LDM buffer object optimized for in memory reader tile data. More...

#include <LDM/tiles/SoCpuBufferFromVolumeReader.h>

Inheritance diagram for SoCpuBufferFromVolumeReader:

Public Member Functions
	SoCpuBufferFromVolumeReader (SoDataSet *dataset, SoLDMTileID tileId)
	Constructor with dataset and tile Id as parameter.

virtual void	map (SoBufferObject *targetBufferObject, SoBufferObject::AccessMode accessMode, size_t startPosition, size_t mappingSize=SO_BUFFER_SIZE_ALL)
	Map the current buffer object into the specified buffer object.

virtual void	map (SoCpuBufferObject *targetBufferObject, SoBufferObject::AccessMode accessMode, size_t startPosition=0, size_t mappingSize=SO_BUFFER_SIZE_ALL)
	Map the current buffer object into the specified CPU buffer object.

virtual void	map (SoGLBufferObject *targetBufferObject, SoBufferObject::AccessMode accessMode, size_t startPosition=0, size_t mappingSize=SO_BUFFER_SIZE_ALL)
	Map the current buffer object into the specified GL buffer object.

virtual void *	map (SoBufferObject::AccessMode accessMode, size_t offset=0, size_t count=SO_BUFFER_SIZE_ALL)
	Map the buffer to a system memory address and allows the mapping of a sub part of the buffer object into CPU memory.

virtual void	unmap (SoCpuBufferObject *bufferObject)
	Unmap the specified CPU buffer object It is defined just to speed up the call when the type of the object is known.

virtual void	unmap (SoGLBufferObject *bufferObject)
	Unmap the specified GL buffer object It is defined just to speed up the call when the type of the object is known.

void	unmap (SoBufferObject *bufferObject)
	Unmap the specified buffer object It is defined just to speed up the call when the type of the object is known.

virtual void	unmap ()
	Unmap a mapped buffer.

bool	getMinMax (double &min, double &max)
	Get the min and max values in the buffer, if they are known.

size_t	getRealSize () const
	Returns the real size of the buffer in bytes.

Public Member Functions inherited from SoCpuBufferObject
	SoCpuBufferObject ()
	Default constructor.

	SoCpuBufferObject (void *buffer, size_t size)
	Constructor that takes an existing block of CPU memory.

void	setBuffer (void *buffer, size_t size)
	Request that the buffer object manage an existing block of memory.

virtual SoBufferObject *	createInstance () const
	Create a new buffer with the same properties as the current one.

virtual void	clearInstance ()
	This function clears the content of the buffer, it frees the memory if the mode was COPY.

Public Member Functions inherited from SoBufferObject
void	lockBuffer ()
	Locks the buffer against concurrent calls from different threads.

void	unlockBuffer ()
	Unlocks the buffer object.

virtual bool	setSize (size_t size)
	Sets the size in bytes of the buffer object.

virtual size_t	getSize () const
	Returns the size, in bytes, of the buffer object.

virtual void	memcpy (SoBufferObject *sourceBufferObject, size_t destOffset=0, size_t sourceOffset=0, size_t copySize=SO_BUFFER_SIZE_ALL)
	Copies data from the specified buffer object into this buffer object.

virtual void	memset (void *value, size_t valueSize=1, size_t offset=0, size_t count=SO_BUFFER_SIZE_ALL)
	This function sets the contents of (or a portion of) this buffer object to the specified value.

SoDeviceContext *	getContext () const
	Returns the device context where this buffer is valid.

SoBufferObject *	getMappedBufferObject () const
	Returns a pointer to the buffer object which is mapped by the actual object.

AccessMode	getMappedBufferObjectAccessMode ()
	Returns the access mode used for the buffer mapping.

size_t	getMappedBufferObjectPosition () const
	Returns the position in the source buffer mapped in this buffer.

size_t	getMappedBufferObjectSize () const
	Returns the size of the mapped area in bytes.

Public Member Functions inherited from SoRefCounter
void	ref () const
	Adds a reference to an instance.

void	unref () const
	Removes a reference from an instance.

void	unrefNoDelete () const
	unrefNoDelete() should be called when it is desired to decrement the reference count, but not delete the instance if this brings the reference count to zero.

int	getRefCount () const
	Returns current reference count.

void	lock () const
	lock this instance.

void	unlock () const
	unlock this instance.

Public Member Functions inherited from SoTypedObject
virtual SoType	getTypeId () const =0
	Returns the type identifier for a specific instance.

SbBool	isOfType (const SoType &type) const
	Returns TRUE if this object is of the type specified in type or is derived from that type.

template<typename TypedObjectClass >
SbBool	isOfType () const
	Returns TRUE if this object is of the type of class TypedObjectClass or is derived from that class.

Public Member Functions inherited from SoBufferPropertiesInterface
	SoBufferPropertiesInterface ()
	Default constructor.

virtual	~SoBufferPropertiesInterface ()
	Destructor.

Public Member Functions inherited from SoLDMBufferObjectInterface
	SoLDMBufferObjectInterface ()
	Default constructor.

virtual	~SoLDMBufferObjectInterface ()
	Destructor.

virtual void	prefetch ()
	Simply expand the given buffer to OIV cache.

Friends
class	SoCpuBufferFromVolumeReaderImpl

Additional Inherited Members
Public Types inherited from SoBufferObject
enum	AccessMode { READ_ONLY , SET , READ_WRITE }
	This enum provides the possible access modes for a mapped buffer object. More...

