/[svn]/linuxsampler/trunk/src/engines/sfz/sfz.h
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Sun Apr 11 10:20:24 2010 UTC (13 years, 11 months ago) by persson
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* sfz engine: added support for amp_veltrack and amp_velcurve_N.
  Fine-tuned the default velocity curve.

1 iliev 2012 /***************************************************************************
2     * *
3     * LinuxSampler - modular, streaming capable sampler *
4     * *
5 persson 2055 * Copyright (C) 2008 Anders Dahnielson <anders@dahnielson.com> *
6     * Copyright (C) 2009 - 2010 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 2055
51 iliev 2021 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 iliev 2012
57     // Enumerations
58     enum sw_vel_t { VEL_CURRENT, VEL_PREVIOUS };
59     enum off_mode_t { OFF_FAST, OFF_NORMAL };
60 iliev 2021 enum loop_mode_t { NO_LOOP, ONE_SHOT, LOOP_CONTINUOUS, LOOP_SUSTAIN };
61 iliev 2012 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 iliev 2021 class SampleManager : public LinuxSampler::SampleManager<Sample, Region> {
71 iliev 2012 public:
72 iliev 2021 Sample* FindSample(std::string samplePath);
73 iliev 2012
74     protected:
75 iliev 2021 virtual void OnSampleInUse(Sample* pSample) {
76 iliev 2012 pSample->Open();
77     }
78    
79 iliev 2021 virtual void OnSampleInNotUse(Sample* pSample) {
80 iliev 2012 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 persson 2055 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 iliev 2012 /////////////////////////////////////////////////////////////
241     // class Definition
242    
243     // Base definition used by groups and regions
244     class Definition
245     {
246     public:
247     Definition();
248     virtual ~Definition();
249    
250     // sample definition
251     std::string sample;
252    
253     // input controls
254     int lochan; int hichan;
255     int lokey; int hikey;
256     int lovel; int hivel;
257     std::vector<int> locc; std::vector<int> hicc;
258     int lobend; int hibend;
259     int lobpm; int hibpm;
260     int lochanaft; int hichanaft;
261     int lopolyaft; int hipolyaft;
262     int loprog; int hiprog;
263     float lorand; float hirand;
264     float lotimer; float hitimer;
265    
266     int seq_length;
267     int seq_position;
268    
269     std::vector<int> start_locc; std::vector<int> start_hicc;
270     std::vector<int> stop_locc; std::vector<int> stop_hicc;
271    
272     int sw_lokey; int sw_hikey;
273     int sw_last;
274     int sw_down;
275     int sw_up;
276     int sw_previous;
277     sw_vel_t sw_vel;
278    
279     trigger_t trigger;
280    
281 iliev 2027 uint group;
282 iliev 2012 optional<int> off_by;
283     off_mode_t off_mode;
284    
285     std::vector<int> on_locc; std::vector<int> on_hicc;
286    
287     // sample player
288     optional<int> count;
289     optional<float> delay; optional<float> delay_random; std::vector<optional<float> > delay_oncc;
290     optional<int> delay_beats; optional<int> stop_beats;
291     optional<int> delay_samples; std::vector<optional<int> > delay_samples_oncc;
292     optional<int> end;
293     optional<float> loop_crossfade;
294     optional<int> offset; optional<int> offset_random; std::vector<optional<int> > offset_oncc;
295     loop_mode_t loop_mode;
296     optional<int> loop_start; optional<int> loop_end;
297     optional<int> sync_beats;
298     optional<int> sync_offset;
299    
300     // amplifier
301     float volume;
302     float pan;
303     float width;
304     float position;
305 persson 2082 float amp_keytrack; int amp_keycenter; float amp_veltrack; std::vector<float> amp_velcurve; float amp_random;
306 iliev 2012 float rt_decay;
307     std::vector<float> gain_oncc;
308     int xfin_lokey; int xfin_hikey;
309     int xfout_lokey; int xfout_hikey;
310     curve_t xf_keycurve;
311     int xfin_lovel; int xfin_hivel;
