Added Gamma correction

TODO.txt

@@ -9,7 +9,14 @@ add preferred colors to settings -> quickly t. UI, button select,
 use iframe for settings, seperate tabs for wifi and application confg
 use iframe for all adv. features?
 /dumpeeprom and /pusheeprom (ota lock!)
-aux trigger pin
+(aux trigger pin) partially impl.
+get NTP working
+audioWLED
+	Broadcast
+	Less traffic (distr. and scroll proc. on module)
+	Make webserver accessible while receiving
+	More modes?
+
 randomizer
 ir, touch, pin input
 Automations
@@ -36,5 +43,6 @@ toggle notifier
 var. brightness
 
 BUGS
+NTP crash (1-48h)
 static ip disables mdns
 ? authentification for security relevant areas ([/settings, /reset])

wled00/data/index.htm

@@ -31,7 +31,7 @@
 				}
 			}
 			// send HTTP request
-			request.open("GET", "ajax_in/" + strA + strR + strG + strB + nocache, true);
+			request.open("GET", "win/" + strA + strR + strG + strB + nocache, true);
 			request.send(null);
 			strA = "";
 			strR = "";

wled00/data/settings.htm

@@ -38,6 +38,8 @@
 							document.S_form.CLDFA.value = this.responseXML.getElementsByTagName('cldfa')[0].innerHTML;
 							document.S_form.FXDEF.value = this.responseXML.getElementsByTagName('fxdef')[0].innerHTML;
 							document.S_form.SXDEF.value = this.responseXML.getElementsByTagName('sxdef')[0].innerHTML;
+							document.S_form.GCBRI.checked = (this.responseXML.getElementsByTagName('gcbri')[0].innerHTML)!=0?true:false;
+							document.S_form.GCRGB.checked = (this.responseXML.getElementsByTagName('gcrgb')[0].innerHTML)!=0?true:false;
 							document.S_form.BTNON.checked = (this.responseXML.getElementsByTagName('btnon')[0].innerHTML)!=0?true:false;
 							document.S_form.TFADE.checked = (this.responseXML.getElementsByTagName('tfade')[0].innerHTML)!=0?true:false;
 							document.S_form.TDLAY.value = this.responseXML.getElementsByTagName('tdlay')[0].innerHTML;
@@ -122,6 +124,8 @@
 		Default effect ID: <input name="FXDEF" maxlength="3" size="2"> <br>
 		Default effect speed: <input name="SXDEF" maxlength="3" size="2"> <br>
 		Ignore and use current color, brightness and effects: <input type="checkbox" name="CBEOR" value="0"> <br>
+		Use Gamma correction for brightness: <input type="checkbox" name="GCBRI" value="0"> <br>
+		Use Gamma correction for color: <input type="checkbox" name="GCRGB" value="0"> <br>
 		Brightness factor: <input name="NRBRI" maxlength="3" size="2"> % <br>
 		<h3>Button setup</h3>
 		On/Off button enabled: <input type="checkbox" name="BTNON" value="0"> <br>

wled00/wled00.ino

@@ -92,6 +92,8 @@ boolean nixieClockDisplaySeconds = false;
 boolean nixieClock12HourFormat = false;
 boolean overlayReverse = true;
 uint8_t overlaySpeed = 200;
+boolean useGammaCorrectionBri = true;
+boolean useGammaCorrectionRGB = true;
 
 double transitionResolution = 0.011;
 
@@ -155,6 +157,24 @@ int lastWifiState = 3;
 long wifiStateChangedTime = 0;
 #endif
 
+const uint8_t gamma8[] = {
+    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,
+    2,  3,  3,  3,  3,  3,  3,  3,  4,  4,  4,  4,  4,  5,  5,  5,
+    5,  6,  6,  6,  6,  7,  7,  7,  7,  8,  8,  8,  9,  9,  9, 10,
+   10, 10, 11, 11, 11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 16, 16,
+   17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 24, 24, 25,
+   25, 26, 27, 27, 28, 29, 29, 30, 31, 32, 32, 33, 34, 35, 35, 36,
+   37, 38, 39, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 50,
+   51, 52, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 66, 67, 68,
+   69, 70, 72, 73, 74, 75, 77, 78, 79, 81, 82, 83, 85, 86, 87, 89,
+   90, 92, 93, 95, 96, 98, 99,101,102,104,105,107,109,110,112,114,
+  115,117,119,120,122,124,126,127,129,131,133,135,137,138,140,142,
+  144,146,148,150,152,154,156,158,160,162,164,167,169,171,173,175,
+  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 };
+
 void down()
 {
   bri_t = 0;

