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Fixed problem with unused data comparing as per bug

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http://bugzilla.remotesensing.org/show_bug.cgi?id=349
`-z' option now can be used to set the number of reported different bytes.
This commit is contained in:
Andrey Kiselev 2003-06-18 09:57:55 +00:00
parent 2f4d3521b4
commit adc20ad9b0
1 changed files with 28 additions and 11 deletions
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39
tools/tiffcmp.c
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@ -1,4 +1,4 @@
/* $Header: /cvs/maptools/cvsroot/libtiff/tools/tiffcmp.c,v 1.3 2001-06-29 02:48:00 warmerda Exp $ */
/* $Header: /cvs/maptools/cvsroot/libtiff/tools/tiffcmp.c,v 1.4 2003-06-18 09:57:55 dron Exp $ */
/*
* Copyright (c) 1988-1997 Sam Leffler
@ -37,6 +37,7 @@ static uint16 samplesperpixel = 1;
static uint32 imagewidth;
static uint32 imagelength;
static void usage(void);
static int tiffcmp(TIFF*, TIFF*);
static int cmptags(TIFF*, TIFF*);
static void ContigCompare(int, uint32, unsigned char*, unsigned char*, int);
@ -44,27 +45,21 @@ static void PrintDiff(uint32, int, uint32, int, int);
static void SeparateCompare(int, int, uint32, unsigned char*, unsigned char*);
static void eof(const char*, uint32, int);
static void
usage(void)
{
fprintf(stderr, "Usage: tiffcmp [-l] [-t] [-z] file1 file2\n");
exit(-3);
}
int
main(int argc, char* argv[])
{
TIFF *tif1, *tif2;
int c, dirnum;
extern int optind;
extern char* optarg;
while ((c = getopt(argc, argv, "ltz")) != -1)
while ((c = getopt(argc, argv, "ltz:")) != -1)
switch (c) {
case 'l':
stopondiff = 0;
break;
case 'z':
stopondiff += 100;
stopondiff = atoi(optarg);
break;
case 't':
stoponfirsttag = 0;
@ -99,6 +94,28 @@ main(int argc, char* argv[])
return (0);
}
char* stuff[] = {
"usage: tiffcmp [options] file1 file2",
"where options are:",
" -l list each byte of image data that differs between the files",
" -z # list specified number of bytes that differs between the files",
" -t ignore any differences in directory tags",
NULL
};
static void
usage(void)
{
char buf[BUFSIZ];
int i;
setbuf(stderr, buf);
fprintf(stderr, "%s\n\n", TIFFGetVersion());
for (i = 0; stuff[i] != NULL; i++)
fprintf(stderr, "%s\n", stuff[i]);
exit(-1);
}
#define checkEOF(tif, row, sample) { \
eof(TIFFFileName(tif), row, sample); \
goto bad; \
@ -345,7 +362,7 @@ PrintDiff(uint32 row, int sample, uint32 pix, int w1, int w2)
mask1 = ~((-1)<<bps);
s = (8-bps);
mask2 = mask1<<s;
for (; mask2; mask2 >>= bps, s -= bps, pix++) {
for (; mask2 && pix < imagewidth; mask2 >>= bps, s -= bps, pix++) {
if ((w1 & mask2) ^ (w2 & mask2)) {
printf(
"Scanline %lu, pixel %lu, sample %d: %01x %01x\n",