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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) 2005-2008 Christian Schoenebeck * |
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* Copyright (C) 2009-2012 Christian Schoenebeck and Grigor Iliev * |
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* Copyright (C) 2013-2014 Christian Schoenebeck and Andreas Persson * |
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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 "AbstractEngineChannel.h" |
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#include "../common/global_private.h" |
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#include "../Sampler.h" |
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namespace LinuxSampler { |
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AbstractEngineChannel::AbstractEngineChannel() : |
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virtualMidiDevicesReader_AudioThread(virtualMidiDevices), |
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virtualMidiDevicesReader_MidiThread(virtualMidiDevices) |
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{ |
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pEngine = NULL; |
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pEvents = NULL; // we allocate when we retrieve the right Engine object |
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pEventQueue = new RingBuffer<Event,false>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0); |
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InstrumentIdx = -1; |
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InstrumentStat = -1; |
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pChannelLeft = NULL; |
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pChannelRight = NULL; |
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AudioDeviceChannelLeft = -1; |
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AudioDeviceChannelRight = -1; |
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midiChannel = midi_chan_all; |
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ResetControllers(); |
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PortamentoMode = false; |
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PortamentoTime = CONFIG_PORTAMENTO_TIME_DEFAULT; |
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pScript = NULL; |
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} |
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AbstractEngineChannel::~AbstractEngineChannel() { |
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if (pScript) pScript->resetAll(); // unloads script (in case one is loaded) |
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delete pEventQueue; |
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DeleteGroupEventLists(); |
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RemoveAllFxSends(); |
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} |
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Engine* AbstractEngineChannel::GetEngine() { |
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return pEngine; |
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} |
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uint AbstractEngineChannel::Channels() { |
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return 2; |
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} |
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/** |
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* More or less a workaround to set the instrument name, index and load |
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* status variable to zero percent immediately, that is without blocking |
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* the calling thread. It might be used in future for other preparations |
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* as well though. |
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* |
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* @param FileName - file name of the instrument file |
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* @param Instrument - index of the instrument in the file |
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* @see LoadInstrument() |
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*/ |
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void AbstractEngineChannel::PrepareLoadInstrument(const char* FileName, uint Instrument) { |
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InstrumentFile = FileName; |
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InstrumentIdx = Instrument; |
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InstrumentStat = 0; |
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} |
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String AbstractEngineChannel::InstrumentFileName() { |
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return InstrumentFile; |
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} |
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String AbstractEngineChannel::InstrumentName() { |
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return InstrumentIdxName; |
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} |
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int AbstractEngineChannel::InstrumentIndex() { |
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return InstrumentIdx; |
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} |
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int AbstractEngineChannel::InstrumentStatus() { |
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return InstrumentStat; |
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} |
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String AbstractEngineChannel::EngineName() { |
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return AbstractEngine::GetFormatString(GetEngineFormat()); |
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} |
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void AbstractEngineChannel::Reset() { |
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if (pEngine) pEngine->DisableAndLock(); |
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ResetInternal(); |
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ResetControllers(); |
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if (pEngine) { |
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pEngine->Enable(); |
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pEngine->Reset(); |
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} |
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} |
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void AbstractEngineChannel::ResetControllers() { |
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Pitch = 0; |
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GlobalVolume = 1.0f; |
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MidiVolume = 1.0; |
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iLastPanRequest = 64; |
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GlobalTranspose = 0; |
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// set all MIDI controller values to zero |
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memset(ControllerTable, 0x00, 129); |
