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pdfium / pdfium / refs/heads/chromium/4685 / . / third_party / libtiff / tif_dirwrite.c
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/*
* 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.
*/
/*
* TIFF Library.
*
* Directory Write Support Routines.
*/
#include "tiffiop.h"
#include <float.h> /*--: for Rational2Double */
#include <math.h> /*--: for Rational2Double */
#ifdef HAVE_IEEEFP
#define TIFFCvtNativeToIEEEFloat(tif, n, fp)
#define TIFFCvtNativeToIEEEDouble(tif, n, dp)
#else
extern void TIFFCvtNativeToIEEEFloat(TIFF* tif, uint32 n, float* fp);
extern void TIFFCvtNativeToIEEEDouble(TIFF* tif, uint32 n, double* dp);
#endif
static int TIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff);
static int TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value);
#if 0
static int TIFFWriteDirectoryTagSampleformatPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value);
#endif
static int TIFFWriteDirectoryTagAscii(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, char* value);
static int TIFFWriteDirectoryTagUndefinedArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value);
#ifdef notdef
static int TIFFWriteDirectoryTagByte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint8 value);
#endif
static int TIFFWriteDirectoryTagByteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value);
#if 0
static int TIFFWriteDirectoryTagBytePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint8 value);
#endif
#ifdef notdef
static int TIFFWriteDirectoryTagSbyte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int8 value);
#endif
static int TIFFWriteDirectoryTagSbyteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int8* value);
#if 0
static int TIFFWriteDirectoryTagSbytePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int8 value);
#endif
static int TIFFWriteDirectoryTagShort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 value);
static int TIFFWriteDirectoryTagShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint16* value);
static int TIFFWriteDirectoryTagShortPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 value);
#ifdef notdef
static int TIFFWriteDirectoryTagSshort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int16 value);
#endif
static int TIFFWriteDirectoryTagSshortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int16* value);
#if 0
static int TIFFWriteDirectoryTagSshortPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int16 value);
#endif
static int TIFFWriteDirectoryTagLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value);
static int TIFFWriteDirectoryTagLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value);
#if 0
static int TIFFWriteDirectoryTagLongPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value);
#endif
#ifdef notdef
static int TIFFWriteDirectoryTagSlong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int32 value);
#endif
static int TIFFWriteDirectoryTagSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int32* value);
#if 0
static int TIFFWriteDirectoryTagSlongPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int32 value);
#endif
#ifdef notdef
static int TIFFWriteDirectoryTagLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint64 value);
#endif
static int TIFFWriteDirectoryTagLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
#ifdef notdef
static int TIFFWriteDirectoryTagSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int64 value);
#endif
static int TIFFWriteDirectoryTagSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int64* value);
static int TIFFWriteDirectoryTagRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value);
static int TIFFWriteDirectoryTagRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value);
static int TIFFWriteDirectoryTagSrationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value);
#ifdef notdef
static int TIFFWriteDirectoryTagFloat(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, float value);
#endif
static int TIFFWriteDirectoryTagFloatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value);
#if 0
static int TIFFWriteDirectoryTagFloatPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, float value);
#endif
#ifdef notdef
static int TIFFWriteDirectoryTagDouble(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value);
#endif
static int TIFFWriteDirectoryTagDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value);
#if 0
static int TIFFWriteDirectoryTagDoublePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value);
#endif
static int TIFFWriteDirectoryTagIfdArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value);
#ifdef notdef
static int TIFFWriteDirectoryTagIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
#endif
static int TIFFWriteDirectoryTagShortLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value);
static int TIFFWriteDirectoryTagLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
static int TIFFWriteDirectoryTagIfdIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
#ifdef notdef
static int TIFFWriteDirectoryTagShortLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
#endif
static int TIFFWriteDirectoryTagColormap(TIFF* tif, uint32* ndir, TIFFDirEntry* dir);
static int TIFFWriteDirectoryTagTransferfunction(TIFF* tif, uint32* ndir, TIFFDirEntry* dir);
static int TIFFWriteDirectoryTagSubifd(TIFF* tif, uint32* ndir, TIFFDirEntry* dir);
static int TIFFWriteDirectoryTagCheckedAscii(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, char* value);
static int TIFFWriteDirectoryTagCheckedUndefinedArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value);
#ifdef notdef
static int TIFFWriteDirectoryTagCheckedByte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint8 value);
#endif
static int TIFFWriteDirectoryTagCheckedByteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value);
#ifdef notdef
static int TIFFWriteDirectoryTagCheckedSbyte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int8 value);
#endif
static int TIFFWriteDirectoryTagCheckedSbyteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int8* value);
static int TIFFWriteDirectoryTagCheckedShort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 value);
static int TIFFWriteDirectoryTagCheckedShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint16* value);
#ifdef notdef
static int TIFFWriteDirectoryTagCheckedSshort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int16 value);
#endif
static int TIFFWriteDirectoryTagCheckedSshortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int16* value);
static int TIFFWriteDirectoryTagCheckedLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value);
static int TIFFWriteDirectoryTagCheckedLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value);
#ifdef notdef
static int TIFFWriteDirectoryTagCheckedSlong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int32 value);
#endif
static int TIFFWriteDirectoryTagCheckedSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int32* value);
#ifdef notdef
static int TIFFWriteDirectoryTagCheckedLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint64 value);
#endif
static int TIFFWriteDirectoryTagCheckedLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
#ifdef notdef
static int TIFFWriteDirectoryTagCheckedSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int64 value);
#endif
static int TIFFWriteDirectoryTagCheckedSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int64* value);
static int TIFFWriteDirectoryTagCheckedRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value);
static int TIFFWriteDirectoryTagCheckedRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value);
static int TIFFWriteDirectoryTagCheckedSrationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value);
/*--: Rational2Double: New functions to support true double-precision for custom rational tag types. */
static int TIFFWriteDirectoryTagRationalDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value);
static int TIFFWriteDirectoryTagSrationalDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value);
static int TIFFWriteDirectoryTagCheckedRationalDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value);
static int TIFFWriteDirectoryTagCheckedSrationalDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value);
static void DoubleToRational(double value, uint32 *num, uint32 *denom);
static void DoubleToSrational(double value, int32 *num, int32 *denom);
#if 0
static void DoubleToRational_direct(double value, unsigned long *num, unsigned long *denom);
static void DoubleToSrational_direct(double value, long *num, long *denom);
#endif
#ifdef notdef
static int TIFFWriteDirectoryTagCheckedFloat(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, float value);
#endif
static int TIFFWriteDirectoryTagCheckedFloatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value);
#ifdef notdef
static int TIFFWriteDirectoryTagCheckedDouble(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value);
#endif
static int TIFFWriteDirectoryTagCheckedDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value);
static int TIFFWriteDirectoryTagCheckedIfdArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value);
static int TIFFWriteDirectoryTagCheckedIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value);
static int TIFFWriteDirectoryTagData(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 datatype, uint32 count, uint32 datalength, void* data);
static int TIFFLinkDirectory(TIFF*);
/*
* Write the contents of the current directory
* to the specified file. This routine doesn't
* handle overwriting a directory with auxiliary
* storage that's been changed.
*/
int
TIFFWriteDirectory(TIFF* tif)
{
return TIFFWriteDirectorySec(tif,TRUE,TRUE,NULL);
}
/*
* This is an advanced writing function that must be used in a particular
* sequence, and generally together with TIFFForceStrileArrayWriting(),
* to make its intended effect. Its aim is to modify the location
* where the [Strip/Tile][Offsets/ByteCounts] arrays are located in the file.
* More precisely, when TIFFWriteCheck() will be called, the tag entries for
* those arrays will be written with type = count = offset = 0 as a temporary
* value.
*
* Its effect is only valid for the current directory, and before
* TIFFWriteDirectory() is first called, and will be reset when
* changing directory.
*
* The typical sequence of calls is:
* TIFFOpen()
* [ TIFFCreateDirectory(tif) ]
* Set fields with calls to TIFFSetField(tif, ...)
* TIFFDeferStrileArrayWriting(tif)
* TIFFWriteCheck(tif, ...)
* TIFFWriteDirectory(tif)
* ... potentially create other directories and come back to the above directory
* TIFFForceStrileArrayWriting(tif): emit the arrays at the end of file
*
* Returns 1 in case of success, 0 otherwise.
*/
int TIFFDeferStrileArrayWriting(TIFF* tif)
{
static const char module[] = "TIFFDeferStrileArrayWriting";
if (tif->tif_mode == O_RDONLY)
{
TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
"File opened in read-only mode");
return 0;
}
if( tif->tif_diroff != 0 )
{
TIFFErrorExt(tif->tif_clientdata, module,
"Directory has already been written");
return 0;
}
tif->tif_dir.td_deferstrilearraywriting = TRUE;
return 1;
}
/*
* Similar to TIFFWriteDirectory(), writes the directory out
* but leaves all data structures in memory so that it can be
* written again. This will make a partially written TIFF file
* readable before it is successfully completed/closed.
*/
int
TIFFCheckpointDirectory(TIFF* tif)
{
int rc;
/* Setup the strips arrays, if they haven't already been. */
if (tif->tif_dir.td_stripoffset_p == NULL)
(void) TIFFSetupStrips(tif);
rc = TIFFWriteDirectorySec(tif,TRUE,FALSE,NULL);
(void) TIFFSetWriteOffset(tif, TIFFSeekFile(tif, 0, SEEK_END));
return rc;
}
int
TIFFWriteCustomDirectory(TIFF* tif, uint64* pdiroff)
{
return TIFFWriteDirectorySec(tif,FALSE,FALSE,pdiroff);
}
/*
* Similar to TIFFWriteDirectory(), but if the directory has already
* been written once, it is relocated to the end of the file, in case it
* has changed in size. Note that this will result in the loss of the
* previously used directory space.
*/
int
TIFFRewriteDirectory( TIFF *tif )
{
static const char module[] = "TIFFRewriteDirectory";
/* We don't need to do anything special if it hasn't been written. */
if( tif->tif_diroff == 0 )
return TIFFWriteDirectory( tif );
/*
* Find and zero the pointer to this directory, so that TIFFLinkDirectory
* will cause it to be added after this directories current pre-link.
*/
if (!(tif->tif_flags&TIFF_BIGTIFF))
{
if (tif->tif_header.classic.tiff_diroff == tif->tif_diroff)
{
tif->tif_header.classic.tiff_diroff = 0;
tif->tif_diroff = 0;
TIFFSeekFile(tif,4,SEEK_SET);
if (!WriteOK(tif, &(tif->tif_header.classic.tiff_diroff),4))
{
TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
"Error updating TIFF header");
return (0);
}
}
else
{
uint32 nextdir;
nextdir = tif->tif_header.classic.tiff_diroff;
while(1) {
uint16 dircount;
uint32 nextnextdir;
if (!SeekOK(tif, nextdir) ||
!ReadOK(tif, &dircount, 2)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error fetching directory count");
return (0);
}
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabShort(&dircount);
(void) TIFFSeekFile(tif,
nextdir+2+dircount*12, SEEK_SET);
if (!ReadOK(tif, &nextnextdir, 4)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error fetching directory link");
return (0);
}
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabLong(&nextnextdir);
if (nextnextdir==tif->tif_diroff)
{
uint32 m;
m=0;
(void) TIFFSeekFile(tif,
nextdir+2+dircount*12, SEEK_SET);
if (!WriteOK(tif, &m, 4)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error writing directory link");
return (0);
}
tif->tif_diroff=0;
break;
}
nextdir=nextnextdir;
}
}
}
else
{
if (tif->tif_header.big.tiff_diroff == tif->tif_diroff)
{
tif->tif_header.big.tiff_diroff = 0;
tif->tif_diroff = 0;
TIFFSeekFile(tif,8,SEEK_SET);
if (!WriteOK(tif, &(tif->tif_header.big.tiff_diroff),8))
{
TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
"Error updating TIFF header");
return (0);
}
}
else
{
uint64 nextdir;
nextdir = tif->tif_header.big.tiff_diroff;
while(1) {
uint64 dircount64;
uint16 dircount;
uint64 nextnextdir;
if (!SeekOK(tif, nextdir) ||
!ReadOK(tif, &dircount64, 8)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error fetching directory count");
return (0);
}
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabLong8(&dircount64);
if (dircount64>0xFFFF)
{
TIFFErrorExt(tif->tif_clientdata, module,
"Sanity check on tag count failed, likely corrupt TIFF");
return (0);
}
dircount=(uint16)dircount64;
(void) TIFFSeekFile(tif,
nextdir+8+dircount*20, SEEK_SET);
if (!ReadOK(tif, &nextnextdir, 8)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error fetching directory link");
return (0);
}
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabLong8(&nextnextdir);
if (nextnextdir==tif->tif_diroff)
{
uint64 m;
m=0;
(void) TIFFSeekFile(tif,
nextdir+8+dircount*20, SEEK_SET);
if (!WriteOK(tif, &m, 8)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error writing directory link");
return (0);
}
tif->tif_diroff=0;
break;
}
nextdir=nextnextdir;
}
}
}
/*
* Now use TIFFWriteDirectory() normally.
