mirror of
https://github.com/HarbourMasters/SpaghettiKart
synced 2026-08-15 21:19:55 -04:00
Tyler McGavran
e9415164bb
* Lots of audio decomp * effects and playback are 100% matched * Took some notes from the SM64 Makefile to get the right compiler options for a couple files * Added the audio files to rename_symbol utility Signed-off-by: Taggerung <tyler.taggerung@gmail.com>
114 lines
4.3 KiB
C
114 lines
4.3 KiB
C
#ifndef AUDIO_SYNTHESIS_H
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#define AUDIO_SYNTHESIS_H
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#include "audio/internal.h"
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#include "PR/abi.h"
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#define DEFAULT_LEN_1CH 0x180
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#define DEFAULT_LEN_2CH 0x300
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/*
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Its not clear what values these macros should have. Neither version seem to
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line up for MK64. Maybe each game has unique values for these? I don't know
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enough about the Audio engine stuff to speculate beyond that.
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Non-Shindou SM64
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#define DMEM_ADDR_TEMP 0x0
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#define DMEM_ADDR_RESAMPLED 0x20
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#define DMEM_ADDR_RESAMPLED2 0x160
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#define DMEM_ADDR_UNCOMPRESSED_NOTE 0x180
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#define DMEM_ADDR_NOTE_PAN_TEMP 0x200
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#define DMEM_ADDR_STEREO_STRONG_TEMP_DRY 0x200
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#define DMEM_ADDR_STEREO_STRONG_TEMP_WET 0x340
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#define DMEM_ADDR_COMPRESSED_ADPCM_DATA 0x3f0
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#define DMEM_ADDR_LEFT_CH 0x4c0
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#define DMEM_ADDR_RIGHT_CH 0x600
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#define DMEM_ADDR_WET_LEFT_CH 0x740
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#define DMEM_ADDR_WET_RIGHT_CH 0x880
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Shindou SM64
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#define DMEM_ADDR_TEMP 0x450
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#define DMEM_ADDR_RESAMPLED 0x470
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#define DMEM_ADDR_RESAMPLED2 0x5f0
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#define DMEM_ADDR_UNCOMPRESSED_NOTE 0x5f0
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#define DMEM_ADDR_NOTE_PAN_TEMP 0x650
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#define DMEM_ADDR_COMPRESSED_ADPCM_DATA 0x990
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#define DMEM_ADDR_LEFT_CH 0x990
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#define DMEM_ADDR_RIGHT_CH 0xb10
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#define DMEM_ADDR_WET_LEFT_CH 0xc90
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#define DMEM_ADDR_WET_RIGHT_CH 0xe10
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*/
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#define MAX_UPDATES_PER_FRAME 5
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struct ReverbRingBufferItem {
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/* 0x00 */ s16 numSamplesAfterDownsampling;
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/* 0x02 */ s16 chunkLen; // never read
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/* 0x04 */ s16 *toDownsampleLeft;
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/* 0x08 */ s16 *toDownsampleRight; // data pointed to by left and right are adjacent in memory
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/* 0x0C */ s32 startPos; // start pos in ring buffer
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/* 0x10 */ s16 lengthA; // first length in ring buffer (from startPos, at most until end)
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/* 0x12 */ s16 lengthB; // second length in ring buffer (from pos 0)
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}; // size = 0x14
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struct SynthesisReverb {
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/* 0x00 */ u8 resampleFlags;
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/* 0x01 */ u8 useReverb;
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/* 0x02 */ u8 framesLeftToIgnore;
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/* 0x03 */ u8 curFrame;
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/* 0x04 */ u8 downsampleRate;
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/* 0x05 */ // u8 compilerPadding;
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/* 0x06 */ u16 windowSize; // same as bufSizePerChannel
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/* 0x08 */ u16 reverbGain;
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/* 0x0A */ u16 resampleRate;
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/* 0x0C */ s32 nextRingBufferPos;
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/* 0x10 */ s32 unkC; // never read
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/* 0x14 */ s32 bufSizePerChannel;
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struct {
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/* 0x18 */ s16 *left;
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/* 0x1C */ s16 *right;
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} ringBuffer;
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/* 0x20 */ s16 *resampleStateLeft;
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/* 0x24 */ s16 *resampleStateRight;
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/* 0x28 */ s16 *unk24; // never read
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/* 0x2C */ s16 *unk28; // never read
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/* 0x30 */ struct ReverbRingBufferItem items[2][MAX_UPDATES_PER_FRAME];
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/* 0xF8 */ s16 *unkF8;
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/* 0xFC */ s16 *unkFC;
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/* 0x100 */ s16 *unk100;
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/* 0x104 */ s16 *unk104;
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}; // size = 0x108
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#define ALIGN(val, amnt) (((val) + (1 << amnt) - 1) & ~((1 << amnt) - 1))
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void prepare_reverb_ring_buffer(s32 chunkLen, u32 updateIndex, s32 reverbIndex);
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u64 *synthesis_execute(u64 *cmdBuf, s32 *writtenCmds, s16 *aiBuf, s32 bufLen);
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Acmd *synthesis_load_reverb_ring_buffer(Acmd*, u16, u16, s32, s32);
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Acmd *synthesis_save_reverb_ring_buffer(Acmd*, u16, u16, s32, s32);
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void func_800B6FB4(s32 updateIndexStart, s32 noteIndex);
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void synthesis_load_note_subs_eu(s32 updateIndex);
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Acmd *synthesis_resample_and_mix_reverb(Acmd*, s32, s16, s16);
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Acmd *synthesis_load_reverb_samples(Acmd*, s16, s16);
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Acmd *load_wave_samples(Acmd *acmd, struct NoteSubEu *noteSubEu, struct NoteSynthesisState *synthesisState, s32 nSamplesToLoad);
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Acmd *final_resample(Acmd *acmd, struct NoteSynthesisState *synthesisState, s32 count, u16 pitch, u16 dmemIn, u32 flags);
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Acmd *note_apply_headset_pan_effects(Acmd *acmd, struct NoteSubEu *noteSubEu, struct NoteSynthesisState *note, s32 bufLen, s32 flags, s32 leftRight);
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extern struct AudioBufferParametersEU gAudioBufferParameters;
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extern s32 gMaxSimultaneousNotes;
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extern struct SynthesisReverb gSynthesisReverbs[4];
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extern s8 gNumSynthesisReverbs;
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extern struct NoteSubEu *gNoteSubsEu;
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/*
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SO
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gLeftVolRampings is almost certainly gAudioSessionPool (D_803AFBC8) in disguise, but since
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synthesis' ro/data has already been broken out it'll be very hard to fix that.
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extern f32 gLeftVolRampings[3][1024];
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extern f32 gRightVolRampings[3][1024];
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extern f32 *gCurrentLeftVolRamping; // Points to any of the three left buffers above
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extern f32 *gCurrentRightVolRamping; // Points to any of the three right buffers above
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*/
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#endif // AUDIO_SYNTHESIS_H
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