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 "precomp.h"
  12
  13 MMRESULT
  14 QueryWaveDeviceFormatSupport(
  15     IN  PSOUND_DEVICE SoundDevice,
  16     IN  LPWAVEFORMATEX Format,
  17     IN  DWORD FormatSize)
  18 {
  19     MMRESULT Result;
  20     MMDEVICE_TYPE DeviceType;
  21     PMMFUNCTION_TABLE FunctionTable;
  22
  23     SND_TRACE(L"Querying wave format support\n");
  24
  25     VALIDATE_MMSYS_PARAMETER( IsValidSoundDevice(SoundDevice) );
  26     VALIDATE_MMSYS_PARAMETER( Format );
  27     VALIDATE_MMSYS_PARAMETER( FormatSize >= sizeof(WAVEFORMATEX) );
  28
  29     Result = GetSoundDeviceType(SoundDevice, &DeviceType);
  30     SND_ASSERT( Result == MMSYSERR_NOERROR );
  31
  32     /* Ensure we have a wave device (TODO: check if this applies to wavein as well) */
  33     VALIDATE_MMSYS_PARAMETER( IS_WAVE_DEVICE_TYPE(DeviceType) );
  34
  35     /* Obtain the function table */
  36     Result = GetSoundDeviceFunctionTable(SoundDevice, &FunctionTable);
  37     SND_ASSERT( Result == MMSYSERR_NOERROR );
  38
  39     if ( ! MMSUCCESS(Result) )
  40         return TranslateInternalMmResult(Result);
  41
  42     if ( ! FunctionTable->QueryWaveFormatSupport )
  43         return MMSYSERR_NOTSUPPORTED;
  44
  45     return FunctionTable->QueryWaveFormatSupport(SoundDevice, Format, FormatSize);
  46 }
  47
  48 MMRESULT
  49 SetWaveDeviceFormat(
  50     IN  PSOUND_DEVICE_INSTANCE SoundDeviceInstance,
  51     IN  DWORD DeviceId,
  52     IN  LPWAVEFORMATEX Format,
  53     IN  DWORD FormatSize)
  54 {
  55     MMRESULT Result;
  56     MMDEVICE_TYPE DeviceType;
  57     PMMFUNCTION_TABLE FunctionTable;
  58     PSOUND_DEVICE SoundDevice;
  59
  60     SND_TRACE(L"Setting wave format\n");
  61
  62     VALIDATE_MMSYS_PARAMETER( IsValidSoundDeviceInstance(SoundDeviceInstance) );
  63
  64     Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
  65     if ( ! MMSUCCESS(Result) )
  66         return TranslateInternalMmResult(Result);
  67
  68     Result = GetSoundDeviceType(SoundDevice, &DeviceType);
  69     SND_ASSERT( Result == MMSYSERR_NOERROR );
  70     if (DeviceType == WAVE_IN_DEVICE_TYPE || DeviceType == WAVE_OUT_DEVICE_TYPE)
  71     {
  72         VALIDATE_MMSYS_PARAMETER( Format );
  73         VALIDATE_MMSYS_PARAMETER( FormatSize >= sizeof(WAVEFORMATEX) );
  74     }
  75
  76     /* Ensure we have a wave device (TODO: check if this applies to wavein as well) */
  77     VALIDATE_MMSYS_PARAMETER( IS_WAVE_DEVICE_TYPE(DeviceType) || IS_MIDI_DEVICE_TYPE(DeviceType) || IS_MIXER_DEVICE_TYPE(DeviceType));
  78
  79     /* Obtain the function table */
  80     Result = GetSoundDeviceFunctionTable(SoundDevice, &FunctionTable);
  81     SND_ASSERT( Result == MMSYSERR_NOERROR );
  82
  83     if ( ! MMSUCCESS(Result) )
  84         return TranslateInternalMmResult(Result);
  85
  86     if ( ! FunctionTable->SetWaveFormat )
  87         return MMSYSERR_NOTSUPPORTED;
  88
  89     return FunctionTable->SetWaveFormat(SoundDeviceInstance, DeviceId, Format, FormatSize);
  90 }