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Copy pathcustom_dir_EXIF_231.c
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custom_dir_EXIF_231.c
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/*
* Copyright (c) 2012, Frank Warmerdam <[email protected]>
*
* 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
*
* -- Module copied from custom_dir.c --
*=========== Purpose
*===================================================================================
* Extended and amended version for testing of EXIF 2.32, GPS and handling of
*custom fields. EXIF 2.32 and GPS are defined in amended files tif_dirinfo.c,
*tif_dirread.c, tiff.h, tiffio.h, tif_dir.h, tif_dir.c
*
*-- ATTENTION: After the upgrade with Rational2Double, the GPSTAG values are
*defined as double precision and need to be written and also read in double
*precision! In order to maintain this code for both cases, it is checked above
*if the TiffLibrary is compiled with the new interface with Rational2Double or
*still uses the old definitions, by setting blnIsRational2Double above.
*
*/
/*------------
* This version writes the GPS and EXIF tags correctly, without additional
main-IFD and parameters!
* In contrary, custom_dir.c does write additional main-IFD and parameters to
file.
-------------*/
#define FOR_AUTO_TESTING
#ifdef FOR_AUTO_TESTING
/* Only for automake and CMake infrastructure the test should:
a.) delete any written testfiles when test passed (otherwise autotest
will fail) b.) goto failure, if any failure is detected, which is not
necessary when test is initiated manually for debugging
*/
#define GOTOFAILURE goto failure;
#define GOTOFAILURE_GPS goto failure;
#define GOTOFAILURE_ALL_EXIF goto failure;
#else
#define GOTOFAILURE
#define GOTOFAILURE_GPS
#define GOTOFAILURE_ALL_EXIF
#endif
#ifdef _MSC_VER
#pragma warning(disable : 4101)
#endif
#include "tif_config.h" //necessary for linux compiler
#include <errno.h>
#include <math.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "tiffio.h"
#include "tiffiop.h"
int write_test_tiff(TIFF *tif, const char *filenameRead);
static const char filename[] = "custom_dir_EXIF_231.tif";
static const char filenameBigTiff[] = "custom_dir_EXIF_231_Big.tif";
#define SPP 3 /* Samples per pixel */
const uint16_t width = 1;
const uint16_t length = 1;
const uint16_t bps = 8;
const uint16_t photometric = PHOTOMETRIC_RGB;
const uint16_t rows_per_strip = 1;
const uint16_t planarconfig = PLANARCONFIG_CONTIG;
int main()
{
TIFF *tif;
int ret, ret1, ret2;
fprintf(stderr, "==== Test automatically if all EXIF and GPS tags are "
"written/read correctly. ====\n");
/* --- Test with Classic-TIFF ---*/
/* delete file, if exists */
ret = unlink(filename);
if (ret != 0 && errno != ENOENT)
{
fprintf(stderr, "Can't delete test TIFF file %s.\n", filename);
}
/* We write the main directory as a simple image. */
tif = TIFFOpen(filename, "w+");
if (!tif)
{
fprintf(stderr, "Can't create test TIFF file %s.\n", filename);
return 1;
}
fprintf(stderr, "-------- Test with ClassicTIFF started ----------\n");
ret1 = write_test_tiff(tif, filename);
if (ret1 > 0)
return (ret1);
/*--- Test with BIG-TIFF ---*/
/* delete file, if exists */
ret = unlink(filenameBigTiff);
if (ret != 0 && errno != ENOENT)
{
fprintf(stderr, "Can't delete test TIFF file %s.\n", filenameBigTiff);
}
tif = TIFFOpen(filenameBigTiff, "w8");
if (!tif)
{
fprintf(stderr, "Can't create test TIFF file %s.\n", filenameBigTiff);
return 1;
}
fprintf(stderr, "\n\n-------- Test with BigTIFF started ----------\n");
