#include <bitmap.h>

Class Description

See also: Class IBitmapPager

Description:: This class exposes parameters to the Bitmap Pager. This pager reduces memory footprint by swapping bitmap data to and from disk, keeping the memory usage of bitmaps within a certain percentage of total available memory. Internally, all bitmaps are partitioned into separately allocated tiles, but tiles are only swapped to disk when the pager is enabled. For performance reasons the tile size varies dynamically for each bitmap, but is typically around 1-4 megabytes. Bitmaps smaller than one tile are not eligible for paging, and are held in memory at all times.

Inheritance diagram for IBitmapPager:

Public Member Functions
	DECLARE_DESCRIPTOR (IBitmapPager)

virtual BOOL	IsPagerEnabled ()=0
	Returns whether bitmap paging is enabled. More...

virtual void	SetPagerEnabled (BOOL b)=0
	Enables or disables bitmap paging. More...

virtual const MCHAR *	GetPageFilePath ()=0
	Returns the page file path. More...

virtual void	SetPageFilePath (const MCHAR *path)=0
	Sets the page file path. More...

virtual float	GetMemoryLimitPercent ()=0
	Returns the memory limit percentage (as a fraction from 0.0 to 1.0) of available padded memory. More...

virtual void	SetMemoryLimitPercent (float percent)=0
	Sets the memory limit percentage (as a fraction from 0.0 to 1.0) of available padded memory. More...

virtual float	GetMemoryPaddingPercent ()=0
	Returns the memory padding percent (as a fraction from 0.0 to 1.0) of available memory. More...

virtual void	SetMemoryPaddingPercent (float percent)=0
	Sets the memory padding percent (as a fraction from 0.0 to 1.0) of available memory. More...

virtual BOOL	GetMemoryLimitAutoMode ()=0
	Returns whether Memory Limit Auto Mode is enabled for the pager. More...

virtual void	SetMemoryLimitAutoMode (BOOL onOff)=0
	Sets whether Memory Limit Auto Mode is enabled for the pager. More...

virtual size_t	GetMemoryLimit ()=0
	Returns the current memory limit physical value, in bytes. More...

virtual size_t	GetMemoryUsedForPager ()=0
	Returns the total memory usage of bitmap tiles (excluding tiles on disk), in bytes. More...

virtual size_t	GetMemoryPadding ()=0
	Returns the current memory padding physical value, in bytes. More...

virtual size_t	GetMemoryAvailablePadded ()=0
	Returns the amount of available memory for the entire application, after padding, in bytes. More...

virtual LONGLONG	GetMemoryTotalForPager ()=0
	Returns the total memory and disk usage of bitmap tiles, in bytes. More...

Public Member Functions inherited from FPInterfaceDesc
CoreExport	FPInterfaceDesc ()

CoreExport	FPInterfaceDesc (Interface_ID id, const MCHAR int_name, StringResID descr, ClassDesc cd, ULONG flag,...)

CoreExport	~FPInterfaceDesc ()

virtual void	Init ()

LifetimeType	LifetimeControl ()

virtual BaseInterface *	GetInterface (Interface_ID id)

CoreExport void	LoadDescriptor (Interface_ID id, const MCHAR int_name, StringResID descr, ClassDesc pCD, ULONG flag,...)

CoreExport void	AppendFunction (int id,...)
	Add a new function to this interface descriptor. More...

CoreExport void	AppendProperty (int id,...)
	Add a new property to this interface descriptor. More...

CoreExport void	AppendEnum (int id,...)
	Add a new enum to this interface descriptor. More...

CoreExport void	SetClassDesc (ClassDesc *i_cd)

CoreExport va_list	check_fn (va_list ap, int id)

CoreExport va_list	scan_fn (va_list ap, int id, int index)

CoreExport va_list	check_prop (va_list ap, int id)

CoreExport va_list	scan_prop (va_list ap, int id, int index)

CoreExport va_list	check_enum (va_list ap, EnumID id)

CoreExport va_list	scan_enum (va_list ap, EnumID id, int index)

FPInterfaceDesc *	GetDesc ()

Interface_ID	GetID ()

CoreExport FPFunctionDef *	GetFnDef (FunctionID fid)

ActionTable *	GetActionTable ()

CoreExport void	EnableActions (BOOL onOff)

virtual CoreExport HINSTANCE	HInstance ()

virtual CoreExport const MCHAR *	GetRsrcString (StringResID id)

