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Diffstat (limited to 'muse2/synti/organ/organ.h')
| -rw-r--r-- | muse2/synti/organ/organ.h | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/muse2/synti/organ/organ.h b/muse2/synti/organ/organ.h new file mode 100644 index 00000000..308646e1 --- /dev/null +++ b/muse2/synti/organ/organ.h @@ -0,0 +1,198 @@ +//========================================================= +// MusE +// Linux Music Editor +// $Id: organ.h,v 1.5.2.3 2009/11/19 04:20:33 terminator356 Exp $ +// +// Parts of this file taken from: +// Organ - Additive Organ Synthesizer Voice +// Copyright (c) 1999, 2000 David A. Bartold +// +// (C) Copyright 2001-2004 Werner Schweer (ws@seh.de) +//========================================================= + +#ifndef __ORGAN_H__ +#define __ORGAN_H__ + +#include "muse/midictrl.h" +#include "libsynti/mess.h" + +#define RESOLUTION (16384*2) +#define VOICES 128 // max polyphony + +class OrganGui; + +static const int MAX_ATTENUATION = 960; + +enum EnvelopeState { + ATTACK, + DECAY, + SUSTAIN, + RELEASE, + OFF + }; + +//--------------------------------------------------------- +// Envelope +//--------------------------------------------------------- + +struct Envelope { + int ticks; // len of segment + int error, delta, schritt; + int y, yinc; + + void set(int t, int y1, int y2) { + ticks = t; + y = y1; + int dy = y2 - y1; + int dx = t; + error = -dx; + schritt = 2*dx; + if (dy < 0) { + yinc = -1; + delta = -2 * dy; + } + else { + yinc = 1; + delta = 2 * dy; + } + } + + // return false on envelope end + bool step(int* a) { + *a = y; + if (ticks == 0) + return false; + error += delta; + while (error > 0) { + y += yinc; + error -= schritt; + } + --ticks; + return true; + } + }; + +static const int HARM0 = 0 + CTRL_RPN14_OFFSET; +static const int HARM1 = 1 + CTRL_RPN14_OFFSET; +static const int HARM2 = 2 + CTRL_RPN14_OFFSET; +static const int HARM3 = 3 + CTRL_RPN14_OFFSET; +static const int HARM4 = 4 + CTRL_RPN14_OFFSET; +static const int HARM5 = 5 + CTRL_RPN14_OFFSET; +static const int ATTACK_LO = 6 + CTRL_RPN14_OFFSET; +static const int DECAY_LO = 7 + CTRL_RPN14_OFFSET; +static const int SUSTAIN_LO = 8 + CTRL_RPN14_OFFSET; +static const int RELEASE_LO = 9 + CTRL_RPN14_OFFSET; +static const int ATTACK_HI = 10 + CTRL_RPN14_OFFSET; +static const int DECAY_HI = 11 + CTRL_RPN14_OFFSET; +static const int SUSTAIN_HI = 12 + CTRL_RPN14_OFFSET; +static const int RELEASE_HI = 13 + CTRL_RPN14_OFFSET; +static const int BRASS = 14 + CTRL_RPN14_OFFSET; +static const int FLUTE = 15 + CTRL_RPN14_OFFSET; +static const int REED = 16 + CTRL_RPN14_OFFSET; +static const int VELO = 17 + CTRL_RPN14_OFFSET; + +//--------------------------------------------------------- +// SynthCtrl +//--------------------------------------------------------- + +struct SynthCtrl { + const char* name; + int num; + int val; + }; + +//--------------------------------------------------------- +// Voice +//--------------------------------------------------------- + +struct Voice { + bool isOn; + int pitch; + int channel; + + double velocity; + + int state1, state2; + Envelope envL1, envL2, envL3; + Envelope envH1, envH2, envH3; + + unsigned harm0_accum; + unsigned harm1_accum; + unsigned harm2_accum; + unsigned harm3_accum; + unsigned harm4_accum; + unsigned harm5_accum; + }; + +//--------------------------------------------------------- +// Preset +//--------------------------------------------------------- + +struct Preset { + char* name; + bool brass, flute, reed; + int attack0, attack1; + int release0, release1; + int decay0, decay1; + double harm0, harm1, harm2, harm3, harm4, harm5; + bool velo; + }; + +//--------------------------------------------------------- +// Organ +//--------------------------------------------------------- + +class Organ : public Mess { + static int useCount; + + static double cb2amp_tab[MAX_ATTENUATION]; + static unsigned freq256[128]; + static double cb2amp(int cb); + + int* idata; // buffer for init data + + bool brass, flute, reed; + int attack0, attack1; + int release0, release1; + int decay0, decay1; // ticks + int sustain0, sustain1; // centibel + bool velo; + double volume; + + double harm0, harm1, harm2, harm3, harm4, harm5; + + Voice voices[VOICES]; + + static float* sine_table; + static float* g_triangle_table; + static float* g_pulse_table; + + void noteoff(int channel, int pitch); + void setController(int ctrl, int val); + + + OrganGui* gui; + + public: + virtual void processMessages(); + virtual void process(float**, int, int); + virtual bool playNote(int channel, int pitch, int velo); + virtual bool setController(int channel, int ctrl, int val); + + virtual int getControllerInfo(int, const char**, int*, int*, int*, int*) const; + virtual void getInitData(int*, const unsigned char**) const; + + virtual bool guiVisible() const; + virtual void showGui(bool); + virtual bool hasGui() const { return true; } + virtual void getGeometry(int* x, int* y, int* w, int* h) const; + virtual void setGeometry(int x, int y, int w, int h); + virtual bool sysex(int, const unsigned char*); + static SynthCtrl synthCtrl[]; + Organ(int sampleRate); + ~Organ(); + bool init(const char* name); + }; + +#endif + |