ret2 = write_test_tiff(tif, filenameBigTiff);
if (ret2 > 0)
return (ret2 + 10);
else
return (ret2);
} /* main() */
int write_test_tiff(TIFF *tif, const char *filenameRead)
{
unsigned char buf[SPP] = {0, 127, 255};
uint64_t dir_offset = 0;
uint64_t dir_offset_GPS = 0, dir_offset_EXIF = 0;
uint64_t read_dir_offset = 0;
/*-- Additional variables --*/
int retCode, retCode2;
unsigned char exifVersion[4] = {
'0', '2', '3',
'1'}; /* EXIF 2.31 version is 4 characters of a string! */
unsigned char gpsVersion[4] = {2, 2, 0, 1}; /* GPS Version is 4 numbers! */
unsigned char *pGpsVersion;
float auxFloat = 0.0f;
double auxDouble = 0.0;
char auxChar = 0;
uint32_t auxUint32 = 0;
short auxShort = 0;
int32_t auxInt32 = 0;
void *pVoid;
int blnIsRational2Double;
int i, j;
int32_t nTags;
const TIFFFieldArray *tFieldArray;
uint32_t tTag;
TIFFDataType tType;
short tWriteCount;
TIFFSetGetFieldType tSetFieldType;
char *tFieldName;
const TIFFField *fip;
char blnFillGPSManually = 1;
#define STRSIZE 1000
#define N_SIZE 120
#define VARIABLE_ARRAY_SIZE 6
/* -- Test data for writing -- */
char auxCharArrayW[N_SIZE];
short auxShortArrayW[N_SIZE];
int32_t auxInt32ArrayW[N_SIZE];
float auxFloatArrayW[N_SIZE];
double auxDoubleArrayW[N_SIZE];
char auxTextArrayW[N_SIZE][STRSIZE];
double auxDoubleArrayGPS1[3] = {1.0 / 7.0, 61.23456789012345, 62.0};
double auxDoubleArrayGPS2[3] = {1.0 / 19.0, 88.34434,
15.12345678901234567890};
double auxDoubleArrayGPSTime[3] = {22.0, 17.0, 15.3456789};
double auxDoubleGPSAltitude = 3456.0;
double auxDoubleGPSDirection = 63.7;
float auxFloatArrayN1[3] = {1.0f / 7.0f, 61.23456789012345f, 62.3f};
float auxFloatArrayN2[3] = {-1.0f / 7.0f, -61.23456789012345f, -62.3f};
float auxFloatArrayResolutions[4] = {5.456789f, 6.666666f, 0.0033f,
5.0f / 213.0f};
/* -- Variables for reading -- */
uint16_t count16 = 0;
union
{
int32_t Int32;
short Short1;
short Short2[2];
char Char[4];
} unionInt32;
union
{
double dbl;
float flt1;
float flt2;
} auxDblUnion;
void *pVoidArray;
char *pAscii;
char auxCharArray[2 * STRSIZE];
short auxShortArray[2 * N_SIZE];
int32_t auxInt32Array[2 * N_SIZE];
float auxFloatArray[2 * N_SIZE];
double auxDoubleArray[2 * N_SIZE];
double dblDiff, dblDiffLimit;
#define RATIONAL_EPS \
(1.0 / 30000.0) /* reduced difference of rational values, approx 3.3e-5 */
/*-- Fill test data arrays for writing ----------- */
for (i = 0; i < N_SIZE; i++)
{
sprintf(auxTextArrayW[i],
"N%d-String-%d_tttttttttttttttttttttttttttttx", i, i);
}
for (i = 0; i < N_SIZE; i++)
{
auxCharArrayW[i] = (char)(i + 1);
}
for (i = 0; i < N_SIZE; i++)
{
auxShortArrayW[i] = (short)(i + 1) * 7;
}
for (i = 0; i < N_SIZE; i++)
{
auxInt32ArrayW[i] = (i + 1) * 133;
}
for (i = 0; i < N_SIZE; i++)
{
auxFloatArrayW[i] = (float)((i + 1) * 133) / 3.3f;
}
for (i = 0; i < N_SIZE; i++)
{
auxDoubleArrayW[i] = (double)((i + 1) * 3689) / 4.5697;
}
/*-- Setup standard tags of a simple tiff file --*/
if (!TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width))
{
fprintf(stderr, "Can't set ImageWidth tag.\n");
goto failure;
}
if (!TIFFSetField(tif, TIFFTAG_IMAGELENGTH, length))
{
fprintf(stderr, "Can't set ImageLength tag.\n");
goto failure;
}
if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps))
{
fprintf(stderr, "Can't set BitsPerSample tag.\n");
goto failure;
}
if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, SPP))
{
fprintf(stderr, "Can't set SamplesPerPixel tag.\n");
goto failure;
}
if (!TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rows_per_strip))