312     int xfout_lovel; int xfout_hivel;
313     curve_t xf_velcurve;
314     std::vector<int> xfin_locc; std::vector<int> xfin_hicc;
315     std::vector<int> xfout_locc; std::vector<int> xfout_hicc;
316     curve_t xf_cccurve;
317    
318     // pitch
319     int transpose;
320     int tune;
321     int pitch_keycenter; int pitch_keytrack; int pitch_veltrack; int pitch_random;
322     int bend_up; int bend_down; int bend_step;
323    
324     // filter
325     filter_t fil_type; filter_t fil2_type;
326     optional<float> cutoff; optional<float> cutoff2;
327     std::vector<int> cutoff_oncc; std::vector<int> cutoff2_oncc;
328     std::vector<int> cutoff_smoothcc; std::vector<int> cutoff2_smoothcc;
329     std::vector<int> cutoff_stepcc; std::vector<int> cutoff2_stepcc;
330     std::vector<int> cutoff_curvecc; std::vector<int> cutoff2_curvecc;
331     int cutoff_chanaft; int cutoff2_chanaft;
332     int cutoff_polyaft; int cutoff2_polyaft;
333     float resonance; float resonance2;
334     std::vector<int> resonance_oncc; std::vector<int> resonance2_oncc;
335     std::vector<int> resonance_smoothcc; std::vector<int> resonance2_smoothcc;
336     std::vector<int> resonance_stepcc; std::vector<int> resonance2_stepcc;
337     std::vector<int> resonance_curvecc; std::vector<int> resonance2_curvecc;
338     int fil_keytrack; int fil2_keytrack;
339     int fil_keycenter; int fil2_keycenter;
340     int fil_veltrack; int fil2_veltrack;
341     int fil_random; int fil2_random;
342    
343     // per voice equalizer
344     float eq1_freq; float eq2_freq; float eq3_freq;
345     std::vector<float> eq1_freq_oncc; std::vector<float> eq2_freq_oncc; std::vector<float> eq3_freq_oncc;
346     float eq1_vel2freq; float eq2_vel2freq; float eq3_vel2freq;
347     float eq1_bw; float eq2_bw; float eq3_bw;
348     std::vector<float> eq1_bw_oncc; std::vector<float> eq2_bw_oncc; std::vector<float> eq3_bw_oncc;
349     float eq1_gain; float eq2_gain; float eq3_gain;
350     std::vector<float> eq1_gain_oncc; std::vector<float> eq2_gain_oncc; std::vector<float> eq3_gain_oncc;
351     float eq1_vel2gain; float eq2_vel2gain; float eq3_vel2gain;
352 iliev 2018
353     //Deprecated (from version 1)
354     float ampeg_delay, ampeg_start, ampeg_attack, ampeg_hold, ampeg_decay, ampeg_sustain, ampeg_release;
355     float fileg_delay, fileg_start, fileg_attack, fileg_hold, fileg_decay, fileg_sustain, fileg_release;
356     float pitcheg_delay, pitcheg_start, pitcheg_attack, pitcheg_hold, pitcheg_decay, pitcheg_sustain, pitcheg_release;
357 persson 2072 float amplfo_delay, amplfo_fade, amplfo_freq, amplfo_depth;
358     float fillfo_delay, fillfo_fade, fillfo_freq, fillfo_depth;
359     float pitchlfo_delay, pitchlfo_fade, pitchlfo_freq;
360     int pitchlfo_depth;
361 persson 2055
362     // envelope generators
363     LinuxSampler::ArrayList<EG> eg;
364 iliev 2012 };
365    
366     /////////////////////////////////////////////////////////////
367     // class Region
368    
369     /// Defines Region information of an Instrument
370     class Region :
371     public Definition
372     {
373     public:
374     Region();
375     virtual ~Region();
376    
377 iliev 2021 Sample* pSample;
378     Sample* GetSample(bool create = true);
379 iliev 2012 void DestroySampleIfNotUsed();
380    
381     Region* GetParent() { return this; }; // needed by EngineBase
382     Instrument* GetInstrument() { return pInstrument; }
383     void SetInstrument(Instrument* pInstrument) { this->pInstrument = pInstrument; }
384    
385 iliev 2021 bool HasLoop();
386     uint GetLoopStart();
387     uint GetLoopEnd();
388     uint GetLoopCount();
389    
390 iliev 2012 /// Return true if region is triggered by key
391     bool OnKey(uint8_t chan, uint8_t key, uint8_t vel,
392     int bend, uint8_t bpm, uint8_t chanaft, uint8_t polyaft,
393     uint8_t prog, float rand, trigger_t trig, uint8_t* cc,
394 persson 2072 float timer, bool* sw, uint8_t last_sw_key, uint8_t prev_sw_key);
