jack_mixer_c.c

   1 /*
   2  * This file is part of jack_mixer
   3  *
   4  * Copyright (C) 2009 Frederic Peters <fpeters@0d.be>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 #include <Python.h>
  21
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <stdbool.h>
  25
  26 #include <structmember.h>
  27
  28 #include "jack_mixer.h"
  29
  30
  31 /** Scale Type **/
  32
  33 typedef struct {
  34         PyObject_HEAD
  35         jack_mixer_scale_t scale;
  36 } ScaleObject;
  37
  38 static void
  39 Scale_dealloc(ScaleObject *self)
  40 {
  41         if (self->scale)
  42                 scale_destroy(self->scale);
  43         self->ob_type->tp_free((PyObject*)self);
  44 }
  45
  46 static int
  47 Scale_init(ScaleObject *self, PyObject *args, PyObject *kwds)
  48 {
  49         self->scale = scale_create();
  50         return 0;
  51 }
  52
  53 static PyObject*
  54 Scale_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
  55 {
  56         ScaleObject *self;
  57
  58         self = (ScaleObject*)type->tp_alloc(type, 0);
  59
  60         return (PyObject*)self;
  61 }
  62
  63 static PyObject*
  64 Scale_add_threshold(ScaleObject *self, PyObject *args)
  65 {
  66         float db, scale_value;
  67
  68         if (! PyArg_ParseTuple(args, "ff", &db, &scale_value)) return NULL;
  69
  70         scale_add_threshold(self->scale, db, scale_value);
  71
  72         Py_INCREF(Py_None);
  73         return Py_None;
  74 }
  75
  76 static PyObject*
  77 Scale_calculate_coefficients(ScaleObject *self, PyObject *args)
  78 {
  79         if (! PyArg_ParseTuple(args, "")) return NULL;
  80         scale_calculate_coefficients(self->scale);
  81         Py_INCREF(Py_None);
  82         return Py_None;
  83 }
  84
  85 static PyObject*
  86 Scale_db_to_scale(ScaleObject *self, PyObject *args)
  87 {
  88         double db;
  89         if (! PyArg_ParseTuple(args, "d", &db)) return NULL;
  90         return PyFloat_FromDouble(scale_db_to_scale(self->scale, db));
  91 }
  92
  93 static PyObject*
  94 Scale_scale_to_db(ScaleObject *self, PyObject *args)
  95 {
  96         double scale_value;
  97         if (! PyArg_ParseTuple(args, "d", &scale_value)) return NULL;
  98         return PyFloat_FromDouble(scale_scale_to_db(self->scale, scale_value));
  99 }
 100
 101 static PyMethodDef Scale_methods[] = {
 102         {"add_threshold", (PyCFunction)Scale_add_threshold, METH_VARARGS, "Add threshold"},
 103         {"calculate_coefficients", (PyCFunction)Scale_calculate_coefficients,
 104                 METH_VARARGS, "Calculate coefficients"},
 105         {"db_to_scale", (PyCFunction)Scale_db_to_scale, METH_VARARGS, "dB to scale"},
 106         {"scale_to_db", (PyCFunction)Scale_scale_to_db, METH_VARARGS, "scale to dB"},
 107         {NULL}
 108 };
 109
 110 static PyTypeObject ScaleType = {
 111         PyObject_HEAD_INIT(NULL)
 112         0,       /*ob_size*/
 113         "jack_mixer_c.Scale",    /*tp_name*/
 114         sizeof(ScaleObject), /*tp_basicsize*/
 115         0,       /*tp_itemsize*/
 116         (destructor)Scale_dealloc,       /*tp_dealloc*/
 117         0,       /*tp_print*/
 118         0,       /*tp_getattr*/
 119         0,       /*tp_setattr*/
 120         0,       /*tp_compare*/
 121         0,       /*tp_repr*/
 122         0,       /*tp_as_number*/
 123         0,       /*tp_as_sequence*/
 124         0,       /*tp_as_mapping*/
 125         0,       /*tp_hash */
 126         0,       /*tp_call*/
 127         0,       /*tp_str*/
 128         0,       /*tp_getattro*/
 129         0,       /*tp_setattro*/
 130         0,       /*tp_as_buffer*/
 131         Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,  /*tp_flags*/
 132         "Scale objects",           /* tp_doc */
 133         0,                         /* tp_traverse */
 134         0,                         /* tp_clear */
 135         0,                         /* tp_richcompare */
 136         0,                         /* tp_weaklistoffset */
 137         0,                         /* tp_iter */
 138         0,                         /* tp_iternext */
 139         Scale_methods,             /* tp_methods */
 140         0,             /* tp_members */
 141         0,           /* tp_getset */
