yuzu: Hook qt camera to camera driver

src/yuzu/configuration/configure_camera.h

@@ -0,0 +1,52 @@
+// Text : Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <memory>
+#include <QDialog>
+
+class QTimer;
+class QCamera;
+class QCameraImageCapture;
+
+namespace InputCommon {
+class InputSubsystem;
+} // namespace InputCommon
+
+namespace Ui {
+class ConfigureCamera;
+}
+
+class ConfigureCamera : public QDialog {
+    Q_OBJECT
+
+public:
+    explicit ConfigureCamera(QWidget* parent, InputCommon::InputSubsystem* input_subsystem_);
+    ~ConfigureCamera() override;
+
+    void ApplyConfiguration();
+
+private:
+    void changeEvent(QEvent* event) override;
+    void RetranslateUI();
+
+    /// Load configuration settings.
+    void LoadConfiguration();
+
+    /// Restore all buttons to their default values.
+    void RestoreDefaults();
+
+    void DisplayCapturedFrame(int requestId, const QImage& img);
+
+    /// Loads and signals the current selected camera to display a frame
+    void PreviewCamera();
+
+    InputCommon::InputSubsystem* input_subsystem;
+
+    std::unique_ptr<QCamera> camera;
+    std::unique_ptr<QCameraImageCapture> camera_capture;
+    std::unique_ptr<QTimer> camera_timer;
+    std::vector<std::string> input_devices;
+    std::unique_ptr<Ui::ConfigureCamera> ui;
+};