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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | mjames | 1 | /* |
| 2 | * Font.c |
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| 3 | |||
| 4 | * |
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| 5 | * Created on: 20 Dec 2015 |
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| 6 | * Author: Mike |
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| 7 | */ |
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| 8 | #include <stdint.h> |
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| 9 | #include <string.h> |
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| 10 | #include "libSSD1306/ap_math.h" |
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| 11 | #include "libSSD1306/SSD1306.h" |
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| 12 | |||
| 13 | #include "libSSD1306/Font.h" |
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| 14 | |||
| 15 | #include "libSSD1306/ascii-lucida.h" |
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| 16 | |||
| 17 | uint8_t cursor_x; |
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| 18 | uint8_t cursor_y; |
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| 19 | |||
| 20 | /* |
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| 21 | * display text using a 5x7 bitmap font in ASCII letters |
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| 22 | */ |
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| 3 | mjames | 23 | static const unsigned char font[][5] = |
| 24 | { |
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| 25 | { 0x00, 0x00, 0x00, 0x00, 0x00 }, // 0x20 32 |
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| 26 | { 0x00, 0x00, 0x6f, 0x00, 0x00 }, // ! 0x21 33 |
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| 27 | { 0x00, 0x07, 0x00, 0x07, 0x00 }, // " 0x22 34 |
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| 28 | { 0x14, 0x7f, 0x14, 0x7f, 0x14 }, // # 0x23 35 |
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| 29 | { 0x2e, 0x2a, 0xff, 0x2a, 0x3a }, // $ 0x24 36 |
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| 30 | { 0x23, 0x13, 0x08, 0x64, 0x62 }, // % 0x25 37 |
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| 31 | { 0x36, 0x49, 0x56, 0x20, 0x50 }, // & 0x26 38 |
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| 32 | { 0x00, 0x00, 0x07, 0x00, 0x00 }, // ' 0x27 39 |
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| 33 | { 0x00, 0x1c, 0x22, 0x41, 0x00 }, // ( 0x28 40 |
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| 34 | { 0x00, 0x41, 0x22, 0x1c, 0x00 }, // ) 0x29 41 |
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| 35 | { 0x14, 0x08, 0x3e, 0x08, 0x14 }, // * 0x2a 42 |
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| 36 | { 0x08, 0x08, 0x3e, 0x08, 0x08 }, // + 0x2b 43 |
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| 37 | { 0x00, 0x50, 0x30, 0x00, 0x00 }, // , 0x2c 44 |
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| 38 | { 0x08, 0x08, 0x08, 0x08, 0x08 }, // - 0x2d 45 |
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| 39 | { 0x00, 0x60, 0x60, 0x00, 0x00 }, // . 0x2e 46 |
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| 40 | { 0x20, 0x10, 0x08, 0x04, 0x02 }, // / 0x2f 47 |
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| 41 | { 0x3e, 0x51, 0x49, 0x45, 0x3e }, // 0 0x30 48 |
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| 42 | { 0x00, 0x42, 0x7f, 0x40, 0x00 }, // 1 0x31 49 |
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| 43 | { 0x42, 0x61, 0x51, 0x49, 0x46 }, // 2 0x32 50 |
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| 44 | { 0x21, 0x41, 0x45, 0x4b, 0x31 }, // 3 0x33 51 |
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| 45 | { 0x18, 0x14, 0x12, 0x7f, 0x10 }, // 4 0x34 52 |
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| 46 | { 0x27, 0x45, 0x45, 0x45, 0x39 }, // 5 0x35 53 |
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| 47 | { 0x3c, 0x4a, 0x49, 0x49, 0x30 }, // 6 0x36 54 |
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| 48 | { 0x01, 0x71, 0x09, 0x05, 0x03 }, // 7 0x37 55 |
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| 49 | { 0x36, 0x49, 0x49, 0x49, 0x36 }, // 8 0x38 56 |
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| 50 | { 0x06, 0x49, 0x49, 0x29, 0x1e }, // 9 0x39 57 |
