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         Py_TYPE(self)->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         PyVarObject_HEAD_INIT(NULL, 0)
 112         "jack_mixer_c.Scale",    /*tp_name*/
 113         sizeof(ScaleObject), /*tp_basicsize*/
 114         0,       /*tp_itemsize*/
 115         (destructor)Scale_dealloc,       /*tp_dealloc*/
 116         0,       /*tp_print*/
 117         0,       /*tp_getattr*/
 118         0,       /*tp_setattr*/
 119         0,       /*tp_compare*/
 120         0,       /*tp_repr*/
 121         0,       /*tp_as_number*/
 122         0,       /*tp_as_sequence*/
 123         0,       /*tp_as_mapping*/
 124         0,       /*tp_hash */
 125         0,       /*tp_call*/
 126         0,       /*tp_str*/
 127         0,       /*tp_getattro*/
 128         0,       /*tp_setattro*/
 129         0,       /*tp_as_buffer*/
 130         Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,  /*tp_flags*/
 131         "Scale objects",           /* tp_doc */
 132         0,                         /* tp_traverse */
 133         0,                         /* tp_clear */
 134         0,                         /* tp_richcompare */
 135         0,                         /* tp_weaklistoffset */
 136         0,                         /* tp_iter */
 137         0,                         /* tp_iternext */
 138         Scale_methods,             /* tp_methods */
 139         0,             /* tp_members */
 140         0,           /* tp_getset */
 141         0,                         /* tp_base */
 142         0,                         /* tp_dict */
 143         0,                         /* tp_descr_get */
 144         0,                         /* tp_descr_set */
 145         0,                         /* tp_dictoffset */
 146         (initproc)Scale_init,      /* tp_init */
 147         0,                         /* tp_alloc */
 148         Scale_new,                 /* tp_new */
 149 };
 150
 151
 152 /** Channel Type **/
 153
 154 typedef struct {
 155         PyObject_HEAD
 156         PyObject *midi_change_callback;
 157         jack_mixer_channel_t channel;
 158 } ChannelObject;
 159
 160 static void
 161 Channel_dealloc(ChannelObject *self)
 162 {
 163         Py_XDECREF(self->midi_change_callback);
 164         Py_TYPE(self)->tp_free((PyObject*)self);
 165 }
 166
 167 static int
 168 Channel_init(ChannelObject *self, PyObject *args, PyObject *kwds)
 169 {
 170         self->midi_change_callback = NULL;
 171         return 0;
 172 }
 173
 174 static PyObject*
 175 Channel_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 176 {
 177         ChannelObject *self;
 178
 179         self = (ChannelObject*)type->tp_alloc(type, 0);
 180
 181         if (self != NULL) {
 182                 self->channel = NULL;
 183                 self->midi_change_callback = NULL;
 184         }
 185
 186         return (PyObject*)self;
 187 }
 188
 189 static PyObject*
 190 Channel_get_is_stereo(ChannelObject *self, void *closure)
 191 {
 192         PyObject *result;
 193
 194         bool is_stereo = channel_is_stereo(self->channel);
 195         if (is_stereo) {
 196                 result = Py_True;
 197         } else {
 198                 result = Py_False;
 199         }
 200         Py_INCREF(result);
 201         return result;
 202 }
 203
 204 static PyObject*
 205 Channel_get_volume(ChannelObject *self, void *closure)
 206 {
 207         return PyFloat_FromDouble(channel_volume_read(self->channel));
 208 }
 209
 210 static int
 211 Channel_set_volume(ChannelObject *self, PyObject *value, void *closure)
 212 {
 213         if (self->channel == NULL) {
 214                 PyErr_SetString(PyExc_RuntimeError, "unitialized channel");
 215                 return -1;
 216         }
 217         channel_volume_write(self->channel, PyFloat_AsDouble(value));
 218         channel_set_midi_cc_volume_picked_up(self->channel, false);
 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         channel_set_midi_cc_balance_picked_up(self->channel, false);
 233         return 0;
 234 }
 235
 236 static PyObject*
 237 Channel_get_out_mute(ChannelObject *self, void *closure)
 238 {
 239         PyObject *result;
 240
 241         if (channel_is_out_muted(self->channel)) {
 242                 result = Py_True;
 243         } else {
 244                 result = Py_False;
 245         }
 246         Py_INCREF(result);
 247         return result;
 248 }
 249
 250 static int
 251 Channel_set_out_mute(ChannelObject *self, PyObject *value, void *closure)
 252 {
 253         if (value == Py_True) {
 254                 channel_out_mute(self->channel);
 255         } else {
 256                 channel_out_unmute(self->channel);
 257         }
 258         return 0;
