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

src/turbine/turbine.hpp

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#pragma once
+
+#include <ox/fs/fs.hpp>
+
+#include "clipboard.hpp"
+#include "event.hpp"
+#include "gfx.hpp"
+#include "input.hpp"
+
+namespace turbine {
+
+ox::Result<ox::UniquePtr<Context>> init(ox::UniquePtr<ox::FileSystem> fs, ox::CRStringView appName = "Nostalgia") noexcept;
+
+void shutdown(Context &ctx) noexcept;
+
+ox::Error run(Context &ctx) noexcept;
+
+// Returns the number of milliseconds that have passed since the start of the
+// program.
+[[nodiscard]]
+uint64_t ticksMs(const Context &ctx) noexcept;
+
+void requestShutdown(Context &ctx) noexcept;
+
+}