engines/sf2/Voice.h

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *   Copyright (C) 2005 - 2008 Christian Schoenebeck                       *
 *   Copyright (C) 2009 - 2011 Christian Schoenebeck and 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  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#ifndef __LS_SF2_VOICE_H__
#define __LS_SF2_VOICE_H__

#include "../../common/global_private.h"

#include "../../common/RTMath.h"
#include "../../common/Pool.h"
#include "../../drivers/audio/AudioOutputDevice.h"
#include "Stream.h"
#include "DiskThread.h"
#include "../gig/EGADSR.h"
#include "../gig/Filter.h"
#include "../common/VoiceBase.h"
#include "../gig/SynthesisParam.h"
#include "../sfz/EGADSR.h"

namespace LinuxSampler { namespace sf2 {
    class Engine;
    class EngineChannel;

    /** SoundFont Voice
     *
     * Renders a voice for the SoundFont format.
     */
    class Voice : public LinuxSampler::VoiceBase<EngineChannel, ::sf2::Region, ::sf2::Sample, DiskThread> {
        public:
            Voice();
            virtual ~Voice();
            void SetOutput(AudioOutputDevice* pAudioOutputDevice);
            void SetEngine(LinuxSampler::Engine* pEngine);

        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 void             TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity);
            virtual double           GetEG2ControllerValue(uint8_t MIDIKeyVelocity);
            virtual EGInfo           CalculateEG2ControllerInfluence(double eg2ControllerValue);
            virtual void             TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity);
            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<Event>::Iterator& itEvent);
            virtual void             ProcessCutoffEvent(RTList<Event>::Iterator& itEvent);
            virtual double           GetVelocityAttenuation(uint8_t MIDIKeyVelocity);
            virtual double           GetVelocityRelease(uint8_t MIDIKeyVelocity);
            virtual double           GetSampleAttenuation();
            virtual void             ProcessGroupEvent(RTList<Event>::Iterator& itEvent);

        private:
            ::LinuxSampler::sfz::EGADSR EG1;
            ::LinuxSampler::gig::EGADSR EG2; // TODO: use sfz v1 instead of gig
            ::sf2::Region* pPresetRegion;

        public: // FIXME: just made public for debugging (sanity check in Engine::RenderAudio()), should be changed to private before the final release
            // Attributes
            Engine*                     pEngine;            ///< Pointer to the sampler engine, to be able to access the event lists.
            //uint                        LoopCyclesLeft;     ///< In case there is a RAMLoop and it's not an endless loop; reflects number of loop cycles left to be passed

            // Static Methods
            static float CalculateFilterCutoffCoeff();

            // Methods
            void ProcessEvents(uint Samples);
            void processCrossFadeEvent(RTList<Event>::Iterator& itEvent);

            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;
            }
    };

