windows-nt/Source/XPSP1/NT/shell/osshell/control/mmsys/dslevel.cpp

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//--------------------------------------------------------------------------;
//
// File: dslevel.cpp
//
// Copyright (c) 1997 Microsoft Corporation. All rights reserved
//
//--------------------------------------------------------------------------;
#include "mmcpl.h"
#include <windowsx.h>
#ifdef DEBUG
#undef DEBUG
#include <mmsystem.h>
#define DEBUG
#else
#include <mmsystem.h>
#endif
#include <commctrl.h>
#include <prsht.h>
#include <regstr.h>
#include "utils.h"
#include "medhelp.h"
#include "dslevel.h"
#include "perfpage.h"
#include "speakers.h"
#include <initguid.h>
#include <dsound.h>
#include <dsprv.h>
#define REG_KEY_SPEAKERTYPE TEXT("Speaker Type")
typedef HRESULT (STDAPICALLTYPE *LPFNDLLGETCLASSOBJECT)(REFCLSID, REFIID, LPVOID *);
typedef HRESULT (STDAPICALLTYPE *LPFNDIRECTSOUNDCREATE)(LPGUID, LPDIRECTSOUND*, IUnknown FAR *);
typedef HRESULT (STDAPICALLTYPE *LPFNDIRECTSOUNDCAPTURECREATE)(LPGUID, LPDIRECTSOUNDCAPTURE*, IUnknown FAR *);
HRESULT
DirectSoundPrivateCreate
(
OUT LPKSPROPERTYSET * ppKsPropertySet
)
{
HMODULE hLibDsound = NULL;
LPFNDLLGETCLASSOBJECT pfnDllGetClassObject = NULL;
LPCLASSFACTORY pClassFactory = NULL;
LPKSPROPERTYSET pKsPropertySet = NULL;
HRESULT hr = DS_OK;
// Load dsound.dll
hLibDsound = LoadLibrary(TEXT("dsound.dll"));
if(!hLibDsound)
{
hr = DSERR_GENERIC;
}
// Find DllGetClassObject
if(SUCCEEDED(hr))
{
pfnDllGetClassObject =
(LPFNDLLGETCLASSOBJECT)GetProcAddress
(
hLibDsound,
"DllGetClassObject"
);
if(!pfnDllGetClassObject)
{
hr = DSERR_GENERIC;
}
}
// Create a class factory object
if(SUCCEEDED(hr))
{
hr =
pfnDllGetClassObject
(
CLSID_DirectSoundPrivate,
IID_IClassFactory,
(LPVOID *)&pClassFactory
);
}
// Create the DirectSoundPrivate object and query for an IKsPropertySet
// interface
if(SUCCEEDED(hr))
{
hr =
pClassFactory->CreateInstance
(
NULL,
IID_IKsPropertySet,
(LPVOID *)&pKsPropertySet
);
}
// Release the class factory
if(pClassFactory)
{
pClassFactory->Release();
}
// Handle final success or failure
if(SUCCEEDED(hr))
{
*ppKsPropertySet = pKsPropertySet;
}
else if(pKsPropertySet)
{
pKsPropertySet->Release();
}
FreeLibrary(hLibDsound);
return hr;
}
HRESULT
DSGetGuidFromName
(
IN LPTSTR szName,
IN BOOL fRecord,
OUT LPGUID pGuid
)
{
LPKSPROPERTYSET pKsPropertySet = NULL;
HRESULT hr;
DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING_DATA
WaveDeviceMap;
// Create the DirectSoundPrivate object
hr =
DirectSoundPrivateCreate
(
&pKsPropertySet
);
// Attempt to map the waveIn/waveOut device string to a DirectSound device
// GUID.
