316 lines
14 KiB
C
316 lines
14 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 _FLUIDSYNTH_SYNTH_H
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#define _FLUIDSYNTH_SYNTH_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @file synth.h
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* @brief Embeddable SoundFont synthesizer
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*
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* You create a new synthesizer with new_fluid_synth() and you destroy
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* if with delete_fluid_synth(). Use the settings structure to specify
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* the synthesizer characteristics.
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*
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* You have to load a SoundFont in order to hear any sound. For that
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* you use the fluid_synth_sfload() function.
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*
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* You can use the audio driver functions described below to open
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* the audio device and create a background audio thread.
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*
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* The API for sending MIDI events is probably what you expect:
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* fluid_synth_noteon(), fluid_synth_noteoff(), ...
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*/
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#define FLUID_SYNTH_CHANNEL_INFO_NAME_SIZE 32 /**< Length of channel info name field (including zero terminator) */
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/**
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* Channel information structure for fluid_synth_get_channel_info().
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* @since 1.1.1
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*/
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struct _fluid_synth_channel_info_t
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{
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int assigned : 1; /**< TRUE if a preset is assigned, FALSE otherwise */
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/* Reserved flag bits (at the least 31) */
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int sfont_id; /**< ID of parent SoundFont */
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int bank; /**< MIDI bank number (0-16383) */
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int program; /**< MIDI program number (0-127) */
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char name[FLUID_SYNTH_CHANNEL_INFO_NAME_SIZE]; /**< Channel preset name */
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char reserved[32]; /**< Reserved data for future expansion */
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};
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FLUIDSYNTH_API fluid_synth_t* new_fluid_synth(fluid_settings_t* settings);
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FLUIDSYNTH_API int delete_fluid_synth(fluid_synth_t* synth);
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FLUIDSYNTH_API fluid_settings_t* fluid_synth_get_settings(fluid_synth_t* synth);
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/* MIDI channel messages */
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FLUIDSYNTH_API int fluid_synth_noteon(fluid_synth_t* synth, int chan, int key, int vel);
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FLUIDSYNTH_API int fluid_synth_noteoff(fluid_synth_t* synth, int chan, int key);
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FLUIDSYNTH_API int fluid_synth_cc(fluid_synth_t* synth, int chan, int ctrl, int val);
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FLUIDSYNTH_API int fluid_synth_get_cc(fluid_synth_t* synth, int chan, int ctrl, int* pval);
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FLUIDSYNTH_API int fluid_synth_sysex(fluid_synth_t *synth, const char *data, int len,
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char *response, int *response_len, int *handled, int dryrun);
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FLUIDSYNTH_API int fluid_synth_pitch_bend(fluid_synth_t* synth, int chan, int val);
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FLUIDSYNTH_API int fluid_synth_get_pitch_bend(fluid_synth_t* synth, int chan, int* ppitch_bend);
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FLUIDSYNTH_API int fluid_synth_pitch_wheel_sens(fluid_synth_t* synth, int chan, int val);
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FLUIDSYNTH_API int fluid_synth_get_pitch_wheel_sens(fluid_synth_t* synth, int chan, int* pval);
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FLUIDSYNTH_API int fluid_synth_program_change(fluid_synth_t* synth, int chan, int program);
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FLUIDSYNTH_API int fluid_synth_channel_pressure(fluid_synth_t* synth, int chan, int val);
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FLUIDSYNTH_API int fluid_synth_bank_select(fluid_synth_t* synth, int chan, unsigned int bank);
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FLUIDSYNTH_API int fluid_synth_sfont_select(fluid_synth_t* synth, int chan, unsigned int sfont_id);
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FLUIDSYNTH_API
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int fluid_synth_program_select(fluid_synth_t* synth, int chan, unsigned int sfont_id,
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unsigned int bank_num, unsigned int preset_num);
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FLUIDSYNTH_API int
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fluid_synth_program_select_by_sfont_name (fluid_synth_t* synth, int chan,
