1  
 2  
 3  #ifndef __SOUND_H__
 4  #define __SOUND_H__
 5  
 6  
 7  struct sndchan
 8  {
 9  	int on;
10  	unsigned pos;
11  	int cnt, encnt, swcnt;
12  	int len, enlen, swlen;
13  	int swfreq;
14  	int freq;
15  	int envol, endir;
16  };
17  
18  
19  struct snd
20  {
21  	int rate;
22  	struct sndchan ch[4];
23  	byte wave[16];
24  };
25  
26  
27  extern struct snd snd;
28  
29  
30  extern void sound_reset(int rate);
31  extern void audio_play_sample(int16 *bufl, int16 *bufr, int length);
32  
33  
34  
35  
36  #endif
37  
38