prime/include/musyx/musyx_priv.h

#ifndef _MUSYX_MUSYX_PRIV
#define _MUSYX_MUSYX_PRIV

#include "musyx/musyx.h"

#include "musyx/assert.h"
#include "musyx/hardware.h"

#ifdef __cplusplus
extern "C" {
#endif

#define CLAMP(value, min, max) ((value) > (max) ? (max) : (value) < (min) ? (min) : (value))
// TODO matching hack
#define CLAMP_INV(value, min, max) ((value) < (min) ? (min) : (value) > (max) ? (max) : (value))

typedef struct SYNTH_VOICELIST {
  // total size: 0x4
  u8 prev;  // offset 0x0, size 0x1
  u8 next;  // offset 0x1, size 0x1
  u16 user; // offset 0x2, size 0x2
} SYNTH_VOICELIST;
extern SYNTH_VOICELIST voicePrioSortVoices[64];
extern u8 voicePrioSortVoicesRoot[256];
extern SYNTH_VOICELIST voicePrioSortVoices[64];

typedef struct SYNTH_ROOTLIST {
  // total size: 0x4
  u16 next; // offset 0x0, size 0x2
  u16 prev; // offset 0x2, size 0x2
} SYNTH_ROOTLIST;

extern SYNTH_ROOTLIST voicePrioSortRootList[256];

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
  u16 vL;          // offset 0x0, size 0x2
  u16 vDeltaL;     // offset 0x2, size 0x2
  u16 vR;          // offset 0x4, size 0x2
  u16 vDeltaR;     // offset 0x6, size 0x2
  u16 vAuxAL;      // offset 0x8, size 0x2
  u16 vDeltaAuxAL; // offset 0xA, size 0x2
  u16 vAuxAR;      // offset 0xC, size 0x2
  u16 vDeltaAuxAR; // offset 0xE, size 0x2
  u16 vAuxBL;      // offset 0x10, size 0x2
  u16 vDeltaAuxBL; // offset 0x12, size 0x2
  u16 vAuxBR;      // offset 0x14, size 0x2
  u16 vDeltaAuxBR; // offset 0x16, size 0x2
  u16 vAuxBS;      // offset 0x18, size 0x2
  u16 vDeltaAuxBS; // offset 0x1A, size 0x2
  u16 vS;          // offset 0x1C, size 0x2
  u16 vDeltaS;     // offset 0x1E, size 0x2
  u16 vAuxAS;      // offset 0x20, size 0x2
  u16 vDeltaAuxAS; // offset 0x22, size 0x2
} _PBMIX;

typedef struct _PBITD {
  // total size: 0xE
  u16 flag;         // offset 0x0, size 0x2
  u16 bufferHi;     // offset 0x2, size 0x2
  u16 bufferLo;     // offset 0x4, size 0x2
  u16 shiftL;       // offset 0x6, size 0x2
  u16 shiftR;       // offset 0x8, size 0x2
  u16 targetShiftL; // offset 0xA, size 0x2
  u16 targetShiftR; // offset 0xC, size 0x2
} _PBITD;

typedef struct _PBUPDATE {
  // total size: 0xE
  u16 updNum[5]; // offset 0x0, size 0xA
  u16 dataHi;    // offset 0xA, size 0x2
  u16 dataLo;    // offset 0xC, size 0x2
} _PBUPDATE;

typedef struct _PBDPOP {
  // total size: 0x12
  u16 aL;     // offset 0x0, size 0x2
  u16 aAuxAL; // offset 0x2, size 0x2
  u16 aAuxBL; // offset 0x4, size 0x2
  u16 aR;     // offset 0x6, size 0x2
  u16 aAuxAR; // offset 0x8, size 0x2
  u16 aAuxBR; // offset 0xA, size 0x2
  u16 aS;     // offset 0xC, size 0x2
  u16 aAuxAS; // offset 0xE, size 0x2
  u16 aAuxBS; // offset 0x10, size 0x2
} _PBDPOP;

typedef struct _PBVE {
  // total size: 0x4
  u16 currentVolume; // offset 0x0, size 0x2
  u16 currentDelta;  // offset 0x2, size 0x2
} _PBVE;

typedef struct _PBFIR {
  // total size: 0x6
  u16 numCoefs; // offset 0x0, size 0x2
  u16 coefsHi;  // offset 0x2, size 0x2
  u16 coefsLo;  // offset 0x4, size 0x2
} _PBFIR;

typedef struct _PBADDR {
  // total size: 0x10
  u16 loopFlag;         // offset 0x0, size 0x2
  u16 format;           // offset 0x2, size 0x2
  u16 loopAddressHi;    // offset 0x4, size 0x2
  u16 loopAddressLo;    // offset 0x6, size 0x2
  u16 endAddressHi;     // offset 0x8, size 0x2
  u16 endAddressLo;     // offset 0xA, size 0x2
  u16 currentAddressHi; // offset 0xC, size 0x2
  u16 currentAddressLo; // offset 0xE, size 0x2
} _PBADDR;

