#include <BitPackedFloat.hpp>

Inheritance diagram for llama::mapping::BitPackedFloatSoA< TArrayExtents, TRecordDim, ExponentBits, MantissaBits, TLinearizeArrayIndexFunctor, TStoredIntegral >:

Collaboration diagram for llama::mapping::BitPackedFloatSoA< TArrayExtents, TRecordDim, ExponentBits, MantissaBits, TLinearizeArrayIndexFunctor, TStoredIntegral >:

Public Types
using	LinearizeArrayIndexFunctor = TLinearizeArrayIndexFunctor

using	StoredIntegral = TStoredIntegral

Public Types inherited from llama::mapping::MappingBase< TArrayExtents, TRecordDim >
using	ArrayExtents = TArrayExtents

using	RecordDim = TRecordDim

Public Member Functions
constexpr auto	exponentBits () const -> size_type

constexpr auto	mantissaBits () const -> size_type

constexpr	BitPackedFloatSoA (TArrayExtents extents={}, ExponentBits exponentBits={}, MantissaBits mantissaBits={}, TRecordDim={})

constexpr auto	blobSize (size_type) const -> size_type

template<std::size_t... RecordCoords, typename Blobs >
constexpr auto	compute (typename Base::ArrayIndex ai, RecordCoord< RecordCoords... >, Blobs &blobs) const

Public Member Functions inherited from llama::mapping::MappingBase< TArrayExtents, TRecordDim >
constexpr	MappingBase ()=default

constexpr	MappingBase (ArrayExtents extents, RecordDim={})

constexpr auto	extents () const -> ArrayExtents

Public Member Functions inherited from llama::internal::BoxedValue< typename TArrayExtents::value_type, 0 >
	BoxedValue ()=default

	BoxedValue (typename TArrayExtents::value_type value)

constexpr auto	value () const

Public Member Functions inherited from llama::internal::BoxedValue< typename TArrayExtents::value_type, 1 >
	BoxedValue ()=default

	BoxedValue (typename TArrayExtents::value_type value)

constexpr auto	value () const

Static Public Member Functions
template<std::size_t... RecordCoords>
static constexpr auto	isComputed (RecordCoord< RecordCoords... >)

Static Public Attributes
static constexpr std::size_t	blobCount = mp_size<FlatRecordDim<TRecordDim>>::value

Additional Inherited Members
Protected Types inherited from llama::mapping::MappingBase< TArrayExtents, TRecordDim >
using	ArrayIndex = typename ArrayExtents::Index

using	size_type = typename ArrayExtents::value_type

Detailed Description

template<typename TArrayExtents, typename TRecordDim, typename ExponentBits = typename TArrayExtents::value_type, typename MantissaBits = ExponentBits, typename TLinearizeArrayIndexFunctor = LinearizeArrayIndexRight, typename TStoredIntegral = internal::StoredIntegralFor<TRecordDim>>
struct llama::mapping::BitPackedFloatSoA< TArrayExtents, TRecordDim, ExponentBits, MantissaBits, TLinearizeArrayIndexFunctor, TStoredIntegral >

Struct of array mapping using bit packing to reduce size/precision of floating-point data types. The bit layout is [1 sign bit, exponentBits bits from the exponent, mantissaBits bits from the mantissa]+ and tries to follow IEEE 754. Infinity and NAN are supported. If the packed exponent bits are not big enough to hold a number, it will be set to infinity (preserving the sign). If your record dimension contains non-floating-point types, split them off using the Split mapping first.

Template Parameters

ExponentBits	If ExponentBits is llama::Constant<N>, the compile-time N specifies the number of bits to use to store the exponent. If ExponentBits is llama::Value<T>, the number of bits is specified at runtime, passed to the constructor and stored as type T. Must not be zero.
MantissaBits	Like ExponentBits but for the mantissa bits. Must not be zero (otherwise values turn INF).
TLinearizeArrayIndexFunctor	Defines how the array dimensions should be mapped into linear numbers and how big the linear domain gets.
TStoredIntegral	Integral type used as storage of reduced precision floating-point values.

Definition at line 207 of file BitPackedFloat.hpp.