00001 /* 00002 Copyright (C) 2001 Paul Davis 00003 Copyright (C) 2004-2008 Grame 00004 00005 This program is free software; you can redistribute it and/or modify 00006 it under the terms of the GNU General Public License as published by 00007 the Free Software Foundation; either version 2 of the License, or 00008 (at your option) any later version. 00009 00010 This program is distributed in the hope that it will be useful, 00011 but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 GNU General Public License for more details. 00014 00015 You should have received a copy of the GNU General Public License 00016 along with this program; if not, write to the Free Software 00017 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00018 00019 */ 00020 00021 #ifdef WIN32 00022 #pragma warning (disable : 4786) 00023 #endif 00024 00025 #include "JackLoopbackDriver.h" 00026 #include "JackEngineControl.h" 00027 #include "JackGraphManager.h" 00028 #include <iostream> 00029 #include <assert.h> 00030 00031 namespace Jack 00032 { 00033 00034 int JackLoopbackDriver::Process() 00035 { 00036 assert(fCaptureChannels == fPlaybackChannels); 00037 00038 // Loopback copy 00039 for (int i = 0; i < fCaptureChannels; i++) { 00040 memcpy(GetInputBuffer(i), GetOutputBuffer(i), sizeof(float) * fEngineControl->fBufferSize); 00041 } 00042 00043 fGraphManager->ResumeRefNum(fClientControl, fSynchroTable); // Signal all clients 00044 if (fEngineControl->fSyncMode) { 00045 if (fGraphManager->SuspendRefNum(fClientControl, fSynchroTable, fEngineControl->fTimeOutUsecs) < 0) { 00046 jack_error("JackLoopbackDriver::ProcessSync SuspendRefNum error"); 00047 return -1; 00048 } 00049 } 00050 return 0; 00051 } 00052 00053 } // end of namespace