Improved philip hue device:
add lamp types autodetection add full xy-Colorspace implementations reduce http requests to the hue bridge. This prevents DDOS -> 503 add color black -> lamps off save state is temporary disabled Former-commit-id: 5a0328fe80a06a9f670c5190190e239857cbd15c
This commit is contained in:
bimsarck
parent
7aa88088f4
commit
c4c7ed0331
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@ -1,3 +1,4 @@
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#include <iostream>
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// Local-Hyperion includes
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#include "LedDevicePhilipsHue.h"
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@ -10,43 +11,91 @@
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#include <QHttpRequestHeader>
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#include <QEventLoop>
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LedDevicePhilipsHue::LedDevicePhilipsHue(const std::string& output) :
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host(output.c_str()), username("newdeveloper") {
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LedDevicePhilipsHue::LedDevicePhilipsHue(const std::string &output) :
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host(output.c_str()), username("newdeveloper") {
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http = new QHttp(host);
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timer.setInterval(3000);
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/* timer.setInterval(3000);
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timer.setSingleShot(true);
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connect(&timer, SIGNAL(timeout()), this, SLOT(restoreStates()));
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connect(&timer, SIGNAL(timeout()), this, SLOT(restoreStates()));*/
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}
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LedDevicePhilipsHue::~LedDevicePhilipsHue() {
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delete http;
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}
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int LedDevicePhilipsHue::write(const std::vector<ColorRgb> & ledValues) {
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int LedDevicePhilipsHue::write(const std::vector<ColorRgb> &ledValues) {
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// Save light states if not done before.
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if (!statesSaved()) {
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if (!statesSaved())
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saveStates(ledValues.size());
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switchOn(ledValues.size());
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}
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// Iterate through colors and set light states.
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unsigned int lightId = 1;
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for (const ColorRgb& color : ledValues) {
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float x, y, b;
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// Scale colors from [0, 255] to [0, 1] and convert to xy space.
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rgbToXYBrightness(color.red / 255.0f, color.green / 255.0f, color.blue / 255.0f, x, y, b);
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// Send adjust color command in JSON format.
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put(getStateRoute(lightId), QString("{\"xy\": [%1, %2]}").arg(x).arg(y));
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// Send brightness color command in JSON format.
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put(getStateRoute(lightId), QString("{\"bri\": %1}").arg(qRound(b * 255.0f)));
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// Next light id.
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unsigned int lightId = 0;
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for (const ColorRgb &color : ledValues) {
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lightId++;
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// Send only request to the brigde if color changed (prevents DDOS --> 503)
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if (!oldLedValues.empty())
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if(!hasColorChanged(lightId, &color))
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continue;
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float r = color.red / 255.0f;
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float g = color.green / 255.0f;
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float b = color.blue / 255.0f;
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//set color gamut triangle
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if(std::find(hueBulbs.begin(), hueBulbs.end(), modelIds[(lightId - 1)]) != hueBulbs.end()) {
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Red = {0.675f, 0.322f};
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Green = {0.4091f, 0.518f};
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Blue = {0.167f, 0.04f};
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} else if (std::find(livingColors.begin(),
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livingColors.end(), modelIds[(lightId - 1)]) != livingColors.end()) {
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Red = {0.703f, 0.296f};
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Green = {0.214f, 0.709f};
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Blue = {0.139f, 0.081f};
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} else {
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Red = {1.0f, 0.0f};
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Green = {0.0f, 1.0f};
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Blue = {0.0f, 0.0f};
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}
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// if color equal black, switch off lamp ...
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if (r == 0.0f && g == 0.0f && b == 0.0f) {
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switchLampOff(lightId);
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continue;
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}
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// ... and if lamp off, switch on
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if (!checkOnStatus(states[(lightId - 1)]))
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switchLampOn(lightId);
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float bri;
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CGPoint p = CGPointMake(0, 0);
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// Scale colors from [0, 255] to [0, 1] and convert to xy space.
