Merge pull request #5212 from thinkyhead/rc_mixing_faster
Store mix factors as reciprocals and multiply
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commit
665b7f3893
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@ -593,7 +593,7 @@ float cartes[XYZ] = { 0 };
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#endif
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#endif
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#if ENABLED(MIXING_EXTRUDER)
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#if ENABLED(MIXING_EXTRUDER)
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float mixing_factor[MIXING_STEPPERS];
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float mixing_factor[MIXING_STEPPERS]; // Reciprocal of mix proportion. 0.0 = off, otherwise >= 1.0.
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#if MIXING_VIRTUAL_TOOLS > 1
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#if MIXING_VIRTUAL_TOOLS > 1
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float mixing_virtual_tool_mix[MIXING_VIRTUAL_TOOLS][MIXING_STEPPERS];
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float mixing_virtual_tool_mix[MIXING_VIRTUAL_TOOLS][MIXING_STEPPERS];
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#endif
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#endif
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@ -2662,17 +2662,11 @@ static void homeaxis(AxisEnum axis) {
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void normalize_mix() {
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void normalize_mix() {
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float mix_total = 0.0;
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float mix_total = 0.0;
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for (int i = 0; i < MIXING_STEPPERS; i++) {
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for (int i = 0; i < MIXING_STEPPERS; i++) mix_total += RECIPROCAL(mixing_factor[i]);
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float v = mixing_factor[i];
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if (v < 0) v = mixing_factor[i] = 0;
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mix_total += v;
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}
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// Scale all values if they don't add up to ~1.0
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// Scale all values if they don't add up to ~1.0
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if (mix_total < 0.9999 || mix_total > 1.0001) {
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if (!NEAR(mix_total, 1.0)) {
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SERIAL_PROTOCOLLNPGM("Warning: Mix factors must add up to 1.0. Scaling.");
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SERIAL_PROTOCOLLNPGM("Warning: Mix factors must add up to 1.0. Scaling.");
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float mix_scale = 1.0 / mix_total;
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for (int i = 0; i < MIXING_STEPPERS; i++) mixing_factor[i] *= mix_total;
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for (int i = 0; i < MIXING_STEPPERS; i++)
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mixing_factor[i] *= mix_scale;
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}
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}
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}
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}
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@ -2682,9 +2676,11 @@ static void homeaxis(AxisEnum axis) {
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// The total "must" be 1.0 (but it will be normalized)
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// The total "must" be 1.0 (but it will be normalized)
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void gcode_get_mix() {
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void gcode_get_mix() {
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const char* mixing_codes = "ABCDHI";
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const char* mixing_codes = "ABCDHI";
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for (int i = 0; i < MIXING_STEPPERS; i++)
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for (int i = 0; i < MIXING_STEPPERS; i++) {
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mixing_factor[i] = code_seen(mixing_codes[i]) ? code_value_float() : 0;
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float v = code_seen(mixing_codes[i]) ? code_value_float() : 0.0;
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NOLESS(v, 0.0);
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mixing_factor[i] = RECIPROCAL(v);
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}
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normalize_mix();
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normalize_mix();
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}
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}
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#endif
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#endif
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@ -7240,8 +7236,11 @@ inline void gcode_M907() {
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*/
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*/
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inline void gcode_M163() {
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inline void gcode_M163() {
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int mix_index = code_seen('S') ? code_value_int() : 0;
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int mix_index = code_seen('S') ? code_value_int() : 0;
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float mix_value = code_seen('P') ? code_value_float() : 0.0;
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if (mix_index < MIXING_STEPPERS) {
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if (mix_index < MIXING_STEPPERS) mixing_factor[mix_index] = mix_value;
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float mix_value = code_seen('P') ? code_value_float() : 0.0;
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NOLESS(mix_value, 0.0);
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mixing_factor[mix_index] = RECIPROCAL(mix_value);
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}
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}
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}
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#if MIXING_VIRTUAL_TOOLS > 1
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#if MIXING_VIRTUAL_TOOLS > 1
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@ -9991,7 +9990,7 @@ void setup() {
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#if ENABLED(MIXING_EXTRUDER) && MIXING_VIRTUAL_TOOLS > 1
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#if ENABLED(MIXING_EXTRUDER) && MIXING_VIRTUAL_TOOLS > 1
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// Initialize mixing to 100% color 1
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// Initialize mixing to 100% color 1
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for (uint8_t i = 0; i < MIXING_STEPPERS; i++)
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for (uint8_t i = 0; i < MIXING_STEPPERS; i++)
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mixing_factor[i] = (i == 0) ? 1 : 0;
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mixing_factor[i] = (i == 0) ? 1.0 : 0.0;
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for (uint8_t t = 0; t < MIXING_VIRTUAL_TOOLS; t++)
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for (uint8_t t = 0; t < MIXING_VIRTUAL_TOOLS; t++)
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for (uint8_t i = 0; i < MIXING_STEPPERS; i++)
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for (uint8_t i = 0; i < MIXING_STEPPERS; i++)
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mixing_virtual_tool_mix[t][i] = mixing_factor[i];
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mixing_virtual_tool_mix[t][i] = mixing_factor[i];
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@ -133,4 +133,6 @@
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#define NEAR_ZERO(x) ((x) > -0.000001 && (x) < 0.000001)
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#define NEAR_ZERO(x) ((x) > -0.000001 && (x) < 0.000001)
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#define NEAR(x,y) NEAR_ZERO((x)-(y))
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#define NEAR(x,y) NEAR_ZERO((x)-(y))
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#define RECIPROCAL(x) (NEAR_ZERO(x) ? 0.0 : 1.0 / (x))
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#endif //__MACROS_H
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#endif //__MACROS_H
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@ -750,7 +750,7 @@ void Planner::_buffer_line(const float &a, const float &b, const float &c, const
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// For a mixing extruder, get a magnified step_event_count for each
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// For a mixing extruder, get a magnified step_event_count for each
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#if ENABLED(MIXING_EXTRUDER)
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#if ENABLED(MIXING_EXTRUDER)
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for (uint8_t i = 0; i < MIXING_STEPPERS; i++)
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for (uint8_t i = 0; i < MIXING_STEPPERS; i++)
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block->mix_event_count[i] = UNEAR_ZERO(mixing_factor[i]) ? 0 : block->step_event_count / mixing_factor[i];
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block->mix_event_count[i] = mixing_factor[i] * block->step_event_count;
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#endif
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#endif
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#if FAN_COUNT > 0
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#if FAN_COUNT > 0
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