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/*******************************************************************************
* tracetask.h
*
* ---------------------------------------------------------------------------
* Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
* Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
*
* POV-Ray is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* POV-Ray 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* ---------------------------------------------------------------------------
* POV-Ray is based on the popular DKB raytracer version 2.12.
* DKBTrace was originally written by David K. Buck.
* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
* ---------------------------------------------------------------------------
* $File: //depot/public/povray/3.x/source/backend/render/tracetask.h $
* $Revision: #1 $
* $Change: 6069 $
* $DateTime: 2013/11/06 11:59:40 $
* $Author: chrisc $
*******************************************************************************/
#ifndef POVRAY_BACKEND_TRACETASK_H
#define POVRAY_BACKEND_TRACETASK_H
#include <vector>
#include <boost/thread.hpp>
#include "backend/frame.h"
#include "backend/povray.h"
#include "backend/scene/view.h"
#include "backend/scene/scene.h"
#include "backend/render/rendertask.h"
#include "backend/render/tracepixel.h"
namespace pov
{
#ifdef PROFILE_INTERSECTIONS
// NB not thread-safe (and not intended to be)
extern POV_ULONG gIntersectionTime;
extern vector <vector<POV_ULONG> > gBSPIntersectionTimes;
extern vector <vector<POV_ULONG> > gBVHIntersectionTimes;
extern vector <vector<POV_ULONG> > *gIntersectionTimes;
#endif
class TraceTask : public RenderTask
{
public:
TraceTask(ViewData *vd, unsigned int tm, DBL js, DBL aat, unsigned int aad, GammaCurvePtr& aag, unsigned int ps, bool psc, bool final, bool hr);
virtual ~TraceTask();
virtual void Run();
virtual void Stopped();
virtual void Finish();
private:
class CooperateFunction : public Trace::CooperateFunctor
{
public:
CooperateFunction(Task& t) : task(t) { }
virtual void operator()() { task.Cooperate(); }
private:
Task& task;
};
class SubdivisionBuffer
{
public:
SubdivisionBuffer(size_t s);
void SetSample(size_t x, size_t y, const Colour& col);
bool Sampled(size_t x, size_t y);
Colour& operator()(size_t x, size_t y);
void Clear();
private:
vector<Colour> colors;
vector<bool> sampled;
size_t size;
};
unsigned int tracingMethod;
DBL jitterScale;
DBL aaThreshold;
unsigned int aaDepth;
unsigned int previewSize;
bool previewSkipCorner;
bool finalTrace;
bool highReproducibility;
GammaCurvePtr aaGamma;
/// tracing core
TracePixel trace;
CooperateFunction cooperate;
MediaFunction media;
RadiosityFunction radiosity;
PhotonGatherer photonGatherer;
void SimpleSamplingM0();
void SimpleSamplingM0P();
void NonAdaptiveSupersamplingM1();
void AdaptiveSupersamplingM2();
void NonAdaptiveSupersamplingForOnePixel(DBL x, DBL y, Colour& leftcol, Colour& topcol, Colour& curcol, bool& sampleleft, bool& sampletop, bool& samplecurrent);
void SupersampleOnePixel(DBL x, DBL y, Colour& col);
void SubdivideOnePixel(DBL x, DBL y, DBL d, size_t bx, size_t by, size_t bstep, SubdivisionBuffer& buffer, Colour& result, int level);
};
}
#endif // POVRAY_BACKEND_TRACETASK_H
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