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