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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) 2009-2010 Christian Schoenebeck and Grigor Iliev * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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|
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#ifndef __LS_MIDIKEYBOARDMANAGER_H__ |
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#define __LS_MIDIKEYBOARDMANAGER_H__ |
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|
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#include "Event.h" |
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#include "Stream.h" |
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#include "../../EventListeners.h" |
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#include "../../common/Pool.h" |
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#include "../../common/global_private.h" |
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|
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namespace LinuxSampler { |
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|
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/** |
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* This class is used as a listener, which is notified |
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* when MIDI keyboard events occur like note on, note off, etc. |
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* Note that all events are triggered even when the channel is muted |
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*/ |
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class MidiKeyboardListener { |
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public: |
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/** Called before the engine start processing the note on event */ |
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virtual void PreProcessNoteOn(uint8_t key, uint8_t velocity) = 0; |
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|
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/** Called after the engine has processed the note on event */ |
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virtual void PostProcessNoteOn(uint8_t key, uint8_t velocity) = 0; |
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|
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/** Called before the engine start processing the note off event */ |
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virtual void PreProcessNoteOff(uint8_t key, uint8_t velocity) = 0; |
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|
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/** Called after the engine has processed the note off event */ |
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virtual void PostProcessNoteOff(uint8_t key, uint8_t velocity) = 0; |
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|
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/** Called before the engine start processing the sustain pedal up event */ |
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virtual void PreProcessSustainPedalUp() = 0; |
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|
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/** Called after the engine has processed the sustain pedal up event */ |
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virtual void PostProcessSustainPedalUp() = 0; |
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|
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/** Called before the engine start processing the sustain pedal down event */ |
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virtual void PreProcessSustainPedalDown() = 0; |
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|
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/** Called after the engine has processed the sustain pedal down event */ |
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virtual void PostProcessSustainPedalDown() = 0; |
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|
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/** Called before the engine start processing the sostenuto pedal up event */ |
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virtual void PreProcessSostenutoPedalUp() = 0; |
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|
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/** Called after the engine has processed the sostenuto pedal up event */ |
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virtual void PostProcessSostenutoPedalUp() = 0; |
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|
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/** Called before the engine start processing the sostenuto pedal down event */ |
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virtual void PreProcessSostenutoPedalDown() = 0; |
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|
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/** Called after the engine has processed the sostenuto pedal down event */ |
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virtual void PostProcessSostenutoPedalDown() = 0; |
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}; |
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|
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/** |
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* This class exists as convenience for creating listener objects. |
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* The methods in this class are empty. |
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*/ |