*/
return TIFFWriteDirectory( tif );
}
static int
TIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff)
{
static const char module[] = "TIFFWriteDirectorySec";
uint32 ndir;
TIFFDirEntry* dir;
uint32 dirsize;
void* dirmem;
uint32 m;
if (tif->tif_mode == O_RDONLY)
return (1);
_TIFFFillStriles( tif );
/*
* Clear write state so that subsequent images with
* different characteristics get the right buffers
* setup for them.
*/
if (imagedone)
{
if (tif->tif_flags & TIFF_POSTENCODE)
{
tif->tif_flags &= ~TIFF_POSTENCODE;
if (!(*tif->tif_postencode)(tif))
{
TIFFErrorExt(tif->tif_clientdata,module,
"Error post-encoding before directory write");
return (0);
}
}
(*tif->tif_close)(tif); /* shutdown encoder */
/*
* Flush any data that might have been written
* by the compression close+cleanup routines. But
* be careful not to write stuff if we didn't add data
* in the previous steps as the "rawcc" data may well be
* a previously read tile/strip in mixed read/write mode.
*/
if (tif->tif_rawcc > 0
&& (tif->tif_flags & TIFF_BEENWRITING) != 0 )
{
if( !TIFFFlushData1(tif) )
{
TIFFErrorExt(tif->tif_clientdata, module,
"Error flushing data before directory write");
return (0);
}
}
if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata)
{
_TIFFfree(tif->tif_rawdata);
tif->tif_rawdata = NULL;
tif->tif_rawcc = 0;
tif->tif_rawdatasize = 0;
tif->tif_rawdataoff = 0;
tif->tif_rawdataloaded = 0;
}
tif->tif_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP);
}
dir=NULL;
dirmem=NULL;
dirsize=0;
while (1)
{
ndir=0;
if (isimage)
{
if (TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS))
{
if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_IMAGEWIDTH,tif->tif_dir.td_imagewidth))
goto bad;
if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_IMAGELENGTH,tif->tif_dir.td_imagelength))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_TILEDIMENSIONS))
{
if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_TILEWIDTH,tif->tif_dir.td_tilewidth))
goto bad;
if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_TILELENGTH,tif->tif_dir.td_tilelength))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_RESOLUTION))
{
if (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_XRESOLUTION,tif->tif_dir.td_xresolution))
goto bad;
if (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_YRESOLUTION,tif->tif_dir.td_yresolution))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_POSITION))
{
if (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_XPOSITION,tif->tif_dir.td_xposition))
goto bad;
if (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_YPOSITION,tif->tif_dir.td_yposition))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_SUBFILETYPE))
{
if (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_SUBFILETYPE,tif->tif_dir.td_subfiletype))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_BITSPERSAMPLE))
{
if (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_BITSPERSAMPLE,tif->tif_dir.td_bitspersample))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_COMPRESSION))
{
if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_COMPRESSION,tif->tif_dir.td_compression))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_PHOTOMETRIC))
{
if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_PHOTOMETRIC,tif->tif_dir.td_photometric))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_THRESHHOLDING))
{
if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_THRESHHOLDING,tif->tif_dir.td_threshholding))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_FILLORDER))
{
if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_FILLORDER,tif->tif_dir.td_fillorder))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_ORIENTATION))
{
if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_ORIENTATION,tif->tif_dir.td_orientation))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL))
{
if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_SAMPLESPERPIXEL,tif->tif_dir.td_samplesperpixel))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_ROWSPERSTRIP))
{
if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_ROWSPERSTRIP,tif->tif_dir.td_rowsperstrip))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_MINSAMPLEVALUE))
{
if (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_MINSAMPLEVALUE,tif->tif_dir.td_minsamplevalue))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_MAXSAMPLEVALUE))
{
if (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_MAXSAMPLEVALUE,tif->tif_dir.td_maxsamplevalue))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_PLANARCONFIG))
{
if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_PLANARCONFIG,tif->tif_dir.td_planarconfig))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_RESOLUTIONUNIT))
{
if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_RESOLUTIONUNIT,tif->tif_dir.td_resolutionunit))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_PAGENUMBER))
{
if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_PAGENUMBER,2,&tif->tif_dir.td_pagenumber[0]))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_STRIPBYTECOUNTS))
{
if (!isTiled(tif))
{
if (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_STRIPBYTECOUNTS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripbytecount_p))
goto bad;
}
else
{
if (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_TILEBYTECOUNTS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripbytecount_p))
goto bad;
}
}
if (TIFFFieldSet(tif,FIELD_STRIPOFFSETS))
{
if (!isTiled(tif))
{
/* td_stripoffset_p might be NULL in an odd OJPEG case. See
* tif_dirread.c around line 3634.
* XXX: OJPEG hack.
* If a) compression is OJPEG, b) it's not a tiled TIFF,
* and c) the number of strips is 1,
* then we tolerate the absence of stripoffsets tag,
* because, presumably, all required data is in the
* JpegInterchangeFormat stream.
* We can get here when using tiffset on such a file.
* See http://bugzilla.maptools.org/show_bug.cgi?id=2500
*/
if (tif->tif_dir.td_stripoffset_p != NULL &&
!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_STRIPOFFSETS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripoffset_p))
goto bad;
}
else
{
if (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_TILEOFFSETS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripoffset_p))
goto bad;
}
}
if (TIFFFieldSet(tif,FIELD_COLORMAP))
{
if (!TIFFWriteDirectoryTagColormap(tif,&ndir,dir))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_EXTRASAMPLES))
{
if (tif->tif_dir.td_extrasamples)
{
uint16 na;
uint16* nb;
TIFFGetFieldDefaulted(tif,TIFFTAG_EXTRASAMPLES,&na,&nb);
if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_EXTRASAMPLES,na,nb))
goto bad;
}
}
if (TIFFFieldSet(tif,FIELD_SAMPLEFORMAT))
{
if (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_SAMPLEFORMAT,tif->tif_dir.td_sampleformat))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_SMINSAMPLEVALUE))
{
if (!TIFFWriteDirectoryTagSampleformatArray(tif,&ndir,dir,TIFFTAG_SMINSAMPLEVALUE,tif->tif_dir.td_samplesperpixel,tif->tif_dir.td_sminsamplevalue))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_SMAXSAMPLEVALUE))
{
if (!TIFFWriteDirectoryTagSampleformatArray(tif,&ndir,dir,TIFFTAG_SMAXSAMPLEVALUE,tif->tif_dir.td_samplesperpixel,tif->tif_dir.td_smaxsamplevalue))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_IMAGEDEPTH))
{
if (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_IMAGEDEPTH,tif->tif_dir.td_imagedepth))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_TILEDEPTH))
{
if (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_TILEDEPTH,tif->tif_dir.td_tiledepth))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_HALFTONEHINTS))
{
if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_HALFTONEHINTS,2,&tif->tif_dir.td_halftonehints[0]))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_YCBCRSUBSAMPLING))
{
if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_YCBCRSUBSAMPLING,2,&tif->tif_dir.td_ycbcrsubsampling[0]))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_YCBCRPOSITIONING))
{
if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_YCBCRPOSITIONING,tif->tif_dir.td_ycbcrpositioning))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_REFBLACKWHITE))
{
if (!TIFFWriteDirectoryTagRationalArray(tif,&ndir,dir,TIFFTAG_REFERENCEBLACKWHITE,6,tif->tif_dir.td_refblackwhite))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_TRANSFERFUNCTION))
{
if (!TIFFWriteDirectoryTagTransferfunction(tif,&ndir,dir))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_INKNAMES))
{
if (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,TIFFTAG_INKNAMES,tif->tif_dir.td_inknameslen,tif->tif_dir.td_inknames))
goto bad;
}
if (TIFFFieldSet(tif,FIELD_SUBIFD))
{
if (!TIFFWriteDirectoryTagSubifd(tif,&ndir,dir))
goto bad;
}
{
uint32 n;
for (n=0; n<tif->tif_nfields; n++) {
const TIFFField* o;
o = tif->tif_fields[n];
if ((o->field_bit>=FIELD_CODEC)&&(TIFFFieldSet(tif,o->field_bit)))
{
switch (o->get_field_type)
{
case TIFF_SETGET_ASCII:
{
uint32 pa;
char* pb;
assert(o->field_type==TIFF_ASCII);
assert(o->field_readcount==TIFF_VARIABLE);
assert(o->field_passcount==0);
TIFFGetField(tif,o->field_tag,&pb);
pa=(uint32)(strlen(pb));
if (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,(uint16)o->field_tag,pa,pb))
goto bad;
}
break;
case TIFF_SETGET_UINT16:
{
uint16 p;
assert(o->field_type==TIFF_SHORT);
assert(o->field_readcount==1);
assert(o->field_passcount==0);
TIFFGetField(tif,o->field_tag,&p);
if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,(uint16)o->field_tag,p))
goto bad;
}
break;
case TIFF_SETGET_UINT32:
{
uint32 p;
assert(o->field_type==TIFF_LONG);
assert(o->field_readcount==1);
assert(o->field_passcount==0);
TIFFGetField(tif,o->field_tag,&p);
if (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,(uint16)o->field_tag,p))
goto bad;
}
break;
case TIFF_SETGET_C32_UINT8:
{
uint32 pa;
void* pb;
assert(o->field_type==TIFF_UNDEFINED);
assert(o->field_readcount==TIFF_VARIABLE2);
assert(o->field_passcount==1);
TIFFGetField(tif,o->field_tag,&pa,&pb);
if (!TIFFWriteDirectoryTagUndefinedArray(tif,&ndir,dir,(uint16)o->field_tag,pa,pb))
goto bad;
}
break;
default:
TIFFErrorExt(tif->tif_clientdata,module,
"Cannot write tag %d (%s)",
TIFFFieldTag(o),
o->field_name ? o->field_name : "unknown");
goto bad;
}
}
}
}
}
for (m=0; m<(uint32)(tif->tif_dir.td_customValueCount); m++)
{
uint16 tag = (uint16)tif->tif_dir.td_customValues[m].info->field_tag;
uint32 count = tif->tif_dir.td_customValues[m].count;
switch (tif->tif_dir.td_customValues[m].info->field_type)
{
case TIFF_ASCII:
if (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_UNDEFINED:
if (!TIFFWriteDirectoryTagUndefinedArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_BYTE:
if (!TIFFWriteDirectoryTagByteArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_SBYTE:
if (!TIFFWriteDirectoryTagSbyteArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_SHORT:
if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_SSHORT:
if (!TIFFWriteDirectoryTagSshortArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_LONG:
if (!TIFFWriteDirectoryTagLongArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_SLONG:
if (!TIFFWriteDirectoryTagSlongArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_LONG8:
if (!TIFFWriteDirectoryTagLong8Array(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_SLONG8:
if (!TIFFWriteDirectoryTagSlong8Array(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_RATIONAL:
{
/*-- Rational2Double: For Rationals evaluate "set_field_type" to determine internal storage size. */
int tv_size;
tv_size = _TIFFSetGetFieldSize(tif->tif_dir.td_customValues[m].info->set_field_type);
if (tv_size == 8) {
if (!TIFFWriteDirectoryTagRationalDoubleArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
} else {
/*-- default should be tv_size == 4 */
if (!TIFFWriteDirectoryTagRationalArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
/*-- ToDo: After Testing, this should be removed and tv_size==4 should be set as default. */
if (tv_size != 4) {
TIFFErrorExt(0,"TIFFLib: _TIFFWriteDirectorySec()", "Rational2Double: .set_field_type in not 4 but %d", tv_size);
}
}
}
break;
case TIFF_SRATIONAL:
{
/*-- Rational2Double: For Rationals evaluate "set_field_type" to determine internal storage size. */
int tv_size;
tv_size = _TIFFSetGetFieldSize(tif->tif_dir.td_customValues[m].info->set_field_type);
if (tv_size == 8) {
if (!TIFFWriteDirectoryTagSrationalDoubleArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
