Merge branch 'pin-dropdown' into beta-3

wled00/bus_wrapper.h

@@ -122,6 +122,9 @@
 #define I_SS_LPO_3 48
 
 
+// In the following NeoGammaNullMethod can be replaced with NeoGammaWLEDMethod to perform Gamma correction implicitly
+// unfortunately that may apply Gamma correction to pre-calculated palettes which is undesired
+
 /*** ESP8266 Neopixel methods ***/
 #ifdef ESP8266
 //RGB

wled00/cfg.cpp

@@ -338,7 +338,7 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
   if (light_gc_col > 1.0f) gammaCorrectCol = true;
   else                     gammaCorrectCol = false;
   if (gammaCorrectVal > 1.0f && gammaCorrectVal <= 3) {
-    if (gammaCorrectVal != 2.8f) calcGammaTable(gammaCorrectVal);
+    if (gammaCorrectVal != 2.8f) NeoGammaWLEDMethod::calcGammaTable(gammaCorrectVal);
   } else {
     gammaCorrectVal = 1.0f; // no gamma correction
     gammaCorrectBri = false;

wled00/colors.cpp

@@ -302,7 +302,7 @@ uint16_t approximateKelvinFromRGB(uint32_t rgb) {
 }
 
 //gamma 2.8 lookup table used for color correction
-static byte gammaT[] = {
+uint8_t NeoGammaWLEDMethod::gammaT[256] = {
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,
     1,  1,  1,  1,  1,  1,  1,  1,  1,  2,  2,  2,  2,  2,  2,  2,
@@ -320,27 +320,22 @@ static byte gammaT[] = {
   177,180,182,184,186,189,191,193,196,198,200,203,205,208,210,213,
   215,218,220,223,225,228,231,233,236,239,241,244,247,249,252,255 };
 
-uint8_t gamma8_cal(uint8_t b, float gamma)
-{
-  return (int)(powf((float)b / 255.0f, gamma) * 255.0f + 0.5f);
-}
-
 // re-calculates & fills gamma table
-void calcGammaTable(float gamma)
+void NeoGammaWLEDMethod::calcGammaTable(float gamma)
 {
-  for (uint16_t i = 0; i < 256; i++) {
+  for (size_t i = 0; i < 256; i++) {
-    gammaT[i] = gamma8_cal(i, gamma);
+    gammaT[i] = (int)(powf((float)i / 255.0f, gamma) * 255.0f + 0.5f);
   }
 }
 
-// used for individual channel or brightness gamma correction
+uint8_t NeoGammaWLEDMethod::Correct(uint8_t value)
-uint8_t gamma8(uint8_t b)
 {
-  return gammaT[b];
+  if (!gammaCorrectCol) return value;
+  return gammaT[value];
 }
 
 // used for color gamma correction
-uint32_t gamma32(uint32_t color)
+uint32_t NeoGammaWLEDMethod::Correct32(uint32_t color)
 {
   if (!gammaCorrectCol) return color;
   uint8_t w = W(color);

