engines/sfz/sfz.h

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2008 Anders Dahnielson <anders@dahnielson.com>          *
 *   Copyright (C) 2009 - 2011 Anders Dahnielson 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 LIBSFZ_SFZ_H
#define LIBSFZ_SFZ_H

#include <fstream>
#include <iostream>
#include <vector>
#include <string>
#include <stdexcept>

#include "../common/SampleFile.h"
#include "../common/SampleManager.h"
#include "../../common/ArrayList.h"

#define TRIGGER_ATTACK  ((unsigned char) (1 << 0)) // 0x01
#define TRIGGER_RELEASE ((unsigned char) (1 << 1)) // 0x02
#define TRIGGER_FIRST   ((unsigned char) (1 << 2)) // 0x04
#define TRIGGER_LEGATO  ((unsigned char) (1 << 3)) // 0x08

namespace sfz
{
    // Forward declarations
    class Articulation;
    class Region;
    class Group;
    class Instrument;
    class File;
    class LookupTable;

    class Sample : public LinuxSampler::SampleFileBase<Region> {
        public:
            Sample(String File, bool DontClose = false, uint offset = 0): LinuxSampler::SampleFileBase<Region>(File, DontClose) {
                Offset = offset;
            }
            virtual ~Sample() { }
    };

    // Enumerations
    enum sw_vel_t    { VEL_CURRENT, VEL_PREVIOUS };
    enum off_mode_t  { OFF_FAST, OFF_NORMAL };
    enum loop_mode_t { NO_LOOP, ONE_SHOT, LOOP_CONTINUOUS, LOOP_SUSTAIN, LOOP_UNSET };
    enum curve_t     { GAIN, POWER };
    enum filter_t    { LPF_1P, HPF_1P, BPF_1P, BRF_1P, APF_1P,
                       LPF_2P, HPF_2P, BPF_2P, BRF_2P, PKF_2P,
                       LPF_4P, HPF_4P,
                       LPF_6P, HPF_6P };

    typedef unsigned char trigger_t;
    typedef unsigned char uint8_t;

    class SampleManager : public LinuxSampler::SampleManager<Sample, Region> {
    public:
        Sample* FindSample(std::string samplePath, int offset);

    protected:
        virtual void OnSampleInUse(Sample* pSample) {
            pSample->Open();
        }

        virtual void OnSampleInNotUse(Sample* pSample) {
            pSample->Close();
        }
    };

    /////////////////////////////////////////////////////////////
    // class Exception

    class Exception :
        public std::runtime_error
    {
        public:
        Exception(const std::string& msg) :
            runtime_error(msg)
        {
        }

        std::string Message()
        {
            return what();
        }

        void PrintMessage()
        {
            std::cerr << what() << std::endl << std::flush;
        }
    };

    /////////////////////////////////////////////////////////////
    // class optional

    //  Handy class nicked from LinuxSampler...
    //  Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck
    //  Copyright (C) 2005, 2006 Christian Schoenebeck

    class optional_base
    {
        public:
        class nothing_t { public: nothing_t() {} };
        static const nothing_t nothing;
    };

    template<class T>
    class optional :
        public optional_base
    {
        public:
        optional()
        {
            initialized = false;
        }

        optional(T data)
        {
            this->data  = data;
            initialized = true;
        }

        optional(nothing_t)
        {
            initialized = false;
        }

        template <class T_inner>
        optional(T_inner data)
        {
            this->data  = T(data);
            initialized = true;
        }

        const T& get() const throw (Exception)
        {
            if (!initialized) throw Exception("optional variable not initialized");
            return data;
        }

        T& get() throw (Exception)
        {
            if (!initialized) throw Exception("optional variable not initialized");
            return data;
        }

        void unset()
        {
            initialized = false;
        }

        optional& operator =(const optional& arg) throw (Exception)
        {
            if (!arg.initialized) {
                            initialized = false;
                        } else {
                            this->data  = arg.data;
                            initialized = true;
                        }
            return *this;
        }

        optional& operator =(const T& arg)
        {
            this->data  = arg;
            initialized = true;
            return *this;
        }

        const T& operator *() const throw (Exception) { return get(); }
        T&       operator *()       throw (Exception) { return get(); }

        const T* operator ->() const throw (Exception)
        {
            if (!initialized) throw Exception("optional variable not initialized");
            return &data;
        }

        T* operator ->() throw (Exception)
        {
            if (!initialized) throw Exception("optional variable not initialized");
            return &data;
        }

        operator bool()   const { return initialized; }
        bool operator !() const { return !initialized; }

        protected:
        T    data;
        bool initialized;
    };

    /////////////////////////////////////////////////////////////
    // class Articulation

