WLED/wled00/udp.cpp

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#include "wled.h"
/*
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* UDP sync notifier / Realtime / Hyperion / TPM2.NET
*/
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#define WLEDPACKETSIZE 29
#define UDP_IN_MAXSIZE 1472
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void notify(byte callMode, bool followUp)
{
if (!udpConnected) return;
switch (callMode)
{
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case NOTIFIER_CALL_MODE_INIT: return;
case NOTIFIER_CALL_MODE_DIRECT_CHANGE: if (!notifyDirect) return; break;
case NOTIFIER_CALL_MODE_BUTTON: if (!notifyButton) return; break;
case NOTIFIER_CALL_MODE_NIGHTLIGHT: if (!notifyDirect) return; break;
case NOTIFIER_CALL_MODE_HUE: if (!notifyHue) return; break;
case NOTIFIER_CALL_MODE_PRESET_CYCLE: if (!notifyDirect) return; break;
case NOTIFIER_CALL_MODE_BLYNK: if (!notifyDirect) return; break;
case NOTIFIER_CALL_MODE_ALEXA: if (!notifyAlexa) return; break;
default: return;
}
byte udpOut[WLEDPACKETSIZE];
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udpOut[0] = 0; //0: wled notifier protocol 1: WARLS protocol
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udpOut[1] = callMode;
udpOut[2] = bri;
udpOut[3] = col[0];
udpOut[4] = col[1];
udpOut[5] = col[2];
udpOut[6] = nightlightActive;
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udpOut[7] = nightlightDelayMins;
udpOut[8] = effectCurrent;
udpOut[9] = effectSpeed;
udpOut[10] = col[3];
//compatibilityVersionByte:
//0: old 1: supports white 2: supports secondary color
//3: supports FX intensity, 24 byte packet 4: supports transitionDelay 5: sup palette
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//6: supports timebase syncing, 29 byte packet 7: supports tertiary color
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udpOut[11] = 7;
udpOut[12] = colSec[0];
udpOut[13] = colSec[1];
udpOut[14] = colSec[2];
udpOut[15] = colSec[3];
udpOut[16] = effectIntensity;
udpOut[17] = (transitionDelay >> 0) & 0xFF;
udpOut[18] = (transitionDelay >> 8) & 0xFF;
udpOut[19] = effectPalette;
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uint32_t colTer = strip.getSegment(strip.getMainSegmentId()).colors[2];
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udpOut[20] = (colTer >> 16) & 0xFF;
udpOut[21] = (colTer >> 8) & 0xFF;
udpOut[22] = (colTer >> 0) & 0xFF;
udpOut[23] = (colTer >> 24) & 0xFF;
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udpOut[24] = followUp;
uint32_t t = millis() + strip.timebase;
udpOut[25] = (t >> 24) & 0xFF;
udpOut[26] = (t >> 16) & 0xFF;
udpOut[27] = (t >> 8) & 0xFF;
udpOut[28] = (t >> 0) & 0xFF;
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IPAddress broadcastIp;
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broadcastIp = ~uint32_t(WiFi.subnetMask()) | uint32_t(WiFi.gatewayIP());
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notifierUdp.beginPacket(broadcastIp, udpPort);
notifierUdp.write(udpOut, WLEDPACKETSIZE);
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notifierUdp.endPacket();
notificationSentCallMode = callMode;
notificationSentTime = millis();
notificationTwoRequired = (followUp)? false:notifyTwice;
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}
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void realtimeLock(uint32_t timeoutMs, byte md)
{
if (!realtimeMode && !realtimeOverride){
for (uint16_t i = 0; i < ledCount; i++)
{
strip.setPixelColor(i,0,0,0,0);
}
}
realtimeTimeout = millis() + timeoutMs;
if (timeoutMs == 255001 || timeoutMs == 65000) realtimeTimeout = UINT32_MAX;
realtimeMode = md;
if (arlsForceMaxBri && !realtimeOverride) strip.setBrightness(scaledBri(255));
}
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#define TMP2NET_OUT_PORT 65442
void sendTPM2Ack() {
notifierUdp.beginPacket(notifierUdp.remoteIP(), TMP2NET_OUT_PORT);
uint8_t response_ack = 0xac;
notifierUdp.write(&response_ack, 1);
notifierUdp.endPacket();
}
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void handleNotifications()
{
//send second notification if enabled
if(udpConnected && notificationTwoRequired && millis()-notificationSentTime > 250){
notify(notificationSentCallMode,true);
}
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if (e131NewData && millis() - strip.getLastShow() > 15)
{
e131NewData = false;
strip.show();
}
//unlock strip when realtime UDP times out
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if (realtimeMode && millis() > realtimeTimeout)
