[nostalgia] Break part of core out into Turbine and TeaGBA libraries

src/turbine/gfx.hpp

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#pragma once
+
+#include <ox/std/array.hpp>
+#include <ox/std/point.hpp>
+#include <ox/std/size.hpp>
+#include <ox/std/types.hpp>
+#include <ox/model/def.hpp>
+
+#include "context.hpp"
+
+namespace turbine {
+
+namespace gl {
+class Drawer {
+	public:
+		virtual ~Drawer() = default;
+		virtual void draw(Context&) noexcept = 0;
+};
+void addDrawer(Context &ctx, Drawer *cd) noexcept;
+void removeDrawer(Context &ctx, Drawer *cd) noexcept;
+}
+
+ox::Error initGfx(Context &ctx) noexcept;
+
+void setWindowTitle(Context &ctx, ox::CRStringView title) noexcept;
+
+void focusWindow(Context &ctx) noexcept;
+
+[[nodiscard]]
+int getScreenWidth(Context &ctx) noexcept;
+
+[[nodiscard]]
+int getScreenHeight(Context &ctx) noexcept;
+
+[[nodiscard]]
+ox::Size getScreenSize(Context &ctx) noexcept;
+
+}