Open CASCADE Technology  7.3.1.dev
Public Member Functions | Protected Attributes
Graphic3d_AttribBuffer Class Reference

Buffer of vertex attributes. This class is intended for advanced usage allowing invalidation of entire buffer content or its sub-part. More...

#include <Graphic3d_AttribBuffer.hxx>

Inheritance diagram for Graphic3d_AttribBuffer:
Inheritance graph
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Public Member Functions

 Graphic3d_AttribBuffer (const Handle< NCollection_BaseAllocator > &theAlloc)
 Empty constructor. More...
 
bool Init (const Standard_Integer theNbElems, const Graphic3d_Attribute *theAttribs, const Standard_Integer theNbAttribs)
 Allocates new empty array. More...
 
bool Init (const Standard_Integer theNbElems, const Graphic3d_Array1OfAttribute &theAttribs)
 Allocates new empty array. More...
 
virtual Standard_Boolean IsMutable () const override
 Return TRUE if data can be invalidated; FALSE by default. More...
 
void SetMutable (Standard_Boolean theMutable)
 Set if data can be invalidated. More...
 
virtual Standard_Boolean IsInterleaved () const override
 Return TRUE for interleaved array; TRUE by default. More...
 
void SetInterleaved (Standard_Boolean theIsInterleaved)
 Setup interleaved/non-interleaved array. WARNING! Filling non-interleaved buffer should be implemented on user side without Graphic3d_Buffer auxiliary methods designed for interleaved data. More...
 
virtual Graphic3d_BufferRange InvalidatedRange () const override
 Return invalidated range. More...
 
virtual void Validate () override
 Reset invalidated range. More...
 
virtual void Invalidate () override
 Invalidate the entire buffer data. More...
 
void Invalidate (Standard_Integer theAttributeIndex)
 Invalidate the entire attribute data. More...
 
void Invalidate (Standard_Integer theAttributeIndex, Standard_Integer theVertexLower, Standard_Integer theVertexUpper)
 Invalidate attribute data within specified sub-range (starting from 0). More...
 
void Invalidate (Standard_Integer theVertexLower, Standard_Integer theVertexUpper)
 Invalidate all attribute data within specified vertex sub-range (starting from 0). More...
 
void invalidate (const Graphic3d_BufferRange &theRange)
 Invalidate specified sub-range of data (as byte offsets). More...
 
- Public Member Functions inherited from Graphic3d_Buffer
 Graphic3d_Buffer (const Handle< NCollection_BaseAllocator > &theAlloc)
 Empty constructor. More...
 
Standard_Integer NbMaxElements () const
 Return number of initially allocated elements which can fit into this buffer, while NbElements can be overwritten to smaller value. More...
 
const Graphic3d_AttributeAttributesArray () const
 
const Graphic3d_AttributeAttribute (const Standard_Integer theAttribIndex) const
 
Graphic3d_AttributeChangeAttribute (const Standard_Integer theAttribIndex)
 
Standard_Integer FindAttribute (Graphic3d_TypeOfAttribute theAttrib) const
 Find attribute index. More...
 
Standard_Integer AttributeOffset (const Standard_Integer theAttribIndex) const
 
const Standard_ByteData (const Standard_Integer theAttribIndex) const
 
Standard_ByteChangeData (const Standard_Integer theAttribIndex)
 
const Standard_Bytevalue (const Standard_Integer theElem) const
 Access specified element. More...
 
Standard_BytechangeValue (const Standard_Integer theElem)
 Access specified element. More...
 
template<typename Type_t >
const Type_t & Value (const Standard_Integer theElem) const
 Access element with specified position and type. More...
 
template<typename Type_t >
Type_t & ChangeValue (const Standard_Integer theElem)
 Access element with specified position and type. More...
 
