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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
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* * |
* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 Christian Schoenebeck * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
* it under the terms of the GNU General Public License as published by * |
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#include "Sampler.h" |
#include "Sampler.h" |
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#include "engines/EngineChannelFactory.h" |
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#include "drivers/audio/AudioOutputDeviceFactory.h" |
#include "drivers/audio/AudioOutputDeviceFactory.h" |
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#include "drivers/midi/MidiInputDeviceFactory.h" |
#include "drivers/midi/MidiInputDeviceFactory.h" |
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#include "engines/gig/Engine.h" |
#include "network/lscpserver.h" |
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namespace LinuxSampler { |
namespace LinuxSampler { |
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SamplerChannel::SamplerChannel(Sampler* pS) { |
SamplerChannel::SamplerChannel(Sampler* pS) { |
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pSampler = pS; |
pSampler = pS; |
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pEngine = NULL; |
pEngineChannel = NULL; |
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pMidiInputDevice = NULL; |
pMidiInputDevice = NULL; |
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pAudioOutputDevice = NULL; |
pAudioOutputDevice = NULL; |
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midiPort = 0; |
midiPort = 0; |
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midiChannel = MidiInputDevice::MidiInputPort::midi_chan_all; |
midiChannel = MidiInputPort::midi_chan_all; |
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iIndex = -1; |
iIndex = -1; |
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} |
} |
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SamplerChannel::~SamplerChannel() { |
SamplerChannel::~SamplerChannel() { |
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if (pEngine) { |
if (pEngineChannel) { |
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MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort); |
MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort); |
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if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine); |
if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel); |
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if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine); |
if (pEngineChannel) { |
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delete pEngine; |
if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice(); |
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EngineChannelFactory::Destroy(pEngineChannel); |
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} |
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} |
} |
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} |
} |
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void SamplerChannel::LoadEngine(Engine::type_t EngineType) { |
void SamplerChannel::SetEngineType(String EngineType) throw (LinuxSamplerException) { |
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dmsg(2,("SamplerChannel: Loading engine...")); |
dmsg(2,("SamplerChannel: Assigning engine type...")); |
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// create new engine |
// create new engine channel |
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Engine* pNewEngine = NULL; |
EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType); |
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switch (EngineType) { |
if (!pNewEngineChannel) throw LinuxSamplerException("Unknown engine type"); |
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case Engine::type_gig: |
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pNewEngine = new gig::Engine; |
//FIXME: hack to allow fast retrieval of engine channel's sampler channel index |
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break; |
pNewEngineChannel->iSamplerChannelIndex = Index(); |
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default: |
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throw LinuxSamplerException("Unknown engine type"); |
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} |
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// dereference midi input port. |
// dereference midi input port. |
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MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort); |
MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort); |
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// disconnect old engine |
// disconnect old engine |
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if (pEngine) { |
if (pEngineChannel) { |
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if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine); |
if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel); |
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if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine); |
if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice(); |
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delete pEngine; |
EngineChannelFactory::Destroy(pEngineChannel); |
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} |
} |
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// connect new engine |
// connect new engine channel |
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pEngine = pNewEngine; |
pEngineChannel = pNewEngineChannel; |
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if (pMidiInputPort) pMidiInputPort->Connect(pNewEngine, this->midiChannel); |
if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, this->midiChannel); |
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if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngine); |
if (pAudioOutputDevice) { |
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pNewEngineChannel->Connect(pAudioOutputDevice); |
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pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine()); |
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} |
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dmsg(2,("OK\n")); |
dmsg(2,("OK\n")); |
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} |
} |
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void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) { |
void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) { |
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// disconnect old device |
// disconnect old device |
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if (pAudioOutputDevice && pEngine) pAudioOutputDevice->Disconnect(pEngine); |
if (pAudioOutputDevice && pEngineChannel) pEngineChannel->DisconnectAudioOutputDevice(); |
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// connect new device |
// connect new device |
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pAudioOutputDevice = pDevice; |
pAudioOutputDevice = pDevice; |
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if (pEngine) pAudioOutputDevice->Connect(pEngine); |
if (pEngineChannel) { |
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pEngineChannel->Connect(pAudioOutputDevice); |
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pAudioOutputDevice->Connect(pEngineChannel->GetEngine()); |
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} |
