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Unified Diff: third_party/tiff_v403/tif_dirread.c

Issue 1563103002: XFA: Upgrade to libtiff 4.0.6. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@xfa
Patch Set: rename to libtiff Created 4 years, 11 months ago
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Index: third_party/tiff_v403/tif_dirread.c
diff --git a/third_party/tiff_v403/tif_dirread.c b/third_party/tiff_v403/tif_dirread.c
deleted file mode 100644
index b9e4ffae09ac1743c8feb59802041480b166455a..0000000000000000000000000000000000000000
--- a/third_party/tiff_v403/tif_dirread.c
+++ /dev/null
@@ -1,5614 +0,0 @@
-/* $Id: tif_dirread.c,v 1.178 2012-08-19 16:56:34 bfriesen 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:
- TIFFErrorExt(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;
- 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;
- }
- 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;
- 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;
-
- _TIFFFillStriles( tif );
-
- 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;
-
- 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;
- 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->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 ? fip->field_name : "unknown tagname",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:
- */
-
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