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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkBenchTimer_DEFINED
#define SkBenchTimer_DEFINED
#include <SkTypes.h>
class BenchSysTimer;
class BenchGpuTimer;
class SkGLContextHelper;
/**
* SysTimers and GpuTimers are implemented orthogonally.
* This class combines 2 SysTimers and a GpuTimer into one single,
* platform specific Timer with a simple interface. The truncated
* timer doesn't include the time required for the GPU to finish
* its rendering. It should always be <= the un-truncated system
* times and (for GPU configurations) can be used to roughly (very
* roughly) gauge the GPU load/backlog.
*/
class BenchTimer {
public:
BenchTimer(SkGLContextHelper* gl = NULL);
~BenchTimer();
void start(double durationScale = 1);
void end();
void truncatedEnd();
double fCpu;
double fWall;
double fTruncatedCpu;
double fTruncatedWall;
double fGpu;
private:
BenchSysTimer *fSysTimer;
BenchSysTimer *fTruncatedSysTimer;
#if SK_SUPPORT_GPU
BenchGpuTimer *fGpuTimer;
#endif
double fDurationScale; // for this start/end session
};
#endif
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