libs/tiff/tif_dirread.c

84 	TIFFDirEntry* dir;
125 		dir = (TIFFDirEntry *)CheckMalloc(tif,
127 		if (dir == NULL)
129 		if (!ReadOK(tif, dir, dircount*sizeof (TIFFDirEntry))) {
149 		dir = (TIFFDirEntry *)CheckMalloc(tif,
151 		if (dir == NULL)
157 			_TIFFmemcpy(dir, tif->tif_base + off,
167 	tif->tif_flags &= ~TIFF_BEENWRITING;	/* reset before new dir */
205 	for (dp = dir, n = dircount; n > 0; n--, dp++) {
220 	for (dp = dir, n = dircount; n > 0; n--, dp++) {
373 	for (dp = dir, n = dircount; n > 0; n--, dp++) {
515 		EstimateStripByteCounts(tif, dir, dircount);
531 		EstimateStripByteCounts(tif, dir, dircount);
533 	if (dir)
534 		_TIFFfree(tif, (char *)dir);
565 	if (dir)
566 		_TIFFfree(tif, dir);
571 EstimateStripByteCounts(TIFF* tif, TIFFDirEntry* dir, uint16 dircount)
591 		for (dp = dir, n = dircount; n > 0; n--, dp++) {
638 CheckDirCount(TIFF* tif, TIFFDirEntry* dir, uint32 count)
640 	if (count != dir->tdir_count) {
643 		    _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name,
644 		    dir->tdir_count, count);
654 TIFFFetchData(TIFF* tif, TIFFDirEntry* dir, char* cp)
656 	int w = tiffDataWidth[dir->tdir_type];
657 	tsize_t cc = dir->tdir_count * w;
660 		if (!SeekOK(tif, dir->tdir_offset))
665 		if (dir->tdir_offset + cc > tif->tif_size)
667 		_TIFFmemcpy(cp, tif->tif_base + dir->tdir_offset, cc);
670 		switch (dir->tdir_type) {
673 			TIFFSwabArrayOfShort((uint16*) cp, dir->tdir_count);
678 			TIFFSwabArrayOfLong((uint32*) cp, dir->tdir_count);
682 			TIFFSwabArrayOfLong((uint32*) cp, 2*dir->tdir_count);
685 			TIFFSwabArrayOfDouble((double*) cp, dir->tdir_count);
692 	    _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name);
700 TIFFFetchString(TIFF* tif, TIFFDirEntry* dir, char* cp)
702 	if (dir->tdir_count <= 4) {
703 		uint32 l = dir->tdir_offset;
706 		_TIFFmemcpy(cp, &l, dir->tdir_count);
709 	return (TIFFFetchData(tif, dir, cp));
716 cvtRational(TIFF* tif, TIFFDirEntry* dir, uint32 num, uint32 denom, float* rv)
721 		    _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name, num);
724 		if (dir->tdir_type == TIFF_RATIONAL)
738 TIFFFetchRational(TIFF* tif, TIFFDirEntry* dir)
743 	return (!TIFFFetchData(tif, dir, (char *)l) ||
744 	    !cvtRational(tif, dir, l[0], l[1], &v) ? 1.0f : v);
753 TIFFFetchFloat(TIFF* tif, TIFFDirEntry* dir)
755 	long l = TIFFExtractData(tif, dir->tdir_type, dir->tdir_offset);
765 TIFFFetchByteArray(TIFF* tif, TIFFDirEntry* dir, uint16* v)
767     if (dir->tdir_count <= 4) {
772             switch (dir->tdir_count) {
773                 case 4: v[3] = (uint16)(dir->tdir_offset & 0xff);
774                 case 3: v[2] = (uint16)((dir->tdir_offset >> 8) & 0xff);
775                 case 2: v[1] = (uint16)((dir->tdir_offset >> 16) & 0xff);
776                 case 1: v[0] = (uint16)(dir->tdir_offset >> 24);
779             switch (dir->tdir_count) {
780                 case 4: v[3] = (uint16)(dir->tdir_offset >> 24);
781                 case 3: v[2] = (uint16)((dir->tdir_offset >> 16) & 0xff);
782                 case 2: v[1] = (uint16)((dir->tdir_offset >> 8) & 0xff);
783                 case 1: v[0] = (uint16)(dir->tdir_offset & 0xff);
788         return (TIFFFetchData(tif, dir, (char*) v) != 0);	/* XXX */
795 TIFFFetchShortArray(TIFF* tif, TIFFDirEntry* dir, uint16* v)
797 	if (dir->tdir_count <= 2) {
799 			switch (dir->tdir_count) {
800 			case 2: v[1] = (uint16) (dir->tdir_offset & 0xffff);
801 			case 1: v[0] = (uint16) (dir->tdir_offset >> 16);
804 			switch (dir->tdir_count) {
805 			case 2: v[1] = (uint16) (dir->tdir_offset >> 16);
806 			case 1: v[0] = (uint16) (dir->tdir_offset & 0xffff);
811 		return (TIFFFetchData(tif, dir, (char *)v) != 0);
818 TIFFFetchShortPair(TIFF* tif, TIFFDirEntry* dir)
823 	switch (dir->tdir_type) {