Standard_ByteChangeAttributeData (Graphic3d_TypeOfAttribute theAttrib, Standard_Integer &theAttribIndex, Standard_Size &theAttribStride)
 Return the attribute data with stride size specific to this attribute. More...
 
const Standard_ByteAttributeData (Graphic3d_TypeOfAttribute theAttrib, Standard_Integer &theAttribIndex, Standard_Size &theAttribStride) const
 Return the attribute data with stride size specific to this attribute. More...
 
void release ()
 Release buffer. More...
 
bool Init (const Standard_Integer theNbElems, const Graphic3d_Attribute *theAttribs, const Standard_Integer theNbAttribs)
 Allocates new empty array. More...
 
bool Init (const Standard_Integer theNbElems, const Graphic3d_Array1OfAttribute &theAttribs)
 Allocates new empty array. More...
 
- Public Member Functions inherited from NCollection_Buffer
 NCollection_Buffer (const Handle< NCollection_BaseAllocator > &theAlloc, const Standard_Size theSize=0, Standard_Byte *theData=NULL)
 Default constructor. When theData is NULL but theSize is not 0 than buffer of specified size will be allocated. More...
 
 ~NCollection_Buffer ()
 Destructor. More...
 
const Standard_ByteData () const
 
Standard_ByteChangeData ()
 
bool IsEmpty () const
 
Standard_Size Size () const
 Return buffer length in bytes. More...
 
const Handle< NCollection_BaseAllocator > & Allocator () const
 
void SetAllocator (const Handle< NCollection_BaseAllocator > &theAlloc)
 Assign new buffer allocator with de-allocation of buffer. More...
 
bool Allocate (const Standard_Size theSize)
 Allocate the buffer. More...
 
void Free ()
 De-allocate buffer. More...
 
- Public Member Functions inherited from Standard_Transient
 Standard_Transient ()
 Empty constructor. More...
 
 Standard_Transient (const Standard_Transient &)
 Copy constructor – does nothing. More...
 
Standard_Transientoperator= (const Standard_Transient &)
 Assignment operator, needed to avoid copying reference counter. More...
 
virtual ~Standard_Transient ()
 Destructor must be virtual. More...
 
virtual void Delete () const
 Memory deallocator for transient classes. More...
 
virtual const opencascade::handle< Standard_Type > & DynamicType () const
 Returns a type descriptor about this object. More...
 
Standard_Boolean IsInstance (const opencascade::handle< Standard_Type > &theType) const
 Returns a true value if this is an instance of Type. More...
 
Standard_Boolean IsInstance (const Standard_CString theTypeName) const
 Returns a true value if this is an instance of TypeName. More...
 
Standard_Boolean IsKind (const opencascade::handle< Standard_Type > &theType) const
 Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
 
Standard_Boolean IsKind (const Standard_CString theTypeName) const
 Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
 
Standard_TransientThis () const
 Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero. More...
 
Standard_Integer GetRefCount () const
 Get the reference counter of this object. More...
 
void IncrementRefCounter () const
 Increments the reference counter of this object. More...
 
Standard_Integer DecrementRefCounter () const
 Decrements the reference counter of this object; returns the decremented value. More...
 

Protected Attributes

Graphic3d_BufferRange myInvalidatedRange
 invalidated buffer data range (as byte offsets) More...
 
Standard_Boolean myIsInterleaved
 flag indicating the vertex attributes being interleaved More...
 
Standard_Boolean myIsMutable
 flag indicating that data can be invalidated More...
 
- Protected Attributes inherited from NCollection_Buffer
Standard_BytemyData
 data pointer More...
 
Standard_Size mySize
 buffer length in bytes More...
 
Handle< NCollection_BaseAllocatormyAllocator
 buffer allocator More...
 

Additional Inherited Members

- Public Types inherited from Standard_Transient
typedef void base_type
 Returns a type descriptor about this object. More...
 
- Static Public Member Functions inherited from Standard_Transient
static const char * get_type_name ()
 Returns a type descriptor about this object. More...
 
static const opencascade::handle< Standard_Type > & get_type_descriptor ()
 Returns type descriptor of Standard_Transient class. More...
 
- Data Fields inherited from Graphic3d_Buffer
Standard_Integer Stride
 the distance to the attributes of the next vertex within interleaved array More...
 
