Implement a Wayland Vsync source using frame callbacks

app/streaming/video/ffmpeg-renderers/pacer/waylandvsyncsource.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include "pacer.h"
+
+#include <wayland-client-core.h>
+#include <wayland-client-protocol.h>
+
+class WaylandVsyncSource : public IVsyncSource
+{
+public:
+    WaylandVsyncSource(Pacer* pacer);
+
+    virtual ~WaylandVsyncSource();
+
+    virtual bool initialize(SDL_Window* window, int displayFps);
+
+private:
+    static void frameDone(void* data, struct wl_callback* oldCb, uint32_t time);
+
+    static const struct wl_callback_listener s_FrameListener;
+
+    Pacer* m_Pacer;
+    int m_DisplayFps;
+    wl_display* m_Display;
+    wl_surface* m_Surface;
+    wl_callback* m_Callback;
+    uint32_t m_LastFrameTime;
+};
+