 259 }
 260
 261 static PyObject*
 262 Channel_get_solo(ChannelObject *self, void *closure)
 263 {
 264         PyObject *result;
 265
 266         if (channel_is_soloed(self->channel)) {
 267                 result = Py_True;
 268         } else {
 269                 result = Py_False;
 270         }
 271         Py_INCREF(result);
 272         return result;
 273 }
 274
 275 static int
 276 Channel_set_solo(ChannelObject *self, PyObject *value, void *closure)
 277 {
 278         if (value == Py_True) {
 279                 channel_solo(self->channel);
 280         } else {
 281                 channel_unsolo(self->channel);
 282         }
 283         return 0;
 284 }
 285
 286 static PyObject*
 287 Channel_get_meter(ChannelObject *self, void *closure)
 288 {
 289         PyObject *result;
 290         double left, right;
 291
 292         if (channel_is_stereo(self->channel)) {
 293                 result = PyTuple_New(2);
 294                 channel_stereo_meter_read(self->channel, &left, &right);
 295                 PyTuple_SetItem(result, 0, PyFloat_FromDouble(left));
 296                 PyTuple_SetItem(result, 1, PyFloat_FromDouble(right));
 297         } else {
 298                 result = PyTuple_New(1);
 299                 channel_mono_meter_read(self->channel, &left);
 300                 PyTuple_SetItem(result, 0, PyFloat_FromDouble(left));
 301         }
 302         return result;
 303 }
 304
 305 static PyObject*
 306 Channel_get_kmeter(ChannelObject *self, void *closure)
 307 {
 308         PyObject *result;
 309         double peak_left, peak_right, rms_left, rms_right;
 310
 311         if (channel_is_stereo(self->channel)) {
 312                 result = PyTuple_New(4);
 313                 channel_stereo_kmeter_read(self->channel, &peak_left, &peak_right, &rms_left, &rms_right);
 314                 PyTuple_SetItem(result, 0, PyFloat_FromDouble(peak_left));
 315                 PyTuple_SetItem(result, 1, PyFloat_FromDouble(peak_right));
 316                 PyTuple_SetItem(result, 2, PyFloat_FromDouble(rms_left));
 317                 PyTuple_SetItem(result, 3, PyFloat_FromDouble(rms_right));
 318         } else {
 319                 result = PyTuple_New(2);
 320                 channel_mono_kmeter_read(self->channel, &peak_left, &rms_left);
 321                 PyTuple_SetItem(result, 0, PyFloat_FromDouble(peak_left));
 322                 PyTuple_SetItem(result, 1, PyFloat_FromDouble(rms_left));
 323         }
 324         return result;
 325 }
 326
 327 static PyObject*
 328 Channel_get_abspeak(ChannelObject *self, void *closure)
 329 {
 330         return PyFloat_FromDouble(channel_abspeak_read(self->channel));
 331 }
 332
 333 static int
 334 Channel_set_abspeak(ChannelObject *self, PyObject *value, void *closure)
 335 {
 336         if (value != Py_None) {
 337                 fprintf(stderr, "abspeak can only be reset (set to None)\n");
 338                 return -1;
 339         }
 340         channel_abspeak_reset(self->channel);
 341         return 0;
 342 }
 343
 344 static int
 345 Channel_set_midi_scale(ChannelObject *self, PyObject *value, void *closure)
 346 {
 347         ScaleObject *scale_object = (ScaleObject*)value; /* XXX: check */
 348
 349         channel_set_midi_scale(self->channel, scale_object->scale);
 350         return 0;
 351 }
 352
 353
 354 static PyObject*
 355 Channel_get_midi_change_callback(ChannelObject *self, void *closure)
 356 {
 357         if (self->midi_change_callback) {
 358                 Py_INCREF(self->midi_change_callback);
 359                 return self->midi_change_callback;
 360         } else {
 361                 Py_INCREF(Py_None);
 362                 return Py_None;
 363         }
 364 }
 365
 366 static void
 367 channel_midi_callback(void *userdata)
 368 {
 369         ChannelObject *self = (ChannelObject*)userdata;
 370         PyGILState_STATE gstate;
 371
 372         gstate = PyGILState_Ensure();
 373         PyObject_CallObject(self->midi_change_callback, NULL);
 374         PyGILState_Release(gstate);
 375 }
 376
 377 static int
 378 Channel_set_midi_change_callback(ChannelObject *self, PyObject *value, void *closure)
 379 {
 380         if (value == Py_None) {
 381                 self->midi_change_callback = NULL;
 382                 channel_set_midi_change_callback(self->channel, NULL, NULL);
 383         } else {
 384                 if (!PyCallable_Check(value)) {
 385                         PyErr_SetString(PyExc_TypeError, "value must be callable");
 386                         return -1;
 387                 }
 388                 if (self->midi_change_callback) {
 389                         Py_XDECREF(self->midi_change_callback);
 390                 }
