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libtiff/tools/tiffdump.c
Andrey Kiselev e7976c2ad8 Avoid warnings.
2004-09-03 08:16:01 +00:00

751 lines
20 KiB
C
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/* $Id: tiffdump.c,v 1.7 2004-09-03 08:16:01 dron Exp $ */
/*
* Copyright (c) 1988-1997 Sam Leffler
* Copyright (c) 1991-1997 Silicon Graphics, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that (i) the above copyright notices and this permission notice appear in
* all copies of the software and related documentation, and (ii) the names of
* Sam Leffler and Silicon Graphics may not be used in any advertising or
* publicity relating to the software without the specific, prior written
* permission of Sam Leffler and Silicon Graphics.
*
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include "tif_config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#if HAVE_FCNTL_H
# include <fcntl.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_IO_H
# include <io.h>
#endif
#include "tiffio.h"
#ifndef O_BINARY
#define O_BINARY 0
#endif
char* appname;
char* curfile;
int swabflag;
int bigendian;
int typeshift[13]; /* data type shift counts */
long typemask[13]; /* data type masks */
uint32 maxitems = 24; /* maximum indirect data items to print */
char* bytefmt = "%s%#02x"; /* BYTE */
char* sbytefmt = "%s%d"; /* SBYTE */
char* shortfmt = "%s%u"; /* SHORT */
char* sshortfmt = "%s%d"; /* SSHORT */
char* longfmt = "%s%lu"; /* LONG */
char* slongfmt = "%s%ld"; /* SLONG */
char* rationalfmt = "%s%g"; /* RATIONAL */
char* srationalfmt = "%s%g"; /* SRATIONAL */
char* floatfmt = "%s%g"; /* FLOAT */
char* doublefmt = "%s%g"; /* DOUBLE */
static void dump(int, off_t);
extern int optind;
extern char* optarg;
void
usage()
{
fprintf(stderr, "usage: %s [-h] [-o offset] [-m maxitems] file.tif ...\n", appname);
exit(-1);
}
int
main(int argc, char* argv[])
{
int one = 1, fd;
int multiplefiles = (argc > 1);
int c;
uint32 diroff = (uint32) 0;
bigendian = (*(char *)&one == 0);
appname = argv[0];
while ((c = getopt(argc, argv, "m:o:h")) != -1) {
switch (c) {
case 'h': /* print values in hex */
shortfmt = "%s%#x";
sshortfmt = "%s%#x";
longfmt = "%s%#lx";
slongfmt = "%s%#lx";
break;
case 'o':
diroff = (uint32) strtoul(optarg, NULL, 0);
break;
case 'm':
maxitems = strtoul(optarg, NULL, 0);
break;
default:
usage();
}
}
if (optind >= argc)
usage();
for (; optind < argc; optind++) {
fd = open(argv[optind], O_RDONLY|O_BINARY, 0);
if (fd < 0) {
perror(argv[0]);
return (-1);
}
if (multiplefiles)
printf("%s:\n", argv[optind]);
curfile = argv[optind];
swabflag = 0;
dump(fd, diroff);
close(fd);
}
return (0);
}
static TIFFHeader hdr;
#define ord(e) ((int)e)
/*
* Initialize shift & mask tables and byte
* swapping state according to the file
* byte order.
