1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/xfermap.h	Tue Dec 30 06:22:54 2014 +0200
     1.3 @@ -0,0 +1,35 @@
     1.4 +#ifndef XFERMAP_H_
     1.5 +#define XFERMAP_H_
     1.6 +
     1.7 +class TransferFunc {
     1.8 +public:
     1.9 +	virtual ~TransferFunc();
    1.10 +
    1.11 +	virtual float map(float x) const = 0;
    1.12 +	virtual void map(float x, float *rgba_value) const = 0;
    1.13 +};
    1.14 +
    1.15 +class TransferWindow : public TransferFunc {
    1.16 +private:
    1.17 +	float soft_rad;
    1.18 +	float low[4], high[4];	// rgb
    1.19 +
    1.20 +public:
    1.21 +	TransferWindow();
    1.22 +
    1.23 +	void set_interval(float a, float b);
    1.24 +	void set_interval(float *rgba_low, float *rgba_high);
    1.25 +	void set_interval_rgba(int channel, float a, float b);
    1.26 +
    1.27 +	void get_interval(float *aptr, float *bptr) const;
    1.28 +	void get_interval_rgba(float *rgba_low, float *rgba_high) const;
    1.29 +	void get_interval_rgba(int channel, float *aptr, float *bptr) const;
    1.30 +
    1.31 +	void set_soft_radius(float s);
    1.32 +	float get_soft_radius() const;
    1.33 +
    1.34 +	float map(float x) const;
    1.35 +	void map(float x, float *rgba_value) const;
    1.36 +};
    1.37 +
    1.38 +#endif	// XFERMAP_H_