80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "VisualStreamTimingModule.h"
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#include "SkCanvas.h"
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DEFINE_bool(reset, true, "Reset the GL context between samples.");
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VisualStreamTimingModule::VisualStreamTimingModule(VisualBench* owner)
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: fInitState(kReset_InitState)
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, fOwner(owner) {
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fBenchmarkStream.reset(new VisualBenchmarkStream(owner->getSurfaceProps()));
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}
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inline void VisualStreamTimingModule::handleInitState(SkCanvas* canvas) {
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switch (fInitState) {
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case kNewBenchmark_InitState:
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fBenchmarkStream->current()->delayedSetup();
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// fallthrough
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case kReset_InitState:
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// This will flicker unfortunately, but as we are reseting the GLContext each bench,
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// we unfortunately don't have a choice
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fOwner->clear(canvas, SK_ColorWHITE, 3);
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fBenchmarkStream->current()->preTimingHooks(canvas);
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break;
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case kNone_InitState:
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break;
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}
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fInitState = kNone_InitState;
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}
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inline void VisualStreamTimingModule::handleTimingEvent(SkCanvas* canvas,
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TimingStateMachine::ParentEvents event) {
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switch (event) {
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case TimingStateMachine::kTiming_ParentEvents:
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break;
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case TimingStateMachine::kTimingFinished_ParentEvents:
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if (this->timingFinished(fBenchmarkStream->current(), fTSM.loops(),
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fTSM.lastMeasurement())) {
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fBenchmarkStream->current()->postTimingHooks(canvas);
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fOwner->reset();
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fTSM.nextBenchmark();
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if (!fBenchmarkStream->next()) {
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SkDebugf("Exiting VisualBench successfully\n");
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fOwner->closeWindow();
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} else {
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fInitState = kNewBenchmark_InitState;
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}
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break;
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}
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// fallthrough
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case TimingStateMachine::kReset_ParentEvents:
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if (FLAGS_reset) {
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fBenchmarkStream->current()->postTimingHooks(canvas);
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fOwner->reset();
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fInitState = kReset_InitState;
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}
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break;
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}
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}
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void VisualStreamTimingModule::draw(SkCanvas* canvas) {
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if (!fBenchmarkStream->current()) {
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// this should never happen but just to be safe
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// TODO research why this does happen on mac
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return;
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}
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this->handleInitState(canvas);
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this->renderFrame(canvas, fBenchmarkStream->current(), fTSM.loops());
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fOwner->present();
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TimingStateMachine::ParentEvents event = fTSM.nextFrame(FLAGS_reset);
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this->handleTimingEvent(canvas, event);
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}
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