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rgbToXYBrightness(r, g, b, &p, bri);
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// Send adjust color and brightness command in JSON format.
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put(getStateRoute(lightId),
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QString("{\"xy\": [%1, %2], \"bri\": %3}").arg(p.x).arg(p.y).arg(qRound(b * 255.0f)));
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}
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timer.start();
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oldLedValues = ledValues;
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//timer.start();
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return 0;
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}
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bool LedDevicePhilipsHue::hasColorChanged(unsigned int lightId, const ColorRgb *color) {
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bool matchFound = true;
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const ColorRgb &tmpOldColor = oldLedValues[(lightId - 1)];
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if ((*color).red == tmpOldColor.red)
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matchFound = false;
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if (!matchFound && (*color).green == tmpOldColor.green)
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matchFound = false;
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else
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matchFound = true;
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if (!matchFound && (*color).blue == tmpOldColor.blue)
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matchFound = false;
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else
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matchFound = true;
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return matchFound;
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}
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int LedDevicePhilipsHue::switchOff() {
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timer.stop();
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//timer.stop();
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// If light states have been saved before, ...
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if (statesSaved()) {
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// ... restore them.
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@ -55,6 +104,10 @@ int LedDevicePhilipsHue::switchOff() {
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return 0;
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}
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bool LedDevicePhilipsHue::checkOnStatus(QString status) {
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return status.contains("\"on\":true");
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}
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void LedDevicePhilipsHue::put(QString route, QString content) {
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QString url = QString("/api/%1/%2").arg(username).arg(route);
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QHttpRequestHeader header("PUT", url);
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@ -69,6 +122,7 @@ void LedDevicePhilipsHue::put(QString route, QString content) {
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http->request(header, content.toAscii());
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// Go into the loop until the request is finished.
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loop.exec();
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//std::cout << http->readAll().data() << std::endl;
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}
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QByteArray LedDevicePhilipsHue::get(QString route) {
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@ -96,6 +150,7 @@ QString LedDevicePhilipsHue::getRoute(unsigned int lightId) {
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void LedDevicePhilipsHue::saveStates(unsigned int nLights) {
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// Clear saved light states.
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states.clear();
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modelIds.clear();
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// Use json parser to parse reponse.
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Json::Reader reader;
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Json::FastWriter writer;
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@ -117,14 +172,19 @@ void LedDevicePhilipsHue::saveStates(unsigned int nLights) {
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state["bri"] = json["state"]["bri"];
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}
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// Save state object.
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modelIds.push_back(QString(writer.write(json["modelid"]).c_str()).trimmed().replace("\"", ""));
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states.push_back(QString(writer.write(state).c_str()).trimmed());
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}
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}
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void LedDevicePhilipsHue::switchOn(unsigned int nLights) {
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for (unsigned int i = 0; i < nLights; i++) {
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put(getStateRoute(i + 1), "{\"on\": true}");
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}
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void LedDevicePhilipsHue::switchLampOn(unsigned int lightId) {
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put(getStateRoute(lightId), "{\"on\": true}");
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states[(lightId - 1)].replace("\"on\":false", "\"on\":true");
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}
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void LedDevicePhilipsHue::switchLampOff(unsigned int lightId) {
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put(getStateRoute(lightId), "{\"on\": false}");
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states[(lightId - 1)].replace("\"on\":true", "\"on\":false");
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}
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void LedDevicePhilipsHue::restoreStates() {
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@ -135,30 +195,119 @@ void LedDevicePhilipsHue::restoreStates() {
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}
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// Clear saved light states.
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states.clear();
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modelIds.clear();
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oldLedValues.clear();
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}
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bool LedDevicePhilipsHue::statesSaved() {
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return !states.empty();
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}
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void LedDevicePhilipsHue::rgbToXYBrightness(float red, float green, float blue, float& x, float& y, float& brightness) {
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// Apply gamma correction.
