annotate data/midi/rtmidi/RtMidi.cpp @ 832:a1bb2989013d

Merge
author Chris Cannam <chris.cannam@eecs.qmul.ac.uk>
date Wed, 24 Jul 2013 18:24:55 +0100
parents 1424aa29ae95
children e802e550a1f2
rev   line source
Chris@559 1 /**********************************************************************/
Chris@559 2 /*! \class RtMidi
Chris@559 3 \brief An abstract base class for realtime MIDI input/output.
Chris@559 4
Chris@559 5 This class implements some common functionality for the realtime
Chris@559 6 MIDI input/output subclasses RtMidiIn and RtMidiOut.
Chris@559 7
Chris@559 8 RtMidi WWW site: http://music.mcgill.ca/~gary/rtmidi/
Chris@559 9
Chris@559 10 RtMidi: realtime MIDI i/o C++ classes
Chris@565 11 Copyright (c) 2003-2009 Gary P. Scavone
Chris@559 12
Chris@559 13 Permission is hereby granted, free of charge, to any person
Chris@559 14 obtaining a copy of this software and associated documentation files
Chris@559 15 (the "Software"), to deal in the Software without restriction,
Chris@559 16 including without limitation the rights to use, copy, modify, merge,
Chris@559 17 publish, distribute, sublicense, and/or sell copies of the Software,
Chris@559 18 and to permit persons to whom the Software is furnished to do so,
Chris@559 19 subject to the following conditions:
Chris@559 20
Chris@559 21 The above copyright notice and this permission notice shall be
Chris@559 22 included in all copies or substantial portions of the Software.
Chris@559 23
Chris@559 24 Any person wishing to distribute modifications to the Software is
Chris@559 25 requested to send the modifications to the original developer so that
Chris@559 26 they can be incorporated into the canonical version.
Chris@559 27
Chris@559 28 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
Chris@559 29 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Chris@559 30 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
Chris@559 31 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
Chris@559 32 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
Chris@559 33 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
Chris@559 34 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Chris@559 35 */
Chris@559 36 /**********************************************************************/
Chris@559 37
Chris@565 38 // RtMidi: Version 1.0.8
Chris@559 39
Chris@559 40 #include "RtMidi.h"
Chris@559 41 #include <sstream>
Chris@559 42
Chris@559 43 //*********************************************************************//
Chris@559 44 // Common RtMidi Definitions
Chris@559 45 //*********************************************************************//
Chris@559 46
Chris@559 47 RtMidi :: RtMidi()
Chris@559 48 : apiData_( 0 ), connected_( false )
Chris@559 49 {
Chris@559 50 }
Chris@559 51
Chris@559 52 void RtMidi :: error( RtError::Type type )
Chris@559 53 {
Chris@559 54 if (type == RtError::WARNING) {
Chris@559 55 std::cerr << '\n' << errorString_ << "\n\n";
Chris@559 56 }
Chris@559 57 else if (type == RtError::DEBUG_WARNING) {
Chris@559 58 #if defined(__RTMIDI_DEBUG__)
Chris@559 59 std::cerr << '\n' << errorString_ << "\n\n";
Chris@559 60 #endif
Chris@559 61 }
Chris@559 62 else {
Chris@559 63 std::cerr << '\n' << errorString_ << "\n\n";
Chris@559 64 throw RtError( errorString_, type );
Chris@559 65 }
Chris@559 66 }
Chris@559 67
Chris@559 68 //*********************************************************************//
Chris@559 69 // Common RtMidiIn Definitions
Chris@559 70 //*********************************************************************//
Chris@559 71
Chris@565 72 RtMidiIn :: RtMidiIn( const std::string clientName ) : RtMidi()
Chris@559 73 {
Chris@565 74 this->initialize( clientName );
Chris@559 75 }
Chris@559 76
Chris@559 77 void RtMidiIn :: setCallback( RtMidiCallback callback, void *userData )
Chris@559 78 {
Chris@559 79 if ( inputData_.usingCallback ) {
Chris@559 80 errorString_ = "RtMidiIn::setCallback: a callback function is already set!";
Chris@559 81 error( RtError::WARNING );
Chris@559 82 return;
Chris@559 83 }
Chris@559 84
Chris@559 85 if ( !callback ) {
Chris@559 86 errorString_ = "RtMidiIn::setCallback: callback function value is invalid!";
Chris@559 87 error( RtError::WARNING );
Chris@559 88 return;
Chris@559 89 }
Chris@559 90
Chris@559 91 inputData_.userCallback = (void *) callback;
Chris@559 92 inputData_.userData = userData;
Chris@559 93 inputData_.usingCallback = true;
Chris@559 94 }
Chris@559 95
Chris@559 96 void RtMidiIn :: cancelCallback()
Chris@559 97 {
Chris@559 98 if ( !inputData_.usingCallback ) {
Chris@559 99 errorString_ = "RtMidiIn::cancelCallback: no callback function was set!";
Chris@559 100 error( RtError::WARNING );
Chris@559 101 return;
Chris@559 102 }
Chris@559 103
Chris@559 104 inputData_.userCallback = 0;
Chris@559 105 inputData_.userData = 0;
Chris@559 106 inputData_.usingCallback = false;
Chris@559 107 }
Chris@559 108
Chris@559 109 void RtMidiIn :: setQueueSizeLimit( unsigned int queueSize )
Chris@559 110 {
Chris@559 111 inputData_.queueLimit = queueSize;
Chris@559 112 }
Chris@559 113
Chris@559 114 void RtMidiIn :: ignoreTypes( bool midiSysex, bool midiTime, bool midiSense )
Chris@559 115 {
Chris@559 116 inputData_.ignoreFlags = 0;
Chris@559 117 if ( midiSysex ) inputData_.ignoreFlags = 0x01;
Chris@559 118 if ( midiTime ) inputData_.ignoreFlags |= 0x02;
Chris@559 119 if ( midiSense ) inputData_.ignoreFlags |= 0x04;
Chris@559 120 }
Chris@559 121
Chris@559 122 double RtMidiIn :: getMessage( std::vector<unsigned char> *message )
Chris@559 123 {
Chris@559 124 message->clear();
Chris@559 125
Chris@559 126 if ( inputData_.usingCallback ) {
Chris@559 127 errorString_ = "RtMidiIn::getNextMessage: a user callback is currently set for this port.";
Chris@559 128 error( RtError::WARNING );
Chris@559 129 return 0.0;
Chris@559 130 }
Chris@559 131
Chris@559 132 if ( inputData_.queue.size() == 0 ) return 0.0;
Chris@559 133
Chris@559 134 // Copy queued message to the vector pointer argument and then "pop" it.
Chris@559 135 std::vector<unsigned char> *bytes = &(inputData_.queue.front().bytes);
Chris@559 136 message->assign( bytes->begin(), bytes->end() );
Chris@559 137 double deltaTime = inputData_.queue.front().timeStamp;
Chris@559 138 inputData_.queue.pop();
Chris@559 139
Chris@559 140 return deltaTime;
Chris@559 141 }
Chris@559 142
Chris@559 143 //*********************************************************************//
Chris@559 144 // Common RtMidiOut Definitions
Chris@559 145 //*********************************************************************//
Chris@559 146
Chris@565 147 RtMidiOut :: RtMidiOut( const std::string clientName ) : RtMidi()
Chris@559 148 {
Chris@565 149 this->initialize( clientName );
Chris@559 150 }
Chris@559 151
Chris@559 152
Chris@559 153 //*********************************************************************//
Chris@559 154 // API: Macintosh OS-X
Chris@559 155 //*********************************************************************//
Chris@559 156
Chris@559 157 // API information found at:
Chris@559 158 // - http://developer. apple .com/audio/pdf/coreaudio.pdf
Chris@559 159
Chris@559 160 #if defined(__MACOSX_CORE__)
Chris@559 161
Chris@559 162 // The CoreMIDI API is based on the use of a callback function for
Chris@559 163 // MIDI input. We convert the system specific time stamps to delta
Chris@559 164 // time values.
Chris@559 165
Chris@559 166 // OS-X CoreMIDI header files.
Chris@559 167 #include <CoreMIDI/CoreMIDI.h>
Chris@559 168 #include <CoreAudio/HostTime.h>
Chris@559 169
Chris@559 170 // A structure to hold variables related to the CoreMIDI API
Chris@559 171 // implementation.
Chris@559 172 struct CoreMidiData {
Chris@559 173 MIDIClientRef client;
Chris@559 174 MIDIPortRef port;
Chris@559 175 MIDIEndpointRef endpoint;
Chris@559 176 MIDIEndpointRef destinationId;
Chris@559 177 unsigned long long lastTime;
Chris@559 178 };
Chris@559 179
Chris@559 180 //*********************************************************************//
Chris@559 181 // API: OS-X
Chris@559 182 // Class Definitions: RtMidiIn
Chris@559 183 //*********************************************************************//
Chris@559 184
Chris@559 185 void midiInputCallback( const MIDIPacketList *list, void *procRef, void *srcRef )
Chris@559 186 {
Chris@559 187 RtMidiIn::RtMidiInData *data = static_cast<RtMidiIn::RtMidiInData *> (procRef);
Chris@559 188 CoreMidiData *apiData = static_cast<CoreMidiData *> (data->apiData);
Chris@559 189
Chris@559 190 unsigned char status;
Chris@559 191 unsigned short nBytes, iByte, size;
Chris@559 192 unsigned long long time;
Chris@565 193
Chris@565 194 bool& continueSysex = data->continueSysex;
Chris@565 195 RtMidiIn::MidiMessage& message = data->message;
Chris@565 196
Chris@559 197 const MIDIPacket *packet = &list->packet[0];
Chris@559 198 for ( unsigned int i=0; i<list->numPackets; ++i ) {
Chris@559 199
Chris@559 200 // My interpretation of the CoreMIDI documentation: all message
Chris@559 201 // types, except sysex, are complete within a packet and there may
Chris@559 202 // be several of them in a single packet. Sysex messages can be
Chris@565 203 // broken across multiple packets and PacketLists but are bundled
Chris@565 204 // alone within each packet (these packets do not contain other
Chris@565 205 // message types). If sysex messages are split across multiple
Chris@565 206 // MIDIPacketLists, they must be handled by multiple calls to this
Chris@565 207 // function.
Chris@559 208
Chris@559 209 nBytes = packet->length;
Chris@559 210 if ( nBytes == 0 ) continue;
Chris@559 211
Chris@559 212 // Calculate time stamp.
Chris@559 213 message.timeStamp = 0.0;
Chris@559 214 if ( data->firstMessage )
Chris@559 215 data->firstMessage = false;
Chris@559 216 else {
Chris@559 217 time = packet->timeStamp;
Chris@559 218 time -= apiData->lastTime;
Chris@559 219 time = AudioConvertHostTimeToNanos( time );
Chris@559 220 message.timeStamp = time * 0.000000001;
Chris@559 221 }
Chris@559 222 apiData->lastTime = packet->timeStamp;
Chris@559 223
Chris@559 224 iByte = 0;
Chris@559 225 if ( continueSysex ) {
Chris@559 226 // We have a continuing, segmented sysex message.
Chris@565 227 if ( !( data->ignoreFlags & 0x01 ) ) {
Chris@559 228 // If we're not ignoring sysex messages, copy the entire packet.
Chris@559 229 for ( unsigned int j=0; j<nBytes; j++ )
Chris@559 230 message.bytes.push_back( packet->data[j] );
Chris@559 231 }
Chris@565 232 continueSysex = packet->data[nBytes-1] != 0xF7;
Chris@565 233
Chris@559 234 if ( !continueSysex ) {
Chris@559 235 // If not a continuing sysex message, invoke the user callback function or queue the message.
Chris@559 236 if ( data->usingCallback && message.bytes.size() > 0 ) {
Chris@559 237 RtMidiIn::RtMidiCallback callback = (RtMidiIn::RtMidiCallback) data->userCallback;
Chris@559 238 callback( message.timeStamp, &message.bytes, data->userData );
Chris@559 239 }
Chris@559 240 else {
Chris@559 241 // As long as we haven't reached our queue size limit, push the message.
Chris@559 242 if ( data->queueLimit > data->queue.size() )
Chris@559 243 data->queue.push( message );
Chris@559 244 else
Chris@559 245 std::cerr << "\nRtMidiIn: message queue limit reached!!\n\n";
Chris@559 246 }
Chris@559 247 message.bytes.clear();
Chris@559 248 }
Chris@559 249 }
Chris@559 250 else {
Chris@559 251 while ( iByte < nBytes ) {
Chris@559 252 size = 0;
Chris@559 253 // We are expecting that the next byte in the packet is a status byte.
Chris@559 254 status = packet->data[iByte];
Chris@559 255 if ( !(status & 0x80) ) break;
Chris@559 256 // Determine the number of bytes in the MIDI message.
Chris@559 257 if ( status < 0xC0 ) size = 3;
Chris@559 258 else if ( status < 0xE0 ) size = 2;
Chris@559 259 else if ( status < 0xF0 ) size = 3;
Chris@559 260 else if ( status == 0xF0 ) {
Chris@559 261 // A MIDI sysex
Chris@559 262 if ( data->ignoreFlags & 0x01 ) {
Chris@559 263 size = 0;
Chris@559 264 iByte = nBytes;
Chris@559 265 }
Chris@559 266 else size = nBytes - iByte;
Chris@565 267 continueSysex = packet->data[nBytes-1] != 0xF7;
Chris@559 268 }
Chris@559 269 else if ( status < 0xF3 ) {
Chris@559 270 if ( status == 0xF1 && (data->ignoreFlags & 0x02) ) {
Chris@559 271 // A MIDI time code message and we're ignoring it.
Chris@559 272 size = 0;
Chris@559 273 iByte += 3;
Chris@559 274 }
Chris@559 275 else size = 3;
Chris@559 276 }
Chris@559 277 else if ( status == 0xF3 ) size = 2;
Chris@559 278 else if ( status == 0xF8 ) {
Chris@559 279 size = 1;
Chris@559 280 if ( data->ignoreFlags & 0x02 ) {
Chris@559 281 // A MIDI timing tick message and we're ignoring it.
Chris@559 282 size = 0;
Chris@559 283 iByte += 3;
Chris@559 284 }
Chris@559 285 }
Chris@559 286 else if ( status == 0xFE && (data->ignoreFlags & 0x04) ) {
Chris@559 287 // A MIDI active sensing message and we're ignoring it.
Chris@559 288 size = 0;
Chris@559 289 iByte += 1;
Chris@559 290 }
Chris@559 291 else size = 1;
Chris@559 292
Chris@559 293 // Copy the MIDI data to our vector.
Chris@559 294 if ( size ) {
Chris@559 295 message.bytes.assign( &packet->data[iByte], &packet->data[iByte+size] );
Chris@559 296 if ( !continueSysex ) {
Chris@559 297 // If not a continuing sysex message, invoke the user callback function or queue the message.
Chris@559 298 if ( data->usingCallback ) {
Chris@559 299 RtMidiIn::RtMidiCallback callback = (RtMidiIn::RtMidiCallback) data->userCallback;
Chris@559 300 callback( message.timeStamp, &message.bytes, data->userData );
Chris@559 301 }
Chris@559 302 else {
Chris@559 303 // As long as we haven't reached our queue size limit, push the message.
