mirror of https://github.com/rusefi/rusefi.git
61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
/*
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* avg_values.c
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*
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* @date Jul 23, 2013
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* @author Andrey Belomutskiy, (c) 2012-2014
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*/
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#include "avg_values.h"
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#include <math.h>
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void avgFill(AvgTable *table, int count, float value) {
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for (int i = 0; i < AVG_TAB_SIZE; i++) {
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for (int j = 0; j < AVG_TAB_SIZE; j++) {
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table->counts[i][j] = count;
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table->values[i][j] = value;
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}
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}
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}
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void avgReset(AvgTable *table) {
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avgFill(table, 0, 0);
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}
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void avgAddValue(AvgTable *table, int rpm, float key, float value) {
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if (rpm >= MAX_RPM || key >= MAX_KEY) {
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return;
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}
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int i = (int)(AVG_TAB_SIZE * rpm / MAX_RPM);
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int j = (int)(AVG_TAB_SIZE * key / MAX_KEY);
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table->values[i][j] += value;
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table->counts[i][j]++;
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}
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float avgGetValueByIndexes(AvgTable *table, int i, int j) {
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int count = table->counts[i][j];
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if (count == 0) {
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return NAN;
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}
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return table->values[i][j] / count;
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}
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float avgGetValue(AvgTable *table, int rpm, float key) {
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if (rpm >= MAX_RPM || key >= MAX_KEY) {
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return NAN;
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}
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int i = (int)(AVG_TAB_SIZE * rpm / MAX_RPM);
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int j = (int)(AVG_TAB_SIZE * key / MAX_KEY);
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return avgGetValueByIndexes(table, i, j);
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}
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int avgGetValuesCount(AvgTable *table, int rpm, float key) {
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if (rpm >= MAX_RPM || key >= MAX_KEY) {
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return 0;
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}
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int i = (int)(AVG_TAB_SIZE * rpm / MAX_RPM);
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int j = (int)(AVG_TAB_SIZE * key / MAX_KEY);
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return table->counts[i][j];
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}
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