typedef struct _PBADPCM {
  // total size: 0x28
  u16 a[8][2];    // offset 0x0, size 0x20
  u16 gain;       // offset 0x20, size 0x2
  u16 pred_scale; // offset 0x22, size 0x2
  u16 yn1;        // offset 0x24, size 0x2
  u16 yn2;        // offset 0x26, size 0x2
} _PBADPCM;

typedef struct _PBSRC {
  // total size: 0xE
  u16 ratioHi;            // offset 0x0, size 0x2
  u16 ratioLo;            // offset 0x2, size 0x2
  u16 currentAddressFrac; // offset 0x4, size 0x2
  u16 last_samples[4];    // offset 0x6, size 0x8
} _PBSRC;

typedef struct _PBADPCMLOOP {
  // total size: 0x6
  u16 loop_pred_scale; // offset 0x0, size 0x2
  u16 loop_yn1;        // offset 0x2, size 0x2
  u16 loop_yn2;        // offset 0x4, size 0x2
} _PBADPCMLOOP;

typedef struct _PB {
  // total size: 0xBC
  u16 nextHi;             // offset 0x0, size 0x2
  u16 nextLo;             // offset 0x2, size 0x2
  u16 currHi;             // offset 0x4, size 0x2
  u16 currLo;             // offset 0x6, size 0x2
  u16 srcSelect;          // offset 0x8, size 0x2
  u16 coefSelect;         // offset 0xA, size 0x2
  u16 mixerCtrl;          // offset 0xC, size 0x2
  u16 state;              // offset 0xE, size 0x2
  u16 loopType;           // offset 0x10, size 0x2
  _PBMIX mix;             // offset 0x12, size 0x24
  _PBITD itd;             // offset 0x36, size 0xE
  _PBUPDATE update;       // offset 0x44, size 0xE
  _PBDPOP dpop;           // offset 0x52, size 0x12
  _PBVE ve;               // offset 0x64, size 0x4
  _PBFIR fir;             // offset 0x68, size 0x6
  _PBADDR addr;           // offset 0x6E, size 0x10
  _PBADPCM adpcm;         // offset 0x7E, size 0x28
  _PBSRC src;             // offset 0xA6, size 0xE
  _PBADPCMLOOP adpcmLoop; // offset 0xB4, size 0x6
  u16 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 GROUP_DATA {
  // total size: 0x28
  u32 nextOff;   // offset 0x0, size 0x4
  u16 id;        // offset 0x4, size 0x2
  u16 type;      // offset 0x6, size 0x2
  u32 macroOff;  // offset 0x8, size 0x4
  u32 sampleOff; // offset 0xC, size 0x4
  u32 curveOff;  // offset 0x10, size 0x4
  u32 keymapOff; // offset 0x14, size 0x4
  u32 layerOff;  // offset 0x18, size 0x4
  union {
    struct fx {
      // total size: 0x4
      u32 tableOff; // offset 0x0, size 0x4
    } fx;
    struct song {
      // total size: 0xC
      u32 normpageOff;  // offset 0x0, size 0x4
      u32 drumpageOff;  // offset 0x4, size 0x4
      u32 midiSetupOff; // offset 0x8, size 0x4
    } song;
  } data; // offset 0x1C, size 0xC
} GROUP_DATA;

typedef struct SAMPLE_HEADER {
  // total size: 0x10
  u32 info;       // offset 0x0, size 0x4
  u32 length;     // offset 0x4, size 0x4
  u32 loopOffset; // offset 0x8, size 0x4
  u32 loopLength; // offset 0xC, size 0x4
} SAMPLE_HEADER;

typedef struct SDIR_DATA {
  // total size: 0x20
  u16 id;               // offset 0x0, size 0x2
  u16 ref_cnt;          // offset 0x2, size 0x2
  u32 offset;           // offset 0x4, size 0x4
  void* addr;           // offset 0x8, size 0x4
  SAMPLE_HEADER header; // offset 0xC, size 0x10
  u32 extraData;        // offset 0x1C, size 0x4
} SDIR_DATA;

typedef struct SDIR_TAB {
  // total size: 0xC
  SDIR_DATA* data; // offset 0x0, size 0x4
  void* base;      // offset 0x4, size 0x4
  u16 numSmp;      // offset 0x8, size 0x2
  u16 res;         // offset 0xA, size 0x2
} SDIR_TAB;

typedef struct DATA_TAB {
  // total size: 0x8
  void* data;   // offset 0x0, size 0x4
  u16 id;       // offset 0x4, size 0x2
  u16 refCount; // offset 0x6, size 0x2
} DATA_TAB;