Chris@559 304 if ( data->queueLimit > data->queue.size() )
Chris@559 305 data->queue.push( message );
Chris@559 306 else
Chris@559 307 std::cerr << "\nRtMidiIn: message queue limit reached!!\n\n";
Chris@559 308 }
Chris@559 309 message.bytes.clear();
Chris@559 310 }
Chris@559 311 iByte += size;
Chris@559 312 }
Chris@559 313 }
Chris@559 314 }
Chris@559 315 packet = MIDIPacketNext(packet);
Chris@559 316 }
Chris@559 317 }
Chris@559 318
Chris@565 319 void RtMidiIn :: initialize( const std::string& clientName )
Chris@559 320 {
Chris@559 321 // Set up our client.
Chris@559 322 MIDIClientRef client;
Chris@565 323 OSStatus result = MIDIClientCreate( CFStringCreateWithCString( NULL, clientName.c_str(), kCFStringEncodingASCII ), NULL, NULL, &client );
Chris@559 324 if ( result != noErr ) {
Chris@559 325 errorString_ = "RtMidiIn::initialize: error creating OS-X MIDI client object.";
Chris@559 326 error( RtError::DRIVER_ERROR );
Chris@559 327 }
Chris@559 328
Chris@559 329 // Save our api-specific connection information.
Chris@559 330 CoreMidiData *data = (CoreMidiData *) new CoreMidiData;
Chris@559 331 data->client = client;
Chris@559 332 data->endpoint = 0;
Chris@559 333 apiData_ = (void *) data;
Chris@559 334 inputData_.apiData = (void *) data;
Chris@559 335 }
Chris@559 336
Chris@565 337 void RtMidiIn :: openPort( unsigned int portNumber, const std::string portName )
Chris@559 338 {
Chris@559 339 if ( connected_ ) {
Chris@559 340 errorString_ = "RtMidiIn::openPort: a valid connection already exists!";
Chris@559 341 error( RtError::WARNING );
Chris@559 342 return;
Chris@559 343 }
Chris@559 344
Chris@559 345 unsigned int nSrc = MIDIGetNumberOfSources();
Chris@559 346 if (nSrc < 1) {
Chris@559 347 errorString_ = "RtMidiIn::openPort: no MIDI input sources found!";
Chris@559 348 error( RtError::NO_DEVICES_FOUND );
Chris@559 349 }
Chris@559 350
Chris@559 351 std::ostringstream ost;
Chris@559 352 if ( portNumber >= nSrc ) {
Chris@559 353 ost << "RtMidiIn::openPort: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 354 errorString_ = ost.str();
Chris@559 355 error( RtError::INVALID_PARAMETER );
Chris@559 356 }
Chris@559 357
Chris@559 358 MIDIPortRef port;
Chris@559 359 CoreMidiData *data = static_cast<CoreMidiData *> (apiData_);
Chris@565 360 OSStatus result = MIDIInputPortCreate( data->client,
Chris@565 361 CFStringCreateWithCString( NULL, portName.c_str(), kCFStringEncodingASCII ),
Chris@565 362 midiInputCallback, (void *)&inputData_, &port );
Chris@559 363 if ( result != noErr ) {
Chris@559 364 MIDIClientDispose( data->client );
Chris@559 365 errorString_ = "RtMidiIn::openPort: error creating OS-X MIDI input port.";
Chris@559 366 error( RtError::DRIVER_ERROR );
Chris@559 367 }
Chris@559 368
Chris@559 369 // Get the desired input source identifier.
Chris@559 370 MIDIEndpointRef endpoint = MIDIGetSource( portNumber );
Chris@559 371 if ( endpoint == NULL ) {
Chris@559 372 MIDIPortDispose( port );
Chris@559 373 MIDIClientDispose( data->client );
Chris@559 374 errorString_ = "RtMidiIn::openPort: error getting MIDI input source reference.";
Chris@559 375 error( RtError::DRIVER_ERROR );
Chris@559 376 }
Chris@559 377
Chris@559 378 // Make the connection.
Chris@559 379 result = MIDIPortConnectSource( port, endpoint, NULL );
Chris@559 380 if ( result != noErr ) {
Chris@559 381 MIDIPortDispose( port );
Chris@559 382 MIDIClientDispose( data->client );
Chris@559 383 errorString_ = "RtMidiIn::openPort: error connecting OS-X MIDI input port.";
Chris@559 384 error( RtError::DRIVER_ERROR );
Chris@559 385 }
Chris@559 386
Chris@559 387 // Save our api-specific port information.
Chris@559 388 data->port = port;
Chris@559 389
Chris@559 390 connected_ = true;
Chris@559 391 }
Chris@559 392
Chris@559 393 void RtMidiIn :: openVirtualPort( const std::string portName )
Chris@559 394 {
Chris@559 395 CoreMidiData *data = static_cast<CoreMidiData *> (apiData_);
Chris@559 396
Chris@559 397 // Create a virtual MIDI input destination.
Chris@559 398 MIDIEndpointRef endpoint;
Chris@559 399 OSStatus result = MIDIDestinationCreate( data->client,
Chris@559 400 CFStringCreateWithCString( NULL, portName.c_str(), kCFStringEncodingASCII ),
Chris@559 401 midiInputCallback, (void *)&inputData_, &endpoint );
Chris@559 402 if ( result != noErr ) {
Chris@559 403 errorString_ = "RtMidiIn::openVirtualPort: error creating virtual OS-X MIDI destination.";
Chris@559 404 error( RtError::DRIVER_ERROR );
Chris@559 405 }
Chris@559 406
Chris@559 407 // Save our api-specific connection information.
Chris@559 408 data->endpoint = endpoint;
Chris@559 409 }
Chris@559 410
Chris@559 411 void RtMidiIn :: closePort( void )
Chris@559 412 {
Chris@559 413 if ( connected_ ) {
Chris@559 414 CoreMidiData *data = static_cast<CoreMidiData *> (apiData_);
Chris@559 415 MIDIPortDispose( data->port );
Chris@559 416 connected_ = false;
Chris@559 417 }
Chris@559 418 }
Chris@559 419
Chris@559 420 RtMidiIn :: ~RtMidiIn()
Chris@559 421 {
Chris@559 422 // Close a connection if it exists.
Chris@559 423 closePort();
Chris@559 424
Chris@559 425 // Cleanup.
Chris@559 426 CoreMidiData *data = static_cast<CoreMidiData *> (apiData_);
Chris@559 427 MIDIClientDispose( data->client );
Chris@559 428 if ( data->endpoint ) MIDIEndpointDispose( data->endpoint );
Chris@559 429 delete data;
Chris@559 430 }
Chris@559 431
Chris@559 432 unsigned int RtMidiIn :: getPortCount()
Chris@559 433 {
Chris@559 434 return MIDIGetNumberOfSources();
Chris@559 435 }
Chris@559 436
Chris@559 437 std::string RtMidiIn :: getPortName( unsigned int portNumber )
Chris@559 438 {
Chris@559 439 CFStringRef nameRef;
Chris@559 440 MIDIEndpointRef portRef;
Chris@559 441 std::ostringstream ost;
Chris@559 442 char name[128];
Chris@559 443
Chris@559 444 if ( portNumber >= MIDIGetNumberOfSources() ) {
Chris@559 445 ost << "RtMidiIn::getPortName: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 446 errorString_ = ost.str();
Chris@559 447 error( RtError::INVALID_PARAMETER );
Chris@559 448 }
Chris@559 449 portRef = MIDIGetSource( portNumber );
Chris@559 450
Chris@559 451 MIDIObjectGetStringProperty( portRef, kMIDIPropertyName, &nameRef );
Chris@559 452 CFStringGetCString( nameRef, name, sizeof(name), 0);
Chris@559 453 CFRelease( nameRef );
Chris@559 454 std::string stringName = name;
Chris@559 455 return stringName;
Chris@559 456 }
Chris@559 457
Chris@559 458 //*********************************************************************//
Chris@559 459 // API: OS-X
Chris@559 460 // Class Definitions: RtMidiOut
Chris@559 461 //*********************************************************************//
Chris@559 462
Chris@559 463 unsigned int RtMidiOut :: getPortCount()
Chris@559 464 {
Chris@559 465 return MIDIGetNumberOfDestinations();
Chris@559 466 }
Chris@559 467
Chris@559 468 std::string RtMidiOut :: getPortName( unsigned int portNumber )
Chris@559 469 {
Chris@559 470 CFStringRef nameRef;
Chris@559 471 MIDIEndpointRef portRef;
Chris@559 472 std::ostringstream ost;
Chris@559 473 char name[128];
Chris@559 474
Chris@559 475 if ( portNumber >= MIDIGetNumberOfDestinations() ) {
Chris@559 476 ost << "RtMidiOut::getPortName: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 477 errorString_ = ost.str();
Chris@559 478 error( RtError::INVALID_PARAMETER );
Chris@559 479 }
Chris@559 480 portRef = MIDIGetDestination( portNumber );
Chris@559 481
Chris@559 482 MIDIObjectGetStringProperty( portRef, kMIDIPropertyName, &nameRef );
Chris@559 483 CFStringGetCString( nameRef, name, sizeof(name), 0);
Chris@559 484 CFRelease( nameRef );
Chris@559 485 std::string stringName = name;
Chris@559 486 return stringName;
Chris@559 487 }
Chris@559 488
Chris@565 489 void RtMidiOut :: initialize( const std::string& clientName )
Chris@559 490 {
Chris@559 491 // Set up our client.
Chris@559 492 MIDIClientRef client;
Chris@565 493 OSStatus result = MIDIClientCreate( CFStringCreateWithCString( NULL, clientName.c_str(), kCFStringEncodingASCII ), NULL, NULL, &client );
Chris@559 494 if ( result != noErr ) {
Chris@559 495 errorString_ = "RtMidiOut::initialize: error creating OS-X MIDI client object.";
Chris@559 496 error( RtError::DRIVER_ERROR );
Chris@559 497 }
Chris@559 498
Chris@559 499 // Save our api-specific connection information.
Chris@559 500 CoreMidiData *data = (CoreMidiData *) new CoreMidiData;
Chris@559 501 data->client = client;
Chris@559 502 data->endpoint = 0;
Chris@559 503 apiData_ = (void *) data;
Chris@559 504 }
Chris@559 505
Chris@565 506 void RtMidiOut :: openPort( unsigned int portNumber, const std::string portName )
Chris@559 507 {
Chris@559 508 if ( connected_ ) {
Chris@559 509 errorString_ = "RtMidiOut::openPort: a valid connection already exists!";
Chris@559 510 error( RtError::WARNING );
Chris@559 511 return;
Chris@559 512 }
Chris@559 513
Chris@559 514 unsigned int nDest = MIDIGetNumberOfDestinations();
Chris@559 515 if (nDest < 1) {
Chris@559 516 errorString_ = "RtMidiOut::openPort: no MIDI output destinations found!";
Chris@559 517 error( RtError::NO_DEVICES_FOUND );
Chris@559 518 }
Chris@559 519
Chris@559 520 std::ostringstream ost;
Chris@559 521 if ( portNumber >= nDest ) {
Chris@559 522 ost << "RtMidiOut::openPort: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 523 errorString_ = ost.str();
Chris@559 524 error( RtError::INVALID_PARAMETER );
Chris@559 525 }
Chris@559 526
Chris@559 527 MIDIPortRef port;
Chris@559 528 CoreMidiData *data = static_cast<CoreMidiData *> (apiData_);
Chris@565 529 OSStatus result = MIDIOutputPortCreate( data->client,
Chris@565 530 CFStringCreateWithCString( NULL, portName.c_str(), kCFStringEncodingASCII ),
Chris@565 531 &port );
Chris@559 532 if ( result != noErr ) {
Chris@559 533 MIDIClientDispose( data->client );
Chris@559 534 errorString_ = "RtMidiOut::openPort: error creating OS-X MIDI output port.";
Chris@559 535 error( RtError::DRIVER_ERROR );
Chris@559 536 }
Chris@559 537
Chris@559 538 // Get the desired output port identifier.
Chris@559 539 MIDIEndpointRef destination = MIDIGetDestination( portNumber );
Chris@559 540 if ( destination == NULL ) {
Chris@559 541 MIDIPortDispose( port );
Chris@559 542 MIDIClientDispose( data->client );
Chris@559 543 errorString_ = "RtMidiOut::openPort: error getting MIDI output destination reference.";
Chris@559 544 error( RtError::DRIVER_ERROR );
Chris@559 545 }
Chris@559 546
Chris@559 547 // Save our api-specific connection information.
Chris@559 548 data->port = port;
Chris@559 549 data->destinationId = destination;
Chris@559 550 connected_ = true;
Chris@559 551 }
Chris@559 552
Chris@559 553 void RtMidiOut :: closePort( void )
Chris@559 554 {
Chris@559 555 if ( connected_ ) {
Chris@559 556 CoreMidiData *data = static_cast<CoreMidiData *> (apiData_);
Chris@559 557 MIDIPortDispose( data->port );
Chris@559 558 connected_ = false;
Chris@559 559 }
Chris@559 560 }
Chris@559 561
Chris@559 562 void RtMidiOut :: openVirtualPort( std::string portName )
Chris@559 563 {
Chris@559 564 CoreMidiData *data = static_cast<CoreMidiData *> (apiData_);
Chris@559 565
Chris@559 566 if ( data->endpoint ) {
Chris@559 567 errorString_ = "RtMidiOut::openVirtualPort: a virtual output port already exists!";
Chris@559 568 error( RtError::WARNING );
Chris@559 569 return;
Chris@559 570 }
Chris@559 571
Chris@559 572 // Create a virtual MIDI output source.
Chris@559 573 MIDIEndpointRef endpoint;
Chris@559 574 OSStatus result = MIDISourceCreate( data->client,
Chris@559 575 CFStringCreateWithCString( NULL, portName.c_str(), kCFStringEncodingASCII ),
Chris@559 576 &endpoint );
Chris@559 577 if ( result != noErr ) {
Chris@559 578 errorString_ = "RtMidiOut::initialize: error creating OS-X virtual MIDI source.";
Chris@559 579 error( RtError::DRIVER_ERROR );
Chris@559 580 }
Chris@559 581
Chris@559 582 // Save our api-specific connection information.
Chris@559 583 data->endpoint = endpoint;
Chris@559 584 }
Chris@559 585
Chris@559 586 RtMidiOut :: ~RtMidiOut()
Chris@559 587 {
Chris@559 588 // Close a connection if it exists.
Chris@559 589 closePort();
Chris@559 590
Chris@559 591 // Cleanup.
Chris@559 592 CoreMidiData *data = static_cast<CoreMidiData *> (apiData_);
Chris@559 593 MIDIClientDispose( data->client );
Chris@559 594 if ( data->endpoint ) MIDIEndpointDispose( data->endpoint );
Chris@559 595 delete data;
Chris@559 596 }
Chris@559 597
Chris@559 598 void RtMidiOut :: sendMessage( std::vector<unsigned char> *message )
Chris@559 599 {
Chris@565 600 // The CoreMidi documentation indicates a maximum PackList size of
Chris@565 601 // 64K, so we may need to break long sysex messages into pieces and
Chris@565 602 // send via separate lists.
