sampler.h

#ifdef _MSC_VER
#pragma once
#endif

#ifndef _SPICA_SAMPLER_H_
#define _SPICA_SAMPLER_H_

#include <memory>

#include "core/common.h"
#include "core/cobject.h"
#include "core/uncopyable.h"
#include "core/point2d.h"

namespace spica {

    class SPICA_EXPORTS Sampler : public CObject, Uncopyable {
    public:
        virtual ~Sampler() {}

        virtual double  get1D() = 0;
        virtual Point2d get2D() {
            return Point2d{ get1D(), get1D() };   
        }

        virtual bool startNextSample() { return true; }
        virtual void startPixel() { }

        virtual std::unique_ptr<Sampler> clone(unsigned int seed = 0) const = 0;
    };

}  // namespace spica

#endif  // _SPICA_SAMPLER_H_