*/
static void
InitByteOrder(int magic)
{
typemask[0] = 0;
typemask[ord(TIFF_BYTE)] = 0xff;
typemask[ord(TIFF_SBYTE)] = 0xff;
typemask[ord(TIFF_UNDEFINED)] = 0xff;
typemask[ord(TIFF_SHORT)] = 0xffff;
typemask[ord(TIFF_SSHORT)] = 0xffff;
typemask[ord(TIFF_LONG)] = 0xffffffff;
typemask[ord(TIFF_SLONG)] = 0xffffffff;
typemask[ord(TIFF_RATIONAL)] = 0xffffffff;
typemask[ord(TIFF_SRATIONAL)] = 0xffffffff;
typemask[ord(TIFF_FLOAT)] = 0xffffffff;
typemask[ord(TIFF_DOUBLE)] = 0xffffffff;
typeshift[0] = 0;
typeshift[ord(TIFF_LONG)] = 0;
typeshift[ord(TIFF_SLONG)] = 0;
typeshift[ord(TIFF_RATIONAL)] = 0;
typeshift[ord(TIFF_SRATIONAL)] = 0;
typeshift[ord(TIFF_FLOAT)] = 0;
typeshift[ord(TIFF_DOUBLE)] = 0;
if (magic == TIFF_BIGENDIAN) {
typeshift[ord(TIFF_BYTE)] = 24;
typeshift[ord(TIFF_SBYTE)] = 24;
typeshift[ord(TIFF_SHORT)] = 16;
typeshift[ord(TIFF_SSHORT)] = 16;
swabflag = !bigendian;
} else {
typeshift[ord(TIFF_BYTE)] = 0;
typeshift[ord(TIFF_SBYTE)] = 0;
typeshift[ord(TIFF_SHORT)] = 0;
typeshift[ord(TIFF_SSHORT)] = 0;
swabflag = bigendian;
}
}
static off_t ReadDirectory(int, unsigned, off_t);
static void ReadError(char*);
static void Error(const char*, ...);
static void Fatal(const char*, ...);
static void
dump(int fd, off_t diroff)
{
unsigned i;
lseek(fd, (off_t) 0, 0);
if (read(fd, (char*) &hdr, sizeof (hdr)) != sizeof (hdr))
ReadError("TIFF header");
/*
* Setup the byte order handling.
*/
if (hdr.tiff_magic != TIFF_BIGENDIAN && hdr.tiff_magic != TIFF_LITTLEENDIAN)
Fatal("Not a TIFF file, bad magic number %u (%#x)",
hdr.tiff_magic, hdr.tiff_magic);
InitByteOrder(hdr.tiff_magic);
/*
* Swap header if required.
*/
if (swabflag) {
TIFFSwabShort(&hdr.tiff_version);
TIFFSwabLong(&hdr.tiff_diroff);
}
/*
* Now check version (if needed, it's been byte-swapped).
* Note that this isn't actually a version number, it's a
* magic number that doesn't change (stupid).
*/
if (hdr.tiff_version != TIFF_VERSION)
Fatal("Not a TIFF file, bad version number %u (%#x)",
hdr.tiff_version, hdr.tiff_version);
printf("Magic: %#x <%s-endian> Version: %#x\n",
hdr.tiff_magic,
hdr.tiff_magic == TIFF_BIGENDIAN ? "big" : "little",
hdr.tiff_version);
if (diroff == 0)
diroff = hdr.tiff_diroff;
for (i = 0; diroff != 0; i++) {
if (i > 0)
putchar('\n');
diroff = ReadDirectory(fd, i, diroff);
}
}
static int datawidth[] = {
0, /* nothing */
1, /* TIFF_BYTE */
1, /* TIFF_ASCII */
2, /* TIFF_SHORT */
4, /* TIFF_LONG */
8, /* TIFF_RATIONAL */
1, /* TIFF_SBYTE */
1, /* TIFF_UNDEFINED */
2, /* TIFF_SSHORT */
4, /* TIFF_SLONG */
8, /* TIFF_SRATIONAL */
4, /* TIFF_FLOAT */
8, /* TIFF_DOUBLE */
};
#define NWIDTHS (sizeof (datawidth) / sizeof (datawidth[0]))
static int TIFFFetchData(int, TIFFDirEntry*, void*);
static void PrintTag(FILE*, uint16);
static void PrintType(FILE*, uint16);
static void PrintData(FILE*, uint16, uint32, unsigned char*);
static void PrintByte(FILE*, const char*, TIFFDirEntry*);
static void PrintShort(FILE*, const char*, TIFFDirEntry*);
static void PrintLong(FILE*, const char*, TIFFDirEntry*);
/*
* Read the next TIFF directory from a file
* and convert it to the internal format.
