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powersync-plugins
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fade red and blue separately instead of cross-fading

master
Michael Zanetti 2018-04-19 00:28:05 +02:00
parent ee850d0b17
commit 5925eb0320
1 changed files with 9 additions and 3 deletions
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12
elgato/devicepluginelgato.cpp
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@ -499,10 +499,16 @@ DeviceManager::DeviceError DevicePluginElgato::executeAction(Device *device, con
device->setStateValue(aveaColorStateTypeId, color);
return DeviceManager::DeviceErrorNoError;
} else if (action.actionTypeId() == aveaColorTemperatureActionTypeId) {
// (ct-153) : x = (500-153) : 255
int ctValue = action.param(aveaColorTemperatureActionParamTypeId).value().toInt();
int blue = (ctValue - 153) * 255 / (500-153);
int red = 255 - blue;
// normalize from 0 to 347 instead of 153 to 500
int ct = ctValue - 153;
// for blue: lower half fades blue from 255 to 0
// ct : (255-blue) = (347 / 2) : 255
int blue = qMax(0, 255 - (ct * 255 / (347 / 2)));
// for red: upper half fades red from 0 255
// ct - (347/2) : red = (347 / 2) : 255
int red = qMax(0, (ct - (347/2)) * 255 / ((500-153)/2));
QColor color;
color.setRed(red);
color.setGreen(0);