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const char *sfont_name, unsigned int bank_num,
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unsigned int preset_num);
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FLUIDSYNTH_API
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int fluid_synth_get_program(fluid_synth_t* synth, int chan, unsigned int* sfont_id,
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unsigned int* bank_num, unsigned int* preset_num);
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FLUIDSYNTH_API int fluid_synth_unset_program (fluid_synth_t *synth, int chan);
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FLUIDSYNTH_API int fluid_synth_get_channel_info (fluid_synth_t *synth, int chan,
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fluid_synth_channel_info_t *info);
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FLUIDSYNTH_API int fluid_synth_program_reset(fluid_synth_t* synth);
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FLUIDSYNTH_API int fluid_synth_system_reset(fluid_synth_t* synth);
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FLUIDSYNTH_API int fluid_synth_all_notes_off(fluid_synth_t* synth, int chan);
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FLUIDSYNTH_API int fluid_synth_all_sounds_off(fluid_synth_t* synth, int chan);
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enum fluid_midi_channel_type
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{
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CHANNEL_TYPE_MELODIC = 0,
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CHANNEL_TYPE_DRUM = 1
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};
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int fluid_synth_set_channel_type(fluid_synth_t* synth, int chan, int type);
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/* Low level access */
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FLUIDSYNTH_API fluid_preset_t* fluid_synth_get_channel_preset(fluid_synth_t* synth, int chan);
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FLUIDSYNTH_API int fluid_synth_start(fluid_synth_t* synth, unsigned int id,
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fluid_preset_t* preset, int audio_chan,
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int midi_chan, int key, int vel);
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FLUIDSYNTH_API int fluid_synth_stop(fluid_synth_t* synth, unsigned int id);
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/* SoundFont management */
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FLUIDSYNTH_API
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int fluid_synth_sfload(fluid_synth_t* synth, const char* filename, int reset_presets);
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FLUIDSYNTH_API int fluid_synth_sfreload(fluid_synth_t* synth, unsigned int id);
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FLUIDSYNTH_API int fluid_synth_sfunload(fluid_synth_t* synth, unsigned int id, int reset_presets);
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FLUIDSYNTH_API int fluid_synth_add_sfont(fluid_synth_t* synth, fluid_sfont_t* sfont);
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FLUIDSYNTH_API void fluid_synth_remove_sfont(fluid_synth_t* synth, fluid_sfont_t* sfont);
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FLUIDSYNTH_API int fluid_synth_sfcount(fluid_synth_t* synth);
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FLUIDSYNTH_API fluid_sfont_t* fluid_synth_get_sfont(fluid_synth_t* synth, unsigned int num);
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FLUIDSYNTH_API fluid_sfont_t* fluid_synth_get_sfont_by_id(fluid_synth_t* synth, unsigned int id);
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FLUIDSYNTH_API fluid_sfont_t *fluid_synth_get_sfont_by_name (fluid_synth_t* synth,
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const char *name);
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FLUIDSYNTH_API int fluid_synth_set_bank_offset(fluid_synth_t* synth, int sfont_id, int offset);
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FLUIDSYNTH_API int fluid_synth_get_bank_offset(fluid_synth_t* synth, int sfont_id);
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/* Reverb */
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FLUIDSYNTH_API void fluid_synth_set_reverb(fluid_synth_t* synth, double roomsize,
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double damping, double width, double level);
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FLUIDSYNTH_API void fluid_synth_set_reverb_on(fluid_synth_t* synth, int on);
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FLUIDSYNTH_API double fluid_synth_get_reverb_roomsize(fluid_synth_t* synth);
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FLUIDSYNTH_API double fluid_synth_get_reverb_damp(fluid_synth_t* synth);
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FLUIDSYNTH_API double fluid_synth_get_reverb_level(fluid_synth_t* synth);
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FLUIDSYNTH_API double fluid_synth_get_reverb_width(fluid_synth_t* synth);
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#define FLUID_REVERB_DEFAULT_ROOMSIZE 0.2f /**< Default reverb room size */
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#define FLUID_REVERB_DEFAULT_DAMP 0.0f /**< Default reverb damping */
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#define FLUID_REVERB_DEFAULT_WIDTH 0.5f /**< Default reverb width */
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#define FLUID_REVERB_DEFAULT_LEVEL 0.9f /**< Default reverb level */
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/* Chorus */
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/**
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* Chorus modulation waveform type.
