#ifndef _MUSYX_MUSYX_PRIV
#define _MUSYX_MUSYX_PRIV

#include "musyx/musyx.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct SND_STUDIO_INPUT {
  // total size: 0x4
  unsigned char vol;       // offset 0x0, size 0x1
  unsigned char volA;      // offset 0x1, size 0x1
  unsigned char volB;      // offset 0x2, size 0x1
  unsigned char srcStudio; // offset 0x3, size 0x1
} SND_STUDIO_INPUT;

typedef struct synthInfo {
  u32 mixFrq;
  u32 numSamples;
  SND_PLAYBACKINFO pbInfo;
  u8 voiceNum;
  u8 maxMusic;
  u8 maxSFX;
  u8 studioNum;
} SynthInfo;

typedef struct ADSR_VARS {
  u8 mode;
  u8 state;
  u32 cnt;
  s32 currentVolume;
  s32 currentIndex;
  s32 currentDelta;

  union data {
    struct _dls {
      u32 aTime;
      u32 dTime;
      u16 sLevel;
      u32 rTime;
      u16 cutOff;
      u8 aMode;
    } dls;

    struct _linear {
      u32 aTime;
      u32 dTime;
      u16 sLevel;
      u32 rTime;
    } linear;
  } data;
} ADSR_VARS;

typedef struct _PBMIX {
  // total size: 0x24
  unsigned short vL;          // offset 0x0, size 0x2
  unsigned short vDeltaL;     // offset 0x2, size 0x2
  unsigned short vR;          // offset 0x4, size 0x2
  unsigned short vDeltaR;     // offset 0x6, size 0x2
  unsigned short vAuxAL;      // offset 0x8, size 0x2
  unsigned short vDeltaAuxAL; // offset 0xA, size 0x2
  unsigned short vAuxAR;      // offset 0xC, size 0x2
  unsigned short vDeltaAuxAR; // offset 0xE, size 0x2
  unsigned short vAuxBL;      // offset 0x10, size 0x2
  unsigned short vDeltaAuxBL; // offset 0x12, size 0x2
  unsigned short vAuxBR;      // offset 0x14, size 0x2
  unsigned short vDeltaAuxBR; // offset 0x16, size 0x2
  unsigned short vAuxBS;      // offset 0x18, size 0x2
  unsigned short vDeltaAuxBS; // offset 0x1A, size 0x2
  unsigned short vS;          // offset 0x1C, size 0x2
  unsigned short vDeltaS;     // offset 0x1E, size 0x2
  unsigned short vAuxAS;      // offset 0x20, size 0x2
  unsigned short vDeltaAuxAS; // offset 0x22, size 0x2
} _PBMIX;

typedef struct _PBITD {
  // total size: 0xE
  unsigned short flag;         // offset 0x0, size 0x2
  unsigned short bufferHi;     // offset 0x2, size 0x2
  unsigned short bufferLo;     // offset 0x4, size 0x2
  unsigned short shiftL;       // offset 0x6, size 0x2
  unsigned short shiftR;       // offset 0x8, size 0x2
  unsigned short targetShiftL; // offset 0xA, size 0x2
  unsigned short targetShiftR; // offset 0xC, size 0x2
} _PBITD;

typedef struct _PBUPDATE {
  // total size: 0xE
  unsigned short updNum[5]; // offset 0x0, size 0xA
  unsigned short dataHi;    // offset 0xA, size 0x2
  unsigned short dataLo;    // offset 0xC, size 0x2
} _PBUPDATE;

typedef struct _PBDPOP {
  // total size: 0x12
  unsigned short aL;     // offset 0x0, size 0x2
  unsigned short aAuxAL; // offset 0x2, size 0x2
  unsigned short aAuxBL; // offset 0x4, size 0x2
  unsigned short aR;     // offset 0x6, size 0x2
  unsigned short aAuxAR; // offset 0x8, size 0x2
  unsigned short aAuxBR; // offset 0xA, size 0x2
  unsigned short aS;     // offset 0xC, size 0x2
  unsigned short aAuxAS; // offset 0xE, size 0x2
  unsigned short aAuxBS; // offset 0x10, size 0x2
} _PBDPOP;

typedef struct _PBVE {
  // total size: 0x4
  unsigned short currentVolume; // offset 0x0, size 0x2
  unsigned short currentDelta;  // offset 0x2, size 0x2
} _PBVE;

