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/*
* 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 "ImGuiLayer.h"
#include "SkAnimTimer.h"
#include "SkExecutor.h"
#include "SkJSONCPP.h"
#include "SkTouchGesture.h"
#include "Slide.h"
#include "StatsLayer.h"
class SkCanvas;
class Viewer : public sk_app::Application, sk_app::Window::Layer {
public:
Viewer(int argc, char** argv, void* platformData);
~Viewer() override;
void onIdle() override;
void onBackendCreated() override;
void onPaint(SkCanvas* canvas) override;
bool onTouch(intptr_t owner, sk_app::Window::InputState state, float x, float y) override;
bool onMouse(int x, int y, sk_app::Window::InputState state, uint32_t modifiers) override;
void onUIStateChanged(const SkString& stateName, const SkString& stateValue) override;
bool onKey(sk_app::Window::Key key, sk_app::Window::InputState state, uint32_t modifiers) override;
bool onChar(SkUnichar c, uint32_t modifiers) override;
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);
int startupSlide() const;
void setCurrentSlide(int);
void setupCurrentSlide();
void listNames() const;
void updateUIState();
void drawSlide(SkCanvas* canvs);
void drawImGui();
void changeZoomLevel(float delta);
SkMatrix computeMatrix();
void resetExecutor() {
fExecutor = SkExecutor::MakeFIFOThreadPool(fThreadCnt == 0 ? fTileCnt : fThreadCnt);
}
sk_app::Window* fWindow;
StatsLayer fStatsLayer;
StatsLayer::Timer fPaintTimer;
StatsLayer::Timer fFlushTimer;
StatsLayer::Timer fAnimateTimer;
SkAnimTimer fAnimTimer;
SkTArray<sk_sp<Slide>> fSlides;
int fCurrentSlide;
bool fRefresh; // whether to continuously refresh for measuring render time
bool fSaveToSKP;
ImGuiLayer fImGuiLayer;
SkPaint fImGuiGamutPaint;
bool fShowImGuiDebugWindow;
bool fShowSlidePicker;
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
int fTileCnt;
int fThreadCnt;
std::unique_ptr<SkExecutor> fExecutor;
};
#endif
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