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second-movement/watch-library/shared/watch/watch_common_display.c
Lorenzo Prosseda 3baff2f5a7 Avoid confusion between T and E on classic display 
In place of T, display a + character in positions 4 and 6
2025-08-04 07:11:23 -04:00

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/*
* MIT License
*
* Copyright (c) 2020 Joey Castillo
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "watch_slcd.h"
#include "watch_common_display.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
uint8_t IndicatorSegments[8] = {
SLCD_SEGID(0, 17), // WATCH_INDICATOR_SIGNAL
SLCD_SEGID(0, 16), // WATCH_INDICATOR_BELL
SLCD_SEGID(2, 17), // WATCH_INDICATOR_PM
SLCD_SEGID(2, 16), // WATCH_INDICATOR_24H
SLCD_SEGID(1, 10), // WATCH_INDICATOR_LAP
// Placeholders for indicators unavailable on the original F-91W LCD
SLCD_SEGID(4, 0), // WATCH_INDICATOR_ARROWS (does not exist, will set in SDATAL4 which is harmless)
SLCD_SEGID(4, 0), // WATCH_INDICATOR_SLEEP (does not exist, will set in SDATAL4 which is harmless)
SLCD_SEGID(4, 0) // WATCH_INDICATOR_COLON (does not exist, will set in SDATAL4 which is harmless)
};
void watch_display_character(uint8_t character, uint8_t position) {
if (watch_get_lcd_type() == WATCH_LCD_TYPE_CUSTOM) {
if (character == 'R' && position > 1 && position < 8) character = 'r'; // We can't display uppercase R in these positions
else if (character == 'T' && position > 1 && position < 8) character = 't'; // lowercase t is the only option for these positions
} else {
// special cases for positions 4 and 6
if (position == 4 || position == 6) {
if (character == '7') character = '&'; // "lowercase" 7
else if (character == 'A') character = 'a'; // A needs to be lowercase
else if (character == 'o') character = 'O'; // O needs to be uppercase
else if (character == 'L') character = '!'; // L needs to be in top half
else if (character == 'M' || character == 'm' || character == 'N') character = 'n'; // M and uppercase N need to be lowercase n
else if (character == 'c') character = 'C'; // C needs to be uppercase
else if (character == 'J') character = 'j'; // same
else if (character == 'v' || character == 'V' || character == 'U' || character == 'W' || character == 'w') character = 'u'; // bottom segment duplicated, so show in top half
else if (character == 't' || character == 'T') character = '+'; // avoid confusion with uppercase E
} else {
if (character == 'u') character = 'v'; // we can use the bottom segment; move to lower half
else if (character == 'j') character = 'J'; // same but just display a normal J
else if (character == '.') character = '_'; // we can use the bottom segment; make dot an underscore
}
if (position > 1) {
if (character == 'T') character = 't'; // uppercase T only works in positions 0 and 1
}
if (position == 1) {
if (character == 'a') character = 'A'; // A needs to be uppercase
else if (character == 'o') character = 'O'; // O needs to be uppercase
else if (character == 'i') character = 'l'; // I needs to be uppercase (use an l, it looks the same)
else if (character == 'n') character = 'N'; // N needs to be uppercase
else if (character == 'r') character = 'R'; // R needs to be uppercase
else if (character == 'd') character = 'D'; // D needs to be uppercase
else if (character == 'v' || character == 'V' || character == 'u') character = 'U'; // side segments shared, make uppercase
else if (character == 'b') character = 'B'; // B needs to be uppercase
else if (character == 'c') character = 'C'; // C needs to be uppercase
} else {
if (character == 'R') character = 'r'; // R needs to be lowercase almost everywhere
}
if (position == 0) {
watch_clear_pixel(0, 15); // clear funky ninth segment
} else {
if (character == 'I') character = 'l'; // uppercase I only works in position 0
}
}
digit_mapping_t segmap;
uint8_t segdata;
/// TODO: This could be optimized by doing this check once and setting a pointer in watch_discover_lcd_type.
if (watch_get_lcd_type() == WATCH_LCD_TYPE_CUSTOM) {
segmap = Custom_LCD_Display_Mapping[position];
segdata = Custom_LCD_Character_Set[character - 0x20];
} else {
segmap = Classic_LCD_Display_Mapping[position];
segdata = Classic_LCD_Character_Set[character - 0x20];
}
for (int i = 0; i < 8; i++) {
if (segmap.segment[i].value == segment_does_not_exist) {
// Segment does not exist; skip it.
