itk::OpenCLBuffer Class Reference

#include <itkOpenCLBuffer.h>

Detailed Description

The OpenCLBuffer class represents an OpenCL buffer object.

See also

OpenCLMemoryObject, OpenCLVector

Definition at line 53 of file itkOpenCLBuffer.h.

Inheritance diagram for itk::OpenCLBuffer:

Public Types
typedef OpenCLBuffer	Self
Public Types inherited from itk::OpenCLMemoryObject
enum	Access { ReadWrite = 0x0001 , WriteOnly = 0x0002 , ReadOnly = 0x0004 }
typedef Point< std::vcl_size_t, 2 >	PointType
typedef Size< 4 >	RectangleType
typedef OpenCLMemoryObject	Self
typedef Size< 2 >	SizeType

Public Member Functions
bool	CopyToBuffer (const OpenCLBuffer &dest, const std::vcl_size_t size, const std::vcl_size_t dst_offset=0, const std::vcl_size_t offset=0)
OpenCLEvent	CopyToBufferAsync (const OpenCLBuffer &dest, const std::vcl_size_t size, const OpenCLEventList &event_list=OpenCLEventList(), const std::vcl_size_t dst_offset=0, const std::vcl_size_t offset=0)
bool	CopyToImage (const OpenCLImage &dest, const OpenCLSize &origin, const OpenCLSize &region, const std::vcl_size_t src_offset=0)
OpenCLEvent	CopyToImageAsync (const OpenCLImage &dest, const OpenCLSize &origin, const OpenCLSize &region, const OpenCLEventList &event_list=OpenCLEventList(), const std::vcl_size_t src_offset=0)
bool	CopyToRect (const OpenCLBuffer &dest, const RectangleType &rect, const PointType &destPoint, const std::vcl_size_t bufferBytesPerLine, std::vcl_size_t destBytesPerLine)
bool	CopyToRect (const OpenCLBuffer &dest, const std::vcl_size_t origin[3], const std::vcl_size_t size[3], const std::vcl_size_t destOrigin[3], const std::vcl_size_t bufferBytesPerLine, const std::vcl_size_t bufferBytesPerSlice, const std::vcl_size_t destBytesPerLine, const std::vcl_size_t destBytesPerSlice)
OpenCLEvent	CopyToRectAsync (const OpenCLBuffer &dest, const RectangleType &rect, const PointType &destPoint, const std::vcl_size_t bufferBytesPerLine, const std::vcl_size_t destBytesPerLine, const OpenCLEventList &event_list=OpenCLEventList())
OpenCLEvent	CopyToRectAsync (const OpenCLBuffer &dest, const std::vcl_size_t origin[3], const std::vcl_size_t size[3], const std::vcl_size_t destOrigin[3], const std::vcl_size_t bufferBytesPerLine, const std::vcl_size_t bufferBytesPerSlice, const std::vcl_size_t destBytesPerLine, const std::vcl_size_t destBytesPerSlice, const OpenCLEventList &event_list=OpenCLEventList())
OpenCLBuffer	CreateSubBuffer (const OpenCLMemoryObject::Access access, const std::vcl_size_t size, const std::vcl_size_t offset=0)
std::vcl_size_t	GetOffset () const
OpenCLBuffer	GetParentBuffer () const
void *	Map (const OpenCLMemoryObject::Access access)
void *	Map (const OpenCLMemoryObject::Access access, const std::vcl_size_t size, const std::vcl_size_t offset=0)
OpenCLEvent	MapAsync (void **ptr, const OpenCLMemoryObject::Access access, const std::vcl_size_t size, const OpenCLEventList &event_list=OpenCLEventList(), const std::vcl_size_t offset=0)
	OpenCLBuffer ()
	OpenCLBuffer (const OpenCLBuffer &other)
	OpenCLBuffer (OpenCLContext *context, const cl_mem id)
OpenCLBuffer &	operator= (const OpenCLBuffer &other)
bool	Read (void *data, const std::vcl_size_t size, const std::vcl_size_t offset=0)
