111 lines
3.8 KiB
C++
111 lines
3.8 KiB
C++
/*******************************************************************************
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* statistics.h
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*
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* ---------------------------------------------------------------------------
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* Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
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* Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
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*
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* POV-Ray is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* POV-Ray is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* ---------------------------------------------------------------------------
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* POV-Ray is based on the popular DKB raytracer version 2.12.
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* DKBTrace was originally written by David K. Buck.
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* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
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* ---------------------------------------------------------------------------
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* $File: //depot/public/povray/3.x/source/backend/support/statistics.h $
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* $Revision: #1 $
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* $Change: 6069 $
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* $DateTime: 2013/11/06 11:59:40 $
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* $Author: chrisc $
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*******************************************************************************/
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#ifndef POVRAY_BACKEND_STATISTICS_H
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#define POVRAY_BACKEND_STATISTICS_H
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#include <vector>
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#include "backend/frame.h"
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#include "base/types.h"
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#include "statspov.h"
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namespace pov
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{
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using namespace pov_base;
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template <typename T>
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class Counter
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{
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public:
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Counter() { value = 0; } // assumes for all types of T that 0 is a valid assignment
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virtual ~Counter() { }
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inline T operator+(T other) { return value + other; }
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inline T operator-(T other) { return value - other; }
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inline T operator++(int) { return value++; }
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inline T operator--(int) { return value--; }
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inline void operator+=(T other) { value += other; }
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inline void operator-=(T other) { value -= other; }
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inline const T operator=(T other) { value = other; return value; }
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inline operator T() const { return value; }
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bool SafeRead(unsigned int maxattempts, T *result) const;
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private:
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volatile T value;
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};
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template <typename T, int numElem>
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class StatisticsBase
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{
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public:
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StatisticsBase() {}
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virtual ~StatisticsBase() {}
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inline Counter<T>& operator[](size_t idx) { return counters[idx]; }
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inline Counter<T> operator[](size_t idx) const { return counters[idx]; }
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void operator+=(const StatisticsBase& other);
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StatisticsBase operator+(const StatisticsBase& other);
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void clear();
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private:
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Counter<T> counters[numElem];
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};
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typedef StatisticsBase<POV_ULONG, MaxIntStat> IntStatistics;
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typedef StatisticsBase<double, MaxFPStat> FPStatistics;
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class RenderStatistics
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{
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public:
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RenderStatistics() {}
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virtual ~RenderStatistics() {}
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inline Counter<POV_ULONG>& operator[](IntStatsIndex idx) { return intStats[idx]; }
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inline Counter<POV_ULONG> operator[](IntStatsIndex idx) const { return intStats[idx]; }
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inline Counter<double>& operator[](FPStatsIndex idx) { return fpStats[idx]; }
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inline Counter<double> operator[](FPStatsIndex idx) const { return fpStats[idx]; }
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inline operator IntStatistics&() { return intStats; }
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inline operator IntStatistics() const { return intStats; }
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inline operator FPStatistics&() { return fpStats; }
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inline operator FPStatistics() const { return fpStats; }
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inline void operator+=(const RenderStatistics& rhs) { intStats += rhs.intStats; fpStats += rhs.fpStats; }
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protected:
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IntStatistics intStats;
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FPStatistics fpStats;
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};
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}
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#endif // POVRAY_BACKEND_STATISTICS_H
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