engines/sfz/sfz.h

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2008 Anders Dahnielson <anders@dahnielson.com>          *
 *   Copyright (C) 2009 - 2010 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 Sample : public LinuxSampler::SampleFileBase<Region> {
        public:
            Sample(String File, bool DontClose = false) : LinuxSampler::SampleFileBase<Region>(File, DontClose) { }
            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 };
    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);

    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();
    };

    // 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;
        int   lobpm;     int   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;
        optional<int> 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;
        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 fileg_delay, fileg_start, fileg_attack, fileg_hold, fileg_decay, fileg_sustain, fileg_release;
        float pitcheg_delay, pitcheg_start, pitcheg_attack, pitcheg_hold, pitcheg_decay, pitcheg_sustain, pitcheg_release;
        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;

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

    class Query {
    public:
        Query(const Instrument& instrument);
        Region* next();
        uint8_t chan;        // MIDI channel
        uint8_t key;         // MIDI note      TODO: or controller
        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
    private:
        std::vector<Region*>::const_iterator i;
        std::vector<Region*>::const_iterator regions_end;
    };

    /////////////////////////////////////////////////////////////
    // 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
        bool OnKey(const Query& q);

        /// Return true if region is triggered by control change
        bool OnControl(uint8_t chan, uint8_t cont, uint8_t val,
                   int bend, uint8_t bpm, uint8_t chanaft, uint8_t polyaft,
                   uint8_t prog, float rand, trigger_t trig, uint8_t* cc,
                   float timer, bool* sw, uint8_t last_sw_key, uint8_t prev_sw_key);

        /// 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 sfz::File;

    private:
        std::string name;
        std::vector<bool> KeyBindings;
        std::vector<bool> KeySwitchBindings;
        SampleManager* pSampleManager;
    };

    /////////////////////////////////////////////////////////////
    // 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);

