dlls/winecoreaudio.drv/coremidi.c

   1 /*
   2  * Wine Midi driver for Mac OS X
   3  *
   4  * Copyright 2006 Emmanuel Maillard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21
  22 #include "config.h"
  23 #include "wine/debug.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(midi);
  26
  27 #ifdef HAVE_COREAUDIO_COREAUDIO_H
  28 #include <CoreMIDI/CoreMIDI.h>
  29 #include <mach/mach_time.h>
  30
  31 #include "coremidi.h"
  32
  33 MIDIClientRef CoreMIDI_CreateClient(CFStringRef name)
  34 {
  35     MIDIClientRef client = NULL;
  36
  37     if (MIDIClientCreate(name, NULL /* FIXME use notify proc */, NULL, &client) != noErr)
  38         return NULL;
  39
  40     return client;
  41 }
  42
  43 void CoreMIDI_GetObjectName(MIDIObjectRef obj, char *name, int size)
  44 {
  45     OSStatus err = noErr;
  46     CFStringRef cfname;
  47
  48     err = MIDIObjectGetStringProperty(obj, kMIDIPropertyName, &cfname);
  49     if (err == noErr)
  50     {
  51         CFStringGetCString(cfname, name, size, kCFStringEncodingASCII);
  52         CFRelease(cfname);
  53     }
  54 }
  55
  56 /*
  57  *  CoreMIDI IO threaded callback,
  58  *  we can't call Wine debug channels, critical section or anything using NtCurrentTeb here.
  59  */
  60 void MIDIIn_ReadProc(const MIDIPacketList *pktlist, void *refCon, void *connRefCon)
  61 {
  62     unsigned int i;
  63     MIDIMessage msg;
  64
  65     MIDIPacket *packet = (MIDIPacket *)pktlist->packet;
  66     for (i = 0; i < pktlist->numPackets; ++i) {
  67         msg.devID = *((UInt16 *)connRefCon);
  68         msg.length = packet->length;
  69         memcpy(msg.data, packet->data, sizeof(packet->data));
  70
  71         MIDIIn_SendMessage(msg);
  72
  73         packet = MIDIPacketNext(packet);
  74     }
  75 }
  76
  77 void MIDIOut_Send(MIDIPortRef port, MIDIEndpointRef dest, UInt8 *buffer, unsigned length)
  78 {
  79     Byte packetBuff[512];
  80     MIDIPacketList *packetList = (MIDIPacketList *)packetBuff;
  81
  82     MIDIPacket *packet = MIDIPacketListInit(packetList);
  83
  84     packet = MIDIPacketListAdd(packetList, sizeof(packetBuff), packet, mach_absolute_time(), length, buffer);
  85     if (packet)
  86         MIDISend(port, dest, packetList);
  87 }
  88 #endif /* HAVE_COREAUDIO_COREAUDIO_H */