    // Articulation containing all performance parameters for synthesis
    class Articulation
    {
    public:
        Articulation();
        virtual ~Articulation();
    };

    class EGNode
    {
    public:
        float time;
        float level;
        float shape;
        float curve;
        EGNode();
    };

    class EG
    {
    public:
        LinuxSampler::ArrayList<EGNode> node;
        int sustain;
        int loop;
        int loop_count;
        float amplitude;
        float cutoff;
        EG();
    };

    class LFO
    {
    public:
        float freq; // 0 to 20 Hz
        uint  wave; // 0 to 4294967296
        float delay; // 0 to 100 seconds
        float volume; // -144 to 6 dB
        int   pitch; // -9600 to 9600 cents
        int   cutoff; // -9600 to 9600 cents
        float resonance; // 0 to 40 dB
        float pan; // -100 to 100 %
        LFO();
    };

    // Fixed size array with copy-on-write semantics
    template<class T>
    class Array
    {
    private:
        struct Rep {
            int refcount;
            T a[128];

            Rep() : refcount(1) { }
            static void release(Rep* rep) {
                if (!--rep->refcount) delete rep;
            }
        } *ptr;
    public:
        Array() : ptr(0) { }
        ~Array() { Rep::release(ptr); }

        Array& operator=(const Array& array) {
            if (this != &array) {
                ptr = array.ptr;
                if (ptr) ptr->refcount++;
            }
            return *this;
        }

        const T& operator[](int i) const { return ptr->a[i]; }

        void set(int i, const T& v) {
            if (!ptr) {
                ptr = new Rep;
            } else if (ptr->refcount > 1 && ptr->a[i] != v) {
                Rep* newptr = new Rep(*ptr);
                newptr->refcount = 1;
                Rep::release(ptr);
                ptr = newptr;
            }
            ptr->a[i] = v;
        }
    };

    /////////////////////////////////////////////////////////////
    // class Definition

    // Base definition used by groups and regions
    class Definition
    {
    public:
        Definition();
        virtual ~Definition();

        // sample definition
        std::string sample;

        // input controls
        int   lochan;    int   hichan;
        int   lokey;     int   hikey;
        int   lovel;     int   hivel;
        Array<int> locc; Array<int> hicc;
        int   lobend;    int   hibend;
        float lobpm;     float hibpm;
        int   lochanaft; int   hichanaft;
        int   lopolyaft; int   hipolyaft;
        int   loprog;    int   hiprog;
        float lorand;    float hirand;
        float lotimer;   float hitimer;

        int seq_length;
        int seq_position;

        Array<int> start_locc; Array<int> start_hicc;
        Array<int> stop_locc;  Array<int> stop_hicc;

        int sw_lokey;    int sw_hikey;
        int sw_last;
        int sw_down;
        int sw_up;
        int sw_previous;
        sw_vel_t sw_vel;

        trigger_t trigger;

        uint group;
        uint off_by;
        off_mode_t off_mode;

        Array<int> on_locc; Array<int> on_hicc;

        // sample player
        optional<int> count;
        optional<float> delay; optional<float> delay_random; Array<optional<float> > delay_oncc;
        optional<int> delay_beats; optional<int> stop_beats;
        optional<int> delay_samples; Array<optional<int> > delay_samples_oncc;
        optional<int> end;
        optional<float> loop_crossfade;
        optional<int> offset; optional<int> offset_random; Array<optional<int> > offset_oncc;
        loop_mode_t loop_mode;
        optional<int> loop_start; optional<int> loop_end;
        optional<int> sync_beats;
        optional<int> sync_offset;

        // amplifier
        float volume;
        float pan;
        float width;
        float position;
        float amp_keytrack; int amp_keycenter; float amp_veltrack; Array<float> amp_velcurve; float amp_random;
        float rt_decay;
        Array<float> gain_oncc;
        int xfin_lokey; int xfin_hikey;
        int xfout_lokey; int xfout_hikey;
        curve_t xf_keycurve;
        int xfin_lovel; int xfin_hivel;
        int xfout_lovel; int xfout_hivel;
        curve_t xf_velcurve;
        Array<int> xfin_locc; Array<int> xfin_hicc;
        Array<int> xfout_locc; Array<int> xfout_hicc;
        curve_t xf_cccurve;

        // pitch
        int transpose;
        int tune;
        int pitch_keycenter; int pitch_keytrack; int pitch_veltrack; int pitch_random;
        int bend_up; int bend_down; int bend_step;