        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	/***************************************************************************
2	* *
3	* LinuxSampler - modular, streaming capable sampler *
4	* *
5	* Copyright (C) 2008 Anders Dahnielson <anders@dahnielson.com> *
6	* Copyright (C) 2009 - 2010 Anders Dahnielson and Grigor Iliev *
7	* *
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	#include "../../common/ArrayList.h"
36
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	namespace sfz
43	{
44	// Forward declarations
45	class Articulation;
46	class Region;
47	class Group;
48	class Instrument;
49	class File;
50
51	class Sample : public LinuxSampler::SampleFileBase<Region> {
52	public:
53	Sample(String File, bool DontClose = false) : LinuxSampler::SampleFileBase<Region>(File, DontClose) { }
54	virtual ~Sample() { }
55	};
56
57	// Enumerations
58	enum sw_vel_t { VEL_CURRENT, VEL_PREVIOUS };
59	enum off_mode_t { OFF_FAST, OFF_NORMAL };
60	enum loop_mode_t { NO_LOOP, ONE_SHOT, LOOP_CONTINUOUS, LOOP_SUSTAIN };
61	enum curve_t { GAIN, POWER };
62	enum filter_t { LPF_1P, HPF_1P, BPF_1P, BRF_1P, APF_1P,
63	LPF_2P, HPF_2P, BPF_2P, BRF_2P, PKF_2P,
64	LPF_4P, HPF_4P,
65	LPF_6P, HPF_6P };
66
67	typedef unsigned char trigger_t;
68	typedef unsigned char uint8_t;
69
70	class SampleManager : public LinuxSampler::SampleManager<Sample, Region> {
71	public:
72	Sample* FindSample(std::string samplePath);
73
74	protected:
75	virtual void OnSampleInUse(Sample* pSample) {
76	pSample->Open();
77	}
78
79	virtual void OnSampleInNotUse(Sample* pSample) {
80	pSample->Close();
81	}
82	};
83
84	/////////////////////////////////////////////////////////////
85	// class Exception
86
87	class Exception :
88	public std::runtime_error
89	{
90	public:
91	Exception(const std::string& msg) :
92	runtime_error(msg)
93	{
94	}
95
96	std::string Message()
97	{
98	return what();
99	}
100
101	void PrintMessage()
102	{
103	std::cerr << what() << std::endl << std::flush;
104	}
105	};
106
107	/////////////////////////////////////////////////////////////
108	// class optional
109
110	// Handy class nicked from LinuxSampler...
111	// Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck
112	// Copyright (C) 2005, 2006 Christian Schoenebeck
113
114	class optional_base
115	{
116	public:
117	class nothing_t { public: nothing_t() {} };
118	static const nothing_t nothing;
119	};
120
121	template<class T>
122	class optional :
123	public optional_base
124	{
125	public:
126	optional()
127	{
128	initialized = false;
129	}
130
131	optional(T data)
132	{
133	this->data = data;
134	initialized = true;
135	}
136
137	optional(nothing_t)
138	{
139	initialized = false;
140	}
141
142	template <class T_inner>
143	optional(T_inner data)
144	{
145	this->data = T(data);
146	initialized = true;
147	}
148
149	const T& get() const throw (Exception)
150	{
151	if (!initialized) throw Exception("optional variable not initialized");
152	return data;
153	}
154
155	T& get() throw (Exception)
156	{
157	if (!initialized) throw Exception("optional variable not initialized");
158	return data;
159	}
160
161	void unset()
162	{
163	initialized = false;
164	}
165
166	optional& operator =(const optional& arg) throw (Exception)
167	{
168	if (!arg.initialized) {
169	initialized = false;
170	} else {
171	this->data = arg.data;
172	initialized = true;
173	}
174	return *this;
175	}
176
177	optional& operator =(const T& arg)
178	{
179	this->data = arg;
180	initialized = true;
181	return *this;
182	}
183
184	const T& operator *() const throw (Exception) { return get(); }
185	T& operator *() throw (Exception) { return get(); }
186
187	const T* operator ->() const throw (Exception)
188	{
189	if (!initialized) throw Exception("optional variable not initialized");
190	return &data;
191	}
192
193	T* operator ->() throw (Exception)
194	{
195	if (!initialized) throw Exception("optional variable not initialized");
196	return &data;
197	}
198
199	operator bool() const { return initialized; }
200	bool operator !() const { return !initialized; }
201
202	protected:
203	T data;
204	bool initialized;
205	};
206
207	/////////////////////////////////////////////////////////////
208	// class Articulation
209
210	// Articulation containing all performance parameters for synthesis
211	class Articulation
212	{
213	public:
214	Articulation();
215	virtual ~Articulation();
216	};
217
218	class EGNode
219	{
220	public:
221	float time;
222	float level;
223	float shape;
224	float curve;
225	EGNode();
226	};
227
228	class EG
229	{
230	public:
231	LinuxSampler::ArrayList<EGNode> node;
232	int sustain;
233	int loop;
234	int loop_count;
235	float amplitude;
236	float cutoff;
237	EG();
238	};
239
240	// Fixed size array with copy-on-write semantics
241	template<class T>
242	class Array
243	{
244	private:
245	struct Rep {
246	int refcount;
247	T a[128];
248
249	Rep() : refcount(1) { }
