Squash commits for public release

userland/servers/window_server/src/Devices/Screen.h

@@ -0,0 +1,45 @@
+#pragma once
+#include <libg/Color.h>
+#include <libg/PixelBitmap.h>
+#include <memory>
+
+namespace WinServer {
+
+class Screen {
+public:
+    inline static Screen& the()
+    {
+        extern Screen* s_WinServer_Screen_the;
+        return *s_WinServer_Screen_the;
+    }
+
+    Screen();
+
+    void swap_buffers();
+
+    inline size_t width() { return m_bounds.width(); }
+    inline size_t height() const { return m_bounds.height(); }
+    inline LG::Rect& bounds() { return m_bounds; }
+    inline const LG::Rect& bounds() const { return m_bounds; }
+    inline uint32_t depth() const { return m_depth; }
+
+    inline LG::PixelBitmap& write_bitmap() { return *m_write_bitmap_ptr; }
+    inline const LG::PixelBitmap& write_bitmap() const { return *m_write_bitmap_ptr; }
+    inline LG::PixelBitmap& display_bitmap() { return *m_display_bitmap_ptr; }
+    inline const LG::PixelBitmap& display_bitmap() const { return *m_display_bitmap_ptr; }
+
+private:
+    int m_screen_fd;
+    LG::Rect m_bounds;
+    uint32_t m_depth;
+
+    int m_active_buffer;
+
+    LG::PixelBitmap m_write_bitmap;
+    LG::PixelBitmap m_display_bitmap;
+
+    std::unique_ptr<LG::PixelBitmap> m_write_bitmap_ptr { nullptr };
+    std::unique_ptr<LG::PixelBitmap> m_display_bitmap_ptr { nullptr };
+};
+
+} // namespace WinServer