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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* 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 * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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#include <sstream> |
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#include "Sampler.h" |
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#include "engines/EngineChannelFactory.h" |
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#include "drivers/audio/AudioOutputDeviceFactory.h" |
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#include "drivers/midi/MidiInputDeviceFactory.h" |
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#include "network/lscpserver.h" |
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namespace LinuxSampler { |
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// ****************************************************************** |
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// * SamplerChannel |
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SamplerChannel::SamplerChannel(Sampler* pS) { |
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pSampler = pS; |
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pEngineChannel = NULL; |
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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; |
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} |
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SamplerChannel::~SamplerChannel() { |
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if (pEngineChannel) { |
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MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel()); |
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if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel); |
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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::SetEngineType(String EngineType) throw (LinuxSamplerException) { |
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dmsg(2,("SamplerChannel: Assigning engine type...")); |
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|
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// create new engine channel |
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EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType); |
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if (!pNewEngineChannel) throw LinuxSamplerException("Unknown engine type"); |
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//FIXME: hack to allow fast retrieval of engine channel's sampler channel index |
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pNewEngineChannel->iSamplerChannelIndex = Index(); |
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// 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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pEngineChannel->StatusChanged(true); |
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dmsg(2,("OK\n")); |
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} |
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void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) { |
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// disconnect old device |
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if (pAudioOutputDevice && pEngineChannel) pEngineChannel->DisconnectAudioOutputDevice(); |
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// connect new device |
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pAudioOutputDevice = pDevice; |
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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) { |
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SetMidiInput(pDevice, 0, GetMidiInputChannel()); |
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} |
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void SamplerChannel::SetMidiInputPort(int MidiPort) { |
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SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel()); |
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} |
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void SamplerChannel::SetMidiInputChannel(midi_chan_t MidiChannel) { |
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SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel); |
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} |
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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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EngineChannel* SamplerChannel::GetEngineChannel() { |
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return pEngineChannel; |
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} |
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midi_chan_t SamplerChannel::GetMidiInputChannel() { |
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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() { |
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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() { |
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if (iIndex >= 0) return iIndex; |
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Sampler::SamplerChannelMap::iterator iter = pSampler->mSamplerChannels.begin(); |
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for (; iter != pSampler->mSamplerChannels.end(); iter++) { |
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if (iter->second == this) { |
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iIndex = iter->first; |
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return iIndex; |
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} |
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} |
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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 |
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Sampler::Sampler() { |
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} |
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Sampler::~Sampler() { |
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Reset(); |
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} |
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uint Sampler::SamplerChannels() { |
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return mSamplerChannels.size(); |
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} |
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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); |
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mSamplerChannels[lastIndex + 1] = pChannel; |
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LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, lastIndex + 1)); |
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return pChannel; |
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} |
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SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) { |
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return (mSamplerChannels.find(uiSamplerChannel) != mSamplerChannels.end()) ? mSamplerChannels[uiSamplerChannel] : NULL; |
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} |
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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) { |
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SamplerChannelMap::iterator iterChan = mSamplerChannels.begin(); |
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for (; iterChan != mSamplerChannels.end(); iterChan++) { |
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if (iterChan->second == pSamplerChannel) { |
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mSamplerChannels.erase(iterChan); |
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delete pSamplerChannel; |
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LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, mSamplerChannels.size())); |
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return; |
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} |
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} |
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} |
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void Sampler::RemoveSamplerChannel(uint uiSamplerChannel) { |
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SamplerChannel* pChannel = GetSamplerChannel(uiSamplerChannel); |
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if (!pChannel) return; |
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RemoveSamplerChannel(pChannel); |
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} |
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std::vector<String> Sampler::AvailableAudioOutputDrivers() { |
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return AudioOutputDeviceFactory::AvailableDrivers(); |
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} |
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AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) { |
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// create new device |
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AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters); |
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// 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 |
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if (!mAudioOutputDevices[i]) { |
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mAudioOutputDevices[i] = pDevice; |
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break; |
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} |
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} |
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return pDevice; |
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} |
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uint Sampler::AudioOutputDevices() { |
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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() { |
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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) { |
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AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin(); |
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for (; iter != mAudioOutputDevices.end(); iter++) { |
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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)->GetAudioOutputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the audio output device."); |
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// disable device |
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pDevice->Stop(); |
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// remove device from the device list |
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mAudioOutputDevices.erase(iter); |
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// 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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void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (LinuxSamplerException) { |
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MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin(); |
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for (; iter != mMidiInputDevices.end(); iter++) { |
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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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// disable device |
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pDevice->StopListen(); |
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// remove device from the device list |
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mMidiInputDevices.erase(iter); |
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// 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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MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) { |
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// create new device |
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MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this); |
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// 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 |
344 |
|
|
if (!mMidiInputDevices[i]) { |
345 |
|
|
mMidiInputDevices[i] = pDevice; |
346 |
|
|
break; |
347 |
|
|
} |
348 |
|
|
} |
349 |
schoenebeck |
64 |
|
350 |
schoenebeck |
53 |
return pDevice; |
351 |
|
|
} |
352 |
|
|
|
353 |
schoenebeck |
212 |
void Sampler::Reset() { |
354 |
|
|
// delete sampler channels |
355 |
|
|
try { |
356 |
senkov |
329 |
while (true) { |
357 |
|
|
SamplerChannelMap::iterator iter = mSamplerChannels.begin(); |
358 |
|
|
if (iter == mSamplerChannels.end()) break; |
359 |
|
|
RemoveSamplerChannel(iter->second); |
360 |
schoenebeck |
212 |
} |
361 |
|
|
} |
362 |
|
|
catch(...) { |
363 |
|
|
std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush; |
364 |
|
|
exit(EXIT_FAILURE); |
365 |
|
|
} |
366 |
|
|
|
367 |
|
|
// delete midi input devices |
368 |
|
|
try { |
369 |
senkov |
329 |
while (true) { |
370 |
|
|
MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin(); |
371 |
|
|
if (iter == mMidiInputDevices.end()) break; |
372 |
|
|
DestroyMidiInputDevice(iter->second); |
373 |
schoenebeck |
212 |
} |
374 |
|
|
} |
375 |
|
|
catch(...) { |
376 |
|
|
std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush; |
377 |
|
|
exit(EXIT_FAILURE); |
378 |
|
|
} |
379 |
|
|
|
380 |
|
|
// delete audio output devices |
381 |
|
|
try { |
382 |
senkov |
329 |
while (true) { |
383 |
|
|
AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin(); |
384 |
|
|
if (iter == mAudioOutputDevices.end()) break; |
385 |
|
|
DestroyAudioOutputDevice(iter->second); |
386 |
schoenebeck |
212 |
} |
387 |
|
|
} |
388 |
|
|
catch(...) { |
389 |
|
|
std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush; |
390 |
|
|
exit(EXIT_FAILURE); |
391 |
|
|
} |
392 |
|
|
} |
393 |
|
|
|
394 |
schoenebeck |
53 |
} // namespace LinuxSampler |