wled00/data/settings_leds.htm

@@ -10,7 +10,7 @@
 		d.um_p = [];
 		d.rsvd = [];
 		d.ro_gpio = [];
-		d.max_gpio = 39;
+		d.max_gpio = 50;
 		var customStarts=false,startsDirty=[],maxCOOverrides=5;
 		var loc = false, locip, locproto = "http:";
 		function H(){window.open("https://kno.wled.ge/features/settings/#led-settings");}
@@ -26,8 +26,12 @@
 			d.body.appendChild(scE);
 			// success event 
 			scE.addEventListener("load", () => {
-				GetV();checkSi();setABL();
+				GetV();
+				checkSi();
+				setABL();
+				d.Sf.addEventListener("submit", trySubmit);
 				if (d.um_p[0]==-1) d.um_p.shift();
+				pinDropdowns();
 			});
 			// error event
 			scE.addEventListener("error", (ev) => {
@@ -49,7 +53,7 @@
 			maxB = b; maxV = v; maxM = m; maxPB = p; maxL = l;
 		}
 		function pinsOK() {
-			var LCs = d.getElementsByTagName("input");
+			var LCs = d.Sf.querySelectorAll("#mLC input[name^=L]"); // input fields
 			for (i=0; i<LCs.length; i++) {
 				var nm = LCs[i].name.substring(0,2);
 				// ignore IP address
@@ -59,23 +63,36 @@
 					if (t>=80) continue;
 				}
 				//check for pin conflicts
-				if (nm=="L0" || nm=="L1" || nm=="L2" || nm=="L3" || nm=="L4" || nm=="RL" || nm=="BT" || nm=="IR")
+				if (nm=="L0" || nm=="L1" || nm=="L2" || nm=="L3" || nm=="L4"/* || nm=="RL" || nm=="BT" || nm=="IR"*/)
 					if (LCs[i].value!="" && LCs[i].value!="-1") {
-						var p = []; // used pin array
+						var p = d.rsvd.concat(d.um_p); // used pin array
-						for (k=0;k<d.rsvd.length;k++) p.push(d.rsvd[k]); // fill with reservations
+						d.Sf.querySelectorAll("select.pin").forEach((e)=>{if(e.value>-1)p.push(parseInt(e.value));}) // buttons, IR & relay
-						for (k=0;k<d.um_p.length;k++) p.push(d.um_p[k]); // fill with usermod pins
+						if (p.some((e)=>e==parseInt(LCs[i].value))) {
-						if (p.some((e)=>e==parseInt(LCs[i].value,10))) {alert(`Sorry, pins ${JSON.stringify(p)} can't be used.`);LCs[i].value="";LCs[i].focus();return false;}
+							alert(`Sorry, pins ${JSON.stringify(p)} can't be used.`);
-						else if (!(nm == "IR" || nm=="BT") && d.ro_gpio.some((e)=>e==parseInt(LCs[i].value,10))) {alert(`Sorry, pins ${JSON.stringify(d.ro_gpio)} are input only.`);LCs[i].value="";LCs[i].focus();return false;}
+							LCs[i].value="";
-						for (j=i+1; j<LCs.length; j++)
+							LCs[i].focus();
-						{
+							return false;
+						}
+						else if (/*!(nm == "IR" || nm=="BT") &&*/ d.ro_gpio.some((e)=>e==parseInt(LCs[i].value))) {
