/*
   myheader.h - Useful #defines and typedefs for tool/accessory programs.
*/

#ifndef MYHEADER_H
#define MYHEADER_H

/* Length of tool/accessory id. */
#define ID_LEN 4

/* Make an id out of four characters. */
#define MAKE_ID(a, b, c, d)     ((ULONG) ((((a << 8) + b << 8) + c << 8) + d))

/* Make an id out of a string. */
#define MAKE_IDS(s)             (MAKE_ID(s[0], s[1], s[2], s[3]))

/* Split an id into four characters. */
#define SPLIT_ID(id, a, b, c, d)        \
do {                                    \
  a = (UBYTE) ((id >> 24) & 0xff);      \
  b = (UBYTE) ((id >> 16) & 0xff);      \
  c = (UBYTE) ((id >> 8) & 0xff);       \
  d = (UBYTE) (id & 0xff);              \
} while (0)

/* Split an id into a string. */
#define SPLIT_IDS(id, s)                \
do {                                    \
  SPLIT_ID(id, s[0], s[1], s[2], s[3]); \
} while (0)

/* Maximum MIDI note # */
#define MIDI_NOTE_MAX (127)

/* Number of MIDI notes. */
#define MIDI_NOTE_NUM (MIDI_NOTE_MAX + 1)

/* Maximum program change number. */
#define PC_CHANGE_MAX 127

/* Number of program changes. */
#define PC_CHANGE_NUM (PC_CHANGE_MAX + 1)

/* Maximum CC value. */
#define CC_VALUE_MAX 127

/* Number of CC values. */
#define CC_VALUE_NUM (CC_VALUE_MAX + 1)
  
/* Flags for use in the BRB file requester. */
#define FILES_DELETE    1               /* Delete button */
#define FILES_OPEN      2               /* Open button */
#define FILES_SAVE      4               /* Save button */
#define FILES_TEST      8               /* ??? */
#define FILES_TYPE      16              /* Type string gadget */
#define FILES_PATH      32              /* Path string gadget */

/* Initial placement of tool/accessory windows. */
#define INITIAL_LEFT    50
#define INITIAL_TOP     50

/* Unprototyping cast. */
typedef long (*no_prototype)();

/* Void cast. */
typedef void (*void_prototype)();

/* Event *cast. */
typedef struct Event *(*event_prototype)();

/* For non-stdio debugging messages. */
#define DEBUG(message)                                          \
do {                                                            \
  struct EasyStruct es = {                                      \
    sizeof(struct EasyStruct),                                  \
    0,                                                          \
    "Debugging information",                                    \
    "Message: %s",                                              \
    "OK"                                                        \
    };                                                          \
  (void) EasyRequest(functions->window, &es, 0, message);       \
} while (0)

#define NOTE_LENGTH(x)  (768 >> (x))

#define MBC_STRING_LENGTH 12

#define CLOCKSPERMEASURE 768L

#define STREQ(x, y) (strcmp((x), (y)) == 0)
#define STREQN(x, y, n) (strncmp((x), (y), (n)) == 0)

#endif  /* MYHEADER_H */