Raw Data Utilities [Image Representation]

Collaboration diagram for Raw Data Utilities:

Functions
int	imImageDataSize (int width, int height, int color_mode, int data_type)
int	imImageLineSize (int width, int color_mode, int data_type)
int	imImageLineCount (int width, int color_mode)
int	imImageCheckFormat (int color_mode, int data_type)

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Detailed Description

See im_util.h

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Function Documentation

int imImageDataSize	(	int	width,
		int	height,
		int	color_mode,
		int	data_type
	)

Returns the size of the data buffer.

im.ImageDataSize(width: number, height: number, color_mode: number, data_type: number) -> datasize: number [in Lua 5] 

int imImageLineSize	(	int	width,
		int	color_mode,
		int	data_type
	)

Returns the size of one line of the data buffer.
This depends if the components are packed. If packed includes all components, if not includes only one.

im.ImageLineSize(width: number, color_mode: number, data_type: number) -> linesize: number [in Lua 5] 

int imImageLineCount	(	int	width,
		int	color_mode
	)

Returns the number of elements of one line of the data buffer.
This depends if the components are packed. If packed includes all components, if not includes only one.

im.ImageLineCount(width: number, color_mode: number) -> linecount: number [in Lua 5] 

int imImageCheckFormat	(	int	color_mode,
		int	data_type
	)

Check if the combination color_mode+data_type is valid.

im.ImageCheckFormat(color_mode: number, data_type: number) -> check: boolean [in Lua 5]