How to convert int[] to byte[]

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花落未央 2020-11-27 04:39

I have an array of integers which represent a RGB image and would like to convert it to a byte array and save it to a file.

What\'s the best way to convert an array

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醉话见心 (楼主)

2020-11-27 05:01

I created this code and it's working pretty well:

    int IntToByte(byte arrayDst[], int arrayOrg[], int maxOrg){
        int i;
        int idxDst;
        int maxDst;
        //
        maxDst = maxOrg*4;
        //
        if (arrayDst==null)
            return 0;
        if (arrayOrg==null)
            return 0;
        if (arrayDst.length < maxDst)
            return 0;
        if (arrayOrg.length < maxOrg)
            return 0;
        //
        idxDst = 0;
        for (i=0; i> 8);
            idxDst++;
            arrayDst[idxDst] = (byte)(arrayOrg[i] >> 16);
            idxDst++;
            arrayDst[idxDst] = (byte)(arrayOrg[i] >> 24);
            idxDst++;
        }
        //
        return idxDst;
    }

    int ByteToInt(int arrayDst[], byte arrayOrg[], int maxOrg){
        int i;
        int v;
        int idxOrg;
        int maxDst;
        //
        maxDst = maxOrg/4;
        //
        if (arrayDst==null)
            return 0;
        if (arrayOrg==null)
            return 0;
        if (arrayDst.length < maxDst)
            return 0;
        if (arrayOrg.length < maxOrg)
            return 0;
        //
        idxOrg = 0;
        for (i=0; i