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authorJörg Frings-Fürst <debian@jff-webhosting.net>2015-11-06 05:38:49 +0100
committerJörg Frings-Fürst <debian@jff-webhosting.net>2015-11-06 05:38:49 +0100
commit9491825ddff7a294d1f49061bae7044e426aeb2e (patch)
tree06e651099f87140ec534ae47fb8ce1ac6ec7976d /tiff/libtiff/tif_dirread.c
parentfa756339d4204bff7f2820067f58214d32780d17 (diff)
Imported Upstream version 1.8.3
Diffstat (limited to 'tiff/libtiff/tif_dirread.c')
-rwxr-xr-xtiff/libtiff/tif_dirread.c5640
1 files changed, 5640 insertions, 0 deletions
diff --git a/tiff/libtiff/tif_dirread.c b/tiff/libtiff/tif_dirread.c
new file mode 100755
index 0000000..7835a7c
--- /dev/null
+++ b/tiff/libtiff/tif_dirread.c
@@ -0,0 +1,5640 @@
+/* $Id: tif_dirread.c,v 1.183 2015-01-03 18:03:40 erouault 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 Read Support Routines.
+ */
+
+/* Suggested pending improvements:
+ * - add a field 'ignore' to the TIFFDirEntry structure, to flag status,
+ * eliminating current use of the IGNORE value, and therefore eliminating
+ * current irrational behaviour on tags with tag id code 0
+ * - add a field 'field_info' to the TIFFDirEntry structure, and set that with
+ * the pointer to the appropriate TIFFField structure early on in
+ * TIFFReadDirectory, so as to eliminate current possibly repetitive lookup.
+ */
+
+#include "tiffiop.h"
+
+#define IGNORE 0 /* tag placeholder used below */
+#define FAILED_FII ((uint32) -1)
+
+#ifdef HAVE_IEEEFP
+# define TIFFCvtIEEEFloatToNative(tif, n, fp)
+# define TIFFCvtIEEEDoubleToNative(tif, n, dp)
+#else
+extern void TIFFCvtIEEEFloatToNative(TIFF*, uint32, float*);
+extern void TIFFCvtIEEEDoubleToNative(TIFF*, uint32, double*);
+#endif
+
+enum TIFFReadDirEntryErr {
+ TIFFReadDirEntryErrOk = 0,
+ TIFFReadDirEntryErrCount = 1,
+ TIFFReadDirEntryErrType = 2,
+ TIFFReadDirEntryErrIo = 3,
+ TIFFReadDirEntryErrRange = 4,
+ TIFFReadDirEntryErrPsdif = 5,
+ TIFFReadDirEntryErrSizesan = 6,
+ TIFFReadDirEntryErrAlloc = 7,
+};
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryByte(TIFF* tif, TIFFDirEntry* direntry, uint8* value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryShort(TIFF* tif, TIFFDirEntry* direntry, uint16* value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryLong(TIFF* tif, TIFFDirEntry* direntry, uint32* value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryLong8(TIFF* tif, TIFFDirEntry* direntry, uint64* value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryFloat(TIFF* tif, TIFFDirEntry* direntry, float* value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryDouble(TIFF* tif, TIFFDirEntry* direntry, double* value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryIfd8(TIFF* tif, TIFFDirEntry* direntry, uint64* value);
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryArray(TIFF* tif, TIFFDirEntry* direntry, uint32* count, uint32 desttypesize, void** value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryByteArray(TIFF* tif, TIFFDirEntry* direntry, uint8** value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntrySbyteArray(TIFF* tif, TIFFDirEntry* direntry, int8** value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryShortArray(TIFF* tif, TIFFDirEntry* direntry, uint16** value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntrySshortArray(TIFF* tif, TIFFDirEntry* direntry, int16** value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryLongArray(TIFF* tif, TIFFDirEntry* direntry, uint32** value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntrySlongArray(TIFF* tif, TIFFDirEntry* direntry, int32** value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryLong8Array(TIFF* tif, TIFFDirEntry* direntry, uint64** value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntrySlong8Array(TIFF* tif, TIFFDirEntry* direntry, int64** value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryFloatArray(TIFF* tif, TIFFDirEntry* direntry, float** value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryDoubleArray(TIFF* tif, TIFFDirEntry* direntry, double** value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryIfd8Array(TIFF* tif, TIFFDirEntry* direntry, uint64** value);
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryPersampleShort(TIFF* tif, TIFFDirEntry* direntry, uint16* value);
+#if 0
+static enum TIFFReadDirEntryErr TIFFReadDirEntryPersampleDouble(TIFF* tif, TIFFDirEntry* direntry, double* value);
+#endif
+
+static void TIFFReadDirEntryCheckedByte(TIFF* tif, TIFFDirEntry* direntry, uint8* value);
+static void TIFFReadDirEntryCheckedSbyte(TIFF* tif, TIFFDirEntry* direntry, int8* value);
+static void TIFFReadDirEntryCheckedShort(TIFF* tif, TIFFDirEntry* direntry, uint16* value);
+static void TIFFReadDirEntryCheckedSshort(TIFF* tif, TIFFDirEntry* direntry, int16* value);
+static void TIFFReadDirEntryCheckedLong(TIFF* tif, TIFFDirEntry* direntry, uint32* value);
+static void TIFFReadDirEntryCheckedSlong(TIFF* tif, TIFFDirEntry* direntry, int32* value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedLong8(TIFF* tif, TIFFDirEntry* direntry, uint64* value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSlong8(TIFF* tif, TIFFDirEntry* direntry, int64* value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedRational(TIFF* tif, TIFFDirEntry* direntry, double* value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSrational(TIFF* tif, TIFFDirEntry* direntry, double* value);
+static void TIFFReadDirEntryCheckedFloat(TIFF* tif, TIFFDirEntry* direntry, float* value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedDouble(TIFF* tif, TIFFDirEntry* direntry, double* value);
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSbyte(int8 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteShort(uint16 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSshort(int16 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteLong(uint32 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSlong(int32 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteLong8(uint64 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSlong8(int64 value);
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteByte(uint8 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteShort(uint16 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSshort(int16 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteLong(uint32 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSlong(int32 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteLong8(uint64 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSlong8(int64 value);
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSbyte(int8 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSshort(int16 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortLong(uint32 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSlong(int32 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortLong8(uint64 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSlong8(int64 value);
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortShort(uint16 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortLong(uint32 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortSlong(int32 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortLong8(uint64 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortSlong8(int64 value);
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSbyte(int8 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSshort(int16 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSlong(int32 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongLong8(uint64 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSlong8(int64 value);
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSlongLong(uint32 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSlongLong8(uint64 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSlongSlong8(int64 value);
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLong8Sbyte(int8 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLong8Sshort(int16 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLong8Slong(int32 value);
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLong8Slong8(int64 value);
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSlong8Long8(uint64 value);
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryData(TIFF* tif, uint64 offset, tmsize_t size, void* dest);
+static void TIFFReadDirEntryOutputErr(TIFF* tif, enum TIFFReadDirEntryErr err, const char* module, const char* tagname, int recover);
+
+static void TIFFReadDirectoryCheckOrder(TIFF* tif, TIFFDirEntry* dir, uint16 dircount);
+static TIFFDirEntry* TIFFReadDirectoryFindEntry(TIFF* tif, TIFFDirEntry* dir, uint16 dircount, uint16 tagid);
+static void TIFFReadDirectoryFindFieldInfo(TIFF* tif, uint16 tagid, uint32* fii);
+
+static int EstimateStripByteCounts(TIFF* tif, TIFFDirEntry* dir, uint16 dircount);
+static void MissingRequired(TIFF*, const char*);
+static int TIFFCheckDirOffset(TIFF* tif, uint64 diroff);
+static int CheckDirCount(TIFF*, TIFFDirEntry*, uint32);
+static uint16 TIFFFetchDirectory(TIFF* tif, uint64 diroff, TIFFDirEntry** pdir, uint64* nextdiroff);
+static int TIFFFetchNormalTag(TIFF*, TIFFDirEntry*, int recover);
+static int TIFFFetchStripThing(TIFF* tif, TIFFDirEntry* dir, uint32 nstrips, uint64** lpp);
+static int TIFFFetchSubjectDistance(TIFF*, TIFFDirEntry*);
+static void ChopUpSingleUncompressedStrip(TIFF*);
+static uint64 TIFFReadUInt64(const uint8 *value);
+
+typedef union _UInt64Aligned_t
+{
+ double d;
+ uint64 l;
+ uint32 i[2];
+ uint16 s[4];
+ uint8 c[8];
+} UInt64Aligned_t;
+
+/*
+ Unaligned safe copy of a uint64 value from an octet array.
+*/
+static uint64 TIFFReadUInt64(const uint8 *value)
+{
+ UInt64Aligned_t result;
+
+ result.c[0]=value[0];
+ result.c[1]=value[1];
+ result.c[2]=value[2];
+ result.c[3]=value[3];
+ result.c[4]=value[4];
+ result.c[5]=value[5];
+ result.c[6]=value[6];
+ result.c[7]=value[7];
+
+ return result.l;
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryByte(TIFF* tif, TIFFDirEntry* direntry, uint8* value)
+{
+ enum TIFFReadDirEntryErr err;
+ if (direntry->tdir_count!=1)
+ return(TIFFReadDirEntryErrCount);
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ TIFFReadDirEntryCheckedByte(tif,direntry,value);
+ return(TIFFReadDirEntryErrOk);
+ case TIFF_SBYTE:
+ {
+ int8 m;
+ TIFFReadDirEntryCheckedSbyte(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeByteSbyte(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint8)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SHORT:
+ {
+ uint16 m;
+ TIFFReadDirEntryCheckedShort(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeByteShort(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint8)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SSHORT:
+ {
+ int16 m;
+ TIFFReadDirEntryCheckedSshort(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeByteSshort(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint8)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG:
+ {
+ uint32 m;
+ TIFFReadDirEntryCheckedLong(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeByteLong(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint8)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SLONG:
+ {
+ int32 m;
+ TIFFReadDirEntryCheckedSlong(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeByteSlong(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint8)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG8:
+ {
+ uint64 m;
+ err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ err=TIFFReadDirEntryCheckRangeByteLong8(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint8)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SLONG8:
+ {
+ int64 m;
+ err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ err=TIFFReadDirEntryCheckRangeByteSlong8(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint8)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryShort(TIFF* tif, TIFFDirEntry* direntry, uint16* value)
+{
+ enum TIFFReadDirEntryErr err;
+ if (direntry->tdir_count!=1)
+ return(TIFFReadDirEntryErrCount);
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8 m;
+ TIFFReadDirEntryCheckedByte(tif,direntry,&m);
+ *value=(uint16)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SBYTE:
+ {
+ int8 m;
+ TIFFReadDirEntryCheckedSbyte(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeShortSbyte(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint16)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SHORT:
+ TIFFReadDirEntryCheckedShort(tif,direntry,value);
+ return(TIFFReadDirEntryErrOk);
+ case TIFF_SSHORT:
+ {
+ int16 m;
+ TIFFReadDirEntryCheckedSshort(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeShortSshort(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint16)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG:
+ {
+ uint32 m;
+ TIFFReadDirEntryCheckedLong(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeShortLong(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint16)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SLONG:
+ {
+ int32 m;
+ TIFFReadDirEntryCheckedSlong(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeShortSlong(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint16)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG8:
+ {
+ uint64 m;
+ err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ err=TIFFReadDirEntryCheckRangeShortLong8(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint16)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SLONG8:
+ {
+ int64 m;
+ err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ err=TIFFReadDirEntryCheckRangeShortSlong8(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint16)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryLong(TIFF* tif, TIFFDirEntry* direntry, uint32* value)
+{
+ enum TIFFReadDirEntryErr err;
+ if (direntry->tdir_count!=1)
+ return(TIFFReadDirEntryErrCount);
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8 m;
+ TIFFReadDirEntryCheckedByte(tif,direntry,&m);
+ *value=(uint32)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SBYTE:
+ {
+ int8 m;
+ TIFFReadDirEntryCheckedSbyte(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeLongSbyte(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint32)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SHORT:
+ {
+ uint16 m;
+ TIFFReadDirEntryCheckedShort(tif,direntry,&m);
+ *value=(uint32)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SSHORT:
+ {
+ int16 m;
+ TIFFReadDirEntryCheckedSshort(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeLongSshort(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint32)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG:
+ TIFFReadDirEntryCheckedLong(tif,direntry,value);
+ return(TIFFReadDirEntryErrOk);
+ case TIFF_SLONG:
+ {
+ int32 m;
+ TIFFReadDirEntryCheckedSlong(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeLongSlong(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint32)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG8:
+ {
+ uint64 m;
+ err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ err=TIFFReadDirEntryCheckRangeLongLong8(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint32)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SLONG8:
+ {
+ int64 m;
+ err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ err=TIFFReadDirEntryCheckRangeLongSlong8(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint32)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryLong8(TIFF* tif, TIFFDirEntry* direntry, uint64* value)
+{
+ enum TIFFReadDirEntryErr err;
+ if (direntry->tdir_count!=1)
+ return(TIFFReadDirEntryErrCount);
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8 m;
+ TIFFReadDirEntryCheckedByte(tif,direntry,&m);
+ *value=(uint64)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SBYTE:
+ {
+ int8 m;
+ TIFFReadDirEntryCheckedSbyte(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeLong8Sbyte(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint64)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SHORT:
+ {
+ uint16 m;
+ TIFFReadDirEntryCheckedShort(tif,direntry,&m);
+ *value=(uint64)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SSHORT:
+ {
+ int16 m;
+ TIFFReadDirEntryCheckedSshort(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeLong8Sshort(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint64)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG:
+ {
+ uint32 m;
+ TIFFReadDirEntryCheckedLong(tif,direntry,&m);
+ *value=(uint64)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SLONG:
+ {
+ int32 m;
+ TIFFReadDirEntryCheckedSlong(tif,direntry,&m);
+ err=TIFFReadDirEntryCheckRangeLong8Slong(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint64)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG8:
+ err=TIFFReadDirEntryCheckedLong8(tif,direntry,value);
+ return(err);
+ case TIFF_SLONG8:
+ {
+ int64 m;
+ err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ err=TIFFReadDirEntryCheckRangeLong8Slong8(m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(uint64)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryFloat(TIFF* tif, TIFFDirEntry* direntry, float* value)
+{
+ enum TIFFReadDirEntryErr err;
+ if (direntry->tdir_count!=1)
+ return(TIFFReadDirEntryErrCount);
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8 m;
+ TIFFReadDirEntryCheckedByte(tif,direntry,&m);
+ *value=(float)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SBYTE:
+ {
+ int8 m;
+ TIFFReadDirEntryCheckedSbyte(tif,direntry,&m);
+ *value=(float)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SHORT:
+ {
+ uint16 m;
+ TIFFReadDirEntryCheckedShort(tif,direntry,&m);
+ *value=(float)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SSHORT:
+ {
+ int16 m;
+ TIFFReadDirEntryCheckedSshort(tif,direntry,&m);
+ *value=(float)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG:
+ {
+ uint32 m;
+ TIFFReadDirEntryCheckedLong(tif,direntry,&m);
+ *value=(float)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SLONG:
+ {
+ int32 m;
+ TIFFReadDirEntryCheckedSlong(tif,direntry,&m);
+ *value=(float)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG8:
+ {
+ uint64 m;
+ err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+#if defined(__WIN32__) && (_MSC_VER < 1500)
+ /*
+ * XXX: MSVC 6.0 does not support conversion
+ * of 64-bit integers into floating point
+ * values.
+ */
+ *value = _TIFFUInt64ToFloat(m);
+#else
+ *value=(float)m;
+#endif
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SLONG8:
+ {
+ int64 m;
+ err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(float)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_RATIONAL:
+ {
+ double m;
+ err=TIFFReadDirEntryCheckedRational(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(float)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SRATIONAL:
+ {
+ double m;
+ err=TIFFReadDirEntryCheckedSrational(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(float)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_FLOAT:
+ TIFFReadDirEntryCheckedFloat(tif,direntry,value);
+ return(TIFFReadDirEntryErrOk);
+ case TIFF_DOUBLE:
+ {
+ double m;
+ err=TIFFReadDirEntryCheckedDouble(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(float)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryDouble(TIFF* tif, TIFFDirEntry* direntry, double* value)
+{
+ enum TIFFReadDirEntryErr err;
+ if (direntry->tdir_count!=1)
+ return(TIFFReadDirEntryErrCount);
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8 m;
+ TIFFReadDirEntryCheckedByte(tif,direntry,&m);
+ *value=(double)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SBYTE:
+ {
+ int8 m;
+ TIFFReadDirEntryCheckedSbyte(tif,direntry,&m);
+ *value=(double)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SHORT:
+ {
+ uint16 m;
+ TIFFReadDirEntryCheckedShort(tif,direntry,&m);
+ *value=(double)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SSHORT:
+ {
+ int16 m;
+ TIFFReadDirEntryCheckedSshort(tif,direntry,&m);
+ *value=(double)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG:
+ {
+ uint32 m;
+ TIFFReadDirEntryCheckedLong(tif,direntry,&m);
+ *value=(double)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SLONG:
+ {
+ int32 m;
+ TIFFReadDirEntryCheckedSlong(tif,direntry,&m);
+ *value=(double)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG8:
+ {
+ uint64 m;
+ err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+#if defined(__WIN32__) && (_MSC_VER < 1500)
+ /*
+ * XXX: MSVC 6.0 does not support conversion
+ * of 64-bit integers into floating point
+ * values.