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*/
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enum fluid_chorus_mod {
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FLUID_CHORUS_MOD_SINE = 0, /**< Sine wave chorus modulation */
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FLUID_CHORUS_MOD_TRIANGLE = 1 /**< Triangle wave chorus modulation */
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};
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FLUIDSYNTH_API void fluid_synth_set_chorus(fluid_synth_t* synth, int nr, double level,
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double speed, double depth_ms, int type);
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FLUIDSYNTH_API void fluid_synth_set_chorus_on(fluid_synth_t* synth, int on);
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FLUIDSYNTH_API int fluid_synth_get_chorus_nr(fluid_synth_t* synth);
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FLUIDSYNTH_API double fluid_synth_get_chorus_level(fluid_synth_t* synth);
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FLUIDSYNTH_API double fluid_synth_get_chorus_speed_Hz(fluid_synth_t* synth);
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FLUIDSYNTH_API double fluid_synth_get_chorus_depth_ms(fluid_synth_t* synth);
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FLUIDSYNTH_API int fluid_synth_get_chorus_type(fluid_synth_t* synth); /* see fluid_chorus_mod */
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#define FLUID_CHORUS_DEFAULT_N 3 /**< Default chorus voice count */
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#define FLUID_CHORUS_DEFAULT_LEVEL 2.0f /**< Default chorus level */
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#define FLUID_CHORUS_DEFAULT_SPEED 0.3f /**< Default chorus speed */
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#define FLUID_CHORUS_DEFAULT_DEPTH 8.0f /**< Default chorus depth */
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#define FLUID_CHORUS_DEFAULT_TYPE FLUID_CHORUS_MOD_SINE /**< Default chorus waveform type */
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/* Audio and MIDI channels */
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FLUIDSYNTH_API int fluid_synth_count_midi_channels(fluid_synth_t* synth);
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FLUIDSYNTH_API int fluid_synth_count_audio_channels(fluid_synth_t* synth);
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FLUIDSYNTH_API int fluid_synth_count_audio_groups(fluid_synth_t* synth);
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FLUIDSYNTH_API int fluid_synth_count_effects_channels(fluid_synth_t* synth);
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/* Synthesis parameters */
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FLUIDSYNTH_API void fluid_synth_set_sample_rate(fluid_synth_t* synth, float sample_rate);
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FLUIDSYNTH_API void fluid_synth_set_gain(fluid_synth_t* synth, float gain);
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FLUIDSYNTH_API float fluid_synth_get_gain(fluid_synth_t* synth);
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FLUIDSYNTH_API int fluid_synth_set_polyphony(fluid_synth_t* synth, int polyphony);
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FLUIDSYNTH_API int fluid_synth_get_polyphony(fluid_synth_t* synth);
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FLUIDSYNTH_API int fluid_synth_get_active_voice_count(fluid_synth_t* synth);
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FLUIDSYNTH_API int fluid_synth_get_internal_bufsize(fluid_synth_t* synth);
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FLUIDSYNTH_API
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int fluid_synth_set_interp_method(fluid_synth_t* synth, int chan, int interp_method);
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/**
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* Synthesis interpolation method.
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*/
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enum fluid_interp {
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FLUID_INTERP_NONE = 0, /**< No interpolation: Fastest, but questionable audio quality */
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FLUID_INTERP_LINEAR = 1, /**< Straight-line interpolation: A bit slower, reasonable audio quality */
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FLUID_INTERP_4THORDER = 4, /**< Fourth-order interpolation, good quality, the default */
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FLUID_INTERP_7THORDER = 7 /**< Seventh-order interpolation */
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};
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#define FLUID_INTERP_DEFAULT FLUID_INTERP_4THORDER /**< Default interpolation method from #fluid_interp. */
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#define FLUID_INTERP_HIGHEST FLUID_INTERP_7THORDER /**< Highest interpolation method from #fluid_interp. */
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/* Generator interface */
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FLUIDSYNTH_API
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int fluid_synth_set_gen(fluid_synth_t* synth, int chan, int param, float value);
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FLUIDSYNTH_API int fluid_synth_set_gen2 (fluid_synth_t* synth, int chan,
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int param, float value,
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int absolute, int normalized);
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FLUIDSYNTH_API float fluid_synth_get_gen(fluid_synth_t* synth, int chan, int param);
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/* Tuning */
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FLUIDSYNTH_API
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int fluid_synth_create_key_tuning(fluid_synth_t* synth, int bank, int prog,
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const char* name, const double* pitch);
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FLUIDSYNTH_API
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int fluid_synth_activate_key_tuning(fluid_synth_t* synth, int bank, int prog,
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const char* name, const double* pitch, int apply);
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FLUIDSYNTH_API
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int fluid_synth_create_octave_tuning(fluid_synth_t* synth, int bank, int prog,
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const char* name, const double* pitch);