segdata = segdata >> 1;
continue;
}
uint8_t com = segmap.segment[i].address.com;
uint8_t seg = segmap.segment[i].address.seg;
if (segdata & 1) {
watch_set_pixel(com, seg);
}
else {
watch_clear_pixel(com, seg);
}
segdata = segdata >> 1;
}
if (character == 'T' && position == 1) watch_set_pixel(1, 12); // add descender
else if (position == 0 && (character == 'B' || character == 'D' || character == '@')) watch_set_pixel(0, 15); // add funky ninth segment
else if (position == 1 && (character == 'B' || character == 'D' || character == '@')) watch_set_pixel(0, 12); // add funky ninth segment
}
void watch_display_character_lp_seconds(uint8_t character, uint8_t position) {
// Will only work for digits and for positions 8 and 9 - but less code & checks to reduce power consumption
digit_mapping_t segmap;
uint8_t segdata;
/// TODO: See optimization note above.
if (watch_get_lcd_type() == WATCH_LCD_TYPE_CUSTOM) {
segmap = Custom_LCD_Display_Mapping[position];
segdata = Custom_LCD_Character_Set[character - 0x20];
} else {
segmap = Classic_LCD_Display_Mapping[position];
segdata = Classic_LCD_Character_Set[character - 0x20];
}
for (int i = 0; i < 8; i++) {
if (segmap.segment[i].value == segment_does_not_exist) {
// Segment does not exist; skip it.
segdata = segdata >> 1;
continue;
}
uint8_t com = segmap.segment[i].address.com;
uint8_t seg = segmap.segment[i].address.seg;
if (segdata & 1) {
watch_set_pixel(com, seg);
}
else {
watch_clear_pixel(com, seg);
}
segdata = segdata >> 1;
}
}
void watch_display_string(const char *string, uint8_t position) {
size_t i = 0;
while(string[i] != 0) {
watch_display_character(string[i], position + i);
i++;
if (position + i >= 10) break;
}
}
void watch_display_text(watch_position_t location, const char *string) {
switch (location) {
case WATCH_POSITION_TOP:
case WATCH_POSITION_TOP_LEFT:
watch_display_character(string[0], 0);
if (string[1]) {
watch_display_character(string[1], 1);
}
break;
case WATCH_POSITION_TOP_RIGHT:
watch_display_character(string[0], 2);
if (string[1]) {
watch_display_character(string[1], 3);
}
break;
case WATCH_POSITION_BOTTOM:
{
if (watch_get_lcd_type() == WATCH_LCD_TYPE_CUSTOM) {
watch_clear_pixel(0, 22);
}
int i = 0;
while (string[i] != 0) {
watch_display_character(string[i], 4 + i);
i++;
}
}
break;
case WATCH_POSITION_HOURS:
watch_display_character(string[0], 4);
if (string[1]) {
watch_display_character(string[1], 5);
}
break;
case WATCH_POSITION_MINUTES:
watch_display_character(string[0], 6);
if (string[1]) {
watch_display_character(string[1], 7);
}
break;
case WATCH_POSITION_SECONDS:
watch_display_character(string[0], 8);
if (string[1]) {
watch_display_character(string[1], 9);
}
break;
case WATCH_POSITION_FULL:
// This is deprecated, but we use it for the legacy behavior.
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
watch_display_string(string, 0);
#pragma GCC diagnostic pop
if (watch_get_lcd_type() == WATCH_LCD_TYPE_CUSTOM) {
if (strlen(string) >= 11) watch_display_character(string[10], 10);
else watch_display_character(' ', 10);
}
}
}
void watch_display_text_with_fallback(watch_position_t location, const char *string, const char *fallback) {
if (watch_get_lcd_type() == WATCH_LCD_TYPE_CUSTOM) {
switch (location) {
case WATCH_POSITION_TOP:
for (size_t i = 0; i < strlen(string); i++) {
if (i < 2) watch_display_character(string[i], i);
else if (i == 2) watch_display_character(string[i], 10);
else if (i < 5) watch_display_character(string[i], i - 1);
else break;
}
break;
case WATCH_POSITION_TOP_LEFT:
watch_display_character(string[0], 0);
if (string[1]) {
watch_display_character(string[1], 1);
} else {
return;
}
if (string[2]) {
// position 3 is at index 10 in the display mapping
watch_display_character(string[2], 10);
}
break;
case WATCH_POSITION_BOTTOM:
{
watch_clear_pixel(0, 22);
int i = 0;
int offset = 0;
size_t len = strlen(string);
if (len == 7 && string[0] == '1') {
watch_set_pixel(0, 22);
offset = 1;
i++;
}
while (string[i] != 0) {
if (4 + i - offset == 10) break;
watch_display_character(string[i], 4 + i - offset);
i++;
}
}
break;
case WATCH_POSITION_TOP_RIGHT:
case WATCH_POSITION_HOURS:
case WATCH_POSITION_MINUTES:
case WATCH_POSITION_SECONDS:
case WATCH_POSITION_FULL:
watch_display_text(location, string);
break;
}
} else {
watch_display_text(location, fallback);
}
}
void watch_display_float_with_best_effort(float value, const char *units) {
char buf[8];
char buf_fallback[8];
const char *blank_units = " ";
if (value < -99.9) {
watch_clear_decimal_if_available();
watch_display_text_with_fallback(WATCH_POSITION_BOTTOM, "Undflo", " Unflo");
return;
} else if (value > 199.99) {
watch_clear_decimal_if_available();
watch_display_text(WATCH_POSITION_BOTTOM, "Ovrflo");
return;
}
uint16_t value_times_100 = abs((int)round(value * 100.0));
bool set_decimal = true;
if (value < 0 && value_times_100 != 0) {
if (value_times_100 > 999) {
// decimal point isn't in the right place for these numbers; use same format as classic.
