| File: | jdk/src/java.desktop/linux/native/libjsound/PLATFORM_API_LinuxOS_ALSA_MidiUtils.c |
| Warning: | line 393, column 5 Value stored to 'err' is never read |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
| 1 | /* |
| 2 | * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Oracle designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Oracle in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 22 | * or visit www.oracle.com if you need additional information or have any |
| 23 | * questions. |
| 24 | */ |
| 25 | |
| 26 | #define USE_ERROR |
| 27 | #define USE_TRACE |
| 28 | |
| 29 | #include "PLATFORM_API_LinuxOS_ALSA_MidiUtils.h" |
| 30 | #include "PLATFORM_API_LinuxOS_ALSA_CommonUtils.h" |
| 31 | #include <string.h> |
| 32 | #include <sys/time.h> |
| 33 | |
| 34 | static INT64 getTimeInMicroseconds() { |
| 35 | struct timeval tv; |
| 36 | |
| 37 | gettimeofday(&tv, NULL0L); |
| 38 | return (tv.tv_sec * 1000000UL) + tv.tv_usec; |
| 39 | } |
| 40 | |
| 41 | |
| 42 | const char* getErrorStr(INT32 err) { |
| 43 | return snd_strerror((int) err); |
| 44 | } |
| 45 | |
| 46 | |
| 47 | |
| 48 | // callback for iteration through devices |
| 49 | // returns TRUE if iteration should continue |
| 50 | typedef int (*DeviceIteratorPtr)(UINT32 deviceID, |
| 51 | snd_rawmidi_info_t* rawmidi_info, |
| 52 | snd_ctl_card_info_t* cardinfo, |
| 53 | void *userData); |
| 54 | |
| 55 | // for each ALSA device, call iterator. userData is passed to the iterator |
| 56 | // returns total number of iterations |
| 57 | static int iterateRawmidiDevices(snd_rawmidi_stream_t direction, |
| 58 | DeviceIteratorPtr iterator, |
| 59 | void* userData) { |
| 60 | int count = 0; |
| 61 | int subdeviceCount; |
| 62 | int card, dev, subDev; |
| 63 | char devname[16]; |
| 64 | int err; |
| 65 | snd_ctl_t *handle; |
| 66 | snd_rawmidi_t *rawmidi; |
| 67 | snd_rawmidi_info_t *rawmidi_info; |
| 68 | snd_ctl_card_info_t *card_info, *defcardinfo = NULL0L; |
| 69 | UINT32 deviceID; |
| 70 | int doContinue = TRUE1; |
| 71 | |
| 72 | snd_rawmidi_info_malloc(&rawmidi_info); |
| 73 | snd_ctl_card_info_malloc(&card_info); |
| 74 | |
| 75 | // 1st try "default" device |
| 76 | if (direction == SND_RAWMIDI_STREAM_INPUT) { |
| 77 | err = snd_rawmidi_open(&rawmidi, NULL0L, ALSA_DEFAULT_DEVICE_NAME"default", |
| 78 | SND_RAWMIDI_NONBLOCK0x0002); |
| 79 | } else if (direction == SND_RAWMIDI_STREAM_OUTPUT) { |
| 80 | err = snd_rawmidi_open(NULL0L, &rawmidi, ALSA_DEFAULT_DEVICE_NAME"default", |
| 81 | SND_RAWMIDI_NONBLOCK0x0002); |
| 82 | } else { |
| 83 | ERROR0("ERROR: iterateRawmidiDevices(): direction is neither" |
| 84 | " SND_RAWMIDI_STREAM_INPUT nor SND_RAWMIDI_STREAM_OUTPUT\n"); |
| 85 | err = MIDI_INVALID_ARGUMENT-11114; |
| 86 | } |
| 87 | if (err < 0) { |
| 88 | ERROR1("ERROR: snd_rawmidi_open (\"default\"): %s\n", |
| 89 | snd_strerror(err)); |
| 90 | } else { |
| 91 | err = snd_rawmidi_info(rawmidi, rawmidi_info); |
| 92 | |
| 93 | snd_rawmidi_close(rawmidi); |
