lib/drivers/sound/mmebuddy/wave/format.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/format.c
   5  *
   6  * PURPOSE:     Queries and sets wave device format (sample rate, etc.)
   7  *
   8  * PROGRAMMERS: Andrew Greenwood (silverblade@reactos.org)
   9 */
  10
  11 #include <windows.h>
  12 #include <mmsystem.h>
  13 #include <mmddk.h>
  14 #include <ntddsnd.h>
  15 #include <sndtypes.h>
  16 #include <mmebuddy.h>
  17
  18 MMRESULT
  19 QueryWaveDeviceFormatSupport(
  20     IN  PSOUND_DEVICE SoundDevice,
  21     IN  LPWAVEFORMATEX Format,
  22     IN  DWORD FormatSize)
  23 {
  24     MMRESULT Result;
  25     MMDEVICE_TYPE DeviceType;
  26     PMMFUNCTION_TABLE FunctionTable;
  27
  28     SND_TRACE(L"Querying wave format support\n");
  29
  30     VALIDATE_MMSYS_PARAMETER( IsValidSoundDevice(SoundDevice) );
  31     VALIDATE_MMSYS_PARAMETER( Format );
  32     VALIDATE_MMSYS_PARAMETER( FormatSize >= sizeof(WAVEFORMATEX) );
  33
  34     Result = GetSoundDeviceType(SoundDevice, &DeviceType);
  35     SND_ASSERT( Result == MMSYSERR_NOERROR );
  36
  37     /* Ensure we have a wave device (TODO: check if this applies to wavein as well) */
  38     VALIDATE_MMSYS_PARAMETER( IS_WAVE_DEVICE_TYPE(DeviceType) );
  39
  40     /* Obtain the function table */
  41     Result = GetSoundDeviceFunctionTable(SoundDevice, &FunctionTable);
  42     SND_ASSERT( Result == MMSYSERR_NOERROR );
  43
  44     if ( ! MMSUCCESS(Result) )
  45         return TranslateInternalMmResult(Result);
  46
  47     if ( ! FunctionTable->QueryWaveFormatSupport )
  48         return MMSYSERR_NOTSUPPORTED;
  49
  50     return FunctionTable->QueryWaveFormatSupport(SoundDevice, Format, FormatSize);
  51 }
  52
  53 MMRESULT
  54 SetWaveDeviceFormat(
  55     IN  PSOUND_DEVICE_INSTANCE SoundDeviceInstance,
  56     IN  DWORD DeviceId,
  57     IN  LPWAVEFORMATEX Format,
  58     IN  DWORD FormatSize)
  59 {
  60     MMRESULT Result;
  61     MMDEVICE_TYPE DeviceType;
  62     PMMFUNCTION_TABLE FunctionTable;
  63     PSOUND_DEVICE SoundDevice;
  64
  65     SND_TRACE(L"Setting wave format\n");
  66
  67     VALIDATE_MMSYS_PARAMETER( IsValidSoundDeviceInstance(SoundDeviceInstance) );
  68     VALIDATE_MMSYS_PARAMETER( Format );
  69     VALIDATE_MMSYS_PARAMETER( FormatSize >= sizeof(WAVEFORMATEX) );
  70
  71     Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
  72     if ( ! MMSUCCESS(Result) )
  73         return TranslateInternalMmResult(Result);
  74
  75     Result = GetSoundDeviceType(SoundDevice, &DeviceType);
  76     SND_ASSERT( Result == MMSYSERR_NOERROR );
  77
  78     /* Ensure we have a wave device (TODO: check if this applies to wavein as well) */
  79     VALIDATE_MMSYS_PARAMETER( IS_WAVE_DEVICE_TYPE(DeviceType) );
  80
  81     /* Obtain the function table */
  82     Result = GetSoundDeviceFunctionTable(SoundDevice, &FunctionTable);
  83     SND_ASSERT( Result == MMSYSERR_NOERROR );
  84
  85     if ( ! MMSUCCESS(Result) )
  86         return TranslateInternalMmResult(Result);
  87
  88     if ( ! FunctionTable->SetWaveFormat )
  89         return MMSYSERR_NOTSUPPORTED;
  90
  91     return FunctionTable->SetWaveFormat(SoundDeviceInstance, DeviceId, Format, FormatSize);
  92 }