        // filter
        filter_t fil_type; filter_t fil2_type;
        optional<float> cutoff; optional<float> cutoff2;
        Array<int> cutoff_oncc; Array<int> cutoff2_oncc;
        int cutoff_cc; // TODO: this is just a temporary fix to avoid
                       // looping through the cutoff_oncc array
        Array<int> cutoff_smoothcc; Array<int> cutoff2_smoothcc;
        Array<int> cutoff_stepcc; Array<int> cutoff2_stepcc;
        Array<int> cutoff_curvecc; Array<int> cutoff2_curvecc;
        int cutoff_chanaft; int cutoff2_chanaft;
        int cutoff_polyaft; int cutoff2_polyaft;
        float resonance; float resonance2;
        Array<int> resonance_oncc; Array<int> resonance2_oncc;
        Array<int> resonance_smoothcc; Array<int> resonance2_smoothcc;
        Array<int> resonance_stepcc; Array<int> resonance2_stepcc;
        Array<int> resonance_curvecc; Array<int> resonance2_curvecc;
        int fil_keytrack; int fil2_keytrack;
        int fil_keycenter; int fil2_keycenter;
        int fil_veltrack; int fil2_veltrack;
        int fil_random; int fil2_random;

        // per voice equalizer
        float eq1_freq; float eq2_freq; float eq3_freq;
        Array<float> eq1_freq_oncc; Array<float> eq2_freq_oncc; Array<float> eq3_freq_oncc;
        float eq1_vel2freq; float eq2_vel2freq; float eq3_vel2freq;
        float eq1_bw; float eq2_bw; float eq3_bw;
        Array<float> eq1_bw_oncc; Array<float> eq2_bw_oncc; Array<float> eq3_bw_oncc;
        float eq1_gain; float eq2_gain; float eq3_gain;
        Array<float> eq1_gain_oncc; Array<float> eq2_gain_oncc; Array<float> eq3_gain_oncc;
        float eq1_vel2gain; float eq2_vel2gain; float eq3_vel2gain;

        //Deprecated (from version 1)
        float ampeg_delay, ampeg_start, ampeg_attack, ampeg_hold, ampeg_decay, ampeg_sustain, ampeg_release;
        float ampeg_vel2delay, ampeg_vel2attack, ampeg_vel2hold, ampeg_vel2decay, ampeg_vel2sustain, ampeg_vel2release;
        float fileg_delay, fileg_start, fileg_attack, fileg_hold, fileg_decay, fileg_sustain, fileg_release;
        float fileg_vel2delay, fileg_vel2attack, fileg_vel2hold, fileg_vel2decay, fileg_vel2sustain, fileg_vel2release;
        float pitcheg_delay, pitcheg_start, pitcheg_attack, pitcheg_hold, pitcheg_decay, pitcheg_sustain, pitcheg_release;
        float pitcheg_vel2delay, pitcheg_vel2attack, pitcheg_vel2hold, pitcheg_vel2decay, pitcheg_vel2sustain, pitcheg_vel2release;
        int   fileg_depth, pitcheg_depth;
        float amplfo_delay, amplfo_fade, amplfo_freq, amplfo_depth;
        float fillfo_delay, fillfo_fade, fillfo_freq, fillfo_depth;
        float pitchlfo_delay, pitchlfo_fade, pitchlfo_freq;
        int pitchlfo_depth;
        Array<int> pitchlfo_depthcc;

        // envelope generators
        LinuxSampler::ArrayList<EG> eg;

        // low frequency oscillators
        LinuxSampler::ArrayList<LFO> lfos;
    };

    class Query {
    public:
        uint8_t chan;        // MIDI channel
        uint8_t key;         // MIDI note
        uint8_t vel;         // MIDI velocity
        int bend;            // MIDI pitch bend
        uint8_t bpm;         // host BPM
        uint8_t chanaft;     // MIDI channel pressure
        uint8_t polyaft;     // MIDI polyphonic aftertouch
        uint8_t prog;        // MIDI program change
        float rand;          // generated random number
        trigger_t trig;      // how it was triggered
        uint8_t* cc;         // all 128 CC values
        float timer;         // time since previous region in the group was triggered
        bool* sw;            // state of region key switches, 128 possible values
        uint8_t last_sw_key; // last key pressed in the key switch range
        uint8_t prev_sw_key; // previous note value

        void search(const Instrument* pInstrument);
        void search(const Instrument* pInstrument, int triggercc);
        Region* next();
    private:
        LinuxSampler::ArrayList<Region*>* pRegionList;
        int regionIndex;
    };

    /////////////////////////////////////////////////////////////
    // class Region

    /// Defines Region information of an Instrument
    class Region :
        public Definition
    {
    public:
        Region();
        virtual ~Region();

        Sample* pSample;
        Sample* GetSample(bool create = true);
        void DestroySampleIfNotUsed();

        Region*      GetParent() { return this; }; // needed by EngineBase
        Instrument*  GetInstrument() { return pInstrument; }
        void         SetInstrument(Instrument* pInstrument) { this->pInstrument = pInstrument; }

        bool HasLoop();
        uint GetLoopStart();
        uint GetLoopEnd();
        uint GetLoopCount();

