1 /* 2 * Copyright 2015 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "VisualStreamTimingModule.h" 9 10 #include "SkCanvas.h" 11 12 DEFINE_bool(reset, true, "Reset the GL context between samples."); 13 VisualStreamTimingModule(VisualBench * owner)14 VisualStreamTimingModule::VisualStreamTimingModule(VisualBench* owner) 15 : fInitState(kReset_InitState) 16 , fOwner(owner) { 17 fBenchmarkStream.reset(new VisualBenchmarkStream(owner->getSurfaceProps())); 18 } 19 handleInitState(SkCanvas * canvas)20 inline void VisualStreamTimingModule::handleInitState(SkCanvas* canvas) { 21 switch (fInitState) { 22 case kNewBenchmark_InitState: 23 fBenchmarkStream->current()->delayedSetup(); 24 // fallthrough 25 case kReset_InitState: 26 // This will flicker unfortunately, but as we are reseting the GLContext each bench, 27 // we unfortunately don't have a choice 28 fOwner->clear(canvas, SK_ColorWHITE, 3); 29 fBenchmarkStream->current()->preTimingHooks(canvas); 30 break; 31 case kNone_InitState: 32 break; 33 } 34 fInitState = kNone_InitState; 35 } 36 handleTimingEvent(SkCanvas * canvas,TimingStateMachine::ParentEvents event)37 inline void VisualStreamTimingModule::handleTimingEvent(SkCanvas* canvas, 38 TimingStateMachine::ParentEvents event) { 39 switch (event) { 40 case TimingStateMachine::kTiming_ParentEvents: 41 break; 42 case TimingStateMachine::kTimingFinished_ParentEvents: 43 if (this->timingFinished(fBenchmarkStream->current(), fTSM.loops(), 44 fTSM.lastMeasurement())) { 45 fBenchmarkStream->current()->postTimingHooks(canvas); 46 fOwner->reset(); 47 fTSM.nextBenchmark(); 48 if (!fBenchmarkStream->next()) { 49 SkDebugf("Exiting VisualBench successfully\n"); 50 fOwner->closeWindow(); 51 } else { 52 fInitState = kNewBenchmark_InitState; 53 } 54 break; 55 } 56 // fallthrough 57 case TimingStateMachine::kReset_ParentEvents: 58 if (FLAGS_reset) { 59 fBenchmarkStream->current()->postTimingHooks(canvas); 60 fOwner->reset(); 61 fInitState = kReset_InitState; 62 } 63 break; 64 } 65 } 66 draw(SkCanvas * canvas)67 void VisualStreamTimingModule::draw(SkCanvas* canvas) { 68 if (!fBenchmarkStream->current()) { 69 // this should never happen but just to be safe 70 // TODO research why this does happen on mac 71 return; 72 } 73 74 this->handleInitState(canvas); 75 this->renderFrame(canvas, fBenchmarkStream->current(), fTSM.loops()); 76 fOwner->present(); 77 TimingStateMachine::ParentEvents event = fTSM.nextFrame(FLAGS_reset); 78 this->handleTimingEvent(canvas, event); 79 } 80