From 13dd7f34079f9ef752f03a5d1ea7892c66564fd3 Mon Sep 17 00:00:00 2001
From: Frank <91616163+softhack007@users.noreply.github.com>
Date: Wed, 17 Jul 2024 12:44:35 +0200
Subject: [PATCH] fixing a possible drawLine with x < 0 in GEQ 3D

---
 wled00/FX.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/wled00/FX.cpp b/wled00/FX.cpp
index 91e52099..b0e46366 100644
--- a/wled00/FX.cpp
+++ b/wled00/FX.cpp
@@ -8464,7 +8464,7 @@ uint16_t mode_GEQLASER(void) {
 
     if (heights[i] > 1) {
       ledColorTemp = color_fade(ledColor,32,true);
-      int pPos = linex+(cols/NUM_BANDS)-1;
+      int pPos = max(0, linex+(cols/NUM_BANDS)-1);
       for (int y = (i<NUM_BANDS-1) ? heights[i+1] : 0; y <= heights[i]; y++) { // don't bother drawing what we'll hide anyway
         if (rows-y > 0) SEGMENT.drawLine(pPos,rows-y-1,*projector,horizon,ledColorTemp,false,depth); // right side perspective
       } 
@@ -8486,7 +8486,7 @@ uint16_t mode_GEQLASER(void) {
     uint16_t colorIndex = map(cols/NUM_BANDS*i, 0, cols-1, 0, 255);
     uint32_t ledColor = SEGMENT.color_from_palette(colorIndex, false, PALETTE_SOLID_WRAP, 0);
     int linex = i*(cols/NUM_BANDS);
-    int pPos = linex+(cols/NUM_BANDS)-1;
+    int pPos = max(0, linex+(cols/NUM_BANDS)-1);
 
     if (heights[i] > 1) {
       ledColorTemp = color_fade(ledColor,32,true);