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koffice/chalk/core/kis_exif_value.cpp

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/*
* This file is part of Chalk
*
* Copyright (c) 2006 Cyrille Berger <cberger@cberger.net>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "kis_exif_value.h"
#include <kdebug.h>
#include <kmdcodec.h>
namespace {
void set16Bit (unsigned char *data, ExifValue::ByteOrder order, const TQ_UINT16* value)
{
switch (order) {
case ExifValue::BYTE_ORDER_MOTOROLA:
data[0] = (unsigned char) (*value >> 8);
data[1] = (unsigned char) *value;
break;
case ExifValue::BYTE_ORDER_INTEL:
data[0] = (unsigned char) *value;
data[1] = (unsigned char) (*value >> 8);
break;
}
}
void get16Bit (const unsigned char *data, ExifValue::ByteOrder order, TQ_UINT16* value)
{
switch (order) {
case ExifValue::BYTE_ORDER_MOTOROLA:
*value = ((data[0] << 8) | data[1]);
break;
case ExifValue::BYTE_ORDER_INTEL:
*value = ((data[1] << 8) | data[0]);
break;
}
}
void get32Bit (const unsigned char *data, ExifValue::ByteOrder order, TQ_UINT32* value)
{
switch (order) {
case ExifValue::BYTE_ORDER_MOTOROLA:
*value = ((data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3]);
break;
case ExifValue::BYTE_ORDER_INTEL:
*value = ((data[3] << 24) | (data[2] << 16) | (data[1] << 8) | data[0]);
}
}
void set32Bit(unsigned char *data, ExifValue::ByteOrder order, const TQ_UINT32* value)
{
switch (order) {
case ExifValue::BYTE_ORDER_MOTOROLA:
data[0] = (unsigned char) (*value >> 24);
data[1] = (unsigned char) (*value >> 16);
data[2] = (unsigned char) (*value >> 8);
data[3] = (unsigned char) *value;
break;
case ExifValue::BYTE_ORDER_INTEL:
data[3] = (unsigned char) (*value >> 24);
data[2] = (unsigned char) (*value >> 16);
data[1] = (unsigned char) (*value >> 8);
data[0] = (unsigned char) *value;
break;
}
}
void get64Bit (const unsigned char *data, ExifValue::ByteOrder order, TQ_UINT64* value)
{
switch (order) {
case ExifValue::BYTE_ORDER_MOTOROLA:
*value = (((TQ_UINT64)data[0] << 56) | ((TQ_UINT64)data[1] << 48) | ((TQ_UINT64)data[2] << 40) | ((TQ_UINT64)data[3] << 32) | ((TQ_UINT64)data[4] << 24) | ((TQ_UINT64)data[5] << 16) | ((TQ_UINT64)data[6] << 8) | (TQ_UINT64)data[7]);
break;
case ExifValue::BYTE_ORDER_INTEL:
*value = (((TQ_UINT64)data[7] << 56) | ((TQ_UINT64)data[6] << 48) | ((TQ_UINT64)data[5] << 40) | ((TQ_UINT64)data[4] << 32) | ((TQ_UINT64)data[3] << 24) | ((TQ_UINT64)data[2] << 16) | ((TQ_UINT64)data[1] << 8) | (TQ_UINT64)data[0]);
}
}
void set64Bit(unsigned char *data, ExifValue::ByteOrder order, const TQ_UINT64* value)
{
switch (order) {
case ExifValue::BYTE_ORDER_MOTOROLA:
data[0] = (unsigned char) (*value >> 56);
data[1] = (unsigned char) (*value >> 48);
data[2] = (unsigned char) (*value >> 40);
data[3] = (unsigned char) (*value >> 32);
data[4] = (unsigned char) (*value >> 24);
data[5] = (unsigned char) (*value >> 16);
data[6] = (unsigned char) (*value >> 8);
data[7] = (unsigned char) *value;
break;
case ExifValue::BYTE_ORDER_INTEL:
data[7] = (unsigned char) (*value >> 56);
data[6] = (unsigned char) (*value >> 48);
data[5] = (unsigned char) (*value >> 40);
data[4] = (unsigned char) (*value >> 32);
data[3] = (unsigned char) (*value >> 24);
data[2] = (unsigned char) (*value >> 16);