Standard_Integer NbElements
 number of the elements ( More...
 
Standard_Integer NbAttributes
 number of vertex attributes More...
 

Detailed Description

Buffer of vertex attributes. This class is intended for advanced usage allowing invalidation of entire buffer content or its sub-part.

Constructor & Destructor Documentation

◆ Graphic3d_AttribBuffer()

Graphic3d_AttribBuffer::Graphic3d_AttribBuffer ( const Handle< NCollection_BaseAllocator > &  theAlloc)

Empty constructor.

Member Function Documentation

◆ Init() [1/2]

bool Graphic3d_AttribBuffer::Init ( const Standard_Integer  theNbElems,
const Graphic3d_Attribute theAttribs,
const Standard_Integer  theNbAttribs 
)

Allocates new empty array.

◆ Init() [2/2]

bool Graphic3d_AttribBuffer::Init ( const Standard_Integer  theNbElems,
const Graphic3d_Array1OfAttribute theAttribs 
)
inline

Allocates new empty array.

◆ Invalidate() [1/4]

virtual void Graphic3d_AttribBuffer::Invalidate ( )
overridevirtual

Invalidate the entire buffer data.

Reimplemented from Graphic3d_Buffer.

◆ Invalidate() [2/4]

void Graphic3d_AttribBuffer::Invalidate ( Standard_Integer  theAttributeIndex)

Invalidate the entire attribute data.

◆ Invalidate() [3/4]

void Graphic3d_AttribBuffer::Invalidate ( Standard_Integer  theAttributeIndex,
Standard_Integer  theVertexLower,
Standard_Integer  theVertexUpper 
)

Invalidate attribute data within specified sub-range (starting from 0).

◆ Invalidate() [4/4]

void Graphic3d_AttribBuffer::Invalidate ( Standard_Integer  theVertexLower,
Standard_Integer  theVertexUpper 
)

Invalidate all attribute data within specified vertex sub-range (starting from 0).

◆ invalidate()

void Graphic3d_AttribBuffer::invalidate ( const Graphic3d_BufferRange theRange)

Invalidate specified sub-range of data (as byte offsets).

◆ InvalidatedRange()

virtual Graphic3d_BufferRange Graphic3d_AttribBuffer::InvalidatedRange ( ) const
inlineoverridevirtual

Return invalidated range.

Reimplemented from Graphic3d_Buffer.

◆ IsInterleaved()

virtual Standard_Boolean Graphic3d_AttribBuffer::IsInterleaved ( ) const
inlineoverridevirtual

Return TRUE for interleaved array; TRUE by default.

Reimplemented from Graphic3d_Buffer.

◆ IsMutable()

virtual Standard_Boolean Graphic3d_AttribBuffer::IsMutable ( ) const
inlineoverridevirtual

Return TRUE if data can be invalidated; FALSE by default.

Reimplemented from Graphic3d_Buffer.

◆ SetInterleaved()

void Graphic3d_AttribBuffer::SetInterleaved ( Standard_Boolean  theIsInterleaved)

Setup interleaved/non-interleaved array. WARNING! Filling non-interleaved buffer should be implemented on user side without Graphic3d_Buffer auxiliary methods designed for interleaved data.

◆ SetMutable()

void Graphic3d_AttribBuffer::SetMutable ( Standard_Boolean  theMutable)

Set if data can be invalidated.

◆ Validate()

virtual void Graphic3d_AttribBuffer::Validate ( )
inlineoverridevirtual

Reset invalidated range.

Reimplemented from Graphic3d_Buffer.

Field Documentation

◆ myInvalidatedRange

Graphic3d_BufferRange Graphic3d_AttribBuffer::myInvalidatedRange
protected

invalidated buffer data range (as byte offsets)

◆ myIsInterleaved

Standard_Boolean Graphic3d_AttribBuffer::myIsInterleaved
protected

flag indicating the vertex attributes being interleaved

◆ myIsMutable

Standard_Boolean Graphic3d_AttribBuffer::myIsMutable
protected

flag indicating that data can be invalidated


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