ddgImage Class Reference

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Class diagram for ddgImage:

Public Members
		ddgImage ( unsigned short ch = 4)
		Create an image but don't allocate memory. More...
		ddgImage ( unsigned short r, unsigned short c, unsigned short ch = 4)
		Create an image and allocate memory.
		~ddgImage ()
		Destroy and image.
	unsigned char*	buffer (void)
		Return the data block.
	unsigned short	channels (void)
		Return the number of channels in the image.
	void	channels (unsigned short c )
		Set the number of channels in the image.
	unsigned short	cols (void)
		Return the width of the image.
	unsigned short	rows (void)
		Return the height of the image.
	bool	allocate ( unsigned short r, unsigned short c, unsigned short ch = 0 )
		Allocate a image buffer to be filled by the user. Return true on error.
	void	set (unsigned short r, unsigned short c, unsigned char d1, unsigned char d2 = 0, unsigned char d3 = 0, unsigned char d4 = 0)
		Set a data entry in the image.
	void	get (unsigned short r, unsigned short c, unsigned char d1, unsigned char d2 = 0, unsigned char d3 = 0, unsigned char d4 = 0)
		Get a data entry in the image.
	unsigned char*	get (unsigned short r, unsigned short c, unsigned char **p)
		Get a pointer to a data entry in the image.
	void	copy (unsigned short sr, unsigned short sc,unsigned short dr, unsigned short dc)
		Copy a value from one place to another.
	void	import ( ddgImage * isrc, unsigned int sc, unsigned int sr, unsigned int dc, unsigned int dr, unsigned int nc, unsigned int nr)
		Copy block from one image to another.
	bool	readMemory ( unsigned char *buf )
		Load an image buffer from a memory buffer. More...
	bool	readFile ( ddgStr *file )
		Load an image buffer from a file try to determine the file automatically.
	bool	readRGB ( const char *filename)
		Load an image buffer from an SGI RGB file.
	bool	readTGA (const char *filename)
		Load an image buffer from a TGA file. More...
	bool	readPNG (const char *filename)
		Load an image buffer from a PNG file.
	bool	readBW (const char *filename)
		Load an image buffer from an old SGI format file.
	bool	writeTGA (const char *filename)
		Save an image buffer from a file.
	bool	writePNG (const char *filename)
		Save an image buffer to a file.
	bool	mapColorToAlpha ( unsigned char *color = NULL)
		Add an alpha component to an RGB image alpha map will be transparent where the specific color is present and solid otherwise. More...
	bool	mapLuminanceToRGBA ( void )
		Convert a LUMINANCE image to a full RGBA texture.
	bool	mapLuminanceToRGB ( void )
		Convert a LUMINANCE image to a full RGB texture.
	bool	mapBrightNessToAlpha ( void )
		Convert RGA image to RGBA image where A = ( R+G+B )/ 3.