} else {
/*-- default should be tv_size == 4 */
if (!TIFFWriteDirectoryTagSrationalArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
/*-- ToDo: After Testing, this should be removed and tv_size==4 should be set as default. */
if (tv_size != 4) {
TIFFErrorExt(0,"TIFFLib: _TIFFWriteDirectorySec()", "Rational2Double: .set_field_type in not 4 but %d", tv_size);
}
}
}
break;
case TIFF_FLOAT:
if (!TIFFWriteDirectoryTagFloatArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_DOUBLE:
if (!TIFFWriteDirectoryTagDoubleArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_IFD:
if (!TIFFWriteDirectoryTagIfdArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
case TIFF_IFD8:
if (!TIFFWriteDirectoryTagIfdIfd8Array(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))
goto bad;
break;
default:
assert(0); /* we should never get here */
break;
}
}
if (dir!=NULL)
break;
dir=_TIFFmalloc(ndir*sizeof(TIFFDirEntry));
if (dir==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
goto bad;
}
if (isimage)
{
if ((tif->tif_diroff==0)&&(!TIFFLinkDirectory(tif)))
goto bad;
}
else
tif->tif_diroff=(TIFFSeekFile(tif,0,SEEK_END)+1)&(~((toff_t)1));
if (pdiroff!=NULL)
*pdiroff=tif->tif_diroff;
if (!(tif->tif_flags&TIFF_BIGTIFF))
dirsize=2+ndir*12+4;
else
dirsize=8+ndir*20+8;
tif->tif_dataoff=tif->tif_diroff+dirsize;
if (!(tif->tif_flags&TIFF_BIGTIFF))
tif->tif_dataoff=(uint32)tif->tif_dataoff;
if ((tif->tif_dataoff<tif->tif_diroff)||(tif->tif_dataoff<(uint64)dirsize))
{
TIFFErrorExt(tif->tif_clientdata,module,"Maximum TIFF file size exceeded");
goto bad;
}
if (tif->tif_dataoff&1)
tif->tif_dataoff++;
if (isimage)
tif->tif_curdir++;
}
if (isimage)
{
if (TIFFFieldSet(tif,FIELD_SUBIFD)&&(tif->tif_subifdoff==0))
{
uint32 na;
TIFFDirEntry* nb;
for (na=0, nb=dir; ; na++, nb++)
{
if( na == ndir )
{
TIFFErrorExt(tif->tif_clientdata,module,
"Cannot find SubIFD tag");
goto bad;
}
if (nb->tdir_tag==TIFFTAG_SUBIFD)
break;
}
if (!(tif->tif_flags&TIFF_BIGTIFF))
tif->tif_subifdoff=tif->tif_diroff+2+na*12+8;
else
tif->tif_subifdoff=tif->tif_diroff+8+na*20+12;
}
}
dirmem=_TIFFmalloc(dirsize);
if (dirmem==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
goto bad;
}
if (!(tif->tif_flags&TIFF_BIGTIFF))
{
uint8* n;
uint32 nTmp;
TIFFDirEntry* o;
n=dirmem;
*(uint16*)n=(uint16)ndir;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabShort((uint16*)n);
n+=2;
o=dir;
for (m=0; m<ndir; m++)
{
*(uint16*)n=o->tdir_tag;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabShort((uint16*)n);
n+=2;
*(uint16*)n=o->tdir_type;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabShort((uint16*)n);
n+=2;
nTmp = (uint32)o->tdir_count;
_TIFFmemcpy(n,&nTmp,4);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong((uint32*)n);
n+=4;
/* This is correct. The data has been */
/* swabbed previously in TIFFWriteDirectoryTagData */
_TIFFmemcpy(n,&o->tdir_offset,4);
n+=4;
o++;
}
nTmp = (uint32)tif->tif_nextdiroff;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong(&nTmp);
_TIFFmemcpy(n,&nTmp,4);
}
else
{
uint8* n;
TIFFDirEntry* o;
n=dirmem;
*(uint64*)n=ndir;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong8((uint64*)n);
n+=8;
o=dir;
for (m=0; m<ndir; m++)
{
*(uint16*)n=o->tdir_tag;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabShort((uint16*)n);
n+=2;
*(uint16*)n=o->tdir_type;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabShort((uint16*)n);
n+=2;
_TIFFmemcpy(n,&o->tdir_count,8);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong8((uint64*)n);
n+=8;
_TIFFmemcpy(n,&o->tdir_offset,8);
n+=8;
o++;
}
_TIFFmemcpy(n,&tif->tif_nextdiroff,8);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong8((uint64*)n);
}
_TIFFfree(dir);
dir=NULL;
if (!SeekOK(tif,tif->tif_diroff))
{
TIFFErrorExt(tif->tif_clientdata,module,"IO error writing directory");
goto bad;
}
if (!WriteOK(tif,dirmem,(tmsize_t)dirsize))
{
TIFFErrorExt(tif->tif_clientdata,module,"IO error writing directory");
goto bad;
}
_TIFFfree(dirmem);
if (imagedone)
{
TIFFFreeDirectory(tif);
tif->tif_flags &= ~TIFF_DIRTYDIRECT;
tif->tif_flags &= ~TIFF_DIRTYSTRIP;
(*tif->tif_cleanup)(tif);
/*
* Reset directory-related state for subsequent
* directories.
*/
TIFFCreateDirectory(tif);
}
return(1);
bad:
if (dir!=NULL)
_TIFFfree(dir);
if (dirmem!=NULL)
_TIFFfree(dirmem);
return(0);
}
static int8 TIFFClampDoubleToInt8( double val )
{
if( val > 127 )
return 127;
if( val < -128 || val != val )
return -128;
return (int8)val;
}
static int16 TIFFClampDoubleToInt16( double val )
{
if( val > 32767 )
return 32767;
if( val < -32768 || val != val )
return -32768;
return (int16)val;
}
static int32 TIFFClampDoubleToInt32( double val )
{
if( val > 0x7FFFFFFF )
return 0x7FFFFFFF;
if( val < -0x7FFFFFFF-1 || val != val )
return -0x7FFFFFFF-1;
return (int32)val;
}
static uint8 TIFFClampDoubleToUInt8( double val )
{
if( val < 0 )
return 0;
if( val > 255 || val != val )
return 255;
return (uint8)val;
}
static uint16 TIFFClampDoubleToUInt16( double val )
{
if( val < 0 )
return 0;
if( val > 65535 || val != val )
return 65535;
return (uint16)val;
}
static uint32 TIFFClampDoubleToUInt32( double val )
{
if( val < 0 )
return 0;
if( val > 0xFFFFFFFFU || val != val )
return 0xFFFFFFFFU;
return (uint32)val;
}
static int
TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)
{
static const char module[] = "TIFFWriteDirectoryTagSampleformatArray";
void* conv;
uint32 i;
int ok;
conv = _TIFFmalloc(count*sizeof(double));
if (conv == NULL)
{
TIFFErrorExt(tif->tif_clientdata, module, "Out of memory");
return (0);
}
switch (tif->tif_dir.td_sampleformat)
{
case SAMPLEFORMAT_IEEEFP:
if (tif->tif_dir.td_bitspersample<=32)
{
for (i = 0; i < count; ++i)
((float*)conv)[i] = _TIFFClampDoubleToFloat(value[i]);
ok = TIFFWriteDirectoryTagFloatArray(tif,ndir,dir,tag,count,(float*)conv);
}
else
{
ok = TIFFWriteDirectoryTagDoubleArray(tif,ndir,dir,tag,count,value);
}
break;
case SAMPLEFORMAT_INT:
if (tif->tif_dir.td_bitspersample<=8)
{
for (i = 0; i < count; ++i)
((int8*)conv)[i] = TIFFClampDoubleToInt8(value[i]);
ok = TIFFWriteDirectoryTagSbyteArray(tif,ndir,dir,tag,count,(int8*)conv);
}
else if (tif->tif_dir.td_bitspersample<=16)
{
for (i = 0; i < count; ++i)
((int16*)conv)[i] = TIFFClampDoubleToInt16(value[i]);
ok = TIFFWriteDirectoryTagSshortArray(tif,ndir,dir,tag,count,(int16*)conv);
}
else
{
for (i = 0; i < count; ++i)
((int32*)conv)[i] = TIFFClampDoubleToInt32(value[i]);
ok = TIFFWriteDirectoryTagSlongArray(tif,ndir,dir,tag,count,(int32*)conv);
}
break;
case SAMPLEFORMAT_UINT:
if (tif->tif_dir.td_bitspersample<=8)
{
for (i = 0; i < count; ++i)
((uint8*)conv)[i] = TIFFClampDoubleToUInt8(value[i]);
ok = TIFFWriteDirectoryTagByteArray(tif,ndir,dir,tag,count,(uint8*)conv);
}
else if (tif->tif_dir.td_bitspersample<=16)
{
for (i = 0; i < count; ++i)
((uint16*)conv)[i] = TIFFClampDoubleToUInt16(value[i]);
ok = TIFFWriteDirectoryTagShortArray(tif,ndir,dir,tag,count,(uint16*)conv);
}
else
{
for (i = 0; i < count; ++i)
((uint32*)conv)[i] = TIFFClampDoubleToUInt32(value[i]);
ok = TIFFWriteDirectoryTagLongArray(tif,ndir,dir,tag,count,(uint32*)conv);
}
break;
default:
ok = 0;
}
_TIFFfree(conv);
return (ok);
}
#if 0
static int
TIFFWriteDirectoryTagSampleformatPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
{
switch (tif->tif_dir.td_sampleformat)
{
case SAMPLEFORMAT_IEEEFP:
if (tif->tif_dir.td_bitspersample<=32)
return(TIFFWriteDirectoryTagFloatPerSample(tif,ndir,dir,tag,(float)value));
else
return(TIFFWriteDirectoryTagDoublePerSample(tif,ndir,dir,tag,value));
case SAMPLEFORMAT_INT:
if (tif->tif_dir.td_bitspersample<=8)
return(TIFFWriteDirectoryTagSbytePerSample(tif,ndir,dir,tag,(int8)value));
else if (tif->tif_dir.td_bitspersample<=16)
return(TIFFWriteDirectoryTagSshortPerSample(tif,ndir,dir,tag,(int16)value));
else
return(TIFFWriteDirectoryTagSlongPerSample(tif,ndir,dir,tag,(int32)value));
case SAMPLEFORMAT_UINT:
if (tif->tif_dir.td_bitspersample<=8)
return(TIFFWriteDirectoryTagBytePerSample(tif,ndir,dir,tag,(uint8)value));
else if (tif->tif_dir.td_bitspersample<=16)
return(TIFFWriteDirectoryTagShortPerSample(tif,ndir,dir,tag,(uint16)value));
else
return(TIFFWriteDirectoryTagLongPerSample(tif,ndir,dir,tag,(uint32)value));
default:
return(1);
}
}
#endif
static int
TIFFWriteDirectoryTagAscii(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, char* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedAscii(tif,ndir,dir,tag,count,value));
}
static int
TIFFWriteDirectoryTagUndefinedArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedUndefinedArray(tif,ndir,dir,tag,count,value));
}
#ifdef notdef
static int
TIFFWriteDirectoryTagByte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint8 value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedByte(tif,ndir,dir,tag,value));
}
#endif
static int
TIFFWriteDirectoryTagByteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedByteArray(tif,ndir,dir,tag,count,value));
}
#if 0
static int
TIFFWriteDirectoryTagBytePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint8 value)
{
static const char module[] = "TIFFWriteDirectoryTagBytePerSample";
uint8* m;
uint8* na;
uint16 nb;
int o;
if (dir==NULL)
{
(*ndir)++;
return(1);
}
m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(uint8));
if (m==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
*na=value;
o=TIFFWriteDirectoryTagCheckedByteArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
_TIFFfree(m);
return(o);
}
#endif
#ifdef notdef
static int
TIFFWriteDirectoryTagSbyte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int8 value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedSbyte(tif,ndir,dir,tag,value));
}
#endif
static int
TIFFWriteDirectoryTagSbyteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int8* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedSbyteArray(tif,ndir,dir,tag,count,value));
}
#if 0
static int
TIFFWriteDirectoryTagSbytePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int8 value)
{
static const char module[] = "TIFFWriteDirectoryTagSbytePerSample";
int8* m;
int8* na;
uint16 nb;
int o;
if (dir==NULL)
{
(*ndir)++;
return(1);
}
m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(int8));
if (m==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
*na=value;
o=TIFFWriteDirectoryTagCheckedSbyteArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
_TIFFfree(m);
return(o);
}
#endif
static int
TIFFWriteDirectoryTagShort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedShort(tif,ndir,dir,tag,value));
}
static int
TIFFWriteDirectoryTagShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint16* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,tag,count,value));
}
static int
TIFFWriteDirectoryTagShortPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 value)
{
static const char module[] = "TIFFWriteDirectoryTagShortPerSample";
uint16* m;
uint16* na;
uint16 nb;
int o;
if (dir==NULL)
{
(*ndir)++;
return(1);
}
m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(uint16));
if (m==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
*na=value;
o=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
_TIFFfree(m);
return(o);
}
#ifdef notdef
static int
TIFFWriteDirectoryTagSshort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int16 value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedSshort(tif,ndir,dir,tag,value));
}
#endif
static int
TIFFWriteDirectoryTagSshortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int16* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedSshortArray(tif,ndir,dir,tag,count,value));
}
#if 0
static int
TIFFWriteDirectoryTagSshortPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int16 value)
{
static const char module[] = "TIFFWriteDirectoryTagSshortPerSample";
int16* m;
int16* na;
uint16 nb;
int o;
if (dir==NULL)
{
(*ndir)++;
return(1);
}
m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(int16));
if (m==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
*na=value;
o=TIFFWriteDirectoryTagCheckedSshortArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
_TIFFfree(m);
return(o);
}
#endif
static int
TIFFWriteDirectoryTagLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedLong(tif,ndir,dir,tag,value));
}
static int
TIFFWriteDirectoryTagLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedLongArray(tif,ndir,dir,tag,count,value));
}
#if 0
static int
TIFFWriteDirectoryTagLongPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value)
{
