Firmware2/Marlin/src/feature/mixing.cpp

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/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "../inc/MarlinConfig.h"
#if ENABLED(MIXING_EXTRUDER)
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//#define MIXER_NORMALIZER_DEBUG
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#include "mixing.h"
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Mixer mixer;
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#ifdef MIXER_NORMALIZER_DEBUG
#include "../core/serial.h"
#endif
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// Used up to Planner level
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uint_fast8_t Mixer::selected_vtool = 0;
float Mixer::collector[MIXING_STEPPERS]; // mix proportion. 0.0 = off, otherwise <= COLOR_A_MASK.
mixer_comp_t Mixer::color[NR_MIXING_VIRTUAL_TOOLS][MIXING_STEPPERS];
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// Used in Stepper
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int_fast8_t Mixer::runner = 0;
mixer_comp_t Mixer::s_color[MIXING_STEPPERS];
mixer_accu_t Mixer::accu[MIXING_STEPPERS] = { 0 };
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void Mixer::normalize(const uint8_t tool_index) {
float cmax = 0;
#ifdef MIXER_NORMALIZER_DEBUG
float csum = 0;
#endif
MIXER_STEPPER_LOOP(i) {
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const float v = collector[i];
NOLESS(cmax, v);
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#ifdef MIXER_NORMALIZER_DEBUG
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csum += v;
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#endif
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}
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#ifdef MIXER_NORMALIZER_DEBUG
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SERIAL_ECHOPGM("Mixer: Old relation : [ ");
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MIXER_STEPPER_LOOP(i) {
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SERIAL_ECHO_F(collector[i] / csum, 3);
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SERIAL_CHAR(' ');
}
SERIAL_ECHOPGM("]\n");
#endif
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// Scale all values so their maximum is COLOR_A_MASK
const float inverse_max = RECIPROCAL(cmax);
MIXER_STEPPER_LOOP(i)
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color[tool_index][i] = collector[i] * COLOR_A_MASK * inverse_max;
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#ifdef MIXER_NORMALIZER_DEBUG
csum = 0;
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SERIAL_ECHOPGM("Mixer: Normalize to : [ ");
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MIXER_STEPPER_LOOP(i) {
SERIAL_ECHO(uint16_t(color[tool_index][i]));
SERIAL_CHAR(' ');
csum += color[tool_index][i];
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}
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SERIAL_ECHOLNPGM("]");
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SERIAL_ECHOPGM("Mixer: New relation : [ ");
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MIXER_STEPPER_LOOP(i) {
SERIAL_ECHO_F(uint16_t(color[tool_index][i]) / csum, 3);
SERIAL_CHAR(' ');
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}
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SERIAL_ECHOLNPGM("]");
#endif
}
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void Mixer::reset_vtools() {
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// Virtual Tools 0, 1, 2, 3 = Filament 1, 2, 3, 4, etc.
// Every virtual tool gets a pure filament
for (uint8_t t = 0; t < MIXING_VIRTUAL_TOOLS && t < MIXING_STEPPERS; t++)
MIXER_STEPPER_LOOP(i)
color[t][i] = (t == i) ? COLOR_A_MASK : 0;
// Remaining virtual tools are 100% filament 1
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#if MIXING_VIRTUAL_TOOLS > MIXING_STEPPERS
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for (uint8_t t = MIXING_STEPPERS; t < MIXING_VIRTUAL_TOOLS; t++)
MIXER_STEPPER_LOOP(i)
color[t][i] = (i == 0) ? COLOR_A_MASK : 0;
#endif
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}
// called at boot
void Mixer::init() {
reset_vtools();
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#if ENABLED(RETRACT_SYNC_MIXING)
// AUTORETRACT_TOOL gets the same amount of all filaments
MIXER_STEPPER_LOOP(i)
color[MIXER_AUTORETRACT_TOOL][i] = COLOR_A_MASK;
#endif
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ZERO(collector);
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}
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#endif // MIXING_EXTRUDER