fbxcolladaiostream.h

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/****************************************************************************************
 
   Copyright (C) 2017 Autodesk, Inc.
   All rights reserved.
 
   Use of this software is subject to the terms of the Autodesk license agreement
   provided at the time of installation or download, or which otherwise accompanies
   this software in either electronic or hard copy form.
 
****************************************************************************************/

#ifndef _FBXSDK_FILEIO_COLLADA_IO_STREAM_H_
#define _FBXSDK_FILEIO_COLLADA_IO_STREAM_H_

#include <fbxsdk.h>

#include <fbxsdk/fbxsdk_nsbegin.h>

//----------------------------------------------------------------------------//

template <typename T> bool FromString(T * pDest, const char * pSourceBegin, const char ** pSourceEnd = NULL);
template <> bool FromString(int * pDest, const char * pSourceBegin, const char ** pSourceEnd);
template <> bool FromString(double * pDest, const char * pSourceBegin, const char ** pSourceEnd);
template <> bool FromString(FbxString * pDest, const char * pSourceBegin, const char ** pSourceEnd);
template <> bool FromString(FbxDouble2 * pDest, const char * pSourceBegin, const char ** pSourceEnd);
template <> bool FromString(FbxDouble3 * pDest, const char * pSourceBegin, const char ** pSourceEnd);
template <> bool FromString(FbxDouble4 * pDest, const char * pSourceBegin, const char ** pSourceEnd);
template <> bool FromString(FbxVector4 * pDest, const char * pSourceBegin, const char ** pSourceEnd);
template <> bool FromString(FbxAMatrix * pDest, const char * pSourceBegin, const char ** pSourceEnd);
template <> bool FromString(FbxAMatrix * pDest, const char * pSourceBegin, const char ** pSourceEnd);



template <typename TYPE> int FromStringToArray(const char * pString, TYPE * pArray, int pArraySize, int pSourceUnitOffset, int pSourceValidUnitCount, int pSourceGroupSize, int pDestUnitOffset, int pDestValidUnitCount, int pDestGroupSize, TYPE pDefaultValue = TYPE())
{
    if (pString == 0 || pArray == 0)
        return 0;

    FBX_ASSERT(pSourceUnitOffset >= 0 && pSourceUnitOffset < pSourceGroupSize);
    FBX_ASSERT(pSourceValidUnitCount >= 0 && pSourceUnitOffset + pSourceValidUnitCount <= pSourceGroupSize);
    FBX_ASSERT(pDestUnitOffset >= 0 && pDestUnitOffset < pDestGroupSize);
    FBX_ASSERT(pDestValidUnitCount >= 0 && pDestUnitOffset + pDestValidUnitCount <= pDestGroupSize);
    const char * lSource = pString;
    TYPE * lDest = pArray;

    int lReadCount = 0;
    int lSourceCounter = 0;
    int lDestCounter = 0;
    const int lSourceUnitValidEnd = pSourceUnitOffset + pSourceValidUnitCount;
    const int lDestUnitGap = pDestGroupSize - pDestValidUnitCount - pDestUnitOffset;

    while (lSource && *lSource)
    {
        TYPE lData;
        const char * lSourceStart = lSource;
        if (FromString(&lData, lSource, &lSource) && lSourceCounter >= pSourceUnitOffset && lSourceCounter < lSourceUnitValidEnd)
        {
            if (lReadCount >= pArraySize)
            {
                // we are trying to write past the allocated buffer
                return 0;
            }

            if (lDestCounter == 0)
            {
                for (int lIndex = 0; lIndex < pDestUnitOffset; ++lIndex)
                    *(lDest++) = pDefaultValue;
            }

            *lDest++ = lData;
            ++lReadCount;
            ++lDestCounter;
            if (lDestCounter == pDestValidUnitCount)
            {
                lDestCounter = 0;
                for (int lIndex = 0; lIndex < lDestUnitGap; ++lIndex)
                    *lDest++ = pDefaultValue;
            }
        }
        else
        {
            // we met a stop condition of FromString. In the normal case, lSource should now be "" or ' '. If not,
            // the converted string is corrupted and we have to break the loop. We can detect this by checking
            // if lSource pointer has moved.
            if (lSource == lSourceStart)
            {
                break;
            }
        }
        ++lSourceCounter;
        if (lSourceCounter == pSourceGroupSize)
            lSourceCounter = 0;
    }
    return lReadCount;
}

//----------------------------------------------------------------------------//

template <typename T>
const FbxString ToString(const T & pValue)
{
    return FbxString(pValue);
}
template <>
const FbxString ToString(const FbxVector4 & pValue);
template <>
const FbxString ToString(const FbxAMatrix & pValue);

//----------------------------------------------------------------------------//

const FbxString DecodePercentEncoding(const FbxString & pEncodedString);

#include <fbxsdk/fbxsdk_nsend.h>

#endif /* _FBXSDK_FILEIO_COLLADA_IO_STREAM_H_ */