/* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com> * Copyright 2020 Ploopy Corporation * * 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 2 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/>. */ #pragma once #include <stdbool.h> #ifndef SCROLLER_AR_SIZE # define SCROLLER_AR_SIZE 31 #endif #ifndef SCROLL_THRESH_RANGE_LIM # define SCROLL_THRESH_RANGE_LIM 10 #endif enum State { HIHI, HILO, LOLO, LOHI }; enum State state; /* Variables used for scroll wheel functionality. */ bool lohif; bool hilof; int lowA; int highA; bool cLowA; bool cHighA; int lowIndexA; int highIndexA; bool lowOverflowA; bool highOverflowA; int lowB; int highB; bool cLowB; bool cHighB; int lowIndexB; int highIndexB; bool lowOverflowB; bool highOverflowB; int scrollThresholdA; int scrollThresholdB; int arLowA[SCROLLER_AR_SIZE]; int arHighA[SCROLLER_AR_SIZE]; int arLowB[SCROLLER_AR_SIZE]; int arHighB[SCROLLER_AR_SIZE]; void calculateThresholdA(int curA); void calculateThresholdB(int curB); int calculateThreshold(int cur, int* low, int* high, bool* cLow, bool* cHigh, int arLow[], int arHigh[], int* lowIndex, int* highIndex, bool* lowOverflow, bool* highOverflow); int thresholdEquation(int lo, int hi); void incrementIndex(int* index, bool* ovflw); void opt_encoder_init(void); int opt_encoder_handler(int curA, int curB);