[idd] audio: add virtual playback and capture driver

Add a WaveRT adapter with render and capture endpoints backed by a
local ring buffer and shared presentation clock.

Advertise PCM formats through 192 kHz, eight channels, and packed
24-bit samples. Register LGAudio in the IDD solution and package it as
Looking Glass Audio.

idd/LGAudio/LGAudio.inx

@@ -0,0 +1,125 @@
+[Version]
+Signature="$Windows NT$"
+Class=MEDIA
+ClassGuid={4D36E96C-E325-11CE-BFC1-08002BE10318}
+Provider=%ProviderName%
+DriverVer=08/21/2026,0.1.0.0
+CatalogFile=LGAudio.cat
+PnpLockDown=1
+
+[SourceDisksNames]
+1=%DiskName%,,,
+
+[SourceDisksFiles]
+LGAudio.sys=1
+
+[Manufacturer]
+%ManufacturerName%=LGAudio,NT$ARCH$.10.0...16299
+
+[LGAudio.NT$ARCH$.10.0...16299]
+%DeviceName%=LGAudio_Device,Root\LGAudio
+
+[DestinationDirs]
+LGAudio_CopyFiles=13
+
+[LGAudio_CopyFiles]
+LGAudio.sys
+
+[LGAudio_Device.NT]
+Include=ks.inf,wdmaudio.inf
+Needs=KS.Registration,WDMAUDIO.Registration
+CopyFiles=LGAudio_CopyFiles
+AddReg=LGAudio_Device.AddReg
+
+[LGAudio_Device.AddReg]
+HKR,,AssociatedFilters,,"wdmaud,swmidi,redbook"
+HKR,,Driver,,LGAudio.sys
+HKR,Drivers,SubClasses,,"wave,midi,mixer"
+HKR,Drivers\wave\wdmaud.drv,Driver,,wdmaud.drv
+HKR,Drivers\midi\wdmaud.drv,Driver,,wdmaud.drv
+HKR,Drivers\mixer\wdmaud.drv,Driver,,wdmaud.drv
+HKR,Drivers\wave\wdmaud.drv,Description,,%DeviceName%
+HKR,Drivers\mixer\wdmaud.drv,Description,,%DeviceName%
+
+[LGAudio_Device.NT.Interfaces]
+AddInterface=%KSCATEGORY_AUDIO%,%KSNAME_WaveRender%,LGAudio.WaveRender
+AddInterface=%KSCATEGORY_RENDER%,%KSNAME_WaveRender%,LGAudio.WaveRender
+AddInterface=%KSCATEGORY_REALTIME%,%KSNAME_WaveRender%,LGAudio.WaveRender
+AddInterface=%KSCATEGORY_AUDIO%,%KSNAME_TopologyRender%,LGAudio.TopologyRender
+AddInterface=%KSCATEGORY_TOPOLOGY%,%KSNAME_TopologyRender%,LGAudio.TopologyRender
+AddInterface=%KSCATEGORY_AUDIO%,%KSNAME_WaveCapture%,LGAudio.WaveCapture
+AddInterface=%KSCATEGORY_CAPTURE%,%KSNAME_WaveCapture%,LGAudio.WaveCapture
+AddInterface=%KSCATEGORY_REALTIME%,%KSNAME_WaveCapture%,LGAudio.WaveCapture
+AddInterface=%KSCATEGORY_AUDIO%,%KSNAME_TopologyCapture%,LGAudio.TopologyCapture
+AddInterface=%KSCATEGORY_TOPOLOGY%,%KSNAME_TopologyCapture%,LGAudio.TopologyCapture
+
+[LGAudio.WaveRender]
+AddReg=LGAudio.WaveRender.AddReg
+
+[LGAudio.WaveRender.AddReg]
+HKR,,CLSID,,%Proxy.CLSID%
+HKR,,FriendlyName,,%EndpointName%
+
+[LGAudio.TopologyRender]
+AddReg=LGAudio.TopologyRender.AddReg
+
+[LGAudio.TopologyRender.AddReg]
+HKR,,CLSID,,%Proxy.CLSID%
+HKR,,FriendlyName,,%EndpointName%
+HKR,EP\0,%PKEY_AudioEndpoint_Association%,,%KSNODETYPE_ANY%
+HKR,EP\0,%PKEY_AudioEndpoint_Supports_EventDriven_Mode%,0x00010001,1
+
+[LGAudio.WaveCapture]
+AddReg=LGAudio.WaveCapture.AddReg
+
+[LGAudio.WaveCapture.AddReg]
+HKR,,CLSID,,%Proxy.CLSID%
+HKR,,FriendlyName,,%EndpointName%
+
+[LGAudio.TopologyCapture]
+AddReg=LGAudio.TopologyCapture.AddReg
+
+[LGAudio.TopologyCapture.AddReg]
+HKR,,CLSID,,%Proxy.CLSID%
+HKR,,FriendlyName,,%EndpointName%
+HKR,EP\0,%PKEY_AudioEndpoint_Association%,,%KSNODETYPE_ANY%
+HKR,EP\0,%PKEY_AudioEndpoint_Supports_EventDriven_Mode%,0x00010001,1
+
+[LGAudio_Device.NT.Services]
+AddService=LGAudio,0x00000002,LGAudio_Service
+
+[LGAudio_Service]
+DisplayName=%ServiceName%
+ServiceType=1
+StartType=3
+ErrorControl=1
+ServiceBinary=%13%\LGAudio.sys
+
+[LGAudio_Device.NT.HW]
+AddReg=LGAudio_HardwareSettings
+
+[LGAudio_HardwareSettings]
+HKR,,DeviceType,0x00010001,0x0000001D
+HKR,,Security,,"D:P(A;;GA;;;SY)(A;;GRGWGX;;;BA)(A;;GRGWGX;;;WD)(A;;GRGWGX;;;RC)"
+
+[Strings]
+ProviderName="Looking Glass"
+ManufacturerName="Looking Glass"
+DiskName="Looking Glass Audio Installation Disk"
+DeviceName="Looking Glass Audio"
+EndpointName="Looking Glass Audio"
+ServiceName="Looking Glass Audio Driver"
+
+KSNAME_WaveRender="WaveRender"
+KSNAME_TopologyRender="TopologyRender"
+KSNAME_WaveCapture="WaveCapture"
+KSNAME_TopologyCapture="TopologyCapture"
+Proxy.CLSID="{17CCA71B-ECD7-11D0-B908-00A0C9223196}"
+KSCATEGORY_AUDIO="{6994AD04-93EF-11D0-A3CC-00A0C9223196}"
+KSCATEGORY_RENDER="{65E8773E-8F56-11D0-A3B9-00A0C9223196}"
+KSCATEGORY_CAPTURE="{65E8773D-8F56-11D0-A3B9-00A0C9223196}"
+KSCATEGORY_REALTIME="{EB115FFC-10C8-4964-831D-6DCB02E6F23F}"
+KSCATEGORY_TOPOLOGY="{DDA54A40-1E4C-11D1-A050-405705C10000}"
+KSNODETYPE_ANY="{00000000-0000-0000-0000-000000000000}"
+PKEY_AudioEndpoint_Association="{1DA5D803-D492-4EDD-8C23-E0C0FFEE7F0E},2"
+PKEY_AudioEndpoint_Supports_EventDriven_Mode="{1DA5D803-D492-4EDD-8C23-E0C0FFEE7F0E},7"