Hd Buffer Source that binds a primvar to a Ext Computation output. More...

Inheritance diagram for HdExtCompPrimvarBufferSource:

Public Member Functions
HD_API	HdExtCompPrimvarBufferSource (const TfToken &primvarName, const HdExtCompCpuComputationSharedPtr &source, const TfToken &sourceOutputName, const HdTupleType &valueType)
	Constructs a new primvar buffer source called primvarName and binds it to the output called sourceOutputName from the computation identified by source. More...

virtual HD_API TfToken const &	GetName () const override
	Returns the name of the primvar. More...

virtual HD_API void	GetBufferSpecs (HdBufferSpecVector *specs) const override
	Adds this Primvar's buffer description to the buffer spec vector. More...

virtual HD_API size_t	ComputeHash () const override
	Computes and returns a hash value for the underlying data. More...

virtual HD_API bool	Resolve () override
	Extracts the primvar from the source computation. More...

virtual HD_API void const *	GetData () const override
	Returns a raw pointer to the primvar data. More...

virtual HD_API HdTupleType	GetTupleType () const override
	Returns the tuple data format of the primvar data. More...

virtual HD_API size_t	GetNumElements () const override
	Returns a count of the number of elements. More...

Public Member Functions inherited from HdBufferSource
bool	IsResolved () const
	Returns true it this computation has already been resolved. More...

bool	HasResolveError () const
	Returns true if an error occurred during resolve. More...

HD_API bool	IsValid () const
	Checks the validity of the source buffer. More...

virtual HD_API bool	HasPreChainedBuffer () const
	Returns true if this buffer has a pre-chained buffer. More...

virtual HD_API HdBufferSourceSharedPtr	GetPreChainedBuffer () const
	Returns the pre-chained buffer. More...

virtual HD_API bool	HasChainedBuffer () const
	Returns true if this buffer has any chained buffer(s) More...

virtual HD_API HdBufferSourceSharedPtrVector	GetChainedBuffers () const
	Returns the vector of chained buffers. More...

Protected Member Functions
virtual HD_API bool	_CheckValid () const override
	Returns true if the binding to the source computation was successful. More...

Protected Member Functions inherited from HdBufferSource
void	_SetResolved ()
	Marks this buffer source as resolved. More...

void	_SetResolveError ()
	Called during Resolve() to indicate an unrecoverable failure occurred and the results of the computation can not be used. More...

bool	_TryLock ()
	Non-blocking lock acquisition. More...

Friends
template<class HashState >
void	TfHashAppend (HashState &h, HdExtCompPrimvarBufferSource const &)

Detailed Description

Hd Buffer Source that binds a primvar to a Ext Computation output.

This buffer source is compatible with being bound to a Bar.

Definition at line 44 of file extCompPrimvarBufferSource.h.

Constructor & Destructor Documentation

HD_API HdExtCompPrimvarBufferSource	(	const TfToken &	primvarName,
		const HdExtCompCpuComputationSharedPtr &	source,
		const TfToken &	sourceOutputName,
		const HdTupleType &	valueType
	)

Constructs a new primvar buffer source called primvarName and binds it to the output called sourceOutputName from the computation identified by source.

Default value provides type information for the primvar and may be used in the event of an error.