 142         0,                         /* tp_base */
 143         0,                         /* tp_dict */
 144         0,                         /* tp_descr_get */
 145         0,                         /* tp_descr_set */
 146         0,                         /* tp_dictoffset */
 147         (initproc)Scale_init,      /* tp_init */
 148         0,                         /* tp_alloc */
 149         Scale_new,                 /* tp_new */
 150 };
 151
 152
 153 /** Channel Type **/
 154
 155 typedef struct {
 156         PyObject_HEAD
 157         PyObject *midi_change_callback;
 158         jack_mixer_channel_t channel;
 159 } ChannelObject;
 160
 161 static void
 162 Channel_dealloc(ChannelObject *self)
 163 {
 164         Py_XDECREF(self->midi_change_callback);
 165         self->ob_type->tp_free((PyObject*)self);
 166 }
 167
 168 static int
 169 Channel_init(ChannelObject *self, PyObject *args, PyObject *kwds)
 170 {
 171         self->midi_change_callback = NULL;
 172         return 0;
 173 }
 174
 175 static PyObject*
 176 Channel_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 177 {
 178         ChannelObject *self;
 179
 180         self = (ChannelObject*)type->tp_alloc(type, 0);
 181
 182         if (self != NULL) {
 183                 self->channel = NULL;
 184                 self->midi_change_callback = NULL;
 185         }
 186
 187         return (PyObject*)self;
 188 }
 189
 190 static PyObject*
 191 Channel_get_is_stereo(ChannelObject *self, void *closure)
 192 {
 193         PyObject *result;
 194
 195         bool is_stereo = channel_is_stereo(self->channel);
 196         if (is_stereo) {
 197                 result = Py_True;
 198         } else {
 199                 result = Py_False;
 200         }
 201         Py_INCREF(result);
 202         return result;
 203 }
 204
 205 static PyObject*
 206 Channel_get_volume(ChannelObject *self, void *closure)
 207 {
 208         return PyFloat_FromDouble(channel_volume_read(self->channel));
 209 }
 210
 211 static int
 212 Channel_set_volume(ChannelObject *self, PyObject *value, void *closure)
 213 {
 214         if (self->channel == NULL) {
 215                 PyErr_SetString(PyExc_RuntimeError, "unitialized channel");
 216                 return -1;
 217         }
 218         channel_volume_write(self->channel, PyFloat_AsDouble(value));
 219         return 0;
 220 }
 221
 222 static PyObject*
 223 Channel_get_balance(ChannelObject *self, void *closure)
 224 {
 225         return PyFloat_FromDouble(channel_balance_read(self->channel));
 226 }
 227
 228 static int
 229 Channel_set_balance(ChannelObject *self, PyObject *value, void *closure)
 230 {
 231         channel_balance_write(self->channel, PyFloat_AsDouble(value));
 232         return 0;
 233 }
 234
 235 static PyObject*
 236 Channel_get_mute(ChannelObject *self, void *closure)
 237 {
 238         PyObject *result;
 239
 240         if (channel_is_muted(self->channel)) {
 241                 result = Py_True;
 242         } else {
 243                 result = Py_False;
 244         }
 245         Py_INCREF(result);
 246         return result;
 247 }
 248
 249 static PyObject*
 250 Channel_get_out_mute(ChannelObject *self, void *closure)
 251 {
 252         PyObject *result;
 253
 254     if (channel_is_out_muted(self->channel)) {
 255                 result = Py_True;
 256         } else {
 257                 result = Py_False;
 258         }
 259         Py_INCREF(result);
 260         return result;
 261 }
 262
 263 static int
 264 Channel_set_mute(ChannelObject *self, PyObject *value, void *closure)
 265 {
 266         if (value == Py_True) {
 267                 channel_mute(self->channel);
 268         } else {
 269                 channel_unmute(self->channel);
 270         }
 271         return 0;
 272 }
 273
 274 static int
 275 Channel_set_out_mute(ChannelObject *self, PyObject *value, void *closure)
 276 {
 277         if (value == Py_True) {
 278                 channel_out_mute(self->channel);
 279         } else {
 280                 channel_out_unmute(self->channel);
 281         }
 282         return 0;
 283 }
 284
 285 static PyObject*
 286 Channel_get_solo(ChannelObject *self, void *closure)
 287 {
 288         PyObject *result;
 289
 290         if (channel_is_soloed(self->channel)) {
