150 lines
6.6 KiB
C
150 lines
6.6 KiB
C
/* FluidSynth - A Software Synthesizer
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*
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* Copyright (C) 2003 Peter Hanappe and others.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public License
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* as published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*/
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#ifndef _FLUID_CHAN_H
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#define _FLUID_CHAN_H
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#include "fluidsynth_priv.h"
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#include "fluid_midi.h"
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#include "fluid_tuning.h"
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/*
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* fluid_channel_t
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*
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* Mutual exclusion notes (as of 1.1.2):
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* None - everything should have been synchronized by the synth.
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*/
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struct _fluid_channel_t
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{
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fluid_mutex_t mutex; /* Lock for thread sensitive parameters */
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fluid_synth_t* synth; /**< Parent synthesizer instance */
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int channum; /**< MIDI channel number */
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int sfont_bank_prog; /**< SoundFont ID (bit 21-31), bank (bit 7-20), program (bit 0-6) */
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fluid_preset_t* preset; /**< Selected preset */
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int key_pressure; /**< MIDI key pressure */
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int channel_pressure; /**< MIDI channel pressure */
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int pitch_bend; /**< Current pitch bend value */
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int pitch_wheel_sensitivity; /**< Current pitch wheel sensitivity */
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int cc[128]; /**< MIDI controller values */
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/* Sostenuto order id gives the order of SostenutoOn event.
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This value is useful to known when the sostenuto pedal is depressed
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(before or after a key note). We need to compare SostenutoOrderId with voice id.
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*/
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unsigned int sostenuto_orderid;
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int interp_method; /**< Interpolation method (enum fluid_interp) */
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fluid_tuning_t* tuning; /**< Micro tuning */
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int tuning_bank; /**< Current tuning bank number */
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int tuning_prog; /**< Current tuning program number */
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/* NRPN system */
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int nrpn_select; /* Generator ID of SoundFont NRPN message */
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int nrpn_active; /* 1 if data entry CCs are for NRPN, 0 if RPN */
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/* The values of the generators, set by NRPN messages, or by
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* fluid_synth_set_gen(), are cached in the channel so they can be
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* applied to future notes. They are copied to a voice's generators
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* in fluid_voice_init(), which calls fluid_gen_init(). */
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fluid_real_t gen[GEN_LAST];
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/* By default, the NRPN values are relative to the values of the
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* generators set in the SoundFont. For example, if the NRPN
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* specifies an attack of 100 msec then 100 msec will be added to the
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* combined attack time of the sound font and the modulators.
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*
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* However, it is useful to be able to specify the generator value
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* absolutely, completely ignoring the generators of the SoundFont
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* and the values of modulators. The gen_abs field, is a boolean
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* flag indicating whether the NRPN value is absolute or not.
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*/
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char gen_abs[GEN_LAST];
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/* Drum channel flag, CHANNEL_TYPE_MELODIC, or CHANNEL_TYPE_DRUM. */
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int channel_type;
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};
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fluid_channel_t* new_fluid_channel(fluid_synth_t* synth, int num);
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void fluid_channel_init_ctrl(fluid_channel_t* chan, int is_all_ctrl_off);
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int delete_fluid_channel(fluid_channel_t* chan);
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void fluid_channel_reset(fluid_channel_t* chan);
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int fluid_channel_set_preset(fluid_channel_t* chan, fluid_preset_t* preset);
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fluid_preset_t* fluid_channel_get_preset(fluid_channel_t* chan);
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void fluid_channel_set_sfont_bank_prog(fluid_channel_t* chan, int sfont,
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int bank, int prog);
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void fluid_channel_set_bank_lsb(fluid_channel_t* chan, int banklsb);
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void fluid_channel_set_bank_msb(fluid_channel_t* chan, int bankmsb);
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void fluid_channel_get_sfont_bank_prog(fluid_channel_t* chan, int *sfont,
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int *bank, int *prog);
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int fluid_channel_get_num(fluid_channel_t* chan);
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void fluid_channel_set_interp_method(fluid_channel_t* chan, int new_method);
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int fluid_channel_get_interp_method(fluid_channel_t* chan);
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#define fluid_channel_get_preset(chan) ((chan)->preset)
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#define fluid_channel_set_cc(chan, num, val) \
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((chan)->cc[num] = (val))
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#define fluid_channel_get_cc(chan, num) \
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((chan)->cc[num])
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#define fluid_channel_get_key_pressure(chan) \
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((chan)->key_pressure)
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#define fluid_channel_set_key_pressure(chan, val) \
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((chan)->key_pressure = (val))
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#define fluid_channel_get_channel_pressure(chan) \
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((chan)->channel_pressure)
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#define fluid_channel_set_channel_pressure(chan, val) \
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((chan)->channel_pressure = (val))
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#define fluid_channel_get_pitch_bend(chan) \
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((chan)->pitch_bend)
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#define fluid_channel_set_pitch_bend(chan, val) \
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((chan)->pitch_bend = (val))
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#define fluid_channel_get_pitch_wheel_sensitivity(chan) \
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((chan)->pitch_wheel_sensitivity)
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#define fluid_channel_set_pitch_wheel_sensitivity(chan, val) \
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((chan)->pitch_wheel_sensitivity = (val))
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#define fluid_channel_get_num(chan) ((chan)->channum)
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#define fluid_channel_set_interp_method(chan, new_method) \
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((chan)->interp_method = (new_method))
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#define fluid_channel_get_interp_method(chan) \
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((chan)->interp_method);
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#define fluid_channel_set_tuning(_c, _t) { (_c)->tuning = _t; }
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#define fluid_channel_has_tuning(_c) ((_c)->tuning != NULL)
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#define fluid_channel_get_tuning(_c) ((_c)->tuning)
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#define fluid_channel_get_tuning_bank(chan) \
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((chan)->tuning_bank)
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#define fluid_channel_set_tuning_bank(chan, bank) \
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((chan)->tuning_bank = (bank))
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#define fluid_channel_get_tuning_prog(chan) \
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((chan)->tuning_prog)
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#define fluid_channel_set_tuning_prog(chan, prog) \
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((chan)->tuning_prog = (prog))
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#define fluid_channel_sustained(_c) ((_c)->cc[SUSTAIN_SWITCH] >= 64)
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#define fluid_channel_sostenuto(_c) ((_c)->cc[SOSTENUTO_SWITCH] >= 64)
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#define fluid_channel_set_gen(_c, _n, _v, _a) { (_c)->gen[_n] = _v; (_c)->gen_abs[_n] = _a; }
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#define fluid_channel_get_gen(_c, _n) ((_c)->gen[_n])
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#define fluid_channel_get_gen_abs(_c, _n) ((_c)->gen_abs[_n])
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#define fluid_channel_get_min_note_length_ticks(chan) \
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((chan)->synth->min_note_length_ticks)
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#endif /* _FLUID_CHAN_H */
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