typedef struct _PBFIR {
  // total size: 0x6
  unsigned short numCoefs; // offset 0x0, size 0x2
  unsigned short coefsHi;  // offset 0x2, size 0x2
  unsigned short coefsLo;  // offset 0x4, size 0x2
} _PBFIR;

typedef struct _PBADDR {
  // total size: 0x10
  unsigned short loopFlag;         // offset 0x0, size 0x2
  unsigned short format;           // offset 0x2, size 0x2
  unsigned short loopAddressHi;    // offset 0x4, size 0x2
  unsigned short loopAddressLo;    // offset 0x6, size 0x2
  unsigned short endAddressHi;     // offset 0x8, size 0x2
  unsigned short endAddressLo;     // offset 0xA, size 0x2
  unsigned short currentAddressHi; // offset 0xC, size 0x2
  unsigned short currentAddressLo; // offset 0xE, size 0x2
} _PBADDR;

typedef struct _PBADPCM {
  // total size: 0x28
  unsigned short a[8][2];    // offset 0x0, size 0x20
  unsigned short gain;       // offset 0x20, size 0x2
  unsigned short pred_scale; // offset 0x22, size 0x2
  unsigned short yn1;        // offset 0x24, size 0x2
  unsigned short yn2;        // offset 0x26, size 0x2
} _PDADPCM;

typedef struct _PBSRC {
  // total size: 0xE
  unsigned short ratioHi;            // offset 0x0, size 0x2
  unsigned short ratioLo;            // offset 0x2, size 0x2
  unsigned short currentAddressFrac; // offset 0x4, size 0x2
  unsigned short last_samples[4];    // offset 0x6, size 0x8
} _PBSRC;

typedef struct _PBADPCMLOOP {
  // total size: 0x6
  unsigned short loop_pred_scale; // offset 0x0, size 0x2
  unsigned short loop_yn1;        // offset 0x2, size 0x2
  unsigned short loop_yn2;        // offset 0x4, size 0x2
} _PBADPCMLOOP;

typedef struct _PB {
  // total size: 0xBC
  unsigned short nextHi;         // offset 0x0, size 0x2
  unsigned short nextLo;         // offset 0x2, size 0x2
  unsigned short currHi;         // offset 0x4, size 0x2
  unsigned short currLo;         // offset 0x6, size 0x2
  unsigned short srcSelect;      // offset 0x8, size 0x2
  unsigned short coefSelect;     // offset 0xA, size 0x2
  unsigned short mixerCtrl;      // offset 0xC, size 0x2
  unsigned short state;          // offset 0xE, size 0x2
  unsigned short loopType;       // offset 0x10, size 0x2
  struct _PBMIX mix;             // offset 0x12, size 0x24
  struct _PBITD itd;             // offset 0x36, size 0xE
  struct _PBUPDATE update;       // offset 0x44, size 0xE
  struct _PBDPOP dpop;           // offset 0x52, size 0x12
  struct _PBVE ve;               // offset 0x64, size 0x4
  struct _PBFIR fir;             // offset 0x68, size 0x6
  struct _PBADDR addr;           // offset 0x6E, size 0x10
  struct _PBADPCM adpcm;         // offset 0x7E, size 0x28
  struct _PBSRC src;             // offset 0xA6, size 0xE
  struct _PBADPCMLOOP adpcmLoop; // offset 0xB4, size 0x6
  unsigned short streamLoopCnt;  // offset 0xBA, size 0x2
} _PB;

typedef struct SAMPLE_INFO {
  // total size: 0x20
  u32 info;        // offset 0x0, size 0x4
  void* addr;      // offset 0x4, size 0x4
  void* extraData; // offset 0x8, size 0x4
  u32 offset;      // offset 0xC, size 0x4
  u32 length;      // offset 0x10, size 0x4
  u32 loop;        // offset 0x14, size 0x4
  u32 loopLength;  // offset 0x18, size 0x4
  u8 compType;     // offset 0x1C, size 0x1
} SAMPLE_INFO;

typedef struct VSampleInfo {
  // total size: 0xC
  void* loopBufferAddr; // offset 0x0, size 0x4
  u32 loopBufferLength; // offset 0x4, size 0x4
  u8 inLoopBuffer;      // offset 0x8, size 0x1
} VSampleInfo;

