synthesis.h File Reference

#include "audio/internal.h"
#include <libultra/gbi.h>

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Data Structures
struct	ReverbRingBufferItem
struct	SynthesisReverb

Macros
#define	DEFAULT_LEN_1CH   0x180
#define	DEFAULT_LEN_2CH   0x300
#define	DMEM_ADDR_TEMP   0x0
#define	DMEM_ADDR_RESAMPLED   0x20
#define	DMEM_ADDR_RESAMPLED2   0x1A0
#define	DMEM_ADDR_UNCOMPRESSED_NOTE   0x180
#define	DMEM_ADDR_NOTE_PAN_TEMP   0x200
#define	DMEM_ADDR_STEREO_STRONG_TEMP_DRY   0x200
#define	DMEM_ADDR_STEREO_STRONG_TEMP_WET   0x340
#define	DMEM_ADDR_COMPRESSED_ADPCM_DATA   0x3f0
#define	DMEM_ADDR_LEFT_CH   0x540
#define	DMEM_ADDR_RIGHT_CH   0x6C0
#define	DMEM_ADDR_WET_LEFT_CH   0x840
#define	DMEM_ADDR_WET_RIGHT_CH   0x9C0
#define	MAX_UPDATES_PER_FRAME   5
#define	ALIGN(val, amnt)

Functions
void	prepare_reverb_ring_buffer (s32 chunkLen, u32 updateIndex, s32 reverbIndex)
Acmd *	synthesis_load_reverb_ring_buffer (Acmd *, u16, u16, s32, s32)
Acmd *	synthesis_save_reverb_ring_buffer (Acmd *, u16, u16, s32, s32)
void	func_800B6FB4 (s32 updateIndexStart, s32 noteIndex)
void	synthesis_load_note_subs_eu (s32 updateIndex)
Acmd *	synthesis_execute (Acmd *, s32 *, s16 *, s32)
Acmd *	synthesis_resample_and_mix_reverb (Acmd *, s32, s16, s16)
Acmd *	synthesis_save_reverb_samples (Acmd *, s16, s16)
Acmd *	synthesis_do_one_audio_update (s16 *, s32, Acmd *, s32)
Acmd *	synthesis_process_note (s32 noteIndex, struct NoteSubEu *noteSubEu, struct NoteSynthesisState *synthesisState, s16 *aiBuf, s32 inBuf, Acmd *cmd, s32 updateIndex)
Acmd *	load_wave_samples (Acmd *acmd, struct NoteSubEu *noteSubEu, struct NoteSynthesisState *synthesisState, s32 nSamplesToLoad)
Acmd *	final_resample (Acmd *acmd, struct NoteSynthesisState *synthesisState, s32 count, u16 pitch, u16 dmemIn, u32 flags)
Acmd *	func_800B86A0 (Acmd *cmd, struct NoteSubEu *note, struct NoteSynthesisState *synthesisState, s32 nSamples, u16 inBuf, s32 headsetPanSettings, u32 flags)
Acmd *	note_apply_headset_pan_effects (Acmd *acmd, struct NoteSubEu *noteSubEu, struct NoteSynthesisState *note, s32 bufLen, s32 flags, s32 leftRight)
Acmd *	note_apply_surround_effect (Acmd *cmd, struct Note *note, s32 bufLen)

Variables
struct SynthesisReverb	gSynthesisReverbs [4]

Macro Definition Documentation

ALIGN

#define ALIGN	(		val,
			amnt )

Value:

(((val) + (1 << amnt) - 1) & ~((1 << amnt) - 1))