typedef struct LAYER_TAB {
  // total size: 0xC
  void* data;   // offset 0x0, size 0x4
  u16 id;       // offset 0x4, size 0x2
  u16 num;      // offset 0x6, size 0x2
  u16 refCount; // offset 0x8, size 0x2
  u16 reserved; // offset 0xA, size 0x2
} LAYER_TAB;

typedef struct MAC_MAINTAB {
  // total size: 0x4
  u16 num;         // offset 0x0, size 0x2
  u16 subTabIndex; // offset 0x2, size 0x2
} MAC_MAINTAB;

typedef struct MAC_SUBTAB {
  // total size: 0x8
  void* data;   // offset 0x0, size 0x4
  u16 id;       // offset 0x4, size 0x2
  u16 refCount; // offset 0x6, size 0x2
} MAC_SUBTAB;

typedef struct GSTACK {
  // total size: 0xC
  GROUP_DATA* gAddr;   // offset 0x0, size 0x4
  SDIR_DATA* sdirAddr; // offset 0x4, size 0x4
  void* prjAddr;       // offset 0x8, size 0x4
} GSTACK;

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 {
  _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 {
  MSTEP* addr;
  MSTEP* curAddr;
} CALLSTACK;

typedef struct SYNTH_QUEUE {
  // total size: 0xC
  struct SYNTH_QUEUE* next; // offset 0x0, size 0x4
  struct SYNTH_QUEUE* prev; // offset 0x4, size 0x4
  u8 voice;                 // offset 0x8, size 0x1
  u8 jobTabIndex;           // offset 0x9, size 0x1
} SYNTH_QUEUE;

typedef enum {
  SYNTH_JOBTYPE_LOW = 0,
  SYNTH_JOBTYPE_ZERO = 1,
  SYNTH_JOBTYPE_EVENT = 2,
} SYNTH_JOBTYPE;

typedef struct {
  // total size: 0xC
  SYNTH_QUEUE* lowPrecision; // offset 0x0, size 0x4
  SYNTH_QUEUE* event;        // offset 0x4, size 0x4
  SYNTH_QUEUE* zeroOffset;   // offset 0x8, size 0x4
} SYNTH_JOBTAB;

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

typedef struct SYNTHMasterFader {
  // total size: 0x30
  f32 volume;         // offset 0x0, size 0x4
  f32 target;         // offset 0x4, size 0x4
  f32 start;          // offset 0x8, size 0x4
  f32 time;           // offset 0xC, size 0x4
  f32 deltaTime;      // offset 0x10, size 0x4
  f32 pauseVol;       // offset 0x14, size 0x4
  f32 pauseTarget;    // offset 0x18, size 0x4
  f32 pauseStart;     // offset 0x1C, size 0x4
  f32 pauseTime;      // offset 0x20, size 0x4
  f32 pauseDeltaTime; // offset 0x24, size 0x4
  u32 seqId;          // offset 0x28, size 0x4
  u8 seqMode;         // offset 0x2C, size 0x1
  u8 type;            // offset 0x2D, size 0x1
} SYNTHMasterFader;

typedef struct CTRL_SOURCE {
  u8 midiCtrl;
  u8 combine;
  s32 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
  u16 smpID;  // offset 0x0, size 0x2
  u16 instID; // offset 0x2, size 0x2
  union vsData {
    struct vsUpdate {
      // total size: 0x10
      u32 off1; // offset 0x0, size 0x4
      u32 len1; // offset 0x4, size 0x4
      u32 off2; // offset 0x8, size 0x4
      u32 len2; // offset 0xC, size 0x4
    } update;
  } data;
} SND_VIRTUALSAMPLE_INFO;

typedef struct VS_BUFFER {
  // total size: 0x24
  u8 state;                    // offset 0x0, size 0x1
  u8 hwId;                     // offset 0x1, size 0x1
  u8 smpType;                  // offset 0x2, size 0x1
  u8 voice;                    // offset 0x3, size 0x1
  u32 last;                    // offset 0x4, size 0x4
  u32 finalGoodSamples;        // offset 0x8, size 0x4
  u32 finalLast;               // offset 0xC, size 0x4
  SND_VIRTUALSAMPLE_INFO info; // offset 0x10, size 0x14
} VS_BUFFER;