if(SUCCEEDED(hr))
{
WaveDeviceMap.DeviceName = szName;
WaveDeviceMap.DataFlow = fRecord ? DIRECTSOUNDDEVICE_DATAFLOW_CAPTURE : DIRECTSOUNDDEVICE_DATAFLOW_RENDER;
hr =
pKsPropertySet->Get
(
DSPROPSETID_DirectSoundDevice,
DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING,
NULL,
0,
&WaveDeviceMap,
sizeof(WaveDeviceMap),
NULL
);
}
// Clean up
if(pKsPropertySet)
{
pKsPropertySet->Release();
}
if(SUCCEEDED(hr))
{
*pGuid = WaveDeviceMap.DeviceId;
}
return hr;
}
HRESULT
DSSetupFunctions
(
LPFNDIRECTSOUNDCREATE* pfnDSCreate,
LPFNDIRECTSOUNDCAPTURECREATE* pfnDSCaptureCreate
)
{
HMODULE hLibDsound = NULL;
HRESULT hr = DS_OK;
// Load dsound.dll
hLibDsound = LoadLibrary(TEXT("dsound.dll"));
if(!hLibDsound)
{
hr = DSERR_GENERIC;
}
// Find DirectSoundCreate
if(SUCCEEDED(hr))
{
*pfnDSCreate =
(LPFNDIRECTSOUNDCREATE)GetProcAddress
(
hLibDsound,
"DirectSoundCreate"
);
if(!(*pfnDSCreate))
{
hr = DSERR_GENERIC;
}
} //end DirectSoundCreate
// Find DirectSoundCaptureCreate
if(SUCCEEDED(hr))
{
*pfnDSCaptureCreate =
(LPFNDIRECTSOUNDCAPTURECREATE)GetProcAddress
(
hLibDsound,
"DirectSoundCaptureCreate"
);
if(!(*pfnDSCaptureCreate))
{
hr = DSERR_GENERIC;
}
} //end DirectSoundCaptureCreate
FreeLibrary(hLibDsound);
return (hr);
}
void
DSCleanup
(
IN LPKSPROPERTYSET pKsPropertySet,
IN LPDIRECTSOUND pDirectSound,
IN LPDIRECTSOUNDCAPTURE pDirectSoundCapture
)
{
if(pKsPropertySet)
{
pKsPropertySet->Release();
}
if(pDirectSound)
{
pDirectSound->Release();
}
if(pDirectSoundCapture)
{
pDirectSoundCapture->Release();
}
}
HRESULT
DSInitialize
(
IN GUID guid,
IN BOOL fRecord,
OUT LPKSPROPERTYSET* ppKsPropertySet,
OUT LPLPDIRECTSOUND ppDirectSound,
OUT LPLPDIRECTSOUNDCAPTURE ppDirectSoundCapture
)
{
HRESULT hr;
LPFNDIRECTSOUNDCREATE pfnDirectSoundCreate = NULL;
LPFNDIRECTSOUNDCAPTURECREATE pfnDirectSoundCaptureCreate = NULL;
// Initialize variables to return
*ppKsPropertySet = NULL;
*ppDirectSound = NULL;
*ppDirectSoundCapture = NULL;
// Find the necessary DirectSound functions
hr = DSSetupFunctions(&pfnDirectSoundCreate, &pfnDirectSoundCaptureCreate);
if (FAILED(hr))
{
return (hr);
}
// Create the DirectSound object
if(fRecord)
{
hr =
pfnDirectSoundCaptureCreate
(
&guid,
ppDirectSoundCapture,
NULL
);
}
else
{
hr =
pfnDirectSoundCreate
(
&guid,
ppDirectSound,
NULL
);
}
// Create the DirectSoundPrivate object
if(SUCCEEDED(hr))
{
hr =
DirectSoundPrivateCreate
(
ppKsPropertySet
);
}
// Clean up
if(FAILED(hr))
{
DSCleanup
(
*ppKsPropertySet,
*ppDirectSound,
*ppDirectSoundCapture
);
*ppKsPropertySet = NULL;
*ppDirectSound = NULL;
*ppDirectSoundCapture = NULL;
}
return hr;
}
HRESULT
DSGetAcceleration
(
IN GUID guid,
IN BOOL fRecord,
OUT LPDWORD pdwHWLevel
)
{
LPKSPROPERTYSET pKsPropertySet = NULL;
LPDIRECTSOUND pDirectSound = NULL;
LPDIRECTSOUNDCAPTURE pDirectSoundCapture = NULL;
HRESULT hr;
DSPROPERTY_DIRECTSOUNDBASICACCELERATION_ACCELERATION_DATA
BasicAcceleration;
// Find the necessary DirectSound functions
hr = DSInitialize(guid, fRecord, &pKsPropertySet, &pDirectSound, &pDirectSoundCapture );
// Get properties for this device
if(SUCCEEDED(hr))
{
BasicAcceleration.DeviceId = guid;
// Get the default acceleration level
hr =
pKsPropertySet->Get
(
DSPROPSETID_DirectSoundBasicAcceleration,
DSPROPERTY_DIRECTSOUNDBASICACCELERATION_DEFAULT,
NULL,
0,
&BasicAcceleration,
sizeof(BasicAcceleration),
NULL
);
if (SUCCEEDED(hr))
{
gAudData.dwDefaultHWLevel = BasicAcceleration.Level;
}
// Get the basic HW acceleration level. This property will return
// S_FALSE if no error occurred, but the registry value did not exist.
