| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef Viewer_DEFINED |
| #define Viewer_DEFINED |
| |
| #include "sk_app/Application.h" |
| #include "sk_app/CommandSet.h" |
| #include "sk_app/Window.h" |
| #include "gm.h" |
| #include "SkAnimTimer.h" |
| #include "SkTouchGesture.h" |
| #include "Slide.h" |
| |
| class SkCanvas; |
| |
| class Viewer : public sk_app::Application { |
| public: |
| Viewer(int argc, char** argv, void* platformData); |
| ~Viewer() override; |
| |
| void onBackendCreated(); |
| void onPaint(SkCanvas* canvas); |
| void onIdle() override; |
| bool onTouch(intptr_t owner, sk_app::Window::InputState state, float x, float y); |
| bool onMouse(float x, float y, sk_app::Window::InputState state, uint32_t modifiers); |
| void onUIStateChanged(const SkString& stateName, const SkString& stateValue); |
| bool onKey(sk_app::Window::Key key, sk_app::Window::InputState state, uint32_t modifiers); |
| bool onChar(SkUnichar c, uint32_t modifiers); |
| |
| private: |
| enum class ColorMode { |
| kLegacy, // N32, no color management |
| kColorManagedSRGB8888_NonLinearBlending, // N32, sRGB transfer function, nonlinear blending |
| kColorManagedSRGB8888, // N32, sRGB transfer function, linear blending |
| kColorManagedLinearF16, // F16, linear transfer function, linear blending |
| }; |
| |
| void initSlides(); |
| void updateTitle(); |
| void setBackend(sk_app::Window::BackendType); |
| void setColorMode(ColorMode); |
| void setStartupSlide(); |
| void setupCurrentSlide(int previousSlide); |
| void listNames(); |
| void resetMeasurements(); |
| |
| void updateUIState(); |
| |
| void drawSlide(SkCanvas* canvs); |
| void drawStats(SkCanvas* canvas); |
| void drawImGui(SkCanvas* canvas); |
| |
| void changeZoomLevel(float delta); |
| SkMatrix computeMatrix(); |
| |
| sk_app::Window* fWindow; |
| |
| static const int kMeasurementCount = 1 << 6; // should be power of 2 for fast mod |
| double fPaintTimes[kMeasurementCount]; |
| double fFlushTimes[kMeasurementCount]; |
| double fAnimateTimes[kMeasurementCount]; |
| int fCurrentMeasurement; |
| double fCumulativeMeasurementTime; |
| int fCumulativeMeasurementCount; |
| |
| SkAnimTimer fAnimTimer; |
| SkTArray<sk_sp<Slide>> fSlides; |
| int fCurrentSlide; |
| |
| bool fDisplayStats; |
| bool fRefresh; // whether to continuously refresh for measuring render time |
| |
| SkPaint fImGuiFontPaint; |
| SkPaint fImGuiGamutPaint; |
| bool fShowImGuiDebugWindow; |
| bool fShowImGuiTestWindow; |
| |
| bool fShowZoomWindow; |
| sk_sp<SkImage> fLastImage; |
| |
| sk_app::Window::BackendType fBackendType; |
| |
| // Color properties for slide rendering |
| ColorMode fColorMode; |
| SkColorSpacePrimaries fColorSpacePrimaries; |
| SkColorSpaceTransferFn fColorSpaceTransferFn; |
| |
| // transform data |
| SkScalar fZoomLevel; |
| |
| sk_app::CommandSet fCommands; |
| |
| enum class GestureDevice { |
| kNone, |
| kTouch, |
| kMouse, |
| }; |
| |
| SkTouchGesture fGesture; |
| GestureDevice fGestureDevice; |
| |
| // identity unless the window initially scales the content to fit the screen. |
| SkMatrix fDefaultMatrix; |
| |
| SkTArray<std::function<void(void)>> fDeferredActions; |
| |
| Json::Value fAllSlideNames; // cache all slide names for fast updateUIState |
| }; |
| |
| |
| #endif |