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red = (red > 0.04045f) ? qPow((red + 0.055f) / (1.0f + 0.055f), 2.4f) : (red / 12.92f);
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green = (green > 0.04045f) ? qPow((green + 0.055f) / (1.0f + 0.055f), 2.4f) : (green / 12.92f);
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blue = (blue > 0.04045f) ? qPow((blue + 0.055f) / (1.0f + 0.055f), 2.4f) : (blue / 12.92f);
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// Convert to XYZ space.
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float X = red * 0.649926f + green * 0.103455f + blue * 0.197109f;
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float Y = red * 0.234327f + green * 0.743075f + blue * 0.022598f;
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float Z = red * 0.0000000f + green * 0.053077f + blue * 1.035763f;
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// Convert to x,y space.
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x = X / (X + Y + Z);
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y = Y / (X + Y + Z);
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if (isnan(x)) {
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x = 0.0f;
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}
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if (isnan(y)) {
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y = 0.0f;
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CGPoint LedDevicePhilipsHue::CGPointMake(float x, float y) {
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CGPoint p;
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p.x = x;
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p.y = y;
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return p;
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}
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float LedDevicePhilipsHue::CrossProduct(CGPoint p1, CGPoint p2) {
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return (p1.x * p2.y - p1.y * p2.x);
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}
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bool LedDevicePhilipsHue::CheckPointInLampsReach(CGPoint p) {
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CGPoint v1 = CGPointMake(Green.x - Red.x, Green.y - Red.y);
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CGPoint v2 = CGPointMake(Blue.x - Red.x, Blue.y - Red.y);
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CGPoint q = CGPointMake(p.x - Red.x, p.y - Red.y);
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float s = CrossProduct(q, v2) / CrossProduct(v1, v2);
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float t = CrossProduct(v1, q) / CrossProduct(v1, v2);
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if ((s >= 0.0f) && (t >= 0.0f) && (s + t <= 1.0f))
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return true;
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else
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return false;
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}
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CGPoint LedDevicePhilipsHue::GetClosestPointToPoint(CGPoint A, CGPoint B, CGPoint P) {
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CGPoint AP = CGPointMake(P.x - A.x, P.y - A.y);
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CGPoint AB = CGPointMake(B.x - A.x, B.y - A.y);
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float ab2 = AB.x * AB.x + AB.y * AB.y;
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float ap_ab = AP.x * AB.x + AP.y * AB.y;
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float t = ap_ab / ab2;
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if (t < 0.0f)
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t = 0.0f;
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else if (t > 1.0f)
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t = 1.0f;
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return CGPointMake(A.x + AB.x * t, A.y + AB.y * t);
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}
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float LedDevicePhilipsHue::GetDistanceBetweenTwoPoints(CGPoint one, CGPoint two) {
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float dx = one.x - two.x; // horizontal difference
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float dy = one.y - two.y; // vertical difference
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float dist = sqrt(dx * dx + dy * dy);
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return dist;
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}
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void LedDevicePhilipsHue::rgbToXYBrightness(float red, float green, float blue, CGPoint *xyPoint, float &brightness) {
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//Apply gamma correction.
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float r = (red > 0.04045f) ? powf((red + 0.055f) / (1.0f + 0.055f), 2.4f) : (red / 12.92f);
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float g = (green > 0.04045f) ? powf((green + 0.055f) / (1.0f + 0.055f), 2.4f) : (green / 12.92f);
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float b = (blue > 0.04045f) ? powf((blue + 0.055f) / (1.0f + 0.055f), 2.4f) : (blue / 12.92f);
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//Convert to XYZ space.
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float X = r * 0.649926f + g * 0.103455f + b * 0.197109f;
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float Y = r * 0.234327f + g * 0.743075f + b * 0.022598f;
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float Z = r * 0.0000000f + g * 0.053077f + b * 1.035763f;
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//Convert to x,y space.
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float cx = X / (X + Y + Z + 0.0000001f);
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float cy = Y / (X + Y + Z + 0.0000001f);
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if (isnan(cx))
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cx = 0.0f;
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if (isnan(cy))
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cy = 0.0f;
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(*xyPoint).x = cx;
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(*xyPoint).y = cy;
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//Check if the given XY value is within the colourreach of our lamps.