 391                 Py_INCREF(value);
 392                 self->midi_change_callback = value;
 393                 channel_set_midi_change_callback(self->channel,
 394                                 channel_midi_callback, self);
 395         }
 396
 397         return 0;
 398 }
 399
 400 static PyObject*
 401 Channel_get_name(ChannelObject *self, void *closure)
 402 {
 403         return PyUnicode_FromString(channel_get_name(self->channel));
 404 }
 405
 406 static int
 407 Channel_set_name(ChannelObject *self, PyObject *value, void *closure)
 408 {
 409         channel_rename(self->channel, PyUnicode_AsUTF8(value));
 410         return 0;
 411 }
 412
 413 static PyObject*
 414 Channel_get_balance_midi_cc(ChannelObject *self, void *closure)
 415 {
 416         return PyLong_FromLong(channel_get_balance_midi_cc(self->channel));
 417 }
 418
 419 static int
 420 Channel_set_balance_midi_cc(ChannelObject *self, PyObject *value, void *closure)
 421 {
 422         int new_cc;
 423         unsigned int result;
 424
 425         new_cc = PyLong_AsLong(value);
 426         result = channel_set_balance_midi_cc(self->channel, new_cc);
 427         if (result == 0) {
 428                 return 0;
 429         }
 430         if (result == 2) {
 431                 PyErr_SetString(PyExc_RuntimeError, "value out of range");
 432         }
 433         return -1;
 434 }
 435
 436 static PyObject*
 437 Channel_get_volume_midi_cc(ChannelObject *self, void *closure)
 438 {
 439         return PyLong_FromLong(channel_get_volume_midi_cc(self->channel));
 440 }
 441
 442 static int
 443 Channel_set_volume_midi_cc(ChannelObject *self, PyObject *value, void *closure)
 444 {
 445         int new_cc;
 446         unsigned int result;
 447
 448         new_cc = PyLong_AsLong(value);
 449         result = channel_set_volume_midi_cc(self->channel, new_cc);
 450         if (result == 0) {
 451                 return 0;
 452         }
 453         if (result == 2) {
 454                 PyErr_SetString(PyExc_RuntimeError, "value out of range");
 455         }
 456         return -1;
 457 }
 458
 459 static PyObject*
 460 Channel_get_mute_midi_cc(ChannelObject *self, void *closure)
 461 {
 462         return PyLong_FromLong(channel_get_mute_midi_cc(self->channel));
 463 }
 464
 465 static int
 466 Channel_set_mute_midi_cc(ChannelObject *self, PyObject *value, void *closure)
 467 {
 468         int new_cc;
 469         unsigned int result;
 470
 471         new_cc = PyLong_AsLong(value);
 472         result = channel_set_mute_midi_cc(self->channel, new_cc);
 473         if (result == 0) {
 474                 return 0;
 475         }
 476         if (result == 2) {
 477                 PyErr_SetString(PyExc_RuntimeError, "value out of range");
 478         }
 479         return -1;
 480 }
 481
 482 static PyObject*
 483 Channel_get_solo_midi_cc(ChannelObject *self, void *closure)
 484 {
 485         return PyLong_FromLong(channel_get_solo_midi_cc(self->channel));
 486 }
 487
 488 static int
 489 Channel_set_solo_midi_cc(ChannelObject *self, PyObject *value, void *closure)
 490 {
 491         int new_cc;
 492         unsigned int result;
 493
 494         new_cc = PyLong_AsLong(value);
 495         result = channel_set_solo_midi_cc(self->channel, new_cc);
 496         if (result == 0) {
 497                 return 0;
 498         }
 499         if (result == 2) {
 500                 PyErr_SetString(PyExc_RuntimeError, "value out of range");
 501         }
 502         return -1;
 503 }
 504
 505 static PyObject*
 506 Channel_get_midi_in_got_events(ChannelObject *self, void *closure)
 507 {
 508         PyObject *result;
 509
 510         if (channel_get_midi_in_got_events(self->channel)) {
 511                 result = Py_True;
 512         } else {
 513                 result = Py_False;
 514         }
 515         Py_INCREF(result);
 516         return result;
 517 }
 518
 519 static PyGetSetDef Channel_getseters[] = {
 520         {"is_stereo",
 521                 (getter)Channel_get_is_stereo, NULL,
 522                 "mono/stereo", NULL},
 523         {"volume",
 524                 (getter)Channel_get_volume, (setter)Channel_set_volume,
 525                 "volume", NULL},
 526         {"balance",
 527                 (getter)Channel_get_balance, (setter)Channel_set_balance,
 528                 "balance", NULL},
 529         {"out_mute",
 530                 (getter)Channel_get_out_mute, (setter)Channel_set_out_mute,
 531                 "out_mute", NULL},
 532         {"solo",
 533                 (getter)Channel_get_solo, (setter)Channel_set_solo,
 534                 "solo", NULL},
 535         {"meter",
 536                 (getter)Channel_get_meter, NULL,
 537                 "meter", NULL},
 538         {"kmeter",
