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https://github.com/python/cpython.git
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486 lines
11 KiB
C
486 lines
11 KiB
C
/***********************************************************
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Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
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Amsterdam, The Netherlands.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Stichting Mathematisch
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Centrum or CWI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior permission.
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STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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/* Macintosh OS-specific interface */
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#include "Python.h"
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <OSUtils.h> /* for Set(Current)A5 */
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#include <Resources.h>
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#include <Sound.h>
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/*----------------------------------------------------------------------*/
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/* General tools */
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static PyObject *MacOS_Error; /* Exception MacOS.Error */
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/* Set a MAC-specific error from errno, and return NULL; return None if no error */
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static PyObject *
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Err(OSErr err)
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{
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char buf[100];
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PyObject *v;
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if (err == 0) {
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Py_INCREF(Py_None);
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return Py_None;
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}
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sprintf(buf, "Mac OS error code %d", (int)err);
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v = Py_BuildValue("(is)", (int)err, buf);
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PyErr_SetObject(MacOS_Error, v);
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Py_DECREF(v);
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return NULL;
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}
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/* Convert a ResType argument */
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static int
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GetOSType(PyObject *v, ResType *pr)
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{
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if (!PyString_Check(v) || PyString_Size(v) != 4) {
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PyErr_SetString(MacOS_Error,
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"OSType arg must be string of 4 chars");
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return 0;
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}
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memcpy((char *)pr, PyString_AsString(v), 4);
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return 1;
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}
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/* Convert a Str255 argument */
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static int
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GetStr255(PyObject *v, Str255 pbuf)
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{
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int len;
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if (!PyString_Check(v) || (len = PyString_Size(v)) > 255) {
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PyErr_SetString(MacOS_Error,
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"Str255 arg must be string of at most 255 chars");
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return 0;
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}
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pbuf[0] = len;
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memcpy((char *)(pbuf+1), PyString_AsString(v), len);
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return 1;
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}
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/*----------------------------------------------------------------------*/
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/* Resource objects */
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typedef struct {
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OB_HEAD
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Handle h;
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} RsrcObject;
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staticforward PyTypeObject RsrcType;
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#define Rsrc_Check(r) ((r)->ob_type == &RsrcType)
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static RsrcObject *
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Rsrc_FromHandle(Handle h)
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{
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RsrcObject *r;
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if (h == NULL)
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return (RsrcObject *)Err(ResError());
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r = PyObject_NEW(RsrcObject, &RsrcType);
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if (r != NULL)
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r->h = h;
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return r;
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}
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static void
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Rsrc_Dealloc(RsrcObject *r)
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{
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PyMem_DEL(r);
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}
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static PyObject *
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Rsrc_GetResInfo(RsrcObject *r, PyObject *args)
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{
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short id;
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ResType type;
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Str255 name;
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if (!PyArg_Parse(args, "()"))
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return NULL;
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GetResInfo(r->h, &id, &type, name);
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return Py_BuildValue("(is#s#)",
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(int)id, (char *)&type, 4, name+1, (int)name[0]);
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}
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static PyMethodDef Rsrc_Methods[] = {
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{"GetResInfo", (PyCFunction)Rsrc_GetResInfo, 1},
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{NULL, NULL} /* Sentinel */
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};
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static PyObject *
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Rsrc_GetAttr(PyObject *r, char *name)
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{
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return Py_FindMethod(Rsrc_Methods, r, name);
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}
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static PyTypeObject RsrcType = {
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PyObject_HEAD_INIT(&PyType_Type)
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0,
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"Resource", /*tp_name*/
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sizeof(RsrcObject), /*tp_basicsize*/
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0, /*tp_itemsize*/
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/* methods */
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(destructor)Rsrc_Dealloc, /*tp_dealloc*/
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0, /*tp_print*/
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(getattrfunc)Rsrc_GetAttr, /*tp_getattr*/
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0, /*tp_setattr*/
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0, /*tp_compare*/
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0, /*tp_repr*/
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0, /*tp_as_number*/
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0, /*tp_as_sequence*/
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0, /*tp_as_mapping*/
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0, /*tp_hash*/
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};
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static PyObject *
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MacOS_GetResource(PyObject *self, PyObject *args)
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{
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ResType rt;
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int id;
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Handle h;
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if (!PyArg_Parse(args, "(O&i)", GetOSType, &rt, &id))
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return NULL;
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h = GetResource(rt, id);
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return (PyObject *)Rsrc_FromHandle(h);
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}
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static PyObject *
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MacOS_GetNamedResource(PyObject *self, PyObject *args)
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{
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ResType rt;
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Str255 name;