typedef struct DSPvoice {
  struct _PB* pb;
  void* patchData;
  void* itdBuffer;
  struct DSPvoice* next;
  struct DSPvoice* prev;
  struct DSPvoice* nextAlien;
  u32 mesgCallBackUserValue;
  u32 prio;
  u32 currentAddr;
  u32 changed[5];
  u32 pitch[5];
  u16 volL;
  u16 volR;
  u16 volS;
  u16 volLa;
  u16 volRa;
  u16 volSa;
  u16 volLb;
  u16 volRb;
  u16 volSb;
  u16 lastVolL;
  u16 lastVolR;
  u16 lastVolS;
  u16 lastVolLa;
  u16 lastVolRa;
  u16 lastVolSa;
  u16 lastVolLb;
  u16 lastVolRb;
  u16 lastVolSb;
  u16 smp_id;
  SAMPLE_INFO smp_info;
  VSampleInfo vSampleInfo;
  u8 streamLoopPS;
  ADSR_VARS adsr;
  u16 srcTypeSelect;
  u16 srcCoefSelect;
  u16 itdShiftL;
  u16 itdShiftR;
  u8 singleOffset;
  struct {
    u32 posHi;
    u32 posLo;
    u32 pitch;
  } playInfo;

  struct {
    u8 pitch;
    u8 vol;
    u8 volA;
    u8 volB;
  } lastUpdate;

  u32 virtualSampleID;
  u8 state;
  u8 postBreak;
  u8 startupBreak;
  u8 studio;
  u32 flags;
} DSPvoice;

typedef struct VID_LIST {
  struct VID_LIST* next;
  struct VID_LIST* prev;
  u32 vid;
  u32 root;
} VID_LIST;

typedef enum {
  MAC_STATE_RUNNABLE = 0,
  MAC_STATE_YIELDED,
  MAC_STATE_STOPPED,
} MAC_STATE;

typedef struct MSTEP {
  u32 para[2];
} MSTEP;

typedef struct CALLSTACK {
  struct MSTEP* addr;
  struct MSTEP* curAddr;
} CALLSTACK;

typedef struct SYNTH_QUEUE {
  struct SYNTH_QUEUE* next;
  struct SYNTH_QUEUE* prev;
  u8 voice;
  u8 jobTabIndex;
} SYNTH_QUEUE;

typedef struct SYNTH_LFO {
  u32 time;
  u32 period;
  s16 value;
  s16 lastValue;
} SYNTH_LFO;

typedef struct CTRL_SOURCE {
  u8 midiCtrl;
  u8 combine;
  long scale;
} CTRL_SOURCE;

typedef struct CTRL_DEST {
  CTRL_SOURCE source[4];
  u16 oldValue;
  u8 numSource;
} CTRL_DEST;

typedef struct SND_VIRTUALSAMPLE_INFO {
  // total size: 0x14
  unsigned short smpID;  // offset 0x0, size 0x2
  unsigned short instID; // offset 0x2, size 0x2
  union vsData {
    struct vsUpdate {
      // total size: 0x10
      unsigned long off1; // offset 0x0, size 0x4
      unsigned long len1; // offset 0x4, size 0x4
      unsigned long off2; // offset 0x8, size 0x4
      unsigned long len2; // offset 0xC, size 0x4
    } update;
  } data;
} SND_VIRTUALSAMPLE_INFO;

typedef struct VS_BUFFER {
  // total size: 0x24
  unsigned char state;            // offset 0x0, size 0x1
  unsigned char hwId;             // offset 0x1, size 0x1
  unsigned char smpType;          // offset 0x2, size 0x1
  unsigned char voice;            // offset 0x3, size 0x1
  unsigned long last;             // offset 0x4, size 0x4
  unsigned long finalGoodSamples; // offset 0x8, size 0x4
  unsigned long finalLast;        // offset 0xC, size 0x4
  SND_VIRTUALSAMPLE_INFO info;    // offset 0x10, size 0x14
} VS_BUFFER;

typedef struct _VS {
  // total size: 0x950
  unsigned char numBuffers;   // offset 0x0, size 0x1
  unsigned long bufferLength; // offset 0x4, size 0x4
  VS_BUFFER streamBuffer[64]; // offset 0x8, size 0x900
  unsigned char voices[64];   // offset 0x908, size 0x40
  unsigned short nextInstID;  // offset 0x948, size 0x2
  unsigned long (*callback)(unsigned char,
                            struct SND_VIRTUALSAMPLE_INFO*); // offset 0x94C, size 0x4
} VS;

extern VS vs;

