From c1cab30daf2b826907d8ede0e9fb0229084c7501 Mon Sep 17 00:00:00 2001
From: cschwinne <dev.aircoookie@gmail.com>
Date: Fri, 7 Aug 2020 00:50:19 +0200
Subject: [PATCH] Added `mi` property to APIs

---
 CHANGELOG.md      | 7 +++++++
 wled00/FX.h       | 5 ++---
 wled00/FX_fcn.cpp | 8 +++++---
 wled00/json.cpp   | 8 +++++---
 wled00/set.cpp    | 4 ++++
 5 files changed, 23 insertions(+), 9 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index b02aef1f..95cf9e02 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 ### Development versions after 0.10.0 release
 
+#### Build 2008070
+
+-   Added segment mirroring (`mi` property) (#1017)
+-   Fixed DMX settings page not displayed (#1070)
+-   Fixed ArtNet multi universe and improve code style (#1076)
+-   Renamed global var `local` to `localTime` (#1078)
+
 #### Build 2007190
 
 -   Fixed hostname containing illegal characters (#1035)
diff --git a/wled00/FX.h b/wled00/FX.h
index da8a6942..27b35f01 100644
--- a/wled00/FX.h
+++ b/wled00/FX.h
@@ -267,10 +267,9 @@ class WS2812FX {
       uint16_t virtualLength()
       {
         uint16_t groupLen = groupLength();
-        uint16_t vLength;
-        vLength = (length() + groupLen - 1) / groupLen;
+        uint16_t vLength = (length() + groupLen - 1) / groupLen;
         if (options & MIRROR)
-          vLength /= 2;  // divide by 2 if mirror; leaves a blank LED in the middle if length is odd
+          vLength = (vLength + 1) /2;  // divide by 2 if mirror, leave at least a signle LED
         return vLength;
       }
     } segment;
diff --git a/wled00/FX_fcn.cpp b/wled00/FX_fcn.cpp
index 464e9d2a..2e49f1d4 100644
--- a/wled00/FX_fcn.cpp
+++ b/wled00/FX_fcn.cpp
@@ -180,9 +180,11 @@ void WS2812FX::setPixelColor(uint16_t i, byte r, byte g, byte b, byte w)
       #ifdef WLED_CUSTOM_LED_MAPPING
       if (indexSet < customMappingSize) indexSet = customMappingTable[indexSet];
       #endif
-      if (indexSetRev >= SEGMENT.start && indexSetRev < SEGMENT.stop) bus->SetPixelColor(indexSet + skip, col);
-      if (IS_MIRROR)  //set the corresponding mirrored pixel
-        bus->SetPixelColor(SEGMENT.stop - (indexSet + skip) + SEGMENT.start - 1, col);
+      if (indexSetRev >= SEGMENT.start && indexSetRev < SEGMENT.stop) {
+        bus->SetPixelColor(indexSet + skip, col);
+        if (IS_MIRROR)  //set the corresponding mirrored pixel
+          bus->SetPixelColor(SEGMENT.stop - (indexSet + skip) + SEGMENT.start - 1, col);
+      }
     }
   } else { //live data, etc.
     if (reverseMode) i = _length - 1 - i;
diff --git a/wled00/json.cpp b/wled00/json.cpp
index 0a64f192..40dd3f24 100644
--- a/wled00/json.cpp
+++ b/wled00/json.cpp
@@ -59,6 +59,7 @@ void deserializeSegment(JsonObject elem, byte it)
     //if (pal != seg.palette && pal < strip.getPaletteCount()) strip.setPalette(pal);
     seg.setOption(SEG_OPTION_SELECTED, elem["sel"] | seg.getOption(SEG_OPTION_SELECTED));
     seg.setOption(SEG_OPTION_REVERSED, elem["rev"] | seg.getOption(SEG_OPTION_REVERSED));
+    seg.setOption(SEG_OPTION_MIRROR  , elem["mi"]  | seg.getOption(SEG_OPTION_MIRROR  ));
 
     //temporary, strip object gets updated via colorUpdated()
     if (id == strip.getMainSegmentId()) {
@@ -215,12 +216,13 @@ void serializeSegment(JsonObject& root, WS2812FX::Segment& seg, byte id)
     }
 	}
 
-	root["fx"] = seg.mode;
-	root["sx"] = seg.speed;
-	root["ix"] = seg.intensity;
+	root["fx"]  = seg.mode;
+	root["sx"]  = seg.speed;
+	root["ix"]  = seg.intensity;
 	root["pal"] = seg.palette;
 	root["sel"] = seg.isSelected();
 	root["rev"] = seg.getOption(SEG_OPTION_REVERSED);
+  root["mi"]  = seg.getOption(SEG_OPTION_MIRROR);
 }
 
 
diff --git a/wled00/set.cpp b/wled00/set.cpp
index 66dbb753..763162f1 100644
--- a/wled00/set.cpp
+++ b/wled00/set.cpp
@@ -647,6 +647,10 @@ bool handleSet(AsyncWebServerRequest *request, const String& req)
   pos = req.indexOf("RV=");
   if (pos > 0) strip.getSegment(main).setOption(SEG_OPTION_REVERSED, req.charAt(pos+3) != '0');
 
+  //Segment reverse
+  pos = req.indexOf("MI=");
+  if (pos > 0) strip.getSegment(main).setOption(SEG_OPTION_MIRROR, req.charAt(pos+3) != '0');
+
   //Segment brightness/opacity
   pos = req.indexOf("SB=");
   if (pos > 0) {