+++ /dev/null
-/* $Id: tif_dirwrite.c,v 1.1 2005/06/17 13:54:52 vp153 Exp $ */
-
-/*
- * Copyright (c) 1988-1997 Sam Leffler
- * Copyright (c) 1991-1997 Silicon Graphics, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software and
- * its documentation for any purpose is hereby granted without fee, provided
- * that (i) the above copyright notices and this permission notice appear in
- * all copies of the software and related documentation, and (ii) the names of
- * Sam Leffler and Silicon Graphics may not be used in any advertising or
- * publicity relating to the software without the specific, prior written
- * permission of Sam Leffler and Silicon Graphics.
- *
- * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
- * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
- *
- * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
- * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
- * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
- * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
- * OF THIS SOFTWARE.
- */
-
-/*
- * TIFF Library.
- *
- * Directory Write Support Routines.
- */
-#include "tiffiop.h"
-
-#if HAVE_IEEEFP
-#define TIFFCvtNativeToIEEEFloat(tif, n, fp)
-#define TIFFCvtNativeToIEEEDouble(tif, n, dp)
-#else
-extern void TIFFCvtNativeToIEEEFloat(TIFF*, uint32, float*);
-extern void TIFFCvtNativeToIEEEDouble(TIFF*, uint32, double*);
-#endif
-
-static int TIFFWriteNormalTag(TIFF*, TIFFDirEntry*, const TIFFFieldInfo*);
-static void TIFFSetupShortLong(TIFF*, ttag_t, TIFFDirEntry*, uint32);
-static void TIFFSetupShort(TIFF*, ttag_t, TIFFDirEntry*, uint16);
-static int TIFFSetupShortPair(TIFF*, ttag_t, TIFFDirEntry*);
-static int TIFFWritePerSampleShorts(TIFF*, ttag_t, TIFFDirEntry*);
-static int TIFFWritePerSampleAnys(TIFF*, TIFFDataType, ttag_t, TIFFDirEntry*);
-static int TIFFWriteShortTable(TIFF*, ttag_t, TIFFDirEntry*, uint32, uint16**);
-static int TIFFWriteShortArray(TIFF*, TIFFDirEntry*, uint16*);
-static int TIFFWriteLongArray(TIFF *, TIFFDirEntry*, uint32*);
-static int TIFFWriteRationalArray(TIFF *, TIFFDirEntry*, float*);
-static int TIFFWriteFloatArray(TIFF *, TIFFDirEntry*, float*);
-static int TIFFWriteDoubleArray(TIFF *, TIFFDirEntry*, double*);
-static int TIFFWriteByteArray(TIFF*, TIFFDirEntry*, char*);
-static int TIFFWriteAnyArray(TIFF*,
- TIFFDataType, ttag_t, TIFFDirEntry*, uint32, double*);
-static int TIFFWriteTransferFunction(TIFF*, TIFFDirEntry*);
-static int TIFFWriteInkNames(TIFF*, TIFFDirEntry*);
-static int TIFFWriteData(TIFF*, TIFFDirEntry*, char*);
-static int TIFFLinkDirectory(TIFF*);
-
-#define WriteRationalPair(type, tag1, v1, tag2, v2) { \
- TIFFWriteRational((tif), (type), (tag1), (dir), (v1)) \
- TIFFWriteRational((tif), (type), (tag2), (dir)+1, (v2)) \
- (dir)++; \
-}
-#define TIFFWriteRational(tif, type, tag, dir, v) \
- (dir)->tdir_tag = (tag); \
- (dir)->tdir_type = (type); \
- (dir)->tdir_count = 1; \
- if (!TIFFWriteRationalArray((tif), (dir), &(v))) \
- goto bad;
-
-/*
- * 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.
- */
-static int
-_TIFFWriteDirectory(TIFF* tif, int done)
-{
- uint16 dircount;
- toff_t diroff;
- ttag_t tag;
- uint32 nfields;
- tsize_t dirsize;
- char* data;
- TIFFDirEntry* dir;
- TIFFDirectory* td;
- unsigned long b, fields[FIELD_SETLONGS];
- int fi, nfi;
-
- if (tif->tif_mode == O_RDONLY)
- return (1);
- /*
- * Clear write state so that subsequent images with
- * different characteristics get the right buffers
- * setup for them.
- */
- if (done)
- {
- if (tif->tif_flags & TIFF_POSTENCODE) {
- tif->tif_flags &= ~TIFF_POSTENCODE;
- if (!(*tif->tif_postencode)(tif)) {
- TIFFError(tif->tif_name,
- "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.
- */
- if (tif->tif_rawcc > 0 && !TIFFFlushData1(tif)) {
- TIFFError(tif->tif_name,
- "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_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP);
- }
-
- td = &tif->tif_dir;
- /*
- * Size the directory so that we can calculate
- * offsets for the data items that aren't kept
- * in-place in each field.
- */
- nfields = 0;
- for (b = 0; b <= FIELD_LAST; b++)
- if (TIFFFieldSet(tif, b) && b != FIELD_CUSTOM)
- nfields += (b < FIELD_SUBFILETYPE ? 2 : 1);
- nfields += td->td_customValueCount;
- dirsize = nfields * sizeof (TIFFDirEntry);
- data = (char*) _TIFFmalloc(dirsize);
- if (data == NULL) {
- TIFFError(tif->tif_name,
- "Cannot write directory, out of space");
- return (0);
- }
- /*
- * Directory hasn't been placed yet, put
- * it at the end of the file and link it
- * into the existing directory structure.
