fluid_conv.h
上传用户:tjmskj2
上传日期:2020-08-17
资源大小:577k
文件大小:2k
- /* 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 _FLUID_CONV_H
- #define _FLUID_CONV_H
- #include "fluidsynth_priv.h"
- #define FLUID_CENTS_HZ_SIZE 1200
- #define FLUID_VEL_CB_SIZE 128
- #define FLUID_CB_AMP_SIZE 961
- #define FLUID_ATTEN_AMP_SIZE 1441
- #define FLUID_PAN_SIZE 1002
- /* EMU 8k/10k don't follow spec in regards to volume attenuation.
- * This factor is used in the equation pow (10.0, cb / FLUID_ATTEN_POWER_FACTOR).
- * By the standard this should be -200.0. */
- /* 07/11/2008 modified by S. Christian Collins for increased velocity sensitivity. Now it equals the response of EMU10K1 programming.*/
- #define FLUID_ATTEN_POWER_FACTOR (-200.0) /* was (-531.509)*/
- void fluid_conversion_config(void);
- fluid_real_t fluid_ct2hz_real(fluid_real_t cents);
- fluid_real_t fluid_ct2hz(fluid_real_t cents);
- fluid_real_t fluid_cb2amp(fluid_real_t cb);
- fluid_real_t fluid_atten2amp(fluid_real_t atten);
- fluid_real_t fluid_tc2sec(fluid_real_t tc);
- fluid_real_t fluid_tc2sec_delay(fluid_real_t tc);
- fluid_real_t fluid_tc2sec_attack(fluid_real_t tc);
- fluid_real_t fluid_tc2sec_release(fluid_real_t tc);
- fluid_real_t fluid_act2hz(fluid_real_t c);
- fluid_real_t fluid_hz2ct(fluid_real_t c);
- fluid_real_t fluid_pan(fluid_real_t c, int left);
- fluid_real_t fluid_concave(fluid_real_t val);
- fluid_real_t fluid_convex(fluid_real_t val);
- extern fluid_real_t fluid_ct2hz_tab[FLUID_CENTS_HZ_SIZE];
- extern fluid_real_t fluid_vel2cb_tab[FLUID_VEL_CB_SIZE];
- extern fluid_real_t fluid_cb2amp_tab[FLUID_CB_AMP_SIZE];
- extern fluid_real_t fluid_posbp_tab[128];
- extern fluid_real_t fluid_concave_tab[128];
- extern fluid_real_t fluid_convex_tab[128];
- extern fluid_real_t fluid_pan_tab[FLUID_PAN_SIZE];
- #endif /* _FLUID_CONV_H */