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| 51 | { 0x00, 0x36, 0x36, 0x00, 0x00 }, // : 0x3a 58 |
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| 52 | { 0x00, 0x56, 0x36, 0x00, 0x00 }, // ; 0x3b 59 |
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| 53 | { 0x08, 0x14, 0x22, 0x41, 0x00 }, // < 0x3c 60 |
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| 54 | { 0x14, 0x14, 0x14, 0x14, 0x14 }, // = 0x3d 61 |
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| 55 | { 0x00, 0x41, 0x22, 0x14, 0x08 }, // > 0x3e 62 |
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| 56 | { 0x02, 0x01, 0x51, 0x09, 0x06 }, // ? 0x3f 63 |
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| 57 | { 0x3e, 0x41, 0x5d, 0x49, 0x4e }, // @ 0x40 64 |
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| 58 | { 0x7e, 0x09, 0x09, 0x09, 0x7e }, // A 0x41 65 |
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| 59 | { 0x7f, 0x49, 0x49, 0x49, 0x36 }, // B 0x42 66 |
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| 60 | { 0x3e, 0x41, 0x41, 0x41, 0x22 }, // C 0x43 67 |
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| 61 | { 0x7f, 0x41, 0x41, 0x41, 0x3e }, // D 0x44 68 |
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| 62 | { 0x7f, 0x49, 0x49, 0x49, 0x41 }, // E 0x45 69 |
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| 63 | { 0x7f, 0x09, 0x09, 0x09, 0x01 }, // F 0x46 70 |
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| 64 | { 0x3e, 0x41, 0x49, 0x49, 0x7a }, // G 0x47 71 |
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| 65 | { 0x7f, 0x08, 0x08, 0x08, 0x7f }, // H 0x48 72 |
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| 66 | { 0x00, 0x41, 0x7f, 0x41, 0x00 }, // I 0x49 73 |
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| 67 | { 0x20, 0x40, 0x41, 0x3f, 0x01 }, // J 0x4a 74 |
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| 68 | { 0x7f, 0x08, 0x14, 0x22, 0x41 }, // K 0x4b 75 |
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| 69 | { 0x7f, 0x40, 0x40, 0x40, 0x40 }, // L 0x4c 76 |
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| 70 | { 0x7f, 0x02, 0x0c, 0x02, 0x7f }, // M 0x4d 77 |
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| 71 | { 0x7f, 0x04, 0x08, 0x10, 0x7f }, // N 0x4e 78 |
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| 72 | { 0x3e, 0x41, 0x41, 0x41, 0x3e }, // O 0x4f 79 |
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| 73 | { 0x7f, 0x09, 0x09, 0x09, 0x06 }, // P 0x50 80 |
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| 74 | { 0x3e, 0x41, 0x51, 0x21, 0x5e }, // Q 0x51 81 |
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| 75 | { 0x7f, 0x09, 0x19, 0x29, 0x46 }, // R 0x52 82 |
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| 76 | { 0x46, 0x49, 0x49, 0x49, 0x31 }, // S 0x53 83 |
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| 77 | { 0x01, 0x01, 0x7f, 0x01, 0x01 }, // T 0x54 84 |
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| 78 | { 0x3f, 0x40, 0x40, 0x40, 0x3f }, // U 0x55 85 |
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| 79 | { 0x0f, 0x30, 0x40, 0x30, 0x0f }, // V 0x56 86 |
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| 80 | { 0x3f, 0x40, 0x30, 0x40, 0x3f }, // W 0x57 87 |
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| 81 | { 0x63, 0x14, 0x08, 0x14, 0x63 }, // X 0x58 88 |
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| 82 | { 0x07, 0x08, 0x70, 0x08, 0x07 }, // Y 0x59 89 |
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| 83 | { 0x61, 0x51, 0x49, 0x45, 0x43 }, // Z 0x5a 90 |
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| 84 | { 0x00, 0x00, 0x7f, 0x41, 0x00 }, // [ 0x5b 91 |
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| 85 | { 0x02, 0x04, 0x08, 0x10, 0x20 }, // \ 0x5c 92 |
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| 86 | { 0x00, 0x41, 0x7f, 0x00, 0x00 }, // ] 0x5d 93 |
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| 87 | { 0x04, 0x02, 0x01, 0x02, 0x04 }, // ^ 0x5e 94 |
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| 88 | { 0x40, 0x40, 0x40, 0x40, 0x40 }, // _ 0x5f 95 |
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| 89 | { 0x00, 0x00, 0x03, 0x04, 0x00 }, // ` 0x60 96 |
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| 90 | { 0x20, 0x54, 0x54, 0x54, 0x78 }, // a 0x61 97 |
