mirror of
https://github.com/hyperion-project/hyperion.ng.git
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7f5a664864
tune debug output of fadecandy device Former-commit-id: 651459e5294ce5721ebe3bb2a6acdc1d096d9cfb
88 lines
2.1 KiB
C++
Executable File
88 lines
2.1 KiB
C++
Executable File
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// Local-Hyperion includes
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#include "LedDeviceFadeCandy.h"
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#include <QHostAddress>
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#include <QString>
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#include <sstream>
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static const unsigned MAX_NUM_LEDS = 512;
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/* OPC broadcast channel */
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static const unsigned OPC_BROADCAST = 0;
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/* OPC command codes */
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static const unsigned OPC_SET_PIXELS = 0;
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LedDeviceFadeCandy::LedDeviceFadeCandy(const std::string& host, const uint16_t port)
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: _host(host), _port(port)
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{
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_opc_data.resize(4);
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_opc_data[0] = OPC_BROADCAST;
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_opc_data[1] = OPC_SET_PIXELS;
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_opc_data[2] = 0;
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_opc_data[3] = 0;
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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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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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qDebug("connecting to %s %i",_host.c_str(),_port);
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QHostAddress addr(_host.c_str());
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_client.connectToHost(addr, _port);
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if (_client.waitForConnected(1000))
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qDebug("connected");
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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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ssize_t nrLedValues = ledValues.size();
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ssize_t led_data_size = nrLedValues*3; // 3 color bytes
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ssize_t opc_data_size = led_data_size +4; // + 4 byte header
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if (nrLedValues > MAX_NUM_LEDS)
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{
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std::cerr << "Invalid attempt to write led values. Not more than " << MAX_NUM_LEDS << " leds are allowed." << std::endl;
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return -1;
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}
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if ( opc_data_size != _opc_data.size())
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_opc_data.resize(opc_data_size);
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_opc_data[2] = led_data_size >> 8;
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_opc_data[3] = led_data_size & 0xff;
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if ( isConnected() || tryConnect() ) {
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u_int16_t idx = 4;
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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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_client.write(_opc_data, opc_data_size);
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}
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return 0;
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}
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int LedDeviceFadeCandy::switchOff()
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{
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return 0;
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}
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