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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 "audiodriver/AudioOutputDeviceFactory.h" |
#include "engines/EngineChannelFactory.h" |
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#include "mididriver/MidiInputDeviceAlsa.h" |
#include "drivers/audio/AudioOutputDeviceFactory.h" |
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#include "engines/gig/Engine.h" |
#include "drivers/midi/MidiInputDeviceFactory.h" |
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#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; |
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pAudioOutputDevice = NULL; |
pAudioOutputDevice = NULL; |
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pMidiInputDevice = NULL; |
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iMidiPort = 0; |
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midiChannel = 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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if (pMidiInputDevice) pMidiInputDevice->Disconnect(pEngine); |
MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel()); |
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if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine); |
if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel); |
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delete pEngine; |
if (pEngineChannel) { |
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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"); |
// dereference midi input port. |
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} |
MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort()); |
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// disconnect old engine channel |
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if (pEngineChannel) { |
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if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel); |
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if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice(); |
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EngineChannelFactory::Destroy(pEngineChannel); |
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} |
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// connect new engine channel |
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if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel()); |
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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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pEngineChannel = pNewEngineChannel; |
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// from now on get MIDI device and port from EngineChannel object |
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this->pMidiInputDevice = NULL; |
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this->iMidiPort = 0; |
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// disconnect old engine |
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if (pEngine) { |
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if (pMidiInputDevice) pMidiInputDevice->Disconnect(pEngine); |
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if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine); |
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delete pEngine; |
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} |
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// connect new engine |
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pEngine = pNewEngine; |
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if (pMidiInputDevice) pMidiInputDevice->Connect(pNewEngine, (MidiInputDevice::midi_chan_t) Index()); |
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if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngine); |
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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::type_t MidiType, MidiInputDevice::midi_chan_t MidiChannel) { |
void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) { |
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// get / create desired midi device |
SetMidiInput(pDevice, 0, GetMidiInputChannel()); |
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MidiInputDevice* pDevice = pSampler->GetMidiInputDevice(MidiType); |
} |
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if (!pDevice) pDevice = pSampler->CreateMidiInputDevice(MidiType); |
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// disconnect old device |
void SamplerChannel::SetMidiInputPort(int MidiPort) { |
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if (pMidiInputDevice && pEngine) pMidiInputDevice->Disconnect(pEngine); |
SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel()); |
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} |
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// connect new device |
void SamplerChannel::SetMidiInputChannel(midi_chan_t MidiChannel) { |
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pMidiInputDevice = pDevice; |
SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel); |
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if (pEngine) pMidiInputDevice->Connect(pEngine, MidiChannel); |
} |
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void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) { |
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if (!pDevice) throw LinuxSamplerException("No MIDI input device assigned."); |
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// get old and new midi input port |
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MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort()); |
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MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort); |
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// disconnect old device port |
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if (pOldMidiInputPort && pEngineChannel) pOldMidiInputPort->Disconnect(pEngineChannel); |
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// remember new device, port and channel if not engine channel yet created |
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if (!pEngineChannel) { |
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this->pMidiInputDevice = pDevice; |
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this->iMidiPort = iMidiPort; |
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this->midiChannel = MidiChannel; |
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} |
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// connect new device port |
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if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel); |
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// Ooops. |
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if (pNewMidiInputPort == NULL) |
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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* SamplerChannel::GetMidiInputDevice() { |
midi_chan_t SamplerChannel::GetMidiInputChannel() { |
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return pMidiInputDevice; |
if (pEngineChannel) this->midiChannel = pEngineChannel->MidiChannel(); |
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return this->midiChannel; |
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} |
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int SamplerChannel::GetMidiInputPort() { |
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MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : NULL; |
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if (pMidiInputPort) this->iMidiPort = (int) pMidiInputPort->GetPortNumber(); |
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return iMidiPort; |
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} |
} |
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AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() { |
AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() { |
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return pAudioOutputDevice; |
return pAudioOutputDevice; |
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} |
} |
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MidiInputDevice* SamplerChannel::GetMidiInputDevice() { |
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if (pEngineChannel) |
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pMidiInputDevice = (pEngineChannel->GetMidiInputPort()) ? pEngineChannel->GetMidiInputPort()->GetDevice() : NULL; |
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return pMidiInputDevice; |
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} |
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uint SamplerChannel::Index() { |
uint SamplerChannel::Index() { |
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if (iIndex >= 0) return iIndex; |
if (iIndex >= 0) return iIndex; |
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std::vector<SamplerChannel*>::iterator iter = pSampler->vSamplerChannels.begin(); |
Sampler::SamplerChannelMap::iterator iter = pSampler->mSamplerChannels.begin(); |
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for (int i = 0; iter != pSampler->vSamplerChannels.end(); i++, iter++) { |
for (; iter != pSampler->mSamplerChannels.end(); iter++) { |
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if (*iter == this) { |
if (iter->second == this) { |
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iIndex = i; |
iIndex = iter->first; |
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return i; |
return iIndex; |
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} |
} |
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} |
} |
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throw LinuxSamplerException("SamplerChannel index not found"); |
throw LinuxSamplerException("Internal error: SamplerChannel index not found"); |
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} |
} |
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MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) { |
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MidiInputPort* pMidiInputPort = NULL; |
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MidiInputDevice* pMidiInputDevice = GetMidiInputDevice(); |
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if (pMidiInputDevice) |
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pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort); |
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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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std::vector<SamplerChannel*>::iterator iter = vSamplerChannels.begin(); |
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for (; iter != vSamplerChannels.end(); iter++) delete *iter; |
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} |
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// delete midi input devices |
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{ |
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MidiInputDeviceMap::iterator iter = MidiInputDevices.begin(); |
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for (; iter != MidiInputDevices.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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return vSamplerChannels.size(); |