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} |
} |
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void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) { |
void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) { |
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SetMidiInput(pMidiInputDevice, MidiPort, this->midiChannel); |
SetMidiInput(pMidiInputDevice, MidiPort, this->midiChannel); |
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} |
} |
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void SamplerChannel::SetMidiInputChannel(MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) { |
void SamplerChannel::SetMidiInputChannel(MidiInputPort::midi_chan_t MidiChannel) { |
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SetMidiInput(pMidiInputDevice, this->midiPort, MidiChannel); |
SetMidiInput(pMidiInputDevice, this->midiPort, MidiChannel); |
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} |
} |
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void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int MidiPort, MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) { |
void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, MidiInputPort::midi_chan_t MidiChannel) { |
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// dereference old midi input port. |
// dereference old midi input port. |
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MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort); |
MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort); |
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// disconnect old device port |
// disconnect old device port |
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if (pMidiInputPort && pEngine) pMidiInputPort->Disconnect(pEngine); |
if (pMidiInputPort && pEngineChannel) pMidiInputPort->Disconnect(pEngineChannel); |
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// new device, port and channel |
// new device, port and channel |
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pMidiInputDevice = pDevice; |
pMidiInputDevice = pDevice; |
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this->midiPort = MidiPort; |
this->midiPort = iMidiPort; |
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this->midiChannel = MidiChannel; |
this->midiChannel = MidiChannel; |
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// connect new device port |
// connect new device port |
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pMidiInputPort = GetMidiInputDevicePort(this->midiPort); |
pMidiInputPort = GetMidiInputDevicePort(this->midiPort); |
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if (pMidiInputPort && pEngine) pMidiInputPort->Connect(pEngine, MidiChannel); |
if (pMidiInputPort && pEngineChannel) pMidiInputPort->Connect(pEngineChannel, MidiChannel); |
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// Ooops. |
// Ooops. |
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if (pMidiInputPort == NULL) |
if (pMidiInputPort == NULL) |
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throw LinuxSamplerException("There is no MIDI input port with index " + ToString(MidiPort) + "."); |
throw LinuxSamplerException("There is no MIDI input port with index " + ToString(iMidiPort) + "."); |
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} |
} |
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Engine* SamplerChannel::GetEngine() { |
EngineChannel* SamplerChannel::GetEngineChannel() { |
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return pEngine; |
return pEngineChannel; |
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} |
} |
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MidiInputDevice::MidiInputPort::midi_chan_t SamplerChannel::GetMidiInputChannel() { |
MidiInputPort::midi_chan_t SamplerChannel::GetMidiInputChannel() { |
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return this->midiChannel; |
return this->midiChannel; |
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} |
} |
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int SamplerChannel::GetMidiInputPort() { |
int SamplerChannel::GetMidiInputPort() { |
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MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort); |
MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort); |
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return (pMidiInputPort ? (int) pMidiInputPort->GetPortNumber() : -1); |
return (pMidiInputPort ? (int) pMidiInputPort->GetPortNumber() : -1); |
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} |
} |
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throw LinuxSamplerException("Internal error: SamplerChannel index not found"); |
throw LinuxSamplerException("Internal error: SamplerChannel index not found"); |
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} |
} |
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MidiInputDevice::MidiInputPort* SamplerChannel::GetMidiInputDevicePort(int MidiPort) { |
MidiInputPort* SamplerChannel::GetMidiInputDevicePort(int iMidiPort) { |
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MidiInputDevice::MidiInputPort *pMidiInputPort = NULL; |
MidiInputPort* pMidiInputPort = NULL; |
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if (pMidiInputDevice) |
if (pMidiInputDevice) |
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pMidiInputPort = pMidiInputDevice->GetPort(MidiPort); |
pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort); |
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return pMidiInputPort; |
return pMidiInputPort; |
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} |
} |
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// ****************************************************************** |
// ****************************************************************** |
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// * Sampler |
// * Sampler |
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} |
} |
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Sampler::~Sampler() { |
Sampler::~Sampler() { |
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// delete sampler channels |
Reset(); |
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{ |
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SamplerChannelMap::iterator iter = mSamplerChannels.begin(); |
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for (; iter != mSamplerChannels.end(); iter++) delete iter->second; |
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} |
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// delete midi input devices |
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{ |
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MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin(); |
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for (; iter != mMidiInputDevices.end(); iter++) { |
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MidiInputDevice* pDevice = iter->second; |
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pDevice->StopListen(); |
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delete pDevice; |
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} |
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} |
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// delete audio output devices |
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{ |
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AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin(); |
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for (; iter != mAudioOutputDevices.end(); iter++) { |
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AudioOutputDevice* pDevice = iter->second; |