#pragma push
#pragma pack(4)
typedef struct SYNTH_VOICE {
  SYNTH_QUEUE lowPrecisionJob;
  SYNTH_QUEUE zeroOffsetJob; // offset 0xC, size 0xC
  SYNTH_QUEUE eventJob;      // offset 0x18, size 0xC
  u64 lastLowCallTime;
  u64 lastZeroCallTime;
  MSTEP* addr;
  MSTEP* curAddr;
  struct SYNTH_VOICE* nextMacActive;
  struct SYNTH_VOICE* prevMacActive;
  struct SYNTH_VOICE* nextTimeQueueMacro;
  struct SYNTH_VOICE* prevTimeQueueMacro;
  MAC_STATE state;
  MSTEP* trapEventAddr[3];
  MSTEP* trapEventCurAddr[3];
  u8 trapEventAny;
  CALLSTACK callStack[4];
  u8 callStackEntryNum;
  u8 callStackIndex;
  u64 macStartTime;
  u64 wait;
  u64 waitTime;
  u8 timeUsedByInput;
  u16 loop;
  long local_vars[16];
  u32 child;
  u32 parent;
  u32 id;
  VID_LIST* vidList;
  VID_LIST* vidListMaster;
  u16 allocId;
  u16 macroId;
  u8 keyGroup;
  u32 lastVID;
  u8 prio;
  u16 ageSpeed;
  u32 age;
  u64 cFlags;
  u8 block;
  u8 fxFlag;
  u8 vGroup;
  u8 studio;
  u8 track;
  u8 midi;
  u8 midiSet;
  u8 section;
  u32 sInfo;
  u32 playFrq;
  u16 curNote;
  s8 curDetune;
  u8 orgNote;
  u8 lastNote;
  u8 portType;
  u16 portLastCtrlState;
  u32 portDuration;
  u32 portCurPitch;
  u32 portTime;               // offset 0x13C, size 0x4
  u8 vibKeyRange;             // offset 0x140, size 0x1
  u8 vibCentRange;            // offset 0x141, size 0x1
  u32 vibPeriod;              // offset 0x144, size 0x4
  u32 vibCurTime;             // offset 0x148, size 0x4
  long vibCurOffset;          // offset 0x14C, size 0x4
  s16 vibModAddScale;         // offset 0x150, size 0x2
  u32 volume;                 // offset 0x154, size 0x4
  u32 orgVolume;              // offset 0x158, size 0x4
  float lastVolFaderScale;    // offset 0x15C, size 0x4
  u32 lastPan;                // offset 0x160, size 0x4
  u32 lastSPan;               // offset 0x164, size 0x4
  float treCurScale;          // offset 0x168, size 0x4
  u16 treScale;               // offset 0x16C, size 0x2
  u16 treModAddScale;         // offset 0x16E, size 0x2
  u32 panning[2];             // offset 0x170, size 0x8
  long panDelta[2];           // offset 0x178, size 0x8
  u32 panTarget[2];           // offset 0x180, size 0x8
  u32 panTime[2];             // offset 0x188, size 0x8
  u8 revVolScale;             // offset 0x190, size 0x1
  u8 revVolOffset;            // offset 0x191, size 0x1
  u8 volTable;                // offset 0x192, size 0x1
  u8 itdMode;                 // offset 0x193, size 0x1
  long envDelta;              // offset 0x194, size 0x4
  u32 envTarget;              // offset 0x198, size 0x4
  u32 envCurrent;             // offset 0x19C, size 0x4
  u32 sweepOff[2];            // offset 0x1A0, size 0x8
  long sweepAdd[2];           // offset 0x1A8, size 0x8
  long sweepCnt[2];           // offset 0x1B0, size 0x8
  u8 sweepNum[2];             // offset 0x1B8, size 0x2
  struct SYNTH_LFO lfo[2];    // offset 0x1BC, size 0x18
  u8 lfoUsedByInput[2];       // offset 0x1D4, size 0x2
  u8 pbLowerKeyRange;         // offset 0x1D6, size 0x1
  u8 pbUpperKeyRange;         // offset 0x1D7, size 0x1
  u16 pbLast;                 // offset 0x1D8, size 0x2
  struct ADSR_VARS pitchADSR; // offset 0x1DC, size 0x28
  s16 pitchADSRRange;         // offset 0x204, size 0x2
  u16 curPitch;               // offset 0x206, size 0x2
  struct setup {
    u8 vol;                     // offset 0x0, size 0x1
    u8 pan;                     // offset 0x1, size 0x1
    u8 midi;                    // offset 0x2, size 0x1
    u8 midiSet;                 // offset 0x3, size 0x1
    u8 section;                 // offset 0x4, size 0x1
    u8 track;                   // offset 0x5, size 0x1
    u8 vGroup;                  // offset 0x6, size 0x1
    u8 studio;                  // offset 0x7, size 0x1
    u8 itdMode;                 // offset 0x8, size 0x1
  } setup;                      // offset 0x208, size 0x9
  u32 midiDirtyFlags;           // offset 0x214, size 0x4
  CTRL_DEST inpVolume;          // offset 0x218, size 0x24
  CTRL_DEST inpPanning;         // offset 0x23C, size 0x24
  CTRL_DEST inpSurroundPanning; // offset 0x260, size 0x24
  CTRL_DEST inpPitchBend;       // offset 0x284, size 0x24
  CTRL_DEST inpDoppler;         // offset 0x2A8, size 0x24
  CTRL_DEST inpModulation;      // offset 0x2CC, size 0x24
  CTRL_DEST inpPedal;           // offset 0x2F0, size 0x24
  CTRL_DEST inpPortamento;      // offset 0x314, size 0x24
  CTRL_DEST inpPreAuxA;         // offset 0x338, size 0x24
  CTRL_DEST inpReverb;          // offset 0x35C, size 0x24
  CTRL_DEST inpPreAuxB;         // offset 0x380, size 0x24
  CTRL_DEST inpPostAuxB;        // offset 0x3A4, size 0x24
  CTRL_DEST inpTremolo;         // offset 0x3C8, size 0x24
  u8 mesgNum;                   // offset 0x3EC, size 0x1
  u8 mesgRead;                  // offset 0x3ED, size 0x1
  u8 mesgWrite;                 // offset 0x3EE, size 0x1
  long mesgQueue[4];            // offset 0x3F0, size 0x10
  u16 curOutputVolume;          // offset 0x400, size 0x2
} SYNTH_VOICE;
#pragma pop