{
fprintf(stderr, "Can't set SamplesPerPixel tag.\n");
goto failure;
}
if (!TIFFSetField(tif, TIFFTAG_PLANARCONFIG, planarconfig))
{
fprintf(stderr, "Can't set PlanarConfiguration tag.\n");
goto failure;
}
if (!TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, photometric))
{
fprintf(stderr, "Can't set PhotometricInterpretation tag.\n");
goto failure;
}
if (!TIFFSetField(tif, TIFFTAG_XRESOLUTION, auxFloatArrayResolutions[0]))
{
fprintf(stderr, "Can't set TIFFTAG_XRESOLUTION tag.\n");
goto failure;
}
if (!TIFFSetField(tif, TIFFTAG_YRESOLUTION, auxFloatArrayResolutions[1]))
{
fprintf(stderr, "Can't set TIFFTAG_YRESOLUTION tag.\n");
goto failure;
}
if (!TIFFSetField(tif, TIFFTAG_XPOSITION, auxFloatArrayResolutions[2]))
{
fprintf(stderr, "Can't set TIFFTAG_XPOSITION tag.\n");
goto failure;
}
if (!TIFFSetField(tif, TIFFTAG_YPOSITION, auxFloatArrayResolutions[3]))
{
fprintf(stderr, "Can't set TIFFTAG_YPOSITION tag.\n");
goto failure;
}
#define ADDITIONAL_TAGS
#ifdef ADDITIONAL_TAGS
/*-- Additional tags to check Rational standard tags, which are also defined
* as FIELD_CUSTOM */
/*- TIFFTAG_INKSET is a SHORT parameter (TIFF_SHORT, TIFF_SETGET_UINT16)
* with field_bit=FIELD_CUSTOM !! -*/
if (!TIFFSetField(tif, TIFFTAG_INKSET, 34))
{
fprintf(stderr, "Can't set TIFFTAG_INKSET tag.\n");
goto failure;
}
/*- TIFFTAG_PIXAR_FOVCOT is a FLOAT parameter ( TIFF_FLOAT,
* TIFF_SETGET_FLOAT) with field_bit=FIELD_CUSTOM !! -*/
/* - can be written with Double but has to be read with float parameter */
#define PIXAR_FOVCOT_VAL 5.123456789123456789
auxFloat = (float)PIXAR_FOVCOT_VAL;
auxDouble = (double)PIXAR_FOVCOT_VAL;
if (!TIFFSetField(tif, TIFFTAG_PIXAR_FOVCOT, auxDouble))
{
fprintf(stderr, "Can't set TIFFTAG_PIXAR_FOVCOT tag.\n");
goto failure;
}
/*- TIFFTAG_STONITS is a DOUBLE parameter (TIFF_DOUBLE, TIFF_SETGET_DOUBLE)
* with field_bit=FIELD_CUSTOM! Only TIFFTAG_STONITS is a TIFF_DOUBLE, which
* has to be read as DOUBLE!!
*/
#define STONITS_VAL 6.123456789123456789
auxDouble = STONITS_VAL;
auxFloat = (float)auxDouble;
if (!TIFFSetField(tif, TIFFTAG_STONITS, auxDouble))
{
fprintf(stderr, "Can't set TIFFTAG_STONITS tag.\n");
goto failure;
}
/*- TIFFTAG_YCBCRPOSITIONING is a SHORT parameter */
auxInt32 = auxShort = 5;
if (!TIFFSetField(tif, TIFFTAG_YCBCRPOSITIONING, auxInt32))
{
fprintf(stderr, "Can't set TIFFTAG_YCBCRPOSITIONING tag.\n");
goto failure;
}
/* - TIFFTAG_BESTQUALITYSCALE is a Rational parameter, FIELD_CUSTOM and
* TIFF_SETGET_DOUBLE */
/* With Rational2Double upgrade tag is redefined to TIFF_SETGET_FLOAT, but
* can be still written with double. */
#define BESTQUALITYSCALE_VAL 15.3
auxDouble = BESTQUALITYSCALE_VAL;
if (!TIFFSetField(tif, TIFFTAG_BESTQUALITYSCALE, auxDouble))
{
fprintf(stderr, "Can't set TIFFTAG_BESTQUALITYSCALE tag.\n");
goto failure;
}
/* - TIFFTAG_BASELINENOISE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT */
if (!TIFFSetField(tif, TIFFTAG_BASELINENOISE, auxDouble))
{
fprintf(stderr, "Can't set TIFFTAG_BASELINENOISE tag.\n");
goto failure;
}
/*--- For static or variable ARRAYs the case is different ---*/
/*- Variable Array: TIFFTAG_DECODE is a SRATIONAL parameter
* TIFF_SETGET_C16_FLOAT type FIELD_CUSTOM with passcount=1 and variable
* length of array. */
if (!TIFFSetField(tif, TIFFTAG_DECODE, 3, auxFloatArrayN2))
{
fprintf(stderr, "Can't set TIFFTAG_DECODE tag.\n");
goto failure;
}
/*- Variable Array: TIFF_RATIONAL, 0, TIFF_SETGET_C16_FLOAT */
if (!TIFFSetField(tif, TIFFTAG_BLACKLEVEL, 3, auxFloatArrayN1))
{