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Handle h;
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if (!PyArg_Parse(args, "(O&O&)", GetOSType, &rt, GetStr255, &name))
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return NULL;
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h = GetNamedResource(rt, name);
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return (PyObject *)Rsrc_FromHandle(h);
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}
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/*----------------------------------------------------------------------*/
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/* SoundChannel objects */
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/* Convert a SndCommand argument */
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static int
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GetSndCommand(PyObject *v, SndCommand *pc)
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{
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int len;
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pc->param1 = 0;
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pc->param2 = 0;
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if (PyArg_Parse(v, "h", &pc->cmd))
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return 1;
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PyErr_Clear();
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if (PyArg_Parse(v, "(h)", &pc->cmd))
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return 1;
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PyErr_Clear();
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if (PyArg_Parse(v, "(hh)", &pc->cmd, &pc->param1))
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return 1;
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PyErr_Clear();
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if (PyArg_Parse(v, "(hhl)",
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&pc->cmd, &pc->param1, &pc->param2))
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return 1;
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PyErr_Clear();
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if (PyArg_Parse(v, "(hhs#);SndCommand arg must be 1-3 ints or 2 ints + string",
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&pc->cmd, &pc->param1, &pc->param2, &len))
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return 1;
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return 0;
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}
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typedef struct {
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OB_HEAD
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SndChannelPtr chan;
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} SndChObject;
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staticforward PyTypeObject SndChType;
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#define SndCh_Check(s) ((s)->ob_type == &SndChType)
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static SndChObject *
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SndCh_FromSndChannelPtr(SndChannelPtr chan)
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{
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SndChObject *s = PyObject_NEW(SndChObject, &SndChType);
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if (s != NULL)
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s->chan = chan;
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return s;
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}
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static void
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SndCh_Cleanup(SndChObject *s, int quitNow)
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{
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SndChannelPtr chan = s->chan;
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if (chan != NULL) {
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void *userInfo = (void *)chan->userInfo;
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s->chan = NULL;
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SndDisposeChannel(chan, quitNow);
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if (userInfo != 0)
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DEL(userInfo);
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}
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}
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static void
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SndCh_Dealloc(SndChObject *s)
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{
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SndCh_Cleanup(s, 1);
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PyMem_DEL(s);
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}
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static PyObject *
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SndCh_DisposeChannel(SndChObject *s, PyObject *args)
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{
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int quitNow = 1;
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if (PyTuple_Size(args) > 0) {
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if (!PyArg_Parse(args, "(i)", &quitNow))
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return NULL;
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}
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SndCh_Cleanup(s, quitNow);
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Py_INCREF(Py_None);
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return Py_None;
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}
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static int
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SndCh_OK(SndChObject *s)
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{
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if (s->chan == NULL) {
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PyErr_SetString(MacOS_Error, "channel is closed");
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return 0;
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}
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return 1;
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}
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static PyObject *
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SndCh_SndPlay(SndChObject *s, PyObject *args)
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{
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RsrcObject *r;
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int async = 0;
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if (!PyArg_Parse(args, "(O!)", RsrcType, &r)) {
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PyErr_Clear();
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if (!PyArg_Parse(args, "(O&i)", RsrcType, &r, &async))
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return NULL;
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}
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if (!SndCh_OK(s))
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return NULL;
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SndPlay(s->chan, r->h, async);
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *
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SndCh_SndDoCommand(SndChObject *s, PyObject *args)
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{
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SndCommand c;
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int noWait = 0;
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OSErr err;
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if (!PyArg_Parse(args, "(O&)", GetSndCommand, &c)) {
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PyErr_Clear();
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if (!PyArg_Parse(args, "(O&i)", GetSndCommand, &c, &noWait))
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return NULL;
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}
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if (!SndCh_OK(s))
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return NULL;
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err = SndDoCommand(s->chan, &c, noWait);
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return Err(err);
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}
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static PyObject *
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SndCh_SndDoImmediate(SndChObject *s, PyObject *args)
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{
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SndCommand c;
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OSErr err;
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if (!PyArg_Parse(args, "(O&)", GetSndCommand, &c))
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return 0;
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if (!SndCh_OK(s))
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return NULL;
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err = SndDoImmediate(s->chan, &c);
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return Err(err);
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}
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static PyMethodDef SndCh_Methods[] = {
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{"close", (PyCFunction)SndCh_DisposeChannel, 1},
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{"SndDisposeChannel", (PyCFunction)SndCh_DisposeChannel, 1},
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{"SndPlay", (PyCFunction)SndCh_SndPlay, 1},
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{"SndDoCommand", (PyCFunction)SndCh_SndDoCommand, 1},
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{"SndDoImmediate", (PyCFunction)SndCh_SndDoImmediate, 1},
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{NULL, NULL} /* Sentinel */
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};
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static PyObject *
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SndCh_GetAttr(PyObject *s, char *name)
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{
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return Py_FindMethod(SndCh_Methods, s, name);