+ */
+ *value = _TIFFUInt64ToDouble(m);
+#else
+ *value = (double)m;
+#endif
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SLONG8:
+ {
+ int64 m;
+ err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ *value=(double)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_RATIONAL:
+ err=TIFFReadDirEntryCheckedRational(tif,direntry,value);
+ return(err);
+ case TIFF_SRATIONAL:
+ err=TIFFReadDirEntryCheckedSrational(tif,direntry,value);
+ return(err);
+ case TIFF_FLOAT:
+ {
+ float m;
+ TIFFReadDirEntryCheckedFloat(tif,direntry,&m);
+ *value=(double)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_DOUBLE:
+ err=TIFFReadDirEntryCheckedDouble(tif,direntry,value);
+ return(err);
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryIfd8(TIFF* tif, TIFFDirEntry* direntry, uint64* value)
+{
+ enum TIFFReadDirEntryErr err;
+ if (direntry->tdir_count!=1)
+ return(TIFFReadDirEntryErrCount);
+ switch (direntry->tdir_type)
+ {
+ case TIFF_LONG:
+ case TIFF_IFD:
+ {
+ uint32 m;
+ TIFFReadDirEntryCheckedLong(tif,direntry,&m);
+ *value=(uint64)m;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_LONG8:
+ case TIFF_IFD8:
+ err=TIFFReadDirEntryCheckedLong8(tif,direntry,value);
+ return(err);
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryArray(TIFF* tif, TIFFDirEntry* direntry, uint32* count, uint32 desttypesize, void** value)
+{
+ int typesize;
+ uint32 datasize;
+ void* data;
+ typesize=TIFFDataWidth(direntry->tdir_type);
+ if ((direntry->tdir_count==0)||(typesize==0))
+ {
+ *value=0;
+ return(TIFFReadDirEntryErrOk);
+ }
+ (void) desttypesize;
+
+ /*
+ * As a sanity check, make sure we have no more than a 2GB tag array
+ * in either the current data type or the dest data type. This also
+ * avoids problems with overflow of tmsize_t on 32bit systems.
+ */
+ if ((uint64)(2147483647/typesize)<direntry->tdir_count)
+ return(TIFFReadDirEntryErrSizesan);
+ if ((uint64)(2147483647/desttypesize)<direntry->tdir_count)
+ return(TIFFReadDirEntryErrSizesan);
+
+ *count=(uint32)direntry->tdir_count;
+ datasize=(*count)*typesize;
+ assert((tmsize_t)datasize>0);
+ data=_TIFFCheckMalloc(tif, *count, typesize, "ReadDirEntryArray");
+ if (data==0)
+ return(TIFFReadDirEntryErrAlloc);
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ if (datasize<=4)
+ _TIFFmemcpy(data,&direntry->tdir_offset,datasize);
+ else
+ {
+ enum TIFFReadDirEntryErr err;
+ uint32 offset = direntry->tdir_offset.toff_long;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(&offset);
+ err=TIFFReadDirEntryData(tif,(uint64)offset,(tmsize_t)datasize,data);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ }
+ }
+ else
+ {
+ if (datasize<=8)
+ _TIFFmemcpy(data,&direntry->tdir_offset,datasize);
+ else
+ {
+ enum TIFFReadDirEntryErr err;
+ uint64 offset = direntry->tdir_offset.toff_long8;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(&offset);
+ err=TIFFReadDirEntryData(tif,offset,(tmsize_t)datasize,data);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ }
+ }
+ *value=data;
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryByteArray(TIFF* tif, TIFFDirEntry* direntry, uint8** value)
+{
+ enum TIFFReadDirEntryErr err;
+ uint32 count;
+ void* origdata;
+ uint8* data;
+ switch (direntry->tdir_type)
+ {
+ case TIFF_ASCII:
+ case TIFF_UNDEFINED:
+ case TIFF_BYTE:
+ case TIFF_SBYTE:
+ case TIFF_SHORT:
+ case TIFF_SSHORT:
+ case TIFF_LONG:
+ case TIFF_SLONG:
+ case TIFF_LONG8:
+ case TIFF_SLONG8:
+ break;
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+ err=TIFFReadDirEntryArray(tif,direntry,&count,1,&origdata);
+ if ((err!=TIFFReadDirEntryErrOk)||(origdata==0))
+ {
+ *value=0;
+ return(err);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_ASCII:
+ case TIFF_UNDEFINED:
+ case TIFF_BYTE:
+ *value=(uint8*)origdata;
+ return(TIFFReadDirEntryErrOk);
+ case TIFF_SBYTE:
+ {
+ int8* m;
+ uint32 n;
+ m=(int8*)origdata;
+ for (n=0; n<count; n++)
+ {
+ err=TIFFReadDirEntryCheckRangeByteSbyte(*m);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(origdata);
+ return(err);
+ }
+ m++;
+ }
+ *value=(uint8*)origdata;
+ return(TIFFReadDirEntryErrOk);
+ }
+ }
+ data=(uint8*)_TIFFmalloc(count);
+ if (data==0)
+ {
+ _TIFFfree(origdata);
+ return(TIFFReadDirEntryErrAlloc);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_SHORT:
+ {
+ uint16* ma;
+ uint8* mb;
+ uint32 n;
+ ma=(uint16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort(ma);
+ err=TIFFReadDirEntryCheckRangeByteShort(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint8)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SSHORT:
+ {
+ int16* ma;
+ uint8* mb;
+ uint32 n;
+ ma=(int16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort((uint16*)ma);
+ err=TIFFReadDirEntryCheckRangeByteSshort(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint8)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG:
+ {
+ uint32* ma;
+ uint8* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ err=TIFFReadDirEntryCheckRangeByteLong(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint8)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG:
+ {
+ int32* ma;
+ uint8* mb;
+ uint32 n;
+ ma=(int32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)ma);
+ err=TIFFReadDirEntryCheckRangeByteSlong(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint8)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG8:
+ {
+ uint64* ma;
+ uint8* mb;
+ uint32 n;
+ ma=(uint64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(ma);
+ err=TIFFReadDirEntryCheckRangeByteLong8(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint8)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG8:
+ {
+ int64* ma;
+ uint8* mb;
+ uint32 n;
+ ma=(int64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8((uint64*)ma);
+ err=TIFFReadDirEntryCheckRangeByteSlong8(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint8)(*ma++);
+ }
+ }
+ break;
+ }
+ _TIFFfree(origdata);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ *value=data;
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntrySbyteArray(TIFF* tif, TIFFDirEntry* direntry, int8** value)
+{
+ enum TIFFReadDirEntryErr err;
+ uint32 count;
+ void* origdata;
+ int8* data;
+ switch (direntry->tdir_type)
+ {
+ case TIFF_UNDEFINED:
+ case TIFF_BYTE:
+ case TIFF_SBYTE:
+ case TIFF_SHORT:
+ case TIFF_SSHORT:
+ case TIFF_LONG:
+ case TIFF_SLONG:
+ case TIFF_LONG8:
+ case TIFF_SLONG8:
+ break;
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+ err=TIFFReadDirEntryArray(tif,direntry,&count,1,&origdata);
+ if ((err!=TIFFReadDirEntryErrOk)||(origdata==0))
+ {
+ *value=0;
+ return(err);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_UNDEFINED:
+ case TIFF_BYTE:
+ {
+ uint8* m;
+ uint32 n;
+ m=(uint8*)origdata;
+ for (n=0; n<count; n++)
+ {
+ err=TIFFReadDirEntryCheckRangeSbyteByte(*m);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(origdata);
+ return(err);
+ }
+ m++;
+ }
+ *value=(int8*)origdata;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SBYTE:
+ *value=(int8*)origdata;
+ return(TIFFReadDirEntryErrOk);
+ }
+ data=(int8*)_TIFFmalloc(count);
+ if (data==0)
+ {
+ _TIFFfree(origdata);
+ return(TIFFReadDirEntryErrAlloc);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_SHORT:
+ {
+ uint16* ma;
+ int8* mb;
+ uint32 n;
+ ma=(uint16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort(ma);
+ err=TIFFReadDirEntryCheckRangeSbyteShort(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(int8)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SSHORT:
+ {
+ int16* ma;
+ int8* mb;
+ uint32 n;
+ ma=(int16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort((uint16*)ma);
+ err=TIFFReadDirEntryCheckRangeSbyteSshort(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(int8)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG:
+ {
+ uint32* ma;
+ int8* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ err=TIFFReadDirEntryCheckRangeSbyteLong(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(int8)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG:
+ {
+ int32* ma;
+ int8* mb;
+ uint32 n;
+ ma=(int32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)ma);
+ err=TIFFReadDirEntryCheckRangeSbyteSlong(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(int8)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG8:
+ {
+ uint64* ma;
+ int8* mb;
+ uint32 n;
+ ma=(uint64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(ma);
+ err=TIFFReadDirEntryCheckRangeSbyteLong8(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(int8)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG8:
+ {
+ int64* ma;
+ int8* mb;
+ uint32 n;
+ ma=(int64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8((uint64*)ma);
+ err=TIFFReadDirEntryCheckRangeSbyteSlong8(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(int8)(*ma++);
+ }
+ }
+ break;
+ }
+ _TIFFfree(origdata);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ *value=data;
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryShortArray(TIFF* tif, TIFFDirEntry* direntry, uint16** value)
+{
+ enum TIFFReadDirEntryErr err;
+ uint32 count;
+ void* origdata;
+ uint16* data;
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ case TIFF_SBYTE:
+ case TIFF_SHORT:
+ case TIFF_SSHORT:
+ case TIFF_LONG:
+ case TIFF_SLONG:
+ case TIFF_LONG8:
+ case TIFF_SLONG8:
+ break;
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+ err=TIFFReadDirEntryArray(tif,direntry,&count,2,&origdata);
+ if ((err!=TIFFReadDirEntryErrOk)||(origdata==0))
+ {
+ *value=0;
+ return(err);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_SHORT:
+ *value=(uint16*)origdata;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfShort(*value,count);
+ return(TIFFReadDirEntryErrOk);
+ case TIFF_SSHORT:
+ {
+ int16* m;
+ uint32 n;
+ m=(int16*)origdata;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort((uint16*)m);
+ err=TIFFReadDirEntryCheckRangeShortSshort(*m);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(origdata);
+ return(err);
+ }
+ m++;
+ }
+ *value=(uint16*)origdata;
+ return(TIFFReadDirEntryErrOk);
+ }
+ }
+ data=(uint16*)_TIFFmalloc(count*2);
+ if (data==0)
+ {
+ _TIFFfree(origdata);
+ return(TIFFReadDirEntryErrAlloc);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8* ma;
+ uint16* mb;
+ uint32 n;
+ ma=(uint8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(uint16)(*ma++);
+ }
+ break;
+ case TIFF_SBYTE:
+ {
+ int8* ma;
+ uint16* mb;
+ uint32 n;
+ ma=(int8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ err=TIFFReadDirEntryCheckRangeShortSbyte(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint16)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG:
+ {
+ uint32* ma;
+ uint16* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ err=TIFFReadDirEntryCheckRangeShortLong(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint16)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG:
+ {
+ int32* ma;
+ uint16* mb;
+ uint32 n;
+ ma=(int32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)ma);
+ err=TIFFReadDirEntryCheckRangeShortSlong(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint16)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG8:
+ {
+ uint64* ma;
+ uint16* mb;
+ uint32 n;
+ ma=(uint64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(ma);
+ err=TIFFReadDirEntryCheckRangeShortLong8(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint16)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG8:
+ {
+ int64* ma;
+ uint16* mb;
+ uint32 n;
+ ma=(int64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8((uint64*)ma);
+ err=TIFFReadDirEntryCheckRangeShortSlong8(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint16)(*ma++);
+ }
+ }
+ break;
+ }
+ _TIFFfree(origdata);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ *value=data;
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntrySshortArray(TIFF* tif, TIFFDirEntry* direntry, int16** value)
+{
+ enum TIFFReadDirEntryErr err;
+ uint32 count;
+ void* origdata;
+ int16* data;
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ case TIFF_SBYTE:
+ case TIFF_SHORT:
+ case TIFF_SSHORT:
+ case TIFF_LONG:
+ case TIFF_SLONG:
+ case TIFF_LONG8:
+ case TIFF_SLONG8:
+ break;
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+ err=TIFFReadDirEntryArray(tif,direntry,&count,2,&origdata);
+ if ((err!=TIFFReadDirEntryErrOk)||(origdata==0))
+ {
+ *value=0;
+ return(err);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_SHORT:
+ {
+ uint16* m;
+ uint32 n;
+ m=(uint16*)origdata;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort(m);
+ err=TIFFReadDirEntryCheckRangeSshortShort(*m);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(origdata);
+ return(err);
+ }
+ m++;
+ }
+ *value=(int16*)origdata;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SSHORT:
+ *value=(int16*)origdata;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfShort((uint16*)(*value),count);
+ return(TIFFReadDirEntryErrOk);
+ }
+ data=(int16*)_TIFFmalloc(count*2);
+ if (data==0)
+ {
+ _TIFFfree(origdata);
+ return(TIFFReadDirEntryErrAlloc);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8* ma;
+ int16* mb;
+ uint32 n;
+ ma=(uint8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(int16)(*ma++);
+ }
+ break;
+ case TIFF_SBYTE:
+ {
+ int8* ma;
+ int16* mb;
+ uint32 n;
+ ma=(int8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(int16)(*ma++);
+ }
+ break;
+ case TIFF_LONG:
+ {
+ uint32* ma;
+ int16* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ err=TIFFReadDirEntryCheckRangeSshortLong(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(int16)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG:
+ {
+ int32* ma;
+ int16* mb;
+ uint32 n;
+ ma=(int32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)ma);
+ err=TIFFReadDirEntryCheckRangeSshortSlong(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(int16)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG8:
+ {
+ uint64* ma;
+ int16* mb;
+ uint32 n;
+ ma=(uint64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(ma);
+ err=TIFFReadDirEntryCheckRangeSshortLong8(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(int16)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG8:
+ {
+ int64* ma;
+ int16* mb;
+ uint32 n;
+ ma=(int64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8((uint64*)ma);
+ err=TIFFReadDirEntryCheckRangeSshortSlong8(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(int16)(*ma++);
+ }
+ }
+ break;
+ }
+ _TIFFfree(origdata);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ *value=data;
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryLongArray(TIFF* tif, TIFFDirEntry* direntry, uint32** value)
+{
+ enum TIFFReadDirEntryErr err;
+ uint32 count;
+ void* origdata;
+ uint32* data;
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ case TIFF_SBYTE:
+ case TIFF_SHORT:
+ case TIFF_SSHORT:
+ case TIFF_LONG:
+ case TIFF_SLONG:
+ case TIFF_LONG8:
+ case TIFF_SLONG8:
+ break;
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+ err=TIFFReadDirEntryArray(tif,direntry,&count,4,&origdata);
+ if ((err!=TIFFReadDirEntryErrOk)||(origdata==0))
+ {
+ *value=0;
+ return(err);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_LONG:
+ *value=(uint32*)origdata;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfLong(*value,count);
+ return(TIFFReadDirEntryErrOk);
+ case TIFF_SLONG:
+ {
+ int32* m;
+ uint32 n;
+ m=(int32*)origdata;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)m);
+ err=TIFFReadDirEntryCheckRangeLongSlong(*m);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(origdata);
+ return(err);
+ }
+ m++;
+ }