* We read directories sequentially.
*/
static off_t
ReadDirectory(int fd, unsigned ix, off_t off)
{
register TIFFDirEntry *dp;
register unsigned int n;
TIFFDirEntry *dir = 0;
uint16 dircount;
int space;
uint32 nextdiroff = 0;
if (off == 0) /* no more directories */
goto done;
if (lseek(fd, (off_t) off, 0) != off) {
Fatal("Seek error accessing TIFF directory");
goto done;
}
if (read(fd, (char*) &dircount, sizeof (uint16)) != sizeof (uint16)) {
ReadError("directory count");
goto done;
}
if (swabflag)
TIFFSwabShort(&dircount);
dir = (TIFFDirEntry *)_TIFFmalloc(dircount * sizeof (TIFFDirEntry));
if (dir == NULL) {
Fatal("No space for TIFF directory");
goto done;
}
n = read(fd, (char*) dir, dircount*sizeof (*dp));
if (n != dircount*sizeof (*dp)) {
n /= sizeof (*dp);
Error(
"Could only read %u of %u entries in directory at offset %#lx",
n, dircount, (unsigned long) off);
dircount = n;
}
if (read(fd, (char*) &nextdiroff, sizeof (uint32)) != sizeof (uint32))
nextdiroff = 0;
if (swabflag)
TIFFSwabLong(&nextdiroff);
printf("Directory %u: offset %lu (%#lx) next %lu (%#lx)\n", ix,
(unsigned long) off, (unsigned long) off, nextdiroff, nextdiroff);
for (dp = dir, n = dircount; n > 0; n--, dp++) {
if (swabflag) {
TIFFSwabArrayOfShort(&dp->tdir_tag, 2);
TIFFSwabArrayOfLong(&dp->tdir_count, 2);
}
PrintTag(stdout, dp->tdir_tag);
putchar(' ');
PrintType(stdout, dp->tdir_type);
putchar(' ');
printf("%lu<", (unsigned long) dp->tdir_count);
if (dp->tdir_type >= NWIDTHS) {
printf(">\n");
continue;
}
space = dp->tdir_count * datawidth[dp->tdir_type];
if (space <= 4) {
switch (dp->tdir_type) {
case TIFF_FLOAT:
case TIFF_UNDEFINED:
case TIFF_ASCII: {
unsigned char data[4];
_TIFFmemcpy(data, &dp->tdir_offset, 4);
if (swabflag)
TIFFSwabLong((uint32*) data);
PrintData(stdout,
dp->tdir_type, dp->tdir_count, data);
break;
}
case TIFF_BYTE:
PrintByte(stdout, bytefmt, dp);
break;
case TIFF_SBYTE:
PrintByte(stdout, sbytefmt, dp);
break;
case TIFF_SHORT:
PrintShort(stdout, shortfmt, dp);
break;
case TIFF_SSHORT:
PrintShort(stdout, sshortfmt, dp);
break;
case TIFF_LONG:
PrintLong(stdout, longfmt, dp);
break;
case TIFF_SLONG:
PrintLong(stdout, slongfmt, dp);
break;
}
} else {
unsigned char *data = (unsigned char *)_TIFFmalloc(space);
if (data) {
if (TIFFFetchData(fd, dp, data)) {
if (dp->tdir_count > maxitems) {
PrintData(stdout, dp->tdir_type,
maxitems, data);
printf(" ...");
} else
PrintData(stdout, dp->tdir_type,
