Changeset 1554:075fb6bf5c2c in roaraudio

Timestamp:

04/13/09 00:04:46 (15 years ago)

Author:

phi

Branch:

default

Phase:

public

Message:

added macros, defines, structs and proto types

File:

• include/libroarsndio/sndiosym.h (modified) (1 diff)

include/libroarsndio/sndiosym.h

@@ -36 +36 @@
 #include <roaraudio.h>
 
+#ifdef ROAR_HAVE_H_POLL
+#include <poll.h>
+#else
+struct pollfd;
+#endif
+
+#define SIO_PLAY        1
+#define SIO_REC         2
+
+#define SIO_IGNORE      0       /* pause during xrun */
+#define SIO_SYNC        1       /* resync after xrun */
+#define SIO_ERROR       2       /* terminate on xrun */
+
+#if BYTE_ORDER == BIG_ENDIAN && !defined(ROAR_TARGET_WIN32)
+#define SIO_LE_NATIVE   0
+#else
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define SIO_LE_NATIVE   1
+#else
+#error Byte Order of this system is not supported within the sndio interface.
+#endif
+#endif
+
+#define SIO_BPS(bits) (((bits)/8) + ((bits) % 8 ? 1 : 0))
+
+struct sio_par {
+ unsigned bits;          /* bits per sample */
+ unsigned bps;           /* bytes per sample */
+ unsigned sig;           /* 1 = signed, 0 = unsigned */
+ unsigned le;            /* 1 = LE, 0 = BE byte order */
+ unsigned msb;           /* 1 = MSB, 0 = LSB aligned */
+ unsigned rchan;         /* number channels for recording */
+ unsigned pchan;         /* number channels for playback */
+ unsigned rate;          /* frames per second */
+ unsigned appbufsz;      /* minimum buffer size without xruns */
+ unsigned bufsz;         /* end-to-end buffer size (read-only) */
+ unsigned round;         /* optimal buffer size divisor */
+ unsigned xrun;          /* what to do on overrun/underrun */
+};
+
+struct sio_hdl {
+ int              fh;
+ struct sio_par   para;
+ void           (*on_move)(void * arg, int delta);
+ void           * on_move_arg;
+ void           (*on_vol )(void * arg, unsigned vol);
+ void           * on_vol_arg;
+};
+
+struct sio_hdl * sio_open(char * name, unsigned mode, int nbio_flag);
+void   sio_close  (struct sio_hdl * hdl);
+
+void   sio_initpar(struct sio_par * par);
+int    sio_setpar (struct sio_hdl * hdl, struct sio_par * par);
+int    sio_getpar (struct sio_hdl * hdl, struct sio_par * par);
+
+int    sio_getcap (struct sio_hdl * hdl, struct sio_cap * cap);
+
+int    sio_start  (struct sio_hdl * hdl);
+int    sio_stop   (struct sio_hdl * hdl);
+
+size_t sio_read   (struct sio_hdl * hdl, void * addr, size_t nbytes);
+size_t sio_write  (struct sio_hdl * hdl, void * addr, size_t nbytes);
+
+void   sio_onmove (struct sio_hdl * hdl, void (*cb)(void * arg, int delta), void * arg);
+
+int    sio_nfds   (struct sio_hdl * hdl);
+
+int    sio_pollfd (struct sio_hdl * hdl, struct pollfd * pfd, int events);
+
+int    sio_revents(struct sio_hdl * hdl, struct pollfd * pfd);
+
+int    sio_eof    (struct sio_hdl * hdl);
+
+int    sio_setvol (struct sio_hdl * hdl, unsigned vol);
+void   sio_onvol  (struct sio_hdl * hdl, void (*cb)(void * arg, unsigned vol), void * arg);
+
 #endif