395 iliev 2012
396     /// Return true if region is triggered by control change
397     bool OnControl(uint8_t chan, uint8_t cont, uint8_t val,
398     int bend, uint8_t bpm, uint8_t chanaft, uint8_t polyaft,
399     uint8_t prog, float rand, trigger_t trig, uint8_t* cc,
400 persson 2072 float timer, bool* sw, uint8_t last_sw_key, uint8_t prev_sw_key);
401 iliev 2012
402     /// Return an articulation for the current state
403     Articulation* GetArticulation(int bend, uint8_t bpm, uint8_t chanaft, uint8_t polyaft, uint8_t* cc);
404    
405     // unique region id
406     int id;
407    
408     private:
409     Instrument* pInstrument;
410 persson 2072 int seq_counter;
411 iliev 2012 };
412    
413     /////////////////////////////////////////////////////////////
414     // class Instrument
415    
416     /// Provides all neccessary information for the synthesis of an Instrument
417     class Instrument : public SampleManager
418     {
419     public:
420     Instrument(std::string name = "Unknown", SampleManager* pSampleManager = NULL);
421     virtual ~Instrument();
422    
423     std::string GetName() { return name; }
424     SampleManager* GetSampleManager() { return pSampleManager; }
425    
426     /**
427     * @returns All regions that are triggered by key
428     */
429     std::vector<Region*> GetRegionsOnKey (
430     uint8_t chan, uint8_t key, uint8_t vel,
431     int bend, uint8_t bpm, uint8_t chanaft, uint8_t polyaft,
432     uint8_t prog, float rand, trigger_t trig, uint8_t* cc,
433 persson 2072 float timer, bool* sw, uint8_t last_sw_key, uint8_t prev_sw_key
434 iliev 2012 );
435    
436     bool DestroyRegion(Region* pRegion);
437     bool HasKeyBinding(uint8_t key);
438     bool HasKeySwitchBinding(uint8_t key);
439    
440     /// List of Regions belonging to this Instrument
441     std::vector<Region*> regions;
442    
443     friend class sfz::File;
444    
445     private:
446     std::string name;
447     std::vector<bool> KeyBindings;
448     std::vector<bool> KeySwitchBindings;
449     SampleManager* pSampleManager;
450     };
451    
452     /////////////////////////////////////////////////////////////
453     // class Group
454    
455     /// A Group act just as a template containing Region default values
456     class Group :
457     public Definition
458     {
459     public:
460     Group();
461     virtual ~Group();
462    
463     /// Reset Group to default values
464     void Reset();
465    
466     /// Create a new Region
467     Region* RegionFactory();
468    
469     // id counter
470     int id;
471    
472     };
473    
474     /////////////////////////////////////////////////////////////
475     // class File
476    
477     /// Parses SFZ files and provides abstract access to the data
478     class File
479     {
480     public:
481     /// Load an existing SFZ file
482     File(std::string file, SampleManager* pSampleManager = NULL);
483     virtual ~File();
484    
485     /// Returns a pointer to the instrument object
486     Instrument* GetInstrument();
487    
488     private:
489     void push_header(std::string token);
490     void push_opcode(std::string token);
491 persson 2058 int parseKey(const std::string& value);
492 persson 2055 EG& eg(int x);
493     EGNode& egnode(int x, int y);
494 iliev 2012
495     std::string currentDir;
496     /// Pointer to the Instrument belonging to this file
497     Instrument* _instrument;
498    
499     // state variables
500     enum section_t { UNKNOWN, GROUP, REGION, CONTROL };
501     section_t _current_section;
502     Region* _current_region;
503     Group* _current_group;
504     Definition* pCurDef;
505    
506     // control header directives
507     std::string default_path;
508     int octave_offset;
509     int note_offset;
510     };
511    
512     } // !namespace sfz
513    
514     #endif // !LIBSFZ_SFZ_H

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