#include <bitmap.h>

Class Description

See also: Class BitmapStorage.

Description:: This is the base class for the development of plug-in Bitmap Storage plug-ins that don't use Hight Dynamic Range bitmaps.

Note that bVirtual is actually a short-cut macro for BMMExport virtual.

All methods of this class are implemented by the System.

Inheritance diagram for BitmapStorageLDR:

Public Member Functions
virtual BMMExport int	IsHighDynamicRange ()

virtual BMMExport int	StraightCopy (Bitmap *from)

virtual BMMExport int	Get16Gray (int x, int y, int pixels, float *ptr)

virtual BMMExport int	Put16Gray (int x, int y, int pixels, float *ptr)

virtual BMMExport int	GetLinearPixels (int x, int y, int pixels, BMM_Color_fl *ptr)

virtual BMMExport int	GetPixels (int x, int y, int pixels, BMM_Color_fl *ptr)

virtual BMMExport int	PutPixels (int x, int y, int pixels, BMM_Color_fl *ptr)

virtual BMMExport int	GetIndexPixels (int x, int y, int pixels, unsigned char *ptr)=0

virtual BMMExport int	PutIndexPixels (int x, int y, int pixels, unsigned char *ptr)=0

virtual BMMExport int	CropImage (int width, int height, BMM_Color_fl fillcolor)

virtual BMMExport int	CopyCrop (Bitmap *from, BMM_Color_64 fillcolor)

virtual BMMExport int	CopyCrop (Bitmap *from, BMM_Color_fl fillcolor)

virtual BMMExport int	CopyScaleLow (Bitmap *from)

virtual BMMExport int	CopyScaleHigh (Bitmap from, HWND hWnd, BMM_Color_64 *buf=NULL, int w=0, int h=0)

virtual BMMExport int	CopyScaleHigh (Bitmap from, HWND hWnd, BMM_Color_fl *buf=NULL, int w=0, int h=0)

virtual BMMExport int	CopyImage (Bitmap from, int operation, BMM_Color_64 fillcolor, BitmapInfo bmInfo=NULL)

virtual BMMExport int	CopyImage (Bitmap from, int operation, BMM_Color_fl fillcolor, BitmapInfo bmInfo=NULL)

virtual BMMExport int	CopyImage (Bitmap *from, int operation, int fillindex)

virtual BMMExport int	GetFiltered (float u, float v, float du, float dv, BMM_Color_fl *ptr)

Public Member Functions inherited from BitmapStorage
BMMExport	BitmapStorage ()

virtual BMMExport	~BitmapStorage ()

BMMExport float	SetGamma (float gam)

int	HasGamma ()

BMMExport void	SetHasGamma (BOOL onOff)

void	UpdateGammaTable ()

BMMExport UWORD *	GetInputGammaTable ()

BitmapManager *	Manager ()

int	OpenMode ()

int	Width ()

int	Height ()

float	Aspect ()

float	Gamma ()

int	Paletted ()

int	IsDithered ()

int	PreMultipliedAlpha ()

int	HasAlpha ()

void	UseScaleColors (int on)

int	ScaleColors ()

void	ClampScaleColor (BMM_Color_64 &out, const BMM_Color_fl &in)

void	ClampScaleColorA (BMM_Color_64 &out, const BMM_Color_fl &in)

int	UsageCount ()

int	Type ()

int	Flags ()

void	SetFlags (DWORD f)

void	ClearFlags (DWORD f)
	Clears the given flags. More...

virtual BMMExport int	MaxRGBLevel ()=0

virtual BMMExport int	MaxAlphaLevel ()=0

virtual BMMExport void *	GetStoragePtr (int *bmmType)

virtual BMMExport void *	GetAlphaPtr (int *bmmType)

virtual BMMExport void	Scale (WORD , int, WORD , int)

virtual BMMExport void	Scale (float , int, float , int)

virtual BMMExport BOOL	GetSRow (WORD , int, WORD , int)

virtual BMMExport BOOL	GetSRow (float , int, float , int)

virtual BMMExport BOOL	PutSRow (WORD , int, WORD , int)

virtual BMMExport BOOL	PutSRow (float , int, float , int)