Public Member Functions inherited from FPInterface
virtual CoreExport FPStatus	Invoke (FunctionID fid, TimeValue t=0, FPParams *params=NULL)

virtual FPStatus	Invoke (FunctionID fid, FPParams *params)

virtual CoreExport FPStatus	Invoke (FunctionID fid, TimeValue t, FPValue &result, FPParams *params=NULL)

virtual FPStatus	Invoke (FunctionID fid, FPValue &result, FPParams *params=NULL)

virtual CoreExport FunctionID	FindFn (const MCHAR *name)

virtual CoreExport BOOL	IsEnabled (FunctionID actionID)

virtual CoreExport BOOL	IsChecked (FunctionID actionID)

virtual CoreExport BOOL	IsVisible (FunctionID actionID)

virtual CoreExport FunctionID	GetIsEnabled (FunctionID actionID)

virtual CoreExport FunctionID	GetIsChecked (FunctionID actionID)

virtual CoreExport FunctionID	GetIsVisible (FunctionID actionID)

Public Member Functions inherited from BaseInterface
virtual UtilExport	~BaseInterface ()
	Destructor. More...

virtual bool	RegisterNotifyCallback (InterfaceNotifyCallback *incb)

virtual void	UnRegisterNotifyCallback (InterfaceNotifyCallback *incb)

virtual BaseInterface *	AcquireInterface ()

virtual void	ReleaseInterface ()

virtual void	DeleteInterface ()

virtual BaseInterface *	CloneInterface (void *remapDir=NULL)

Public Member Functions inherited from InterfaceServer
virtual UtilExport	~InterfaceServer ()
	Destructor. More...

Additional Inherited Members
Public Types inherited from BaseInterface
enum	LifetimeType { noRelease, immediateRelease, wantsRelease, serverControlled }

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...

Public Attributes inherited from FPInterfaceDesc
Interface_ID	ID

MSTR	internal_name

StringResID	description

ClassDesc *	cd

USHORT	flags

Tab< FPFunctionDef * >	functions

Tab< FPPropDef * >	props

Tab< FPEnum * >	enumerations

MSPluginClass *	pc

Rollout *	rollout

ActionTable *	action_table

Static Public Attributes inherited from FPInterface
static CoreExport FPInterfaceDesc	nullInterface

Protected Member Functions inherited from FPInterfaceDesc
CoreExport void	load_descriptor (Interface_ID id, const MCHAR int_name, StringResID descr, ClassDesc cd, USHORT flag, va_list ap)

Protected Member Functions inherited from FPInterface
virtual FPStatus	_dispatch_fn (FunctionID fid, TimeValue t, FPValue &result, FPParams *p)

Member Function Documentation

DECLARE_DESCRIPTOR ( IBitmapPager )

virtual BOOL IsPagerEnabled ( )

pure virtual

Returns whether bitmap paging is enabled.

Internally, all bitmaps are partitioned into separately allocated tiles. With paging is enabled, bitmap tiles are swapped to disk, keeping total bitmap usage below the memory limit.

virtual void SetPagerEnabled ( BOOL b )

pure virtual

Enables or disables bitmap paging.

Internally, all bitmaps are partitioned into separately allocated tiles. Passing TRUE immediately swaps bitmap tiles from memory to disk, reducing total bitmap usage below the memory limit. Passing FALSE does not immediately swap bitmap tiles from disk to memory, but no further tiles are swapped to disk while paging is disabled.

virtual size_t GetMemoryLimit ( )

pure virtual

Returns the current memory limit physical value, in bytes.

This is the value used internally in deciding whether to swap bitmap tiles to disk. The value is not live, but is calculated from the memory limit percentage at specific times, during file load, file reset, render begin and render end.

virtual size_t GetMemoryUsedForPager ( )

pure virtual

Returns the total memory usage of bitmap tiles (excluding tiles on disk), in bytes.

virtual size_t GetMemoryPadding ( )

pure virtual

Returns the current memory padding physical value, in bytes.

virtual size_t GetMemoryAvailablePadded ( )

pure virtual

Returns the amount of available memory for the entire application, after padding, in bytes.

virtual LONGLONG GetMemoryTotalForPager ( )

pure virtual

Returns the total memory and disk usage of bitmap tiles, in bytes.

May exceed 2GB.

IBitmapPager Class Reference

Class Description

Public Member Functions

Additional Inherited Members

Member Function Documentation