data[1] = (unsigned char) (*value >> 8);
data[0] = (unsigned char) *value;
break;
}
}
}
ExifValue::ExifValue(ExifType ntype, unsigned char *data, unsigned int size, int ifd, uint ncomponents, ExifValue::ByteOrder order ) : m_ifd(ifd), m_type(ntype), m_components(ncomponents), m_value(0)
{
allocData();
setValue(data, size, order);
}
void ExifValue::allocData()
{
if( type() != EXIF_TYPE_ASCII && type() != EXIF_TYPE_UNDEFINED)
{
m_value = new ExifNumber[components()];
} else if ( type() == EXIF_TYPE_ASCII )
{
m_value = new TQString();
} else if ( type() == EXIF_TYPE_UNDEFINED)
{
m_value = new UByteArray();
}
}
bool ExifValue::load(const TQDomElement& elmt)
{
TQString attr;
if( (attr = elmt.attribute("ifd")).isNull() )
return false;
m_ifd = attr.toInt();
if( (attr = elmt.attribute("components")).isNull() )
return false;
m_components = attr.toInt();
if( (attr = elmt.attribute("type")).isNull() )
return false;
m_type = (ExifValue::ExifType)attr.toInt();
allocData();
switch(type())
{
case EXIF_TYPE_BYTE:
for(uint i = 0; i < components(); i++)
{
if( (attr = elmt.attribute(TQString("value%1").arg(i) ) ).isNull() )
{
setValue(i, (TQ_UINT8)0);
} else {
setValue(i, (TQ_UINT8) attr.toUInt());
}
}
break;
case EXIF_TYPE_ASCII:
setAsAscii( elmt.attribute("value" ) );
break;
case EXIF_TYPE_SHORT:
for(uint i = 0; i < components(); i++)
{
if( (attr = elmt.attribute(TQString("value%1").arg(i) ) ).isNull() )
{
setValue(i, (TQ_UINT16)0);
} else {
setValue(i, (TQ_UINT16) attr.toUInt());
}
}
break;
case EXIF_TYPE_LONG:
for(uint i = 0; i < components(); i++)
{
if( (attr = elmt.attribute(TQString("value%1").arg(i) ) ).isNull() )
{
setValue(i, (TQ_UINT32)0);
} else {
setValue(i, (TQ_UINT32) attr.toUInt());
}
}
break;
case EXIF_TYPE_RATIONAL:
for(uint i = 0; i < components(); i++)
{
KisExifRational r;
if( (attr = elmt.attribute(TQString("numerator%1").arg(i) ) ).isNull() )
{
r.numerator = (TQ_UINT32)0;
} else {
r.numerator = (TQ_UINT32) attr.toUInt();
}
if( (attr = elmt.attribute(TQString("denominator%1").arg(i) ) ).isNull() )
{
r.denominator = (TQ_UINT32)0;
} else {
r.denominator = (TQ_UINT32) attr.toUInt();
}
setValue(i, r);
}
break;
case EXIF_TYPE_SBYTE:
for(uint i = 0; i < components(); i++)
{
if( (attr = elmt.attribute(TQString("value%1").arg(i) ) ).isNull() )
{
setValue(i, (TQ_INT8)0);
} else {
setValue(i, (TQ_INT8) attr.toInt());
}
}
break;
case EXIF_TYPE_UNDEFINED:
{
TQString instr = elmt.attribute("value");
TQByteArray out;
TQByteArray in = instr.utf8();
KCodecs::base64Decode( in, out);
out.resize(out.size() - 2 );
setAsUndefined((uchar*)out.data(), out.size() );
}
break;
case EXIF_TYPE_SSHORT:
for(uint i = 0; i < components(); i++)
{
if( (attr = elmt.attribute(TQString("value%1").arg(i) ) ).isNull() )
{
setValue(i, (TQ_INT16)0);
} else {
setValue(i, (TQ_INT16) attr.toInt());
}
}
break;
case EXIF_TYPE_SLONG:
for(uint i = 0; i < components(); i++)
{
if( (attr = elmt.attribute(TQString("value%1").arg(i) ) ).isNull() )
{
setValue(i, (TQ_INT32)0);
} else {
setValue(i, (TQ_INT32) attr.toInt());
}
}
break;
case EXIF_TYPE_SRATIONAL:
for(uint i = 0; i < components(); i++)
{
KisExifSRational r;
if( (attr = elmt.attribute(TQString("numerator%1").arg(i) ) ).isNull() )
{
r.numerator = (TQ_INT32)0;