typedef struct _VS {
  // total size: 0x950
  u8 numBuffers;              // offset 0x0, size 0x1
  u32 bufferLength;           // offset 0x4, size 0x4
  VS_BUFFER streamBuffer[64]; // offset 0x8, size 0x900
  u8 voices[64];              // offset 0x908, size 0x40
  u16 nextInstID;             // offset 0x948, size 0x2
  u32 (*callback)(u8,
                  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 macState;
  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;
  s32 local_vars[16];
  u32 child;
  u32 parent;
  u32 id;
  VID_LIST* vidList;
  VID_LIST* vidMasterList;
  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
  s32 vibCurOffset;      // offset 0x14C, size 0x4
  s16 vibModAddScale;    // offset 0x150, size 0x2
  u32 volume;            // offset 0x154, size 0x4
  u32 orgVolume;         // offset 0x158, size 0x4
  f32 lastVolFaderScale; // offset 0x15C, size 0x4
  u32 lastPan;           // offset 0x160, size 0x4
  u32 lastSPan;          // offset 0x164, size 0x4
  f32 treCurScale;       // offset 0x168, size 0x4
  u16 treScale;          // offset 0x16C, size 0x2
  u16 treModAddScale;    // offset 0x16E, size 0x2
  u32 panning[2];        // offset 0x170, size 0x8
  s32 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
  s32 envDelta;          // offset 0x194, size 0x4
  u32 envTarget;         // offset 0x198, size 0x4
  u32 envCurrent;        // offset 0x19C, size 0x4
  u32 sweepOff[2];       // offset 0x1A0, size 0x8
  s32 sweepAdd[2];       // offset 0x1A8, size 0x8
  s32 sweepCnt[2];       // offset 0x1B0, size 0x8
  u8 sweepNum[2];        // offset 0x1B8, size 0x2
  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
  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
  s32 mesgQueue[4];             // offset 0x3F0, size 0x10
  u16 curOutputVolume;          // offset 0x400, size 0x2
} SYNTH_VOICE;

typedef struct synthITDInfo {
  // total size: 0x2
  u8 music; // offset 0x0, size 0x1
  u8 sfx;   // offset 0x1, size 0x1
} synthITDInfo;

#pragma pop

typedef struct LAYER {
  // total size: 0xC
  u16 id;         // offset 0x0, size 0x2
  u8 keyLow;      // offset 0x2, size 0x1
  u8 keyHigh;     // offset 0x3, size 0x1
  s8 transpose;   // offset 0x4, size 0x1
  u8 volume;      // offset 0x5, size 0x1
  s16 prioOffset; // offset 0x6, size 0x2
  u8 panning;     // offset 0x8, size 0x1
  u8 reserved[3]; // offset 0x9, size 0x3
} LAYER;

typedef struct KEYMAP {
  // total size: 0x8
  u16 id;         // offset 0x0, size 0x2
  s8 transpose;   // offset 0x2, size 0x1
  u8 panning;     // offset 0x3, size 0x1
  s16 prioOffset; // offset 0x4, size 0x2
  u8 reserved[2]; // offset 0x6, size 0x2
} KEYMAP;

typedef struct MEM_DATA {
  // total size: 0x408
  u32 nextOff;  // offset 0x0, size 0x4
  u16 id;       // offset 0x4, size 0x2
  u16 reserved; // offset 0x6, size 0x2
  union {
    struct {
      // total size: 0x10
      u32 num;        // offset 0x0, size 0x4
      LAYER entry[1]; // offset 0x4, size 0xC
    } layer;
    KEYMAP map[128];
    u8 tab[1];
    MSTEP cmd[1][2];
  } data; // offset 0x8, size 0x400
} MEM_DATA;

typedef struct POOL_DATA {
  // total size: 0x10
  u32 macroOff;  // offset 0x0, size 0x4
  u32 curveOff;  // offset 0x4, size 0x4
  u32 keymapOff; // offset 0x8, size 0x4
  u32 layerOff;  // offset 0xC, size 0x4
} POOL_DATA;

typedef struct SAL_VOLINFO {
  // total size: 0x24
  f32 volL;     // offset 0x0, size 0x4
  f32 volR;     // offset 0x4, size 0x4
  f32 volS;     // offset 0x8, size 0x4
  f32 volAuxAL; // offset 0xC, size 0x4
  f32 volAuxAR; // offset 0x10, size 0x4
  f32 volAuxAS; // offset 0x14, size 0x4
  f32 volAuxBL; // offset 0x18, size 0x4
  f32 volAuxBR; // offset 0x1C, size 0x4
  f32 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
  f32 pan_f;   // offset 0x18, size 0x4
  f32 pan_fm;  // offset 0x1C, size 0x4
  f32 span_f;  // offset 0x20, size 0x4
  f32 span_fm; // offset 0x24, size 0x4
  f32 rpan_f;  // offset 0x28, size 0x4
  f32 rpan_fm; // offset 0x2C, size 0x4
} SAL_PANINFO;