static const char module[] = "TIFFWriteDirectoryTagLongPerSample";
uint32* m;
uint32* na;
uint16 nb;
int o;
if (dir==NULL)
{
(*ndir)++;
return(1);
}
m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(uint32));
if (m==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
*na=value;
o=TIFFWriteDirectoryTagCheckedLongArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
_TIFFfree(m);
return(o);
}
#endif
#ifdef notdef
static int
TIFFWriteDirectoryTagSlong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int32 value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedSlong(tif,ndir,dir,tag,value));
}
#endif
static int
TIFFWriteDirectoryTagSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int32* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedSlongArray(tif,ndir,dir,tag,count,value));
}
#if 0
static int
TIFFWriteDirectoryTagSlongPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int32 value)
{
static const char module[] = "TIFFWriteDirectoryTagSlongPerSample";
int32* m;
int32* na;
uint16 nb;
int o;
if (dir==NULL)
{
(*ndir)++;
return(1);
}
m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(int32));
if (m==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
*na=value;
o=TIFFWriteDirectoryTagCheckedSlongArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
_TIFFfree(m);
return(o);
}
#endif
#ifdef notdef
static int
TIFFWriteDirectoryTagLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint64 value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedLong8(tif,ndir,dir,tag,value));
}
#endif
static int
TIFFWriteDirectoryTagLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedLong8Array(tif,ndir,dir,tag,count,value));
}
#ifdef notdef
static int
TIFFWriteDirectoryTagSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int64 value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedSlong8(tif,ndir,dir,tag,value));
}
#endif
static int
TIFFWriteDirectoryTagSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int64* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedSlong8Array(tif,ndir,dir,tag,count,value));
}
static int
TIFFWriteDirectoryTagRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedRational(tif,ndir,dir,tag,value));
}
static int
TIFFWriteDirectoryTagRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedRationalArray(tif,ndir,dir,tag,count,value));
}
static int
TIFFWriteDirectoryTagSrationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedSrationalArray(tif,ndir,dir,tag,count,value));
}
/*-- Rational2Double: additional write functions */
static int
TIFFWriteDirectoryTagRationalDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedRationalDoubleArray(tif,ndir,dir,tag,count,value));
}
static int
TIFFWriteDirectoryTagSrationalDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedSrationalDoubleArray(tif,ndir,dir,tag,count,value));
}
#ifdef notdef
static int TIFFWriteDirectoryTagFloat(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, float value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedFloat(tif,ndir,dir,tag,value));
}
#endif
static int TIFFWriteDirectoryTagFloatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedFloatArray(tif,ndir,dir,tag,count,value));
}
#if 0
static int TIFFWriteDirectoryTagFloatPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, float value)
{
static const char module[] = "TIFFWriteDirectoryTagFloatPerSample";
float* m;
float* na;
uint16 nb;
int o;
if (dir==NULL)
{
(*ndir)++;
return(1);
}
m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(float));
if (m==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
*na=value;
o=TIFFWriteDirectoryTagCheckedFloatArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
_TIFFfree(m);
return(o);
}
#endif
#ifdef notdef
static int TIFFWriteDirectoryTagDouble(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedDouble(tif,ndir,dir,tag,value));
}
#endif
static int TIFFWriteDirectoryTagDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedDoubleArray(tif,ndir,dir,tag,count,value));
}
#if 0
static int TIFFWriteDirectoryTagDoublePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
{
static const char module[] = "TIFFWriteDirectoryTagDoublePerSample";
double* m;
double* na;
uint16 nb;
int o;
if (dir==NULL)
{
(*ndir)++;
return(1);
}
m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(double));
if (m==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (na=m, nb=0; nb<tif->tif_dir.td_samplesperpixel; na++, nb++)
*na=value;
o=TIFFWriteDirectoryTagCheckedDoubleArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m);
_TIFFfree(m);
return(o);
}
#endif
static int
TIFFWriteDirectoryTagIfdArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedIfdArray(tif,ndir,dir,tag,count,value));
}
#ifdef notdef
static int
TIFFWriteDirectoryTagIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
return(TIFFWriteDirectoryTagCheckedIfd8Array(tif,ndir,dir,tag,count,value));
}
#endif
static int
TIFFWriteDirectoryTagShortLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value)
{
if (dir==NULL)
{
(*ndir)++;
return(1);
}
if (value<=0xFFFF)
return(TIFFWriteDirectoryTagCheckedShort(tif,ndir,dir,tag,(uint16)value));
else
return(TIFFWriteDirectoryTagCheckedLong(tif,ndir,dir,tag,value));
}
static int _WriteAsType(TIFF* tif, uint64 strile_size, uint64 uncompressed_threshold)
{
const uint16 compression = tif->tif_dir.td_compression;
if ( compression == COMPRESSION_NONE )
{
return strile_size > uncompressed_threshold;
}
else if ( compression == COMPRESSION_JPEG ||
compression == COMPRESSION_LZW ||
compression == COMPRESSION_ADOBE_DEFLATE ||
compression == COMPRESSION_LZMA ||
compression == COMPRESSION_LERC ||
compression == COMPRESSION_ZSTD ||
compression == COMPRESSION_WEBP )
{
/* For a few select compression types, we assume that in the worst */
/* case the compressed size will be 10 times the uncompressed size */
/* This is overly pessismistic ! */
return strile_size >= uncompressed_threshold / 10;
}
return 1;
}
static int WriteAsLong8(TIFF* tif, uint64 strile_size)
{
return _WriteAsType(tif, strile_size, 0xFFFFFFFFU);
}
static int WriteAsLong4(TIFF* tif, uint64 strile_size)
{
return _WriteAsType(tif, strile_size, 0xFFFFU);
}
/************************************************************************/
/* TIFFWriteDirectoryTagLongLong8Array() */
/* */
/* Write out LONG8 array and write a SHORT/LONG/LONG8 depending */
/* on strile size and Classic/BigTIFF mode. */
/************************************************************************/
static int
TIFFWriteDirectoryTagLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
{
static const char module[] = "TIFFWriteDirectoryTagLongLong8Array";
int o;
int write_aslong4;
/* is this just a counting pass? */
if (dir==NULL)
{
(*ndir)++;
return(1);
}
if( tif->tif_dir.td_deferstrilearraywriting )
{
return TIFFWriteDirectoryTagData(tif, ndir, dir, tag, TIFF_NOTYPE, 0, 0, NULL);
}
if( tif->tif_flags&TIFF_BIGTIFF )
{
int write_aslong8 = 1;
/* In the case of ByteCounts array, we may be able to write them on */
/* LONG if the strip/tilesize is not too big. */
/* Also do that for count > 1 in the case someone would want to create */
/* a single-strip file with a growing height, in which case using */
/* LONG8 will be safer. */
if( count > 1 && tag == TIFFTAG_STRIPBYTECOUNTS )
{
write_aslong8 = WriteAsLong8(tif, TIFFStripSize64(tif));
}
else if( count > 1 && tag == TIFFTAG_TILEBYTECOUNTS )
{
write_aslong8 = WriteAsLong8(tif, TIFFTileSize64(tif));
}
if( write_aslong8 )
{
return TIFFWriteDirectoryTagCheckedLong8Array(tif,ndir,dir,
tag,count,value);
}
}
write_aslong4 = 1;
if( count > 1 && tag == TIFFTAG_STRIPBYTECOUNTS )
{
write_aslong4 = WriteAsLong4(tif, TIFFStripSize64(tif));
}
else if( count > 1 && tag == TIFFTAG_TILEBYTECOUNTS )
{
write_aslong4 = WriteAsLong4(tif, TIFFTileSize64(tif));
}
if( write_aslong4 )
{
/*
** For classic tiff we want to verify everything is in range for LONG
** and convert to long format.
*/
uint32* p = _TIFFmalloc(count*sizeof(uint32));
uint32* q;
uint64* ma;
uint32 mb;
if (p==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (q=p, ma=value, mb=0; mb<count; ma++, mb++, q++)
{
if (*ma>0xFFFFFFFF)
{
TIFFErrorExt(tif->tif_clientdata,module,
"Attempt to write value larger than 0xFFFFFFFF in LONG array.");
_TIFFfree(p);
return(0);
}
*q= (uint32)(*ma);
}
o=TIFFWriteDirectoryTagCheckedLongArray(tif,ndir,dir,tag,count,p);
_TIFFfree(p);
}
else
{
uint16* p = _TIFFmalloc(count*sizeof(uint16));
uint16* q;
uint64* ma;
uint32 mb;
if (p==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (q=p, ma=value, mb=0; mb<count; ma++, mb++, q++)
{
if (*ma>0xFFFF)
{
/* Should not happen normally given the check we did before */
TIFFErrorExt(tif->tif_clientdata,module,
"Attempt to write value larger than 0xFFFF in SHORT array.");
_TIFFfree(p);
return(0);
}
*q= (uint16)(*ma);
}
o=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,tag,count,p);
_TIFFfree(p);
}
return(o);
}
/************************************************************************/
/* TIFFWriteDirectoryTagIfdIfd8Array() */
/* */
/* Write either IFD8 or IFD array depending on file type. */
/************************************************************************/
static int
TIFFWriteDirectoryTagIfdIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
{
static const char module[] = "TIFFWriteDirectoryTagIfdIfd8Array";
uint64* ma;
uint32 mb;
uint32* p;
uint32* q;
int o;
/* is this just a counting pass? */
if (dir==NULL)
{
(*ndir)++;
return(1);
}
/* We always write IFD8 for BigTIFF, no checking needed. */
if( tif->tif_flags&TIFF_BIGTIFF )
return TIFFWriteDirectoryTagCheckedIfd8Array(tif,ndir,dir,
tag,count,value);
/*
** For classic tiff we want to verify everything is in range for IFD
** and convert to long format.
*/
p = _TIFFmalloc(count*sizeof(uint32));
if (p==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (q=p, ma=value, mb=0; mb<count; ma++, mb++, q++)
{
if (*ma>0xFFFFFFFF)
{
TIFFErrorExt(tif->tif_clientdata,module,
"Attempt to write value larger than 0xFFFFFFFF in Classic TIFF file.");
_TIFFfree(p);
return(0);
}
*q= (uint32)(*ma);
}
o=TIFFWriteDirectoryTagCheckedIfdArray(tif,ndir,dir,tag,count,p);
_TIFFfree(p);
return(o);
}
#ifdef notdef
static int
TIFFWriteDirectoryTagShortLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
{
static const char module[] = "TIFFWriteDirectoryTagShortLongLong8Array";
uint64* ma;
uint32 mb;
uint8 n;
int o;
if (dir==NULL)
{
(*ndir)++;
return(1);
}
n=0;
for (ma=value, mb=0; mb<count; ma++, mb++)
{
if ((n==0)&&(*ma>0xFFFF))
n=1;
if ((n==1)&&(*ma>0xFFFFFFFF))
{
n=2;
break;
}
}
if (n==0)
{
uint16* p;
uint16* q;
p=_TIFFmalloc(count*sizeof(uint16));
if (p==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (ma=value, mb=0, q=p; mb<count; ma++, mb++, q++)
*q=(uint16)(*ma);
o=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,tag,count,p);
_TIFFfree(p);
}
else if (n==1)
{
uint32* p;
uint32* q;
p=_TIFFmalloc(count*sizeof(uint32));
if (p==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (ma=value, mb=0, q=p; mb<count; ma++, mb++, q++)
*q=(uint32)(*ma);
o=TIFFWriteDirectoryTagCheckedLongArray(tif,ndir,dir,tag,count,p);
_TIFFfree(p);
}
else
{
assert(n==2);
o=TIFFWriteDirectoryTagCheckedLong8Array(tif,ndir,dir,tag,count,value);
}
return(o);
}
#endif
static int
TIFFWriteDirectoryTagColormap(TIFF* tif, uint32* ndir, TIFFDirEntry* dir)
{
static const char module[] = "TIFFWriteDirectoryTagColormap";
uint32 m;
uint16* n;
int o;
if (dir==NULL)
{
(*ndir)++;
return(1);
}
m=(1<<tif->tif_dir.td_bitspersample);
n=_TIFFmalloc(3*m*sizeof(uint16));
if (n==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
_TIFFmemcpy(&n[0],tif->tif_dir.td_colormap[0],m*sizeof(uint16));
_TIFFmemcpy(&n[m],tif->tif_dir.td_colormap[1],m*sizeof(uint16));
_TIFFmemcpy(&n[2*m],tif->tif_dir.td_colormap[2],m*sizeof(uint16));
o=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,TIFFTAG_COLORMAP,3*m,n);
_TIFFfree(n);
return(o);
}
static int
TIFFWriteDirectoryTagTransferfunction(TIFF* tif, uint32* ndir, TIFFDirEntry* dir)
{
static const char module[] = "TIFFWriteDirectoryTagTransferfunction";
uint32 m;
uint16 n;
uint16* o;
int p;
if (dir==NULL)
{
(*ndir)++;
return(1);
}
m=(1<<tif->tif_dir.td_bitspersample);
n=tif->tif_dir.td_samplesperpixel-tif->tif_dir.td_extrasamples;
/*
* Check if the table can be written as a single column,
* or if it must be written as 3 columns. Note that we
* write a 3-column tag if there are 2 samples/pixel and
* a single column of data won't suffice--hmm.