+							alert(`Sorry, pins ${JSON.stringify(d.ro_gpio)} are input only.`);
+							LCs[i].value="";
+							LCs[i].focus();
+							return false;
+						}
+						for (j=i+1; j<LCs.length; j++) {
 							var n2 = LCs[j].name.substring(0,2);
-							if (n2=="L0" || n2=="L1" || n2=="L2" || n2=="L3" || n2=="L4" || n2=="RL" || n2=="BT" || n2=="IR") {
+							if (n2=="L0" || n2=="L1" || n2=="L2" || n2=="L3" || n2=="L4"/* || n2=="RL" || n2=="BT" || n2=="IR"*/) {
 								if (n2.substring(0,1)==="L") {
 									var m  = LCs[j].name.substring(2);
 									var t2 = parseInt(d.getElementsByName("LT"+m)[0].value, 10);
 									if (t2>=80) continue;
 								}
-								if (LCs[j].value!="" && LCs[i].value==LCs[j].value) {alert(`Pin conflict between ${LCs[i].name}/${LCs[j].name}!`);LCs[j].value="";LCs[j].focus();return false;}
+								if (LCs[j].value!="" && LCs[i].value==LCs[j].value) {
+									alert(`Pin conflict between ${LCs[i].name}/${LCs[j].name}!`);
+									LCs[j].value="";
+									LCs[j].focus();
+									return false;
+								}
 							}
 						}
 					}
@@ -96,6 +113,7 @@
 			gId('abl').style.display = (en) ? 'inline':'none';
 			gId('psu2').style.display = (en) ? 'inline':'none';
 			if (d.Sf.LA.value > 0) setABL();
+			UI();
 		}
 		function enLA()
 		{
@@ -117,28 +135,28 @@
 				default: gId('LAdis').style.display = 'inline';
 			}
 			gId('m1').innerHTML = maxM;
-			d.getElementsByName("Sf")[0].addEventListener("submit", trySubmit);
-			UI();
 		}
 		//returns mem usage
 		function getMem(t, n) {
 			let len = parseInt(d.getElementsByName("LC"+n)[0].value);
 			len += parseInt(d.getElementsByName("SL"+n)[0].value); // skipped LEDs are allocated too
+			let dbl = 0;
+			if (d.Sf.LD.checked) dbl = len * 3;	// double buffering
 			if (t < 32) {
 				if (t==26 || t==29) len *= 2; // 16 bit LEDs
 				if (maxM < 10000 && d.getElementsByName("L0"+n)[0].value == 3) { //8266 DMA uses 5x the mem
-					if (t > 28) return len*20; //RGBW
+					if (t > 28) return len*20 + dbl; //RGBW
-					return len*15;
+					return len*15 + dbl;
 				} else if (maxM >= 10000) //ESP32 RMT uses double buffer?
 				{
-					if (t > 28) return len*8; //RGBW
+					if (t > 28) return len*8 + dbl; //RGBW
-					return len*6;
+					return len*6 + dbl;
 				}
-				if (t > 28) return len*4; //RGBW
+				if (t > 28) return len*4 + dbl; //RGBW
-				return len*3;
+				return len*3 + dbl;
 			}
-			if (t > 31 && t < 48) return 5;
+			if (t > 31 && t < 48) return 5;	// analog
-			return len*3;
+			return len*3 + dbl;
 		}
 