fprintf(stderr, "Can't set TIFFTAG_BLACKLEVEL tag.\n");
goto failure;
}
/*- Fixed Array: TIFFTAG_DEFAULTCROPSIZE, 2, 2, TIFF_RATIONAL, 0,
* TIFF_SETGET_C0_FLOAT */
if (!TIFFSetField(tif, TIFFTAG_DEFAULTCROPSIZE, &auxFloatArrayW[0]))
{
fprintf(stderr, "Can't set TIFFTAG_DEFAULTCROPSIZE tag.\n");
goto failure;
}
#endif /* -- ADDITIONAL_TAGS -- */
/*================== Rational2Double Interface Check =====================*/
/*-- Check, if the TiffLibrary is compiled with the new interface with
Rational2Double or still uses the old definitions. For that,
TIFF_RATIONAL tags with FIELD_CUSTOM are changed from TIFF_SETGET_DOUBLE
to TIFF_SETGET_FLOAT for the new interface in order to prevent the old
reading behavior. Tags to check: TIFFTAG_BESTQUALITYSCALE,
TIFFTAG_BASELINENOISE, TIFFTAG_BASELINESHARPNESS
*/
fip = TIFFFindField(tif, TIFFTAG_BESTQUALITYSCALE, TIFF_ANY);
tSetFieldType = fip->set_get_field_type;
if (tSetFieldType == TIFF_SETGET_DOUBLE)
{
blnIsRational2Double = FALSE;
}
else
{
blnIsRational2Double = TRUE;
fprintf(stderr, "-- Rational2Double from TIFF tag detected --\n");
}
/*================== Write GPS and EXIF tags =====================*/
/*-- Set dummy EXIF/GPS tag in original tiff-structure in order to reserve
* space for final dir_offset value, */
/* which is properly written at the end. */
dir_offset = 0; /* Zero, in case no Custom-IFD is written */
#define WRITE_GPS_TAGS
#ifdef WRITE_GPS_TAGS
if (!TIFFSetField(tif, TIFFTAG_GPSIFD, dir_offset))
{
fprintf(stderr, "Can't write TIFFTAG_GPSIFD\n");
}
#endif
/*------- And also do the same for the EXIF IFD tag here, because we have to
* save the main directory next ------*/
/*-- Set dummy EXIF/GPS tag in original tiff-structure in order to reserve
* space for final dir_offset value, which is properly written at the end.
*/
#define WRITE_EXIF_TAGS
#ifdef WRITE_EXIF_TAGS
if (!TIFFSetField(tif, TIFFTAG_EXIFIFD, dir_offset))
{
fprintf(stderr, "Can't write TIFFTAG_EXIFIFD\n");
}
#endif
#ifndef WRITEPIXELLAST
/*-- Write dummy pixel data. --*/
if (TIFFWriteScanline(tif, buf, 0, 0) < 0)
{
fprintf(stderr, "Can't write image data.\n");
goto failure;
}
#endif
#ifdef WRITE_GPS_TAGS
#define READ_GPS_TAGS
/*================== Write GPS tags =====================*/
/*-- Save current tiff-directory to file before directory is changed.
* Otherwise it will be lost! */
/* The tif-structure is overwritten/ freshly initialized by any
* "CreateDirectory" */
/*retCode = TIFFCheckpointDirectory(tif);*/ /* does not cleanup
Tiff-Structure */
retCode = TIFFWriteDirectory(tif); /* cleanup Tiff-structure */
/*-- Now create a GPS directory. */
if (TIFFCreateGPSDirectory(tif) != 0)
{
fprintf(stderr, "TIFFCreateGPSDirectory() failed.\n");
goto failure;
}
if (!TIFFSetField(tif, GPSTAG_VERSIONID, gpsVersion))
{
fprintf(stderr, "Can't write GPSTAG_VERSIONID\n");
goto failure;
}
if (blnFillGPSManually)
{
/*================= Write manually valid data to the GPS fields
* ==============*/
if (!TIFFSetField(tif, GPSTAG_LATITUDEREF, "N\0"))
{
fprintf(stderr, "Can't write GPSTAG_LATITUDEREF\n");
goto failure;
}
/*-- Unfortunately, Rational values are defined as SETGET_DOUBLE but are
* internally always stored as float. Single Rational values do not
* matter for writing, because TIFFSetField() uses va_arg() which
* performs "variables promotion" from type float to type double!
* However, for reading of Rational values ONLY float-variables are
* allowed - in contrary to the SETGET_DOUBLE specification at
* tiffFields[] in tif_dirinfo.c.
