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https://github.com/qmk/qmk_firmware.git
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6209122213
* [Keymap] Add vitoni layout for GMMK Pro (ISO) Keymap has layered cursor keys similar to laptop keyboards. * Configure RGB defaults for startup * Configure encoder to change value/brightness on FN layer * Remove FN layer and add dedicated RGB layer * Make RGB layer sticky (using TG) to avoid holding FN while configuring RGB * Add RGB indicators for active layers * Add RGB indicator for active RESET mode Signed-off-by: Victor Toni <victor.toni@gmail.com> * Configure idle / USB suspend settings * Add RGB fade in when resuming after suspend * Add RGB fade out before suspend * Add fade out before idle * Add breathe effect when idle
130 lines
5.6 KiB
C
130 lines
5.6 KiB
C
// Copyright 2021 Victor Toni (@vitoni)
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "utils.h"
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#include <lib/lib8tion/lib8tion.h>
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/**
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* @brief Changes `*value` to `new_value`.
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* @param[in,out] value Pointer to variable to be changed.
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* @param[in] new_value Value to be changed.
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* @param[in,out] changed Flag indicating `*value` and `new_value` were different.
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*/
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void update_value(uint8_t *value, const uint8_t new_value, bool *changed) {
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if (new_value != (*value)) {
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(*changed) = true;
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(*value) = new_value;
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}
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}
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/**
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* @brief Checks whether a value is in the given range.
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* @param[in] value Value to be checked.
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* @param[in] range_min Lower bound of range (inclusive).
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* @param[in] range_max Upper bound of range (inclusive).
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* @return `true` if (range_min <= value <= range_max), `false` otherwise
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*/
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bool in_range(const uint8_t value, const uint8_t range_min, const uint8_t range_max) {
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return range_min <= value && value <= range_max;
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}
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/**
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* @brief Calculates the sine value based on sin8() and scales it to the given range (unsigned).
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*
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* Table of values for unscaled sin8() eg. a theta of 0 results to 128 and a theta of 255 (240+15) results to 125.
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0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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+----------------------------------------------------------------
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0: 128 131 134 137 140 143 146 149 152 155 158 161 164 167 170 173
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16: 177 179 182 184 187 189 192 194 197 200 202 205 207 210 212 215
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32: 218 219 221 223 224 226 228 229 231 233 234 236 238 239 241 243
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48: 245 245 246 246 247 248 248 249 250 250 251 251 252 253 253 254
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64: 255 254 253 253 252 251 251 250 250 249 248 248 247 246 246 245
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80: 245 243 241 239 238 236 234 233 231 229 228 226 224 223 221 219
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96: 218 215 212 210 207 205 202 200 197 194 192 189 187 184 182 179
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112: 177 173 170 167 164 161 158 155 152 149 146 143 140 137 134 131
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128: 128 125 122 119 116 113 110 107 104 101 98 95 92 89 86 83
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144: 79 77 74 72 69 67 64 62 59 56 54 51 49 46 44 41
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160: 38 37 35 33 32 30 28 27 25 23 22 20 18 17 15 13
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176: 11 11 10 10 9 8 8 7 6 6 5 5 4 3 3 2
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192: 1 2 3 3 4 5 5 6 6 7 8 8 9 10 10 11
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208: 11 13 15 17 18 20 22 23 25 27 28 30 32 33 35 37
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224: 38 41 44 46 49 51 54 56 59 62 64 67 69 72 74 77
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240: 79 83 86 89 92 95 98 101 104 107 110 113 116 119 122 125
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*
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* @param[in] theta Angle (a full circle mapped to 0-255) used as input for sine calculation.
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* @param[in] range_min Lower bound of range (inclusive).
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* @param[in] range_max Upper bound of range (inclusive).
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* @return Calculated sine value mapped to the given range.
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*/
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uint8_t scaled_sin(const uint8_t theta, const uint8_t range_min, const uint8_t range_max) {
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const uint8_t range = range_max - range_min;
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return scale8(sin8(theta), range) + range_min;
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}
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/**
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* @brief Increases the given value until reaching range_max.
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* The increments occur following an upwards sine wave (scaled from range_min to range_max).
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* @param[in] theta Angle (a full circle mapped to 0-255) used as input for sine calculation.
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* @param[in] range_min Lower bound of range (inclusive).
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* @param[in] range_max Upper bound of range (inclusive).
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* @param[in] max_delta Maximum delta between value and range_max (due to values being integers and eventually not fully matching).
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* @param[in,out] value Reference of variable to be increased
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* @return `true` if value and range_max are within a delta of 3 (chosen by fair dice rolling), `false` otherwise
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* @see scaled_sin()
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*/
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bool scaled_sin_up(const uint8_t theta, const uint8_t range_min, const uint8_t range_max, const uint8_t max_delta, uint8_t *value) {
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// ensure upper range bound
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if (range_max <= (*value)) {
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(*value) = range_max;
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return true;
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}
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const uint8_t new_value = scaled_sin(theta, range_min, range_max);
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if (in_range(new_value, range_min, range_max) && (*value) < new_value) {
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(*value) = new_value;
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return range_max == (*value);
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}
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const uint8_t delta = range_max - (*value);
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if (delta <= max_delta) {
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(*value) = range_max;
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}
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return delta <= max_delta;
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}
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/**
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* @brief Decreases the given value until reaching range_min.
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* The decrements occur following an downwards sinus wave (scaled from range_min to range_max).
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* @param[in] theta Angle (a full circle mapped to 0-255) used as input for sinus calculation.
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* @param[in] range_min Lower bound of range (inclusive).
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* @param[in] range_max Upper bound of range (inclusive).
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* @param[in] max_delta Maximum delta between value and range_min (due to values being integers and eventually not fully matching).
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* @param[in,out] value Reference of variable to be decreased
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* @return `true` if value and range_max are within a delta of 3 (chosen by fair dice rolling), `false` otherwise
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* @see scaled_sin()
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*/
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bool scaled_sin_down(const uint8_t theta, const uint8_t range_min, const uint8_t range_max, const uint8_t max_delta, uint8_t *value) {
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// ensure lower range bound
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if ((*value) <= range_min) {
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(*value) = range_min;
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return true;
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}
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const uint8_t new_value = scaled_sin(theta, range_min, range_max);
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if (in_range(new_value, range_min, range_max) && new_value < (*value)) {
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(*value) = new_value;
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return range_min == (*value);
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}
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const uint8_t delta = (*value) - range_min;
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if (delta <= max_delta) {
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(*value) = range_min;
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}
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return delta <= max_delta;
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}
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