hr =
pKsPropertySet->Get
(
DSPROPSETID_DirectSoundBasicAcceleration,
DSPROPERTY_DIRECTSOUNDBASICACCELERATION_ACCELERATION,
NULL,
0,
&BasicAcceleration,
sizeof(BasicAcceleration),
NULL
);
if(SUCCEEDED(hr))
{
*pdwHWLevel = BasicAcceleration.Level;
}
else
{
*pdwHWLevel = gAudData.dwDefaultHWLevel;
}
}
// Clean up
DSCleanup
(
pKsPropertySet,
pDirectSound,
pDirectSoundCapture
);
return hr;
}
HRESULT
DSGetSrcQuality
(
IN GUID guid,
IN BOOL fRecord,
OUT LPDWORD pdwSRCLevel
)
{
LPKSPROPERTYSET pKsPropertySet = NULL;
LPDIRECTSOUND pDirectSound = NULL;
LPDIRECTSOUNDCAPTURE pDirectSoundCapture = NULL;
HRESULT hr;
DSPROPERTY_DIRECTSOUNDMIXER_SRCQUALITY_DATA
SrcQuality;
// Find the necessary DirectSound functions
hr = DSInitialize(guid, fRecord, &pKsPropertySet, &pDirectSound, &pDirectSoundCapture );
// Get properties for this device
if(SUCCEEDED(hr))
{
// Get the mixer SRC quality. This property will return S_FALSE
// if no error occurred, but the registry value did not exist.
SrcQuality.DeviceId = guid;
hr =
pKsPropertySet->Get
(
DSPROPSETID_DirectSoundMixer,
DSPROPERTY_DIRECTSOUNDMIXER_SRCQUALITY,
NULL,
0,
&SrcQuality,
sizeof(SrcQuality),
NULL
);
if(SUCCEEDED(hr))
{
// The CPL only uses the 3 highest of 4 possible SRC values
*pdwSRCLevel = SrcQuality.Quality;
if(*pdwSRCLevel > 0)
{
(*pdwSRCLevel)--;
}
}
else
{
*pdwSRCLevel = DEFAULT_SRC_LEVEL;
}
}
// Clean up
DSCleanup
(
pKsPropertySet,
pDirectSound,
pDirectSoundCapture
);
return hr;
}
HRESULT
DSGetSpeakerConfigType
(
IN GUID guid,
IN BOOL fRecord,
OUT LPDWORD pdwSpeakerConfig,
OUT LPDWORD pdwSpeakerType
)
{
LPKSPROPERTYSET pKsPropertySet = NULL;
LPDIRECTSOUND pDirectSound = NULL;
LPDIRECTSOUNDCAPTURE pDirectSoundCapture = NULL;
HRESULT hr = DS_OK;
HRESULT hrSpeakerType;
DSPROPERTY_DIRECTSOUNDPERSISTENTDATA_PERSISTDATA_DATA
SpeakerType;
// Can't get the speaker type if we're recording
if(fRecord)
{
hr = E_INVALIDARG;
}
// Find the necessary DirectSound functions
if(SUCCEEDED(hr))
{
hr = DSInitialize(guid, fRecord, &pKsPropertySet, &pDirectSound, &pDirectSoundCapture );
}
// Get properties for this device
if(SUCCEEDED(hr))
{
// Get the speaker config
hr =
pDirectSound->GetSpeakerConfig
(
pdwSpeakerConfig
);
if(FAILED(hr))
{
*pdwSpeakerConfig = DSSPEAKER_STEREO;
}
// Get the speaker type. This property will return failure
// if the registry value doesn't exist.