826 		ok = TIFFFetchShortArray(tif, dir, v);
830 		ok  = TIFFFetchByteArray(tif, dir, v);
834 		TIFFSetField(tif, dir->tdir_tag, v[0], v[1]);
842 TIFFFetchLongArray(TIFF* tif, TIFFDirEntry* dir, uint32* v)
844 	if (dir->tdir_count == 1) {
845 		v[0] = dir->tdir_offset;
848 		return (TIFFFetchData(tif, dir, (char*) v) != 0);
855 TIFFFetchRationalArray(TIFF* tif, TIFFDirEntry* dir, float* v)
861 	    dir->tdir_count*tiffDataWidth[dir->tdir_type],
864 		if (TIFFFetchData(tif, dir, (char *)l)) {
866 			for (i = 0; i < dir->tdir_count; i++) {
867 				ok = cvtRational(tif, dir,
882 TIFFFetchFloatArray(TIFF* tif, TIFFDirEntry* dir, float* v)
885 	if (dir->tdir_count == 1) {
886 		v[0] = *(float*) &dir->tdir_offset;
887 		TIFFCvtIEEEFloatToNative(tif, dir->tdir_count, v);
889 	} else	if (TIFFFetchData(tif, dir, (char*) v)) {
890 		TIFFCvtIEEEFloatToNative(tif, dir->tdir_count, v);
900 TIFFFetchDoubleArray(TIFF* tif, TIFFDirEntry* dir, double* v)
902 	if (TIFFFetchData(tif, dir, (char*) v)) {
903 		TIFFCvtIEEEDoubleToNative(tif, dir->tdir_count, v);
921 TIFFFetchAnyArray(TIFF* tif, TIFFDirEntry* dir, double* v)
925 	switch (dir->tdir_type) {
928 		if (!TIFFFetchByteArray(tif, dir, (uint16*) v))
930 		if (dir->tdir_type == TIFF_BYTE) {
932 			for (i = dir->tdir_count-1; i >= 0; i--)
936 			for (i = dir->tdir_count-1; i >= 0; i--)
942 		if (!TIFFFetchShortArray(tif, dir, (uint16*) v))
944 		if (dir->tdir_type == TIFF_SHORT) {
946 			for (i = dir->tdir_count-1; i >= 0; i--)
950 			for (i = dir->tdir_count-1; i >= 0; i--)
956 		if (!TIFFFetchLongArray(tif, dir, (uint32*) v))
958 		if (dir->tdir_type == TIFF_LONG) {
960 			for (i = dir->tdir_count-1; i >= 0; i--)
964 			for (i = dir->tdir_count-1; i >= 0; i--)
970 		if (!TIFFFetchRationalArray(tif, dir, (float*) v))
973 		  for (i = dir->tdir_count-1; i >= 0; i--)
978 		if (!TIFFFetchFloatArray(tif, dir, (float*) v))
981 		  for (i = dir->tdir_count-1; i >= 0; i--)
986 		return (TIFFFetchDoubleArray(tif, dir, (double*) v));
993 		    _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name);
1146 TIFFFetchPerSampleShorts(TIFF* tif, TIFFDirEntry* dir, int* pl)
1151 	if (CheckDirCount(tif, dir, (uint32) samples)) {
1157 		if (TIFFFetchShortArray(tif, dir, v)) {
1163 			   _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name);
1182 TIFFFetchPerSampleAnys(TIFF* tif, TIFFDirEntry* dir, double* pl)
1187 	if (CheckDirCount(tif, dir, (uint32) samples)) {
1193 		if (TIFFFetchAnyArray(tif, dir, v)) {
1199 			   _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name);
1219 TIFFFetchStripThing(TIFF* tif, TIFFDirEntry* dir, long nstrips, uint32** lpp)
1224 	if (!CheckDirCount(tif, dir, (uint32) nstrips))
1234 	if (dir->tdir_type == (int)TIFF_SHORT) {
1239 		    dir->tdir_count* sizeof (uint16), "to fetch strip tag");
1242 		if( (status = TIFFFetchShortArray(tif, dir, dp)) != 0 ) {
1249 		status = TIFFFetchLongArray(tif, dir, lp);
1258 TIFFFetchExtraSamples(TIFF* tif, TIFFDirEntry* dir)
1264 	if (dir->tdir_count > NITEMS(buf))
1265 		v=(uint16*) _TIFFmalloc(tif, dir->tdir_count * sizeof (uint16));
1266 	if (dir->tdir_type == TIFF_BYTE)
1267 		status = TIFFFetchByteArray(tif, dir, v);
1269 		status = TIFFFetchShortArray(tif, dir, v);
1271 		status = TIFFSetField(tif, dir->tdir_tag, dir->tdir_count, v);
1283 TIFFFetchRefBlackWhite(TIFF* tif, TIFFDirEntry* dir)
1289 	if (dir->tdir_type == TIFF_RATIONAL)
1290 		return (TIFFFetchNormalTag(tif, dir));
1294 	cp = CheckMalloc(tif, dir->tdir_count * sizeof (uint32), mesg);
1295 	if( (ok = (cp && TIFFFetchLongArray(tif, dir, (uint32*) cp))) != 0) {
1297 		    CheckMalloc(tif, dir->tdir_count * sizeof (float), mesg);
1300 			for (i = 0; i < dir->tdir_count; i++)
1302 			ok = TIFFSetField(tif, dir->tdir_tag, fp);