typedef struct _SPB {
  // total size: 0x36
  u16 dpopLHi;     // offset 0x0, size 0x2
  u16 dpopLLo;     // offset 0x2, size 0x2
  u16 dpopLDelta;  // offset 0x4, size 0x2
  u16 dpopRHi;     // offset 0x6, size 0x2
  u16 dpopRLo;     // offset 0x8, size 0x2
  u16 dpopRDelta;  // offset 0xA, size 0x2
  u16 dpopSHi;     // offset 0xC, size 0x2
  u16 dpopSLo;     // offset 0xE, size 0x2
  u16 dpopSDelta;  // offset 0x10, size 0x2
  u16 dpopALHi;    // offset 0x12, size 0x2
  u16 dpopALLo;    // offset 0x14, size 0x2
  u16 dpopALDelta; // offset 0x16, size 0x2
  u16 dpopARHi;    // offset 0x18, size 0x2
  u16 dpopARLo;    // offset 0x1A, size 0x2
  u16 dpopARDelta; // offset 0x1C, size 0x2
  u16 dpopASHi;    // offset 0x1E, size 0x2
  u16 dpopASLo;    // offset 0x20, size 0x2
  u16 dpopASDelta; // offset 0x22, size 0x2
  u16 dpopBLHi;    // offset 0x24, size 0x2
  u16 dpopBLLo;    // offset 0x26, size 0x2
  u16 dpopBLDelta; // offset 0x28, size 0x2
  u16 dpopBRHi;    // offset 0x2A, size 0x2
  u16 dpopBRLo;    // offset 0x2C, size 0x2
  u16 dpopBRDelta; // offset 0x2E, size 0x2
  u16 dpopBSHi;    // offset 0x30, size 0x2
  u16 dpopBSLo;    // offset 0x32, size 0x2
  u16 dpopBSDelta; // offset 0x34, size 0x2
} _SPB;

typedef struct DSPhostDPop {
  // total size: 0x24
  s32 l;  // offset 0x0, size 0x4
  s32 r;  // offset 0x4, size 0x4
  s32 s;  // offset 0x8, size 0x4
  s32 lA; // offset 0xC, size 0x4
  s32 rA; // offset 0x10, size 0x4
  s32 sA; // offset 0x14, size 0x4
  s32 lB; // offset 0x18, size 0x4
  s32 rB; // offset 0x1C, size 0x4
  s32 sB; // offset 0x20, size 0x4
} DSPhostDPop;

typedef struct DSPinput {
  // total size: 0xC
  u8 studio;              // offset 0x0, size 0x1
  u16 vol;                // offset 0x2, size 0x2
  u16 volA;               // offset 0x4, size 0x2
  u16 volB;               // offset 0x6, size 0x2
  SND_STUDIO_INPUT* desc; // offset 0x8, size 0x4
} DSPinput;

typedef struct DSPstudioinfo {
  // total size: 0xBC
  _SPB* spb;                    // offset 0x0, size 0x4
  DSPhostDPop hostDPopSum;      // offset 0x4, size 0x24
  s32* main[2];                 // offset 0x28, size 0x8
  s32* auxA[3];                 // offset 0x30, size 0xC
  s32* auxB[3];                 // offset 0x3C, size 0xC
  DSPvoice* voiceRoot;          // offset 0x48, size 0x4
  DSPvoice* alienVoiceRoot;     // offset 0x4C, size 0x4
  u8 state;                     // offset 0x50, size 0x1
  u8 isMaster;                  // offset 0x51, size 0x1
  u8 numInputs;                 // offset 0x52, size 0x1
  SND_STUDIO_TYPE type;         // offset 0x54, size 0x4
  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)(void*, void*);

typedef struct CHANNEL_DEFAULTS {
  // total size: 0x1
  u8 pbRange; // offset 0x0, size 0x1
} CHANNEL_DEFAULTS;

typedef struct FX_TAB {
  // total size: 0xA
  u16 id;       // offset 0x0, size 0x2
  u16 macro;    // offset 0x2, size 0x2
  u8 maxVoices; // offset 0x4, size 0x1
  u8 priority;  // offset 0x5, size 0x1
  u8 volume;    // offset 0x6, size 0x1
  u8 panning;   // offset 0x7, size 0x1
  u8 key;       // offset 0x8, size 0x1
  u8 vGroup;    // offset 0x9, size 0x1
} FX_TAB;

typedef struct FX_DATA {
  // total size: 0xE
  u16 num;       // offset 0x0, size 0x2
  u16 reserverd; // offset 0x2, size 0x2
  FX_TAB fx[1];  // offset 0x4, size 0xA
} FX_DATA;

typedef struct FX_GROUP {
  // total size: 0x8
  u16 gid;       // offset 0x0, size 0x2
  u16 fxNum;     // offset 0x2, size 0x2
  FX_TAB* fxTab; // offset 0x4, size 0x4
} FX_GROUP;