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| 91 | { 0x7f, 0x48, 0x44, 0x44, 0x38 }, // b 0x62 98 |
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| 92 | { 0x38, 0x44, 0x44, 0x44, 0x44 }, // c 0x63 99 |
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| 93 | { 0x38, 0x44, 0x44, 0x48, 0x7f }, // d 0x64 100 |
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| 94 | { 0x38, 0x54, 0x54, 0x54, 0x18 }, // e 0x65 101 |
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| 95 | { 0x08, 0x7e, 0x09, 0x01, 0x02 }, // f 0x66 102 |
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| 96 | { 0x0c, 0x52, 0x52, 0x52, 0x3e }, // g 0x67 103 |
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| 97 | { 0x7f, 0x08, 0x04, 0x04, 0x78 }, // h 0x68 104 |
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| 98 | { 0x00, 0x44, 0x7d, 0x40, 0x00 }, // i 0x69 105 |
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| 99 | { 0x20, 0x40, 0x44, 0x3d, 0x00 }, // j 0x6a 106 |
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| 100 | { 0x00, 0x7f, 0x10, 0x28, 0x44 }, // k 0x6b 107 |
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| 101 | { 0x00, 0x41, 0x7f, 0x40, 0x00 }, // l 0x6c 108 |
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| 102 | { 0x7c, 0x04, 0x18, 0x04, 0x78 }, // m 0x6d 109 |
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| 103 | { 0x7c, 0x08, 0x04, 0x04, 0x78 }, // n 0x6e 110 |
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| 104 | { 0x38, 0x44, 0x44, 0x44, 0x38 }, // o 0x6f 111 |
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| 105 | { 0x7c, 0x14, 0x14, 0x14, 0x08 }, // p 0x70 112 |
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| 106 | { 0x08, 0x14, 0x14, 0x14, 0x7c }, // q 0x71 113 |
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| 107 | { 0x7c, 0x08, 0x04, 0x04, 0x08 }, // r 0x72 114 |
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| 108 | { 0x48, 0x54, 0x54, 0x54, 0x20 }, // s 0x73 115 |
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| 109 | { 0x04, 0x3f, 0x44, 0x40, 0x20 }, // t 0x74 116 |
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| 110 | { 0x3c, 0x40, 0x40, 0x20, 0x7c }, // u 0x75 117 |
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| 111 | { 0x1c, 0x20, 0x40, 0x20, 0x1c }, // v 0x76 118 |
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| 112 | { 0x3c, 0x40, 0x30, 0x40, 0x3c }, // w 0x77 119 |
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| 113 | { 0x44, 0x28, 0x10, 0x28, 0x44 }, // x 0x78 120 |
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| 114 | { 0x0c, 0x50, 0x50, 0x50, 0x3c }, // y 0x79 121 |
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| 115 | { 0x44, 0x64, 0x54, 0x4c, 0x44 }, // z 0x7a 122 |
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| 116 | { 0x00, 0x08, 0x36, 0x41, 0x41 }, // { 0x7b 123 |
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| 117 | { 0x00, 0x00, 0x7f, 0x00, 0x00 }, // | 0x7c 124 |
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| 118 | { 0x41, 0x41, 0x36, 0x08, 0x00 }, // } 0x7d 125 |
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| 119 | { 0x08, 0x0c, 0x08, 0x18, 0x08 }, // ~ 0x7e 126 |
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| 2 | mjames | 120 | |
| 3 | mjames | 121 | }; |
| 2 | mjames | 122 | |
| 123 | #define extDegrees 0 |
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| 124 | |||
| 3 | mjames | 125 | static const unsigned char font_ext[][5] = |
| 126 | { |
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| 2 | mjames | 127 | |
| 3 | mjames | 128 | [extDegrees] = |
| 129 | { 0x00, 0x06, 0x09, 0x06, 0x00 }, // a ° sign |
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| 2 | mjames | 130 | |
| 3 | mjames | 131 | }; |
| 2 | mjames | 132 | |
| 3 | mjames | 133 | void |
| 134 | font_gotoxy (uint8_t x, uint8_t y) |
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| 2 | mjames | 135 | { |
| 3 | mjames | 136 | cursor_x = x; |
| 137 | cursor_y = y; |
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| 2 | mjames | 138 | } |
| 139 | |||
| 3 | mjames | 140 | void |
| 141 | font_putchar (uint8_t c) |
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| 2 | mjames | 142 | { |
| 3 | mjames | 143 | uint8_t *ptr = display_address () + cursor_x * 6 + cursor_y * WIDTH; |