OpenCLEvent	ReadAsync (void *data, const std::vcl_size_t size, const OpenCLEventList &event_list=OpenCLEventList(), const std::vcl_size_t offset=0)
bool	ReadRect (void *data, const RectangleType &rect, const std::vcl_size_t bufferBytesPerLine, const std::vcl_size_t hostBytesPerLine)
bool	ReadRect (void *data, const std::vcl_size_t origin[3], const std::vcl_size_t size[3], const std::vcl_size_t bufferBytesPerLine, const std::vcl_size_t bufferBytesPerSlice, const std::vcl_size_t hostBytesPerLine, const std::vcl_size_t hostBytesPerSlice)
OpenCLEvent	ReadRectAsync (void *data, const RectangleType &rect, const std::vcl_size_t bufferBytesPerLine, const std::vcl_size_t hostBytesPerLine, const OpenCLEventList &event_list=OpenCLEventList())
OpenCLEvent	ReadRectAsync (void *data, const std::vcl_size_t origin[3], const std::vcl_size_t size[3], const std::vcl_size_t bufferBytesPerLine, const std::vcl_size_t bufferBytesPerSlice, const std::vcl_size_t hostBytesPerLine, const std::vcl_size_t hostBytesPerSlice, const OpenCLEventList &event_list=OpenCLEventList())
bool	Write (const void *data, const std::vcl_size_t size, const std::vcl_size_t offset=0)
OpenCLEvent	WriteAsync (const void *data, const std::vcl_size_t size, const OpenCLEventList &event_list=OpenCLEventList(), const std::vcl_size_t offset=0)
bool	WriteRect (const void *data, const RectangleType &rect, const std::vcl_size_t bufferBytesPerLine, const std::vcl_size_t hostBytesPerLine)
bool	WriteRect (const void *data, const std::vcl_size_t origin[3], const std::vcl_size_t size[3], const std::vcl_size_t bufferBytesPerLine, const std::vcl_size_t bufferBytesPerSlice, const std::vcl_size_t hostBytesPerLine, const std::vcl_size_t hostBytesPerSlice)
OpenCLEvent	WriteRectAsync (const void *data, const RectangleType &rect, const std::vcl_size_t bufferBytesPerLine, const std::vcl_size_t hostBytesPerLine, const OpenCLEventList &event_list=OpenCLEventList())
OpenCLEvent	WriteRectAsync (const void *data, const std::vcl_size_t origin[3], const std::vcl_size_t size[3], const std::vcl_size_t bufferBytesPerLine, const std::vcl_size_t bufferBytesPerSlice, const std::vcl_size_t hostBytesPerLine, const std::vcl_size_t hostBytesPerSlice, const OpenCLEventList &event_list=OpenCLEventList())
Public Member Functions inherited from itk::OpenCLMemoryObject
OpenCLMemoryObject::Access	GetAccess () const
OpenCLContext *	GetContext () const
cl_mem_flags	GetFlags () const
void *	GetHostPointer () const
cl_uint	GetMapCount () const
cl_mem	GetMemoryId () const
cl_mem_object_type	GetMemoryType () const
cl_uint	GetReferenceCount () const
std::vcl_size_t	GetSize () const
bool	IsNull () const
cl_int	SetDestructorCallback (void(CL_CALLBACK *pfn_notify)(cl_mem, void *), void *user_data=nullptr)
void	Unmap (void *ptr, const bool wait=false)
OpenCLEvent	UnmapAsync (void *ptr, const OpenCLEventList &event_list=OpenCLEventList())

Additional Inherited Members
Protected Member Functions inherited from itk::OpenCLMemoryObject
cl_map_flags	GetMapFlags (const OpenCLMemoryObject::Access access)
	OpenCLMemoryObject (OpenCLContext *context, const cl_mem id)
	OpenCLMemoryObject (OpenCLContext *context=0)
void	SetId (OpenCLContext *context, const cl_mem id)
	~OpenCLMemoryObject ()

Member Typedef Documentation

Self

typedef OpenCLBuffer itk::OpenCLBuffer::Self

Standard class typedefs.