+ *value=(uint32*)origdata;
+ return(TIFFReadDirEntryErrOk);
+ }
+ }
+ data=(uint32*)_TIFFmalloc(count*4);
+ if (data==0)
+ {
+ _TIFFfree(origdata);
+ return(TIFFReadDirEntryErrAlloc);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8* ma;
+ uint32* mb;
+ uint32 n;
+ ma=(uint8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(uint32)(*ma++);
+ }
+ break;
+ case TIFF_SBYTE:
+ {
+ int8* ma;
+ uint32* mb;
+ uint32 n;
+ ma=(int8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ err=TIFFReadDirEntryCheckRangeLongSbyte(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint32)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SHORT:
+ {
+ uint16* ma;
+ uint32* mb;
+ uint32 n;
+ ma=(uint16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort(ma);
+ *mb++=(uint32)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SSHORT:
+ {
+ int16* ma;
+ uint32* mb;
+ uint32 n;
+ ma=(int16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort((uint16*)ma);
+ err=TIFFReadDirEntryCheckRangeLongSshort(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint32)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG8:
+ {
+ uint64* ma;
+ uint32* mb;
+ uint32 n;
+ ma=(uint64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(ma);
+ err=TIFFReadDirEntryCheckRangeLongLong8(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint32)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG8:
+ {
+ int64* ma;
+ uint32* mb;
+ uint32 n;
+ ma=(int64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8((uint64*)ma);
+ err=TIFFReadDirEntryCheckRangeLongSlong8(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint32)(*ma++);
+ }
+ }
+ break;
+ }
+ _TIFFfree(origdata);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ *value=data;
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntrySlongArray(TIFF* tif, TIFFDirEntry* direntry, int32** value)
+{
+ enum TIFFReadDirEntryErr err;
+ uint32 count;
+ void* origdata;
+ int32* data;
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ case TIFF_SBYTE:
+ case TIFF_SHORT:
+ case TIFF_SSHORT:
+ case TIFF_LONG:
+ case TIFF_SLONG:
+ case TIFF_LONG8:
+ case TIFF_SLONG8:
+ break;
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+ err=TIFFReadDirEntryArray(tif,direntry,&count,4,&origdata);
+ if ((err!=TIFFReadDirEntryErrOk)||(origdata==0))
+ {
+ *value=0;
+ return(err);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_LONG:
+ {
+ uint32* m;
+ uint32 n;
+ m=(uint32*)origdata;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)m);
+ err=TIFFReadDirEntryCheckRangeSlongLong(*m);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(origdata);
+ return(err);
+ }
+ m++;
+ }
+ *value=(int32*)origdata;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SLONG:
+ *value=(int32*)origdata;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfLong((uint32*)(*value),count);
+ return(TIFFReadDirEntryErrOk);
+ }
+ data=(int32*)_TIFFmalloc(count*4);
+ if (data==0)
+ {
+ _TIFFfree(origdata);
+ return(TIFFReadDirEntryErrAlloc);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8* ma;
+ int32* mb;
+ uint32 n;
+ ma=(uint8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(int32)(*ma++);
+ }
+ break;
+ case TIFF_SBYTE:
+ {
+ int8* ma;
+ int32* mb;
+ uint32 n;
+ ma=(int8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(int32)(*ma++);
+ }
+ break;
+ case TIFF_SHORT:
+ {
+ uint16* ma;
+ int32* mb;
+ uint32 n;
+ ma=(uint16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort(ma);
+ *mb++=(int32)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SSHORT:
+ {
+ int16* ma;
+ int32* mb;
+ uint32 n;
+ ma=(int16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort((uint16*)ma);
+ *mb++=(int32)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG8:
+ {
+ uint64* ma;
+ int32* mb;
+ uint32 n;
+ ma=(uint64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(ma);
+ err=TIFFReadDirEntryCheckRangeSlongLong8(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(int32)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG8:
+ {
+ int64* ma;
+ int32* mb;
+ uint32 n;
+ ma=(int64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8((uint64*)ma);
+ err=TIFFReadDirEntryCheckRangeSlongSlong8(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(int32)(*ma++);
+ }
+ }
+ break;
+ }
+ _TIFFfree(origdata);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ *value=data;
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryLong8Array(TIFF* tif, TIFFDirEntry* direntry, uint64** value)
+{
+ enum TIFFReadDirEntryErr err;
+ uint32 count;
+ void* origdata;
+ uint64* data;
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ case TIFF_SBYTE:
+ case TIFF_SHORT:
+ case TIFF_SSHORT:
+ case TIFF_LONG:
+ case TIFF_SLONG:
+ case TIFF_LONG8:
+ case TIFF_SLONG8:
+ break;
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+ err=TIFFReadDirEntryArray(tif,direntry,&count,8,&origdata);
+ if ((err!=TIFFReadDirEntryErrOk)||(origdata==0))
+ {
+ *value=0;
+ return(err);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_LONG8:
+ *value=(uint64*)origdata;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfLong8(*value,count);
+ return(TIFFReadDirEntryErrOk);
+ case TIFF_SLONG8:
+ {
+ int64* m;
+ uint32 n;
+ m=(int64*)origdata;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8((uint64*)m);
+ err=TIFFReadDirEntryCheckRangeLong8Slong8(*m);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(origdata);
+ return(err);
+ }
+ m++;
+ }
+ *value=(uint64*)origdata;
+ return(TIFFReadDirEntryErrOk);
+ }
+ }
+ data=(uint64*)_TIFFmalloc(count*8);
+ if (data==0)
+ {
+ _TIFFfree(origdata);
+ return(TIFFReadDirEntryErrAlloc);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8* ma;
+ uint64* mb;
+ uint32 n;
+ ma=(uint8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(uint64)(*ma++);
+ }
+ break;
+ case TIFF_SBYTE:
+ {
+ int8* ma;
+ uint64* mb;
+ uint32 n;
+ ma=(int8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ err=TIFFReadDirEntryCheckRangeLong8Sbyte(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint64)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SHORT:
+ {
+ uint16* ma;
+ uint64* mb;
+ uint32 n;
+ ma=(uint16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort(ma);
+ *mb++=(uint64)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SSHORT:
+ {
+ int16* ma;
+ uint64* mb;
+ uint32 n;
+ ma=(int16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort((uint16*)ma);
+ err=TIFFReadDirEntryCheckRangeLong8Sshort(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint64)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG:
+ {
+ uint32* ma;
+ uint64* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ *mb++=(uint64)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG:
+ {
+ int32* ma;
+ uint64* mb;
+ uint32 n;
+ ma=(int32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)ma);
+ err=TIFFReadDirEntryCheckRangeLong8Slong(*ma);
+ if (err!=TIFFReadDirEntryErrOk)
+ break;
+ *mb++=(uint64)(*ma++);
+ }
+ }
+ break;
+ }
+ _TIFFfree(origdata);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ *value=data;
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntrySlong8Array(TIFF* tif, TIFFDirEntry* direntry, int64** value)
+{
+ enum TIFFReadDirEntryErr err;
+ uint32 count;
+ void* origdata;
+ int64* data;
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ case TIFF_SBYTE:
+ case TIFF_SHORT:
+ case TIFF_SSHORT:
+ case TIFF_LONG:
+ case TIFF_SLONG:
+ case TIFF_LONG8:
+ case TIFF_SLONG8:
+ break;
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+ err=TIFFReadDirEntryArray(tif,direntry,&count,8,&origdata);
+ if ((err!=TIFFReadDirEntryErrOk)||(origdata==0))
+ {
+ *value=0;
+ return(err);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_LONG8:
+ {
+ uint64* m;
+ uint32 n;
+ m=(uint64*)origdata;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(m);
+ err=TIFFReadDirEntryCheckRangeSlong8Long8(*m);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(origdata);
+ return(err);
+ }
+ m++;
+ }
+ *value=(int64*)origdata;
+ return(TIFFReadDirEntryErrOk);
+ }
+ case TIFF_SLONG8:
+ *value=(int64*)origdata;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfLong8((uint64*)(*value),count);
+ return(TIFFReadDirEntryErrOk);
+ }
+ data=(int64*)_TIFFmalloc(count*8);
+ if (data==0)
+ {
+ _TIFFfree(origdata);
+ return(TIFFReadDirEntryErrAlloc);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8* ma;
+ int64* mb;
+ uint32 n;
+ ma=(uint8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(int64)(*ma++);
+ }
+ break;
+ case TIFF_SBYTE:
+ {
+ int8* ma;
+ int64* mb;
+ uint32 n;
+ ma=(int8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(int64)(*ma++);
+ }
+ break;
+ case TIFF_SHORT:
+ {
+ uint16* ma;
+ int64* mb;
+ uint32 n;
+ ma=(uint16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort(ma);
+ *mb++=(int64)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SSHORT:
+ {
+ int16* ma;
+ int64* mb;
+ uint32 n;
+ ma=(int16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort((uint16*)ma);
+ *mb++=(int64)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG:
+ {
+ uint32* ma;
+ int64* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ *mb++=(int64)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG:
+ {
+ int32* ma;
+ int64* mb;
+ uint32 n;
+ ma=(int32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)ma);
+ *mb++=(int64)(*ma++);
+ }
+ }
+ break;
+ }
+ _TIFFfree(origdata);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ *value=data;
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryFloatArray(TIFF* tif, TIFFDirEntry* direntry, float** value)
+{
+ enum TIFFReadDirEntryErr err;
+ uint32 count;
+ void* origdata;
+ float* data;
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ case TIFF_SBYTE:
+ case TIFF_SHORT:
+ case TIFF_SSHORT:
+ case TIFF_LONG:
+ case TIFF_SLONG:
+ case TIFF_LONG8:
+ case TIFF_SLONG8:
+ case TIFF_RATIONAL:
+ case TIFF_SRATIONAL:
+ case TIFF_FLOAT:
+ case TIFF_DOUBLE:
+ break;
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+ err=TIFFReadDirEntryArray(tif,direntry,&count,4,&origdata);
+ if ((err!=TIFFReadDirEntryErrOk)||(origdata==0))
+ {
+ *value=0;
+ return(err);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_FLOAT:
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfLong((uint32*)origdata,count);
+ TIFFCvtIEEEDoubleToNative(tif,count,(float*)origdata);
+ *value=(float*)origdata;
+ return(TIFFReadDirEntryErrOk);
+ }
+ data=(float*)_TIFFmalloc(count*sizeof(float));
+ if (data==0)
+ {
+ _TIFFfree(origdata);
+ return(TIFFReadDirEntryErrAlloc);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8* ma;
+ float* mb;
+ uint32 n;
+ ma=(uint8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(float)(*ma++);
+ }
+ break;
+ case TIFF_SBYTE:
+ {
+ int8* ma;
+ float* mb;
+ uint32 n;
+ ma=(int8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(float)(*ma++);
+ }
+ break;
+ case TIFF_SHORT:
+ {
+ uint16* ma;
+ float* mb;
+ uint32 n;
+ ma=(uint16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort(ma);
+ *mb++=(float)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SSHORT:
+ {
+ int16* ma;
+ float* mb;
+ uint32 n;
+ ma=(int16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort((uint16*)ma);
+ *mb++=(float)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG:
+ {
+ uint32* ma;
+ float* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ *mb++=(float)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG:
+ {
+ int32* ma;
+ float* mb;
+ uint32 n;
+ ma=(int32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)ma);
+ *mb++=(float)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG8:
+ {
+ uint64* ma;
+ float* mb;
+ uint32 n;
+ ma=(uint64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(ma);
+#if defined(__WIN32__) && (_MSC_VER < 1500)
+ /*
+ * XXX: MSVC 6.0 does not support
+ * conversion of 64-bit integers into
+ * floating point values.
+ */
+ *mb++ = _TIFFUInt64ToFloat(*ma++);
+#else
+ *mb++ = (float)(*ma++);
+#endif
+ }
+ }
+ break;
+ case TIFF_SLONG8:
+ {
+ int64* ma;
+ float* mb;
+ uint32 n;
+ ma=(int64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8((uint64*)ma);
+ *mb++=(float)(*ma++);
+ }
+ }
+ break;
+ case TIFF_RATIONAL:
+ {
+ uint32* ma;
+ uint32 maa;
+ uint32 mab;
+ float* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ maa=*ma++;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ mab=*ma++;
+ if (mab==0)
+ *mb++=0.0;
+ else
+ *mb++=(float)maa/(float)mab;
+ }
+ }
+ break;
+ case TIFF_SRATIONAL:
+ {
+ uint32* ma;
+ int32 maa;
+ uint32 mab;
+ float* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ maa=*(int32*)ma;
+ ma++;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ mab=*ma++;
+ if (mab==0)
+ *mb++=0.0;
+ else
+ *mb++=(float)maa/(float)mab;
+ }
+ }
+ break;
+ case TIFF_DOUBLE:
+ {
+ double* ma;
+ float* mb;
+ uint32 n;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfLong8((uint64*)origdata,count);
+ TIFFCvtIEEEDoubleToNative(tif,count,(double*)origdata);
+ ma=(double*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(float)(*ma++);
+ }
+ break;
+ }
+ _TIFFfree(origdata);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ *value=data;
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr
+TIFFReadDirEntryDoubleArray(TIFF* tif, TIFFDirEntry* direntry, double** value)
+{
+ enum TIFFReadDirEntryErr err;
+ uint32 count;
+ void* origdata;
+ double* data;
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ case TIFF_SBYTE:
+ case TIFF_SHORT:
+ case TIFF_SSHORT:
+ case TIFF_LONG:
+ case TIFF_SLONG:
+ case TIFF_LONG8:
+ case TIFF_SLONG8:
+ case TIFF_RATIONAL:
+ case TIFF_SRATIONAL:
+ case TIFF_FLOAT:
+ case TIFF_DOUBLE:
+ break;
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+ err=TIFFReadDirEntryArray(tif,direntry,&count,8,&origdata);
+ if ((err!=TIFFReadDirEntryErrOk)||(origdata==0))
+ {
+ *value=0;
+ return(err);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_DOUBLE:
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfLong8((uint64*)origdata,count);
+ TIFFCvtIEEEDoubleToNative(tif,count,(double*)origdata);
+ *value=(double*)origdata;
+ return(TIFFReadDirEntryErrOk);
+ }
+ data=(double*)_TIFFmalloc(count*sizeof(double));
+ if (data==0)
+ {
+ _TIFFfree(origdata);
+ return(TIFFReadDirEntryErrAlloc);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_BYTE:
+ {
+ uint8* ma;
+ double* mb;
+ uint32 n;
+ ma=(uint8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(double)(*ma++);
+ }
+ break;
+ case TIFF_SBYTE:
+ {
+ int8* ma;
+ double* mb;
+ uint32 n;
+ ma=(int8*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(double)(*ma++);
+ }
+ break;
+ case TIFF_SHORT:
+ {
+ uint16* ma;
+ double* mb;
+ uint32 n;
+ ma=(uint16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort(ma);
+ *mb++=(double)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SSHORT:
+ {
+ int16* ma;
+ double* mb;
+ uint32 n;
+ ma=(int16*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort((uint16*)ma);
+ *mb++=(double)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG:
+ {
+ uint32* ma;
+ double* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ *mb++=(double)(*ma++);
+ }
+ }
+ break;
+ case TIFF_SLONG:
+ {
+ int32* ma;
+ double* mb;
+ uint32 n;
+ ma=(int32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)ma);
+ *mb++=(double)(*ma++);
+ }
+ }
+ break;
+ case TIFF_LONG8:
+ {
+ uint64* ma;
+ double* mb;
+ uint32 n;
+ ma=(uint64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(ma);
+#if defined(__WIN32__) && (_MSC_VER < 1500)
+ /*
+ * XXX: MSVC 6.0 does not support
+ * conversion of 64-bit integers into
+ * floating point values.
