/*
* Read the next TIFF directory from a file
* and convert it to the internal format.
* We read directories sequentially.
*/
static uint64
ReadDirectory(int fd, unsigned int ix, uint64 off)
{
uint16 dircount;
uint32 direntrysize;
void* dirmem = NULL;
uint64 nextdiroff = 0;
uint32 n;
uint8* dp;
if (off == 0) /* no more directories */
goto done;
if (_TIFF_lseek_f(fd, (_TIFF_off_t)off, SEEK_SET) != (_TIFF_off_t)off) {
Fatal("Seek error accessing TIFF directory");
goto done;
}
if (!bigtiff) {
if (read(fd, (char*) &dircount, sizeof (uint16)) != sizeof (uint16)) {
ReadError("directory count");
goto done;
}
if (swabflag)
TIFFSwabShort(&dircount);
direntrysize = 12;
} else {
uint64 dircount64 = 0;
if (read(fd, (char*) &dircount64, sizeof (uint64)) != sizeof (uint64)) {
ReadError("directory count");
goto done;
}
if (swabflag)
TIFFSwabLong8(&dircount64);
if (dircount64>0xFFFF) {
Error("Sanity check on directory count failed");
goto done;
}
dircount = (uint16)dircount64;
direntrysize = 20;
}
dirmem = _TIFFmalloc(TIFFSafeMultiply(tmsize_t,dircount,direntrysize));
if (dirmem == NULL) {
Fatal("No space for TIFF directory");
goto done;
}
n = read(fd, (char*) dirmem, dircount*direntrysize);
if (n != dircount*direntrysize) {
n /= direntrysize;
Error(
#if defined(__WIN32__) && defined(_MSC_VER)
"Could only read %lu of %u entries in directory at offset %#I64x",
(unsigned long)n, dircount, (unsigned __int64) off);
#else
"Could only read %lu of %u entries in directory at offset %#llx",
(unsigned long)n, dircount, (unsigned long long) off);
#endif
dircount = n;
nextdiroff = 0;
} else {
static uint64
_tiffSeekProc(thandle_t fd, uint64 off, int whence)
{
fd_as_handle_union_t fdh;
_TIFF_off_t off_io = (_TIFF_off_t) off;
if ((uint64) off_io != off)
{
errno=EINVAL;
return (uint64) -1; /* this is really gross */
}
fdh.h = fd;
return((uint64)_TIFF_lseek_f(fdh.fd,off_io,whence));
}
static void
dump(int fd, uint64 diroff)
{
unsigned i, j;
uint64* visited_diroff = NULL;
unsigned int count_visited_dir = 0;
_TIFF_lseek_f(fd, (_TIFF_off_t) 0, 0);
if (read(fd, (char*) &hdr, sizeof (TIFFHeaderCommon)) != sizeof (TIFFHeaderCommon))
ReadError("TIFF header");
if (hdr.common.tiff_magic != TIFF_BIGENDIAN
&& hdr.common.tiff_magic != TIFF_LITTLEENDIAN &&
#if HOST_BIGENDIAN
/* MDI is sensitive to the host byte order, unlike TIFF */
MDI_BIGENDIAN != hdr.common.tiff_magic
#else
MDI_LITTLEENDIAN != hdr.common.tiff_magic
#endif
) {
Fatal("Not a TIFF or MDI file, bad magic number %u (%#x)",
hdr.common.tiff_magic, hdr.common.tiff_magic);
}
if (hdr.common.tiff_magic == TIFF_BIGENDIAN
|| hdr.common.tiff_magic == MDI_BIGENDIAN)
swabflag = !bigendian;
else
swabflag = bigendian;
if (swabflag)
TIFFSwabShort(&hdr.common.tiff_version);
if (hdr.common.tiff_version==42)
{
if (read(fd, (char*) &hdr.classic.tiff_diroff, 4) != 4)
ReadError("TIFF header");
if (swabflag)
TIFFSwabLong(&hdr.classic.tiff_diroff);
printf("Magic: %#x <%s-endian> Version: %#x <%s>\n",
hdr.classic.tiff_magic,
hdr.classic.tiff_magic == TIFF_BIGENDIAN ? "big" : "little",
42,"ClassicTIFF");
if (diroff == 0)
diroff = hdr.classic.tiff_diroff;
}
else if (hdr.common.tiff_version==43)
{
if (read(fd, (char*) &hdr.big.tiff_offsetsize, 12) != 12)
ReadError("TIFF header");
if (swabflag)
{
TIFFSwabShort(&hdr.big.tiff_offsetsize);
TIFFSwabShort(&hdr.big.tiff_unused);
TIFFSwabLong8(&hdr.big.tiff_diroff);
}
printf("Magic: %#x <%s-endian> Version: %#x <%s>\n",
