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3 | 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 "ap_math.h" |
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11 | #include "SSD1306.h" |
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12 | |||
13 | |||
14 | |||
15 | #include "ascii-lucida.h" |
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16 | |||
17 | |||
18 | uint8_t cursor_x; |
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19 | uint8_t cursor_y; |
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20 | |||
21 | |||
22 | #include "Font.h" |
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23 | /* |
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24 | * display text using a 5x7 bitmap font in ASCII letters |
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25 | */ |
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26 | static const unsigned char font [] [5] = { |
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27 | { 0x00,0x00,0x00,0x00,0x00 }, // 0x20 32 |
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28 | { 0x00,0x00,0x6f,0x00,0x00 }, // ! 0x21 33 |
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29 | { 0x00,0x07,0x00,0x07,0x00 }, // " 0x22 34 |
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30 | { 0x14,0x7f,0x14,0x7f,0x14 }, // # 0x23 35 |
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31 | // { 0x00,0x07,0x04,0x1e,0x00 }, // $ 0x24 36 |
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32 | {0x2e, 0x2a, 0xff, 0x2a, 0x3a}, |
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33 | { 0x23,0x13,0x08,0x64,0x62 }, // % 0x25 37 |
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34 | { 0x36,0x49,0x56,0x20,0x50 }, // & 0x26 38 |
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35 | { 0x00,0x00,0x07,0x00,0x00 }, // ' 0x27 39 |
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36 | { 0x00,0x1c,0x22,0x41,0x00 }, // ( 0x28 40 |
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37 | { 0x00,0x41,0x22,0x1c,0x00 }, // ) 0x29 41 |
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38 | { 0x14,0x08,0x3e,0x08,0x14 }, // * 0x2a 42 |
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39 | { 0x08,0x08,0x3e,0x08,0x08 }, // + 0x2b 43 |
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40 | { 0x00,0x50,0x30,0x00,0x00 }, // , 0x2c 44 |
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41 | { 0x08,0x08,0x08,0x08,0x08 }, // - 0x2d 45 |
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42 | { 0x00,0x60,0x60,0x00,0x00 }, // . 0x2e 46 |
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43 | { 0x20,0x10,0x08,0x04,0x02 }, // / 0x2f 47 |
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44 | { 0x3e,0x51,0x49,0x45,0x3e }, // 0 0x30 48 |
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45 | { 0x00,0x42,0x7f,0x40,0x00 }, // 1 0x31 49 |
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46 | { 0x42,0x61,0x51,0x49,0x46 }, // 2 0x32 50 |
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47 | { 0x21,0x41,0x45,0x4b,0x31 }, // 3 0x33 51 |
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48 | { 0x18,0x14,0x12,0x7f,0x10 }, // 4 0x34 52 |
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49 | { 0x27,0x45,0x45,0x45,0x39 }, // 5 0x35 53 |
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50 | { 0x3c,0x4a,0x49,0x49,0x30 }, // 6 0x36 54 |
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51 | { 0x01,0x71,0x09,0x05,0x03 }, // 7 0x37 55 |
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52 | { 0x36,0x49,0x49,0x49,0x36 }, // 8 0x38 56 |
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53 | { 0x06,0x49,0x49,0x29,0x1e }, // 9 0x39 57 |
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54 | { 0x00,0x36,0x36,0x00,0x00 }, // : 0x3a 58 |
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55 | { 0x00,0x56,0x36,0x00,0x00 }, // ; 0x3b 59 |
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56 | { 0x08,0x14,0x22,0x41,0x00 }, // < 0x3c 60 |
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57 | { 0x14,0x14,0x14,0x14,0x14 }, // = 0x3d 61 |
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58 | { 0x00,0x41,0x22,0x14,0x08 }, // > 0x3e 62 |
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59 | { 0x02,0x01,0x51,0x09,0x06 }, // ? 0x3f 63 |
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60 | { 0x3e,0x41,0x5d,0x49,0x4e }, // @ 0x40 64 |
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61 | { 0x7e,0x09,0x09,0x09,0x7e }, // A 0x41 65 |
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62 | { 0x7f,0x49,0x49,0x49,0x36 }, // B 0x42 66 |
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63 | { 0x3e,0x41,0x41,0x41,0x22 }, // C 0x43 67 |
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64 | { 0x7f,0x41,0x41,0x41,0x3e }, // D 0x44 68 |
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65 | { 0x7f,0x49,0x49,0x49,0x41 }, // E 0x45 69 |
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66 | { 0x7f,0x09,0x09,0x09,0x01 }, // F 0x46 70 |
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67 | { 0x3e,0x41,0x49,0x49,0x7a }, // G 0x47 71 |
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68 | { 0x7f,0x08,0x08,0x08,0x7f }, // H 0x48 72 |
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69 | { 0x00,0x41,0x7f,0x41,0x00 }, // I 0x49 73 |
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70 | { 0x20,0x40,0x41,0x3f,0x01 }, // J 0x4a 74 |
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71 | { 0x7f,0x08,0x14,0x22,0x41 }, // K 0x4b 75 |
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72 | { 0x7f,0x40,0x40,0x40,0x40 }, // L 0x4c 76 |
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73 | { 0x7f,0x02,0x0c,0x02,0x7f }, // M 0x4d 77 |
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74 | { 0x7f,0x04,0x08,0x10,0x7f }, // N 0x4e 78 |
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75 | { 0x3e,0x41,0x41,0x41,0x3e }, // O 0x4f 79 |
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76 | { 0x7f,0x09,0x09,0x09,0x06 }, // P 0x50 80 |
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77 | { 0x3e,0x41,0x51,0x21,0x5e }, // Q 0x51 81 |
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78 | { 0x7f,0x09,0x19,0x29,0x46 }, // R 0x52 82 |
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79 | { 0x46,0x49,0x49,0x49,0x31 }, // S 0x53 83 |
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80 | { 0x01,0x01,0x7f,0x01,0x01 }, // T 0x54 84 |
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81 | { 0x3f,0x40,0x40,0x40,0x3f }, // U 0x55 85 |
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82 | { 0x0f,0x30,0x40,0x30,0x0f }, // V 0x56 86 |
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83 | { 0x3f,0x40,0x30,0x40,0x3f }, // W 0x57 87 |
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84 | { 0x63,0x14,0x08,0x14,0x63 }, // X 0x58 88 |