+ */
+ *mb++ = _TIFFUInt64ToDouble(*ma++);
+#else
+ *mb++ = (double)(*ma++);
+#endif
+ }
+ }
+ break;
+ case TIFF_SLONG8:
+ {
+ int64* ma;
+ double* mb;
+ uint32 n;
+ ma=(int64*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8((uint64*)ma);
+ *mb++=(double)(*ma++);
+ }
+ }
+ break;
+ case TIFF_RATIONAL:
+ {
+ uint32* ma;
+ uint32 maa;
+ uint32 mab;
+ double* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ maa=*ma++;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ mab=*ma++;
+ if (mab==0)
+ *mb++=0.0;
+ else
+ *mb++=(double)maa/(double)mab;
+ }
+ }
+ break;
+ case TIFF_SRATIONAL:
+ {
+ uint32* ma;
+ int32 maa;
+ uint32 mab;
+ double* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ maa=*(int32*)ma;
+ ma++;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ mab=*ma++;
+ if (mab==0)
+ *mb++=0.0;
+ else
+ *mb++=(double)maa/(double)mab;
+ }
+ }
+ break;
+ case TIFF_FLOAT:
+ {
+ float* ma;
+ double* mb;
+ uint32 n;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfLong((uint32*)origdata,count);
+ TIFFCvtIEEEFloatToNative(tif,count,(float*)origdata);
+ ma=(float*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ *mb++=(double)(*ma++);
+ }
+ break;
+ }
+ _TIFFfree(origdata);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ *value=data;
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryIfd8Array(TIFF* tif, TIFFDirEntry* direntry, uint64** value)
+{
+ enum TIFFReadDirEntryErr err;
+ uint32 count;
+ void* origdata;
+ uint64* data;
+ switch (direntry->tdir_type)
+ {
+ case TIFF_LONG:
+ case TIFF_LONG8:
+ case TIFF_IFD:
+ case TIFF_IFD8:
+ break;
+ default:
+ return(TIFFReadDirEntryErrType);
+ }
+ err=TIFFReadDirEntryArray(tif,direntry,&count,8,&origdata);
+ if ((err!=TIFFReadDirEntryErrOk)||(origdata==0))
+ {
+ *value=0;
+ return(err);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_LONG8:
+ case TIFF_IFD8:
+ *value=(uint64*)origdata;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfLong8(*value,count);
+ return(TIFFReadDirEntryErrOk);
+ }
+ data=(uint64*)_TIFFmalloc(count*8);
+ if (data==0)
+ {
+ _TIFFfree(origdata);
+ return(TIFFReadDirEntryErrAlloc);
+ }
+ switch (direntry->tdir_type)
+ {
+ case TIFF_LONG:
+ case TIFF_IFD:
+ {
+ uint32* ma;
+ uint64* mb;
+ uint32 n;
+ ma=(uint32*)origdata;
+ mb=data;
+ for (n=0; n<count; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(ma);
+ *mb++=(uint64)(*ma++);
+ }
+ }
+ break;
+ }
+ _TIFFfree(origdata);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ _TIFFfree(data);
+ return(err);
+ }
+ *value=data;
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryPersampleShort(TIFF* tif, TIFFDirEntry* direntry, uint16* value)
+{
+ enum TIFFReadDirEntryErr err;
+ uint16* m;
+ uint16* na;
+ uint16 nb;
+ if (direntry->tdir_count<(uint64)tif->tif_dir.td_samplesperpixel)
+ return(TIFFReadDirEntryErrCount);
+ err=TIFFReadDirEntryShortArray(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ na=m;
+ nb=tif->tif_dir.td_samplesperpixel;
+ *value=*na++;
+ nb--;
+ while (nb>0)
+ {
+ if (*na++!=*value)
+ {
+ err=TIFFReadDirEntryErrPsdif;
+ break;
+ }
+ nb--;
+ }
+ _TIFFfree(m);
+ return(err);
+}
+
+#if 0
+static enum TIFFReadDirEntryErr TIFFReadDirEntryPersampleDouble(TIFF* tif, TIFFDirEntry* direntry, double* value)
+{
+ enum TIFFReadDirEntryErr err;
+ double* m;
+ double* na;
+ uint16 nb;
+ if (direntry->tdir_count<(uint64)tif->tif_dir.td_samplesperpixel)
+ return(TIFFReadDirEntryErrCount);
+ err=TIFFReadDirEntryDoubleArray(tif,direntry,&m);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ na=m;
+ nb=tif->tif_dir.td_samplesperpixel;
+ *value=*na++;
+ nb--;
+ while (nb>0)
+ {
+ if (*na++!=*value)
+ {
+ err=TIFFReadDirEntryErrPsdif;
+ break;
+ }
+ nb--;
+ }
+ _TIFFfree(m);
+ return(err);
+}
+#endif
+
+static void TIFFReadDirEntryCheckedByte(TIFF* tif, TIFFDirEntry* direntry, uint8* value)
+{
+ (void) tif;
+ *value=*(uint8*)(&direntry->tdir_offset);
+}
+
+static void TIFFReadDirEntryCheckedSbyte(TIFF* tif, TIFFDirEntry* direntry, int8* value)
+{
+ (void) tif;
+ *value=*(int8*)(&direntry->tdir_offset);
+}
+
+static void TIFFReadDirEntryCheckedShort(TIFF* tif, TIFFDirEntry* direntry, uint16* value)
+{
+ *value = direntry->tdir_offset.toff_short;
+ /* *value=*(uint16*)(&direntry->tdir_offset); */
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort(value);
+}
+
+static void TIFFReadDirEntryCheckedSshort(TIFF* tif, TIFFDirEntry* direntry, int16* value)
+{
+ *value=*(int16*)(&direntry->tdir_offset);
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort((uint16*)value);
+}
+
+static void TIFFReadDirEntryCheckedLong(TIFF* tif, TIFFDirEntry* direntry, uint32* value)
+{
+ *value=*(uint32*)(&direntry->tdir_offset);
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(value);
+}
+
+static void TIFFReadDirEntryCheckedSlong(TIFF* tif, TIFFDirEntry* direntry, int32* value)
+{
+ *value=*(int32*)(&direntry->tdir_offset);
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)value);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedLong8(TIFF* tif, TIFFDirEntry* direntry, uint64* value)
+{
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ enum TIFFReadDirEntryErr err;
+ uint32 offset = direntry->tdir_offset.toff_long;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(&offset);
+ err=TIFFReadDirEntryData(tif,offset,8,value);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ }
+ else
+ *value = direntry->tdir_offset.toff_long8;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(value);
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSlong8(TIFF* tif, TIFFDirEntry* direntry, int64* value)
+{
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ enum TIFFReadDirEntryErr err;
+ uint32 offset = direntry->tdir_offset.toff_long;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(&offset);
+ err=TIFFReadDirEntryData(tif,offset,8,value);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ }
+ else
+ *value=*(int64*)(&direntry->tdir_offset);
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8((uint64*)value);
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedRational(TIFF* tif, TIFFDirEntry* direntry, double* value)
+{
+ UInt64Aligned_t m;
+
+ assert(sizeof(double)==8);
+ assert(sizeof(uint64)==8);
+ assert(sizeof(uint32)==4);
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ enum TIFFReadDirEntryErr err;
+ uint32 offset = direntry->tdir_offset.toff_long;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(&offset);
+ err=TIFFReadDirEntryData(tif,offset,8,m.i);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ }
+ else
+ m.l = direntry->tdir_offset.toff_long8;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfLong(m.i,2);
+ if (m.i[0]==0)
+ *value=0.0;
+ else
+ *value=(double)m.i[0]/(double)m.i[1];
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSrational(TIFF* tif, TIFFDirEntry* direntry, double* value)
+{
+ UInt64Aligned_t m;
+ assert(sizeof(double)==8);
+ assert(sizeof(uint64)==8);
+ assert(sizeof(int32)==4);
+ assert(sizeof(uint32)==4);
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ enum TIFFReadDirEntryErr err;
+ uint32 offset = direntry->tdir_offset.toff_long;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(&offset);
+ err=TIFFReadDirEntryData(tif,offset,8,m.i);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ }
+ else
+ m.l=direntry->tdir_offset.toff_long8;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfLong(m.i,2);
+ if ((int32)m.i[0]==0)
+ *value=0.0;
+ else
+ *value=(double)((int32)m.i[0])/(double)m.i[1];
+ return(TIFFReadDirEntryErrOk);
+}
+
+static void TIFFReadDirEntryCheckedFloat(TIFF* tif, TIFFDirEntry* direntry, float* value)
+{
+ union
+ {
+ float f;
+ uint32 i;
+ } float_union;
+ assert(sizeof(float)==4);
+ assert(sizeof(uint32)==4);
+ assert(sizeof(float_union)==4);
+ float_union.i=*(uint32*)(&direntry->tdir_offset);
+ *value=float_union.f;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)value);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedDouble(TIFF* tif, TIFFDirEntry* direntry, double* value)
+{
+ assert(sizeof(double)==8);
+ assert(sizeof(uint64)==8);
+ assert(sizeof(UInt64Aligned_t)==8);
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ enum TIFFReadDirEntryErr err;
+ uint32 offset = direntry->tdir_offset.toff_long;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(&offset);
+ err=TIFFReadDirEntryData(tif,offset,8,value);
+ if (err!=TIFFReadDirEntryErrOk)
+ return(err);
+ }
+ else
+ {
+ UInt64Aligned_t uint64_union;
+ uint64_union.l=direntry->tdir_offset.toff_long8;
+ *value=uint64_union.d;
+ }
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8((uint64*)value);
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSbyte(int8 value)
+{
+ if (value<0)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteShort(uint16 value)
+{
+ if (value>0xFF)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSshort(int16 value)
+{
+ if ((value<0)||(value>0xFF))
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteLong(uint32 value)
+{
+ if (value>0xFF)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSlong(int32 value)
+{
+ if ((value<0)||(value>0xFF))
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteLong8(uint64 value)
+{
+ if (value>0xFF)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSlong8(int64 value)
+{
+ if ((value<0)||(value>0xFF))
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteByte(uint8 value)
+{
+ if (value>0x7F)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteShort(uint16 value)
+{
+ if (value>0x7F)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSshort(int16 value)
+{
+ if ((value<-0x80)||(value>0x7F))
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteLong(uint32 value)
+{
+ if (value>0x7F)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSlong(int32 value)
+{
+ if ((value<-0x80)||(value>0x7F))
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteLong8(uint64 value)
+{
+ if (value>0x7F)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSlong8(int64 value)
+{
+ if ((value<-0x80)||(value>0x7F))
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSbyte(int8 value)
+{
+ if (value<0)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSshort(int16 value)
+{
+ if (value<0)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortLong(uint32 value)
+{
+ if (value>0xFFFF)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSlong(int32 value)
+{
+ if ((value<0)||(value>0xFFFF))
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortLong8(uint64 value)
+{
+ if (value>0xFFFF)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSlong8(int64 value)
+{
+ if ((value<0)||(value>0xFFFF))
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortShort(uint16 value)
+{
+ if (value>0x7FFF)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortLong(uint32 value)
+{
+ if (value>0x7FFF)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortSlong(int32 value)
+{
+ if ((value<-0x8000)||(value>0x7FFF))
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortLong8(uint64 value)
+{
+ if (value>0x7FFF)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortSlong8(int64 value)
+{
+ if ((value<-0x8000)||(value>0x7FFF))
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSbyte(int8 value)
+{
+ if (value<0)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSshort(int16 value)
+{
+ if (value<0)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSlong(int32 value)
+{
+ if (value<0)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+/*
+ * Largest 32-bit unsigned integer value.
+ */
+#if defined(__WIN32__) && defined(_MSC_VER)
+# define TIFF_UINT32_MAX 0xFFFFFFFFI64
+#else
+# define TIFF_UINT32_MAX 0xFFFFFFFFLL
+#endif
+
+static enum TIFFReadDirEntryErr
+TIFFReadDirEntryCheckRangeLongLong8(uint64 value)
+{
+ if (value > TIFF_UINT32_MAX)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr
+TIFFReadDirEntryCheckRangeLongSlong8(int64 value)
+{
+ if ((value<0) || (value > TIFF_UINT32_MAX))
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+#undef TIFF_UINT32_MAX
+
+static enum TIFFReadDirEntryErr
+TIFFReadDirEntryCheckRangeSlongLong(uint32 value)
+{
+ if (value > 0x7FFFFFFFUL)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr
+TIFFReadDirEntryCheckRangeSlongLong8(uint64 value)
+{
+ if (value > 0x7FFFFFFFUL)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr
+TIFFReadDirEntryCheckRangeSlongSlong8(int64 value)
+{
+ if ((value < 0L-0x80000000L) || (value > 0x7FFFFFFFL))
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr
+TIFFReadDirEntryCheckRangeLong8Sbyte(int8 value)
+{
+ if (value < 0)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr
+TIFFReadDirEntryCheckRangeLong8Sshort(int16 value)
+{
+ if (value < 0)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr
+TIFFReadDirEntryCheckRangeLong8Slong(int32 value)
+{
+ if (value < 0)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+static enum TIFFReadDirEntryErr
+TIFFReadDirEntryCheckRangeLong8Slong8(int64 value)
+{
+ if (value < 0)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+/*
+ * Largest 64-bit signed integer value.
+ */
+#if defined(__WIN32__) && defined(_MSC_VER)
+# define TIFF_INT64_MAX 0x7FFFFFFFFFFFFFFFI64
+#else
+# define TIFF_INT64_MAX 0x7FFFFFFFFFFFFFFFLL
+#endif
+
+static enum TIFFReadDirEntryErr
+TIFFReadDirEntryCheckRangeSlong8Long8(uint64 value)
+{
+ if (value > TIFF_INT64_MAX)
+ return(TIFFReadDirEntryErrRange);
+ else
+ return(TIFFReadDirEntryErrOk);
+}
+
+#undef TIFF_INT64_MAX
+
+static enum TIFFReadDirEntryErr
+TIFFReadDirEntryData(TIFF* tif, uint64 offset, tmsize_t size, void* dest)
+{
+ assert(size>0);
+ if (!isMapped(tif)) {
+ if (!SeekOK(tif,offset))
+ return(TIFFReadDirEntryErrIo);
+ if (!ReadOK(tif,dest,size))
+ return(TIFFReadDirEntryErrIo);
+ } else {
+ size_t ma,mb;
+ ma=(size_t)offset;
+ mb=ma+size;
+ if (((uint64)ma!=offset)
+ || (mb < ma)
+ || (mb - ma != (size_t) size)
+ || (mb < (size_t)size)
+ || (mb > (size_t)tif->tif_size)
+ )
+ return(TIFFReadDirEntryErrIo);
+ _TIFFmemcpy(dest,tif->tif_base+ma,size);
+ }
+ return(TIFFReadDirEntryErrOk);
+}
+
+static void TIFFReadDirEntryOutputErr(TIFF* tif, enum TIFFReadDirEntryErr err, const char* module, const char* tagname, int recover)
+{
+ if (!recover) {
+ switch (err) {
+ case TIFFReadDirEntryErrCount:
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Incorrect count for \"%s\"",
+ tagname);
+ break;
+ case TIFFReadDirEntryErrType:
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Incompatible type for \"%s\"",
+ tagname);
+ break;
+ case TIFFReadDirEntryErrIo:
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "IO error during reading of \"%s\"",
+ tagname);
+ break;
+ case TIFFReadDirEntryErrRange:
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Incorrect value for \"%s\"",
+ tagname);
+ break;
+ case TIFFReadDirEntryErrPsdif:
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Cannot handle different values per sample for \"%s\"",
+ tagname);
+ break;
+ case TIFFReadDirEntryErrSizesan:
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Sanity check on size of \"%s\" value failed",
+ tagname);
+ break;
+ case TIFFReadDirEntryErrAlloc:
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Out of memory reading of \"%s\"",
+ tagname);
+ break;
+ default:
+ assert(0); /* we should never get here */
+ break;
+ }
+ } else {
+ switch (err) {
+ case TIFFReadDirEntryErrCount:
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Incorrect count for \"%s\"; tag ignored",
+ tagname);
+ break;
+ case TIFFReadDirEntryErrType:
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Incompatible type for \"%s\"; tag ignored",
+ tagname);
+ break;
+ case TIFFReadDirEntryErrIo:
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "IO error during reading of \"%s\"; tag ignored",
+ tagname);
+ break;
+ case TIFFReadDirEntryErrRange:
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Incorrect value for \"%s\"; tag ignored",
+ tagname);
+ break;
+ case TIFFReadDirEntryErrPsdif:
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Cannot handle different values per sample for \"%s\"; tag ignored",
+ tagname);
+ break;
+ case TIFFReadDirEntryErrSizesan:
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Sanity check on size of \"%s\" value failed; tag ignored",
+ tagname);
+ break;
+ case TIFFReadDirEntryErrAlloc:
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Out of memory reading of \"%s\"; tag ignored",
+ tagname);
+ break;
+ default:
+ assert(0); /* we should never get here */
+ break;
+ }
+ }
+}
+
+/*
+ * Read the next TIFF directory from a file and convert it to the internal
+ * format. We read directories sequentially.
+ */
+int
+TIFFReadDirectory(TIFF* tif)
+{
+ static const char module[] = "TIFFReadDirectory";
+ TIFFDirEntry* dir;
+ uint16 dircount;
+ TIFFDirEntry* dp;
+ uint16 di;
+ const TIFFField* fip;
+ uint32 fii=FAILED_FII;
+ toff_t nextdiroff;
+ int bitspersample_read = FALSE;
+
+ tif->tif_diroff=tif->tif_nextdiroff;
+ if (!TIFFCheckDirOffset(tif,tif->tif_nextdiroff))
+ return 0; /* last offset or bad offset (IFD looping) */
+ (*tif->tif_cleanup)(tif); /* cleanup any previous compression state */
+ tif->tif_curdir++;
+ nextdiroff = tif->tif_nextdiroff;
+ dircount=TIFFFetchDirectory(tif,nextdiroff,&dir,&tif->tif_nextdiroff);
+ if (!dircount)
+ {
+ TIFFErrorExt(tif->tif_clientdata,module,
+ "Failed to read directory at offset " TIFF_UINT64_FORMAT,nextdiroff);
+ return 0;
+ }
+ TIFFReadDirectoryCheckOrder(tif,dir,dircount);
+
+ /*
+ * Mark duplicates of any tag to be ignored (bugzilla 1994)
+ * to avoid certain pathological problems.