- */
- if (tif->tif_diroff == 0 && !TIFFLinkDirectory(tif))
- goto bad;
- tif->tif_dataoff = (toff_t)(
- tif->tif_diroff + sizeof (uint16) + dirsize + sizeof (toff_t));
- if (tif->tif_dataoff & 1)
- tif->tif_dataoff++;
- (void) TIFFSeekFile(tif, tif->tif_dataoff, SEEK_SET);
- tif->tif_curdir++;
- dir = (TIFFDirEntry*) data;
- /*
- * Setup external form of directory
- * entries and write data items.
- */
- _TIFFmemcpy(fields, td->td_fieldsset, sizeof (fields));
- /*
- * Write out ExtraSamples tag only if
- * extra samples are present in the data.
- */
- if (FieldSet(fields, FIELD_EXTRASAMPLES) && !td->td_extrasamples) {
- ResetFieldBit(fields, FIELD_EXTRASAMPLES);
- nfields--;
- dirsize -= sizeof (TIFFDirEntry);
- } /*XXX*/
- for (fi = 0, nfi = tif->tif_nfields; nfi > 0; nfi--, fi++) {
- const TIFFFieldInfo* fip = tif->tif_fieldinfo[fi];
-
- /*
- ** For custom fields, we test to see if the custom field
- ** is set or not. For normal fields, we just use the
- ** FieldSet test.
- */
- if( fip->field_bit == FIELD_CUSTOM )
- {
- int ci, is_set = FALSE;
-
- for( ci = 0; ci < td->td_customValueCount; ci++ )
- is_set |= (td->td_customValues[ci].info == fip);
-
- if( !is_set )
- continue;
- }
- else if (!FieldSet(fields, fip->field_bit))
- continue;
-
-
- /*
- ** Handle other fields.
- */
- switch (fip->field_bit)
- {
- case FIELD_STRIPOFFSETS:
- /*
- * We use one field bit for both strip and tile
-
- * offsets, and so must be careful in selecting
- * the appropriate field descriptor (so that tags
- * are written in sorted order).
- */
- tag = isTiled(tif) ?
- TIFFTAG_TILEOFFSETS : TIFFTAG_STRIPOFFSETS;
- if (tag != fip->field_tag)
- continue;
-
- dir->tdir_tag = (uint16) tag;
- dir->tdir_type = (uint16) TIFF_LONG;
- dir->tdir_count = (uint32) td->td_nstrips;
- if (!TIFFWriteLongArray(tif, dir, td->td_stripoffset))
- goto bad;
- break;
- case FIELD_STRIPBYTECOUNTS:
- /*
- * We use one field bit for both strip and tile
- * byte counts, and so must be careful in selecting
- * the appropriate field descriptor (so that tags
- * are written in sorted order).
- */
- tag = isTiled(tif) ?
- TIFFTAG_TILEBYTECOUNTS : TIFFTAG_STRIPBYTECOUNTS;
- if (tag != fip->field_tag)
- continue;
-
- dir->tdir_tag = (uint16) tag;
- dir->tdir_type = (uint16) TIFF_LONG;
- dir->tdir_count = (uint32) td->td_nstrips;
- if (!TIFFWriteLongArray(tif, dir,
- td->td_stripbytecount))
- goto bad;
- break;
- case FIELD_ROWSPERSTRIP:
- TIFFSetupShortLong(tif, TIFFTAG_ROWSPERSTRIP,
- dir, td->td_rowsperstrip);
- break;
- case FIELD_COLORMAP:
- if (!TIFFWriteShortTable(tif, TIFFTAG_COLORMAP, dir,
- 3, td->td_colormap))
- goto bad;
- break;
- case FIELD_IMAGEDIMENSIONS:
- TIFFSetupShortLong(tif, TIFFTAG_IMAGEWIDTH,
- dir++, td->td_imagewidth);
- TIFFSetupShortLong(tif, TIFFTAG_IMAGELENGTH,
- dir, td->td_imagelength);
- break;
- case FIELD_TILEDIMENSIONS:
- TIFFSetupShortLong(tif, TIFFTAG_TILEWIDTH,
- dir++, td->td_tilewidth);
- TIFFSetupShortLong(tif, TIFFTAG_TILELENGTH,
- dir, td->td_tilelength);
- break;
- case FIELD_COMPRESSION:
- TIFFSetupShort(tif, TIFFTAG_COMPRESSION,
- dir, td->td_compression);
- break;
- case FIELD_PHOTOMETRIC:
- TIFFSetupShort(tif, TIFFTAG_PHOTOMETRIC,
- dir, td->td_photometric);
- break;
- case FIELD_POSITION:
- WriteRationalPair(TIFF_RATIONAL,
- TIFFTAG_XPOSITION, td->td_xposition,
- TIFFTAG_YPOSITION, td->td_yposition);
- break;
- case FIELD_RESOLUTION:
- WriteRationalPair(TIFF_RATIONAL,
- TIFFTAG_XRESOLUTION, td->td_xresolution,
- TIFFTAG_YRESOLUTION, td->td_yresolution);
- break;
- case FIELD_BITSPERSAMPLE:
- case FIELD_MINSAMPLEVALUE:
- case FIELD_MAXSAMPLEVALUE:
- case FIELD_SAMPLEFORMAT:
- if (!TIFFWritePerSampleShorts(tif, fip->field_tag, dir))
- goto bad;
- break;
- case FIELD_SMINSAMPLEVALUE:
- case FIELD_SMAXSAMPLEVALUE:
- if (!TIFFWritePerSampleAnys(tif,
- _TIFFSampleToTagType(tif), fip->field_tag, dir))
- goto bad;
- break;
- case FIELD_PAGENUMBER:
- case FIELD_HALFTONEHINTS:
- case FIELD_YCBCRSUBSAMPLING:
- case FIELD_DOTRANGE:
- if (!TIFFSetupShortPair(tif, fip->field_tag, dir))
- goto bad;
- break;
- case FIELD_INKNAMES:
- if (!TIFFWriteInkNames(tif, dir))
- goto bad;
- break;
- case FIELD_TRANSFERFUNCTION:
- if (!TIFFWriteTransferFunction(tif, dir))
- goto bad;
- break;
- case FIELD_SUBIFD:
- /*
- * XXX: Always write this field using LONG type
- * for backward compatibility.