| 94 | if (err < 0) { |
| 95 | ERROR1("ERROR: snd_rawmidi_info (\"default\"): %s\n", |
| 96 | snd_strerror(err)); |
| 97 | } else { |
| 98 | // try to get card info |
| 99 | card = snd_rawmidi_info_get_card(rawmidi_info); |
| 100 | if (card >= 0) { |
| 101 | sprintf(devname, ALSA_HARDWARE_CARD, card)__builtin___sprintf_chk (devname, 2 - 1, __builtin_object_size (devname, 2 > 1), "hw"":%d", card); |
| 102 | if (snd_ctl_open(&handle, devname, SND_CTL_NONBLOCK0x0001) >= 0) { |
| 103 | if (snd_ctl_card_info(handle, card_info) >= 0) { |
| 104 | defcardinfo = card_info; |
| 105 | } |
| 106 | snd_ctl_close(handle); |
| 107 | } |
| 108 | } |
| 109 | // call calback function for the device |
| 110 | if (iterator != NULL0L) { |
| 111 | doContinue = (*iterator)(ALSA_DEFAULT_DEVICE_ID(0), rawmidi_info, |
| 112 | defcardinfo, userData); |
| 113 | } |
| 114 | count++; |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | // iterate cards |
| 119 | card = -1; |
| 120 | TRACE0("testing for cards...\n"); |
| 121 | if (snd_card_next(&card) >= 0) { |
| 122 | TRACE1("Found card %d\n", card); |
| 123 | while (doContinue && (card >= 0)) { |
| 124 | sprintf(devname, ALSA_HARDWARE_CARD, card)__builtin___sprintf_chk (devname, 2 - 1, __builtin_object_size (devname, 2 > 1), "hw"":%d", card); |
| 125 | TRACE1("Opening control for alsa rawmidi device \"%s\"...\n", devname); |
| 126 | err = snd_ctl_open(&handle, devname, SND_CTL_NONBLOCK0x0001); |
| 127 | if (err < 0) { |
| 128 | ERROR2("ERROR: snd_ctl_open, card=%d: %s\n", card, snd_strerror(err)); |
| 129 | } else { |
| 130 | TRACE0("snd_ctl_open() SUCCESS\n"); |
| 131 | err = snd_ctl_card_info(handle, card_info); |
| 132 | if (err < 0) { |
| 133 | ERROR2("ERROR: snd_ctl_card_info, card=%d: %s\n", card, snd_strerror(err)); |
| 134 | } else { |
| 135 | TRACE0("snd_ctl_card_info() SUCCESS\n"); |
| 136 | dev = -1; |
| 137 | while (doContinue) { |
| 138 | if (snd_ctl_rawmidi_next_device(handle, &dev) < 0) { |
| 139 | ERROR0("snd_ctl_rawmidi_next_device\n"); |
| 140 | } |
| 141 | TRACE0("snd_ctl_rawmidi_next_device() SUCCESS\n"); |
| 142 | if (dev < 0) { |
| 143 | break; |
| 144 | } |
| 145 | snd_rawmidi_info_set_device(rawmidi_info, dev); |
| 146 | snd_rawmidi_info_set_subdevice(rawmidi_info, 0); |
| 147 | snd_rawmidi_info_set_stream(rawmidi_info, direction); |
| 148 | err = snd_ctl_rawmidi_info(handle, rawmidi_info); |
| 149 | TRACE0("after snd_ctl_rawmidi_info()\n"); |
| 150 | if (err < 0) { |
| 151 | if (err != -ENOENT2) { |
| 152 | ERROR2("ERROR: snd_ctl_rawmidi_info, card=%d: %s", card, snd_strerror(err)); |
| 153 | } |
| 154 | } else { |
| 155 | TRACE0("snd_ctl_rawmidi_info() SUCCESS\n"); |
| 156 | subdeviceCount = needEnumerateSubdevices(ALSA_RAWMIDI(1)) |
| 157 | ? snd_rawmidi_info_get_subdevices_count(rawmidi_info) |
| 158 | : 1; |
| 159 | if (iterator!=NULL0L) { |
| 160 | for (subDev = 0; subDev < subdeviceCount; subDev++) { |
| 161 | TRACE3(" Iterating %d,%d,%d\n", card, dev, subDev); |
| 162 | deviceID = encodeDeviceID(card, dev, subDev); |
