Function zlibCompressBound

src/openrct2/core/Compression.cpp:34–37

* Modified copy of compressBound() from zlib 1.3.1, with the argument type changed from ULong * (which may be only 32 bits) to uint64_t, and adds space for the default gzip header, */

     * (which may be only 32 bits) to uint64_t, and adds space for the default gzip header,
     */
    static uint64_t zlibCompressBound(uint64_t length)
    {
        return length + (length >> 12) + (length >> 14) + (length >> 25) + 13uLL + (18uLL - 6uLL);
    }

    bool zlibCompress(IStream& source, uint64_t sourceLength, IStream& dest, ZlibHeaderType header, int16_t level)
    {