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class MidiKeyboardAdapter : public MidiKeyboardListener { |
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public: |
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virtual void PreProcessNoteOn(uint8_t key, uint8_t velocity) { } |
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virtual void PostProcessNoteOn(uint8_t key, uint8_t velocity) { } |
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virtual void PreProcessNoteOff(uint8_t key, uint8_t velocity) { } |
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virtual void PostProcessNoteOff(uint8_t key, uint8_t velocity) { } |
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virtual void PreProcessSustainPedalUp() { } |
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virtual void PostProcessSustainPedalUp() { } |
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virtual void PreProcessSustainPedalDown() { } |
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virtual void PostProcessSustainPedalDown() { } |
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virtual void PreProcessSostenutoPedalUp() { } |
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virtual void PostProcessSostenutoPedalUp() { } |
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virtual void PreProcessSostenutoPedalDown() { } |
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virtual void PostProcessSostenutoPedalDown() { } |
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}; |
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|
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/** |
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* This is the base class for class MidiKeyboardManager::MidiKey. It is |
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* not intended to be instantiated directly. Instead it just defines |
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* the part of class MidiKey which is not dependant on a C++ template |
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* parameter. |
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*/ |
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class MidiKeyBase { |
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public: |
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bool KeyPressed; ///< Is true if the respective MIDI key is currently pressed. |
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bool Active; ///< If the key contains active voices. |
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bool ReleaseTrigger; ///< If we have to launch release triggered voice(s) when the key is released |
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Pool<uint>::Iterator itSelf; ///< hack to allow fast deallocation of the key from the list of active keys |
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RTList<Event>* pEvents; ///< Key specific events (only Note-on, Note-off and sustain pedal currently) |
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int VoiceTheftsQueued; ///< Amount of voices postponed due to shortage of voices. |
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uint32_t* pRoundRobinIndex; ///< For the round robin dimension: current articulation for this key, will be incremented for each note on |
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uint8_t Velocity; ///< Latest Note-on velocity for this key |
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unsigned long NoteOnTime; ///< Time for latest Note-on event for this key |
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float Volume; ///< Individual volume level for this MIDI key (usually 1.0f unless Roland GS NRPN 0x1Ann was received, nn reflecting the note number, see EngineBase::ProcessHardcodedControllers()) |
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float PanLeft; ///< Individual volume balance (left channel coefficient) for this MIDI key (usually 1.0f unless Roland GS NRPN 0x1Cnn was received, nn reflecting the note number, see EngineBase::ProcessHardcodedControllers()) |
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float PanRight; ///< Individual volume balance (right channel coefficient) for this MIDI key (usually 1.0f unless Roland GS NRPN 0x1Cnn was received, nn reflecting the note number, see EngineBase::ProcessHardcodedControllers()) |
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optional<float> ReverbSend; ///< Optional individual reverb send level for this MIDI key (usually not set, unless Roland GS NRPN 0x1Dnn was received, nn reflecting the note number, see EngineBase::ProcessHardcodedControllers()) |
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optional<float> ChorusSend; ///< Optional individual chorus send level for this MIDI key (usually not set, unless Roland GS NRPN 0x1Enn was received, nn reflecting the note number, see EngineBase::ProcessHardcodedControllers()) |
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}; |
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|
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class MidiKeyboardManagerBase { |
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public: |
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Pool<uint>* pActiveKeys; ///< Holds all keys in it's allocation list with active voices. |
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bool SoloMode; ///< in Solo Mode we only play one voice (group) at a time |