| 144 | int i; |
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| 145 | if ('\r' == c) |
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| 146 | { |
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| 147 | cursor_x = 0; |
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| 148 | cursor_y++; |
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| 149 | if (cursor_y >= HEIGHT / 8) |
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| 2 | mjames | 150 | { |
| 3 | mjames | 151 | cursor_y = 0; |
| 2 | mjames | 152 | } |
| 3 | mjames | 153 | return; |
| 154 | } |
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| 2 | mjames | 155 | |
| 3 | mjames | 156 | for (i = 0; i < 5; i++) |
| 157 | { |
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| 158 | if (c > ' ' && c < 0x80) |
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| 2 | mjames | 159 | { |
| 3 | mjames | 160 | *ptr++ = font[c - ' '][i]; |
| 2 | mjames | 161 | } |
| 3 | mjames | 162 | else if (c == '°') |
| 163 | { |
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| 164 | *ptr++ = font_ext[extDegrees][i]; |
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| 165 | } |
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| 166 | else |
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| 167 | { |
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| 168 | *ptr++ = 0; |
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| 169 | } |
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| 170 | } |
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| 171 | *ptr++ = 0; |
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| 2 | mjames | 172 | |
| 3 | mjames | 173 | // move cursor |
| 174 | cursor_x++; |
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| 175 | if (cursor_x >= WIDTH / 6) |
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| 176 | { |
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| 177 | cursor_x = 0; |
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| 178 | cursor_y++; |
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| 179 | if (cursor_y == HEIGHT / 8) |
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| 2 | mjames | 180 | { |
| 3 | mjames | 181 | cursor_y = 0; |
| 2 | mjames | 182 | } |
| 3 | mjames | 183 | } |
| 2 | mjames | 184 | |
| 185 | } |
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| 186 | |||
| 3 | mjames | 187 | void |
| 188 | font_puts (uint8_t *s) |
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| 2 | mjames | 189 | { |
| 3 | mjames | 190 | while (s && *s) |
| 191 | { |
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| 192 | font_putchar (*(s++)); |
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| 193 | } |
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| 2 | mjames | 194 | } |
| 195 | |||
| 3 | mjames | 196 | uint8_t |
| 197 | get_digits (uint16_t x, uint16_t y) |
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| 2 | mjames | 198 | { |
| 3 | mjames | 199 | return ((ascii_lucida_bits[(y * ascii_lucida_width) / 8 + (x / 8)]) >> (x & 7)) |
| 200 | & 1; |
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| 2 | mjames | 201 | } |
| 202 | |||
| 3 | mjames | 203 | static uint8_t |
| 204 | format_num (char *buff, uint8_t digits, uint8_t dp_pos, int val) |
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| 2 | mjames | 205 | { |
| 206 | digits++; |
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| 207 | uint8_t pos = digits; |
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| 208 | uint8_t dp_loc = pos - dp_pos; |
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| 209 | uint8_t sign = 0; |
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| 3 | mjames | 210 | if (val < 0) |
| 211 | { |
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| 212 | sign = 1; |
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| 213 | val = -val; |
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| 214 | } |
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| 2 | mjames | 215 | |
| 3 | mjames | 216 | buff[pos] = 0; |
| 2 | mjames | 217 | while (pos) |
| 3 | mjames | 218 | { |
| 219 | if (pos == dp_loc) |
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| 2 | mjames | 220 | { |
| 3 | mjames | 221 | buff[--pos] = '.'; |
| 2 | mjames | 222 | } |
| 3 | mjames | 223 | else |