typedef struct SAL_VOLINFO {
  // total size: 0x24
  float volL;     // offset 0x0, size 0x4
  float volR;     // offset 0x4, size 0x4
  float volS;     // offset 0x8, size 0x4
  float volAuxAL; // offset 0xC, size 0x4
  float volAuxAR; // offset 0x10, size 0x4
  float volAuxAS; // offset 0x14, size 0x4
  float volAuxBL; // offset 0x18, size 0x4
  float volAuxBR; // offset 0x1C, size 0x4
  float volAuxBS; // offset 0x20, size 0x4
} SAL_VOLINFO;

typedef struct SAL_PANINFO {
  // total size: 0x30
  u32 pan_i;     // offset 0x0, size 0x4
  u32 pan_im;    // offset 0x4, size 0x4
  u32 span_i;    // offset 0x8, size 0x4
  u32 span_im;   // offset 0xC, size 0x4
  u32 rpan_i;    // offset 0x10, size 0x4
  u32 rpan_im;   // offset 0x14, size 0x4
  float pan_f;   // offset 0x18, size 0x4
  float pan_fm;  // offset 0x1C, size 0x4
  float span_f;  // offset 0x20, size 0x4
  float span_fm; // offset 0x24, size 0x4
  float rpan_f;  // offset 0x28, size 0x4
  float rpan_fm; // offset 0x2C, size 0x4
} SAL_PANINFO;