virtual BMMExport BOOL	GetSCol (WORD , WORD , int, int)

virtual BMMExport BOOL	GetSCol (float , float , int, int)

virtual BMMExport BOOL	PutSCol (WORD , WORD , int, int)

virtual BMMExport BOOL	PutSCol (float , float , int, int)

virtual BMMExport BOOL	ScaleY (Bitmap , BMM_Color_64 , WORD , WORD , HWND, int cw=0, int ch=0)

virtual BMMExport BOOL	ScaleY (Bitmap , BMM_Color_fl , float , float , HWND, int cw=0, int ch=0)

virtual BMMExport BOOL	ScaleX (Bitmap , BMM_Color_64 , WORD , WORD , HWND, int cw=0, int ch=0)

virtual BMMExport BOOL	ScaleX (Bitmap , BMM_Color_fl , float , float , HWND, int cw=0, int ch=0)

virtual BMMExport int	Get16Gray (int x, int y, int pixels, WORD *ptr)=0

virtual BMMExport int	Put16Gray (int x, int y, int pixels, WORD *ptr)=0

virtual BMMExport int	GetLinearPixels (int x, int y, int pixels, BMM_Color_64 *ptr)=0

virtual BMMExport int	GetPixels (int x, int y, int pixels, BMM_Color_64 *ptr)=0

virtual BMMExport int	PutPixels (int x, int y, int pixels, BMM_Color_64 *ptr)=0

virtual BMMExport int	Fill (const BMM_Color_fl &fillColor)

virtual BMMExport int	Fill (const BMM_Color_64 &fillColor)

virtual BMMExport int	CropImage (int width, int height, BMM_Color_64 fillcolor)=0

virtual BMMExport int	CropImage (int width, int height, int fillindex)=0

virtual BMMExport int	ResizeImage (int width, int height, int newpalette)=0

virtual BMMExport int	GetPalette (int start, int count, BMM_Color_48 *ptr)=0

virtual BMMExport int	SetPalette (int start, int count, BMM_Color_48 *ptr)=0

virtual BMMExport int	GetFiltered (float u, float v, float du, float dv, BMM_Color_64 *ptr)=0

virtual BMMExport int	Allocate (BitmapInfo pbi, BitmapManager pmanager, int iOpenMode)=0

virtual BMMExport int	Connect ()=0

virtual BMMExport int	Disconnect ()=0

virtual BMMExport int	MapReady ()=0

virtual BMMExport int	ClosestColor (BMM_Color_48 color)

virtual BMMExport int	ClosestColor (int r, int g, int b)

virtual BMMExport void *	GetChannel (ULONG channelID, ULONG &chanType)

GBuffer *	GetGBuffer ()

virtual BMMExport ULONG	CreateChannels (ULONG channelIDs)

virtual BMMExport void	DeleteChannels (ULONG channelIDs)

virtual BMMExport ULONG	ChannelsPresent ()

BMMExport RenderInfo *	AllocRenderInfo ()

BMMExport RenderInfo *	GetRenderInfo ()

Public Member Functions inherited from BaseInterfaceServer
virtual UtilExport BaseInterface *	GetInterface (Interface_ID id)

virtual UtilExport int	NumInterfaces () const

virtual UtilExport BaseInterface *	GetInterfaceAt (int i) const

virtual UtilExport	~BaseInterfaceServer ()

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

Additional Inherited Members
Static Public Member Functions inherited from BitmapStorage
static void	ClampColor (BMM_Color_64 &out, const BMM_Color_fl &in)

static void	ClampColorA (BMM_Color_64 &out, const BMM_Color_fl &in)

static BMMExport void	ScaleColor (BMM_Color_64 &out, BMM_Color_fl in)

static void	ScaleColorA (BMM_Color_64 &out, const BMM_Color_fl &in)

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 BitmapStorage
BitmapInfo	bi

MCHAR *	evalString

Protected Attributes inherited from BitmapStorage
int	openMode

UINT	usageCount

BitmapManager *	manager

int	flags

int	type

BMM_Color_48	palette [256]

int	paletteSlots

UWORD *	gammaTable

RenderInfo *	rendInfo

GBuffer *	gbuffer

Protected Attributes inherited from BaseInterfaceServer
Tab< BaseInterface * >	interfaces

Member Function Documentation

virtual BMMExport int IsHighDynamicRange ( )

inlinevirtual

Remarks: This method returns 0 if the bitmap is not a high dynamic range bitmap or 1 if it is.