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// reset all FX Send levels |
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for ( |
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std::vector<FxSend*>::iterator iter = fxSends.begin(); |
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iter != fxSends.end(); iter++ |
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) { |
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(*iter)->Reset(); |
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} |
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} |
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/** |
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* This method is not thread safe! |
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*/ |
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void AbstractEngineChannel::ResetInternal() { |
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CurrentKeyDimension = 0; |
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PortamentoPos = -1.0f; // no portamento active yet |
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// delete all input events |
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pEventQueue->init(); |
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if (pEngine) pEngine->ResetInternal(); |
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// status of engine channel has changed, so set notify flag |
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bStatusChanged = true; |
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} |
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/** |
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* Implementation of virtual method from abstract EngineChannel interface. |
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* This method will periodically be polled (e.g. by the LSCP server) to |
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* check if some engine channel parameter has changed since the last |
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* StatusChanged() call. |
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* |
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* This method can also be used to mark the engine channel as changed |
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* from outside, e.g. by a MIDI input device. The optional argument |
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* \a nNewStatus can be used for this. |
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* |
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* TODO: This "poll method" is just a lazy solution and might be |
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* replaced in future. |
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* @param bNewStatus - (optional, default: false) sets the new status flag |
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* @returns true if engine channel status has changed since last |
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* StatusChanged() call |
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*/ |
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bool AbstractEngineChannel::StatusChanged(bool bNewStatus) { |
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bool b = bStatusChanged; |
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bStatusChanged = bNewStatus; |
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return b; |
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} |
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float AbstractEngineChannel::Volume() { |
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return GlobalVolume; |
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} |
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void AbstractEngineChannel::Volume(float f) { |
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GlobalVolume = f; |
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bStatusChanged = true; // status of engine channel has changed, so set notify flag |
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} |
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float AbstractEngineChannel::Pan() { |
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return float(iLastPanRequest - 64) / 64.0f; |
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} |
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void AbstractEngineChannel::Pan(float f) { |
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int iMidiPan = int(f * 64.0f) + 64; |
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if (iMidiPan > 127) iMidiPan = 127; |
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else if (iMidiPan < 0) iMidiPan = 0; |
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iLastPanRequest = iMidiPan; |
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} |
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AudioOutputDevice* AbstractEngineChannel::GetAudioOutputDevice() { |
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return (pEngine) ? pEngine->pAudioOutputDevice : NULL; |
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} |
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/** |
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* Gets thread safe access to the currently connected audio output |
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* device from other threads than the lscp thread. |
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*/ |
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AudioOutputDevice* AbstractEngineChannel::GetAudioOutputDeviceSafe() { |
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LockGuard lock(EngineMutex); |
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return GetAudioOutputDevice(); |
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} |
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iliev |
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void AbstractEngineChannel::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) { |
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if (!pEngine || !pEngine->pAudioOutputDevice) throw AudioOutputException("No audio output device connected yet."); |
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AudioChannel* pChannel = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannel); |
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if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel)); |
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switch (EngineAudioChannel) { |
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case 0: // left output channel |
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if (fxSends.empty()) pChannelLeft = pChannel; |
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AudioDeviceChannelLeft = AudioDeviceChannel; |
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break; |
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case 1: // right output channel |
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if (fxSends.empty()) pChannelRight = pChannel; |
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AudioDeviceChannelRight = AudioDeviceChannel; |
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break; |
