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95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
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/*
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common.h
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Midi Wavetable Processing library
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Copyright (C) Chris Ison 2001-2011
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Copyright (C) Bret Curtis 2013-2014
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This file is part of WildMIDI.
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WildMIDI is free software: you can redistribute and/or modify the player
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under the terms of the GNU General Public License and you can redistribute
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and/or modify the library under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation, either version 3 of
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the licenses, or(at your option) any later version.
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WildMIDI is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License and
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the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU General Public License and the
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GNU Lesser General Public License along with WildMIDI. If not, see
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<http://www.gnu.org/licenses/>.
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*/
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#ifndef __COMMON_H
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#define __COMMON_H
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#define SAMPLE_16BIT 0x01
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#define SAMPLE_UNSIGNED 0x02
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#define SAMPLE_LOOP 0x04
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#define SAMPLE_PINGPONG 0x08
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#define SAMPLE_REVERSE 0x10
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#define SAMPLE_SUSTAIN 0x20
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#define SAMPLE_ENVELOPE 0x40
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#define SAMPLE_CLAMPED 0x80
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#ifdef DEBUG_SAMPLES
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#define SAMPLE_CONVERT_DEBUG(dx) printf("\r%s\n",dx)
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#else
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#define SAMPLE_CONVERT_DEBUG(dx)
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#endif
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extern unsigned short int _WM_SampleRate;
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struct _sample {
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unsigned long int data_length;
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unsigned long int loop_start;
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unsigned long int loop_end;
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unsigned long int loop_size;
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unsigned char loop_fraction;
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unsigned short int rate;
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unsigned long int freq_low;
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unsigned long int freq_high;
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unsigned long int freq_root;
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unsigned char modes;
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signed long int env_rate[7];
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signed long int env_target[7];
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unsigned long int inc_div;
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signed short *data;
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struct _sample *next;
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};
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struct _env {
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float time;
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float level;
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unsigned char set;
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};
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struct _patch {
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unsigned short patchid;
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unsigned char loaded;
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char *filename;
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signed short int amp;
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unsigned char keep;
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unsigned char remove;
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struct _env env[6];
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unsigned char note;
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unsigned long int inuse_count;
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struct _sample *first_sample;
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struct _patch *next;
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};
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/* Set our global defines here */
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#ifndef M_LN2
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#define M_LN2 0.69314718055994530942
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#endif
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#endif /* __COMMON_H */
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