wayland: Move wayland files into common folder

src/common/wayland/x11_window.h

@@ -0,0 +1,55 @@
+#pragma once
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include "duckstation_compat.h"
+
+namespace GL {
+using namespace citra;
+class X11Window {
+public:
+    X11Window();
+    ~X11Window();
+
+    ALWAYS_INLINE Window GetWindow() const {
+        return m_window;
+    }
+    ALWAYS_INLINE u32 GetWidth() const {
+        return m_width;
+    }
+    ALWAYS_INLINE u32 GetHeight() const {
+        return m_height;
+    }
+
+    bool Create(Display* display, Window parent_window, const XVisualInfo* vi);
+    void Destroy();
+
+    // Setting a width/height of 0 will use parent dimensions.
+    void Resize(u32 width = 0, u32 height = 0);
+
+private:
+    Display* m_display = nullptr;
+    Window m_parent_window = {};
+    Window m_window = {};
+    Colormap m_colormap = {};
+    u32 m_width = 0;
+    u32 m_height = 0;
+};
+
+// Helper class for managing X errors
+class X11InhibitErrors {
+public:
+    X11InhibitErrors();
+    ~X11InhibitErrors();
+
+    ALWAYS_INLINE bool HadError() const {
+        return m_had_error;
+    }
+
+private:
+    static int ErrorHandler(Display* display, XErrorEvent* ee);
+
+    XErrorHandler m_old_handler = {};
+    bool m_had_error = false;
+};
+
+} // namespace GL