*/
if (n>3)
n=3;
if (n==3)
{
if (tif->tif_dir.td_transferfunction[2] == NULL ||
!_TIFFmemcmp(tif->tif_dir.td_transferfunction[0],tif->tif_dir.td_transferfunction[2],m*sizeof(uint16)))
n=2;
}
if (n==2)
{
if (tif->tif_dir.td_transferfunction[1] == NULL ||
!_TIFFmemcmp(tif->tif_dir.td_transferfunction[0],tif->tif_dir.td_transferfunction[1],m*sizeof(uint16)))
n=1;
}
if (n==0)
n=1;
o=_TIFFmalloc(n*m*sizeof(uint16));
if (o==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
_TIFFmemcpy(&o[0],tif->tif_dir.td_transferfunction[0],m*sizeof(uint16));
if (n>1)
_TIFFmemcpy(&o[m],tif->tif_dir.td_transferfunction[1],m*sizeof(uint16));
if (n>2)
_TIFFmemcpy(&o[2*m],tif->tif_dir.td_transferfunction[2],m*sizeof(uint16));
p=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,TIFFTAG_TRANSFERFUNCTION,n*m,o);
_TIFFfree(o);
return(p);
}
static int
TIFFWriteDirectoryTagSubifd(TIFF* tif, uint32* ndir, TIFFDirEntry* dir)
{
static const char module[] = "TIFFWriteDirectoryTagSubifd";
uint64 m;
int n;
if (tif->tif_dir.td_nsubifd==0)
return(1);
if (dir==NULL)
{
(*ndir)++;
return(1);
}
m=tif->tif_dataoff;
if (!(tif->tif_flags&TIFF_BIGTIFF))
{
uint32* o;
uint64* pa;
uint32* pb;
uint16 p;
o=_TIFFmalloc(tif->tif_dir.td_nsubifd*sizeof(uint32));
if (o==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
pa=tif->tif_dir.td_subifd;
pb=o;
for (p=0; p < tif->tif_dir.td_nsubifd; p++)
{
assert(pa != 0);
/* Could happen if an classicTIFF has a SubIFD of type LONG8 (which is illegal) */
if( *pa > 0xFFFFFFFFUL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Illegal value for SubIFD tag");
_TIFFfree(o);
return(0);
}
*pb++=(uint32)(*pa++);
}
n=TIFFWriteDirectoryTagCheckedIfdArray(tif,ndir,dir,TIFFTAG_SUBIFD,tif->tif_dir.td_nsubifd,o);
_TIFFfree(o);
}
else
n=TIFFWriteDirectoryTagCheckedIfd8Array(tif,ndir,dir,TIFFTAG_SUBIFD,tif->tif_dir.td_nsubifd,tif->tif_dir.td_subifd);
if (!n)
return(0);
/*
* Total hack: if this directory includes a SubIFD
* tag then force the next <n> directories to be
* written as ``sub directories'' of this one. This
* is used to write things like thumbnails and
* image masks that one wants to keep out of the
* normal directory linkage access mechanism.
*/
tif->tif_flags|=TIFF_INSUBIFD;
tif->tif_nsubifd=tif->tif_dir.td_nsubifd;
if (tif->tif_dir.td_nsubifd==1)
tif->tif_subifdoff=0;
else
tif->tif_subifdoff=m;
return(1);
}
static int
TIFFWriteDirectoryTagCheckedAscii(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, char* value)
{
assert(sizeof(char)==1);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_ASCII,count,count,value));
}
static int
TIFFWriteDirectoryTagCheckedUndefinedArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value)
{
assert(sizeof(uint8)==1);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_UNDEFINED,count,count,value));
}
#ifdef notdef
static int
TIFFWriteDirectoryTagCheckedByte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint8 value)
{
assert(sizeof(uint8)==1);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_BYTE,1,1,&value));
}
#endif
static int
TIFFWriteDirectoryTagCheckedByteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint8* value)
{
assert(sizeof(uint8)==1);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_BYTE,count,count,value));
}
#ifdef notdef
static int
TIFFWriteDirectoryTagCheckedSbyte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int8 value)
{
assert(sizeof(int8)==1);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SBYTE,1,1,&value));
}
#endif
static int
TIFFWriteDirectoryTagCheckedSbyteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int8* value)
{
assert(sizeof(int8)==1);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SBYTE,count,count,value));
}
static int
TIFFWriteDirectoryTagCheckedShort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 value)
{
uint16 m;
assert(sizeof(uint16)==2);
m=value;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabShort(&m);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SHORT,1,2,&m));
}
static int
TIFFWriteDirectoryTagCheckedShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint16* value)
{
assert(count<0x80000000);
assert(sizeof(uint16)==2);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfShort(value,count);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SHORT,count,count*2,value));
}
#ifdef notdef
static int
TIFFWriteDirectoryTagCheckedSshort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int16 value)
{
int16 m;
assert(sizeof(int16)==2);
m=value;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabShort((uint16*)(&m));
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SSHORT,1,2,&m));
}
#endif
static int
TIFFWriteDirectoryTagCheckedSshortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int16* value)
{
assert(count<0x80000000);
assert(sizeof(int16)==2);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfShort((uint16*)value,count);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SSHORT,count,count*2,value));
}
static int
TIFFWriteDirectoryTagCheckedLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 value)
{
uint32 m;
assert(sizeof(uint32)==4);
m=value;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong(&m);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG,1,4,&m));
}
static int
TIFFWriteDirectoryTagCheckedLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value)
{
assert(count<0x40000000);
assert(sizeof(uint32)==4);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong(value,count);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG,count,count*4,value));
}
#ifdef notdef
static int
TIFFWriteDirectoryTagCheckedSlong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int32 value)
{
int32 m;
assert(sizeof(int32)==4);
m=value;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong((uint32*)(&m));
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG,1,4,&m));
}
#endif
static int
TIFFWriteDirectoryTagCheckedSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int32* value)
{
assert(count<0x40000000);
assert(sizeof(int32)==4);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong((uint32*)value,count);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG,count,count*4,value));
}
#ifdef notdef
static int
TIFFWriteDirectoryTagCheckedLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint64 value)
{
uint64 m;
assert(sizeof(uint64)==8);
if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","LONG8 not allowed for ClassicTIFF");
return(0);
}
m=value;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong8(&m);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG8,1,8,&m));
}
#endif
static int
TIFFWriteDirectoryTagCheckedLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
{
assert(count<0x20000000);
assert(sizeof(uint64)==8);
if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8Array","LONG8 not allowed for ClassicTIFF");
return(0);
}
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong8(value,count);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG8,count,count*8,value));
}
#ifdef notdef
static int
TIFFWriteDirectoryTagCheckedSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, int64 value)
{
int64 m;
assert(sizeof(int64)==8);
if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedSlong8","SLONG8 not allowed for ClassicTIFF");
return(0);
}
m=value;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong8((uint64*)(&m));
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG8,1,8,&m));
}
#endif
static int
TIFFWriteDirectoryTagCheckedSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int64* value)
{
assert(count<0x20000000);
assert(sizeof(int64)==8);
if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedSlong8Array","SLONG8 not allowed for ClassicTIFF");
return(0);
}
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong8((uint64*)value,count);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG8,count,count*8,value));
}
static int
TIFFWriteDirectoryTagCheckedRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
{
static const char module[] = "TIFFWriteDirectoryTagCheckedRational";
uint32 m[2];
assert(sizeof(uint32)==4);
if (value < 0)
{
TIFFErrorExt(tif->tif_clientdata, module, "Negative value is illegal");
return 0;
}
else if (value != value)
{
TIFFErrorExt(tif->tif_clientdata, module, "Not-a-number value is illegal");
return 0;
}
#ifdef not_def
else if (value==0.0)
{
m[0]=0;
m[1]=1;
}
else if (value <= 0xFFFFFFFFU && value==(double)(uint32)value)
{
m[0]=(uint32)value;
m[1]=1;
}
else if (value<1.0)
{
m[0]=(uint32)(value*0xFFFFFFFF);
m[1]=0xFFFFFFFF;
}
else
{
m[0]=0xFFFFFFFF;
m[1]=(uint32)(0xFFFFFFFF/value);
}
#else
/*--Rational2Double: New function also used for non-custom rational tags.
* However, could be omitted here, because TIFFWriteDirectoryTagCheckedRational() is not used by code for custom tags,
* only by code for named-tiff-tags like FIELD_RESOLUTION and FIELD_POSITION */
else {
DoubleToRational(value, &m[0], &m[1]);
}
#endif
if (tif->tif_flags&TIFF_SWAB)
{
TIFFSwabLong(&m[0]);
TIFFSwabLong(&m[1]);
}
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_RATIONAL,1,8,&m[0]));
}
static int
TIFFWriteDirectoryTagCheckedRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value)
{
static const char module[] = "TIFFWriteDirectoryTagCheckedRationalArray";
uint32* m;
float* na;
uint32* nb;
uint32 nc;
int o;
assert(sizeof(uint32)==4);
m=_TIFFmalloc(count*2*sizeof(uint32));
if (m==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (na=value, nb=m, nc=0; nc<count; na++, nb+=2, nc++)
{
#ifdef not_def
if (*na<=0.0 || *na != *na)
{
nb[0]=0;
nb[1]=1;
}
else if (*na >= 0 && *na <= (float)0xFFFFFFFFU &&
*na==(float)(uint32)(*na))
{
nb[0]=(uint32)(*na);
nb[1]=1;
}
else if (*na<1.0)
{
nb[0]=(uint32)((double)(*na)*0xFFFFFFFF);
nb[1]=0xFFFFFFFF;
}
else
{
nb[0]=0xFFFFFFFF;
nb[1]=(uint32)((double)0xFFFFFFFF/(*na));
}
#else
/*-- Rational2Double: Also for float precision accuracy is sometimes enhanced --*/
DoubleToRational(*na, &nb[0], &nb[1]);
#endif
}
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong(m,count*2);
o=TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_RATIONAL,count,count*8,&m[0]);
_TIFFfree(m);
return(o);
}
static int
TIFFWriteDirectoryTagCheckedSrationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value)
{
static const char module[] = "TIFFWriteDirectoryTagCheckedSrationalArray";
int32* m;
float* na;
int32* nb;
uint32 nc;
int o;
assert(sizeof(int32)==4);
m=_TIFFmalloc(count*2*sizeof(int32));
if (m==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (na=value, nb=m, nc=0; nc<count; na++, nb+=2, nc++)
{
#ifdef not_def
if (*na<0.0)
{
if (*na==(int32)(*na))
{
nb[0]=(int32)(*na);
nb[1]=1;
}
else if (*na>-1.0)
{
nb[0]=-(int32)((double)(-*na)*0x7FFFFFFF);
nb[1]=0x7FFFFFFF;
}
else
{
nb[0]=-0x7FFFFFFF;
nb[1]=(int32)((double)0x7FFFFFFF/(-*na));
}
}
else
{
if (*na==(int32)(*na))
{
nb[0]=(int32)(*na);
nb[1]=1;
}
else if (*na<1.0)
{
nb[0]=(int32)((double)(*na)*0x7FFFFFFF);
nb[1]=0x7FFFFFFF;
}
else
{
nb[0]=0x7FFFFFFF;
nb[1]=(int32)((double)0x7FFFFFFF/(*na));
}
}
#else
/*-- Rational2Double: Also for float precision accuracy is sometimes enhanced --*/
DoubleToSrational(*na, &nb[0], &nb[1]);
#endif
}
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong((uint32*)m,count*2);
o=TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SRATIONAL,count,count*8,&m[0]);
_TIFFfree(m);
return(o);
}
/*-- Rational2Double: additional write functions for double arrays */
static int
TIFFWriteDirectoryTagCheckedRationalDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)
{
static const char module[] = "TIFFWriteDirectoryTagCheckedRationalDoubleArray";
uint32* m;
double* na;
uint32* nb;
uint32 nc;
int o;
assert(sizeof(uint32)==4);
m=_TIFFmalloc(count*2*sizeof(uint32));
if (m==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (na=value, nb=m, nc=0; nc<count; na++, nb+=2, nc++)
{
DoubleToRational(*na, &nb[0], &nb[1]);
}
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong(m,count*2);
o=TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_RATIONAL,count,count*8,&m[0]);
_TIFFfree(m);
return(o);
} /*-- TIFFWriteDirectoryTagCheckedRationalDoubleArray() ------- */
static int
TIFFWriteDirectoryTagCheckedSrationalDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)
{
static const char module[] = "TIFFWriteDirectoryTagCheckedSrationalDoubleArray";
int32* m;
double* na;
int32* nb;
uint32 nc;
int o;
assert(sizeof(int32)==4);
m=_TIFFmalloc(count*2*sizeof(int32));
if (m==NULL)
{
TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");
return(0);
}
for (na=value, nb=m, nc=0; nc<count; na++, nb+=2, nc++)
{
DoubleToSrational(*na, &nb[0], &nb[1]);
}
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong((uint32*)m,count*2);
o=TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SRATIONAL,count,count*8,&m[0]);
_TIFFfree(m);
return(o);
} /*--- TIFFWriteDirectoryTagCheckedSrationalDoubleArray() -------- */
#if 0
static
void DoubleToRational_direct(double value, unsigned long *num, unsigned long *denom)
{
/*--- OLD Code for debugging and comparison ---- */
/* code merged from TIFFWriteDirectoryTagCheckedRationalArray() and TIFFWriteDirectoryTagCheckedRational() */
/* First check for zero and also check for negative numbers (which are illegal for RATIONAL)
* and also check for "not-a-number". In each case just set this to zero to support also rational-arrays.