 		function UI(change=false)
@@ -151,15 +169,13 @@
 			else if (d.Sf.LA.value > 0) laprev = d.Sf.LA.value;
 
 			// enable/disable LED fields
-			var s = d.getElementsByTagName("select");
+			d.Sf.querySelectorAll("#mLC select[name^=LT]").forEach((s)=>{
-			for (i=0; i<s.length; i++) {
 				// is the field a LED type?
-				if (s[i].name.substring(0,2)=="LT") {
+				var n = s.name.substring(2);
-					var n = s[i].name.substring(2);
+				var t = parseInt(s.value);
-					var t = parseInt(s[i].value,10);
 				gId("p0d"+n).innerHTML = (t>=80 && t<96) ? "IP address:" : (t > 49) ? "Data GPIO:" : (t > 41) ? "GPIOs:" : "GPIO:";
 				gId("p1d"+n).innerHTML = (t> 49 && t<64) ? "Clk GPIO:" : "";
-					var LK = d.getElementsByName("L1"+n)[0]; // clock pin
+				//var LK = d.getElementsByName("L1"+n)[0]; // clock pin
 
 				memu += getMem(t, n); // calc memory
 
@@ -196,8 +212,7 @@
 				gId("dig"+n+"l").style.display = (t > 48 && t < 64) ? "inline":"none";  // bus clock speed
 				gId("rev"+n).innerHTML = (t >= 40 && t < 48) ? "Inverted output":"Reversed (rotated 180°)";  // change reverse text for analog
 				gId("psd"+n).innerHTML = (t >= 40 && t < 48) ? "Index:":"Start:";    // change analog start description
-				}
+			});
-			}
 			// display global white channel overrides
 			gId("wc").style.display = (gRGBW) ? 'inline':'none';
 			if (!gRGBW) {
@@ -205,7 +220,7 @@
 				d.Sf.CR.checked = false;
 			}
 			// check for pin conflicts
-			var LCs = d.getElementsByTagName("input");
+			var LCs = d.Sf.querySelectorAll("#mLC input[name^=L]"); // input fields
 			var sLC = 0, sPC = 0, maxLC = 0;
 			for (i=0; i<LCs.length; i++) {
 				var nm = LCs[i].name.substring(0,2);  // field name
@@ -243,15 +258,14 @@
 					}
 				}
 				// check for pin conflicts
-				if (nm=="L0" || nm=="L1" || nm=="L2" || nm=="L3" || nm=="L4" || nm=="RL" || nm=="BT" || nm=="IR")
+				if (nm=="L0" || nm=="L1" || nm=="L2" || nm=="L3" || nm=="L4"/* || nm=="RL" || nm=="BT" || nm=="IR"*/)
 					if (LCs[i].value!="" && LCs[i].value!="-1") {
-						var p = []; // used pin array
+						var p = d.rsvd.concat(d.um_p); // used pin array
-						for (k=0;k<d.rsvd.length;k++) p.push(d.rsvd[k]); // fill with reservations
+						d.Sf.querySelectorAll("select.pin").forEach((e)=>{if(e.value>-1)p.push(parseInt(e.value));}) // buttons, IR & relay
-						for (k=0;k<d.um_p.length;k++) p.push(d.um_p[k]); // fill with usermod pins
 						for (j=0; j<LCs.length; j++) {
 							if (i==j) continue;
 							var n2 = LCs[j].name.substring(0,2);
-							if (n2=="L0" || n2=="L1" || n2=="L2" || n2=="L3" || n2=="L4" || n2=="RL" || n2=="BT" || n2=="IR") {
+							if (n2=="L0" || n2=="L1" || n2=="L2" || n2=="L3" || n2=="L4"/* || n2=="RL" || n2=="BT" || n2=="IR"*/) {
 								if (n2.substring(0,1)==="L") {
 									var m  = LCs[j].name.substring(2);
 									var t2 = parseInt(d.getElementsByName("LT"+m)[0].value, 10);
@@ -261,13 +275,13 @@
 							}
 						}
 						// now check for conflicts
-						if (p.some((e)=>e==parseInt(LCs[i].value,10))) LCs[i].style.color="red"; else LCs[i].style.color=d.ro_gpio.some((e)=>e==parseInt(LCs[i].value,10))?"orange":"#fff";
+						if (p.some((e)=>e==parseInt(LCs[i].value))) LCs[i].style.color="red"; else LCs[i].style.color=d.ro_gpio.some((e)=>e==parseInt(LCs[i].value))?"orange":"#fff";
