#ifndef _LIBMUS_H_
#define _LIBMUS_H_

#include <ultra64.h>

#ifdef _LANGUAGE_C_PLUS_PLUS
extern "C" {
#endif

typedef struct {
  unsigned long control_flag;

  int channels;
  void *sched;
  int thread_priority;
  unsigned char *heap;
  int heap_length;

  unsigned char *ptr;
  unsigned char *wbk;

  void *default_fxbank;

  int fifo_length;

  int syn_updates;
  int syn_output_rate;
  int syn_rsp_cmds;
  int syn_retraceCount;
  int syn_num_dma_bufs;
  int syn_dma_buf_size;

  OSPiHandle *diskrom_handle;
} musConfig;

typedef enum { 
    MUSBOOL_OFF, 
    MUSBOOL_ON 
} musBool;

typedef struct {
  u64 *data;
  int data_size;
  u64 *ucode;
  u64 *ucode_data;
} musTask;

typedef unsigned long musHandle;

typedef void (*LIBMUScb_marker)(musHandle, int);
typedef void (*LIBMUScb_install)(void);
typedef void (*LIBMUScb_waitframe)(void);
typedef void (*LIBMUScb_dotask)(musTask *);

typedef struct {
  LIBMUScb_install install;     
  LIBMUScb_waitframe waitframe; 
  LIBMUScb_dotask dotask;       
} musSched;

#define MUSCONTROL_RAM (1 << 0)

#define MUSFLAG_EFFECTS 1
#define MUSFLAG_SONGS 2

extern int MusInitialize(musConfig *config);

extern int MusSetFxType(int fxtype);
extern int MusSetSongFxChange(musBool onoff);

extern void MusSetMasterVolume(unsigned long flags, int volume);

extern musHandle MusStartSong(void *addr);
extern musHandle MusStartSongFromMarker(void *addr, int marker);
extern musHandle MusStartEffect(int number);
extern musHandle MusStartEffect2(int number, int volume, int pan,
                                 int restartflag, int priority);

extern void MusStop(unsigned long flags, int speed);
extern int MusAsk(unsigned long flags);

extern int MusHandleAsk(musHandle handle);
extern int MusHandleStop(musHandle handle, int speed);
extern int MusHandleSetVolume(musHandle handle, int volume);
extern int MusHandleSetPan(musHandle handle, int pan);
extern int MusHandleSetFreqOffset(musHandle handle, float offset);
extern int MusHandleSetTempo(musHandle handle, int tempo);
extern int MusHandleSetReverb(musHandle handle, int reverb);
extern int MusHandlePause(musHandle handle);
extern int MusHandleUnPause(musHandle handle);
extern void* MusHandleGetPtrBank(musHandle handle);

extern void MusPtrBankInitialize(void *pbank, void *wbank);
extern void* MusPtrBankSetSingle(void *ipbank);
extern void MusPtrBankSetCurrent(void *ipbank);
extern void* MusPtrBankGetCurrent(void);

extern void MusFxBankInitialize(void *fxbank);
extern void MusFxBankSetSingle(void *ifxbank);
extern void MusFxBankSetCurrent(void *ifxbank);
extern void *MusFxBankGetCurrent(void);
extern int MusFxBankNumberOfEffects(void *ifxbank);
extern void MusFxBankSetPtrBank(void *ifxbank, void *ipbank);
extern void *MusFxBankGetPtrBank(void *ifxbank);
extern void MusFxBankSetSingle(void *ifxbank);

extern void MusSetScheduler(musSched *sched_list);

extern void MusSetMarkerCallback(void *callback);

extern int MusHandleWaveCount(musHandle handle);
extern unsigned short *MusHandleWaveAddress(musHandle handle);

#define MusBankInitialize(pbank, wbank) MusPtrBankInitialize(pbank, wbank)

#define MusBankStartSong(ipbank, addr)                                         \
  MusStartSong((addr) == (void *)MusPtrBankSetSingle(ipbank) ? (addr) : (addr))

#define MusBankStartEffect(ipbank, number)                                     \
  MusStartEffect((number) == (int)MusPtrBankSetSingle(ipbank) ? (number)       \
                                                              : (number))

#define MusBankStartEffect2(ipbank, number, volume, pan, restartflag,          \
                            priority)                                          \
  MusStartEffect2((number) == (int)MusPtrBankSetSingle(ipbank) ? (number)      \
                                                               : (number),     \
                  volume, pan, restartflag, priority)

#ifdef _LANGUAGE_C_PLUS_PLUS
}
#endif

#endif /* _LIBMUS_H_ */