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/*
* pgmtoimgv.c
* PGM to Pilot Image Viewer pdb converter.
*
* Copyright (C) 1997 Eric A. Howe
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Authors: Eric A. Howe (mu@trends.net)
*/
#include <mine/slop.h>
MU_ID("$Mu: imgvtopgm/pgmtoimgv.c 1.28 1999/05/09 08:27:51 $")
#include <stdlib.h>
#include <sys/stat.h>
#include <mine/ipdb.h>
/*
* These tend to live in different places on different systems so I'll
* just do it by hand and assume you have a proper libc.
*/
extern int optind;
extern char *optarg;
extern int getopt(int, char *const *, const char *);
static int
version(const char *me)
{
printf("%s %s\n", me, VERSION);
return EXIT_SUCCESS;
}
#define OPTS "4hvt:n:cmu"
static char *usefmt = "%s [-hv] [-n note] [-t title] [-{c|m|u}] [in [out]]\n";
static char *explain[] = {
"\tConvert a pgm file to a Pilot Image Viewer pdb file.",
"",
"\t-4 4 depth bitmap.",
"\t-h Display this usage message and exit.",
"\t-v Display the version number and exit.",
"\t-c Produce a compressed image.",
"\t-m Produce a compressed image only if it is smaller.",
"\t-u Produce an uncompressed image.",
"\t-t title Specify the pdb name, the default is unnamed.",
"\t-n note Read the image note from note.",
NULL
};
static int
usage(const char *me, int ret)
{
char **s;
printf(usefmt, me);
for(s = &explain[0]; *s != NULL; ++s)
printf("%s\n", *s);
return ret;
}
static int
readimg(IPDB *pdb, FILE *fp, int depth)
{
gray *g = NULL;
gray maxval;
int w, h, fmt;
int status, i;
pgm_readpgminit(fp, &w, &h, &maxval, &fmt);
if((g = calloc(1, w*h*sizeof(gray))) == NULL)
return ENOMEM;
for(i = 0; i < h; ++i)
pgm_readpgmrow(fp, &g[w*i], w, maxval, fmt);
if (depth)
status = ipdb_insert_g16image(pdb, w, h, g);
else
status = ipdb_insert_gimage(pdb, w, h, g);
free(g);
return status;
}
static int
readtxt(IPDB *pdb, char *notefile)
{
struct stat st;
char *s;
FILE *fp;
int n;
if(notefile == NULL)
return 0;
memset((void *)&st, '\0', sizeof(st));
if(stat(notefile, &st) != 0)
return errno;
fp = pm_openr(notefile);
if((s = calloc(1, st.st_size + 1)) == NULL)
return ENOMEM;
if(fread(s, 1, st.st_size, fp) != (size_t)st.st_size)
return EIO;
pm_close(fp);
for(n = strlen(s) - 1; n >= 0 && s[n] == '\n'; --n)
s[n] = '\0';
ipdb_insert_text(pdb, s);
return 0;
}
int
main(int argc, char **argv)
{
char *me, *name, *notefile;
int i, status, comp, depth = 0;
IPDB *pdb;
FILE *in, *out;
if((me = strrchr(*argv, '/')) == NULL)
me = *argv;
else
++me;
comp = IPDB_COMPMAYBE;
name = NULL;
notefile = NULL;
pgm_init(&argc, argv);
while((i = getopt(argc, argv, OPTS)) != EOF) {
switch(i) {
case '4': depth = 4; break;
case 'h': exit(usage(me, EXIT_SUCCESS)); break;
case 'v': exit(version(me)); break;
case 't': name = optarg; break;
case 'c': comp = IPDB_COMPRESS; break;
case 'u': comp = IPDB_NOCOMPRESS; break;
case 'm': comp = IPDB_COMPMAYBE; break;
case 'n': notefile = optarg; break;
default: exit(usage(me, EXIT_FAILURE)); break;
}
}
if(name == NULL)
name = argv[optind] == NULL ? "unnamed" : argv[optind];
in = argv[optind] == NULL ? stdin : pm_openr(argv[optind++]);
out = argv[optind] == NULL ? stdout : pm_openw(argv[optind]);
if((pdb = ipdb_alloc(name)) == NULL)
pm_error("%s.", ipdb_err(ENOMEM));
if((status = readimg(pdb, in, depth)) != 0)
pm_error("PGM read error: %s.", ipdb_err(status));
if((status = readtxt(pdb, notefile)) != 0)
pm_error("Note read error: %s.", ipdb_err(status));
if((status = ipdb_write(pdb, comp, out)) != 0)
pm_error("PDB write error: %s.", ipdb_err(status));
if(comp == IPDB_COMPMAYBE && !ipdb_compressed(pdb))
pm_message("Image too complex to be compressed.");
pdb = ipdb_free(pdb);
if(in != stdin)
pm_close(in);
if(out != stdout)
pm_close(out);
return EXIT_SUCCESS;
}
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