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