/* Terminal emulator μlibrary, implementing most of the ADM3A. */
/* #include <stdint.h> before this file. */

typedef struct _admu admu;

/* Call this to initialize an admu struct you have allocated with a
 * cols*rows buffer you have allocated.
 */
void admu_init(admu *t, int cols, int rows, unsigned char *screenchars);
/* Call this to draw the terminal into a framebuffer with one uint32_t
 * per pixel.  stride is normally equal to width, unless if there are
 * extra “horizontal overscan” pixels in between the scan lines; it’s
 * the number of `uint32_t`s from the beginning of one scan line to
 * the beginning of the next.
 */
void admu_generate_chars(admu *t, uint32_t *fb, int width, int stride, int height);
/* Call this to make the terminal respond to a received character. */
void admu_handle_char(admu *t, unsigned char c);

/* This is the size of the font admu uses, in pixels. */

enum { admu_font_w = 5, admu_font_h = 8 };

struct _admu {
  unsigned char *screenchars;
  int cursor_pos, rows, cols, pending_cup;
  enum { admu_ready, admu_esc, admu_cup, admu_cup2 } state;
  uint32_t font[256][admu_font_h][admu_font_w];
};