/* * Copyright 2017 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #ifndef StatsLayer_DEFINED #define StatsLayer_DEFINED #include "include/core/SkColor.h" #include "include/core/SkString.h" #include "tools/sk_app/Window.h" class StatsLayer : public sk_app::Window::Layer { public: StatsLayer(); void resetMeasurements(); typedef int Timer; Timer addTimer(const char* label, SkColor color, SkColor labelColor = 0); void beginTiming(Timer); void endTiming(Timer); void onPrePaint() override; void onPaint(SkSurface*) override; void setDisplayScale(float scale) { fDisplayScale = scale; } private: static const int kMeasurementCount = 1 << 6; // should be power of 2 for fast mod struct TimerData { double fTimes[kMeasurementCount]; SkString fLabel; SkColor fColor; SkColor fLabelColor; }; SkTArray fTimers; double fTotalTimes[kMeasurementCount]; int fCurrentMeasurement; double fLastTotalBegin; double fCumulativeMeasurementTime; int fCumulativeMeasurementCount; float fDisplayScale; }; #endif