various implementation

Runtime/RetroTypes.hpp

@@ -0,0 +1,51 @@
+#ifndef __RETRO_TYPES_HPP__
+#define __RETRO_TYPES_HPP__
+
+#include <utility>
+#include "GCNTypes.hpp"
+
+namespace Retro
+{
+
+/**
+ * @brief singleton static-allocator
+ */
+template<class T>
+class TOneStatic
+{
+    static u8 m_allocspace[sizeof(T)];
+    static u32 m_refCount;
+public:
+    static T* GetAllocSpace() {return (T*)m_allocspace;}
+    static u32& ReferenceCount() {return m_refCount;}
+    T* operator->() const {return (T*)m_allocspace;}
+    T& operator*() const {return *(T*)m_allocspace;}
+
+    void* operator new(size_t) = delete;
+    void operator delete(void*) = delete;
+
+    template<typename U = T>
+    TOneStatic(typename std::enable_if<!std::is_default_constructible<U>::value>::type* = 0)
+    {++ReferenceCount();}
+    template<typename U = T>
+    TOneStatic(typename std::enable_if<std::is_default_constructible<U>::value>::type* = 0)
+    {++ReferenceCount(); new (m_allocspace) T();}
+
+    template<typename... Args> TOneStatic(Args&&... args)
+    {++ReferenceCount(); new (m_allocspace) T(std::forward<Args>(args)...);}
+
+    ~TOneStatic() {--ReferenceCount();}
+
+    template<typename... Args> void reset(Args&&... args)
+    {new (m_allocspace) T(std::forward<Args>(args)...);}
+};
+template<class T> u8 TOneStatic<T>::m_allocspace[sizeof(T)];
+template<class T> u32 TOneStatic<T>::m_refCount;
+
+using TUniqueId = s16;
+using TEditorId = u32;
+using TAreaId = u32;
+
+}
+
+#endif // __RETRO_TYPES_HPP__