| 163 | doContinue = (*iterator)(deviceID, rawmidi_info, |
| 164 | card_info, userData); |
| 165 | count++; |
| 166 | TRACE0("returned from iterator\n"); |
| 167 | if (!doContinue) { |
| 168 | break; |
| 169 | } |
| 170 | } |
| 171 | } else { |
| 172 | count += subdeviceCount; |
| 173 | } |
| 174 | } |
| 175 | } // of while(doContinue) |
| 176 | } |
| 177 | snd_ctl_close(handle); |
| 178 | } |
| 179 | if (snd_card_next(&card) < 0) { |
| 180 | break; |
| 181 | } |
| 182 | } |
| 183 | } else { |
| 184 | ERROR0("No cards found!\n"); |
| 185 | } |
| 186 | snd_ctl_card_info_free(card_info); |
| 187 | snd_rawmidi_info_free(rawmidi_info); |
| 188 | return count; |
| 189 | } |
| 190 | |
| 191 | |
| 192 | |
| 193 | int getMidiDeviceCount(snd_rawmidi_stream_t direction) { |
| 194 | int deviceCount; |
| 195 | TRACE0("> getMidiDeviceCount()\n"); |
| 196 | initAlsaSupport(); |
| 197 | deviceCount = iterateRawmidiDevices(direction, NULL0L, NULL0L); |
| 198 | TRACE0("< getMidiDeviceCount()\n"); |
| 199 | return deviceCount; |
| 200 | } |
| 201 | |
| 202 | |
| 203 | |
| 204 | /* |
| 205 | userData is assumed to be a pointer to ALSA_MIDIDeviceDescription. |
| 206 | ALSA_MIDIDeviceDescription->index has to be set to the index of the device |
| 207 | we want to get information of before this method is called the first time via |
| 208 | iterateRawmidiDevices(). On each call of this method, |
| 209 | ALSA_MIDIDeviceDescription->index is decremented. If it is equal to zero, |
| 210 | we have reached the desired device, so action is taken. |
| 211 | So after successful completion of iterateRawmidiDevices(), |
| 212 | ALSA_MIDIDeviceDescription->index is zero. If it isn't, this is an |
| 213 | indication of an error. |
| 214 | */ |
| 215 | static int deviceInfoIterator(UINT32 deviceID, snd_rawmidi_info_t *rawmidi_info, |
| 216 | snd_ctl_card_info_t *cardinfo, void *userData) { |
| 217 | char buffer[300]; |
| 218 | ALSA_MIDIDeviceDescription* desc = (ALSA_MIDIDeviceDescription*)userData; |
| 219 | #ifdef ALSA_MIDI_USE_PLUGHW |
| 220 | int usePlugHw = 1; |
| 221 | #else |
| 222 | int usePlugHw = 0; |
| 223 | #endif |
| 224 | |
| 225 | TRACE0("deviceInfoIterator\n"); |
| 226 | initAlsaSupport(); |
| 227 | if (desc->index == 0) { |
| 228 | // we found the device with correct index |
| 229 | desc->deviceID = deviceID; |
| 230 | |
| 231 | buffer[0]=' '; buffer[1]='['; |
| 232 | // buffer[300] is enough to store the actual device string w/o overrun |
| 233 | getDeviceStringFromDeviceID(&buffer[2], deviceID, usePlugHw, ALSA_RAWMIDI(1)); |
| 234 | strncat(buffer, "]", sizeof(buffer) - strlen(buffer) - 1); |
| 235 | strncpy(desc->name, |
| 236 | (cardinfo != NULL0L) |
| 237 | ? snd_ctl_card_info_get_id(cardinfo) |
| 238 | : snd_rawmidi_info_get_id(rawmidi_info), |
| 239 | desc->strLen - strlen(buffer)); |
| 240 | strncat(desc->name, buffer, desc->strLen - strlen(desc->name)); |
| 241 | desc->description[0] = 0; |
| 242 | if (cardinfo != NULL0L) { |
