[janderwald] 73017: - implement MMixerGetDeviceNameWithComponentId, which retrieves the device name via component id - start implement MMixerHandleTopologyFilter, does not yet fully work

Author: janderwald
Date: Fri Oct 21 21:26:12 2016
New Revision: 73017

URL: http://svn.reactos.org/svn/reactos?rev=73017&view=rev
Log:
- implement MMixerGetDeviceNameWithComponentId, which retrieves the device name via
component id
- start implement MMixerHandleTopologyFilter, does not yet fully work

Modified:
    trunk/reactos/sdk/lib/drivers/sound/mmixer/controls.c
    trunk/reactos/sdk/lib/drivers/sound/mmixer/precomp.h
    trunk/reactos/sdk/lib/drivers/sound/mmixer/sup.c

Modified: trunk/reactos/sdk/lib/drivers/sound/mmixer/controls.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/sdk/lib/drivers/sound/mmix…
==============================================================================
--- trunk/reactos/sdk/lib/drivers/sound/mmixer/controls.c	[iso-8859-1] (original)
+++ trunk/reactos/sdk/lib/drivers/sound/mmixer/controls.c	[iso-8859-1] Fri Oct 21 21:26:12
2016
@@ -1269,6 +1269,110 @@
 }
 
 MIXER_STATUS
+MMixerHandleTopologyFilter(
+    IN PMIXER_CONTEXT MixerContext,
+    IN PMIXER_LIST MixerList,
+    IN LPMIXER_DATA MixerData,
+    IN OUT LPMIXER_INFO MixerInfo,
+    IN ULONG bInput,
+    IN ULONG Pin)
+{
+    MIXER_STATUS Status;
+    ULONG PinsCount, LineTerminator, DestinationLineID;
+    PULONG Pins;
+    PTOPOLOGY Topology;
+
+    /* re-use existing topology */
+    Topology = MixerData->Topology;
+
+    if (!bInput)
+    {
+        /* allocate pin index array which will hold all referenced pins */
+        Status = MMixerAllocateTopologyPinArray(MixerContext, Topology, &Pins);
+        if (Status != MM_STATUS_SUCCESS)
+        {
+            /* failed to create topology */
+            return Status;
+        }
+
+        /* the mixer is an output mixer
+        * find end pin of the node path
+        */
+        PinsCount = 0;
+        Status = MMixerGetAllUpOrDownstreamPinsFromPinIndex(MixerContext, Topology, Pin,
FALSE, &PinsCount, Pins);
+
+        /* check for success */
+        if (Status != MM_STATUS_SUCCESS)
+        {
+            /* failed to get end pin */
+            MixerContext->Free(Pins);
+            //MMixerFreeTopology(Topology);
+
+            /* return error code */
+            return Status;
+        }
+        /* HACK:
+        * some topologies do not have strict boundaries
+        * WorkArround: remove all pin ids which have a physical connection
+        * because bridge pins may belong to different render paths
+        */
+        MMixerApplyOutputFilterHack(MixerContext, MixerData, MixerData->hDevice,
&PinsCount, Pins);
+
+        /* sanity checks */
+        ASSERT(PinsCount != 0);
+        if (PinsCount != 1)
+        {
+            DPRINT1("MMixerHandlePhysicalConnection Expected 1 pin but got
%lu\n", PinsCount);
+        }
+
+        /* create destination line */
+        Status = MMixerBuildMixerDestinationLine(MixerContext, MixerInfo,
MixerData->hDevice, Pins[0], bInput);
+
+        /* calculate destination line id */
+        DestinationLineID = (DESTINATION_LINE + MixerInfo->MixCaps.cDestinations -
1);
+
+        if (Status != MM_STATUS_SUCCESS)
+        {
+            /* failed to build destination line */
+            MixerContext->Free(Pins);
+
+            /* return error code */
+            return Status;
+        }
+
+        /* add mixer controls to destination line */
+        Status = MMixerAddMixerControlsToDestinationLine(MixerContext, MixerInfo,
MixerData->hDevice, Topology, Pins[0], bInput, DestinationLineID,
&LineTerminator);
+
+        if (Status == MM_STATUS_SUCCESS)
+        {
+            /* now add the rest of the source lines */
+            Status = MMixerAddMixerSourceLines(MixerContext, MixerInfo,
MixerData->hDevice, Topology, DestinationLineID, LineTerminator);
+        }
+
+        /* mark pin as consumed */
+        MMixerSetTopologyPinReserved(Topology, Pins[0]);
+
+        /* free topology pin array */
+        MixerContext->Free(Pins);
+    }
+    else
+    {
+        /* calculate destination line id */
+        DestinationLineID = (DESTINATION_LINE + MixerInfo->MixCaps.cDestinations -
1);
+
+        /* add mixer controls */
+        Status = MMixerAddMixerControlsToDestinationLine(MixerContext, MixerInfo,
MixerData->hDevice, Topology, Pin, bInput, DestinationLineID, &LineTerminator);
+
+        if (Status == MM_STATUS_SUCCESS)
+        {
+            /* now add the rest of the source lines */
+            Status = MMixerAddMixerSourceLines(MixerContext, MixerInfo,
MixerData->hDevice, Topology, DestinationLineID, LineTerminator);
+        }
+    }
+    return Status;
+}
+
+MIXER_STATUS
 MMixerHandlePhysicalConnection(
     IN PMIXER_CONTEXT MixerContext,
     IN PMIXER_LIST MixerList,
@@ -1450,7 +1554,12 @@
         MixerInfo->MixCaps.cDestinations = 0;
 