Default Implementation:: { return(0); }

Implements BitmapStorage.

2979 { return 0; }

virtual BMMExport int StraightCopy ( Bitmap * from )

virtual

Remarks: Implemented by the System.

This method does a straightforward copy from the specified bitmap.

Parameters:: Bitmap *from

The bitmap to copy from.

Implements BitmapStorage.

virtual BMMExport int Get16Gray	(	int	x,
		int	y,
		int	pixels,
		float *	ptr
	)

virtual

Remarks: Implemented by the System.

Retrieves the specified 16 bit grayscale pixels from the storage. This method operates on a single scanline of the image at a time.

Parameters:: int x

Source x location.

int y

Source y location.

int pixels

Number of pixels to retrieve.

float *ptr

Pointer to the storage for the retrieved pixels.

Returns: Nonzero if pixels were retrieved; otherwise 0.

Implements BitmapStorage.

virtual BMMExport int Put16Gray	(	int	x,
		int	y,
		int	pixels,
		float *	ptr
	)

virtual

Remarks: Implemented by the System.

Stores the 16 bit grayscale pixels to the specified location in the storage. This method operates on a single scanline of the image at a time.

Parameters:: int x

Destination x location.

int y

Destination y location.

int pixels

Number of pixels to store.

float *ptr

Pointer to the storage for the pixels.

Returns: Nonzero if pixels were stored; otherwise 0.

Implements BitmapStorage.

virtual BMMExport int GetLinearPixels	(	int	x,
		int	y,
		int	pixels,
		BMM_Color_fl *	ptr
	)

virtual

Remarks: This method retrieves the specified 64 bit true color pixels from the storage. Pixels returned from this method are NOT gamma corrected. These have linear gamma (1.0). This method operates on a single scanline of the image at a time.

Parameters:: int x

Source x location.

int y

Source y location.

int pixels

Number of pixels to retrieve.

BMM_Color_fl *ptr

Pointer to the storage for the retrieved pixels.

Returns: Nonzero if pixels were retrieved; otherwise 0.

Implements BitmapStorage.

virtual BMMExport int GetPixels	(	int	x,
		int	y,
		int	pixels,
		BMM_Color_fl *	ptr
	)

virtual

Remarks: Retrieves the specified 64-bit pixel values from the bitmap. Note: This method provides access to pixel data one scanline at a time.

Parameters:: int x

Source x location.

int y

Source y location.

int pixels

Number of pixels to retrieve.

BMM_Color_fl *ptr

Pointer to the storage for the retrieved pixels.

Returns: Returns nonzero if pixels were retrieved; otherwise 0. If storage has not been allocated 0 is returned.

Implements BitmapStorage.

virtual BMMExport int PutPixels	(	int	x,
		int	y,
		int	pixels,
		BMM_Color_fl *	ptr
	)

virtual

Remarks: Stores the specified 64-bit pixel values into the bitmap's own local storage. The pointer you pass to this method may be freed or reused as soon as the function returns. Note: This method provides access to pixel data one scanline at a time.

Parameters:: int x

Destination x location.

int y

Destination y location.

int pixels

Number of pixels to store.

BMM_Color_fl *ptr

The pixels values to store.

Returns: Returns nonzero if pixels were stored; otherwise 0. If storage has not been allocated 0 is returned.

Implements BitmapStorage.

virtual BMMExport int GetIndexPixels	(	int	x,
		int	y,
		int	pixels,
		unsigned char *	ptr
	)

pure virtual

Remarks: Implemented by the System.

Retrieves the specified index color pixels from the storage. This is used to retrieve pixels from a paletted image. This method operates on a single scanline of the image at a time.

Parameters:: int x

Source x location.

int y

Source y location.

int pixels

Number of pixels to retrieve.

unsigned char *ptr

Pointer to the storage for the pixels.

