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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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