| 243 | strncpy(desc->description, snd_ctl_card_info_get_name(cardinfo), |
| 244 | desc->strLen); |
| 245 | strncat(desc->description, ", ", |
| 246 | desc->strLen - strlen(desc->description)); |
| 247 | } |
| 248 | strncat(desc->description, snd_rawmidi_info_get_id(rawmidi_info), |
| 249 | desc->strLen - strlen(desc->description)); |
| 250 | strncat(desc->description, ", ", desc->strLen - strlen(desc->description)); |
| 251 | strncat(desc->description, snd_rawmidi_info_get_name(rawmidi_info), |
| 252 | desc->strLen - strlen(desc->description)); |
| 253 | TRACE2("Returning %s, %s\n", desc->name, desc->description); |
| 254 | return FALSE0; // do not continue iteration |
| 255 | } |
| 256 | desc->index--; |
| 257 | return TRUE1; |
| 258 | } |
| 259 | |
| 260 | |
| 261 | static int getMIDIDeviceDescriptionByIndex(snd_rawmidi_stream_t direction, |
| 262 | ALSA_MIDIDeviceDescription* desc) { |
| 263 | initAlsaSupport(); |
| 264 | TRACE1(" getMIDIDeviceDescriptionByIndex (index = %d)\n", desc->index); |
| 265 | iterateRawmidiDevices(direction, &deviceInfoIterator, desc); |
| 266 | return (desc->index == 0) ? MIDI_SUCCESS0 : MIDI_INVALID_DEVICEID-11112; |
| 267 | } |
| 268 | |
| 269 | |
| 270 | |
| 271 | int initMIDIDeviceDescription(ALSA_MIDIDeviceDescription* desc, int index) { |
| 272 | int ret = MIDI_SUCCESS0; |
| 273 | desc->index = index; |
| 274 | desc->strLen = 200; |
| 275 | desc->name = (char*) calloc(desc->strLen + 1, 1); |
| 276 | desc->description = (char*) calloc(desc->strLen + 1, 1); |
| 277 | if (! desc->name || |
| 278 | ! desc->description) { |
| 279 | ret = MIDI_OUT_OF_MEMORY-11115; |
| 280 | } |
| 281 | return ret; |
| 282 | } |
| 283 | |
| 284 | |
| 285 | void freeMIDIDeviceDescription(ALSA_MIDIDeviceDescription* desc) { |
| 286 | if (desc->name) { |
| 287 | free(desc->name); |
| 288 | } |
| 289 | if (desc->description) { |
| 290 | free(desc->description); |
| 291 | } |
| 292 | } |
| 293 | |
| 294 | |
| 295 | int getMidiDeviceName(snd_rawmidi_stream_t direction, int index, char *name, |
| 296 | UINT32 nameLength) { |
| 297 | ALSA_MIDIDeviceDescription desc; |
| 298 | int ret; |
| 299 | |
| 300 | TRACE1("getMidiDeviceName: nameLength: %d\n", (int) nameLength); |
| 301 | ret = initMIDIDeviceDescription(&desc, index); |
| 302 | if (ret == MIDI_SUCCESS0) { |
| 303 | TRACE0("getMidiDeviceName: initMIDIDeviceDescription() SUCCESS\n"); |
| 304 | ret = getMIDIDeviceDescriptionByIndex(direction, &desc); |
| 305 | if (ret == MIDI_SUCCESS0) { |
| 306 | TRACE1("getMidiDeviceName: desc.name: %s\n", desc.name); |
| 307 | strncpy(name, desc.name, nameLength - 1); |
| 308 | name[nameLength - 1] = 0; |
| 309 | } |
| 310 | } |
| 311 | freeMIDIDeviceDescription(&desc); |
| 312 | return ret; |
| 313 | } |
| 314 | |
| 315 | |
| 316 | int getMidiDeviceVendor(int index, char *name, UINT32 nameLength) { |
| 317 | strncpy(name, ALSA_VENDOR"ALSA (http://www.alsa-project.org)", nameLength - 1); |
| 318 | name[nameLength - 1] = 0; |
| 319 | return MIDI_SUCCESS0; |
| 320 | } |