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default: |
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throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); |
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} |
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bStatusChanged = true; |
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} |
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int AbstractEngineChannel::OutputChannel(uint EngineAudioChannel) { |
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switch (EngineAudioChannel) { |
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case 0: // left channel |
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return AudioDeviceChannelLeft; |
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case 1: // right channel |
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return AudioDeviceChannelRight; |
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default: |
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throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); |
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} |
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} |
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void AbstractEngineChannel::Connect(MidiInputPort* pMidiPort) { |
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if (!pMidiPort) return; |
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Sync< ArrayList<MidiInputPort*> > connections = midiInputs.back(); |
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// check if connection already exists |
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for (int i = 0; i < connections->size(); ++i) |
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if ((*connections)[i] == pMidiPort) |
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return; // to avoid endless recursion |
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connections->add(pMidiPort); |
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// inform MIDI port about this new connection |
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pMidiPort->Connect(this, MidiChannel()); |
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} |
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void AbstractEngineChannel::Disconnect(MidiInputPort* pMidiPort) { |
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if (!pMidiPort) return; |
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Sync< ArrayList<MidiInputPort*> > connections = midiInputs.back(); |
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for (int i = 0; i < connections->size(); ++i) { |
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if ((*connections)[i] == pMidiPort) { |
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connections->remove(i); |
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// inform MIDI port about this disconnection |
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pMidiPort->Disconnect(this); |
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return; |
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} |
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} |
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} |
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void AbstractEngineChannel::DisconnectAllMidiInputPorts() { |
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Sync< ArrayList<MidiInputPort*> > connections = midiInputs.back(); |
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ArrayList<MidiInputPort*> clonedList = *connections; |
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connections->clear(); |
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for (int i = 0; i < clonedList.size(); ++i) clonedList[i]->Disconnect(this); |
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} |
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uint AbstractEngineChannel::GetMidiInputPortCount() { |
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Sync< ArrayList<MidiInputPort*> > connections = midiInputs.back(); |
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return connections->size(); |
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} |
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MidiInputPort* AbstractEngineChannel::GetMidiInputPort(uint index) { |
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Sync< ArrayList<MidiInputPort*> > connections = midiInputs.back(); |
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return (index < connections->size()) ? (*connections)[index] : NULL; |
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} |
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// deprecated (just for API backward compatibility) - may be removed in future |
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void AbstractEngineChannel::Connect(MidiInputPort* pMidiPort, midi_chan_t MidiChannel) { |
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if (!pMidiPort) return; |
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Sync< ArrayList<MidiInputPort*> > connections = midiInputs.back(); |
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// check against endless recursion |
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if (connections->size() == 1 && (*connections)[0] == pMidiPort && this->midiChannel == MidiChannel) |
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return; |
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if (!isValidMidiChan(MidiChannel)) |
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throw MidiInputException("Invalid MIDI channel (" + ToString(int(MidiChannel)) + ")"); |
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this->midiChannel = MidiChannel; |
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// disconnect all currently connected MIDI ports |
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ArrayList<MidiInputPort*> clonedList = *connections; |
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connections->clear(); |
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for (int i = 0; i < clonedList.size(); ++i) |
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clonedList[i]->Disconnect(this); |
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// connect the new port |
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connections->add(pMidiPort); |
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pMidiPort->Connect(this, MidiChannel); |
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} |
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schoenebeck |
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// deprecated (just for API backward compatibility) - may be removed in future |
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void AbstractEngineChannel::DisconnectMidiInputPort() { |
309 |
schoenebeck |
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DisconnectAllMidiInputPorts(); |
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iliev |
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} |
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schoenebeck |
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// deprecated (just for API backward compatibility) - may be removed in future |
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MidiInputPort* AbstractEngineChannel::GetMidiInputPort() { |