} else {
r.numerator = (TQ_INT32) attr.toInt();
}
if( (attr = elmt.attribute(TQString("denominator%1").arg(i) ) ).isNull() )
{
r.denominator = (TQ_UINT32)0;
} else {
r.denominator = (TQ_UINT32) attr.toInt();
}
setValue(i, r);
}
break;
case EXIF_TYPE_FLOAT:
for(uint i = 0; i < components(); i++)
{
if( (attr = elmt.attribute(TQString("value%1").arg(i) ) ).isNull() )
{
setValue(i, (float)0);
} else {
setValue(i, (float) attr.toFloat());
}
}
break;
case EXIF_TYPE_DOUBLE:
for(uint i = 0; i < components(); i++)
{
if( (attr = elmt.attribute(TQString("value%1").arg(i) ) ).isNull() )
{
setValue(i, (double)0);
} else {
setValue(i, (double) attr.toDouble());
}
}
break;
case EXIF_TYPE_UNKNOW:
break;
}
return true;
}
TQDomElement ExifValue::save(TQDomDocument& doc)
{
TQDomElement elmt = doc.createElement("ExifValue");
elmt.setAttribute("ifd", ifd());
elmt.setAttribute("components", components() );
elmt.setAttribute("type", type() );
switch(type())
{
case EXIF_TYPE_BYTE:
for(uint i = 0; i < components(); i++)
elmt.setAttribute(TQString("value%1").arg(i), asByte( i ) );
break;
case EXIF_TYPE_ASCII:
elmt.setAttribute("value", asAscii() );
break;
case EXIF_TYPE_SHORT:
for(uint i = 0; i < components(); i++)
elmt.setAttribute(TQString("value%1").arg(i), asShort( i ) );
break;
case EXIF_TYPE_LONG:
for(uint i = 0; i < components(); i++)
elmt.setAttribute(TQString("value%1").arg(i), asLong( i ) );
break;
case EXIF_TYPE_RATIONAL:
for(uint i = 0; i < components(); i++)
{
KisExifRational r = asRational(i);
elmt.setAttribute(TQString("numerator%1").arg(i), r.numerator );
elmt.setAttribute(TQString("denominator%1").arg(i), r.denominator );
}
break;
case EXIF_TYPE_SBYTE:
for(uint i = 0; i < components(); i++)
elmt.setAttribute(TQString("value%1").arg(i), asSByte( i ) );
break;
case EXIF_TYPE_UNDEFINED:
{
UByteArray value = asUndefined();
TQByteArray data;
data.setRawData((char*)value.data(), value.size());
TQByteArray encodedData;
KCodecs::base64Encode( data, encodedData );
data.resetRawData( (char*)value.data(), value.size());
elmt.setAttribute("value", TQString(encodedData));
}
break;
case EXIF_TYPE_SSHORT:
for(uint i = 0; i < components(); i++)
elmt.setAttribute(TQString("value%1").arg(i), asSShort( i ) );
break;
case EXIF_TYPE_SLONG:
for(uint i = 0; i < components(); i++)
elmt.setAttribute(TQString("value%1").arg(i), asSLong( i ) );
break;
case EXIF_TYPE_SRATIONAL:
for(uint i = 0; i < components(); i++)
{
KisExifSRational r = asSRational(i);
elmt.setAttribute(TQString("numerator%1").arg(i), r.numerator );
elmt.setAttribute(TQString("denominator%1").arg(i), r.denominator );
}
break;
case EXIF_TYPE_FLOAT:
for(uint i = 0; i < components(); i++)
elmt.setAttribute(TQString("value%1").arg(i), asFloat( i ) );
break;
case EXIF_TYPE_DOUBLE:
for(uint i = 0; i < components(); i++)
elmt.setAttribute(TQString("value%1").arg(i), asDouble( i ) );
break;
case EXIF_TYPE_UNKNOW:
break;
}
return elmt;
}
void ExifValue::setValue(const unsigned char *data, unsigned int size, ExifValue::ByteOrder order)
{
switch(type())
{
case EXIF_TYPE_BYTE:
if( size == components() )
{
ExifNumber n;
for(uint i = 0; i < components(); i++)
{
n.m_byte = data[i];
setAsExifNumber( i, n);
}
}
break;
case EXIF_TYPE_ASCII:
