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Remove 'x_' prefix from oss_t and oss_mixer_t struct members.

Browse source 
(It added nothing, and served no obvious purpose.)

Export SOUND_MIXER_NRDEVICES constant.
This commit is contained in:
Greg Ward 2002-12-30 02:29:28 +00:00
parent dd24a9f363
commit 7b43c68162
1 changed files with 58 additions and 57 deletions
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115
Modules/ossaudiodev.c
View file

@ -47,16 +47,16 @@ typedef unsigned long uint32_t;
typedef struct { typedef struct {
PyObject_HEAD; PyObject_HEAD;
int x_fd; /* The open file */ int fd; /* The open file */
int x_mode; /* file mode */ int mode; /* file mode */
int x_icount; /* Input count */ int icount; /* Input count */
int x_ocount; /* Output count */ int ocount; /* Output count */
uint32_t x_afmts; /* Audio formats supported by hardware*/ uint32_t afmts; /* Audio formats supported by hardware */
} oss_t; } oss_t;
typedef struct { typedef struct {
PyObject_HEAD; PyObject_HEAD;
int x_fd; /* The open mixer device */ int fd; /* The open mixer device */
} oss_mixer_t; } oss_mixer_t;
/* XXX several format defined in soundcard.h are not supported, /* XXX several format defined in soundcard.h are not supported,
@ -145,10 +145,10 @@ newossobject(PyObject *arg)
close(fd); close(fd);
return NULL; return NULL;
} }
xp->x_fd = fd; xp->fd = fd;
xp->x_mode = imode; xp->mode = imode;
xp->x_icount = xp->x_ocount = 0; xp->icount = xp->ocount = 0;
xp->x_afmts = afmts; xp->afmts = afmts;
return xp; return xp;
} }
@ -156,8 +156,8 @@ static void
oss_dealloc(oss_t *xp) oss_dealloc(oss_t *xp)
{ {
/* if already closed, don't reclose it */ /* if already closed, don't reclose it */
if (xp->x_fd != -1) if (xp->fd != -1)
close(xp->x_fd); close(xp->fd);
PyObject_Del(xp); PyObject_Del(xp);
} }
@ -199,7 +199,7 @@ newossmixerobject(PyObject *arg)
return NULL; return NULL;
} }
xp->x_fd = fd; xp->fd = fd;
return xp; return xp;
} }
@ -208,8 +208,8 @@ static void
oss_mixer_dealloc(oss_mixer_t *xp) oss_mixer_dealloc(oss_mixer_t *xp)
{ {
/* if already closed, don't reclose it */ /* if already closed, don't reclose it */
if (xp->x_fd != -1) if (xp->fd != -1)
close(xp->x_fd); close(xp->fd);
PyObject_Del(xp); PyObject_Del(xp);
} }
@ -300,7 +300,7 @@ oss_nonblock(oss_t *self, PyObject *args)
mode once we're in non-blocking mode! */ mode once we're in non-blocking mode! */
if (!PyArg_ParseTuple(args, ":nonblock")) if (!PyArg_ParseTuple(args, ":nonblock"))
return NULL; return NULL;
if (ioctl(self->x_fd, SNDCTL_DSP_NONBLOCK, NULL) == -1) if (ioctl(self->fd, SNDCTL_DSP_NONBLOCK, NULL) == -1)
return PyErr_SetFromErrno(PyExc_IOError); return PyErr_SetFromErrno(PyExc_IOError);
Py_INCREF(Py_None); Py_INCREF(Py_None);
return Py_None; return Py_None;
@ -309,7 +309,7 @@ oss_nonblock(oss_t *self, PyObject *args)
static PyObject * static PyObject *
oss_setfmt(oss_t *self, PyObject *args) oss_setfmt(oss_t *self, PyObject *args)
{ {