hdr.big.tiff_magic,
hdr.big.tiff_magic == TIFF_BIGENDIAN ? "big" : "little",
43,"BigTIFF");
printf("OffsetSize: %#x Unused: %#x\n",
hdr.big.tiff_offsetsize,hdr.big.tiff_unused);
if (diroff == 0)
diroff = hdr.big.tiff_diroff;
bigtiff = 1;
}
else
Fatal("Not a TIFF file, bad version number %u (%#x)",
hdr.common.tiff_version, hdr.common.tiff_version);
for (i = 0; diroff != 0; i++) {
for(j=0; j<count_visited_dir; j++)
{
if( visited_diroff[j] == diroff )
{
free(visited_diroff);
Fatal("Cycle detected in chaining of TIFF directories!");
}
}
{
size_t alloc_size;
alloc_size=TIFFSafeMultiply(tmsize_t,(count_visited_dir + 1),
sizeof(uint64));
if (alloc_size == 0)
{
if (visited_diroff)
free(visited_diroff);
visited_diroff = 0;
}
else
{
visited_diroff = (uint64*) realloc(visited_diroff,alloc_size);
}
}
if( !visited_diroff )
Fatal("Out of memory");
visited_diroff[count_visited_dir] = diroff;
count_visited_dir ++;
if (i > 0)
putchar('\n');
diroff = ReadDirectory(fd, i, diroff);
}
if( visited_diroff )
free(visited_diroff);
}
int
main(int argc, char* argv[])
{
uint32 width = 0, length = 0, linebytes, bufsize;
uint32 nbands = 1; /* number of bands in input image*/
_TIFF_off_t hdr_size = 0; /* size of the header to skip */
TIFFDataType dtype = TIFF_BYTE;
int16 depth = 1; /* bytes per pixel in input image */
int swab = 0; /* byte swapping flag */
InterleavingType interleaving = 0; /* interleaving type flag */
uint32 rowsperstrip = (uint32) -1;
uint16 photometric = PHOTOMETRIC_MINISBLACK;
uint16 config = PLANARCONFIG_CONTIG;
uint16 fillorder = FILLORDER_LSB2MSB;
int fd;
char *outfilename = NULL;
TIFF *out;
uint32 row, col, band;
int c;
unsigned char *buf = NULL, *buf1 = NULL;
#if !HAVE_DECL_OPTARG
extern int optind;
extern char* optarg;
#endif
while ((c = getopt(argc, argv, "c:r:H:w:l:b:d:LMp:si:o:h")) != -1) {
switch (c) {
case 'c': /* compression scheme */
if (!processCompressOptions(optarg))
usage();
break;
case 'r': /* rows/strip */
rowsperstrip = atoi(optarg);
break;
case 'H': /* size of input image file header */
hdr_size = atoi(optarg);
break;
case 'w': /* input image width */
width = atoi(optarg);
break;
case 'l': /* input image length */
length = atoi(optarg);
break;
case 'b': /* number of bands in input image */
nbands = atoi(optarg);
break;
case 'd': /* type of samples in input image */
if (strncmp(optarg, "byte", 4) == 0)
dtype = TIFF_BYTE;
else if (strncmp(optarg, "short", 5) == 0)
dtype = TIFF_SHORT;
else if (strncmp(optarg, "long", 4) == 0)
dtype = TIFF_LONG;
else if (strncmp(optarg, "sbyte", 5) == 0)
dtype = TIFF_SBYTE;
else if (strncmp(optarg, "sshort", 6) == 0)
dtype = TIFF_SSHORT;
else if (strncmp(optarg, "slong", 5) == 0)
dtype = TIFF_SLONG;
else if (strncmp(optarg, "float", 5) == 0)
dtype = TIFF_FLOAT;
else if (strncmp(optarg, "double", 6) == 0)
dtype = TIFF_DOUBLE;
else
dtype = TIFF_BYTE;
depth = TIFFDataWidth(dtype);
break;
case 'L': /* input has lsb-to-msb fillorder */
fillorder = FILLORDER_LSB2MSB;
break;
case 'M': /* input has msb-to-lsb fillorder */
fillorder = FILLORDER_MSB2LSB;
break;
case 'p': /* photometric interpretation */
if (strncmp(optarg, "miniswhite", 10) == 0)
photometric = PHOTOMETRIC_MINISWHITE;
else if (strncmp(optarg, "minisblack", 10) == 0)
photometric = PHOTOMETRIC_MINISBLACK;
else if (strncmp(optarg, "rgb", 3) == 0)
photometric = PHOTOMETRIC_RGB;
else if (strncmp(optarg, "cmyk", 4) == 0)
photometric = PHOTOMETRIC_SEPARATED;