Chris@559 603 unsigned int nBytes = message->size();
Chris@565 604 if ( nBytes == 0 ) {
Chris@565 605 errorString_ = "RtMidiOut::sendMessage: no data in message argument!";
Chris@565 606 error( RtError::WARNING );
Chris@565 607 return;
Chris@565 608 }
Chris@559 609
Chris@565 610 if ( nBytes > 3 && ( message->at(0) != 0xF0 ) ) {
Chris@565 611 errorString_ = "RtMidiOut::sendMessage: message format problem ... not sysex but > 3 bytes?";
Chris@565 612 error( RtError::WARNING );
Chris@565 613 return;
Chris@565 614 }
Chris@565 615
Chris@565 616 unsigned int packetBytes, bytesLeft = nBytes;
Chris@565 617 unsigned int messageIndex = 0;
Chris@559 618 MIDITimeStamp timeStamp = 0;
Chris@559 619 CoreMidiData *data = static_cast<CoreMidiData *> (apiData_);
Chris@559 620
Chris@565 621 while ( bytesLeft > 0 ) {
Chris@565 622
Chris@565 623 packetBytes = ( bytesLeft > 32736 ) ? 32736 : bytesLeft;
Chris@565 624 Byte buffer[packetBytes + 32]; // extra memory for other structure variables
Chris@565 625 MIDIPacketList *packetList = (MIDIPacketList *) buffer;
Chris@565 626 MIDIPacket *curPacket = MIDIPacketListInit( packetList );
Chris@565 627
Chris@565 628 curPacket = MIDIPacketListAdd( packetList, packetBytes+32, curPacket, timeStamp, packetBytes, (const Byte *) &message->at( messageIndex ) );
Chris@565 629 if ( !curPacket ) {
Chris@565 630 errorString_ = "RtMidiOut::sendMessage: could not allocate packet list";
Chris@565 631 error( RtError::DRIVER_ERROR );
Chris@559 632 }
Chris@565 633 messageIndex += packetBytes;
Chris@565 634 bytesLeft -= packetBytes;
Chris@559 635
Chris@565 636 // Send to any destinations that may have connected to us.
Chris@565 637 OSStatus result;
Chris@565 638 if ( data->endpoint ) {
Chris@565 639 result = MIDIReceived( data->endpoint, packetList );
Chris@565 640 if ( result != noErr ) {
Chris@565 641 errorString_ = "RtMidiOut::sendMessage: error sending MIDI to virtual destinations.";
Chris@565 642 error( RtError::WARNING );
Chris@565 643 }
Chris@565 644 }
Chris@565 645
Chris@565 646 // And send to an explicit destination port if we're connected.
Chris@565 647 if ( connected_ ) {
Chris@565 648 result = MIDISend( data->port, data->destinationId, packetList );
Chris@565 649 if ( result != noErr ) {
Chris@565 650 errorString_ = "RtMidiOut::sendMessage: error sending MIDI message to port.";
Chris@565 651 error( RtError::WARNING );
Chris@565 652 }
Chris@559 653 }
Chris@559 654 }
Chris@559 655 }
Chris@559 656
Chris@559 657 #endif // __MACOSX_CORE__
Chris@559 658
Chris@559 659
Chris@559 660 //*********************************************************************//
Chris@559 661 // API: LINUX ALSA SEQUENCER
Chris@559 662 //*********************************************************************//
Chris@559 663
Chris@559 664 // API information found at:
Chris@559 665 // - http://www.alsa-project.org/documentation.php#Library
Chris@559 666
Chris@559 667 #if defined(__LINUX_ALSASEQ__)
Chris@559 668
Chris@559 669 // The ALSA Sequencer API is based on the use of a callback function for
Chris@559 670 // MIDI input.
Chris@559 671 //
Chris@559 672 // Thanks to Pedro Lopez-Cabanillas for help with the ALSA sequencer
Chris@559 673 // time stamps and other assorted fixes!!!
Chris@559 674
Chris@559 675 #include <pthread.h>
Chris@559 676 #include <sys/time.h>
Chris@559 677
Chris@559 678 // ALSA header file.
Chris@559 679 #include <alsa/asoundlib.h>
Chris@559 680
Chris@559 681 // A structure to hold variables related to the ALSA API
Chris@559 682 // implementation.
Chris@559 683 struct AlsaMidiData {
Chris@559 684 snd_seq_t *seq;
Chris@559 685 int vport;
Chris@559 686 snd_seq_port_subscribe_t *subscription;
Chris@559 687 snd_midi_event_t *coder;
Chris@559 688 unsigned int bufferSize;
Chris@559 689 unsigned char *buffer;
Chris@559 690 pthread_t thread;
Chris@559 691 unsigned long long lastTime;
Chris@559 692 int queue_id; // an input queue is needed to get timestamped events
Chris@559 693 };
Chris@559 694
Chris@559 695 #define PORT_TYPE( pinfo, bits ) ((snd_seq_port_info_get_capability(pinfo) & (bits)) == (bits))
Chris@559 696
Chris@559 697 //*********************************************************************//
Chris@559 698 // API: LINUX ALSA
Chris@559 699 // Class Definitions: RtMidiIn
Chris@559 700 //*********************************************************************//
Chris@559 701
Chris@559 702 extern "C" void *alsaMidiHandler( void *ptr )
Chris@559 703 {
Chris@559 704 RtMidiIn::RtMidiInData *data = static_cast<RtMidiIn::RtMidiInData *> (ptr);
Chris@559 705 AlsaMidiData *apiData = static_cast<AlsaMidiData *> (data->apiData);
Chris@559 706
Chris@559 707 long nBytes;
Chris@559 708 unsigned long long time, lastTime;
Chris@559 709 bool continueSysex = false;
Chris@559 710 RtMidiIn::MidiMessage message;
Chris@559 711
Chris@559 712 snd_seq_event_t *ev;
Chris@559 713 int result;
Chris@559 714 apiData->bufferSize = 32;
Chris@559 715 result = snd_midi_event_new( 0, &apiData->coder );
Chris@559 716 if ( result < 0 ) {
Chris@559 717 data->doInput = false;
Chris@559 718 std::cerr << "\nRtMidiIn::alsaMidiHandler: error initializing MIDI event parser!\n\n";
Chris@559 719 return 0;
Chris@559 720 }
Chris@559 721 unsigned char *buffer = (unsigned char *) malloc( apiData->bufferSize );
Chris@559 722 if ( buffer == NULL ) {
Chris@559 723 data->doInput = false;
Chris@559 724 std::cerr << "\nRtMidiIn::alsaMidiHandler: error initializing buffer memory!\n\n";
Chris@559 725 return 0;
Chris@559 726 }
Chris@559 727 snd_midi_event_init( apiData->coder );
Chris@559 728 snd_midi_event_no_status( apiData->coder, 1 ); // suppress running status messages
Chris@559 729
Chris@559 730 while ( data->doInput ) {
Chris@559 731
Chris@559 732 if ( snd_seq_event_input_pending( apiData->seq, 1 ) == 0 ) {
Chris@559 733 // No data pending ... sleep a bit.
Chris@559 734 usleep( 1000 );
Chris@559 735 continue;
Chris@559 736 }
Chris@559 737
Chris@559 738 // If here, there should be data.
Chris@559 739 result = snd_seq_event_input( apiData->seq, &ev );
Chris@559 740 if ( result == -ENOSPC ) {
Chris@559 741 std::cerr << "\nRtMidiIn::alsaMidiHandler: MIDI input buffer overrun!\n\n";
Chris@559 742 continue;
Chris@559 743 }
Chris@559 744 else if ( result <= 0 ) {
Chris@559 745 std::cerr << "RtMidiIn::alsaMidiHandler: unknown MIDI input error!\n";
Chris@559 746 continue;
Chris@559 747 }
Chris@559 748
Chris@559 749 // This is a bit weird, but we now have to decode an ALSA MIDI
Chris@559 750 // event (back) into MIDI bytes. We'll ignore non-MIDI types.
Chris@565 751 if ( !continueSysex )
Chris@565 752 message.bytes.clear();
Chris@565 753
Chris@559 754 switch ( ev->type ) {
Chris@559 755
Chris@559 756 case SND_SEQ_EVENT_PORT_SUBSCRIBED:
Chris@559 757 #if defined(__RTMIDI_DEBUG__)
Chris@559 758 std::cout << "RtMidiIn::alsaMidiHandler: port connection made!\n";
Chris@559 759 #endif
Chris@559 760 break;
Chris@559 761
Chris@559 762 case SND_SEQ_EVENT_PORT_UNSUBSCRIBED:
Chris@565 763 #if defined(__RTMIDI_DEBUG__)
Chris@690 764 SVDEBUG << "RtMidiIn::alsaMidiHandler: port connection has closed!\n";
Chris@565 765 // FIXME: this is called for all unsubscribe events, even ones
Chris@565 766 //not related to this particular connection. As it stands, I
Chris@565 767 //see no data provided in the "source" and "dest" fields so
Chris@565 768 //there is nothing we can do about this at this time.
Chris@687 769 // std::cout << "sender = " << ev->source.client << ", dest = " << ev->dest.port << endl;
Chris@565 770 #endif
Chris@565 771 //data->doInput = false;
Chris@559 772 break;
Chris@559 773
Chris@559 774 case SND_SEQ_EVENT_QFRAME: // MIDI time code
Chris@559 775 if ( data->ignoreFlags & 0x02 ) break;
Chris@559 776
Chris@559 777 case SND_SEQ_EVENT_TICK: // MIDI timing tick
Chris@559 778 if ( data->ignoreFlags & 0x02 ) break;
Chris@559 779
Chris@559 780 case SND_SEQ_EVENT_SENSING: // Active sensing
Chris@559 781 if ( data->ignoreFlags & 0x04 ) break;
Chris@559 782
Chris@559 783 case SND_SEQ_EVENT_SYSEX:
Chris@559 784 if ( (data->ignoreFlags & 0x01) ) break;
Chris@559 785 if ( ev->data.ext.len > apiData->bufferSize ) {
Chris@559 786 apiData->bufferSize = ev->data.ext.len;
Chris@559 787 free( buffer );
Chris@559 788 buffer = (unsigned char *) malloc( apiData->bufferSize );
Chris@559 789 if ( buffer == NULL ) {
Chris@559 790 data->doInput = false;
Chris@559 791 std::cerr << "\nRtMidiIn::alsaMidiHandler: error resizing buffer memory!\n\n";
Chris@559 792 break;
Chris@559 793 }
Chris@559 794 }
Chris@559 795
Chris@559 796 default:
Chris@559 797 nBytes = snd_midi_event_decode( apiData->coder, buffer, apiData->bufferSize, ev );
Chris@559 798 if ( nBytes <= 0 ) {
Chris@559 799 #if defined(__RTMIDI_DEBUG__)
Chris@559 800 std::cerr << "\nRtMidiIn::alsaMidiHandler: event parsing error or not a MIDI event!\n\n";
Chris@559 801 #endif
Chris@559 802 break;
Chris@559 803 }
Chris@559 804
Chris@559 805 // The ALSA sequencer has a maximum buffer size for MIDI sysex
Chris@559 806 // events of 256 bytes. If a device sends sysex messages larger
Chris@559 807 // than this, they are segmented into 256 byte chunks. So,
Chris@559 808 // we'll watch for this and concatenate sysex chunks into a
Chris@559 809 // single sysex message if necessary.
Chris@559 810 if ( !continueSysex )
Chris@559 811 message.bytes.assign( buffer, &buffer[nBytes] );
Chris@559 812 else
Chris@559 813 message.bytes.insert( message.bytes.end(), buffer, &buffer[nBytes] );
Chris@559 814
Chris@565 815 continueSysex = ( ( ev->type == SND_SEQ_EVENT_SYSEX ) && ( message.bytes.back() != 0xF7 ) );
Chris@559 816 if ( continueSysex )
Chris@559 817 break;
Chris@559 818
Chris@559 819 // Calculate the time stamp:
Chris@559 820 message.timeStamp = 0.0;
Chris@559 821
Chris@559 822 // Method 1: Use the system time.
Chris@559 823 //(void)gettimeofday(&tv, (struct timezone *)NULL);
Chris@559 824 //time = (tv.tv_sec * 1000000) + tv.tv_usec;
Chris@559 825
Chris@559 826 // Method 2: Use the ALSA sequencer event time data.
Chris@559 827 // (thanks to Pedro Lopez-Cabanillas!).
Chris@559 828 time = ( ev->time.time.tv_sec * 1000000 ) + ( ev->time.time.tv_nsec/1000 );
Chris@559 829 lastTime = time;
Chris@559 830 time -= apiData->lastTime;
Chris@559 831 apiData->lastTime = lastTime;
Chris@559 832 if ( data->firstMessage == true )
Chris@559 833 data->firstMessage = false;
Chris@559 834 else
Chris@559 835 message.timeStamp = time * 0.000001;
Chris@559 836 }
Chris@559 837
Chris@559 838 snd_seq_free_event(ev);
Chris@559 839 if ( message.bytes.size() == 0 ) continue;
Chris@559 840
Chris@565 841 if ( data->usingCallback && !continueSysex ) {
Chris@559 842 RtMidiIn::RtMidiCallback callback = (RtMidiIn::RtMidiCallback) data->userCallback;
Chris@559 843 callback( message.timeStamp, &message.bytes, data->userData );
Chris@559 844 }
Chris@559 845 else {
Chris@559 846 // As long as we haven't reached our queue size limit, push the message.
Chris@559 847 if ( data->queueLimit > data->queue.size() )
Chris@559 848 data->queue.push( message );
Chris@559 849 else
Chris@559 850 std::cerr << "\nRtMidiIn: message queue limit reached!!\n\n";
Chris@559 851 }
Chris@559 852 }
Chris@559 853
Chris@559 854 if ( buffer ) free( buffer );
Chris@559 855 snd_midi_event_free( apiData->coder );
Chris@559 856 apiData->coder = 0;
Chris@559 857 return 0;
Chris@559 858 }
Chris@559 859
Chris@565 860 void RtMidiIn :: initialize( const std::string& clientName )
Chris@559 861 {
Chris@559 862 // Set up the ALSA sequencer client.
Chris@565 863 snd_seq_t *seq;
Chris@559 864 int result = snd_seq_open(&seq, "default", SND_SEQ_OPEN_DUPLEX, SND_SEQ_NONBLOCK);
Chris@559 865 if ( result < 0 ) {
Chris@559 866 errorString_ = "RtMidiIn::initialize: error creating ALSA sequencer input client object.";
Chris@559 867 error( RtError::DRIVER_ERROR );
Chris@559 868 }
Chris@559 869
Chris@559 870 // Set client name.
Chris@565 871 snd_seq_set_client_name( seq, clientName.c_str() );
Chris@559 872
Chris@559 873 // Save our api-specific connection information.
Chris@559 874 AlsaMidiData *data = (AlsaMidiData *) new AlsaMidiData;
Chris@559 875 data->seq = seq;
Chris@559 876 data->vport = -1;
Chris@559 877 apiData_ = (void *) data;
Chris@559 878 inputData_.apiData = (void *) data;
Chris@559 879
Chris@559 880 // Create the input queue
Chris@559 881 data->queue_id = snd_seq_alloc_named_queue(seq, "RtMidi Queue");
Chris@559 882 // Set arbitrary tempo (mm=100) and resolution (240)
Chris@559 883 snd_seq_queue_tempo_t *qtempo;
Chris@559 884 snd_seq_queue_tempo_alloca(&qtempo);
Chris@559 885 snd_seq_queue_tempo_set_tempo(qtempo, 600000);
Chris@559 886 snd_seq_queue_tempo_set_ppq(qtempo, 240);
Chris@559 887 snd_seq_set_queue_tempo(data->seq, data->queue_id, qtempo);
Chris@559 888 snd_seq_drain_output(data->seq);
Chris@559 889 }
Chris@559 890
Chris@559 891 // This function is used to count or get the pinfo structure for a given port number.