Returns: Nonzero if pixels were retrieved; otherwise 0.

Implements BitmapStorage.

virtual BMMExport int PutIndexPixels	(	int	x,
		int	y,
		int	pixels,
		unsigned char *	ptr
	)

pure virtual

Remarks: Implemented by the System.

Stores the index color pixels to the specified location in the storage. This method operates on a single scanline of the image at a time.

Parameters:: int x

Destination x location.

int y

Destination y location.

int pixels

Number of pixels to store.

unsigned char *ptr

The pixels values to store.

Returns: Nonzero if pixels were stored; otherwise 0.

Implements BitmapStorage.

virtual BMMExport int CropImage	(	int	width,
		int	height,
		BMM_Color_fl	fillcolor
	)

virtual

Remarks: Adjusts the bitmap size to the specified dimensions. The image is not resized to fit; it is cropped or filled with fillcolor pixels to accommodate the new size.

Parameters:: int width

The new horizontal size for the bitmap.

int height

The new vertical size for the bitmap.

BMM_Color_fl fillcolor

If the bitmap's new size is bigger than its current size, this is the color used to fill the new pixels.

Returns: Nonzero if the image was cropped; otherwise 0.

Implements BitmapStorage.

virtual BMMExport int CopyCrop	(	Bitmap *	from,
		BMM_Color_64	fillcolor
	)

virtual

Remarks: Copies the specified bitmap to this storage. The image is cropped to fit.

Parameters:: Bitmap *from

The bitmap to copy to this bitmap.

BMM_Color_64 fillcolor

The color to use if the source image is smaller than the destination image.

Returns: Nonzero if the copy/crop was performed; otherwise zero.

Implements BitmapStorage.

virtual BMMExport int CopyCrop	(	Bitmap *	from,
		BMM_Color_fl	fillcolor
	)

virtual

Remarks: Copies the specified bitmap to this storage. The image is cropped to fit.

Parameters:: Bitmap *from

The bitmap to copy to this bitmap.

BMM_Color_fl fillcolor

The color to use if the source image is smaller than the destination image.

Returns: Nonzero if the copy/crop was performed; otherwise zero.

Implements BitmapStorage.

virtual BMMExport int CopyScaleLow ( Bitmap * from )

virtual

Remarks: Implemented by the System.

This method copies the specified bitmap to this storage. The source bitmap is scaled to fit using a lower quality but faster algorithm than CopyScaleHigh().This is an internal function implemented within BMM.DLL for copying bitmaps back and forth. If a developer creates new storage type, they will automatically get these copy functions as these are implemented in the base class.

Parameters:: Bitmap *from

The bitmap to copy to this bitmap.

Returns: Nonzero if the copy/scale was performed; otherwise zero.

Implements BitmapStorage.

virtual BMMExport int CopyScaleHigh	(	Bitmap *	from,
		HWND	hWnd,
		BMM_Color_64 **	buf = `NULL`,
		int	w = `0`,
		int	h = `0`
	)

virtual

Remarks: Implemented by the System.

This method copies the specified bitmap to this storage. The source bitmap is scaled to fit using a higher quality but slower algorithm than CopyScaleLow(). This is an internal function implemented within BMM.DLL for copying bitmaps back and forth. If a developer creates new storage type, they will automatically get these copy functions as these are implemented in the base class.

Implements BitmapStorage.

virtual BMMExport int CopyScaleHigh	(	Bitmap *	from,
		HWND	hWnd,
		BMM_Color_fl **	buf = `NULL`,
		int	w = `0`,
		int	h = `0`
	)

virtual

Remarks: Implemented by the System.

This method copies the specified bitmap to this storage. The source bitmap is scaled to fit using a higher quality but slower algorithm than CopyScaleLow(). This is an internal function implemented within BMM.DLL for copying bitmaps back and forth. If a developer creates new storage type, they will automatically get these copy functions as these are implemented in the base class.

Implements BitmapStorage.

virtual BMMExport int CopyImage	(	Bitmap *	from,
		int	operation,
		BMM_Color_64	fillcolor,
		BitmapInfo *	bmInfo = `NULL`
	)

virtual

Remarks: Copies the specified bitmap to this storage. The image is cropped or resized as specified.