| 321 | |
| 322 | |
| 323 | int getMidiDeviceDescription(snd_rawmidi_stream_t direction, |
| 324 | int index, char *name, UINT32 nameLength) { |
| 325 | ALSA_MIDIDeviceDescription desc; |
| 326 | int ret; |
| 327 | |
| 328 | ret = initMIDIDeviceDescription(&desc, index); |
| 329 | if (ret == MIDI_SUCCESS0) { |
| 330 | ret = getMIDIDeviceDescriptionByIndex(direction, &desc); |
| 331 | if (ret == MIDI_SUCCESS0) { |
| 332 | strncpy(name, desc.description, nameLength - 1); |
| 333 | name[nameLength - 1] = 0; |
| 334 | } |
| 335 | } |
| 336 | freeMIDIDeviceDescription(&desc); |
| 337 | return ret; |
| 338 | } |
| 339 | |
| 340 | |
| 341 | int getMidiDeviceVersion(int index, char *name, UINT32 nameLength) { |
| 342 | getALSAVersion(name, nameLength); |
| 343 | return MIDI_SUCCESS0; |
| 344 | } |
| 345 | |
| 346 | |
| 347 | static int getMidiDeviceID(snd_rawmidi_stream_t direction, int index, |
| 348 | UINT32* deviceID) { |
| 349 | ALSA_MIDIDeviceDescription desc; |
| 350 | int ret; |
| 351 | |
| 352 | ret = initMIDIDeviceDescription(&desc, index); |
| 353 | if (ret == MIDI_SUCCESS0) { |
| 354 | ret = getMIDIDeviceDescriptionByIndex(direction, &desc); |
| 355 | if (ret == MIDI_SUCCESS0) { |
| 356 | // TRACE1("getMidiDeviceName: desc.name: %s\n", desc.name); |
| 357 | *deviceID = desc.deviceID; |
| 358 | } |
| 359 | } |
| 360 | freeMIDIDeviceDescription(&desc); |
| 361 | return ret; |
| 362 | } |
| 363 | |
| 364 | |
| 365 | /* |
| 366 | direction has to be either SND_RAWMIDI_STREAM_INPUT or |
| 367 | SND_RAWMIDI_STREAM_OUTPUT. |
| 368 | Returns 0 on success. Otherwise, MIDI_OUT_OF_MEMORY, MIDI_INVALID_ARGUMENT |
| 369 | or a negative ALSA error code is returned. |
| 370 | */ |
| 371 | INT32 openMidiDevice(snd_rawmidi_stream_t direction, INT32 deviceIndex, |
| 372 | MidiDeviceHandle** handle) { |
| 373 | snd_rawmidi_t* native_handle; |
| 374 | snd_midi_event_t* event_parser = NULL0L; |
| 375 | int err; |
| 376 | UINT32 deviceID = 0; |
| 377 | char devicename[100]; |
| 378 | #ifdef ALSA_MIDI_USE_PLUGHW |
| 379 | int usePlugHw = 1; |
| 380 | #else |
| 381 | int usePlugHw = 0; |
| 382 | #endif |
| 383 | |
| 384 | TRACE0("> openMidiDevice()\n"); |
| 385 | |
| 386 | (*handle) = (MidiDeviceHandle*) calloc(sizeof(MidiDeviceHandle), 1); |
| 387 | if (!(*handle)) { |
| 388 | ERROR0("ERROR: openDevice: out of memory\n"); |
| 389 | return MIDI_OUT_OF_MEMORY-11115; |
| 390 | } |
| 391 | |
| 392 | // TODO: iterate to get dev ID from index |
| 393 | err = getMidiDeviceID(direction, deviceIndex, &deviceID); |
Value stored to 'err' is never read | |
| 394 | TRACE1(" openMidiDevice(): deviceID: %d\n", (int) deviceID); |
| 395 | getDeviceStringFromDeviceID(devicename, deviceID, |
| 396 | usePlugHw, ALSA_RAWMIDI(1)); |
| 397 | TRACE1(" openMidiDevice(): deviceString: %s\n", devicename); |
| 398 | |
| 399 | // finally open the device |
| 400 | if (direction == SND_RAWMIDI_STREAM_INPUT) { |
| 401 | err = snd_rawmidi_open(&native_handle, NULL0L, devicename, |