Definition at line 58 of file itkOpenCLBuffer.h.

Constructor & Destructor Documentation

OpenCLBuffer() [1/3]

itk::OpenCLBuffer::OpenCLBuffer ( )

inline

Constructs a null OpenCL buffer object.

Definition at line 61 of file itkOpenCLBuffer.h.

OpenCLBuffer() [2/3]

itk::OpenCLBuffer::OpenCLBuffer	(	OpenCLContext *	context,
		const cl_mem	id
	)

Constructs an OpenCL buffer object that is initialized with the native OpenCL identifier id, and associates it with context. This class will take over ownership of id and will release it in the destructor.

OpenCLBuffer() [3/3]

itk::OpenCLBuffer::OpenCLBuffer

(

const OpenCLBuffer &

other

)

Constructs a copy of other.

Member Function Documentation

CopyToBuffer()

bool itk::OpenCLBuffer::CopyToBuffer	(	const OpenCLBuffer &	dest,
		const std::vcl_size_t	size,
		const std::vcl_size_t	dst_offset = 0,
		const std::vcl_size_t	offset = 0
	)

Copies the size bytes at offset in this buffer be copied to dst_offset in the buffer dest. Returns true if the copy was successful, false otherwise. This function will block until the request finishes. The request is executed on the active command queue for context().

See also

CopyToAsync()

CopyToBufferAsync()

OpenCLEvent itk::OpenCLBuffer::CopyToBufferAsync	(	const OpenCLBuffer &	dest,
		const std::vcl_size_t	size,
		const OpenCLEventList &	event_list = OpenCLEventList(),
		const std::vcl_size_t	dst_offset = 0,
		const std::vcl_size_t	offset = 0
	)

Asynchronous version of the CopyToBuffer() method. This function will queue the request and return immediately. Returns an OpenCLEvent object that can be used to wait for the request to finish. The request will not start until all of the events in event_list have been signaled as completed.

See also

CopyTo(), OpenCLEvent::IsComplete()

CopyToImage()

bool itk::OpenCLBuffer::CopyToImage	(	const OpenCLImage &	dest,
		const OpenCLSize &	origin,
		const OpenCLSize &	region,
		const std::vcl_size_t	src_offset = 0
	)

Copies the contents of this buffer, starting at origin and range region in dest. Returns true if the copy was successful, false otherwise. This function will block until the request finishes. The request is executed on the active command queue for context().

See also

CopyToAsync()

CopyToImageAsync()

OpenCLEvent itk::OpenCLBuffer::CopyToImageAsync	(	const OpenCLImage &	dest,
		const OpenCLSize &	origin,
		const OpenCLSize &	region,
		const OpenCLEventList &	event_list = OpenCLEventList(),
		const std::vcl_size_t	src_offset = 0
	)

Asynchronous version of the CopyToImage() method. This function will queue the request and return immediately. Returns an OpenCLEvent object that can be used to wait for the request to finish. The request will not start until all of the events in event_list have been signaled as completed.

See also

CopyTo(), OpenCLEvent::IsComplete()

CopyToRect() [1/2]

bool itk::OpenCLBuffer::CopyToRect	(	const OpenCLBuffer &	dest,
		const RectangleType &	rect,
		const PointType &	destPoint,
		const std::vcl_size_t	bufferBytesPerLine,
		std::vcl_size_t	destBytesPerLine
	)

Copies the contents of rect within this buffer to dest, starting at destPoint. The source and destination line pitch values are given by bufferBytesPerLine and destBytesPerLine respectively. Returns true if the copy was successful, false otherwise. This function will block until the request finishes. The request is executed on the active command queue for context().

