mirror of
https://github.com/hyperion-project/hyperion.ng.git
synced 2023-10-10 13:36:59 +02:00
c13f2e20ec
source defaults to "hyperion on <hostname>"
cid defautls to randomly generated on each startup
"device" :
{
"name" : "DMX_e131",
"type" : "e131",
"universe" : 1,
"cid" : "{204b83c-efb5-4b23-b2d0-35939d561061}",
"source-name": "This is my custom e1.31 source",
"host" : "239.255.0.1",
"port" : 5568,
"colorOrder" : "rgb"
},
136 lines
4.0 KiB
C++
136 lines
4.0 KiB
C++
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// STL includes
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#include <cstring>
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#include <cstdio>
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#include <iostream>
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// Linux includes
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <arpa/inet.h>
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#include <QHostInfo>
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#include <QUuid>
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// hyperion local includes
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#include "LedDeviceUdpE131.h"
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LedDeviceUdpE131::LedDeviceUdpE131(const Json::Value &deviceConfig)
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: ProviderUdp(deviceConfig)
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{
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setConfig(deviceConfig);
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}
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bool LedDeviceUdpE131::setConfig(const Json::Value &deviceConfig)
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{
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ProviderUdp::setConfig(deviceConfig);
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_LatchTime_ns = deviceConfig.get("latchtime",104000).asInt();
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_e131_universe = deviceConfig.get("universe",1).asInt();
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_e131_source_name = deviceConfig.get("source-name","hyperion on "+QHostInfo::localHostName().toStdString()).asString();
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QString _json_cid = QString::fromStdString(deviceConfig.get("cid","").asString());
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if (_json_cid.isEmpty())
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{
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_e131_cid = QUuid::createUuid();
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Debug( _log, "e131 no cid found, generated %s", _e131_cid.toString().toStdString().c_str());
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} else {
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_e131_cid = QUuid(_json_cid);
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Debug( _log, "e131 cid found, using %s", _e131_cid.toString().toStdString().c_str());
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}
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return true;
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}
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LedDevice* LedDeviceUdpE131::construct(const Json::Value &deviceConfig)
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{
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return new LedDeviceUdpE131(deviceConfig);
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}
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// populates the headers
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void LedDeviceUdpE131::prepare(const unsigned this_universe, const unsigned this_dmxChannelCount)
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{
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memset(e131_packet.raw, 0, sizeof(e131_packet.raw));
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/* Root Layer */
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e131_packet.preamble_size = htons(16);
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e131_packet.postamble_size = 0;
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memcpy (e131_packet.acn_id, _acn_id, 12);
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e131_packet.root_flength = htons(0x7000 | (110+this_dmxChannelCount) );
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e131_packet.root_vector = htonl(VECTOR_ROOT_E131_DATA);
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memcpy (e131_packet.cid, _e131_cid.toRfc4122().constData() , sizeof(e131_packet.cid) );
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/* Frame Layer */
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e131_packet.frame_flength = htons(0x7000 | (88+this_dmxChannelCount));
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e131_packet.frame_vector = htonl(VECTOR_E131_DATA_PACKET);
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snprintf (e131_packet.source_name, sizeof(e131_packet.source_name), "%s", _e131_source_name.c_str() );
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e131_packet.priority = 100;
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e131_packet.reserved = htons(0);
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e131_packet.options = 0; // Bit 7 = Preview_Data
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// Bit 6 = Stream_Terminated
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// Bit 5 = Force_Synchronization
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e131_packet.universe = htons(this_universe);
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/* DMX Layer */
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e131_packet.dmp_flength = htons(0x7000 | (11+this_dmxChannelCount));
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e131_packet.dmp_vector = VECTOR_DMP_SET_PROPERTY;
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e131_packet.type = 0xa1;
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e131_packet.first_address = htons(0);
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e131_packet.address_increment = htons(1);
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e131_packet.property_value_count = htons(1+this_dmxChannelCount);
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e131_packet.property_values[0] = 0; // start code
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}
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int LedDeviceUdpE131::write(const std::vector<ColorRgb> &ledValues)
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{
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int retVal = 0;
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int _thisChannelCount = 0;
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_e131_seq++;
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const uint8_t * rawdata = reinterpret_cast<const uint8_t *>(ledValues.data());
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_ledCount = ledValues.size();
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int _dmxChannelCount = 3 * _ledCount;
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for (int rawIdx = 0; rawIdx < _dmxChannelCount; rawIdx++)
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{
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if (rawIdx % DMX_MAX == 0) // start of new packet
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{
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_thisChannelCount = (_dmxChannelCount - rawIdx < DMX_MAX) ? _dmxChannelCount % DMX_MAX : DMX_MAX;
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// is this the last packet? ? ^^ last packet : ^^ earlier packets
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prepare(_e131_universe + rawIdx / DMX_MAX, _thisChannelCount);
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e131_packet.sequence_number = _e131_seq;
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}
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e131_packet.property_values[1 + rawIdx%DMX_MAX] = rawdata[rawIdx];
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// is this the last byte of last packet || last byte of other packets
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if ( (rawIdx == _dmxChannelCount-1) || (rawIdx %DMX_MAX == DMX_MAX-1) )
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{
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#undef e131debug
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#if e131debug
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printf ( "send packet: rawidx %d dmxchannelcount %d universe: %d, packetsz %d\n"
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, rawIdx
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, _dmxChannelCount
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, _e131_universe + rawIdx / DMX_MAX
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, E131_DMP_DATA + 1 + _thisChannelCount
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);
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#endif
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retVal &= writeBytes(E131_DMP_DATA + 1 + _thisChannelCount, e131_packet.raw);
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}
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}
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return retVal;
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}
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int LedDeviceUdpE131::switchOff()
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{
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return write(std::vector<ColorRgb>(_ledCount, ColorRgb{0,0,0}));
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}
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