XnDataTypes.h

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/*****************************************************************************
*                                                                            *
*  OpenNI 1.0 Alpha                                                          *
*  Copyright (C) 2010 PrimeSense Ltd.                                        *
*                                                                            *
*  This file is part of OpenNI.                                              *
*                                                                            *
*  OpenNI is free software: you can redistribute it and/or modify            *
*  it under the terms of the GNU Lesser General Public License as published  *
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*  (at your option) any later version.                                       *
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*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the              *
*  GNU Lesser General Public License for more details.                       *
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*  You should have received a copy of the GNU Lesser General Public License  *
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*****************************************************************************/




#ifndef _XN_DATA_TYPES_H_
#define _XN_DATA_TYPES_H_

//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "XnOS.h"

//---------------------------------------------------------------------------
// Types
//---------------------------------------------------------------------------
typedef void* XnValue;

#define XN_DECLARE_DEFAULT_VALUE_TRANSLATOR_DECL(decl, Type, ClassName) \
        class decl ClassName                                                                                            \
        {                                                                                                                                       \
        public:                                                                                                                         \
                static XnValue CreateValueCopy(Type const& orig)                                \
                {                                                                                                                               \
                        if (sizeof(Type) > sizeof(XnValue))                                                     \
                        {                                                                                                                       \
                                Type* pNew = XN_NEW(Type, orig);                                                \
                                return (XnValue)pNew;                                                                   \
                        }                                                                                                                       \
                        else                                                                                                            \
                        {                                                                                                                       \
                                XnValue result = 0;                                                                             \
                                xnOSMemCopy(&result, &orig, sizeof(Type));                              \
                                return result;                                                                                  \
                        }                                                                                                                       \
                }                                                                                                                               \
                static void FreeValue(XnValue& Value)                                                   \
                {                                                                                                                               \
                                if (sizeof(Type) > sizeof(XnValue))                                             \
                                {                                                                                                               \
                                        Type* p = (Type*)Value;                                                         \
                                        XN_DELETE(p);                                                                           \
                                }                                                                                                               \
                }                                                                                                                               \
                static XnValue GetAsValue(Type const& orig)                                             \
                {                                                                                                                               \
                        if (sizeof(Type) > sizeof(XnValue))                                                     \
                        {                                                                                                                       \
                                return (XnValue)&orig;                                                                  \
                        }                                                                                                                       \
                        else                                                                                                            \
                        {                                                                                                                       \
                                XnValue result = 0;                                                                             \
                                xnOSMemCopy(&result, &orig, sizeof(Type));                              \
                                return result;                                                                                  \
                        }                                                                                                                       \
                }                                                                                                                               \
                static Type const& GetFromValue(const XnValue& Value)                   \
                {                                                                                                                               \
                        if (sizeof(Type) > sizeof(XnValue))                                                     \
                        {                                                                                                                       \
                                Type const* p = (Type const*)Value;                                             \
                                return *p;                                                                                              \
                        }                                                                                                                       \
                        else                                                                                                            \
                        {                                                                                                                       \
                                Type const* p = (Type const*)&Value;                                    \
                                return *p;                                                                                              \
                        }                                                                                                                       \
                }                                                                                                                               \
                static Type& GetFromValue(XnValue& Value)                                               \
                {                                                                                                                               \
                        if (sizeof(Type) > sizeof(XnValue))                                                     \
                        {                                                                                                                       \
                                Type* p = (Type*)Value;                                                                 \
                                return *p;                                                                                              \
                        }                                                                                                                       \
                        else                                                                                                            \
                        {                                                                                                                       \
                                Type* p = (Type*)&Value;                                                                \
                                return *p;                                                                                              \
                        }                                                                                                                       \
                }                                                                                                                               \
        };

#define XN_DECLARE_DEFAULT_VALUE_TRANSLATOR(Type, ClassName)    \
        XN_DECLARE_DEFAULT_VALUE_TRANSLATOR_DECL(, Type, ClassName)

#define XN_DEFAULT_TRANSLATOR_NAME(ClassName)   ClassName ## Translator

#endif // _XN_DATA_TYPES_H_