| 2 | mjames | 224 | { |
| 3 | mjames | 225 | buff[--pos] = val % 10 + '0'; |
| 226 | val /= 10; |
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| 227 | if (val == 0 && pos < dp_loc) |
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| 228 | break; |
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| 2 | mjames | 229 | } |
| 3 | mjames | 230 | } |
| 231 | if (sign) |
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| 232 | { |
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| 233 | buff[--pos] = '-'; |
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| 234 | } |
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| 235 | return digits; |
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| 2 | mjames | 236 | } |
| 237 | |||
| 3 | mjames | 238 | void |
| 239 | font_digits (uint8_t digits, uint8_t dp_pos, int val) |
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| 2 | mjames | 240 | { |
| 3 | mjames | 241 | char buff[10] = " "; |
| 242 | format_num (buff, digits, dp_pos, val); |
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| 243 | font_puts ((unsigned char *)buff); |
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| 2 | mjames | 244 | } |
| 245 | |||
| 3 | mjames | 246 | void |
| 247 | font_sig_digits (uint8_t x, uint8_t y, uint8_t right_justify, uint8_t dp_pos, |
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| 248 | int val) |
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| 2 | mjames | 249 | { |
| 250 | char digits; |
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| 251 | char sign = 0; |
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| 252 | int uval; |
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| 253 | if (val < 0) |
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| 3 | mjames | 254 | { |
| 255 | uval = -val; |
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| 256 | sign = 1; // mark as negative |
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| 257 | } |
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| 2 | mjames | 258 | else |
| 3 | mjames | 259 | { |
| 260 | uval = val; |
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| 261 | } |
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| 262 | if (uval < 10) // always one digit for a sign or space, one for a digit |
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| 263 | { |
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| 264 | digits = 1; |
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| 265 | } |
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| 266 | if (uval >= 10 && uval < 100) |
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| 267 | { |
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| 268 | digits = 2; |
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| 269 | } |
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| 270 | if (uval >= 100 && uval < 1000) |
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| 271 | { |
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| 272 | digits = 3; |
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| 273 | } |
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| 274 | if (uval >= 1000) |
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| 275 | { |
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| 276 | digits = 4; |
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| 277 | } |
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| 2 | mjames | 278 | // backup for the - sign if right justified |
| 3 | mjames | 279 | if (right_justify) |
| 280 | { |
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| 281 | if (dp_pos < 10) |
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| 282 | { |
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| 283 | digits += 2; |
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| 284 | } |
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| 285 | else |
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| 286 | { |
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| 287 | digits += 1; |
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| 288 | } |
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| 289 | x -= (digits); |
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| 290 | } |
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| 2 | mjames | 291 | |