else if (strncmp(optarg, "ycbcr", 5) == 0)
photometric = PHOTOMETRIC_YCBCR;
else if (strncmp(optarg, "cielab", 6) == 0)
photometric = PHOTOMETRIC_CIELAB;
else if (strncmp(optarg, "icclab", 6) == 0)
photometric = PHOTOMETRIC_ICCLAB;
else if (strncmp(optarg, "itulab", 6) == 0)
photometric = PHOTOMETRIC_ITULAB;
else
photometric = PHOTOMETRIC_MINISBLACK;
break;
case 's': /* do we need to swap bytes? */
swab = 1;
break;
case 'i': /* type of interleaving */
if (strncmp(optarg, "pixel", 4) == 0)
interleaving = PIXEL;
else if (strncmp(optarg, "band", 6) == 0)
interleaving = BAND;
else
interleaving = 0;
break;
case 'o':
outfilename = optarg;
break;
case 'h':
usage();
default:
break;
}
}
if (argc - optind < 2)
usage();
fd = open(argv[optind], O_RDONLY|O_BINARY, 0);
if (fd < 0) {
fprintf(stderr, "%s: %s: Cannot open input file.\n",
argv[0], argv[optind]);
return (-1);
}
if (guessSize(fd, dtype, hdr_size, nbands, swab, &width, &length) < 0)
return 1;
if (outfilename == NULL)
outfilename = argv[optind+1];
out = TIFFOpen(outfilename, "w");
if (out == NULL) {
fprintf(stderr, "%s: %s: Cannot open file for output.\n",
argv[0], outfilename);
return (-1);
}
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, length);
TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, nbands);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, depth * 8);
TIFFSetField(out, TIFFTAG_FILLORDER, fillorder);
TIFFSetField(out, TIFFTAG_PLANARCONFIG, config);
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric);
switch (dtype) {
case TIFF_BYTE:
case TIFF_SHORT:
case TIFF_LONG:
TIFFSetField(out, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_UINT);
break;
case TIFF_SBYTE:
case TIFF_SSHORT:
case TIFF_SLONG:
TIFFSetField(out, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_INT);
break;
case TIFF_FLOAT:
case TIFF_DOUBLE:
TIFFSetField(out, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_IEEEFP);
break;
default:
TIFFSetField(out, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_VOID);
break;
}
if (compression == (uint16) -1)
compression = COMPRESSION_PACKBITS;
TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
switch (compression) {
case COMPRESSION_JPEG:
if (photometric == PHOTOMETRIC_RGB
&& jpegcolormode == JPEGCOLORMODE_RGB)
photometric = PHOTOMETRIC_YCBCR;
TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality);
TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode);
break;
case COMPRESSION_LZW:
case COMPRESSION_DEFLATE:
if (predictor != 0)
TIFFSetField(out, TIFFTAG_PREDICTOR, predictor);
break;
}
switch(interleaving) {
case BAND: /* band interleaved data */
linebytes = width * depth;
buf = (unsigned char *)_TIFFmalloc(linebytes);
break;
case PIXEL: /* pixel interleaved data */
default:
linebytes = width * nbands * depth;
break;
}
bufsize = width * nbands * depth;
buf1 = (unsigned char *)_TIFFmalloc(bufsize);
rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip);
if (rowsperstrip > length) {
rowsperstrip = length;
}
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip );
_TIFF_lseek_f(fd, hdr_size, SEEK_SET); /* Skip the file header */
for (row = 0; row < length; row++) {
switch(interleaving) {
case BAND: /* band interleaved data */
for (band = 0; band < nbands; band++) {
if (_TIFF_lseek_f(fd,
hdr_size + (length*band+row)*linebytes,
SEEK_SET) == (_TIFF_off_t)-1) {
fprintf(stderr,
"%s: %s: scanline %lu: seek error.\n",
