3.2 Glyph Entry Format (16 bytes)

typedef struct {
    uint16_t tex_x;       /* Texture X offset */
    uint16_t tex_y;       /* Texture Y offset */
    uint8_t  tex_w;       /* Glyph width in texture */
    uint8_t  tex_h;       /* Glyph height in texture */
    int8_t   bearing_x;   /* X offset from baseline */
    int8_t   bearing_y;   /* Y offset from baseline */
    uint8_t  advance;     /* Advance to next character */
    uint8_t  reserved;    /* Reserved for future use */
} d3f_glyph_t;