 539                 (getter)Channel_get_kmeter, NULL,
 540                 "kmeter", NULL},
 541         {"abspeak",
 542                 (getter)Channel_get_abspeak, (setter)Channel_set_abspeak,
 543                 "balance", NULL},
 544         {"midi_scale",
 545                 NULL, (setter)Channel_set_midi_scale,
 546                 "midi scale", NULL},
 547         {"midi_change_callback",
 548                 (getter)Channel_get_midi_change_callback,
 549                 (setter)Channel_set_midi_change_callback,
 550                 "midi change callback", NULL},
 551         {"name",
 552                 (getter)Channel_get_name,
 553                 (setter)Channel_set_name,
 554                 "name", NULL},
 555         {"balance_midi_cc",
 556                 (getter)Channel_get_balance_midi_cc,
 557                 (setter)Channel_set_balance_midi_cc,
 558                 "Balance MIDI CC", NULL},
 559         {"volume_midi_cc",
 560                 (getter)Channel_get_volume_midi_cc,
 561                 (setter)Channel_set_volume_midi_cc,
 562                 "Volume MIDI CC", NULL},
 563         {"mute_midi_cc",
 564                 (getter)Channel_get_mute_midi_cc,
 565                 (setter)Channel_set_mute_midi_cc,
 566                 "Mute MIDI CC", NULL},
 567         {"solo_midi_cc",
 568                 (getter)Channel_get_solo_midi_cc,
 569                 (setter)Channel_set_solo_midi_cc,
 570                 "Mute MIDI CC", NULL},
 571         {"midi_in_got_events",
 572                 (getter)Channel_get_midi_in_got_events, NULL,
 573                 "Got new MIDI IN events", NULL},
 574         {NULL}
 575 };
 576
 577 static PyObject*
 578 Channel_remove(ChannelObject *self, PyObject *args)
 579 {
 580         if (! PyArg_ParseTuple(args, "")) return NULL;
 581         remove_channel(self->channel);
 582         Py_INCREF(Py_None);
 583         return Py_None;
 584 }
 585
 586 static PyObject*
 587 Channel_autoset_volume_midi_cc(ChannelObject *self, PyObject *args)
 588 {
 589         unsigned int result;
 590         if (! PyArg_ParseTuple(args, "")) return NULL;
 591
 592         result = channel_autoset_volume_midi_cc(self->channel);
 593
 594         if (result < 0) {
 595                 PyErr_SetString(PyExc_RuntimeError, "No free CC for channel volume.");
 596         }
 597
 598         return PyLong_FromLong(result);
 599 }
 600
 601 static PyObject*
 602 Channel_autoset_balance_midi_cc(ChannelObject *self, PyObject *args)
 603 {
 604         unsigned int result;
 605         if (! PyArg_ParseTuple(args, "")) return NULL;
 606
 607         result = channel_autoset_balance_midi_cc(self->channel);
 608
 609         if (result < 0) {
 610                 PyErr_SetString(PyExc_RuntimeError, "No free CC for channel balance.");
 611         }
 612
 613         return PyLong_FromLong(result);
 614 }
 615
 616 static PyObject*
 617 Channel_autoset_mute_midi_cc(ChannelObject *self, PyObject *args)
 618 {
 619         unsigned int result;
 620         if (! PyArg_ParseTuple(args, "")) return NULL;
 621
 622         result = channel_autoset_mute_midi_cc(self->channel);
 623
 624         if (result < 0) {
 625                 PyErr_SetString(PyExc_RuntimeError, "No free CC for channel mute.");
 626         }
 627
 628         return PyLong_FromLong(result);
 629 }
 630
 631 static PyObject*
 632 Channel_autoset_solo_midi_cc(ChannelObject *self, PyObject *args)
 633 {
 634         unsigned int result;
 635         if (! PyArg_ParseTuple(args, "")) return NULL;
 636
 637         result = channel_autoset_solo_midi_cc(self->channel);
 638
 639         if (result < 0) {
 640                 PyErr_SetString(PyExc_RuntimeError, "No free CC channel solo.");
 641         }
 642
 643         return PyLong_FromLong(result);
 644 }
 645
 646 static PyMethodDef channel_methods[] = {
 647         {"remove", (PyCFunction)Channel_remove, METH_VARARGS, "Remove"},
 648         {"autoset_volume_midi_cc",
 649                 (PyCFunction)Channel_autoset_volume_midi_cc, METH_VARARGS, "Autoset Volume MIDI CC"},
 650         {"autoset_balance_midi_cc",
 651                 (PyCFunction)Channel_autoset_balance_midi_cc, METH_VARARGS, "Autoset Balance MIDI CC"},
 652         {"autoset_mute_midi_cc",
 653                 (PyCFunction)Channel_autoset_mute_midi_cc, METH_VARARGS, "Autoset Mute MIDI CC"},
 654         {"autoset_solo_midi_cc",
 655                 (PyCFunction)Channel_autoset_solo_midi_cc, METH_VARARGS, "Autoset Solo MIDI CC"},
 656         {NULL}
 657 };
 658
 659 static PyTypeObject ChannelType = {
 660         PyVarObject_HEAD_INIT(NULL, 0)
 661         "jack_mixer_c.Channel",    /*tp_name*/
 662         sizeof(ChannelObject), /*tp_basicsize*/