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int SoloKey; ///< Currently 'active' solo key, that is the key to which the currently sounding voice belongs to (only if SoloMode is enabled) |
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bool SustainPedal; ///< true if sustain pedal is down |
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bool SostenutoPedal; ///< true if sostenuto pedal is down |
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int SostenutoKeys[128]; |
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int SostenutoKeyCount; |
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uint32_t RoundRobinIndexes[128]; |
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int8_t KeyDown[128]; ///< True if the respective key is currently pressed down. Currently only used as built-in instrument script array variable %KEY_DOWN. It is currently not used by the sampler for any other purpose. |
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}; |
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|
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template <class V> |
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class MidiKeyboardManager : public MidiKeyboardManagerBase { |
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public: |
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/** @brief Voice Stealing Algorithms |
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* |
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* Enumeration of all possible voice stealing algorithms. |
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*/ |
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enum voice_steal_algo_t { |
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voice_steal_algo_none, ///< Voice stealing disabled. |
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voice_steal_algo_oldestvoiceonkey, ///< Try to kill the oldest voice from same key where the new voice should be spawned. |
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voice_steal_algo_oldestkey ///< Try to kill the oldest voice from the oldest active key. |
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}; |
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|
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|
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/** @brief MIDI key runtime informations |
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* |
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* Reflects runtime informations for one MIDI key. |
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*/ |
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class MidiKey : public MidiKeyBase { |
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public: |
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RTList<V>* pActiveVoices; ///< Contains the active voices associated with the MIDI key. |
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|
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MidiKey() { |
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pActiveVoices = NULL; |
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KeyPressed = false; |
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Active = false; |
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ReleaseTrigger = false; |
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pEvents = NULL; |
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VoiceTheftsQueued = 0; |
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Volume = 1.0f; |
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PanLeft = 1.0f; |
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PanRight = 1.0f; |
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} |
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|
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void Reset() { |
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if (pActiveVoices) { |
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RTListVoiceIterator itVoice = pActiveVoices->first(); |
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RTListVoiceIterator itVoicesEnd = pActiveVoices->end(); |
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for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
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itVoice->VoiceFreed(); |
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} |
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pActiveVoices->clear(); |
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} |
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if (pEvents) pEvents->clear(); |
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KeyPressed = false; |
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Active = false; |
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ReleaseTrigger = false; |
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itSelf = Pool<uint>::Iterator(); |
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VoiceTheftsQueued = 0; |
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Volume = 1.0f; |
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PanLeft = 1.0f; |
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PanRight = 1.0f; |
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ReverbSend = optional<float>::nothing; |
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ChorusSend = optional<float>::nothing; |
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} |
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}; |
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|
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typedef typename RTList<V>::Iterator RTListVoiceIterator; |
