1 2 /* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 #include "BenchTimer.h" 9 #if defined(SK_BUILD_FOR_WIN32) 10 #include "BenchSysTimer_windows.h" 11 #elif defined(SK_BUILD_FOR_MAC) 12 #include "BenchSysTimer_mach.h" 13 #elif defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID) 14 #include "BenchSysTimer_posix.h" 15 #else 16 #include "BenchSysTimer_c.h" 17 #endif 18 19 #if SK_SUPPORT_GPU 20 #include "BenchGpuTimer_gl.h" 21 #endif 22 BenchTimer(SkGLContextHelper * gl)23BenchTimer::BenchTimer(SkGLContextHelper* gl) 24 : fCpu(-1.0) 25 , fWall(-1.0) 26 , fTruncatedCpu(-1.0) 27 , fTruncatedWall(-1.0) 28 , fGpu(-1.0) 29 { 30 fSysTimer = new BenchSysTimer(); 31 fTruncatedSysTimer = new BenchSysTimer(); 32 #if SK_SUPPORT_GPU 33 if (gl) { 34 fGpuTimer = new BenchGpuTimer(gl); 35 } else { 36 fGpuTimer = NULL; 37 } 38 #endif 39 } 40 ~BenchTimer()41BenchTimer::~BenchTimer() { 42 delete fSysTimer; 43 delete fTruncatedSysTimer; 44 #if SK_SUPPORT_GPU 45 delete fGpuTimer; 46 #endif 47 } 48 start(double durationScale)49void BenchTimer::start(double durationScale) { 50 fDurationScale = durationScale; 51 52 fSysTimer->startWall(); 53 fTruncatedSysTimer->startWall(); 54 #if SK_SUPPORT_GPU 55 if (fGpuTimer) { 56 fGpuTimer->startGpu(); 57 } 58 #endif 59 fSysTimer->startCpu(); 60 fTruncatedSysTimer->startCpu(); 61 } 62 end()63void BenchTimer::end() { 64 fCpu = fSysTimer->endCpu() * fDurationScale; 65 #if SK_SUPPORT_GPU 66 //It is important to stop the cpu clocks first, 67 //as the following will cpu wait for the gpu to finish. 68 if (fGpuTimer) { 69 fGpu = fGpuTimer->endGpu() * fDurationScale; 70 } 71 #endif 72 fWall = fSysTimer->endWall() * fDurationScale; 73 } 74 truncatedEnd()75void BenchTimer::truncatedEnd() { 76 fTruncatedCpu = fTruncatedSysTimer->endCpu() * fDurationScale; 77 fTruncatedWall = fTruncatedSysTimer->endWall() * fDurationScale; 78 } 79