artnetlistener.h

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
#pragma once
 
// External Includes
#include <cstdint>
#include <nap/numeric.h>
#include <asio/io_service.hpp>
#include <asio/error_code.hpp>
#include <asio/ip/udp.hpp>
 
 
namespace nap
{
    namespace artnet
    {
        inline constexpr const char* protocolID = "Art-Net";    
        inline constexpr uint16 opCode = 0x5000;                
        inline constexpr uint16 minProtVer = 14;                
        inline constexpr uint16 dataLength = 512;               
        inline constexpr uint16 headerLength = 18;              
    }
 
    class ArtNetReceiver;
 
    class ArtNetListener final
    {
    public:
        ArtNetListener(ArtNetReceiver& receiver, asio::io_service& ioService, const std::string& ip, uint16 port);
 
    private:
        void startReceive();
        void handleReceive(const asio::error_code& error, std::size_t size);
 
        // Buffer size is known at compile time
        using ArtNetBuffer = std::array<uint8, artnet::headerLength + artnet::dataLength>;
 
        ArtNetReceiver& mReceiver;          // The Art-Net Receiver that holds the message queue
        asio::ip::udp::socket mSocket;      // The UDP socket that is used to receive data
        ArtNetBuffer mBuffer;               // The buffer used for receiving ArtDmx packets
    };
}