Improve performance of looking up static system properties

app/backend/systemproperties.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include <QObject>
+#include <QRect>
+
+class SystemProperties : public QObject
+{
+    Q_OBJECT
+
+public:
+    SystemProperties();
+
+    Q_PROPERTY(bool hasHardwareAcceleration MEMBER hasHardwareAcceleration CONSTANT)
+    Q_PROPERTY(bool isRunningWayland MEMBER isRunningWayland CONSTANT)
+    Q_PROPERTY(bool isWow64 MEMBER isWow64 CONSTANT)
+    Q_PROPERTY(bool hasBrowser MEMBER hasBrowser CONSTANT)
+    Q_PROPERTY(QString unmappedGamepads MEMBER unmappedGamepads NOTIFY unmappedGamepadsChanged)
+    Q_PROPERTY(int maximumStreamingFrameRate MEMBER maximumStreamingFrameRate CONSTANT)
+
+    Q_INVOKABLE QRect getDesktopResolution(int displayIndex);
+    Q_INVOKABLE QRect getNativeResolution(int displayIndex);
+
+signals:
+    void unmappedGamepadsChanged();
+
+private:
+    void querySdlVideoInfo();
+
+    bool hasHardwareAcceleration;
+    bool isRunningWayland;
+    bool isWow64;
+    bool hasBrowser;
+    QString unmappedGamepads;
+    int maximumStreamingFrameRate;
+    QList<QRect> monitorDesktopResolutions;
+    QList<QRect> monitorNativeResolutions;
+};
+