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tiffinfo: showdata for tiled images

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Thomas Bernard 2020-04-05 01:19:10 +02:00
parent 691427ea8d
commit aa9d52ac2b
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GPG Key ID: 0FF11B67A5C0863C
1 changed files with 44 additions and 0 deletions
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44
tools/tiffinfo.c
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@ -459,6 +459,50 @@ static void
TIFFReadRawDataTiled(TIFF* tif, int bitrev)
{
const char* what = "Tile";
uint32 ntiles = TIFFNumberOfTiles(tif);
uint64 *tilebc;
TIFFGetField(tif, TIFFTAG_TILEBYTECOUNTS, &tilebc);
if (tilebc != NULL && ntiles > 0) {
uint64 bufsize = 0;
tdata_t buf = NULL;
uint32 t;
for (t = 0; t < ntiles; t++) {
if (buf == NULL || tilebc[t] > bufsize) {
buf = _TIFFrealloc(buf, (tmsize_t)tilebc[t]);
bufsize = tilebc[t];
}
if (buf == NULL) {
fprintf(stderr,
"Cannot allocate buffer to read tile %lu\n",
(unsigned long) t);
break;
}
if (TIFFReadRawTile(tif, t, buf, (tmsize_t)tilebc[t]) < 0) {
fprintf(stderr, "Error reading tile %lu\n",
(unsigned long) t);
if (stoponerr)
break;
} else if (showdata) {
if (bitrev) {
TIFFReverseBits(buf, (tmsize_t)tilebc[t]);
printf("%s %lu: (bit reversed)\n ",
what, (unsigned long) t);
} else {
printf("%s %lu:\n ", what,
(unsigned long) t);
}
if (showwords) {
ShowRawWords((uint16*) buf, (uint32)(tilebc[t]>>1));
} else {
ShowRawBytes((unsigned char*) buf, (uint32) tilebc[t]);
}
}
}
if (buf != NULL)
_TIFFfree(buf);
}
}
void