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https://github.com/ACreTeam/ac-decomp
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Cuyler36
136 lines
5.0 KiB
C
136 lines
5.0 KiB
C
#ifndef _JAUDIO_DSPINTERFACE_H
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#define _JAUDIO_DSPINTERFACE_H
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#include "types.h"
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#include "jaudio_NES/audiostruct.h"
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typedef struct DSPMixerChannel DSPMixerChannel;
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typedef struct DSPchannel_ DSPchannel_;
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typedef struct FXDestination FXDestination;
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typedef struct FXBuffer FXBuffer;
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// A lot of u16s in these DSP structs act like BOOL, so lets codify it.
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typedef u16 DSPBOOL;
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#define DSP_TRUE ((DSPBOOL)1)
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#define DSP_FALSE ((DSPBOOL)0)
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/////////// JAUDIO DSP INTERFACE DEFINITIONS ///////////
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// Global functions (all C++, so no extern C wrap).
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DSPchannel_* GetDspHandle(u8 idx);
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FXBuffer* GetFxHandle(u8 idx);
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void DSP_SetPitch(u8 idx, u16 pitch);
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void DSP_SetMixerInitDelayMax(u8 idx, u8 initDelayMax);
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void DSP_SetMixerInitVolume(u8 idx, u8 mixer, s16 volume, u8 param_4);
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void DSP_SetMixerVolume(u8 idx, u8 mixer, s16 volume, u8 param_4);
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void DSP_SetOscInfo(u8 idx, u32 samplesSourceType);
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void DSP_SetPauseFlag(u8 idx, u8 pauseFlag);
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void DSP_SetWaveInfo(u8 idx, Wave_* wave, u32 baseAddress);
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void DSP_SetBusConnect(u8 idx, u8 mixer, u8 busConnect);
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void DSP_PlayStop(u8 idx);
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void DSP_AllocInit(u8 idx);
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void DSP_PlayStart(u8 idx);
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void DSP_SetDistFilter(u8 idx, s16 distFilter);
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void DSP_SetFilterTable(s16* dst, s16* src, u32 len);
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void DSP_SetIIRFilterParam(u8 idx, s16* param_2);
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void DSP_SetFIR8FilterParam(u8 idx, s16* param_2);
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void DSP_SetFilterMode(u8 idx, u16 filterMode);
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void DSP_InitFilter(u8 idx);
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void DSP_FlushBuffer();
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void DSP_FlushChannel(u8 idx);
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void DSP_InvalChannelAll();
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void DSP_ClearBuffer();
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void DSP_SetupBuffer();
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void DSP_InitBuffer();
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///////////////////////////////////////////////////////////////////////////////
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// Based on `ZeldaAudioRenderer::VPB` from Dolphin Emulator. Thank you all!
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/**
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* @brief TODO.
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*/
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struct DSPMixerChannel {
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u16 id; // _00
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u16 targetVolume; // _02
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u16 currentVolume; // _04
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u16 level; // _06
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};
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/**
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* @brief TODO.
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*/
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struct DSPchannel_ {
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DSPBOOL enabled; // _00 - DSP_AllocInit, DSP_PlayStop, DSP_PlayStart
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DSPBOOL done; // _02 - DSP_AllocInit
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u16 resamplingRatio; // _04 - DSP_SetPitch
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u16 _06; // _06
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DSPBOOL resetVpb; // _08 - DSP_PlayStart
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DSPBOOL endReached; // _0A
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DSPBOOL useConstantSample; // _0C - DSP_SetPauseFlag
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u16 samplesToKeepCount; // _0E - DSP_SetMixerInitDelayMax
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DSPMixerChannel mixChannels[6]; // _10 - DSP_SetMixerInitVolume, DSP_SetMixerVolume, DSP_SetBusConnect
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u8 _40[0x50 - 0x40]; // _40
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u16 dolbyVoicePosition; // _50
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s16 dolbyReverbFactor; // _52
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s16 dolbyVolumeCurrent; // _54
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s16 dolbyVolumeTarget; // _56
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DSPBOOL useDolbyVolume; // _58
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u16 _5A; // _5A
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u16 _5C; // _5C
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u16 _5E; // _5E
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u16 currentPosFrac; // _60 - DSP_PlayStart
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u16 _62; // _62
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u16 afcRemainingDecodedSamples; // _64 - DSP_SetOscInfo, DSP_SetWaveInfo
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s16 constantSample; // _66 - DSP_PlayStart
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u32 currentPosition; // _68 - DSP_PlayStart
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u16 samplesBeforeLoop; // _6C
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u16 _6E; // _6E
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u32 currentAramAddr; // _70
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u32 remainingLength; // _74
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s16 resampleBuffer[4]; // _78 - DSP_PlayStart
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u16 variableFirHistory[20]; // _80 - DSP_PlayStart
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s16 biquadHistory[4]; // _A8 - DSP_PlayStart
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u16 afcRemainingSamples[16]; // _B0 - DSP_SetWaveInfo
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s16 lowPassHistory[2]; // _D0
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u8 _D4[0x100 - 0xD4]; // _D4
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u16 samplesSourceType; // _100 - DSP_SetOscInfo, DSP_SetWaveInfo
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DSPBOOL isLooping; // _102 - DSP_SetWaveInfo
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s16 loopYN1; // _104 - DSP_SetWaveInfo
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s16 loopYN2; // _106 - DSP_SetWaveInfo
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s16 filterMode; // _108 - DSP_SetFilterMode
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DSPBOOL endRequested; // _10A - DSP_AllocInit, DSP_SetMixerVolume
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u32 _10C; // _10C - DSP_PlayStart
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u32 loopAddress; // _110 - DSP_SetWaveInfo
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u32 loopStartPosition; // _114 - DSP_SetWaveInfo
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u32 baseAddress; // _118 - DSP_SetOscInfo, DSP_SetWaveInfo
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u32 _11C; // _11C - DSP_SetWaveInfo
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s16 variableFirCoeffs[20]; // _120 - DSP_InitFilter, DSP_SetFIR8FilterParam
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s16 biquadFilterCoeffs[4]; // _148 - DSP_InitFilter, DSP_SetIIRFilterParam
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s16 lowPassCoeff; // _150 - DSP_InitFilter, DSP_SetDistFilter
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u8 padding[0x180 - 0x152]; // _152
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};
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///////////////////////////////////////////////////////////////////////////////
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// Based on `DSP::HLE::ReverbPB` from Dolphin Emulator. Thank you all!
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/**
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* @brief TODO. Does this name make sense? Dolphin calls this "Destination"
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*/
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struct FXDestination {
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u16 bufferId; // _00 - See DSPMixerChannel::id
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s16 volume; // _02 - 1.15 format.
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};
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/**
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* @brief TODO.
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*/
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struct FXBuffer {
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DSPBOOL enabled; // _00
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u16 circularBufferSize; // _02
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s16* circularBufferBase; // _04
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FXDestination dest[2]; // _08
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s16 filterCoeffs[8]; // _10
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};
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#endif
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