 291                 result = Py_True;
 292         } else {
 293                 result = Py_False;
 294         }
 295         Py_INCREF(result);
 296         return result;
 297 }
 298
 299 static int
 300 Channel_set_solo(ChannelObject *self, PyObject *value, void *closure)
 301 {
 302         if (value == Py_True) {
 303                 channel_solo(self->channel);
 304         } else {
 305                 channel_unsolo(self->channel);
 306         }
 307         return 0;
 308 }
 309
 310 static PyObject*
 311 Channel_get_meter(ChannelObject *self, void *closure)
 312 {
 313         PyObject *result;
 314         double left, right;
 315
 316         if (channel_is_stereo(self->channel)) {
 317                 result = PyTuple_New(2);
 318                 channel_stereo_meter_read(self->channel, &left, &right);
 319                 PyTuple_SetItem(result, 0, PyFloat_FromDouble(left));
 320                 PyTuple_SetItem(result, 1, PyFloat_FromDouble(right));
 321         } else {
 322                 result = PyTuple_New(1);
 323                 channel_mono_meter_read(self->channel, &left);
 324                 PyTuple_SetItem(result, 0, PyFloat_FromDouble(left));
 325         }
 326         return result;
 327 }
 328
 329 static PyObject*
 330 Channel_get_abspeak(ChannelObject *self, void *closure)
 331 {
 332         return PyFloat_FromDouble(channel_abspeak_read(self->channel));
 333 }
 334
 335 static int
 336 Channel_set_abspeak(ChannelObject *self, PyObject *value, void *closure)
 337 {
 338         if (value != Py_None) {
 339                 fprintf(stderr, "abspeak can only be reset (set to None)\n");
 340                 return -1;
 341         }
 342         channel_abspeak_reset(self->channel);
 343         return 0;
 344 }
 345
 346 static int
 347 Channel_set_midi_scale(ChannelObject *self, PyObject *value, void *closure)
 348 {
 349         ScaleObject *scale_object = (ScaleObject*)value; /* XXX: check */
 350
 351         channel_set_midi_scale(self->channel, scale_object->scale);
 352         return 0;
 353 }
 354
 355
 356 static PyObject*
 357 Channel_get_midi_change_callback(ChannelObject *self, void *closure)
 358 {
 359         if (self->midi_change_callback) {
 360                 Py_INCREF(self->midi_change_callback);
 361                 return self->midi_change_callback;
 362         } else {
 363                 Py_INCREF(Py_None);
 364                 return Py_None;
 365         }
 366 }
 367
 368 static void
 369 channel_midi_callback(void *userdata)
 370 {
 371         ChannelObject *self = (ChannelObject*)userdata;
 372         PyGILState_STATE gstate;
 373
 374         gstate = PyGILState_Ensure();
 375         PyObject_CallObject(self->midi_change_callback, NULL);
 376         PyGILState_Release(gstate);
 377 }
 378
 379 static int
 380 Channel_set_midi_change_callback(ChannelObject *self, PyObject *value, void *closure)
 381 {
 382         if (value == Py_None) {
 383                 self->midi_change_callback = NULL;
 384                 channel_set_midi_change_callback(self->channel, NULL, NULL);
 385         } else {
 386                 if (!PyCallable_Check(value)) {
 387                         PyErr_SetString(PyExc_TypeError, "value must be callable");
 388                         return -1;
 389                 }
 390                 if (self->midi_change_callback) {
 391                         Py_XDECREF(self->midi_change_callback);
 392                 }
 393                 Py_INCREF(value);
 394                 self->midi_change_callback = value;
 395                 channel_set_midi_change_callback(self->channel,
 396                                 channel_midi_callback, self);
 397         }
 398
 399         return 0;
 400 }
 401
 402 static PyObject*
 403 Channel_get_name(ChannelObject *self, void *closure)
 404 {
 405         return PyString_FromString(channel_get_name(self->channel));
 406 }
 407
 408 static int
 409 Channel_set_name(ChannelObject *self, PyObject *value, void *closure)
 410 {
 411         channel_rename(self->channel, PyString_AsString(value));
 412         return 0;
 413 }
 414
 415 static PyObject*
 416 Channel_get_balance_midi_cc(ChannelObject *self, void *closure)
 417 {
 418         return PyInt_FromLong(channel_get_balance_midi_cc(self->channel));
