From 74bc159a522a14f947e2b66288996a20a2e229e5 Mon Sep 17 00:00:00 2001
From: gaaat <gaaat@example.com>
Date: Mon, 29 Apr 2024 20:19:10 +0200
Subject: [PATCH] enabled some audioreactive effects for single pixel
 strips/segments

---
 wled00/FX.cpp | 43 +++++++++++++++++++++++++++----------------
 1 file changed, 27 insertions(+), 16 deletions(-)

diff --git a/wled00/FX.cpp b/wled00/FX.cpp
index 5592f7ba8d..3110ab910a 100644
--- a/wled00/FX.cpp
+++ b/wled00/FX.cpp
@@ -6643,7 +6643,7 @@ static const char _data_FX_MODE_GRAVIMETER[] PROGMEM = "Gravimeter@Rate of fall,
 //   * JUGGLES      //
 //////////////////////
 uint16_t mode_juggles(void) {                   // Juggles. By Andrew Tuline.
-  if (SEGLEN == 1) return mode_static();
+  //if (SEGLEN == 1) return mode_static();
   um_data_t *um_data;
   if (!usermods.getUMData(&um_data, USERMOD_ID_AUDIOREACTIVE)) {
     // add support for no audio
@@ -6655,12 +6655,13 @@ uint16_t mode_juggles(void) {                   // Juggles. By Andrew Tuline.
   uint16_t my_sampleAgc = fmax(fmin(volumeSmth, 255.0), 0);
 
   for (size_t i=0; i<SEGMENT.intensity/32+1U; i++) {
+    // if SEGLEN equals 1, we will always set color to the first and only pixel, but the effect is still good looking
     SEGMENT.setPixelColor(beatsin16(SEGMENT.speed/4+i*2,0,SEGLEN-1), color_blend(SEGCOLOR(1), SEGMENT.color_from_palette(strip.now/4+i*2, false, PALETTE_SOLID_WRAP, 0), my_sampleAgc));
   }
 
   return FRAMETIME;
 } // mode_juggles()
-static const char _data_FX_MODE_JUGGLES[] PROGMEM = "Juggles@!,# of balls;!,!;!;1v;m12=0,si=0"; // Pixels, Beatsin
+static const char _data_FX_MODE_JUGGLES[] PROGMEM = "Juggles@!,# of balls;!,!;!;01v;m12=0,si=0"; // Pixels, Beatsin
 
 
 //////////////////////
@@ -6761,7 +6762,7 @@ uint16_t mode_noisefire(void) {                 // Noisefire. By Andrew Tuline.
 
   return FRAMETIME;
 } // mode_noisefire()
-static const char _data_FX_MODE_NOISEFIRE[] PROGMEM = "Noisefire@!,!;;;1v;m12=2,si=0"; // Circle, Beatsin
+static const char _data_FX_MODE_NOISEFIRE[] PROGMEM = "Noisefire@!,!;;;01v;m12=2,si=0"; // Circle, Beatsin
 
 
 ///////////////////////
@@ -6871,7 +6872,7 @@ uint16_t mode_plasmoid(void) {                  // Plasmoid. By Andrew Tuline.
 
   return FRAMETIME;
 } // mode_plasmoid()
-static const char _data_FX_MODE_PLASMOID[] PROGMEM = "Plasmoid@Phase,# of pixels;!,!;!;1v;sx=128,ix=128,m12=0,si=0"; // Pixels, Beatsin
+static const char _data_FX_MODE_PLASMOID[] PROGMEM = "Plasmoid@Phase,# of pixels;!,!;!;01v;sx=128,ix=128,m12=0,si=0"; // Pixels, Beatsin
 
 
 ///////////////////////
@@ -7026,7 +7027,8 @@ static const char _data_FX_MODE_BLURZ[] PROGMEM = "Blurz@Fade rate,Blur;!,Color
 //   ** DJLight        //
 /////////////////////////
 uint16_t mode_DJLight(void) {                   // Written by ??? Adapted by Will Tatam.
-  if (SEGLEN == 1) return mode_static();
+  //if (SEGLEN == 1) return mode_static();
+  // No need to prevent from executing on single led strips, only mid will be set (mid = 0)
   const int mid = SEGLEN / 2;
 
   um_data_t *um_data;
@@ -7047,13 +7049,14 @@ uint16_t mode_DJLight(void) {                   // Written by ??? Adapted by Wil
     CRGB color = CRGB(fftResult[15]/2, fftResult[5]/2, fftResult[0]/2); // 16-> 15 as 16 is out of bounds
     SEGMENT.setPixelColor(mid, color.fadeToBlackBy(map(fftResult[4], 0, 255, 255, 4)));     // TODO - Update
 
