1 | /** Font header data offsets:
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2 | All Font header data is uncompressed */
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3 | enum u8g2_font_header_offset_e
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4 | {
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5 | u8g2_font_header_offset_number_of_glyphs = 0,
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6 | u8g2_font_header_offset_bounding_box_mode = 1,
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7 | u8g2_font_header_offset_bits_per_0 = 2, /**< Encoding run lenght (Zeros) */
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8 | u8g2_font_header_offset_bits_per_1 = 3, /**< Encoding run lenght (Ones) */
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9 |
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10 | /* Encoding lengths of glyph bounding box components */
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11 | u8g2_font_header_offset_bits_per_char_width = 4,
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12 | u8g2_font_header_offset_bits_per_char_height = 5,
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13 | u8g2_font_header_offset_bits_per_char_x = 6,
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14 | u8g2_font_header_offset_bits_per_char_y = 7,
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15 | u8g2_font_header_offset_bits_per_delta_x = 8,
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16 |
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17 | /* Font Bounding box; bytes are int8_t */
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18 | u8g2_font_header_offset_max_char_width = 9,
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19 | u8g2_font_header_offset_max_char_height = 10,
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20 | u8g2_font_header_offset_x_offset = 11,
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21 | u8g2_font_header_offset_y_offset = 12,
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22 |
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23 | /* Ascent and Descent of selected characters 'A', 'g' and '(' for specifc
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24 | calculation of line pitch
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25 | bytes are int8_t */
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26 | u8g2_font_header_offset_ascent_A = 13,
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27 | u8g2_font_header_offset_descent_g = 14,
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28 | u8g2_font_header_offset_ascent_parenthesis = 15,
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29 | u8g2_font_header_offset_descent_parenthesis = 16,
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30 |
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31 | /* Start Posistion (Offset) of specific Glyphs ('A', 'a', 255) in Font Array.
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32 | This accelerates search for the correct glyph. Would still work, if all
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33 | zeroes, thus slower */
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34 | u8g2_font_header_offset_start_pos_upper_A = 17, /**< Glyphs starting from 'A' */
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35 | u8g2_font_header_offset_start_pos_lower_a = 19, /**< Glyphs starting from 'a' */
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36 | u8g2_font_header_offset_start_pos_unicode = 21, /**< Glyphs starting from 255 */
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37 | };
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