 663         0,       /*tp_itemsize*/
 664         (destructor)Channel_dealloc,       /*tp_dealloc*/
 665         0,       /*tp_print*/
 666         0,       /*tp_getattr*/
 667         0,       /*tp_setattr*/
 668         0,       /*tp_compare*/
 669         0,       /*tp_repr*/
 670         0,       /*tp_as_number*/
 671         0,       /*tp_as_sequence*/
 672         0,       /*tp_as_mapping*/
 673         0,       /*tp_hash */
 674         0,       /*tp_call*/
 675         0,       /*tp_str*/
 676         0,       /*tp_getattro*/
 677         0,       /*tp_setattro*/
 678         0,       /*tp_as_buffer*/
 679         Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,  /*tp_flags*/
 680         "Channel objects",           /* tp_doc */
 681         0,                         /* tp_traverse */
 682         0,                         /* tp_clear */
 683         0,                         /* tp_richcompare */
 684         0,                         /* tp_weaklistoffset */
 685         0,                         /* tp_iter */
 686         0,                         /* tp_iternext */
 687         channel_methods,           /* tp_methods */
 688         0,             /* tp_members */
 689         Channel_getseters,           /* tp_getset */
 690         0,                         /* tp_base */
 691         0,                         /* tp_dict */
 692         0,                         /* tp_descr_get */
 693         0,                         /* tp_descr_set */
 694         0,                         /* tp_dictoffset */
 695         (initproc)Channel_init,    /* tp_init */
 696         0,                         /* tp_alloc */
 697         Channel_new,                 /* tp_new */
 698 };
 699
 700 static PyObject*
 701 Channel_New(jack_mixer_channel_t channel)
 702 {
 703         ChannelObject *self;
 704         self = (ChannelObject*)PyObject_NEW(ChannelObject, &ChannelType);
 705         if (self != NULL) {
 706                 self->channel = channel;
 707                 self->midi_change_callback = NULL;
 708         }
 709         return (PyObject*)self;
 710 }
 711
 712 /** Output Channel Type **/
 713
 714 typedef struct {
 715         PyObject_HEAD
 716         PyObject *midi_change_callback;
 717         jack_mixer_output_channel_t *output_channel;
 718 } OutputChannelObject;
 719
 720 static int
 721 OutputChannel_set_prefader(OutputChannelObject *self, PyObject *value, void *closure)
 722 {
 723         if (value == Py_True) {
 724                 output_channel_set_prefader(self->output_channel, true);
 725         } else {
 726                 output_channel_set_prefader(self->output_channel, false);
 727         }
 728         return 0;
 729 }
 730
 731 static PyObject*
 732 OutputChannel_get_prefader(OutputChannelObject *self, void *closure)
 733 {
 734         PyObject *result;
 735
 736         if (output_channel_is_prefader(self->output_channel)) {
 737                 result = Py_True;
 738         } else {
 739                 result = Py_False;
 740         }
 741         Py_INCREF(result);
 742         return result;
 743 }
 744
 745 static PyGetSetDef OutputChannel_getseters[] = {
 746         {"prefader",
 747                 (getter)OutputChannel_get_prefader, (setter)OutputChannel_set_prefader,
 748                 "prefader", NULL},
 749         {NULL}
 750 };
 751
 752 static PyObject*
 753 OutputChannel_remove(OutputChannelObject *self, PyObject *args)
 754 {
 755         if (! PyArg_ParseTuple(args, "")) return NULL;
 756         remove_output_channel(self->output_channel);
 757         Py_INCREF(Py_None);
 758         return Py_None;
 759 }
 760
 761 static PyObject*
 762 OutputChannel_set_solo(OutputChannelObject *self, PyObject *args)
 763 {
 764         PyObject *channel;
 765         unsigned char solo;
 766
 767         if (! PyArg_ParseTuple(args, "Ob", &channel, &solo)) return NULL;
 768
 769         output_channel_set_solo(self->output_channel,
 770                         ((ChannelObject*)channel)->channel,
 771                         solo);
 772
 773         Py_INCREF(Py_None);
 774         return Py_None;
 775 }
 776
 777 static PyObject*
 778 OutputChannel_set_muted(OutputChannelObject *self, PyObject *args)
 779 {
 780         PyObject *channel;
 781         unsigned char muted;
 782
 783         if (! PyArg_ParseTuple(args, "Ob", &channel, &muted)) return NULL;
 784
 785         output_channel_set_muted(self->output_channel,
 786                         ((ChannelObject*)channel)->channel,
 787                         muted);
 788
 789         Py_INCREF(Py_None);
 790         return Py_None;
 791 }
 792
 793 static PyObject*
 794 OutputChannel_is_solo(OutputChannelObject *self, PyObject *args)
 795 {
 796         PyObject *channel;