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return GetMidiInputPort(0); |
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} |
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midi_chan_t AbstractEngineChannel::MidiChannel() { |
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return midiChannel; |
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} |
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schoenebeck |
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void AbstractEngineChannel::SetMidiChannel(midi_chan_t MidiChannel) { |
322 |
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if (this->midiChannel == MidiChannel) return; |
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if (!isValidMidiChan(MidiChannel)) |
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throw MidiInputException("Invalid MIDI channel (" + ToString(int(MidiChannel)) + ")"); |
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this->midiChannel = MidiChannel; |
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Sync< ArrayList<MidiInputPort*> > connections = midiInputs.back(); |
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ArrayList<MidiInputPort*> clonedList = *connections; |
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DisconnectAllMidiInputPorts(); |
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for (int i = 0; i < clonedList.size(); ++i) Connect(clonedList[i]); |
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} |
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iliev |
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void AbstractEngineChannel::Connect(VirtualMidiDevice* pDevice) { |
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// double buffer ... double work ... |
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{ |
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ArrayList<VirtualMidiDevice*>& devices = virtualMidiDevices.GetConfigForUpdate(); |
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devices.add(pDevice); |
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} |
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{ |
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ArrayList<VirtualMidiDevice*>& devices = virtualMidiDevices.SwitchConfig(); |
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devices.add(pDevice); |
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} |
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} |
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void AbstractEngineChannel::Disconnect(VirtualMidiDevice* pDevice) { |
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// double buffer ... double work ... |
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{ |
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ArrayList<VirtualMidiDevice*>& devices = virtualMidiDevices.GetConfigForUpdate(); |
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devices.remove(pDevice); |
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} |
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{ |
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ArrayList<VirtualMidiDevice*>& devices = virtualMidiDevices.SwitchConfig(); |
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devices.remove(pDevice); |
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} |
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} |
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/** |
361 |
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* Will be called by the MIDIIn Thread to let the audio thread trigger a new |
362 |
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* voice for the given key. This method is meant for real time rendering, |
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* that is an event will immediately be created with the current system |
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* time as time stamp. |
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* |
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* @param Key - MIDI key number of the triggered key |
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* @param Velocity - MIDI velocity value of the triggered key |
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*/ |
369 |
persson |
2317 |
void AbstractEngineChannel::SendNoteOn(uint8_t Key, uint8_t Velocity, uint8_t MidiChannel) { |
370 |
iliev |
2012 |
if (pEngine) { |
371 |
schoenebeck |
2500 |
// protection in case there are more than 1 MIDI input threads sending MIDI events to this EngineChannel |
372 |
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LockGuard g; |
373 |
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if (hasMultipleMIDIInputs()) g = LockGuard(MidiInputMutex); |
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375 |
iliev |
2012 |
Event event = pEngine->pEventGenerator->CreateEvent(); |
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event.Type = Event::type_note_on; |
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event.Param.Note.Key = Key; |
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event.Param.Note.Velocity = Velocity; |
379 |
persson |
2317 |
event.Param.Note.Channel = MidiChannel; |
380 |
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2606 |
memset(&event.Format, 0, sizeof(event.Format)); // init format speific stuff with zeroes |
381 |
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2012 |
event.pEngineChannel = this; |
382 |
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if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
383 |
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else dmsg(1,("EngineChannel: Input event queue full!")); |
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// inform connected virtual MIDI devices if any ... |
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// (e.g. virtual MIDI keyboard in instrument editor(s)) |
386 |
|
|
ArrayList<VirtualMidiDevice*>& devices = |
387 |
|
|
const_cast<ArrayList<VirtualMidiDevice*>&>( |
388 |
|
|
virtualMidiDevicesReader_MidiThread.Lock() |
389 |
|
|
); |
390 |
|
|
for (int i = 0; i < devices.size(); i++) { |
391 |
|
|
devices[i]->SendNoteOnToDevice(Key, Velocity); |
392 |
|
|
} |
393 |
|
|
virtualMidiDevicesReader_MidiThread.Unlock(); |
394 |
|
|
} |
395 |
|
|
} |
396 |
|
|
|
397 |
|
|
/** |
398 |
|
|
* Will be called by the MIDIIn Thread to let the audio thread trigger a new |
399 |
|
|
* voice for the given key. This method is meant for offline rendering |
400 |
|
|
* and / or for cases where the exact position of the event in the current |
401 |
|
|
* audio fragment is already known. |
402 |
|
|
* |
403 |
|
|
* @param Key - MIDI key number of the triggered key |
404 |
|
|
* @param Velocity - MIDI velocity value of the triggered key |
405 |
|
|
* @param FragmentPos - sample point position in the current audio |
406 |
|
|
* fragment to which this event belongs to |
407 |
|
|
*/ |
408 |
persson |
2317 |
void AbstractEngineChannel::SendNoteOn(uint8_t Key, uint8_t Velocity, uint8_t MidiChannel, int32_t FragmentPos) { |
409 |
iliev |
2012 |
if (FragmentPos < 0) { |
410 |
|
|
dmsg(1,("EngineChannel::SendNoteOn(): negative FragmentPos! Seems MIDI driver is buggy!")); |
411 |
|
|
} |
412 |
|
|
else if (pEngine) { |
