hyperion.ng/libsrc/leddevice/dev_serial/LedDeviceAdalight.cpp
2020-08-08 00:21:19 +02:00

88 lines
2.3 KiB
C++

#include "LedDeviceAdalight.h"
#include <cassert>
LedDeviceAdalight::LedDeviceAdalight(const QJsonObject &deviceConfig)
: ProviderRs232(deviceConfig)
, _headerSize(6)
, _ligthBerryAPA102Mode(false)
{
}
LedDevice* LedDeviceAdalight::construct(const QJsonObject &deviceConfig)
{
return new LedDeviceAdalight(deviceConfig);
}
bool LedDeviceAdalight::init(const QJsonObject &deviceConfig)
{
bool isInitOK = false;
// Initialise sub-class
if ( ProviderRs232::init(deviceConfig) )
{
_ligthBerryAPA102Mode = deviceConfig["lightberry_apa102_mode"].toBool(false);
// create ledBuffer
unsigned int totalLedCount = _ledCount;
if (_ligthBerryAPA102Mode)
{
const unsigned int startFrameSize = 4;
const unsigned int bytesPerRGBLed = 4;
const unsigned int endFrameSize = qMax<unsigned int>(((_ledCount + 15) / 16), bytesPerRGBLed);
_ledBuffer.resize(_headerSize + (_ledCount * bytesPerRGBLed) + startFrameSize + endFrameSize, 0x00);
// init constant data values
for (signed iLed=1; iLed<= static_cast<int>( _ledCount); iLed++)
{
_ledBuffer[iLed*4+_headerSize] = 0xFF;
}
Debug( _log, "Adalight driver with activated LightBerry APA102 mode");
}
else
{
totalLedCount -= 1;
_ledBuffer.resize(_headerSize + _ledRGBCount, 0x00);
}
_ledBuffer[0] = 'A';
_ledBuffer[1] = 'd';
_ledBuffer[2] = 'a';
_ledBuffer[3] = (totalLedCount >> 8) & 0xFF; // LED count high byte
_ledBuffer[4] = totalLedCount & 0xFF; // LED count low byte
_ledBuffer[5] = _ledBuffer[3] ^ _ledBuffer[4] ^ 0x55; // Checksum
Debug( _log, "Adalight header for %d leds: %c%c%c 0x%02x 0x%02x 0x%02x", _ledCount,
_ledBuffer[0], _ledBuffer[1], _ledBuffer[2], _ledBuffer[3], _ledBuffer[4], _ledBuffer[5] );
isInitOK = true;
}
return isInitOK;
}
int LedDeviceAdalight::write(const std::vector<ColorRgb> & ledValues)
{
if(_ligthBerryAPA102Mode)
{
for (signed iLed=1; iLed<=static_cast<int>( _ledCount); iLed++)
{
const ColorRgb& rgb = ledValues[iLed-1];
_ledBuffer[iLed*4+7] = rgb.red;
_ledBuffer[iLed*4+8] = rgb.green;
_ledBuffer[iLed*4+9] = rgb.blue;
}
}
else
{
assert(_headerSize + ledValues.size() * sizeof(ColorRgb) <= _ledBuffer.size());
memcpy(_headerSize + _ledBuffer.data(), ledValues.data(), ledValues.size() * sizeof(ColorRgb));
}
int rc = writeBytes(_ledBuffer.size(), _ledBuffer.data());
return rc;
}