+ */
+ {
+ TIFFDirEntry* ma;
+ uint16 mb;
+ for (ma=dir, mb=0; mb<dircount; ma++, mb++)
+ {
+ TIFFDirEntry* na;
+ uint16 nb;
+ for (na=ma+1, nb=mb+1; nb<dircount; na++, nb++)
+ {
+ if (ma->tdir_tag==na->tdir_tag)
+ na->tdir_tag=IGNORE;
+ }
+ }
+ }
+
+ tif->tif_flags &= ~TIFF_BEENWRITING; /* reset before new dir */
+ tif->tif_flags &= ~TIFF_BUF4WRITE; /* reset before new dir */
+ /* free any old stuff and reinit */
+ TIFFFreeDirectory(tif);
+ TIFFDefaultDirectory(tif);
+ /*
+ * Electronic Arts writes gray-scale TIFF files
+ * without a PlanarConfiguration directory entry.
+ * Thus we setup a default value here, even though
+ * the TIFF spec says there is no default value.
+ */
+ TIFFSetField(tif,TIFFTAG_PLANARCONFIG,PLANARCONFIG_CONTIG);
+ /*
+ * Setup default value and then make a pass over
+ * the fields to check type and tag information,
+ * and to extract info required to size data
+ * structures. A second pass is made afterwards
+ * to read in everthing not taken in the first pass.
+ * But we must process the Compression tag first
+ * in order to merge in codec-private tag definitions (otherwise
+ * we may get complaints about unknown tags). However, the
+ * Compression tag may be dependent on the SamplesPerPixel
+ * tag value because older TIFF specs permited Compression
+ * to be written as a SamplesPerPixel-count tag entry.
+ * Thus if we don't first figure out the correct SamplesPerPixel
+ * tag value then we may end up ignoring the Compression tag
+ * value because it has an incorrect count value (if the
+ * true value of SamplesPerPixel is not 1).
+ */
+ dp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_SAMPLESPERPIXEL);
+ if (dp)
+ {
+ if (!TIFFFetchNormalTag(tif,dp,0))
+ goto bad;
+ dp->tdir_tag=IGNORE;
+ }
+ dp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_COMPRESSION);
+ if (dp)
+ {
+ /*
+ * The 5.0 spec says the Compression tag has one value, while
+ * earlier specs say it has one value per sample. Because of
+ * this, we accept the tag if one value is supplied with either
+ * count.
+ */
+ uint16 value;
+ enum TIFFReadDirEntryErr err;
+ err=TIFFReadDirEntryShort(tif,dp,&value);
+ if (err==TIFFReadDirEntryErrCount)
+ err=TIFFReadDirEntryPersampleShort(tif,dp,&value);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ TIFFReadDirEntryOutputErr(tif,err,module,"Compression",0);
+ goto bad;
+ }
+ if (!TIFFSetField(tif,TIFFTAG_COMPRESSION,value))
+ goto bad;
+ dp->tdir_tag=IGNORE;
+ }
+ else
+ {
+ if (!TIFFSetField(tif,TIFFTAG_COMPRESSION,COMPRESSION_NONE))
+ goto bad;
+ }
+ /*
+ * First real pass over the directory.
+ */
+ for (di=0, dp=dir; di<dircount; di++, dp++)
+ {
+ if (dp->tdir_tag!=IGNORE)
+ {
+ TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii);
+ if (fii == FAILED_FII)
+ {
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Unknown field with tag %d (0x%x) encountered",
+ dp->tdir_tag,dp->tdir_tag);
+ /* the following knowingly leaks the
+ anonymous field structure */
+ if (!_TIFFMergeFields(tif,
+ _TIFFCreateAnonField(tif,
+ dp->tdir_tag,
+ (TIFFDataType) dp->tdir_type),
+ 1)) {
+ TIFFWarningExt(tif->tif_clientdata,
+ module,
+ "Registering anonymous field with tag %d (0x%x) failed",
+ dp->tdir_tag,
+ dp->tdir_tag);
+ dp->tdir_tag=IGNORE;
+ } else {
+ TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii);
+ assert(fii != FAILED_FII);
+ }
+ }
+ }
+ if (dp->tdir_tag!=IGNORE)
+ {
+ fip=tif->tif_fields[fii];
+ if (fip->field_bit==FIELD_IGNORE)
+ dp->tdir_tag=IGNORE;
+ else
+ {
+ switch (dp->tdir_tag)
+ {
+ case TIFFTAG_STRIPOFFSETS:
+ case TIFFTAG_STRIPBYTECOUNTS:
+ case TIFFTAG_TILEOFFSETS:
+ case TIFFTAG_TILEBYTECOUNTS:
+ TIFFSetFieldBit(tif,fip->field_bit);
+ break;
+ case TIFFTAG_IMAGEWIDTH:
+ case TIFFTAG_IMAGELENGTH:
+ case TIFFTAG_IMAGEDEPTH:
+ case TIFFTAG_TILELENGTH:
+ case TIFFTAG_TILEWIDTH:
+ case TIFFTAG_TILEDEPTH:
+ case TIFFTAG_PLANARCONFIG:
+ case TIFFTAG_ROWSPERSTRIP:
+ case TIFFTAG_EXTRASAMPLES:
+ if (!TIFFFetchNormalTag(tif,dp,0))
+ goto bad;
+ dp->tdir_tag=IGNORE;
+ break;
+ }
+ }
+ }
+ }
+ /*
+ * XXX: OJPEG hack.
+ * If a) compression is OJPEG, b) planarconfig tag says it's separate,
+ * c) strip offsets/bytecounts tag are both present and
+ * d) both contain exactly one value, then we consistently find
+ * that the buggy implementation of the buggy compression scheme
+ * matches contig planarconfig best. So we 'fix-up' the tag here
+ */
+ if ((tif->tif_dir.td_compression==COMPRESSION_OJPEG)&&
+ (tif->tif_dir.td_planarconfig==PLANARCONFIG_SEPARATE))
+ {
+ if (!_TIFFFillStriles(tif))
+ goto bad;
+ dp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_STRIPOFFSETS);
+ if ((dp!=0)&&(dp->tdir_count==1))
+ {
+ dp=TIFFReadDirectoryFindEntry(tif,dir,dircount,
+ TIFFTAG_STRIPBYTECOUNTS);
+ if ((dp!=0)&&(dp->tdir_count==1))
+ {
+ tif->tif_dir.td_planarconfig=PLANARCONFIG_CONTIG;
+ TIFFWarningExt(tif->tif_clientdata,module,
+ "Planarconfig tag value assumed incorrect, "
+ "assuming data is contig instead of chunky");
+ }
+ }
+ }
+ /*
+ * Allocate directory structure and setup defaults.
+ */
+ if (!TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS))
+ {
+ MissingRequired(tif,"ImageLength");
+ goto bad;
+ }
+ /*
+ * Setup appropriate structures (by strip or by tile)
+ */
+ if (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) {
+ tif->tif_dir.td_nstrips = TIFFNumberOfStrips(tif);
+ tif->tif_dir.td_tilewidth = tif->tif_dir.td_imagewidth;
+ tif->tif_dir.td_tilelength = tif->tif_dir.td_rowsperstrip;
+ tif->tif_dir.td_tiledepth = tif->tif_dir.td_imagedepth;
+ tif->tif_flags &= ~TIFF_ISTILED;
+ } else {
+ tif->tif_dir.td_nstrips = TIFFNumberOfTiles(tif);
+ tif->tif_flags |= TIFF_ISTILED;
+ }
+ if (!tif->tif_dir.td_nstrips) {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Cannot handle zero number of %s",
+ isTiled(tif) ? "tiles" : "strips");
+ goto bad;
+ }
+ tif->tif_dir.td_stripsperimage = tif->tif_dir.td_nstrips;
+ if (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE)
+ tif->tif_dir.td_stripsperimage /= tif->tif_dir.td_samplesperpixel;
+ if (!TIFFFieldSet(tif, FIELD_STRIPOFFSETS)) {
+ if ((tif->tif_dir.td_compression==COMPRESSION_OJPEG) &&
+ (isTiled(tif)==0) &&
+ (tif->tif_dir.td_nstrips==1)) {
+ /*
+ * 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.
+ */
+ TIFFSetFieldBit(tif, FIELD_STRIPOFFSETS);
+ } else {
+ MissingRequired(tif,
+ isTiled(tif) ? "TileOffsets" : "StripOffsets");
+ goto bad;
+ }
+ }
+ /*
+ * Second pass: extract other information.
+ */
+ for (di=0, dp=dir; di<dircount; di++, dp++)
+ {
+ switch (dp->tdir_tag)
+ {
+ case IGNORE:
+ break;
+ case TIFFTAG_MINSAMPLEVALUE:
+ case TIFFTAG_MAXSAMPLEVALUE:
+ case TIFFTAG_BITSPERSAMPLE:
+ case TIFFTAG_DATATYPE:
+ case TIFFTAG_SAMPLEFORMAT:
+ /*
+ * The MinSampleValue, MaxSampleValue, BitsPerSample
+ * DataType and SampleFormat tags are supposed to be
+ * written as one value/sample, but some vendors
+ * incorrectly write one value only -- so we accept
+ * that as well (yech). Other vendors write correct
+ * value for NumberOfSamples, but incorrect one for
+ * BitsPerSample and friends, and we will read this
+ * too.
+ */
+ {
+ uint16 value;
+ enum TIFFReadDirEntryErr err;
+ err=TIFFReadDirEntryShort(tif,dp,&value);
+ if (err==TIFFReadDirEntryErrCount)
+ err=TIFFReadDirEntryPersampleShort(tif,dp,&value);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ fip = TIFFFieldWithTag(tif,dp->tdir_tag);
+ TIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name : "unknown tagname",0);
+ goto bad;
+ }
+ if (!TIFFSetField(tif,dp->tdir_tag,value))
+ goto bad;
+ if( dp->tdir_tag == TIFFTAG_BITSPERSAMPLE )
+ bitspersample_read = TRUE;
+ }
+ break;
+ case TIFFTAG_SMINSAMPLEVALUE:
+ case TIFFTAG_SMAXSAMPLEVALUE:
+ {
+
+ double *data;
+ enum TIFFReadDirEntryErr err;
+ uint32 saved_flags;
+ int m;
+ if (dp->tdir_count != (uint64)tif->tif_dir.td_samplesperpixel)
+ err = TIFFReadDirEntryErrCount;
+ else
+ err = TIFFReadDirEntryDoubleArray(tif, dp, &data);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ fip = TIFFFieldWithTag(tif,dp->tdir_tag);
+ TIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name : "unknown tagname",0);
+ goto bad;
+ }
+ saved_flags = tif->tif_flags;
+ tif->tif_flags |= TIFF_PERSAMPLE;
+ m = TIFFSetField(tif,dp->tdir_tag,data);
+ tif->tif_flags = saved_flags;
+ _TIFFfree(data);
+ if (!m)
+ goto bad;
+ }
+ break;
+ case TIFFTAG_STRIPOFFSETS:
+ case TIFFTAG_TILEOFFSETS:
+#if defined(DEFER_STRILE_LOAD)
+ _TIFFmemcpy( &(tif->tif_dir.td_stripoffset_entry),
+ dp, sizeof(TIFFDirEntry) );
+#else
+ if (!TIFFFetchStripThing(tif,dp,tif->tif_dir.td_nstrips,&tif->tif_dir.td_stripoffset))
+ goto bad;
+#endif
+ break;
+ case TIFFTAG_STRIPBYTECOUNTS:
+ case TIFFTAG_TILEBYTECOUNTS:
+#if defined(DEFER_STRILE_LOAD)
+ _TIFFmemcpy( &(tif->tif_dir.td_stripbytecount_entry),
+ dp, sizeof(TIFFDirEntry) );
+#else
+ if (!TIFFFetchStripThing(tif,dp,tif->tif_dir.td_nstrips,&tif->tif_dir.td_stripbytecount))
+ goto bad;
+#endif
+ break;
+ case TIFFTAG_COLORMAP:
+ case TIFFTAG_TRANSFERFUNCTION:
+ {
+ enum TIFFReadDirEntryErr err;
+ uint32 countpersample;
+ uint32 countrequired;
+ uint32 incrementpersample;
+ uint16* value=NULL;
+ /* It would be dangerous to instanciate those tag values */
+ /* since if td_bitspersample has not yet been read (due to */
+ /* unordered tags), it could be read afterwards with a */
+ /* values greater than the default one (1), which may cause */
+ /* crashes in user code */
+ if( !bitspersample_read )
+ {
+ fip = TIFFFieldWithTag(tif,dp->tdir_tag);
+ TIFFWarningExt(tif->tif_clientdata,module,
+ "Ignoring %s since BitsPerSample tag not found",
+ fip ? fip->field_name : "unknown tagname");
+ continue;
+ }
+ countpersample=(1L<<tif->tif_dir.td_bitspersample);
+ if ((dp->tdir_tag==TIFFTAG_TRANSFERFUNCTION)&&(dp->tdir_count==(uint64)countpersample))
+ {
+ countrequired=countpersample;
+ incrementpersample=0;
+ }
+ else
+ {
+ countrequired=3*countpersample;
+ incrementpersample=countpersample;
+ }
+ if (dp->tdir_count!=(uint64)countrequired)
+ err=TIFFReadDirEntryErrCount;
+ else
+ err=TIFFReadDirEntryShortArray(tif,dp,&value);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ fip = TIFFFieldWithTag(tif,dp->tdir_tag);
+ TIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name : "unknown tagname",1);
+ }
+ else
+ {
+ TIFFSetField(tif,dp->tdir_tag,value,value+incrementpersample,value+2*incrementpersample);
+ _TIFFfree(value);
+ }
+ }
+ break;
+/* BEGIN REV 4.0 COMPATIBILITY */
+ case TIFFTAG_OSUBFILETYPE:
+ {
+ uint16 valueo;
+ uint32 value;
+ if (TIFFReadDirEntryShort(tif,dp,&valueo)==TIFFReadDirEntryErrOk)
+ {
+ switch (valueo)
+ {
+ case OFILETYPE_REDUCEDIMAGE: value=FILETYPE_REDUCEDIMAGE; break;
+ case OFILETYPE_PAGE: value=FILETYPE_PAGE; break;
+ default: value=0; break;
+ }
+ if (value!=0)
+ TIFFSetField(tif,TIFFTAG_SUBFILETYPE,value);
+ }
+ }
+ break;
+/* END REV 4.0 COMPATIBILITY */
+ default:
+ (void) TIFFFetchNormalTag(tif, dp, TRUE);
+ break;
+ }
+ }
+ /*
+ * OJPEG hack:
+ * - If a) compression is OJPEG, and b) photometric tag is missing,
+ * then we consistently find that photometric should be YCbCr
+ * - If a) compression is OJPEG, and b) photometric tag says it's RGB,
+ * then we consistently find that the buggy implementation of the
+ * buggy compression scheme matches photometric YCbCr instead.
+ * - If a) compression is OJPEG, and b) bitspersample tag is missing,
+ * then we consistently find bitspersample should be 8.
+ * - If a) compression is OJPEG, b) samplesperpixel tag is missing,
+ * and c) photometric is RGB or YCbCr, then we consistently find
+ * samplesperpixel should be 3
+ * - If a) compression is OJPEG, b) samplesperpixel tag is missing,
+ * and c) photometric is MINISWHITE or MINISBLACK, then we consistently
+ * find samplesperpixel should be 3
+ */
+ if (tif->tif_dir.td_compression==COMPRESSION_OJPEG)
+ {
+ if (!TIFFFieldSet(tif,FIELD_PHOTOMETRIC))
+ {
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Photometric tag is missing, assuming data is YCbCr");
+ if (!TIFFSetField(tif,TIFFTAG_PHOTOMETRIC,PHOTOMETRIC_YCBCR))
+ goto bad;
+ }
+ else if (tif->tif_dir.td_photometric==PHOTOMETRIC_RGB)
+ {
+ tif->tif_dir.td_photometric=PHOTOMETRIC_YCBCR;
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Photometric tag value assumed incorrect, "
+ "assuming data is YCbCr instead of RGB");
+ }
+ if (!TIFFFieldSet(tif,FIELD_BITSPERSAMPLE))
+ {
+ TIFFWarningExt(tif->tif_clientdata,module,
+ "BitsPerSample tag is missing, assuming 8 bits per sample");
+ if (!TIFFSetField(tif,TIFFTAG_BITSPERSAMPLE,8))
+ goto bad;
+ }
+ if (!TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL))
+ {
+ if (tif->tif_dir.td_photometric==PHOTOMETRIC_RGB)
+ {
+ TIFFWarningExt(tif->tif_clientdata,module,
+ "SamplesPerPixel tag is missing, "
+ "assuming correct SamplesPerPixel value is 3");
+ if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,3))
+ goto bad;
+ }
+ if (tif->tif_dir.td_photometric==PHOTOMETRIC_YCBCR)
+ {
+ TIFFWarningExt(tif->tif_clientdata,module,
+ "SamplesPerPixel tag is missing, "
+ "applying correct SamplesPerPixel value of 3");
+ if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,3))
+ goto bad;
+ }
+ else if ((tif->tif_dir.td_photometric==PHOTOMETRIC_MINISWHITE)
+ || (tif->tif_dir.td_photometric==PHOTOMETRIC_MINISBLACK))
+ {
+ /*
+ * SamplesPerPixel tag is missing, but is not required
+ * by spec. Assume correct SamplesPerPixel value of 1.
