skia2/bench/BenchTimer.h
reed@google.com ef77ec2104 extend SkBenchmark to allow a bench to return a durationScale, which allows it to perform fewer actual interations, but report a scale factor to account for that. Thus a very slow bench can be compared head-to-head with a faster one, w/o actually forcing the tool to run for the full duration of the slower test.
Extend BitmapBench to time bicubic filtering, and use this durationScale for it.

Extend SkBenchmark to have setBitmapFlags(or, clear), allowing it to request a set of paint flags to be cleared, and set to be set.

BUG=
R=robertphillips@google.com

Review URL: https://codereview.chromium.org/16069010

git-svn-id: http://skia.googlecode.com/svn/trunk@9315 2bbb7eff-a529-9590-31e7-b0007b416f81
2013-05-29 15:39:54 +00:00

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1.2 KiB
C++

/*
* 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