 797         PyObject *result;
 798
 799         if (! PyArg_ParseTuple(args, "O", &channel)) return NULL;
 800
 801         if (output_channel_is_solo(self->output_channel,
 802                         ((ChannelObject*)channel)->channel)) {
 803                 result = Py_True;
 804         } else {
 805                 result = Py_False;
 806         }
 807
 808         Py_INCREF(result);
 809         return result;
 810 }
 811
 812 static PyObject*
 813 OutputChannel_is_muted(OutputChannelObject *self, PyObject *args)
 814 {
 815         PyObject *channel;
 816         PyObject *result;
 817
 818         if (! PyArg_ParseTuple(args, "O", &channel)) return NULL;
 819
 820         if (output_channel_is_muted(self->output_channel,
 821                         ((ChannelObject*)channel)->channel)) {
 822                 result = Py_True;
 823         } else {
 824                 result = Py_False;
 825         }
 826
 827         Py_INCREF(result);
 828         return result;
 829 }
 830
 831 static PyObject*
 832 OutputChannel_set_in_prefader(OutputChannelObject *self, PyObject *args)
 833 {
 834         PyObject *channel;
 835         unsigned char prefader;
 836
 837         if (! PyArg_ParseTuple(args, "Ob", &channel, &prefader)) return NULL;
 838
 839         output_channel_set_in_prefader(self->output_channel,
 840                         ((ChannelObject*)channel)->channel,
 841                         prefader);
 842
 843         Py_INCREF(Py_None);
 844         return Py_None;
 845 }
 846
 847 static PyObject*
 848 OutputChannel_is_in_prefader(OutputChannelObject *self, PyObject *args)
 849 {
 850         PyObject *channel;
 851         PyObject *result;
 852
 853         if (! PyArg_ParseTuple(args, "O", &channel)) return NULL;
 854
 855         if (output_channel_is_in_prefader(self->output_channel,
 856                         ((ChannelObject*)channel)->channel)) {
 857                 result = Py_True;
 858         } else {
 859                 result = Py_False;
 860         }
 861
 862         Py_INCREF(result);
 863         return result;
 864 }
 865
 866 static PyMethodDef output_channel_methods[] = {
 867         {"remove", (PyCFunction)OutputChannel_remove, METH_VARARGS, "Remove"},
 868         {"set_solo", (PyCFunction)OutputChannel_set_solo, METH_VARARGS, "Set a channel as solo"},
 869         {"set_muted", (PyCFunction)OutputChannel_set_muted, METH_VARARGS, "Set a channel as muted"},
 870         {"is_solo", (PyCFunction)OutputChannel_is_solo, METH_VARARGS, "Is a channel set as solo"},
 871         {"is_muted", (PyCFunction)OutputChannel_is_muted, METH_VARARGS, "Is a channel set as muted"},
 872         {"set_in_prefader", (PyCFunction)OutputChannel_set_in_prefader, METH_VARARGS, "Set a channel as prefader"},
 873         {"is_in_prefader", (PyCFunction)OutputChannel_is_in_prefader, METH_VARARGS, "Is a channel set as prefader"},
 874         {NULL}
 875 };
 876
 877 static PyTypeObject OutputChannelType = {
 878         PyVarObject_HEAD_INIT(NULL, 0)
 879         "jack_mixer_c.OutputChannel",    /*tp_name*/
 880         sizeof(OutputChannelObject), /*tp_basicsize*/
 881         0,       /*tp_itemsize*/
 882         0,       /*tp_dealloc*/
 883         0,       /*tp_print*/
 884         0,       /*tp_getattr*/
 885         0,       /*tp_setattr*/
 886         0,       /*tp_compare*/
 887         0,       /*tp_repr*/
 888         0,       /*tp_as_number*/
 889         0,       /*tp_as_sequence*/
 890         0,       /*tp_as_mapping*/
 891         0,       /*tp_hash */
 892         0,       /*tp_call*/
 893         0,       /*tp_str*/
 894         0,       /*tp_getattro*/
 895         0,       /*tp_setattro*/
 896         0,       /*tp_as_buffer*/
 897         Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,  /*tp_flags*/
 898         "Output Channel objects",           /* tp_doc */
 899         0,                         /* tp_traverse */
 900         0,                         /* tp_clear */
 901         0,                         /* tp_richcompare */
 902         0,                         /* tp_weaklistoffset */
 903         0,                         /* tp_iter */
 904         0,                         /* tp_iternext */
 905         output_channel_methods,    /* tp_methods */
 906         0,             /* tp_members */
 907         OutputChannel_getseters,   /* tp_getset */
 908         &ChannelType,              /* tp_base */
 909         0,                         /* tp_dict */
 910         0,                         /* tp_descr_get */
 911         0,                         /* tp_descr_set */
 912         0,                         /* tp_dictoffset */
 913         0,                         /* tp_init */
 914         0,                         /* tp_alloc */