+ */
+ if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,1))
+ goto bad;
+ }
+ }
+ }
+ /*
+ * Verify Palette image has a Colormap.
+ */
+ if (tif->tif_dir.td_photometric == PHOTOMETRIC_PALETTE &&
+ !TIFFFieldSet(tif, FIELD_COLORMAP)) {
+ if ( tif->tif_dir.td_bitspersample>=8 && tif->tif_dir.td_samplesperpixel==3)
+ tif->tif_dir.td_photometric = PHOTOMETRIC_RGB;
+ else if (tif->tif_dir.td_bitspersample>=8)
+ tif->tif_dir.td_photometric = PHOTOMETRIC_MINISBLACK;
+ else {
+ MissingRequired(tif, "Colormap");
+ goto bad;
+ }
+ }
+ /*
+ * OJPEG hack:
+ * We do no further messing with strip/tile offsets/bytecounts in OJPEG
+ * TIFFs
+ */
+ if (tif->tif_dir.td_compression!=COMPRESSION_OJPEG)
+ {
+ /*
+ * Attempt to deal with a missing StripByteCounts tag.
+ */
+ if (!TIFFFieldSet(tif, FIELD_STRIPBYTECOUNTS)) {
+ /*
+ * Some manufacturers violate the spec by not giving
+ * the size of the strips. In this case, assume there
+ * is one uncompressed strip of data.
+ */
+ if ((tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG &&
+ tif->tif_dir.td_nstrips > 1) ||
+ (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE &&
+ tif->tif_dir.td_nstrips != (uint32)tif->tif_dir.td_samplesperpixel)) {
+ MissingRequired(tif, "StripByteCounts");
+ goto bad;
+ }
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "TIFF directory is missing required "
+ "\"StripByteCounts\" field, calculating from imagelength");
+ if (EstimateStripByteCounts(tif, dir, dircount) < 0)
+ goto bad;
+ /*
+ * Assume we have wrong StripByteCount value (in case
+ * of single strip) in following cases:
+ * - it is equal to zero along with StripOffset;
+ * - it is larger than file itself (in case of uncompressed
+ * image);
+ * - it is smaller than the size of the bytes per row
+ * multiplied on the number of rows. The last case should
+ * not be checked in the case of writing new image,
+ * because we may do not know the exact strip size
+ * until the whole image will be written and directory
+ * dumped out.
+ */
+ #define BYTECOUNTLOOKSBAD \
+ ( (tif->tif_dir.td_stripbytecount[0] == 0 && tif->tif_dir.td_stripoffset[0] != 0) || \
+ (tif->tif_dir.td_compression == COMPRESSION_NONE && \
+ tif->tif_dir.td_stripbytecount[0] > TIFFGetFileSize(tif) - tif->tif_dir.td_stripoffset[0]) || \
+ (tif->tif_mode == O_RDONLY && \
+ tif->tif_dir.td_compression == COMPRESSION_NONE && \
+ tif->tif_dir.td_stripbytecount[0] < TIFFScanlineSize64(tif) * tif->tif_dir.td_imagelength) )
+
+ } else if (tif->tif_dir.td_nstrips == 1
+ && _TIFFFillStriles(tif)
+ && tif->tif_dir.td_stripoffset[0] != 0
+ && BYTECOUNTLOOKSBAD) {
+ /*
+ * XXX: Plexus (and others) sometimes give a value of
+ * zero for a tag when they don't know what the
+ * correct value is! Try and handle the simple case
+ * of estimating the size of a one strip image.
+ */
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Bogus \"StripByteCounts\" field, ignoring and calculating from imagelength");
+ if(EstimateStripByteCounts(tif, dir, dircount) < 0)
+ goto bad;
+
+#if !defined(DEFER_STRILE_LOAD)
+ } else if (tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG
+ && tif->tif_dir.td_nstrips > 2
+ && tif->tif_dir.td_compression == COMPRESSION_NONE
+ && tif->tif_dir.td_stripbytecount[0] != tif->tif_dir.td_stripbytecount[1]
+ && tif->tif_dir.td_stripbytecount[0] != 0
+ && tif->tif_dir.td_stripbytecount[1] != 0 ) {
+ /*
+ * XXX: Some vendors fill StripByteCount array with
+ * absolutely wrong values (it can be equal to
+ * StripOffset array, for example). Catch this case
+ * here.
+ *
+ * We avoid this check if deferring strile loading
+ * as it would always force us to load the strip/tile
+ * information.
+ */
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Wrong \"StripByteCounts\" field, ignoring and calculating from imagelength");
+ if (EstimateStripByteCounts(tif, dir, dircount) < 0)
+ goto bad;
+#endif /* !defined(DEFER_STRILE_LOAD) */
+ }
+ }
+ if (dir)
+ {
+ _TIFFfree(dir);
+ dir=NULL;
+ }
+ if (!TIFFFieldSet(tif, FIELD_MAXSAMPLEVALUE))
+ {
+ if (tif->tif_dir.td_bitspersample>=16)
+ tif->tif_dir.td_maxsamplevalue=0xFFFF;
+ else
+ tif->tif_dir.td_maxsamplevalue = (uint16)((1L<<tif->tif_dir.td_bitspersample)-1);
+ }
+ /*
+ * XXX: We can optimize checking for the strip bounds using the sorted
+ * bytecounts array. See also comments for TIFFAppendToStrip()
+ * function in tif_write.c.
+ */
+#if !defined(DEFER_STRILE_LOAD)
+ if (tif->tif_dir.td_nstrips > 1) {
+ uint32 strip;
+
+ tif->tif_dir.td_stripbytecountsorted = 1;
+ for (strip = 1; strip < tif->tif_dir.td_nstrips; strip++) {
+ if (tif->tif_dir.td_stripoffset[strip - 1] >
+ tif->tif_dir.td_stripoffset[strip]) {
+ tif->tif_dir.td_stripbytecountsorted = 0;
+ break;
+ }
+ }
+ }
+#endif /* !defined(DEFER_STRILE_LOAD) */
+
+ /*
+ * An opportunity for compression mode dependent tag fixup
+ */
+ (*tif->tif_fixuptags)(tif);
+
+ /*
+ * Some manufacturers make life difficult by writing
+ * large amounts of uncompressed data as a single strip.
+ * This is contrary to the recommendations of the spec.
+ * The following makes an attempt at breaking such images
+ * into strips closer to the recommended 8k bytes. A
+ * side effect, however, is that the RowsPerStrip tag
+ * value may be changed.
+ */
+ if ((tif->tif_dir.td_planarconfig==PLANARCONFIG_CONTIG)&&
+ (tif->tif_dir.td_nstrips==1)&&
+ (tif->tif_dir.td_compression==COMPRESSION_NONE)&&
+ ((tif->tif_flags&(TIFF_STRIPCHOP|TIFF_ISTILED))==TIFF_STRIPCHOP))
+ {
+ if ( !_TIFFFillStriles(tif) || !tif->tif_dir.td_stripbytecount )
+ return 0;
+ ChopUpSingleUncompressedStrip(tif);
+ }
+
+ /*
+ * Clear the dirty directory flag.
+ */
+ tif->tif_flags &= ~TIFF_DIRTYDIRECT;
+ tif->tif_flags &= ~TIFF_DIRTYSTRIP;
+
+ /*
+ * Reinitialize i/o since we are starting on a new directory.
+ */
+ tif->tif_row = (uint32) -1;
+ tif->tif_curstrip = (uint32) -1;
+ tif->tif_col = (uint32) -1;
+ tif->tif_curtile = (uint32) -1;
+ tif->tif_tilesize = (tmsize_t) -1;
+
+ tif->tif_scanlinesize = TIFFScanlineSize(tif);
+ if (!tif->tif_scanlinesize) {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Cannot handle zero scanline size");
+ return (0);
+ }
+
+ if (isTiled(tif)) {
+ tif->tif_tilesize = TIFFTileSize(tif);
+ if (!tif->tif_tilesize) {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Cannot handle zero tile size");
+ return (0);
+ }
+ } else {
+ if (!TIFFStripSize(tif)) {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Cannot handle zero strip size");
+ return (0);
+ }
+ }
+ return (1);
+bad:
+ if (dir)
+ _TIFFfree(dir);
+ return (0);
+}
+
+static void
+TIFFReadDirectoryCheckOrder(TIFF* tif, TIFFDirEntry* dir, uint16 dircount)
+{
+ static const char module[] = "TIFFReadDirectoryCheckOrder";
+ uint16 m;
+ uint16 n;
+ TIFFDirEntry* o;
+ m=0;
+ for (n=0, o=dir; n<dircount; n++, o++)
+ {
+ if (o->tdir_tag<m)
+ {
+ TIFFWarningExt(tif->tif_clientdata,module,
+ "Invalid TIFF directory; tags are not sorted in ascending order");
+ break;
+ }
+ m=o->tdir_tag+1;
+ }
+}
+
+static TIFFDirEntry*
+TIFFReadDirectoryFindEntry(TIFF* tif, TIFFDirEntry* dir, uint16 dircount, uint16 tagid)
+{
+ TIFFDirEntry* m;
+ uint16 n;
+ (void) tif;
+ for (m=dir, n=0; n<dircount; m++, n++)
+ {
+ if (m->tdir_tag==tagid)
+ return(m);
+ }
+ return(0);
+}
+
+static void
+TIFFReadDirectoryFindFieldInfo(TIFF* tif, uint16 tagid, uint32* fii)
+{
+ int32 ma,mb,mc;
+ ma=-1;
+ mc=(int32)tif->tif_nfields;
+ while (1)
+ {
+ if (ma+1==mc)
+ {
+ *fii = FAILED_FII;
+ return;
+ }
+ mb=(ma+mc)/2;
+ if (tif->tif_fields[mb]->field_tag==(uint32)tagid)
+ break;
+ if (tif->tif_fields[mb]->field_tag<(uint32)tagid)
+ ma=mb;
+ else
+ mc=mb;
+ }
+ while (1)
+ {
+ if (mb==0)
+ break;
+ if (tif->tif_fields[mb-1]->field_tag!=(uint32)tagid)
+ break;
+ mb--;
+ }
+ *fii=mb;
+}
+
+/*
+ * Read custom directory from the arbitarry offset.
+ * The code is very similar to TIFFReadDirectory().
+ */
+int
+TIFFReadCustomDirectory(TIFF* tif, toff_t diroff,
+ const TIFFFieldArray* infoarray)
+{
+ static const char module[] = "TIFFReadCustomDirectory";
+ TIFFDirEntry* dir;
+ uint16 dircount;
+ TIFFDirEntry* dp;
+ uint16 di;
+ const TIFFField* fip;
+ uint32 fii;
+ _TIFFSetupFields(tif, infoarray);
+ dircount=TIFFFetchDirectory(tif,diroff,&dir,NULL);
+ if (!dircount)
+ {
+ TIFFErrorExt(tif->tif_clientdata,module,
+ "Failed to read custom directory at offset " TIFF_UINT64_FORMAT,diroff);
+ return 0;
+ }
+ TIFFFreeDirectory(tif);
+ _TIFFmemset(&tif->tif_dir, 0, sizeof(TIFFDirectory));
+ TIFFReadDirectoryCheckOrder(tif,dir,dircount);
+ for (di=0, dp=dir; di<dircount; di++, dp++)
+ {
+ TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii);
+ if (fii == FAILED_FII)
+ {
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Unknown field with tag %d (0x%x) encountered",
+ dp->tdir_tag, dp->tdir_tag);
+ if (!_TIFFMergeFields(tif, _TIFFCreateAnonField(tif,
+ dp->tdir_tag,
+ (TIFFDataType) dp->tdir_type),
+ 1)) {
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Registering anonymous field with tag %d (0x%x) failed",
+ dp->tdir_tag, dp->tdir_tag);
+ dp->tdir_tag=IGNORE;
+ } else {
+ TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii);
+ assert( fii != FAILED_FII );
+ }
+ }
+ if (dp->tdir_tag!=IGNORE)
+ {
+ fip=tif->tif_fields[fii];
+ if (fip->field_bit==FIELD_IGNORE)
+ dp->tdir_tag=IGNORE;
+ else
+ {
+ /* check data type */
+ while ((fip->field_type!=TIFF_ANY)&&(fip->field_type!=dp->tdir_type))
+ {
+ fii++;
+ if ((fii==tif->tif_nfields)||
+ (tif->tif_fields[fii]->field_tag!=(uint32)dp->tdir_tag))
+ {
+ fii=0xFFFF;
+ break;
+ }
+ fip=tif->tif_fields[fii];
+ }
+ if (fii==0xFFFF)
+ {
+ TIFFWarningExt(tif->tif_clientdata, module,
+ "Wrong data type %d for \"%s\"; tag ignored",
+ dp->tdir_type,fip->field_name);
+ dp->tdir_tag=IGNORE;
+ }
+ else
+ {
+ /* check count if known in advance */
+ if ((fip->field_readcount!=TIFF_VARIABLE)&&
+ (fip->field_readcount!=TIFF_VARIABLE2))
+ {
+ uint32 expected;
+ if (fip->field_readcount==TIFF_SPP)
+ expected=(uint32)tif->tif_dir.td_samplesperpixel;
+ else
+ expected=(uint32)fip->field_readcount;
+ if (!CheckDirCount(tif,dp,expected))
+ dp->tdir_tag=IGNORE;
+ }
+ }
+ }
+ switch (dp->tdir_tag)
+ {
+ case IGNORE:
+ break;
+ case EXIFTAG_SUBJECTDISTANCE:
+ (void) TIFFFetchSubjectDistance(tif,dp);
+ break;
+ default:
+ (void) TIFFFetchNormalTag(tif, dp, TRUE);
+ break;
+ }
+ }
+ }
+ if (dir)
+ _TIFFfree(dir);
+ return 1;
+}
+
+/*
+ * EXIF is important special case of custom IFD, so we have a special
+ * function to read it.
+ */
+int
+TIFFReadEXIFDirectory(TIFF* tif, toff_t diroff)
+{
+ const TIFFFieldArray* exifFieldArray;
+ exifFieldArray = _TIFFGetExifFields();
+ return TIFFReadCustomDirectory(tif, diroff, exifFieldArray);
+}
+
+static int
+EstimateStripByteCounts(TIFF* tif, TIFFDirEntry* dir, uint16 dircount)
+{
+ static const char module[] = "EstimateStripByteCounts";
+
+ TIFFDirEntry *dp;
+ TIFFDirectory *td = &tif->tif_dir;
+ uint32 strip;
+
+ if( !_TIFFFillStriles( tif ) )
+ return -1;
+
+ if (td->td_stripbytecount)
+ _TIFFfree(td->td_stripbytecount);
+ td->td_stripbytecount = (uint64*)
+ _TIFFCheckMalloc(tif, td->td_nstrips, sizeof (uint64),
+ "for \"StripByteCounts\" array");
+ if( td->td_stripbytecount == NULL )
+ return -1;
+
+ if (td->td_compression != COMPRESSION_NONE) {
+ uint64 space;
+ uint64 filesize;
+ uint16 n;
+ filesize = TIFFGetFileSize(tif);
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ space=sizeof(TIFFHeaderClassic)+2+dircount*12+4;
+ else
+ space=sizeof(TIFFHeaderBig)+8+dircount*20+8;
+ /* calculate amount of space used by indirect values */
+ for (dp = dir, n = dircount; n > 0; n--, dp++)
+ {
+ uint32 typewidth = TIFFDataWidth((TIFFDataType) dp->tdir_type);
+ uint64 datasize;
+ typewidth = TIFFDataWidth((TIFFDataType) dp->tdir_type);
+ if (typewidth == 0) {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Cannot determine size of unknown tag type %d",
+ dp->tdir_type);
+ return -1;
+ }
+ datasize=(uint64)typewidth*dp->tdir_count;
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ if (datasize<=4)
+ datasize=0;
+ }
+ else
+ {
+ if (datasize<=8)
+ datasize=0;
+ }
+ space+=datasize;
+ }
+ space = filesize - space;
+ if (td->td_planarconfig == PLANARCONFIG_SEPARATE)
+ space /= td->td_samplesperpixel;
+ for (strip = 0; strip < td->td_nstrips; strip++)
+ td->td_stripbytecount[strip] = space;
+ /*
+ * This gross hack handles the case were the offset to
+ * the last strip is past the place where we think the strip
+ * should begin. Since a strip of data must be contiguous,
+ * it's safe to assume that we've overestimated the amount
+ * of data in the strip and trim this number back accordingly.
