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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
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* * |
* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005, 2006 Christian Schoenebeck * |
* Copyright (C) 2005 - 2008 Christian Schoenebeck * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
* it under the terms of the GNU General Public License as published by * |
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#include "EngineChannel.h" |
#include "EngineChannel.h" |
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#include "../../common/global_private.h" |
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#include "../../Sampler.h" |
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namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
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31 |
EngineChannel::EngineChannel() { |
EngineChannel::EngineChannel() : |
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InstrumentChangeCommandReader(InstrumentChangeCommand), |
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virtualMidiDevicesReader_AudioThread(virtualMidiDevices), |
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virtualMidiDevicesReader_MidiThread(virtualMidiDevices) |
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{ |
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pMIDIKeyInfo = new midi_key_info_t[128]; |
pMIDIKeyInfo = new midi_key_info_t[128]; |
37 |
pEngine = NULL; |
pEngine = NULL; |
38 |
pInstrument = NULL; |
pInstrument = NULL; |
60 |
SoloMode = false; |
SoloMode = false; |
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PortamentoMode = false; |
PortamentoMode = false; |
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PortamentoTime = CONFIG_PORTAMENTO_TIME_DEFAULT; |
PortamentoTime = CONFIG_PORTAMENTO_TIME_DEFAULT; |
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64 |
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// reset the instrument change command struct (need to be done |
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// twice, as it is double buffered) |
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{ |
67 |
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instrument_change_command_t& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
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cmd.pDimRegionsInUse = NULL; |
69 |
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cmd.pInstrument = NULL; |
70 |
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cmd.bChangeInstrument = false; |
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} |
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{ |
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instrument_change_command_t& cmd = InstrumentChangeCommand.SwitchConfig(); |
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cmd.pDimRegionsInUse = NULL; |
75 |
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cmd.pInstrument = NULL; |
76 |
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cmd.bChangeInstrument = false; |
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} |
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} |
} |
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|
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EngineChannel::~EngineChannel() { |
EngineChannel::~EngineChannel() { |
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DisconnectAudioOutputDevice(); |
DisconnectAudioOutputDevice(); |
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if (pInstrument) Engine::instruments.HandBack(pInstrument, this); |
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// In case the channel was removed before the instrument was |
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// fully loaded, try to give back instrument again (see bug #113) |
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instrument_change_command_t& cmd = ChangeInstrument(NULL); |
86 |
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if (cmd.pInstrument) { |
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Engine::instruments.HandBack(cmd.pInstrument, this); |
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} |
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/////// |
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if (pEventQueue) delete pEventQueue; |
if (pEventQueue) delete pEventQueue; |
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if (pActiveKeys) delete pActiveKeys; |
if (pActiveKeys) delete pActiveKeys; |
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if (pMIDIKeyInfo) delete[] pMIDIKeyInfo; |
if (pMIDIKeyInfo) delete[] pMIDIKeyInfo; |
189 |
* This method will then actually start to load the instrument and block |
* This method will then actually start to load the instrument and block |
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* the calling thread until loading was completed. |
* the calling thread until loading was completed. |
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* |
* |
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* @returns detailed description of the method call result |
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* @see PrepareLoadInstrument() |
* @see PrepareLoadInstrument() |
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*/ |
*/ |
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void EngineChannel::LoadInstrument() { |
void EngineChannel::LoadInstrument() { |
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::gig::Instrument* oldInstrument = pInstrument; |
// make sure we don't trigger any new notes with an old |
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// instrument |
197 |
// free old instrument |
instrument_change_command_t& cmd = ChangeInstrument(0); |
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if (oldInstrument) { |
if (cmd.pInstrument) { |
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if (pEngine) { |
// give old instrument back to instrument manager, but |