{
if (realtimeOverride == REALTIME_OVERRIDE_ONCE) realtimeOverride = REALTIME_OVERRIDE_NONE;
strip.setBrightness(bri);
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realtimeMode = REALTIME_MODE_INACTIVE;
realtimeIP[0] = 0;
}
//receive UDP notifications
if (!udpConnected || !(receiveNotifications || receiveDirect)) return;
bool isSupp = false;
uint16_t packetSize = notifierUdp.parsePacket();
if (!packetSize && udp2Connected) {
packetSize = notifier2Udp.parsePacket();
isSupp = true;
}
//hyperion / raw RGB
if (!packetSize && udpRgbConnected) {
packetSize = rgbUdp.parsePacket();
if (packetSize) {
if (!receiveDirect) return;
if (packetSize > UDP_IN_MAXSIZE || packetSize < 3) return;
realtimeIP = rgbUdp.remoteIP();
DEBUG_PRINTLN(rgbUdp.remoteIP());
uint8_t lbuf[packetSize];
rgbUdp.read(lbuf, packetSize);
realtimeLock(realtimeTimeoutMs, REALTIME_MODE_HYPERION);
if (realtimeOverride) return;
uint16_t id = 0;
for (uint16_t i = 0; i < packetSize -2; i += 3)
{
setRealtimePixel(id, lbuf[i], lbuf[i+1], lbuf[i+2], 0);
id++; if (id >= ledCount) break;
}
strip.show();
return;
}
}
//notifier and UDP realtime
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if (!packetSize || packetSize > UDP_IN_MAXSIZE) return;
if (!isSupp && notifierUdp.remoteIP() == WiFi.localIP()) return; //don't process broadcasts we send ourselves
uint8_t udpIn[packetSize +1];
if (isSupp) notifier2Udp.read(udpIn, packetSize);
else notifierUdp.read(udpIn, packetSize);
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//wled notifier, block if realtime packets active
if (udpIn[0] == 0 && !realtimeMode && receiveNotifications)
{
//ignore notification if received within a second after sending a notification ourselves
if (millis() - notificationSentTime < 1000) return;
if (udpIn[1] > 199) return; //do not receive custom versions
bool someSel = (receiveNotificationBrightness || receiveNotificationColor || receiveNotificationEffects);
//apply colors from notification
if (receiveNotificationColor || !someSel)
{
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col[0] = udpIn[3];
col[1] = udpIn[4];
col[2] = udpIn[5];
if (udpIn[11] > 0) //sending module's white val is intended
{
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col[3] = udpIn[10];
if (udpIn[11] > 1)
{
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colSec[0] = udpIn[12];
colSec[1] = udpIn[13];
colSec[2] = udpIn[14];
colSec[3] = udpIn[15];
}
if (udpIn[11] > 5)
{
uint32_t t = (udpIn[25] << 24) | (udpIn[26] << 16) | (udpIn[27] << 8) | (udpIn[28]);
t += 2;
t -= millis();
strip.timebase = t;
}
if (udpIn[11] > 6)
{
strip.setColor(2, udpIn[20], udpIn[21], udpIn[22], udpIn[23]); //tertiary color
}
}
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}
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//apply effects from notification
if (udpIn[11] < 200 && (receiveNotificationEffects || !someSel))
{
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if (udpIn[8] < strip.getModeCount()) effectCurrent = udpIn[8];
effectSpeed = udpIn[9];
if (udpIn[11] > 2) effectIntensity = udpIn[16];
if (udpIn[11] > 4 && udpIn[19] < strip.getPaletteCount()) effectPalette = udpIn[19];
}
if (udpIn[11] > 3)
{
transitionDelayTemp = ((udpIn[17] << 0) & 0xFF) + ((udpIn[18] << 8) & 0xFF00);
}
nightlightActive = udpIn[6];
if (nightlightActive) nightlightDelayMins = udpIn[7];
if (receiveNotificationBrightness || !someSel) bri = udpIn[2];
colorUpdated(NOTIFIER_CALL_MODE_NOTIFICATION);
return;
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}
if (!receiveDirect) return;
//TPM2.NET
if (udpIn[0] == 0x9c)
{
//WARNING: this code assumes that the final TMP2.NET payload is evenly distributed if using multiple packets (ie. frame size is constant)
//if the number of LEDs in your installation doesn't allow that, please include padding bytes at the end of the last packet
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byte tpmType = udpIn[1];
if (tpmType == 0xaa) { //TPM2.NET polling, expect answer
sendTPM2Ack(); return;
}
if (tpmType != 0xda) return; //return if notTPM2.NET data
realtimeIP = (isSupp) ? notifier2Udp.remoteIP() : notifierUdp.remoteIP();
realtimeLock(realtimeTimeoutMs, REALTIME_MODE_TPM2NET);
if (realtimeOverride) return;
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tpmPacketCount++; //increment the packet count
if (tpmPacketCount == 1) tpmPayloadFrameSize = (udpIn[2] << 8) + udpIn[3]; //save frame size for the whole payload if this is the first packet
byte packetNum = udpIn[4]; //starts with 1!
