openMSX
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#include <ResampledSoundDevice.hh>
Public Types | |
enum | ResampleType { RESAMPLE_HQ , RESAMPLE_LQ , RESAMPLE_BLIP } |
Public Member Functions | |
bool | generateInput (float *buffer, size_t num) |
Note: To enable various optimizations (like SSE), this method is allowed to generate up to 3 extra sample. More... | |
DynamicClock & | getEmuClock () |
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SoundDevice (const SoundDevice &)=delete | |
SoundDevice & | operator= (const SoundDevice &)=delete |
const std::string & | getName () const |
Get the unique name that identifies this sound device. More... | |
std::string_view | getDescription () const |
Gets a description of this sound device, to be presented to the user. More... | |
bool | isStereo () const |
Is this a stereo device? This is set in the constructor and cannot be changed anymore. More... | |
AmplificationFactors | getAmplificationFactor () const |
void | setSoftwareVolume (float volume, EmuTime::param time) |
Change the 'software volume' of this sound device. More... | |
void | setSoftwareVolume (float left, float right, EmuTime::param time) |
void | recordChannel (unsigned channel, const Filename &filename) |
void | muteChannel (unsigned channel, bool muted) |
virtual void | setOutputRate (unsigned hostSampleRate, double speed)=0 |
When a SoundDevice registers itself with the Mixer, the Mixer sets the required sampleRate through this method. More... | |
virtual bool | updateBuffer (size_t length, float *buffer, EmuTime::param time)=0 |
Generate sample data. More... | |
Protected Member Functions | |
ResampledSoundDevice (MSXMotherBoard &motherBoard, std::string_view name, static_string_view description, unsigned channels, unsigned inputSampleRate, bool stereo) | |
~ResampledSoundDevice () | |
void | setOutputRate (unsigned hostSampleRate, double speed) override |
When a SoundDevice registers itself with the Mixer, the Mixer sets the required sampleRate through this method. More... | |
bool | updateBuffer (size_t length, float *buffer, EmuTime::param time) override |
Generate sample data. More... | |
void | update (const Setting &setting) noexcept override |
void | createResampler () |
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SoundDevice (MSXMixer &mixer, std::string_view name, static_string_view description, unsigned numChannels, unsigned inputRate, bool stereo) | |
Constructor. More... | |
~SoundDevice () | |
virtual float | getAmplificationFactorImpl () const |
Get amplification/attenuation factor for this device. More... | |
void | registerSound (const DeviceConfig &config) |
Registers this sound device with the Mixer. More... | |
void | unregisterSound () |
Unregisters this sound device with the Mixer. More... | |
void | updateStream (EmuTime::param time) |
void | setInputRate (unsigned sampleRate) |
unsigned | getInputRate () const |
virtual void | generateChannels (std::span< float * > buffers, unsigned num)=0 |
Abstract method to generate the actual sound data. More... | |
bool | mixChannels (float *dataOut, size_t samples) |
Calls generateChannels() and combines the output to a single channel. More... | |
const DynamicClock & | getHostSampleClock () const |
See MSXMixer::getHostSampleClock(). More... | |
double | getEffectiveSpeed () const |
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Observer ()=default | |
~Observer ()=default | |
Observer (const Observer &)=delete | |
Observer & | operator= (const Observer &)=delete |
virtual void | update (const Setting &subject) noexcept=0 |
virtual void | subjectDeleted (const Setting &) |
Additional Inherited Members | |
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static constexpr unsigned | MAX_CHANNELS = 24 |
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static void | addFill (float *&buffer, float value, unsigned num) |
Adds a number of samples that all have the same value. More... | |
Definition at line 16 of file ResampledSoundDevice.hh.
Enumerator | |
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RESAMPLE_HQ | |
RESAMPLE_LQ | |
RESAMPLE_BLIP |
Definition at line 19 of file ResampledSoundDevice.hh.
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protected |
Definition at line 16 of file ResampledSoundDevice.cc.
References openmsx::Subject< T >::attach().
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protected |
Definition at line 28 of file ResampledSoundDevice.cc.
References openmsx::Subject< T >::detach().
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protected |
Definition at line 58 of file ResampledSoundDevice.cc.
References openmsx::ResampleLQ< CHANNELS >::create(), openmsx::SoundDevice::getEffectiveSpeed(), openmsx::EnumSetting< T >::getEnum(), openmsx::SoundDevice::getHostSampleClock(), openmsx::SoundDevice::getInputRate(), openmsx::DynamicClock::getPeriod(), openmsx::DynamicClock::getTime(), openmsx::SoundDevice::isStereo(), RESAMPLE_BLIP, RESAMPLE_HQ, RESAMPLE_LQ, openmsx::DynamicClock::reset(), openmsx::DynamicClock::setPeriod(), and UNREACHABLE.
Referenced by setOutputRate().
bool openmsx::ResampledSoundDevice::generateInput | ( | float * | buffer, |
size_t | num | ||
) |
Note: To enable various optimizations (like SSE), this method is allowed to generate up to 3 extra sample.
Definition at line 45 of file ResampledSoundDevice.cc.
References openmsx::SoundDevice::mixChannels().
Referenced by openmsx::ResampleTrivial::generateOutputImpl().
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inline |
Definition at line 27 of file ResampledSoundDevice.hh.
Referenced by openmsx::ResampleLQ< CHANNELS >::create(), openmsx::ResampleAlgo::getEmuClock(), and openmsx::YM2413::writePort().
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overrideprotectedvirtual |
When a SoundDevice registers itself with the Mixer, the Mixer sets the required sampleRate through this method.
All sound devices share a common sampleRate.
Implements openmsx::SoundDevice.
Definition at line 34 of file ResampledSoundDevice.cc.
References createResampler().
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overrideprotectedvirtualnoexcept |
Implements openmsx::Observer< Setting >.
Definition at line 51 of file ResampledSoundDevice.cc.
References setting.
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overrideprotectedvirtual |
Generate sample data.
length | The number of required samples |
buffer | This buffer should be filled |
time | current time |
This method is regularly called from the Mixer, it should return a pointer to a buffer filled with the required number of samples. Samples are always floats, later they are converted to the systems native format (e.g. 16-bit signed).
Note: To enable various optimizations (like SSE), this method can fill the output buffer with up to 3 extra samples. Those extra samples should be ignored, though the caller must make sure the buffer has enough space to hold them.
Implements openmsx::SoundDevice.
Definition at line 39 of file ResampledSoundDevice.cc.
References gl::length().