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pDevice->Stop(); |
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delete pDevice; |
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} |
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} |
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} |
} |
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uint Sampler::SamplerChannels() { |
uint Sampler::SamplerChannels() { |
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if (!mSamplerChannels.size()) { |
if (!mSamplerChannels.size()) { |
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SamplerChannel* pChannel = new SamplerChannel(this); |
SamplerChannel* pChannel = new SamplerChannel(this); |
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mSamplerChannels[0] = pChannel; |
mSamplerChannels[0] = pChannel; |
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LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, 1)); |
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return pChannel; |
return pChannel; |
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} |
} |
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// we found an unused index, so insert the new channel there |
// we found an unused index, so insert the new channel there |
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SamplerChannel* pChannel = new SamplerChannel(this); |
SamplerChannel* pChannel = new SamplerChannel(this); |
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mSamplerChannels[i] = pChannel; |
mSamplerChannels[i] = pChannel; |
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LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, i)); |
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return pChannel; |
return pChannel; |
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} |
} |
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throw LinuxSamplerException("Internal error: could not find unoccupied sampler channel index."); |
throw LinuxSamplerException("Internal error: could not find unoccupied sampler channel index."); |
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// we have not reached the index limit so we just add the channel past the highest index |
// we have not reached the index limit so we just add the channel past the highest index |
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SamplerChannel* pChannel = new SamplerChannel(this); |
SamplerChannel* pChannel = new SamplerChannel(this); |
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mSamplerChannels[lastIndex + 1] = pChannel; |
mSamplerChannels[lastIndex + 1] = pChannel; |
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LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, lastIndex + 1)); |
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return pChannel; |
return pChannel; |
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} |
} |
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if (iterChan->second == pSamplerChannel) { |
if (iterChan->second == pSamplerChannel) { |
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mSamplerChannels.erase(iterChan); |
mSamplerChannels.erase(iterChan); |
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delete pSamplerChannel; |
delete pSamplerChannel; |
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LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, mSamplerChannels.size())); |
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return; |
return; |
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} |
} |
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} |
} |
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MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) { |
MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) { |
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// create new device |
// create new device |
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MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters); |
MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this); |
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// add new device to the midi device list |
// add new device to the midi device list |
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for (uint i = 0; ; i++) { // seek for a free place starting from the beginning |
for (uint i = 0; ; i++) { // seek for a free place starting from the beginning |
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return pDevice; |
return pDevice; |
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} |
} |
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void Sampler::Reset() { |
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// delete sampler channels |
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try { |
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while (true) { |
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SamplerChannelMap::iterator iter = mSamplerChannels.begin(); |
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if (iter == mSamplerChannels.end()) break; |
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RemoveSamplerChannel(iter->second); |
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} |
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} |
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catch(...) { |
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std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush; |
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exit(EXIT_FAILURE); |
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} |
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// delete midi input devices |
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try { |
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while (true) { |
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MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin(); |
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if (iter == mMidiInputDevices.end()) break; |
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DestroyMidiInputDevice(iter->second); |
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} |
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} |
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catch(...) { |
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std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush; |
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exit(EXIT_FAILURE); |
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} |
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// delete audio output devices |
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try { |
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while (true) { |
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AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin(); |
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if (iter == mAudioOutputDevices.end()) break; |
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DestroyAudioOutputDevice(iter->second); |
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} |
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} |
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catch(...) { |
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std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush; |
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exit(EXIT_FAILURE); |
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} |
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} |
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} // namespace LinuxSampler |
} // namespace LinuxSampler |