--- linuxsampler/trunk/src/engines/sf2/Voice.h 2009/10/25 22:11:41 2014 +++ linuxsampler/trunk/src/engines/sf2/Voice.h 2009/10/25 22:22:52 2015 @@ -3,7 +3,8 @@ * LinuxSampler - modular, streaming capable sampler * * * * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * - * Copyright (C) 2005 - 2007 Christian Schoenebeck * + * Copyright (C) 2005 - 2009 Christian Schoenebeck * + * Copyright (C) 2009 Grigor Iliev * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * @@ -31,158 +32,75 @@ #include "../../drivers/audio/AudioOutputDevice.h" #include "Stream.h" #include "DiskThread.h" -#include "../gig/EGADSR.h" -#include "../gig/EGDecay.h" #include "../gig/Filter.h" -#include "../common/LFOBase.h" #include "../common/VoiceBase.h" #include "../gig/SynthesisParam.h" -#include "../gig/SmoothVolume.h" - -// include the appropriate (unsigned) triangle LFO implementation -#if CONFIG_UNSIGNED_TRIANG_ALGO == INT_MATH_SOLUTION -# include "../common/LFOTriangleIntMath.h" -#elif CONFIG_UNSIGNED_TRIANG_ALGO == INT_ABS_MATH_SOLUTION -# include "../common/LFOTriangleIntAbsMath.h" -#elif CONFIG_UNSIGNED_TRIANG_ALGO == DI_HARMONIC_SOLUTION -# include "../common/LFOTriangleDiHarmonic.h" -#else -# error "Unknown or no (unsigned) triangle LFO implementation selected!" -#endif - -// include the appropriate (signed) triangle LFO implementation -#if CONFIG_SIGNED_TRIANG_ALGO == INT_MATH_SOLUTION -# include "../common/LFOTriangleIntMath.h" -#elif CONFIG_SIGNED_TRIANG_ALGO == INT_ABS_MATH_SOLUTION -# include "../common/LFOTriangleIntAbsMath.h" -#elif CONFIG_SIGNED_TRIANG_ALGO == DI_HARMONIC_SOLUTION -# include "../common/LFOTriangleDiHarmonic.h" -#else -# error "Unknown or no (signed) triangle LFO implementation selected!" -#endif namespace LinuxSampler { namespace sf2 { class Engine; class EngineChannel; - /// Reflects a MIDI controller - struct midi_ctrl { - uint8_t controller; ///< MIDI control change controller number - uint8_t value; ///< Current MIDI controller value - float fvalue; ///< Transformed / effective value (e.g. volume level or filter cutoff frequency) - }; - - #if CONFIG_UNSIGNED_TRIANG_ALGO == INT_MATH_SOLUTION - typedef LFOTriangleIntMath LFOUnsigned; - #elif CONFIG_UNSIGNED_TRIANG_ALGO == INT_ABS_MATH_SOLUTION - typedef LFOTriangleIntAbsMath LFOUnsigned; - #elif CONFIG_UNSIGNED_TRIANG_ALGO == DI_HARMONIC_SOLUTION - typedef LFOTriangleDiHarmonic LFOUnsigned; - #endif - - #if CONFIG_SIGNED_TRIANG_ALGO == INT_MATH_SOLUTION - typedef LFOTriangleIntMath LFOSigned; - #elif CONFIG_SIGNED_TRIANG_ALGO == INT_ABS_MATH_SOLUTION - typedef LFOTriangleIntAbsMath LFOSigned; - #elif CONFIG_SIGNED_TRIANG_ALGO == DI_HARMONIC_SOLUTION - typedef LFOTriangleDiHarmonic LFOSigned; - #endif - - /** Sf2 Voice + /** SoundFont Voice * - * Renders a voice for the Gigasampler format. + * Renders a voice for the SoundFont format. */ - class Voice : public LinuxSampler::VoiceBaseImpl< ::sf2::Region, ::sf2::Sample> { + class Voice : public LinuxSampler::VoiceBase { public: - typedef LinuxSampler::gig::EGADSR EGADSR; // TODO: remove - typedef LinuxSampler::gig::EGDecay EGDecay; // TODO: remove - typedef LinuxSampler::gig::SmoothVolume SmoothVolume; // TODO: remove - typedef LinuxSampler::gig::SynthesisParam SynthesisParam; // TODO: remove - typedef LinuxSampler::gig::Loop Loop; // TODO: remove - - // Attributes - type_t Type; ///< Voice Type - int MIDIKey; ///< MIDI key number of the key that triggered the voice - uint KeyGroup; - DiskThread* pDiskThread; ///< Pointer to the disk thread, to be able to order a disk stream and later to delete the stream again - - // Methods Voice(); virtual ~Voice(); - void Kill(Pool::Iterator& itKillEvent); - void Render(uint Samples); - void Reset(); void