 419 }
 420
 421 static int
 422 Channel_set_balance_midi_cc(ChannelObject *self, PyObject *value, void *closure)
 423 {
 424         unsigned int new_cc;
 425         unsigned int result;
 426
 427         new_cc = PyInt_AsLong(value);
 428         result = channel_set_balance_midi_cc(self->channel, new_cc);
 429         if (result == 0) {
 430                 return 0;
 431         }
 432         if (result == 1) {
 433                 PyErr_SetString(PyExc_RuntimeError, "value already in use");
 434         } else if (result == 2) {
 435                 PyErr_SetString(PyExc_RuntimeError, "value out of range");
 436         }
 437         return -1;
 438 }
 439
 440 static PyObject*
 441 Channel_get_volume_midi_cc(ChannelObject *self, void *closure)
 442 {
 443         return PyInt_FromLong(channel_get_volume_midi_cc(self->channel));
 444 }
 445
 446 static int
 447 Channel_set_volume_midi_cc(ChannelObject *self, PyObject *value, void *closure)
 448 {
 449         unsigned int new_cc;
 450         unsigned int result;
 451
 452         new_cc = PyInt_AsLong(value);
 453         result = channel_set_volume_midi_cc(self->channel, new_cc);
 454         if (result == 0) {
 455                 return 0;
 456         }
 457         if (result == 1) {
 458                 PyErr_SetString(PyExc_RuntimeError, "value already in use");
 459         } else if (result == 2) {
 460                 PyErr_SetString(PyExc_RuntimeError, "value out of range");
 461         }
 462         return -1;
 463 }
 464
 465 static PyObject*
 466 Channel_get_midi_in_got_events(ChannelObject *self, void *closure)
 467 {
 468         PyObject *result;
 469
 470         if (channel_get_midi_in_got_events(self->channel)) {
 471                 result = Py_True;
 472         } else {
 473                 result = Py_False;
 474         }
 475         Py_INCREF(result);
 476         return result;
 477 }
 478
 479
 480 static PyGetSetDef Channel_getseters[] = {
 481         {"is_stereo",
 482                 (getter)Channel_get_is_stereo, NULL,
 483                 "mono/stereo", NULL},
 484         {"volume",
 485                 (getter)Channel_get_volume, (setter)Channel_set_volume,
 486                 "volume", NULL},
 487         {"balance",
 488                 (getter)Channel_get_balance, (setter)Channel_set_balance,
 489                 "balance", NULL},
 490         {"mute",
 491                 (getter)Channel_get_mute, (setter)Channel_set_mute,
 492                 "mute", NULL},
 493         {"out_mute",
 494                 (getter)Channel_get_out_mute, (setter)Channel_set_out_mute,
 495                 "out_mute", NULL},
 496         {"solo",
 497                 (getter)Channel_get_solo, (setter)Channel_set_solo,
 498                 "solo", NULL},
 499         {"meter",
 500                 (getter)Channel_get_meter, NULL,
 501                 "meter", NULL},
 502         {"abspeak",
 503                 (getter)Channel_get_abspeak, (setter)Channel_set_abspeak,
 504                 "balance", NULL},
 505         {"midi_scale",
 506                 NULL, (setter)Channel_set_midi_scale,
 507                 "midi scale", NULL},
 508         {"midi_change_callback",
 509                 (getter)Channel_get_midi_change_callback,
 510                 (setter)Channel_set_midi_change_callback,
 511                 "midi change callback", NULL},
 512         {"name",
 513                 (getter)Channel_get_name,
 514                 (setter)Channel_set_name,
 515                 "name", NULL},
 516         {"balance_midi_cc",
 517                 (getter)Channel_get_balance_midi_cc,
 518                 (setter)Channel_set_balance_midi_cc,
 519                 "Balance MIDI CC", NULL},
 520         {"volume_midi_cc",
 521                 (getter)Channel_get_volume_midi_cc,
 522                 (setter)Channel_set_volume_midi_cc,
 523                 "Volume MIDI CC", NULL},
 524         {"midi_in_got_events",
 525                 (getter)Channel_get_midi_in_got_events, NULL,
 526                 "Got new MIDI IN events", NULL},
 527         {NULL}
 528 };
 529
 530 static PyObject*
 531 Channel_remove(ChannelObject *self, PyObject *args)
 532 {
 533         if (! PyArg_ParseTuple(args, "")) return NULL;