return _do_ioctl_1(self->x_fd, args, "setfmt", SNDCTL_DSP_SETFMT); return _do_ioctl_1(self->fd, args, "setfmt", SNDCTL_DSP_SETFMT);
} }
static PyObject * static PyObject *
@ -318,7 +318,7 @@ oss_getfmts(oss_t *self, PyObject *args)
int mask; int mask;
if (!PyArg_ParseTuple(args, ":getfmts")) if (!PyArg_ParseTuple(args, ":getfmts"))
return NULL; return NULL;
if (ioctl(self->x_fd, SNDCTL_DSP_GETFMTS, &mask) == -1) if (ioctl(self->fd, SNDCTL_DSP_GETFMTS, &mask) == -1)
return PyErr_SetFromErrno(PyExc_IOError); return PyErr_SetFromErrno(PyExc_IOError);
return PyInt_FromLong(mask); return PyInt_FromLong(mask);
} }
@ -326,31 +326,31 @@ oss_getfmts(oss_t *self, PyObject *args)
static PyObject * static PyObject *
oss_channels(oss_t *self, PyObject *args) oss_channels(oss_t *self, PyObject *args)
{ {
return _do_ioctl_1(self->x_fd, args, "channels", SNDCTL_DSP_CHANNELS); return _do_ioctl_1(self->fd, args, "channels", SNDCTL_DSP_CHANNELS);
} }
static PyObject * static PyObject *
oss_speed(oss_t *self, PyObject *args) oss_speed(oss_t *self, PyObject *args)
{ {
return _do_ioctl_1(self->x_fd, args, "speed", SNDCTL_DSP_SPEED); return _do_ioctl_1(self->fd, args, "speed", SNDCTL_DSP_SPEED);
} }
static PyObject * static PyObject *
oss_sync(oss_t *self, PyObject *args) oss_sync(oss_t *self, PyObject *args)
{ {
return _do_ioctl_0(self->x_fd, args, "sync", SNDCTL_DSP_SYNC); return _do_ioctl_0(self->fd, args, "sync", SNDCTL_DSP_SYNC);
} }
static PyObject * static PyObject *
oss_reset(oss_t *self, PyObject *args) oss_reset(oss_t *self, PyObject *args)
{ {
return _do_ioctl_0(self->x_fd, args, "reset", SNDCTL_DSP_RESET); return _do_ioctl_0(self->fd, args, "reset", SNDCTL_DSP_RESET);
} }
static PyObject * static PyObject *
oss_post(oss_t *self, PyObject *args) oss_post(oss_t *self, PyObject *args)
{ {
return _do_ioctl_0(self->x_fd, args, "post", SNDCTL_DSP_POST); return _do_ioctl_0(self->fd, args, "post", SNDCTL_DSP_POST);
} }
@ -370,12 +370,12 @@ oss_read(oss_t *self, PyObject *args)
if (rv == NULL) if (rv == NULL)
return NULL; return NULL;
cp = PyString_AS_STRING(rv); cp = PyString_AS_STRING(rv);
if ((count = read(self->x_fd, cp, size)) < 0) { if ((count = read(self->fd, cp, size)) < 0) {
PyErr_SetFromErrno(PyExc_IOError); PyErr_SetFromErrno(PyExc_IOError);
Py_DECREF(rv); Py_DECREF(rv);
return NULL; return NULL;
} }
self->x_icount += count; self->icount += count;
_PyString_Resize(&rv, count); _PyString_Resize(&rv, count);
return rv; return rv;
} }
@ -389,10 +389,10 @@ oss_write(oss_t *self, PyObject *args)
if (!PyArg_ParseTuple(args, "s#:write", &cp, &size)) { if (!PyArg_ParseTuple(args, "s#:write", &cp, &size)) {
return NULL; return NULL;
} }
if ((rv = write(self->x_fd, cp, size)) == -1) { if ((rv = write(self->fd, cp, size)) == -1) {
return PyErr_SetFromErrno(PyExc_IOError); return PyErr_SetFromErrno(PyExc_IOError);
} else { } else {
self->x_ocount += rv; self->ocount += rv;
} }
return PyInt_FromLong(rv); return PyInt_FromLong(rv);
} }
@ -417,15 +417,15 @@ oss_writeall(oss_t *self, PyObject *args)
