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[WDMAUD.DRV]

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- Implement AllocEventData, FreeEventData for mmixer library

svn path=/trunk/; revision=44873
This commit is contained in:
Johannes Anderwald 2010-01-02 01:53:22 +00:00
parent c42d9f27cc
commit 70d4997811
2 changed files with 35 additions and 2 deletions
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35
reactos/dll/win32/wdmaud.drv/mmixer.c
View file

@ -20,6 +20,8 @@ MIXER_STATUS Enum(IN PVOID EnumContext, IN ULONG DeviceIndex, OUT LPWSTR * Dev
MIXER_STATUS OpenKey(IN HANDLE hKey, IN LPWSTR SubKey, IN ULONG DesiredAccess, OUT PHANDLE OutKey);
MIXER_STATUS CloseKey(IN HANDLE hKey);
MIXER_STATUS QueryKeyValue(IN HANDLE hKey, IN LPWSTR KeyName, OUT PVOID * ResultBuffer, OUT PULONG ResultLength, OUT PULONG KeyType);
PVOID AllocEventData(IN ULONG ExtraSize);
VOID FreeEventData(IN PVOID EventData);
MIXER_CONTEXT MixerContext =
{
@ -33,7 +35,9 @@ MIXER_CONTEXT MixerContext =
Copy,
OpenKey,
QueryKeyValue,
CloseKey
CloseKey,
AllocEventData,
FreeEventData
};
GUID CategoryGuid = {STATIC_KSCATEGORY_AUDIO};
@ -285,6 +289,35 @@ Enum(
return Status;
}
PVOID
AllocEventData(
IN ULONG ExtraSize)
{
PKSEVENTDATA Data = (PKSEVENTDATA)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(KSEVENTDATA) + ExtraSize);
if (!Data)
return NULL;
Data->EventHandle.Event = CreateEventW(NULL, FALSE, FALSE, NULL);
if (!Data->EventHandle.Event)
{
HeapFree(GetProcessHeap(), 0, Data);
return NULL;
}
Data->NotificationType = KSEVENTF_EVENT_HANDLE;
return Data;
}
VOID
FreeEventData(IN PVOID EventData)
{
PKSEVENTDATA Data = (PKSEVENTDATA)EventData;
CloseHandle(Data->EventHandle.Event);
HeapFree(GetProcessHeap(), 0, Data);
}
BOOL
WdmAudInitUserModeMixer()
{

2
reactos/dll/win32/wdmaud.drv/wdmaud.rbuild
View file

@ -5,7 +5,7 @@
<include base="wdmaud_kernel">.</include>
<include base="mmixer">.</include>
<include base="libsamplerate">.</include>
<!-- <define name="USE_MMIXER_LIB">1</define> Enable this line to bypass wdmaud + sysaudio -->
<define name="USE_MMIXER_LIB">1</define>
<!-- <define name="USERMODE_MIXER">1</define> Enable this line to for usermode mixing support -->
<library>mmebuddy</library>
<library>ntdll</library>