- */
- dir->tdir_tag = (uint16) fip->field_tag;
- dir->tdir_type = (uint16) TIFF_LONG;
- dir->tdir_count = (uint32) td->td_nsubifd;
- if (!TIFFWriteLongArray(tif, dir, td->td_subifd))
- goto bad;
- /*
- * 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.
- */
- if (dir->tdir_count > 0) {
- tif->tif_flags |= TIFF_INSUBIFD;
- tif->tif_nsubifd = (uint16) dir->tdir_count;
- if (dir->tdir_count > 1)
- tif->tif_subifdoff = dir->tdir_offset;
- else
- tif->tif_subifdoff = (uint32)(
- tif->tif_diroff
- + sizeof (uint16)
- + ((char*)&dir->tdir_offset-data));
- }
- break;
- default:
- if (!TIFFWriteNormalTag(tif, dir, fip))
- goto bad;
- break;
- }
- dir++;
-
- if( fip->field_bit != FIELD_CUSTOM )
- ResetFieldBit(fields, fip->field_bit);
- }
-
- /*
- * Write directory.
- */
- dircount = (uint16) nfields;
- diroff = (uint32) tif->tif_nextdiroff;
- if (tif->tif_flags & TIFF_SWAB) {
- /*
- * The file's byte order is opposite to the
- * native machine architecture. We overwrite
- * the directory information with impunity
- * because it'll be released below after we
- * write it to the file. Note that all the
- * other tag construction routines assume that
- * we do this byte-swapping; i.e. they only
- * byte-swap indirect data.
- */
- for (dir = (TIFFDirEntry*) data; dircount; dir++, dircount--) {
- TIFFSwabArrayOfShort(&dir->tdir_tag, 2);
- TIFFSwabArrayOfLong(&dir->tdir_count, 2);
- }
- dircount = (uint16) nfields;
- TIFFSwabShort(&dircount);
- TIFFSwabLong(&diroff);
- }
- (void) TIFFSeekFile(tif, tif->tif_diroff, SEEK_SET);
- if (!WriteOK(tif, &dircount, sizeof (dircount))) {
- TIFFError(tif->tif_name, "Error writing directory count");
- goto bad;
- }
- if (!WriteOK(tif, data, dirsize)) {
- TIFFError(tif->tif_name, "Error writing directory contents");
- goto bad;
- }
- if (!WriteOK(tif, &diroff, sizeof (diroff))) {
- TIFFError(tif->tif_name, "Error writing directory link");
- goto bad;
- }
- if (done) {
- TIFFFreeDirectory(tif);
- tif->tif_flags &= ~TIFF_DIRTYDIRECT;
- (*tif->tif_cleanup)(tif);
-
- /*
- * Reset directory-related state for subsequent
- * directories.
- */
- TIFFCreateDirectory(tif);
- }
- _TIFFfree(data);
- return (1);
-bad:
- _TIFFfree(data);
- return (0);
-}
-#undef WriteRationalPair
-
-int
-TIFFWriteDirectory(TIFF* tif)
-{
- return _TIFFWriteDirectory(tif, TRUE);
-}
-
-/*
- * 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 == NULL)
- (void) TIFFSetupStrips(tif);
- rc = _TIFFWriteDirectory(tif, FALSE);
- (void) TIFFSetWriteOffset(tif, TIFFSeekFile(tif, 0, SEEK_END));
- return rc;
-}
-
-/*
- * Process tags that are not special cased.