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typedef typename Pool<V>::Iterator PoolVoiceIterator; |
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|
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/** |
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* Override this class to iterate through all active keys/voices |
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* using ProcessActiveVoices() method. |
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*/ |
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class VoiceHandler { |
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public: |
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/** |
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* @returns true if the voices on the specified key should be processed |
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* adn false to cancel the processing of the active voices for the |
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* specified key |
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*/ |
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virtual bool Process(MidiKey* pMidiKey) = 0; |
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|
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virtual void Process(RTListVoiceIterator& itVoice) = 0; |
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}; |
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|
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class VoiceHandlerBase : public VoiceHandler { |
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public: |
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virtual bool Process(MidiKey* pMidiKey) { return true; } |
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virtual void Process(RTListVoiceIterator& itVoice) { } |
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}; |
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|
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MidiKey* pMIDIKeyInfo; ///< Contains all active voices sorted by MIDI key number and other informations to the respective MIDI key |
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|
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MidiKeyboardManager() { |
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pMIDIKeyInfo = new MidiKey[128]; |
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pActiveKeys = new Pool<uint>(128); |
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SoloMode = false; |
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SustainPedal = false; |
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SostenutoPedal = false; |
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for (int i = 0 ; i < 128 ; i++) { |
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RoundRobinIndexes[i] = 0; |
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KeyDown[i] = false; |
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|
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// by default use one counter for each key (the |
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// gig engine will change this to one counter per |
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// region) |
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pMIDIKeyInfo[i].pRoundRobinIndex = &RoundRobinIndexes[i]; |
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} |
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} |
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|
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virtual ~MidiKeyboardManager() { |
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listeners.RemoveAllListeners(); |
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if (pActiveKeys) delete pActiveKeys; |
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if (pMIDIKeyInfo) delete[] pMIDIKeyInfo; |
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} |
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|
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void Reset() { |
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SoloKey = -1; // no solo key active yet |
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|
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// reset key info |
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for (uint i = 0; i < 128; i++) { |
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pMIDIKeyInfo[i].Reset(); |
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KeyDown[i] = false; |
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} |
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|
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// free all active keys |
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pActiveKeys->clear(); |
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} |
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|
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void AllocateActiveVoices(Pool<V>* pVoicePool) { |
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DeleteActiveVoices(); |
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|
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for (uint i = 0; i < 128; i++) { |
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pMIDIKeyInfo[i].pActiveVoices = new RTList<V>(pVoicePool); |
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} |
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} |
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|
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void DeleteActiveVoices() { |