dp->tdir_count, data);
}
_TIFFfree(data);
} else
Error("No space for data for tag %u",
dp->tdir_tag);
}
printf(">\n");
}
done:
if (dir)
_TIFFfree((char *)dir);
return (nextdiroff);
}
static struct tagname {
uint16 tag;
char* name;
} tagnames[] = {
{ TIFFTAG_SUBFILETYPE, "SubFileType" },
{ TIFFTAG_OSUBFILETYPE, "OldSubFileType" },
{ TIFFTAG_IMAGEWIDTH, "ImageWidth" },
{ TIFFTAG_IMAGELENGTH, "ImageLength" },
{ TIFFTAG_BITSPERSAMPLE, "BitsPerSample" },
{ TIFFTAG_COMPRESSION, "Compression" },
{ TIFFTAG_PHOTOMETRIC, "Photometric" },
{ TIFFTAG_THRESHHOLDING, "Threshholding" },
{ TIFFTAG_CELLWIDTH, "CellWidth" },
{ TIFFTAG_CELLLENGTH, "CellLength" },
{ TIFFTAG_FILLORDER, "FillOrder" },
{ TIFFTAG_DOCUMENTNAME, "DocumentName" },
{ TIFFTAG_IMAGEDESCRIPTION, "ImageDescription" },
{ TIFFTAG_MAKE, "Make" },
{ TIFFTAG_MODEL, "Model" },
{ TIFFTAG_STRIPOFFSETS, "StripOffsets" },
{ TIFFTAG_ORIENTATION, "Orientation" },
{ TIFFTAG_SAMPLESPERPIXEL, "SamplesPerPixel" },
{ TIFFTAG_ROWSPERSTRIP, "RowsPerStrip" },
{ TIFFTAG_STRIPBYTECOUNTS, "StripByteCounts" },
{ TIFFTAG_MINSAMPLEVALUE, "MinSampleValue" },
{ TIFFTAG_MAXSAMPLEVALUE, "MaxSampleValue" },
{ TIFFTAG_XRESOLUTION, "XResolution" },
{ TIFFTAG_YRESOLUTION, "YResolution" },
{ TIFFTAG_PLANARCONFIG, "PlanarConfig" },
{ TIFFTAG_PAGENAME, "PageName" },
{ TIFFTAG_XPOSITION, "XPosition" },
{ TIFFTAG_YPOSITION, "YPosition" },
{ TIFFTAG_FREEOFFSETS, "FreeOffsets" },
{ TIFFTAG_FREEBYTECOUNTS, "FreeByteCounts" },
{ TIFFTAG_GRAYRESPONSEUNIT, "GrayResponseUnit" },
{ TIFFTAG_GRAYRESPONSECURVE,"GrayResponseCurve" },
{ TIFFTAG_GROUP3OPTIONS, "Group3Options" },
{ TIFFTAG_GROUP4OPTIONS, "Group4Options" },
{ TIFFTAG_RESOLUTIONUNIT, "ResolutionUnit" },
{ TIFFTAG_PAGENUMBER, "PageNumber" },
{ TIFFTAG_COLORRESPONSEUNIT,"ColorResponseUnit" },
{ TIFFTAG_TRANSFERFUNCTION, "TransferFunction" },
{ TIFFTAG_SOFTWARE, "Software" },
{ TIFFTAG_DATETIME, "DateTime" },
{ TIFFTAG_ARTIST, "Artist" },
{ TIFFTAG_HOSTCOMPUTER, "HostComputer" },
{ TIFFTAG_PREDICTOR, "Predictor" },
{ TIFFTAG_WHITEPOINT, "Whitepoint" },
{ TIFFTAG_PRIMARYCHROMATICITIES,"PrimaryChromaticities" },
{ TIFFTAG_COLORMAP, "Colormap" },
{ TIFFTAG_HALFTONEHINTS, "HalftoneHints" },
{ TIFFTAG_TILEWIDTH, "TileWidth" },
{ TIFFTAG_TILELENGTH, "TileLength" },
{ TIFFTAG_TILEOFFSETS, "TileOffsets" },
{ TIFFTAG_TILEBYTECOUNTS, "TileByteCounts" },
{ TIFFTAG_BADFAXLINES, "BadFaxLines" },
{ TIFFTAG_CLEANFAXDATA, "CleanFaxData" },
