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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 - 2009 Christian Schoenebeck * |
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* Copyright (C) 2009 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_GIG_VOICE_H__ |
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#define __LS_GIG_VOICE_H__ |
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|
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#include "../../common/global_private.h" |
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|
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#include <gig.h> |
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|
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#include "../../common/RTMath.h" |
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#include "../../common/Pool.h" |
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#include "../../drivers/audio/AudioOutputDevice.h" |
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#include "Stream.h" |
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#include "DiskThread.h" |
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#include "EGADSR.h" |
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#include "EGDecay.h" |
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#include "Filter.h" |
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#include "../common/VoiceBase.h" |
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#include "SynthesisParam.h" |
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#include "SmoothVolume.h" |
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|
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namespace LinuxSampler { namespace gig { |
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class Engine; |
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class EngineChannel; |
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|
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/** Gig Voice |
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* |
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* Renders a voice for the Gigasampler format. |
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*/ |
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class Voice : public LinuxSampler::VoiceBase<EngineChannel, ::gig::DimensionRegion, ::gig::Sample, DiskThread> { |
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public: |
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Voice(); |
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virtual ~Voice(); |
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void SetOutput(AudioOutputDevice* pAudioOutputDevice); |
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void SetEngine(LinuxSampler::Engine* pEngine); |
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|
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protected: |
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virtual SampleInfo GetSampleInfo(); |
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virtual RegionInfo GetRegionInfo(); |
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virtual InstrumentInfo GetInstrumentInfo(); |
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virtual double CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity); |
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virtual AbstractEngine* GetEngine() { return (AbstractEngine*)pEngine; } |
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virtual double GetEG1ControllerValue(uint8_t MIDIKeyVelocity); |
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virtual EGInfo CalculateEG1ControllerInfluence(double eg1ControllerValue); |
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virtual double GetEG2ControllerValue(uint8_t MIDIKeyVelocity); |
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virtual EGInfo CalculateEG2ControllerInfluence(double eg2ControllerValue); |
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virtual void InitLFO1(); |
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virtual void InitLFO2(); |
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virtual void InitLFO3(); |
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virtual float CalculateCutoffBase(uint8_t MIDIKeyVelocity); |
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virtual float CalculateFinalCutoff(float cutoffBase); |
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virtual uint8_t GetVCFCutoffCtrl(); |
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virtual uint8_t GetVCFResonanceCtrl(); |
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virtual void ProcessCCEvent(RTList<Event>::Iterator& itEvent); |
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virtual void ProcessCutoffEvent(RTList<Event>::Iterator& itEvent); |
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virtual double GetVelocityAttenuation(uint8_t MIDIKeyVelocity); |
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virtual double GetVelocityRelease(uint8_t MIDIKeyVelocity); |
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virtual double GetSampleAttenuation(); |
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|
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private: |
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public: // FIXME: just made public for debugging (sanity check in Engine::RenderAudio()), should be changed to private before the final release |
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// Attributes |
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Engine* pEngine; ///< Pointer to the sampler engine, to be able to access the event lists. |
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//uint LoopCyclesLeft; ///< In case there is a RAMLoop and it's not an endless loop; reflects number of loop cycles left to be passed |
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|
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// Static Methods |
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static float CalculateFilterCutoffCoeff(); |
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|
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// Methods |
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void ProcessEvents(uint Samples); |
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void processCrossFadeEvent(RTList<Event>::Iterator& itEvent); |
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|
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EngineChannel* GetGigEngineChannel(); |
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|
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protected: |
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virtual uint8_t CrossfadeAttenuation(uint8_t& CrossfadeControllerValue) { |
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uint8_t c = std::max(CrossfadeControllerValue, pRegion->AttenuationControllerThreshold); |
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c = (!pRegion->Crossfade.out_end) ? c /* 0,0,0,0 means no crossfade defined */ |
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: (c < pRegion->Crossfade.in_end) ? |
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((c <= pRegion->Crossfade.in_start) ? 0 |
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: 127 * (c - pRegion->Crossfade.in_start) / (pRegion->Crossfade.in_end - pRegion->Crossfade.in_start)) |
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: (c <= pRegion->Crossfade.out_start) ? 127 |
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: (c < pRegion->Crossfade.out_end) ? 127 * (pRegion->Crossfade.out_end - c) / (pRegion->Crossfade.out_end - pRegion->Crossfade.out_start) |
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: 0; |
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return pRegion->InvertAttenuationController ? 127 - c : c; |
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} |
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|
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inline float Constrain(float ValueToCheck, float Min, float Max) { |
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if (ValueToCheck > Max) ValueToCheck = Max; |
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else if (ValueToCheck < Min) ValueToCheck = Min; |
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return ValueToCheck; |
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} |
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}; |
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|
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}} // namespace LinuxSampler::gig |
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|
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#endif // __LS_GIG_VOICE_H__ |
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