}} // namespace LinuxSampler::sf2

#endif // __LS_SF2_VOICE_H__
1	iliev	2012	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5			* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	persson	2055	* Copyright (C) 2005 - 2008 Christian Schoenebeck *
7	persson	2175	* Copyright (C) 2009 - 2011 Christian Schoenebeck and Grigor Iliev *
8	iliev	2012	* *
9			* This program is free software; you can redistribute it and/or modify *
10			* it under the terms of the GNU General Public License as published by *
11			* the Free Software Foundation; either version 2 of the License, or *
12			* (at your option) any later version. *
13			* *
14			* This program is distributed in the hope that it will be useful, *
15			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
16			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
17			* GNU General Public License for more details. *
18			* *
19			* You should have received a copy of the GNU General Public License *
20			* along with this program; if not, write to the Free Software *
21			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
22			* MA 02111-1307 USA *
23			***************************************************************************/
24
25			#ifndef __LS_SF2_VOICE_H__
26			#define __LS_SF2_VOICE_H__
27
28			#include "../../common/global_private.h"
29
30			#include "../../common/RTMath.h"
31			#include "../../common/Pool.h"
32			#include "../../drivers/audio/AudioOutputDevice.h"
33			#include "Stream.h"
34			#include "DiskThread.h"
35	persson	2055	#include "../gig/EGADSR.h"
36	iliev	2012	#include "../gig/Filter.h"
37			#include "../common/VoiceBase.h"
38			#include "../gig/SynthesisParam.h"
39	persson	2203	#include "../sfz/EGADSR.h"
40	iliev	2012
41			namespace LinuxSampler { namespace sf2 {
42			class Engine;
43			class EngineChannel;
44
45	iliev	2015	/** SoundFont Voice
46	iliev	2012	*
47	iliev	2015	* Renders a voice for the SoundFont format.
48	iliev	2012	*/
49	iliev	2015	class Voice : public LinuxSampler::VoiceBase<EngineChannel, ::sf2::Region, ::sf2::Sample, DiskThread> {
50	iliev	2012	public:
51			Voice();
52			virtual ~Voice();
53			void SetOutput(AudioOutputDevice* pAudioOutputDevice);
54			void SetEngine(LinuxSampler::Engine* pEngine);
55
56	iliev	2015	protected:
57			virtual SampleInfo GetSampleInfo();
58			virtual RegionInfo GetRegionInfo();
59			virtual InstrumentInfo GetInstrumentInfo();
60			virtual double CalculateCrossfadeVolume(uint8_t MIDIKeyVelocity);
61			virtual AbstractEngine* GetEngine() { return (AbstractEngine*)pEngine; }
62			virtual double GetEG1ControllerValue(uint8_t MIDIKeyVelocity);
63			virtual EGInfo CalculateEG1ControllerInfluence(double eg1ControllerValue);
64	persson	2055	virtual void TriggerEG1(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity);
65	iliev	2015	virtual double GetEG2ControllerValue(uint8_t MIDIKeyVelocity);
66			virtual EGInfo CalculateEG2ControllerInfluence(double eg2ControllerValue);
67	persson	2175	virtual void TriggerEG2(const EGInfo& egInfo, double velrelease, double velocityAttenuation, uint sampleRate, uint8_t velocity);
68	iliev	2015	virtual void InitLFO1();
69			virtual void InitLFO2();
70			virtual void InitLFO3();
71			virtual float CalculateCutoffBase(uint8_t MIDIKeyVelocity);
72			virtual float CalculateFinalCutoff(float cutoffBase);
73			virtual uint8_t GetVCFCutoffCtrl();
74			virtual uint8_t GetVCFResonanceCtrl();
75			virtual void ProcessCCEvent(RTList<Event>::Iterator& itEvent);
76			virtual void ProcessCutoffEvent(RTList<Event>::Iterator& itEvent);
77			virtual double GetVelocityAttenuation(uint8_t MIDIKeyVelocity);
78			virtual double GetVelocityRelease(uint8_t MIDIKeyVelocity);
79			virtual double GetSampleAttenuation();
80	persson	2114	virtual void ProcessGroupEvent(RTList<Event>::Iterator& itEvent);
81	iliev	2015
82			private:
83	persson	2203	::LinuxSampler::sfz::EGADSR EG1;
84			::LinuxSampler::gig::EGADSR EG2; // TODO: use sfz v1 instead of gig
85			::sf2::Region* pPresetRegion;
86	persson	2055
87	iliev	2015	public: // FIXME: just made public for debugging (sanity check in Engine::RenderAudio()), should be changed to private before the final release
88	iliev	2012	// Attributes
89			Engine* pEngine; ///< Pointer to the sampler engine, to be able to access the event lists.
90			//uint LoopCyclesLeft; ///< In case there is a RAMLoop and it's not an endless loop; reflects number of loop cycles left to be passed
91
92			// Static Methods
93			static float CalculateFilterCutoffCoeff();
94
95			// Methods
96			void ProcessEvents(uint Samples);
97			void processCrossFadeEvent(RTList<Event>::Iterator& itEvent);
98
99	iliev	2015	EngineChannel* GetSf2EngineChannel();
100
101			protected:
102			virtual uint8_t CrossfadeAttenuation(uint8_t& CrossfadeControllerValue) {
103			/*uint8_t c = std::max(CrossfadeControllerValue, pRegion->AttenuationControllerThreshold);
104			c = (!pRegion->Crossfade.out_end) ? c // 0,0,0,0 means no crossfade defined
105			: (c < pRegion->Crossfade.in_end) ?
106			((c <= pRegion->Crossfade.in_start) ? 0
107			: 127 * (c - pRegion->Crossfade.in_start) / (pRegion->Crossfade.in_end - pRegion->Crossfade.in_start))
108			: (c <= pRegion->Crossfade.out_start) ? 127
109			: (c < pRegion->Crossfade.out_end) ? 127 * (pRegion->Crossfade.out_end - c) / (pRegion->Crossfade.out_end - pRegion->Crossfade.out_start)
110			: 0;
111			return pRegion->InvertAttenuationController ? 127 - c : c;*/ // TODO: ^^^
112			return 0;
113	iliev	2012	}
114			};
115
116			}} // namespace LinuxSampler::sf2
117
118			#endif // __LS_SF2_VOICE_H__