libsidplayfp::Mixer Class Reference

#include <mixer.h>

Public Member Functions
	Mixer ()
void	doMix ()
void	clockChips ()
void	resetBufs ()
void	begin (short *buffer, uint_least32_t count)
void	clearSids ()
void	addSid (sidemu *chip)
sidemu *	getSid (unsigned int i) const
bool	setFastForward (int ff)
void	setVolume (int_least32_t left, int_least32_t right)
void	setStereo (bool stereo)
bool	notFinished () const
uint_least32_t	samplesGenerated () const

Static Public Attributes
static const unsigned int	MAX_SIDS = 3
	Maximum number of supported SIDs.
static const int_least32_t	SCALE_FACTOR = 1 << 16
static const int_least32_t	C1 = static_cast<int_least32_t>(1.0 / (1.0 + SQRT_0_5) * SCALE_FACTOR)
static const int_least32_t	C2 = static_cast<int_least32_t>(SQRT_0_5 / (1.0 + SQRT_0_5) * SCALE_FACTOR)
static const int_least32_t	VOLUME_MAX = 1024
	Maximum allowed volume, must be a power of 2.

Detailed Description

This class implements the mixer.

Constructor & Destructor Documentation

Mixer()

libsidplayfp::Mixer::Mixer ( )

inline

Create a new mixer.

Member Function Documentation

addSid()

void libsidplayfp::Mixer::addSid

(

sidemu *

chip

)

Add a SID to the mixer.

Parameters

chip	the sid emu to add

begin()

void libsidplayfp::Mixer::begin	(	short *	buffer,
		uint_least32_t	count
	)

Prepare for mixing cycle.

Parameters

buffer	output buffer
count	size of the buffer in samples

clearSids()

void libsidplayfp::Mixer::clearSids

(

)

Remove all SIDs from the mixer.

clockChips()

void libsidplayfp::Mixer::clockChips

(

)

This clocks the SID chips to the present moment, if they aren't already.

doMix()

void libsidplayfp::Mixer::doMix

(

)

Do the mixing.

getSid()

sidemu* libsidplayfp::Mixer::getSid ( unsigned int  i ) const

inline

Get a SID from the mixer.

Parameters

i	the number of the SID to get

Returns

a pointer to the requested sid emu or 0 if not found

notFinished()

bool libsidplayfp::Mixer::notFinished ( ) const

inline

Check if the buffer have been filled.

resetBufs()

void libsidplayfp::Mixer::resetBufs

(

)

Reset sidemu buffer position discarding produced samples.

samplesGenerated()

uint_least32_t libsidplayfp::Mixer::samplesGenerated ( ) const

inline

Get the number of samples generated up to now.

setFastForward()

bool libsidplayfp::Mixer::setFastForward

(

int

ff

)

Set the fast forward ratio.

Parameters

ff	the fast forward ratio, from 1 to 32

Returns

true if parameter is valid, false otherwise

setStereo()

void libsidplayfp::Mixer::setStereo

(

bool

stereo

)

Set mixing mode.

Parameters

stereo

true for stereo mode, false for mono

setVolume()

void libsidplayfp::Mixer::setVolume	(	int_least32_t	left,
		int_least32_t	right
	)

Set mixing volumes, from 0 to VOLUME_MAX.

Parameters

left	volume for left or mono channel
right	volume for right channel in stereo mode

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The documentation for this class was generated from the following files:

• mixer.h
• mixer.cpp