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85 | { 0x07,0x08,0x70,0x08,0x07 }, // Y 0x59 89 |
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86 | { 0x61,0x51,0x49,0x45,0x43 }, // Z 0x5a 90 |
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87 | // { 0x3c,0x4a,0x49,0x29,0x1e }, // [ 0x5b 91 |
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88 | { 0x00,0x00,0x7f,0x41,0x00 }, |
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89 | { 0x02,0x04,0x08,0x10,0x20 }, // \ 0x5c 92 |
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90 | { 0x00,0x41,0x7f,0x00,0x00 }, // ] 0x5d 93 |
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91 | { 0x04,0x02,0x01,0x02,0x04 }, // ^ 0x5e 94 |
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92 | { 0x40,0x40,0x40,0x40,0x40 }, // _ 0x5f 95 |
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93 | { 0x00,0x00,0x03,0x04,0x00 }, // ` 0x60 96 |
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94 | { 0x20,0x54,0x54,0x54,0x78 }, // a 0x61 97 |
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95 | { 0x7f,0x48,0x44,0x44,0x38 }, // b 0x62 98 |
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96 | // { 0x38,0x44,0x44,0x44,0x20 }, // c 0x63 99 |
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97 | { 0x38,0x44,0x44,0x44,0x44 }, |
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98 | { 0x38,0x44,0x44,0x48,0x7f }, // d 0x64 100 |
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99 | { 0x38,0x54,0x54,0x54,0x18 }, // e 0x65 101 |
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100 | { 0x08,0x7e,0x09,0x01,0x02 }, // f 0x66 102 |
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101 | { 0x0c,0x52,0x52,0x52,0x3e }, // g 0x67 103 |
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102 | { 0x7f,0x08,0x04,0x04,0x78 }, // h 0x68 104 |
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103 | { 0x00,0x44,0x7d,0x40,0x00 }, // i 0x69 105 |
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104 | { 0x20,0x40,0x44,0x3d,0x00 }, // j 0x6a 106 |
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105 | { 0x00,0x7f,0x10,0x28,0x44 }, // k 0x6b 107 |
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106 | { 0x00,0x41,0x7f,0x40,0x00 }, // l 0x6c 108 |
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107 | { 0x7c,0x04,0x18,0x04,0x78 }, // m 0x6d 109 |
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108 | { 0x7c,0x08,0x04,0x04,0x78 }, // n 0x6e 110 |
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109 | { 0x38,0x44,0x44,0x44,0x38 }, // o 0x6f 111 |
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110 | { 0x7c,0x14,0x14,0x14,0x08 }, // p 0x70 112 |
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111 | // { 0x08,0x14,0x14,0x18,0x7c }, // q 0x71 113 |
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112 | { 0x08,0x14,0x14,0x14,0x7c }, |
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113 | { 0x7c,0x08,0x04,0x04,0x08 }, // r 0x72 114 |
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114 | { 0x48,0x54,0x54,0x54,0x20 }, // s 0x73 115 |
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115 | { 0x04,0x3f,0x44,0x40,0x20 }, // t 0x74 116 |
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116 | { 0x3c,0x40,0x40,0x20,0x7c }, // u 0x75 117 |
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117 | { 0x1c,0x20,0x40,0x20,0x1c }, // v 0x76 118 |
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118 | { 0x3c,0x40,0x30,0x40,0x3c }, // w 0x77 119 |
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119 | { 0x44,0x28,0x10,0x28,0x44 }, // x 0x78 120 |
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120 | { 0x0c,0x50,0x50,0x50,0x3c }, // y 0x79 121 |
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121 | { 0x44,0x64,0x54,0x4c,0x44 }, // z 0x7a 122 |
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122 | { 0x00,0x08,0x36,0x41,0x41 }, // { 0x7b 123 |
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123 | { 0x00,0x00,0x7f,0x00,0x00 }, // | 0x7c 124 |
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124 | { 0x41,0x41,0x36,0x08,0x00 }, // } 0x7d 125 |
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125 | // { 0x04,0x02,0x04,0x08,0x04 }, // ~ 0x7e 126 |
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126 | { 0x08,0x0c,0x08,0x18,0x08 }, |
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127 | |||
128 | |||
129 | |||
130 | }; |
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131 | |||
132 | #define extDegrees 0 |
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133 | |||
134 | static const unsigned char font_ext[] [5] = |
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135 | { |
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136 | |||
137 | [extDegrees] = { 0x00,0x06,0x09,0x06,0x00 }, // a ° sign |
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138 | |||
139 | }; |
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140 | |||
141 | |||
142 | |||
143 | |||
144 | void font_gotoxy(uint8_t x,uint8_t y) |
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145 | { |
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146 | cursor_x=x; |
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147 | cursor_y=y; |
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148 | } |
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149 | |||
150 | void font_putchar(uint8_t c) |
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151 | { |
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152 | uint8_t * ptr = &display_buffer[0] + cursor_x*6 + cursor_y * WIDTH; |
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153 | int i; |
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154 | if('\r'==c) |
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155 | { |
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156 | cursor_x = 0; |
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157 | cursor_y++; |
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158 | if(cursor_y >= HEIGHT/8) |
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159 | { |
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160 | cursor_y = 0; |
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161 | } |
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162 | return; |
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163 | } |
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164 | |||
165 | |||
166 | for(i=0;i<5;i++) |
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167 | { |
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168 | if(c>' ' && c<0x80) |
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169 | { |
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170 | *ptr++ = font[c-' '][i]; |
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171 | } |
