0446bcdaa1
* Qt: Initial support for Metal renderer * Clean up graphics context code * Nits * More nits * Qt: Move screen-related stuff to own folder * Qt: Make screen widget polymorphic * Qt: Re-add Metal * Add factory for screen widget * Qt: Support compilation without Metal * Qt: Fix build without Metal * Oops * oops
65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
#pragma once
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#include <QWidget>
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#include <functional>
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#include "gl/context.h"
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#include "screen_layout.hpp"
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#include "window_info.h"
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// Abstract screen widget for drawing the 3DS screen. We've got a child class for each graphics API (ScreenWidgetGL, ScreenWidgetMTL, ...)
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class ScreenWidget : public QWidget {
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Q_OBJECT
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public:
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using ResizeCallback = std::function<void(u32, u32)>;
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enum class API { OpenGL, Metal, Vulkan };
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ScreenWidget(API api, ResizeCallback resizeCallback, QWidget* parent = nullptr);
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virtual ~ScreenWidget() {}
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void resizeEvent(QResizeEvent* event) override;
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virtual GL::Context* getGLContext() { return nullptr; }
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virtual void* getMTKLayer() { return nullptr; }
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// Dimensions of our output surface
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u32 surfaceWidth = 0;
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u32 surfaceHeight = 0;
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WindowInfo windowInfo;
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// Cached "previous" dimensions, used when resizing our window
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u32 previousWidth = 0;
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u32 previousHeight = 0;
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API api = API::OpenGL;
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// Coordinates (x/y/width/height) for the two screens in window space, used for properly handling touchscreen
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ScreenLayout::WindowCoordinates screenCoordinates;
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// Screen layouts and sizes
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ScreenLayout::Layout screenLayout = ScreenLayout::Layout::Default;
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float topScreenSize = 0.5f;
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void reloadScreenLayout(ScreenLayout::Layout newLayout, float newTopScreenSize);
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// Creates a screen widget depending on the graphics API we're using
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static ScreenWidget* getWidget(API api, ResizeCallback resizeCallback, QWidget* parent = nullptr);
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// Called by the emulator thread on OpenGL for resizing the actual GL surface, since the emulator thread owns the GL context
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virtual void resizeSurface(u32 width, u32 height) {};
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protected:
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ResizeCallback resizeCallback;
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virtual bool createContext() = 0;
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virtual void resizeDisplay() = 0;
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std::optional<WindowInfo> getWindowInfo();
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private:
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qreal devicePixelRatioFromScreen() const;
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int scaledWindowWidth() const;
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int scaledWindowHeight() const;
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void reloadScreenCoordinates();
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};
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