byte numPackets = udpIn[5];
uint16_t id = (tpmPayloadFrameSize/3)*(packetNum-1); //start LED
for (uint16_t i = 6; i < tpmPayloadFrameSize + 4; i += 3)
{
if (id < ledCount)
{
setRealtimePixel(id, udpIn[i], udpIn[i+1], udpIn[i+2], 0);
id++;
}
else break;
}
if (tpmPacketCount == numPackets) //reset packet count and show if all packets were received
{
tpmPacketCount = 0;
strip.show();
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}
return;
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}
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//UDP realtime: 1 warls 2 drgb 3 drgbw
if (udpIn[0] > 0 && udpIn[0] < 5)
{
realtimeIP = (isSupp) ? notifier2Udp.remoteIP() : notifierUdp.remoteIP();
DEBUG_PRINTLN(realtimeIP);
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if (packetSize < 2) return;
if (udpIn[1] == 0)
{
realtimeTimeout = 0;
return;
} else {
realtimeLock(udpIn[1]*1000 +1, REALTIME_MODE_UDP);
}
if (realtimeOverride) return;
if (udpIn[0] == 1) //warls
{
for (uint16_t i = 2; i < packetSize -3; i += 4)
{
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setRealtimePixel(udpIn[i], udpIn[i+1], udpIn[i+2], udpIn[i+3], 0);
}
} else if (udpIn[0] == 2) //drgb
{
uint16_t id = 0;
for (uint16_t i = 2; i < packetSize -2; i += 3)
{
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setRealtimePixel(id, udpIn[i], udpIn[i+1], udpIn[i+2], 0);
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id++; if (id >= ledCount) break;
}
} else if (udpIn[0] == 3) //drgbw
{
uint16_t id = 0;
for (uint16_t i = 2; i < packetSize -3; i += 4)
{
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setRealtimePixel(id, udpIn[i], udpIn[i+1], udpIn[i+2], udpIn[i+3]);
id++; if (id >= ledCount) break;
}
} else if (udpIn[0] == 4) //dnrgb
{
uint16_t id = ((udpIn[3] << 0) & 0xFF) + ((udpIn[2] << 8) & 0xFF00);
for (uint16_t i = 4; i < packetSize -2; i += 3)
{
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if (id >= ledCount) break;
setRealtimePixel(id, udpIn[i], udpIn[i+1], udpIn[i+2], 0);
id++;
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}
}
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strip.show();
return;
}
// API over UDP
udpIn[packetSize] = '\0';
if (udpIn[0] >= 'A' && udpIn[0] <= 'Z') { //HTTP API
String apireq = "win&";
apireq += (char*)udpIn;
handleSet(nullptr, apireq);
} else if (udpIn[0] == '{') { //JSON API
DynamicJsonDocument jsonBuffer(2048);
DeserializationError error = deserializeJson(jsonBuffer, udpIn);
JsonObject root = jsonBuffer.as<JsonObject>();
if (!error && !root.isNull()) deserializeState(root);
}
}
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void setRealtimePixel(uint16_t i, byte r, byte g, byte b, byte w)
{
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uint16_t pix = i + arlsOffset;
if (pix < ledCount)
{
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if (!arlsDisableGammaCorrection && strip.gammaCorrectCol)
{
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strip.setPixelColor(pix, strip.gamma8(r), strip.gamma8(g), strip.gamma8(b), strip.gamma8(w));
} else {
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strip.setPixelColor(pix, r, g, b, w);
}
}
}