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172 | else if(c=='°') |
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173 | { |
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174 | *ptr++ = font_ext[extDegrees][i]; |
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175 | } |
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176 | else |
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177 | { |
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178 | *ptr++ = 0; |
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179 | } |
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180 | } |
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181 | *ptr++=0; |
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182 | |||
183 | // move cursor |
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184 | cursor_x++; |
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185 | if(cursor_x >= WIDTH/6) |
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186 | { |
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187 | cursor_x=0; |
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188 | cursor_y++; |
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189 | if(cursor_y==HEIGHT/8) |
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190 | { |
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191 | cursor_y = 0; |
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192 | } |
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193 | } |
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194 | |||
195 | } |
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196 | |||
197 | |||
198 | |||
199 | void font_puts(uint8_t * s) |
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200 | { |
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201 | while(s && *s) |
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202 | { |
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203 | font_putchar(*(s++)); |
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204 | } |
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205 | } |
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206 | |||
207 | |||
208 | uint8_t get_digits(uint16_t x, uint16_t y) |
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209 | { |
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210 | return ((ascii_lucida_bits[(y*ascii_lucida_width)/8+(x/8)])>>(x&7)) & 1 ; |
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211 | } |
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212 | |||
213 | |||
214 | static uint8_t format_num(char * buff, uint8_t digits,uint8_t dp_pos,int val) |
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215 | { |
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216 | digits++; |
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217 | uint8_t pos = digits; |
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218 | uint8_t dp_loc = pos - dp_pos; |
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219 | uint8_t sign = 0; |
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220 | if(val<0) |
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221 | { |
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222 | sign = 1; |
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223 | val = -val; |
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224 | } |
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225 | |||
226 | buff[pos]=0; |
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227 | while (pos) |
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228 | { |
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229 | if(pos == dp_loc ) |
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230 | { |
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231 | buff[--pos]='.'; |
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232 | } |
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233 | else |
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234 | { |
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235 | buff[--pos] = val%10 + '0'; |
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236 | val/=10; |
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237 | if(val==0 && pos< dp_loc) |
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238 | break; |
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239 | } |
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240 | } |
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241 | if(sign) |
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242 | { |
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243 | buff[--pos] = '-'; |
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244 | } |
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245 | return digits; |
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246 | } |
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247 | |||
248 | |||
249 | void font_digits( uint8_t digits,uint8_t dp_pos, int val) |
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250 | { |
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251 | char buff[10] = " "; |
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252 | uint8_t len = format_num(buff, digits,dp_pos,val); |
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253 | font_puts(buff); |
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254 | } |
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255 | |||
256 | |||
257 | void font_sig_digits(uint8_t x, uint8_t y,uint8_t right_justify,uint8_t dp_pos, int val) |
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258 | { |
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259 | char digits; |
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260 | char sign = 0; |
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261 | int uval; |
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262 | if (val < 0) |
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263 | { |
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264 | uval = -val; |
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265 | sign = 1; // mark as negative |
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266 | } |
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267 | else |
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268 | { |
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269 | uval = val; |
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270 | } |
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271 | if(uval<10) // always one digit for a sign or space, one for a digit |
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272 | { |
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273 | digits = 1; |
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274 | } |
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275 | if(uval>=10 && uval <100) |