- */
-static int
-TIFFWriteNormalTag(TIFF* tif, TIFFDirEntry* dir, const TIFFFieldInfo* fip)
-{
- uint16 wc = (uint16) fip->field_writecount;
- uint32 wc2;
-
- dir->tdir_tag = (uint16) fip->field_tag;
- dir->tdir_type = (uint16) fip->field_type;
- dir->tdir_count = wc;
-
- switch (fip->field_type) {
- case TIFF_SHORT:
- case TIFF_SSHORT:
- if (fip->field_passcount) {
- uint16* wp;
- if (wc == (uint16) TIFF_VARIABLE2) {
- TIFFGetField(tif, fip->field_tag, &wc2, &wp);
- dir->tdir_count = wc2;
- } else { /* Assume TIFF_VARIABLE */
- TIFFGetField(tif, fip->field_tag, &wc, &wp);
- dir->tdir_count = wc;
- }
- if (!TIFFWriteShortArray(tif, dir, wp))
- return 0;
- } else {
- if (wc == 1) {
- uint16 sv;
- TIFFGetField(tif, fip->field_tag, &sv);
- dir->tdir_offset =
- TIFFInsertData(tif, dir->tdir_type, sv);
- } else {
- uint16* wp;
- TIFFGetField(tif, fip->field_tag, &wp);
- if (!TIFFWriteShortArray(tif, dir, wp))
- return 0;
- }
- }
- break;
- case TIFF_LONG:
- case TIFF_SLONG:
- case TIFF_IFD:
- if (fip->field_passcount) {
- uint32* lp;
- if (wc == (uint16) TIFF_VARIABLE2) {
- TIFFGetField(tif, fip->field_tag, &wc2, &lp);
- dir->tdir_count = wc2;
- } else { /* Assume TIFF_VARIABLE */
- TIFFGetField(tif, fip->field_tag, &wc, &lp);
- dir->tdir_count = wc;
- }
- if (!TIFFWriteLongArray(tif, dir, lp))
- return 0;
- } else {
- if (wc == 1) {
- /* XXX handle LONG->SHORT conversion */
- TIFFGetField(tif, fip->field_tag,
- &dir->tdir_offset);
- } else {
- uint32* lp;
- TIFFGetField(tif, fip->field_tag, &lp);
- if (!TIFFWriteLongArray(tif, dir, lp))
- return 0;
- }
- }
- break;
- case TIFF_RATIONAL:
- case TIFF_SRATIONAL:
- if (fip->field_passcount) {
- float* fp;
- if (wc == (uint16) TIFF_VARIABLE2) {
- TIFFGetField(tif, fip->field_tag, &wc2, &fp);
- dir->tdir_count = wc2;
- } else { /* Assume TIFF_VARIABLE */
- TIFFGetField(tif, fip->field_tag, &wc, &fp);
- dir->tdir_count = wc;
- }
- if (!TIFFWriteRationalArray(tif, dir, fp))
- return 0;
- } else {
- if (wc == 1) {
- float fv;
- TIFFGetField(tif, fip->field_tag, &fv);
- if (!TIFFWriteRationalArray(tif, dir, &fv))
- return 0;
- } else {
- float* fp;
- TIFFGetField(tif, fip->field_tag, &fp);
- if (!TIFFWriteRationalArray(tif, dir, fp))
- return 0;
- }
- }
- break;
- case TIFF_FLOAT:
- if (fip->field_passcount) {
- float* fp;
- if (wc == (uint16) TIFF_VARIABLE2) {
- TIFFGetField(tif, fip->field_tag, &wc2, &fp);
- dir->tdir_count = wc2;
- } else { /* Assume TIFF_VARIABLE */
- TIFFGetField(tif, fip->field_tag, &wc, &fp);
- dir->tdir_count = wc;
- }
- if (!TIFFWriteFloatArray(tif, dir, fp))
- return 0;
- } else {
- if (wc == 1) {
- float fv;
- TIFFGetField(tif, fip->field_tag, &fv);
- if (!TIFFWriteFloatArray(tif, dir, &fv))
- return 0;
- } else {
- float* fp;
- TIFFGetField(tif, fip->field_tag, &fp);
- if (!TIFFWriteFloatArray(tif, dir, fp))
- return 0;
- }
- }
- break;
- case TIFF_DOUBLE:
- if (fip->field_passcount) {
- double* dp;
- if (wc == (uint16) TIFF_VARIABLE2) {
- TIFFGetField(tif, fip->field_tag, &wc2, &dp);
- dir->tdir_count = wc2;
- } else { /* Assume TIFF_VARIABLE */
- TIFFGetField(tif, fip->field_tag, &wc, &dp);
- dir->tdir_count = wc;
- }
- if (!TIFFWriteDoubleArray(tif, dir, dp))
- return 0;
- } else {
- if (wc == 1) {
- double dv;
- TIFFGetField(tif, fip->field_tag, &dv);
- if (!TIFFWriteDoubleArray(tif, dir, &dv))
- return 0;
- } else {
- double* dp;
- TIFFGetField(tif, fip->field_tag, &dp);
- if (!TIFFWriteDoubleArray(tif, dir, dp))
- return 0;
- }
- }
- break;
- case TIFF_ASCII:
- {
- char* cp;
- if (fip->field_passcount)
- TIFFGetField(tif, fip->field_tag, &wc, &cp);
- else
- TIFFGetField(tif, fip->field_tag, &cp);
-
- dir->tdir_count = (uint32) (strlen(cp) + 1);
- if (!TIFFWriteByteArray(tif, dir, cp))
- return (0);
- }
- break;
-
- case TIFF_BYTE:
- case TIFF_SBYTE:
- if (fip->field_passcount) {
- char* cp;
- if (wc == (uint16) TIFF_VARIABLE2) {
- TIFFGetField(tif, fip->field_tag, &wc2, &cp);
- dir->tdir_count = wc2;