{ TIFFTAG_CONSECUTIVEBADFAXLINES, "ConsecutiveBadFaxLines" },
{ TIFFTAG_SUBIFD, "SubIFD" },
{ TIFFTAG_INKSET, "InkSet" },
{ TIFFTAG_INKNAMES, "InkNames" },
{ TIFFTAG_NUMBEROFINKS, "NumberOfInks" },
{ TIFFTAG_DOTRANGE, "DotRange" },
{ TIFFTAG_TARGETPRINTER, "TargetPrinter" },
{ TIFFTAG_EXTRASAMPLES, "ExtraSamples" },
{ TIFFTAG_SAMPLEFORMAT, "SampleFormat" },
{ TIFFTAG_SMINSAMPLEVALUE, "SMinSampleValue" },
{ TIFFTAG_SMAXSAMPLEVALUE, "SMaxSampleValue" },
{ TIFFTAG_JPEGPROC, "JPEGProcessingMode" },
{ TIFFTAG_JPEGIFOFFSET, "JPEGInterchangeFormat" },
{ TIFFTAG_JPEGIFBYTECOUNT, "JPEGInterchangeFormatLength" },
{ TIFFTAG_JPEGRESTARTINTERVAL,"JPEGRestartInterval" },
{ TIFFTAG_JPEGLOSSLESSPREDICTORS,"JPEGLosslessPredictors" },
{ TIFFTAG_JPEGPOINTTRANSFORM,"JPEGPointTransform" },
{ TIFFTAG_JPEGTABLES, "JPEGTables" },
{ TIFFTAG_JPEGQTABLES, "JPEGQTables" },
{ TIFFTAG_JPEGDCTABLES, "JPEGDCTables" },
{ TIFFTAG_JPEGACTABLES, "JPEGACTables" },
{ TIFFTAG_YCBCRCOEFFICIENTS,"YCbCrCoefficients" },
{ TIFFTAG_YCBCRSUBSAMPLING, "YCbCrSubsampling" },
{ TIFFTAG_YCBCRPOSITIONING, "YCbCrPositioning" },
{ TIFFTAG_REFERENCEBLACKWHITE, "ReferenceBlackWhite" },
{ TIFFTAG_REFPTS, "IgReferencePoints (Island Graphics)" },
{ TIFFTAG_REGIONTACKPOINT, "IgRegionTackPoint (Island Graphics)" },
{ TIFFTAG_REGIONWARPCORNERS,"IgRegionWarpCorners (Island Graphics)" },
{ TIFFTAG_REGIONAFFINE, "IgRegionAffine (Island Graphics)" },
{ TIFFTAG_MATTEING, "OBSOLETE Matteing (Silicon Graphics)" },
{ TIFFTAG_DATATYPE, "OBSOLETE DataType (Silicon Graphics)" },
{ TIFFTAG_IMAGEDEPTH, "ImageDepth (Silicon Graphics)" },
{ TIFFTAG_TILEDEPTH, "TileDepth (Silicon Graphics)" },
{ 32768, "OLD BOGUS Matteing tag" },
{ TIFFTAG_COPYRIGHT, "Copyright" },
{ TIFFTAG_ICCPROFILE, "ICC Profile" },
{ TIFFTAG_JBIGOPTIONS, "JBIG Options" },
{ TIFFTAG_STONITS, "StoNits" },
};
#define NTAGS (sizeof (tagnames) / sizeof (tagnames[0]))
static void
PrintTag(FILE* fd, uint16 tag)
{
register struct tagname *tp;
for (tp = tagnames; tp < &tagnames[NTAGS]; tp++)
if (tp->tag == tag) {
fprintf(fd, "%s (%u)", tp->name, tag);
return;
}
fprintf(fd, "%u (%#x)", tag, tag);
}
static void
PrintType(FILE* fd, uint16 type)
{
static char *typenames[] = {
"0",
"BYTE",
"ASCII",
"SHORT",
"LONG",
"RATIONAL",
"SBYTE",
"UNDEFINED",
"SSHORT",
"SLONG",
"SRATIONAL",
"FLOAT",
"DOUBLE"
};
#define NTYPES (sizeof (typenames) / sizeof (typenames[0]))
if (type < NTYPES)
fprintf(fd, "%s (%u)", typenames[type], type);
