81 lines
3.0 KiB
C
81 lines
3.0 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 Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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_CHORUS_H
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#define _FLUID_CHORUS_H
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#include "fluidsynth_priv.h"
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typedef struct _fluid_chorus_t fluid_chorus_t;
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/* enum describing each chorus parameter */
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enum fluid_chorus_param
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{
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FLUID_CHORUS_NR, /**< number of delay line */
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FLUID_CHORUS_LEVEL, /**< output level */
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FLUID_CHORUS_SPEED, /**< lfo frequency */
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FLUID_CHORUS_DEPTH, /**< modulation depth */
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FLUID_CHORUS_TYPE, /**< type of waveform */
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FLUID_CHORUS_PARAM_LAST /* number of enum fluid_chorus_param */
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};
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/* return a bit flag from param: 2^param */
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#define FLUID_CHORPARAM_TO_SETFLAG(param) (1 << param)
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/** Flags for fluid_chorus_set() */
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typedef enum
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{
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FLUID_CHORUS_SET_NR = FLUID_CHORPARAM_TO_SETFLAG(FLUID_CHORUS_NR),
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FLUID_CHORUS_SET_LEVEL = FLUID_CHORPARAM_TO_SETFLAG(FLUID_CHORUS_LEVEL),
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FLUID_CHORUS_SET_SPEED = FLUID_CHORPARAM_TO_SETFLAG(FLUID_CHORUS_SPEED),
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FLUID_CHORUS_SET_DEPTH = FLUID_CHORPARAM_TO_SETFLAG(FLUID_CHORUS_DEPTH),
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FLUID_CHORUS_SET_TYPE = FLUID_CHORPARAM_TO_SETFLAG(FLUID_CHORUS_TYPE),
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/** Value for fluid_chorus_set() which sets all chorus parameters. */
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FLUID_CHORUS_SET_ALL = FLUID_CHORUS_SET_NR
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| FLUID_CHORUS_SET_LEVEL
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| FLUID_CHORUS_SET_SPEED
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| FLUID_CHORUS_SET_DEPTH
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| FLUID_CHORUS_SET_TYPE,
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} fluid_chorus_set_t;
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/*
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* chorus
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*/
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fluid_chorus_t *new_fluid_chorus(fluid_real_t sample_rate);
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void delete_fluid_chorus(fluid_chorus_t *chorus);
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void fluid_chorus_reset(fluid_chorus_t *chorus);
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void fluid_chorus_set(fluid_chorus_t *chorus, int set, int nr, fluid_real_t level,
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fluid_real_t speed, fluid_real_t depth_ms, int type);
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void
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fluid_chorus_samplerate_change(fluid_chorus_t *chorus, fluid_real_t sample_rate);
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void fluid_chorus_processmix(fluid_chorus_t *chorus, const fluid_real_t *in,
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fluid_real_t *left_out, fluid_real_t *right_out);
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void fluid_chorus_processreplace(fluid_chorus_t *chorus, const fluid_real_t *in,
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fluid_real_t *left_out, fluid_real_t *right_out);
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#endif /* _FLUID_CHORUS_H */
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