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for (uint i = 0; i < 128; i++) { |
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if (pMIDIKeyInfo[i].pActiveVoices) { |
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delete pMIDIKeyInfo[i].pActiveVoices; |
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pMIDIKeyInfo[i].pActiveVoices = NULL; |
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} |
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} |
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} |
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|
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void AllocateEvents(Pool<Event>* pEventPool) { |
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DeleteEvents(); |
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|
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for (uint i = 0; i < 128; i++) { |
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pMIDIKeyInfo[i].pEvents = new RTList<Event>(pEventPool); |
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} |
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} |
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|
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void DeleteEvents() { |
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for (uint i = 0; i < 128; i++) { |
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if (pMIDIKeyInfo[i].pEvents) { |
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delete pMIDIKeyInfo[i].pEvents; |
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pMIDIKeyInfo[i].pEvents = NULL; |
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} |
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} |
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} |
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|
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void ClearAllActiveKeyEvents() { |
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RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
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RTList<uint>::Iterator end = pActiveKeys->end(); |
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for(; iuiKey != end; ++iuiKey) { |
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pMIDIKeyInfo[*iuiKey].pEvents->clear(); // free all events on the key |
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} |
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} |
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|
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/** |
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* Removes the given voice from the MIDI key's list of active voices. |
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* This method will be called when a voice went inactive, e.g. because |
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* it finished to playback its sample, finished its release stage or |
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* just was killed. |
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* |
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* @param itVoice - points to the voice to be freed |
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*/ |
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void FreeVoice(PoolVoiceIterator& itVoice) { |
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if (itVoice) { |
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MidiKey* pKey = &pMIDIKeyInfo[itVoice->MIDIKey]; |
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|
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// if the sample and dimension region belong to an |
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// instrument that is unloaded, tell the disk thread to |
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// release them |
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if (itVoice->Orphan) { |
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if(itVoice->pDiskThread != NULL) { |
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itVoice->pDiskThread->OrderDeletionOfRegion(itVoice->GetRegion()); |
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} |
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} |
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|
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// free the voice object |
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pKey->pActiveVoices->free(itVoice); |
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} |
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else std::cerr << "Couldn't release voice! (!itVoice)\n" << std::flush; |
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} |
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|
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/** |
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* Called when there's no more voice left on a key, this call will |
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* update the key info respectively. |
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* |
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* @param pEngineChannel - engine channel on which this event occured on |
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* @param pKey - key which is now inactive |
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*/ |
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void FreeKey(MidiKey* pKey) { |
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if (pKey->pActiveVoices->isEmpty()) { |