*/
/*-- ATTENTION: After the upgrade with Rational2Double, the GPSTAG
* values are defined as double precision and need to be written and
* also read in double precision! In order to maintain this code for
* both cases, it is checked above if the TiffLibrary is compiled with
* the new interface with Rational2Double or still uses the old
* definitions, by setting blnIsRational2Double above.
*/
if (blnIsRational2Double)
{
fprintf(stderr,
"-- GPS tags are written using Rational2Double --\n");
}
else
{
fprintf(stderr, "-- GPS tags are written using standard --\n");
}
if (!blnIsRational2Double)
{
for (j = 0; j < 3; j++)
auxFloatArray[j] = (float)auxDoubleArrayGPS1[j];
if (!TIFFSetField(tif, GPSTAG_LATITUDE, auxFloatArray))
{
fprintf(stderr, "Can't write GPSTAG_LATITUDE\n");
goto failure;
}
}
else
{
/* Rational2Double interface for GPSTAG */
if (!TIFFSetField(tif, GPSTAG_LATITUDE, auxDoubleArrayGPS1))
{
fprintf(stderr, "Can't write GPSTAG_LATITUDE\n");
goto failure;
}
}
if (!TIFFSetField(tif, GPSTAG_LONGITUDEREF, "W\0"))
{
fprintf(stderr, "Can't write GPSTAG_LONGITUDEREF\n");
goto failure;
}
if (!blnIsRational2Double)
{
for (j = 0; j < 3; j++)
auxFloatArray[j] = (float)auxDoubleArrayGPS2[j];
if (!TIFFSetField(tif, GPSTAG_LONGITUDE, auxFloatArray))
{
fprintf(stderr, "Can't write GPSTAG_LONGITUDE\n");
goto failure;
}
}
else
{
/* Rational2Double interface for GPSTAG */
if (!TIFFSetField(tif, GPSTAG_LONGITUDE, auxDoubleArrayGPS2))
{
fprintf(stderr, "Can't write GPSTAG_LONGITUDE\n");
goto failure;
}
}
/*-- AltitudeRef: default is above sea level!! */
if (!TIFFSetField(tif, GPSTAG_ALTITUDEREF, 0))
{
fprintf(stderr, "Can't write GPSTAG_ALTITUDEREF\n");
goto failure;
}
if (!TIFFSetField(tif, GPSTAG_ALTITUDE, auxDoubleGPSAltitude))
{
fprintf(stderr, "Can't write GPSTAG_ALTITUDE\n");
goto failure;
}
/*-- TimeStamp is only hh:mm:ss. See also DateTime string */
if (!TIFFSetField(tif, GPSTAG_TIMESTAMP, auxDoubleArrayGPSTime))
{
fprintf(stderr, "Can't write GPSTAG_TIMESTAMP\n");
goto failure;
}
if (!TIFFSetField(tif, GPSTAG_DATESTAMP, "2012:11:04"))
{
fprintf(stderr, "Can't write GPSTAG_DATESTAMP\n");
goto failure;
}
if (!TIFFSetField(tif, GPSTAG_IMGDIRECTIONREF, "T\0"))
{
fprintf(stderr, "Can't write GPSTAG_IMGDIRECTIONREF\n");
goto failure;
}
if (!TIFFSetField(tif, GPSTAG_IMGDIRECTION, auxDoubleGPSDirection))
{
fprintf(stderr, "Can't write GPSTAG_IMGDIRECTION\n");
goto failure;
}
/*-- Type TIFF_UNDEFINED */
if (!TIFFSetField(tif, GPSTAG_PROCESSINGMETHOD, 3, &auxCharArrayW[10]))
{
fprintf(stderr, "Can't write GPSTAG_PROCESSINGMETHOD\n");
goto failure;
}
if (!TIFFSetField(tif, GPSTAG_AREAINFORMATION, 4, &auxCharArrayW[20]))
{
fprintf(stderr, "Can't write GPSTAG_AREAINFORMATION\n");
goto failure;
}
/*-- PSTAG_DIFFERENTIAL , 1, 1, TIFF_SHORT , 0,
* TIFF_SETGET_UINT16 */
if (!TIFFSetField(tif, GPSTAG_DIFFERENTIAL, auxShortArrayW[5]))
{
fprintf(stderr, "Can't write GPSTAG_DIFFERENTIAL\n");
goto failure;
}
/* GPSTAG_GPSHPOSITIONINGERROR , 1, 1, TIFF_RATIONAL , 0,
* TIFF_SETGET_DOUBLE but here written in float-precision */
#define GPSHPOSITIONINGERROR_VAL 0.369
auxFloat = (float)GPSHPOSITIONINGERROR_VAL;
if (!TIFFSetField(tif, GPSTAG_GPSHPOSITIONINGERROR, auxFloat))
{
fprintf(stderr, "Can't write GPSTAG_GPSHPOSITIONINGERROR\n");
goto failure;
}
}
else
{
/*================= Write arbitrary data to the GPS fields
* ==============*/
/*-- Get array, where GPS tag fields are defined --*/
tFieldArray = _TIFFGetGpsFields();
nTags = tFieldArray->count;