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// make sure we don't trigger any new notes with the |
// keep the dimension regions and samples that are in use |
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// old instrument |
Engine::instruments.HandBackInstrument(cmd.pInstrument, this, cmd.pDimRegionsInUse); |
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::gig::DimensionRegion** dimRegionsInUse = pEngine->ChangeInstrument(this, 0); |
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// give old instrument back to instrument manager, but |
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// keep the dimension regions and samples that are in |
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// use |
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Engine::instruments.HandBackInstrument(oldInstrument, this, dimRegionsInUse); |
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} else { |
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Engine::instruments.HandBack(oldInstrument, this); |
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} |
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} |
} |
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cmd.pDimRegionsInUse->clear(); |
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// delete all key groups |
// delete all key groups |
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ActiveKeyGroups.clear(); |
ActiveKeyGroups.clear(); |
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instrid.Index = InstrumentIdx; |
instrid.Index = InstrumentIdx; |
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newInstrument = Engine::instruments.Borrow(instrid, this); |
newInstrument = Engine::instruments.Borrow(instrid, this); |
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if (!newInstrument) { |
if (!newInstrument) { |
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InstrumentStat = -1; |
throw InstrumentManagerException("resource was not created"); |
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dmsg(1,("no instrument loaded!!!\n")); |
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exit(EXIT_FAILURE); |
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} |
} |
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} |
} |
219 |
catch (RIFF::Exception e) { |
catch (RIFF::Exception e) { |
220 |
InstrumentStat = -2; |
InstrumentStat = -2; |
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StatusChanged(true); |
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String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message; |
String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message; |
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throw Exception(msg); |
throw Exception(msg); |
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} |
} |
225 |
catch (InstrumentResourceManagerException e) { |
catch (InstrumentManagerException e) { |
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InstrumentStat = -3; |
InstrumentStat = -3; |
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StatusChanged(true); |
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String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message(); |
String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message(); |
229 |
throw Exception(msg); |
throw Exception(msg); |
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} |
} |
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catch (...) { |
catch (...) { |
232 |
InstrumentStat = -4; |
InstrumentStat = -4; |
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StatusChanged(true); |
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throw Exception("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file."); |
throw Exception("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file."); |
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} |
} |
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241 |
InstrumentIdxName = newInstrument->pInfo->Name; |
InstrumentIdxName = newInstrument->pInfo->Name; |
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InstrumentStat = 100; |
InstrumentStat = 100; |
243 |
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244 |
if (pEngine) pEngine->ChangeInstrument(this, newInstrument); |
ChangeInstrument(newInstrument); |
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else pInstrument = newInstrument; |
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246 |
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StatusChanged(true); |
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} |
248 |
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249 |
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/** |
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* Changes the instrument for an engine channel. |
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* |
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* @param pInstrument - new instrument |
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* @returns the resulting instrument change command after the |
255 |
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* command switch, containing the old instrument and |
256 |
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* the dimregions it is using |
257 |
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*/ |
258 |
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EngineChannel::instrument_change_command_t& EngineChannel::ChangeInstrument(::gig::Instrument* pInstrument) { |
259 |
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instrument_change_command_t& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
260 |
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cmd.pInstrument = pInstrument; |
261 |
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cmd.bChangeInstrument = true; |
262 |
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263 |
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return InstrumentChangeCommand.SwitchConfig(); |
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} |
} |
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/** |
/** |
305 |