/* use select to wait for audio device to be available */ /* use select to wait for audio device to be available */
FD_ZERO(&write_set_fds); FD_ZERO(&write_set_fds);
FD_SET(self->x_fd, &write_set_fds); FD_SET(self->fd, &write_set_fds);
while (size > 0) { while (size > 0) {
select_rv = select(self->x_fd+1, NULL, &write_set_fds, NULL, NULL); select_rv = select(self->fd+1, NULL, &write_set_fds, NULL, NULL);
assert(select_rv != 0); /* no timeout, can't expire */ assert(select_rv != 0); /* no timeout, can't expire */
if (select_rv == -1) if (select_rv == -1)
return PyErr_SetFromErrno(PyExc_IOError); return PyErr_SetFromErrno(PyExc_IOError);
rv = write(self->x_fd, cp, size); rv = write(self->fd, cp, size);
if (rv == -1) { if (rv == -1) {
if (errno == EAGAIN) { /* buffer is full, try again */ if (errno == EAGAIN) { /* buffer is full, try again */
errno = 0; errno = 0;
@ -433,7 +433,7 @@ oss_writeall(oss_t *self, PyObject *args)
} else /* it's a real error */ } else /* it's a real error */
return PyErr_SetFromErrno(PyExc_IOError); return PyErr_SetFromErrno(PyExc_IOError);
} else { /* wrote rv bytes */ } else { /* wrote rv bytes */
self->x_ocount += rv; self->ocount += rv;
size -= rv; size -= rv;
cp += rv; cp += rv;
} }
@ -448,9 +448,9 @@ oss_close(oss_t *self, PyObject *args)
if (!PyArg_ParseTuple(args, ":close")) if (!PyArg_ParseTuple(args, ":close"))
return NULL; return NULL;
if (self->x_fd >= 0) { if (self->fd >= 0) {
close(self->x_fd); close(self->fd);
self->x_fd = -1; self->fd = -1;
} }
Py_INCREF(Py_None); Py_INCREF(Py_None);
return Py_None; return Py_None;
@ -461,7 +461,7 @@ oss_fileno(oss_t *self, PyObject *args)
{ {
if (!PyArg_ParseTuple(args, ":fileno")) if (!PyArg_ParseTuple(args, ":fileno"))
return NULL; return NULL;
return PyInt_FromLong(self->x_fd); return PyInt_FromLong(self->fd);
} }
@ -508,23 +508,23 @@ oss_setparameters(oss_t *self, PyObject *args)
} }
if (emulate == 0) { if (emulate == 0) {
if ((self->x_afmts & audio_types[n].a_fmt) == 0) { if ((self->afmts & audio_types[n].a_fmt) == 0) {
PyErr_Format(PyExc_ValueError, PyErr_Format(PyExc_ValueError,
"%s format not supported by device", "%s format not supported by device",
audio_types[n].a_name); audio_types[n].a_name);
return NULL; return NULL;
} }
} }
if (ioctl(self->x_fd, SNDCTL_DSP_SETFMT, if (ioctl(self->fd, SNDCTL_DSP_SETFMT,
&audio_types[n].a_fmt) == -1) { &audio_types[n].a_fmt) == -1) {
PyErr_SetFromErrno(PyExc_IOError); PyErr_SetFromErrno(PyExc_IOError);
return NULL; return NULL;
} }
if (ioctl(self->x_fd, SNDCTL_DSP_CHANNELS, &nchannels) == -1) { if (ioctl(self->fd, SNDCTL_DSP_CHANNELS, &nchannels) == -1) {
PyErr_SetFromErrno(PyExc_IOError); PyErr_SetFromErrno(PyExc_IOError);
return NULL; return NULL;
} }
if (ioctl(self->x_fd, SNDCTL_DSP_SPEED, &rate) == -1) { if (ioctl(self->fd, SNDCTL_DSP_SPEED, &rate) == -1) {
PyErr_SetFromErrno(PyExc_IOError); PyErr_SetFromErrno(PyExc_IOError);
return NULL; return NULL;
} }
@ -539,7 +539,7 @@ _ssize(oss_t *self, int *nchannels, int *ssize)
