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diff --git a/src/citra_qt/bootmanager.hxx b/src/citra_qt/bootmanager.hxx
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+#include <QThread>
+#include <QGLWidget>
+#include "common.h"
+#include "emu_window.h"
+
+class GRenderWindow;
+class QKeyEvent;
+
+class EmuThread : public QThread
+{
+ Q_OBJECT
+
+public:
+ /**
+ * Set image filename
+ *
+ * @param filename
+ * @warning Only call when not running!
+ */
+ void SetFilename(const char* filename);
+
+ /**
+ * Start emulation (on new thread)
+ *
+ * @warning Only call when not running!
+ */
+ void run();
+
+ /**
+ * Allow the CPU to process a single instruction (if cpu is not running)
+ *
+ * @note This function is thread-safe
+ */
+ void ExecStep() { exec_cpu_step = true; }
+
+ /**
+ * Allow the CPU to continue processing instructions without interruption
+ *
+ * @note This function is thread-safe
+ */
+ void SetCpuRunning(bool running) { cpu_running = running; }
+
+ /**
+ * Allow the CPU to continue processing instructions without interruption
+ *
+ * @note This function is thread-safe
+ */
+ bool IsCpuRunning() { return cpu_running; }
+
+
+public slots:
+ /**
+ * Stop emulation and wait for the thread to finish.
+ *
+ * @details: This function will wait a second for the thread to finish; if it hasn't finished until then, we'll terminate() it and wait another second, hoping that it will be terminated by then.
+ * @note: This function is thread-safe.
+ */
+ void Stop();
+
+private:
+ friend class GRenderWindow;
+
+ EmuThread(GRenderWindow* render_window);
+
+ char filename[MAX_PATH];
+
+ bool exec_cpu_step;
+ bool cpu_running;
+
+ GRenderWindow* render_window;
+
+signals:
+ /**
+ * Emitted when CPU when we've finished processing a single Gekko instruction
+ *
+ * @warning This will only be emitted when the CPU is not running (SetCpuRunning(false))
+ * @warning When connecting to this signal from other threads, make sure to specify either Qt::QueuedConnection (invoke slot within the destination object's message thread) or even Qt::BlockingQueuedConnection (additionally block source thread until slot returns)
+ */
+ void CPUStepped();
+};
+
+class GRenderWindow : public QWidget, public EmuWindow
+{
+public:
+ GRenderWindow(QWidget* parent = NULL);
+ ~GRenderWindow();
+
+ void closeEvent(QCloseEvent*);
+
+ // EmuWindow implementation
+ void SwapBuffers();
+ void MakeCurrent();
+ void DoneCurrent();
+ void PollEvents();
+
+ void BackupGeometry();
+ void RestoreGeometry();
+ void restoreGeometry(const QByteArray& geometry); // overridden
+ QByteArray saveGeometry(); // overridden
+
+ EmuThread& GetEmuThread();
+
+ void keyPressEvent(QKeyEvent* event);
+ void keyReleaseEvent(QKeyEvent* event);
+
+private:
+ QGLWidget* child;
+
+ EmuThread emu_thread;
+
+ QByteArray geometry;
+};