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include/platform/memory/endian.h

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+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+----------------------------------------------------------------------------- */
+
+
+#ifndef	__NENDIAN__
+#define	__NENDIAN__
+
+
+		#include "ntypes.h"
+
+
+namespace GS {
+	namespace Endian {
+
+enum Config
+{
+	Undefined       =   0,
+
+	Big,
+	Little,
+
+	Motorola		= Big,
+	Intel			= Little
+};
+
+/// Swap bytes in memory.
+void		SwapBytes(void *, size_t);
+
+/// Return the current host memory configuration.
+Config		GetHostConfiguration();
+
+/// Convert a memory block to the host configuration.
+void		*ToHost(void *, size_t, Config = Big);
+
+/// Convert a value to the host configuration.
+template <class T> T ToHost(const T &v, Config cfg = Big)
+{
+	if	(GetHostConfiguration() == cfg)
+		return v;
+
+	T host_value = v;
+	SwapBytes(&host_value, sizeof(T));
+	return host_value;	
+}
+
+	} // Endian
+} // GS
+
+
+#endif	//__NENDIAN__