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276 | { |
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277 | digits = 2; |
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278 | } |
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279 | if(uval>=100 && uval < 1000) |
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280 | { |
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281 | digits =3; |
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282 | } |
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283 | if(uval>=1000) |
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284 | { |
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285 | digits=4; |
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286 | } |
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287 | // backup for the - sign if right justified |
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288 | if(right_justify) |
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289 | { |
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290 | if(dp_pos<10) |
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291 | { |
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292 | digits+=2; |
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293 | } |
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294 | else |
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295 | { |
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296 | digits+=1; |
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297 | } |
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298 | x-=(digits); |
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299 | } |
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300 | |||
301 | |||
302 | font_gotoxy(x,y); |
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303 | font_digits(digits,dp_pos,val); |
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304 | } |
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305 | |||
306 | |||
307 | #define FONTX 10 |
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308 | #define FONTY 18 |
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309 | |||
310 | |||
311 | void scan_xbm(void) |
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312 | { |
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313 | |||
314 | int i,j; |
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315 | |||
316 | for(i=0; i< FONTY;i++) |
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317 | { |
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318 | for(j=0;j<FONTX*6;j++) |
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319 | { |
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320 | drawPixel(j, i, get_digits(j,i)) ; |
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321 | } |
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322 | } |
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323 | } |
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324 | |||
325 | void print_large_string(char * string, int x, int y, int digits) |
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326 | { |
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327 | int xt,yt,j; |
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328 | for(yt=0;yt<FONTY;yt++) // iterate down scan lines |
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329 | { |
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330 | for(xt=0;xt<digits;xt++) |
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331 | { |
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332 | for(j=0;j<FONTX;j++) |
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333 | { |
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334 | unsigned char c = (string[xt] & 0x7F); |
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335 | if(c<32) |
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336 | c= 32; |
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337 | |||
338 | drawPixel(x+j+xt*FONTX, y+yt, get_digits(j+(c-32)*FONTX,yt)) ; |
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339 | } |
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340 | } |
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341 | } |
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342 | |||
343 | } |
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344 | |||
345 | void print_digits(uint8_t x, uint8_t y, uint8_t digits,uint8_t dp_pos, int val) |
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346 | { |
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347 | |||
348 | |||
349 | char buff[10] = " "; |
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350 | uint8_t len = format_num(buff, digits,dp_pos,val); |
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351 | print_large_string(buff,x,y,len); |
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352 | } |
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353 | |||
354 | |||
355 | |||
356 | |||
357 | |||
358 | |||
359 | /* print a digit value 0 to 9 (not ASCII) rotated by ang */ |
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360 | void print_rotated(uint8_t x, uint8_t y, int ang, uint8_t val) |
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361 | { |
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362 | int co=ap_cos(ang); |
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363 | int si=ap_sin(ang); |
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364 | |||
365 | int xt,yt; |
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366 | |||
367 | for(yt=0;yt<FONTY;yt++) // iterate down scan lines |
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368 | { |
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369 | for(xt=0;xt<FONTX;xt++) |
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370 | { |
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371 | if(get_digits(xt+(val+16)*FONTX,yt)) |
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372 | { |
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373 | int cx = xt-FONTX/2; |
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374 | int cy = yt-FONTY/2; |
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375 | |||
376 | int px = AP_SCALE(cx*co - cy*si); |
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377 | int py = AP_SCALE(cx*si + cy*co); |
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378 | |||
379 | drawPixel(x+px, y+py,WHITE) ; |
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380 | } |
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381 | } |
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382 | } |
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383 | |||
384 | |||
385 | |||
386 | |||
387 | |||
388 | } |
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389 | |||
390 | |||
391 | |||
392 |