pEngine = Engine::AcquireEngine(this, pAudioOut); |
pEngine = Engine::AcquireEngine(this, pAudioOut); |
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ResetInternal(); |
ResetInternal(); |
307 |
pEvents = new RTList<Event>(pEngine->pEventPool); |
pEvents = new RTList<Event>(pEngine->pEventPool); |
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309 |
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// reset the instrument change command struct (need to be done |
310 |
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// twice, as it is double buffered) |
311 |
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{ |
312 |
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instrument_change_command_t& cmd = InstrumentChangeCommand.GetConfigForUpdate(); |
313 |
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cmd.pDimRegionsInUse = new RTList< ::gig::DimensionRegion*>(pEngine->pDimRegionPool[0]); |
314 |
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cmd.pInstrument = 0; |
315 |
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cmd.bChangeInstrument = false; |
316 |
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} |
317 |
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{ |
318 |
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instrument_change_command_t& cmd = InstrumentChangeCommand.SwitchConfig(); |
319 |
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cmd.pDimRegionsInUse = new RTList< ::gig::DimensionRegion*>(pEngine->pDimRegionPool[1]); |
320 |
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cmd.pInstrument = 0; |
321 |
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cmd.bChangeInstrument = false; |
322 |
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} |
323 |
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324 |
for (uint i = 0; i < 128; i++) { |
for (uint i = 0; i < 128; i++) { |
325 |
pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pEngine->pVoicePool); |
pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pEngine->pVoicePool); |
326 |
pMIDIKeyInfo[i].pEvents = new RTList<Event>(pEngine->pEventPool); |
pMIDIKeyInfo[i].pEvents = new RTList<Event>(pEngine->pEventPool); |
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344 |
void EngineChannel::DisconnectAudioOutputDevice() { |
void EngineChannel::DisconnectAudioOutputDevice() { |
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if (pEngine) { // if clause to prevent disconnect loops |
if (pEngine) { // if clause to prevent disconnect loops |
346 |
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347 |
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// delete the structures used for instrument change |
348 |
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RTList< ::gig::DimensionRegion*>* d = InstrumentChangeCommand.GetConfigForUpdate().pDimRegionsInUse; |
349 |
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if (d) delete d; |
350 |
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EngineChannel::instrument_change_command_t& cmd = InstrumentChangeCommand.SwitchConfig(); |
351 |
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d = cmd.pDimRegionsInUse; |
352 |
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353 |
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if (cmd.pInstrument) { |
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// release the currently loaded instrument |
355 |
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Engine::instruments.HandBackInstrument(cmd.pInstrument, this, d); |
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} |
357 |
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358 |
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if (d) delete d; |
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360 |
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// release all active dimension regions to resource |
361 |
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// manager |
362 |
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RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
363 |
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RTList<uint>::Iterator end = pActiveKeys->end(); |
364 |
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while (iuiKey != end) { // iterate through all active keys |
365 |
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midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey]; |
366 |
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++iuiKey; |
367 |
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368 |
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RTList<Voice>::Iterator itVoice = pKey->pActiveVoices->first(); |
369 |
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RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end(); |
370 |
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for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
371 |
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Engine::instruments.HandBackDimReg(itVoice->pDimRgn); |
372 |
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} |
373 |
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} |
374 |
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375 |
ResetInternal(); |
ResetInternal(); |
376 |
if (pEvents) { |
if (pEvents) { |
377 |
delete pEvents; |
delete pEvents; |
423 |
default: |
default: |
424 |
throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); |
throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel)); |
425 |
} |
} |
426 |
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427 |
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bStatusChanged = true; |
428 |
} |
} |
429 |
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430 |
int EngineChannel::OutputChannel(uint EngineAudioChannel) { |
int EngineChannel::OutputChannel(uint EngineAudioChannel) { |
477 |
} |
} |
478 |
fxSends.push_back(pFxSend); |
fxSends.push_back(pFxSend); |
479 |
if (pEngine) pEngine->Enable(); |
if (pEngine) pEngine->Enable(); |
480 |
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fireFxSendCountChanged(GetSamplerChannel()->Index(), GetFxSendCount()); |
