sound functions

Functions
void	ASND_End (void)
	De-initializes the ASND lib. More...
s32	ASND_GetAudioRate (void)
	Returns the current audio rate. 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_GetTime (void)
	Returns the global 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...
void	ASND_SetCallback (void(*callback)(void))
	Sets a global callback for general purposes. More...
void	ASND_SetTime (u32 time)
	Set the global time. More...

Detailed Description

Function Documentation

ASND_End()

void ASND_End

(

void

)

De-initializes the ASND lib.

Returns

None.

ASND_GetAudioRate()

s32 ASND_GetAudioRate

(

void

)

Returns the current audio rate.

Note

This function is implemented for compatibility with SNDLIB.

Returns

Audio rate (48000).

ASND_GetSampleCounter()

u32 ASND_GetSampleCounter

(

void

)

Retrieves the global sample counter.

This counter is updated from the IRQ in steps of ASND_GetSamplesPerTick().

Note

You can use this to implement one timer with high precision.

Returns

Current sample.

ASND_GetSamplesPerTick()

u32 ASND_GetSamplesPerTick

(

void

)

Retrieves the samples sent from the IRQ in one tick.

Returns

Samples per tick.

ASND_GetTime()

u32 ASND_GetTime

(

void

)

Returns the global time.

The time is updated from the IRQ.

Returns

The current time, in milliseconds.

ASND_Init()

void ASND_Init

(

void

)

Initializes the ASND lib and fixes the hardware sample rate to 48000.

Returns

None.

ASND_Is_Paused()

s32 ASND_Is_Paused

(

void

)

Returns sound paused status.

Returns

1 if paused, 0 if unpaused.

ASND_Pause()

void ASND_Pause

(

s32

paused

)

Used to pause (or unpause) the sound.

Note

The sound starts paused when ASND_Init() is called.

Parameters

[in]

paused

If 1, sound is paused; sound can be unpaused with 0.

Returns

None.

ASND_SetCallback()

void ASND_SetCallback

(

void(*)(void)

callback

)

Sets a global callback for general purposes.

This callback is called from the IRQ.

Parameters

[in]

callback

Callback function to assign.

Returns

None.

ASND_SetTime()

void ASND_SetTime

(

u32

time

)

Set the global time.

This time is updated from the IRQ.

Parameters

[in]

time

Fix the current time, in milliseconds.

Returns

None.