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46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
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/*
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TiMidity -- Experimental MIDI to WAVE converter
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Copyright (C) 1995 Tuukka Toivonen <toivonen@clinet.fi>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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tables.h
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*/
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#ifdef LOOKUP_SINE
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extern float sine(int x);
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#else
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#include <math.h>
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#define sine(x) (sin((2*PI/1024.0) * (x)))
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#endif
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#define SINE_CYCLE_LENGTH 1024
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extern int32_t freq_table[];
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extern double vol_table[];
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extern double bend_fine[];
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extern double bend_coarse[];
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extern uint8_t *_l2u; /* 13-bit PCM to 8-bit u-law */
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extern uint8_t _l2u_[]; /* used in LOOKUP_HACK */
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#ifdef LOOKUP_HACK
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extern int16_t _u2l[];
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extern int32_t *mixup;
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#ifdef LOOKUP_INTERPOLATION
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extern int8_t *iplookup;
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#endif
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#endif
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extern void init_tables(void);
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