mirror of
https://github.com/hyperion-project/hyperion.ng.git
synced 2023-10-10 13:36:59 +02:00
9db45c0ffb
# Conflicts: # include/hyperion/Hyperion.h # libsrc/hyperion/CMakeLists.txt # libsrc/hyperion/Hyperion.cpp Former-commit-id: 1144520581d4531952038d2118cb11e01bebc10e
91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
#include "LedDeviceFadeCandy.h"
|
|
|
|
static const signed MAX_NUM_LEDS = 10000; // OPC can handle 21845 leds - in theory, fadecandy device should handle 10000 leds
|
|
static const unsigned OPC_SET_PIXELS = 0; // OPC command codes
|
|
static const unsigned OPC_HEADER_SIZE = 4; // OPC header size
|
|
|
|
|
|
LedDeviceFadeCandy::LedDeviceFadeCandy(const std::string& host, const uint16_t port, const unsigned channel) :
|
|
_host(host), _port(port), _channel(channel)
|
|
{
|
|
_opc_data.resize( OPC_HEADER_SIZE );
|
|
_opc_data[0] = channel;
|
|
_opc_data[1] = OPC_SET_PIXELS;
|
|
_opc_data[2] = 0;
|
|
_opc_data[3] = 0;
|
|
}
|
|
|
|
|
|
LedDeviceFadeCandy::~LedDeviceFadeCandy()
|
|
{
|
|
_client.close();
|
|
}
|
|
|
|
|
|
bool LedDeviceFadeCandy::isConnected()
|
|
{
|
|
return _client.state() == QAbstractSocket::ConnectedState;
|
|
}
|
|
|
|
|
|
bool LedDeviceFadeCandy::tryConnect()
|
|
{
|
|
if ( _client.state() == QAbstractSocket::UnconnectedState ) {
|
|
_client.connectToHost( _host.c_str(), _port);
|
|
if ( _client.waitForConnected(1000) )
|
|
qDebug("fadecandy/opc: connected to %s:%i on channel %i", _host.c_str(), _port, _channel);
|
|
}
|
|
|
|
return isConnected();
|
|
}
|
|
|
|
|
|
int LedDeviceFadeCandy::write( const std::vector<ColorRgb> & ledValues )
|
|
{
|
|
ssize_t nrLedValues = ledValues.size();
|
|
ssize_t led_data_size = nrLedValues * 3; // 3 color bytes
|
|
ssize_t opc_data_size = led_data_size + OPC_HEADER_SIZE;
|
|
|
|
if (nrLedValues > MAX_NUM_LEDS)
|
|
{
|
|
std::cerr << "fadecandy/opc: Invalid attempt to write led values. Not more than " << MAX_NUM_LEDS << " leds are allowed." << std::endl;
|
|
return -1;
|
|
}
|
|
|
|
if ( opc_data_size != _opc_data.size() )
|
|
_opc_data.resize( opc_data_size );
|
|
|
|
_opc_data[2] = led_data_size >> 8;
|
|
_opc_data[3] = led_data_size & 0xff;
|
|
|
|
uint idx = OPC_HEADER_SIZE;
|
|
for (const ColorRgb& color : ledValues)
|
|
{
|
|
_opc_data[idx ] = unsigned( color.red );
|
|
_opc_data[idx+1] = unsigned( color.green );
|
|
_opc_data[idx+2] = unsigned( color.blue );
|
|
idx += 3;
|
|
}
|
|
|
|
return ( transferData()<0 ? -1 : 0 );
|
|
}
|
|
|
|
|
|
int LedDeviceFadeCandy::transferData()
|
|
{
|
|
if ( isConnected() || tryConnect() )
|
|
return _client.write( _opc_data, _opc_data.size() );
|
|
|
|
return -2;
|
|
}
|
|
|
|
|
|
int LedDeviceFadeCandy::switchOff()
|
|
{
|
|
for ( int idx=OPC_HEADER_SIZE; idx < _opc_data.size(); idx++ )
|
|
_opc_data[idx] = 0;
|
|
|
|
return ( transferData()<0 ? -1 : 0 );
|
|
}
|
|
|