#include "font.h" #include "utf8.h" #include #define FONT_EXTRAS_START (0x7e - 0x20 + 1) struct Utf8Symbol { union { const char symbol[4]; const uint32_t uint; }; struct FontGraphic graphic; }; // ASCII symbols are stored as bare graphic to reduce ROM size const struct FontGraphic ascii_glyphs[95] = { {{0x00, 0x00, 0x00, 0x00, 0x00}}, // " 0x20 {{0x00, 0x00, 0x5f, 0x00, 0x00}}, // ! 0x21 {{0x00, 0x07, 0x00, 0x07, 0x00}}, // \" 0x22 {{0x14, 0x7f, 0x14, 0x7f, 0x14}}, // # 0x23 {{0x24, 0x2a, 0x7f, 0x2a, 0x12}}, // $ 0x24 {{0x23, 0x13, 0x08, 0x64, 0x62}}, // % 0x25 {{0x36, 0x49, 0x55, 0x22, 0x50}}, // & 0x26 {{0x00, 0x05, 0x03, 0x00, 0x00}}, // ' 0x27 {{0x00, 0x1c, 0x22, 0x41, 0x00}}, // ( 0x28 {{0x00, 0x41, 0x22, 0x1c, 0x00}}, // ) 0x29 {{0x14, 0x08, 0x3e, 0x08, 0x14}}, // * 0x2a {{0x08, 0x08, 0x3e, 0x08, 0x08}}, // + 0x2b {{0x00, 0x50, 0x30, 0x00, 0x00}}, // , 0x2c {{0x08, 0x08, 0x08, 0x08, 0x08}}, // - 0x2d {{0x00, 0x60, 0x60, 0x00, 0x00}}, // . 0x2e {{0x20, 0x10, 0x08, 0x04, 0x02}}, // / 0x2f {{0x3e, 0x51, 0x49, 0x45, 0x3e}}, // 0 0x30 {{0x00, 0x42, 0x7f, 0x40, 0x00}}, // 1 0x31 {{0x42, 0x61, 0x51, 0x49, 0x46}}, // 2 0x32 {{0x21, 0x41, 0x45, 0x4b, 0x31}}, // 3 0x33 {{0x18, 0x14, 0x12, 0x7f, 0x10}}, // 4 0x34 {{0x27, 0x45, 0x45, 0x45, 0x39}}, // 5 0x35 {{0x3c, 0x4a, 0x49, 0x49, 0x30}}, // 6 0x36 {{0x01, 0x71, 0x09, 0x05, 0x03}}, // 7 0x37 {{0x36, 0x49, 0x49, 0x49, 0x36}}, // 8 0x38 {{0x06, 0x49, 0x49, 0x29, 0x1e}}, // 9 0x39 {{0x00, 0x36, 0x36, 0x00, 0x00}}, // : 0x3a {{0x00, 0x56, 0x36, 0x00, 0x00}}, // ; 0x3b {{0x08, 0x14, 0x22, 0x41, 0x00}}, // < 0x3c {{0x14, 0x14, 0x14, 0x14, 0x14}}, // = 0x3d {{0x00, 0x41, 0x22, 0x14, 0x08}}, // > 0x3e {{0x02, 0x01, 0x51, 0x09, 0x06}}, // ? 0x3f {{0x32, 0x49, 0x79, 0x41, 0x3e}}, // @ 0x40 {{0x7e, 0x11, 0x11, 0x11, 0x7e}}, // A 0x41 {{0x7f, 0x49, 0x49, 0x49, 0x36}}, // B 0x42 {{0x3e, 0x41, 0x41, 0x41, 0x22}}, // C 0x43 {{0x7f, 0x41, 0x41, 0x22, 0x1c}}, // D 0x44 {{0x7f, 0x49, 0x49, 0x49, 0x41}}, // E 0x45 {{0x7f, 0x09, 0x09, 0x09, 0x01}}, // F 0x46 {{0x3e, 0x41, 0x49, 0x49, 0x7a}}, // G 0x47 {{0x7f, 0x08, 0x08, 0x08, 0x7f}}, // H 0x48 {{0x00, 0x41, 0x7f, 0x41, 0x00}}, // I 0x49 {{0x20, 0x40, 0x41, 0x3f, 0x01}}, // J 0x4a {{0x7f, 0x08, 0x14, 0x22, 0x41}}, // K 0x4b {{0x7f, 0x40, 0x40, 0x40, 0x40}}, // L 0x4c {{0x7f, 0x02, 0x0c, 0x02, 0x7f}}, // M 0x4d {{0x7f, 0x04, 0x08, 0x10, 0x7f}}, // N 0x4e {{0x3e, 0x41, 0x41, 0x41, 0x3e}}, // O 0x4f {{0x7f, 0x09, 0x09, 0x09, 0x06}}, // P 0x50 {{0x3e, 0x41, 0x51, 0x21, 0x5e}}, // Q 0x51 {{0x7f, 0x09, 0x19, 0x29, 0x46}}, // R 0x52 {{0x46, 0x49, 0x49, 0x49, 0x31}}, // S 0x53 {{0x01, 0x01, 0x7f, 0x01, 0x01}}, // T 0x54 {{0x3f, 0x40, 0x40, 0x40, 0x3f}}, // U 0x55 {{0x1f, 0x20, 0x40, 0x20, 0x1f}}, // V 0x56 {{0x3f, 0x40, 0x38, 0x40, 0x3f}}, // W 0x57 {{0x63, 0x14, 0x08, 0x14, 0x63}}, // X 0x58 {{0x07, 0x08, 0x70, 0x08, 0x07}}, // Y 0x59 {{0x61, 0x51, 0x49, 0x45, 0x43}}, // Z 0x5a {{0x00, 0x7f, 0x41, 0x41, 0x00}}, // [ 0x5b {{0x02, 0x04, 0x08, 0x10, 0x20}}, // \\ 0x5c {{0x00, 0x41, 0x41, 0x7f, 