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quartz: Simplify FilterMapper_RegisterPinType(). 

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 16:30:50 -06:00 committed by Alexandre Julliard
parent 4897610866
commit e44948a2c2
1 changed files with 29 additions and 67 deletions
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96
dlls/quartz/filtermapper.c
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@ -1214,81 +1214,43 @@ static HRESULT WINAPI FilterMapper_RegisterPin(IFilterMapper *iface, CLSID clsid
}
static HRESULT WINAPI FilterMapper_RegisterPinType(
IFilterMapper * iface,
CLSID clsFilter,
LPCWSTR szName,
CLSID clsMajorType,
CLSID clsSubType)
static HRESULT WINAPI FilterMapper_RegisterPinType(IFilterMapper *iface,
CLSID clsid, const WCHAR *pin, CLSID majortype, CLSID subtype)
{
HRESULT hr;
LONG lRet;
LPWSTR wszClsid = NULL;
LPWSTR wszClsidMajorType = NULL;
LPWSTR wszClsidSubType = NULL;
HKEY hKey = NULL;
WCHAR * wszTypesKey;
WCHAR wszKeyName[MAX_PATH];
WCHAR *keypath, type_keypath[38 + 1 + 38 + 1];
HKEY key, type_key;
size_t len;
LONG ret;
TRACE("(%p)->(%s, %s, %s, %s)\n", iface, debugstr_guid(&clsFilter), debugstr_w(szName),
debugstr_guid(&clsMajorType), debugstr_guid(&clsSubType));
TRACE("iface %p, clsid %s, pin %s, majortype %s, subtype %s.\n", iface,
debugstr_guid(&clsid), debugstr_w(pin), debugstr_guid(&majortype), debugstr_guid(&subtype));
hr = StringFromCLSID(&clsFilter, &wszClsid);
len = 6 + 38 + 6 + wcslen(pin) + 6 + 1;
if (!(keypath = malloc(len * sizeof(WCHAR))))
return E_OUTOFMEMORY;
if (SUCCEEDED(hr))
wcscpy(keypath, L"CLSID\\");
StringFromGUID2(&clsid, keypath + wcslen(keypath), len - wcslen(keypath));
wcscat(keypath, L"\\Pins\\");
wcscat(keypath, pin);
wcscat(keypath, L"\\Types");
if ((ret = RegOpenKeyExW(HKEY_CLASSES_ROOT, keypath, 0, KEY_CREATE_SUB_KEY, &key)))
{
hr = StringFromCLSID(&clsMajorType, &wszClsidMajorType);
free(keypath);
return HRESULT_FROM_WIN32(ret);
}
free(keypath);
if (SUCCEEDED(hr))
{
hr = StringFromCLSID(&clsSubType, &wszClsidSubType);
}
StringFromGUID2(&majortype, type_keypath, ARRAY_SIZE(type_keypath));
wcscat(type_keypath, L"\\");
StringFromGUID2(&subtype, type_keypath + wcslen(type_keypath), ARRAY_SIZE(type_keypath) - wcslen(type_keypath));
if (!(ret = RegCreateKeyExW(key, type_keypath, 0, NULL, 0, 0, NULL, &type_key, NULL)))
RegCloseKey(type_key);
else
ERR("Failed to create type key, error %u.\n", ret);
if (SUCCEEDED(hr))
{
wszTypesKey = CoTaskMemAlloc((lstrlenW(wszClsidSlash) + lstrlenW(wszClsid) + lstrlenW(wszPins) +
lstrlenW(szName) + lstrlenW(wszTypes) + 3 + 1) * 2);
if (!wszTypesKey)
hr = E_OUTOFMEMORY;
}
if (SUCCEEDED(hr))
{
lstrcpyW(wszTypesKey, wszClsidSlash);
lstrcatW(wszTypesKey, wszClsid);
lstrcatW(wszTypesKey, wszSlash);
lstrcatW(wszTypesKey, wszPins);
lstrcatW(wszTypesKey, wszSlash);
lstrcatW(wszTypesKey, szName);
lstrcatW(wszTypesKey, wszSlash);
lstrcatW(wszTypesKey, wszTypes);
lRet = RegOpenKeyExW(HKEY_CLASSES_ROOT, wszTypesKey, 0, KEY_WRITE, &hKey);
hr = HRESULT_FROM_WIN32(lRet);
CoTaskMemFree(wszTypesKey);
}
if (SUCCEEDED(hr))
{
HKEY hkeyDummy = NULL;
lstrcpyW(wszKeyName, wszClsidMajorType);
lstrcatW(wszKeyName, wszSlash);
lstrcatW(wszKeyName, wszClsidSubType);
lRet = RegCreateKeyExW(hKey, wszKeyName, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hkeyDummy, NULL);
hr = HRESULT_FROM_WIN32(lRet);
RegCloseKey(hKey);
if (hkeyDummy) RegCloseKey(hkeyDummy);
}
CoTaskMemFree(wszClsid);
CoTaskMemFree(wszClsidMajorType);
CoTaskMemFree(wszClsidSubType);
return hr;
RegCloseKey(key);
return HRESULT_FROM_WIN32(ret);
}
static HRESULT WINAPI FilterMapper_UnregisterFilter(IFilterMapper * iface, CLSID Filter)