/*
 *  JOURNAL.H  -  Common header file for JOURNAL.C and PLAYBACK.C
 *
 *             Copyright (c) 1987 by Davide P. Cervone
 *  You may use this code provided this copyright notice is kept intact.
 */

#include <libraries/dos.h>
#include <exec/io.h>
#include <exec/interrupts.h>
#include <exec/memory.h>
#include <devices/input.h>
#include <devices/inputevent.h>
#include <stdio.h>

#define ONE         1L

extern struct MsgPort *CreatePort();
extern struct IOStdReq *CreateStdIO();
extern LONG AllocSignal(), Wait(), SetSignal();
extern struct Task *FindTask();
extern struct InputEvent *AllocMem();
extern FILE *fopen();
extern long errno, _OSERR;              /* Lattice and DOS error numbers */

extern void RemoveHandler();            /* defined later on */

/*
 *  assembly routine that gets called by the Input.Device which sets up
 *  the stack and calls our input handler
 */
extern void myHandlerStub();


/*
 *  Structure used to pack event data into a small space.  This is the 
 *  format used to record that data in the journal file */

struct SmallEvent
{
   union
   {
      struct
      {
         UBYTE se_IDType;   /* ie_Class and ie_Code combined */
         UBYTE se_Raw;      /* RawKey Code */
         UWORD se_PrevChar; /* previous key and qualifier */
      } se_ID;
      ULONG se_XYpos;       /* X in bits 0-11, Y in 12-23 (ie_Type in 24-31) */
   } se_Long1;
   UWORD se_Qualifier;
   ULONG se_Long2;          /* Micros in 0-19, Ticks in 20-32 */
};
#define se_Type   se_Long1.se_ID.se_IDType
#define se_Code   se_Long1.se_ID.se_Raw
#define se_Prev   se_Long1.se_ID.se_PrevChar
#define se_XY     se_Long1.se_XYpos
#define se_Ticks  se_Long2
#define se_Micros se_Long2
#define se_Count  se_Long2

/*
 *  Some shorthands for InputEvent fields
 */
#define my_Prev   ie_X
#define my_Time   ie_Secs                   /* micros since last event */
#define my_Ticks  ie_Mics                   /* ticks since last event */
#define my_Ready  ie_NextEvent              /* TRUE when it can be posted */
#define my_InUse  ie_Class                  /* TRUE when it is in use */
#define my_Saved  ie_SubClass               /* TRUE if is has been recorded */
#define my_Count  my_Time                   /* number of compressed events */
#define ie_Secs   ie_TimeStamp.tv_secs
#define ie_Mics   ie_TimeStamp.tv_micro

#define COUNTMASK 0x3F                      /* how much of my_Count is count */
#define READY     ((struct InputEvent *) TRUE)
#define TIME      (theEvent->ie_Mics-TimerMics)
#define MILLION   1000000

#define XMINMOUSE      xminmove
#define YMINMOUSE      yminmove
#define XDEFMIN        8                    /* default DX */
#define YDEFMIN        8                    /* default DY */
#define LONGTIME       8                    /* if this many ticks occur, we */
                                            /*   write out a dummy move to */
                                            /*   record the pause */    

#define IE_SIZE        sizeof(struct InputEvent)
#define NEWEVENT       AllocMem(IE_SIZE,0)
#define FREEVENT(ev)   FreeMem(ev,IE_SIZE)

#define SIGBREAKF_ANY  (SIGBREAKF_CTRL_C | SIGBREAKF_CTRL_D |\
                        SIGBREAKF_CTRL_E | SIGBREAKF_CTRL_F)