Chris@559 892 unsigned int portInfo( snd_seq_t *seq, snd_seq_port_info_t *pinfo, unsigned int type, int portNumber )
Chris@559 893 {
Chris@559 894 snd_seq_client_info_t *cinfo;
Chris@559 895 int client;
Chris@559 896 int count = 0;
Chris@559 897 snd_seq_client_info_alloca( &cinfo );
Chris@559 898
Chris@559 899 snd_seq_client_info_set_client( cinfo, -1 );
Chris@559 900 while ( snd_seq_query_next_client( seq, cinfo ) >= 0 ) {
Chris@559 901 client = snd_seq_client_info_get_client( cinfo );
Chris@559 902 if ( client == 0 ) continue;
Chris@559 903 // Reset query info
Chris@559 904 snd_seq_port_info_set_client( pinfo, client );
Chris@559 905 snd_seq_port_info_set_port( pinfo, -1 );
Chris@559 906 while ( snd_seq_query_next_port( seq, pinfo ) >= 0 ) {
Chris@565 907 unsigned int atyp = snd_seq_port_info_get_type( pinfo );
Chris@565 908 if ( ( atyp & SND_SEQ_PORT_TYPE_MIDI_GENERIC ) == 0 ) continue;
Chris@565 909 unsigned int caps = snd_seq_port_info_get_capability( pinfo );
Chris@565 910 if ( ( caps & type ) != type ) continue;
Chris@559 911 if ( count == portNumber ) return 1;
Chris@559 912 count++;
Chris@559 913 }
Chris@559 914 }
Chris@559 915
Chris@559 916 // If a negative portNumber was used, return the port count.
Chris@559 917 if ( portNumber < 0 ) return count;
Chris@559 918 return 0;
Chris@559 919 }
Chris@559 920
Chris@565 921 void RtMidiIn :: openPort( unsigned int portNumber, const std::string portName )
Chris@559 922 {
Chris@559 923 if ( connected_ ) {
Chris@559 924 errorString_ = "RtMidiIn::openPort: a valid connection already exists!";
Chris@559 925 error( RtError::WARNING );
Chris@559 926 return;
Chris@559 927 }
Chris@559 928
Chris@559 929 unsigned int nSrc = this->getPortCount();
Chris@559 930 if (nSrc < 1) {
Chris@559 931 errorString_ = "RtMidiIn::openPort: no MIDI input sources found!";
Chris@559 932 error( RtError::NO_DEVICES_FOUND );
Chris@559 933 }
Chris@559 934
Chris@565 935 snd_seq_port_info_t *pinfo;
Chris@565 936 snd_seq_port_info_alloca( &pinfo );
Chris@559 937 std::ostringstream ost;
Chris@559 938 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 939 if ( portInfo( data->seq, pinfo, SND_SEQ_PORT_CAP_READ|SND_SEQ_PORT_CAP_SUBS_READ, (int) portNumber ) == 0 ) {
Chris@559 940 ost << "RtMidiIn::openPort: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 941 errorString_ = ost.str();
Chris@559 942 error( RtError::INVALID_PARAMETER );
Chris@559 943 }
Chris@559 944
Chris@559 945
Chris@559 946 snd_seq_addr_t sender, receiver;
Chris@559 947 sender.client = snd_seq_port_info_get_client( pinfo );
Chris@559 948 sender.port = snd_seq_port_info_get_port( pinfo );
Chris@559 949 receiver.client = snd_seq_client_id( data->seq );
Chris@559 950 if ( data->vport < 0 ) {
Chris@559 951 snd_seq_port_info_set_client( pinfo, 0 );
Chris@559 952 snd_seq_port_info_set_port( pinfo, 0 );
Chris@559 953 snd_seq_port_info_set_capability( pinfo,
Chris@559 954 SND_SEQ_PORT_CAP_WRITE |
Chris@559 955 SND_SEQ_PORT_CAP_SUBS_WRITE );
Chris@559 956 snd_seq_port_info_set_type( pinfo,
Chris@559 957 SND_SEQ_PORT_TYPE_MIDI_GENERIC |
Chris@559 958 SND_SEQ_PORT_TYPE_APPLICATION );
Chris@559 959 snd_seq_port_info_set_midi_channels(pinfo, 16);
Chris@559 960 snd_seq_port_info_set_timestamping(pinfo, 1);
Chris@559 961 snd_seq_port_info_set_timestamp_real(pinfo, 1);
Chris@559 962 snd_seq_port_info_set_timestamp_queue(pinfo, data->queue_id);
Chris@565 963 snd_seq_port_info_set_name(pinfo, portName.c_str() );
Chris@559 964 data->vport = snd_seq_create_port(data->seq, pinfo);
Chris@559 965
Chris@559 966 if ( data->vport < 0 ) {
Chris@559 967 errorString_ = "RtMidiIn::openPort: ALSA error creating input port.";
Chris@559 968 error( RtError::DRIVER_ERROR );
Chris@559 969 }
Chris@559 970 }
Chris@559 971
Chris@559 972 receiver.port = data->vport;
Chris@559 973
Chris@559 974 // Make subscription
Chris@559 975 snd_seq_port_subscribe_malloc( &data->subscription );
Chris@559 976 snd_seq_port_subscribe_set_sender(data->subscription, &sender);
Chris@559 977 snd_seq_port_subscribe_set_dest(data->subscription, &receiver);
Chris@559 978 if ( snd_seq_subscribe_port(data->seq, data->subscription) ) {
Chris@559 979 errorString_ = "RtMidiIn::openPort: ALSA error making port connection.";
Chris@559 980 error( RtError::DRIVER_ERROR );
Chris@559 981 }
Chris@559 982
Chris@559 983 if ( inputData_.doInput == false ) {
Chris@559 984 // Start the input queue
Chris@559 985 snd_seq_start_queue( data->seq, data->queue_id, NULL );
Chris@559 986 snd_seq_drain_output( data->seq );
Chris@559 987 // Start our MIDI input thread.
Chris@559 988 pthread_attr_t attr;
Chris@559 989 pthread_attr_init(&attr);
Chris@559 990 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
Chris@559 991 pthread_attr_setschedpolicy(&attr, SCHED_OTHER);
Chris@559 992
Chris@559 993 inputData_.doInput = true;
Chris@559 994 int err = pthread_create(&data->thread, &attr, alsaMidiHandler, &inputData_);
Chris@559 995 pthread_attr_destroy(&attr);
Chris@559 996 if (err) {
Chris@559 997 snd_seq_unsubscribe_port( data->seq, data->subscription );
Chris@559 998 snd_seq_port_subscribe_free( data->subscription );
Chris@559 999 inputData_.doInput = false;
Chris@559 1000 errorString_ = "RtMidiIn::openPort: error starting MIDI input thread!";
Chris@559 1001 error( RtError::THREAD_ERROR );
Chris@559 1002 }
Chris@559 1003 }
Chris@559 1004
Chris@559 1005 connected_ = true;
Chris@559 1006 }
Chris@559 1007
Chris@559 1008 void RtMidiIn :: openVirtualPort( std::string portName )
Chris@559 1009 {
Chris@559 1010 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 1011 if ( data->vport < 0 ) {
Chris@559 1012 snd_seq_port_info_t *pinfo;
Chris@559 1013 snd_seq_port_info_alloca( &pinfo );
Chris@559 1014 snd_seq_port_info_set_capability( pinfo,
Chris@559 1015 SND_SEQ_PORT_CAP_WRITE |
Chris@559 1016 SND_SEQ_PORT_CAP_SUBS_WRITE );
Chris@559 1017 snd_seq_port_info_set_type( pinfo,
Chris@559 1018 SND_SEQ_PORT_TYPE_MIDI_GENERIC |
Chris@559 1019 SND_SEQ_PORT_TYPE_APPLICATION );
Chris@559 1020 snd_seq_port_info_set_midi_channels(pinfo, 16);
Chris@559 1021 snd_seq_port_info_set_timestamping(pinfo, 1);
Chris@559 1022 snd_seq_port_info_set_timestamp_real(pinfo, 1);
Chris@559 1023 snd_seq_port_info_set_timestamp_queue(pinfo, data->queue_id);
Chris@559 1024 snd_seq_port_info_set_name(pinfo, portName.c_str());
Chris@559 1025 data->vport = snd_seq_create_port(data->seq, pinfo);
Chris@559 1026
Chris@559 1027 if ( data->vport < 0 ) {
Chris@559 1028 errorString_ = "RtMidiIn::openVirtualPort: ALSA error creating virtual port.";
Chris@559 1029 error( RtError::DRIVER_ERROR );
Chris@559 1030 }
Chris@559 1031 }
Chris@559 1032
Chris@559 1033 if ( inputData_.doInput == false ) {
Chris@559 1034 // Start the input queue
Chris@559 1035 snd_seq_start_queue( data->seq, data->queue_id, NULL );
Chris@559 1036 snd_seq_drain_output( data->seq );
Chris@559 1037 // Start our MIDI input thread.
Chris@559 1038 pthread_attr_t attr;
Chris@559 1039 pthread_attr_init(&attr);
Chris@559 1040 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
Chris@559 1041 pthread_attr_setschedpolicy(&attr, SCHED_OTHER);
Chris@559 1042
Chris@559 1043 inputData_.doInput = true;
Chris@559 1044 int err = pthread_create(&data->thread, &attr, alsaMidiHandler, &inputData_);
Chris@559 1045 pthread_attr_destroy(&attr);
Chris@559 1046 if (err) {
Chris@559 1047 snd_seq_unsubscribe_port( data->seq, data->subscription );
Chris@559 1048 snd_seq_port_subscribe_free( data->subscription );
Chris@559 1049 inputData_.doInput = false;
Chris@559 1050 errorString_ = "RtMidiIn::openPort: error starting MIDI input thread!";
Chris@559 1051 error( RtError::THREAD_ERROR );
Chris@559 1052 }
Chris@559 1053 }
Chris@559 1054 }
Chris@559 1055
Chris@559 1056 void RtMidiIn :: closePort( void )
Chris@559 1057 {
Chris@559 1058 if ( connected_ ) {
Chris@559 1059 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 1060 snd_seq_unsubscribe_port( data->seq, data->subscription );
Chris@559 1061 snd_seq_port_subscribe_free( data->subscription );
Chris@559 1062 // Stop the input queue
Chris@559 1063 snd_seq_stop_queue( data->seq, data->queue_id, NULL );
Chris@559 1064 snd_seq_drain_output( data->seq );
Chris@559 1065 connected_ = false;
Chris@559 1066 }
Chris@559 1067 }
Chris@559 1068
Chris@559 1069 RtMidiIn :: ~RtMidiIn()
Chris@559 1070 {
Chris@559 1071 // Close a connection if it exists.
Chris@559 1072 closePort();
Chris@559 1073
Chris@559 1074 // Shutdown the input thread.
Chris@559 1075 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 1076 if ( inputData_.doInput ) {
Chris@559 1077 inputData_.doInput = false;
Chris@559 1078 pthread_join( data->thread, NULL );
Chris@559 1079 }
Chris@559 1080
Chris@559 1081 // Cleanup.
Chris@559 1082 if ( data->vport >= 0 ) snd_seq_delete_port( data->seq, data->vport );
Chris@559 1083 snd_seq_free_queue( data->seq, data->queue_id );
Chris@559 1084 snd_seq_close( data->seq );
Chris@559 1085 delete data;
Chris@559 1086 }
Chris@559 1087
Chris@559 1088 unsigned int RtMidiIn :: getPortCount()
Chris@559 1089 {
Chris@559 1090 snd_seq_port_info_t *pinfo;
Chris@559 1091 snd_seq_port_info_alloca( &pinfo );
Chris@559 1092
Chris@559 1093 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 1094 return portInfo( data->seq, pinfo, SND_SEQ_PORT_CAP_READ|SND_SEQ_PORT_CAP_SUBS_READ, -1 );
Chris@559 1095 }
Chris@559 1096
Chris@559 1097 std::string RtMidiIn :: getPortName( unsigned int portNumber )
Chris@559 1098 {
Chris@565 1099 snd_seq_client_info_t *cinfo;
Chris@565 1100 snd_seq_port_info_t *pinfo;
Chris@565 1101 snd_seq_client_info_alloca( &cinfo );
Chris@565 1102 snd_seq_port_info_alloca( &pinfo );
Chris@559 1103
Chris@559 1104 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 1105 if ( portInfo( data->seq, pinfo, SND_SEQ_PORT_CAP_READ|SND_SEQ_PORT_CAP_SUBS_READ, (int) portNumber ) ) {
Chris@565 1106 int cnum = snd_seq_port_info_get_client( pinfo );
Chris@565 1107 snd_seq_get_any_client_info( data->seq, cnum, cinfo );
Chris@565 1108 std::ostringstream os;
Chris@565 1109 os << snd_seq_client_info_get_name( cinfo );
Chris@565 1110 os << ":";
Chris@565 1111 os << snd_seq_port_info_get_port( pinfo );
Chris@565 1112 std::string stringName = os.str();
Chris@559 1113 return stringName;
Chris@559 1114 }
Chris@559 1115
Chris@559 1116 // If we get here, we didn't find a match.
Chris@559 1117 errorString_ = "RtMidiIn::getPortName: error looking for port name!";
Chris@559 1118 error( RtError::INVALID_PARAMETER );
Chris@559 1119 return 0;
Chris@559 1120 }
Chris@559 1121
Chris@559 1122 //*********************************************************************//
Chris@559 1123 // API: LINUX ALSA
Chris@559 1124 // Class Definitions: RtMidiOut
Chris@559 1125 //*********************************************************************//
Chris@559 1126
Chris@559 1127 unsigned int RtMidiOut :: getPortCount()
Chris@559 1128 {
Chris@559 1129 snd_seq_port_info_t *pinfo;
Chris@559 1130 snd_seq_port_info_alloca( &pinfo );
Chris@559 1131
Chris@559 1132 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 1133 return portInfo( data->seq, pinfo, SND_SEQ_PORT_CAP_WRITE|SND_SEQ_PORT_CAP_SUBS_WRITE, -1 );
Chris@559 1134 }
Chris@559 1135
Chris@559 1136 std::string RtMidiOut :: getPortName( unsigned int portNumber )
Chris@559 1137 {
Chris@565 1138 snd_seq_client_info_t *cinfo;
Chris@565 1139 snd_seq_port_info_t *pinfo;
Chris@565 1140 snd_seq_client_info_alloca( &cinfo );
Chris@565 1141 snd_seq_port_info_alloca( &pinfo );
Chris@559 1142
Chris@559 1143 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 1144 if ( portInfo( data->seq, pinfo, SND_SEQ_PORT_CAP_WRITE|SND_SEQ_PORT_CAP_SUBS_WRITE, (int) portNumber ) ) {
Chris@565 1145 int cnum = snd_seq_port_info_get_client(pinfo);
Chris@565 1146 snd_seq_get_any_client_info( data->seq, cnum, cinfo );
Chris@565 1147 std::ostringstream os;
Chris@565 1148 os << snd_seq_client_info_get_name(cinfo);
Chris@565 1149 os << ":";
Chris@565 1150 os << snd_seq_port_info_get_port(pinfo);
Chris@565 1151 std::string stringName = os.str();
Chris@559 1152 return stringName;
Chris@559 1153 }
Chris@559 1154
Chris@559 1155 // If we get here, we didn't find a match.