- } else { /* Assume TIFF_VARIABLE */
- TIFFGetField(tif, fip->field_tag, &wc, &cp);
- dir->tdir_count = wc;
- }
- if (!TIFFWriteByteArray(tif, dir, cp))
- return 0;
- } else {
- if (wc == 1) {
- char cv;
- TIFFGetField(tif, fip->field_tag, &cv);
- if (!TIFFWriteByteArray(tif, dir, &cv))
- return 0;
- } else {
- char* cp;
- TIFFGetField(tif, fip->field_tag, &cp);
- if (!TIFFWriteByteArray(tif, dir, cp))
- return 0;
- }
- }
- break;
-
- case TIFF_UNDEFINED:
- { char* cp;
- if (wc == (unsigned short) TIFF_VARIABLE) {
- TIFFGetField(tif, fip->field_tag, &wc, &cp);
- dir->tdir_count = wc;
- } else if (wc == (unsigned short) TIFF_VARIABLE2) {
- TIFFGetField(tif, fip->field_tag, &wc2, &cp);
- dir->tdir_count = wc2;
- } else
- TIFFGetField(tif, fip->field_tag, &cp);
- if (!TIFFWriteByteArray(tif, dir, cp))
- return (0);
- }
- break;
-
- case TIFF_NOTYPE:
- break;
- }
- return (1);
-}
-
-/*
- * Setup a directory entry with either a SHORT
- * or LONG type according to the value.
- */
-static void
-TIFFSetupShortLong(TIFF* tif, ttag_t tag, TIFFDirEntry* dir, uint32 v)
-{
- dir->tdir_tag = (uint16) tag;
- dir->tdir_count = 1;
- if (v > 0xffffL) {
- dir->tdir_type = (short) TIFF_LONG;
- dir->tdir_offset = v;
- } else {
- dir->tdir_type = (short) TIFF_SHORT;
- dir->tdir_offset = TIFFInsertData(tif, (int) TIFF_SHORT, v);
- }
-}
-
-/*
- * Setup a SHORT directory entry
- */
-static void
-TIFFSetupShort(TIFF* tif, ttag_t tag, TIFFDirEntry* dir, uint16 v)
-{
- dir->tdir_tag = (uint16) tag;
- dir->tdir_count = 1;
- dir->tdir_type = (short) TIFF_SHORT;
- dir->tdir_offset = TIFFInsertData(tif, (int) TIFF_SHORT, v);
-}
-#undef MakeShortDirent
-
-#define NITEMS(x) (sizeof (x) / sizeof (x[0]))
-/*
- * Setup a directory entry that references a
- * samples/pixel array of SHORT values and
- * (potentially) write the associated indirect
- * values.
- */
-static int
-TIFFWritePerSampleShorts(TIFF* tif, ttag_t tag, TIFFDirEntry* dir)
-{
- uint16 buf[10], v;
- uint16* w = buf;
- int i, status, samples = tif->tif_dir.td_samplesperpixel;
-
- if (samples > NITEMS(buf)) {
- w = (uint16*) _TIFFmalloc(samples * sizeof (uint16));
- if (w == NULL) {
- TIFFError(tif->tif_name,
- "No space to write per-sample shorts");
- return (0);
- }
- }
- TIFFGetField(tif, tag, &v);
- for (i = 0; i < samples; i++)
- w[i] = v;
-
- dir->tdir_tag = (uint16) tag;
- dir->tdir_type = (uint16) TIFF_SHORT;
- dir->tdir_count = samples;
- status = TIFFWriteShortArray(tif, dir, w);
- if (w != buf)
- _TIFFfree((char*) w);
- return (status);
-}
-
-/*
- * Setup a directory entry that references a samples/pixel array of ``type''
- * values and (potentially) write the associated indirect values. The source
- * data from TIFFGetField() for the specified tag must be returned as double.
- */
-static int
-TIFFWritePerSampleAnys(TIFF* tif,
- TIFFDataType type, ttag_t tag, TIFFDirEntry* dir)
-{
- double buf[10], v;
- double* w = buf;
- int i, status;
- int samples = (int) tif->tif_dir.td_samplesperpixel;
-
- if (samples > NITEMS(buf)) {
- w = (double*) _TIFFmalloc(samples * sizeof (double));
- if (w == NULL) {
- TIFFError(tif->tif_name,
- "No space to write per-sample values");
- return (0);
- }
- }
- TIFFGetField(tif, tag, &v);
- for (i = 0; i < samples; i++)
- w[i] = v;
- status = TIFFWriteAnyArray(tif, type, tag, dir, samples, w);
- if (w != buf)
- _TIFFfree(w);
- return (status);
-}
-#undef NITEMS
-
-/*
- * Setup a pair of shorts that are returned by
- * value, rather than as a reference to an array.
- */
-static int
-TIFFSetupShortPair(TIFF* tif, ttag_t tag, TIFFDirEntry* dir)
-{
- uint16 v[2];
-
- TIFFGetField(tif, tag, &v[0], &v[1]);
-
- dir->tdir_tag = (uint16) tag;
- dir->tdir_type = (uint16) TIFF_SHORT;
- dir->tdir_count = 2;
- return (TIFFWriteShortArray(tif, dir, v));
-}
-
-/*
- * Setup a directory entry for an NxM table of shorts,
- * where M is known to be 2**bitspersample, and write
- * the associated indirect data.