 534         remove_channel(self->channel);
 535         Py_INCREF(Py_None);
 536         return Py_None;
 537 }
 538
 539 static PyObject*
 540 Channel_autoset_midi_cc(ChannelObject *self, PyObject *args)
 541 {
 542         if (! PyArg_ParseTuple(args, "")) return NULL;
 543         channel_autoset_midi_cc(self->channel);
 544         Py_INCREF(Py_None);
 545         return Py_None;
 546 }
 547
 548 static PyMethodDef channel_methods[] = {
 549         {"remove", (PyCFunction)Channel_remove, METH_VARARGS, "Remove"},
 550         {"autoset_midi_cc", (PyCFunction)Channel_autoset_midi_cc, METH_VARARGS, "Autoset MIDI CC"},
 551         {NULL}
 552 };
 553
 554 static PyTypeObject ChannelType = {
 555         PyObject_HEAD_INIT(NULL)
 556         0,       /*ob_size*/
 557         "jack_mixer_c.Channel",    /*tp_name*/
 558         sizeof(ChannelObject), /*tp_basicsize*/
 559         0,       /*tp_itemsize*/
 560         (destructor)Channel_dealloc,       /*tp_dealloc*/
 561         0,       /*tp_print*/
 562         0,       /*tp_getattr*/
 563         0,       /*tp_setattr*/
 564         0,       /*tp_compare*/
 565         0,       /*tp_repr*/
 566         0,       /*tp_as_number*/
 567         0,       /*tp_as_sequence*/
 568         0,       /*tp_as_mapping*/
 569         0,       /*tp_hash */
 570         0,       /*tp_call*/
 571         0,       /*tp_str*/
 572         0,       /*tp_getattro*/
 573         0,       /*tp_setattro*/
 574         0,       /*tp_as_buffer*/
 575         Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,  /*tp_flags*/
 576         "Channel objects",           /* tp_doc */
 577         0,                         /* tp_traverse */
 578         0,                         /* tp_clear */
 579         0,                         /* tp_richcompare */
 580         0,                         /* tp_weaklistoffset */
 581         0,                         /* tp_iter */
 582         0,                         /* tp_iternext */
 583         channel_methods,           /* tp_methods */
 584         0,             /* tp_members */
 585         Channel_getseters,           /* tp_getset */
 586         0,                         /* tp_base */
 587         0,                         /* tp_dict */
 588         0,                         /* tp_descr_get */
 589         0,                         /* tp_descr_set */
 590         0,                         /* tp_dictoffset */
 591         (initproc)Channel_init,    /* tp_init */
 592         0,                         /* tp_alloc */
 593         Channel_new,                 /* tp_new */
 594 };
 595
 596 static PyObject*
 597 Channel_New(jack_mixer_channel_t channel)
 598 {
 599         ChannelObject *self;
 600         self = (ChannelObject*)PyObject_NEW(ChannelObject, &ChannelType);
 601         if (self != NULL) {
 602                 self->channel = channel;
 603                 self->midi_change_callback = NULL;
 604         }
 605         return (PyObject*)self;
 606 }
 607
 608 /** Output Channel Type **/
 609
 610 typedef struct {
 611         PyObject_HEAD
 612         PyObject *midi_change_callback;
 613         jack_mixer_output_channel_t *output_channel;
 614 } OutputChannelObject;
 615
 616 static int
 617 OutputChannel_set_prefader(OutputChannelObject *self, PyObject *value, void *closure)
 618 {
 619         if (value == Py_True) {
 620                 output_channel_set_prefader(self->output_channel, true);
 621         } else {
 622                 output_channel_set_prefader(self->output_channel, false);
 623         }
 624         return 0;
 625 }
 626
 627 static PyObject*
 628 OutputChannel_get_prefader(OutputChannelObject *self, void *closure)
 629 {
 630         PyObject *result;
 631
 632         if (output_channel_is_prefader(self->output_channel)) {
 633                 result = Py_True;
 634         } else {
 635                 result = Py_False;
 636         }
 637         Py_INCREF(result);
 638         return result;
 639 }
 640
 641 static PyGetSetDef OutputChannel_getseters[] = {
 642         {"prefader",
 643                 (getter)OutputChannel_get_prefader, (setter)OutputChannel_set_prefader,
 644                 "prefader", NULL},
 645         {NULL}
 646 };
 647
 648 static PyObject*
 649 OutputChannel_remove(OutputChannelObject *self, PyObject *args)