SetOutput(AudioOutputDevice* pAudioOutputDevice); void SetEngine(LinuxSampler::Engine* pEngine); - int Trigger(EngineChannel* pEngineChannel, Pool::Iterator& itNoteOnEvent, int PitchBend, ::sf2::Region* pRegion, type_t VoiceType, int iKeyGroup); - inline bool IsActive() { return PlaybackState; } - inline bool IsStealable() { return !itKillEvent && PlaybackState >= playback_state_ram; } - void UpdatePortamentoPos(Pool::Iterator& itNoteOffEvent); - //private: + protected: + virtual SampleInfo GetSampleInfo(); + virtual RegionInfo GetRegionInfo(); + virtual InstrumentInfo GetInstrumentInfo(); + virtual double CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity); + virtual AbstractEngine* GetEngine() { return (AbstractEngine*)pEngine; } + virtual double GetEG1ControllerValue(uint8_t MIDIKeyVelocity); + virtual EGInfo CalculateEG1ControllerInfluence(double eg1ControllerValue); + virtual double GetEG2ControllerValue(uint8_t MIDIKeyVelocity); + virtual EGInfo CalculateEG2ControllerInfluence(double eg2ControllerValue); + virtual void InitLFO1(); + virtual void InitLFO2(); + virtual void InitLFO3(); + virtual float CalculateCutoffBase(uint8_t MIDIKeyVelocity); + virtual float CalculateFinalCutoff(float cutoffBase); + virtual uint8_t GetVCFCutoffCtrl(); + virtual uint8_t GetVCFResonanceCtrl(); + virtual void ProcessCCEvent(RTList::Iterator& itEvent); + virtual void ProcessCutoffEvent(RTList::Iterator& itEvent); + virtual double GetVelocityAttenuation(uint8_t MIDIKeyVelocity); + virtual double GetVelocityRelease(uint8_t MIDIKeyVelocity); + virtual double GetSampleAttenuation(); + + private: + public: // FIXME: just made public for debugging (sanity check in Engine::RenderAudio()), should be changed to private before the final release // Attributes - EngineChannel* pEngineChannel; Engine* pEngine; ///< Pointer to the sampler engine, to be able to access the event lists. - float VolumeLeft; ///< Left channel volume. This factor is calculated when the voice is triggered and doesn't change after that. - float VolumeRight; ///< Right channel volume. This factor is calculated when the voice is triggered and doesn't change after that. - SmoothVolume CrossfadeSmoother; ///< Crossfade volume, updated by crossfade CC events - SmoothVolume VolumeSmoother; ///< Volume, updated by CC 7 (volume) events - SmoothVolume PanLeftSmoother; ///< Left channel volume, updated by CC 10 (pan) events - SmoothVolume PanRightSmoother; ///< Right channel volume, updated by CC 10 (pan) events - double Pos; ///< Current playback position in sample - float PitchBase; ///< Basic pitch depth, stays the same for the whole life time of the voice - float PitchBend; ///< Current pitch value of the pitchbend wheel - float PitchBendRange; ///< The pitch range of the pitchbend wheel, value is in cents / 8192 - float CutoffBase; ///< Cutoff frequency before control change, EG and LFO are applied - ::sf2::Sample* pSample; ///< Pointer to the sample to be played back - bool Orphan; ///< true if this voice is playing a sample from an instrument that is unloaded. When the voice dies, the sample (and dimension region) will be handed back to the instrument resource manager. - playback_state_t PlaybackState; ///< When a sample will be triggered, it will be first played from RAM cache and after a couple of sample points it will switch to disk streaming and at the end of a disk stream we have to add null samples, so the interpolator can do it's work correctly - bool DiskVoice; ///< If the sample is very short it completely fits into the RAM cache and doesn't need to be streamed from disk, in that case this flag is set to false - Stream::reference_t DiskStreamRef; ///< Reference / link to the disk