Mercurial > hg > forks > pwpunix
annotate pwplib/snd-oss.c @ 17:c60e531d19cd
Some misc. cleanups and minor warning removals.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Sat, 22 May 2010 20:32:49 +0300 |
| parents | acb5694e93d9 |
| children | b9d679965320 |
| rev | line source |
|---|---|
| 0 | 1 #include "config.h" |
| 2 | |
| 3 #ifdef DRIVE_OSS | |
| 4 | |
| 5 #include <stdio.h> | |
| 6 #include <stdlib.h> | |
| 7 #include <unistd.h> | |
| 8 #include <fcntl.h> | |
| 9 | |
| 10 #include <linux/soundcard.h> | |
| 11 | |
| 12 #include "pwplib.h" | |
| 13 | |
| 14 #define TIMERHZ 72 | |
| 15 | |
| 16 struct{ | |
| 17 int fd; | |
| 18 char buf[4096]; | |
| 19 int buflgt; | |
| 20 int freq; | |
| 21 }pwp_oss; | |
| 22 | |
| 23 extern void gb_sound(int,int,int,int); | |
| 24 | |
| 25 void oss_loopflush() | |
| 26 { | |
| 27 for(;;) | |
| 28 {audio_buf_info bi;ioctl(pwp_oss.fd,SNDCTL_DSP_GETOSPACE,&bi); | |
| 29 if(bi.fragments==1)break; | |
| 30 pwplib.player(); | |
| 31 gb_genwave(pwp_oss.buf,pwp_oss.buflgt); | |
| 32 write(pwp_oss.fd,pwp_oss.buf,pwp_oss.buflgt); | |
| 33 if(bi.fragments<3)break; | |
| 34 } | |
| 35 } | |
| 36 | |
| 37 void oss_restore() | |
| 38 { | |
| 39 close(pwp_oss.fd); | |
| 40 } | |
| 41 | |
| 42 int oss_init() | |
| 43 { | |
| 44 pwp_oss.fd=open("/dev/dsp",O_WRONLY); | |
| 45 if(pwp_oss.fd<0)return 0; | |
| 46 | |
| 47 pwpwrite("* OSS sound\n"); | |
| 48 | |
| 49 pwp_oss.freq=8000; | |
| 50 pwp_oss.buflgt=pwp_oss.freq/TIMERHZ; | |
| 51 | |
| 52 pwplib.sound=gb_sound; | |
| 53 pwplib.loopflush=oss_loopflush; | |
| 54 gb_init(pwp_oss.freq); | |
| 55 | |
|
17
c60e531d19cd
Some misc. cleanups and minor warning removals.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
56 pwplib_regdestr(oss_restore); |
| 0 | 57 |
| 58 return 1; | |
| 59 } | |
| 60 #endif |