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}
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static PyTypeObject SndChType = {
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PyObject_HEAD_INIT(&PyType_Type)
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0,
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"SoundChannel", /*tp_name*/
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sizeof(SndChObject), /*tp_basicsize*/
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0, /*tp_itemsize*/
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/* methods */
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(destructor)SndCh_Dealloc, /*tp_dealloc*/
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0, /*tp_print*/
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(getattrfunc)SndCh_GetAttr, /*tp_getattr*/
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0, /*tp_setattr*/
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0, /*tp_compare*/
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0, /*tp_repr*/
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0, /*tp_as_number*/
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0, /*tp_as_sequence*/
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0, /*tp_as_mapping*/
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0, /*tp_hash*/
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};
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/*----------------------------------------------------------------------*/
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/* Module */
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typedef struct {
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long A5;
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PyObject *callback;
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PyObject *channel;
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SndCommand cmd;
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} cbinfo;
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static int
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MySafeCallback(arg)
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void *arg;
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{
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cbinfo *p = (cbinfo *)arg;
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PyObject *args;
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PyObject *res;
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args = Py_BuildValue("(O(hhl))",
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p->channel, p->cmd.cmd, p->cmd.param1, p->cmd.param2);
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res = PyEval_CallObject(p->callback, args);
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Py_DECREF(args);
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if (res == NULL)
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return -1;
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DECREF(res);
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return 0;
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}
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static pascal void
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MyUserRoutine(SndChannelPtr chan, SndCommand cmd)
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{
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cbinfo *p = (cbinfo *)chan->userInfo;
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long A5 = SetA5(p->A5);
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p->cmd = cmd;
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Py_AddPendingCall(MySafeCallback, (void *)p);
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SetA5(A5);
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}
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static PyObject *
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MacOS_SndNewChannel(PyObject *self, PyObject *args)
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{
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SndChannelPtr chan;
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short synth;
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long init = 0;
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PyObject *callback = NULL;
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cbinfo *p = NULL;
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SndCallBackProcPtr userroutine = 0;
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OSErr err;
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PyObject *res;
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if (!PyArg_Parse(args, "(h)", &synth)) {
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PyErr_Clear();
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if (!PyArg_Parse(args, "(hl)", &synth, &init)) {
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PyErr_Clear();
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if (!PyArg_Parse(args, "(hlO)", &synth, &init, &callback))
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return NULL;
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}
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}
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if (callback != NULL) {
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p = NEW(cbinfo, 1);
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if (p == NULL)
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return PyErr_NoMemory();
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p->A5 = SetCurrentA5();
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p->callback = callback;
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userroutine = MyUserRoutine;
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}
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chan = NULL;
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err = SndNewChannel(&chan, synth, init, userroutine);
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if (err) {
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if (p)
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DEL(p);
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return Err(err);
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}
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res = (PyObject *)SndCh_FromSndChannelPtr(chan);
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if (res == NULL) {
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SndDisposeChannel(chan, 1);
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DEL(p);
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}
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else {
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chan->userInfo = (long)p;
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p->channel = res;
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}
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return res;
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}
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static PyObject *
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MacOS_SndPlay(PyObject *self, PyObject *args)
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{
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RsrcObject *r;
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OSErr err;
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if (!PyArg_Parse(args, "(O!)", &RsrcType, &r))
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return NULL;
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err = SndPlay((SndChannelPtr)NULL, r->h, 0);
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return Err(err);
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}
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static PyObject *
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MacOS_SndControl(PyObject *self, PyObject *args)
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{
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int id;
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SndCommand c;
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OSErr err;
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if (!PyArg_Parse(args, "(iO&)", &id, GetSndCommand, &c))
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return NULL;
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err = SndControl(id, &c);
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if (err)
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return Err(err);
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return Py_BuildValue("(hhl)", c.cmd, c.param1, c.param2);
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}
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static PyMethodDef MacOS_Methods[] = {
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{"GetResource", MacOS_GetResource, 1},
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{"GetNamedResource", MacOS_GetNamedResource, 1},
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{"SndNewChannel", MacOS_SndNewChannel, 1},
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{"SndPlay", MacOS_SndPlay, 1},
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{"SndControl", MacOS_SndControl, 1},
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{NULL, NULL} /* Sentinel */
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};
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void
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MacOS_Init()
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{
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PyObject *m, *d;
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m = Py_InitModule("MacOS", MacOS_Methods);
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d = PyModule_GetDict(m);
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/* Initialize MacOS.Error exception */
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MacOS_Error = PyString_FromString("MacOS.Error");
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if (MacOS_Error == NULL || PyDict_SetItemString(d, "Error", MacOS_Error) != 0)
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Py_FatalError("can't define MacOS.Error");
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}
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