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7fdb5af8fd
* Bugfix: BETTER_REVERB starts before buffers are ready * Add support for preset options to be used with BETTER_REVERB * Some BETTER_REVERB cleanup * The funny whoops * Address suggested level script change * Bugfix: useReverb crashes when disabled * Allow window size override for vanilla-esque BETTER_REVERB presets * Remove unnecessary downsampling limit check * Fix up a few things + some slight reformatting * Add light documentation to the BETTER_REVERB parameters * Adjust BETTER_REVERB preset types to make more sense * Reset BETTER_REVERB data buffer to be unallocated when not in use * Properly disable BETTER_REVERB when disabling all reverb processing * Remove an unnecessary BETTER_REVERB ifdef * Remove D_80332108 * Revise BETTER_REVERB config description
157 lines
4.9 KiB
C
157 lines
4.9 KiB
C
#ifndef AUDIO_SYNTHESIS_H
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#define AUDIO_SYNTHESIS_H
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#include "internal.h"
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#ifdef VERSION_SH
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#define DEFAULT_LEN_1CH 0x180
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#define DEFAULT_LEN_2CH 0x300
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#else
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#define DEFAULT_LEN_1CH 0x140
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#define DEFAULT_LEN_2CH 0x280
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#endif
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#if defined(VERSION_EU) || defined(VERSION_SH)
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#define MAX_UPDATES_PER_FRAME 5
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#else
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#define MAX_UPDATES_PER_FRAME 4
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#endif
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#define ALIGN16(val) (((val) + 0xF) & ~0xF)
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#ifdef BETTER_REVERB
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#define NUM_ALLPASS 12 // Maximum number of delay filters to use with better reverb; do not change this value if you don't know what you're doing.
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#define BETTER_REVERB_PTR_SIZE ALIGN16(NUM_ALLPASS * sizeof(s32*) * 2) // Allocation space consumed by dynamically allocated pointers
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// Size determined by (all delaysL/R values * 8) / (2 ^ Minimum Downsample Factor).
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// The default value can be increased or decreased in conjunction with the values in delaysL/R
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#define BETTER_REVERB_SIZE ALIGN16(0x1E000 + BETTER_REVERB_PTR_SIZE) // This can be significantly decreased if a downsample rate of 1 is not being used.
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extern u8 gBetterReverbPreset;
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extern s8 betterReverbDownsampleRate;
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extern u8 monoReverb;
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extern s32 reverbFilterCount;
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extern s32 betterReverbWindowsSize;
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extern s32 betterReverbRevIndex;
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extern s32 betterReverbGainIndex;
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extern s32 *gReverbMultsL;
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extern s32 *gReverbMultsR;
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extern u8 toggleBetterReverb;
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#define REVERB_WINDOW_SIZE_MAX 0x2000
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STATIC_ASSERT(NUM_ALLPASS % 3 == 0, "NUM_ALLPASS must be a multiple of 3!");
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#else
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#define BETTER_REVERB_SIZE 0
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#ifdef VERSION_EU
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#define REVERB_WINDOW_SIZE_MAX 0x1000
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#else
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#define REVERB_WINDOW_SIZE_MAX 0x1000
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#endif
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#endif
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#if defined(VERSION_JP) || defined(VERSION_US)
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#define REVERB_WINDOW_HEAP_SIZE \
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( \
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(REVERB_WINDOW_SIZE_MAX * sizeof(s16) * 2) \
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+ (4 * (16 * sizeof(s16))) \
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+ (4 /* gAudioUpdatesPerFrame */ * (2 * DEFAULT_LEN_2CH)) \
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)
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#else
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#define REVERB_WINDOW_HEAP_SIZE \
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( \
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((REVERB_WINDOW_SIZE_MAX * sizeof(s16) * 2) \
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+ (4 * (16 * sizeof(s16))) \
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+ (4 /* gAudioUpdatesPerFrame */ * (2 * DEFAULT_LEN_2CH))) \
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* 4 /* gNumSynthesisReverbs */ \
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)
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#endif
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struct ReverbRingBufferItem {
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s16 numSamplesAfterDownsampling;
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s16 chunkLen; // never read
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s16 *toDownsampleLeft;
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s16 *toDownsampleRight; // data pointed to by left and right are adjacent in memory
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s32 startPos; // start pos in ring buffer
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s16 lengthA; // first length in ring buffer (from startPos, at most until end)
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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, 0x00, 0x00*/ u8 resampleFlags;
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/*0x01, 0x01, 0x01*/ u8 useReverb;
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/*0x02, 0x02, 0x02*/ u8 framesLeftToIgnore;
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/*0x03, 0x03, 0x03*/ u8 curFrame;
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#if defined(VERSION_EU) || defined(VERSION_SH)
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/* 0x04, 0x04*/ u8 downsampleRate;
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#ifdef VERSION_SH
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/* 0x05*/ s8 unk5;
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#endif
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/* 0x06, 0x06*/ u16 windowSize; // same as bufSizePerChannel
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#endif
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#ifdef VERSION_SH
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/* 0x08*/ u16 unk08;
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#endif
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/*0x04, 0x08, 0x0A*/ u16 reverbGain;
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/*0x06, 0x0A, 0x0C*/ u16 resampleRate;
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#ifdef VERSION_SH
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/* 0x0E*/ u16 panRight;
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/* 0x10*/ u16 panLeft;
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#endif
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/*0x08, 0x0C, 0x14*/ s32 nextRingBufferPos;
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/*0x0C, 0x10, 0x18*/ s32 unkC; // never read
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/*0x10, 0x14, 0x1C*/ s32 bufSizePerChannel;
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struct {
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s16 *left;
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s16 *right;
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} ringBuffer;
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/*0x1C, 0x20, 0x28*/ s16 *resampleStateLeft;
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/*0x20, 0x24, 0x2C*/ s16 *resampleStateRight;
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/*0x24, 0x28, 0x30*/ s16 *unk24; // never read
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/*0x28, 0x2C, 0x34*/ s16 *unk28; // never read
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/*0x2C, 0x30, 0x38*/ struct ReverbRingBufferItem items[2][MAX_UPDATES_PER_FRAME];
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#if defined(VERSION_EU) || defined(VERSION_SH)
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// Only used in sh:
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/* 0x100*/ s16 *unk100;
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/* 0x104*/ s16 *unk104;
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/* 0x108*/ s16 *unk108;
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/* 0x10C*/ s16 *unk10C;
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#endif
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}; // 0xCC <= size <= 0x100
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#if defined(VERSION_EU) || defined(VERSION_SH)
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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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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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#else
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extern struct SynthesisReverb gSynthesisReverb;
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#endif
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#ifdef VERSION_SH
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extern s16 D_SH_803479B4;
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#endif
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#ifdef BETTER_REVERB
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void initialize_better_reverb_buffers(void);
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void set_better_reverb_buffers(u32 *inputDelaysL, u32 *inputDelaysR);
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#endif
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u64 *synthesis_execute(u64 *cmdBuf, s32 *writtenCmds, s16 *aiBuf, s32 bufLen);
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#if defined(VERSION_JP) || defined(VERSION_US)
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void note_init_volume(struct Note *note);
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void note_set_vel_pan_reverb(struct Note *note, f32 velocity, f32 pan, u8 reverbVol);
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void note_set_frequency(struct Note *note, f32 frequency);
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void note_enable(struct Note *note);
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void note_disable(struct Note *note);
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#endif
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#endif // AUDIO_SYNTHESIS_H
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