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FLUIDSYNTH_API
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int fluid_synth_activate_octave_tuning(fluid_synth_t* synth, int bank, int prog,
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const char* name, const double* pitch, int apply);
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FLUIDSYNTH_API
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int fluid_synth_tune_notes(fluid_synth_t* synth, int bank, int prog,
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int len, const int *keys, const double* pitch, int apply);
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FLUIDSYNTH_API
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int fluid_synth_select_tuning(fluid_synth_t* synth, int chan, int bank, int prog);
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FLUIDSYNTH_API
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int fluid_synth_activate_tuning(fluid_synth_t* synth, int chan, int bank, int prog,
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int apply);
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FLUIDSYNTH_API int fluid_synth_reset_tuning(fluid_synth_t* synth, int chan);
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FLUIDSYNTH_API
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int fluid_synth_deactivate_tuning(fluid_synth_t* synth, int chan, int apply);
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FLUIDSYNTH_API void fluid_synth_tuning_iteration_start(fluid_synth_t* synth);
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FLUIDSYNTH_API
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int fluid_synth_tuning_iteration_next(fluid_synth_t* synth, int* bank, int* prog);
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FLUIDSYNTH_API int fluid_synth_tuning_dump(fluid_synth_t* synth, int bank, int prog,
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char* name, int len, double* pitch);
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/* Misc */
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FLUIDSYNTH_API double fluid_synth_get_cpu_load(fluid_synth_t* synth);
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FLUIDSYNTH_API char* fluid_synth_error(fluid_synth_t* synth);
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/*
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* Synthesizer plugin
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*
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* To create a synthesizer plugin, create the synthesizer as
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* explained above. Once the synthesizer is created you can call
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* any of the functions below to get the audio.
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*/
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FLUIDSYNTH_API int fluid_synth_write_s16(fluid_synth_t* synth, int len,
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void* lout, int loff, int lincr,
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void* rout, int roff, int rincr);
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FLUIDSYNTH_API int fluid_synth_write_float(fluid_synth_t* synth, int len,
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void* lout, int loff, int lincr,
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void* rout, int roff, int rincr);
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FLUIDSYNTH_API int fluid_synth_nwrite_float(fluid_synth_t* synth, int len,
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float** left, float** right,
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float** fx_left, float** fx_right);
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FLUIDSYNTH_API int fluid_synth_process(fluid_synth_t* synth, int len,
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int nin, float** in,
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int nout, float** out);
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/**
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* Type definition of the synthesizer's audio callback function.
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* @param synth FluidSynth instance
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* @param len Count of audio frames to synthesize
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* @param out1 Array to store left channel of audio to
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* @param loff Offset index in 'out1' for first sample
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* @param lincr Increment between samples stored to 'out1'
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* @param out2 Array to store right channel of audio to
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* @param roff Offset index in 'out2' for first sample
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* @param rincr Increment between samples stored to 'out2'
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*/
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typedef int (*fluid_audio_callback_t)(fluid_synth_t* synth, int len,
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void* out1, int loff, int lincr,
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void* out2, int roff, int rincr);
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/* Synthesizer's interface to handle SoundFont loaders */
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FLUIDSYNTH_API void fluid_synth_add_sfloader(fluid_synth_t* synth, fluid_sfloader_t* loader);
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FLUIDSYNTH_API fluid_voice_t* fluid_synth_alloc_voice(fluid_synth_t* synth, fluid_sample_t* sample,
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int channum, int key, int vel);
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FLUIDSYNTH_API void fluid_synth_start_voice(fluid_synth_t* synth, fluid_voice_t* voice);
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FLUIDSYNTH_API void fluid_synth_get_voicelist(fluid_synth_t* synth,
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fluid_voice_t* buf[], int bufsize, int ID);
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FLUIDSYNTH_API int fluid_synth_handle_midi_event(void* data, fluid_midi_event_t* event);
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FLUIDSYNTH_API void fluid_synth_set_midi_router(fluid_synth_t* synth,
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fluid_midi_router_t* router);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _FLUIDSYNTH_SYNTH_H */
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