/*-- TODO: fill in the for / switch part of EXIF writing, when finished
* and tested!! */
} /*-- if (blnFillGPSManually) --*/
/*-- GPS - write custom directory GPS into file...---*/
/* (Get back the offset of GPS directory) */
if (!TIFFWriteCustomDirectory(tif, &dir_offset_GPS))
{
fprintf(stderr, "TIFFWriteCustomDirectory() with GPS failed.\n");
goto failure;
}
/*--- CheckpointDirectory at this place generates a second Main-IFD!!! */
/* retCode = TIFFCheckpointDirectory(tif); */
/*-- Set / reload previously saved main directory from file ---*/
if (!TIFFSetDirectory(tif, 0))
{
fprintf(stderr, "TIFFSetDirectory() within GPS failed.\n");
goto failure;
}
/*-- Write GPS tag reference / offset into GPSIFD tag in main directory --*/
if (!TIFFSetField(tif, TIFFTAG_GPSIFD, dir_offset_GPS))
{
fprintf(stderr, "Can't write TIFFTAG_GPSIFD\n");
goto failure;
}
/*=============== END writing GPS tags ==========================*/
#endif /*-- WRITE_GPS_TAGS --*/
/*================== Write EXIF 2.31 tags =====================*/
/*-- Set dummy EXIF/GPS tag in original tiff-structure in order to reserve
* space for final dir_offset value, */
/* which is properly written at the end.*/
/*- We did this already above together with the GPS IFD-tag. Otherwise we
* would do this here !! --------*/
/* if (!TIFFSetField(tif, TIFFTAG_EXIFIFD, dir_offset )) {
fprintf (stderr, "Can't write TIFFTAG_EXIFIFD\n" );
}
*/
#ifdef WRITE_EXIF_TAGS
#define READ_EXIF_TAGS
/*-- Save current tiff-directory to file before directory is changed.
* Otherwise it will be lost! The tif-structure is overwritten/ freshly
* initialized by any "CreateDirectory"
*/
/*----- What is needed here ??? ----
* In custom_dir.c only TIFFFreeDirectory( tif ); is used to set
*fields of another Sub-Directory TIFFFreeDirectory(tif); *-- Release
*storage associated with a directory, especially custom-fields.
*-- Using only TIFFFreeDirectory() here leads to an error!!
*-- Using here TIFFCheckpointDirectory() leads to an additional Main-IFD ??
*/
/*retCode = TIFFCheckpointDirectory(tif);*/ /* does not cleanup
Tiff-Structure */
retCode = TIFFWriteDirectory(tif); /* cleanup Tiff-structure */
/*-- Now create an EXIF directory. */
if (TIFFCreateEXIFDirectory(tif) != 0)
{
fprintf(stderr, "TIFFCreateEXIFDirectory() failed.\n");
goto failure;
}
#define WRITE_ALL_EXIF_TAGS
#ifdef WRITE_ALL_EXIF_TAGS
#define READ_ALL_EXIF_TAGS
/*================= EXIF: Write arbitrary data to the EXIF fields
* ==============*/
/*-- Get array, where EXIF tag fields are defined
* EXIF tags are written automatically with the defined precision
* according to its tSetFieldType using the code below --*/
tFieldArray = _TIFFGetExifFields();
nTags = tFieldArray->count;
for (i = 0; i < nTags; i++)
{
bool deferredSetField = false;
tTag = tFieldArray->fields[i].field_tag;
tType = tFieldArray->fields[i].field_type; /* e.g. TIFF_RATIONAL */
tWriteCount = tFieldArray->fields[i].field_writecount;
tSetFieldType = tFieldArray->fields[i]
.set_get_field_type; /* e.g. TIFF_SETGET_C0_FLOAT */
tFieldName = tFieldArray->fields[i].field_name;
pVoid = NULL;
/*-- dependent on set_get_field_type write value --*/
switch (tSetFieldType)
{
case TIFF_SETGET_ASCII:
/* Either the stringlength is defined as a fixed length in
* .field_writecount or a NULL-terminated string is used. */
/* Shorter strings than in auxTextArraxW need a
* NULL-termination. Therefore copy the string. */
if (tWriteCount > 0)
auxInt32 = tWriteCount - 1;