See also

CopyToRectAsync()

CopyToRect() [2/2]

bool itk::OpenCLBuffer::CopyToRect	(	const OpenCLBuffer &	dest,
		const std::vcl_size_t	origin[3],
		const std::vcl_size_t	size[3],
		const std::vcl_size_t	destOrigin[3],
		const std::vcl_size_t	bufferBytesPerLine,
		const std::vcl_size_t	bufferBytesPerSlice,
		const std::vcl_size_t	destBytesPerLine,
		const std::vcl_size_t	destBytesPerSlice
	)

Copies the 3D rectangle defined by origin and size within this buffer to destOrigin within dest. The source and destination pitch values are given by bufferBytesPerLine, bufferBytesPerSlice, destBytesPerLine, and destBytesPerSlice. Returns true if the copy was successful, false otherwise. This function will block until the request finishes. The request is executed on the active command queue for context().

See also

CopyToRectAsync()

CopyToRectAsync() [1/2]

OpenCLEvent itk::OpenCLBuffer::CopyToRectAsync	(	const OpenCLBuffer &	dest,
		const RectangleType &	rect,
		const PointType &	destPoint,
		const std::vcl_size_t	bufferBytesPerLine,
		const std::vcl_size_t	destBytesPerLine,
		const OpenCLEventList &	event_list = OpenCLEventList()
	)

Asynchronous version of the CopyToRect() method. This function will queue the request and return immediately. Returns an OpenCLEvent object that can be used to wait for the request to finish. The request will not start until all of the events in event_list have been signaled as completed.

See also

CopyToRect(), OpenCLEvent::IsComplete()

CopyToRectAsync() [2/2]

OpenCLEvent itk::OpenCLBuffer::CopyToRectAsync	(	const OpenCLBuffer &	dest,
		const std::vcl_size_t	origin[3],
		const std::vcl_size_t	size[3],
		const std::vcl_size_t	destOrigin[3],
		const std::vcl_size_t	bufferBytesPerLine,
		const std::vcl_size_t	bufferBytesPerSlice,
		const std::vcl_size_t	destBytesPerLine,
		const std::vcl_size_t	destBytesPerSlice,
		const OpenCLEventList &	event_list = OpenCLEventList()
	)

Asynchronous version of the CopyToRect() method. This function will queue the request and return immediately. Returns an OpenCLEvent object that can be used to wait for the request to finish. The request will not start until all of the events in event_list have been signaled as completed.

See also

CopyToRectAsync(), OpenCLEvent::IsComplete()

CreateSubBuffer()

OpenCLBuffer itk::OpenCLBuffer::CreateSubBuffer	(	const OpenCLMemoryObject::Access	access,
		const std::vcl_size_t	size,
		const std::vcl_size_t	offset = 0
	)

Creates a new buffer that refers to the size bytes, starting at offset within this buffer. The data in the new buffer will be accessed according to access. this function will return a null buffer.

See also

GetParentBuffer(), GetOffset()

GetOffset()

std::vcl_size_t itk::OpenCLBuffer::GetOffset

(

)

const

Returns the offset of this buffer within its parentBuffer() if it is a sub-buffer; zero otherwise.

See also

CreateSubBuffer(), GetParentBuffer()

GetParentBuffer()

OpenCLBuffer itk::OpenCLBuffer::GetParentBuffer

(

)

const

Returns the parent of this buffer if it is a sub-buffer; null otherwise.

See also

CreateSubBuffer(), GetOffset()

Map() [1/2]

void * itk::OpenCLBuffer::Map

(

const OpenCLMemoryObject::Access

access

)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Maps the entire contents of this buffer into host memory for the specified access mode. Returns a pointer to the mapped region.

Map() [2/2]

void * itk::OpenCLBuffer::Map	(	const OpenCLMemoryObject::Access	access,
		const std::vcl_size_t	size,
		const std::vcl_size_t	offset = 0
	)

Maps the size bytes starting at offset in this buffer into host memory for the specified access mode. Returns a pointer to the mapped region. This function will block until the request finishes. The request is executed on the active command queue for context().

See also

MapAsync(), Unmap()

MapAsync()

OpenCLEvent itk::OpenCLBuffer::MapAsync	(	void **	ptr,
		const OpenCLMemoryObject::Access	access,
		const std::vcl_size_t	size,
		const OpenCLEventList &	event_list = OpenCLEventList(),
		const std::vcl_size_t	offset = 0
	)

Asynchronous version of the Map() method. This function will queue the request and return immediately. Returns an OpenCLEvent object that can be used to wait for the request to finish. The request will not start until all of the events in event_list have been signaled as completed.

