Rename 'Standard Gaming Platform' to 'sgp' (#246)

* rename 'Standard Gaming Platform' to 'sgp'

* Adapt CMakeLists.txt files to renamed SGP directory

* Lowercase it

sgp/sgp_auto_memory.h

@@ -0,0 +1,111 @@
+#ifndef _SGP_AUTO_MEMORY_H_
+#define _SGP_AUTO_MEMORY_H_
+
+namespace sgp
+{
+	/************************************************************/
+
+	template<typename T>
+	class TAutoArray
+	{
+	public:
+		T& operator[](size_t index)
+		{
+			return _array[index];
+		}
+
+		T* operator()()
+		{
+			return _array;
+		}
+		T* operator->()
+		{
+			return _array;
+		}
+		T& operator*()
+		{
+			return *_array;
+		}
+		bool operator!()
+		{
+			// NULL == _array
+			return !_array;
+		}
+
+		T* release()
+		{
+			T* tmp = _array;
+			_array = NULL;
+			return tmp;
+		}
+	protected:
+		T* _array;
+	};
+
+	/************************************************************/
+
+	template<typename T>
+	class AutoArray : public TAutoArray<T>
+	{
+	public:
+		AutoArray(size_t size)
+		{
+			_array = new T[size];
+		}
+		~AutoArray()
+		{
+			if(_array)
+			{
+				delete[] _array;
+			}
+		}
+	};
+
+	/************************************************************/
+
+	template<typename T, typename void*(*Alloc)(size_t) = malloc, typename void(*Dealloc)(void*) = free>
+	class AutoCArray : public TAutoArray<T>
+	{
+	public:
+		AutoCArray(size_t size = 1, size_t sizeof_elem=1)
+		{
+			_array = (T*)Alloc( size * sizeof_elem );
+		}
+		~AutoCArray()
+		{
+			if(_array)
+			{
+				Dealloc(_array);
+			}
+		}
+	};
+
+	/************************************************************/
+
+} // namespace sgp
+
+
+#include "MemMan.h"
+
+namespace sgp
+{
+	template<typename T>
+	class AutoMMArray : public sgp::TAutoArray<T>
+	{
+	public:
+		AutoMMArray(size_t size, size_t sizeof_elem=1)
+		{
+			_array = (T*)MemAlloc( size * sizeof_elem );
+		}
+		~AutoMMArray()
+		{
+			if(_array)
+			{
+				MemFree(_array);
+			}
+		}
+	};
+}
+
+
+#endif // _SGP_AUTO_MEMORY_H_