else
fprintf(fd, "%u (%#x)", type, type);
}
#undef NTYPES
static void
PrintByte(FILE* fd, const char* fmt, TIFFDirEntry* dp)
{
char* sep = "";
if (hdr.tiff_magic != TIFF_LITTLEENDIAN) {
switch ((int)dp->tdir_count) {
case 4: fprintf(fd, fmt, sep, dp->tdir_offset&0xff);
sep = " ";
case 3: fprintf(fd, fmt, sep, (dp->tdir_offset>>8)&0xff);
sep = " ";
case 2: fprintf(fd, fmt, sep, (dp->tdir_offset>>16)&0xff);
sep = " ";
case 1: fprintf(fd, fmt, sep, dp->tdir_offset>>24);
}
} else {
switch ((int)dp->tdir_count) {
case 4: fprintf(fd, fmt, sep, dp->tdir_offset>>24);
sep = " ";
case 3: fprintf(fd, fmt, sep, (dp->tdir_offset>>16)&0xff);
sep = " ";
case 2: fprintf(fd, fmt, sep, (dp->tdir_offset>>8)&0xff);
sep = " ";
case 1: fprintf(fd, fmt, sep, dp->tdir_offset&0xff);
}
}
}
static void
PrintShort(FILE* fd, const char* fmt, TIFFDirEntry* dp)
{
char *sep = "";
if (hdr.tiff_magic != TIFF_LITTLEENDIAN) {
switch (dp->tdir_count) {
case 2: fprintf(fd, fmt, sep, dp->tdir_offset&0xffff);
sep = " ";
case 1: fprintf(fd, fmt, sep, dp->tdir_offset>>16);
}
} else {
switch (dp->tdir_count) {
case 2: fprintf(fd, fmt, sep, dp->tdir_offset>>16);
sep = " ";
case 1: fprintf(fd, fmt, sep, dp->tdir_offset&0xffff);
}
}
}
static void
PrintLong(FILE* fd, const char* fmt, TIFFDirEntry* dp)
{
fprintf(fd, fmt, "", (long) dp->tdir_offset);
}
#include <ctype.h>
static void
PrintASCII(FILE* fd, uint32 cc, const unsigned char* cp)
{
for (; cc > 0; cc--, cp++) {
const char* tp;
if (isprint(*cp)) {
fputc(*cp, fd);
continue;
}
for (tp = "\tt\bb\rr\nn\vv"; *tp; tp++)
if (*tp++ == *cp)
break;
if (*tp)
fprintf(fd, "\\%c", *tp);
else if (*cp)
fprintf(fd, "\\%03o", *cp);
else
fprintf(fd, "\\0");
}
}
static void
PrintData(FILE* fd, uint16 type, uint32 count, unsigned char* data)
{
char* sep = "";
switch (type) {
case TIFF_BYTE:
while (count-- > 0)
fprintf(fd, bytefmt, sep, *data++), sep = " ";
break;
case TIFF_SBYTE:
while (count-- > 0)
fprintf(fd, sbytefmt, sep, *(char *)data++), sep = " ";
break;
case TIFF_UNDEFINED:
while (count-- > 0)
fprintf(fd, bytefmt, sep, *data++), sep = " ";
break;
case TIFF_ASCII:
PrintASCII(fd, count, data);
break;
case TIFF_SHORT: {
register uint16 *wp = (uint16*)data;
while (count-- > 0)
fprintf(fd, shortfmt, sep, *wp++), sep = " ";
break;
}
case TIFF_SSHORT: {
register int16 *wp = (int16*)data;
while (count-- > 0)
fprintf(fd, sshortfmt, sep, *wp++), sep = " ";
break;
}
case TIFF_LONG: {
register uint32 *lp = (uint32*)data;