*/
if (value<=0.0 || value != value)
{
*num=0;
*denom=1;
}
else if (value <= 0xFFFFFFFFU && (value==(double)(uint32)(value))) /* check for integer values */
{
*num=(uint32)(value);
*denom=1;
}
else if (value<1.0)
{
*num = (uint32)((value) * (double)0xFFFFFFFFU);
*denom=0xFFFFFFFFU;
}
else
{
*num=0xFFFFFFFFU;
*denom=(uint32)((double)0xFFFFFFFFU/(value));
}
} /*-- DoubleToRational_direct() -------------- */
#endif
#if 0
static
void DoubleToSrational_direct(double value, long *num, long *denom)
{
/*--- OLD Code for debugging and comparison -- SIGNED-version ----*/
/* code was amended from original TIFFWriteDirectoryTagCheckedSrationalArray() */
/* First check for zero and also check for negative numbers (which are illegal for RATIONAL)
* and also check for "not-a-number". In each case just set this to zero to support also rational-arrays.
*/
if (value<0.0)
{
if (value==(int32)(value))
{
*num=(int32)(value);
*denom=1;
}
else if (value>-1.0)
{
*num=-(int32)((-value) * (double)0x7FFFFFFF);
*denom=0x7FFFFFFF;
}
else
{
*num=-0x7FFFFFFF;
*denom=(int32)((double)0x7FFFFFFF / (-value));
}
}
else
{
if (value==(int32)(value))
{
*num=(int32)(value);
*denom=1;
}
else if (value<1.0)
{
*num=(int32)((value) *(double)0x7FFFFFFF);
*denom=0x7FFFFFFF;
}
else
{
*num=0x7FFFFFFF;
*denom=(int32)((double)0x7FFFFFFF / (value));
}
}
} /*-- DoubleToSrational_direct() --------------*/
#endif
//#define DOUBLE2RAT_DEBUGOUTPUT
/** ----- Rational2Double: Double To Rational Conversion ----------------------------------------------------------
* There is a mathematical theorem to convert real numbers into a rational (integer fraction) number.
* This is called "continuous fraction" which uses the Euclidean algorithm to find the greatest common divisor (GCD).
* (ref. e.g. https://de.wikipedia.org/wiki/Kettenbruch or https://en.wikipedia.org/wiki/Continued_fraction
* https://en.wikipedia.org/wiki/Euclidean_algorithm)
* The following functions implement the
* - ToRationalEuclideanGCD() auxiliary function which mainly implements euclidean GCD
* - DoubleToRational() conversion function for un-signed rationals
* - DoubleToSrational() conversion function for signed rationals
------------------------------------------------------------------------------------------------------------------*/
/**---- ToRationalEuclideanGCD() -----------------------------------------
* Calculates the rational fractional of a double input value
* using the Euclidean algorithm to find the greatest common divisor (GCD)
------------------------------------------------------------------------*/
static
void ToRationalEuclideanGCD(double value, int blnUseSignedRange, int blnUseSmallRange, unsigned long long *ullNum, unsigned long long *ullDenom)
{
/* Internally, the integer variables can be bigger than the external ones,
* as long as the result will fit into the external variable size.
*/
unsigned long long val, numSum[3] = { 0, 1, 0 }, denomSum[3] = { 1, 0, 0 };
unsigned long long aux, bigNum, bigDenom;
unsigned long long returnLimit;
int i;
unsigned long long nMax;
double fMax;
unsigned long maxDenom;
/*-- nMax and fMax defines the initial accuracy of the starting fractional,
* or better, the highest used integer numbers used within the starting fractional (bigNum/bigDenom).
* There are two approaches, which can accidentally lead to different accuracies just depending on the value.
* Therefore, blnUseSmallRange steers this behavior.
* For long long nMax = ((9223372036854775807-1)/2); for long nMax = ((2147483647-1)/2);
*/
if (blnUseSmallRange) {
nMax = (unsigned long long)((2147483647 - 1) / 2); /* for ULONG range */
}
else {
nMax = ((9223372036854775807 - 1) / 2); /* for ULLONG range */
}
fMax = (double)nMax;
/*-- For the Euclidean GCD define the denominator range, so that it stays within size of unsigned long variables.
* maxDenom should be LONG_MAX for negative values and ULONG_MAX for positive ones.
* Also the final returned value of ullNum and ullDenom is limited according to signed- or unsigned-range.
*/
if (blnUseSignedRange) {
maxDenom = 2147483647UL; /*LONG_MAX = 0x7FFFFFFFUL*/
returnLimit = maxDenom;
}
else {
maxDenom = 0xFFFFFFFFUL; /*ULONG_MAX = 0xFFFFFFFFUL*/
returnLimit = maxDenom;
}
/*-- First generate a rational fraction (bigNum/bigDenom) which represents the value
* as a rational number with the highest accuracy. Therefore, unsigned long long (uint64) is needed.
* This rational fraction is then reduced using the Euclidean algorithm to find the greatest common divisor (GCD).
* bigNum = big numinator of value without fraction (or cut residual fraction)
* bigDenom = big denominator of value
*-- Break-criteria so that uint64 cast to "bigNum" introduces no error and bigDenom has no overflow,
* and stop with enlargement of fraction when the double-value of it reaches an integer number without fractional part.
*/
bigDenom = 1;
while ((value != floor(value)) && (value < fMax) && (bigDenom < nMax)) {
bigDenom <<= 1;
value *= 2;
}
bigNum = (unsigned long long)value;
/*-- Start Euclidean algorithm to find the greatest common divisor (GCD) -- */
#define MAX_ITERATIONS 64
for (i = 0; i < MAX_ITERATIONS; i++) {
/* if bigDenom is not zero, calculate integer part of fraction. */
if (bigDenom == 0) {
val = 0;
break;
}
else {
val = bigNum / bigDenom;
}
/* Set bigDenom to reminder of bigNum/bigDenom and bigNum to previous denominator bigDenom. */
aux = bigNum;
bigNum = bigDenom;
bigDenom = aux % bigDenom;
/* calculate next denominator and check for its given maximum */
aux = val;
if (denomSum[1] * val + denomSum[0] >= maxDenom) {
aux = (maxDenom - denomSum[0]) / denomSum[1];
if (aux * 2 >= val || denomSum[1] >= maxDenom)
i = (MAX_ITERATIONS + 1); /* exit but execute rest of for-loop */
else
break;
}
/* calculate next numerator to numSum2 and save previous one to numSum0; numSum1 just copy of numSum2. */
numSum[2] = aux * numSum[1] + numSum[0];
numSum[0] = numSum[1];
numSum[1] = numSum[2];
/* calculate next denominator to denomSum2 and save previous one to denomSum0; denomSum1 just copy of denomSum2. */
denomSum[2] = aux * denomSum[1] + denomSum[0];
denomSum[0] = denomSum[1];
denomSum[1] = denomSum[2];
}
/*-- Check and adapt for final variable size and return values; reduces internal accuracy; denominator is kept in ULONG-range with maxDenom -- */
while (numSum[1] > returnLimit || denomSum[1] > returnLimit) {
numSum[1] = numSum[1] / 2;
denomSum[1] = denomSum[1] / 2;
}
/* return values */
*ullNum = numSum[1];
*ullDenom = denomSum[1];
} /*-- ToRationalEuclideanGCD() -------------- */
/**---- DoubleToRational() -----------------------------------------------
* Calculates the rational fractional of a double input value
* for UN-SIGNED rationals,
* using the Euclidean algorithm to find the greatest common divisor (GCD)
------------------------------------------------------------------------*/
static
void DoubleToRational(double value, uint32 *num, uint32 *denom)
{
/*---- UN-SIGNED RATIONAL ---- */
double dblDiff, dblDiff2;
unsigned long long ullNum, ullDenom, ullNum2, ullDenom2;
/*-- Check for negative values. If so it is an error. */
/* Test written that way to catch NaN */
if (!(value >= 0)) {
*num = *denom = 0;
TIFFErrorExt(0, "TIFFLib: DoubleToRational()", " Negative Value for Unsigned Rational given.");
return;
}
/*-- Check for too big numbers (> ULONG_MAX) -- */
if (value > 0xFFFFFFFFUL) {
*num = 0xFFFFFFFFU;
*denom = 0;
return;
}
/*-- Check for easy integer numbers -- */
if (value == (uint32)(value)) {
*num = (uint32)value;
*denom = 1;
return;
}
/*-- Check for too small numbers for "unsigned long" type rationals -- */
if (value < 1.0 / (double)0xFFFFFFFFUL) {
*num = 0;
*denom = 0xFFFFFFFFU;
return;
}
/*-- There are two approaches using the Euclidean algorithm,
* which can accidentally lead to different accuracies just depending on the value.
* Try both and define which one was better.
*/
ToRationalEuclideanGCD(value, FALSE, FALSE, &ullNum, &ullDenom);
ToRationalEuclideanGCD(value, FALSE, TRUE, &ullNum2, &ullDenom2);
/*-- Double-Check, that returned values fit into ULONG :*/
if (ullNum > 0xFFFFFFFFUL || ullDenom > 0xFFFFFFFFUL || ullNum2 > 0xFFFFFFFFUL || ullDenom2 > 0xFFFFFFFFUL) {
#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
TIFFErrorExt(0, "TIFFLib: DoubleToRational()", " Num or Denom exceeds ULONG: val=%14.6f, num=%I64u, denom=%I64u | num2=%I64u, denom2=%I64u", value, ullNum, ullDenom, ullNum2, ullDenom2);
#else
TIFFErrorExt(0, "TIFFLib: DoubleToRational()", " Num or Denom exceeds ULONG: val=%14.6f, num=%12llu, denom=%12llu | num2=%12llu, denom2=%12llu", value, ullNum, ullDenom, ullNum2, ullDenom2);
#endif
assert(0);
}
/* Check, which one has higher accuracy and take that. */
dblDiff = fabs(value - ((double)ullNum / (double)ullDenom));
dblDiff2 = fabs(value - ((double)ullNum2 / (double)ullDenom2));
if (dblDiff < dblDiff2) {
*num = (uint32)ullNum;
*denom = (uint32)ullDenom;
}
else {
*num = (uint32)ullNum2;
*denom = (uint32)ullDenom2;
}
} /*-- DoubleToRational() -------------- */
/**---- DoubleToSrational() -----------------------------------------------
* Calculates the rational fractional of a double input value
* for SIGNED rationals,
* using the Euclidean algorithm to find the greatest common divisor (GCD)
------------------------------------------------------------------------*/
static
void DoubleToSrational(double value, int32 *num, int32 *denom)
{
/*---- SIGNED RATIONAL ----*/
int neg = 1;
double dblDiff, dblDiff2;
unsigned long long ullNum, ullDenom, ullNum2, ullDenom2;
/*-- Check for negative values and use then the positive one for internal calculations, but take the sign into account before returning. */
if (value < 0) { neg = -1; value = -value; }
/*-- Check for too big numbers (> LONG_MAX) -- */
if (value > 0x7FFFFFFFL) {
*num = 0x7FFFFFFFL;
*denom = 0;
return;
}
/*-- Check for easy numbers -- */
if (value == (int32)(value)) {
*num = (int32)(neg * value);
*denom = 1;
return;
}
/*-- Check for too small numbers for "long" type rationals -- */
if (value < 1.0 / (double)0x7FFFFFFFL) {
*num = 0;
*denom = 0x7FFFFFFFL;
return;
}
/*-- There are two approaches using the Euclidean algorithm,
* which can accidentally lead to different accuracies just depending on the value.