| 3 | mjames | 292 | font_gotoxy (x, y); |
| 293 | font_digits (digits, dp_pos, val); |
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| 2 | mjames | 294 | } |
| 295 | |||
| 296 | #define FONTX 10 |
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| 297 | #define FONTY 18 |
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| 298 | |||
| 3 | mjames | 299 | void |
| 300 | scan_xbm (void) |
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| 2 | mjames | 301 | { |
| 302 | |||
| 3 | mjames | 303 | int i, j; |
| 2 | mjames | 304 | |
| 3 | mjames | 305 | for (i = 0; i < FONTY; i++) |
| 306 | { |
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| 307 | for (j = 0; j < FONTX * 6; j++) |
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| 2 | mjames | 308 | { |
| 3 | mjames | 309 | drawPixel (j, i, get_digits (j, i)); |
| 2 | mjames | 310 | } |
| 3 | mjames | 311 | } |
| 2 | mjames | 312 | } |
| 313 | |||
| 3 | mjames | 314 | void |
| 315 | print_large_string (char *string, int x, int y, int digits) |
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| 2 | mjames | 316 | { |
| 3 | mjames | 317 | int xt, yt, j; |
| 318 | for (yt = 0; yt < FONTY; yt++) // iterate down scan lines |
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| 2 | mjames | 319 | { |
| 3 | mjames | 320 | for (xt = 0; xt < digits; xt++) |
| 321 | { |
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| 322 | for (j = 0; j < FONTX; j++) |
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| 323 | { |
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| 324 | unsigned char c = (string[xt] & 0x7F); |
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| 325 | if (c < 32) |
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| 326 | c = 32; |
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| 2 | mjames | 327 | |
| 3 | mjames | 328 | drawPixel (x + j + xt * FONTX, y + yt, |
| 329 | get_digits (j + (c - 32) * FONTX, yt)); |
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| 330 | } |
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| 2 | mjames | 331 | } |
| 3 | mjames | 332 | } |
| 2 | mjames | 333 | |
| 334 | } |
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| 335 | |||
| 3 | mjames | 336 | void |
| 337 | print_digits (uint8_t x, uint8_t y, uint8_t digits, uint8_t dp_pos, int val) |
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| 2 | mjames | 338 | { |
| 339 | |||
| 3 | mjames | 340 | char buff[10] = " "; |
| 341 | uint8_t len = format_num (buff, digits, dp_pos, val); |
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| 342 | print_large_string (buff, x, y, len); |
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| 2 | mjames | 343 | } |
| 344 | |||
| 345 | /* print a digit value 0 to 9 (not ASCII) rotated by ang */ |
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| 3 | mjames | 346 | void |
| 347 | print_rotated (uint8_t x, uint8_t y, int ang, uint8_t val) |
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| 2 | mjames | 348 | { |
| 3 | mjames | 349 | int co = ap_cos (ang); |
| 350 | int si = ap_sin (ang); |
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| 2 | mjames | 351 | |
| 3 | mjames | 352 | int xt, yt; |
| 2 | mjames | 353 | |
| 3 | mjames | 354 | for (yt = 0; yt < FONTY; yt++) // iterate down scan lines |
| 2 | mjames | 355 | { |
| 3 | mjames | 356 | for (xt = 0; xt < FONTX; xt++) |
| 357 | { |
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| 358 | if (get_digits (xt + (val + 16) * FONTX, yt)) |
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| 359 | { |
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| 360 | int cx = xt - FONTX / 2; |
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| 361 | int cy = yt - FONTY / 2; |
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| 2 | mjames | 362 | |
| 3 | mjames | 363 | int px = AP_SCALE(cx * co - cy * si); |
| 364 | int py = AP_SCALE(cx * si + cy * co); |
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| 2 | mjames | 365 | |
| 3 | mjames | 366 | drawPixel (x + px, y + py, WHITE); |
| 367 | } |
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| 368 | } |
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| 369 | } |
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| 2 | mjames | 370 | |
| 371 | } |
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| 372 |