typedef struct _SPB {
  // total size: 0x36
  unsigned short dpopLHi;     // offset 0x0, size 0x2
  unsigned short dpopLLo;     // offset 0x2, size 0x2
  unsigned short dpopLDelta;  // offset 0x4, size 0x2
  unsigned short dpopRHi;     // offset 0x6, size 0x2
  unsigned short dpopRLo;     // offset 0x8, size 0x2
  unsigned short dpopRDelta;  // offset 0xA, size 0x2
  unsigned short dpopSHi;     // offset 0xC, size 0x2
  unsigned short dpopSLo;     // offset 0xE, size 0x2
  unsigned short dpopSDelta;  // offset 0x10, size 0x2
  unsigned short dpopALHi;    // offset 0x12, size 0x2
  unsigned short dpopALLo;    // offset 0x14, size 0x2
  unsigned short dpopALDelta; // offset 0x16, size 0x2
  unsigned short dpopARHi;    // offset 0x18, size 0x2
  unsigned short dpopARLo;    // offset 0x1A, size 0x2
  unsigned short dpopARDelta; // offset 0x1C, size 0x2
  unsigned short dpopASHi;    // offset 0x1E, size 0x2
  unsigned short dpopASLo;    // offset 0x20, size 0x2
  unsigned short dpopASDelta; // offset 0x22, size 0x2
  unsigned short dpopBLHi;    // offset 0x24, size 0x2
  unsigned short dpopBLLo;    // offset 0x26, size 0x2
  unsigned short dpopBLDelta; // offset 0x28, size 0x2
  unsigned short dpopBRHi;    // offset 0x2A, size 0x2
  unsigned short dpopBRLo;    // offset 0x2C, size 0x2
  unsigned short dpopBRDelta; // offset 0x2E, size 0x2
  unsigned short dpopBSHi;    // offset 0x30, size 0x2
  unsigned short dpopBSLo;    // offset 0x32, size 0x2
  unsigned short dpopBSDelta; // offset 0x34, size 0x2
} _SPB;

typedef struct DSPhostDPop {
  // total size: 0x24
  long l;  // offset 0x0, size 0x4
  long r;  // offset 0x4, size 0x4
  long s;  // offset 0x8, size 0x4
  long lA; // offset 0xC, size 0x4
  long rA; // offset 0x10, size 0x4
  long sA; // offset 0x14, size 0x4
  long lB; // offset 0x18, size 0x4
  long rB; // offset 0x1C, size 0x4
  long sB; // offset 0x20, size 0x4
} DSPhostDPop;

typedef struct DSPinput {
  // total size: 0xC
  unsigned char studio;          // offset 0x0, size 0x1
  unsigned short vol;            // offset 0x2, size 0x2
  unsigned short volA;           // offset 0x4, size 0x2
  unsigned short volB;           // offset 0x6, size 0x2
  struct SND_STUDIO_INPUT* desc; // offset 0x8, size 0x4
} DSPinput;

typedef struct DSPstudioinfo {
  // total size: 0xBC
  struct _SPB* spb;                // offset 0x0, size 0x4
  struct DSPhostDPop hostDPopSum;  // offset 0x4, size 0x24
  long* main[2];                   // offset 0x28, size 0x8
  long* auxA[3];                   // offset 0x30, size 0xC
  long* auxB[3];                   // offset 0x3C, size 0xC
  struct DSPvoice* voiceRoot;      // offset 0x48, size 0x4
  struct DSPvoice* alienVoiceRoot; // offset 0x4C, size 0x4
  unsigned char state;             // offset 0x50, size 0x1
  unsigned char isMaster;          // offset 0x51, size 0x1
  unsigned char numInputs;         // offset 0x52, size 0x1
  SND_STUDIO_TYPE type;            // offset 0x54, size 0x4
  struct DSPinput in[7];           // offset 0x58, size 0x54
  SND_AUX_CALLBACK auxAHandler;    // offset 0xAC, size 0x4
  SND_AUX_CALLBACK auxBHandler;    // offset 0xB0, size 0x4
  void* auxAUser;                  // offset 0xB4, size 0x4
  void* auxBUser;                  // offset 0xB8, size 0x4
} DSPstudioinfo;

extern DSPstudioinfo dspStudio[8];

extern SYNTH_VOICE* synthVoice;

extern DSPvoice* dspVoice;
typedef s32 (*SND_COMPARE)(u16*, u8*);

void dataInit(u32, s32);                                        /* extern */
void dataInitStack();                                           /* extern */
s32 hwInit(u32* frq, u16 numVoices, u16 numStudios, u32 flags); /* extern */
void hwEnableIrq();
void hwDisableIrq();
void s3dInit(s32);       /* extern */
void seqInit();          /* extern */
void streamInit();       /* extern */
void synthInit(u32, u8); /* extern */
void vsInit();           /* extern */
void hwExit();
void dataExit();
void s3dExit();
void synthExit();
u32 synthGetTicksPerSecond(u32 seconds);
u16 sndRand(void);
s16 sndSin(u32 __x);
u8* sndBSearch(u16* key, u8* subTab, s32 mainTab, s32 len, SND_COMPARE cmp);
void sndConvertMs(u32* time);
void sndConvertTicks(u32* out, u32 seconds);
u32 sndConvert2Ms(u32 time);
void hwActivateStudio(unsigned char studio, unsigned long isMaster, SND_STUDIO_TYPE type);
void hwDeactivateStudio(u8);
u32 hwIsActive(u32);