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bool inReachOfLamps = CheckPointInLampsReach(*xyPoint);
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if (!inReachOfLamps) {
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//It seems the colour is out of reach
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//let's find the closes colour we can produce with our lamp and send this XY value out.
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//Find the closest point on each line in the triangle.
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CGPoint pAB = GetClosestPointToPoint(Red, Green, *xyPoint);
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CGPoint pAC = GetClosestPointToPoint(Blue, Red, *xyPoint);
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CGPoint pBC = GetClosestPointToPoint(Green, Blue, *xyPoint);
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//Get the distances per point and see which point is closer to our Point.
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float dAB = GetDistanceBetweenTwoPoints(*xyPoint, pAB);
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float dAC = GetDistanceBetweenTwoPoints(*xyPoint, pAC);
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float dBC = GetDistanceBetweenTwoPoints(*xyPoint, pBC);
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float lowest = dAB;
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CGPoint closestPoint = pAB;
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if (dAC < lowest) {
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lowest = dAC;
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closestPoint = pAC;
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}
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if (dBC < lowest) {
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lowest = dBC;
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closestPoint = pBC;
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}
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//Change the xy value to a value which is within the reach of the lamp.
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(*xyPoint).x = closestPoint.x;
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(*xyPoint).y = closestPoint.y;
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}
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// Brightness is simply Y in the XYZ space.
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brightness = Y;
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}
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@ -22,6 +22,11 @@
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*
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* @author ntim (github)
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*/
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struct CGPoint;
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struct CGPoint {
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float x;
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float y;
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};
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class LedDevicePhilipsHue: public QObject, public LedDevice {
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Q_OBJECT
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public:
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@ -44,7 +49,7 @@ public:
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///
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/// @return Zero on success else negative
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///
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virtual int write(const std::vector<ColorRgb> & ledValues);
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virtual int write(const std::vector<ColorRgb> &ledValues);
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/// Restores the original state of the leds.
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virtual int switchOff();
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@ -54,6 +59,19 @@ private slots:
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void restoreStates();
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private:
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// ModelIds
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const std::vector<QString> hueBulbs = {"LCT001", "LCT002", "LCT003"};
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const std::vector<QString> livingColors = {"LLC001", "LLC005", "LLC006", "LLC007",
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"LLC011", "LLC012", "LLC013", "LST001"};
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/// LivingColors color gamut triangle
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CGPoint Red , Green, Blue;
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CGPoint CGPointMake(float x, float y);
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float CrossProduct(CGPoint p1, CGPoint p2);
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bool CheckPointInLampsReach(CGPoint p);
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CGPoint GetClosestPointToPoint(CGPoint A, CGPoint B, CGPoint P);
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float GetDistanceBetweenTwoPoints(CGPoint one, CGPoint two);
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/// Array to save the light states.
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std::vector<QString> states;
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/// Ip address of the bridge
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@ -65,6 +83,13 @@ private:
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/// Use timer to reset lights when we got into "GRABBINGMODE_OFF".
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QTimer timer;
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std::vector<ColorRgb> oldLedValues;
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std::vector<QString> modelIds;
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bool hasColorChanged(unsigned int lightId, const ColorRgb *color);
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bool checkOnStatus(QString status);
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///
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/// Sends a HTTP GET request (blocking).
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///
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@ -109,7 +134,9 @@ private:
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///
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/// @param nLights the number of lights
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///
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void switchOn(unsigned int nLights);
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void switchLampOn(unsigned int lightId);
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void switchLampOff(unsigned int lightId);
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///
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/// @return true if light states have been saved.
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@ -132,6 +159,6 @@ private:
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///
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/// @param brightness converted brightness component
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///
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void rgbToXYBrightness(float red, float green, float blue, float& x, float& y, float& brightness);
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void rgbToXYBrightness(float red, float green, float blue, CGPoint *xyPoint, float &brightness);
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};
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