See also

Map(), UnmapAsync(), OpenCLEvent::IsComplete()

operator=()

OpenCLBuffer & itk::OpenCLBuffer::operator=

(

const OpenCLBuffer &

other

)

Assigns other to this object.

Read()

bool itk::OpenCLBuffer::Read	(	void *	data,
		const std::vcl_size_t	size,
		const std::vcl_size_t	offset = 0
	)

Reads size bytes starting at offset into the supplied data to the host memory. Returns true if the read was successful, false otherwise. This method does not return until the buffer data has been read into memory pointed to data.

See also

ReadAsync(), Write(), WriteAsync()

ReadAsync()

OpenCLEvent itk::OpenCLBuffer::ReadAsync	(	void *	data,
		const std::vcl_size_t	size,
		const OpenCLEventList &	event_list = OpenCLEventList(),
		const std::vcl_size_t	offset = 0
	)

Asynchronous version of the Read() method. This function will queue the request and return immediately. Returns an OpenCLEvent object that can be used to wait for the request to finish. The request will not start until all of the events in event_list have been signaled as completed.

See also

Read(), Write(), WriteAsync(), OpenCLEvent::IsComplete()

ReadRect() [1/2]

bool itk::OpenCLBuffer::ReadRect	(	void *	data,
		const RectangleType &	rect,
		const std::vcl_size_t	bufferBytesPerLine,
		const std::vcl_size_t	hostBytesPerLine
	)

Reads the bytes defined by rect and bufferBytesPerLine from this buffer into the supplied data array, with a line pitch of hostBytesPerLine. Returns true if the read was successful, false otherwise. This function will block until the request finishes. The request is executed on the active command queue for context().

See also

ReadRectAsync(), WriteRect()

ReadRect() [2/2]

bool itk::OpenCLBuffer::ReadRect	(	void *	data,
		const std::vcl_size_t	origin[3],
		const std::vcl_size_t	size[3],
		const std::vcl_size_t	bufferBytesPerLine,
		const std::vcl_size_t	bufferBytesPerSlice,
		const std::vcl_size_t	hostBytesPerLine,
		const std::vcl_size_t	hostBytesPerSlice
	)

Reads the bytes in the 3D region defined by origin, size, bufferBytesPerLine, and bufferBytesPerSlice from this buffer into the supplied data array, with a line pitch of hostBytesPerLine, and a slice pitch of hostBytesPerSlice. Returns true if the read was successful, false otherwise. This function will block until the request finishes. The request is executed on the active command queue for context().

See also

ReadRectAsync(), WriteRect()

ReadRectAsync() [1/2]

OpenCLEvent itk::OpenCLBuffer::ReadRectAsync	(	void *	data,
		const RectangleType &	rect,
		const std::vcl_size_t	bufferBytesPerLine,
		const std::vcl_size_t	hostBytesPerLine,
		const OpenCLEventList &	event_list = OpenCLEventList()
	)

Asynchronous version of the ReadRect() method. This function will queue the request and return immediately. Returns an OpenCLEvent object that can be used to wait for the request to finish. The request will not start until all of the events in event_list have been signaled as completed.

See also

ReadRect(), WriteRectAsync(), OpenCLEvent::IsComplete()

ReadRectAsync() [2/2]

OpenCLEvent itk::OpenCLBuffer::ReadRectAsync	(	void *	data,
		const std::vcl_size_t	origin[3],
		const std::vcl_size_t	size[3],
		const std::vcl_size_t	bufferBytesPerLine,
		const std::vcl_size_t	bufferBytesPerSlice,
		const std::vcl_size_t	hostBytesPerLine,
		const std::vcl_size_t	hostBytesPerSlice,
		const OpenCLEventList &	event_list = OpenCLEventList()
	)

Asynchronous version of the ReadRect() method. This function will queue the request and return immediately. Returns an OpenCLEvent object that can be used to wait for the request to finish. The request will not start until all of the events in event_list have been signaled as completed.

