✨ Mixer Presets (MarlinFirmware#21562)

Marlin/src/feature/mixing.cpp

@@ -106,11 +106,32 @@ void Mixer::reset_vtools() {
  MIXER_STEPPER_LOOP(i)
  color[t][i] = (i == 0) ? COLOR_A_MASK : 0;
  #endif
+
+ // MIXING_PRESETS: Set a variety of obvious mixes as presets
+ #if ENABLED(MIXING_PRESETS) && WITHIN(MIXING_STEPPERS, 2, 3)
+ #if MIXING_STEPPERS == 2
+ if (MIXING_VIRTUAL_TOOLS > 2) { collector[0] = 1; collector[1] = 1; mixer.normalize(2); } // 1:1
+ if (MIXING_VIRTUAL_TOOLS > 3) { collector[0] = 3; mixer.normalize(3); } // 3:1
+ if (MIXING_VIRTUAL_TOOLS > 4) { collector[0] = 1; collector[1] = 3; mixer.normalize(4); } // 1:3
+ if (MIXING_VIRTUAL_TOOLS > 5) { collector[1] = 2; mixer.normalize(5); } // 1:2
+ if (MIXING_VIRTUAL_TOOLS > 6) { collector[0] = 2; collector[1] = 1; mixer.normalize(6); } // 2:1
+ if (MIXING_VIRTUAL_TOOLS > 7) { collector[0] = 3; collector[1] = 2; mixer.normalize(7); } // 3:2
+ #else
+ if (MIXING_VIRTUAL_TOOLS > 3) { collector[0] = 1; collector[1] = 1; collector[2] = 1; mixer.normalize(3); } // 1:1:1
+ if (MIXING_VIRTUAL_TOOLS > 4) { collector[1] = 3; collector[2] = 0; mixer.normalize(4); } // 1:3:0
+ if (MIXING_VIRTUAL_TOOLS > 5) { collector[0] = 0; collector[2] = 1; mixer.normalize(5); } // 0:3:1
+ if (MIXING_VIRTUAL_TOOLS > 6) { collector[1] = 1; mixer.normalize(6); } // 0:1:1
+ if (MIXING_VIRTUAL_TOOLS > 7) { collector[0] = 1; collector[2] = 0; mixer.normalize(7); } // 1:1:0
+ #endif
+ ZERO(collector);
+ #endif
 }
 
 // called at boot
 void Mixer::init() {
 
+ ZERO(collector);
+
  reset_vtools();
 
  #if HAS_MIXER_SYNC_CHANNEL
@@ -119,8 +140,6 @@ void Mixer::init() {
  color[MIXER_AUTORETRACT_TOOL][i] = COLOR_A_MASK;
  #endif
 
- ZERO(collector);
-
  #if EITHER(HAS_DUAL_MIXING, GRADIENT_MIX)
  update_mix_from_vtool();
  #endif