hyperion.ng/libsrc/leddevice/LedDeviceAPA102.cpp
penfold42 cc8185691a Renamed the lowlevel providers from LedXXXDevice to ProviderXXX (#206)
%s/LedUdpDevice/ProviderUdp/g
git mv LedUdpDevice.cpp ProviderUdp.cpp
git mv LedUdpDevice.h ProviderUdp.h

vi `grep -l LedHID *`
%s/LedHIDDevice/ProviderHID/g
git mv LedHIDDevice.cpp ProviderHID.cpp
git mv LedHIDDevice.h ProviderHID.h

vi `grep -l LedRs *`
%s/LedRs232Device/ProviderRs232/g
git mv LedRs232Device.cpp ProviderRs232.cpp
git mv LedRs232Device.h ProviderRs232.h

vi `grep -l LedSpi *`
%s/LedSpiDevice/ProviderSpi/g
git mv LedSpiDevice.cpp ProviderSpi.cpp
git mv LedSpiDevice.h ProviderSpi.h
2016-08-28 07:12:47 +02:00

56 lines
1.3 KiB
C++

// STL includes
#include <cstring>
#include <cstdio>
#include <iostream>
#include <algorithm>
// Linux includes
#include <fcntl.h>
#include <sys/ioctl.h>
// hyperion local includes
#include "LedDeviceAPA102.h"
LedDeviceAPA102::LedDeviceAPA102(const Json::Value &deviceConfig)
: ProviderSpi(deviceConfig)
{
_latchTime_ns = 500000;
}
LedDevice* LedDeviceAPA102::construct(const Json::Value &deviceConfig)
{
return new LedDeviceAPA102(deviceConfig);
}
int LedDeviceAPA102::write(const std::vector<ColorRgb> &ledValues)
{
_ledCount = ledValues.size();
const unsigned int startFrameSize = 4;
const unsigned int endFrameSize = std::max<unsigned int>(((_ledCount + 15) / 16), 4);
const unsigned int APAbufferSize = (_ledCount * 4) + startFrameSize + endFrameSize;
if(_ledBuffer.size() != APAbufferSize){
_ledBuffer.resize(APAbufferSize, 0xFF);
_ledBuffer[0] = 0x00;
_ledBuffer[1] = 0x00;
_ledBuffer[2] = 0x00;
_ledBuffer[3] = 0x00;
}
for (signed iLed=0; iLed < _ledCount; ++iLed) {
const ColorRgb& rgb = ledValues[iLed];
_ledBuffer[4+iLed*4] = 0xFF;
_ledBuffer[4+iLed*4+1] = rgb.red;
_ledBuffer[4+iLed*4+2] = rgb.green;
_ledBuffer[4+iLed*4+3] = rgb.blue;
}
return writeBytes(_ledBuffer.size(), _ledBuffer.data());
}
int LedDeviceAPA102::switchOff()
{
return write(std::vector<ColorRgb>(_ledCount, ColorRgb{0,0,0}));
}