 650 {
 651         if (! PyArg_ParseTuple(args, "")) return NULL;
 652         remove_output_channel(self->output_channel);
 653         Py_INCREF(Py_None);
 654         return Py_None;
 655 }
 656
 657 static PyObject*
 658 OutputChannel_set_solo(OutputChannelObject *self, PyObject *args)
 659 {
 660         PyObject *channel;
 661         unsigned char solo;
 662
 663         if (! PyArg_ParseTuple(args, "Ob", &channel, &solo)) return NULL;
 664
 665         output_channel_set_solo(self->output_channel,
 666                         ((ChannelObject*)channel)->channel,
 667                         solo);
 668
 669         Py_INCREF(Py_None);
 670         return Py_None;
 671 }
 672
 673 static PyObject*
 674 OutputChannel_set_muted(OutputChannelObject *self, PyObject *args)
 675 {
 676         PyObject *channel;
 677         unsigned char muted;
 678
 679         if (! PyArg_ParseTuple(args, "Ob", &channel, &muted)) return NULL;
 680
 681         output_channel_set_muted(self->output_channel,
 682                         ((ChannelObject*)channel)->channel,
 683                         muted);
 684
 685         Py_INCREF(Py_None);
 686         return Py_None;
 687 }
 688
 689 static PyObject*
 690 OutputChannel_is_solo(OutputChannelObject *self, PyObject *args)
 691 {
 692         PyObject *channel;
 693         PyObject *result;
 694
 695         if (! PyArg_ParseTuple(args, "O", &channel)) return NULL;
 696
 697         if (output_channel_is_solo(self->output_channel,
 698                         ((ChannelObject*)channel)->channel)) {
 699                 result = Py_True;
 700         } else {
 701                 result = Py_False;
 702         }
 703
 704         Py_INCREF(result);
 705         return result;
 706 }
 707
 708 static PyObject*
 709 OutputChannel_is_muted(OutputChannelObject *self, PyObject *args)
 710 {
 711         PyObject *channel;
 712         PyObject *result;
 713
 714         if (! PyArg_ParseTuple(args, "O", &channel)) return NULL;
 715
 716         if (output_channel_is_muted(self->output_channel,
 717                         ((ChannelObject*)channel)->channel)) {
 718                 result = Py_True;
 719         } else {
 720                 result = Py_False;
 721         }
 722
 723         Py_INCREF(result);
 724         return result;
 725 }
 726
 727 static PyMethodDef output_channel_methods[] = {
 728         {"remove", (PyCFunction)OutputChannel_remove, METH_VARARGS, "Remove"},
 729         {"set_solo", (PyCFunction)OutputChannel_set_solo, METH_VARARGS, "Set a channel as solo"},
 730         {"set_muted", (PyCFunction)OutputChannel_set_muted, METH_VARARGS, "Set a channel as muted"},
 731         {"is_solo", (PyCFunction)OutputChannel_is_solo, METH_VARARGS, "Is a channel set as solo"},
 732         {"is_muted", (PyCFunction)OutputChannel_is_muted, METH_VARARGS, "Is a channel set as muted"},
 733         {NULL}
 734 };
 735
 736 static PyTypeObject OutputChannelType = {
 737         PyObject_HEAD_INIT(NULL)
 738         0,       /*ob_size*/
 739         "jack_mixer_c.OutputChannel",    /*tp_name*/
 740         sizeof(OutputChannelObject), /*tp_basicsize*/
 741         0,       /*tp_itemsize*/
 742         0,       /*tp_dealloc*/
 743         0,       /*tp_print*/
 744         0,       /*tp_getattr*/
 745         0,       /*tp_setattr*/
 746         0,       /*tp_compare*/
 747         0,       /*tp_repr*/
 748         0,       /*tp_as_number*/
 749         0,       /*tp_as_sequence*/
 750         0,       /*tp_as_mapping*/
 751         0,       /*tp_hash */
 752         0,       /*tp_call*/
 753         0,       /*tp_str*/
 754         0,       /*tp_getattro*/
 755         0,       /*tp_setattro*/
 756         0,       /*tp_as_buffer*/
 757         Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,  /*tp_flags*/
 758         "Output Channel objects",           /* tp_doc */
 759         0,                         /* tp_traverse */
 760         0,                         /* tp_clear */
 761         0,                         /* tp_richcompare */
 762         0,                         /* tp_weaklistoffset */
 763         0,                         /* tp_iter */
 764         0,                         /* tp_iternext */
 765         output_channel_methods,    /* tp_methods */
