89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
#include "LedDeviceAdalight.h"
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#include <QtEndian>
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#include <cassert>
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LedDeviceAdalight::LedDeviceAdalight(const QJsonObject &deviceConfig)
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: ProviderRs232(deviceConfig)
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, _headerSize(6)
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, _ligthBerryAPA102Mode(false)
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{
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}
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LedDevice* LedDeviceAdalight::construct(const QJsonObject &deviceConfig)
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{
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return new LedDeviceAdalight(deviceConfig);
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}
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bool LedDeviceAdalight::init(const QJsonObject &deviceConfig)
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{
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bool isInitOK = false;
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// Initialise sub-class
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if ( ProviderRs232::init(deviceConfig) )
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{
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_ligthBerryAPA102Mode = deviceConfig["lightberry_apa102_mode"].toBool(false);
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// create ledBuffer
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unsigned int totalLedCount = _ledCount;
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if (_ligthBerryAPA102Mode)
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{
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const unsigned int startFrameSize = 4;
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const unsigned int bytesPerRGBLed = 4;
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const unsigned int endFrameSize = qMax<unsigned int>(((_ledCount + 15) / 16), bytesPerRGBLed);
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_ledBuffer.resize(_headerSize + (_ledCount * bytesPerRGBLed) + startFrameSize + endFrameSize, 0x00);
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// init constant data values
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for (signed iLed=1; iLed<= static_cast<int>( _ledCount); iLed++)
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{
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_ledBuffer[iLed*4+_headerSize] = 0xFF;
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}
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Debug( _log, "Adalight driver with activated LightBerry APA102 mode");
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}
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else
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{
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totalLedCount -= 1;
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_ledBuffer.resize(_headerSize + _ledRGBCount, 0x00);
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}
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_ledBuffer[0] = 'A';
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_ledBuffer[1] = 'd';
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_ledBuffer[2] = 'a';
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qToBigEndian<quint16>(static_cast<quint16>(totalLedCount), &_ledBuffer[3]);
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_ledBuffer[5] = _ledBuffer[3] ^ _ledBuffer[4] ^ 0x55; // Checksum
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Debug( _log, "Adalight header for %d leds: %c%c%c 0x%02x 0x%02x 0x%02x", _ledCount,
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_ledBuffer[0], _ledBuffer[1], _ledBuffer[2], _ledBuffer[3], _ledBuffer[4], _ledBuffer[5] );
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isInitOK = true;
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}
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return isInitOK;
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}
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int LedDeviceAdalight::write(const std::vector<ColorRgb> & ledValues)
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{
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if(_ligthBerryAPA102Mode)
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{
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for (signed iLed=1; iLed<=static_cast<int>( _ledCount); iLed++)
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{
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const ColorRgb& rgb = ledValues[iLed-1];
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_ledBuffer[iLed*4+7] = rgb.red;
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_ledBuffer[iLed*4+8] = rgb.green;
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_ledBuffer[iLed*4+9] = rgb.blue;
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}
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}
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else
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{
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assert(_headerSize + ledValues.size() * sizeof(ColorRgb) <= _ledBuffer.size());
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memcpy(_headerSize + _ledBuffer.data(), ledValues.data(), ledValues.size() * sizeof(ColorRgb));
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}
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int rc = writeBytes(_ledBuffer.size(), _ledBuffer.data());
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return rc;
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}
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