gen.h
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上传日期:2020-08-17
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- /* FluidSynth - A Software Synthesizer
- *
- * Copyright (C) 2003 Peter Hanappe and others.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public License
- * as published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- * 02111-1307, USA
- */
- #ifndef _FLUIDSYNTH_GEN_H
- #define _FLUIDSYNTH_GEN_H
- #ifdef __cplusplus
- extern "C" {
- #endif
- /**
- * @file gen.h
- * @brief Functions and defines for SoundFont generator effects.
- */
- /**
- * Generator (effect) numbers (Soundfont 2.01 specifications section 8.1.3)
- */
- enum fluid_gen_type {
- GEN_STARTADDROFS, /**< Sample start address offset (0-32767) */
- GEN_ENDADDROFS, /**< Sample end address offset (-32767-0) */
- GEN_STARTLOOPADDROFS, /**< Sample loop start address offset (-32767-32767) */
- GEN_ENDLOOPADDROFS, /**< Sample loop end address offset (-32767-32767) */
- GEN_STARTADDRCOARSEOFS, /**< Sample start address coarse offset (X 32768) */
- GEN_MODLFOTOPITCH, /**< Modulation LFO to pitch */
- GEN_VIBLFOTOPITCH, /**< Vibrato LFO to pitch */
- GEN_MODENVTOPITCH, /**< Modulation envelope to pitch */
- GEN_FILTERFC, /**< Filter cutoff */
- GEN_FILTERQ, /**< Filter Q */
- GEN_MODLFOTOFILTERFC, /**< Modulation LFO to filter cutoff */
- GEN_MODENVTOFILTERFC, /**< Modulation envelope to filter cutoff */
- GEN_ENDADDRCOARSEOFS, /**< Sample end address coarse offset (X 32768) */
- GEN_MODLFOTOVOL, /**< Modulation LFO to volume */
- GEN_UNUSED1, /**< Unused */
- GEN_CHORUSSEND, /**< Chorus send amount */
- GEN_REVERBSEND, /**< Reverb send amount */
- GEN_PAN, /**< Stereo panning */
- GEN_UNUSED2, /**< Unused */
- GEN_UNUSED3, /**< Unused */
- GEN_UNUSED4, /**< Unused */
- GEN_MODLFODELAY, /**< Modulation LFO delay */
- GEN_MODLFOFREQ, /**< Modulation LFO frequency */
- GEN_VIBLFODELAY, /**< Vibrato LFO delay */
- GEN_VIBLFOFREQ, /**< Vibrato LFO frequency */
- GEN_MODENVDELAY, /**< Modulation envelope delay */
- GEN_MODENVATTACK, /**< Modulation envelope attack */
- GEN_MODENVHOLD, /**< Modulation envelope hold */
- GEN_MODENVDECAY, /**< Modulation envelope decay */
- GEN_MODENVSUSTAIN, /**< Modulation envelope sustain */
- GEN_MODENVRELEASE, /**< Modulation envelope release */
- GEN_KEYTOMODENVHOLD, /**< Key to modulation envelope hold */
- GEN_KEYTOMODENVDECAY, /**< Key to modulation envelope decay */
- GEN_VOLENVDELAY, /**< Volume envelope delay */
- GEN_VOLENVATTACK, /**< Volume envelope attack */
- GEN_VOLENVHOLD, /**< Volume envelope hold */
- GEN_VOLENVDECAY, /**< Volume envelope decay */
- GEN_VOLENVSUSTAIN, /**< Volume envelope sustain */
- GEN_VOLENVRELEASE, /**< Volume envelope release */
- GEN_KEYTOVOLENVHOLD, /**< Key to volume envelope hold */
- GEN_KEYTOVOLENVDECAY, /**< Key to volume envelope decay */
- GEN_INSTRUMENT, /**< Instrument ID (shouldn't be set by user) */
- GEN_RESERVED1, /**< Reserved */
- GEN_KEYRANGE, /**< MIDI note range */
- GEN_VELRANGE, /**< MIDI velocity range */
- GEN_STARTLOOPADDRCOARSEOFS, /**< Sample start loop address coarse offset (X 32768) */
- GEN_KEYNUM, /**< Fixed MIDI note number */
- GEN_VELOCITY, /**< Fixed MIDI velocity value */
- GEN_ATTENUATION, /**< Initial volume attenuation */
- GEN_RESERVED2, /**< Reserved */
- GEN_ENDLOOPADDRCOARSEOFS, /**< Sample end loop address coarse offset (X 32768) */
- GEN_COARSETUNE, /**< Coarse tuning */
- GEN_FINETUNE, /**< Fine tuning */
- GEN_SAMPLEID, /**< Sample ID (shouldn't be set by user) */
- GEN_SAMPLEMODE, /**< Sample mode flags */
- GEN_RESERVED3, /**< Reserved */
- GEN_SCALETUNE, /**< Scale tuning */
- GEN_EXCLUSIVECLASS, /**< Exclusive class number */
- GEN_OVERRIDEROOTKEY, /**< Sample root note override */
- /* the initial pitch is not a "standard" generator. It is not
- * mentioned in the list of generator in the SF2 specifications. It
- * is used, however, as the destination for the default pitch wheel
- * modulator. */
- GEN_PITCH, /**< Pitch (NOTE: Not a real SoundFont generator) */
- GEN_LAST /**< Value defines the count of generators (#fluid_gen_type) */
- };
- /**
- * SoundFont generator structure.
- */
- typedef struct _fluid_gen_t
- {
- unsigned char flags; /**< Is the generator set or not (#fluid_gen_flags) */
- double val; /**< The nominal value */
- double mod; /**< Change by modulators */
- double nrpn; /**< Change by NRPN messages */
- } fluid_gen_t;
- /**
- * Enum value for 'flags' field of #fluid_gen_t (not really flags).
- */
- enum fluid_gen_flags
- {
- GEN_UNUSED, /**< Generator value is not set */
- GEN_SET, /**< Generator value is set */
- GEN_ABS_NRPN /**< Generator is an absolute value */
- };
- FLUIDSYNTH_API int fluid_gen_set_default_values(fluid_gen_t* gen);
- #ifdef __cplusplus
- }
- #endif
- #endif /* _FLUIDSYNTH_GEN_H */