        /// Return true if region is triggered by key. Region is
        /// assumed to come from a search in the lookup table.
        bool OnKey(const Query& q);

        /// Return an articulation for the current state
        Articulation* GetArticulation(int bend, uint8_t bpm, uint8_t chanaft, uint8_t polyaft, uint8_t* cc);

        // unique region id
        int id;

    private:
        Instrument* pInstrument;
        int seq_counter;
    };

    /////////////////////////////////////////////////////////////
    // class Instrument

    /// Provides all neccessary information for the synthesis of an Instrument
    class Instrument : public SampleManager
    {
    public:
        Instrument(std::string name = "Unknown", SampleManager* pSampleManager = NULL);
        virtual ~Instrument();

        std::string GetName() { return name; }
        SampleManager* GetSampleManager() { return pSampleManager; }

        bool DestroyRegion(Region* pRegion);
        bool HasKeyBinding(uint8_t key);
        bool HasKeySwitchBinding(uint8_t key);

        /// List of Regions belonging to this Instrument
        std::vector<Region*> regions;

        friend class File;
        friend class Query;

    private:
        std::string name;
        std::vector<bool> KeyBindings;
        std::vector<bool> KeySwitchBindings;
        SampleManager* pSampleManager;
        LookupTable* pLookupTable;
        LookupTable* pLookupTableCC[128];
    };

    /////////////////////////////////////////////////////////////
    // class Group

    /// A Group act just as a template containing Region default values
    class Group :
        public Definition
    {
    public:
        Group();
        virtual ~Group();

        /// Reset Group to default values
        void Reset();

        /// Create a new Region
        Region* RegionFactory();

        // id counter
        int id;

    };

    /////////////////////////////////////////////////////////////
    // class File

    /// Parses SFZ files and provides abstract access to the data
    class File
    {
    public:
        /// Load an existing SFZ file
        File(std::string file, SampleManager* pSampleManager = NULL);
        virtual ~File();

        /// Returns a pointer to the instrument object
        Instrument* GetInstrument();

    private:
        void  push_header(std::string token);
        void  push_opcode(std::string token);
        int parseKey(const std::string& value);
        EG& eg(int x);
        EGNode& egnode(int x, int y);
        LFO& lfo(int x);

        std::string currentDir;
        /// Pointer to the Instrument belonging to this file
        Instrument* _instrument;

        // state variables
        enum section_t { UNKNOWN, GROUP, REGION, CONTROL };
        section_t _current_section;
        Region* _current_region;
        Group* _current_group;
        Definition* pCurDef;

        // control header directives
        std::string default_path;
        int octave_offset;
        int note_offset;
    };

