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

   1 /*
   2  * PROJECT:     ReactOS Sound System "MME Buddy" Library
   3  * LICENSE:     GPL - See COPYING in the top level directory
   4  * FILE:        lib/drivers/sound/mmebuddy/wave/wodMessage.c
   5  *
   6  * PURPOSE:     Provides the wodMessage exported function, as required by
   7  *              the MME API, for wave output 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
  18 #include <mmebuddy.h>
  19
  20 #if 0
  21 MMRESULT HelloWorld(PSOUND_DEVICE_INSTANCE Instance, PVOID String)
  22 {
  23     PWSTR WString = (PWSTR) String;
  24     SND_TRACE(WString);
  25     return MMSYSERR_NOTSUPPORTED;
  26 }
  27 #endif
  28
  29 /*
  30     Standard MME driver entry-point for messages relating to wave audio
  31     output.
  32 */
  33 APIENTRY DWORD
  34 wodMessage(
  35     DWORD DeviceId,
  36     DWORD Message,
  37     DWORD PrivateHandle,
  38     DWORD Parameter1,
  39     DWORD Parameter2)
  40 {
  41     MMRESULT Result = MMSYSERR_NOTSUPPORTED;
  42
  43     AcquireEntrypointMutex(WAVE_OUT_DEVICE_TYPE);
  44
  45     SND_TRACE(L"wodMessage - Message type %d\n", Message);
  46
  47     switch ( Message )
  48     {
  49         case WODM_GETNUMDEVS :
  50         {
  51             Result = GetSoundDeviceCount(WAVE_OUT_DEVICE_TYPE);
  52             break;
  53         }
  54
  55         case WODM_GETDEVCAPS :
  56         {
  57             Result = MmeGetSoundDeviceCapabilities(WAVE_OUT_DEVICE_TYPE,
  58                                                    DeviceId,
  59                                                    (PVOID) Parameter1,
  60                                                    Parameter2);
  61             break;
  62         }
  63
  64         case WODM_OPEN :
  65         {
  66             Result = MmeOpenWaveDevice(WAVE_OUT_DEVICE_TYPE,
  67                                        DeviceId,
  68                                        (LPWAVEOPENDESC) Parameter1,
  69                                        Parameter2,
  70                                        (DWORD*) PrivateHandle);
  71             break;
  72         }
  73
  74         case WODM_CLOSE :
  75         {
  76             Result = MmeCloseDevice(PrivateHandle);
  77
  78             break;
  79         }
  80
  81         case WODM_PREPARE :
  82         {
  83             /* TODO: Do we need to pass 2nd parameter? */
  84             Result = MmePrepareWaveHeader(PrivateHandle, Parameter1);
  85             break;
  86         }
  87
  88         case WODM_UNPREPARE :
  89         {
  90             Result = MmeUnprepareWaveHeader(PrivateHandle, Parameter1);
  91             break;
  92         }
  93
  94         case WODM_WRITE :
  95         {
  96             Result = MmeSubmitWaveHeader(PrivateHandle, Parameter1);
  97             break;
  98         }
  99
 100         case WODM_GETPOS :
 101         {
 102 #if 0
 103             /* Hacky code to test the threading */
 104             PSOUND_DEVICE_INSTANCE Instance = (PSOUND_DEVICE_INSTANCE)PrivateHandle;
 105             CallSoundThread(Instance->Thread, HelloWorld, Instance, L"Hello World!");
 106             CallSoundThread(Instance->Thread, HelloWorld, Instance, L"Hello Universe!");
 107 #endif
 108             break;
 109         }
 110     }
 111
 112     SND_TRACE(L"wodMessage returning MMRESULT %d\n", Result);
 113
 114     ReleaseEntrypointMutex(WAVE_OUT_DEVICE_TYPE);
 115
 116     return Result;
 117 }