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
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
|
/* pamfile.c - describe a portable anymap
**
** Copyright (C) 1991 by Jef Poskanzer.
**
** Permission to use, copy, modify, and distribute this software and its
** documentation for any purpose and without fee is hereby granted, provided
** that the above copyright notice appear in all copies and that both that
** copyright notice and this permission notice appear in supporting
** documentation. This software is provided "as is" without express or
** implied warranty.
*/
#include "pm_c_util.h"
#include "mallocvar.h"
#include "nstring.h"
#include "shhopt.h"
#include "pam.h"
struct cmdlineInfo {
/* All the information the user supplied in the command line,
in a form easy for the program to use.
*/
int inputFileCount; /* Number of input files */
const char ** inputFilespec; /* Filespecs of input files */
unsigned int allimages; /* -allimages or -count */
unsigned int count; /* -count */
unsigned int comments; /* -comments */
};
static void
parseCommandLine(int argc, char ** argv,
struct cmdlineInfo * const cmdlineP) {
/*----------------------------------------------------------------------------
Note that the file spec array we return is stored in the storage that
was passed to as as the argv array.
-----------------------------------------------------------------------------*/
optEntry * option_def;
/* Instructions to optParseOptions3 on how to parse our options.
*/
optStruct3 opt;
unsigned int option_def_index;
MALLOCARRAY_NOFAIL(option_def, 100);
option_def_index = 0; /* incremented by OPTENT3 */
OPTENT3(0, "allimages", OPT_FLAG, NULL, &cmdlineP->allimages, 0);
OPTENT3(0, "count", OPT_FLAG, NULL, &cmdlineP->count, 0);
OPTENT3(0, "comments", OPT_FLAG, NULL, &cmdlineP->comments, 0);
opt.opt_table = option_def;
opt.short_allowed = FALSE; /* We have no short (old-fashioned) options */
opt.allowNegNum = FALSE; /* We have no parms that are negative numbers */
optParseOptions3(&argc, argv, opt, sizeof(opt), 0);
/* Uses and sets argc, argv, and some of *cmdlineP and others */
cmdlineP->inputFilespec = (const char **)&argv[1];
cmdlineP->inputFileCount = argc - 1;
}
static void
dumpHeader(struct pam const pam) {
switch (pam.format) {
case PAM_FORMAT:
printf("PAM, %d by %d by %d maxval %ld\n",
pam.width, pam.height, pam.depth, pam.maxval);
printf(" Tuple type: %s\n", pam.tuple_type);
break;
case PBM_FORMAT:
printf("PBM plain, %d by %d\n", pam.width, pam.height );
break;
case RPBM_FORMAT:
printf("PBM raw, %d by %d\n", pam.width, pam.height);
break;
case PGM_FORMAT:
printf("PGM plain, %d by %d maxval %ld\n",
pam.width, pam.height, pam.maxval);
break;
case RPGM_FORMAT:
printf("PGM raw, %d by %d maxval %ld\n",
pam.width, pam.height, pam.maxval);
break;
case PPM_FORMAT:
printf("PPM plain, %d by %d maxval %ld\n",
pam.width, pam.height, pam.maxval);
break;
case RPPM_FORMAT:
printf("PPM raw, %d by %d maxval %ld\n",
pam.width, pam.height, pam.maxval);
break;
}
}
static void
dumpComments(const char * const comments) {
const char * p;
bool startOfLine;
printf("Comments:\n");
for (p = &comments[0], startOfLine = TRUE; *p; ++p) {
if (startOfLine)
printf(" #");
fputc(*p, stdout);
if (*p == '\n')
startOfLine = TRUE;
else
startOfLine = FALSE;
}
if (!startOfLine)
fputc('\n', stdout);
}
static void
doOneImage(const char * const name,
unsigned int const imageDoneCount,
FILE * const fileP,
bool const allimages,
bool const justCount,
bool const wantComments,
bool * const eofP) {
struct pam pam;
const char * comments;
enum pm_check_code checkRetval;
pam.comment_p = &comments;
pnm_readpaminit(fileP, &pam, PAM_STRUCT_SIZE(comment_p));
if (!justCount) {
if (allimages)
printf("%s:\tImage %d:\t", name, imageDoneCount);
else
printf("%s:\t", name);
dumpHeader(pam);
if (wantComments)
dumpComments(comments);
}
strfree(comments);
pnm_checkpam(&pam, PM_CHECK_BASIC, &checkRetval);
if (allimages) {
tuple * tuplerow;
unsigned int row;
tuplerow = pnm_allocpamrow(&pam);
for (row = 0; row < pam.height; ++row)
pnm_readpamrow(&pam, tuplerow);
pnm_freepamrow(tuplerow);
pnm_nextimage(fileP, eofP);
}
}
static void
describeOneFile(const char * const name,
FILE * const fileP,
bool const allimages,
bool const justCount,
bool const wantComments) {
/*----------------------------------------------------------------------------
Describe one image stream (file). Its name, for purposes of display,
is 'name'. The file is open as *fileP and positioned to the beginning.
'allimages' means report on every image in the stream and read all of
every image from it, as opposed to reading just the header of the first
image and reporting just on that.
'justCount' means don't tell anything about the stream except how
many images are in it. Pretty useless without 'allimages'.
'wantComments' means to show the comments from the image header.
Meaningless with 'justCount'.
-----------------------------------------------------------------------------*/
unsigned int imageDoneCount;
/* Number of images we've processed so far */
bool eof;
eof = FALSE;
imageDoneCount = 0;
while (!eof && (imageDoneCount < 1 || allimages)) {
doOneImage(name, imageDoneCount, fileP,
allimages, justCount, wantComments,
&eof);
++imageDoneCount;
}
if (justCount)
printf("%s:\t%u images\n", name, imageDoneCount);
}
int
main(int argc, char *argv[]) {
struct cmdlineInfo cmdline;
pnm_init(&argc, argv);
parseCommandLine(argc, argv, &cmdline);
if (cmdline.inputFileCount == 0)
describeOneFile("stdin", stdin, cmdline.allimages || cmdline.count,
cmdline.count, cmdline.comments);
else {
unsigned int i;
for (i = 0; i < cmdline.inputFileCount; ++i) {
FILE * ifP;
ifP = pm_openr(cmdline.inputFilespec[i]);
describeOneFile(cmdline.inputFilespec[i], ifP,
cmdline.allimages || cmdline.count,
cmdline.count, cmdline.comments);
pm_close(ifP);
}
}
return 0;
}
|
