Jack2 1.9.10

JackCoreMidiVirtualOutputPort.cpp

00001 /*
00002 Copyright (C) 2011 Devin Anderson
00003 
00004 This program is free software; you can redistribute it and/or modify
00005 it under the terms of the GNU General Public License as published by
00006 the Free Software Foundation; either version 2 of the License, or
00007 (at your option) any later version.
00008 
00009 This program is distributed in the hope that it will be useful,
00010 but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 GNU General Public License for more details.
00013 
00014 You should have received a copy of the GNU General Public License
00015 along with this program; if not, write to the Free Software
00016 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 
00018 */
00019 
00020 #include <sstream>
00021 #include <stdexcept>
00022 
00023 #include "JackError.h"
00024 #include "JackCoreMidiUtil.h"
00025 #include "JackCoreMidiVirtualOutputPort.h"
00026 
00027 using Jack::JackCoreMidiVirtualOutputPort;
00028 
00029 JackCoreMidiVirtualOutputPort::
00030 JackCoreMidiVirtualOutputPort(const char *alias_name, const char *client_name,
00031                               const char *driver_name, int base_index, int index,
00032                               MIDIClientRef client, double time_ratio,
00033                               size_t max_bytes,
00034                               size_t max_messages):
00035     JackCoreMidiOutputPort(time_ratio, max_bytes,
00036                            max_messages)
00037 {
00038     std::stringstream stream;
00039     stream << "virtual" << (base_index + 1);
00040     CFStringRef name = CFStringCreateWithCString(0, stream.str().c_str(),
00041                                                  CFStringGetSystemEncoding());
00042     if (! name) {
00043         throw std::bad_alloc();
00044     }
00045     MIDIEndpointRef source;
00046     OSStatus status = MIDISourceCreate(client, name, &source);
00047     
00048     /*
00049     SInt32 value;                                        
00050     status = MIDIObjectGetIntegerProperty(source, kMIDIPropertyUniqueID, &value);
00051     if (status == noErr) {
00052         jack_info("kMIDIPropertyUniqueID %d", value);
00053     }
00054     */   
00055     
00056     CFRelease(name);
00057     if (status != noErr) {
00058         throw std::runtime_error(GetMacOSErrorString(status));
00059     }
00060     Initialize(alias_name, client_name, driver_name, index, source, 0);
00061     
00062     // Keep in global list (that keeps growing during the whole session...)
00063     endpoint_list.insert(GetEndpoint());
00064 }
00065 
00066 JackCoreMidiVirtualOutputPort::~JackCoreMidiVirtualOutputPort()
00067 {
00068     OSStatus status = MIDIEndpointDispose(GetEndpoint());
00069     if (status != noErr) {
00070         WriteMacOSError("JackCoreMidiVirtualOutputPort [destructor]",
00071                         "MIDIEndpointDispose", status);
00072     }
00073 }
00074 
00075 bool
00076 JackCoreMidiVirtualOutputPort::SendPacketList(MIDIPacketList *packet_list)
00077 {
00078     OSStatus status = MIDIReceived(endpoint, packet_list);
00079     bool result = status == noErr;
00080     if (! result) {
00081         WriteMacOSError("JackCoreMidiVirtualOutputPort::SendPacketList",
00082                         "MIDIReceived", status);
00083     }
00084     return result;
00085 }