} // !namespace sfz

#endif // !LIBSFZ_SFZ_H
1	iliev	2012	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5	persson	2055	* Copyright (C) 2008 Anders Dahnielson <anders@dahnielson.com> *
6	persson	2167	* Copyright (C) 2009 - 2011 Anders Dahnielson and Grigor Iliev *
7	iliev	2012	* *
8			* This program is free software; you can redistribute it and/or modify *
9			* it under the terms of the GNU General Public License as published by *
10			* the Free Software Foundation; either version 2 of the License, or *
11			* (at your option) any later version. *
12			* *
13			* This program is distributed in the hope that it will be useful, *
14			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
15			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16			* GNU General Public License for more details. *
17			* *
18			* You should have received a copy of the GNU General Public License *
19			* along with this program; if not, write to the Free Software *
20			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21			* MA 02111-1307 USA *
22			***************************************************************************/
23
24			#ifndef LIBSFZ_SFZ_H
25			#define LIBSFZ_SFZ_H
26
27			#include <fstream>
28			#include <iostream>
29			#include <vector>
30			#include <string>
31			#include <stdexcept>
32
33			#include "../common/SampleFile.h"
34			#include "../common/SampleManager.h"
35	persson	2055	#include "../../common/ArrayList.h"
36	iliev	2012
37			#define TRIGGER_ATTACK ((unsigned char) (1 << 0)) // 0x01
38			#define TRIGGER_RELEASE ((unsigned char) (1 << 1)) // 0x02
39			#define TRIGGER_FIRST ((unsigned char) (1 << 2)) // 0x04
40			#define TRIGGER_LEGATO ((unsigned char) (1 << 3)) // 0x08
41
42	persson	2055	namespace sfz
43	iliev	2012	{
44			// Forward declarations
45			class Articulation;
46			class Region;
47			class Group;
48			class Instrument;
49			class File;
50	persson	2106	class LookupTable;
51	persson	2055
52	iliev	2021	class Sample : public LinuxSampler::SampleFileBase<Region> {
53			public:
54	iliev	2216	Sample(String File, bool DontClose = false, uint offset = 0): LinuxSampler::SampleFileBase<Region>(File, DontClose) {
55			Offset = offset;
56			}
57	iliev	2021	virtual ~Sample() { }
58			};
59	iliev	2012
60			// Enumerations
61			enum sw_vel_t { VEL_CURRENT, VEL_PREVIOUS };
62			enum off_mode_t { OFF_FAST, OFF_NORMAL };
63	persson	2167	enum loop_mode_t { NO_LOOP, ONE_SHOT, LOOP_CONTINUOUS, LOOP_SUSTAIN, LOOP_UNSET };
64	iliev	2012	enum curve_t { GAIN, POWER };
65			enum filter_t { LPF_1P, HPF_1P, BPF_1P, BRF_1P, APF_1P,
66			LPF_2P, HPF_2P, BPF_2P, BRF_2P, PKF_2P,
67			LPF_4P, HPF_4P,
68			LPF_6P, HPF_6P };
69
70			typedef unsigned char trigger_t;
71			typedef unsigned char uint8_t;
72
73	iliev	2021	class SampleManager : public LinuxSampler::SampleManager<Sample, Region> {
74	iliev	2012	public:
75	iliev	2216	Sample* FindSample(std::string samplePath, int offset);
76	iliev	2012
77			protected:
78	iliev	2021	virtual void OnSampleInUse(Sample* pSample) {
79	iliev	2012	pSample->Open();
80			}
81
82	iliev	2021	virtual void OnSampleInNotUse(Sample* pSample) {
83	iliev	2012	pSample->Close();
84			}
85			};
86
87			/////////////////////////////////////////////////////////////
88			// class Exception
89
90			class Exception :
91			public std::runtime_error
92			{
93			public:
94			Exception(const std::string& msg) :
95			runtime_error(msg)
96			{
97			}
98
99			std::string Message()
100			{
101			return what();
102			}
103
104			void PrintMessage()
105			{
106			std::cerr << what() << std::endl << std::flush;
107			}
108			};
109
110			/////////////////////////////////////////////////////////////
111			// class optional
112
113			// Handy class nicked from LinuxSampler...
114			// Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck
115			// Copyright (C) 2005, 2006 Christian Schoenebeck
116
117			class optional_base
118			{
119			public:
120			class nothing_t { public: nothing_t() {} };
121			static const nothing_t nothing;
122			};
123
124			template<class T>
125			class optional :
126			public optional_base
127			{
128			public:
129			optional()
130			{
131			initialized = false;
132			}
133
134			optional(T data)
135			{
136			this->data = data;
137			initialized = true;
138			}
139
140			optional(nothing_t)
141			{
142			initialized = false;
143			}
144
145			template <class T_inner>
146			optional(T_inner data)
147			{
148			this->data = T(data);
149			initialized = true;
150			}
151
152			const T& get() const throw (Exception)
153			{
154			if (!initialized) throw Exception("optional variable not initialized");
155			return data;
156			}
157
158			T& get() throw (Exception)
159			{