return mSamplerChannels.size(); |
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} |
} |
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SamplerChannel* Sampler::AddSamplerChannel() { |
SamplerChannel* Sampler::AddSamplerChannel() { |
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// if there's no sampler channel yet |
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if (!mSamplerChannels.size()) { |
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SamplerChannel* pChannel = new SamplerChannel(this); |
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mSamplerChannels[0] = pChannel; |
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LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, 1)); |
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return pChannel; |
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} |
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// get the highest used sampler channel index |
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uint lastIndex = (--(mSamplerChannels.end()))->first; |
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// check if we reached the index limit |
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if (lastIndex + 1 < lastIndex) { |
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// search for an unoccupied sampler channel index starting from 0 |
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for (uint i = 0; i < lastIndex; i++) { |
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if (mSamplerChannels.find(i) != mSamplerChannels.end()) continue; |
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// we found an unused index, so insert the new channel there |
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SamplerChannel* pChannel = new SamplerChannel(this); |
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mSamplerChannels[i] = pChannel; |
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LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, i)); |
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return pChannel; |
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} |
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throw LinuxSamplerException("Internal error: could not find unoccupied sampler channel index."); |
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} |
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// 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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vSamplerChannels.push_back(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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SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) { |
SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) { |
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if (uiSamplerChannel >= SamplerChannels()) return NULL; |
return (mSamplerChannels.find(uiSamplerChannel) != mSamplerChannels.end()) ? mSamplerChannels[uiSamplerChannel] : NULL; |
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return vSamplerChannels[uiSamplerChannel]; |
} |
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std::map<uint, SamplerChannel*> Sampler::GetSamplerChannels() { |
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return mSamplerChannels; |
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} |
} |
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void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) { |
void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) { |
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std::vector<SamplerChannel*>::iterator iterChan = vSamplerChannels.begin(); |
SamplerChannelMap::iterator iterChan = mSamplerChannels.begin(); |
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for (; iterChan != vSamplerChannels.end(); iterChan++) { |
for (; iterChan != mSamplerChannels.end(); iterChan++) { |
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if (*iterChan == pSamplerChannel) { |
if (iterChan->second == pSamplerChannel) { |
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vSamplerChannels.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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// create new device |
// create new device |
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AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters); |
AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters); |
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// activate device |
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pDevice->Play(); |
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// add new audio device to the audio device list |
// add new audio device to the audio 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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if (!mAudioOutputDevices[i]) { |
if (!mAudioOutputDevices[i]) { |
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return mAudioOutputDevices.size(); |
return mAudioOutputDevices.size(); |
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} |
} |
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uint Sampler::MidiInputDevices() { |
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return mMidiInputDevices.size(); |
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} |
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std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() { |
std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() { |
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return mAudioOutputDevices; |
return mAudioOutputDevices; |
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} |
} |
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std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() { |
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return mMidiInputDevices; |
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} |
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void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (LinuxSamplerException) { |
void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (LinuxSamplerException) { |
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AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin(); |
AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin(); |
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for (; iter != mAudioOutputDevices.end(); iter++) { |
for (; iter != mAudioOutputDevices.end(); iter++) { |
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} |
} |
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} |
} |
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MidiInputDevice* Sampler::CreateMidiInputDevice(MidiInputDevice::type_t MidiType) { |
void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (LinuxSamplerException) { |
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// check if device already created |
MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin(); |
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MidiInputDevice* pDevice = GetMidiInputDevice(MidiType); |
for (; iter != mMidiInputDevices.end(); iter++) { |
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if (pDevice) return pDevice; |
if (iter->second == pDevice) { |
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// check if there are still sampler engines connected to this device |
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for (uint i = 0; i < SamplerChannels(); i++) |
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if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the midi input device."); |
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// create new device |
// disable device |
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switch (MidiType) { |
pDevice->StopListen(); |
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case MidiInputDevice::type_alsa: |
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pDevice = new MidiInputDeviceAlsa; |
// remove device from the device list |
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break; |
mMidiInputDevices.erase(iter); |
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default: |
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throw LinuxSamplerException("Unknown audio output device type"); |
// destroy and free device from memory |
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delete pDevice; |
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} |
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} |
} |
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} |
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// activate device |
MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) { |
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pDevice->Listen(); |
// create new device |
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MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this); |
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// add new MIDI device to the MIDI device list |
// add new device to the midi device list |
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MidiInputDevices[MidiType] = pDevice; |
for (uint i = 0; ; i++) { // seek for a free place starting from the beginning |
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if (!mMidiInputDevices[i]) { |
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mMidiInputDevices[i] = pDevice; |
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break; |
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} |
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} |
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return pDevice; |
return pDevice; |
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} |
} |
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MidiInputDevice* Sampler::GetMidiInputDevice(MidiInputDevice::type_t MidiType) { |
void Sampler::Reset() { |
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MidiInputDeviceMap::iterator iter = MidiInputDevices.find(MidiType); |
// delete sampler channels |
353 |
return (iter != MidiInputDevices.end()) ? iter->second : NULL; |
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 |
366 |
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try { |
367 |
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while (true) { |
368 |
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MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin(); |
369 |
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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 |
379 |
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try { |
380 |
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while (true) { |
381 |
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AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin(); |
382 |
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if (iter == mAudioOutputDevices.end()) break; |
383 |
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DestroyAudioOutputDevice(iter->second); |
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|
} |
385 |
|
} |
386 |
|
catch(...) { |
387 |
|
std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush; |
388 |
|
exit(EXIT_FAILURE); |
389 |
|
} |
390 |
} |
} |
391 |
|
|
392 |
} // namespace LinuxSampler |
} // namespace LinuxSampler |