 766         0,             /* tp_members */
 767         OutputChannel_getseters,   /* tp_getset */
 768         &ChannelType,              /* tp_base */
 769         0,                         /* tp_dict */
 770         0,                         /* tp_descr_get */
 771         0,                         /* tp_descr_set */
 772         0,                         /* tp_dictoffset */
 773         0,                         /* tp_init */
 774         0,                         /* tp_alloc */
 775         0,                         /* tp_new */
 776 };
 777
 778 static PyObject*
 779 OutputChannel_New(jack_mixer_output_channel_t output_channel)
 780 {
 781         OutputChannelObject *self;
 782         self = (OutputChannelObject*)PyObject_NEW(OutputChannelObject, &OutputChannelType);
 783         if (self != NULL) {
 784                 self->midi_change_callback = NULL;
 785                 self->output_channel = output_channel;
 786         }
 787         return (PyObject*)self;
 788 }
 789
 790
 791 /** Mixer Type **/
 792
 793 typedef struct {
 794         PyObject_HEAD
 795         PyObject *main_mix_channel;
 796         jack_mixer_t mixer;
 797 } MixerObject;
 798
 799 static void
 800 Mixer_dealloc(MixerObject *self)
 801 {
 802         Py_XDECREF(self->main_mix_channel);
 803         if (self->mixer)
 804                 destroy(self->mixer);
 805         self->ob_type->tp_free((PyObject*)self);
 806 }
 807
 808 static PyObject*
 809 Mixer_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 810 {
 811         MixerObject *self;
 812
 813         self = (MixerObject*)type->tp_alloc(type, 0);
 814
 815         if (self != NULL) {
 816                 self->main_mix_channel = NULL;
 817                 self->mixer = NULL;
 818         }
 819
 820         return (PyObject*)self;
 821 }
 822
 823 static int
 824 Mixer_init(MixerObject *self, PyObject *args, PyObject *kwds)
 825 {
 826         static char *kwlist[] = {"name", "stereo", NULL};
 827         char *name;
 828         int stereo = 1;
 829
 830         if (!PyArg_ParseTupleAndKeywords(args, kwds, "s|b", kwlist, &name, &stereo))
 831                 return -1;
 832
 833         self->mixer = create(name, (bool)stereo);
 834         if (self->mixer == NULL) {
 835                 PyErr_SetString(PyExc_RuntimeError,
 836                                 "error creating mixer, probably jack is not running");
 837                 return -1;
 838         }
 839
 840         self->main_mix_channel = Channel_New(get_main_mix_channel(self->mixer));
 841
 842         return 0;
 843 }
 844
 845 static PyMemberDef Mixer_members[] = {
 846         {"main_mix_channel", T_OBJECT, offsetof(MixerObject, main_mix_channel), 0, "main_mix_channel"},
 847         {NULL}
 848 };
 849
 850 static PyObject*
 851 Mixer_get_channels_count(MixerObject *self, void *closure)
 852 {
 853         return PyInt_FromLong(get_channels_count(self->mixer));
 854 }
 855
 856 static PyObject*
 857 Mixer_get_client_name(MixerObject *self, void *closure)
 858 {
 859         return PyString_FromString(get_client_name(self->mixer));
 860 }
 861
 862 static PyObject*
 863 Mixer_get_last_midi_channel(MixerObject *self, void *closure)
 864 {
 865         return PyInt_FromLong(get_last_midi_channel(self->mixer));
 866 }
 867
 868
 869 static PyGetSetDef Mixer_getseters[] = {
 870         {"channels_count", (getter)Mixer_get_channels_count, NULL,
 871                 "channels count", NULL},
 872         {"last_midi_channel", (getter)Mixer_get_last_midi_channel, NULL,
 873                 "last midi channel", NULL},
 874         {NULL}
 875 };
 876
 877 static PyObject*
 878 Mixer_add_channel(MixerObject *self, PyObject *args)
 879 {
 880         char *name;
 881         int stereo;
 882         jack_mixer_channel_t channel;
 883
 884         if (! PyArg_ParseTuple(args, "si", &name, &stereo)) return NULL;
 885
 886         channel = add_channel(self->mixer, name, (bool)stereo);
 887
 888         if (channel == NULL) {
 889                 PyErr_SetString(PyExc_RuntimeError, "error adding channel");
 890                 return NULL;
 891         }
 892
 893         return Channel_New(channel);
 894 }
 895
 896 static PyObject*
 897 Mixer_add_output_channel(MixerObject *self, PyObject *args)