else
auxInt32 = (int32_t)strlen(auxTextArrayW[i]) - 1;
strncpy(auxCharArray, auxTextArrayW[i], auxInt32);
auxCharArray[auxInt32] = 0;
if (!TIFFSetField(tif, tTag, auxCharArray))
{
fprintf(stderr, "Can't write %s\n",
tFieldArray->fields[i].field_name);
goto failure;
}
break;
case TIFF_SETGET_UINT8:
case TIFF_SETGET_UINT16:
case TIFF_SETGET_UINT32:
case TIFF_SETGET_IFD8:
case TIFF_SETGET_INT:
/*-- All those can be written with char, short or long
* parameter. Only value range should be in line. */
if (!TIFFSetField(tif, tTag, auxInt32ArrayW[i]))
{
fprintf(stderr, "Can't write %s\n",
tFieldArray->fields[i].field_name);
goto failure;
}
break;
case TIFF_SETGET_SINT8:
case TIFF_SETGET_SINT16:
case TIFF_SETGET_SINT32:
/*-- All those can be written with char, short or long
* parameter. Only value range should be in line. */
if (!TIFFSetField(tif, tTag, -1.0 * auxInt32ArrayW[i]))
{
fprintf(stderr, "Can't write %s\n",
tFieldArray->fields[i].field_name);
goto failure;
}
break;
case TIFF_SETGET_FLOAT:
case TIFF_SETGET_DOUBLE:
if (tWriteCount == 1)
{
/*-- All single values can be written with float or double
* parameter. Only value range should be in line. */
if (!TIFFSetField(tif, tTag, auxDoubleArrayW[i]))
{
fprintf(stderr, "Can't write %s\n",
tFieldArray->fields[i].field_name);
goto failure;
}
}
else
{
fprintf(stderr,
"WriteCount for .set_get_field_type %d should be "
"1! %s\n",
tSetFieldType, tFieldArray->fields[i].field_name);
}
break;
case TIFF_SETGET_C0_FLOAT:
case TIFF_SETGET_C0_DOUBLE:
case TIFF_SETGET_C16_FLOAT:
case TIFF_SETGET_C16_DOUBLE:
case TIFF_SETGET_C32_FLOAT:
case TIFF_SETGET_C32_DOUBLE:
/* _Cxx_ just defines the size of the count parameter for the
* array as C0=char, C16=short or C32=long */
/*-- Check, if it is a single parameter, a fixed array or a
* variable array */
if (tWriteCount == 1)
{
fprintf(
stderr,
"WriteCount for .set_get_field_type %d should be -1 or "
"greater than 1! %s\n",
tSetFieldType, tFieldArray->fields[i].field_name);
}
else
{
/*-- Either fix or variable array --*/
/* For arrays, distinguishing between float or double is
* essential, even for writing */
if (tSetFieldType == TIFF_SETGET_C0_FLOAT ||
tSetFieldType == TIFF_SETGET_C16_FLOAT ||
tSetFieldType == TIFF_SETGET_C32_FLOAT)
pVoid = &auxFloatArrayW[i];
else
pVoid = &auxDoubleArrayW[i];
/* Now decide between fixed or variable array */
if (tWriteCount > 1)
{
/* fixed array with needed arraysize defined in
* .field_writecount */
if (!TIFFSetField(tif, tTag, pVoid))
{
fprintf(stderr, "Can't write %s\n",
tFieldArray->fields[i].field_name);
goto failure;
}
}
else
{
/* special treatment of variable array */
/* for test, use always arraysize of VARIABLE_ARRAY_SIZE
*/
if (!TIFFSetField(tif, tTag, VARIABLE_ARRAY_SIZE,
pVoid))
{
fprintf(stderr, "Can't write %s\n",
tFieldArray->fields[i].field_name);
goto failure;
}
}
}
break;
case TIFF_SETGET_C0_UINT8:
case TIFF_SETGET_C0_SINT8:
case TIFF_SETGET_C16_UINT8:
case TIFF_SETGET_C16_SINT8:
case TIFF_SETGET_C32_UINT8:
case TIFF_SETGET_C32_SINT8:
/* For arrays, distinguishing between float or double is
* essential, even for writing */
pVoid = &auxCharArrayW[i];
deferredSetField = true;
break;
case TIFF_SETGET_C0_UINT16:
case TIFF_SETGET_C0_SINT16:
case TIFF_SETGET_C16_UINT16:
case TIFF_SETGET_C16_SINT16:
case TIFF_SETGET_C32_UINT16:
case TIFF_SETGET_C32_SINT16:
pVoid = &auxShortArrayW[i];
deferredSetField = true;
break;
case TIFF_SETGET_C0_UINT32:
case TIFF_SETGET_C0_SINT32:
case TIFF_SETGET_C16_UINT32:
