148 lines
4.0 KiB
C++
148 lines
4.0 KiB
C++
#include "LedDeviceFadeCandy.h"
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static const signed MAX_NUM_LEDS = 10000; // OPC can handle 21845 leds - in theory, fadecandy device should handle 10000 leds
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static const unsigned OPC_SET_PIXELS = 0; // OPC command codes
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static const unsigned OPC_SYS_EX = 255; // OPC command codes
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static const unsigned OPC_HEADER_SIZE = 4; // OPC header size
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LedDeviceFadeCandy::LedDeviceFadeCandy(const QJsonObject &deviceConfig)
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: LedDevice()
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{
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_deviceReady = init(deviceConfig);
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}
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LedDeviceFadeCandy::~LedDeviceFadeCandy()
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{
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_client.close();
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}
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LedDevice* LedDeviceFadeCandy::construct(const QJsonObject &deviceConfig)
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{
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return new LedDeviceFadeCandy(deviceConfig);
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}
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bool LedDeviceFadeCandy::init(const QJsonObject &deviceConfig)
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{
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_client.close();
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if (_ledCount > MAX_NUM_LEDS)
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{
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Error(_log, "fadecandy/opc: Invalid attempt to write led values. Not more than %d leds are allowed.", MAX_NUM_LEDS);
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return false;
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}
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_host = deviceConfig["output"].toString("127.0.0.1").toStdString();
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_port = deviceConfig["port"].toInt(7890);
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_channel = deviceConfig["channel"].toInt(0);
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_gamma = deviceConfig["gamma"].toDouble(1.0);
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_noDither = ! deviceConfig["dither"].toBool(false);
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_noInterp = ! deviceConfig["interpolation"].toBool(false);
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_manualLED = deviceConfig["manualLed"].toBool(false);
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_ledOnOff = deviceConfig["ledOn"].toBool(false);
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_setFcConfig = deviceConfig["setFcConfig"].toBool(false);
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_whitePoint_r = 1.0;
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_whitePoint_g = 1.0;
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_whitePoint_b = 1.0;
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const QJsonArray whitePointConfig = deviceConfig["whitePoint"].toArray();
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if ( !whitePointConfig.isEmpty() && whitePointConfig.size() == 3 )
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{
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_whitePoint_r = whitePointConfig[0].toDouble();
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_whitePoint_g = whitePointConfig[1].toDouble();
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_whitePoint_b = whitePointConfig[2].toDouble();
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}
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_opc_data.resize( _ledRGBCount + OPC_HEADER_SIZE );
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_opc_data[0] = _channel;
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_opc_data[1] = OPC_SET_PIXELS;
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_opc_data[2] = _ledRGBCount >> 8;
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_opc_data[3] = _ledRGBCount & 0xff;
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return true;
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}
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bool LedDeviceFadeCandy::isConnected()
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{
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return _client.state() == QAbstractSocket::ConnectedState;
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}
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bool LedDeviceFadeCandy::tryConnect()
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{
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if ( _client.state() == QAbstractSocket::UnconnectedState ) {
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_client.connectToHost( _host.c_str(), _port);
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if ( _client.waitForConnected(1000) )
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{
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Info(_log,"fadecandy/opc: connected to %s:%i on channel %i", _host.c_str(), _port, _channel);
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if (_setFcConfig)
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{
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sendFadeCandyConfiguration();
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}
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}
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}
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return isConnected();
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}
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int LedDeviceFadeCandy::write( const std::vector<ColorRgb> & ledValues )
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{
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uint idx = OPC_HEADER_SIZE;
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for (const ColorRgb& color : ledValues)
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{
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_opc_data[idx ] = unsigned( color.red );
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_opc_data[idx+1] = unsigned( color.green );
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_opc_data[idx+2] = unsigned( color.blue );
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idx += 3;
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}
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return ( transferData()<0 ? -1 : 0 );
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}
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int LedDeviceFadeCandy::transferData()
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{
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if ( isConnected() || tryConnect() )
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return _client.write( _opc_data, _opc_data.size() );
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return -2;
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}
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int LedDeviceFadeCandy::sendSysEx(uint8_t systemId, uint8_t commandId, QByteArray msg)
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{
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if ( isConnected() )
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{
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QByteArray sysExData;
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ssize_t data_size = msg.size() + 4;
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sysExData.resize( 4 + OPC_HEADER_SIZE );
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sysExData[0] = 0;
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sysExData[1] = OPC_SYS_EX;
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sysExData[2] = data_size >>8;
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sysExData[3] = data_size &0xff;
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sysExData[4] = systemId >>8;
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sysExData[5] = systemId &0xff;
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sysExData[6] = commandId >>8;
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sysExData[7] = commandId &0xff;
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sysExData += msg;
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return _client.write( sysExData, sysExData.size() );
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}
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return -1;
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}
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void LedDeviceFadeCandy::sendFadeCandyConfiguration()
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{
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Debug(_log, "send configuration to fadecandy");
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QString data = "{\"gamma\": "+QString::number(_gamma,'g',4)+", \"whitepoint\": ["+QString::number(_whitePoint_r,'g',4)+", "+QString::number(_whitePoint_g,'g',4)+", "+QString::number(_whitePoint_b,'g',4)+"]}";
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sendSysEx(1, 1, data.toLocal8Bit() );
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char firmware_data = ((uint8_t)_noDither | ((uint8_t)_noInterp << 1) | ((uint8_t)_manualLED << 2) | ((uint8_t)_ledOnOff << 3) );
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sendSysEx(1, 2, QByteArray(1,firmware_data) );
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}
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