tables.h
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上传日期:2022-07-21
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- /*
- TiMidity -- Experimental MIDI to WAVE converter
- Copyright (C) 1995 Tuukka Toivonen <toivonen@clinet.fi>
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program 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 General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- tables.h
- */
- #ifdef LOOKUP_SINE
- extern FLOAT_T sine(int x);
- #else
- #include <math.h>
- #define sine(x) (sin((2*PI/1024.0) * (x)))
- #endif
- #define SINE_CYCLE_LENGTH 1024
- extern int32 freq_table[];
- extern double vol_table[];
- extern double expr_table[];
- extern double bend_fine[];
- extern double bend_coarse[];
- extern uint8 *_l2u; /* 13-bit PCM to 8-bit u-law */
- extern uint8 _l2u_[]; /* used in LOOKUP_HACK */
- #ifdef LOOKUP_HACK
- extern int16 _u2l[];
- extern int32 *mixup;
- #ifdef LOOKUP_INTERPOLATION
- extern int8 *iplookup;
- #endif
- #endif
- extern void init_tables(void);
- #define XMAPMAX 800
- extern int xmap[XMAPMAX][5];