OLED Cyrillic Support for v1.3 (#1640)

* Extended ASCII codes and cyrillic support

(cherry picked from commit e977840805)

* Fixed `ё`, `Ё` letters

(cherry picked from commit 2f4a2ccb2f)

* Fixed `customFontTableLookup` execution flow

(cherry picked from commit 377f909f36)

* [OLED] Specifying the language by defining it in `platformio.ini`

(cherry picked from commit ddd8132b24)

* [OLED] localization guide

(cherry picked from commit a3267c886f)

* [OLED] Cyrillic support

Localization guide has been moved to https://github.com/meshtastic/Meshtastic/tree/master/docs/developers/Firmware

https://meshtastic.org/docs/developers/Firmware/oled-l10n-guide

Co-authored-by: Thomas Göttgens <tgoettgens@gmail.com>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
This commit is contained in:
Vladislav Osmanov
2022-09-04 23:00:10 +03:00
committed by GitHub
parent 285ba9639e
commit cb3010b58c
5 changed files with 475 additions and 3 deletions

View File

@@ -212,7 +212,7 @@ class Screen : public concurrency::OSThread
uint8_t last = LASTCHAR; // get last char
LASTCHAR = ch;
switch (last) { // conversion depnding on first UTF8-character
switch (last) { // conversion depending on first UTF8-character
case 0xC2: {
SKIPREST = false;
return (uint8_t)ch;
@@ -221,10 +221,23 @@ class Screen : public concurrency::OSThread
SKIPREST = false;
return (uint8_t)(ch | 0xC0);
}
// map UTF-8 cyrillic chars to it Windows-1251 (CP-1251) ASCII codes
// note: in this case we must use compatible font - provided ArialMT_Plain_10/16/24 by 'ThingPulse/esp8266-oled-ssd1306' library
// have empty chars for non-latin ASCII symbols
case 0xD0: {
SKIPREST = false;
if (ch == 129) return (uint8_t)(168); // Ё
if (ch > 143 && ch < 192) return (uint8_t)(ch + 48);
}
case 0xD1: {
SKIPREST = false;
if (ch == 145) return (uint8_t)(184); // ё
if (ch > 127 && ch < 144) return (uint8_t)(ch + 112);
}
}
// We want to strip out prefix chars for two-byte char formats
if (ch == 0xC2 || ch == 0xC3 || ch == 0x82)
if (ch == 0xC2 || ch == 0xC3 || ch == 0x82 || ch == 0xD0 || ch == 0xD1)
return (uint8_t)0;
// If we already returned an unconvertable-character symbol for this unconvertable-character sequence, return NULs for the