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#ifndef ECHO_H
#define ECHO_H
/*
* Macros used to define instrument lists
* Yeah, this thing is a mess
*/
#define ECHO_LIST_START(name) \
static const unsigned char name[] = {
#define ECHO_LIST_ENTRY(addr) \
((unsigned long)(addr) >> 8 & 0x7F) | 0x80, \
(unsigned long)(addr) & 0xFF, \
((unsigned long)(addr) >> 15 & 0x7F) | \
((unsigned long)(addr) >> 16 & 0x80)),
#define ECHO_LIST_END \
0x00 };
/* Echo commands */
enum {
ECHO_CMD_NONE, /* 0x00 - No command */
ECHO_CMD_LOADLIST, /* 0x01 - Load instrument list */
ECHO_CMD_PLAYSFX, /* 0x02 - Play a SFX */
ECHO_CMD_STOPSFX, /* 0x03 - Stop SFX playback */
ECHO_CMD_PLAYBGM, /* 0x04 - Play a BGM */
ECHO_CMD_STOPBGM /* 0x05 - Stop BGM playback */
};
/* Echo status flags */
#define ECHO_STAT_BGM 0x0001 /* Background music is playing */
#define ECHO_STAT_SFX 0x0002 /* Sound effect is playing */
#define ECHO_STAT_BUSY 0x8000 /* Echo still didn't parse command */
/* Function prototypes */
void echo_play_bgm(const void *);
void echo_stop_bgm(void);
void echo_play_sfx(const void *);
void echo_stop_sfx(void);
unsigned short echo_get_status(void);
void echo_send_command(unsigned char);
void echo_send_command_ex(unsigned char, const void *);
#endif
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