typedef struct PAGE {
  // total size: 0x6
  u16 macro;    // offset 0x0, size 0x2
  u8 prio;      // offset 0x2, size 0x1
  u8 maxVoices; // offset 0x3, size 0x1
  u8 index;     // offset 0x4, size 0x1
  u8 reserved;  // offset 0x5, size 0x1
} PAGE;

typedef struct MIDI_CHANNEL_SETUP {
  // total size: 0x5
  u8 program; // offset 0x0, size 0x1
  u8 volume;  // offset 0x1, size 0x1
  u8 panning; // offset 0x2, size 0x1
  u8 reverb;  // offset 0x3, size 0x1
  u8 chorus;  // offset 0x4, size 0x1
} MIDI_CHANNEL_SETUP;

typedef struct MIDISETUP {
  // total size: 0x54
  u16 songId;                     // offset 0x0, size 0x2
  u16 reserved;                   // offset 0x2, size 0x2
  MIDI_CHANNEL_SETUP channel[16]; // offset 0x4, size 0x50
} MIDISETUP;

typedef struct ADSR_INFO {
  // total size: 0x14
  union ai_data {
    struct {
      // total size: 0x14
      s32 atime;  // offset 0x0, size 0x4
      s32 dtime;  // offset 0x4, size 0x4
      u16 slevel; // offset 0x8, size 0x2
      u16 rtime;  // offset 0xA, size 0x2
      s32 ascale; // offset 0xC, size 0x4
      s32 dscale; // offset 0x10, size 0x4
    } dls;
    struct {
      // total size: 0x8
      u16 atime;  // offset 0x0, size 0x2
      u16 dtime;  // offset 0x2, size 0x2
      u16 slevel; // offset 0x4, size 0x2
      u16 rtime;  // offset 0x6, size 0x2
    } linear;
  } data; // offset 0x0, size 0x14
} ADSR_INFO;

void dataInit(u32, u32); /* extern */
void dataInitStack();    /* extern */
u32 dataInsertSDir(SDIR_DATA* sdir, void* smp_data);
u32 dataRemoveSDir(SDIR_DATA* sdir);
u32 dataInsertMacro(u16 mid, void* macroaddr);
u32 dataRemoveMacro(u16 mid);
u32 dataInsertCurve(u16 cid, void* curvedata);
u32 dataRemoveCurve(u16 sid);
s32 dataGetSample(u16 sid, SAMPLE_INFO* newsmp);
void* dataGetCurve(u16 cid);
u32 dataAddSampleReference(u16 sid);
u32 dataRemoveSampleReference(u16 sid);
u32 dataInsertKeymap(u16 cid, void* keymapdata);
u32 dataRemoveKeymap(u16 sid);
u32 dataInsertLayer(u16 cid, void* layerdata, u16 size);
u32 dataRemoveLayer(u16 sid);
u32 dataInsertFX(u16 gid, FX_TAB* fx, u16 fxNum);
FX_TAB* dataGetFX(u16 fid);
void* dataGetLayer(u16 cid, u16* n);
void* dataGetKeymap(u16 cid);

s32 hwInit(u32* frq, u16 numVoices, u16 numStudios, u32 flags); /* extern */
void hwInitSamplePlayback(u32 v, u16 smpID, void* newsmp, u32 set_defadsr, u32 prio,
                          u32 callbackUserValue, u32 setSRC, u8 itdMode);
void hwSetVolume(u32 v, u8 table, f32 vol, u32 pan, u32 span, f32 auxa, f32 auxb);
void hwSetPitch(u32 v, u16 speed);
void hwEnableIrq();
void hwDisableIrq();
void* hwTransAddr(void* samples);

void seqInit(); /* extern */
u32 seqStartPlay(PAGE* norm, PAGE* drum, MIDISETUP* midiSetup, u32* song, SND_PLAYPARA* para,
                 u8 studio, u16 sgid);
u32 seqGetPrivateId(u32 seqId);
void streamInit(); /* extern */

void vsInit(); /* extern */
u32 vsSampleStartNotify(u8 voice);
void vsSampleEndNotify(u32 pubID);

void hwExit();
void dataExit();
void s3dInit(u32); /* extern */
void s3dKillEmitterByFXID(FX_TAB* fxTab, u32 num);
void s3dExit();
void synthInit(u32 mixFrq, u32 numVoices);
void synthSetBpm(u32 pbm, u8 set, u8 section);
void synthFXCloneMidiSetup(SYNTH_VOICE* dest, SYNTH_VOICE* src);
void synthSetMusicVolumeType(u8 vGroup, u8 type);
void synthAddJob(SYNTH_VOICE* svoice, SYNTH_JOBTYPE jobType, u32 deltaTime);