- */
-static int
-TIFFWriteShortTable(TIFF* tif,
- ttag_t tag, TIFFDirEntry* dir, uint32 n, uint16** table)
-{
- uint32 i, off;
-
- dir->tdir_tag = (uint16) tag;
- dir->tdir_type = (short) TIFF_SHORT;
- /* XXX -- yech, fool TIFFWriteData */
- dir->tdir_count = (uint32) (1L<<tif->tif_dir.td_bitspersample);
- off = tif->tif_dataoff;
- for (i = 0; i < n; i++)
- if (!TIFFWriteData(tif, dir, (char *)table[i]))
- return (0);
- dir->tdir_count *= n;
- dir->tdir_offset = off;
- return (1);
-}
-
-/*
- * Write/copy data associated with an ASCII or opaque tag value.
- */
-static int
-TIFFWriteByteArray(TIFF* tif, TIFFDirEntry* dir, char* cp)
-{
- if (dir->tdir_count > 4) {
- if (!TIFFWriteData(tif, dir, cp))
- return (0);
- } else
- _TIFFmemcpy(&dir->tdir_offset, cp, dir->tdir_count);
- return (1);
-}
-
-/*
- * Setup a directory entry of an array of SHORT
- * or SSHORT and write the associated indirect values.
- */
-static int
-TIFFWriteShortArray(TIFF* tif, TIFFDirEntry* dir, uint16* v)
-{
- if (dir->tdir_count <= 2) {
- if (tif->tif_header.tiff_magic == TIFF_BIGENDIAN) {
- dir->tdir_offset = (uint32) ((long) v[0] << 16);
- if (dir->tdir_count == 2)
- dir->tdir_offset |= v[1] & 0xffff;
- } else {
- dir->tdir_offset = v[0] & 0xffff;
- if (dir->tdir_count == 2)
- dir->tdir_offset |= (long) v[1] << 16;
- }
- return (1);
- } else
- return (TIFFWriteData(tif, dir, (char*) v));
-}
-
-/*
- * Setup a directory entry of an array of LONG
- * or SLONG and write the associated indirect values.
- */
-static int
-TIFFWriteLongArray(TIFF* tif, TIFFDirEntry* dir, uint32* v)
-{
- if (dir->tdir_count == 1) {
- dir->tdir_offset = v[0];
- return (1);
- } else
- return (TIFFWriteData(tif, dir, (char*) v));
-}
-
-/*
- * Setup a directory entry of an array of RATIONAL
- * or SRATIONAL and write the associated indirect values.
- */
-static int
-TIFFWriteRationalArray(TIFF* tif, TIFFDirEntry* dir, float* v)
-{
- uint32 i;
- uint32* t;
- int status;
-
- t = (uint32*) _TIFFmalloc(2 * dir->tdir_count * sizeof (uint32));
- if (t == NULL) {
- TIFFError(tif->tif_name,
- "No space to write RATIONAL array");
- return (0);
- }
- for (i = 0; i < dir->tdir_count; i++) {
- float fv = v[i];
- int sign = 1;
- uint32 den;
-
- if (fv < 0) {
- if (dir->tdir_type == TIFF_RATIONAL) {
- TIFFWarning(tif->tif_name,
- "\"%s\": Information lost writing value (%g) as (unsigned) RATIONAL",
- _TIFFFieldWithTag(tif,dir->tdir_tag)->field_name,
- fv);
- fv = 0;
- } else
- fv = -fv, sign = -1;
- }
- den = 1L;
- if (fv > 0) {
- while (fv < 1L<<(31-3) && den < 1L<<(31-3))
- fv *= 1<<3, den *= 1L<<3;
- }
- t[2*i+0] = (uint32) (sign * (fv + 0.5));
- t[2*i+1] = den;
- }
- status = TIFFWriteData(tif, dir, (char *)t);
- _TIFFfree((char*) t);
- return (status);
-}
-
-static int
-TIFFWriteFloatArray(TIFF* tif, TIFFDirEntry* dir, float* v)
-{
- TIFFCvtNativeToIEEEFloat(tif, dir->tdir_count, v);
- if (dir->tdir_count == 1) {
- dir->tdir_offset = *(uint32*) &v[0];
- return (1);
- } else
- return (TIFFWriteData(tif, dir, (char*) v));
-}
-
-static int
-TIFFWriteDoubleArray(TIFF* tif, TIFFDirEntry* dir, double* v)
-{
- TIFFCvtNativeToIEEEDouble(tif, n, v);
- return (TIFFWriteData(tif, dir, (char*) v));
-}
-
-/*
- * Write an array of ``type'' values for a specified tag (i.e. this is a tag
- * which is allowed to have different types, e.g. SMaxSampleType).
- * Internally the data values are represented as double since a double can
- * hold any of the TIFF tag types (yes, this should really be an abstract
- * type tany_t for portability). The data is converted into the specified
- * type in a temporary buffer and then handed off to the appropriate array
- * writer.