int fmt; int fmt;
fmt = 0; fmt = 0;
if (ioctl(self->x_fd, SNDCTL_DSP_SETFMT, &fmt) < 0) if (ioctl(self->fd, SNDCTL_DSP_SETFMT, &fmt) < 0)
return -errno; return -errno;
switch (fmt) { switch (fmt) {
@ -561,7 +561,7 @@ _ssize(oss_t *self, int *nchannels, int *ssize)
return -EOPNOTSUPP; return -EOPNOTSUPP;
} }
*nchannels = 0; *nchannels = 0;
if (ioctl(self->x_fd, SNDCTL_DSP_CHANNELS, nchannels) < 0) if (ioctl(self->fd, SNDCTL_DSP_CHANNELS, nchannels) < 0)
return -errno; return -errno;
return 0; return 0;
} }
@ -581,7 +581,7 @@ oss_bufsize(oss_t *self, PyObject *args)
PyErr_SetFromErrno(PyExc_IOError); PyErr_SetFromErrno(PyExc_IOError);
return NULL; return NULL;
} }
if (ioctl(self->x_fd, SNDCTL_DSP_GETOSPACE, &ai) < 0) { if (ioctl(self->fd, SNDCTL_DSP_GETOSPACE, &ai) < 0) {
PyErr_SetFromErrno(PyExc_IOError); PyErr_SetFromErrno(PyExc_IOError);
return NULL; return NULL;
} }
@ -603,7 +603,7 @@ oss_obufcount(oss_t *self, PyObject *args)
PyErr_SetFromErrno(PyExc_IOError); PyErr_SetFromErrno(PyExc_IOError);
return NULL; return NULL;
} }
if (ioctl(self->x_fd, SNDCTL_DSP_GETOSPACE, &ai) < 0) { if (ioctl(self->fd, SNDCTL_DSP_GETOSPACE, &ai) < 0) {
PyErr_SetFromErrno(PyExc_IOError); PyErr_SetFromErrno(PyExc_IOError);
return NULL; return NULL;
} }
@ -626,7 +626,7 @@ oss_obuffree(oss_t *self, PyObject *args)
PyErr_SetFromErrno(PyExc_IOError); PyErr_SetFromErrno(PyExc_IOError);
return NULL; return NULL;
} }
if (ioctl(self->x_fd, SNDCTL_DSP_GETOSPACE, &ai) < 0) { if (ioctl(self->fd, SNDCTL_DSP_GETOSPACE, &ai) < 0) {
PyErr_SetFromErrno(PyExc_IOError); PyErr_SetFromErrno(PyExc_IOError);
return NULL; return NULL;
} }
@ -642,11 +642,11 @@ oss_getptr(oss_t *self, PyObject *args)
if (!PyArg_ParseTuple(args, ":getptr")) if (!PyArg_ParseTuple(args, ":getptr"))
return NULL; return NULL;
if (self->x_mode == O_RDONLY) if (self->mode == O_RDONLY)
req = SNDCTL_DSP_GETIPTR; req = SNDCTL_DSP_GETIPTR;
else else
req = SNDCTL_DSP_GETOPTR; req = SNDCTL_DSP_GETOPTR;
if (ioctl(self->x_fd, req, &info) == -1) { if (ioctl(self->fd, req, &info) == -1) {
PyErr_SetFromErrno(PyExc_IOError); PyErr_SetFromErrno(PyExc_IOError);
return NULL; return NULL;
} }
@ -660,9 +660,9 @@ oss_mixer_close(oss_mixer_t *self, PyObject *args)
if (!PyArg_ParseTuple(args, ":close")) if (!PyArg_ParseTuple(args, ":close"))
return NULL; return NULL;
if (self->x_fd >= 0) { if (self->fd >= 0) {
close(self->x_fd); close(self->fd);
self->x_fd = -1; self->fd = -1;
} }
Py_INCREF(Py_None); Py_INCREF(Py_None);
return Py_None; return Py_None;
@ -673,7 +673,7 @@ oss_mixer_fileno(oss_mixer_t *self, PyObject *args)
{ {
if (!PyArg_ParseTuple(args, ":fileno")) if (!PyArg_ParseTuple(args, ":fileno"))
return NULL; return NULL;
return PyInt_FromLong(self->x_fd); return PyInt_FromLong(self->fd);
} }
/* Simple mixer interface methods */ /* Simple mixer interface methods */
@ -681,21 +681,21 @@ oss_mixer_fileno(oss_mixer_t *self, PyObject *args)
static PyObject * static PyObject *
