shhopt.h"
#include "mallocvar.h"
struct cmdlineInfo {
unsigned char graph_mode;
unsigned int passes;
unsigned int nFiles;
const char ** inputFile;
};
bool sent_xon; /* We have send x-on to enable the printer already */
static void
parseCommandLine(int argc, char ** const argv,
struct cmdlineInfo * const cmdlineP) {
optStruct3 opt;
optEntry option_def[100];
unsigned int option_def_index = 0;
unsigned int xresSpec, yresSpec;
unsigned int xres, yres;
unsigned int slowMode;
OPTENT3(0, "xres", OPT_UINT, &xres, &xresSpec, 0);
OPTENT3(0, "yres", OPT_UINT, &yres, &yresSpec, 0);
OPTENT3(0, "slow", OPT_FLAG, NULL, &slowMode, 0);
opt.opt_table = option_def;
opt.short_allowed = 0;
opt.allowNegNum = 0;
pm_optParseOptions3(&argc, argv, opt, sizeof(opt), 0);
/* Uses and sets argc, argv, and some of *cmdlineP and others. */
if (!xresSpec)
pm_error("You must specify the -xres option");
if (!yresSpec)
pm_error("You must specify the -yres option");
switch (xres) {
case 60: cmdlineP->graph_mode = 'K'; break;
case 120: cmdlineP->graph_mode = slowMode ? 'L' : 'Y'; break;
case 240: cmdlineP->graph_mode = 'Z'; break;
default:
pm_error("Please specify 60, 120, or 240 for -xres");
}
if (yres != 60 && yres != 120 && yres != 240)
pm_error("Please specify 60, 120, or 240 for -yres");
cmdlineP->passes = yres / 60;
cmdlineP->nFiles = MAX(argc-1, 1);
MALLOCARRAY_NOFAIL(cmdlineP->inputFile, cmdlineP->nFiles);
if (argc-1 < 1)
cmdlineP->inputFile[0] = "-";
else {
unsigned int i;
for (i = 0; i < argc-1; ++i)
cmdlineP->inputFile[i] = argv[i+1];
}
}
/* Read all pbm images from a filehandle and print them */
static void
process_handle(FILE * const fh,
unsigned char const graph_mode,
unsigned int const passes) {
int eof;
while(pbm_nextimage(fh, &eof), eof == 0) {
/* pbm header dats */
int cols, rows, format;
/* iteration variables */
unsigned int x, y;
unsigned int bitline; /* pixel line within a single printing line */
unsigned int pass;
/* here we build the to-be-printed data */
unsigned char *output; /* for reading one row from the file */
bit *row;
/* Enable printer in case it is disabled, do it only once */
if(!sent_xon) {
putchar(0x11);
sent_xon = TRUE;
}
pbm_readpbminit(fh, &cols, &rows, &format);
output = malloc(sizeof(*output) * cols * passes);
if(output == NULL)
pm_error("Out of memory");
row = pbm_allocrow(cols);
for(y = 0; y < rows; y += 8 * passes) {
memset(output, 0, sizeof(*output) * cols * passes);
for(bitline = 0; bitline < 8; ++bitline)
for(pass = 0; pass < passes; ++pass)
/* don't read beyond the end of the image if
height is not a multiple of passes
*/
if(y + bitline * passes + pass < rows) {
pbm_readpbmrow(fh, row, cols, format);
for(x = 0; x < cols; ++x)
if(row[x] == PBM_BLACK)
output[cols * pass + x] |= 1 << (7 - bitline);
}
for(pass = 0; pass < passes; ++pass){
/* write graphics data */
putchar(0x1b); putchar(graph_mode);
putchar(cols & 0xff); putchar((cols >> 8) & 0xff);
fwrite(output + pass * cols, sizeof(*output), cols, stdout);
/* Carriage return */
putchar('\r');
/* move one pixel down */
putchar(0x1b); putchar('J'); putchar(4 / passes);
}
/* move one line - passes pixel down */
putchar(0x1b); putchar('J'); putchar(24 - 4);
}
putchar(0x0c); /* Form-feed */
pbm_freerow(row);
free(output);
}
}
int
main(int argc,char **argv) {
struct cmdlineInfo cmdline;
unsigned int i;
pbm_init(&argc, argv);
parseCommandLine(argc, argv, &cmdline);
sent_xon = FALSE;
for (i = 0; i < cmdline.nFiles; ++i) {
FILE *ifP;
pm_message("opening '%s'", cmdline.inputFile[i]);
ifP = pm_openr(cmdline.inputFile[i]);
process_handle(ifP, cmdline.graph_mode, cmdline.passes);
pm_close(ifP);
}
free(cmdline.inputFile);
return 0;
}
|