extern s32 synthGlobalVariable[16];
extern u16 voicePrioSortRootListRoot;
extern u8 voiceMusicRunning;
extern u8 voiceFxRunning;
extern u8 voiceListInsert;
extern u8 voiceListRoot;
void voiceSetPriority(SYNTH_VOICE* svoice, u8 prio);
u32 voiceIsLastStarted(SYNTH_VOICE* svoice);
void voiceSetLastStarted(SYNTH_VOICE* svoice);
void voiceResetLastStarted(SYNTH_VOICE* svoice);
void voiceInitLastStarted();
s32 voiceKillSound(u32 voiceid);
void voiceKill(u32 vi);

extern u64 synthRealTime;
u32 synthGetTicksPerSecond(SYNTH_VOICE* svoice);
void synthKillVoicesByMacroReferences(u16* ref);
void synthExit();
u16 sndRand(void);
s16 sndSin(u16 angle);
void* sndBSearch(void* key, void* base, s32 num, s32 len, SND_COMPARE cmp);
void sndConvertMs(u32* time);
void sndConvertTicks(u32* out, SYNTH_VOICE* svoice);
u32 sndConvert2Ms(u32 time);
u32 sndStreamAllocLength(u32 num, u32 flags);
void sndStreamFree(u32 stid);
u32 sndStreamActivate(u32 stid);
void sndStreamDeactivate(u32 stid);

void hwActivateStudio(u8 studio, u32 isMaster, SND_STUDIO_TYPE type);
void hwDeactivateStudio(u8);
void hwSetPriority(u32 v, u32 prio);
u32 hwIsActive(u32);
u32 hwGlobalActivity();
void hwSetAUXProcessingCallbacks(u8 studio, SND_AUX_CALLBACK auxA, void* userA,
                                 SND_AUX_CALLBACK auxB, void* userB);
u8 hwInitStream(u32 len);
u8 hwGetTimeOffset();
u32 hwGetVirtualSampleID(u32 v);
s16 varGet(SYNTH_VOICE* svoice, u32 ctrl, u8 index);

u32 sndGetPitch(u8 key, u32 sInfo);
s32 sndPitchUpOne(u16 note);
extern SND_HOOKS salHooks;
extern u8 sndActive;
extern u8 synthIdleWaitActive;
extern SynthInfo synthInfo;
typedef s32 (*SND_MESSAGE_CALLBACK)(u32, u32);
typedef void (*SYNTH_MESSAGE_CALLBACK)(u32, s32);
typedef void (*SND_SOME_CALLBACK)();

extern SND_MESSAGE_CALLBACK salMessageCallback;
extern SYNTH_MESSAGE_CALLBACK synthMessageCallback;
/* Math */
void salApplyMatrix(const SND_FMATRIX* a, const SND_FVECTOR* b, SND_FVECTOR* out);
f32 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(u8 studio);
void salActivateVoice(DSPvoice* dsp_vptr, u8 studio);
void salCalcVolume(u8 voltab_index, SAL_VOLINFO* vi, f32 vol, u32 pan, u32 span, f32 auxa, f32 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;

/* Stream */
typedef s32 (*SND_STREAM_UPDATE_CALLBACK)(void* buffer1, u32 len1, void* buffer2, u32 len2,
                                          void* user);
typedef struct SNDADPCMinfo {
  // total size: 0x28
  u16 numCoef;       // offset 0x0, size 0x2
  u8 initialPS;      // offset 0x2, size 0x1
  u8 loopPS;         // offset 0x3, size 0x1
  s16 loopY0;        // offset 0x4, size 0x2
  s16 loopY1;        // offset 0x6, size 0x2
  s16 coefTab[8][2]; // offset 0x8, size 0x20
} SNDADPCMinfo;

typedef struct STREAM_INFO {
#if MUSY_VERSION >= MUSY_VERSION_CHECK(1, 5, 4)
  u32 nextStreamHandle;
#endif
  u32 stid;
  u32 flags;
  u8 state;
  u8 type;
#if MUSY_VERSION >= MUSY_VERSION_CHECK(1, 5, 4)
  u8 hwStreamHandle;
  u8 lastPSFromBuffer;
#endif
  SND_STREAM_UPDATE_CALLBACK updateFunction;
  s16* buffer;
  u32 size;
  u32 bytes;
  u32 last;
  SNDADPCMinfo adpcmInfo;
  volatile SND_VOICEID voice;
  u32 user;
  u32 frq;
  u8 prio;
  u8 vol;
  u8 pan;
  u8 span;
  u8 auxa;
  u8 auxb;