413 |
schoenebeck |
2500 |
// protection in case there are more than 1 MIDI input threads sending MIDI events to this EngineChannel |
414 |
|
|
LockGuard g; |
415 |
|
|
if (hasMultipleMIDIInputs()) g = LockGuard(MidiInputMutex); |
416 |
|
|
|
417 |
iliev |
2012 |
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
418 |
|
|
event.Type = Event::type_note_on; |
419 |
|
|
event.Param.Note.Key = Key; |
420 |
|
|
event.Param.Note.Velocity = Velocity; |
421 |
persson |
2317 |
event.Param.Note.Channel = MidiChannel; |
422 |
persson |
2606 |
memset(&event.Format, 0, sizeof(event.Format)); // init format speific stuff with zeroes |
423 |
iliev |
2012 |
event.pEngineChannel = this; |
424 |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
425 |
|
|
else dmsg(1,("EngineChannel: Input event queue full!")); |
426 |
|
|
// inform connected virtual MIDI devices if any ... |
427 |
|
|
// (e.g. virtual MIDI keyboard in instrument editor(s)) |
428 |
|
|
ArrayList<VirtualMidiDevice*>& devices = |
429 |
|
|
const_cast<ArrayList<VirtualMidiDevice*>&>( |
430 |
|
|
virtualMidiDevicesReader_MidiThread.Lock() |
431 |
|
|
); |
432 |
|
|
for (int i = 0; i < devices.size(); i++) { |
433 |
|
|
devices[i]->SendNoteOnToDevice(Key, Velocity); |
434 |
|
|
} |
435 |
|
|
virtualMidiDevicesReader_MidiThread.Unlock(); |
436 |
|
|
} |
437 |
|
|
} |
438 |
|
|
|
439 |
|
|
/** |
440 |
|
|
* Will be called by the MIDIIn Thread to signal the audio thread to release |
441 |
|
|
* voice(s) on the given key. This method is meant for real time rendering, |
442 |
|
|
* that is an event will immediately be created with the current system |
443 |
|
|
* time as time stamp. |
444 |
|
|
* |
445 |
|
|
* @param Key - MIDI key number of the released key |
446 |
|
|
* @param Velocity - MIDI release velocity value of the released key |
447 |
|
|
*/ |
448 |
persson |
2317 |
void AbstractEngineChannel::SendNoteOff(uint8_t Key, uint8_t Velocity, uint8_t MidiChannel) { |
449 |
iliev |
2012 |
if (pEngine) { |
450 |
schoenebeck |
2500 |
// protection in case there are more than 1 MIDI input threads sending MIDI events to this EngineChannel |
451 |
|
|
LockGuard g; |
452 |
|
|
if (hasMultipleMIDIInputs()) g = LockGuard(MidiInputMutex); |
453 |
|
|
|
454 |
iliev |
2012 |
Event event = pEngine->pEventGenerator->CreateEvent(); |
455 |
|
|
event.Type = Event::type_note_off; |
456 |
|
|
event.Param.Note.Key = Key; |
457 |
|
|
event.Param.Note.Velocity = Velocity; |
458 |
persson |
2317 |
event.Param.Note.Channel = MidiChannel; |
459 |
persson |
2606 |
memset(&event.Format, 0, sizeof(event.Format)); // init format speific stuff with zeroes |
460 |
iliev |
2012 |
event.pEngineChannel = this; |
461 |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
462 |
|
|
else dmsg(1,("EngineChannel: Input event queue full!")); |
463 |
|
|
// inform connected virtual MIDI devices if any ... |
464 |
|
|
// (e.g. virtual MIDI keyboard in instrument editor(s)) |
465 |
|
|
ArrayList<VirtualMidiDevice*>& devices = |
466 |
|
|
const_cast<ArrayList<VirtualMidiDevice*>&>( |
467 |
|
|
virtualMidiDevicesReader_MidiThread.Lock() |
468 |
|
|
); |
469 |
|
|
for (int i = 0; i < devices.size(); i++) { |
470 |
|
|
devices[i]->SendNoteOffToDevice(Key, Velocity); |
471 |
|
|
} |
472 |
|
|
virtualMidiDevicesReader_MidiThread.Unlock(); |
473 |
|
|
} |
474 |
|
|
} |
475 |
|
|
|
476 |
|
|
/** |
477 |
|
|
* Will be called by the MIDIIn Thread to signal the audio thread to release |
478 |
|
|
* voice(s) on the given key. This method is meant for offline rendering |
479 |
|
|
* and / or for cases where the exact position of the event in the current |
480 |
|
|
* audio fragment is already known. |
481 |
|
|
* |
482 |
|
|
* @param Key - MIDI key number of the released key |
483 |
|
|
* @param Velocity - MIDI release velocity value of the released key |
484 |
|
|
* @param FragmentPos - sample point position in the current audio |
485 |
|
|
* fragment to which this event belongs to |
486 |
|
|
*/ |
487 |
persson |
2317 |
void AbstractEngineChannel::SendNoteOff(uint8_t Key, uint8_t Velocity, uint8_t MidiChannel, int32_t FragmentPos) { |
488 |
iliev |
2012 |
if (FragmentPos < 0) { |
489 |
|
|
dmsg(1,("EngineChannel::SendNoteOff(): negative FragmentPos! Seems MIDI driver is buggy!")); |
490 |
|
|
} |
491 |
|
|
else if (pEngine) { |
492 |
schoenebeck |
2500 |
// protection in case there are more than 1 MIDI input threads sending MIDI events to this EngineChannel |
493 |
|
|
LockGuard g; |
494 |
|
|
if (hasMultipleMIDIInputs()) g = LockGuard(MidiInputMutex); |
495 |
|
|
|
496 |
iliev |
2012 |
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
497 |
|
|
event.Type = Event::type_note_off; |
498 |
|
|
event.Param.Note.Key = Key; |
499 |
|
|
event.Param.Note.Velocity = Velocity; |
500 |
persson |
2317 |
event.Param.Note.Channel = MidiChannel; |
501 |
persson |
2606 |
memset(&event.Format, 0, sizeof(event.Format)); // init format speific stuff with zeroes |
502 |
iliev |
2012 |
event.pEngineChannel = this; |
503 |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
504 |
|
|
else dmsg(1,("EngineChannel: Input event queue full!")); |
505 |
|
|
// inform connected virtual MIDI devices if any ... |
506 |
|
|
// (e.g. virtual MIDI keyboard in instrument editor(s)) |
507 |
|
|
ArrayList<VirtualMidiDevice*>& devices = |
508 |
|
|
const_cast<ArrayList<VirtualMidiDevice*>&>( |
509 |
|
|
virtualMidiDevicesReader_MidiThread.Lock() |
510 |
|
|
); |
511 |
|
|
for (int i = 0; i < devices.size(); i++) { |
512 |
|
|
devices[i]->SendNoteOffToDevice(Key, Velocity); |
513 |
|
|
} |
514 |
|
|
virtualMidiDevicesReader_MidiThread.Unlock(); |
515 |
|
|
} |
516 |
|
|
} |
517 |
|
|
|
518 |
|
|
/** |
519 |
|
|
* Will be called by the MIDIIn Thread to signal the audio thread to change |
520 |
|
|
* the pitch value for all voices. This method is meant for real time |
521 |
|
|
* rendering, that is an event will immediately be created with the |
522 |
|
|
* current system time as time stamp. |
523 |
|
|
* |
524 |
|
|
* @param Pitch - MIDI pitch value (-8192 ... +8191) |
525 |
|
|
*/ |
526 |
persson |
2317 |
void AbstractEngineChannel::SendPitchbend(int Pitch, uint8_t MidiChannel) { |
527 |
iliev |
2012 |
if (pEngine) { |
528 |
schoenebeck |
2500 |
// protection in case there are more than 1 MIDI input threads sending MIDI events to this EngineChannel |
529 |
|
|
LockGuard g; |
530 |
|
|
if (hasMultipleMIDIInputs()) g = LockGuard(MidiInputMutex); |
531 |
|
|
|
532 |
iliev |
2012 |
Event event = pEngine->pEventGenerator->CreateEvent(); |
533 |
|
|
event.Type = Event::type_pitchbend; |
534 |
|
|
event.Param.Pitch.Pitch = Pitch; |
535 |
persson |
2317 |
event.Param.Pitch.Channel = MidiChannel; |
536 |
persson |
2606 |
memset(&event.Format, 0, sizeof(event.Format)); // init format speific stuff with zeroes |
537 |
iliev |
2012 |
event.pEngineChannel = this; |
538 |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
539 |
|
|
else dmsg(1,("EngineChannel: Input event queue full!")); |
540 |
|
|
} |
541 |
|
|
} |
542 |
|
|
|
543 |
|
|
/** |
544 |
|
|
* Will be called by the MIDIIn Thread to signal the audio thread to change |
545 |
|
|
* the pitch value for all voices. This method is meant for offline |
546 |
|
|
* rendering and / or for cases where the exact position of the event in |
547 |
|
|
* the current audio fragment is already known. |
