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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 "VisualInteractiveModule.h" | |
9 | |
10 #include "SkCanvas.h" | |
11 #include "SkCommandLineFlags.h" | |
12 | |
13 VisualInteractiveModule::VisualInteractiveModule(VisualBench* owner) | |
14 : INHERITED(owner) | |
15 , fCurrentMeasurement(0) | |
16 , fAdvance(false) { | |
17 memset(fMeasurements, 0, sizeof(fMeasurements)); | |
18 } | |
19 | |
20 void VisualInteractiveModule::renderFrame(SkCanvas* canvas, Benchmark* benchmark
, int loops) { | |
21 benchmark->draw(loops, canvas); | |
22 this->drawStats(canvas); | |
23 canvas->flush(); | |
24 } | |
25 | |
26 void VisualInteractiveModule::drawStats(SkCanvas* canvas) { | |
27 static const float kPixelPerMS = 2.0f; | |
28 static const int kDisplayWidth = 130; | |
29 static const int kDisplayHeight = 100; | |
30 static const int kDisplayPadding = 10; | |
31 static const int kGraphPadding = 3; | |
32 static const float kBaseMS = 1000.f / 60.f; // ms/frame to hit 60 fps | |
33 | |
34 SkISize canvasSize = canvas->getDeviceSize(); | |
35 SkRect rect = SkRect::MakeXYWH(SkIntToScalar(canvasSize.fWidth-kDisplayWidth
-kDisplayPadding), | |
36 SkIntToScalar(kDisplayPadding), | |
37 SkIntToScalar(kDisplayWidth), SkIntToScalar(k
DisplayHeight)); | |
38 SkPaint paint; | |
39 canvas->clipRect(rect); | |
40 paint.setColor(SK_ColorBLACK); | |
41 canvas->drawRect(rect, paint); | |
42 // draw the 16ms line | |
43 paint.setColor(SK_ColorLTGRAY); | |
44 canvas->drawLine(rect.fLeft, rect.fBottom - kBaseMS*kPixelPerMS, | |
45 rect.fRight, rect.fBottom - kBaseMS*kPixelPerMS, paint); | |
46 paint.setColor(SK_ColorRED); | |
47 paint.setStyle(SkPaint::kStroke_Style); | |
48 canvas->drawRect(rect, paint); | |
49 | |
50 int x = SkScalarTruncToInt(rect.fLeft) + kGraphPadding; | |
51 const int xStep = 2; | |
52 const int startY = SkScalarTruncToInt(rect.fBottom); | |
53 int i = fCurrentMeasurement; | |
54 do { | |
55 int endY = startY - (int)(fMeasurements[i] * kPixelPerMS + 0.5); // rou
nd to nearest value | |
56 canvas->drawLine(SkIntToScalar(x), SkIntToScalar(startY), | |
57 SkIntToScalar(x), SkIntToScalar(endY), paint); | |
58 i++; | |
59 i &= (kMeasurementCount - 1); // fast mod | |
60 x += xStep; | |
61 } while (i != fCurrentMeasurement); | |
62 | |
63 } | |
64 | |
65 bool VisualInteractiveModule::timingFinished(Benchmark* benchmark, int loops, do
uble measurement) { | |
66 // Record measurements | |
67 fMeasurements[fCurrentMeasurement++] = measurement; | |
68 fCurrentMeasurement &= (kMeasurementCount-1); // fast mod | |
69 SkASSERT(fCurrentMeasurement < kMeasurementCount); | |
70 if (fAdvance) { | |
71 fAdvance = false; | |
72 return true; | |
73 } | |
74 return false; | |
75 } | |
76 | |
77 bool VisualInteractiveModule::onHandleChar(SkUnichar c) { | |
78 if (' ' == c) { | |
79 fAdvance = true; | |
80 } | |
81 | |
82 return true; | |
83 } | |
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