250	static void release(Rep* rep) {
251	if (!--rep->refcount) delete rep;
252	}
253	} *ptr;
254	public:
255	Array() : ptr(0) { }
256	~Array() { Rep::release(ptr); }
257
258	Array& operator=(const Array& array) {
259	if (this != &array) {
260	ptr = array.ptr;
261	if (ptr) ptr->refcount++;
262	}
263	return *this;
264	}
265
266	const T& operator[](int i) const { return ptr->a[i]; }
267
268	void set(int i, const T& v) {
269	if (!ptr) {
270	ptr = new Rep;
271	} else if (ptr->refcount > 1 && ptr->a[i] != v) {
272	Rep* newptr = new Rep(*ptr);
273	newptr->refcount = 1;
274	Rep::release(ptr);
275	ptr = newptr;
276	}
277	ptr->a[i] = v;
278	}
279	};
280
281	/////////////////////////////////////////////////////////////
282	// class Definition
283
284	// Base definition used by groups and regions
285	class Definition
286	{
287	public:
288	Definition();
289	virtual ~Definition();
290
291	// sample definition
292	std::string sample;
293
294	// input controls
295	int lochan; int hichan;
296	int lokey; int hikey;
297	int lovel; int hivel;
298	Array<int> locc; Array<int> hicc;
299	int lobend; int hibend;
300	int lobpm; int hibpm;
301	int lochanaft; int hichanaft;
302	int lopolyaft; int hipolyaft;
303	int loprog; int hiprog;
304	float lorand; float hirand;
305	float lotimer; float hitimer;
306
307	int seq_length;
308	int seq_position;
309
310	Array<int> start_locc; Array<int> start_hicc;
311	Array<int> stop_locc; Array<int> stop_hicc;
312
313	int sw_lokey; int sw_hikey;
314	int sw_last;
315	int sw_down;
316	int sw_up;
317	int sw_previous;
318	sw_vel_t sw_vel;
319
320	trigger_t trigger;
321
322	uint group;
323	optional<int> off_by;
324	off_mode_t off_mode;
325
326	Array<int> on_locc; Array<int> on_hicc;
327
328	// sample player
329	optional<int> count;
330	optional<float> delay; optional<float> delay_random; Array<optional<float> > delay_oncc;
331	optional<int> delay_beats; optional<int> stop_beats;
332	optional<int> delay_samples; Array<optional<int> > delay_samples_oncc;
333	optional<int> end;
334	optional<float> loop_crossfade;
335	optional<int> offset; optional<int> offset_random; Array<optional<int> > offset_oncc;
336	loop_mode_t loop_mode;
337	optional<int> loop_start; optional<int> loop_end;
338	optional<int> sync_beats;
339	optional<int> sync_offset;
340
341	// amplifier
342	float volume;
343	float pan;
344	float width;
345	float position;
346	float amp_keytrack; int amp_keycenter; float amp_veltrack; Array<float> amp_velcurve; float amp_random;
347	float rt_decay;
348	Array<float> gain_oncc;
349	int xfin_lokey; int xfin_hikey;
350	int xfout_lokey; int xfout_hikey;
351	curve_t xf_keycurve;
352	int xfin_lovel; int xfin_hivel;
353	int xfout_lovel; int xfout_hivel;
354	curve_t xf_velcurve;
355	Array<int> xfin_locc; Array<int> xfin_hicc;
356	Array<int> xfout_locc; Array<int> xfout_hicc;
357	curve_t xf_cccurve;
358
359	// pitch
360	int transpose;
361	int tune;
362	int pitch_keycenter; int pitch_keytrack; int pitch_veltrack; int pitch_random;
363	int bend_up; int bend_down; int bend_step;
364
365	// filter
366	filter_t fil_type; filter_t fil2_type;
367	optional<float> cutoff; optional<float> cutoff2;
368	Array<int> cutoff_oncc; Array<int> cutoff2_oncc;
369	Array<int> cutoff_smoothcc; Array<int> cutoff2_smoothcc;
370	Array<int> cutoff_stepcc; Array<int> cutoff2_stepcc;
371	Array<int> cutoff_curvecc; Array<int> cutoff2_curvecc;
372	int cutoff_chanaft; int cutoff2_chanaft;
373	int cutoff_polyaft; int cutoff2_polyaft;
374	float resonance; float resonance2;
375	Array<int> resonance_oncc; Array<int> resonance2_oncc;
376	Array<int> resonance_smoothcc; Array<int> resonance2_smoothcc;
377	Array<int> resonance_stepcc; Array<int> resonance2_stepcc;
378	Array<int> resonance_curvecc; Array<int> resonance2_curvecc;
379	int fil_keytrack; int fil2_keytrack;
380	int fil_keycenter; int fil2_keycenter;
381	int fil_veltrack; int fil2_veltrack;
382	int fil_random; int fil2_random;
383
384	// per voice equalizer
385	float eq1_freq; float eq2_freq; float eq3_freq;
386	Array<float> eq1_freq_oncc; Array<float> eq2_freq_oncc; Array<float> eq3_freq_oncc;
387	float eq1_vel2freq; float eq2_vel2freq; float eq3_vel2freq;
388	float eq1_bw; float eq2_bw; float eq3_bw;
389	Array<float> eq1_bw_oncc; Array<float> eq2_bw_oncc; Array<float> eq3_bw_oncc;
390	float eq1_gain; float eq2_gain; float eq3_gain;
391	Array<float> eq1_gain_oncc; Array<float> eq2_gain_oncc; Array<float> eq3_gain_oncc;
392	float eq1_vel2gain; float eq2_vel2gain; float eq3_vel2gain;
393
394	//Deprecated (from version 1)
395	float ampeg_delay, ampeg_start, ampeg_attack, ampeg_hold, ampeg_decay, ampeg_sustain, ampeg_release;
396	float fileg_delay, fileg_start, fileg_attack, fileg_hold, fileg_decay, fileg_sustain, fileg_release;
397	float pitcheg_delay, pitcheg_start, pitcheg_attack, pitcheg_hold, pitcheg_decay, pitcheg_sustain, pitcheg_release;