Chris@559 1156 errorString_ = "RtMidiOut::getPortName: error looking for port name!";
Chris@559 1157 error( RtError::INVALID_PARAMETER );
Chris@559 1158 return 0;
Chris@559 1159 }
Chris@559 1160
Chris@565 1161 void RtMidiOut :: initialize( const std::string& clientName )
Chris@559 1162 {
Chris@559 1163 // Set up the ALSA sequencer client.
Chris@565 1164 snd_seq_t *seq;
Chris@565 1165 int result = snd_seq_open( &seq, "default", SND_SEQ_OPEN_OUTPUT, SND_SEQ_NONBLOCK );
Chris@559 1166 if ( result < 0 ) {
Chris@559 1167 errorString_ = "RtMidiOut::initialize: error creating ALSA sequencer client object.";
Chris@559 1168 error( RtError::DRIVER_ERROR );
Chris@559 1169 }
Chris@559 1170
Chris@559 1171 // Set client name.
Chris@565 1172 snd_seq_set_client_name( seq, clientName.c_str() );
Chris@559 1173
Chris@559 1174 // Save our api-specific connection information.
Chris@559 1175 AlsaMidiData *data = (AlsaMidiData *) new AlsaMidiData;
Chris@559 1176 data->seq = seq;
Chris@559 1177 data->vport = -1;
Chris@559 1178 data->bufferSize = 32;
Chris@559 1179 data->coder = 0;
Chris@559 1180 data->buffer = 0;
Chris@559 1181 result = snd_midi_event_new( data->bufferSize, &data->coder );
Chris@559 1182 if ( result < 0 ) {
Chris@559 1183 delete data;
Chris@559 1184 errorString_ = "RtMidiOut::initialize: error initializing MIDI event parser!\n\n";
Chris@559 1185 error( RtError::DRIVER_ERROR );
Chris@559 1186 }
Chris@559 1187 data->buffer = (unsigned char *) malloc( data->bufferSize );
Chris@559 1188 if ( data->buffer == NULL ) {
Chris@559 1189 delete data;
Chris@559 1190 errorString_ = "RtMidiOut::initialize: error allocating buffer memory!\n\n";
Chris@559 1191 error( RtError::MEMORY_ERROR );
Chris@559 1192 }
Chris@559 1193 snd_midi_event_init( data->coder );
Chris@559 1194 apiData_ = (void *) data;
Chris@559 1195 }
Chris@559 1196
Chris@565 1197 void RtMidiOut :: openPort( unsigned int portNumber, const std::string portName )
Chris@559 1198 {
Chris@559 1199 if ( connected_ ) {
Chris@559 1200 errorString_ = "RtMidiOut::openPort: a valid connection already exists!";
Chris@559 1201 error( RtError::WARNING );
Chris@559 1202 return;
Chris@559 1203 }
Chris@559 1204
Chris@559 1205 unsigned int nSrc = this->getPortCount();
Chris@559 1206 if (nSrc < 1) {
Chris@559 1207 errorString_ = "RtMidiOut::openPort: no MIDI output sources found!";
Chris@559 1208 error( RtError::NO_DEVICES_FOUND );
Chris@559 1209 }
Chris@559 1210
Chris@565 1211 snd_seq_port_info_t *pinfo;
Chris@565 1212 snd_seq_port_info_alloca( &pinfo );
Chris@559 1213 std::ostringstream ost;
Chris@559 1214 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 1215 if ( portInfo( data->seq, pinfo, SND_SEQ_PORT_CAP_WRITE|SND_SEQ_PORT_CAP_SUBS_WRITE, (int) portNumber ) == 0 ) {
Chris@559 1216 ost << "RtMidiOut::openPort: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 1217 errorString_ = ost.str();
Chris@559 1218 error( RtError::INVALID_PARAMETER );
Chris@559 1219 }
Chris@559 1220
Chris@559 1221 snd_seq_addr_t sender, receiver;
Chris@559 1222 receiver.client = snd_seq_port_info_get_client( pinfo );
Chris@559 1223 receiver.port = snd_seq_port_info_get_port( pinfo );
Chris@559 1224 sender.client = snd_seq_client_id( data->seq );
Chris@559 1225
Chris@559 1226 if ( data->vport < 0 ) {
Chris@565 1227 data->vport = snd_seq_create_simple_port( data->seq, portName.c_str(),
Chris@559 1228 SND_SEQ_PORT_CAP_READ|SND_SEQ_PORT_CAP_SUBS_READ,
Chris@559 1229 SND_SEQ_PORT_TYPE_MIDI_GENERIC );
Chris@559 1230 if ( data->vport < 0 ) {
Chris@559 1231 errorString_ = "RtMidiOut::openPort: ALSA error creating output port.";
Chris@559 1232 error( RtError::DRIVER_ERROR );
Chris@559 1233 }
Chris@559 1234 }
Chris@559 1235
Chris@559 1236 sender.port = data->vport;
Chris@559 1237
Chris@559 1238 // Make subscription
Chris@559 1239 snd_seq_port_subscribe_malloc( &data->subscription );
Chris@559 1240 snd_seq_port_subscribe_set_sender(data->subscription, &sender);
Chris@559 1241 snd_seq_port_subscribe_set_dest(data->subscription, &receiver);
Chris@559 1242 snd_seq_port_subscribe_set_time_update(data->subscription, 1);
Chris@559 1243 snd_seq_port_subscribe_set_time_real(data->subscription, 1);
Chris@559 1244 if ( snd_seq_subscribe_port(data->seq, data->subscription) ) {
Chris@559 1245 errorString_ = "RtMidiOut::openPort: ALSA error making port connection.";
Chris@559 1246 error( RtError::DRIVER_ERROR );
Chris@559 1247 }
Chris@559 1248
Chris@559 1249 connected_ = true;
Chris@559 1250 }
Chris@559 1251
Chris@559 1252 void RtMidiOut :: closePort( void )
Chris@559 1253 {
Chris@559 1254 if ( connected_ ) {
Chris@559 1255 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 1256 snd_seq_unsubscribe_port( data->seq, data->subscription );
Chris@559 1257 snd_seq_port_subscribe_free( data->subscription );
Chris@559 1258 connected_ = false;
Chris@559 1259 }
Chris@559 1260 }
Chris@559 1261
Chris@559 1262 void RtMidiOut :: openVirtualPort( std::string portName )
Chris@559 1263 {
Chris@559 1264 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 1265 if ( data->vport < 0 ) {
Chris@559 1266 data->vport = snd_seq_create_simple_port( data->seq, portName.c_str(),
Chris@559 1267 SND_SEQ_PORT_CAP_READ|SND_SEQ_PORT_CAP_SUBS_READ,
Chris@559 1268 SND_SEQ_PORT_TYPE_MIDI_GENERIC );
Chris@559 1269
Chris@559 1270 if ( data->vport < 0 ) {
Chris@559 1271 errorString_ = "RtMidiOut::openVirtualPort: ALSA error creating virtual port.";
Chris@559 1272 error( RtError::DRIVER_ERROR );
Chris@559 1273 }
Chris@559 1274 }
Chris@559 1275 }
Chris@559 1276
Chris@559 1277 RtMidiOut :: ~RtMidiOut()
Chris@559 1278 {
Chris@559 1279 // Close a connection if it exists.
Chris@559 1280 closePort();
Chris@559 1281
Chris@559 1282 // Cleanup.
Chris@559 1283 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 1284 if ( data->vport >= 0 ) snd_seq_delete_port( data->seq, data->vport );
Chris@559 1285 if ( data->coder ) snd_midi_event_free( data->coder );
Chris@559 1286 if ( data->buffer ) free( data->buffer );
Chris@559 1287 snd_seq_close( data->seq );
Chris@559 1288 delete data;
Chris@559 1289 }
Chris@559 1290
Chris@559 1291 void RtMidiOut :: sendMessage( std::vector<unsigned char> *message )
Chris@559 1292 {
Chris@559 1293 int result;
Chris@559 1294 AlsaMidiData *data = static_cast<AlsaMidiData *> (apiData_);
Chris@559 1295 unsigned int nBytes = message->size();
Chris@559 1296 if ( nBytes > data->bufferSize ) {
Chris@559 1297 data->bufferSize = nBytes;
Chris@559 1298 result = snd_midi_event_resize_buffer ( data->coder, nBytes);
Chris@559 1299 if ( result != 0 ) {
Chris@559 1300 errorString_ = "RtMidiOut::sendMessage: ALSA error resizing MIDI event buffer.";
Chris@559 1301 error( RtError::DRIVER_ERROR );
Chris@559 1302 }
Chris@559 1303 free (data->buffer);
Chris@559 1304 data->buffer = (unsigned char *) malloc( data->bufferSize );
Chris@559 1305 if ( data->buffer == NULL ) {
Chris@559 1306 errorString_ = "RtMidiOut::initialize: error allocating buffer memory!\n\n";
Chris@559 1307 error( RtError::MEMORY_ERROR );
Chris@559 1308 }
Chris@559 1309 }
Chris@559 1310
Chris@559 1311 snd_seq_event_t ev;
Chris@559 1312 snd_seq_ev_clear(&ev);
Chris@559 1313 snd_seq_ev_set_source(&ev, data->vport);
Chris@559 1314 snd_seq_ev_set_subs(&ev);
Chris@559 1315 snd_seq_ev_set_direct(&ev);
Chris@559 1316 for ( unsigned int i=0; i<nBytes; i++ ) data->buffer[i] = message->at(i);
Chris@559 1317 result = snd_midi_event_encode( data->coder, data->buffer, (long)nBytes, &ev );
Chris@559 1318 if ( result < (int)nBytes ) {
Chris@559 1319 errorString_ = "RtMidiOut::sendMessage: event parsing error!";
Chris@559 1320 error( RtError::WARNING );
Chris@559 1321 return;
Chris@559 1322 }
Chris@559 1323
Chris@559 1324 // Send the event.
Chris@559 1325 result = snd_seq_event_output(data->seq, &ev);
Chris@559 1326 if ( result < 0 ) {
Chris@559 1327 errorString_ = "RtMidiOut::sendMessage: error sending MIDI message to port.";
Chris@559 1328 error( RtError::WARNING );
Chris@559 1329 }
Chris@559 1330 snd_seq_drain_output(data->seq);
Chris@559 1331 }
Chris@559 1332
Chris@559 1333 #endif // __LINUX_ALSA__
Chris@559 1334
Chris@559 1335
Chris@559 1336 //*********************************************************************//
Chris@559 1337 // API: IRIX MD
Chris@559 1338 //*********************************************************************//
Chris@559 1339
Chris@559 1340 // API information gleamed from:
Chris@559 1341 // http://techpubs.sgi.com/library/tpl/cgi-bin/getdoc.cgi?cmd=getdoc&coll=0650&db=man&fname=3%20mdIntro
Chris@559 1342
Chris@559 1343 // If the Makefile doesn't work, try the following:
Chris@559 1344 // CC -o midiinfo -LANG:std -D__IRIX_MD__ -I../ ../RtMidi.cpp midiinfo.cpp -lpthread -lmd
Chris@559 1345 // CC -o midiout -LANG:std -D__IRIX_MD__ -I../ ../RtMidi.cpp midiout.cpp -lpthread -lmd
Chris@559 1346 // CC -o qmidiin -LANG:std -D__IRIX_MD__ -I../ ../RtMidi.cpp qmidiin.cpp -lpthread -lmd
Chris@559 1347 // CC -o cmidiin -LANG:std -D__IRIX_MD__ -I../ ../RtMidi.cpp cmidiin.cpp -lpthread -lmd
Chris@559 1348
Chris@559 1349 #if defined(__IRIX_MD__)
Chris@559 1350
Chris@559 1351 #include <pthread.h>
Chris@559 1352 #include <sys/time.h>
Chris@559 1353 #include <unistd.h>
Chris@559 1354
Chris@559 1355 // Irix MIDI header file.
Chris@559 1356 #include <dmedia/midi.h>
Chris@559 1357
Chris@559 1358 // A structure to hold variables related to the IRIX API
Chris@559 1359 // implementation.
Chris@559 1360 struct IrixMidiData {
Chris@559 1361 MDport port;
Chris@559 1362 pthread_t thread;
Chris@559 1363 };
Chris@559 1364
Chris@559 1365 //*********************************************************************//
Chris@559 1366 // API: IRIX
Chris@559 1367 // Class Definitions: RtMidiIn
Chris@559 1368 //*********************************************************************//
Chris@559 1369
Chris@559 1370 extern "C" void *irixMidiHandler( void *ptr )
Chris@559 1371 {
Chris@559 1372 RtMidiIn::RtMidiInData *data = static_cast<RtMidiIn::RtMidiInData *> (ptr);
Chris@559 1373 IrixMidiData *apiData = static_cast<IrixMidiData *> (data->apiData);
Chris@559 1374
Chris@559 1375 bool continueSysex = false;
Chris@559 1376 unsigned char status;
Chris@559 1377 unsigned short size;
Chris@559 1378 MDevent event;
Chris@559 1379 int fd = mdGetFd( apiData->port );
Chris@559 1380 if ( fd < 0 ) {
Chris@559 1381 data->doInput = false;
Chris@559 1382 std::cerr << "\nRtMidiIn::irixMidiHandler: error getting port descriptor!\n\n";
Chris@559 1383 return 0;
Chris@559 1384 }
Chris@559 1385
Chris@559 1386 fd_set mask, rmask;
Chris@559 1387 FD_ZERO( &mask );
Chris@559 1388 FD_SET( fd, &mask );
Chris@559 1389 struct timeval timeout = {0, 0};
Chris@559 1390 RtMidiIn::MidiMessage message;
Chris@559 1391 int result;
Chris@559 1392
Chris@559 1393 while ( data->doInput ) {
Chris@559 1394
Chris@559 1395 rmask = mask;
Chris@559 1396 timeout.tv_sec = 0;
Chris@559 1397 timeout.tv_usec = 0;
Chris@559 1398 if ( select( fd+1, &rmask, NULL, NULL, &timeout ) <= 0 ) {
Chris@559 1399 // No data pending ... sleep a bit.
Chris@559 1400 usleep( 1000 );
Chris@559 1401 continue;
Chris@559 1402 }
Chris@559 1403
Chris@559 1404 // If here, there should be data.
Chris@559 1405 result = mdReceive( apiData->port, &event, 1);
Chris@559 1406 if ( result <= 0 ) {
Chris@559 1407 std::cerr << "\nRtMidiIn::irixMidiHandler: MIDI input read error!\n\n";
Chris@559 1408 continue;
Chris@559 1409 }
Chris@559 1410
Chris@559 1411 message.timeStamp = event.stamp * 0.000000001;
Chris@559 1412
Chris@559 1413 size = 0;
Chris@559 1414 status = event.msg[0];
Chris@559 1415 if ( !(status & 0x80) ) continue;
Chris@559 1416 if ( status == 0xF0 ) {
Chris@559 1417 // Sysex message ... can be segmented across multiple messages.