 					}
 				// check buttons, IR & relay
-				if (nm=="IR" || nm=="BT" || nm=="RL") {
+				//if (nm=="IR" || nm=="BT" || nm=="RL") {
-					LCs[i].max = d.max_gpio;
+				//	LCs[i].max = d.max_gpio;
-					LCs[i].min = -1;
+				//	LCs[i].min = -1;
-				}
+				//}
 			}
 			// update total led count
 			gId("lc").textContent = sLC;
@@ -366,11 +380,11 @@ ${i+1}:
 <span id="psd${i}">Start:</span> <input type="number" name="LS${i}" id="ls${i}" class="l starts" min="0" max="8191" value="${lastEnd(i)}" oninput="startsDirty[${i}]=true;UI();" required />&nbsp;
 <div id="dig${i}c" style="display:inline">Length: <input type="number" name="LC${i}" class="l" min="1" max="${maxPB}" value="1" required oninput="UI()" /></div><br>
 </div>
-<span id="p0d${i}">GPIO:</span> <input type="number" name="L0${i}" required class="s" onchange="UI()"/>
+<span id="p0d${i}">GPIO:</span><input type="number" name="L0${i}" required class="s" onchange="UI();pinUpd(this);"/>
-<span id="p1d${i}"></span><input type="number" name="L1${i}" class="s" onchange="UI()"/>
+<span id="p1d${i}"></span><input type="number" name="L1${i}" class="s" onchange="UI();pinUpd(this);"/>
-<span id="p2d${i}"></span><input type="number" name="L2${i}" class="s" onchange="UI()"/>
+<span id="p2d${i}"></span><input type="number" name="L2${i}" class="s" onchange="UI();pinUpd(this);"/>
-<span id="p3d${i}"></span><input type="number" name="L3${i}" class="s" onchange="UI()"/>
+<span id="p3d${i}"></span><input type="number" name="L3${i}" class="s" onchange="UI();pinUpd(this);"/>
-<span id="p4d${i}"></span><input type="number" name="L4${i}" class="s" onchange="UI()"/>
+<span id="p4d${i}"></span><input type="number" name="L4${i}" class="s" onchange="UI();pinUpd(this);"/>
 <div id="dig${i}r" style="display:inline"><br><span id="rev${i}">Reversed</span>: <input type="checkbox" name="CV${i}"></div>
 <div id="dig${i}s" style="display:inline"><br>Skip first LEDs: <input type="number" name="SL${i}" min="0" max="255" value="0" oninput="UI()"></div>
 <div id="dig${i}f" style="display:inline"><br>Off Refresh: <input id="rf${i}" type="checkbox" name="RF${i}"></div>
@@ -546,7 +560,103 @@ Length: <input type="number" name="XC${i}" id="xc${i}" class="l" min="1" max="65
 				}
 			}
 		}
-		function S(){
+		function pinDropdowns() {
+			let fields = ["IR","RL"]; // IR & relay
+			gId("btns").querySelectorAll('input[type="number"]').forEach((e)=>{fields.push(e.name);}) // buttons
+			for (let i of d.Sf.elements) {
+				if (i.type === "number" && fields.includes(i.name)) { //select all pin select elements
+					let v = parseInt(i.value);
+					let sel = addDropdown(i.name,0);
+					for (var j = -1; j <= d.max_gpio; j++) {
+						if (d.rsvd.includes(j)) continue;
+						let foundPin = d.um_p.indexOf(j);
+						let txt = (j === -1) ? "unused" : `${j}`;
+						if (foundPin >= 0 && j !== v) txt += ` used`; // already reserved pin
+						if (d.ro_gpio.includes(j)) txt += " (R/O)";
+						let opt = addOption(sel, txt, j);
+						if (j === v) opt.selected = true; // this is "our" pin
+						else if (d.um_p.includes(j)) opt.disabled = true; // someone else's pin
+					}
+				}
+			}
+			// update select options
+			d.Sf.querySelectorAll("select.pin").forEach((e)=>{pinUpd(e);});