548 |
|
|
* |
549 |
|
|
* @param Pitch - MIDI pitch value (-8192 ... +8191) |
550 |
|
|
* @param FragmentPos - sample point position in the current audio |
551 |
|
|
* fragment to which this event belongs to |
552 |
|
|
*/ |
553 |
persson |
2317 |
void AbstractEngineChannel::SendPitchbend(int Pitch, uint8_t MidiChannel, int32_t FragmentPos) { |
554 |
iliev |
2012 |
if (FragmentPos < 0) { |
555 |
|
|
dmsg(1,("AbstractEngineChannel::SendPitchBend(): negative FragmentPos! Seems MIDI driver is buggy!")); |
556 |
|
|
} |
557 |
|
|
else if (pEngine) { |
558 |
schoenebeck |
2500 |
// protection in case there are more than 1 MIDI input threads sending MIDI events to this EngineChannel |
559 |
|
|
LockGuard g; |
560 |
|
|
if (hasMultipleMIDIInputs()) g = LockGuard(MidiInputMutex); |
561 |
|
|
|
562 |
iliev |
2012 |
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
563 |
|
|
event.Type = Event::type_pitchbend; |
564 |
|
|
event.Param.Pitch.Pitch = Pitch; |
565 |
persson |
2317 |
event.Param.Pitch.Channel = MidiChannel; |
566 |
persson |
2606 |
memset(&event.Format, 0, sizeof(event.Format)); // init format speific stuff with zeroes |
567 |
iliev |
2012 |
event.pEngineChannel = this; |
568 |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
569 |
|
|
else dmsg(1,("AbstractEngineChannel: Input event queue full!")); |
570 |
|
|
} |
571 |
|
|
} |
572 |
|
|
|
573 |
|
|
/** |
574 |
|
|
* Will be called by the MIDIIn Thread to signal the audio thread that a |
575 |
|
|
* continuous controller value has changed. This method is meant for real |
576 |
|
|
* time rendering, that is an event will immediately be created with the |
577 |
|
|
* current system time as time stamp. |
578 |
|
|
* |
579 |
|
|
* @param Controller - MIDI controller number of the occured control change |
580 |
|
|
* @param Value - value of the control change |
581 |
|
|
*/ |
582 |
persson |
2317 |
void AbstractEngineChannel::SendControlChange(uint8_t Controller, uint8_t Value, uint8_t MidiChannel) { |
583 |
iliev |
2012 |
if (pEngine) { |
584 |
schoenebeck |
2500 |
// protection in case there are more than 1 MIDI input threads sending MIDI events to this EngineChannel |
585 |
|
|
LockGuard g; |
586 |
|
|
if (hasMultipleMIDIInputs()) g = LockGuard(MidiInputMutex); |
587 |
|
|
|
588 |
iliev |
2012 |
Event event = pEngine->pEventGenerator->CreateEvent(); |
589 |
|
|
event.Type = Event::type_control_change; |
590 |
|
|
event.Param.CC.Controller = Controller; |
591 |
|
|
event.Param.CC.Value = Value; |
592 |
persson |
2317 |
event.Param.CC.Channel = MidiChannel; |
593 |
persson |
2606 |
memset(&event.Format, 0, sizeof(event.Format)); // init format speific stuff with zeroes |
594 |
iliev |
2012 |
event.pEngineChannel = this; |
595 |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
596 |
|
|
else dmsg(1,("AbstractEngineChannel: Input event queue full!")); |
597 |
|
|
} |
598 |
|
|
} |
599 |
|
|
|
600 |
|
|
/** |
601 |
|
|
* Will be called by the MIDIIn Thread to signal the audio thread that a |
602 |
|
|
* continuous controller value has changed. This method is meant for |
603 |
|
|
* offline rendering and / or for cases where the exact position of the |
604 |
|
|
* event in the current audio fragment is already known. |
605 |
|
|
* |
606 |
|
|
* @param Controller - MIDI controller number of the occured control change |
607 |
|
|
* @param Value - value of the control change |
608 |
|
|
* @param FragmentPos - sample point position in the current audio |
609 |
|
|
* fragment to which this event belongs to |
610 |
|
|
*/ |
611 |
persson |
2317 |
void AbstractEngineChannel::SendControlChange(uint8_t Controller, uint8_t Value, uint8_t MidiChannel, int32_t FragmentPos) { |
612 |
iliev |
2012 |
if (FragmentPos < 0) { |
613 |
|
|
dmsg(1,("AbstractEngineChannel::SendControlChange(): negative FragmentPos! Seems MIDI driver is buggy!")); |
614 |
|
|
} |
615 |
|
|
else if (pEngine) { |
616 |
schoenebeck |
2500 |
// protection in case there are more than 1 MIDI input threads sending MIDI events to this EngineChannel |
617 |
|
|
LockGuard g; |
618 |
|
|
if (hasMultipleMIDIInputs()) g = LockGuard(MidiInputMutex); |
619 |
|
|
|
620 |
iliev |
2012 |
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
621 |
|
|
event.Type = Event::type_control_change; |
622 |
|
|
event.Param.CC.Controller = Controller; |
623 |
|
|
event.Param.CC.Value = Value; |
624 |
persson |
2317 |
event.Param.CC.Channel = MidiChannel; |
625 |
persson |
2606 |
memset(&event.Format, 0, sizeof(event.Format)); // init format speific stuff with zeroes |
626 |
iliev |
2012 |
event.pEngineChannel = this; |
627 |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
628 |
|
|
else dmsg(1,("AbstractEngineChannel: Input event queue full!")); |
629 |
|
|
} |
630 |
|
|
} |
631 |
|
|
|
632 |
schoenebeck |
2559 |
void AbstractEngineChannel::SendChannelPressure(uint8_t Value, uint8_t MidiChannel) { |
633 |
|
|
if (pEngine) { |
634 |
|
|
// protection in case there are more than 1 MIDI input threads sending MIDI events to this EngineChannel |
635 |
|
|
LockGuard g; |
636 |
|
|
if (hasMultipleMIDIInputs()) g = LockGuard(MidiInputMutex); |
637 |
|
|
|
638 |
|
|
Event event = pEngine->pEventGenerator->CreateEvent(); |
639 |
|
|
event.Type = Event::type_channel_pressure; |
640 |
schoenebeck |
2611 |
event.Param.ChannelPressure.Controller = CTRL_TABLE_IDX_AFTERTOUCH; // required for instrument scripts |
641 |
schoenebeck |
2559 |
event.Param.ChannelPressure.Value = Value; |
642 |
|
|
event.Param.ChannelPressure.Channel = MidiChannel; |
643 |
persson |
2606 |
memset(&event.Format, 0, sizeof(event.Format)); // init format speific stuff with zeroes |
644 |
schoenebeck |
2559 |
event.pEngineChannel = this; |
645 |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
646 |
|
|
else dmsg(1,("AbstractEngineChannel: Input event queue full!")); |
647 |
|
|
} |
648 |
|
|
} |
649 |
|
|
|
650 |
|
|
void AbstractEngineChannel::SendChannelPressure(uint8_t Value, uint8_t MidiChannel, int32_t FragmentPos) { |
651 |
|
|
if (pEngine) { |
652 |
|
|
// protection in case there are more than 1 MIDI input threads sending MIDI events to this EngineChannel |
653 |
|
|
LockGuard g; |
654 |
|
|
if (hasMultipleMIDIInputs()) g = LockGuard(MidiInputMutex); |
655 |
|
|
|
656 |
|
|
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
657 |
|
|
event.Type = Event::type_channel_pressure; |
658 |
schoenebeck |
2611 |
event.Param.ChannelPressure.Controller = CTRL_TABLE_IDX_AFTERTOUCH; // required for instrument scripts |
659 |
schoenebeck |
2559 |
event.Param.ChannelPressure.Value = Value; |
660 |
|
|
event.Param.ChannelPressure.Channel = MidiChannel; |
661 |
persson |
2606 |
memset(&event.Format, 0, sizeof(event.Format)); // init format speific stuff with zeroes |
662 |
schoenebeck |
2559 |
event.pEngineChannel = this; |
663 |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
664 |
|
|
else dmsg(1,("AbstractEngineChannel: Input event queue full!")); |
665 |
|
|
} |
666 |
|
|
} |
667 |
|
|
|
668 |
|
|
void AbstractEngineChannel::SendPolyphonicKeyPressure(uint8_t Key, uint8_t Value, uint8_t MidiChannel) { |
669 |
|
|
if (pEngine) { |
670 |
|
|
// protection in case there are more than 1 MIDI input threads sending MIDI events to this EngineChannel |
671 |
|
|
LockGuard g; |
672 |
|
|
if (hasMultipleMIDIInputs()) g = LockGuard(MidiInputMutex); |
