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
  24 #ifdef HAVE_COREAUDIO_COREAUDIO_H
  25
  26 #include <CoreMIDI/CoreMIDI.h>
  27 #include <mach/mach_time.h>
  28
  29 #include "coremidi.h"
  30
  31
  32 MIDIClientRef CoreMIDI_CreateClient(CFStringRef name)
  33 {
  34     MIDIClientRef client = NULL;
  35
  36     if (MIDIClientCreate(name, NULL /* FIXME use notify proc */, NULL, &client) != noErr)
  37         return NULL;
  38
  39     return client;
  40 }
  41
  42 void CoreMIDI_GetObjectName(MIDIObjectRef obj, char *name, int size)
  43 {
  44     OSStatus err = noErr;
  45     CFStringRef cfname;
  46
  47     err = MIDIObjectGetStringProperty(obj, kMIDIPropertyName, &cfname);
  48     if (err == noErr)
  49     {
  50         CFStringGetCString(cfname, name, size, kCFStringEncodingASCII);
  51         CFRelease(cfname);
  52     }
  53 }
  54
  55 /*
  56  *  CoreMIDI IO threaded callback,
  57  *  we can't call Wine debug channels, critical section or anything using NtCurrentTeb here.
  58  */
  59 void MIDIIn_ReadProc(const MIDIPacketList *pktlist, void *refCon, void *connRefCon)
  60 {
  61     unsigned int i;
  62     MIDIMessage msg;
  63
  64     MIDIPacket *packet = (MIDIPacket *)pktlist->packet;
  65     for (i = 0; i < pktlist->numPackets; ++i) {
  66         msg.devID = *((UInt16 *)connRefCon);
  67         msg.length = packet->length;
  68         memcpy(msg.data, packet->data, sizeof(packet->data));
  69
  70         MIDIIn_SendMessage(msg);
  71
  72         packet = MIDIPacketNext(packet);
  73     }
  74 }
  75
  76 void MIDIOut_Send(MIDIPortRef port, MIDIEndpointRef dest, UInt8 *buffer, unsigned length)
  77 {
  78     Byte packetBuff[512];
  79     MIDIPacketList *packetList = (MIDIPacketList *)packetBuff;
  80
  81     MIDIPacket *packet = MIDIPacketListInit(packetList);
  82
  83     packet = MIDIPacketListAdd(packetList, sizeof(packetBuff), packet, mach_absolute_time(), length, buffer);
  84     if (packet)
  85         MIDISend(port, dest, packetList);
  86 }
  87 #endif /* HAVE_COREAUDIO_COREAUDIO_H */