mirror of
https://github.com/firewalkwithm3/qmk_firmware.git
synced 2024-11-22 19:40:29 +08:00
2b097d670a
* Fix overflow in WPM calculations. First, the "fresh" WPM calculation could end up being up to 12000 (with default `WPM_ESTIMATED_WORD_SIZE`) if keys were pressed more or less simultaneously. This value has now been clamped down to 255, in effect clamping WPM to its max value of 255. Second, with `WPM_ALLOW_COUNT_REGRESSION` enabled, it was possible to regress the WPM below 0 (i.e. to 255) by just repeatedly pressing backspace. * Fix WPM being limited to 235 due to float/int logic.
101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
/*
|
|
* Copyright 2020 Richard Sutherland (rich@brickbots.com)
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#include "wpm.h"
|
|
|
|
#include <math.h>
|
|
|
|
// WPM Stuff
|
|
static uint8_t current_wpm = 0;
|
|
static uint16_t wpm_timer = 0;
|
|
|
|
// This smoothing is 40 keystrokes
|
|
static const float wpm_smoothing = WPM_SMOOTHING;
|
|
|
|
void set_current_wpm(uint8_t new_wpm) { current_wpm = new_wpm; }
|
|
|
|
uint8_t get_current_wpm(void) { return current_wpm; }
|
|
|
|
bool wpm_keycode(uint16_t keycode) { return wpm_keycode_kb(keycode); }
|
|
|
|
__attribute__((weak)) bool wpm_keycode_kb(uint16_t keycode) { return wpm_keycode_user(keycode); }
|
|
|
|
__attribute__((weak)) bool wpm_keycode_user(uint16_t keycode) {
|
|
if ((keycode >= QK_MOD_TAP && keycode <= QK_MOD_TAP_MAX) || (keycode >= QK_LAYER_TAP && keycode <= QK_LAYER_TAP_MAX) || (keycode >= QK_MODS && keycode <= QK_MODS_MAX)) {
|
|
keycode = keycode & 0xFF;
|
|
} else if (keycode > 0xFF) {
|
|
keycode = 0;
|
|
}
|
|
if ((keycode >= KC_A && keycode <= KC_0) || (keycode >= KC_TAB && keycode <= KC_SLASH)) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
#ifdef WPM_ALLOW_COUNT_REGRESSION
|
|
__attribute__((weak)) uint8_t wpm_regress_count(uint16_t keycode) {
|
|
bool weak_modded = (keycode >= QK_LCTL && keycode < QK_LSFT) || (keycode >= QK_RCTL && keycode < QK_RSFT);
|
|
|
|
if ((keycode >= QK_MOD_TAP && keycode <= QK_MOD_TAP_MAX) || (keycode >= QK_LAYER_TAP && keycode <= QK_LAYER_TAP_MAX) || (keycode >= QK_MODS && keycode <= QK_MODS_MAX)) {
|
|
keycode = keycode & 0xFF;
|
|
} else if (keycode > 0xFF) {
|
|
keycode = 0;
|
|
}
|
|
if (keycode == KC_DEL || keycode == KC_BSPC) {
|
|
if (((get_mods() | get_oneshot_mods()) & MOD_MASK_CTRL) || weak_modded) {
|
|
return WPM_ESTIMATED_WORD_SIZE;
|
|
} else {
|
|
return 1;
|
|
}
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void update_wpm(uint16_t keycode) {
|
|
if (wpm_keycode(keycode)) {
|
|
if (wpm_timer > 0) {
|
|
uint16_t latest_wpm = 60000 / timer_elapsed(wpm_timer) / WPM_ESTIMATED_WORD_SIZE;
|
|
if (latest_wpm > UINT8_MAX) {
|
|
latest_wpm = UINT8_MAX;
|
|
}
|
|
current_wpm += ceilf((latest_wpm - current_wpm) * wpm_smoothing);
|
|
}
|
|
wpm_timer = timer_read();
|
|
}
|
|
#ifdef WPM_ALLOW_COUNT_REGRESSION
|
|
uint8_t regress = wpm_regress_count(keycode);
|
|
if (regress) {
|
|
if (current_wpm < regress) {
|
|
current_wpm = 0;
|
|
} else {
|
|
current_wpm -= regress;
|
|
}
|
|
wpm_timer = timer_read();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void decay_wpm(void) {
|
|
if (timer_elapsed(wpm_timer) > 1000) {
|
|
current_wpm += (-current_wpm) * wpm_smoothing;
|
|
wpm_timer = timer_read();
|
|
}
|
|
}
|