win32: add COM-specific SAFE_RELEASE to windows_utils.h

See: https://msdn.microsoft.com/en-us/library/windows/desktop/dd743946.aspx

Microsoft example code often uses a SAFE_RELEASE macro like the one in
the above link. This makes it easier to avoid errors when releasing COM
interfaces. It also reduces noise in COM-heavy code.

ao_wasapi.h also had a macro called SAFE_RELEASE, though unlike the
version above, its SAFE_RELEASE macro accepted a second parameter which
allowed it to destroy arbitrary objects other than just COM interfaces.
This renames ao_wasapi's SAFE_RELEASE to SAFE_DESTROY, which should more
accurately reflect what it does and prevent confusion with the Microsoft
version.

1 files changed, 1 insertions, 1 deletions

diff --git a/audio/out/ao_wasapi_changenotify.c b/audio/out/ao_wasapi_changenotify.c
index e1b3a9d604..b9806e0adb 100644
--- a/audio/out/ao_wasapi_changenotify.c
+++ b/audio/out/ao_wasapi_changenotify.c
@@ -242,5 +242,5 @@ void wasapi_change_uninit(struct ao *ao)
             change->pEnumerator, (IMMNotificationClient *)change);
     }
 
-    SAFE_RELEASE(change->pEnumerator, IMMDeviceEnumerator_Release(change->pEnumerator));
+    SAFE_RELEASE(change->pEnumerator);
 }