398	float amplfo_delay, amplfo_fade, amplfo_freq, amplfo_depth;
399	float fillfo_delay, fillfo_fade, fillfo_freq, fillfo_depth;
400	float pitchlfo_delay, pitchlfo_fade, pitchlfo_freq;
401	int pitchlfo_depth;
402
403	// envelope generators
404	LinuxSampler::ArrayList<EG> eg;
405	};
406
407	class Query {
408	public:
409	Query(const Instrument& instrument);
410	Region* next();
411	uint8_t chan; // MIDI channel
412	uint8_t key; // MIDI note TODO: or controller
413	uint8_t vel; // MIDI velocity
414	int bend; // MIDI pitch bend
415	uint8_t bpm; // host BPM
416	uint8_t chanaft; // MIDI channel pressure
417	uint8_t polyaft; // MIDI polyphonic aftertouch
418	uint8_t prog; // MIDI program change
419	float rand; // generated random number
420	trigger_t trig; // how it was triggered
421	uint8_t* cc; // all 128 CC values
422	float timer; // time since previous region in the group was triggered
423	bool* sw; // state of region key switches, 128 possible values
424	uint8_t last_sw_key; // last key pressed in the key switch range
425	uint8_t prev_sw_key; // previous note value
426	private:
427	std::vector<Region*>::const_iterator i;
428	std::vector<Region*>::const_iterator regions_end;
429	};
430
431	/////////////////////////////////////////////////////////////
432	// class Region
433
434	/// Defines Region information of an Instrument
435	class Region :
436	public Definition
437	{
438	public:
439	Region();
440	virtual ~Region();
441
442	Sample* pSample;
443	Sample* GetSample(bool create = true);
444	void DestroySampleIfNotUsed();
445
446	Region* GetParent() { return this; }; // needed by EngineBase
447	Instrument* GetInstrument() { return pInstrument; }
448	void SetInstrument(Instrument* pInstrument) { this->pInstrument = pInstrument; }
449
450	bool HasLoop();
451	uint GetLoopStart();
452	uint GetLoopEnd();
453	uint GetLoopCount();
454
455	/// Return true if region is triggered by key
456	bool OnKey(const Query& q);
457
458	/// Return true if region is triggered by control change
459	bool OnControl(uint8_t chan, uint8_t cont, uint8_t val,
460	int bend, uint8_t bpm, uint8_t chanaft, uint8_t polyaft,
461	uint8_t prog, float rand, trigger_t trig, uint8_t* cc,
462	float timer, bool* sw, uint8_t last_sw_key, uint8_t prev_sw_key);
463
464	/// Return an articulation for the current state
465	Articulation* GetArticulation(int bend, uint8_t bpm, uint8_t chanaft, uint8_t polyaft, uint8_t* cc);
466
467	// unique region id
468	int id;
469
470	private:
471	Instrument* pInstrument;
472	int seq_counter;
473	};
474
475	/////////////////////////////////////////////////////////////
476	// class Instrument
477
478	/// Provides all neccessary information for the synthesis of an Instrument
479	class Instrument : public SampleManager
480	{
481	public:
482	Instrument(std::string name = "Unknown", SampleManager* pSampleManager = NULL);
483	virtual ~Instrument();
484
485	std::string GetName() { return name; }
486	SampleManager* GetSampleManager() { return pSampleManager; }
487
488	bool DestroyRegion(Region* pRegion);
489	bool HasKeyBinding(uint8_t key);
490	bool HasKeySwitchBinding(uint8_t key);
491
492	/// List of Regions belonging to this Instrument
493	std::vector<Region*> regions;
494
495	friend class sfz::File;
496
497	private:
498	std::string name;
499	std::vector<bool> KeyBindings;
500	std::vector<bool> KeySwitchBindings;
501	SampleManager* pSampleManager;
502	};
503
504	/////////////////////////////////////////////////////////////
505	// class Group
506
507	/// A Group act just as a template containing Region default values
508	class Group :
509	public Definition
510	{
511	public:
512	Group();
513	virtual ~Group();
514
515	/// Reset Group to default values
516	void Reset();
517
518	/// Create a new Region
519	Region* RegionFactory();
520
521	// id counter
522	int id;
523
524	};
525
526	/////////////////////////////////////////////////////////////
527	// class File
528
529	/// Parses SFZ files and provides abstract access to the data
530	class File
531	{
532	public:
533	/// Load an existing SFZ file
534	File(std::string file, SampleManager* pSampleManager = NULL);
535	virtual ~File();
536
537	/// Returns a pointer to the instrument object
538	Instrument* GetInstrument();
539
540	private:
541	void push_header(std::string token);
542	void push_opcode(std::string token);
543	int parseKey(const std::string& value);
544	EG& eg(int x);
545	EGNode& egnode(int x, int y);
546
547	std::string currentDir;
548	/// Pointer to the Instrument belonging to this file
549	Instrument* _instrument;
550
551	// state variables
552	enum section_t { UNKNOWN, GROUP, REGION, CONTROL };
553	section_t _current_section;
554	Region* _current_region;
555	Group* _current_group;
556	Definition* pCurDef;
557
558	// control header directives
559	std::string default_path;
560	int octave_offset;
561	int note_offset;
562	};
563
564	} // !namespace sfz
565
566	#endif // !LIBSFZ_SFZ_H