- */
-static int
-TIFFWriteAnyArray(TIFF* tif,
- TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, double* v)
-{
- char buf[10 * sizeof(double)];
- char* w = buf;
- int i, status = 0;
-
- if (n * TIFFDataWidth(type) > sizeof buf) {
- w = (char*) _TIFFmalloc(n * TIFFDataWidth(type));
- if (w == NULL) {
- TIFFError(tif->tif_name,
- "No space to write array");
- return (0);
- }
- }
-
- dir->tdir_tag = (uint16) tag;
- dir->tdir_type = (uint16) type;
- dir->tdir_count = n;
-
- switch (type) {
- case TIFF_BYTE:
- {
- uint8* bp = (uint8*) w;
- for (i = 0; i < (int) n; i++)
- bp[i] = (uint8) v[i];
- if (!TIFFWriteByteArray(tif, dir, (char*) bp))
- goto out;
- }
- break;
- case TIFF_SBYTE:
- {
- int8* bp = (int8*) w;
- for (i = 0; i < (int) n; i++)
- bp[i] = (int8) v[i];
- if (!TIFFWriteByteArray(tif, dir, (char*) bp))
- goto out;
- }
- break;
- case TIFF_SHORT:
- {
- uint16* bp = (uint16*) w;
- for (i = 0; i < (int) n; i++)
- bp[i] = (uint16) v[i];
- if (!TIFFWriteShortArray(tif, dir, (uint16*)bp))
- goto out;
- }
- break;
- case TIFF_SSHORT:
- {
- int16* bp = (int16*) w;
- for (i = 0; i < (int) n; i++)
- bp[i] = (int16) v[i];
- if (!TIFFWriteShortArray(tif, dir, (uint16*)bp))
- goto out;
- }
- break;
- case TIFF_LONG:
- {
- uint32* bp = (uint32*) w;
- for (i = 0; i < (int) n; i++)
- bp[i] = (uint32) v[i];
- if (!TIFFWriteLongArray(tif, dir, bp))
- goto out;
- }
- break;
- case TIFF_SLONG:
- {
- int32* bp = (int32*) w;
- for (i = 0; i < (int) n; i++)
- bp[i] = (int32) v[i];
- if (!TIFFWriteLongArray(tif, dir, (uint32*) bp))
- goto out;
- }
- break;
- case TIFF_FLOAT:
- {
- float* bp = (float*) w;
- for (i = 0; i < (int) n; i++)
- bp[i] = (float) v[i];
- if (!TIFFWriteFloatArray(tif, dir, bp))
- goto out;
- }
- break;
- case TIFF_DOUBLE:
- return (TIFFWriteDoubleArray(tif, dir, v));
- default:
- /* TIFF_NOTYPE */
- /* TIFF_ASCII */
- /* TIFF_UNDEFINED */
- /* TIFF_RATIONAL */
- /* TIFF_SRATIONAL */
- goto out;
- }
- status = 1;
- out:
- if (w != buf)
- _TIFFfree(w);
- return (status);
-}
-
-static int
-TIFFWriteTransferFunction(TIFF* tif, TIFFDirEntry* dir)
-{
- TIFFDirectory* td = &tif->tif_dir;
- tsize_t n = (1L<<td->td_bitspersample) * sizeof (uint16);
- uint16** tf = td->td_transferfunction;
- int ncols;
-
- /*
- * 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.
- */
- switch (td->td_samplesperpixel - td->td_extrasamples) {
- default: if (_TIFFmemcmp(tf[0], tf[2], n)) { ncols = 3; break; }
- case 2: if (_TIFFmemcmp(tf[0], tf[1], n)) { ncols = 3; break; }
- case 1: case 0: ncols = 1;
- }
- return (TIFFWriteShortTable(tif,
- TIFFTAG_TRANSFERFUNCTION, dir, ncols, tf));
-}
-
-static int
-TIFFWriteInkNames(TIFF* tif, TIFFDirEntry* dir)
-{
- TIFFDirectory* td = &tif->tif_dir;
-
- dir->tdir_tag = TIFFTAG_INKNAMES;
- dir->tdir_type = (short) TIFF_ASCII;
- dir->tdir_count = td->td_inknameslen;
- return (TIFFWriteByteArray(tif, dir, td->td_inknames));
-}
-
-/*
- * Write a contiguous directory item.
- */
-static int
-TIFFWriteData(TIFF* tif, TIFFDirEntry* dir, char* cp)
-{
- tsize_t cc;
-
- if (tif->tif_flags & TIFF_SWAB) {
- switch (dir->tdir_type) {
- case TIFF_SHORT:
- case TIFF_SSHORT:
- TIFFSwabArrayOfShort((uint16*) cp, dir->tdir_count);
- break;
- case TIFF_LONG:
- case TIFF_SLONG:
- case TIFF_FLOAT:
- TIFFSwabArrayOfLong((uint32*) cp, dir->tdir_count);
- break;
- case TIFF_RATIONAL:
- case TIFF_SRATIONAL:
- TIFFSwabArrayOfLong((uint32*) cp, 2*dir->tdir_count);
- break;
- case TIFF_DOUBLE:
- TIFFSwabArrayOfDouble((double*) cp, dir->tdir_count);
- break;
- }
- }
- dir->tdir_offset = tif->tif_dataoff;
- cc = dir->tdir_count * TIFFDataWidth((TIFFDataType) dir->tdir_type);
- if (SeekOK(tif, dir->tdir_offset) &&
- WriteOK(tif, cp, cc)) {
- tif->tif_dataoff += (cc + 1) & ~1;
- return (1);
- }
- TIFFError(tif->tif_name, "Error writing data for field \"%s\"",
- _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name);
- return (0);
-}
-
-/*
- * 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.
