hyperion.ng/libsrc/leddevice/LedDeviceLpd8806.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

42 lines
1.1 KiB
C++

#include "LedDeviceLpd8806.h"
LedDeviceLpd8806::LedDeviceLpd8806(const Json::Value &deviceConfig)
: ProviderSpi()
{
_deviceReady = init(deviceConfig);
}
LedDevice* LedDeviceLpd8806::construct(const Json::Value &deviceConfig)
{
return new LedDeviceLpd8806(deviceConfig);
}
bool LedDeviceLpd8806::init(const Json::Value &deviceConfig)
{
ProviderSpi::init(deviceConfig);
const unsigned clearSize = _ledCount/32+1;
unsigned messageLength = _ledRGBCount + clearSize;
// Initialise the buffer
_ledBuffer.resize(messageLength, 0x00);
// Perform an initial reset to start accepting data on the first led
return writeBytes(clearSize, _ledBuffer.data()) >= 0;
}
int LedDeviceLpd8806::write(const std::vector<ColorRgb> &ledValues)
{
// Copy the colors from the ColorRgb vector to the Ldp8806 data vector
for (unsigned iLed=0; iLed<(unsigned)_ledCount; ++iLed)
{
const ColorRgb& color = ledValues[iLed];
_ledBuffer[iLed*3] = 0x80 | (color.red >> 1);
_ledBuffer[iLed*3+1] = 0x80 | (color.green >> 1);
_ledBuffer[iLed*3+2] = 0x80 | (color.blue >> 1);
}
// Write the data
return (writeBytes(_ledBuffer.size(), _ledBuffer.data()) < 0) ? -1 : 0;
}