See also

ReadRect(), WriteRectAsync(), OpenCLEvent::IsComplete()

Write()

bool itk::OpenCLBuffer::Write	(	const void *	data,
		const std::vcl_size_t	size,
		const std::vcl_size_t	offset = 0
	)

Writes size bytes starting at offset from the supplied data to the device memory. Returns true if the write was successful, false otherwise. This function will block until the request finishes. This method does not return until the buffer data has been written into memory pointed to data.

See also

WriteAsync(), Read(), ReadAsync()

WriteAsync()

OpenCLEvent itk::OpenCLBuffer::WriteAsync	(	const void *	data,
		const std::vcl_size_t	size,
		const OpenCLEventList &	event_list = OpenCLEventList(),
		const std::vcl_size_t	offset = 0
	)

Asynchronous version of the Write() method. This function will queue the request and return immediately. Returns an OpenCLEvent object that can be used to wait for the request to finish. The request will not start until all of the events in event_list have been signaled as completed.

See also

Write(), Read(), ReadAsync(), OpenCLEvent::IsComplete()

WriteRect() [1/2]

bool itk::OpenCLBuffer::WriteRect	(	const void *	data,
		const RectangleType &	rect,
		const std::vcl_size_t	bufferBytesPerLine,
		const std::vcl_size_t	hostBytesPerLine
	)

Writes the bytes at data, with a line pitch of hostBytesPerLine to the region of this buffer defined by rect and bufferBytesPerLine. Returns true if the write was successful, false otherwise. This function will block until the request finishes. The request is executed on the active command queue for context().

See also

WriteRectAsync(), ReadRect()

WriteRect() [2/2]

bool itk::OpenCLBuffer::WriteRect	(	const void *	data,
		const std::vcl_size_t	origin[3],
		const std::vcl_size_t	size[3],
		const std::vcl_size_t	bufferBytesPerLine,
		const std::vcl_size_t	bufferBytesPerSlice,
		const std::vcl_size_t	hostBytesPerLine,
		const std::vcl_size_t	hostBytesPerSlice
	)

Writes the bytes at data, with a line pitch of hostBytesPerLine, and a slice pitch of hostBytesPerSlice, to the 3D region defined by origin, size, bufferBytesPerLine, and bufferBytesPerSlice in this buffer. Returns true if the write was successful, false otherwise. This function will block until the request finishes. The request is executed on the active command queue for context().

See also

WriteRectAsync(), ReadRect()

WriteRectAsync() [1/2]

OpenCLEvent itk::OpenCLBuffer::WriteRectAsync	(	const void *	data,
		const RectangleType &	rect,
		const std::vcl_size_t	bufferBytesPerLine,
		const std::vcl_size_t	hostBytesPerLine,
		const OpenCLEventList &	event_list = OpenCLEventList()
	)

Asynchronous version of the WriteRect() method. This function will queue the request and return immediately. Returns an OpenCLEvent object that can be used to wait for the request to finish. The request will not start until all of the events in event_list have been signaled as completed.

See also

WriteRect(), ReadRectAsync(), OpenCLEvent::IsComplete()

WriteRectAsync() [2/2]

OpenCLEvent itk::OpenCLBuffer::WriteRectAsync	(	const void *	data,
		const std::vcl_size_t	origin[3],
		const std::vcl_size_t	size[3],
		const std::vcl_size_t	bufferBytesPerLine,
		const std::vcl_size_t	bufferBytesPerSlice,
		const std::vcl_size_t	hostBytesPerLine,
		const std::vcl_size_t	hostBytesPerSlice,
		const OpenCLEventList &	event_list = OpenCLEventList()
	)

Asynchronous version of the WriteRect() method. This function will queue the request and return immediately. Returns an OpenCLEvent object that can be used to wait for the request to finish. The request will not start until all of the events in event_list have been signaled as completed.

See also

WriteRect(), ReadRectAsync(), OpenCLEvent::IsComplete()