160			if (!initialized) throw Exception("optional variable not initialized");
161			return data;
162			}
163
164			void unset()
165			{
166			initialized = false;
167			}
168
169			optional& operator =(const optional& arg) throw (Exception)
170			{
171			if (!arg.initialized) {
172			initialized = false;
173			} else {
174			this->data = arg.data;
175			initialized = true;
176			}
177			return *this;
178			}
179
180			optional& operator =(const T& arg)
181			{
182			this->data = arg;
183			initialized = true;
184			return *this;
185			}
186
187			const T& operator *() const throw (Exception) { return get(); }
188			T& operator *() throw (Exception) { return get(); }
189
190			const T* operator ->() const throw (Exception)
191			{
192			if (!initialized) throw Exception("optional variable not initialized");
193			return &data;
194			}
195
196			T* operator ->() throw (Exception)
197			{
198			if (!initialized) throw Exception("optional variable not initialized");
199			return &data;
200			}
201
202			operator bool() const { return initialized; }
203			bool operator !() const { return !initialized; }
204
205			protected:
206			T data;
207			bool initialized;
208			};
209
210			/////////////////////////////////////////////////////////////
211			// class Articulation
212
213			// Articulation containing all performance parameters for synthesis
214			class Articulation
215			{
216			public:
217			Articulation();
218			virtual ~Articulation();
219			};
220
221	persson	2055	class EGNode
222			{
223			public:
224			float time;
225			float level;
226			float shape;
227			float curve;
228			EGNode();
229			};
230
231			class EG
232			{
233			public:
234			LinuxSampler::ArrayList<EGNode> node;
235			int sustain;
236			int loop;
237			int loop_count;
238			float amplitude;
239			float cutoff;
240			EG();
241			};
242
243	iliev	2218	class LFO
244			{
245			public:
246			float freq; // 0 to 20 Hz
247			uint wave; // 0 to 4294967296
248			float delay; // 0 to 100 seconds
249	iliev	2221	float volume; // -144 to 6 dB
250	iliev	2218	int pitch; // -9600 to 9600 cents
251			int cutoff; // -9600 to 9600 cents
252			float resonance; // 0 to 40 dB
253			float pan; // -100 to 100 %
254			LFO();
255			};
256
257	persson	2091	// Fixed size array with copy-on-write semantics
258			template<class T>
259			class Array
260			{
261			private:
262			struct Rep {
263			int refcount;
264			T a[128];
265
266			Rep() : refcount(1) { }
267			static void release(Rep* rep) {
268			if (!--rep->refcount) delete rep;
269			}
270			} *ptr;
271			public:
272			Array() : ptr(0) { }
273			~Array() { Rep::release(ptr); }
274
275			Array& operator=(const Array& array) {
276			if (this != &array) {
277			ptr = array.ptr;
278			if (ptr) ptr->refcount++;
279			}
280			return *this;
281			}
282
283			const T& operator[](int i) const { return ptr->a[i]; }
284
285			void set(int i, const T& v) {
286			if (!ptr) {
287			ptr = new Rep;
288			} else if (ptr->refcount > 1 && ptr->a[i] != v) {
289			Rep* newptr = new Rep(*ptr);
290			newptr->refcount = 1;
291			Rep::release(ptr);
292			ptr = newptr;
293			}
294			ptr->a[i] = v;
295			}
296			};
297
298	iliev	2012	/////////////////////////////////////////////////////////////
299			// class Definition
300
301			// Base definition used by groups and regions
302			class Definition
303			{
304			public:
305			Definition();
306			virtual ~Definition();
307
308			// sample definition
309			std::string sample;
310
311			// input controls
312			int lochan; int hichan;
313			int lokey; int hikey;
314			int lovel; int hivel;
315	persson	2091	Array<int> locc; Array<int> hicc;
316	iliev	2012	int lobend; int hibend;
317	persson	2106	float lobpm; float hibpm;
318	iliev	2012	int lochanaft; int hichanaft;
319			int lopolyaft; int hipolyaft;
320			int loprog; int hiprog;
321			float lorand; float hirand;
322			float lotimer; float hitimer;
323
324			int seq_length;
325			int seq_position;
326
327	persson	2091	Array<int> start_locc; Array<int> start_hicc;
328			Array<int> stop_locc; Array<int> stop_hicc;
329	iliev	2012
330			int sw_lokey; int sw_hikey;
331			int sw_last;
332			int sw_down;
333			int sw_up;
334			int sw_previous;
335			sw_vel_t sw_vel;
336
337			trigger_t trigger;
338
339	iliev	2027	uint group;
340	persson	2114	uint off_by;
341	iliev	2012	off_mode_t off_mode;
342
343	persson	2091	Array<int> on_locc; Array<int> on_hicc;
344	iliev	2012
345			// sample player
346			optional<int> count;
347	persson	2091	optional<float> delay; optional<float> delay_random; Array<optional<float> > delay_oncc;
348	iliev	2012	optional<int> delay_beats; optional<int> stop_beats;
349	persson	2091	optional<int> delay_samples; Array<optional<int> > delay_samples_oncc;