 915         0,                         /* tp_new */
 916 };
 917
 918 static PyObject*
 919 OutputChannel_New(jack_mixer_output_channel_t output_channel)
 920 {
 921         OutputChannelObject *self;
 922         self = (OutputChannelObject*)PyObject_NEW(OutputChannelObject, &OutputChannelType);
 923         if (self != NULL) {
 924                 self->midi_change_callback = NULL;
 925                 self->output_channel = output_channel;
 926         }
 927         return (PyObject*)self;
 928 }
 929
 930
 931 /** Mixer Type **/
 932
 933 typedef struct {
 934         PyObject_HEAD
 935         jack_mixer_t mixer;
 936 } MixerObject;
 937
 938 static void
 939 Mixer_dealloc(MixerObject *self)
 940 {
 941         if (self->mixer)
 942                 destroy(self->mixer);
 943         Py_TYPE(self)->tp_free((PyObject*)self);
 944 }
 945
 946 static PyObject*
 947 Mixer_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 948 {
 949         MixerObject *self;
 950
 951         self = (MixerObject*)type->tp_alloc(type, 0);
 952
 953         if (self != NULL) {
 954                 self->mixer = NULL;
 955         }
 956
 957         return (PyObject*)self;
 958 }
 959
 960 static int
 961 Mixer_init(MixerObject *self, PyObject *args, PyObject *kwds)
 962 {
 963         static char *kwlist[] = {"name", "stereo", NULL};
 964         char *name;
 965         int stereo = 1;
 966
 967         if (!PyArg_ParseTupleAndKeywords(args, kwds, "s|b", kwlist, &name, &stereo))
 968                 return -1;
 969
 970         self->mixer = create(name, (bool)stereo);
 971         if (self->mixer == NULL) {
 972                 PyErr_SetString(PyExc_RuntimeError,
 973                                 "error creating mixer, probably jack is not running");
 974                 return -1;
 975         }
 976
 977         return 0;
 978 }
 979
 980 static PyMemberDef Mixer_members[] = {
 981         {NULL}
 982 };
 983
 984 static PyObject*
 985 Mixer_get_channels_count(MixerObject *self, void *closure)
 986 {
 987         return PyLong_FromLong(get_channels_count(self->mixer));
 988 }
 989
 990 static PyObject*
 991 Mixer_get_client_name(MixerObject *self, void *closure)
 992 {
 993         return PyUnicode_FromString(get_client_name(self->mixer));
 994 }
 995
 996 static PyObject*
 997 Mixer_get_last_midi_channel(MixerObject *self, void *closure)
 998 {
 999         return PyLong_FromLong(get_last_midi_channel(self->mixer));
1000 }
1001
1002 static int
1003 Mixer_set_last_midi_channel(MixerObject *self, PyObject *value, void *closure)
1004 {
1005         int new_channel;
1006         unsigned int result;
1007
1008         new_channel = PyLong_AsLong(value);
1009         result = set_last_midi_channel(self->mixer, new_channel);
1010         if (result == 0) {
1011                 return 0;
1012         }
1013         return -1;
1014 }
1015
1016 static PyObject*
1017 Mixer_get_midi_behavior_mode(MixerObject *self, void *closure)
1018 {
1019         return PyLong_FromLong(get_midi_behavior_mode(self->mixer));
1020 }
1021
1022 static int
1023 Mixer_set_midi_behavior_mode(MixerObject *self, PyObject *value, void *closure)
1024 {
1025         int mode;
1026         unsigned int result;
1027
1028         mode = PyLong_AsLong(value);
1029         result = set_midi_behavior_mode(self->mixer, mode);
1030         if (result == 0) {
1031                 return 0;
1032         }
1033         return -1;
1034 }
1035
1036
1037
1038 static PyGetSetDef Mixer_getseters[] = {
1039         {"channels_count", (getter)Mixer_get_channels_count, NULL,
1040                 "channels count", NULL},
1041         {"last_midi_channel", (getter)Mixer_get_last_midi_channel, (setter)Mixer_set_last_midi_channel,
1042                 "last midi channel", NULL},
1043         {"midi_behavior_mode", (getter)Mixer_get_midi_behavior_mode, (setter)Mixer_set_midi_behavior_mode,
1044                 "midi behavior mode", NULL},
1045         {NULL}
1046 };
1047
1048 static PyObject*
1049 Mixer_add_channel(MixerObject *self, PyObject *args)
1050 {
1051         char *name;
1052         int stereo;
1053         jack_mixer_channel_t channel;
1054
1055         if (! PyArg_ParseTuple(args, "si", &name, &stereo)) return NULL;
1056
1057         channel = add_channel(self->mixer, name, (bool)stereo);
1058
1059         if (channel == NULL) {
1060                 PyErr_SetString(PyExc_RuntimeError, "error adding channel");
1061                 return NULL;
1062         }
1063
1064         return Channel_New(channel);
1065 }
1066
1067 static PyObject*
1068 Mixer_add_output_channel(MixerObject *self, PyObject *args)
1069 {
1070         char *name;
1071         int stereo = 1;
1072         int system = 0;
1073         jack_mixer_output_channel_t channel;
