Bunch of utility static methods to process/analyze an image line. More...

Static Public Member Functions
static int[]	Palette2rgb (ImageLine line, PngChunkPLTE pal, PngChunkTRNS trns, int[] buf)
	Given an indexed line with a palette, unpacks as a RGB array

static int[]	Palette2rgb (ImageLine line, PngChunkPLTE pal, int[] buf)

static int	ToARGB8 (int r, int g, int b)

static int	ToARGB8 (int r, int g, int b, int a)

static int	ToARGB8 (int[] buff, int offset, bool alpha)

static int	ToARGB8 (byte[] buff, int offset, bool alpha)

static void	FromARGB8 (int val, int[] buff, int offset, bool alpha)

static void	FromARGB8 (int val, byte[] buff, int offset, bool alpha)

static int	GetPixelToARGB8 (ImageLine line, int column)

static void	SetPixelFromARGB8 (ImageLine line, int column, int argb)

static void	SetPixel (ImageLine line, int col, int r, int g, int b, int a)

static void	SetPixel (ImageLine line, int col, int r, int g, int b)

static double	ReadDouble (ImageLine line, int pos)

static void	WriteDouble (ImageLine line, double d, int pos)

static int	Interpol (int a, int b, int c, int d, double dx, double dy)

static int	ClampTo_0_255 (int i)

static double	ClampDouble (double i)

static int	ClampTo_0_65535 (int i)

static int	ClampTo_128_127 (int x)

static int[]	Unpack (ImageInfo imgInfo, int[] src, int[] dst, bool scale)

static byte[]	Unpack (ImageInfo imgInfo, byte[] src, byte[] dst, bool scale)

static int[]	Pack (ImageInfo imgInfo, int[] src, int[] dst, bool scale)

static byte[]	Pack (ImageInfo imgInfo, byte[] src, byte[] dst, bool scale)

Detailed Description

Bunch of utility static methods to process/analyze an image line.

Not essential at all, some methods are probably to be removed if future releases.

TODO: document this better

Member Function Documentation

static int [] Hjg.Pngcs.ImageLineHelper.Palette2rgb	(	ImageLine	line,
		PngChunkPLTE	pal,
		PngChunkTRNS	trns,
		int[]	buf
	)

static

Given an indexed line with a palette, unpacks as a RGB array

Parameters

line	ImageLine as returned from PngReader
pal	Palette chunk
trns	TRNS chunk (optional)
buf	Preallocated array, optional

Returns: R G B (one byte per sample)

static int [] Hjg.Pngcs.ImageLineHelper.Palette2rgb	(	ImageLine	line,
		PngChunkPLTE	pal,
		int[]	buf
	)

static

static int Hjg.Pngcs.ImageLineHelper.ToARGB8	(	int	r,
		int	g,
		int	b
	)

static

static int Hjg.Pngcs.ImageLineHelper.ToARGB8	(	int	r,
		int	g,
		int	b,
		int	a
	)

static

static int Hjg.Pngcs.ImageLineHelper.ToARGB8	(	int[]	buff,
		int	offset,
		bool	alpha
	)

static

static int Hjg.Pngcs.ImageLineHelper.ToARGB8	(	byte[]	buff,
		int	offset,
		bool	alpha
	)

static

static void Hjg.Pngcs.ImageLineHelper.FromARGB8	(	int	val,
		int[]	buff,
		int	offset,
		bool	alpha
	)

static

static void Hjg.Pngcs.ImageLineHelper.FromARGB8	(	int	val,
		byte[]	buff,
		int	offset,
		bool	alpha
	)

static

static int Hjg.Pngcs.ImageLineHelper.GetPixelToARGB8	(	ImageLine	line,
		int	column
	)

static

static void Hjg.Pngcs.ImageLineHelper.SetPixelFromARGB8	(	ImageLine	line,
		int	column,
		int	argb
	)

static

static void Hjg.Pngcs.ImageLineHelper.SetPixel	(	ImageLine	line,
		int	col,
		int	r,
		int	g,
		int	b,
		int	a
	)

static

static void Hjg.Pngcs.ImageLineHelper.SetPixel	(	ImageLine	line,
		int	col,
		int	r,
		int	g,
		int	b
	)

static

static double Hjg.Pngcs.ImageLineHelper.ReadDouble	(	ImageLine	line,
		int	pos
	)

static

static void Hjg.Pngcs.ImageLineHelper.WriteDouble	(	ImageLine	line,
		double	d,
		int	pos
	)

static

static int Hjg.Pngcs.ImageLineHelper.Interpol	(	int	a,
		int	b,
		int	c,
		int	d,
		double	dx,
		double	dy
	)

static

static int Hjg.Pngcs.ImageLineHelper.ClampTo_0_255 ( int i )

static

static double Hjg.Pngcs.ImageLineHelper.ClampDouble ( double i )

static

[0,1)

static int Hjg.Pngcs.ImageLineHelper.ClampTo_0_65535 ( int i )

static

static int Hjg.Pngcs.ImageLineHelper.ClampTo_128_127 ( int x )

static

static int [] Hjg.Pngcs.ImageLineHelper.Unpack	(	ImageInfo	imgInfo,
		int[]	src,
		int[]	dst,
		bool	scale
	)

static

static byte [] Hjg.Pngcs.ImageLineHelper.Unpack	(	ImageInfo	imgInfo,
		byte[]	src,
		byte[]	dst,
		bool	scale
	)

static

static int [] Hjg.Pngcs.ImageLineHelper.Pack	(	ImageInfo	imgInfo,
		int[]	src,
		int[]	dst,
		bool	scale
	)

static

static byte [] Hjg.Pngcs.ImageLineHelper.Pack	(	ImageInfo	imgInfo,
		byte[]	src,
		byte[]	dst,
		bool	scale
	)

static

Static Public Member Functions

Detailed Description

Member Function Documentation