Chris@559 1418 if ( !(data->ignoreFlags & 0x01) ) {
Chris@559 1419 if ( continueSysex ) {
Chris@559 1420 // We have a continuing, segmented sysex message. Append
Chris@559 1421 // the new bytes to our existing message.
Chris@559 1422 for ( int i=0; i<event.msglen; i++ )
Chris@559 1423 message.bytes.push_back( event.sysexmsg[i] );
Chris@559 1424 if ( event.sysexmsg[event.msglen-1] == 0xF7 ) continueSysex = false;
Chris@559 1425 if ( !continueSysex ) {
Chris@559 1426 // If not a continuing sysex message, invoke the user callback function or queue the message.
Chris@559 1427 if ( data->usingCallback && message.bytes.size() > 0 ) {
Chris@559 1428 RtMidiIn::RtMidiCallback callback = (RtMidiIn::RtMidiCallback) data->userCallback;
Chris@559 1429 callback( message.timeStamp, &message.bytes, data->userData );
Chris@559 1430 }
Chris@559 1431 else {
Chris@559 1432 // As long as we haven't reached our queue size limit, push the message.
Chris@559 1433 if ( data->queueLimit > data->queue.size() )
Chris@559 1434 data->queue.push( message );
Chris@559 1435 else
Chris@559 1436 std::cerr << "\nRtMidiIn: message queue limit reached!!\n\n";
Chris@559 1437 }
Chris@559 1438 message.bytes.clear();
Chris@559 1439 }
Chris@559 1440 }
Chris@559 1441 }
Chris@559 1442 mdFree( NULL );
Chris@559 1443 continue;
Chris@559 1444 }
Chris@559 1445 else if ( status < 0xC0 ) size = 3;
Chris@559 1446 else if ( status < 0xE0 ) size = 2;
Chris@559 1447 else if ( status < 0xF0 ) size = 3;
Chris@559 1448 else if ( status < 0xF3 ) {
Chris@559 1449 if ( status == 0xF1 && !(data->ignoreFlags & 0x02) ) {
Chris@559 1450 // A MIDI time code message and we're not ignoring it.
Chris@559 1451 size = 3;
Chris@559 1452 }
Chris@559 1453 }
Chris@559 1454 else if ( status == 0xF3 ) size = 2;
Chris@559 1455 else if ( status == 0xF8 ) {
Chris@559 1456 if ( !(data->ignoreFlags & 0x02) ) {
Chris@559 1457 // A MIDI timing tick message and we're not ignoring it.
Chris@559 1458 size = 1;
Chris@559 1459 }
Chris@559 1460 }
Chris@559 1461 else if ( status == 0xFE ) { // MIDI active sensing
Chris@559 1462 if ( !(data->ignoreFlags & 0x04) )
Chris@559 1463 size = 1;
Chris@559 1464 }
Chris@559 1465 else size = 1;
Chris@559 1466
Chris@559 1467 // Copy the MIDI data to our vector.
Chris@559 1468 if ( size ) {
Chris@559 1469 message.bytes.assign( &event.msg[0], &event.msg[size] );
Chris@559 1470 // Invoke the user callback function or queue the message.
Chris@559 1471 if ( data->usingCallback ) {
Chris@559 1472 RtMidiIn::RtMidiCallback callback = (RtMidiIn::RtMidiCallback) data->userCallback;
Chris@559 1473 callback( message.timeStamp, &message.bytes, data->userData );
Chris@559 1474 }
Chris@559 1475 else {
Chris@559 1476 // As long as we haven't reached our queue size limit, push the message.
Chris@559 1477 if ( data->queueLimit > data->queue.size() )
Chris@559 1478 data->queue.push( message );
Chris@559 1479 else
Chris@559 1480 std::cerr << "\nRtMidiIn: message queue limit reached!!\n\n";
Chris@559 1481 }
Chris@559 1482 message.bytes.clear();
Chris@559 1483 }
Chris@559 1484 }
Chris@559 1485
Chris@559 1486 return 0;
Chris@559 1487 }
Chris@559 1488
Chris@565 1489 void RtMidiIn :: initialize( const std::string& /*clientName*/ )
Chris@559 1490 {
Chris@559 1491 // Initialize the Irix MIDI system. At the moment, we will not
Chris@559 1492 // worry about a return value of zero (ports) because there is a
Chris@559 1493 // chance the user could plug something in after instantiation.
Chris@559 1494 int nPorts = mdInit();
Chris@559 1495
Chris@559 1496 // Create our api-specific connection information.
Chris@559 1497 IrixMidiData *data = (IrixMidiData *) new IrixMidiData;
Chris@559 1498 apiData_ = (void *) data;
Chris@559 1499 inputData_.apiData = (void *) data;
Chris@559 1500 }
Chris@559 1501
Chris@565 1502 void RtMidiIn :: openPort( unsigned int portNumber, const std::string /*portName*/ )
Chris@559 1503 {
Chris@559 1504 if ( connected_ ) {
Chris@559 1505 errorString_ = "RtMidiIn::openPort: a valid connection already exists!";
Chris@559 1506 error( RtError::WARNING );
Chris@559 1507 return;
Chris@559 1508 }
Chris@559 1509
Chris@559 1510 int nPorts = mdInit();
Chris@559 1511 if (nPorts < 1) {
Chris@559 1512 errorString_ = "RtMidiIn::openPort: no Irix MIDI input sources found!";
Chris@559 1513 error( RtError::NO_DEVICES_FOUND );
Chris@559 1514 }
Chris@559 1515
Chris@559 1516 std::ostringstream ost;
Chris@559 1517 if ( portNumber >= nPorts ) {
Chris@559 1518 ost << "RtMidiIn::openPort: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 1519 errorString_ = ost.str();
Chris@559 1520 error( RtError::INVALID_PARAMETER );
Chris@559 1521 }
Chris@559 1522
Chris@559 1523 IrixMidiData *data = static_cast<IrixMidiData *> (apiData_);
Chris@559 1524 data->port = mdOpenInPort( mdGetName(portNumber) );
Chris@559 1525 if ( data->port == NULL ) {
Chris@559 1526 ost << "RtMidiIn::openPort: Irix error opening the port (" << portNumber << ").";
Chris@559 1527 errorString_ = ost.str();
Chris@559 1528 error( RtError::DRIVER_ERROR );
Chris@559 1529 }
Chris@559 1530 mdSetStampMode(data->port, MD_DELTASTAMP);
Chris@559 1531
Chris@559 1532 // Start our MIDI input thread.
Chris@559 1533 pthread_attr_t attr;
Chris@559 1534 pthread_attr_init(&attr);
Chris@559 1535 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
Chris@559 1536 pthread_attr_setschedpolicy(&attr, SCHED_RR);
Chris@559 1537
Chris@559 1538 inputData_.doInput = true;
Chris@559 1539 int err = pthread_create(&data->thread, &attr, irixMidiHandler, &inputData_);
Chris@559 1540 pthread_attr_destroy(&attr);
Chris@559 1541 if (err) {
Chris@559 1542 mdClosePort( data->port );
Chris@559 1543 inputData_.doInput = false;
Chris@559 1544 errorString_ = "RtMidiIn::openPort: error starting MIDI input thread!";
Chris@559 1545 error( RtError::THREAD_ERROR );
Chris@559 1546 }
Chris@559 1547
Chris@559 1548 connected_ = true;
Chris@559 1549 }
Chris@559 1550
Chris@559 1551 void RtMidiIn :: openVirtualPort( std::string portName )
Chris@559 1552 {
Chris@559 1553 // This function cannot be implemented for the Irix MIDI API.
Chris@559 1554 errorString_ = "RtMidiIn::openVirtualPort: cannot be implemented in Irix MIDI API!";
Chris@559 1555 error( RtError::WARNING );
Chris@559 1556 }
Chris@559 1557
Chris@559 1558 void RtMidiIn :: closePort( void )
Chris@559 1559 {
Chris@559 1560 if ( connected_ ) {
Chris@559 1561 IrixMidiData *data = static_cast<IrixMidiData *> (apiData_);
Chris@559 1562 mdClosePort( data->port );
Chris@559 1563 connected_ = false;
Chris@559 1564
Chris@559 1565 // Shutdown the input thread.
Chris@559 1566 inputData_.doInput = false;
Chris@559 1567 pthread_join( data->thread, NULL );
Chris@559 1568 }
Chris@559 1569 }
Chris@559 1570
Chris@559 1571 RtMidiIn :: ~RtMidiIn()
Chris@559 1572 {
Chris@559 1573 // Close a connection if it exists.
Chris@559 1574 closePort();
Chris@559 1575
Chris@559 1576 // Cleanup.
Chris@559 1577 IrixMidiData *data = static_cast<IrixMidiData *> (apiData_);
Chris@559 1578 delete data;
Chris@559 1579 }
Chris@559 1580
Chris@559 1581 unsigned int RtMidiIn :: getPortCount()
Chris@559 1582 {
Chris@559 1583 int nPorts = mdInit();
Chris@559 1584 if ( nPorts >= 0 ) return nPorts;
Chris@559 1585 else return 0;
Chris@559 1586 }
Chris@559 1587
Chris@559 1588 std::string RtMidiIn :: getPortName( unsigned int portNumber )
Chris@559 1589 {
Chris@559 1590 int nPorts = mdInit();
Chris@559 1591
Chris@559 1592 std::ostringstream ost;
Chris@559 1593 if ( portNumber >= nPorts ) {
Chris@559 1594 ost << "RtMidiIn::getPortName: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 1595 errorString_ = ost.str();
Chris@559 1596 error( RtError::INVALID_PARAMETER );
Chris@559 1597 }
Chris@559 1598
Chris@559 1599 std::string stringName = std::string( mdGetName( portNumber ) );
Chris@559 1600 return stringName;
Chris@559 1601 }
Chris@559 1602
Chris@559 1603 //*********************************************************************//
Chris@559 1604 // API: IRIX MD
Chris@559 1605 // Class Definitions: RtMidiOut
Chris@559 1606 //*********************************************************************//
Chris@559 1607
Chris@559 1608 unsigned int RtMidiOut :: getPortCount()
Chris@559 1609 {
Chris@559 1610 int nPorts = mdInit();
Chris@559 1611 if ( nPorts >= 0 ) return nPorts;
Chris@559 1612 else return 0;
Chris@559 1613 }
Chris@559 1614
Chris@559 1615 std::string RtMidiOut :: getPortName( unsigned int portNumber )
Chris@559 1616 {
Chris@559 1617 int nPorts = mdInit();
Chris@559 1618
Chris@559 1619 std::ostringstream ost;
Chris@559 1620 if ( portNumber >= nPorts ) {
Chris@559 1621 ost << "RtMidiIn::getPortName: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 1622 errorString_ = ost.str();
Chris@559 1623 error( RtError::INVALID_PARAMETER );
Chris@559 1624 }
Chris@559 1625
Chris@559 1626 std::string stringName = std::string( mdGetName( portNumber ) );
Chris@559 1627 return stringName;
Chris@559 1628 }
Chris@559 1629
Chris@565 1630 void RtMidiOut :: initialize( const std::string& /*clientName*/ )
Chris@559 1631 {
Chris@559 1632 // Initialize the Irix MIDI system. At the moment, we will not
Chris@559 1633 // worry about a return value of zero (ports) because there is a
Chris@559 1634 // chance the user could plug something in after instantiation.
Chris@559 1635 int nPorts = mdInit();
Chris@559 1636
Chris@559 1637 // Create our api-specific connection information.
Chris@559 1638 IrixMidiData *data = (IrixMidiData *) new IrixMidiData;
Chris@559 1639 apiData_ = (void *) data;
Chris@559 1640 }
Chris@559 1641
Chris@565 1642 void RtMidiOut :: openPort( unsigned int portNumber, const std::string /*portName*/ )
Chris@559 1643 {
Chris@559 1644 if ( connected_ ) {
Chris@559 1645 errorString_ = "RtMidiOut::openPort: a valid connection already exists!";
Chris@559 1646 error( RtError::WARNING );
Chris@559 1647 return;
Chris@559 1648 }
Chris@559 1649
Chris@559 1650 int nPorts = mdInit();
Chris@559 1651 if (nPorts < 1) {
Chris@559 1652 errorString_ = "RtMidiOut::openPort: no Irix MIDI output sources found!";
Chris@559 1653 error( RtError::NO_DEVICES_FOUND );
Chris@559 1654 }
Chris@559 1655
Chris@559 1656 std::ostringstream ost;
Chris@559 1657 if ( portNumber >= nPorts ) {
Chris@559 1658 ost << "RtMidiOut::openPort: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 1659 errorString_ = ost.str();
Chris@559 1660 error( RtError::INVALID_PARAMETER );
Chris@559 1661 }
Chris@559 1662
Chris@559 1663 IrixMidiData *data = static_cast<IrixMidiData *> (apiData_);
Chris@559 1664 data->port = mdOpenOutPort( mdGetName(portNumber) );
Chris@559 1665 if ( data->port == NULL ) {
Chris@559 1666 ost << "RtMidiOut::openPort: Irix error opening the port (" << portNumber << ").";
Chris@559 1667 errorString_ = ost.str();
Chris@559 1668 error( RtError::DRIVER_ERROR );
Chris@559 1669 }
Chris@559 1670 mdSetStampMode(data->port, MD_NOSTAMP);
Chris@559 1671
Chris@559 1672 connected_ = true;
Chris@559 1673 }
Chris@559 1674
Chris@559 1675 void RtMidiOut :: closePort( void )
Chris@559 1676 {
Chris@559 1677 if ( connected_ ) {
Chris@559 1678 IrixMidiData *data = static_cast<IrixMidiData *> (apiData_);
Chris@559 1679 mdClosePort( data->port );
Chris@559 1680 connected_ = false;
Chris@559 1681 }
Chris@559 1682 }
Chris@559 1683
Chris@559 1684 void RtMidiOut :: openVirtualPort( std::string portName )
Chris@559 1685 {
Chris@559 1686 // This function cannot be implemented for the Irix MIDI API.
Chris@559 1687 errorString_ = "RtMidiOut::openVirtualPort: cannot be implemented in Irix MIDI API!";
Chris@559 1688 error( RtError::WARNING );
Chris@559 1689 }
Chris@559 1690
Chris@559 1691 RtMidiOut :: ~RtMidiOut()
Chris@559 1692 {
Chris@559 1693 // Close a connection if it exists.
Chris@559 1694 closePort();
Chris@559 1695
Chris@559 1696 // Cleanup.
