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/*
Copyright 2008 Brain Research Institute, Melbourne, Australia
Written by J-Donald Tournier, 27/06/08.
This file is part of MRtrix.
MRtrix 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 3 of the License, or
(at your option) any later version.
MRtrix 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 MRtrix. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __data_type_h__
#define __data_type_h__
#include "mrtrix.h"
namespace MR {
class DataType {
protected:
guchar dt;
public:
DataType ();
DataType (guchar type);
DataType (const DataType& DT);
guchar& operator() ();
const guchar& operator() () const;
bool operator== (guchar type) const;
bool operator!= (guchar type) const;
bool operator== (const DataType DT) const;
bool operator!= (const DataType DT) const;
const DataType& operator= (const DataType DT);
bool is (guchar type) const;
bool is_complex () const;
bool is_signed () const;
bool is_little_endian () const;
bool is_big_endian () const;
void set_byte_order_native ();
void parse (const String& spec);
guint bits () const;
guint bytes () const;
const gchar* description () const;
const gchar* specifier () const;
void set_flag (guchar flag);
void unset_flag (guchar flag);
static const guchar ComplexNumber = 0x10U;
static const guchar Signed = 0x20U;
static const guchar LittleEndian = 0x40U;
static const guchar BigEndian = 0x80U;
static const guchar Text = 0xFFU;
static const guchar GroupStart = 0xFEU;
static const guchar GroupEnd = 0xFDU;
static const guchar Undefined = 0x00U;
static const guchar Bit = 0x01U;
static const guchar UInt8 = 0x02U;
static const guchar UInt16 = 0x03U;
static const guchar UInt32 = 0x04U;
static const guchar Float32 = 0x05U;
static const guchar Float64 = 0x06U;
static const guchar Int8 = UInt8 | Signed;
static const guchar Int16 = UInt16 | Signed;
static const guchar Int16LE = UInt16 | Signed | LittleEndian;
static const guchar UInt16LE = UInt16 | LittleEndian;
static const guchar Int16BE = UInt16 | Signed | BigEndian;
static const guchar UInt16BE = UInt16 | BigEndian;
static const guchar Int32 = UInt32 | Signed;
static const guchar Int32LE = UInt32 | Signed | LittleEndian;
static const guchar UInt32LE = UInt32 | LittleEndian;
static const guchar Int32BE = UInt32 | Signed | BigEndian;
static const guchar UInt32BE = UInt32 | BigEndian;
static const guchar Float32LE = Float32 | LittleEndian;
static const guchar Float32BE = Float32 | BigEndian;
static const guchar Float64LE = Float64 | LittleEndian;
static const guchar Float64BE = Float64 | BigEndian;
static const guchar CFloat32 = ComplexNumber | Float32;
static const guchar CFloat32LE = ComplexNumber | Float32 | LittleEndian;
static const guchar CFloat32BE = ComplexNumber | Float32 | BigEndian;
static const guchar CFloat64 = ComplexNumber | Float64;
static const guchar CFloat64LE = ComplexNumber | Float64 | LittleEndian;
static const guchar CFloat64BE = ComplexNumber | Float64 | BigEndian;
static const guchar Native = Float32 |
#if G_BYTE_ORDER == G_BIG_ENDIAN
BigEndian;
#else
LittleEndian;
#endif
};
inline DataType::DataType () :
#ifdef BYTE_ORDER_BIG_ENDIAN
dt (DataType::Float32BE)
#else
dt (DataType::Float32LE)
#endif
{ }
inline DataType::DataType (guchar type) : dt (type) { }
inline DataType::DataType (const DataType& DT) : dt (DT.dt) { }
inline guchar& DataType::operator() () { return (dt); }
inline const guchar& DataType::operator() () const { return (dt); }
inline bool DataType::operator== (guchar type) const { return (dt == type); }
inline bool DataType::operator!= (guchar type) const { return (dt != type); }
inline bool DataType::operator== (const DataType DT) const { return (dt == DT.dt); }
inline bool DataType::operator!= (const DataType DT) const { return (dt != DT.dt); }
inline const DataType& DataType::operator= (const DataType DT) { dt = DT.dt; return (*this); }
inline guint DataType::bytes () const { return ((bits()+7)/8); }
inline bool DataType::is (guchar type) const { return (dt == type); }
inline bool DataType::is_complex () const { return (dt & ComplexNumber); }
inline bool DataType::is_signed () const { return (dt & Signed); }
inline bool DataType::is_little_endian () const { return (dt & LittleEndian); }
inline bool DataType::is_big_endian() const { return (dt & BigEndian); }
inline void DataType::set_flag (guchar flag) { dt |= flag; }
inline void DataType::unset_flag (guchar flag) { dt &= ~flag; }
inline void DataType::set_byte_order_native ()
{
if ( dt != Bit && dt != Int8 && dt != UInt8 ) {
if ( !is_little_endian() && !is_big_endian() ) {
#if G_BYTE_ORDER == G_BIG_ENDIAN
dt |= BigEndian;
#else
dt |= LittleEndian;
#endif
}
}
}
}
#endif
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