reactos/lib/drivers/sound/mmebuddy/wave/widMessage.c

   1 /*
   2  * PROJECT:     ReactOS Sound System "MME Buddy" Library
   3  * LICENSE:     GPL - See COPYING in the top level directory
   4  * FILE:        lib/sound/mmebuddy/wave/widMessage.c
   5  *
   6  * PURPOSE:     Provides the widMessage exported function, as required by
   7  *              the MME API, for wave input device support.
   8  *
   9  * PROGRAMMERS: Andrew Greenwood (silverblade@reactos.org)
  10 */
  11
  12 #include <windows.h>
  13 #include <mmsystem.h>
  14 #include <mmddk.h>
  15
  16 #include <ntddsnd.h>
  17 #include <sndtypes.h>
  18
  19 #include <mmebuddy.h>
  20
  21 /*
  22     Standard MME driver entry-point for messages relating to wave audio
  23     input.
  24 */
  25 DWORD
  26 APIENTRY
  27 widMessage(
  28     DWORD DeviceId,
  29     DWORD Message,
  30     DWORD PrivateHandle,
  31     DWORD Parameter1,
  32     DWORD Parameter2)
  33 {
  34     MMRESULT Result = MMSYSERR_NOTSUPPORTED;
  35
  36     AcquireEntrypointMutex(WAVE_IN_DEVICE_TYPE);
  37
  38     SND_TRACE(L"widMessage - Message type %d\n", Message);
  39
  40     switch ( Message )
  41     {
  42         case WIDM_GETNUMDEVS :
  43         {
  44             Result = GetSoundDeviceCount(WAVE_IN_DEVICE_TYPE);
  45             break;
  46         }
  47
  48         case WIDM_GETDEVCAPS :
  49         {
  50             Result = MmeGetSoundDeviceCapabilities(WAVE_IN_DEVICE_TYPE,
  51                                                    DeviceId,
  52                                                    (PVOID) Parameter1,
  53                                                    Parameter2);
  54             break;
  55         }
  56     }
  57
  58     SND_TRACE(L"widMessage returning MMRESULT %d\n", Result);
  59
  60     ReleaseEntrypointMutex(WAVE_IN_DEVICE_TYPE);
  61
  62     return Result;
  63 }