dlls/mmdevapi/mmdevapi.h

   1 /*
   2  * Copyright 2009 Maarten Lankhorst
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "unixlib.h"
  20
  21 #include <wine/list.h>
  22
  23 extern HRESULT MMDevEnum_Create(REFIID riid, void **ppv) DECLSPEC_HIDDEN;
  24 extern void MMDevEnum_Free(void) DECLSPEC_HIDDEN;
  25
  26 typedef struct _DriverFuncs {
  27     HMODULE module;
  28     WCHAR module_name[64];
  29     int priority;
  30
  31     /* Returns a "priority" value for the driver. Highest priority wins.
  32      * If multiple drivers think they are valid, they will return a
  33      * priority value reflecting the likelihood that they are actually
  34      * valid. See enum _DriverPriority. */
  35     int (WINAPI *pGetPriority)(void);
  36
  37     /* ids gets an array of human-friendly endpoint names
  38      * keys gets an array of driver-specific stuff that is used
  39      *   in GetAudioEndpoint to identify the endpoint
  40      * it is the caller's responsibility to free both arrays, and
  41      *   all of the elements in both arrays with HeapFree() */
  42     HRESULT (WINAPI *pGetEndpointIDs)(EDataFlow flow, WCHAR ***ids,
  43             GUID **guids, UINT *num, UINT *default_index);
  44     HRESULT (WINAPI *pGetAudioEndpoint)(void *key, IMMDevice *dev,
  45             IAudioClient **out);
  46     HRESULT (WINAPI *pGetAudioSessionManager)(IMMDevice *device,
  47             IAudioSessionManager2 **out);
  48     HRESULT (WINAPI *pGetPropValue)(GUID *guid,
  49             const PROPERTYKEY *prop, PROPVARIANT *out);
  50 } DriverFuncs;
  51
  52 extern DriverFuncs drvs DECLSPEC_HIDDEN;
  53
  54 typedef struct MMDevice {
  55     IMMDevice IMMDevice_iface;
  56     IMMEndpoint IMMEndpoint_iface;
  57     LONG ref;
  58
  59     CRITICAL_SECTION crst;
  60
  61     EDataFlow flow;
  62     DWORD state;
  63     GUID devguid;
  64     WCHAR *drv_id;
  65
  66     struct list entry;
  67 } MMDevice;
  68
  69 extern HRESULT AudioClient_Create(MMDevice *parent, IAudioClient **ppv) DECLSPEC_HIDDEN;
  70 extern HRESULT AudioEndpointVolume_Create(MMDevice *parent, IAudioEndpointVolumeEx **ppv) DECLSPEC_HIDDEN;
  71 extern HRESULT SpatialAudioClient_Create(IMMDevice *device, ISpatialAudioClient **out) DECLSPEC_HIDDEN;
  72
  73 extern HRESULT load_devices_from_reg(void) DECLSPEC_HIDDEN;
  74 extern HRESULT load_driver_devices(EDataFlow flow) DECLSPEC_HIDDEN;
  75
  76 extern const WCHAR drv_keyW[] DECLSPEC_HIDDEN;