+    // if SEGLEN equals 1 these loops won't execute
     for (int i = SEGLEN - 1; i > mid; i--)   SEGMENT.setPixelColor(i, SEGMENT.getPixelColor(i-1)); // move to the left
     for (int i = 0; i < mid; i++)            SEGMENT.setPixelColor(i, SEGMENT.getPixelColor(i+1)); // move to the right
   }
 
   return FRAMETIME;
 } // mode_DJLight()
-static const char _data_FX_MODE_DJLIGHT[] PROGMEM = "DJ Light@Speed;;;1f;m12=2,si=0"; // Circle, Beatsin
+static const char _data_FX_MODE_DJLIGHT[] PROGMEM = "DJ Light@Speed;;;01f;m12=2,si=0"; // Circle, Beatsin
 
 
 ////////////////////
@@ -7097,7 +7100,8 @@ static const char _data_FX_MODE_FREQMAP[] PROGMEM = "Freqmap@Fade rate,Starting
 //   ** Freqmatrix   //
 ///////////////////////
 uint16_t mode_freqmatrix(void) {                // Freqmatrix. By Andreas Pleschung.
-  if (SEGLEN == 1) return mode_static();
+  //if (SEGLEN == 1) return mode_static();
+  // No need to prevent from executing on single led strips, we simply change pixel 0 each time and avoid the shift
   um_data_t *um_data;
   if (!usermods.getUMData(&um_data, USERMOD_ID_AUDIOREACTIVE)) {
     // add support for no audio
@@ -7140,12 +7144,13 @@ uint16_t mode_freqmatrix(void) {                // Freqmatrix. By Andreas Plesch
 
     // shift the pixels one pixel up
     SEGMENT.setPixelColor(0, color);
+    // if SEGLEN equals 1 this loop won't execute
     for (int i = SEGLEN - 1; i > 0; i--) SEGMENT.setPixelColor(i, SEGMENT.getPixelColor(i-1)); //move to the left
   }
 
   return FRAMETIME;
 } // mode_freqmatrix()
-static const char _data_FX_MODE_FREQMATRIX[] PROGMEM = "Freqmatrix@Speed,Sound effect,Low bin,High bin,Sensitivity;;;1f;m12=3,si=0"; // Corner, Beatsin
+static const char _data_FX_MODE_FREQMATRIX[] PROGMEM = "Freqmatrix@Speed,Sound effect,Low bin,High bin,Sensitivity;;;01f;m12=3,si=0"; // Corner, Beatsin
 
 
 //////////////////////
@@ -7202,7 +7207,8 @@ static const char _data_FX_MODE_FREQPIXELS[] PROGMEM = "Freqpixels@Fade rate,Sta
 // As a compromise between speed and accuracy we are currently sampling with 10240Hz, from which we can then determine with a 512bin FFT our max frequency is 5120Hz.
 // Depending on the music stream you have you might find it useful to change the frequency mapping.
 uint16_t mode_freqwave(void) {                  // Freqwave. By Andreas Pleschung.
-  if (SEGLEN == 1) return mode_static();
+  //if (SEGLEN == 1) return mode_static();
+  // As before, this effect can also work on single pixels, we just lose the shifting effect
   um_data_t *um_data;
   if (!usermods.getUMData(&um_data, USERMOD_ID_AUDIOREACTIVE)) {
     // add support for no audio
@@ -7246,13 +7252,14 @@ uint16_t mode_freqwave(void) {                  // Freqwave. By Andreas Pleschun
     SEGMENT.setPixelColor(SEGLEN/2, color);
 
     // shift the pixels one pixel outwards
+    // if SEGLEN equals 1 these loops won't execute
     for (int i = SEGLEN - 1; i > SEGLEN/2; i--)   SEGMENT.setPixelColor(i, SEGMENT.getPixelColor(i-1)); //move to the left
     for (int i = 0; i < SEGLEN/2; i++)            SEGMENT.setPixelColor(i, SEGMENT.getPixelColor(i+1)); // move to the right
   }
 
   return FRAMETIME;
 } // mode_freqwave()
-static const char _data_FX_MODE_FREQWAVE[] PROGMEM = "Freqwave@Speed,Sound effect,Low bin,High bin,Pre-amp;;;1f;m12=2,si=0"; // Circle, Beatsin
+static const char _data_FX_MODE_FREQWAVE[] PROGMEM = "Freqwave@Speed,Sound effect,Low bin,High bin,Pre-amp;;;01f;m12=2,si=0"; // Circle, Beatsin
 
