Method decodeRunLengthSingle

src/OpenLoco/src/S5/SawyerStream.cpp:128–157

}

void SawyerStreamReader::decodeRunLengthSingle(MemoryStream& buffer, std::span<const std::byte> data)
{
    for (size_t i = 0; i < data.size(); i++)
    {
        uint8_t rleCodeByte = static_cast<uint8_t>(data[i]);
        if (rleCodeByte & 128)
        {
            i++;
            if (i >= data.size())
            {
                throw Exception::RuntimeError(exceptionInvalidRLE);
            }

            auto copyLen = static_cast<size_t>(257 - rleCodeByte);
            auto copyByte = data[i];
            fillStream(buffer, copyByte, copyLen);
        }
        else
        {
            if (i + 1 >= data.size() || i + 1 + rleCodeByte + 1 > data.size())
            {
                throw Exception::RuntimeError(exceptionInvalidRLE);
            }

            auto copyLen = static_cast<size_t>(rleCodeByte + 1);
            buffer.write(&data[i + 1], copyLen);
            i += rleCodeByte + 1;
        }
    }
}

void SawyerStreamReader::decodeRunLengthMulti(MemoryStream& buffer, std::span<const std::byte> data)
{