src/kits/midi/SoftSynth.h

   1 /*
   2  * Copyright 2006-2014, Haiku.
   3  *
   4  * Copyright (c) 2004-2005 Matthijs Hollemans
   5  * Copyright (c) 2003 Jerome Leveque
   6  * Distributed under the terms of the MIT License.
   7  *
   8  * Authors:
   9  *              Jérôme Duval
  10  *              Jérôme Leveque
  11  *              Matthijs Hollemans
  12  *              Pete Goodeve
  13  */
  14
  15 #ifndef _SOFT_SYNTH_H
  16 #define _SOFT_SYNTH_H
  17
  18 /*
  19         This version of SoftSynth is a wrapper libfluidsynth.so.
  20  */
  21
  22 #include <fluidsynth.h>
  23 #include <Midi.h>
  24 #include <SoundPlayer.h>
  25 #include <Synth.h>
  26
  27 class BMidiConsumer;
  28 class BMidiSynth;
  29 class BSynth;
  30
  31 namespace BPrivate {
  32
  33 class BSoftSynth {
  34 public:
  35         bool InitCheck();
  36
  37         void Unload();
  38         bool IsLoaded() const;
  39
  40         status_t SetDefaultInstrumentsFile();
  41         status_t SetInstrumentsFile(const char* path);
  42
  43         status_t LoadAllInstruments();
  44         status_t LoadInstrument(int16 instrument);
  45         status_t UnloadInstrument(int16 instrument);
  46         status_t RemapInstrument(int16 from, int16 to);
  47         void FlushInstrumentCache(bool startStopCache);
  48
  49         void SetVolume(double volume);
  50         double Volume(void) const;
  51
  52         status_t SetSamplingRate(int32 rate);
  53         int32 SamplingRate() const;
  54
  55         status_t SetInterpolation(interpolation_mode mode);
  56         interpolation_mode Interpolation() const;
  57
  58         status_t EnableReverb(bool enabled);
  59         bool IsReverbEnabled() const;
  60         void SetReverb(reverb_mode mode);
  61         reverb_mode Reverb() const;
  62
  63         status_t SetMaxVoices(int32 max);
  64         int16 MaxVoices(void) const;
  65
  66         status_t SetLimiterThreshold(int32 threshold);
  67         int16 LimiterThreshold(void) const;
  68
  69         void Pause(void);
  70         void Resume(void);
  71
  72         void NoteOff(uchar, uchar, uchar, uint32);
  73         void NoteOn(uchar, uchar, uchar, uint32);
  74         void KeyPressure(uchar, uchar, uchar, uint32);
  75         void ControlChange(uchar, uchar, uchar, uint32);
  76         void ProgramChange(uchar, uchar, uint32);
  77         void ChannelPressure(uchar, uchar, uint32);
  78         void PitchBend(uchar, uchar, uchar, uint32);
  79         void SystemExclusive(void*, size_t, uint32);
  80         void SystemCommon(uchar, uchar, uchar, uint32);
  81         void SystemRealTime(uchar, uint32);
  82         void TempoChange(int32, uint32);
  83         void AllNotesOff(bool, uint32);
  84
  85 private:
  86
  87         friend class ::BSynth;
  88         friend class ::BMidiSynth;
  89
  90         BSoftSynth();
  91         ~BSoftSynth();
  92
  93         void _Init();
  94         void _Done();
  95         static void PlayBuffer(void* cookie, void* data, size_t size,
  96                         const media_raw_audio_format& format);
  97
  98         bool fInitCheck;
  99         char* fInstrumentsFile;
 100         int32 fSampleRate;
 101         interpolation_mode fInterpMode;
 102         int16 fMaxVoices;
 103         int16 fLimiterThreshold;
 104         reverb_mode fReverbMode;
 105         bool fReverbEnabled;
 106
 107         fluid_synth_t* fSynth;
 108         fluid_settings_t* fSettings;
 109
 110         BSoundPlayer* fSoundPlayer;
 111
 112         float* fMonitor;
 113         size_t fMonitorSize;
 114         int16 fMonitorChans;
 115 };
 116
 117 } // namespace BPrivate
 118
 119 #endif // _SOFT_SYNTH_H