SpeakerType.DeviceId = guid;
SpeakerType.SubKeyName = REG_KEY_SPEAKERTYPE;
SpeakerType.ValueName = REG_KEY_SPEAKERTYPE;
SpeakerType.RegistryDataType = REG_DWORD;
SpeakerType.Data = pdwSpeakerType;
SpeakerType.DataSize = sizeof(pdwSpeakerType);
hrSpeakerType =
pKsPropertySet->Get
(
DSPROPSETID_DirectSoundPersistentData,
DSPROPERTY_DIRECTSOUNDPERSISTENTDATA_PERSISTDATA,
NULL,
0,
&SpeakerType,
sizeof(SpeakerType),
NULL
);
if(FAILED(hrSpeakerType))
{
*pdwSpeakerType = SPEAKERS_DEFAULT_TYPE;
}
}
// Clean up
DSCleanup
(
pKsPropertySet,
pDirectSound,
pDirectSoundCapture
);
return hr;
}
HRESULT
DSGetCplValues
(
IN GUID guid,
IN BOOL fRecord,
OUT LPCPLDATA pData
)
{
HRESULT hr;
// Get the basic HW acceleration level.
pData->dwHWLevel = gAudData.dwDefaultHWLevel;
hr = DSGetAcceleration
(
guid,
fRecord,
&pData->dwHWLevel
);
// Get the mixer SRC quality.
pData->dwSRCLevel = DEFAULT_SRC_LEVEL;
hr = DSGetSrcQuality
(
guid,
fRecord,
&pData->dwSRCLevel
);
// Get playback-specific settings
if(!fRecord)
{
// Get the speaker config
pData->dwSpeakerConfig = DSSPEAKER_STEREO;
pData->dwSpeakerType = SPEAKERS_DEFAULT_TYPE;
hr = DSGetSpeakerConfigType
(
guid,
fRecord,
&pData->dwSpeakerConfig,
&pData->dwSpeakerType
);
}
return DS_OK;
}
HRESULT
DSSetAcceleration
(
IN GUID guid,
IN BOOL fRecord,
IN DWORD dwHWLevel
)
{
LPKSPROPERTYSET pKsPropertySet = NULL;
LPDIRECTSOUND pDirectSound = NULL;
LPDIRECTSOUNDCAPTURE pDirectSoundCapture = NULL;
HRESULT hr;
DSPROPERTY_DIRECTSOUNDBASICACCELERATION_ACCELERATION_DATA
BasicAcceleration;
// Find the necessary DirectSound functions
hr = DSInitialize(guid, fRecord, &pKsPropertySet, &pDirectSound, &pDirectSoundCapture );
// Get properties for this device
if(SUCCEEDED(hr))
{
BasicAcceleration.DeviceId = guid;
BasicAcceleration.Level = (DIRECTSOUNDBASICACCELERATION_LEVEL)dwHWLevel;
// Set the basic HW acceleration level
hr =
pKsPropertySet->Set
(
DSPROPSETID_DirectSoundBasicAcceleration,
DSPROPERTY_DIRECTSOUNDBASICACCELERATION_ACCELERATION,
NULL,
0,
&BasicAcceleration,
sizeof(BasicAcceleration)
);
}
// Clean up
DSCleanup
(
pKsPropertySet,
pDirectSound,
pDirectSoundCapture
);
return hr;
}
HRESULT
DSSetSrcQuality
(
IN GUID guid,
IN BOOL fRecord,
IN DWORD dwSRCLevel
)
{
LPKSPROPERTYSET pKsPropertySet = NULL;
LPDIRECTSOUND pDirectSound = NULL;
LPDIRECTSOUNDCAPTURE pDirectSoundCapture = NULL;
HRESULT hr;