0x00}}, // ] 0x5d {{0x04, 0x02, 0x01, 0x02, 0x04}}, // ^ 0x5e {{0x40, 0x40, 0x40, 0x40, 0x40}}, // _ 0x5f {{0x00, 0x01, 0x02, 0x04, 0x00}}, // ` 0x60 {{0x20, 0x54, 0x54, 0x54, 0x78}}, // a 0x61 {{0x7f, 0x48, 0x44, 0x44, 0x38}}, // b 0x62 {{0x38, 0x44, 0x44, 0x44, 0x20}}, // c 0x63 {{0x38, 0x44, 0x44, 0x48, 0x7f}}, // d 0x64 {{0x38, 0x54, 0x54, 0x54, 0x18}}, // e 0x65 {{0x08, 0x7e, 0x09, 0x01, 0x02}}, // f 0x66 {{0x0c, 0x52, 0x52, 0x52, 0x3e}}, // g 0x67 {{0x7f, 0x08, 0x04, 0x04, 0x78}}, // h 0x68 {{0x00, 0x44, 0x7d, 0x40, 0x00}}, // i 0x69 {{0x20, 0x40, 0x44, 0x3d, 0x00}}, // j 0x6a {{0x7f, 0x10, 0x28, 0x44, 0x00}}, // k 0x6b {{0x00, 0x41, 0x7f, 0x40, 0x00}}, // l 0x6c {{0x7c, 0x04, 0x18, 0x04, 0x78}}, // m 0x6d {{0x7c, 0x08, 0x04, 0x04, 0x78}}, // n 0x6e {{0x38, 0x44, 0x44, 0x44, 0x38}}, // o 0x6f {{0x7c, 0x14, 0x14, 0x14, 0x08}}, // p 0x70 {{0x08, 0x14, 0x14, 0x18, 0x7c}}, // q 0x71 {{0x7c, 0x08, 0x04, 0x04, 0x08}}, // r 0x72 {{0x48, 0x54, 0x54, 0x54, 0x20}}, // s 0x73 {{0x04, 0x3f, 0x44, 0x40, 0x20}}, // t 0x74 {{0x3c, 0x40, 0x40, 0x20, 0x7c}}, // u 0x75 {{0x1c, 0x20, 0x40, 0x20, 0x1c}}, // v 0x76 {{0x3c, 0x40, 0x30, 0x40, 0x3c}}, // w 0x77 {{0x44, 0x28, 0x10, 0x28, 0x44}}, // x 0x78 {{0x0c, 0x50, 0x50, 0x50, 0x3c}}, // y 0x79 {{0x44, 0x64, 0x54, 0x4c, 0x44}}, // z 0x7a {{0x00, 0x08, 0x36, 0x41, 0x00}}, // { 0x7b {{0x00, 0x00, 0x7f, 0x00, 0x00}}, // | 0x7c {{0x00, 0x41, 0x36, 0x08, 0x00}}, // } 0x7d {{0x10, 0x08, 0x08, 0x10, 0x08}}, // ~ 0x7e }; // utf8 characters list ending with empty struct const struct Utf8Symbol utf8_glyphs[] = { { .symbol="�", {{0xFE, 0x82, 0x82, 0x82, 0xFE}} }, // box { .symbol="×", {{0x22, 0x14, 0x08, 0x14, 0x22}} }, // cross { .symbol="↑", {{0x08, 0x04, 0x3e, 0x04, 0x08}} }, // arrow_up { .symbol="↓", {{0x08, 0x10, 0x3e, 0x10, 0x08}} }, // arrow_down { .symbol="←", {{0x08, 0x1c, 0x2a, 0x08, 0x08}} }, // arrow_left { .symbol="→", {{0x08, 0x08, 0x2a, 0x1c, 0x08}} }, // arrow_right { .symbol="⏰", {{0x1c, 0x22, 0x2e, 0x2a, 0x1c}} }, // clock { .symbol="⌛", {{0x63, 0x55, 0x4d, 0x55, 0x63}} }, // hourglass { .symbol="☸", {{0x1c, 0x22, 0x2a, 0x22, 0x1c}} }, // wheel { .symbol="⏎", {{0x10, 0x38, 0x54, 0x10, 0x1e}} }, // return { .symbol="🌡", {{0x60, 0x9e, 0x81, 0x9e, 0x6a}} }, // thermometer { .symbol="°", {{0x00, 0x07, 0x05, 0x07, 0x00}} }, // degree { .symbol="🔙", {{0x04, 0x4e, 0x55, 0x44, 0x38}} }, // back { .symbol="▶", {{0x7f, 0x3e, 0x1c, 0x08, 0x00}} }, // tri_right { .symbol="◀", {{0x00, 0x08, 0x1c, 0x3e, 0x7f}} }, // tri_left // End of the list {}, }; const struct FontGraphic *Font_GetSymbol(struct Utf8Char ch) { if (ch.bytes[0] < 32) { // low ASCII is not supported. goto fail; } if (ch.bytes[0] < 127) { // valid ASCII at hard positions. // In this case only the first byte is significant. return &ascii_glyphs[ch.bytes[0] - 32]; } // search UTF8 const struct Utf8Symbol *sym = &utf8_glyphs[0]; while (sym->symbol[0]) { if (sym->uint == ch.uint) { return &sym->graphic; } sym++; } fail: return &utf8_glyphs[0].graphic; // replacement character }