Sample Management

Functions
u16	audioGetFreeMemory (void)
	Get available SPC700 RAM for samples.
u8	audioGetSampleInfo (u8 id, AudioSample *info)
	Get information about a loaded sample.
u8	audioLoadSample (u8 id, const u8 *brrData, u16 size, u16 loopPoint)
	Load a BRR sample into SPC700 RAM.
void	audioUnloadSample (u8 id)
	Unload a sample from a slot.

Detailed Description

Function Documentation

audioGetFreeMemory()

u16 audioGetFreeMemory

(

void

)

Get available SPC700 RAM for samples.

Returns

Free bytes available

audioGetSampleInfo()

u8 audioGetSampleInfo	(	u8	id,
		AudioSample *	info
	)

Get information about a loaded sample.

Parameters

id	Sample ID
info	Pointer to AudioSample struct to fill

Returns

AUDIO_OK if loaded, AUDIO_ERR_NOT_LOADED otherwise

audioLoadSample()

u8 audioLoadSample	(	u8	id,
		const u8 *	brrData,
		u16	size,
		u16	loopPoint
	)

Load a BRR sample into SPC700 RAM.

Parameters

id	Sample slot (0-63)
brrData	Pointer to BRR sample data
size	Size in bytes (must be multiple of 9)
loopPoint	Loop offset in bytes, or 0 for no loop

Returns

AUDIO_OK on success, or error code

extern u8 explosion_brr[];
extern u8 explosion_brr_end[];
audioLoadSample(0, explosion_brr, explosion_brr_end - explosion_brr, 0);

audioUnloadSample()

void audioUnloadSample

(

u8

id

)

Unload a sample from a slot.

Parameters

id	Sample slot (0-63)

Any voices playing this sample will be stopped.