hyperion.ng/libsrc/leddevice/LedDeviceAPA102.cpp
redPanther 5aac2be702 Leddevice refactoring the next next part (#263)
* switch rs232 provider to completly async transfer

* start of implementing a seperate init function for leddevices

* rename setconfig to init

* more fixes

* implement missing code

* fix code style

* remove debug  code

* remove  debug stuff

* set loglevel to original state
2016-10-08 08:14:36 +02:00

44 lines
1.1 KiB
C++

#include "LedDeviceAPA102.h"
LedDeviceAPA102::LedDeviceAPA102(const Json::Value &deviceConfig)
: ProviderSpi()
{
_deviceReady = init(deviceConfig);
}
LedDevice* LedDeviceAPA102::construct(const Json::Value &deviceConfig)
{
return new LedDeviceAPA102(deviceConfig);
}
bool LedDeviceAPA102::init(const Json::Value &deviceConfig)
{
ProviderSpi::init(deviceConfig);
_latchTime_ns = 500000; // fixed latchtime
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;
_ledBuffer.resize(APAbufferSize, 0xFF);
_ledBuffer[0] = 0x00;
_ledBuffer[1] = 0x00;
_ledBuffer[2] = 0x00;
_ledBuffer[3] = 0x00;
return true;
}
int LedDeviceAPA102::write(const std::vector<ColorRgb> &ledValues)
{
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());
}