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
|
/*====================================================================*
- Copyright (C) 2001 Leptonica. All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- 1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the following
- disclaimer in the documentation and/or other materials
- provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*====================================================================*/
/*
* printsplitimage.c
*
* Syntax: printsplitimage filein nx ny [printer]
*
* nx = number of horizontal tiles
* ny = number of vertical tiles
*
* If printer is not specified, the only action is that the
* image is split into a set of tiles, and these are written
* out as a set of compressed (level 3) Postscript files.
* The images in the PostScript files are scaled to each fill
* an 8.5 x 11 inch page, up to the FILLING_FACTOR fraction
* in each direction.
*
* If printer is specified, these are printed on separate pages,
* because some printers cannot print multi-page Postscript of images.
*
* If your system does not have lpr, it likely has lp. You can run
* printsplitimage to make the PostScript files, and print them with lp:
* lp -d <printer> /tmp/lept/split/image0.ps
* lp -d <printer> /tmp/lept/split/image1.ps
* ...
* To print in color, see prog/printimage.c.
*
* ***************************************************************
* N.B. If a printer is specified, this program invokes lpr via
* "system'. It could pose a security vulnerability if used
* as a service in a production environment. Consequently,
* this program should only be used for debug and testing.
* ***************************************************************
*/
#ifdef HAVE_CONFIG_H
#include <config_auto.h>
#endif /* HAVE_CONFIG_H */
#include "allheaders.h"
#define USE_COMPRESSED 1
/* fill factor on 8.5 x 11 inch output page */
static const l_float32 FILL_FACTOR = 0.95;
int main(int argc,
char **argv)
{
char *filein, *fname, *printer;
char buf[512];
l_int32 nx, ny, i, w, h, ws, hs, n, ignore, index;
l_float32 scale;
FILE *fp;
PIX *pixs, *pixt, *pixr;
PIXA *pixa;
SARRAY *sa;
static char mainName[] = "printsplitimage";
if (argc != 4 && argc != 5)
return ERROR_INT(" Syntax: printsplitimage filein nx ny [printer]",
mainName, 1);
filein = argv[1];
nx = atoi(argv[2]);
ny = atoi(argv[3]);
printer = (argc == 5) ? argv[4] : NULL;
lept_stderr(
"\n!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n"
" Warning: this program should only be used for testing,\n"
" and not in a production environment, because of a\n"
" potential vulnerability with the 'system' call.\n"
"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n\n");
setLeptDebugOK(1);
lept_rmdir("lept/split");
lept_mkdir("lept/split");
if ((pixs = pixRead(filein)) == NULL)
return ERROR_INT("pixs not made", mainName, 1);
pixGetDimensions(pixs, &ws, &hs, NULL);
if (ny * ws > nx * hs) {
pixr = pixRotate90(pixs, 1);
pixa = pixaSplitPix(pixr, ny, nx, 0, 0);
} else {
pixr = pixClone(pixs);
pixa = pixaSplitPix(pixr, nx, ny, 0, 0);
}
pixDestroy(&pixr);
n = pixaGetCount(pixa);
sa = sarrayCreate(n);
for (i = 0; i < n; i++) {
pixt = pixaGetPix(pixa, i, L_CLONE);
pixGetDimensions(pixt, &w, &h, NULL);
scale = L_MIN(FILL_FACTOR * 2550 / w, FILL_FACTOR * 3300 / h);
snprintf(buf, sizeof(buf), "image%d.ps", i);
fname = genPathname("/tmp/lept/split", buf);
lept_stderr("fname: %s\n", fname);
sarrayAddString(sa, fname, L_INSERT);
#if USE_COMPRESSED
index = 0;
pixWriteCompressedToPS(pixt, fname, (l_int32)(300. / scale), 3, &index);
index = 0; /* write each out to a separate file */
#else /* uncompressed, level 1 */
fp = lept_fopen(fname, "wb+");
pixWriteStreamPS(fp, pixt, NULL, 300, scale);
lept_fclose(fp);
#endif /* USE_COMPRESSED */
pixDestroy(&pixt);
}
if (argc == 5) {
for (i = 0; i < n; i++) {
fname = sarrayGetString(sa, i, L_NOCOPY);
snprintf(buf, sizeof(buf), "lpr -P%s %s &", printer, fname);
ignore = system(buf);
}
}
sarrayDestroy(&sa);
pixaDestroy(&pixa);
pixDestroy(&pixs);
return 0;
}
|
GitWeb