 
 ///////////////////////
@@ -7311,7 +7318,7 @@ static const char _data_FX_MODE_GRAVFREQ[] PROGMEM = "Gravfreq@Rate of fall,Sens
 //   ** Noisemove   //
 //////////////////////
 uint16_t mode_noisemove(void) {                 // Noisemove.    By: Andrew Tuline
-  if (SEGLEN == 1) return mode_static();
+  //if (SEGLEN == 1) return mode_static();
   um_data_t *um_data;
   if (!usermods.getUMData(&um_data, USERMOD_ID_AUDIOREACTIVE)) {
     // add support for no audio
@@ -7325,20 +7332,21 @@ uint16_t mode_noisemove(void) {                 // Noisemove.    By: Andrew Tuli
   uint8_t numBins = map(SEGMENT.intensity,0,255,0,16);    // Map slider to fftResult bins.
   for (int i=0; i<numBins; i++) {                         // How many active bins are we using.
     uint16_t locn = inoise16(strip.now*SEGMENT.speed+i*50000, strip.now*SEGMENT.speed);   // Get a new pixel location from moving noise.
+    // if SEGLEN equals 1 locn will be always 0, hence we set the first pixel only
     locn = map(locn, 7500, 58000, 0, SEGLEN-1);           // Map that to the length of the strand, and ensure we don't go over.
     SEGMENT.setPixelColor(locn, color_blend(SEGCOLOR(1), SEGMENT.color_from_palette(i*64, false, PALETTE_SOLID_WRAP, 0), fftResult[i % 16]*4));
   }
 
   return FRAMETIME;
 } // mode_noisemove()
-static const char _data_FX_MODE_NOISEMOVE[] PROGMEM = "Noisemove@Speed of perlin movement,Fade rate;!,!;!;1f;m12=0,si=0"; // Pixels, Beatsin
+static const char _data_FX_MODE_NOISEMOVE[] PROGMEM = "Noisemove@Speed of perlin movement,Fade rate;!,!;!;01f;m12=0,si=0"; // Pixels, Beatsin
 
 
 //////////////////////
 //   ** Rocktaves   //
 //////////////////////
 uint16_t mode_rocktaves(void) {                 // Rocktaves. Same note from each octave is same colour.    By: Andrew Tuline
-  if (SEGLEN == 1) return mode_static();
+  //if (SEGLEN == 1) return mode_static();
   um_data_t *um_data;
   if (!usermods.getUMData(&um_data, USERMOD_ID_AUDIOREACTIVE)) {
     // add support for no audio
@@ -7366,12 +7374,13 @@ uint16_t mode_rocktaves(void) {                 // Rocktaves. Same note from eac
   frTemp  = fabsf(frTemp * 2.1f);                         // Fudge factors to compress octave range starting at 0 and going to 255;
 
   uint16_t i = map(beatsin8(8+octCount*4, 0, 255, 0, octCount*8), 0, 255, 0, SEGLEN-1);
+  // i will be always constrained between 0 and 0 if SEGLEN equals 1
   i = constrain(i, 0, SEGLEN-1);
   SEGMENT.addPixelColor(i, color_blend(SEGCOLOR(1), SEGMENT.color_from_palette((uint8_t)frTemp, false, PALETTE_SOLID_WRAP, 0), volTemp));
 
   return FRAMETIME;
 } // mode_rocktaves()
-static const char _data_FX_MODE_ROCKTAVES[] PROGMEM = "Rocktaves@;!,!;!;1f;m12=1,si=0"; // Bar, Beatsin
+static const char _data_FX_MODE_ROCKTAVES[] PROGMEM = "Rocktaves@;!,!;!;01f;m12=1,si=0"; // Bar, Beatsin
 
 
 ///////////////////////
@@ -7379,7 +7388,8 @@ static const char _data_FX_MODE_ROCKTAVES[] PROGMEM = "Rocktaves@;!,!;!;1f;m12=1
 ///////////////////////
 // Combines peak detection with FFT_MajorPeak and FFT_Magnitude.
 uint16_t mode_waterfall(void) {                   // Waterfall. By: Andrew Tuline
-  if (SEGLEN == 1) return mode_static();
+  //if (SEGLEN == 1) return mode_static();
+  // effect can work on single pixels, we just lose the shifting effect
 
   um_data_t *um_data;
   if (!usermods.getUMData(&um_data, USERMOD_ID_AUDIOREACTIVE)) {
@@ -7417,12 +7427,13 @@ uint16_t mode_waterfall(void) {                   // Waterfall. By: Andrew Tulin
     } else {
       SEGMENT.setPixelColor(SEGLEN-1, color_blend(SEGCOLOR(1), SEGMENT.color_from_palette(pixCol+SEGMENT.intensity, false, PALETTE_SOLID_WRAP, 0), (int)my_magnitude));
     }
+    // loop will not execute if SEGLEN equals 1
     for (int i = 0; i < SEGLEN-1; i++) SEGMENT.setPixelColor(i, SEGMENT.getPixelColor(i+1)); // shift left
   }
 
   return FRAMETIME;
 } // mode_waterfall()
-static const char _data_FX_MODE_WATERFALL[] PROGMEM = "Waterfall@!,Adjust color,Select bin,Volume (min);!,!;!;1f;c2=0,m12=2,si=0"; // Circles, Beatsin
+static const char _data_FX_MODE_WATERFALL[] PROGMEM = "Waterfall@!,Adjust color,Select bin,Volume (min);!,!;!;01f;c2=0,m12=2,si=0"; // Circles, Beatsin
 
 
 #ifndef WLED_DISABLE_2D