 898 {
 899         char *name;
 900         int stereo = 1;
 901         int system = 0;
 902         jack_mixer_output_channel_t channel;
 903
 904         if (! PyArg_ParseTuple(args, "s|bb", &name, &stereo, &system)) return NULL;
 905
 906         channel = add_output_channel(self->mixer, name, (bool)stereo, (bool)system);
 907
 908         return OutputChannel_New(channel);
 909 }
 910
 911 static PyObject*
 912 Mixer_destroy(MixerObject *self, PyObject *args)
 913 {
 914         if (self->mixer) {
 915                 destroy(self->mixer);
 916                 self->mixer = NULL;
 917         }
 918         Py_INCREF(Py_None);
 919         return Py_None;
 920 }
 921
 922 static PyMethodDef Mixer_methods[] = {
 923         {"add_channel", (PyCFunction)Mixer_add_channel, METH_VARARGS, "Add a new channel"},
 924         {"add_output_channel", (PyCFunction)Mixer_add_output_channel, METH_VARARGS, "Add a new output channel"},
 925         {"destroy", (PyCFunction)Mixer_destroy, METH_VARARGS, "Destroy JACK Mixer"},
 926         {"client_name", (PyCFunction)Mixer_get_client_name, METH_VARARGS, "Get jack client name"},
 927 //      {"remove_channel", (PyCFunction)Mixer_remove_channel, METH_VARARGS, "Remove a channel"},
 928         {NULL}
 929 };
 930
 931 static PyTypeObject MixerType = {
 932         PyObject_HEAD_INIT(NULL)
 933         0,       /*ob_size*/
 934         "jack_mixer_c.Mixer",    /*tp_name*/
 935         sizeof(MixerObject), /*tp_basicsize*/
 936         0,       /*tp_itemsize*/
 937         (destructor)Mixer_dealloc,       /*tp_dealloc*/
 938         0,       /*tp_print*/
 939         0,       /*tp_getattr*/
 940         0,       /*tp_setattr*/
 941         0,       /*tp_compare*/
 942         0,       /*tp_repr*/
 943         0,       /*tp_as_number*/
 944         0,       /*tp_as_sequence*/
 945         0,       /*tp_as_mapping*/
 946         0,       /*tp_hash */
 947         0,       /*tp_call*/
 948         0,       /*tp_str*/
 949         0,       /*tp_getattro*/
 950         0,       /*tp_setattro*/
 951         0,       /*tp_as_buffer*/
 952         Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,  /*tp_flags*/
 953         "Mixer objects",           /* tp_doc */
 954         0,                         /* tp_traverse */
 955         0,                         /* tp_clear */
 956         0,                         /* tp_richcompare */
 957         0,                         /* tp_weaklistoffset */
 958         0,                         /* tp_iter */
 959         0,                         /* tp_iternext */
 960         Mixer_methods,             /* tp_methods */
 961         Mixer_members,             /* tp_members */
 962         Mixer_getseters,           /* tp_getset */
 963         0,                         /* tp_base */
 964         0,                         /* tp_dict */
 965         0,                         /* tp_descr_get */
 966         0,                         /* tp_descr_set */
 967         0,                         /* tp_dictoffset */
 968         (initproc)Mixer_init,      /* tp_init */
 969         0,                         /* tp_alloc */
 970         Mixer_new,                 /* tp_new */
 971 };
 972
 973
 974 static PyMethodDef jack_mixer_methods[] = {
 975         {NULL}  /* Sentinel */
 976 };
 977
 978
 979
 980 PyMODINIT_FUNC initjack_mixer_c(void)
 981 {
 982         PyObject *m;
 983
 984         if (PyType_Ready(&MixerType) < 0)
 985                 return;
 986         if (PyType_Ready(&ChannelType) < 0)
 987                 return;
 988         if (PyType_Ready(&OutputChannelType) < 0)
 989                 return;
 990         if (PyType_Ready(&ScaleType) < 0)
 991                 return;
 992
 993         m = Py_InitModule3("jack_mixer_c", jack_mixer_methods, "Jack Mixer C Helper Module");
 994
 995         Py_INCREF(&MixerType);
 996         PyModule_AddObject(m, "Mixer", (PyObject*)&MixerType);
 997         Py_INCREF(&ChannelType);
 998         PyModule_AddObject(m, "Channel", (PyObject*)&ChannelType);
 999         Py_INCREF(&OutputChannelType);
1000         PyModule_AddObject(m, "OutputChannel", (PyObject*)&OutputChannelType);
1001         Py_INCREF(&ScaleType);
1002         PyModule_AddObject(m, "Scale", (PyObject*)&ScaleType);
1003 }
1004