350	iliev	2012	optional<int> end;
351			optional<float> loop_crossfade;
352	persson	2091	optional<int> offset; optional<int> offset_random; Array<optional<int> > offset_oncc;
353	iliev	2012	loop_mode_t loop_mode;
354			optional<int> loop_start; optional<int> loop_end;
355			optional<int> sync_beats;
356			optional<int> sync_offset;
357
358			// amplifier
359			float volume;
360			float pan;
361			float width;
362			float position;
363	persson	2091	float amp_keytrack; int amp_keycenter; float amp_veltrack; Array<float> amp_velcurve; float amp_random;
364	iliev	2012	float rt_decay;
365	persson	2091	Array<float> gain_oncc;
366	iliev	2012	int xfin_lokey; int xfin_hikey;
367			int xfout_lokey; int xfout_hikey;
368			curve_t xf_keycurve;
369			int xfin_lovel; int xfin_hivel;
370			int xfout_lovel; int xfout_hivel;
371			curve_t xf_velcurve;
372	persson	2091	Array<int> xfin_locc; Array<int> xfin_hicc;
373			Array<int> xfout_locc; Array<int> xfout_hicc;
374	iliev	2012	curve_t xf_cccurve;
375
376			// pitch
377			int transpose;
378			int tune;
379			int pitch_keycenter; int pitch_keytrack; int pitch_veltrack; int pitch_random;
380			int bend_up; int bend_down; int bend_step;
381
382			// filter
383			filter_t fil_type; filter_t fil2_type;
384			optional<float> cutoff; optional<float> cutoff2;
385	persson	2091	Array<int> cutoff_oncc; Array<int> cutoff2_oncc;
386	persson	2175	int cutoff_cc; // TODO: this is just a temporary fix to avoid
387			// looping through the cutoff_oncc array
388	persson	2091	Array<int> cutoff_smoothcc; Array<int> cutoff2_smoothcc;
389			Array<int> cutoff_stepcc; Array<int> cutoff2_stepcc;
390			Array<int> cutoff_curvecc; Array<int> cutoff2_curvecc;
391	iliev	2012	int cutoff_chanaft; int cutoff2_chanaft;
392			int cutoff_polyaft; int cutoff2_polyaft;
393			float resonance; float resonance2;
394	persson	2091	Array<int> resonance_oncc; Array<int> resonance2_oncc;
395			Array<int> resonance_smoothcc; Array<int> resonance2_smoothcc;
396			Array<int> resonance_stepcc; Array<int> resonance2_stepcc;
397			Array<int> resonance_curvecc; Array<int> resonance2_curvecc;
398	iliev	2012	int fil_keytrack; int fil2_keytrack;
399			int fil_keycenter; int fil2_keycenter;
400			int fil_veltrack; int fil2_veltrack;
401			int fil_random; int fil2_random;
402
403			// per voice equalizer
404			float eq1_freq; float eq2_freq; float eq3_freq;
405	persson	2091	Array<float> eq1_freq_oncc; Array<float> eq2_freq_oncc; Array<float> eq3_freq_oncc;
406	iliev	2012	float eq1_vel2freq; float eq2_vel2freq; float eq3_vel2freq;
407			float eq1_bw; float eq2_bw; float eq3_bw;
408	persson	2091	Array<float> eq1_bw_oncc; Array<float> eq2_bw_oncc; Array<float> eq3_bw_oncc;
409	iliev	2012	float eq1_gain; float eq2_gain; float eq3_gain;
410	persson	2091	Array<float> eq1_gain_oncc; Array<float> eq2_gain_oncc; Array<float> eq3_gain_oncc;
411	iliev	2012	float eq1_vel2gain; float eq2_vel2gain; float eq3_vel2gain;
412	iliev	2018
413			//Deprecated (from version 1)
414			float ampeg_delay, ampeg_start, ampeg_attack, ampeg_hold, ampeg_decay, ampeg_sustain, ampeg_release;
415	persson	2176	float ampeg_vel2delay, ampeg_vel2attack, ampeg_vel2hold, ampeg_vel2decay, ampeg_vel2sustain, ampeg_vel2release;
416	iliev	2018	float fileg_delay, fileg_start, fileg_attack, fileg_hold, fileg_decay, fileg_sustain, fileg_release;
417	iliev	2222	float fileg_vel2delay, fileg_vel2attack, fileg_vel2hold, fileg_vel2decay, fileg_vel2sustain, fileg_vel2release;
418	iliev	2018	float pitcheg_delay, pitcheg_start, pitcheg_attack, pitcheg_hold, pitcheg_decay, pitcheg_sustain, pitcheg_release;
419	iliev	2220	float pitcheg_vel2delay, pitcheg_vel2attack, pitcheg_vel2hold, pitcheg_vel2decay, pitcheg_vel2sustain, pitcheg_vel2release;
420	iliev	2222	int fileg_depth, pitcheg_depth;
421	persson	2072	float amplfo_delay, amplfo_fade, amplfo_freq, amplfo_depth;
422			float fillfo_delay, fillfo_fade, fillfo_freq, fillfo_depth;
423			float pitchlfo_delay, pitchlfo_fade, pitchlfo_freq;
424			int pitchlfo_depth;
425	iliev	2224	Array<int> pitchlfo_depthcc;
426	persson	2055
427			// envelope generators
428			LinuxSampler::ArrayList<EG> eg;
429	iliev	2218
430			// low frequency oscillators
431			LinuxSampler::ArrayList<LFO> lfos;
432	iliev	2012	};
433
434	persson	2101	class Query {
435			public:
436			uint8_t chan; // MIDI channel
437	persson	2115	uint8_t key; // MIDI note
438	persson	2101	uint8_t vel; // MIDI velocity
439			int bend; // MIDI pitch bend
440			uint8_t bpm; // host BPM
441			uint8_t chanaft; // MIDI channel pressure
442			uint8_t polyaft; // MIDI polyphonic aftertouch
443			uint8_t prog; // MIDI program change