+ */
+ strip--;
+ if (td->td_stripoffset[strip]+td->td_stripbytecount[strip] > filesize)
+ td->td_stripbytecount[strip] = filesize - td->td_stripoffset[strip];
+ } else if (isTiled(tif)) {
+ uint64 bytespertile = TIFFTileSize64(tif);
+
+ for (strip = 0; strip < td->td_nstrips; strip++)
+ td->td_stripbytecount[strip] = bytespertile;
+ } else {
+ uint64 rowbytes = TIFFScanlineSize64(tif);
+ uint32 rowsperstrip = td->td_imagelength/td->td_stripsperimage;
+ for (strip = 0; strip < td->td_nstrips; strip++)
+ td->td_stripbytecount[strip] = rowbytes * rowsperstrip;
+ }
+ TIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS);
+ if (!TIFFFieldSet(tif, FIELD_ROWSPERSTRIP))
+ td->td_rowsperstrip = td->td_imagelength;
+ return 1;
+}
+
+static void
+MissingRequired(TIFF* tif, const char* tagname)
+{
+ static const char module[] = "MissingRequired";
+
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "TIFF directory is missing required \"%s\" field",
+ tagname);
+}
+
+/*
+ * Check the directory offset against the list of already seen directory
+ * offsets. This is a trick to prevent IFD looping. The one can create TIFF
+ * file with looped directory pointers. We will maintain a list of already
+ * seen directories and check every IFD offset against that list.
+ */
+static int
+TIFFCheckDirOffset(TIFF* tif, uint64 diroff)
+{
+ uint16 n;
+
+ if (diroff == 0) /* no more directories */
+ return 0;
+ if (tif->tif_dirnumber == 65535) {
+ TIFFErrorExt(tif->tif_clientdata, "TIFFCheckDirOffset",
+ "Cannot handle more than 65535 TIFF directories");
+ return 0;
+ }
+
+ for (n = 0; n < tif->tif_dirnumber && tif->tif_dirlist; n++) {
+ if (tif->tif_dirlist[n] == diroff)
+ return 0;
+ }
+
+ tif->tif_dirnumber++;
+
+ if (tif->tif_dirnumber > tif->tif_dirlistsize) {
+ uint64* new_dirlist;
+
+ /*
+ * XXX: Reduce memory allocation granularity of the dirlist
+ * array.
+ */
+ new_dirlist = (uint64*)_TIFFCheckRealloc(tif, tif->tif_dirlist,
+ tif->tif_dirnumber, 2 * sizeof(uint64), "for IFD list");
+ if (!new_dirlist)
+ return 0;
+ if( tif->tif_dirnumber >= 32768 )
+ tif->tif_dirlistsize = 65535;
+ else
+ tif->tif_dirlistsize = 2 * tif->tif_dirnumber;
+ tif->tif_dirlist = new_dirlist;
+ }
+
+ tif->tif_dirlist[tif->tif_dirnumber - 1] = diroff;
+
+ return 1;
+}
+
+/*
+ * Check the count field of a directory entry against a known value. The
+ * caller is expected to skip/ignore the tag if there is a mismatch.
+ */
+static int
+CheckDirCount(TIFF* tif, TIFFDirEntry* dir, uint32 count)
+{
+ if ((uint64)count > dir->tdir_count) {
+ const TIFFField* fip = TIFFFieldWithTag(tif, dir->tdir_tag);
+ TIFFWarningExt(tif->tif_clientdata, tif->tif_name,
+ "incorrect count for field \"%s\" (" TIFF_UINT64_FORMAT ", expecting %u); tag ignored",
+ fip ? fip->field_name : "unknown tagname",
+ dir->tdir_count, count);
+ return (0);
+ } else if ((uint64)count < dir->tdir_count) {
+ const TIFFField* fip = TIFFFieldWithTag(tif, dir->tdir_tag);
+ TIFFWarningExt(tif->tif_clientdata, tif->tif_name,
+ "incorrect count for field \"%s\" (" TIFF_UINT64_FORMAT ", expecting %u); tag trimmed",
+ fip ? fip->field_name : "unknown tagname",
+ dir->tdir_count, count);
+ dir->tdir_count = count;
+ return (1);
+ }
+ return (1);
+}
+
+/*
+ * Read IFD structure from the specified offset. If the pointer to
+ * nextdiroff variable has been specified, read it too. Function returns a
+ * number of fields in the directory or 0 if failed.
+ */
+static uint16
+TIFFFetchDirectory(TIFF* tif, uint64 diroff, TIFFDirEntry** pdir,
+ uint64 *nextdiroff)
+{
+ static const char module[] = "TIFFFetchDirectory";
+
+ void* origdir;
+ uint16 dircount16;
+ uint32 dirsize;
+ TIFFDirEntry* dir;
+ uint8* ma;
+ TIFFDirEntry* mb;
+ uint16 n;
+
+ assert(pdir);
+
+ tif->tif_diroff = diroff;
+ if (nextdiroff)
+ *nextdiroff = 0;
+ if (!isMapped(tif)) {
+ if (!SeekOK(tif, tif->tif_diroff)) {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "%s: Seek error accessing TIFF directory",
+ tif->tif_name);
+ return 0;
+ }
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ if (!ReadOK(tif, &dircount16, 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(&dircount16);
+ if (dircount16>4096)
+ {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Sanity check on directory count failed, this is probably not a valid IFD offset");
+ return 0;
+ }
+ dirsize = 12;
+ } 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);
+ if (dircount64>4096)
+ {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Sanity check on directory count failed, this is probably not a valid IFD offset");
+ return 0;
+ }
+ dircount16 = (uint16)dircount64;
+ dirsize = 20;
+ }
+ origdir = _TIFFCheckMalloc(tif, dircount16,
+ dirsize, "to read TIFF directory");
+ if (origdir == NULL)
+ return 0;
+ if (!ReadOK(tif, origdir, (tmsize_t)(dircount16*dirsize))) {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "%.100s: Can not read TIFF directory",
+ tif->tif_name);
+ _TIFFfree(origdir);
+ return 0;
+ }
+ /*
+ * Read offset to next directory for sequential scans if
+ * needed.
+ */
+ if (nextdiroff)
+ {
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ uint32 nextdiroff32;
+ if (!ReadOK(tif, &nextdiroff32, sizeof(uint32)))
+ nextdiroff32 = 0;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(&nextdiroff32);
+ *nextdiroff=nextdiroff32;
+ } else {
+ if (!ReadOK(tif, nextdiroff, sizeof(uint64)))
+ *nextdiroff = 0;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(nextdiroff);
+ }
+ }
+ } else {
+ tmsize_t m;
+ tmsize_t off = (tmsize_t) tif->tif_diroff;
+ if ((uint64)off!=tif->tif_diroff)
+ {
+ TIFFErrorExt(tif->tif_clientdata,module,"Can not read TIFF directory count");
+ return(0);
+ }
+
+ /*
+ * Check for integer overflow when validating the dir_off,
+ * otherwise a very high offset may cause an OOB read and
+ * crash the client. Make two comparisons instead of
+ *
+ * off + sizeof(uint16) > tif->tif_size
+ *
+ * to avoid overflow.
+ */
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ m=off+sizeof(uint16);
+ if ((m<off)||(m<(tmsize_t)sizeof(uint16))||(m>tif->tif_size)) {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Can not read TIFF directory count");
+ return 0;
+ } else {
+ _TIFFmemcpy(&dircount16, tif->tif_base + off,
+ sizeof(uint16));
+ }
+ off += sizeof (uint16);
+ if (tif->tif_flags & TIFF_SWAB)
+ TIFFSwabShort(&dircount16);
+ if (dircount16>4096)
+ {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Sanity check on directory count failed, this is probably not a valid IFD offset");
+ return 0;
+ }
+ dirsize = 12;
+ }
+ else
+ {
+ tmsize_t m;
+ uint64 dircount64;
+ m=off+sizeof(uint64);
+ if ((m<off)||(m<(tmsize_t)sizeof(uint64))||(m>tif->tif_size)) {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Can not read TIFF directory count");
+ return 0;
+ } else {
+ _TIFFmemcpy(&dircount64, tif->tif_base + off,
+ sizeof(uint64));
+ }
+ off += sizeof (uint64);
+ if (tif->tif_flags & TIFF_SWAB)
+ TIFFSwabLong8(&dircount64);
+ if (dircount64>4096)
+ {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Sanity check on directory count failed, this is probably not a valid IFD offset");
+ return 0;
+ }
+ dircount16 = (uint16)dircount64;
+ dirsize = 20;
+ }
+ if (dircount16 == 0 )
+ {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Sanity check on directory count failed, zero tag directories not supported");
+ return 0;
+ }
+ origdir = _TIFFCheckMalloc(tif, dircount16,
+ dirsize,
+ "to read TIFF directory");
+ if (origdir == NULL)
+ return 0;
+ m=off+dircount16*dirsize;
+ if ((m<off)||(m<(tmsize_t)(dircount16*dirsize))||(m>tif->tif_size)) {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Can not read TIFF directory");
+ _TIFFfree(origdir);
+ return 0;
+ } else {
+ _TIFFmemcpy(origdir, tif->tif_base + off,
+ dircount16 * dirsize);
+ }
+ if (nextdiroff) {
+ off += dircount16 * dirsize;
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ uint32 nextdiroff32;
+ m=off+sizeof(uint32);
+ if ((m<off)||(m<(tmsize_t)sizeof(uint32))||(m>tif->tif_size))
+ nextdiroff32 = 0;
+ else
+ _TIFFmemcpy(&nextdiroff32, tif->tif_base + off,
+ sizeof (uint32));
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(&nextdiroff32);
+ *nextdiroff = nextdiroff32;
+ }
+ else
+ {
+ m=off+sizeof(uint64);
+ if ((m<off)||(m<(tmsize_t)sizeof(uint64))||(m>tif->tif_size))
+ *nextdiroff = 0;
+ else
+ _TIFFmemcpy(nextdiroff, tif->tif_base + off,
+ sizeof (uint64));
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8(nextdiroff);
+ }
+ }
+ }
+ dir = (TIFFDirEntry*)_TIFFCheckMalloc(tif, dircount16,
+ sizeof(TIFFDirEntry),
+ "to read TIFF directory");
+ if (dir==0)
+ {
+ _TIFFfree(origdir);
+ return 0;
+ }
+ ma=(uint8*)origdir;
+ mb=dir;
+ for (n=0; n<dircount16; n++)
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort((uint16*)ma);
+ mb->tdir_tag=*(uint16*)ma;
+ ma+=sizeof(uint16);
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabShort((uint16*)ma);
+ mb->tdir_type=*(uint16*)ma;
+ ma+=sizeof(uint16);
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong((uint32*)ma);
+ mb->tdir_count=(uint64)(*(uint32*)ma);
+ ma+=sizeof(uint32);
+ *(uint32*)(&mb->tdir_offset)=*(uint32*)ma;
+ ma+=sizeof(uint32);
+ }
+ else
+ {
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong8((uint64*)ma);
+ mb->tdir_count=TIFFReadUInt64(ma);
+ ma+=sizeof(uint64);
+ mb->tdir_offset.toff_long8=TIFFReadUInt64(ma);
+ ma+=sizeof(uint64);
+ }
+ mb++;
+ }
+ _TIFFfree(origdir);
+ *pdir = dir;
+ return dircount16;
+}
+
+/*
+ * Fetch a tag that is not handled by special case code.
