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/*************************************************************************** |
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* * |
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* Copyright (C) 2005 - 2013 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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|
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#include "EngineChannelFactory.h" |
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|
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#include <strings.h> |
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|
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#include "gig/EngineChannel.h" |
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|
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#if HAVE_SF2 |
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#include "sf2/EngineChannel.h" |
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#endif |
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|
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#include "sfz/EngineChannel.h" |
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|
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namespace LinuxSampler { |
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class LockedChannel { |
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public: |
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const EngineChannel* pChannel; |
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bool bDestroyed; |
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|
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LockedChannel(const EngineChannel* pChannel) { |
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this->pChannel = pChannel; |
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bDestroyed = false; |
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} |
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}; |
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|
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class LockedChannelList { |
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public: |
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void Add(const EngineChannel* pChannel) { |
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vChannelList.push_back(LockedChannel(pChannel)); |
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} |
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|
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bool IsDestroyed(const EngineChannel* pChannel) { |
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LockedChannel* pLockedChannel = get(pChannel); |
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if (pLockedChannel == NULL) return false; |
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return pLockedChannel->bDestroyed; |
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} |
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|
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void SetDestroyed(const EngineChannel* pChannel, bool bDestroyed = true) { |
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LockedChannel* pLockedChannel = get(pChannel); |
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if (pLockedChannel == NULL) return; |
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pLockedChannel->bDestroyed = bDestroyed; |
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} |
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|
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void Remove(const EngineChannel* pChannel) { |
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std::vector<LockedChannel>::iterator it = vChannelList.begin(); |
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for (; it != vChannelList.end(); it++) { |
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if ((*it).pChannel == pChannel) { |
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vChannelList.erase(it); |
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return; |
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} |
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} |
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} |
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|
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bool Contains(const EngineChannel* pChannel) { |
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return get(pChannel) != NULL; |
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} |
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|
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private: |
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std::vector<LockedChannel> vChannelList; |
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|
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LockedChannel* get(const EngineChannel* pChannel) { |
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for (int i = 0; i < vChannelList.size(); i++) { |
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if (vChannelList[i].pChannel == pChannel) { |
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return &vChannelList[i]; |
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} |
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} |
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|
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return NULL; |
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} |
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} lockedChannels; |
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|
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Mutex EngineChannelFactory::LockedChannelsMutex; |
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Mutex EngineChannelFactory::EngineChannelsMutex; |
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|
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void EngineChannelFactory::SetDeleteEnabled(const EngineChannel* pEngineChannel, bool enable) { |
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if (!enable) { |
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LockGuard lock(LockedChannelsMutex); |
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if (!lockedChannels.Contains(pEngineChannel)) lockedChannels.Add(pEngineChannel); |
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} else { |
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bool b; |
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{ |
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LockGuard lock(LockedChannelsMutex); |
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b = lockedChannels.IsDestroyed(pEngineChannel); |
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lockedChannels.Remove(pEngineChannel); |
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} |
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if (b) delete pEngineChannel; |
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} |
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} |
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|
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// all currently existing engine channel instances |
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static std::set<LinuxSampler::EngineChannel*> engineChannels; |
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|
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LinuxSampler::EngineChannel* EngineChannelFactory::Create(String EngineType) throw (Exception) { |
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LinuxSampler::EngineChannel* pEngineChannel; |
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if (!strcasecmp(EngineType.c_str(),"GigEngine") || !strcasecmp(EngineType.c_str(),"gig")) { |
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pEngineChannel = new gig::EngineChannel; |
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} else if (!strcasecmp(EngineType.c_str(),"sf2")) { |
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#if HAVE_SF2 |
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pEngineChannel = new sf2::EngineChannel; |
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#else |
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throw Exception("LinuxSampler is not compiled with SF2 support"); |
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#endif |
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} else if (!strcasecmp(EngineType.c_str(),"sfz")) { |
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pEngineChannel = new sfz::EngineChannel; |
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} else { |
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throw Exception("Unknown engine type"); |
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} |
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LockGuard lock(EngineChannelsMutex); |
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engineChannels.insert(pEngineChannel); |
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return pEngineChannel; |
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} |
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|
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void EngineChannelFactory::Destroy(LinuxSampler::EngineChannel* pEngineChannel) { |
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pEngineChannel->RemoveAllFxSendCountListeners(); |
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{ |
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LockGuard lock(EngineChannelsMutex); |
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engineChannels.erase(pEngineChannel); |
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} |
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|
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// Postpone the deletion of the specified EngineChannel if needed (bug #113) |
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{ |
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LockGuard lock(LockedChannelsMutex); |
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if (lockedChannels.Contains(pEngineChannel)) { |
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lockedChannels.SetDestroyed(pEngineChannel); |
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pEngineChannel->SetSamplerChannel(NULL); |
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return; |
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} |
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} |
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/////// |
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|
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delete pEngineChannel; |
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} |
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|
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const std::set<LinuxSampler::EngineChannel*>& EngineChannelFactory::EngineChannelInstances() { |
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return engineChannels; |
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} |
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|
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} // namespace LinuxSampler |
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