Chris@559 1697 IrixMidiData *data = static_cast<IrixMidiData *> (apiData_);
Chris@559 1698 delete data;
Chris@559 1699 }
Chris@559 1700
Chris@559 1701 void RtMidiOut :: sendMessage( std::vector<unsigned char> *message )
Chris@559 1702 {
Chris@559 1703 int result;
Chris@559 1704 MDevent event;
Chris@559 1705 IrixMidiData *data = static_cast<IrixMidiData *> (apiData_);
Chris@559 1706 char *buffer = 0;
Chris@559 1707
Chris@559 1708 unsigned int nBytes = message->size();
Chris@559 1709 if ( nBytes == 0 ) return;
Chris@559 1710 event.stamp = 0;
Chris@559 1711 if ( message->at(0) == 0xF0 ) {
Chris@559 1712 if ( nBytes < 3 ) return; // check for bogus sysex
Chris@559 1713 event.msg[0] = 0xF0;
Chris@559 1714 event.msglen = nBytes;
Chris@559 1715 buffer = (char *) malloc( nBytes );
Chris@559 1716 for ( int i=0; i<nBytes; i++ ) buffer[i] = message->at(i);
Chris@559 1717 event.sysexmsg = buffer;
Chris@559 1718 }
Chris@559 1719 else {
Chris@559 1720 for ( int i=0; i<nBytes; i++ )
Chris@559 1721 event.msg[i] = message->at(i);
Chris@559 1722 }
Chris@559 1723
Chris@559 1724 // Send the event.
Chris@559 1725 result = mdSend( data->port, &event, 1 );
Chris@559 1726 if ( buffer ) free( buffer );
Chris@559 1727 if ( result < 1 ) {
Chris@559 1728 errorString_ = "RtMidiOut::sendMessage: IRIX error sending MIDI message!";
Chris@559 1729 error( RtError::WARNING );
Chris@559 1730 return;
Chris@559 1731 }
Chris@559 1732 }
Chris@559 1733
Chris@559 1734 #endif // __IRIX_MD__
Chris@559 1735
Chris@559 1736 //*********************************************************************//
Chris@559 1737 // API: Windows Multimedia Library (MM)
Chris@559 1738 //*********************************************************************//
Chris@559 1739
Chris@559 1740 // API information deciphered from:
Chris@559 1741 // - http://msdn.microsoft.com/library/default.asp?url=/library/en-us/multimed/htm/_win32_midi_reference.asp
Chris@559 1742
Chris@559 1743 // Thanks to Jean-Baptiste Berruchon for the sysex code.
Chris@559 1744
Chris@559 1745 #if defined(__WINDOWS_MM__)
Chris@559 1746
Chris@559 1747 // The Windows MM API is based on the use of a callback function for
Chris@559 1748 // MIDI input. We convert the system specific time stamps to delta
Chris@559 1749 // time values.
Chris@559 1750
Chris@559 1751 // Windows MM MIDI header files.
Chris@559 1752 #include <windows.h>
Chris@559 1753 #include <mmsystem.h>
Chris@559 1754
Chris@559 1755 // A structure to hold variables related to the CoreMIDI API
Chris@559 1756 // implementation.
Chris@559 1757 struct WinMidiData {
Chris@559 1758 HMIDIIN inHandle; // Handle to Midi Input Device
Chris@559 1759 HMIDIOUT outHandle; // Handle to Midi Output Device
Chris@559 1760 DWORD lastTime;
Chris@559 1761 RtMidiIn::MidiMessage message;
Chris@559 1762 LPMIDIHDR sysexBuffer;
Chris@559 1763 };
Chris@559 1764
Chris@559 1765 #define RT_SYSEX_BUFFER_SIZE 1024
Chris@559 1766
Chris@559 1767 //*********************************************************************//
Chris@559 1768 // API: Windows MM
Chris@559 1769 // Class Definitions: RtMidiIn
Chris@559 1770 //*********************************************************************//
Chris@559 1771
Chris@559 1772 static void CALLBACK midiInputCallback( HMIDIOUT hmin,
Chris@559 1773 UINT inputStatus,
Chris@559 1774 DWORD instancePtr,
Chris@559 1775 DWORD midiMessage,
Chris@559 1776 DWORD timestamp )
Chris@559 1777 {
Chris@559 1778 if ( inputStatus != MIM_DATA && inputStatus != MIM_LONGDATA ) return;
Chris@559 1779
Chris@559 1780 //RtMidiIn::RtMidiInData *data = static_cast<RtMidiIn::RtMidiInData *> (instancePtr);
Chris@559 1781 RtMidiIn::RtMidiInData *data = (RtMidiIn::RtMidiInData *)instancePtr;
Chris@559 1782 WinMidiData *apiData = static_cast<WinMidiData *> (data->apiData);
Chris@559 1783
Chris@559 1784 // Calculate time stamp.
Chris@559 1785 apiData->message.timeStamp = 0.0;
Chris@559 1786 if ( data->firstMessage == true ) data->firstMessage = false;
Chris@559 1787 else apiData->message.timeStamp = (double) ( timestamp - apiData->lastTime ) * 0.001;
Chris@559 1788 apiData->lastTime = timestamp;
Chris@559 1789
Chris@559 1790 if ( inputStatus == MIM_DATA ) { // Channel or system message
Chris@559 1791
Chris@559 1792 // Make sure the first byte is a status byte.
Chris@559 1793 unsigned char status = (unsigned char) (midiMessage & 0x000000FF);
Chris@559 1794 if ( !(status & 0x80) ) return;
Chris@559 1795
Chris@559 1796 // Determine the number of bytes in the MIDI message.
Chris@559 1797 unsigned short nBytes = 1;
Chris@559 1798 if ( status < 0xC0 ) nBytes = 3;
Chris@559 1799 else if ( status < 0xE0 ) nBytes = 2;
Chris@559 1800 else if ( status < 0xF0 ) nBytes = 3;
Chris@559 1801 else if ( status < 0xF3 ) {
Chris@559 1802 // A MIDI time code message and we're ignoring it.
Chris@559 1803 if ( status == 0xF1 && (data->ignoreFlags & 0x02) ) return;
Chris@559 1804 nBytes = 3;
Chris@559 1805 }
Chris@559 1806 else if ( status == 0xF3 ) nBytes = 2;
Chris@559 1807 else if ( status == 0xF8 && (data->ignoreFlags & 0x02) ) {
Chris@559 1808 // A MIDI timing tick message and we're ignoring it.
Chris@559 1809 return;
Chris@559 1810 }
Chris@559 1811 else if ( status == 0xFE && (data->ignoreFlags & 0x04) ) {
Chris@559 1812 // A MIDI active sensing message and we're ignoring it.
Chris@559 1813 return;
Chris@559 1814 }
Chris@559 1815
Chris@559 1816 // Copy bytes to our MIDI message.
Chris@559 1817 unsigned char *ptr = (unsigned char *) &midiMessage;
Chris@559 1818 for ( int i=0; i<nBytes; i++ ) apiData->message.bytes.push_back( *ptr++ );
Chris@559 1819 }
Chris@565 1820 else { // Sysex message ( MIM_LONGDATA )
Chris@565 1821 MIDIHDR *sysex = ( MIDIHDR *) midiMessage;
Chris@565 1822 if ( !( data->ignoreFlags & 0x01 ) ) {
Chris@565 1823 // Sysex message and we're not ignoring it
Chris@565 1824 for ( int i=0; i<(int)sysex->dwBytesRecorded; i++ )
Chris@565 1825 apiData->message.bytes.push_back( sysex->lpData[i] );
Chris@565 1826 }
Chris@559 1827
Chris@565 1828 // The WinMM API requires that the sysex buffer be requeued after
Chris@565 1829 // input of each sysex message. Even if we are ignoring sysex
Chris@565 1830 // messages, we still need to requeue the buffer in case the user
Chris@565 1831 // decides to not ignore sysex messages in the future. However,
Chris@565 1832 // it seems that WinMM calls this function with an empty sysex
Chris@565 1833 // buffer when an application closes and in this case, we should
Chris@565 1834 // avoid requeueing it, else the computer suddenly reboots after
Chris@565 1835 // one or two minutes.
Chris@559 1836 if ( apiData->sysexBuffer->dwBytesRecorded > 0 ) {
Chris@565 1837 //if ( sysex->dwBytesRecorded > 0 ) {
Chris@559 1838 MMRESULT result = midiInAddBuffer( apiData->inHandle, apiData->sysexBuffer, sizeof(MIDIHDR) );
Chris@559 1839 if ( result != MMSYSERR_NOERROR )
Chris@559 1840 std::cerr << "\nRtMidiIn::midiInputCallback: error sending sysex to Midi device!!\n\n";
Chris@565 1841
Chris@565 1842 if ( data->ignoreFlags & 0x01 ) return;
Chris@559 1843 }
Chris@565 1844 else return;
Chris@559 1845 }
Chris@559 1846
Chris@559 1847 if ( data->usingCallback ) {
Chris@559 1848 RtMidiIn::RtMidiCallback callback = (RtMidiIn::RtMidiCallback) data->userCallback;
Chris@559 1849 callback( apiData->message.timeStamp, &apiData->message.bytes, data->userData );
Chris@559 1850 }
Chris@559 1851 else {
Chris@559 1852 // As long as we haven't reached our queue size limit, push the message.
Chris@559 1853 if ( data->queueLimit > data->queue.size() )
Chris@559 1854 data->queue.push( apiData->message );
Chris@559 1855 else
Chris@559 1856 std::cerr << "\nRtMidiIn: message queue limit reached!!\n\n";
Chris@559 1857 }
Chris@559 1858
Chris@565 1859 // Clear the vector for the next input message.
Chris@559 1860 apiData->message.bytes.clear();
Chris@559 1861 }
Chris@559 1862
Chris@565 1863 void RtMidiIn :: initialize( const std::string& /*clientName*/ )
Chris@559 1864 {
Chris@559 1865 // We'll issue a warning here if no devices are available but not
Chris@559 1866 // throw an error since the user can plugin something later.
Chris@559 1867 unsigned int nDevices = midiInGetNumDevs();
Chris@559 1868 if ( nDevices == 0 ) {
Chris@559 1869 errorString_ = "RtMidiIn::initialize: no MIDI input devices currently available.";
Chris@559 1870 error( RtError::WARNING );
Chris@559 1871 }
Chris@559 1872
Chris@559 1873 // Save our api-specific connection information.
Chris@559 1874 WinMidiData *data = (WinMidiData *) new WinMidiData;
Chris@559 1875 apiData_ = (void *) data;
Chris@559 1876 inputData_.apiData = (void *) data;
Chris@559 1877 data->message.bytes.clear(); // needs to be empty for first input message
Chris@559 1878 }
Chris@559 1879
Chris@565 1880 void RtMidiIn :: openPort( unsigned int portNumber, const std::string /*portName*/ )
Chris@559 1881 {
Chris@559 1882 if ( connected_ ) {
Chris@559 1883 errorString_ = "RtMidiIn::openPort: a valid connection already exists!";
Chris@559 1884 error( RtError::WARNING );
Chris@559 1885 return;
Chris@559 1886 }
Chris@559 1887
Chris@559 1888 unsigned int nDevices = midiInGetNumDevs();
Chris@559 1889 if (nDevices == 0) {
Chris@559 1890 errorString_ = "RtMidiIn::openPort: no MIDI input sources found!";
Chris@559 1891 error( RtError::NO_DEVICES_FOUND );
Chris@559 1892 }
Chris@559 1893
Chris@559 1894 std::ostringstream ost;
Chris@559 1895 if ( portNumber >= nDevices ) {
Chris@559 1896 ost << "RtMidiIn::openPort: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 1897 errorString_ = ost.str();
Chris@559 1898 error( RtError::INVALID_PARAMETER );
Chris@559 1899 }
Chris@559 1900
Chris@559 1901 WinMidiData *data = static_cast<WinMidiData *> (apiData_);
Chris@559 1902 MMRESULT result = midiInOpen( &data->inHandle,
Chris@559 1903 portNumber,
Chris@559 1904 (DWORD)&midiInputCallback,
Chris@559 1905 (DWORD)&inputData_,
Chris@559 1906 CALLBACK_FUNCTION );
Chris@559 1907 if ( result != MMSYSERR_NOERROR ) {
Chris@559 1908 errorString_ = "RtMidiIn::openPort: error creating Windows MM MIDI input port.";
Chris@559 1909 error( RtError::DRIVER_ERROR );
Chris@559 1910 }
Chris@559 1911
Chris@559 1912 // Allocate and init the sysex buffer.
Chris@559 1913 data->sysexBuffer = (MIDIHDR*) new char[ sizeof(MIDIHDR) ];
Chris@565 1914 data->sysexBuffer->lpData = new char[ RT_SYSEX_BUFFER_SIZE ];
Chris@565 1915 data->sysexBuffer->dwBufferLength = RT_SYSEX_BUFFER_SIZE;
Chris@559 1916 data->sysexBuffer->dwFlags = 0;
Chris@559 1917
Chris@559 1918 result = midiInPrepareHeader( data->inHandle, data->sysexBuffer, sizeof(MIDIHDR) );
Chris@559 1919 if ( result != MMSYSERR_NOERROR ) {
Chris@559 1920 midiInClose( data->inHandle );
Chris@559 1921 errorString_ = "RtMidiIn::openPort: error starting Windows MM MIDI input port (PrepareHeader).";
Chris@559 1922 error( RtError::DRIVER_ERROR );
Chris@559 1923 }
Chris@559 1924
Chris@559 1925 // Register the buffer.
Chris@559 1926 result = midiInAddBuffer( data->inHandle, data->sysexBuffer, sizeof(MIDIHDR) );
Chris@559 1927 if ( result != MMSYSERR_NOERROR ) {
Chris@559 1928 midiInClose( data->inHandle );
Chris@559 1929 errorString_ = "RtMidiIn::openPort: error starting Windows MM MIDI input port (AddBuffer).";
Chris@559 1930 error( RtError::DRIVER_ERROR );
Chris@559 1931 }
Chris@559 1932
Chris@559 1933 result = midiInStart( data->inHandle );
Chris@559 1934 if ( result != MMSYSERR_NOERROR ) {
Chris@559 1935 midiInClose( data->inHandle );
Chris@559 1936 errorString_ = "RtMidiIn::openPort: error starting Windows MM MIDI input port.";
Chris@559 1937 error( RtError::DRIVER_ERROR );
Chris@559 1938 }
Chris@559 1939
Chris@559 1940 connected_ = true;
Chris@559 1941 }
Chris@559 1942
Chris@559 1943 void RtMidiIn :: openVirtualPort( std::string portName )
Chris@559 1944 {
Chris@559 1945 // This function cannot be implemented for the Windows MM MIDI API.
Chris@559 1946 errorString_ = "RtMidiIn::openVirtualPort: cannot be implemented in Windows MM MIDI API!";
Chris@559 1947 error( RtError::WARNING );
Chris@559 1948 }
Chris@559 1949
Chris@559 1950 void RtMidiIn :: closePort( void )
Chris@559 1951 {
Chris@559 1952 if ( connected_ ) {
Chris@559 1953 WinMidiData *data = static_cast<WinMidiData *> (apiData_);
Chris@559 1954 midiInReset( data->inHandle );
Chris@559 1955 midiInStop( data->inHandle );
Chris@559 1956
Chris@559 1957 int result = midiInUnprepareHeader(data->inHandle, data->sysexBuffer, sizeof(MIDIHDR));
Chris@559 1958 delete [] data->sysexBuffer->lpData;
Chris@559 1959 delete [] data->sysexBuffer;
Chris@559 1960 if ( result != MMSYSERR_NOERROR ) {
Chris@559 1961 midiInClose( data->inHandle );
Chris@559 1962 errorString_ = "RtMidiIn::openPort: error closing Windows MM MIDI input port (midiInUnprepareHeader).";
Chris@559 1963 error( RtError::DRIVER_ERROR );
Chris@559 1964 }
Chris@559 1965
Chris@559 1966 midiInClose( data->inHandle );
Chris@559 1967 connected_ = false;
Chris@559 1968 }
Chris@559 1969 }
Chris@559 1970
Chris@559 1971 RtMidiIn :: ~RtMidiIn()
Chris@559 1972 {
Chris@559 1973 // Close a connection if it exists.