+			// add dataset values for LED GPIO pins
+			d.Sf.querySelectorAll(".iST input.s[name^=L]").forEach((i)=>{
+				if (i.value!=="" && i.value>=0)
+					i.dataset.val = i.value;
+			});
+		}
+		function pinUpd(e) {
+			// update changed select options across all usermods
+			let oldV = parseInt(e.dataset.val);
+			e.dataset.val = e.value;
+			let txt = e.name;
+			let pins = [];
+			d.Sf.querySelectorAll(".iST input.s[name^=L]").forEach((i)=>{
+				if (i.value!=="" && i.value>=0 && i.max<255)
+					pins.push(i.value);
+			});
+			let selects = d.Sf.querySelectorAll("select.pin");
+			for (let sel of selects) {
+				if (sel == e) continue
+				Array.from(sel.options).forEach((i)=>{
+					let led = pins.includes(i.value);
+					if (!(i.value==oldV || i.value==e.value || led)) return;
+					if (i.value == -1) {
+						i.text = "unused";
+						return
+					}
+					i.text = i.value;
+					if (i.value==oldV) {
+						i.disabled = false;
+					}
+					if (i.value==e.value || led) {
+						i.disabled = true;
+						i.text += ` ${led?'LED':txt}`;
+					}
+					if (d.ro_gpio.includes(parseInt(i.value))) i.text += " (R/O)";
+				});
+			}
+		}
+		// https://stackoverflow.com/questions/39729741/javascript-change-input-text-to-select-option
+		function addDropdown(field) {
+			let sel = d.createElement('select');
+			sel.classList.add("pin");
+			let inp = d.getElementsByName(field)[0];
+			if (inp && inp.tagName === "INPUT" && (inp.type === "text" || inp.type === "number")) {  // may also use nodeName
+				let v = inp.value;
+				let n = inp.name;
+				// copy the existing input element's attributes to the new select element
+				for (var i = 0; i < inp.attributes.length; ++ i) {
+					var att = inp.attributes[i];
+					// type and value don't apply, so skip them
+					// ** you might also want to skip style, or others -- modify as needed **
+					if (att.name != 'type' && att.name != 'value' && att.name != 'class' && att.name != 'style') {
+						sel.setAttribute(att.name, att.value);
+					}
+				}
+				sel.setAttribute("data-val", v);
+				sel.setAttribute("onchange", "pinUpd(this)");
+				// finally, replace the old input element with the new select element
+				inp.parentElement.replaceChild(sel, inp);
+				return sel;
+			}
+			return null;
+		}
+		function addOption(sel,txt,val) {
+			if (sel===null) return; // select object missing
+			let opt = d.createElement("option");
+			opt.value = val;
+			opt.text = txt;
+			sel.appendChild(opt);
+			for (let i=0; i<sel.childNodes.length; i++) {
+				let c = sel.childNodes[i];
+				if (c.value == sel.dataset.val) sel.selectedIndex = i;
+			}
+			return opt;
+		}
+		function S() {
 			let l = window.location;
 			if (l.protocol == "file:") {
 				loc = true;
@@ -624,7 +734,7 @@ Length: <input type="number" name="XC${i}" id="xc${i}" class="l" min="1" max="65
 		<hr class="sml">
 		Make a segment for each output: <input type="checkbox" name="MS"><br>
 		Custom bus start indices: <input type="checkbox" onchange="tglSi(this.checked)" id="si"><br>
-		Use global LED buffer: <input type="checkbox" name="LD"><br>
+		Use global LED buffer: <input type="checkbox" name="LD" onchange="UI()"><br>
 		<hr class="sml">
 		<div id="color_order_mapping">
 			Color Order Override:

