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/*
 * vt102.h:
 *
 * Copyright (c) 2008 James McKenzie <james@fishsoup.dhs.org>,
 * All rights reserved.
 *
 */

/*
 * $Id$
 */

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 */

#ifndef __VT102_H__
#define __VT102_H__

#define VT102_CMD_LEN 128

#define VT102_MAX_ROWS		((CRT_ROWS) - 1)
#define VT102_ROWS_24		24
#define VT102_COLS_132		132
#define VT102_COLS_80		80
#define VT102_MAX_COLS		VT102_COLS_132
#define VT102_STATUS_ROW	24

#define VT102_NMODES		32


typedef struct
{
  int in_escape;
  int in_cmd;

  int cmd_ptr;
  int cmd_more_bytes;
  int cmd_termination;
  char cmd_buf[VT102_CMD_LEN];
} VT102_parser;

typedef struct
{
  CRT_Pos pos;
  int attr;
  int color;
  int origin_mode;
} VT102_State;


typedef struct
{
  CRT_Pos top_margin, bottom_margin;
  CRT_Pos screen_start, screen_end;
  VT102_parser parser;
  int attr;
  int color;
  CRT crt;

  int pending_wrap;
  CRT_Pos pos, current_line;

  VT102_State saved;

  uint8_t modes[VT102_NMODES];
  uint8_t private_modes[VT102_NMODES];

  uint8_t tabs[VT102_COLS_132];

  int application_keypad_mode;

  int last_reg_char;
  int xn_glitch;

  CRT_Pos current_size;
  CRT_Pos original_size;

  int g[2];
  int cs;

} VT102;

#define VT102_PRIVATE_MODE_CURSOR_MODE		1
#define VT102_PRIVATE_MODE_VT52	 		2
#define VT102_PRIVATE_MODE_132COLS	 	3
#define VT102_PRIVATE_MODE_SMOOTH_SCROLL 	4
#define VT102_PRIVATE_MODE_REVERSE_SCREEN 	5
#define VT102_PRIVATE_MODE_ORIGIN_MODE		6
#define VT102_PRIVATE_MODE_AUTO_WRAP		7
#define VT102_PRIVATE_MODE_AUTO_REPEAT		8
#define VT102_PRIVATE_MODE_SHOW_CURSOR		25

#define VT102_MODE_KEYBOARD_DISABLE		2
#define VT102_MODE_INSERT			4
#define VT102_MODE_LOCAL_ECHO_OFF		12
#define VT102_MODE_NEWLINE_MODE			20

#endif /* __VT102_H__ */