| 415 | */ |
| 416 | |
| 417 | int CsoundPerformanceThread::Perform() |
| 418 | { |
| 419 | int retval = 0; |
| 420 | do { |
| 421 | while (firstMessage) { |
| 422 | csoundLockMutex(queueLock); |
| 423 | do { |
| 424 | CsoundPerformanceThreadMessage *msg; |
| 425 | // get oldest message |
| 426 | msg = (CsoundPerformanceThreadMessage*) firstMessage; |
| 427 | if (!msg) |
| 428 | break; |
| 429 | // unlink from FIFO |
| 430 | firstMessage = msg->nxt; |
| 431 | if (!msg->nxt) |
| 432 | lastMessage = (CsoundPerformanceThreadMessage*) 0; |
| 433 | // process and destroy message |
| 434 | retval = msg->run(); |
| 435 | delete msg; // TODO: This should be moved out of the Perform function |
| 436 | } while (!retval); |
| 437 | if (paused) |
| 438 | csoundWaitThreadLock(pauseLock, (size_t) 0); |
| 439 | // mark queue as empty |
| 440 | csoundNotifyThreadLock(flushLock); |
| 441 | csoundUnlockMutex(queueLock); |
| 442 | // if error or end of score, return now |
| 443 | if (retval) |
| 444 | goto endOfPerf; |
| 445 | // fprintf(stderr, "Error or end of score, returning now."); |
| 446 | // if paused, wait until a new message is received, then loop back |
| 447 | if (!paused) |
| 448 | break; |
| 449 | // VL: if this is paused, then it will double lock. |
| 450 | csoundWaitThreadLockNoTimeout(pauseLock); |
| 451 | csoundNotifyThreadLock(pauseLock); |
| 452 | } |
| 453 | if(processcallback != NULL) |
| 454 | processcallback(cdata); |
| 455 | retval = csoundPerformKsmps(csound); |
| 456 | if (recordData.running) { |
| 457 | MYFLT *spout = csoundGetSpout(csound); |
| 458 | int len = csoundGetKsmps(csound) * csoundGetNchnls(csound); |
| 459 | if (csoundGet0dBFS(csound) != 1.0) { |
| 460 | MYFLT zdbfs = csoundGet0dBFS(csound); |
| 461 | MYFLT *modspout = spout; |
| 462 | for (int i = 0; i < len; i++) { |
| 463 | *modspout /= zdbfs; |
| 464 | modspout++; |
| 465 | } |
| 466 | } |
| 467 | int written = csoundWriteCircularBuffer(NULL, recordData.cbuf, |
| 468 | spout, len); |
| 469 | if (written != len) { |
| 470 | csoundMessage(csound, "perfThread record buffer overrun.\n"); |
| 471 | } |
| 472 | } |
| 473 | csoundCondSignal(recordData.condvar); // Needs to be outside the if |
| 474 | // for the case where stop record was requested |
no test coverage detected