stream - int RealSampleWordsLeftToRead; ///< Number of samples left to read, not including the silence added for the interpolator - unsigned long MaxRAMPos; ///< The upper allowed limit (not actually the end) in the RAM sample cache, after that point it's not safe to chase the interpolator another time over over the current cache position, instead we switch to disk then. - bool RAMLoop; ///< If this voice has a loop defined which completely fits into the cached RAM part of the sample, in this case we handle the looping within the voice class, else if the loop is located in the disk stream part, we let the disk stream handle the looping //uint LoopCyclesLeft; ///< In case there is a RAMLoop and it's not an endless loop; reflects number of loop cycles left to be passed - uint Delay; ///< Number of sample points the rendering process of this voice should be delayed (jitter correction), will be set to 0 after the first audio fragment cycle - EGADSR EG1; ///< Envelope Generator 1 (Amplification) - EGADSR EG2; ///< Envelope Generator 2 (Filter cutoff frequency) - EGDecay EG3; ///< Envelope Generator 3 (Pitch) - midi_ctrl VCFCutoffCtrl; - midi_ctrl VCFResonanceCtrl; - LFOUnsigned* pLFO1; ///< Low Frequency Oscillator 1 (Amplification) - LFOUnsigned* pLFO2; ///< Low Frequency Oscillator 2 (Filter cutoff frequency) - LFOSigned* pLFO3; ///< Low Frequency Oscillator 3 (Pitch) - bool bLFO1Enabled; ///< Should we use the Amplitude LFO for this voice? - bool bLFO2Enabled; ///< Should we use the Filter Cutoff LFO for this voice? - bool bLFO3Enabled; ///< Should we use the Pitch LFO for this voice? - Pool::Iterator itTriggerEvent; ///< First event on the key's list the voice should process (only needed for the first audio fragment in which voice was triggered, after that it will be set to NULL). - //public: // FIXME: just made public for debugging (sanity check in Engine::RenderAudio()), should be changed to private before the final release - Pool::Iterator itKillEvent; ///< Event which caused this voice to be killed - //private: - int SynthesisMode; - float fFinalCutoff; - float fFinalResonance; - SynthesisParam finalSynthesisParameters; - Loop loop; // Static Methods static float CalculateFilterCutoffCoeff(); // Methods - Stream::Handle KillImmediately(bool bRequestNotification = false); void ProcessEvents(uint Samples); - void Synthesize(uint Samples, sample_t* pSrc, uint Skip); - void processTransitionEvents(RTList::Iterator& itEvent, uint End); - void processCCEvents(RTList::Iterator& itEvent, uint End); - void processPitchEvent(RTList::Iterator& itEvent); void processCrossFadeEvent(RTList::Iterator& itEvent); - void processCutoffEvent(RTList::Iterator& itEvent); - void processResonanceEvent(RTList::Iterator& itEvent); - inline float Constrain(float ValueToCheck, float Min, float Max) { - if (ValueToCheck > Max) ValueToCheck = Max; - else if (ValueToCheck < Min) ValueToCheck = Min; - return ValueToCheck; + EngineChannel* GetSf2EngineChannel(); + + protected: + virtual uint8_t CrossfadeAttenuation(uint8_t& CrossfadeControllerValue) { + /*uint8_t c = std::max(CrossfadeControllerValue, pRegion->AttenuationControllerThreshold); + c = (!pRegion->Crossfade.out_end) ? c // 0,0,0,0 means no crossfade defined + : (c < pRegion->Crossfade.in_end) ? + ((c <= pRegion->Crossfade.in_start) ? 0 + : 127 * (c - pRegion->Crossfade.in_start) / (pRegion->Crossfade.in_end - pRegion->Crossfade.in_start)) + : (c <= pRegion->Crossfade.out_start) ? 127 + : (c < pRegion->Crossfade.out_end) ? 127 * (pRegion->Crossfade.out_end - c) / (pRegion->Crossfade.out_end - pRegion->Crossfade.out_start) + : 0; + return pRegion->InvertAttenuationController ? 127 - c : c;*/ // TODO: ^^^ + return 0; } };