set_decimal = false;
snprintf(buf, sizeof(buf), "-%4.1f%s", -value, units ? units : blank_units);
snprintf(buf_fallback, sizeof(buf_fallback), "%s", buf);
} else {
snprintf(buf, sizeof(buf), "-%03d%s", value_times_100 % 1000u, units ? units : blank_units);
snprintf(buf_fallback, sizeof(buf_fallback), "-%3.1f%s", -value, units ? units : blank_units);
}
} else if (value_times_100 > 9999) {
snprintf(buf, sizeof(buf), "%5u%s", value_times_100, units ? units : blank_units);
snprintf(buf_fallback, sizeof(buf_fallback), "%4.1f%s", value, units ? units : blank_units);
} else if (value_times_100 > 999) {
snprintf(buf, sizeof(buf), "%4u%s", value_times_100, units ? units : blank_units);
snprintf(buf_fallback, sizeof(buf_fallback), "%4.1f%s", value, units ? units : blank_units);
} else {
snprintf(buf, sizeof(buf), " %03u%s", value_times_100 % 1000u, units ? units : blank_units);
snprintf(buf_fallback, sizeof(buf_fallback), "%4.2f%s", value, units ? units : blank_units);
}
watch_display_text_with_fallback(WATCH_POSITION_BOTTOM, buf, buf_fallback);
if (set_decimal) {
watch_set_decimal_if_available();
} else {
watch_clear_decimal_if_available();
}
}
void watch_set_colon(void) {
if (watch_get_lcd_type() == WATCH_LCD_TYPE_CUSTOM) {
watch_set_pixel(0, 0);
} else {
watch_set_pixel(1, 16);
}
}
void watch_clear_colon(void) {
if (watch_get_lcd_type() == WATCH_LCD_TYPE_CUSTOM) {
watch_clear_pixel(0, 0);
} else {
watch_clear_pixel(1, 16);
}
}
void watch_set_decimal_if_available(void) {
if (watch_get_lcd_type() == WATCH_LCD_TYPE_CUSTOM) {
watch_set_pixel(0, 14);
}
}
void watch_clear_decimal_if_available(void) {
if (watch_get_lcd_type() == WATCH_LCD_TYPE_CUSTOM) {
watch_clear_pixel(0, 14);
}
}
void watch_set_indicator(watch_indicator_t indicator) {
uint32_t value = IndicatorSegments[indicator];
uint8_t com = SLCD_COMNUM(value);
uint8_t seg = SLCD_SEGNUM(value);
watch_set_pixel(com, seg);
}
void watch_clear_indicator(watch_indicator_t indicator) {
uint32_t value = IndicatorSegments[indicator];
uint8_t com = SLCD_COMNUM(value);
uint8_t seg = SLCD_SEGNUM(value);
watch_clear_pixel(com, seg);
}
void watch_clear_all_indicators(void) {
/// TODO: Optimize this? Can be 3-4 writes to SDATAL registers
watch_clear_indicator(WATCH_INDICATOR_SIGNAL);
watch_clear_indicator(WATCH_INDICATOR_BELL);
watch_clear_indicator(WATCH_INDICATOR_PM);
watch_clear_indicator(WATCH_INDICATOR_24H);
watch_clear_indicator(WATCH_INDICATOR_LAP);
watch_clear_indicator(WATCH_INDICATOR_ARROWS);
watch_clear_indicator(WATCH_INDICATOR_SLEEP);
}
void _watch_update_indicator_segments(void) {
if (watch_get_lcd_type() == WATCH_LCD_TYPE_CUSTOM) {
IndicatorSegments[0] = SLCD_SEGID(0, 21); // WATCH_INDICATOR_SIGNAL
IndicatorSegments[1] = SLCD_SEGID(1, 21); // WATCH_INDICATOR_BELL
IndicatorSegments[2] = SLCD_SEGID(3, 21); // WATCH_INDICATOR_PM
IndicatorSegments[3] = SLCD_SEGID(2, 21); // WATCH_INDICATOR_24H
IndicatorSegments[4] = SLCD_SEGID(1, 0); // WATCH_INDICATOR_LAP
IndicatorSegments[5] = SLCD_SEGID(2, 0); // WATCH_INDICATOR_ARROWS
IndicatorSegments[6] = SLCD_SEGID(3, 0); // WATCH_INDICATOR_SLEEP
IndicatorSegments[7] = SLCD_SEGID(4, 0); // WATCH_INDICATOR_SLEEP
}
}
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