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pKey->Active = false; |
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pActiveKeys->free(pKey->itSelf); // remove key from list of active keys |
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pKey->itSelf = RTList<uint>::Iterator(); |
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pKey->ReleaseTrigger = false; |
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pKey->pEvents->clear(); |
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dmsg(3,("Key has no more voices now\n")); |
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} |
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else dmsg(1,("MidiKeyboardManager: Oops, tried to free a key which contains voices.\n")); |
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} |
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|
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/** |
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* Free all keys which have no active voices left |
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*/ |
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void FreeAllInactiveKyes() { |
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RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
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RTList<uint>::Iterator end = pActiveKeys->end(); |
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while (iuiKey != end) { // iterate through all active keys |
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MidiKey* pKey = &pMIDIKeyInfo[*iuiKey]; |
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++iuiKey; |
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if (pKey->pActiveVoices->isEmpty()) FreeKey(pKey); |
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#if CONFIG_DEVMODE |
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else { // just a sanity check for debugging |
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RTListVoiceIterator itVoice = pKey->pActiveVoices->first(); |
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RTListVoiceIterator = pKey->pActiveVoices->end(); |
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for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
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if (itVoice->itKillEvent) { |
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dmsg(1,("gig::Engine: ERROR, killed voice survived !!!\n")); |
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} |
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} |
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} |
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#endif // CONFIG_DEVMODE |
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} |
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} |
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|
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int StealVoice ( |
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Pool<Event>::Iterator& itNoteOnEvent, |
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RTListVoiceIterator* LastStolenVoice, |
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RTList<uint>::Iterator* LastStolenKey |
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) { |
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RTListVoiceIterator itSelectedVoice; |
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|
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// Select one voice for voice stealing |
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switch (CONFIG_VOICE_STEAL_ALGO) { |
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|
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// try to pick the oldest voice on the key where the new |
| 380 |
// voice should be spawned, if there is no voice on that |
| 381 |
// key, or no voice left to kill, then procceed with |
| 382 |
// 'oldestkey' algorithm |
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case voice_steal_algo_oldestvoiceonkey: { |
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MidiKey* pSelectedKey = &pMIDIKeyInfo[itNoteOnEvent->Param.Note.Key]; |
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itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
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// proceed iterating if voice was created in this fragment cycle |
| 387 |
while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; |
| 388 |
// if we haven't found a voice then proceed with algorithm 'oldestkey' |
| 389 |
if (itSelectedVoice && itSelectedVoice->IsStealable()) break; |
| 390 |
} // no break - intentional ! |
| 391 |
|
| 392 |
// try to pick the oldest voice on the oldest active key |
| 393 |
// from the same engine channel |
| 394 |
// (caution: must stay after 'oldestvoiceonkey' algorithm !) |
| 395 |
case voice_steal_algo_oldestkey: { |
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// if we already stole in this fragment, try to proceed on same key |
| 397 |
if (*LastStolenVoice) { |
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itSelectedVoice = *LastStolenVoice; |
| 399 |
do { |
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++itSelectedVoice; |
| 401 |
} while (itSelectedVoice && !itSelectedVoice->IsStealable()); // proceed iterating if voice was created in this fragment cycle |
| 402 |
// found a "stealable" voice ? |
| 403 |
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
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// remember which voice we stole, so we can simply proceed on next voice stealing |