1074
1075         if (! PyArg_ParseTuple(args, "s|bb", &name, &stereo, &system)) return NULL;
1076
1077         channel = add_output_channel(self->mixer, name, (bool)stereo, (bool)system);
1078
1079         return OutputChannel_New(channel);
1080 }
1081
1082 static PyObject*
1083 Mixer_destroy(MixerObject *self, PyObject *args)
1084 {
1085         if (self->mixer) {
1086                 destroy(self->mixer);
1087                 self->mixer = NULL;
1088         }
1089         Py_INCREF(Py_None);
1090         return Py_None;
1091 }
1092
1093 static PyMethodDef Mixer_methods[] = {
1094         {"add_channel", (PyCFunction)Mixer_add_channel, METH_VARARGS, "Add a new channel"},
1095         {"add_output_channel", (PyCFunction)Mixer_add_output_channel, METH_VARARGS, "Add a new output channel"},
1096         {"destroy", (PyCFunction)Mixer_destroy, METH_VARARGS, "Destroy JACK Mixer"},
1097         {"client_name", (PyCFunction)Mixer_get_client_name, METH_VARARGS, "Get jack client name"},
1098 //      {"remove_channel", (PyCFunction)Mixer_remove_channel, METH_VARARGS, "Remove a channel"},
1099         {NULL}
1100 };
1101
1102 static PyTypeObject MixerType = {
1103         PyVarObject_HEAD_INIT(NULL, 0)
1104         "jack_mixer_c.Mixer",    /*tp_name*/
1105         sizeof(MixerObject), /*tp_basicsize*/
1106         0,       /*tp_itemsize*/
1107         (destructor)Mixer_dealloc,       /*tp_dealloc*/
1108         0,       /*tp_print*/
1109         0,       /*tp_getattr*/
1110         0,       /*tp_setattr*/
1111         0,       /*tp_compare*/
1112         0,       /*tp_repr*/
1113         0,       /*tp_as_number*/
1114         0,       /*tp_as_sequence*/
1115         0,       /*tp_as_mapping*/
1116         0,       /*tp_hash */
1117         0,       /*tp_call*/
1118         0,       /*tp_str*/
1119         0,       /*tp_getattro*/
1120         0,       /*tp_setattro*/
1121         0,       /*tp_as_buffer*/
1122         Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,  /*tp_flags*/
1123         "Mixer objects",           /* tp_doc */
1124         0,                         /* tp_traverse */
1125         0,                         /* tp_clear */
1126         0,                         /* tp_richcompare */
1127         0,                         /* tp_weaklistoffset */
1128         0,                         /* tp_iter */
1129         0,                         /* tp_iternext */
1130         Mixer_methods,             /* tp_methods */
1131         Mixer_members,             /* tp_members */
1132         Mixer_getseters,           /* tp_getset */
1133         0,                         /* tp_base */
1134         0,                         /* tp_dict */
1135         0,                         /* tp_descr_get */
1136         0,                         /* tp_descr_set */
1137         0,                         /* tp_dictoffset */
1138         (initproc)Mixer_init,      /* tp_init */
1139         0,                         /* tp_alloc */
1140         Mixer_new,                 /* tp_new */
1141 };
1142
1143
1144 static PyMethodDef jack_mixer_methods[] = {
1145         {NULL, NULL, 0, NULL}  /* Sentinel */
1146 };
1147
1148
1149 static struct PyModuleDef moduledef = {
1150         PyModuleDef_HEAD_INIT,
1151         "jack_mixer_c",                /* m_name */
1152         "Jack Mixer C Helper Module",  /* m_doc */
1153         -1,                            /* m_size */
1154         jack_mixer_methods,            /* m_methods */
1155         NULL,                          /* m_reload */
1156         NULL,                          /* m_traverse */
1157         NULL,                          /* m_clear */
1158         NULL,                          /* m_free */
1159 };
1160
1161 PyMODINIT_FUNC PyInit_jack_mixer_c(void)
1162 {
1163         PyObject *m;
1164
1165         if (PyType_Ready(&MixerType) < 0)
1166                 return NULL;
1167         if (PyType_Ready(&ChannelType) < 0)
1168                 return NULL;
1169         if (PyType_Ready(&OutputChannelType) < 0)
1170                 return NULL;
1171         if (PyType_Ready(&ScaleType) < 0)
1172                 return NULL;
1173
1174         m = PyModule_Create(&moduledef);
1175         //m = Py_InitModule3("jack_mixer_c", jack_mixer_methods, "module doc");
1176
1177         Py_INCREF(&MixerType);
1178         PyModule_AddObject(m, "Mixer", (PyObject*)&MixerType);
1179         Py_INCREF(&ChannelType);
1180         PyModule_AddObject(m, "Channel", (PyObject*)&ChannelType);
1181         Py_INCREF(&OutputChannelType);
1182         PyModule_AddObject(m, "OutputChannel", (PyObject*)&OutputChannelType);
1183         Py_INCREF(&ScaleType);
1184         PyModule_AddObject(m, "Scale", (PyObject*)&ScaleType);
1185
1186         return m;
1187 }
1188