case TIFF_SETGET_C16_SINT32:
case TIFF_SETGET_C32_UINT32:
case TIFF_SETGET_C32_SINT32:
pVoid = &auxInt32ArrayW[i];
deferredSetField = true;
break;
default:
fprintf(stderr,
"SetFieldType %d not defined within writing switch for "
"%s.\n",
tSetFieldType, tFieldName);
}; /*-- switch() --*/
if (deferredSetField)
{
/* _Cxx_ just defines the size of the count parameter for the array
* as C0=char, C16=short or C32=long */
/*-- Check, if it is a single parameter, a fixed array or a variable
* array */
if (tWriteCount == 1)
{
fprintf(stderr,
"WriteCount for .set_get_field_type %d should be -1 or "
"greater than 1! %s\n",
tSetFieldType, tFieldArray->fields[i].field_name);
}
else
{
/*-- Either fix or variable array --*/
/* Now decide between fixed or variable array */
if (tWriteCount > 1)
{
/* fixed array with needed arraysize defined in
* .field_writecount */
if (!TIFFSetField(tif, tTag, pVoid))
{
fprintf(stderr, "Can't write %s\n",
tFieldArray->fields[i].field_name);
goto failure;
}
}
else
{
/* special treatment of variable array */
/* for test, use always arraysize of VARIABLE_ARRAY_SIZE */
if (!TIFFSetField(tif, tTag, VARIABLE_ARRAY_SIZE, pVoid))
{
fprintf(stderr, "Can't write %s\n",
tFieldArray->fields[i].field_name);
goto failure;
}
}
}
}
} /*-- for() --*/
/*================= EXIF: END Writing arbitrary data to the EXIF fields END
* END END ==============*/
#endif /*-- WRITE_ALL_EXIF_TAGS --*/
/*--- Set valid EXIF version, which is a 4 byte string --*/
if (!TIFFSetField(tif, EXIFTAG_EXIFVERSION, exifVersion))
{
fprintf(stderr, "Can't write EXIFTAG_EXIFVERSION\n");
goto failure;
}
/*-- EXIF - write custom directory EXIF into file...---*/
/* (Get back the offset of EXIF directory) */
if (!TIFFWriteCustomDirectory(tif, &dir_offset_EXIF))
{
fprintf(stderr, "TIFFWriteCustomDirectory() with EXIF failed.\n");
goto failure;
}
/*-- Go back to the first (main) directory, and set correct value of the
* EXIFIFD pointer. */
/* (directory is reloaded from file!) */
TIFFSetDirectory(tif, 0);
TIFFSetField(tif, TIFFTAG_EXIFIFD, dir_offset_EXIF);
#endif /*-- WRITE_EXIF_TAGS --*/
#ifdef WRITEPIXELLAST
/*-- Write dummy pixel data. --*/
if (TIFFWriteScanline(tif, buf, 0, 0) < 0)
{
fprintf(stderr, "Can't write image data.\n");
goto failure;
}
#endif
/*-- Write directory to file --*/
/* Always WriteDirectory before using/creating another directory. */
/* Not necessary before TIFFClose(), however, TIFFClose() uses
* TIFFReWriteDirectory(), which forces directory to be written at another
* location. */
retCode = TIFFWriteDirectory(tif);
/*-- Write File to disk and close file --*/
/* TIFFClose() uses TIFFReWriteDirectory(), which forces directory to be
* written at another location. */
/* Therefore, better use TIFFWriteDirectory() before. */
TIFFClose(tif);
fprintf(stderr, "-------- Continue Test ---------- reading ...\n");
/*========================= READING ============= READING
* ========================================*/
/* Ok, now test whether we can read written values correctly. */
tif = TIFFOpen(filenameRead, "r");
/*-- Read some parameters out of the main directory --*/
/*-- IMAGEWIDTH and -LENGTH are defined as TIFF_SETGET_UINT32 */
retCode = TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &auxUint32);
if (!retCode)
{
fprintf(stderr, "Can't read %s\n", "TIFFTAG_IMAGEWIDTH");
}
if (auxUint32 != width)
{
fprintf(stderr,
"Read value of IMAGEWIDTH %" PRIu32
" differs from set value %" PRIu16 "\n",
auxUint32, width);
}