| 405 |
*LastStolenVoice = itSelectedVoice; |
| 406 |
break; // selection succeeded |
| 407 |
} |
| 408 |
} |
| 409 |
// get (next) oldest key |
| 410 |
RTList<uint>::Iterator iuiSelectedKey = (*LastStolenKey) ? ++(*LastStolenKey) : pActiveKeys->first(); |
| 411 |
while (iuiSelectedKey) { |
| 412 |
MidiKey* pSelectedKey = &pMIDIKeyInfo[*iuiSelectedKey]; |
| 413 |
itSelectedVoice = pSelectedKey->pActiveVoices->first(); |
| 414 |
// proceed iterating if voice was created in this fragment cycle |
| 415 |
while (itSelectedVoice && !itSelectedVoice->IsStealable()) ++itSelectedVoice; |
| 416 |
// found a "stealable" voice ? |
| 417 |
if (itSelectedVoice && itSelectedVoice->IsStealable()) { |
| 418 |
// remember which voice on which key we stole, so we can simply proceed on next voice stealing |
| 419 |
*LastStolenKey = iuiSelectedKey; |
| 420 |
*LastStolenVoice = itSelectedVoice; |
| 421 |
break; // selection succeeded |
| 422 |
} |
| 423 |
++iuiSelectedKey; // get next oldest key |
| 424 |
} |
| 425 |
break; |
| 426 |
} |
| 427 |
|
| 428 |
// don't steal anything |
| 429 |
case voice_steal_algo_none: |
| 430 |
default: { |
| 431 |
dmsg(1,("No free voice (voice stealing disabled)!\n")); |
| 432 |
return -1; |
| 433 |
} |
| 434 |
} |
| 435 |
|
| 436 |
if (!itSelectedVoice || !itSelectedVoice->IsStealable()) return -1; |
| 437 |
|
| 438 |
#if CONFIG_DEVMODE |
| 439 |
if (!itSelectedVoice->IsActive()) { |
| 440 |
dmsg(1,("gig::Engine: ERROR, tried to steal a voice which was not active !!!\n")); |
| 441 |
return -1; |
| 442 |
} |
| 443 |
#endif // CONFIG_DEVMODE |
| 444 |
|
| 445 |
// now kill the selected voice |
| 446 |
itSelectedVoice->Kill(itNoteOnEvent); |
| 447 |
|
| 448 |
return 0; |
| 449 |
} |
| 450 |
|
| 451 |
/** |
| 452 |
* Releases all voices. All voices will go into |
| 453 |
* the release stage and thus it might take some time (e.g. dependant to |
| 454 |
* their envelope release time) until they actually die. |
| 455 |
* |
| 456 |
* @param itReleaseEvent - event which caused this releasing of all voices |
| 457 |
*/ |
| 458 |
void ReleaseAllVoices(Pool<Event>::Iterator& itReleaseEvent) { |
| 459 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
| 460 |
while (iuiKey) { |
| 461 |
MidiKey* pKey = &pMIDIKeyInfo[*iuiKey]; |
| 462 |
++iuiKey; |
| 463 |
// append a 'release' event to the key's own event list |
| 464 |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
| 465 |
if (itNewEvent) { |
| 466 |
*itNewEvent = *itReleaseEvent; // copy original event (to the key's event list) |
| 467 |
itNewEvent->Type = Event::type_release; // transform event type |
| 468 |
} |
| 469 |
else dmsg(1,("Event pool emtpy!\n")); |
| 470 |
} |
| 471 |
} |
| 472 |
/** |
| 473 |
* Kill all active voices. |
| 474 |
* @returns The number of voices. |
| 475 |
*/ |
| 476 |
int KillAllVoices(Pool<Event>::Iterator& itKillEvent) { |
| 477 |
int count = 0; |
| 478 |
|
| 479 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
| 480 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
| 481 |
for (; iuiKey != end; ++iuiKey) { // iterate through all active keys |
| 482 |
MidiKey* pKey = &pMIDIKeyInfo[*iuiKey]; |
| 483 |
RTListVoiceIterator itVoice = pKey->pActiveVoices->first(); |
| 484 |
RTListVoiceIterator itVoicesEnd = pKey->pActiveVoices->end(); |
| 485 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
| 486 |
itVoice->Kill(itKillEvent); |
| 487 |
count++; |
| 488 |
} |
| 489 |
} |
| 490 |
|
| 491 |
return count; |
| 492 |
} |
| 493 |
|
| 494 |
/** |
| 495 |
* Kill all voices the *die hard* way. |
| 496 |
* @returns The number of pending stream deletions |
| 497 |
*/ |
| 498 |
int KillAllVoicesImmediately() { |
| 499 |
int iPendingStreamDeletions = 0; |
| 500 |
|
| 501 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
| 502 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
| 503 |
for (; iuiKey != end; ++iuiKey) { // iterate through all active keys |
| 504 |
MidiKey* pKey = &pMIDIKeyInfo[*iuiKey]; |
| 505 |
RTListVoiceIterator itVoice = pKey->pActiveVoices->first(); |
| 506 |
RTListVoiceIterator itVoicesEnd = pKey->pActiveVoices->end(); |
| 507 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
| 508 |
// request a notification from disk thread side for stream deletion |
| 509 |
const Stream::Handle hStream = itVoice->KillImmediately(true); |
| 510 |
if (hStream != Stream::INVALID_HANDLE) { // voice actually used a stream |
| 511 |
iPendingStreamDeletions++; |
| 512 |
} |
| 513 |
// free the voice to the voice pool and update key info |
| 514 |
itVoice->VoiceFreed(); |
| 515 |
FreeVoice(itVoice); |
| 516 |
} |
| 517 |
} |
| 518 |
|
| 519 |
return iPendingStreamDeletions; |
| 520 |
} |
| 521 |
|
| 522 |
/** |
| 523 |
* Mark all currently active voices as "orphans", which means that the regions and |
| 524 |
* samples they use should be released to the instrument manager when the voices die. |
| 525 |
*/ |
| 526 |
void MarkAllActiveVoicesAsOrphans() { |
| 527 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
| 528 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
| 529 |
for (; iuiKey != end; ++iuiKey) { // iterate through all active keys |
| 530 |
MidiKey* pKey = &pMIDIKeyInfo[*iuiKey]; |
| 531 |
RTListVoiceIterator itVoice = pKey->pActiveVoices->first(); |
| 532 |
RTListVoiceIterator itVoicesEnd = pKey->pActiveVoices->end(); |
| 533 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
| 534 |
itVoice->Orphan = true; |
| 535 |
} |
| 536 |
} |
| 537 |
} |
| 538 |
|
| 539 |
void ProcessActiveVoices(VoiceHandler* pVoiceHandler) { |
| 540 |