Parameters:: Bitmap *from

The source bitmap.

int operation

The type of copy to perform:

COPY_IMAGE_CROP

Copy image to current map size using cropping if necessary.

COPY_IMAGE_RESIZE_LO_QUALITY

Resize the source image to the destination map size (draft quality).

COPY_IMAGE_RESIZE_HI_QUALITY

Resize source image to the destination map size (final quality).

COPY_IMAGE_USE_CUSTOM

Resize based on the Image Input Options (BitmapInfo *).

BMM_Color_64 fillcolor

Vacant areas of the bitmap are filled with fillcolor pixels if the operation specified is COPY_IMAGE_CROP and one of the source bitmap dimensions is less than the size of this bitmap.

BitmapInfo *bmInfo = NULL

When using custom options (resize to fit, positioning, etc.) this is how the flags are passed down to the Bitmap Manager. This is an optional argument – for simple copy operations, *bmInfo can default to NULL. If present, the code checks the option flags and acts accordingly.

Returns: Nonzero if the copy was performed; otherwise 0.

Implements BitmapStorage.

virtual BMMExport int CopyImage	(	Bitmap *	from,
		int	operation,
		BMM_Color_fl	fillcolor,
		BitmapInfo *	bmInfo = `NULL`
	)

virtual

Remarks: Copies the specified bitmap to this storage.

Parameters:: Bitmap *from

The source bitmap.

int operation

The type of copy to perform:

COPY_IMAGE_CROP

Copy image to current map size using cropping if necessary.

COPY_IMAGE_RESIZE_LO_QUALITY

Resize the source image to the destination map size (draft quality).

COPY_IMAGE_RESIZE_HI_QUALITY

Resize source image to the destination map size (final quality).

COPY_IMAGE_USE_CUSTOM

Resize based on the Image Input Options (BitmapInfo *).

BMM_Color_fl fillcolor

Vacant areas of the bitmap are filled with fillcolor pixels if the operation specified is COPY_IMAGE_CROP and one of the source bitmap dimensions is less than the size of this bitmap.

BitmapInfo *bmInfo = NULL

When using custom options (resize to fit, positioning, etc.) this is how the flags are passed down to the Bitmap Manager. This is an optional argument – for simple copy operations, *bmInfo can default to NULL. If present, the code checks the option flags and acts accordingly.

Returns: Nonzero if the copy was performed; otherwise 0.

Implements BitmapStorage.

virtual BMMExport int CopyImage	(	Bitmap *	from,
		int	operation,
		int	fillindex
	)

virtual

Remarks: Copies the specified bitmap to this storage.

Parameters:: Bitmap *from

The source bitmap.

int operation

The type of copy to perform:

COPY_IMAGE_CROP

Copy image to current map size using cropping if necessary.

COPY_IMAGE_RESIZE_LO_QUALITY

Resize the source image to the destination map size (draft quality).

COPY_IMAGE_RESIZE_HI_QUALITY

Resize source image to the destination map size (final quality).

COPY_IMAGE_USE_CUSTOM

Resize based on the Image Input Options (BitmapInfo *).

int fillindex

Vacant areas of the bitmap are filled with fillcolor pixels if the operation specified is COPY_IMAGE_CROP and one of the source bitmap dimensions is less than the size of this bitmap.

Returns: Nonzero if the copy was performed; otherwise 0.

Implements BitmapStorage.

virtual BMMExport int GetFiltered	(	float	u,
		float	v,
		float	du,
		float	dv,
		BMM_Color_fl *	ptr
	)

virtual

Remarks: This method uses summed area table or pyramidal filtering to compute an averaged color over a specified area.

Parameters:: float u, float v

The location in the bitmap to filter. These values go from 0.0 to 1.0 across the size of the bitmap.

float du, float dv

The size of the rectangle to sample. These values go from 0.0 to 1.0 across the size of the bitmap.

BMM_Color_fl *ptr

The result is returned here - the average over the specified area.

Implements BitmapStorage.

BitmapStorageLDR Class Reference

Class Description

Public Member Functions

Additional Inherited Members

Member Function Documentation