wled00/data/settings_um.htm

@@ -7,7 +7,7 @@
 	<title>Usermod Settings</title>
 	<script>
 	var d = document;
-	d.max_gpio = 39;
+	d.max_gpio = 50;
 	d.um_p = [];
 	d.rsvd = [];
 	d.ro_gpio = [];
@@ -39,6 +39,7 @@
 			d.Sf.MISO.max = d.max_gpio;
 			let inp = d.getElementsByTagName("input");
 			for (let i of inp) if (i.type === "number" && i.name.replace("[]","").substr(-3) === "pin") i.max = d.max_gpio;
+			pinDropdowns();
 		});
 		// error event
 		scE.addEventListener("error", (ev) => {
@@ -103,8 +104,10 @@
 		if (isO(o)) {
 			for (const [k,v] of Object.entries(o)) {
 				if (isO(v)) {
+					let oldO = owner; // keep parent name
 					owner = k;
 					getPins(v);
+					owner = oldO;
 					continue;
 				}
 				if (k.replace("[]","").substr(-3)=="pin") {
@@ -163,11 +166,67 @@
 			urows += `<input type="${t==="int"?"number":t}" name="${k}:${f}${a?"[]":""}" ${c} oninput="check(this,'${k.substr(k.indexOf(":")+1)}')"><br>`;
 		}
 	}
+	function pinDropdowns() {
+		for (let i of d.Sf.elements) {
+			if (i.type === "number" && (i.name.includes("pin") || ["SDA","SCL","MOSI","MISO","SCLK"].includes(i.name))) { //select all pin select elements
+				let v = parseInt(i.value);
+				let sel = addDropdown(i.name,0);
+				for (var j = -1; j <= d.max_gpio; j++) {
+					if (d.rsvd.includes(j)) continue;
+					let foundPin = pins.indexOf(j);
+					let txt = (j === -1) ? "unused" : `${j}`;
+					if (foundPin >= 0 && j !== v) txt += ` ${pinO[foundPin]=="if"?"global":pinO[foundPin]}`; // already reserved pin
+					if (d.ro_gpio.includes(j)) txt += " (R/O)";
+					let opt = addOption(sel, txt, j);
+					if (j === v) opt.selected = true; // this is "our" pin
+					else if (pins.includes(j)) opt.disabled = true; // someone else's pin
+				}
+			}
+		}
+	}
+	function UI(e) {
+		// update changed select options across all usermods
+		let oldV = parseInt(e.dataset.val);
+		e.dataset.val = e.value;
+		let txt = e.name.split(":")[e.name.split(":").length-2];
+		let selects = d.Sf.querySelectorAll("select[class='pin']");
+		for (let sel of selects) {
+			if (sel == e) continue
+			Array.from(sel.options).forEach((i)=>{
+				if (!(i.value==oldV || i.value==e.value)) return;
+				if (i.value == -1) {
+					i.text = "unused";
+					return
+				}
+				i.text = i.value;
+				if (i.value==oldV) {
+					i.disabled = false;
+				}
+				if (i.value==e.value) {
+					i.disabled = true;
+					i.text += ` ${txt}`;
+				}
+				if (d.ro_gpio.includes(parseInt(i.value))) i.text += " (R/O)";
+			});
+		}
+	}
 	// https://stackoverflow.com/questions/39729741/javascript-change-input-text-to-select-option
 	function addDropdown(um,fld) {
 		let sel = d.createElement('select');
-		let arr = d.getElementsByName(um+":"+fld);
+		if (typeof(fld) === "string") {	// parameter from usermod (field name)
-		let inp = arr[1]; // assume 1st field to be hidden (type)
+			if (fld.includes("pin")) sel.classList.add("pin");
+			um += ":"+fld;
+		} else if (typeof(fld) === "number") sel.classList.add("pin"); // a hack to add a class
+		let arr = d.getElementsByName(um);
+		let idx = arr[0].type==="hidden"?1:0; // ignore hidden field
+		if (arr.length > 2) {
+			// we have array of values (usually pins)
+			for (let i of arr) {
+				if (i.type === "number") break;
+				idx++;
+			}
+		}
+		let inp = arr[idx];
 		if (inp && inp.tagName === "INPUT" && (inp.type === "text" || inp.type === "number")) {  // may also use nodeName
 			let v = inp.value;
 			let n = inp.name;
@@ -181,8 +240,10 @@
 				}
 			}
 			sel.setAttribute("data-val", v);
+			sel.setAttribute("onchange", "UI(this)");
 			// finally, replace the old input element with the new select element
 			inp.parentElement.replaceChild(sel, inp);
+			if (arr[0].type==="hidden") arr[0].parentElement.removeChild(arr[0]); // remove hidden element from DOM
 			return sel;
 		}
 		return null;
@@ -197,6 +258,7 @@
 			let c = sel.childNodes[i];
 			if (c.value == sel.dataset.val) sel.selectedIndex = i;
 		}
+		return opt;
 	}
 	// https://stackoverflow.com/questions/26440494/insert-text-after-this-input-element-with-javascript
 	function addInfo(name,el,txt, txt2="") {
@@ -208,6 +270,10 @@
 			if (txt2!="") obj[el].insertAdjacentHTML('beforebegin', txt2 + '&nbsp;');  //add pre texts
 		}
 	}
+	// add Help Button
+	function addHB(um) {
+		addInfo(um + ':help',0,`<button onclick="location.href='https://kno.wled.ge/usermods/${um}'" type="button">?</button>`);
+	}
 	// load settings and insert values into DOM
 	function ldS() {
 		fetch(getURL('/cfg.json'), {

wled00/data/style.css

@@ -61,6 +61,9 @@ button.sml {
 .hide {
   display: none;
 }
+.err {
+  color: #f00;
+}
 .warn {
   color: #fa0;
 }
@@ -117,6 +120,10 @@ select {
   font-family: Verdana, sans-serif;
   border: 0.5ch solid #333;
 }
+select.pin {
+  max-width: 120px;
+  text-overflow: ellipsis;
+}
 tr {
   line-height: 100%;
 }

wled00/fcn_declare.h

@@ -50,6 +50,18 @@ bool getJsonValue(const JsonVariant& element, DestType& destination, const Defau
 