while (count-- > 0) {
fprintf(fd, longfmt, sep, (unsigned long) *lp++);
sep = " ";
}
break;
}
case TIFF_SLONG: {
register int32 *lp = (int32*)data;
while (count-- > 0)
fprintf(fd, slongfmt, sep, (long) *lp++), sep = " ";
break;
}
case TIFF_RATIONAL: {
register uint32 *lp = (uint32*)data;
while (count-- > 0) {
if (lp[1] == 0)
fprintf(fd, "%sNan (%lu/%lu)", sep,
(unsigned long) lp[0],
(unsigned long) lp[1]);
else
fprintf(fd, rationalfmt, sep,
(double)lp[0] / (double)lp[1]);
sep = " ";
lp += 2;
}
break;
}
case TIFF_SRATIONAL: {
register int32 *lp = (int32*)data;
while (count-- > 0) {
if (lp[1] == 0)
fprintf(fd, "%sNan (%ld/%ld)", sep,
(long) lp[0], (long) lp[1]);
else
fprintf(fd, srationalfmt, sep,
(double)lp[0] / (double)lp[1]);
sep = " ";
lp += 2;
}
break;
}
case TIFF_FLOAT: {
register float *fp = (float *)data;
while (count-- > 0)
fprintf(fd, floatfmt, sep, *fp++), sep = " ";
break;
}
case TIFF_DOUBLE: {
register double *dp = (double *)data;
while (count-- > 0)
fprintf(fd, doublefmt, sep, *dp++), sep = " ";
break;
}
}
}
/*
* Fetch a contiguous directory item.
*/
static int
TIFFFetchData(int fd, TIFFDirEntry* dir, void* cp)
{
int cc, w;
w = (dir->tdir_type < NWIDTHS ? datawidth[dir->tdir_type] : 0);
cc = dir->tdir_count * w;
if (lseek(fd, (off_t)dir->tdir_offset, 0) == (off_t)dir->tdir_offset &&
read(fd, cp, cc) == cc) {
if (swabflag) {
switch (dir->tdir_type) {
case TIFF_SHORT:
case TIFF_SSHORT:
TIFFSwabArrayOfShort((uint16*) cp,
dir->tdir_count);
break;
case TIFF_LONG:
case TIFF_SLONG:
case TIFF_FLOAT:
TIFFSwabArrayOfLong((uint32*) cp,
dir->tdir_count);
break;
case TIFF_RATIONAL:
TIFFSwabArrayOfLong((uint32*) cp,
2*dir->tdir_count);
break;
case TIFF_DOUBLE:
TIFFSwabArrayOfDouble((double*) cp,
dir->tdir_count);
break;
}
}
return (cc);
}
Error("Error while reading data for tag %u", dir->tdir_tag);
return (0);
}
static void
ReadError(char* what)
{
Fatal("Error while reading %s", what);
}
#include <stdarg.h>
static void
vError(FILE* fd, const char* fmt, va_list ap)
{
fprintf(fd, "%s: ", curfile);
vfprintf(fd, fmt, ap);
fprintf(fd, ".\n");
}
static void
Error(const char* fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vError(stderr, fmt, ap);
va_end(ap);
}
static void
Fatal(const char* fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vError(stderr, fmt, ap);
va_end(ap);
exit(-1);
}
/* vim: set ts=8 sts=8 sw=8 noet: */
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