if (pVoiceHandler == NULL) return; |
| 541 |
|
| 542 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
| 543 |
RTList<uint>::Iterator end = pActiveKeys->end(); |
| 544 |
for (; iuiKey != end; ++iuiKey) { // iterate through all active keys |
| 545 |
MidiKey* pKey = &pMIDIKeyInfo[*iuiKey]; |
| 546 |
if (!pVoiceHandler->Process(pKey)) continue; |
| 547 |
|
| 548 |
RTListVoiceIterator itVoice = pKey->pActiveVoices->first(); |
| 549 |
RTListVoiceIterator itVoicesEnd = pKey->pActiveVoices->end(); |
| 550 |
for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key |
| 551 |
pVoiceHandler->Process(itVoice); |
| 552 |
} |
| 553 |
} |
| 554 |
} |
| 555 |
|
| 556 |
/** |
| 557 |
* Recalculate the pitch of all active voices. |
| 558 |
*/ |
| 559 |
void OnScaleTuningChanged() { |
| 560 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
| 561 |
for (; iuiKey; ++iuiKey) { |
| 562 |
MidiKey* pKey = &pMIDIKeyInfo[*iuiKey]; |
| 563 |
RTListVoiceIterator itVoice = pKey->pActiveVoices->first(); |
| 564 |
for (; itVoice; ++itVoice) { |
| 565 |
itVoice->onScaleTuningChanged(); |
| 566 |
} |
| 567 |
} |
| 568 |
} |
| 569 |
|
| 570 |
void ProcessSustainPedalDown(Pool<Event>::Iterator& itEvent) { |
| 571 |
// Cancel release process of all voices |
| 572 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
| 573 |
for (; iuiKey; ++iuiKey) { |
| 574 |
MidiKey* pKey = &pMIDIKeyInfo[*iuiKey]; |
| 575 |
if (!pKey->KeyPressed) { |
| 576 |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
| 577 |
if (itNewEvent) { |
| 578 |
*itNewEvent = *itEvent; // copy event to the key's own event list |
| 579 |
itNewEvent->Type = Event::type_cancel_release; // transform event type |
| 580 |
} |
| 581 |
else dmsg(1,("Event pool emtpy!\n")); |
| 582 |
} |
| 583 |
} |
| 584 |
} |
| 585 |
|
| 586 |
void ProcessSustainPedalUp(Pool<Event>::Iterator& itEvent) { |
| 587 |
// release voices if their respective key is not pressed |
| 588 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
| 589 |
for (; iuiKey; ++iuiKey) { |
| 590 |
MidiKey* pKey = &pMIDIKeyInfo[*iuiKey]; |
| 591 |
if (!pKey->KeyPressed && ShouldReleaseVoice(*iuiKey)) { |
| 592 |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
| 593 |
if (itNewEvent) { |
| 594 |
*itNewEvent = *itEvent; // copy event to the key's own event list |
| 595 |
itNewEvent->Type = Event::type_release; // transform event type |
| 596 |
} |
| 597 |
else dmsg(1,("Event pool emtpy!\n")); |
| 598 |
} |
| 599 |
} |
| 600 |
} |
| 601 |
|
| 602 |
/** |
| 603 |
* Determines whether the specified voice should be released. |
| 604 |
* |
| 605 |
* @param pEngineChannel - The engine channel on which the voice should be checked |
| 606 |
* @param Key - The key number |
| 607 |
* @returns true if the specified voice should be released, false otherwise. |
| 608 |
*/ |
| 609 |
bool ShouldReleaseVoice(int Key) { |
| 610 |
if (SustainPedal) return false; |
| 611 |
|
| 612 |
if (SostenutoPedal) { |
| 613 |
for (int i = 0; i < SostenutoKeyCount; i++) |
| 614 |
if (Key == SostenutoKeys[i]) return false; |
| 615 |
} |
| 616 |
|
| 617 |
return true; |
| 618 |
} |
| 619 |
|
| 620 |
void ProcessSostenutoPedalDown() { |
| 621 |
SostenutoKeyCount = 0; |
| 622 |
// Remeber the pressed keys |
| 623 |
RTList<uint>::Iterator iuiKey = pActiveKeys->first(); |
| 624 |
for (; iuiKey; ++iuiKey) { |
| 625 |
MidiKey* pKey = &pMIDIKeyInfo[*iuiKey]; |
| 626 |
if (pKey->KeyPressed && SostenutoKeyCount < 128) SostenutoKeys[SostenutoKeyCount++] = *iuiKey; |
| 627 |
} |
| 628 |
} |
| 629 |
|
| 630 |
void ProcessSostenutoPedalUp(Pool<Event>::Iterator& itEvent) { |
| 631 |
// release voices if the damper pedal is up and their respective key is not pressed |
| 632 |
for (int i = 0; i < SostenutoKeyCount; i++) { |
| 633 |
MidiKey* pKey = &pMIDIKeyInfo[SostenutoKeys[i]]; |
| 634 |
if (!pKey->KeyPressed && !SustainPedal) { |
| 635 |
RTList<Event>::Iterator itNewEvent = pKey->pEvents->allocAppend(); |
| 636 |
if (itNewEvent) { |
| 637 |
*itNewEvent = *itEvent; // copy event to the key's own event list |
| 638 |
itNewEvent->Type = Event::type_release; // transform event type |
| 639 |
} |
| 640 |
else dmsg(1,("Event pool emtpy!\n")); |
| 641 |
} |
| 642 |
} |
| 643 |
} |
| 644 |
|
| 645 |
void AddMidiKeyboardListener(MidiKeyboardListener* l) { listeners.AddListener(l); } |
| 646 |
|
| 647 |
void RemoveMidiKeyboardListener(MidiKeyboardListener* l) { listeners.RemoveListener(l); } |
| 648 |
|
| 649 |
protected: |
| 650 |
class Listeners : public MidiKeyboardListener, public ListenerList<MidiKeyboardListener*> { |
| 651 |
public: |
| 652 |
REGISTER_FIRE_EVENT_METHOD_ARG2(PreProcessNoteOn, uint8_t, uint8_t) |
| 653 |
REGISTER_FIRE_EVENT_METHOD_ARG2(PostProcessNoteOn, uint8_t, uint8_t) |
| 654 |
REGISTER_FIRE_EVENT_METHOD_ARG2(PreProcessNoteOff, uint8_t, uint8_t) |
| 655 |
REGISTER_FIRE_EVENT_METHOD_ARG2(PostProcessNoteOff, uint8_t, uint8_t) |
| 656 |
REGISTER_FIRE_EVENT_METHOD(PreProcessSustainPedalUp) |
| 657 |
REGISTER_FIRE_EVENT_METHOD(PostProcessSustainPedalUp) |
| 658 |
REGISTER_FIRE_EVENT_METHOD(PreProcessSustainPedalDown) |
| 659 |
REGISTER_FIRE_EVENT_METHOD(PostProcessSustainPedalDown) |
| 660 |
REGISTER_FIRE_EVENT_METHOD(PreProcessSostenutoPedalUp) |
| 661 |
REGISTER_FIRE_EVENT_METHOD(PostProcessSostenutoPedalUp) |
| 662 |
REGISTER_FIRE_EVENT_METHOD(PreProcessSostenutoPedalDown) |
| 663 |
REGISTER_FIRE_EVENT_METHOD(PostProcessSostenutoPedalDown) |
| 664 |
} listeners; |
| 665 |
}; |
| 666 |
} // namespace LinuxSampler |
| 667 |
|
| 668 |
#endif /* __LS_MIDIKEYBOARDMANAGER_H__ */ |
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