setAsAscii((char*) data);
break;
case EXIF_TYPE_SHORT:
if( size == 2*components() )
{
ExifNumber n;
for(uint i = 0; i < components(); i++)
{
get16Bit( data + 2 * i, order, &n.m_short);
setAsExifNumber( i, n);
}
}
break;
case EXIF_TYPE_LONG:
if( size == 4*components() )
{
ExifNumber n;
for(uint i = 0; i < components(); i++)
{
get32Bit( data + 4 * i, order, &n.m_long);
setAsExifNumber( i, n);
}
}
break;
case EXIF_TYPE_RATIONAL:
if( size == 8*components() )
{
ExifNumber n;
for(uint i = 0; i < components(); i++)
{
get32Bit( data + 8 * i, order, &n.m_rational.numerator);
get32Bit( data + 8 * i + 4, order, &n.m_rational.denominator);
setAsExifNumber( i, n);
}
}
break;
case EXIF_TYPE_SBYTE:
if( size == components() )
{
ExifNumber n;
for(uint i = 0; i < components(); i++)
{
n.m_sbyte = ((TQ_INT8*)data)[i];
setAsExifNumber( i, n);
}
}
break;
case EXIF_TYPE_UNDEFINED:
setAsUndefined(data, size);
break;
case EXIF_TYPE_SSHORT:
if( size == 2*components() )
{
ExifNumber n;
for(uint i = 0; i < components(); i++)
{
get16Bit( data + 2 * i, order, (TQ_UINT16*)&n.m_sshort);
setAsExifNumber( i, n);
}
}
break;
case EXIF_TYPE_SLONG:
if( size == 4*components() )
{
ExifNumber n;
for(uint i = 0; i < components(); i++)
{
get32Bit( data + 4 * i, order, (TQ_UINT32*)&n.m_slong);
setAsExifNumber( i, n);
}
}
break;
case EXIF_TYPE_SRATIONAL:
if( size == 8*components() )
{
ExifNumber n;
for(uint i = 0; i < components(); i++)
{
get32Bit( data + 8 * i, order, (TQ_UINT32*)&n.m_srational.numerator);
get32Bit( data + 8 * i + 4, order, (TQ_UINT32*)&n.m_srational.denominator);
setAsExifNumber( i, n);
}
}
break;
case EXIF_TYPE_FLOAT:
if( size == 4*components() )
{
ExifNumber n;
for(uint i = 0; i < components(); i++)
{
get32Bit( data + 4 * i, order, (TQ_UINT32*)&n.m_float);
setAsExifNumber( i, n);
}
}
break;
case EXIF_TYPE_DOUBLE:
if( size == 8*components() )
{
ExifNumber n;
for(uint i = 0; i < components(); i++)
{
get64Bit( data + 8 * i, order, (TQ_UINT64*)&n.m_double);
setAsExifNumber( i, n);
}
}
break;
case EXIF_TYPE_UNKNOW:
break;
}
}
void ExifValue::convertToData(unsigned char ** data, unsigned int* size, ExifValue::ByteOrder order)
{
switch(type())
{
case EXIF_TYPE_BYTE:
*size = components();
*data = new uchar[*size];
for(uint i = 0; i < components(); i++)
{
(*data)[i] = asExifNumber(i).m_byte;
}
return;
case EXIF_TYPE_ASCII:
{
TQString str = asAscii();
*size = str.length();
*data = new uchar[ *size ];
uchar* ptr = *data;
memcpy(ptr, str.ascii(), (*size)*sizeof(uchar));
}
return;
break;
case EXIF_TYPE_SHORT:
{
*size = 2*components();
*data = new uchar[*size];
for(uint i = 0; i < components(); i++)
{
TQ_UINT16 aenms = asExifNumber(i).m_short;
set16Bit( (*data) + 2 * i, order, &aenms);
}
return;
}
case EXIF_TYPE_LONG:
{
*size = 4*components();
*data = new uchar[*size];
for(uint i = 0; i < components(); i++)
{
TQ_UINT32 aenml = asExifNumber(i).m_long;
set32Bit( (*data) + 4 * i, order, &aenml);
}
return;
}
case EXIF_TYPE_RATIONAL:
*size = 8*components();
*data = new uchar[*size];
for(uint i = 0; i < components(); i++)
{
ExifNumber n = asExifNumber(i);
set32Bit( (*data) + 8 * i, order, &n.m_rational.numerator);
set32Bit( (*data) + 8 * i + 4, order, &n.m_rational.denominator);
}
return;
case EXIF_TYPE_SBYTE:
*size = components();