481 |
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482 |
return pFxSend; |
return pFxSend; |
483 |
} |
} |
484 |
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516 |
} |
} |
517 |
} |
} |
518 |
if (pEngine) pEngine->Enable(); |
if (pEngine) pEngine->Enable(); |
519 |
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fireFxSendCountChanged(GetSamplerChannel()->Index(), GetFxSendCount()); |
520 |
} |
} |
521 |
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/** |
/** |
537 |
event.pEngineChannel = this; |
event.pEngineChannel = this; |
538 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
539 |
else dmsg(1,("EngineChannel: Input event queue full!")); |
else dmsg(1,("EngineChannel: Input event queue full!")); |
540 |
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// inform connected virtual MIDI devices if any ... |
541 |
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// (e.g. virtual MIDI keyboard in instrument editor(s)) |
542 |
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ArrayList<VirtualMidiDevice*>& devices = |
543 |
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const_cast<ArrayList<VirtualMidiDevice*>&>( |
544 |
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virtualMidiDevicesReader_MidiThread.Lock() |
545 |
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); |
546 |
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for (int i = 0; i < devices.size(); i++) { |
547 |
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devices[i]->SendNoteOnToDevice(Key, Velocity); |
548 |
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} |
549 |
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virtualMidiDevicesReader_MidiThread.Unlock(); |
550 |
} |
} |
551 |
} |
} |
552 |
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|
573 |
event.pEngineChannel = this; |
event.pEngineChannel = this; |
574 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
575 |
else dmsg(1,("EngineChannel: Input event queue full!")); |
else dmsg(1,("EngineChannel: Input event queue full!")); |
576 |
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// inform connected virtual MIDI devices if any ... |
577 |
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// (e.g. virtual MIDI keyboard in instrument editor(s)) |
578 |
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ArrayList<VirtualMidiDevice*>& devices = |
579 |
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const_cast<ArrayList<VirtualMidiDevice*>&>( |
580 |
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virtualMidiDevicesReader_MidiThread.Lock() |
581 |
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); |
582 |
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for (int i = 0; i < devices.size(); i++) { |
583 |
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devices[i]->SendNoteOnToDevice(Key, Velocity); |
584 |
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} |
585 |
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virtualMidiDevicesReader_MidiThread.Unlock(); |
586 |
} |
} |
587 |
} |
} |
588 |
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|
604 |
event.pEngineChannel = this; |
event.pEngineChannel = this; |
605 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
606 |
else dmsg(1,("EngineChannel: Input event queue full!")); |
else dmsg(1,("EngineChannel: Input event queue full!")); |
607 |
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// inform connected virtual MIDI devices if any ... |
608 |
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// (e.g. virtual MIDI keyboard in instrument editor(s)) |
609 |
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ArrayList<VirtualMidiDevice*>& devices = |
610 |
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const_cast<ArrayList<VirtualMidiDevice*>&>( |
611 |
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virtualMidiDevicesReader_MidiThread.Lock() |
612 |
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); |
613 |
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for (int i = 0; i < devices.size(); i++) { |
614 |
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devices[i]->SendNoteOffToDevice(Key, Velocity); |
615 |
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} |
616 |
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virtualMidiDevicesReader_MidiThread.Unlock(); |
617 |
} |
} |
618 |
} |
} |
619 |
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|
640 |
event.pEngineChannel = this; |
event.pEngineChannel = this; |
641 |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
if (this->pEventQueue->write_space() > 0) this->pEventQueue->push(&event); |
642 |
else dmsg(1,("EngineChannel: Input event queue full!")); |
else dmsg(1,("EngineChannel: Input event queue full!")); |
643 |
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// inform connected virtual MIDI devices if any ... |
644 |
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// (e.g. virtual MIDI keyboard in instrument editor(s)) |
645 |
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ArrayList<VirtualMidiDevice*>& devices = |
646 |
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const_cast<ArrayList<VirtualMidiDevice*>&>( |
647 |
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virtualMidiDevicesReader_MidiThread.Lock() |
648 |
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); |
649 |
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for (int i = 0; i < devices.size(); i++) { |
650 |
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devices[i]->SendNoteOffToDevice(Key, Velocity); |
651 |
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} |
652 |
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virtualMidiDevicesReader_MidiThread.Unlock(); |
653 |
} |
} |
654 |
} |
} |
655 |
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763 |
MidiVolume = 1.0; |
MidiVolume = 1.0; |
764 |
GlobalPanLeft = 1.0f; |
GlobalPanLeft = 1.0f; |
765 |
GlobalPanRight = 1.0f; |
GlobalPanRight = 1.0f; |
766 |