673 |
|
|
|
674 |
|
|
Event event = pEngine->pEventGenerator->CreateEvent(); |
675 |
|
|
event.Type = Event::type_note_pressure; |
676 |
|
|
event.Param.NotePressure.Key = Key; |
677 |
|
|
event.Param.NotePressure.Value = Value; |
678 |
|
|
event.Param.NotePressure.Channel = MidiChannel; |
679 |
persson |
2606 |
memset(&event.Format, 0, sizeof(event.Format)); // init format speific stuff with zeroes |
680 |
schoenebeck |
2559 |
event.pEngineChannel = this; |
681 |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
682 |
|
|
else dmsg(1,("AbstractEngineChannel: Input event queue full!")); |
683 |
|
|
} |
684 |
|
|
} |
685 |
|
|
|
686 |
|
|
void AbstractEngineChannel::SendPolyphonicKeyPressure(uint8_t Key, uint8_t Value, uint8_t MidiChannel, int32_t FragmentPos) { |
687 |
|
|
if (pEngine) { |
688 |
|
|
// protection in case there are more than 1 MIDI input threads sending MIDI events to this EngineChannel |
689 |
|
|
LockGuard g; |
690 |
|
|
if (hasMultipleMIDIInputs()) g = LockGuard(MidiInputMutex); |
691 |
|
|
|
692 |
|
|
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
693 |
|
|
event.Type = Event::type_note_pressure; |
694 |
|
|
event.Param.NotePressure.Key = Key; |
695 |
|
|
event.Param.NotePressure.Value = Value; |
696 |
|
|
event.Param.NotePressure.Channel = MidiChannel; |
697 |
persson |
2606 |
memset(&event.Format, 0, sizeof(event.Format)); // init format speific stuff with zeroes |
698 |
schoenebeck |
2559 |
event.pEngineChannel = this; |
699 |
|
|
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
700 |
|
|
else dmsg(1,("AbstractEngineChannel: Input event queue full!")); |
701 |
|
|
} |
702 |
|
|
} |
703 |
|
|
|
704 |
iliev |
2012 |
/** |
705 |
|
|
* Copy all events from the engine channel's input event queue buffer to |
706 |
|
|
* the internal event list. This will be done at the beginning of each |
707 |
|
|
* audio cycle (that is each RenderAudio() call) to distinguish all |
708 |
|
|
* events which have to be processed in the current audio cycle. Each |
709 |
|
|
* EngineChannel has it's own input event queue for the common channel |
710 |
|
|
* specific events (like NoteOn, NoteOff and ControlChange events). |
711 |
|
|
* Beside that, the engine also has a input event queue for global |
712 |
|
|
* events (usually SysEx messages). |
713 |
|
|
* |
714 |
|
|
* @param Samples - number of sample points to be processed in the |
715 |
|
|
* current audio cycle |
716 |
|
|
*/ |
717 |
|
|
void AbstractEngineChannel::ImportEvents(uint Samples) { |
718 |
|
|
// import events from pure software MIDI "devices" |
719 |
|
|
// (e.g. virtual keyboard in instrument editor) |
720 |
|
|
{ |
721 |
persson |
2317 |
const uint8_t channel = MidiChannel() == midi_chan_all ? 0 : MidiChannel(); |
722 |
iliev |
2012 |
const int FragmentPos = 0; // randomly chosen, we don't care about jitter for virtual MIDI devices |
723 |
|
|
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
724 |
|
|
VirtualMidiDevice::event_t devEvent; // the event format we get from the virtual MIDI device |
725 |
|
|
// as we're going to (carefully) write some status to the |
726 |
|
|
// synchronized struct, we cast away the const |
727 |
|
|
ArrayList<VirtualMidiDevice*>& devices = |
728 |
|
|
const_cast<ArrayList<VirtualMidiDevice*>&>(virtualMidiDevicesReader_AudioThread.Lock()); |
729 |
|
|
// iterate through all virtual MIDI devices |
730 |
|
|
for (int i = 0; i < devices.size(); i++) { |
731 |
|
|
VirtualMidiDevice* pDev = devices[i]; |
732 |
|
|
// I think we can simply flush the whole FIFO(s), the user shouldn't be so fast ;-) |
733 |
|
|
while (pDev->GetMidiEventFromDevice(devEvent)) { |
734 |
schoenebeck |
2025 |
switch (devEvent.Type) { |
735 |
|
|
case VirtualMidiDevice::EVENT_TYPE_NOTEON: |
736 |
|
|
event.Type = Event::type_note_on; |
737 |
|
|
event.Param.Note.Key = devEvent.Arg1; |
738 |
|
|
event.Param.Note.Velocity = devEvent.Arg2; |
739 |
persson |
2317 |
event.Param.Note.Channel = channel; |
740 |
schoenebeck |
2025 |
break; |
741 |
|
|
case VirtualMidiDevice::EVENT_TYPE_NOTEOFF: |
742 |
|
|
event.Type = Event::type_note_off; |
743 |
|
|
event.Param.Note.Key = devEvent.Arg1; |
744 |
|
|
event.Param.Note.Velocity = devEvent.Arg2; |
745 |
persson |
2317 |
event.Param.Note.Channel = channel; |
746 |
schoenebeck |
2025 |
break; |
747 |
|
|
case VirtualMidiDevice::EVENT_TYPE_CC: |
748 |
schoenebeck |
2521 |
switch (devEvent.Arg1) { |
749 |
|
|
case 0: // bank select MSB ... |
750 |
|
|
SetMidiBankMsb(devEvent.Arg2); |
751 |
|
|
continue; // don't push this event into FIFO |
752 |
|
|
case 32: // bank select LSB ... |
753 |
|
|
SetMidiBankLsb(devEvent.Arg2); |
754 |
|
|
continue; // don't push this event into FIFO |
755 |
|
|
default: // regular MIDI CC ... |
756 |
|
|
event.Type = Event::type_control_change; |
757 |
|
|
event.Param.CC.Controller = devEvent.Arg1; |
758 |
|
|
event.Param.CC.Value = devEvent.Arg2; |
759 |
|
|
event.Param.CC.Channel = channel; |
760 |
|
|
} |
761 |
schoenebeck |
2025 |
break; |
762 |
schoenebeck |
2521 |
case VirtualMidiDevice::EVENT_TYPE_PITCHBEND: |
763 |
|
|
event.Type = Event::type_pitchbend; |
764 |
|
|
event.Param.Pitch.Pitch = int(devEvent.Arg2 << 7 | devEvent.Arg1) - 8192; |
765 |
|
|
event.Param.Pitch.Channel = channel; |
766 |
|
|
break; |
767 |
|
|
case VirtualMidiDevice::EVENT_TYPE_PROGRAM: |
768 |
|
|
SendProgramChange(devEvent.Arg1); |
769 |
|
|
continue; // don't push this event into FIFO |
770 |
schoenebeck |
2025 |
default: |
771 |
|
|
std::cerr << "AbstractEngineChannel::ImportEvents() ERROR: unknown event type (" |
772 |
|
|
<< devEvent.Type << "). This is a bug!"; |
773 |
|
|
continue; |
774 |
|
|
} |
775 |
|
|
event.pEngineChannel = this; |
776 |
iliev |
2012 |
// copy event to internal event list |
777 |
|
|
if (pEvents->poolIsEmpty()) { |
778 |
|
|
dmsg(1,("Event pool emtpy!\n")); |
779 |
|
|
goto exitVirtualDevicesLoop; |
780 |
|
|
} |
781 |
|
|
*pEvents->allocAppend() = event; |
782 |
|
|
} |
783 |
|
|
} |
784 |
|
|
} |
785 |
|
|
exitVirtualDevicesLoop: |
786 |
|
|
virtualMidiDevicesReader_AudioThread.Unlock(); |
787 |
|
|
|
788 |
|
|
// import events from the regular MIDI devices |
789 |
|
|
RingBuffer<Event,false>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
790 |
|
|
Event* pEvent; |
791 |
|
|
while (true) { |
792 |
|
|
// get next event from input event queue |
793 |
|
|
if (!(pEvent = eventQueueReader.pop())) break; |
794 |
|
|
// if younger event reached, ignore that and all subsequent ones for now |
795 |
|
|
if (pEvent->FragmentPos() >= Samples) { |
796 |
|
|
eventQueueReader--; |
797 |
|
|
dmsg(2,("Younger Event, pos=%d ,Samples=%d!\n",pEvent->FragmentPos(),Samples)); |
798 |
|
|
pEvent->ResetFragmentPos(); |
799 |
|
|
break; |
800 |
|
|
} |
801 |
|
|
// copy event to internal event list |
802 |
|
|
if (pEvents->poolIsEmpty()) { |
803 |
|
|
dmsg(1,("Event pool emtpy!\n")); |
804 |
|
|
break; |
805 |
|
|
} |
806 |
|
|
*pEvents->allocAppend() = *pEvent; |
807 |
|
|
} |
808 |
|
|
eventQueueReader.free(); // free all copied events from input queue |
809 |
|
|
} |
810 |
schoenebeck |
2598 |
|
811 |
schoenebeck |
2596 |
/** |
812 |
|
|
* Called by real-time instrument script functions to schedule a new event |
813 |
|
|
* somewhere in future. |
814 |
schoenebeck |
2598 |
* |
815 |
|
|
* @returns unique event ID of scheduled new event |