| 402 | SND_RAWMIDI_NONBLOCK0x0002); |
| 403 | } else if (direction == SND_RAWMIDI_STREAM_OUTPUT) { |
| 404 | err = snd_rawmidi_open(NULL0L, &native_handle, devicename, |
| 405 | SND_RAWMIDI_NONBLOCK0x0002); |
| 406 | } else { |
| 407 | ERROR0(" ERROR: openMidiDevice(): direction is neither SND_RAWMIDI_STREAM_INPUT nor SND_RAWMIDI_STREAM_OUTPUT\n"); |
| 408 | err = MIDI_INVALID_ARGUMENT-11114; |
| 409 | } |
| 410 | if (err < 0) { |
| 411 | ERROR1("< ERROR: openMidiDevice(): snd_rawmidi_open() returned %d\n", err); |
| 412 | free(*handle); |
| 413 | (*handle) = NULL0L; |
| 414 | return err; |
| 415 | } |
| 416 | /* We opened with non-blocking behaviour to not get hung if the device |
| 417 | is used by a different process. Writing, however, should |
| 418 | be blocking. So we change it here. */ |
| 419 | if (direction == SND_RAWMIDI_STREAM_OUTPUT) { |
| 420 | err = snd_rawmidi_nonblock(native_handle, 0); |
| 421 | if (err < 0) { |
| 422 | ERROR1(" ERROR: openMidiDevice(): snd_rawmidi_nonblock() returned %d\n", err); |
| 423 | snd_rawmidi_close(native_handle); |
| 424 | free(*handle); |
| 425 | (*handle) = NULL0L; |
| 426 | return err; |
| 427 | } |
| 428 | } |
| 429 | if (direction == SND_RAWMIDI_STREAM_INPUT) { |
| 430 | err = snd_midi_event_new(EVENT_PARSER_BUFSIZE(2048), &event_parser); |
| 431 | if (err < 0) { |
| 432 | ERROR1(" ERROR: openMidiDevice(): snd_midi_event_new() returned %d\n", err); |
| 433 | snd_rawmidi_close(native_handle); |
| 434 | free(*handle); |
| 435 | (*handle) = NULL0L; |
| 436 | return err; |
| 437 | } |
| 438 | } |
| 439 | |
| 440 | (*handle)->deviceHandle = (void*) native_handle; |
| 441 | (*handle)->startTime = getTimeInMicroseconds(); |
| 442 | (*handle)->platformData = event_parser; |
| 443 | TRACE0("< openMidiDevice(): succeeded\n"); |
| 444 | return err; |
| 445 | } |
| 446 | |
| 447 | |
| 448 | |
| 449 | INT32 closeMidiDevice(MidiDeviceHandle* handle) { |
| 450 | int err; |
| 451 | |
| 452 | TRACE0("> closeMidiDevice()\n"); |
| 453 | if (!handle) { |
| 454 | ERROR0("< ERROR: closeMidiDevice(): handle is NULL\n"); |
| 455 | return MIDI_INVALID_HANDLE-11113; |
| 456 | } |
| 457 | if (!handle->deviceHandle) { |
| 458 | ERROR0("< ERROR: closeMidiDevice(): native handle is NULL\n"); |
| 459 | return MIDI_INVALID_HANDLE-11113; |
| 460 | } |
| 461 | err = snd_rawmidi_close((snd_rawmidi_t*) handle->deviceHandle); |
| 462 | TRACE1(" snd_rawmidi_close() returns %d\n", err); |
| 463 | if (handle->platformData) { |
| 464 | snd_midi_event_free((snd_midi_event_t*) handle->platformData); |
| 465 | } |
| 466 | free(handle); |
| 467 | TRACE0("< closeMidiDevice: succeeded\n"); |
| 468 | return err; |
| 469 | } |
| 470 | |
| 471 | |
| 472 | INT64 getMidiTimestamp(MidiDeviceHandle* handle) { |
| 473 | if (!handle) { |
| 474 | ERROR0("< ERROR: closeMidiDevice(): handle is NULL\n"); |
| 475 | return MIDI_INVALID_HANDLE-11113; |
| 476 | } |
| 477 | return getTimeInMicroseconds() - handle->startTime; |
| 478 | } |
| 479 | |
| 480 | |
| 481 | /* end */ |