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 <winternl.h>
  22
  23 #include <wine/list.h>
  24 #include <wine/unixlib.h>
  25
  26 extern HRESULT MMDevEnum_Create(REFIID riid, void **ppv) DECLSPEC_HIDDEN;
  27 extern void MMDevEnum_Free(void) DECLSPEC_HIDDEN;
  28
  29 typedef struct _DriverFuncs {
  30     HMODULE module;
  31     unixlib_handle_t module_unixlib;
  32     WCHAR module_name[64];
  33
  34     /* Highest priority wins.
  35      * If multiple drivers think they are valid, they will return a
  36      * priority value reflecting the likelihood that they are actually
  37      * valid. See enum _DriverPriority. */
  38     int priority;
  39
  40     /* ids gets an array of human-friendly endpoint names
  41      * keys gets an array of driver-specific stuff that is used
  42      *   in GetAudioEndpoint to identify the endpoint
  43      * it is the caller's responsibility to free both arrays, and
  44      *   all of the elements in both arrays with HeapFree() */
  45     HRESULT (WINAPI *pGetEndpointIDs)(EDataFlow flow, WCHAR ***ids,
  46             GUID **guids, UINT *num, UINT *default_index);
  47     HRESULT (WINAPI *pGetAudioEndpoint)(void *key, IMMDevice *dev,
  48             IAudioClient **out);
  49     HRESULT (WINAPI *pGetAudioSessionManager)(IMMDevice *device,
  50             IAudioSessionManager2 **out);
  51     HRESULT (WINAPI *pGetPropValue)(GUID *guid,
  52             const PROPERTYKEY *prop, PROPVARIANT *out);
  53 } DriverFuncs;
  54
  55 extern DriverFuncs drvs DECLSPEC_HIDDEN;
  56
  57 typedef struct MMDevice {
  58     IMMDevice IMMDevice_iface;
  59     IMMEndpoint IMMEndpoint_iface;
  60     LONG ref;
  61
  62     CRITICAL_SECTION crst;
  63
  64     EDataFlow flow;
  65     DWORD state;
  66     GUID devguid;
  67     WCHAR *drv_id;
  68
  69     struct list entry;
  70 } MMDevice;
  71
  72 extern HRESULT AudioClient_Create(MMDevice *parent, IAudioClient **ppv) DECLSPEC_HIDDEN;
  73 extern HRESULT AudioEndpointVolume_Create(MMDevice *parent, IAudioEndpointVolumeEx **ppv) DECLSPEC_HIDDEN;
  74 extern HRESULT SpatialAudioClient_Create(IMMDevice *device, ISpatialAudioClient **out) DECLSPEC_HIDDEN;
  75
  76 extern HRESULT load_devices_from_reg(void) DECLSPEC_HIDDEN;
  77 extern HRESULT load_driver_devices(EDataFlow flow) DECLSPEC_HIDDEN;
  78
  79 extern const WCHAR drv_keyW[] DECLSPEC_HIDDEN;