816 |
schoenebeck |
2596 |
*/ |
817 |
schoenebeck |
2598 |
int AbstractEngineChannel::ScheduleEvent(const Event* pEvent, int delay) { //TODO: delay not implemented yet |
818 |
schoenebeck |
2596 |
// since delay is not implemented yet, we simply add the new event |
819 |
|
|
// to the event list of the current audio fragmet cycle for now |
820 |
|
|
RTList<Event>::Iterator itEvent = pEvents->allocAppend(); |
821 |
|
|
if (itEvent) *itEvent = *pEvent; // copy event |
822 |
schoenebeck |
2598 |
return pEvents->getID(itEvent); |
823 |
schoenebeck |
2596 |
} |
824 |
iliev |
2012 |
|
825 |
schoenebeck |
2598 |
/** |
826 |
|
|
* Called by real-time instrument script functions to ignore the event |
827 |
|
|
* reflected by given event ID. The event will be freed immediately to its |
828 |
|
|
* pool and cannot be dereferenced by its old ID anymore. Even if its |
829 |
|
|
* allocated back from the Pool later on, it will have a different ID. |
830 |
|
|
*/ |
831 |
|
|
void AbstractEngineChannel::IgnoreEvent(int id) { |
832 |
|
|
RTList<Event>::Iterator it = pEvents->fromID(id); |
833 |
|
|
if (it) pEvents->free(it); |
834 |
|
|
} |
835 |
|
|
|
836 |
iliev |
2012 |
FxSend* AbstractEngineChannel::AddFxSend(uint8_t MidiCtrl, String Name) throw (Exception) { |
837 |
|
|
if (pEngine) pEngine->DisableAndLock(); |
838 |
|
|
FxSend* pFxSend = new FxSend(this, MidiCtrl, Name); |
839 |
|
|
if (fxSends.empty()) { |
840 |
|
|
if (pEngine && pEngine->pAudioOutputDevice) { |
841 |
|
|
AudioOutputDevice* pDevice = pEngine->pAudioOutputDevice; |
842 |
|
|
// create local render buffers |
843 |
|
|
pChannelLeft = new AudioChannel(0, pDevice->MaxSamplesPerCycle()); |
844 |
|
|
pChannelRight = new AudioChannel(1, pDevice->MaxSamplesPerCycle()); |
845 |
|
|
} else { |
846 |
|
|
// postpone local render buffer creation until audio device is assigned |
847 |
|
|
pChannelLeft = NULL; |
848 |
|
|
pChannelRight = NULL; |
849 |
|
|
} |
850 |
|
|
} |
851 |
|
|
fxSends.push_back(pFxSend); |
852 |
|
|
if (pEngine) pEngine->Enable(); |
853 |
|
|
fireFxSendCountChanged(GetSamplerChannel()->Index(), GetFxSendCount()); |
854 |
|
|
|
855 |
|
|
return pFxSend; |
856 |
|
|
} |
857 |
|
|
|
858 |
|
|
FxSend* AbstractEngineChannel::GetFxSend(uint FxSendIndex) { |
859 |
|
|
return (FxSendIndex < fxSends.size()) ? fxSends[FxSendIndex] : NULL; |
860 |
|
|
} |
861 |
|
|
|
862 |
|
|
uint AbstractEngineChannel::GetFxSendCount() { |
863 |
|
|
return fxSends.size(); |
864 |
|
|
} |
865 |
|
|
|
866 |
|
|
void AbstractEngineChannel::RemoveFxSend(FxSend* pFxSend) { |
867 |
|
|
if (pEngine) pEngine->DisableAndLock(); |
868 |
|
|
for ( |
869 |
|
|
std::vector<FxSend*>::iterator iter = fxSends.begin(); |
870 |
|
|
iter != fxSends.end(); iter++ |
871 |
|
|
) { |
872 |
|
|
if (*iter == pFxSend) { |
873 |
|
|
delete pFxSend; |
874 |
|
|
fxSends.erase(iter); |
875 |
|
|
if (fxSends.empty()) { |
876 |
|
|
// destroy local render buffers |
877 |
|
|
if (pChannelLeft) delete pChannelLeft; |
878 |
|
|
if (pChannelRight) delete pChannelRight; |
879 |
|
|
// fallback to render directly into AudioOutputDevice's buffers |
880 |
|
|
if (pEngine && pEngine->pAudioOutputDevice) { |
881 |
|
|
pChannelLeft = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelLeft); |
882 |
|
|
pChannelRight = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelRight); |
883 |
|
|
} else { // we update the pointers later |
884 |
|
|
pChannelLeft = NULL; |
885 |
|
|
pChannelRight = NULL; |
886 |
|
|
} |
887 |
|
|
} |
888 |
|
|
break; |
889 |
|
|
} |
890 |
|
|
} |
891 |
|
|
if (pEngine) pEngine->Enable(); |
892 |
|
|
fireFxSendCountChanged(GetSamplerChannel()->Index(), GetFxSendCount()); |
893 |
|
|
} |
894 |
|
|
|
895 |
|
|
void AbstractEngineChannel::RemoveAllFxSends() { |
896 |
|
|
if (pEngine) pEngine->DisableAndLock(); |
897 |
|
|
if (!fxSends.empty()) { // free local render buffers |
898 |
|
|
if (pChannelLeft) { |
899 |
|
|
delete pChannelLeft; |
900 |
|
|
if (pEngine && pEngine->pAudioOutputDevice) { |
901 |
|
|
// fallback to render directly to the AudioOutputDevice's buffer |
902 |
|
|
pChannelLeft = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelLeft); |
903 |
|
|
} else pChannelLeft = NULL; |
904 |
|
|
} |
905 |
|
|
if (pChannelRight) { |
906 |
|
|
delete pChannelRight; |
907 |
|
|
if (pEngine && pEngine->pAudioOutputDevice) { |
908 |
|
|
// fallback to render directly to the AudioOutputDevice's buffer |
909 |
|
|
pChannelRight = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelRight); |
910 |
|
|
} else pChannelRight = NULL; |
911 |
|
|
} |
912 |
|
|
} |
913 |
|
|
for (int i = 0; i < fxSends.size(); i++) delete fxSends[i]; |
914 |
|
|
fxSends.clear(); |
915 |
|
|
if (pEngine) pEngine->Enable(); |
916 |
|
|
} |
917 |
|
|
|
918 |
persson |
2114 |
/** |
919 |
|
|
* Add a group number to the set of key groups. Should be called |
920 |
|
|
* when an instrument is loaded to make sure there are event lists |
921 |
|
|
* for all key groups. |
922 |
|
|
*/ |
923 |
|
|
void AbstractEngineChannel::AddGroup(uint group) { |
924 |
|
|
if (group) { |
925 |
persson |
2127 |
std::pair<ActiveKeyGroupMap::iterator, bool> p = |
926 |
|
|
ActiveKeyGroups.insert(ActiveKeyGroupMap::value_type(group, 0)); |
927 |
persson |
2114 |
if (p.second) { |
928 |
persson |
2127 |
// If the engine channel is pending deletion (see bug |
929 |
|
|
// #113), pEngine will be null, so we can't use |
930 |
|
|
// pEngine->pEventPool here. Instead we're using a |
931 |
|
|
// specialized RTList that allows specifying the pool |
932 |
|
|
// later. |
933 |
|
|
(*p.first).second = new LazyList<Event>; |
934 |
persson |
2114 |
} |
935 |
|
|
} |
936 |
|
|
} |
937 |
|
|
|
938 |
|
|
/** |
939 |
|
|
* Handle key group (a.k.a. exclusive group) conflicts. |
940 |
|
|
*/ |
941 |
|
|
void AbstractEngineChannel::HandleKeyGroupConflicts(uint KeyGroup, Pool<Event>::Iterator& itNoteOnEvent) { |
942 |
|
|
dmsg(4,("HandelKeyGroupConflicts KeyGroup=%d\n", KeyGroup)); |
943 |
|
|
if (KeyGroup) { |
944 |
|
|
// send a release event to all active voices in the group |
945 |
persson |
2127 |
RTList<Event>::Iterator itEvent = ActiveKeyGroups[KeyGroup]->allocAppend(pEngine->pEventPool); |
946 |
persson |
2114 |
*itEvent = *itNoteOnEvent; |
947 |
|
|
} |
948 |
|
|
} |
949 |
|
|
|
950 |
|
|
/** |
951 |
|
|
* Empty the lists of group events. Should be called from the |
952 |
|
|
* audio thread, after all voices have been rendered. |
953 |
|
|
*/ |
954 |
|
|
void AbstractEngineChannel::ClearGroupEventLists() { |
955 |
persson |
2127 |
for (ActiveKeyGroupMap::iterator iter = ActiveKeyGroups.begin(); |
956 |
persson |
2114 |
iter != ActiveKeyGroups.end(); iter++) { |
957 |
|
|
if (iter->second) { |
958 |
|
|
iter->second->clear(); |
959 |
|
|
} else { |
960 |
|
|
dmsg(1,("EngineChannel: group event list was NULL")); |
961 |
|
|
} |
962 |
|
|
} |
963 |
|
|
} |
964 |
|
|
|
965 |
|
|
/** |
966 |
|
|
* Remove all lists with group events. |
967 |
|
|
*/ |
968 |
|
|
void AbstractEngineChannel::DeleteGroupEventLists() { |
969 |
persson |
2127 |
for (ActiveKeyGroupMap::iterator iter = ActiveKeyGroups.begin(); |
970 |
persson |
2114 |
iter != ActiveKeyGroups.end(); iter++) { |
971 |
|
|
delete iter->second; |
972 |
|
|
} |
973 |
|
|
ActiveKeyGroups.clear(); |
974 |
|
|
} |
975 |
|
|
|
976 |
iliev |
2012 |
} // namespace LinuxSampler |