oss_mixer_channels (oss_mixer_t *self, PyObject *args) oss_mixer_channels (oss_mixer_t *self, PyObject *args)
{ {
return _do_ioctl_1_internal(self->x_fd, args, "channels", return _do_ioctl_1_internal(self->fd, args, "channels",
SOUND_MIXER_READ_DEVMASK); SOUND_MIXER_READ_DEVMASK);
} }
static PyObject * static PyObject *
oss_mixer_stereo_channels (oss_mixer_t *self, PyObject *args) oss_mixer_stereo_channels (oss_mixer_t *self, PyObject *args)
{ {
return _do_ioctl_1_internal(self->x_fd, args, "stereochannels", return _do_ioctl_1_internal(self->fd, args, "stereochannels",
SOUND_MIXER_READ_STEREODEVS); SOUND_MIXER_READ_STEREODEVS);
} }
static PyObject * static PyObject *
oss_mixer_rec_channels (oss_mixer_t *self, PyObject *args) oss_mixer_rec_channels (oss_mixer_t *self, PyObject *args)
{ {
return _do_ioctl_1_internal(self->x_fd, args, "recchannels", return _do_ioctl_1_internal(self->fd, args, "recchannels",
SOUND_MIXER_READ_RECMASK); SOUND_MIXER_READ_RECMASK);
} }
@ -713,7 +713,7 @@ oss_mixer_getvol (oss_mixer_t *self, PyObject *args)
return NULL; return NULL;
} }
if (ioctl (self->x_fd, MIXER_READ(channel), &volume) == -1) if (ioctl (self->fd, MIXER_READ(channel), &volume) == -1)
return PyErr_SetFromErrno(PyExc_IOError); return PyErr_SetFromErrno(PyExc_IOError);
return Py_BuildValue ("(ii)", volume & 0xff, (volume & 0xff00) >> 8); return Py_BuildValue ("(ii)", volume & 0xff, (volume & 0xff00) >> 8);
@ -740,7 +740,7 @@ oss_mixer_setvol (oss_mixer_t *self, PyObject *args)
volume = (rightVol << 8) | leftVol; volume = (rightVol << 8) | leftVol;
if (ioctl (self->x_fd, MIXER_WRITE(channel), &volume) == -1) if (ioctl (self->fd, MIXER_WRITE(channel), &volume) == -1)
return PyErr_SetFromErrno(PyExc_IOError); return PyErr_SetFromErrno(PyExc_IOError);
return Py_BuildValue ("(ii)", volume & 0xff, (volume & 0xff00) >> 8); return Py_BuildValue ("(ii)", volume & 0xff, (volume & 0xff00) >> 8);
@ -749,14 +749,14 @@ oss_mixer_setvol (oss_mixer_t *self, PyObject *args)
static PyObject * static PyObject *
oss_mixer_getrecsrc (oss_mixer_t *self, PyObject *args) oss_mixer_getrecsrc (oss_mixer_t *self, PyObject *args)
{ {
return _do_ioctl_1_internal(self->x_fd, args, "getrecsrc", return _do_ioctl_1_internal(self->fd, args, "getrecsrc",
SOUND_MIXER_READ_RECSRC); SOUND_MIXER_READ_RECSRC);
} }
static PyObject * static PyObject *
oss_mixer_setrecsrc (oss_mixer_t *self, PyObject *args) oss_mixer_setrecsrc (oss_mixer_t *self, PyObject *args)
{ {
return _do_ioctl_1(self->x_fd, args, "setrecsrc", return _do_ioctl_1(self->fd, args, "setrecsrc",
SOUND_MIXER_WRITE_RECSRC); SOUND_MIXER_WRITE_RECSRC);
} }
@ -901,6 +901,7 @@ initossaudiodev(void)
_EXPORT_INT(m, AFMT_S16_NE); _EXPORT_INT(m, AFMT_S16_NE);
/* Expose the sound mixer channels. */ /* Expose the sound mixer channels. */
_EXPORT_INT(m, SOUND_MIXER_NRDEVICES);
_EXPORT_INT(m, SOUND_MIXER_VOLUME); _EXPORT_INT(m, SOUND_MIXER_VOLUME);
_EXPORT_INT(m, SOUND_MIXER_BASS); _EXPORT_INT(m, SOUND_MIXER_BASS);
_EXPORT_INT(m, SOUND_MIXER_TREBLE); _EXPORT_INT(m, SOUND_MIXER_TREBLE);