ASND library. More...

#include <gctypes.h>

Macros
#define	__SNDLIB_H__

#define	ASND_LIB 0x100

#define	F44100HZ_PITCH 44100

#define	INIT_RATE_48000

#define	MAX_PITCH 144000

#define	MAX_SND_VOICES 16

#define	MAX_VOLUME 255

#define	MID_VOLUME 127

#define	MIN_PITCH 1

#define	MIN_VOLUME 0

#define	NOTE(note, octave) (note+(octave<<3)+(octave<<2))

#define	Note2Freq ANote2Freq

#define	SND_AddVoice ASND_AddVoice

#define	SND_BUSY 1

#define	SND_ChangePitchVoice ASND_ChangePitchVoice

#define	SND_ChangeVolumeVoice ASND_ChangeVolumeVoice

#define	SND_ChangeVolumeVoice ASND_ChangeVolumeVoice

#define	SND_End ASND_End

#define	SND_GetAudioRate ASND_GetAudioRate

#define	SND_GetFirstUnusedVoice ASND_GetFirstUnusedVoice

#define	SND_GetSampleCounter ASND_GetSampleCounter

#define	SND_GetSamplesPerTick ASND_GetSamplesPerTick

#define	SND_GetTickCounterVoice ASND_GetTickCounterVoice

#define	SND_GetTime ASND_GetTime

#define	SND_GetTimerVoice ASND_GetTimerVoice

#define	SND_Init ASND_Init

#define	SND_INVALID -1

#define	SND_Is_Paused ASND_Is_Paused

#define	SND_ISNOTASONGVOICE -2

#define	SND_LIB (ASND_LIB+2)

#define	SND_OK 0

#define	SND_Pause ASND_Pause

#define	SND_PauseVoice ASND_PauseVoice

#define	SND_SetCallback ASND_SetCallback

#define	SND_SetTime ASND_SetTime

#define	SND_SetVoice ASND_SetVoice

#define	SND_StatusVoice ASND_StatusVoice

#define	SND_StopVoice ASND_StopVoice

#define	SND_TestPointer ASND_TestPointer

#define	SND_UNUSED 0

#define	SND_WAITING 2

#define	SND_WORKING 1

#define	VOICE_MONO_16BIT 1

#define	VOICE_MONO_16BIT_BE 1

#define	VOICE_MONO_16BIT_LE 5

#define	VOICE_MONO_8BIT 0

#define	VOICE_MONO_8BIT_U 4

#define	VOICE_STEREO_16BIT 3

#define	VOICE_STEREO_16BIT_BE 3

#define	VOICE_STEREO_16BIT_LE 7

#define	VOICE_STEREO_8BIT 2

#define	VOICE_STEREO_8BIT_U 6

Typedefs
typedef void(*	ASNDVoiceCallback) (s32 voice)
	Callback type for ASND_SetVoice().

Enumerations
enum	{ NOTE_DO =0 , NOTE_DOs , NOTE_REb =NOTE_DOs , NOTE_RE , NOTE_REs , NOTE_MIb =NOTE_REs , NOTE_MI , NOTE_FA , NOTE_FAs , NOTE_SOLb =NOTE_FAs , NOTE_SOL , NOTE_SOLs , NOTE_LAb =NOTE_SOLs , NOTE_LA , NOTE_LAs , NOTE_SIb =NOTE_LAs , NOTE_SI }

enum	{ NOTE_C =0 , NOTE_Cs , NOTE_Db =NOTE_Cs , NOTE_D , NOTE_Ds , NOTE_Eb =NOTE_Ds , NOTE_E , NOTE_F , NOTE_Fs , NOTE_Gb =NOTE_Fs , NOTE_G , NOTE_Gs , NOTE_Ab =NOTE_Gs , NOTE_A , NOTE_As , NOTE_Bb =NOTE_As , NOTE_B }

Functions
int	ANote2Freq (int note, int freq_base, int note_base)
	Initializes the SND lib and fixes the hardware sample rate. More...

s32	ASND_AddVoice (s32 voice, void *snd, s32 size_snd)
	Adds a PCM voice to play from the second buffer. More...

s32	ASND_ChangePitchVoice (s32 voice, s32 pitch)
	Changes the voice pitch in real-time. More...

s32	ASND_ChangeVolumeVoice (s32 voice, s32 volume_l, s32 volume_r)
	Changes the voice volume in real-time. More...

void	ASND_End (void)
	De-initializes the ASND lib. More...

s32	ASND_GetAudioRate (void)
	Returns the current audio rate. More...

u32	ASND_GetDSP_PercentUse (void)
	Returns the DSP usage. More...

u32	ASND_GetDSP_ProcessTime (void)

s32	ASND_GetFirstUnusedVoice (void)
	Returns the first unused voice. More...

u32	ASND_GetSampleCounter (void)
	Retrieves the global sample counter. More...

u32	ASND_GetSamplesPerTick (void)
	Retrieves the samples sent from the IRQ in one tick. More...

u32	ASND_GetTickCounterVoice (s32 voice)
	Returns the voice tick counter. More...

u32	ASND_GetTime (void)
	Returns the global time. More...

u32	ASND_GetTimerVoice (s32 voice)
	Returns the voice playback time. More...

void	ASND_Init (void)
	Initializes the ASND lib and fixes the hardware sample rate to 48000. More...

s32	ASND_Is_Paused (void)
	Returns sound paused status. More...

void	ASND_Pause (s32 paused)
	Used to pause (or unpause) the sound. More...

s32	ASND_PauseVoice (s32 voice, s32 pause)
	Pauses the selected voice. More...

void	ASND_SetCallback (void(*callback)(void))
	Sets a global callback for general purposes. More...

s32	ASND_SetInfiniteVoice (s32 voice, s32 format, s32 pitch, s32 delay, void *snd, s32 size_snd, s32 volume_l, s32 volume_r)
	Sets a PCM voice to play infinitely. More...

void	ASND_SetTime (u32 time)
	Set the global time. More...

s32	ASND_SetVoice (s32 voice, s32 format, s32 pitch, s32 delay, void *snd, s32 size_snd, s32 volume_l, s32 volume_r, ASNDVoiceCallback callback)
	Sets a PCM voice to play. More...

s32	ASND_StatusVoice (s32 voice)
	Returns the status of the selected voice. More...

s32	ASND_StopVoice (s32 voice)
	Stops the selected voice. More...

s32	ASND_TestPointer (s32 voice, void *pointer)
	Tests if pointer is in use by voice as a buffer. More...

s32	ASND_TestVoiceBufferReady (s32 voice)
	Tests to determine if the voice is ready to receive a new buffer sample with ASND_AddVoice(). More...

Detailed Description

ASND library.

Function Documentation

◆ ANote2Freq()

int ANote2Freq	(	int	note,
		int	freq_base,
		int	note_base
	)

Initializes the SND lib and fixes the hardware sample rate.

Parameters

[in]	note	Note codification to play. for example: NOTE(C,4) for note C and octave 4.
[in]	freq_base	Frequency base of the sample. For example 8000Hz.
[in]	note_base	Note codification of the sample. For example: NOTE(L, 3) for note L and octave 3 (LA 3).

Returns: Frequency, in Hz.

Macros

Typedefs

Enumerations

Functions

Detailed Description

Function Documentation

◆ ANote2Freq()