image.cpp File Reference

Classes
class	os::Image::Private
class	os::BitmapImage::Private
struct	contrib
struct	contriblist

Macros
#define	CLAMP255(x)   ( x > 255 ? 255 : x )
#define	B   (1.0f / 3.0f)
#define	C   (1.0f / 3.0f)

Typedefs
typedef float(	scale_filterfunc )(float)

Enumerations
enum	bitmapscale_filtertype {   filter_filter,   filter_box,   filter_triangle,   filter_bell,   filter_bspline,   filter_lanczos3,   filter_mitchell }

Functions
void	Scale (Bitmap *srcbitmap, Bitmap *dstbitmap, bitmapscale_filtertype filtertype, float filterwidth=0.0f)
int	clamp (int v, int l, int h)
contriblist *	CalcFilterWeight (float scale, float filterwidth, int srcsize, int dstsize, scale_filterfunc *filterfunc)

Macro Definition Documentation

#define B   (1.0f / 3.0f)

#define C   (1.0f / 3.0f)

#define CLAMP255

(

x

)

( x > 255 ? 255 : x )

Referenced by os::BitmapImage::ColorizeFilter(), os::BitmapImage::GrayFilter(), and os::BitmapImage::HighlightFilter().

Typedef Documentation

typedef float( scale_filterfunc)(float)

Enumeration Type Documentation

enum bitmapscale_filtertype

Enumerator
filter_filter
filter_box
filter_triangle
filter_bell
filter_bspline
filter_lanczos3
filter_mitchell

Function Documentation

contriblist* CalcFilterWeight	(	float	scale,
		float	filterwidth,
		int	srcsize,
		int	dstsize,
		scale_filterfunc *	filterfunc
	)

References contriblist::contribcnt, contriblist::contribs, contrib::floatweight, contrib::sourcepos, and contrib::weight.

Referenced by Scale().

int clamp	(	int	v,
		int	l,
		int	h
	)

Referenced by Scale().

void Scale	(	Bitmap *	srcbitmap,
		Bitmap *	dstbitmap,
		bitmapscale_filtertype	filtertype,
		float	filterwidth = 0.0f
	)

References CalcFilterWeight(), clamp(), contriblist::contribcnt, contriblist::contribs, filter_bell, filter_box, filter_bspline, filter_filter, filter_lanczos3, filter_mitchell, filter_triangle, os::Bitmap::GetBounds(), os::Bitmap::GetBytesPerRow(), os::Rect::Height(), os::Bitmap::LockRaster(), contrib::sourcepos, contrib::weight, and os::Rect::Width().

Referenced by os::BitmapImage::SetSize().