444			float rand; // generated random number
445			trigger_t trig; // how it was triggered
446			uint8_t* cc; // all 128 CC values
447			float timer; // time since previous region in the group was triggered
448			bool* sw; // state of region key switches, 128 possible values
449			uint8_t last_sw_key; // last key pressed in the key switch range
450			uint8_t prev_sw_key; // previous note value
451	persson	2106
452			void search(const Instrument* pInstrument);
453	persson	2115	void search(const Instrument* pInstrument, int triggercc);
454	persson	2106	Region* next();
455	persson	2101	private:
456	persson	2106	LinuxSampler::ArrayList<Region> pRegionList;
457			int regionIndex;
458	persson	2101	};
459
460	iliev	2012	/////////////////////////////////////////////////////////////
461			// class Region
462
463			/// Defines Region information of an Instrument
464			class Region :
465			public Definition
466			{
467			public:
468			Region();
469			virtual ~Region();
470
471	iliev	2021	Sample* pSample;
472			Sample* GetSample(bool create = true);
473	iliev	2012	void DestroySampleIfNotUsed();
474
475			Region* GetParent() { return this; }; // needed by EngineBase
476			Instrument* GetInstrument() { return pInstrument; }
477			void SetInstrument(Instrument* pInstrument) { this->pInstrument = pInstrument; }
478
479	iliev	2021	bool HasLoop();
480			uint GetLoopStart();
481			uint GetLoopEnd();
482			uint GetLoopCount();
483
484	persson	2106	/// Return true if region is triggered by key. Region is
485			/// assumed to come from a search in the lookup table.
486	persson	2101	bool OnKey(const Query& q);
487	iliev	2012
488			/// Return an articulation for the current state
489	persson	2101	Articulation* GetArticulation(int bend, uint8_t bpm, uint8_t chanaft, uint8_t polyaft, uint8_t* cc);
490	iliev	2012
491			// unique region id
492			int id;
493
494			private:
495			Instrument* pInstrument;
496	persson	2072	int seq_counter;
497	iliev	2012	};
498
499			/////////////////////////////////////////////////////////////
500			// class Instrument
501
502			/// Provides all neccessary information for the synthesis of an Instrument
503			class Instrument : public SampleManager
504			{
505			public:
506			Instrument(std::string name = "Unknown", SampleManager* pSampleManager = NULL);
507			virtual ~Instrument();
508
509			std::string GetName() { return name; }
510			SampleManager* GetSampleManager() { return pSampleManager; }
511
512			bool DestroyRegion(Region* pRegion);
513			bool HasKeyBinding(uint8_t key);
514			bool HasKeySwitchBinding(uint8_t key);
515
516			/// List of Regions belonging to this Instrument
517			std::vector<Region*> regions;
518
519	persson	2106	friend class File;
520			friend class Query;
521	iliev	2012
522			private:
523			std::string name;
524			std::vector<bool> KeyBindings;
525			std::vector<bool> KeySwitchBindings;
526			SampleManager* pSampleManager;
527	persson	2106	LookupTable* pLookupTable;
528	persson	2115	LookupTable* pLookupTableCC[128];
529	iliev	2012	};
530
531			/////////////////////////////////////////////////////////////
532			// class Group
533
534			/// A Group act just as a template containing Region default values
535			class Group :
536			public Definition
537			{
538			public:
539			Group();
540			virtual ~Group();
541
542			/// Reset Group to default values
543			void Reset();
544
545			/// Create a new Region
546			Region* RegionFactory();
547
548			// id counter
549			int id;
550
551			};
552
553			/////////////////////////////////////////////////////////////
554			// class File
555
556			/// Parses SFZ files and provides abstract access to the data
557			class File
558			{
559			public:
560			/// Load an existing SFZ file
561			File(std::string file, SampleManager* pSampleManager = NULL);
562			virtual ~File();
563
564			/// Returns a pointer to the instrument object
565			Instrument* GetInstrument();
566
567			private:
568			void push_header(std::string token);
569			void push_opcode(std::string token);
570	persson	2058	int parseKey(const std::string& value);
571	persson	2055	EG& eg(int x);
572			EGNode& egnode(int x, int y);
573	iliev	2218	LFO& lfo(int x);
574	iliev	2012
575			std::string currentDir;
576			/// Pointer to the Instrument belonging to this file
577			Instrument* _instrument;
578
579			// state variables
580			enum section_t { UNKNOWN, GROUP, REGION, CONTROL };
581			section_t _current_section;
582			Region* _current_region;
583			Group* _current_group;
584			Definition* pCurDef;
585
586			// control header directives
587			std::string default_path;
588			int octave_offset;
589			int note_offset;
590			};
591
592			} // !namespace sfz
593
594			#endif // !LIBSFZ_SFZ_H