extern SND_HOOKS salHooks;
extern u8 sndActive;
extern s8 synthIdleWaitActive;
extern SynthInfo synthInfo;
typedef s32 (*SND_MESSAGE_CALLBACK)(u32, u32);
typedef void (*SND_SOME_CALLBACK)();

extern SND_MESSAGE_CALLBACK salMessageCallback;
/* Math */
void salApplyMatrix(const SND_FMATRIX* a, const SND_FVECTOR* b, SND_FVECTOR* out);
float salNormalizeVector(SND_FVECTOR* vec);
void salCrossProduct(SND_FVECTOR* out, const SND_FVECTOR* a, const SND_FVECTOR* b);
void salInvertMatrix(SND_FMATRIX* out, const SND_FMATRIX* in);

/* hardware */
u32 salInitAi(SND_SOME_CALLBACK, u32, u32*);
u32 salInitDsp(u32);
u32 salInitDspCtrl(u8 numVoices, u8 numStudios, u32 defaultStudioDPL2);
u32 salStartAi();
void salInitHRTFBuffer();
void salActivateVoice(DSPvoice* dsp_vptr, u8 studio);
void salDeactivateVoice(DSPvoice* dsp_vptr);
void salActivateStudio(u8 studio, u32 isMaster, SND_STUDIO_TYPE type);
void salDeactivateStudio(unsigned char studio);
void salActivateVoice(DSPvoice* dsp_vptr, u8 studio);
void salCalcVolume(u8 voltab_index, SAL_VOLINFO* vi, float vol, u32 pan, u32 span, float auxa,
                   float auxb, u32 itd, u32 dpl2);
void salReconnectVoice(DSPvoice* dsp_vptr, u8 studio);
void* salMalloc(u32 len);
void salFree(void* addr);

#define SAL_MAX_STUDIONUM 8
extern u8 salMaxStudioNum;
extern u8 salNumVoices;
extern float dspDLSVolTab[128];

/* Stream */
typedef s32 (*SND_STREAM_UPDATE_CALLBACK)(void* buffer1, u32 len1, void* buffer2, u32 len2,
                                          void* user);
typedef struct SND_STREAM_INFO {
  u32 x0_;
  u32 x4_;
  u32 x8_;
  u8 xc_;
  char data2[0x10 - 0xd];
  SND_STREAM_UPDATE_CALLBACK updateCb;
  char data3[0x4C - 0x14];
  SND_VOICEID voiceId;
  void* user;
  char data4[0x64 - 0x54];
} SND_STREAM_INFO;

void streamOutputModeChanged();

/* TODO: Figure out what `unk` is */
void hwSetSRCType(u32 v, u8 salSRCType);
void hwSetITDMode(u32 v, u8 mode);
void hwSetPolyPhaseFilter(unsigned long v, unsigned char salCoefSel);
bool hwAddInput(u8 studio, SND_STUDIO_INPUT* in_desc);
bool hwRemoveInput(u8 studio, SND_STUDIO_INPUT* in_desc);
void hwChangeStudio(u32 v, u8 studio);
void hwDisableHRTF();

extern u32 dspHRTFOn;

extern u16* dspCmdList;
extern u16 dspCmdFirstSize;

extern u8 dspScale2IndexTab[1024];

typedef void* (*ARAMUploadCallback)(u32, u32);

u32 aramGetStreamBufferAddress(unsigned char id, unsigned long* len);
void aramUploadData(void* mram, unsigned long aram, unsigned long len, unsigned long highPrio,
                    void (*callback)(unsigned long), unsigned long user);
void aramFreeStreamBuffer(u8 id);
void* aramStoreData(void* src, unsigned long len);
void aramRemoveData(void* aram, unsigned long len);
#ifdef __cplusplus
}
#endif
#endif // _MUSYX_MUSYX_PRIV