windows-nt/Source/XPSP1/NT/drivers/wdm/audio/sysaudio/vsl.h

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2020-09-26 03:20:57 -05:00
//---------------------------------------------------------------------------
//
// Module: vsl.h
//
// Description: Virtual Source Line Class
//
//
//@@BEGIN_MSINTERNAL
// Development Team:
// Mike McLaughlin
//
// History: Date Author Comment
//
//@@END_MSINTERNAL
//---------------------------------------------------------------------------
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
// Copyright (c) 1996-1999 Microsoft Corporation. All Rights Reserved.
//
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
// Constants and Macros
//---------------------------------------------------------------------------
#define VSL_FLAGS_CREATE_ONLY 0x00000001
//---------------------------------------------------------------------------
// Classes
//---------------------------------------------------------------------------
typedef class CVirtualSourceLine : public CListSingleItem
{
public:
CVirtualSourceLine(
PSYSAUDIO_CREATE_VIRTUAL_SOURCE pCreateVirtualSource
);
~CVirtualSourceLine(
);
#ifdef DEBUG
ENUMFUNC Dump(
)
{
dprintf("VSL: %08x i %d ulFlags %08x ", this, iVirtualSource, ulFlags);
if(ulFlags & VSL_FLAGS_CREATE_ONLY) {
dprintf("CREATE_ONLY ");
}
dprintf("\n guidCategory: %s\n", DbgGuid2Sz(&guidCategory));
dprintf(" guidName: %s\n", DbgGuid2Sz(&guidName));
return(STATUS_CONTINUE);
};
#endif
ENUMFUNC Destroy(
)
{
Assert(this);
delete this;
return(STATUS_CONTINUE);
};
GUID guidCategory;
GUID guidName;
ULONG iVirtualSource;
ULONG ulFlags;
DefineSignature(0x204C5356); // VSL
} VIRTUAL_SOURCE_LINE, *PVIRTUAL_SOURCE_LINE;
//---------------------------------------------------------------------------
typedef ListSingleDestroy<VIRTUAL_SOURCE_LINE> LIST_VIRTUAL_SOURCE_LINE;
typedef LIST_VIRTUAL_SOURCE_LINE *PLIST_VIRTUAL_SOURCE_LINE;
//---------------------------------------------------------------------------
// Globals
//---------------------------------------------------------------------------
extern PLIST_VIRTUAL_SOURCE_LINE gplstVirtualSourceLine;
extern ULONG gcVirtualSources;
//---------------------------------------------------------------------------
// Local prototypes
//---------------------------------------------------------------------------
NTSTATUS
InitializeVirtualSourceLine(
);
VOID
UninitializeVirtualSourceLine(
);