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/*
------------------------------------------------------------------------------
MetaCam - Extract EXIF information from digital camera files, with
support for Vendor specific blocks.
Copyright (C) 2000 Daniel Stephens (daniel@cheeseplant.org)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
------------------------------------------------------------------------------
*/
#include <iostream>
#include <errno.h>
#include <cstring>
#include <netinet/in.h>
#include "metatiff.h"
#include "datatiff.h"
static const char *rcsid __attribute__((unused))="$Id: tiffdata.cc,v 1.2 2002/09/02 19:20:01 daniel Exp $";
unsigned char
_TIFFDataSource::getUByte()
{
unsigned char b;
if (getData((unsigned char *)&b, 1) != 1) return 0;
return b;
}
unsigned short
_TIFFDataSource::getUShort()
{
unsigned short s;
if (getData((unsigned char *)&s, 2) != 2) return 0;
if (bigEndian()) {return ntohs(s);}
return s;
}
unsigned long
_TIFFDataSource::getULong()
{
unsigned long l;
if (getData((unsigned char *)&l, 4) != 4) return 0;
if (bigEndian()) {return ntohl(l);}
return l;
}
signed char
_TIFFDataSource::getSByte()
{
signed char b;
if (getData((unsigned char *)&b, 1) != 1) return 0;
return b;
}
signed short
_TIFFDataSource::getSShort()
{
signed short s;
if (getData((unsigned char *)&s, 2) != 2) return 0;
if (bigEndian()) {return ntohs(s);}
return s;
}
signed long
_TIFFDataSource::getSLong()
{
signed long l;
if (getData((unsigned char *)&l, 4) != 4) return 0;
if (bigEndian()) {return ntohl(l);}
return l;
}
IFD
_TIFFDataSource::getIFD()
{
return IFD(new _DataIFD(TIFFDataSource(this), 0));
}
IFD
_TIFFDataSource::getIFD(unsigned long ofs)
{
return IFD(new _DataIFD(TIFFDataSource(this), ofs));
}
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