feat: initial video wallpaper implementation

Plugins/ZShell/Internal/wallpapersurface.hpp

@@ -3,6 +3,8 @@
 #include <EGL/egl.h>
 #include <wayland-egl.h>
 
+#include <atomic>
+
 #include <QSize>
 #include <QString>
 
@@ -32,7 +34,14 @@ class WallpaperSurface : public QtWayland::zwlr_layer_surface_v1,
 	[[nodiscard]] const QSize& bufferSize() const { return m_bufferSize; }
 	[[nodiscard]] EGLSurface eglSurface() const { return m_eglSurface; }
 
-	void redraw();
+	void markDirty();
+	[[nodiscard]] bool needsDraw() const;
+
+	[[nodiscard]] bool frameReady() const;
+
+	void requestFrame();
+
+	void endDraw();
 
 	private:
 	void zwlr_layer_surface_v1_configure(
@@ -42,6 +51,8 @@ class WallpaperSurface : public QtWayland::zwlr_layer_surface_v1,
 
 	void updateBuffer();
 
+	void onFrameDone();
+
 	WallpaperService* m_service;
 	QString m_screen;
 	wl_surface* m_surface;
@@ -53,6 +64,10 @@ class WallpaperSurface : public QtWayland::zwlr_layer_surface_v1,
 	qreal m_scale = 1.0;
 
 	bool configured = false;
+
+	std::atomic<bool> m_dirty{false};
+	std::atomic<bool> m_frameReady{true};
+	struct wl_callback* m_frameCallback = nullptr;
 };
 
 } // namespace ZShell::internal