wled00/wled01_eeprom.ino

@@ -88,6 +88,8 @@ void saveSettingsToEEPROM()
   EEPROM.write(327, ntpEnabled);
   //328 reserved for timezone setting
   //329 reserved for dst setting
+  EEPROM.write(330, useGammaCorrectionBri);
+  EEPROM.write(331, useGammaCorrectionRGB);
   EEPROM.commit();
 }
 
@@ -179,4 +181,6 @@ void loadSettingsFromEEPROM()
   effectDefault = EEPROM.read(324); effectCurrent = effectDefault;
   effectSpeedDefault = EEPROM.read(325); effectSpeed = effectSpeedDefault;
   ntpEnabled = EEPROM.read(327);
+  useGammaCorrectionBri = EEPROM.read(330);
+  useGammaCorrectionRGB = EEPROM.read(331);
 }

wled00/wled02_xml.ino

@@ -115,6 +115,11 @@ void XML_response_settings()
   resp = resp + "<sxdef>";
   resp = resp + effectSpeedDefault;
   resp = resp + "</sxdef>";
+  resp = resp + "<gcbri>";
+  resp = resp + bool2int(useGammaCorrectionBri);
+  resp = resp + "</gcbri><gcrgb>";
+  resp = resp + bool2int(useGammaCorrectionRGB);
+  resp = resp + "</gcrgb>";
   resp = resp + "<btnon>";
   resp = resp + bool2int(buttonEnabled);
   resp = resp + "</btnon><tfade>";

wled00/wled03_set.ino

@@ -138,6 +138,8 @@ void handleSettingsSet()
       if (i >= 0 && i <= 255) effectSpeedDefault = i;
     }
   }
+  useGammaCorrectionBri = server.hasArg("GCBRI");
+  useGammaCorrectionRGB = server.hasArg("GCRGB");
   buttonEnabled = server.hasArg("BTNON");
   fadeTransition = server.hasArg("TFADE");
   if (server.hasArg("TDLAY"))
@@ -194,7 +196,7 @@ void handleSettingsSet()
 boolean handleSet(String req)
 {
    boolean effectUpdated = false;
-   if (!(req.indexOf("ajax_in") >= 0)) {
+   if (!(req.indexOf("win") >= 0)) {
         if (req.indexOf("get-settings") >= 0)
         {
           XML_response_settings();

wled00/wled07_notify.ino

@@ -75,11 +75,16 @@ void handleNotifications()
           for (int i = 2; i < packetSize -3; i += 4)
           {
             if (udpIn[i] < LEDCOUNT)
+            if (useGammaCorrectionRGB)
+            {
+              strip.setIndividual(udpIn[i], ((uint32_t)gamma8[udpIn[i+1]] << 16) | ((uint32_t)gamma8[udpIn[i+2]] << 8) | gamma8[udpIn[i+3]]);
+            } else {
               strip.setIndividual(udpIn[i], ((uint32_t)udpIn[i+1] << 16) | ((uint32_t)udpIn[i+2] << 8) | udpIn[i+3]);
             }
           }
         }
       }
+    }
     if (arlsTimeout && millis() > arlsTimeoutTime)
     {
       strip.unlockAll();

wled00/wled08_led.ino

@@ -5,8 +5,18 @@
 void setAllLeds() {
   double d = bri_t*bri_n;
   int val = d/100;
+  if (useGammaCorrectionBri)
+  {
+    strip.setBrightness(gamma8[val]);
+  } else {
     strip.setBrightness(val);
+  }
+  if (useGammaCorrectionBri)
+  {
+    strip.setColor(gamma8[col_t[0]], gamma8[col_t[1]], gamma8[col_t[2]]);
+  } else {
     strip.setColor(col_t[0], col_t[1], col_t[2]);
+  }
 }
 
 void setLedsStandard()