- */
-
- /* Is it the first directory in the file? */
- if (tif->tif_header.tiff_diroff == tif->tif_diroff)
- {
- tif->tif_header.tiff_diroff = 0;
- tif->tif_diroff = 0;
-
- TIFFSeekFile(tif, (toff_t)(TIFF_MAGIC_SIZE+TIFF_VERSION_SIZE),
- SEEK_SET);
- if (!WriteOK(tif, &(tif->tif_header.tiff_diroff),
- sizeof (tif->tif_diroff)))
- {
- TIFFError(tif->tif_name, "Error updating TIFF header");
- return (0);
- }
- }
- else
- {
- toff_t nextdir, off;
-
- nextdir = tif->tif_header.tiff_diroff;
- do {
- uint16 dircount;
-
- if (!SeekOK(tif, nextdir) ||
- !ReadOK(tif, &dircount, sizeof (dircount))) {
- TIFFError(module, "Error fetching directory count");
- return (0);
- }
- if (tif->tif_flags & TIFF_SWAB)
- TIFFSwabShort(&dircount);
- (void) TIFFSeekFile(tif,
- dircount * sizeof (TIFFDirEntry), SEEK_CUR);
- if (!ReadOK(tif, &nextdir, sizeof (nextdir))) {
- TIFFError(module, "Error fetching directory link");
- return (0);
- }
- if (tif->tif_flags & TIFF_SWAB)
- TIFFSwabLong(&nextdir);
- } while (nextdir != tif->tif_diroff && nextdir != 0);
- off = TIFFSeekFile(tif, 0, SEEK_CUR); /* get current offset */
- (void) TIFFSeekFile(tif, off - (toff_t)sizeof(nextdir), SEEK_SET);
- tif->tif_diroff = 0;
- if (!WriteOK(tif, &(tif->tif_diroff), sizeof (nextdir))) {
- TIFFError(module, "Error writing directory link");
- return (0);
- }
- }
-
- /*
- ** Now use TIFFWriteDirectory() normally.
- */
-
- return TIFFWriteDirectory( tif );
-}
-
-
-/*
- * Link the current directory into the
- * directory chain for the file.
- */
-static int
-TIFFLinkDirectory(TIFF* tif)
-{
- static const char module[] = "TIFFLinkDirectory";
- toff_t nextdir;
- toff_t diroff, off;
-
- tif->tif_diroff = (TIFFSeekFile(tif, (toff_t) 0, SEEK_END)+1) &~ 1;
- diroff = tif->tif_diroff;
- if (tif->tif_flags & TIFF_SWAB)
- TIFFSwabLong(&diroff);
-
- /*
- * Handle SubIFDs
- */
- if (tif->tif_flags & TIFF_INSUBIFD) {
- (void) TIFFSeekFile(tif, tif->tif_subifdoff, SEEK_SET);
- if (!WriteOK(tif, &diroff, sizeof (diroff))) {
- TIFFError(module,
- "%s: Error writing SubIFD directory link",
- tif->tif_name);
- 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 += sizeof (diroff);
- else
- tif->tif_flags &= ~TIFF_INSUBIFD;
- return (1);
- }
-
- if (tif->tif_header.tiff_diroff == 0) {
- /*
- * First directory, overwrite offset in header.
- */
- tif->tif_header.tiff_diroff = tif->tif_diroff;
- (void) TIFFSeekFile(tif,
- (toff_t)(TIFF_MAGIC_SIZE+TIFF_VERSION_SIZE),
- SEEK_SET);
- if (!WriteOK(tif, &diroff, sizeof (diroff))) {
- TIFFError(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.tiff_diroff;
- do {
- uint16 dircount;
-
- if (!SeekOK(tif, nextdir) ||
- !ReadOK(tif, &dircount, sizeof (dircount))) {
- TIFFError(module, "Error fetching directory count");
- return (0);
- }
- if (tif->tif_flags & TIFF_SWAB)
- TIFFSwabShort(&dircount);
- (void) TIFFSeekFile(tif,
- dircount * sizeof (TIFFDirEntry), SEEK_CUR);
- if (!ReadOK(tif, &nextdir, sizeof (nextdir))) {
- TIFFError(module, "Error fetching directory link");
- return (0);
- }
- if (tif->tif_flags & TIFF_SWAB)
- TIFFSwabLong(&nextdir);
- } while (nextdir != 0);
- off = TIFFSeekFile(tif, 0, SEEK_CUR); /* get current offset */
- (void) TIFFSeekFile(tif, off - (toff_t)sizeof(nextdir), SEEK_SET);
- if (!WriteOK(tif, &diroff, sizeof (diroff))) {
- TIFFError(module, "Error writing directory link");
- return (0);
- }
- return (1);
-}
-
-/* vim: set ts=8 sts=8 sw=8 noet: */
projects / opencv / blobdiff