DSPROPERTY_DIRECTSOUNDMIXER_SRCQUALITY_DATA
SrcQuality;
// Find the necessary DirectSound functions
hr = DSInitialize(guid, fRecord, &pKsPropertySet, &pDirectSound, &pDirectSoundCapture );
// Get properties for this device
if(SUCCEEDED(hr))
{
SrcQuality.DeviceId = guid;
// The CPL only uses the 3 highest of 4 possible SRC values
SrcQuality.Quality = (DIRECTSOUNDMIXER_SRCQUALITY)(dwSRCLevel + 1);
// Set the mixer SRC quality
hr =
pKsPropertySet->Set
(
DSPROPSETID_DirectSoundMixer,
DSPROPERTY_DIRECTSOUNDMIXER_SRCQUALITY,
NULL,
0,
&SrcQuality,
sizeof(SrcQuality)
);
}
// Clean up
DSCleanup
(
pKsPropertySet,
pDirectSound,
pDirectSoundCapture
);
return hr;
}
HRESULT
DSSetSpeakerConfigType
(
IN GUID guid,
IN BOOL fRecord,
IN DWORD dwSpeakerConfig,
IN DWORD dwSpeakerType
)
{
LPKSPROPERTYSET pKsPropertySet = NULL;
LPDIRECTSOUND pDirectSound = NULL;
LPDIRECTSOUNDCAPTURE pDirectSoundCapture = NULL;
HRESULT hr = DS_OK;
DSPROPERTY_DIRECTSOUNDPERSISTENTDATA_PERSISTDATA_DATA
SpeakerType;
// Can't set the speaker type if we're recording
if(fRecord)
{
hr = E_INVALIDARG;
}
// Find the necessary DirectSound functions
if(SUCCEEDED(hr))
{
hr = DSInitialize(guid, fRecord, &pKsPropertySet, &pDirectSound, &pDirectSoundCapture );
}
// Set the speaker config
if(SUCCEEDED(hr))
{
hr =
pDirectSound->SetSpeakerConfig
(
dwSpeakerConfig
);
}
// Set the speaker type
if(SUCCEEDED(hr))
{
SpeakerType.DeviceId = guid;
SpeakerType.SubKeyName = REG_KEY_SPEAKERTYPE;
SpeakerType.ValueName = REG_KEY_SPEAKERTYPE;
SpeakerType.RegistryDataType = REG_DWORD;
SpeakerType.Data = &dwSpeakerType;
SpeakerType.DataSize = sizeof(dwSpeakerType);
hr =
pKsPropertySet->Set
(
DSPROPSETID_DirectSoundPersistentData,
DSPROPERTY_DIRECTSOUNDPERSISTENTDATA_PERSISTDATA,
NULL,
0,
&SpeakerType,
sizeof(SpeakerType)
);
}
// Clean up
DSCleanup
(
pKsPropertySet,
pDirectSound,
pDirectSoundCapture
);
return hr;
}
HRESULT
DSSetCplValues
(
IN GUID guid,
IN BOOL fRecord,
IN const LPCPLDATA pData
)
{
HRESULT hr;
// Set the basic HW acceleration level
hr =
DSSetAcceleration
(
guid,
fRecord,
pData->dwHWLevel
);
// Set the mixer SRC quality
if(SUCCEEDED(hr))
{
hr =
DSSetSrcQuality
(
guid,
fRecord,
pData->dwSRCLevel // +1 is done in DSSetSrcQuality
);
}
// Set the speaker config
if(SUCCEEDED(hr) && !fRecord)
{
DSSetSpeakerConfigType
(
guid,
fRecord,
pData->dwSpeakerConfig,
pData->dwSpeakerType
);
}
return hr;
}