DefaultDataFactoryTraits.h

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/*
 * MIT License
 * 
 * Copyright (c) 2018 PulsarSearchSoft
 * 
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#ifndef PSS_ASTROTYPES_SIGPROC_DEFAULTDATAFACTORYTRAITS_H
#define PSS_ASTROTYPES_SIGPROC_DEFAULTDATAFACTORYTRAITS_H


namespace pss {
namespace astrotypes {
namespace sigproc {

template<std::size_t nbits>
struct BitToUnsignedInt {
    static constexpr unsigned next = 0; // last one
};

template<>
struct BitToUnsignedInt<64> {
    typedef uint32_t type;
    static constexpr unsigned next = 0; // last one
};

template<>
struct BitToUnsignedInt<32> {
    typedef uint32_t type;
    static constexpr unsigned next = 64;
};

template<>
struct BitToUnsignedInt<16> {
    typedef uint16_t type;
    static constexpr unsigned next = 32;
};

template<>
struct BitToUnsignedInt<8> {
    typedef uint8_t type;
    static constexpr unsigned next = 16;
};

template<unsigned nifs, unsigned nbits, template<unsigned> class BitTypeMap>
struct ElementType {
    typedef std::array<typename BitTypeMap<nbits>::type, nifs> type;
};

template<unsigned nbits, template<unsigned> class BitTypeMap>
struct ElementType<1, nbits, BitTypeMap> {
    typedef typename BitTypeMap<nbits>::type type;
};

template<unsigned nbits, template<unsigned> class BitTypeMap>
struct ElementType<0, nbits, BitTypeMap> {
    typedef typename BitTypeMap<nbits>::type type;
};

struct DefaultDataFactoryTraits {

    static constexpr unsigned MaxNifs = 1; // maximum number of data for each channel (e.g 4 polarisations)

    template<unsigned nbits>
    struct BitsTypeMap : public BitToUnsignedInt<nbits> {};

    template<typename T>
    using AllocatorMap = std::allocator<T>;

    template<unsigned nifs, unsigned nbits>
    using ElementTypeMap = ElementType<nifs, nbits, BitsTypeMap>; 
    
};


} // namespace sigproc
} // namespace astrotypes
} // namespace pss

#endif // PSS_ASTROTYPES_SIGPROC_DEFAULTDATAFACTORYTRAITS_H