argv[0], argv[optind],
(unsigned long) row);
break;
}
if (read(fd, buf, linebytes) < 0) {
fprintf(stderr,
"%s: %s: scanline %lu: Read error.\n",
argv[0], argv[optind],
(unsigned long) row);
break;
}
if (swab) /* Swap bytes if needed */
swapBytesInScanline(buf, width, dtype);
for (col = 0; col < width; col++)
memcpy(buf1 + (col*nbands+band)*depth,
buf + col * depth, depth);
}
break;
case PIXEL: /* pixel interleaved data */
default:
if (read(fd, buf1, bufsize) < 0) {
fprintf(stderr,
"%s: %s: scanline %lu: Read error.\n",
argv[0], argv[optind],
(unsigned long) row);
break;
}
if (swab) /* Swap bytes if needed */
swapBytesInScanline(buf1, width, dtype);
break;
}
if (TIFFWriteScanline(out, buf1, row, 0) < 0) {
fprintf(stderr, "%s: %s: scanline %lu: Write error.\n",
argv[0], outfilename, (unsigned long) row);
break;
}
}
if (buf)
_TIFFfree(buf);
if (buf1)
_TIFFfree(buf1);
TIFFClose(out);
return (0);
}
static int
guessSize(int fd, TIFFDataType dtype, _TIFF_off_t hdr_size, uint32 nbands,
int swab, uint32 *width, uint32 *length)
{
const float longt = 40.0; /* maximum possible height/width ratio */
char *buf1, *buf2;
_TIFF_stat_s filestat;
uint32 w, h, scanlinesize, imagesize;
uint32 depth = TIFFDataWidth(dtype);
float cor_coef = 0, tmp;
if (_TIFF_fstat_f(fd, &filestat) == -1) {
fprintf(stderr, "Failed to obtain file size.\n");
return -1;
}
if (filestat.st_size < hdr_size) {
fprintf(stderr, "Too large header size specified.\n");
return -1;
}
imagesize = (filestat.st_size - hdr_size) / nbands / depth;
if (*width != 0 && *length == 0) {
fprintf(stderr, "Image height is not specified.\n");
*length = imagesize / *width;
fprintf(stderr, "Height is guessed as %lu.\n",
(unsigned long)*length);
return 1;
} else if (*width == 0 && *length != 0) {
fprintf(stderr, "Image width is not specified.\n");
*width = imagesize / *length;
fprintf(stderr, "Width is guessed as %lu.\n",
(unsigned long)*width);
return 1;
} else if (*width == 0 && *length == 0) {
unsigned int fail = 0;
fprintf(stderr, "Image width and height are not specified.\n");
w = (uint32) sqrt(imagesize / longt);
if( w == 0 )
{
fprintf(stderr, "Too small image size.\n");
return -1;
}
for (;
w < sqrt(imagesize * longt);
w++) {
if (imagesize % w == 0) {
scanlinesize = w * depth;
buf1 = _TIFFmalloc(scanlinesize);
buf2 = _TIFFmalloc(scanlinesize);
h = imagesize / w;
do {
if (_TIFF_lseek_f(fd, hdr_size + (int)(h/2)*scanlinesize,
SEEK_SET) == (_TIFF_off_t)-1) {
fprintf(stderr, "seek error.\n");
fail=1;
break;
}
if (read(fd, buf1, scanlinesize) !=
(long) scanlinesize) {
fprintf(stderr, "read error.\n");
fail=1;
break;
}
if (read(fd, buf2, scanlinesize) !=
(long) scanlinesize) {
fprintf(stderr, "read error.\n");
fail=1;
break;
}
if (swab) {
swapBytesInScanline(buf1, w, dtype);
swapBytesInScanline(buf2, w, dtype);
}
tmp = (float) fabs(correlation(buf1, buf2,
w, dtype));
if (tmp > cor_coef) {
cor_coef = tmp;
*width = w, *length = h;
}
} while (0);
_TIFFfree(buf1);
_TIFFfree(buf2);
}
}
if (fail) {
return -1;
}
fprintf(stderr,
"Width is guessed as %lu, height is guessed as %lu.\n",
(unsigned long)*width, (unsigned long)*length);
return 1;
} else {
if (filestat.st_size<(_TIFF_off_t)(hdr_size+(*width)*(*length)*nbands*depth)) {
fprintf(stderr, "Input file too small.\n");
return -1;
}
}
return 1;
}
static toff_t
_tiffSeekProc(thandle_t fd, toff_t off, int whence)
{
return ((toff_t) _TIFF_lseek_f((int) fd, (_TIFF_off_t) off, whence));
}
