feat: separate wayland implementation

include/window.h

@@ -0,0 +1,52 @@
+#pragma once
+#ifndef H_WINDOW_
+#define H_WINDOW_
+
+#include <cstddef>
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES2/gl2.h>
+
+#define UNUSED(x) (void)(x)
+
+class WindowImpl {
+public:
+	WindowImpl() = default;
+	virtual ~WindowImpl() = default;
+
+	WindowImpl(const WindowImpl&) = delete;
+	WindowImpl(WindowImpl&&) = delete;
+protected:
+	virtual bool Dispatch() = 0;
+
+	virtual size_t GetWidth() const = 0;
+	virtual size_t GetHeight() const = 0;
+
+	friend class Window;
+};
+
+class Window {
+public:
+  Window(size_t width, size_t height);
+  virtual ~Window();
+
+  Window(const Window &) = delete;
+  Window(Window &&) = delete;
+
+public:
+  bool Running() const;
+	size_t GetWidth() const;
+	size_t GetHeight() const;
+
+private:
+	WindowImpl* m_impl;
+
+private: // app logic
+  uint32_t m_last_time;
+  size_t m_width;
+  size_t m_height;
+  bool m_running;
+};
+
+#endif // H_WINDOW_