A abstract base class for pure cpu computation. More...

Inheritance diagram for HdNullBufferSource:

Public Member Functions
virtual HD_API TfToken const &	GetName () const override
	Return the name of this buffer source. More...

virtual HD_API void const *	GetData () const override
	Following interfaces will be called after Resolve. More...

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

virtual HD_API size_t	GetNumElements () const override
	Returns the number of elements (e.g. More...

virtual HD_API HdTupleType	GetTupleType () const override
	Returns the data type and count (array size) for this buffer source. More...

virtual HD_API void	GetBufferSpecs (HdBufferSpecVector *specs) const override
	Add the buffer spec for this buffer source into given bufferspec vector. More...

Public Member Functions inherited from HdBufferSource
virtual bool	Resolve ()=0
	Prepare the access of GetData(). More...

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...

Additional Inherited Members
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...

virtual bool	_CheckValid () const =0
	Checks the validity of the source buffer. More...