DEFAULT_LEN_1CH

#define DEFAULT_LEN_1CH   0x180

DEFAULT_LEN_2CH

#define DEFAULT_LEN_2CH   0x300

DMEM_ADDR_COMPRESSED_ADPCM_DATA

#define DMEM_ADDR_COMPRESSED_ADPCM_DATA   0x3f0

DMEM_ADDR_LEFT_CH

#define DMEM_ADDR_LEFT_CH   0x540

DMEM_ADDR_NOTE_PAN_TEMP

#define DMEM_ADDR_NOTE_PAN_TEMP   0x200

DMEM_ADDR_RESAMPLED

#define DMEM_ADDR_RESAMPLED   0x20

DMEM_ADDR_RESAMPLED2

#define DMEM_ADDR_RESAMPLED2   0x1A0

DMEM_ADDR_RIGHT_CH

#define DMEM_ADDR_RIGHT_CH   0x6C0

DMEM_ADDR_STEREO_STRONG_TEMP_DRY

#define DMEM_ADDR_STEREO_STRONG_TEMP_DRY   0x200

DMEM_ADDR_STEREO_STRONG_TEMP_WET

#define DMEM_ADDR_STEREO_STRONG_TEMP_WET   0x340

DMEM_ADDR_TEMP

#define DMEM_ADDR_TEMP   0x0

DMEM_ADDR_UNCOMPRESSED_NOTE

#define DMEM_ADDR_UNCOMPRESSED_NOTE   0x180

DMEM_ADDR_WET_LEFT_CH

#define DMEM_ADDR_WET_LEFT_CH   0x840

DMEM_ADDR_WET_RIGHT_CH

#define DMEM_ADDR_WET_RIGHT_CH   0x9C0

MAX_UPDATES_PER_FRAME

#define MAX_UPDATES_PER_FRAME   5

Function Documentation

final_resample()

Acmd * final_resample	(	Acmd *	acmd,
		struct NoteSynthesisState *	synthesisState,
		s32	count,
		u16	pitch,
		u16	dmemIn,
		u32	flags )

func_800B6FB4()

void func_800B6FB4	(	s32	updateIndexStart,
		s32	noteIndex )

func_800B86A0()

Acmd * func_800B86A0	(	Acmd *	cmd,
		struct NoteSubEu *	note,
		struct NoteSynthesisState *	synthesisState,
		s32	nSamples,
		u16	inBuf,
		s32	headsetPanSettings,
		u32	flags )

load_wave_samples()

Acmd * load_wave_samples	(	Acmd *	acmd,
		struct NoteSubEu *	noteSubEu,
		struct NoteSynthesisState *	synthesisState,
		s32	nSamplesToLoad )

note_apply_headset_pan_effects()

Acmd * note_apply_headset_pan_effects	(	Acmd *	acmd,
		struct NoteSubEu *	noteSubEu,
		struct NoteSynthesisState *	note,
		s32	bufLen,
		s32	flags,
		s32	leftRight )

note_apply_surround_effect()

Acmd * note_apply_surround_effect	(	Acmd *	cmd,
		struct Note *	note,
		s32	bufLen )

Apply surround sound effect using matrix encoding based on depth position. Uses surroundEffectIndex (0x00-0x7F) calculated from Z position: 0x00-0x3F: Sound in front (0 = far front, 0x3F = at camera) - less rear effect 0x40-0x7F: Sound behind (0x40 = at camera, 0x7F = far behind) - more rear effect

This creates a rear channel effect by phase-inverting and mixing based on pan and depth.

prepare_reverb_ring_buffer()

void prepare_reverb_ring_buffer	(	s32	chunkLen,
		u32	updateIndex,
		s32	reverbIndex )

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synthesis_do_one_audio_update()

Acmd * synthesis_do_one_audio_update	(	s16 *	aiBuf,
		s32	bufLen,
		Acmd *	acmd,
		s32	updateIndex )

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synthesis_execute()

Acmd * synthesis_execute	(	Acmd *	acmd,
		s32 *	writtenCmds,
		s16 *	aiBuf,
		s32	bufLen )

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synthesis_load_note_subs_eu()

void synthesis_load_note_subs_eu

(

s32

updateIndex

)

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synthesis_load_reverb_ring_buffer()

Acmd * synthesis_load_reverb_ring_buffer	(	Acmd *	acmd,
		u16	addr,
		u16	srcOffset,
		s32	len,
		s32	reverbIndex )

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synthesis_process_note()

Acmd * synthesis_process_note	(	s32	noteIndex,
		struct NoteSubEu *	noteSubEu,
		struct NoteSynthesisState *	synthesisState,
		s16 *	aiBuf,
		s32	inBuf,
		Acmd *	cmd,
		s32	updateIndex )

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synthesis_resample_and_mix_reverb()

Acmd * synthesis_resample_and_mix_reverb	(	Acmd *	acmd,
		s32	bufLen,
		s16	reverbIndex,
		s16	updateIndex )

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synthesis_save_reverb_ring_buffer()

Acmd * synthesis_save_reverb_ring_buffer	(	Acmd *	acmd,
		u16	addr,
		u16	destOffset,
		s32	len,
		s32	reverbIndex )

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synthesis_save_reverb_samples()

Acmd * synthesis_save_reverb_samples	(	Acmd *	acmd,
		s16	reverbIndex,
		s16	updateIndex )

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Variable Documentation

gSynthesisReverbs

struct SynthesisReverb gSynthesisReverbs[4]

extern