         /* get mixer name */
-        MMixerGetDeviceName(MixerContext, MixerInfo->MixCaps.szPname,
MixerData->hDeviceInterfaceKey);
+        Status = MMixerGetDeviceName(MixerContext, MixerInfo->MixCaps.szPname,
MixerData->hDeviceInterfaceKey);
+        if (Status != MM_STATUS_SUCCESS)
+        {
+            /* try get name with component id */
+            Status = MMixerGetDeviceNameWithComponentId(MixerContext,
MixerData->hDevice, MixerInfo->MixCaps.szPname);
+        }
 
         /* initialize line list */
         InitializeListHead(&MixerInfo->LineList);
@@ -1546,10 +1655,8 @@
     }
     else
     {
-        /* FIXME
-         * handle drivers which expose their topology on the same filter
-         */
-        ASSERT(0);
+        /* topology is on the same filter */
+        Status = MMixerHandleTopologyFilter(MixerContext, MixerList, MixerData,
MixerInfo, bInputMixer, Pins[0]);
     }
 
     /* free pins */

Modified: trunk/reactos/sdk/lib/drivers/sound/mmixer/precomp.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/sdk/lib/drivers/sound/mmix…
==============================================================================
--- trunk/reactos/sdk/lib/drivers/sound/mmixer/precomp.h	[iso-8859-1] (original)
+++ trunk/reactos/sdk/lib/drivers/sound/mmixer/precomp.h	[iso-8859-1] Fri Oct 21 21:26:12
2016
@@ -359,6 +359,12 @@
     OUT LPWSTR DeviceName,
     IN HANDLE hKey);
 
+MIXER_STATUS
+MMixerGetDeviceNameWithComponentId(
+    IN PMIXER_CONTEXT MixerContext,
+    IN HANDLE hMixer,
+    OUT LPWSTR DeviceName);
+
 VOID
 MMixerInitializePinConnect(
     IN OUT PKSPIN_CONNECT PinConnect,

Modified: trunk/reactos/sdk/lib/drivers/sound/mmixer/sup.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/sdk/lib/drivers/sound/mmix…
==============================================================================
--- trunk/reactos/sdk/lib/drivers/sound/mmixer/sup.c	[iso-8859-1] (original)
+++ trunk/reactos/sdk/lib/drivers/sound/mmixer/sup.c	[iso-8859-1] Fri Oct 21 21:26:12
2016
@@ -802,6 +802,53 @@
 }
 
 MIXER_STATUS
+MMixerGetDeviceNameWithComponentId(
+    IN PMIXER_CONTEXT MixerContext,
+    IN HANDLE hMixer,
+    OUT LPWSTR OutDeviceName)
+{
+    MIXER_STATUS Status;
+    KSPROPERTY Property;
+    KSCOMPONENTID ComponentId;
+    ULONG Length;
+    UNICODE_STRING GuidString;
+    ULONG ResultLength, KeyType;
+    HANDLE hMediaKey, hGuidKey;
+    LPWSTR DeviceName;
+
+    /* prepare property */
+    Property.Flags = KSPROPERTY_TYPE_GET;
+    Property.Set = KSPROPSETID_General;
+    Property.Id = KSPROPERTY_GENERAL_COMPONENTID;
+
+    /* try get component id */
+    Status = MixerContext->Control(hMixer, IOCTL_KS_PROPERTY, (PVOID)&Property,
sizeof(KSPROPERTY), &ComponentId, sizeof(KSCOMPONENTID), &Length);
+
+    if (Status == MM_STATUS_SUCCESS)
+    {
+        Status = MixerContext->OpenKey(NULL,
L"\\Registry\\Machine\\SYSTEM\\CurrentControlSet\\Control\\MediaCategories",
KEY_READ, &hMediaKey);
+        if (Status == MM_STATUS_SUCCESS)
+        {
+            RtlStringFromGUID(&ComponentId.Name, &GuidString);
+            Status = MixerContext->OpenKey(hMediaKey, GuidString.Buffer, KEY_READ,
&hGuidKey);
+            RtlFreeUnicodeString(&GuidString);
+            if (Status == MM_STATUS_SUCCESS)
+            {
+                Status = MixerContext->QueryKeyValue(hGuidKey, L"Name",
(PVOID*)&DeviceName, &ResultLength, &KeyType);
+                if (Status == MM_STATUS_SUCCESS)
+                {
+                    MixerContext->Copy(OutDeviceName, DeviceName, min(ResultLength,
(MAXPNAMELEN-1)*2));
+                }
+
+                MixerContext->CloseKey(hGuidKey);
+            }
+            MixerContext->CloseKey(hMediaKey);
+        }
+    }
+    return Status;
+}
+
+MIXER_STATUS
 MMixerGetDeviceName(
     IN PMIXER_CONTEXT MixerContext,
     OUT LPWSTR DeviceName,