Chris@559 1974 closePort();
Chris@559 1975
Chris@559 1976 // Cleanup.
Chris@559 1977 WinMidiData *data = static_cast<WinMidiData *> (apiData_);
Chris@559 1978 delete data;
Chris@559 1979 }
Chris@559 1980
Chris@559 1981 unsigned int RtMidiIn :: getPortCount()
Chris@559 1982 {
Chris@559 1983 return midiInGetNumDevs();
Chris@559 1984 }
Chris@559 1985
Chris@559 1986 std::string RtMidiIn :: getPortName( unsigned int portNumber )
Chris@559 1987 {
Chris@559 1988 unsigned int nDevices = midiInGetNumDevs();
Chris@559 1989 if ( portNumber >= nDevices ) {
Chris@559 1990 std::ostringstream ost;
Chris@559 1991 ost << "RtMidiIn::getPortName: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 1992 errorString_ = ost.str();
Chris@559 1993 error( RtError::INVALID_PARAMETER );
Chris@559 1994 }
Chris@559 1995
Chris@559 1996 MIDIINCAPS deviceCaps;
Chris@559 1997 midiInGetDevCaps( portNumber, &deviceCaps, sizeof(MIDIINCAPS));
Chris@559 1998
Chris@559 1999 // For some reason, we need to copy character by character with
Chris@559 2000 // UNICODE (thanks to Eduardo Coutinho!).
Chris@559 2001 //std::string stringName = std::string( deviceCaps.szPname );
Chris@559 2002 char nameString[MAXPNAMELEN];
Chris@559 2003 for( int i=0; i<MAXPNAMELEN; i++ )
Chris@559 2004 nameString[i] = (char)( deviceCaps.szPname[i] );
Chris@559 2005
Chris@559 2006 std::string stringName( nameString );
Chris@559 2007 return stringName;
Chris@559 2008 }
Chris@559 2009
Chris@559 2010 //*********************************************************************//
Chris@559 2011 // API: Windows MM
Chris@559 2012 // Class Definitions: RtMidiOut
Chris@559 2013 //*********************************************************************//
Chris@559 2014
Chris@559 2015 unsigned int RtMidiOut :: getPortCount()
Chris@559 2016 {
Chris@559 2017 return midiOutGetNumDevs();
Chris@559 2018 }
Chris@559 2019
Chris@559 2020 std::string RtMidiOut :: getPortName( unsigned int portNumber )
Chris@559 2021 {
Chris@559 2022 unsigned int nDevices = midiOutGetNumDevs();
Chris@559 2023 if ( portNumber >= nDevices ) {
Chris@559 2024 std::ostringstream ost;
Chris@559 2025 ost << "RtMidiOut::getPortName: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 2026 errorString_ = ost.str();
Chris@559 2027 error( RtError::INVALID_PARAMETER );
Chris@559 2028 }
Chris@559 2029
Chris@559 2030 MIDIOUTCAPS deviceCaps;
Chris@559 2031 midiOutGetDevCaps( portNumber, &deviceCaps, sizeof(MIDIOUTCAPS));
Chris@559 2032
Chris@559 2033 // For some reason, we need to copy character by character with
Chris@559 2034 // UNICODE (thanks to Eduardo Coutinho!).
Chris@559 2035 //std::string stringName = std::string( deviceCaps.szPname );
Chris@559 2036 char nameString[MAXPNAMELEN];
Chris@559 2037 for( int i=0; i<MAXPNAMELEN; i++ )
Chris@559 2038 nameString[i] = (char)( deviceCaps.szPname[i] );
Chris@559 2039
Chris@559 2040 std::string stringName( nameString );
Chris@559 2041 return stringName;
Chris@559 2042 }
Chris@559 2043
Chris@565 2044 void RtMidiOut :: initialize( const std::string& /*clientName*/ )
Chris@559 2045 {
Chris@559 2046 // We'll issue a warning here if no devices are available but not
Chris@559 2047 // throw an error since the user can plug something in later.
Chris@559 2048 unsigned int nDevices = midiOutGetNumDevs();
Chris@559 2049 if ( nDevices == 0 ) {
Chris@559 2050 errorString_ = "RtMidiOut::initialize: no MIDI output devices currently available.";
Chris@559 2051 error( RtError::WARNING );
Chris@559 2052 }
Chris@559 2053
Chris@559 2054 // Save our api-specific connection information.
Chris@559 2055 WinMidiData *data = (WinMidiData *) new WinMidiData;
Chris@559 2056 apiData_ = (void *) data;
Chris@559 2057 }
Chris@559 2058
Chris@565 2059 void RtMidiOut :: openPort( unsigned int portNumber, const std::string /*portName*/ )
Chris@559 2060 {
Chris@559 2061 if ( connected_ ) {
Chris@559 2062 errorString_ = "RtMidiOut::openPort: a valid connection already exists!";
Chris@559 2063 error( RtError::WARNING );
Chris@559 2064 return;
Chris@559 2065 }
Chris@559 2066
Chris@559 2067 unsigned int nDevices = midiOutGetNumDevs();
Chris@559 2068 if (nDevices < 1) {
Chris@559 2069 errorString_ = "RtMidiOut::openPort: no MIDI output destinations found!";
Chris@559 2070 error( RtError::NO_DEVICES_FOUND );
Chris@559 2071 }
Chris@559 2072
Chris@559 2073 std::ostringstream ost;
Chris@559 2074 if ( portNumber >= nDevices ) {
Chris@559 2075 ost << "RtMidiOut::openPort: the 'portNumber' argument (" << portNumber << ") is invalid.";
Chris@559 2076 errorString_ = ost.str();
Chris@559 2077 error( RtError::INVALID_PARAMETER );
Chris@559 2078 }
Chris@559 2079
Chris@559 2080 WinMidiData *data = static_cast<WinMidiData *> (apiData_);
Chris@559 2081 MMRESULT result = midiOutOpen( &data->outHandle,
Chris@559 2082 portNumber,
Chris@559 2083 (DWORD)NULL,
Chris@559 2084 (DWORD)NULL,
Chris@559 2085 CALLBACK_NULL );
Chris@559 2086 if ( result != MMSYSERR_NOERROR ) {
Chris@559 2087 errorString_ = "RtMidiOut::openPort: error creating Windows MM MIDI output port.";
Chris@559 2088 error( RtError::DRIVER_ERROR );
Chris@559 2089 }
Chris@559 2090
Chris@559 2091 connected_ = true;
Chris@559 2092 }
Chris@559 2093
Chris@559 2094 void RtMidiOut :: closePort( void )
Chris@559 2095 {
Chris@559 2096 if ( connected_ ) {
Chris@559 2097 WinMidiData *data = static_cast<WinMidiData *> (apiData_);
Chris@559 2098 midiOutReset( data->outHandle );
Chris@559 2099 midiOutClose( data->outHandle );
Chris@559 2100 connected_ = false;
Chris@559 2101 }
Chris@559 2102 }
Chris@559 2103
Chris@559 2104 void RtMidiOut :: openVirtualPort( std::string portName )
Chris@559 2105 {
Chris@559 2106 // This function cannot be implemented for the Windows MM MIDI API.
Chris@559 2107 errorString_ = "RtMidiOut::openVirtualPort: cannot be implemented in Windows MM MIDI API!";
Chris@559 2108 error( RtError::WARNING );
Chris@559 2109 }
Chris@559 2110
Chris@559 2111 RtMidiOut :: ~RtMidiOut()
Chris@559 2112 {
Chris@559 2113 // Close a connection if it exists.
Chris@559 2114 closePort();
Chris@559 2115
Chris@559 2116 // Cleanup.
Chris@559 2117 WinMidiData *data = static_cast<WinMidiData *> (apiData_);
Chris@559 2118 delete data;
Chris@559 2119 }
Chris@559 2120
Chris@559 2121 void RtMidiOut :: sendMessage( std::vector<unsigned char> *message )
Chris@559 2122 {
Chris@559 2123 unsigned int nBytes = message->size();
Chris@559 2124 if ( nBytes == 0 ) {
Chris@559 2125 errorString_ = "RtMidiOut::sendMessage: message argument is empty!";
Chris@559 2126 error( RtError::WARNING );
Chris@559 2127 return;
Chris@559 2128 }
Chris@559 2129
Chris@559 2130 MMRESULT result;
Chris@559 2131 WinMidiData *data = static_cast<WinMidiData *> (apiData_);
Chris@559 2132 if ( message->at(0) == 0xF0 ) { // Sysex message
Chris@559 2133
Chris@559 2134 // Allocate buffer for sysex data.
Chris@559 2135 char *buffer = (char *) malloc( nBytes );
Chris@559 2136 if ( buffer == NULL ) {
Chris@559 2137 errorString_ = "RtMidiOut::sendMessage: error allocating sysex message memory!";
Chris@559 2138 error( RtError::MEMORY_ERROR );
Chris@559 2139 }
Chris@559 2140
Chris@559 2141 // Copy data to buffer.
Chris@559 2142 for ( unsigned int i=0; i<nBytes; i++ ) buffer[i] = message->at(i);
Chris@559 2143
Chris@559 2144 // Create and prepare MIDIHDR structure.
Chris@559 2145 MIDIHDR sysex;
Chris@559 2146 sysex.lpData = (LPSTR) buffer;
Chris@559 2147 sysex.dwBufferLength = nBytes;
Chris@559 2148 sysex.dwFlags = 0;
Chris@559 2149 result = midiOutPrepareHeader( data->outHandle, &sysex, sizeof(MIDIHDR) );
Chris@559 2150 if ( result != MMSYSERR_NOERROR ) {
Chris@559 2151 free( buffer );
Chris@559 2152 errorString_ = "RtMidiOut::sendMessage: error preparing sysex header.";
Chris@559 2153 error( RtError::DRIVER_ERROR );
Chris@559 2154 }
Chris@559 2155
Chris@559 2156 // Send the message.
Chris@559 2157 result = midiOutLongMsg( data->outHandle, &sysex, sizeof(MIDIHDR) );
Chris@559 2158 if ( result != MMSYSERR_NOERROR ) {
Chris@559 2159 free( buffer );
Chris@559 2160 errorString_ = "RtMidiOut::sendMessage: error sending sysex message.";
Chris@559 2161 error( RtError::DRIVER_ERROR );
Chris@559 2162 }
Chris@559 2163
Chris@559 2164 // Unprepare the buffer and MIDIHDR.
Chris@559 2165 while ( MIDIERR_STILLPLAYING == midiOutUnprepareHeader( data->outHandle, &sysex, sizeof (MIDIHDR) ) ) Sleep( 1 );
Chris@559 2166 free( buffer );
Chris@559 2167
Chris@559 2168 }
Chris@559 2169 else { // Channel or system message.
Chris@559 2170
Chris@559 2171 // Make sure the message size isn't too big.
Chris@559 2172 if ( nBytes > 3 ) {
Chris@559 2173 errorString_ = "RtMidiOut::sendMessage: message size is greater than 3 bytes (and not sysex)!";
Chris@559 2174 error( RtError::WARNING );
Chris@559 2175 return;
Chris@559 2176 }
Chris@559 2177
Chris@559 2178 // Pack MIDI bytes into double word.
Chris@559 2179 DWORD packet;
Chris@559 2180 unsigned char *ptr = (unsigned char *) &packet;
Chris@559 2181 for ( unsigned int i=0; i<nBytes; i++ ) {
Chris@559 2182 *ptr = message->at(i);
Chris@559 2183 ptr++;
Chris@559 2184 }
Chris@559 2185
Chris@559 2186 // Send the message immediately.
Chris@559 2187 result = midiOutShortMsg( data->outHandle, packet );
Chris@559 2188 if ( result != MMSYSERR_NOERROR ) {
Chris@559 2189 errorString_ = "RtMidiOut::sendMessage: error sending MIDI message.";
Chris@559 2190 error( RtError::DRIVER_ERROR );
Chris@559 2191 }
Chris@559 2192 }
Chris@559 2193 }
Chris@559 2194
Chris@559 2195 #endif // __WINDOWS_MM__
Chris@609 2196
Chris@609 2197 #ifdef __RTMIDI_DUMMY_ONLY__
Chris@609 2198
Chris@609 2199 void RtMidiIn :: initialize( const std::string& /*clientName*/ )
Chris@609 2200 {
Chris@609 2201 }
Chris@609 2202
Chris@609 2203 void RtMidiIn :: openPort( unsigned int portNumber, const std::string /*portName*/ )
Chris@609 2204 {
Chris@609 2205 }
Chris@609 2206
Chris@609 2207 void RtMidiIn :: openVirtualPort( std::string portName )
Chris@609 2208 {
Chris@609 2209 }
Chris@609 2210
Chris@609 2211 void RtMidiIn :: closePort( void )
Chris@609 2212 {
Chris@609 2213 }
Chris@609 2214
Chris@609 2215 RtMidiIn :: ~RtMidiIn()
Chris@609 2216 {
Chris@609 2217 }
Chris@609 2218
Chris@609 2219 unsigned int RtMidiIn :: getPortCount()
Chris@609 2220 {
Chris@609 2221 return 0;
Chris@609 2222 }
Chris@609 2223
Chris@609 2224 std::string RtMidiIn :: getPortName( unsigned int portNumber )
Chris@609 2225 {
Chris@609 2226 return "";
Chris@609 2227 }
Chris@609 2228
Chris@609 2229 unsigned int RtMidiOut :: getPortCount()
Chris@609 2230 {
Chris@609 2231 return 0;
Chris@609 2232 }
Chris@609 2233
Chris@609 2234 std::string RtMidiOut :: getPortName( unsigned int portNumber )
Chris@609 2235 {
Chris@609 2236 return "";
Chris@609 2237 }
Chris@609 2238
Chris@609 2239 void RtMidiOut :: initialize( const std::string& /*clientName*/ )
Chris@609 2240 {
Chris@609 2241 }
Chris@609 2242
Chris@609 2243 void RtMidiOut :: openPort( unsigned int portNumber, const std::string /*portName*/ )
Chris@609 2244 {
Chris@609 2245 }
Chris@609 2246
Chris@609 2247 void RtMidiOut :: closePort( void )
Chris@609 2248 {
Chris@609 2249 }
Chris@609 2250
Chris@609 2251 void RtMidiOut :: openVirtualPort( std::string portName )
Chris@609 2252 {
Chris@609 2253 }
Chris@609 2254
Chris@609 2255 RtMidiOut :: ~RtMidiOut()
Chris@609 2256 {
Chris@609 2257 }
Chris@609 2258
Chris@609 2259 void RtMidiOut :: sendMessage( std::vector<unsigned char> *message )
Chris@609 2260 {
Chris@609 2261 }
Chris@609 2262
Chris@609 2263 #endif __RTMIDI_DUMMY_ONLY__
Chris@609 2264