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quartz: Simplify FilterMapper_UnregisterPin(). 

Avoid some unnecessary allocations.

Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2020-01-22 16:30:52 -06:00 committed by Alexandre Julliard
parent 021354c554
commit c947dab09d
1 changed files with 15 additions and 45 deletions
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60
dlls/quartz/filtermapper.c
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@ -72,9 +72,6 @@ static inline FilterMapper3Impl *impl_from_IUnknown( IUnknown *iface )
return CONTAINING_RECORD(iface, FilterMapper3Impl, IUnknown_inner);
}
static const WCHAR wszClsidSlash[] = {'C','L','S','I','D','\\',0};
static const WCHAR wszSlash[] = {'\\',0};
/* CLSID property in media category Moniker */
static const WCHAR wszClsidName[] = {'C','L','S','I','D',0};
/* FriendlyName property in media category Moniker */
@ -83,8 +80,6 @@ static const WCHAR wszFriendlyName[] = {'F','r','i','e','n','d','l','y','N','a',
static const WCHAR wszMeritName[] = {'M','e','r','i','t',0};
/* FilterData property in media category Moniker (not CLSID_ActiveMovieCategories) */
static const WCHAR wszFilterDataName[] = {'F','i','l','t','e','r','D','a','t','a',0};
/* For pins registered with IFilterMapper */
static const WCHAR wszPins[] = {'P','i','n','s',0};
/* registry format for REGFILTER2 */
@ -1290,54 +1285,29 @@ static HRESULT WINAPI FilterMapper_UnregisterFilterInstance(IFilterMapper * ifac
return E_NOTIMPL;
}
static HRESULT WINAPI FilterMapper_UnregisterPin(IFilterMapper * iface, CLSID Filter, LPCWSTR Name)
static HRESULT WINAPI FilterMapper_UnregisterPin(IFilterMapper * iface, CLSID clsid, const WCHAR *name)
{
HRESULT hr;
LONG lRet;
LPWSTR wszClsid = NULL;
HKEY hKey = NULL;
WCHAR * wszPinNameKey;
WCHAR wszKeyName[ARRAY_SIZE(wszClsidSlash)-1 + (CHARS_IN_GUID-1) + 1];
WCHAR keypath[6 + 38 + 5 + 1];
LONG ret;
HKEY key;
TRACE("(%p)->(%s, %s)\n", iface, debugstr_guid(&Filter), debugstr_w(Name));
TRACE("iface %p, clsid %s, name %s.\n", iface, debugstr_guid(&clsid), debugstr_w(name));
if (!Name)
if (!name)
return E_INVALIDARG;
hr = StringFromCLSID(&Filter, &wszClsid);
wcscpy(keypath, L"CLSID\\");
StringFromGUID2(&clsid, keypath + wcslen(keypath), ARRAY_SIZE(keypath) - wcslen(keypath));
wcscat(keypath, L"\\Pins");
if ((ret = RegOpenKeyExW(HKEY_CLASSES_ROOT, keypath, 0, 0, &key)))
return HRESULT_FROM_WIN32(ret);
if (SUCCEEDED(hr))
{
lstrcpyW(wszKeyName, wszClsidSlash);
lstrcatW(wszKeyName, wszClsid);
if ((ret = RegDeleteTreeW(key, name)))
ERR("Failed to delete subkey, error %u.\n", ret);
lRet = RegOpenKeyExW(HKEY_CLASSES_ROOT, wszKeyName, 0, KEY_WRITE, &hKey);
hr = HRESULT_FROM_WIN32(lRet);
}
RegCloseKey(key);
if (SUCCEEDED(hr))
{
wszPinNameKey = CoTaskMemAlloc((lstrlenW(wszPins) + 1 + lstrlenW(Name) + 1) * 2);
if (!wszPinNameKey)
hr = E_OUTOFMEMORY;
}
if (SUCCEEDED(hr))
{
lstrcpyW(wszPinNameKey, wszPins);
lstrcatW(wszPinNameKey, wszSlash);
lstrcatW(wszPinNameKey, Name);
lRet = RegDeleteTreeW(hKey, wszPinNameKey);
hr = HRESULT_FROM_WIN32(lRet);
CoTaskMemFree(wszPinNameKey);
}
CoTaskMemFree(wszClsid);
if (hKey)
RegCloseKey(hKey);
return hr;
return S_OK;
}
static const IFilterMapperVtbl fmvtbl =