[janderwald] 44873: [WDMAUD.DRV] - Implement AllocEventData, FreeEventData for mmixer library

Author: janderwald
Date: Sat Jan  2 02:53:22 2010
New Revision: 44873

URL: http://svn.reactos.org/svn/reactos?rev=44873&view=rev
Log:
[WDMAUD.DRV]
- Implement AllocEventData, FreeEventData for mmixer library

Modified:
    trunk/reactos/dll/win32/wdmaud.drv/mmixer.c
    trunk/reactos/dll/win32/wdmaud.drv/wdmaud.rbuild

Modified: trunk/reactos/dll/win32/wdmaud.drv/mmixer.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/wdmaud.drv/mmixer...
==============================================================================
--- trunk/reactos/dll/win32/wdmaud.drv/mmixer.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/wdmaud.drv/mmixer.c [iso-8859-1] Sat Jan  2 02:53:22 2010
@@ -20,6 +20,8 @@
 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 @@
     Copy,
     OpenKey,
     QueryKeyValue,
-    CloseKey
+    CloseKey,
+    AllocEventData,
+    FreeEventData
 };

GUID CategoryGuid = {STATIC_KSCATEGORY_AUDIO};
@@ -284,6 +288,35 @@

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()

Modified: trunk/reactos/dll/win32/wdmaud.drv/wdmaud.rbuild
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/wdmaud.drv/wdmaud...
==============================================================================
--- trunk/reactos/dll/win32/wdmaud.drv/wdmaud.rbuild [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/wdmaud.drv/wdmaud.rbuild [iso-8859-1] Sat Jan  2 02:53:22 2010
@@ -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>