tiff 库 4.0.1

/* $Id: tif_dirread.c,v 1.174 2012-02-01 02:24:47 fwarmerdam 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); sta