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iLastPanRequest = 64; |
767 |
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GlobalTranspose = 0; |
768 |
// set all MIDI controller values to zero |
// set all MIDI controller values to zero |
769 |
memset(ControllerTable, 0x00, 129); |
memset(ControllerTable, 0x00, 129); |
770 |
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// reset all FX Send levels |
771 |
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for ( |
772 |
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std::vector<FxSend*>::iterator iter = fxSends.begin(); |
773 |
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iter != fxSends.end(); iter++ |
774 |
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) { |
775 |
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(*iter)->Reset(); |
776 |
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} |
777 |
} |
} |
778 |
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|
779 |
/** |
/** |
790 |
* current audio cycle |
* current audio cycle |
791 |
*/ |
*/ |
792 |
void EngineChannel::ImportEvents(uint Samples) { |
void EngineChannel::ImportEvents(uint Samples) { |
793 |
|
// import events from pure software MIDI "devices" |
794 |
|
// (e.g. virtual keyboard in instrument editor) |
795 |
|
{ |
796 |
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const int FragmentPos = 0; // randomly chosen, we don't care about jitter for virtual MIDI devices |
797 |
|
Event event = pEngine->pEventGenerator->CreateEvent(FragmentPos); |
798 |
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VirtualMidiDevice::event_t devEvent; // the event format we get from the virtual MIDI device |
799 |
|
// as we're going to (carefully) write some status to the |
800 |
|
// synchronized struct, we cast away the const |
801 |
|
ArrayList<VirtualMidiDevice*>& devices = |
802 |
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const_cast<ArrayList<VirtualMidiDevice*>&>(virtualMidiDevicesReader_AudioThread.Lock()); |
803 |
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// iterate through all virtual MIDI devices |
804 |
|
for (int i = 0; i < devices.size(); i++) { |
805 |
|
VirtualMidiDevice* pDev = devices[i]; |
806 |
|
// I think we can simply flush the whole FIFO(s), the user shouldn't be so fast ;-) |
807 |
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while (pDev->GetMidiEventFromDevice(devEvent)) { |
808 |
|
event.Type = |
809 |
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(devEvent.Type == VirtualMidiDevice::EVENT_TYPE_NOTEON) ? |
810 |
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Event::type_note_on : Event::type_note_off; |
811 |
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event.Param.Note.Key = devEvent.Key; |
812 |
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event.Param.Note.Velocity = devEvent.Velocity; |
813 |
|
event.pEngineChannel = this; |
814 |
|
// copy event to internal event list |
815 |
|
if (pEvents->poolIsEmpty()) { |
816 |
|
dmsg(1,("Event pool emtpy!\n")); |
817 |
|
goto exitVirtualDevicesLoop; |
818 |
|
} |
819 |
|
*pEvents->allocAppend() = event; |
820 |
|
} |
821 |
|
} |
822 |
|
} |
823 |
|
exitVirtualDevicesLoop: |
824 |
|
virtualMidiDevicesReader_AudioThread.Unlock(); |
825 |
|
|
826 |
|
// import events from the regular MIDI devices |
827 |
RingBuffer<Event,false>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
RingBuffer<Event,false>::NonVolatileReader eventQueueReader = pEventQueue->get_non_volatile_reader(); |
828 |
Event* pEvent; |
Event* pEvent; |
829 |
while (true) { |
while (true) { |
861 |
if (pEngine && pEngine->pAudioOutputDevice) { |
if (pEngine && pEngine->pAudioOutputDevice) { |
862 |
// fallback to render directly to the AudioOutputDevice's buffer |
// fallback to render directly to the AudioOutputDevice's buffer |
863 |
pChannelRight = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelRight); |
pChannelRight = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelRight); |
864 |
} else pChannelRight = NULL; |
} else pChannelRight = NULL; |
865 |
} |
} |
866 |
} |
} |
867 |
for (int i = 0; i < fxSends.size(); i++) delete fxSends[i]; |
for (int i = 0; i < fxSends.size(); i++) delete fxSends[i]; |
869 |
if (pEngine) pEngine->Enable(); |
if (pEngine) pEngine->Enable(); |
870 |
} |
} |
871 |
|
|
872 |
|
void EngineChannel::Connect(VirtualMidiDevice* pDevice) { |
873 |
|
// double buffer ... double work ... |
874 |
|
{ |
875 |
|
ArrayList<VirtualMidiDevice*>& devices = virtualMidiDevices.GetConfigForUpdate(); |
876 |
|
devices.add(pDevice); |
877 |
|
} |
878 |
|
{ |
879 |
|
ArrayList<VirtualMidiDevice*>& devices = virtualMidiDevices.SwitchConfig(); |
880 |
|
devices.add(pDevice); |
881 |
|
} |
882 |
|
} |
883 |
|
|
884 |
|
void EngineChannel::Disconnect(VirtualMidiDevice* pDevice) { |
885 |
|
// double buffer ... double work ... |
886 |
|
{ |
887 |
|
ArrayList<VirtualMidiDevice*>& devices = virtualMidiDevices.GetConfigForUpdate(); |
888 |
|
devices.remove(pDevice); |
889 |
|
} |
890 |
|
{ |
891 |
|
ArrayList<VirtualMidiDevice*>& devices = virtualMidiDevices.SwitchConfig(); |
892 |
|
devices.remove(pDevice); |
893 |
|
} |
894 |
|
} |
895 |
|
|
896 |
float EngineChannel::Volume() { |
float EngineChannel::Volume() { |
897 |
return GlobalVolume; |
return GlobalVolume; |
898 |
} |
} |
902 |
bStatusChanged = true; // status of engine channel has changed, so set notify flag |
bStatusChanged = true; // status of engine channel has changed, so set notify flag |
903 |
} |
} |
904 |
|
|
905 |
|
float EngineChannel::Pan() { |
906 |
|
return float(iLastPanRequest - 64) / 64.0f; |
907 |
|
} |
908 |
|
|
909 |
|
void EngineChannel::Pan(float f) { |
910 |
|
int iMidiPan = int(f * 64.0f) + 64; |
911 |
|
if (iMidiPan > 127) iMidiPan = 127; |
912 |
|
else if (iMidiPan < 0) iMidiPan = 0; |
913 |
|
GlobalPanLeft = Engine::PanCurve[128 - iMidiPan]; |
914 |
|
GlobalPanRight = Engine::PanCurve[iMidiPan]; |
915 |
|
iLastPanRequest = iMidiPan; |
916 |
|
} |
917 |
|
|
918 |
uint EngineChannel::Channels() { |
uint EngineChannel::Channels() { |
919 |
return 2; |
return 2; |
920 |
} |
} |