+ */
+static int
+TIFFFetchNormalTag(TIFF* tif, TIFFDirEntry* dp, int recover)
+{
+ static const char module[] = "TIFFFetchNormalTag";
+ enum TIFFReadDirEntryErr err;
+ uint32 fii;
+ const TIFFField* fip = NULL;
+ TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii);
+ if( fii == FAILED_FII )
+ {
+ TIFFErrorExt(tif->tif_clientdata, "TIFFFetchNormalTag",
+ "No definition found for tag %d",
+ dp->tdir_tag);
+ return 0;
+ }
+ fip=tif->tif_fields[fii];
+ assert(fip != NULL); /* should not happen */
+ assert(fip->set_field_type!=TIFF_SETGET_OTHER); /* if so, we shouldn't arrive here but deal with this in specialized code */
+ assert(fip->set_field_type!=TIFF_SETGET_INT); /* if so, we shouldn't arrive here as this is only the case for pseudo-tags */
+ err=TIFFReadDirEntryErrOk;
+ switch (fip->set_field_type)
+ {
+ case TIFF_SETGET_UNDEFINED:
+ break;
+ case TIFF_SETGET_ASCII:
+ {
+ uint8* data;
+ assert(fip->field_passcount==0);
+ err=TIFFReadDirEntryByteArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ uint8* ma;
+ uint32 mb;
+ int n;
+ ma=data;
+ mb=0;
+ while (mb<(uint32)dp->tdir_count)
+ {
+ if (*ma==0)
+ break;
+ ma++;
+ mb++;
+ }
+ if (mb+1<(uint32)dp->tdir_count)
+ TIFFWarningExt(tif->tif_clientdata,module,"ASCII value for tag \"%s\" contains null byte in value; value incorrectly truncated during reading due to implementation limitations",fip->field_name);
+ else if (mb+1>(uint32)dp->tdir_count)
+ {
+ uint8* o;
+ TIFFWarningExt(tif->tif_clientdata,module,"ASCII value for tag \"%s\" does not end in null byte",fip->field_name);
+ if ((uint32)dp->tdir_count+1!=dp->tdir_count+1)
+ o=NULL;
+ else
+ o=_TIFFmalloc((uint32)dp->tdir_count+1);
+ if (o==NULL)
+ {
+ if (data!=NULL)
+ _TIFFfree(data);
+ return(0);
+ }
+ _TIFFmemcpy(o,data,(uint32)dp->tdir_count);
+ o[(uint32)dp->tdir_count]=0;
+ if (data!=0)
+ _TIFFfree(data);
+ data=o;
+ }
+ n=TIFFSetField(tif,dp->tdir_tag,data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!n)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_UINT8:
+ {
+ uint8 data=0;
+ assert(fip->field_readcount==1);
+ assert(fip->field_passcount==0);
+ err=TIFFReadDirEntryByte(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ if (!TIFFSetField(tif,dp->tdir_tag,data))
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_UINT16:
+ {
+ uint16 data;
+ assert(fip->field_readcount==1);
+ assert(fip->field_passcount==0);
+ err=TIFFReadDirEntryShort(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ if (!TIFFSetField(tif,dp->tdir_tag,data))
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_UINT32:
+ {
+ uint32 data;
+ assert(fip->field_readcount==1);
+ assert(fip->field_passcount==0);
+ err=TIFFReadDirEntryLong(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ if (!TIFFSetField(tif,dp->tdir_tag,data))
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_UINT64:
+ {
+ uint64 data;
+ assert(fip->field_readcount==1);
+ assert(fip->field_passcount==0);
+ err=TIFFReadDirEntryLong8(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ if (!TIFFSetField(tif,dp->tdir_tag,data))
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_FLOAT:
+ {
+ float data;
+ assert(fip->field_readcount==1);
+ assert(fip->field_passcount==0);
+ err=TIFFReadDirEntryFloat(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ if (!TIFFSetField(tif,dp->tdir_tag,data))
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_DOUBLE:
+ {
+ double data;
+ assert(fip->field_readcount==1);
+ assert(fip->field_passcount==0);
+ err=TIFFReadDirEntryDouble(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ if (!TIFFSetField(tif,dp->tdir_tag,data))
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_IFD8:
+ {
+ uint64 data;
+ assert(fip->field_readcount==1);
+ assert(fip->field_passcount==0);
+ err=TIFFReadDirEntryIfd8(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ if (!TIFFSetField(tif,dp->tdir_tag,data))
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_UINT16_PAIR:
+ {
+ uint16* data;
+ assert(fip->field_readcount==2);
+ assert(fip->field_passcount==0);
+ if (dp->tdir_count!=2) {
+ TIFFWarningExt(tif->tif_clientdata,module,
+ "incorrect count for field \"%s\", expected 2, got %d",
+ fip->field_name,(int)dp->tdir_count);
+ return(0);
+ }
+ err=TIFFReadDirEntryShortArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,data[0],data[1]);
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_C0_UINT8:
+ {
+ uint8* data;
+ assert(fip->field_readcount>=1);
+ assert(fip->field_passcount==0);
+ if (dp->tdir_count!=(uint64)fip->field_readcount) {
+ TIFFWarningExt(tif->tif_clientdata,module,
+ "incorrect count for field \"%s\", expected %d, got %d",
+ fip->field_name,(int) fip->field_readcount, (int)dp->tdir_count);
+ return 0;
+ }
+ else
+ {
+ err=TIFFReadDirEntryByteArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ }
+ break;
+ case TIFF_SETGET_C0_UINT16:
+ {
+ uint16* data;
+ assert(fip->field_readcount>=1);
+ assert(fip->field_passcount==0);
+ if (dp->tdir_count!=(uint64)fip->field_readcount)
+ /* corrupt file */;
+ else
+ {
+ err=TIFFReadDirEntryShortArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ }
+ break;
+ case TIFF_SETGET_C0_UINT32:
+ {
+ uint32* data;
+ assert(fip->field_readcount>=1);
+ assert(fip->field_passcount==0);
+ if (dp->tdir_count!=(uint64)fip->field_readcount)
+ /* corrupt file */;
+ else
+ {
+ err=TIFFReadDirEntryLongArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ }
+ break;
+ case TIFF_SETGET_C0_FLOAT:
+ {
+ float* data;
+ assert(fip->field_readcount>=1);
+ assert(fip->field_passcount==0);
+ if (dp->tdir_count!=(uint64)fip->field_readcount)
+ /* corrupt file */;
+ else
+ {
+ err=TIFFReadDirEntryFloatArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ }
+ break;
+ case TIFF_SETGET_C16_ASCII:
+ {
+ uint8* data;
+ assert(fip->field_readcount==TIFF_VARIABLE);
+ assert(fip->field_passcount==1);
+ if (dp->tdir_count>0xFFFF)
+ err=TIFFReadDirEntryErrCount;
+ else
+ {
+ err=TIFFReadDirEntryByteArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ }
+ break;
+ case TIFF_SETGET_C16_UINT8:
+ {
+ uint8* data;
+ assert(fip->field_readcount==TIFF_VARIABLE);
+ assert(fip->field_passcount==1);
+ if (dp->tdir_count>0xFFFF)
+ err=TIFFReadDirEntryErrCount;
+ else
+ {
+ err=TIFFReadDirEntryByteArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ }
+ break;
+ case TIFF_SETGET_C16_UINT16:
+ {
+ uint16* data;
+ assert(fip->field_readcount==TIFF_VARIABLE);
+ assert(fip->field_passcount==1);
+ if (dp->tdir_count>0xFFFF)
+ err=TIFFReadDirEntryErrCount;
+ else
+ {
+ err=TIFFReadDirEntryShortArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ }
+ break;
+ case TIFF_SETGET_C16_UINT32:
+ {
+ uint32* data;
+ assert(fip->field_readcount==TIFF_VARIABLE);
+ assert(fip->field_passcount==1);
+ if (dp->tdir_count>0xFFFF)
+ err=TIFFReadDirEntryErrCount;
+ else
+ {
+ err=TIFFReadDirEntryLongArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ }
+ break;
+ case TIFF_SETGET_C16_UINT64:
+ {
+ uint64* data;
+ assert(fip->field_readcount==TIFF_VARIABLE);
+ assert(fip->field_passcount==1);
+ if (dp->tdir_count>0xFFFF)
+ err=TIFFReadDirEntryErrCount;
+ else
+ {
+ err=TIFFReadDirEntryLong8Array(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ }
+ break;
+ case TIFF_SETGET_C16_FLOAT:
+ {
+ float* data;
+ assert(fip->field_readcount==TIFF_VARIABLE);
+ assert(fip->field_passcount==1);
+ if (dp->tdir_count>0xFFFF)
+ err=TIFFReadDirEntryErrCount;
+ else
+ {
+ err=TIFFReadDirEntryFloatArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ }
+ break;
+ case TIFF_SETGET_C16_DOUBLE:
+ {
+ double* data;
+ assert(fip->field_readcount==TIFF_VARIABLE);
+ assert(fip->field_passcount==1);
+ if (dp->tdir_count>0xFFFF)
+ err=TIFFReadDirEntryErrCount;
+ else
+ {
+ err=TIFFReadDirEntryDoubleArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ }
+ break;
+ case TIFF_SETGET_C16_IFD8:
+ {
+ uint64* data;
+ assert(fip->field_readcount==TIFF_VARIABLE);
+ assert(fip->field_passcount==1);
+ if (dp->tdir_count>0xFFFF)
+ err=TIFFReadDirEntryErrCount;
+ else
+ {
+ err=TIFFReadDirEntryIfd8Array(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ }
+ break;
+ case TIFF_SETGET_C32_ASCII:
+ {
+ uint8* data;
+ assert(fip->field_readcount==TIFF_VARIABLE2);
+ assert(fip->field_passcount==1);
+ err=TIFFReadDirEntryByteArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_C32_UINT8:
+ {
+ uint8* data;
+ assert(fip->field_readcount==TIFF_VARIABLE2);
+ assert(fip->field_passcount==1);
+ err=TIFFReadDirEntryByteArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_C32_SINT8:
+ {
+ int8* data = NULL;
+ assert(fip->field_readcount==TIFF_VARIABLE2);
+ assert(fip->field_passcount==1);
+ err=TIFFReadDirEntrySbyteArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_C32_UINT16:
+ {
+ uint16* data;
+ assert(fip->field_readcount==TIFF_VARIABLE2);
+ assert(fip->field_passcount==1);
+ err=TIFFReadDirEntryShortArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_C32_SINT16:
+ {
+ int16* data = NULL;
+ assert(fip->field_readcount==TIFF_VARIABLE2);
+ assert(fip->field_passcount==1);
+ err=TIFFReadDirEntrySshortArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_C32_UINT32:
+ {
+ uint32* data;
+ assert(fip->field_readcount==TIFF_VARIABLE2);
+ assert(fip->field_passcount==1);
+ err=TIFFReadDirEntryLongArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_C32_SINT32:
+ {
+ int32* data = NULL;
+ assert(fip->field_readcount==TIFF_VARIABLE2);
+ assert(fip->field_passcount==1);
+ err=TIFFReadDirEntrySlongArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_C32_UINT64:
+ {
+ uint64* data;
+ assert(fip->field_readcount==TIFF_VARIABLE2);
+ assert(fip->field_passcount==1);
+ err=TIFFReadDirEntryLong8Array(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_C32_SINT64:
+ {
+ int64* data = NULL;
+ assert(fip->field_readcount==TIFF_VARIABLE2);
+ assert(fip->field_passcount==1);
+ err=TIFFReadDirEntrySlong8Array(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_C32_FLOAT:
+ {
+ float* data;
+ assert(fip->field_readcount==TIFF_VARIABLE2);
+ assert(fip->field_passcount==1);
+ err=TIFFReadDirEntryFloatArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_C32_DOUBLE:
+ {
+ double* data;
+ assert(fip->field_readcount==TIFF_VARIABLE2);
+ assert(fip->field_passcount==1);
+ err=TIFFReadDirEntryDoubleArray(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ case TIFF_SETGET_C32_IFD8:
+ {
+ uint64* data;
+ assert(fip->field_readcount==TIFF_VARIABLE2);
+ assert(fip->field_passcount==1);
+ err=TIFFReadDirEntryIfd8Array(tif,dp,&data);
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ int m;
+ m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ if (data!=0)
+ _TIFFfree(data);
+ if (!m)
+ return(0);
+ }
+ }
+ break;
+ default:
+ assert(0); /* we should never get here */
+ break;
+ }
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ TIFFReadDirEntryOutputErr(tif,err,module,fip->field_name,recover);
+ return(0);
+ }
+ return(1);
+}
+
+/*
+ * Fetch a set of offsets or lengths.
+ * While this routine says "strips", in fact it's also used for tiles.
+ */
+static int
+TIFFFetchStripThing(TIFF* tif, TIFFDirEntry* dir, uint32 nstrips, uint64** lpp)
+{
+ static const char module[] = "TIFFFetchStripThing";
+ enum TIFFReadDirEntryErr err;
+ uint64* data;
+ err=TIFFReadDirEntryLong8Array(tif,dir,&data);
+ if (err!=TIFFReadDirEntryErrOk)
+ {
+ const TIFFField* fip = TIFFFieldWithTag(tif,dir->tdir_tag);
+ TIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name : "unknown tagname",0);
+ return(0);
+ }
+ if (dir->tdir_count!=(uint64)nstrips)
+ {
+ uint64* resizeddata;
+ resizeddata=(uint64*)_TIFFCheckMalloc(tif,nstrips,sizeof(uint64),"for strip array");
+ if (resizeddata==0) {
+ _TIFFfree(data);
+ return(0);
+ }
+ if (dir->tdir_count<(uint64)nstrips)
+ {
+ _TIFFmemcpy(resizeddata,data,(uint32)dir->tdir_count*sizeof(uint64));
+ _TIFFmemset(resizeddata+(uint32)dir->tdir_count,0,(nstrips-(uint32)dir->tdir_count)*sizeof(uint64));
+ }
+ else
+ _TIFFmemcpy(resizeddata,data,nstrips*sizeof(uint64));
+ _TIFFfree(data);
+ data=resizeddata;
+ }
+ *lpp=data;
+ return(1);
+}
+
+/*
+ * Fetch and set the SubjectDistance EXIF tag.
+ */
+static int
+TIFFFetchSubjectDistance(TIFF* tif, TIFFDirEntry* dir)
+{
+ static const char module[] = "TIFFFetchSubjectDistance";
+ enum TIFFReadDirEntryErr err;
+ UInt64Aligned_t m;
+ m.l=0;
+ assert(sizeof(double)==8);
+ assert(sizeof(uint64)==8);
+ assert(sizeof(uint32)==4);
+ if (dir->tdir_count!=1)
+ err=TIFFReadDirEntryErrCount;
+ else if (dir->tdir_type!=TIFF_RATIONAL)
+ err=TIFFReadDirEntryErrType;
+ else
+ {
+ if (!(tif->tif_flags&TIFF_BIGTIFF))
+ {
+ uint32 offset;
+ offset=*(uint32*)(&dir->tdir_offset);
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabLong(&offset);
+ err=TIFFReadDirEntryData(tif,offset,8,m.i);
+ }
+ else
+ {
+ m.l=dir->tdir_offset.toff_long8;
+ err=TIFFReadDirEntryErrOk;
+ }
+ }
+ if (err==TIFFReadDirEntryErrOk)
+ {
+ double n;
+ if (tif->tif_flags&TIFF_SWAB)
+ TIFFSwabArrayOfLong(m.i,2);
+ if (m.i[0]==0)
+ n=0.0;
+ else if (m.i[0]==0xFFFFFFFF)
+ /*
+ * XXX: Numerator 0xFFFFFFFF means that we have infinite
+ * distance. Indicate that with a negative floating point
+ * SubjectDistance value.
+ */
+ n=-1.0;
+ else
+ n=(double)m.i[0]/(double)m.i[1];
+ return(TIFFSetField(tif,dir->tdir_tag,n));
+ }
+ else
+ {
+ TIFFReadDirEntryOutputErr(tif,err,module,"SubjectDistance",TRUE);
+ return(0);
+ }
+}
+
+/*
+ * Replace a single strip (tile) of uncompressed data by multiple strips
+ * (tiles), each approximately STRIP_SIZE_DEFAULT bytes. This is useful for
+ * dealing with large images or for dealing with machines with a limited
+ * amount memory.
+ */
+static void
+ChopUpSingleUncompressedStrip(TIFF* tif)
+{
+ register TIFFDirectory *td = &tif->tif_dir;
+ uint64 bytecount;
+ uint64 offset;
+ uint32 rowblock;
+ uint64 rowblockbytes;
+ uint64 stripbytes;
+ uint32 strip;
+ uint64 nstrips64;
+ uint32 nstrips32;
+ uint32 rowsperstrip;
+ uint64* newcounts;
+ uint64* newoffsets;
+
+ bytecount = td->td_stripbytecount[0];
+ offset = td->td_stripoffset[0];
+ assert(td->td_planarconfig == PLANARCONFIG_CONTIG);
+ if ((td->td_photometric == PHOTOMETRIC_YCBCR)&&
+ (!isUpSampled(tif)))
+ rowblock = td->td_ycbcrsubsampling[1];
+ else
+ rowblock = 1;
+ rowblockbytes = TIFFVTileSize64(tif, rowblock);
+ /*
+ * Make the rows hold at least one scanline, but fill specified amount
+ * of data if possible.
+ */
+ if (rowblockbytes > STRIP_SIZE_DEFAULT) {
+ stripbytes = rowblockbytes;
+ rowsperstrip = rowblock;
+ } else if (rowblockbytes > 0 ) {
+ uint32 rowblocksperstrip;
+ rowblocksperstrip = (uint32) (STRIP_SIZE_DEFAULT / rowblockbytes);
+ rowsperstrip = rowblocksperstrip * rowblock;
+ stripbytes = rowblocksperstrip * rowblockbytes;
+ }
+ else
+ return;
+
+ /*
+ * never increase the number of strips in an image
+ */
+ if (rowsperstrip >= td->td_rowsperstrip)
+ return;
+ nstrips64 = TIFFhowmany_64(bytecount, stripbytes);
+ if ((nstrips64==0)||(nstrips64>0xFFFFFFFF)) /* something is wonky, do nothing. */
+ return;
+ nstrips32 = (uint32)nstrips64;
+
+ newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64),
+ "for chopped \"StripByteCounts\" array");
+ newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64),
+ "for chopped \"StripOffsets\" array");
+ if (newcounts == NULL || newoffsets == NULL) {
+ /*
+ * Unable to allocate new strip information, give up and use
+ * the original one strip information.
+ */
+ if (newcounts != NULL)
+ _TIFFfree(newcounts);
+ if (newoffsets != NULL)
+ _TIFFfree(newoffsets);
+ return;
+ }
+ /*
+ * Fill the strip information arrays with new bytecounts and offsets
+ * that reflect the broken-up format.
+ */
+ for (strip = 0; strip < nstrips32; strip++) {
+ if (stripbytes > bytecount)
+ stripbytes = bytecount;
+ newcounts[strip] = stripbytes;
+ newoffsets[strip] = offset;
+ offset += stripbytes;
+ bytecount -= stripbytes;
+ }
+ /*
+ * Replace old single strip info with multi-strip info.
+ */
+ td->td_stripsperimage = td->td_nstrips = nstrips32;
+ TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
+
+ _TIFFfree(td->td_stripbytecount);
+ _TIFFfree(td->td_stripoffset);
+ td->td_stripbytecount = newcounts;
+ td->td_stripoffset = newoffsets;
+ td->td_stripbytecountsorted = 1;
+}
+
+int _TIFFFillStriles( TIFF *tif )
+{
+#if defined(DEFER_STRILE_LOAD)
+ register TIFFDirectory *td = &tif->tif_dir;
+ int return_value = 1;
+
+ if( td->td_stripoffset != NULL )
+ return 1;
+
+ if( td->td_stripoffset_entry.tdir_count == 0 )
+ return 0;
+
+ if (!TIFFFetchStripThing(tif,&(td->td_stripoffset_entry),
+ td->td_nstrips,&td->td_stripoffset))
+ {
+ return_value = 0;
+ }
+
+ if (!TIFFFetchStripThing(tif,&(td->td_stripbytecount_entry),
+ td->td_nstrips,&td->td_stripbytecount))
+ {
+ return_value = 0;
+ }
+
+ _TIFFmemset( &(td->td_stripoffset_entry), 0, sizeof(TIFFDirEntry));
+ _TIFFmemset( &(td->td_stripbytecount_entry), 0, sizeof(TIFFDirEntry));
+
+ if (tif->tif_dir.td_nstrips > 1 && return_value == 1 ) {
+ uint32 strip;
+
+ tif->tif_dir.td_stripbytecountsorted = 1;
+ for (strip = 1; strip < tif->tif_dir.td_nstrips; strip++) {
+ if (tif->tif_dir.td_stripoffset[strip - 1] >
+ tif->tif_dir.td_stripoffset[strip]) {
+ tif->tif_dir.td_stripbytecountsorted = 0;
+ break;
+ }
+ }
+ }
+
+ return return_value;
+#else /* !defined(DEFER_STRILE_LOAD) */
+ (void) tif;
+ return 1;
+#endif
+}
+
+
+/* vim: set ts=8 sts=8 sw=8 noet: */
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 8
+ * fill-column: 78
+ * End:
+ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-14 20:40:54 +0000