diff options
Diffstat (limited to 'chalk/core/kis_exif_value.cc')
| -rw-r--r-- | chalk/core/kis_exif_value.cc | 678 |
1 files changed, 678 insertions, 0 deletions
diff --git a/chalk/core/kis_exif_value.cc b/chalk/core/kis_exif_value.cc new file mode 100644 index 00000000..1b7bcf32 --- /dev/null +++ b/chalk/core/kis_exif_value.cc @@ -0,0 +1,678 @@ +/* + * 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").tqarg(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").tqarg(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").tqarg(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").tqarg(i) ) ).isNull() ) + { + r.numerator = (TQ_UINT32)0; + } else { + r.numerator = (TQ_UINT32) attr.toUInt(); + } + if( (attr = elmt.attribute(TQString("denominator%1").tqarg(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").tqarg(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").tqarg(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").tqarg(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").tqarg(i) ) ).isNull() ) + { + r.numerator = (TQ_INT32)0; + } else { + r.numerator = (TQ_INT32) attr.toInt(); + } + if( (attr = elmt.attribute(TQString("denominator%1").tqarg(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").tqarg(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").tqarg(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").tqarg(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").tqarg(i), asShort( i ) ); + break; + case EXIF_TYPE_LONG: + for(uint i = 0; i < components(); i++) + elmt.setAttribute(TQString("value%1").tqarg(i), asLong( i ) ); + break; + case EXIF_TYPE_RATIONAL: + for(uint i = 0; i < components(); i++) + { + KisExifRational r = asRational(i); + elmt.setAttribute(TQString("numerator%1").tqarg(i), r.numerator ); + elmt.setAttribute(TQString("denominator%1").tqarg(i), r.denominator ); + } + break; + case EXIF_TYPE_SBYTE: + for(uint i = 0; i < components(); i++) + elmt.setAttribute(TQString("value%1").tqarg(i), asSByte( i ) ); + break; + case EXIF_TYPE_UNDEFINED: + { + UByteArray value = asUndefined(); + TQByteArray data; + data.setRawData((char*)value.data(), value.size()); + TQByteArray tqencodedData; + KCodecs::base64Encode( data, tqencodedData ); + data.resetRawData( (char*)value.data(), value.size()); + elmt.setAttribute("value", TQString(tqencodedData)); + } + break; + case EXIF_TYPE_SSHORT: + for(uint i = 0; i < components(); i++) + elmt.setAttribute(TQString("value%1").tqarg(i), asSShort( i ) ); + break; + case EXIF_TYPE_SLONG: + for(uint i = 0; i < components(); i++) + elmt.setAttribute(TQString("value%1").tqarg(i), asSLong( i ) ); + break; + case EXIF_TYPE_SRATIONAL: + for(uint i = 0; i < components(); i++) + { + KisExifSRational r = asSRational(i); + elmt.setAttribute(TQString("numerator%1").tqarg(i), r.numerator ); + elmt.setAttribute(TQString("denominator%1").tqarg(i), r.denominator ); + } + break; + case EXIF_TYPE_FLOAT: + for(uint i = 0; i < components(); i++) + elmt.setAttribute(TQString("value%1").tqarg(i), asFloat( i ) ); + break; + case EXIF_TYPE_DOUBLE: + for(uint i = 0; i < components(); i++) + elmt.setAttribute(TQString("value%1").tqarg(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++) + { + set16Bit( (*data) + 2 * i, order, &asExifNumber(i).m_short); + } + return; + } + case EXIF_TYPE_LONG: + { + *size = 4*components(); + *data = new uchar[*size]; + for(uint i = 0; i < components(); i++) + { + set32Bit( (*data) + 4 * i, order, &asExifNumber(i).m_long); + } + 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++) + { + set16Bit( (*data) + 2 * i, order, (TQ_UINT16*)&asExifNumber(i).m_sshort); + } + return; + case EXIF_TYPE_SLONG: + *size = 4*components(); + *data = new uchar[*size]; + for(uint i = 0; i < components(); i++) + { + set32Bit( (*data) + 4 * i, order, (TQ_UINT32*)&asExifNumber(i).m_slong); + } + return; + case EXIF_TYPE_SRATIONAL: + *size = 8*components(); + *data = new uchar[*size]; + for(uint i = 0; i < components(); i++) + { + ExifNumber n = asExifNumber(i); + set32Bit( (*data) + 4 * i, order, (TQ_UINT32*)&asExifNumber(i).m_srational.numerator); + set32Bit( (*data) + 4 * i + 4, order, (TQ_UINT32*)&asExifNumber(i).m_srational.denominator); + } + return; + case EXIF_TYPE_FLOAT: + *size = 4*components(); + *data = new uchar[*size]; + for(uint i = 0; i < components(); i++) + { + set32Bit( (*data) + 4 * i, order, (TQ_UINT32*)&asExifNumber(i).m_float); + } + return; + case EXIF_TYPE_DOUBLE: + *size = 8*components(); + *data = new uchar[*size]; + for(uint i = 0; i < components(); i++) + { + set64Bit( (*data) + 4 * i, order, (TQ_UINT64*)&asExifNumber(i).m_double); + } + 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 ").tqarg( asExifNumber( i ).m_byte ); + case EXIF_TYPE_SHORT: + return TQString("%1 ").tqarg( asExifNumber( i ).m_short ); + case EXIF_TYPE_LONG: + return TQString("%1 ").tqarg( asExifNumber( i ).m_long ); + case EXIF_TYPE_RATIONAL: + return TQString("%1 / %2 ").tqarg( asExifNumber( i ).m_rational.numerator ).tqarg( asExifNumber( i ).m_rational.denominator ); + case EXIF_TYPE_SBYTE: + return TQString("%1 ").tqarg( asExifNumber( i ).m_sbyte ); + case EXIF_TYPE_SSHORT: + return TQString("%1 ").tqarg( asExifNumber( i ).m_sshort ); + case EXIF_TYPE_SLONG: + return TQString("%1 ").tqarg( asExifNumber( i ).m_slong ); + case EXIF_TYPE_SRATIONAL: + return TQString("%1 / %2 ").tqarg( asExifNumber( i ).m_srational.numerator ).tqarg( asExifNumber( i ).m_srational.denominator ); + case EXIF_TYPE_FLOAT: + return TQString("%1 ").tqarg( asExifNumber( i ).m_float ); + case EXIF_TYPE_DOUBLE: + return TQString("%1 ").tqarg( asExifNumber( i ).m_double ); + default: + return "unknow "; + } +} + |