#if MUSY_VERSION >= MUSY_VERSION_CHECK(1, 5, 4)
  u8 orgPan;
  u8 orgSPan;
#endif

  u8 studio;
  /* These were moved to near the start of the structure in later versions */
#if MUSY_VERSION <= MUSY_VERSION_CHECK(1, 5, 3)
  u8 hwStreamHandle;
  u32 nextStreamHandle;
#endif
} STREAM_INFO;

void streamOutputModeChanged();
u8 inpTranslateExCtrl(u8 ctrl);
void inpSetGlobalMIDIDirtyFlag(u8 chan, u8 midiSet, s32 flag);
void inpAddCtrl(CTRL_DEST* dest, u8 ctrl, s32 scale, u8 comb, u32 isVar);
void inpSetMidiCtrl(u8 ctrl, u8 channel, u8 set, u8 value);
void inpSetMidiCtrl14(u8 ctrl, u8 channel, u8 set, u16 value);
void inpSetExCtrl(SYNTH_VOICE* svoice, u8 ctrl, s16 v);
CHANNEL_DEFAULTS* inpGetChannelDefaults(u8 midi, u8 midiSet);
extern CTRL_DEST inpAuxA[8][4];
extern CTRL_DEST inpAuxB[8][4];
void inpSetMidiLastNote(u8 midi, u8 midiSet, u8 key);
u8 inpGetMidiLastNote(u8 midi, u8 midiSet);
u16 inpGetExCtrl(SYNTH_VOICE* svoice, u8 ctrl);
u16 inpGetMidiCtrl(u8 ctrl, u8 channel, u8 set);
void inpSetMidiLastNote(u8 midi, u8 midiSet, u8 key);
u16 inpGetModulation(SYNTH_VOICE* svoice);
void inpResetMidiCtrl(u8 ch, u8 set, u32 coldReset);
void inpResetChannelDefaults(u8 midi, u8 midiSet);
u16 inpGetPitchBend(SYNTH_VOICE* svoice);
u16 inpGetDoppler(SYNTH_VOICE* svoice);
u16 inpGetTremolo(SYNTH_VOICE* svoice);
u16 inpGetPanning(SYNTH_VOICE* svoice);
u16 inpGetSurPanning(SYNTH_VOICE* svoice);
u16 inpGetVolume(SYNTH_VOICE* svoice);
u16 inpGetReverb(SYNTH_VOICE* svoice);
u16 inpGetPreAuxA(SYNTH_VOICE* svoice);
u16 inpGetPostAuxA(SYNTH_VOICE* svoice);
u16 inpGetPreAuxB(SYNTH_VOICE* svoice);
u16 inpGetPostAuxB(SYNTH_VOICE* svoice);
u16 inpGetPedal(SYNTH_VOICE* svoice);
u16 inpGetAuxA(u8 studio, u8 index, u8 midi, u8 midiSet);
u16 inpGetAuxB(u8 studio, u8 index, u8 midi, u8 midiSet);

/* TODO: Figure out what `unk` is */
void hwSetSRCType(u32 v, u8 salSRCType);
void hwSetITDMode(u32 v, u8 mode);
void hwSetPolyPhaseFilter(u32 v, u8 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();
void hwStart(u32 v, u8 studio);
void hwKeyOff(u32 v);
void hwFrameDone();

extern u32 dspHRTFOn;

extern u16* dspCmdList;
extern u16 dspCmdFirstSize;

extern u8 dspScale2IndexTab[1024];

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

u32 aramGetStreamBufferAddress(u8 id, u32* len);
void aramUploadData(void* mram, u32 aram, u32 len, u32 highPrio, void (*callback)(u32), u32 user);
void aramFreeStreamBuffer(u8 id);
void* aramStoreData(void* src, u32 len);
void aramRemoveData(void* aram, u32 len);
u8 aramAllocateStreamBuffer(u32 len);
u32 macStart(u16 macid, u8 priority, u8 maxVoices, u16 allocId, u8 key, u8 vol, u8 panning, u8 midi,
             u8 midiSet, u8 section, u16 step, u16 trackid, u8 new_vid, u8 vGroup, u8 studio,
             u32 itd);
void macHandle(u32 deltaTime);
void macMakeInactive(SYNTH_VOICE* svoice, MAC_STATE);
void macSetPedalState(SYNTH_VOICE* svoice, u32 state);
void macSetExternalKeyoff(SYNTH_VOICE* svoice);
void macSampleEndNotify(SYNTH_VOICE* sv);

void sndProfUpdateMisc(SND_PROFILE_INFO* info);
void sndProfResetPMC(SND_PROFILE_DATA* info);
void sndProfStartPMC(SND_PROFILE_DATA* info);

void vidRemoveVoiceReferences(SYNTH_VOICE* svoice);
u32 vidMakeNew(SYNTH_VOICE* svoice, u32 isMaster);
u32 vidMakeRoot(SYNTH_VOICE* svoice);

u32 adsrHandleLowPrecision(ADSR_VARS* adsr, u16* adsr_start, u16* adsr_delta);
bool adsrRelease(ADSR_VARS* adsr);

#ifdef __cplusplus
}
#endif
#endif // _MUSYX_MUSYX_PRIV