Static Public Member Functions inherited from SoBufferObject
static SoCpuBufferObjectCache *	getBufferObjectCache ()
	Returns the cache manager object.

Static Public Member Functions inherited from SoTypedObject
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

Detailed Description

LDM buffer object optimized for in memory reader tile data.

Constructor & Destructor Documentation

◆ SoCpuBufferFromVolumeReader()

SoCpuBufferFromVolumeReader::SoCpuBufferFromVolumeReader	(	SoDataSet *	dataset,
		SoLDMTileID	tileId
	)

Constructor with dataset and tile Id as parameter.

Parameters

dataset	pointer to dataset associated with buffer
tileId	tileId representing the tile the buffer will store

Member Function Documentation

◆ getMinMax()

bool SoCpuBufferFromVolumeReader::getMinMax	(	double &	min,
		double &	max
	)

virtual

Get the min and max values in the buffer, if they are known.

Returns false if these values have not been set or computed. Returns true if values are available.

Parameters

min	user variable to store min value
max	user variable to store max value

Implements SoBufferPropertiesInterface.

◆ getRealSize()

size_t SoCpuBufferFromVolumeReader::getRealSize ( ) const

virtual

Returns the real size of the buffer in bytes.

Implements SoBufferPropertiesInterface.

◆ map() [1/4]

virtual void SoCpuBufferFromVolumeReader::map	(	SoBufferObject *	targetBufferObject,
		SoBufferObject::AccessMode	accessMode,
		size_t	startPosition,
		size_t	mappingSize = `SO_BUFFER_SIZE_ALL`
	)

virtual

Map the current buffer object into the specified buffer object.

It is useful in order to use a buffer in multiple contexts.

Parameters

targetBufferObject	The buffer object which will be the mapped version of this buffer.
accessMode	The access mode used for the mapping.
startPosition	offset in source buffer to map from (default is start of buffer).
mappingSize	size from the startPosition, if SO_BUFFER_SIZE_ALL then the whole buffer is mapped.

Reimplemented from SoBufferObject.

◆ map() [2/4]

virtual void * SoCpuBufferFromVolumeReader::map	(	SoBufferObject::AccessMode	accessMode,
		size_t	offset = `0`,
		size_t	count = `SO_BUFFER_SIZE_ALL`
	)

virtual

Map the buffer to a system memory address and allows the mapping of a sub part of the buffer object into CPU memory.

Notes:

The unmap() method must be called before using the buffer.

Returns: Pointer to data in the mapped region of the buffer memory.

Reimplemented from SoBufferObject.

◆ map() [3/4]

virtual void SoCpuBufferFromVolumeReader::map	(	SoCpuBufferObject *	targetBufferObject,
		SoBufferObject::AccessMode	accessMode,
		size_t	startPosition = `0`,
		size_t	mappingSize = `SO_BUFFER_SIZE_ALL`
	)

virtual

Map the current buffer object into the specified CPU buffer object.

See the general map method for more information.

◆ map() [4/4]

virtual void SoCpuBufferFromVolumeReader::map	(	SoGLBufferObject *	targetBufferObject,
		SoBufferObject::AccessMode	accessMode,
		size_t	startPosition = `0`,
		size_t	mappingSize = `SO_BUFFER_SIZE_ALL`
	)

virtual

Map the current buffer object into the specified GL buffer object.

See the general map method for more information.

◆ unmap() [1/4]

virtual void SoCpuBufferFromVolumeReader::unmap ( )

virtual

Unmap a mapped buffer.

No error is reported if the buffer was not mapped.

Reimplemented from SoBufferObject.

◆ unmap() [2/4]

void SoCpuBufferFromVolumeReader::unmap ( SoBufferObject * bufferObject )

virtual

Unmap the specified buffer object
It is defined just to speed up the call when the type of the object is known.

See the general unmap function for more information.

Reimplemented from SoBufferObject.

◆ unmap() [3/4]

virtual void SoCpuBufferFromVolumeReader::unmap ( SoCpuBufferObject * bufferObject )

virtual

Unmap the specified CPU buffer object
It is defined just to speed up the call when the type of the object is known.

Remove the specified bufferObject from the list of buffers which map the current buffer.

See the general unmap function for more information.

◆ unmap() [4/4]

virtual void SoCpuBufferFromVolumeReader::unmap ( SoGLBufferObject * bufferObject )

virtual

Unmap the specified GL buffer object
It is defined just to speed up the call when the type of the object is known.

If the access mode supports writing the specified buffer is sync'd with the buffer.

See the general unmap function for more information.

Parameters

bufferObject Buffer to be unmapped.

Friends And Related Symbol Documentation

◆ SoCpuBufferFromVolumeReaderImpl

friend class SoCpuBufferFromVolumeReaderImpl

friend

Definition at line 161 of file SoCpuBufferFromVolumeReader.h.

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

LDM/tiles/SoCpuBufferFromVolumeReader.h

Open Inventor Release 2023.2.3

Public Member Functions

Friends

Additional Inherited Members

Detailed Description

SEE ALSO

Constructor & Destructor Documentation

◆ SoCpuBufferFromVolumeReader()

Member Function Documentation

◆ getMinMax()

◆ getRealSize()

◆ map() [1/4]

◆ map() [2/4]

◆ map() [3/4]

◆ map() [4/4]

◆ unmap() [1/4]

◆ unmap() [2/4]

◆ unmap() [3/4]

◆ unmap() [4/4]

Friends And Related Symbol Documentation

◆ SoCpuBufferFromVolumeReaderImpl