sched.h

/*
    Lightmetrica : A research-oriented renderer

    Copyright (c) 2014 Hisanari Otsu

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#pragma once
#ifndef LIB_LIGHTMETRICA_RENDER_SCHED_H
#define LIB_LIGHTMETRICA_RENDER_SCHED_H

#include "component.h"
#include <boost/signals2.hpp>

LM_NAMESPACE_BEGIN

enum class TerminationMode
{
    Samples,            
    Time,               
};

// --------------------------------------------------------------------------------

class ConfigNode;
class Assets;
class Renderer;
class Scene;

class RenderProcessScheduler : public Component
{
public:

    LM_COMPONENT_INTERFACE_DEF("rendersched");

public:

    RenderProcessScheduler() {}
    virtual ~RenderProcessScheduler() {}

private:

    LM_DISABLE_COPY_AND_MOVE(RenderProcessScheduler);

public:

    virtual bool Configure(const ConfigNode& node, const Assets& assets) = 0;

    virtual void SetTerminationMode(TerminationMode mode, double time) = 0;

    virtual bool Render(Renderer& renderer, const Scene& scene) const = 0;

    virtual boost::signals2::connection Connect_ReportProgress(const std::function<void (double, bool)>& func) = 0;

};

// --------------------------------------------------------------------------------

class SamplingBasedRenderProcessScheduler : public RenderProcessScheduler
{
public:

    SamplingBasedRenderProcessScheduler() {}
    virtual ~SamplingBasedRenderProcessScheduler() override {}

public:

    virtual long long NumSamples() const = 0;

};

LM_NAMESPACE_END

#endif // LIB_LIGHTMETRICA_RENDER_SCHED_H