hyperion.ng/libsrc/leddevice/LedDeviceUdpArtNet.h
penfold42 64fc6a9003 Artnet (#440)
* Started implementing artnet/DMX support

It compiles, but certainly wont work just yet

* Fix up packet data and length
correct default udp port

The data looks ok in wireshark

* Code cleanup
Sequence runs from 1..255 not 0
fix universe > 255

* code cleanups and force even number of channels

* Fix potential endianness issue

* added support for 'x' channels per fixture with zero padding
its very basic support for now - it needs better multi universe support
2017-05-26 22:17:12 +02:00

80 lines
2.0 KiB
C++

#pragma once
// hyperion includes
#include "ProviderUdp.h"
#include <QUuid>
/**
*
* This program is provided free for you to use in any way that you wish,
* subject to the laws and regulations where you are using it. Due diligence
* is strongly suggested before using this code. Please give credit where due.
*
**/
#define ArtNet_DEFAULT_PORT 5568
#define DMX_MAX 512 // 512 usable slots
// http://stackoverflow.com/questions/16396013/artnet-packet-structure
typedef union
{
struct {
char ID[8]; // "Art-Net"
uint16_t OpCode; // See Doc. Table 1 - OpCodes eg. 0x5000 OpOutput / OpDmx
uint16_t ProtVer; // 0x0e00 (aka 14)
uint8_t Sequence; // monotonic counter
uint8_t Physical; // 0x00
uint8_t SubUni; // low universe (0-255)
uint8_t Net; // high universe (not used)
uint16_t Length; // data length (2 - 512)
uint8_t Data[ DMX_MAX ]; // universe data
} __attribute__((packed));
uint8_t raw[ 18 + DMX_MAX ];
} artnet_packet_t;
///
/// Implementation of the LedDevice interface for sending led colors via udp/E1.31 packets
///
class LedDeviceUdpArtNet : public ProviderUdp
{
public:
///
/// Constructs specific LedDevice
///
/// @param deviceConfig json device config
///
LedDeviceUdpArtNet(const QJsonObject &deviceConfig);
///
/// Sets configuration
///
/// @param deviceConfig the json device config
/// @return true if success
bool init(const QJsonObject &deviceConfig);
/// constructs leddevice
static LedDevice* construct(const QJsonObject &deviceConfig);
private:
///
/// Writes the led color values to the led-device
///
/// @param ledValues The color-value per led
/// @return Zero on succes else negative
///
virtual int write(const std::vector<ColorRgb> &ledValues);
void prepare(const unsigned this_universe, const unsigned this_sequence, const unsigned this_dmxChannelCount);
artnet_packet_t artnet_packet;
uint8_t _artnet_seq = 1;
uint8_t _artnet_channelsPerFixture = 3;
unsigned _artnet_universe = 1;
};