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84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/*
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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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instrum.h
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*/
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typedef struct {
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int32_t
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loop_start, loop_end, data_length,
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sample_rate, low_freq, high_freq, root_freq;
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int32_t
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envelope_rate[6], envelope_offset[6];
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float
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volume;
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sample_t *data;
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int32_t
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tremolo_sweep_increment, tremolo_phase_increment,
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vibrato_sweep_increment, vibrato_control_ratio;
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uint8_t
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tremolo_depth, vibrato_depth,
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modes;
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int8_t
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panning, note_to_use;
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} Sample;
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/* Bits in modes: */
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#define MODES_16BIT (1<<0)
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#define MODES_UNSIGNED (1<<1)
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#define MODES_LOOPING (1<<2)
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#define MODES_PINGPONG (1<<3)
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#define MODES_REVERSE (1<<4)
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#define MODES_SUSTAIN (1<<5)
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#define MODES_ENVELOPE (1<<6)
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typedef struct {
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int samples;
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Sample *sample;
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} Instrument;
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typedef struct {
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char *name;
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Instrument *instrument;
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int note, amp, pan, strip_loop, strip_envelope, strip_tail;
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} ToneBankElement;
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/* A hack to delay instrument loading until after reading the
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entire MIDI file. */
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#define MAGIC_LOAD_INSTRUMENT ((Instrument *)(-1))
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typedef struct {
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ToneBankElement tone[128];
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} ToneBank;
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extern ToneBank *tonebank[], *drumset[];
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extern Instrument *default_instrument;
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extern int default_program;
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extern int antialiasing_allowed;
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extern int fast_decay;
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extern int free_instruments_afterwards;
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#define SPECIAL_PROGRAM -1
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extern int load_missing_instruments(void);
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extern void free_instruments(void);
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extern int set_default_instrument(char *name);
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