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doomclassic/timidity/tables.h

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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 sine(int x);
+#else
+#include <math.h>
+#define sine(x) (sin((2*PI/1024.0) * (x)))
+#endif
+
+#define SINE_CYCLE_LENGTH 1024
+extern  int32_t  freq_table[];
+extern double vol_table[];
+extern double bend_fine[];
+extern double bend_coarse[];
+extern uint8_t *_l2u; /* 13-bit PCM to 8-bit u-law */
+extern uint8_t _l2u_[]; /* used in LOOKUP_HACK */
+#ifdef LOOKUP_HACK
+extern int16_t _u2l[];
+extern  int32_t  *mixup;
+#ifdef LOOKUP_INTERPOLATION
+extern int8_t *iplookup;
+#endif
+#endif
+
+extern void init_tables(void);