*data = new uchar[*size];
for(uint i = 0; i < components(); i++)
{
*(((TQ_INT8*)*data) + i) = asExifNumber(i).m_sbyte;
}
return;
case EXIF_TYPE_UNDEFINED:
{
UByteArray array = asUndefined();
*size = array.size();
*data = new uchar[*size];
memcpy( *data, array.data(), (*size)*sizeof(unsigned char));
}
return;
case EXIF_TYPE_SSHORT:
*size = 2*components();
*data = new uchar[*size];
for(uint i = 0; i < components(); i++)
{
TQ_INT16 aenmss = asExifNumber(i).m_sshort;
set16Bit( (*data) + 2 * i, order, (TQ_UINT16*)&aenmss);
}
return;
case EXIF_TYPE_SLONG:
*size = 4*components();
*data = new uchar[*size];
for(uint i = 0; i < components(); i++)
{
TQ_INT32 aenmsl = asExifNumber(i).m_slong;
set32Bit( (*data) + 4 * i, order, (TQ_UINT32*)&aenmsl);
}
return;
case EXIF_TYPE_SRATIONAL:
*size = 8*components();
*data = new uchar[*size];
for(uint i = 0; i < components(); i++)
{
ExifNumber n = asExifNumber(i);
TQ_INT32 aenmsr_numerator = asExifNumber(i).m_srational.numerator;
TQ_INT32 aenmsr_denominator = asExifNumber(i).m_srational.denominator;
set32Bit( (*data) + 4 * i, order, (TQ_UINT32*)&aenmsr_numerator);
set32Bit( (*data) + 4 * i + 4, order, (TQ_UINT32*)&aenmsr_denominator);
}
return;
case EXIF_TYPE_FLOAT:
*size = 4*components();
*data = new uchar[*size];
for(uint i = 0; i < components(); i++)
{
float aenmf = asExifNumber(i).m_float;
set32Bit( (*data) + 4 * i, order, (TQ_UINT32*)&aenmf);
}
return;
case EXIF_TYPE_DOUBLE:
*size = 8*components();
*data = new uchar[*size];
for(uint i = 0; i < components(); i++)
{
double aenmd = asExifNumber(i).m_double;
set64Bit( (*data) + 4 * i, order, (TQ_UINT64*)&aenmd);
}
return;
case EXIF_TYPE_UNKNOW:
break;
}
}
TQString ExifValue::toString()
{
switch(type())
{
case EXIF_TYPE_ASCII:
return asAscii();
case EXIF_TYPE_UNDEFINED:
{
TQString undefined = "undefined";
UByteArray array = asUndefined();
for(uint i = 0; i < components(); i++)
{
undefined += "\\" + TQString().setNum( array[i] );
}
return undefined;
}
default:
{
TQString str = "";
for(uint i = 0; i < components(); i++)
{
str += toString(i);
}
return str;
}
}
}
TQString ExifValue::toString(uint i)
{
switch(type())
{
case EXIF_TYPE_BYTE:
return TQString("%1 ").arg( asExifNumber( i ).m_byte );
case EXIF_TYPE_SHORT:
return TQString("%1 ").arg( asExifNumber( i ).m_short );
case EXIF_TYPE_LONG:
return TQString("%1 ").arg( asExifNumber( i ).m_long );
case EXIF_TYPE_RATIONAL:
return TQString("%1 / %2 ").arg( asExifNumber( i ).m_rational.numerator ).arg( asExifNumber( i ).m_rational.denominator );
case EXIF_TYPE_SBYTE: {
/* workaround to compiler bug on Raspbian Wheezy */
TQ_INT8 o_sbyte = asExifNumber( i ).m_sbyte;
return TQString("%1 ").arg( o_sbyte );
}
case EXIF_TYPE_SSHORT:
return TQString("%1 ").arg( asExifNumber( i ).m_sshort );
case EXIF_TYPE_SLONG:
return TQString("%1 ").arg( asExifNumber( i ).m_slong );
case EXIF_TYPE_SRATIONAL:
return TQString("%1 / %2 ").arg( asExifNumber( i ).m_srational.numerator ).arg( asExifNumber( i ).m_srational.denominator );
case EXIF_TYPE_FLOAT:
return TQString("%1 ").arg( asExifNumber( i ).m_float );
case EXIF_TYPE_DOUBLE:
return TQString("%1 ").arg( asExifNumber( i ).m_double );
default:
return "unknow ";
}
}
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