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livetrax/libs/fluidsynth/fluidsynth/voice.h

78 lines
2.9 KiB
C

/* 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 Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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_VOICE_H
#define _FLUIDSYNTH_VOICE_H
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup voices Voice Manipulation
* @ingroup soundfonts
*
* Synthesis voice manipulation functions.
*
* The interface to the synthesizer's voices.
* Examples on using them can be found in the source code of the default SoundFont
* loader (fluid_defsfont.c).
*
* Most of these functions should only be called from within synthesis context,
* such as the SoundFont loader's noteon method.
*
* @{
*/
/**
* Enum used with fluid_voice_add_mod() to specify how to handle duplicate modulators.
*/
enum fluid_voice_add_mod
{
FLUID_VOICE_OVERWRITE, /**< Overwrite any existing matching modulator */
FLUID_VOICE_ADD, /**< Add (sum) modulator amounts */
FLUID_VOICE_DEFAULT /**< For default modulators only, no need to check for duplicates */
};
FLUIDSYNTH_API void fluid_voice_add_mod(fluid_voice_t *voice, fluid_mod_t *mod, int mode);
FLUIDSYNTH_API float fluid_voice_gen_get(fluid_voice_t *voice, int gen);
FLUIDSYNTH_API void fluid_voice_gen_set(fluid_voice_t *voice, int gen, float val);
FLUIDSYNTH_API void fluid_voice_gen_incr(fluid_voice_t *voice, int gen, float val);
FLUIDSYNTH_API unsigned int fluid_voice_get_id(const fluid_voice_t *voice);
FLUIDSYNTH_API int fluid_voice_get_channel(const fluid_voice_t *voice);
FLUIDSYNTH_API int fluid_voice_get_key(const fluid_voice_t *voice);
FLUIDSYNTH_API int fluid_voice_get_actual_key(const fluid_voice_t *voice);
FLUIDSYNTH_API int fluid_voice_get_velocity(const fluid_voice_t *voice);
FLUIDSYNTH_API int fluid_voice_get_actual_velocity(const fluid_voice_t *voice);
FLUIDSYNTH_API int fluid_voice_is_playing(const fluid_voice_t *voice);
FLUIDSYNTH_API int fluid_voice_is_on(const fluid_voice_t *voice);
FLUIDSYNTH_API int fluid_voice_is_sustained(const fluid_voice_t *voice);
FLUIDSYNTH_API int fluid_voice_is_sostenuto(const fluid_voice_t *voice);
FLUIDSYNTH_API int fluid_voice_optimize_sample(fluid_sample_t *s);
FLUIDSYNTH_API void fluid_voice_update_param(fluid_voice_t *voice, int gen);
/* @} */
#ifdef __cplusplus
}
#endif
#endif /* _FLUIDSYNTH_VOICE_H */