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Diffstat (limited to 'libs/fluidsynth/fluidsynth/mod.h')
| -rw-r--r-- | libs/fluidsynth/fluidsynth/mod.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/libs/fluidsynth/fluidsynth/mod.h b/libs/fluidsynth/fluidsynth/mod.h new file mode 100644 index 0000000000..e34309546b --- /dev/null +++ b/libs/fluidsynth/fluidsynth/mod.h @@ -0,0 +1,112 @@ +/* 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 + * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA + */ + +#ifndef _FLUIDSYNTH_MOD_H +#define _FLUIDSYNTH_MOD_H + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @file mod.h + * @brief SoundFont modulator functions and constants. + */ + +#define FLUID_NUM_MOD 64 /**< Maximum number of modulators in a voice */ + +/** + * Modulator structure. See SoundFont 2.04 PDF section 8.2. + */ +struct _fluid_mod_t +{ + unsigned char dest; /**< Destination generator to control */ + unsigned char src1; /**< Source controller 1 */ + unsigned char flags1; /**< Source controller 1 flags */ + unsigned char src2; /**< Source controller 2 */ + unsigned char flags2; /**< Source controller 2 flags */ + double amount; /**< Multiplier amount */ + /* The 'next' field allows to link modulators into a list. It is + * not used in fluid_voice.c, there each voice allocates memory for a + * fixed number of modulators. Since there may be a huge number of + * different zones, this is more efficient. + */ + fluid_mod_t * next; +}; + +/** + * Flags defining the polarity, mapping function and type of a modulator source. + * Compare with SoundFont 2.04 PDF section 8.2. + * + * Note: Bit values do not correspond to the SoundFont spec! Also note that + * #FLUID_MOD_GC and #FLUID_MOD_CC are in the flags field instead of the source field. + */ +enum fluid_mod_flags +{ + FLUID_MOD_POSITIVE = 0, /**< Mapping function is positive */ + FLUID_MOD_NEGATIVE = 1, /**< Mapping function is negative */ + FLUID_MOD_UNIPOLAR = 0, /**< Mapping function is unipolar */ + FLUID_MOD_BIPOLAR = 2, /**< Mapping function is bipolar */ + FLUID_MOD_LINEAR = 0, /**< Linear mapping function */ + FLUID_MOD_CONCAVE = 4, /**< Concave mapping function */ + FLUID_MOD_CONVEX = 8, /**< Convex mapping function */ + FLUID_MOD_SWITCH = 12, /**< Switch (on/off) mapping function */ + FLUID_MOD_GC = 0, /**< General controller source type (#fluid_mod_src) */ + FLUID_MOD_CC = 16 /**< MIDI CC controller (source will be a MIDI CC number) */ +}; + +/** + * General controller (if #FLUID_MOD_GC in flags). This + * corresponds to SoundFont 2.04 PDF section 8.2.1 + */ +enum fluid_mod_src +{ + FLUID_MOD_NONE = 0, /**< No source controller */ + FLUID_MOD_VELOCITY = 2, /**< MIDI note-on velocity */ + FLUID_MOD_KEY = 3, /**< MIDI note-on note number */ + FLUID_MOD_KEYPRESSURE = 10, /**< MIDI key pressure */ + FLUID_MOD_CHANNELPRESSURE = 13, /**< MIDI channel pressure */ + FLUID_MOD_PITCHWHEEL = 14, /**< Pitch wheel */ + FLUID_MOD_PITCHWHEELSENS = 16 /**< Pitch wheel sensitivity */ +}; + +FLUIDSYNTH_API fluid_mod_t* fluid_mod_new(void); +FLUIDSYNTH_API void fluid_mod_delete(fluid_mod_t * mod); + +FLUIDSYNTH_API void fluid_mod_set_source1(fluid_mod_t* mod, int src, int flags); +FLUIDSYNTH_API void fluid_mod_set_source2(fluid_mod_t* mod, int src, int flags); +FLUIDSYNTH_API void fluid_mod_set_dest(fluid_mod_t* mod, int dst); +FLUIDSYNTH_API void fluid_mod_set_amount(fluid_mod_t* mod, double amount); + +FLUIDSYNTH_API int fluid_mod_get_source1(fluid_mod_t* mod); +FLUIDSYNTH_API int fluid_mod_get_flags1(fluid_mod_t* mod); +FLUIDSYNTH_API int fluid_mod_get_source2(fluid_mod_t* mod); +FLUIDSYNTH_API int fluid_mod_get_flags2(fluid_mod_t* mod); +FLUIDSYNTH_API int fluid_mod_get_dest(fluid_mod_t* mod); +FLUIDSYNTH_API double fluid_mod_get_amount(fluid_mod_t* mod); + +FLUIDSYNTH_API int fluid_mod_test_identity(fluid_mod_t * mod1, fluid_mod_t * mod2); + + +#ifdef __cplusplus +} +#endif +#endif /* _FLUIDSYNTH_MOD_H */ + |