* Try both and define which one was better.
* Furthermore, set behavior of ToRationalEuclideanGCD() to the range of signed-long.
*/
ToRationalEuclideanGCD(value, TRUE, FALSE, &ullNum, &ullDenom);
ToRationalEuclideanGCD(value, TRUE, TRUE, &ullNum2, &ullDenom2);
/*-- Double-Check, that returned values fit into LONG :*/
if (ullNum > 0x7FFFFFFFL || ullDenom > 0x7FFFFFFFL || ullNum2 > 0x7FFFFFFFL || ullDenom2 > 0x7FFFFFFFL) {
#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
TIFFErrorExt(0, "TIFFLib: DoubleToSrational()", " Num or Denom exceeds LONG: val=%14.6f, num=%I64u, denom=%I64u | num2=%I64u, denom2=%I64u", neg*value, ullNum, ullDenom, ullNum2, ullDenom2);
#else
TIFFErrorExt(0, "TIFFLib: DoubleToSrational()", " Num or Denom exceeds LONG: val=%14.6f, num=%12llu, denom=%12llu | num2=%12llu, denom2=%12llu", neg*value, ullNum, ullDenom, ullNum2, ullDenom2);
#endif
assert(0);
}
/* Check, which one has higher accuracy and take that. */
dblDiff = fabs(value - ((double)ullNum / (double)ullDenom));
dblDiff2 = fabs(value - ((double)ullNum2 / (double)ullDenom2));
if (dblDiff < dblDiff2) {
*num = (int32)(neg * (long)ullNum);
*denom = (int32)ullDenom;
}
else {
*num = (int32)(neg * (long)ullNum2);
*denom = (int32)ullDenom2;
}
} /*-- DoubleToSrational() --------------*/
#ifdef notdef
static int
TIFFWriteDirectoryTagCheckedFloat(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, float value)
{
float m;
assert(sizeof(float)==4);
m=value;
TIFFCvtNativeToIEEEFloat(tif,1,&m);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabFloat(&m);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_FLOAT,1,4,&m));
}
#endif
static int
TIFFWriteDirectoryTagCheckedFloatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, float* value)
{
assert(count<0x40000000);
assert(sizeof(float)==4);
TIFFCvtNativeToIEEEFloat(tif,count,&value);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfFloat(value,count);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_FLOAT,count,count*4,value));
}
#ifdef notdef
static int
TIFFWriteDirectoryTagCheckedDouble(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
{
double m;
assert(sizeof(double)==8);
m=value;
TIFFCvtNativeToIEEEDouble(tif,1,&m);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabDouble(&m);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_DOUBLE,1,8,&m));
}
#endif
static int
TIFFWriteDirectoryTagCheckedDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)
{
assert(count<0x20000000);
assert(sizeof(double)==8);
TIFFCvtNativeToIEEEDouble(tif,count,&value);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfDouble(value,count);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_DOUBLE,count,count*8,value));
}
static int
TIFFWriteDirectoryTagCheckedIfdArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value)
{
assert(count<0x40000000);
assert(sizeof(uint32)==4);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong(value,count);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_IFD,count,count*4,value));
}
static int
TIFFWriteDirectoryTagCheckedIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)
{
assert(count<0x20000000);
assert(sizeof(uint64)==8);
assert(tif->tif_flags&TIFF_BIGTIFF);
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong8(value,count);
return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_IFD8,count,count*8,value));
}
static int
TIFFWriteDirectoryTagData(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint16 datatype, uint32 count, uint32 datalength, void* data)
{
static const char module[] = "TIFFWriteDirectoryTagData";
uint32 m;
m=0;
while (m<(*ndir))
{
assert(dir[m].tdir_tag!=tag);
if (dir[m].tdir_tag>tag)
break;
m++;
}
if (m<(*ndir))
{
uint32 n;
for (n=*ndir; n>m; n--)
dir[n]=dir[n-1];
}
dir[m].tdir_tag=tag;
dir[m].tdir_type=datatype;
dir[m].tdir_count=count;
dir[m].tdir_offset.toff_long8 = 0;
if (datalength<=((tif->tif_flags&TIFF_BIGTIFF)?0x8U:0x4U))
{
if( data && datalength )
{
_TIFFmemcpy(&dir[m].tdir_offset,data,datalength);
}
}
else
{
uint64 na,nb;
na=tif->tif_dataoff;
nb=na+datalength;
if (!(tif->tif_flags&TIFF_BIGTIFF))
nb=(uint32)nb;
if ((nb<na)||(nb<datalength))
{
TIFFErrorExt(tif->tif_clientdata,module,"Maximum TIFF file size exceeded");
return(0);
}
if (!SeekOK(tif,na))
{
TIFFErrorExt(tif->tif_clientdata,module,"IO error writing tag data");
return(0);
}
assert(datalength<0x80000000UL);
if (!WriteOK(tif,data,(tmsize_t)datalength))
{
TIFFErrorExt(tif->tif_clientdata,module,"IO error writing tag data");
return(0);
}
tif->tif_dataoff=nb;
if (tif->tif_dataoff&1)
tif->tif_dataoff++;
if (!(tif->tif_flags&TIFF_BIGTIFF))
{
uint32 o;
o=(uint32)na;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong(&o);
_TIFFmemcpy(&dir[m].tdir_offset,&o,4);
}
else
{
dir[m].tdir_offset.toff_long8 = na;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong8(&dir[m].tdir_offset.toff_long8);
}
}
(*ndir)++;
return(1);
}
/*
* Link the current directory into the directory chain for the file.
*/
static int
TIFFLinkDirectory(TIFF* tif)
{
static const char module[] = "TIFFLinkDirectory";
tif->tif_diroff = (TIFFSeekFile(tif,0,SEEK_END)+1) & (~((toff_t)1));
/*
* Handle SubIFDs
*/
if (tif->tif_flags & TIFF_INSUBIFD)
{
if (!(tif->tif_flags&TIFF_BIGTIFF))
{
uint32 m;
m = (uint32)tif->tif_diroff;
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabLong(&m);
(void) TIFFSeekFile(tif, tif->tif_subifdoff, SEEK_SET);
if (!WriteOK(tif, &m, 4)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error writing SubIFD directory link");
return (0);
}
/*
* Advance to the next SubIFD or, if this is
* the last one configured, revert back to the
* normal directory linkage.
*/
if (--tif->tif_nsubifd)
tif->tif_subifdoff += 4;
else
tif->tif_flags &= ~TIFF_INSUBIFD;
return (1);
}
else
{
uint64 m;
m = tif->tif_diroff;
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabLong8(&m);
(void) TIFFSeekFile(tif, tif->tif_subifdoff, SEEK_SET);
if (!WriteOK(tif, &m, 8)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error writing SubIFD directory link");
return (0);
}
/*
* Advance to the next SubIFD or, if this is
* the last one configured, revert back to the
* normal directory linkage.
*/
if (--tif->tif_nsubifd)
tif->tif_subifdoff += 8;
else
tif->tif_flags &= ~TIFF_INSUBIFD;
return (1);
}
}
if (!(tif->tif_flags&TIFF_BIGTIFF))
{
uint32 m;
uint32 nextdir;
m = (uint32)(tif->tif_diroff);
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabLong(&m);
if (tif->tif_header.classic.tiff_diroff == 0) {
/*
* First directory, overwrite offset in header.
*/
tif->tif_header.classic.tiff_diroff = (uint32) tif->tif_diroff;
(void) TIFFSeekFile(tif,4, SEEK_SET);
if (!WriteOK(tif, &m, 4)) {
TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
"Error writing TIFF header");
return (0);
}
return (1);
}
/*
* Not the first directory, search to the last and append.
*/
nextdir = tif->tif_header.classic.tiff_diroff;
while(1) {
uint16 dircount;
uint32 nextnextdir;
if (!SeekOK(tif, nextdir) ||
!ReadOK(tif, &dircount, 2)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error fetching directory count");
return (0);
}
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabShort(&dircount);
(void) TIFFSeekFile(tif,
nextdir+2+dircount*12, SEEK_SET);
if (!ReadOK(tif, &nextnextdir, 4)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error fetching directory link");
return (0);
}
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabLong(&nextnextdir);
if (nextnextdir==0)
{
(void) TIFFSeekFile(tif,
nextdir+2+dircount*12, SEEK_SET);
if (!WriteOK(tif, &m, 4)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error writing directory link");
return (0);
}
break;
}
nextdir=nextnextdir;
}
}
else
{
uint64 m;
uint64 nextdir;
m = tif->tif_diroff;
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabLong8(&m);
if (tif->tif_header.big.tiff_diroff == 0) {
/*
* First directory, overwrite offset in header.
*/
tif->tif_header.big.tiff_diroff = tif->tif_diroff;
(void) TIFFSeekFile(tif,8, SEEK_SET);
if (!WriteOK(tif, &m, 8)) {
TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
"Error writing TIFF header");
return (0);
}
return (1);
}
/*
* Not the first directory, search to the last and append.
