com32/lib/sys/ansi.h

   1 /*
   2  * ansi.h
   3  */
   4
   5 #ifndef COM32_LIB_SYS_ANSI_H
   6 #define COM32_LIB_SYS_ANSI_H
   7
   8 #include <inttypes.h>
   9
  10 #define ANSI_MAX_PARMS  16
  11
  12 enum ansi_state {
  13   st_init,
  14   st_esc,
  15   st_csi,
  16   st_tbl,
  17   st_tblc,
  18 };
  19
  20 struct curxy {
  21   uint8_t x, y;
  22 } __attribute__((packed));
  23
  24 struct term_state {
  25   struct curxy xy;
  26   int attr;                     /* Current display attribute */
  27   int cindex;                   /* SOH color index */
  28   int vtgraphics;               /* VT graphics on/off */
  29   int intensity;
  30   int underline;
  31   int blink;
  32   int reverse;
  33   int fg;
  34   int bg;
  35   int autocr;
  36   struct curxy saved_xy;
  37   int cursor;
  38   enum ansi_state state;
  39   int pvt;                      /* Private code? */
  40   int nparms;                   /* Number of parameters seen */
  41   int parms[ANSI_MAX_PARMS];
  42 };
  43
  44
  45 struct ansi_ops {
  46   void (*erase)(const struct term_state *st, int x0, int y0, int x1, int y1);
  47   void (*write_char)(int x, int y, uint8_t ch, const struct term_state *st);
  48   void (*showcursor)(const struct term_state *st);
  49   void (*scroll_up)(const struct term_state *st);
  50   void (*set_cursor)(int x, int y, int visible);
  51 };
  52
  53 struct term_info {
  54   int rows, cols;               /* Screen size */
  55   int disabled;
  56   struct term_state *ts;
  57   const struct ansi_ops *op;
  58 };
  59
  60 void __ansi_init(const struct term_info *ti);
  61 void __ansi_putchar(const struct term_info *ti, uint8_t ch);
  62
  63 #endif /* COM32_LIB_SYS_ANSI_H */