 
 //colors.cpp
+// similar to NeoPixelBus NeoGammaTableMethod but allows dynamic changes (superseded by NPB::NeoGammaDynamicTableMethod)
+class NeoGammaWLEDMethod {
+  public:
+    static uint8_t Correct(uint8_t value);      // apply Gamma to single channel
+    static uint32_t Correct32(uint32_t color);  // apply Gamma to RGBW32 color (WLED specific, not used by NPB)
+    static void calcGammaTable(float gamma);    // re-calculates & fills gamma table
+    static inline uint8_t rawGamma8(uint8_t val) { return gammaT[val]; }  // get value from Gamma table (WLED specific, not used by NPB)
+  private:
+    static uint8_t gammaT[];
+};
+#define gamma32(c) NeoGammaWLEDMethod::Correct32(c)
+#define gamma8(c)  NeoGammaWLEDMethod::rawGamma8(c)
 uint32_t color_blend(uint32_t,uint32_t,uint16_t,bool b16=false);
 uint32_t color_add(uint32_t,uint32_t);
 inline uint32_t colorFromRgbw(byte* rgbw) { return uint32_t((byte(rgbw[3]) << 24) | (byte(rgbw[0]) << 16) | (byte(rgbw[1]) << 8) | (byte(rgbw[2]))); }
@@ -63,10 +75,6 @@ bool colorFromHexString(byte* rgb, const char* in);
 uint32_t colorBalanceFromKelvin(uint16_t kelvin, uint32_t rgb);
 uint16_t approximateKelvinFromRGB(uint32_t rgb);
 void setRandomColor(byte* rgb);
-uint8_t gamma8_cal(uint8_t b, float gamma);
-void calcGammaTable(float gamma);
-uint8_t gamma8(uint8_t b);
-uint32_t gamma32(uint32_t);
 
 //dmx.cpp
 void initDMX();

wled00/led.cpp

@@ -37,8 +37,8 @@ void applyValuesToSelectedSegs()
 
     if (effectSpeed     != selsegPrev.speed)     {seg.speed     = effectSpeed;     stateChanged = true;}
     if (effectIntensity != selsegPrev.intensity) {seg.intensity = effectIntensity; stateChanged = true;}
-    if (effectPalette   != selsegPrev.palette)   {seg.palette   = effectPalette;   stateChanged = true;}
+    if (effectPalette   != selsegPrev.palette)   {seg.setPalette(effectPalette);   stateChanged = true;}
-    if (effectCurrent   != selsegPrev.mode)      {strip.setMode(i, effectCurrent); stateChanged = true;}
+    if (effectCurrent   != selsegPrev.mode)      {seg.setMode(effectCurrent);      stateChanged = true;}
     uint32_t col0 = RGBW32(   col[0],    col[1],    col[2],    col[3]);
     uint32_t col1 = RGBW32(colSec[0], colSec[1], colSec[2], colSec[3]);
     if (col0 != selsegPrev.colors[0])            {seg.setColor(0, col0);           stateChanged = true;}

wled00/set.cpp

@@ -233,7 +233,7 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
     gammaCorrectCol = request->hasArg(F("GC"));
     gammaCorrectVal = request->arg(F("GV")).toFloat();
     if (gammaCorrectVal > 1.0f && gammaCorrectVal <= 3)
-      calcGammaTable(gammaCorrectVal);
+      NeoGammaWLEDMethod::calcGammaTable(gammaCorrectVal);
     else {
       gammaCorrectVal = 1.0f; // no gamma correction
       gammaCorrectBri = false;

wled00/xml.cpp

@@ -197,7 +197,7 @@ void appendGPIOinfo() {
   #elif defined(CONFIG_IDF_TARGET_ESP32C3)
   oappend(SET_F("d.rsvd=[11,12,13,14,15,16,17"));
   #elif defined(ESP32)
-  oappend(SET_F("d.rsvd=[6,7,8,9,10,11,24,28,29,30,31"));
+  oappend(SET_F("d.rsvd=[6,7,8,9,10,11,24,28,29,30,31,37,38"));
   #else
   oappend(SET_F("d.rsvd=[6,7,8,9,10,11"));
   #endif