*/
nextdir = tif->tif_header.big.tiff_diroff;
while(1) {
uint64 dircount64;
uint16 dircount;
uint64 nextnextdir;
if (!SeekOK(tif, nextdir) ||
!ReadOK(tif, &dircount64, 8)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error fetching directory count");
return (0);
}
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabLong8(&dircount64);
if (dircount64>0xFFFF)
{
TIFFErrorExt(tif->tif_clientdata, module,
"Sanity check on tag count failed, likely corrupt TIFF");
return (0);
}
dircount=(uint16)dircount64;
(void) TIFFSeekFile(tif,
nextdir+8+dircount*20, SEEK_SET);
if (!ReadOK(tif, &nextnextdir, 8)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error fetching directory link");
return (0);
}
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabLong8(&nextnextdir);
if (nextnextdir==0)
{
(void) TIFFSeekFile(tif,
nextdir+8+dircount*20, SEEK_SET);
if (!WriteOK(tif, &m, 8)) {
TIFFErrorExt(tif->tif_clientdata, module,
"Error writing directory link");
return (0);
}
break;
}
nextdir=nextnextdir;
}
}
return (1);
}
/************************************************************************/
/* TIFFRewriteField() */
/* */
/* Rewrite a field in the directory on disk without regard to */
/* updating the TIFF directory structure in memory. Currently */
/* only supported for field that already exist in the on-disk */
/* directory. Mainly used for updating stripoffset / */
/* stripbytecount values after the directory is already on */
/* disk. */
/* */
/* Returns zero on failure, and one on success. */
/************************************************************************/
int
_TIFFRewriteField(TIFF* tif, uint16 tag, TIFFDataType in_datatype,
tmsize_t count, void* data)
{
static const char module[] = "TIFFResetField";
/* const TIFFField* fip = NULL; */
uint16 dircount;
tmsize_t dirsize;
uint8 direntry_raw[20];
uint16 entry_tag = 0;
uint16 entry_type = 0;
uint64 entry_count = 0;
uint64 entry_offset = 0;
int value_in_entry = 0;
uint64 read_offset;
uint8 *buf_to_write = NULL;
TIFFDataType datatype;
/* -------------------------------------------------------------------- */
/* Find field definition. */
/* -------------------------------------------------------------------- */
/*fip =*/ TIFFFindField(tif, tag, TIFF_ANY);
/* -------------------------------------------------------------------- */
/* Do some checking this is a straight forward case. */
/* -------------------------------------------------------------------- */
if( isMapped(tif) )
{
TIFFErrorExt( tif->tif_clientdata, module,
"Memory mapped files not currently supported for this operation." );
return 0;
}
if( tif->tif_diroff == 0 )
{
TIFFErrorExt( tif->tif_clientdata, module,
"Attempt to reset field on directory not already on disk." );
return 0;
}
/* -------------------------------------------------------------------- */
/* Read the directory entry count. */
/* -------------------------------------------------------------------- */
if (!SeekOK(tif, tif->tif_diroff)) {
TIFFErrorExt(tif->tif_clientdata, module,
"%s: Seek error accessing TIFF directory",
tif->tif_name);
return 0;
}
read_offset = tif->tif_diroff;
if (!(tif->tif_flags&TIFF_BIGTIFF))
{
if (!ReadOK(tif, &dircount, sizeof (uint16))) {
TIFFErrorExt(tif->tif_clientdata, module,
"%s: Can not read TIFF directory count",
tif->tif_name);
return 0;
}
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabShort(&dircount);
dirsize = 12;
read_offset += 2;
} else {
uint64 dircount64;
if (!ReadOK(tif, &dircount64, sizeof (uint64))) {
TIFFErrorExt(tif->tif_clientdata, module,
"%s: Can not read TIFF directory count",
tif->tif_name);
return 0;
}
if (tif->tif_flags & TIFF_SWAB)
TIFFSwabLong8(&dircount64);
dircount = (uint16)dircount64;
dirsize = 20;
read_offset += 8;
}
/* -------------------------------------------------------------------- */
/* Read through directory to find target tag. */
/* -------------------------------------------------------------------- */
while( dircount > 0 )
{
if (!ReadOK(tif, direntry_raw, dirsize)) {
TIFFErrorExt(tif->tif_clientdata, module,
"%s: Can not read TIFF directory entry.",
tif->tif_name);
return 0;
}
memcpy( &entry_tag, direntry_raw + 0, sizeof(uint16) );
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabShort( &entry_tag );
if( entry_tag == tag )
break;
read_offset += dirsize;
}
if( entry_tag != tag )
{
TIFFErrorExt(tif->tif_clientdata, module,
"%s: Could not find tag %d.",
tif->tif_name, tag );
return 0;
}
/* -------------------------------------------------------------------- */
/* Extract the type, count and offset for this entry. */
/* -------------------------------------------------------------------- */
memcpy( &entry_type, direntry_raw + 2, sizeof(uint16) );
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabShort( &entry_type );
if (!(tif->tif_flags&TIFF_BIGTIFF))
{
uint32 value;
memcpy( &value, direntry_raw + 4, sizeof(uint32) );
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong( &value );
entry_count = value;
memcpy( &value, direntry_raw + 8, sizeof(uint32) );
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong( &value );
entry_offset = value;
}
else
{
memcpy( &entry_count, direntry_raw + 4, sizeof(uint64) );
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong8( &entry_count );
memcpy( &entry_offset, direntry_raw + 12, sizeof(uint64) );
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong8( &entry_offset );
}
/* -------------------------------------------------------------------- */
/* When a dummy tag was written due to TIFFDeferStrileArrayWriting() */
/* -------------------------------------------------------------------- */
if( entry_offset == 0 && entry_count == 0 && entry_type == 0 )
{
if( tag == TIFFTAG_TILEOFFSETS || tag == TIFFTAG_STRIPOFFSETS )
{
entry_type = (tif->tif_flags&TIFF_BIGTIFF) ? TIFF_LONG8 : TIFF_LONG;
}
else
{
int write_aslong8 = 1;
if( count > 1 && tag == TIFFTAG_STRIPBYTECOUNTS )
{
write_aslong8 = WriteAsLong8(tif, TIFFStripSize64(tif));
}
else if( count > 1 && tag == TIFFTAG_TILEBYTECOUNTS )
{
write_aslong8 = WriteAsLong8(tif, TIFFTileSize64(tif));
}
if( write_aslong8 )
{
entry_type = TIFF_LONG8;
}
else
{
int write_aslong4 = 1;
if( count > 1 && tag == TIFFTAG_STRIPBYTECOUNTS )
{
write_aslong4 = WriteAsLong4(tif, TIFFStripSize64(tif));
}
else if( count > 1 && tag == TIFFTAG_TILEBYTECOUNTS )
{
write_aslong4 = WriteAsLong4(tif, TIFFTileSize64(tif));
}
if( write_aslong4 )
{
entry_type = TIFF_LONG;
}
else
{
entry_type = TIFF_SHORT;
}
}
}
}
/* -------------------------------------------------------------------- */
/* What data type do we want to write this as? */
/* -------------------------------------------------------------------- */
if( TIFFDataWidth(in_datatype) == 8 && !(tif->tif_flags&TIFF_BIGTIFF) )
{
if( in_datatype == TIFF_LONG8 )
datatype = entry_type == TIFF_SHORT ? TIFF_SHORT : TIFF_LONG;
else if( in_datatype == TIFF_SLONG8 )
datatype = TIFF_SLONG;
else if( in_datatype == TIFF_IFD8 )
datatype = TIFF_IFD;
else
datatype = in_datatype;
}
else
{
if( in_datatype == TIFF_LONG8 &&
(entry_type == TIFF_SHORT || entry_type == TIFF_LONG ||
entry_type == TIFF_LONG8 ) )
datatype = entry_type;
else if( in_datatype == TIFF_SLONG8 &&
(entry_type == TIFF_SLONG || entry_type == TIFF_SLONG8 ) )
datatype = entry_type;
else if( in_datatype == TIFF_IFD8 &&
(entry_type == TIFF_IFD || entry_type == TIFF_IFD8 ) )
datatype = entry_type;
else
datatype = in_datatype;
}
/* -------------------------------------------------------------------- */
/* Prepare buffer of actual data to write. This includes */
/* swabbing as needed. */
/* -------------------------------------------------------------------- */
buf_to_write =
(uint8 *)_TIFFCheckMalloc(tif, count, TIFFDataWidth(datatype),
"for field buffer.");
if (!buf_to_write)
return 0;
if( datatype == in_datatype )
memcpy( buf_to_write, data, count * TIFFDataWidth(datatype) );
else if( datatype == TIFF_SLONG && in_datatype == TIFF_SLONG8 )
{
tmsize_t i;
for( i = 0; i < count; i++ )
{
((int32 *) buf_to_write)[i] =
(int32) ((int64 *) data)[i];
if( (int64) ((int32 *) buf_to_write)[i] != ((int64 *) data)[i] )
{
_TIFFfree( buf_to_write );
TIFFErrorExt( tif->tif_clientdata, module,
"Value exceeds 32bit range of output type." );
return 0;
}
}
}
else if( (datatype == TIFF_LONG && in_datatype == TIFF_LONG8)
|| (datatype == TIFF_IFD && in_datatype == TIFF_IFD8) )
{
tmsize_t i;
for( i = 0; i < count; i++ )
{
((uint32 *) buf_to_write)[i] =
(uint32) ((uint64 *) data)[i];
if( (uint64) ((uint32 *) buf_to_write)[i] != ((uint64 *) data)[i] )
{
_TIFFfree( buf_to_write );
TIFFErrorExt( tif->tif_clientdata, module,
"Value exceeds 32bit range of output type." );
return 0;
}
}
}
else if( datatype == TIFF_SHORT && in_datatype == TIFF_LONG8 )
{
tmsize_t i;
for( i = 0; i < count; i++ )
{
((uint16 *) buf_to_write)[i] =
(uint16) ((uint64 *) data)[i];
if( (uint64) ((uint16 *) buf_to_write)[i] != ((uint64 *) data)[i] )
{
_TIFFfree( buf_to_write );
TIFFErrorExt( tif->tif_clientdata, module,
"Value exceeds 16bit range of output type." );
return 0;
}
}
}
else
{
TIFFErrorExt( tif->tif_clientdata, module,
"Unhandled type conversion." );
return 0;
}
if( TIFFDataWidth(datatype) > 1 && (tif->tif_flags&TIFF_SWAB) )
{
if( TIFFDataWidth(datatype) == 2 )
TIFFSwabArrayOfShort( (uint16 *) buf_to_write, count );
else if( TIFFDataWidth(datatype) == 4 )
TIFFSwabArrayOfLong( (uint32 *) buf_to_write, count );
else if( TIFFDataWidth(datatype) == 8 )
TIFFSwabArrayOfLong8( (uint64 *) buf_to_write, count );
}
/* -------------------------------------------------------------------- */
/* Is this a value that fits into the directory entry? */
/* -------------------------------------------------------------------- */
if (!(tif->tif_flags&TIFF_BIGTIFF))
{
if( TIFFDataWidth(datatype) * count <= 4 )
{
entry_offset = read_offset + 8;
value_in_entry = 1;
}
}
else
{
if( TIFFDataWidth(datatype) * count <= 8 )
{
entry_offset = read_offset + 12;
value_in_entry = 1;
}
}
if( (tag == TIFFTAG_TILEOFFSETS || tag == TIFFTAG_STRIPOFFSETS) &&
tif->tif_dir.td_stripoffset_entry.tdir_count == 0 &&
tif->tif_dir.td_stripoffset_entry.tdir_type == 0 &&
tif->tif_dir.td_stripoffset_entry.tdir_offset.toff_long8 == 0 )
{
tif->tif_dir.td_stripoffset_entry.tdir_type = datatype;
tif->tif_dir.td_stripoffset_entry.tdir_count = count;
}
else if( (tag == TIFFTAG_TILEBYTECOUNTS || tag == TIFFTAG_STRIPBYTECOUNTS) &&
tif->tif_dir.td_stripbytecount_entry.tdir_count == 0 &&
tif->tif_dir.td_stripbytecount_entry.tdir_type == 0 &&
tif->tif_dir.td_stripbytecount_entry.tdir_offset.toff_long8 == 0 )
{
tif->tif_dir.td_stripbytecount_entry.tdir_type = datatype;
tif->tif_dir.td_stripbytecount_entry.tdir_count = count;
}
/* -------------------------------------------------------------------- */
/* If the tag type, and count match, then we just write it out */
/* over the old values without altering the directory entry at */
/* all. */
/* -------------------------------------------------------------------- */
if( entry_count == (uint64)count && entry_type == (uint16) datatype )
{
if (!SeekOK(tif, entry_offset)) {
_TIFFfree( buf_to_write );
TIFFErrorExt(tif->tif_clientdata, module,
"%s: Seek error accessing TIFF directory",
tif->tif_name);
return 0;
}
if (!WriteOK(tif, buf_to_write, count*TIFFDataWidth(datatype))) {
_TIFFfree( buf_to_write );
TIFFErrorExt(tif->tif_clientdata, module,
"Error writing directory link");
return (0);
}
_TIFFfree( buf_to_write );
return 1;
}
/* -------------------------------------------------------------------- */
/* Otherwise, we write the new tag data at the end of the file. */
/* -------------------------------------------------------------------- */
if( !value_in_entry )
{
entry_offset = TIFFSeekFile(tif,0,SEEK_END);
if (!WriteOK(tif, buf_to_write, count*TIFFDataWidth(datatype))) {
_TIFFfree( buf_to_write );
TIFFErrorExt(tif->tif_clientdata, module,
"Error writing directory link");
return (0);
}
}
else
{
memcpy( &entry_offset, buf_to_write, count*TIFFDataWidth(datatype));
}
_TIFFfree( buf_to_write );
buf_to_write = 0;
/* -------------------------------------------------------------------- */
/* Adjust the directory entry. */
/* -------------------------------------------------------------------- */
entry_type = datatype;
entry_count = (uint64)count;
memcpy( direntry_raw + 2, &entry_type, sizeof(uint16) );
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabShort( (uint16 *) (direntry_raw + 2) );
if (!(tif->tif_flags&TIFF_BIGTIFF))
{
uint32 value;
value = (uint32) entry_count;
memcpy( direntry_raw + 4, &value, sizeof(uint32) );
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong( (uint32 *) (direntry_raw + 4) );
value = (uint32) entry_offset;
memcpy( direntry_raw + 8, &value, sizeof(uint32) );
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong( (uint32 *) (direntry_raw + 8) );
}
else
{
memcpy( direntry_raw + 4, &entry_count, sizeof(uint64) );
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong8( (uint64 *) (direntry_raw + 4) );
memcpy( direntry_raw + 12, &entry_offset, sizeof(uint64) );
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabLong8( (uint64 *) (direntry_raw + 12) );
}
/* -------------------------------------------------------------------- */
/* Write the directory entry out to disk. */
/* -------------------------------------------------------------------- */
if (!SeekOK(tif, read_offset )) {
TIFFErrorExt(tif->tif_clientdata, module,
"%s: Seek error accessing TIFF directory",
tif->tif_name);
return 0;
}
if (!WriteOK(tif, direntry_raw,dirsize))
{
TIFFErrorExt(tif->tif_clientdata, module,
"%s: Can not write TIFF directory entry.",
tif->tif_name);
return 0;
}
return 1;
}
/* vim: set ts=8 sts=8 sw=8 noet: */
/*
* Local Variables:
* mode: c
* c-basic-offset: 8
* fill-column: 78
* End:
*/