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/*
* Copyright (c) 2008-2018 the MRtrix3 contributors.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at http://mozilla.org/MPL/2.0/
*
* MRtrix3 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.
*
* For more details, see http://www.mrtrix.org/
*/
#ifndef __data_type_h__
#define __data_type_h__
#include "cmdline_option.h"
#ifdef Complex
# undef Complex
#endif
namespace MR
{
class DataType { NOMEMALIGN
public:
DataType () noexcept : dt (DataType::Native) { }
DataType (uint8_t type) noexcept : dt (type) { }
DataType (const DataType&) noexcept = default;
DataType (DataType&&) noexcept = default;
DataType& operator= (const DataType&) noexcept = default;
DataType& operator= (DataType&&) noexcept = default;
bool undefined () const {
return dt == Undefined;
}
uint8_t operator() () const {
return dt;
}
bool operator== (uint8_t type) const {
return dt == type;
}
bool operator!= (uint8_t type) const {
return dt != type;
}
bool operator== (const DataType DT) const {
return dt == DT.dt;
}
bool operator!= (const DataType DT) const {
return dt != DT.dt;
}
bool is (uint8_t type) const {
return dt == type;
}
bool is_complex () const {
return dt & Complex;
}
bool is_signed () const {
return dt & Signed;
}
bool is_little_endian () const {
return dt & LittleEndian;
}
bool is_big_endian () const {
return dt & BigEndian;
}
bool is_integer () const {
const uint8_t type = dt & Type;
return ((type == UInt8) || (type == UInt16) || (type == UInt32) || (type == UInt64));
}
bool is_floating_point () const {
const uint8_t type = dt & Type;
return ((type == Float32) || (type == Float64));
}
void set_byte_order_native () {
if (dt != Bit && dt != Int8 && dt != UInt8) {
if (!is_little_endian() && !is_big_endian()) {
#ifdef MRTRIX_BYTE_ORDER_BIG_ENDIAN
dt |= BigEndian;
#else
dt |= LittleEndian;
#endif
}
}
}
size_t bits () const;
size_t bytes () const {
return (bits() +7) /8;
}
const char* description () const;
const char* specifier () const;
void set_flag (uint8_t flag) {
dt |= flag;
}
void unset_flag (uint8_t flag) {
dt &= ~flag;
}
template <typename T>
static DataType from () { return DataType::Undefined; }
static DataType native (DataType dt) {
dt.set_byte_order_native();
return dt;
}
static DataType parse (const std::string& spec);
static DataType from_command_line (DataType default_datatype = Undefined);
static constexpr uint8_t Attributes = 0xF0U;
static constexpr uint8_t Type = 0x0FU;
static constexpr uint8_t Complex = 0x10U;
static constexpr uint8_t Signed = 0x20U;
static constexpr uint8_t LittleEndian = 0x40U;
static constexpr uint8_t BigEndian = 0x80U;
static constexpr uint8_t Undefined = 0x00U;
static constexpr uint8_t Bit = 0x01U;
static constexpr uint8_t UInt8 = 0x02U;
static constexpr uint8_t UInt16 = 0x03U;
static constexpr uint8_t UInt32 = 0x04U;
static constexpr uint8_t UInt64 = 0x05U;
static constexpr uint8_t Float32 = 0x06U;
static constexpr uint8_t Float64 = 0x07U;
static constexpr uint8_t Int8 = UInt8 | Signed;
static constexpr uint8_t Int16 = UInt16 | Signed;
static constexpr uint8_t Int16LE = UInt16 | Signed | LittleEndian;
static constexpr uint8_t UInt16LE = UInt16 | LittleEndian;
static constexpr uint8_t Int16BE = UInt16 | Signed | BigEndian;
static constexpr uint8_t UInt16BE = UInt16 | BigEndian;
static constexpr uint8_t Int32 = UInt32 | Signed;
static constexpr uint8_t Int32LE = UInt32 | Signed | LittleEndian;
static constexpr uint8_t UInt32LE = UInt32 | LittleEndian;
static constexpr uint8_t Int32BE = UInt32 | Signed | BigEndian;
static constexpr uint8_t UInt32BE = UInt32 | BigEndian;
static constexpr uint8_t Int64 = UInt64 | Signed;
static constexpr uint8_t Int64LE = UInt64 | Signed | LittleEndian;
static constexpr uint8_t UInt64LE = UInt64 | LittleEndian;
static constexpr uint8_t Int64BE = UInt64 | Signed | BigEndian;
static constexpr uint8_t UInt64BE = UInt64 | BigEndian;
static constexpr uint8_t Float32LE = Float32 | LittleEndian;
static constexpr uint8_t Float32BE = Float32 | BigEndian;
static constexpr uint8_t Float64LE = Float64 | LittleEndian;
static constexpr uint8_t Float64BE = Float64 | BigEndian;
static constexpr uint8_t CFloat32 = Complex | Float32;
static constexpr uint8_t CFloat32LE = Complex | Float32 | LittleEndian;
static constexpr uint8_t CFloat32BE = Complex | Float32 | BigEndian;
static constexpr uint8_t CFloat64 = Complex | Float64;
static constexpr uint8_t CFloat64LE = Complex | Float64 | LittleEndian;
static constexpr uint8_t CFloat64BE = Complex | Float64 | BigEndian;
static constexpr uint8_t Native = Float32 |
#ifdef MRTRIX_BYTE_ORDER_BIG_ENDIAN
BigEndian;
#else
LittleEndian;
#endif
static App::OptionGroup options ();
static const char* identifiers[];
friend std::ostream& operator<< (std::ostream& stream, const DataType& dt) {
stream << dt.specifier();
return stream;
}
protected:
uint8_t dt;
};
template <> inline DataType DataType::from<bool> ()
{
return DataType::Bit;
}
template <> inline DataType DataType::from<int8_t> ()
{
return DataType::Int8;
}
template <> inline DataType DataType::from<uint8_t> ()
{
return DataType::UInt8;
}
template <> inline DataType DataType::from<int16_t> ()
{
return DataType::native (DataType::Int16);
}
template <> inline DataType DataType::from<uint16_t> ()
{
return DataType::native (DataType::UInt16);
}
template <> inline DataType DataType::from<int32_t> ()
{
return DataType::native (DataType::Int32);
}
template <> inline DataType DataType::from<uint32_t> ()
{
return DataType::native (DataType::UInt32);
}
template <> inline DataType DataType::from<int64_t> ()
{
return DataType::native (DataType::Int64);
}
template <> inline DataType DataType::from<uint64_t> ()
{
return DataType::native (DataType::UInt64);
}
template <> inline DataType DataType::from<float> ()
{
return DataType::native (DataType::Float32);
}
template <> inline DataType DataType::from<double> ()
{
return DataType::native (DataType::Float64);
}
template <> inline DataType DataType::from<cfloat> ()
{
return DataType::native (DataType::CFloat32);
}
template <> inline DataType DataType::from<cdouble> ()
{
return DataType::native (DataType::CFloat64);
}
}
#endif
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