QueryHandle Class Reference

QueryHandle is a query object used for submitting hardware queries. More...

#include <QueryHandle.h>

Inheritance diagram for QueryHandle:

Public Member Functions
GraphicsDriverAPI	QueryHandle ()
GraphicsDriverAPI	QueryHandle (const QueryHandle &from)
GraphicsDriverAPI QueryHandle &	operator= (const QueryHandle &from)
virtual GraphicsDriverAPI	~QueryHandle ()
GraphicsDriverAPI bool	Initialize (QueryType type)
	Initialize this device query. More...
GraphicsDriverAPI void	Begin ()
	Issue the query Call this function before IVirtualDevice::Draw() to get information from the Draw call. More...
GraphicsDriverAPI void	End ()
	End the query Call this function after IVirtualDevice::Draw() to end the query. More...
GraphicsDriverAPI size_t	GetDataSize () const
	Get the query data's size. More...
GraphicsDriverAPI bool	GetData (void *data, size_t size, bool flush)
	Get the query data. More...
Public Member Functions inherited from SmartHandle
virtual GraphicsDriverAPI	~SmartHandle ()
	destructor More...
GraphicsDriverAPI bool	IsValid () const
	Check if this handle is valid. More...
GraphicsDriverAPI void	Release ()
	Release the underlying graphics objects. More...
GraphicsDriverAPI Identifier	GetObjectID () const
	Get the underlying graphics object id. More...
GraphicsDriverAPI void	SetPointer (IRefObject *pObject)
GraphicsDriverAPI IRefObject *	GetPointer () const
	Get the underlying graphics object pointer. More...
bool	operator== (const SmartHandle &rhs) const
bool	operator!= (const SmartHandle &rhs) const
bool	operator< (const SmartHandle &rhs) const
bool	operator<= (const SmartHandle &rhs) const
bool	operator> (const SmartHandle &rhs) const
bool	operator>= (const SmartHandle &rhs) const
GraphicsDriverAPI	SmartHandle (const SmartHandle &)
GraphicsDriverAPI SmartHandle &	operator= (const SmartHandle &)

Additional Inherited Members
Static Public Member Functions inherited from MaxHeapOperators
static UtilExport void *	operator new (size_t size)
	Standard new operator used to allocate objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e)
	Standard new operator used to allocate objects if there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new (size_t size, const char *filename, int line)
	New operator used to allocate objects that takes the filename and line number where the new was called If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, int block_type, const char *filename, int line)
	New operator used to allocate objects that takes the type of memory, filename and line number where the new was called If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, const char *filename, int line)
	New operator used to allocate objects that takes the filename and line number where the new was called If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new (size_t size, unsigned long flags)
	New operator used to allocate objects that takes extra flags to specify special operations If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, unsigned long flags)
	New operator used to allocate objects that takes extra flags to specify special operations If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size, const char *filename, int line)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, int block_type, const char *filename, int line)
	New operator used to allocate arrays of objects. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, const char *filename, int line)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size, unsigned long flags)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, unsigned long flags)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void	operator delete (void *ptr)
	Standard delete operator used to deallocate an object If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e)
	Standard delete operator used to deallocate an object If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete (void *ptr, const char *filename, int line)
	Delete operator used to deallocate an object that takes the filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, int block_type, const char *filename, int line)
	Delete operator used to deallocate an object that takes the type of memory, filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e, const char *filename, int line)
	Delete operator used to deallocate an object that takes the filename and line number where the delete was called If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete (void *ptr, unsigned long flags)
	Delete operator used to deallocate an object that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e, unsigned long flags)
	Delete operator used to deallocate an object that takes extra flags to specify special operations If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr)
	Standard delete operator used to deallocate an array of objects If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e)
	Standard delete operator used to deallocate an array of objects If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, int block_type, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the type of memory, filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the filename and line number where the delete was called If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr, unsigned long flags)
	Delete operator used to deallocate an array of objects that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, unsigned long flags)
	Delete operator used to deallocate an array of objects that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, void *placement_ptr)
	Placement new operator. More...
static UtilExport void	operator delete (void *ptr, void *placement_ptr)
	Placement delete operator. More...
static UtilExport void *	aligned_malloc (size_t size, size_t alignment)
	Allocates memory on a specified alignment boundary. More...
static UtilExport void *	aligned_realloc (void *ptr, size_t size, size_t alignment)
	Reallocates memory on a specified alignment boundary. More...
static UtilExport void	aligned_free (void *ptr)
	Frees a block of memory that was allocated with aligned_malloc/aligned_realloc. More...
Protected Member Functions inherited from SmartHandle
GraphicsDriverAPI	SmartHandle ()
Protected Attributes inherited from SmartHandle
IRefObject *	mpObject

Detailed Description

QueryHandle is a query object used for submitting hardware queries.

Typically use QueryType_Occlusion to query any pixels rendered, use QueryType_SO_Stats to query geometry shader output statistics etc.

Constructor & Destructor Documentation

QueryHandle() [1/2]

GraphicsDriverAPI QueryHandle

(

)

QueryHandle() [2/2]

GraphicsDriverAPI QueryHandle

(

const QueryHandle &

from

)

~QueryHandle()

virtual GraphicsDriverAPI ~QueryHandle ( )

virtual

Member Function Documentation

operator=()

GraphicsDriverAPI QueryHandle& operator=

(

const QueryHandle &

from

)

Initialize()

GraphicsDriverAPI bool Initialize

(

QueryType

type

)

Initialize this device query.

Parameters

type	query type to issue.

Returns

true if successfully initialized, false otherwise.

Begin()

GraphicsDriverAPI void Begin

(

)

Issue the query Call this function before IVirtualDevice::Draw() to get information from the Draw call.

End()

GraphicsDriverAPI void End

(

)

End the query Call this function after IVirtualDevice::Draw() to end the query.

GetDataSize()

GraphicsDriverAPI size_t GetDataSize

(

)

const

Get the query data's size.

GetData()

GraphicsDriverAPI bool GetData	(	void *	data,
		size_t	size,
		bool	flush
	)

Get the query data.

Parameters

data	A pointer to the returned data, which depends on the query type. Only filled if the function returns true. Must not be nullptr.
size	size of the data, query from GetDataSize()
flush	Whether to flush the device's command buffer when checking for data. If flushing is not performed, the client may have to wait indefinitely for a result.

Returns

False if the data is not ready, and the client must keep waiting. True if the data is ready to use.