inviwo::LayerRAM Class Reference

Inheritance diagram for inviwo::LayerRAM:

Public Member Functions
	LayerRAM (LayerType type=LayerType::Color, const DataFormatBase *format=DataVec4UInt8::get())
	LayerRAM (const LayerRAM &rhs)=default
LayerRAM &	operator= (const LayerRAM &that)=default
LayerRAM *	clone () const override=0
virtual bool	copyRepresentationsTo (LayerRepresentation *) const override
virtual void *	getData ()=0
virtual const void *	getData () const =0
virtual void	setData (void *data, size2_t dimensions)=0
virtual double	getAsDouble (const size2_t &pos) const =0
virtual dvec2	getAsDVec2 (const size2_t &pos) const =0
virtual dvec3	getAsDVec3 (const size2_t &pos) const =0
virtual dvec4	getAsDVec4 (const size2_t &pos) const =0
virtual void	setFromDouble (const size2_t &pos, double val)=0
virtual void	setFromDVec2 (const size2_t &pos, dvec2 val)=0
virtual void	setFromDVec3 (const size2_t &pos, dvec3 val)=0
virtual void	setFromDVec4 (const size2_t &pos, dvec4 val)=0
virtual double	getAsNormalizedDouble (const size2_t &pos) const =0
virtual dvec2	getAsNormalizedDVec2 (const size2_t &pos) const =0
virtual dvec3	getAsNormalizedDVec3 (const size2_t &pos) const =0
virtual dvec4	getAsNormalizedDVec4 (const size2_t &pos) const =0
virtual void	setFromNormalizedDouble (const size2_t &pos, double val)=0
virtual void	setFromNormalizedDVec2 (const size2_t &pos, dvec2 val)=0
virtual void	setFromNormalizedDVec3 (const size2_t &pos, dvec3 val)=0
virtual void	setFromNormalizedDVec4 (const size2_t &pos, dvec4 val)=0
virtual std::type_index	getTypeIndex () const override final
template<typename Result , template< class > class Predicate = dispatching::filter::All, typename Callable , typename... Args>
auto	dispatch (Callable &&callable, Args &&... args) -> Result
template<typename Result , template< class > class Predicate = dispatching::filter::All, typename Callable , typename... Args>
auto	dispatch (Callable &&callable, Args &&... args) const -> Result
Public Member Functions inherited from inviwo::LayerRepresentation
virtual void	setDimensions (size2_t dimensions)=0
virtual const size2_t &	getDimensions () const =0
virtual void	setSwizzleMask (const SwizzleMask &mask)=0
	update the swizzle mask of the channels for sampling color layers Needs to be overloaded by child classes. More...
virtual SwizzleMask	getSwizzleMask () const =0
LayerType	getLayerType () const
Public Member Functions inherited from inviwo::DataRepresentation< Layer >
const DataFormatBase *	getDataFormat () const
std::string	getDataFormatString () const
DataFormatId	getDataFormatId () const
void	setOwner (Layer *owner)
Layer *	getOwner ()
const Layer *	getOwner () const
bool	isValid () const
void	setValid (bool valid)

Static Public Member Functions
static size_t	posToIndex (const size2_t &pos, const size2_t &dim)

Additional Inherited Members
Public Types inherited from inviwo::DataRepresentation< Layer >
using	ReprOwner = Layer
Protected Member Functions inherited from inviwo::LayerRepresentation
	LayerRepresentation (LayerType type=LayerType::Color, const DataFormatBase *format=DataVec4UInt8::get())
	LayerRepresentation (const LayerRepresentation &rhs)=default
LayerRepresentation &	operator= (const LayerRepresentation &that)=default
void	updateBaseMetaFromRepresentation ()
Protected Member Functions inherited from inviwo::DataRepresentation< Layer >
	DataRepresentation (const DataFormatBase *format)
	DataRepresentation (const DataRepresentation &rhs)=default
DataRepresentation &	operator= (const DataRepresentation &that)=default
void	setDataFormat (const DataFormatBase *format)
Protected Attributes inherited from inviwo::LayerRepresentation
LayerType	layerType_
Protected Attributes inherited from inviwo::DataRepresentation< Layer >
bool	isValid_
const DataFormatBase *	dataFormatBase_
Layer *	owner_

Member Function Documentation

copyRepresentationsTo()

bool inviwo::LayerRAM::copyRepresentationsTo ( LayerRepresentation *  targetLayerRam ) const

overridevirtual

Copy and resize the representations of this onto the target.

Implements inviwo::LayerRepresentation.

dispatch() [1/2]

template<typename Result , template< class > class Predicate, typename Callable , typename... Args>

auto inviwo::LayerRAM::dispatch	(	Callable &&	callable,
		Args &&...	args
	)		-> Result

Dispatch functionality to retrieve the actual underlaying LayerRamPrecision. The dispatcher takes a generic lambda as argument. Code will be instantiated for all the DataFormat types by default. But by suppling the template Predicate argument the list of formats to instantiate can be filtered. Hence if one knows that only Vector types are applicable there is no need to write generic code that also works for scalars.

Example of counting the number of elements larger then 0:

LayerRam* layerram = ...; // of some glm vector type.
auto count = layerram->dispatch<size_t, dispatching::filter::Vecs>([](auto lrprecision) {
    using LayerType = util::PrecisionType<decltype(lrprecision)>;
    using ValueType = util::PrecisionValueType<decltype(lrprecision)>;

    T* data = lrprecision->getDataTyped();
    auto dim = lrprecision->getDimensions();
    return std::count_if(data, data + dim.x * dim.y,
                         [](auto x){return x > ValueType{0};});
});

Template arguments:

• Result the return type of the lambda.
• Predicate A type that is used to filter the list of types to consider in the dispatching. The dispatching::filter namespace have a few standard ones predefined.

Predicates:

• All Matches all formats, default.
• Floats Matches all floating point types. float, double, half, vec2, dvec3,...
• Integers Matches all integer types, i.e. int, ivec2, uvec3...
• Scalars Matches all scalar types, i.e. int, char, long, float, ...
• Vecs Matches all glm vector types, i.e. vec3, ivec3, uvec4,...
• VecNs Matches all glm vector types of length N. N = 2,3,4.
• FloatNs Matches all floating point glm vector types of length N. N = 2,3,4.

Parameters

callable	This should be a generic lambda or a struct with a generic call operator. it will be called with the specific LayerRamPresision<T> as the first argument and any additional arguments (args) appended to that.
args	Any additional arguments that should be passed on to the lambda.

Exceptions

dispatching::DispatchException

in the case that the format of the buffer is not in the list of formats after the filtering.

dispatch() [2/2]

template<typename Result , template< class > class Predicate, typename Callable , typename... Args>

auto inviwo::LayerRAM::dispatch	(	Callable &&	callable,
		Args &&...	args
	)		const -> Result

Const overload. Callable will be called with a const LayerRamPresision<T> pointer.

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The documentation for this class was generated from the following files:

• layerram.h
• layerram.cpp