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devenum: Only scan for devices for the requested filter category. 

This matches native behaviour, and greatly reduces the overhead of
IFilterMapper2_EnumMatchingFilters().

Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2018-09-22 20:31:57 -05:00 committed by Alexandre Julliard
parent ec16a92b1d
commit 9316d8ae86
1 changed files with 28 additions and 42 deletions
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56
dlls/devenum/createdevenum.c
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@ -53,7 +53,6 @@ static const WCHAR wszFriendlyName[] = {'F','r','i','e','n','d','l','y','N','a',
static const WCHAR wszFilterData[] = {'F','i','l','t','e','r','D','a','t','a',0};
static ULONG WINAPI DEVENUM_ICreateDevEnum_AddRef(ICreateDevEnum * iface);
static void register_codecs(void);
static HRESULT DEVENUM_CreateAMCategoryKey(const CLSID * clsidCategory);
/**********************************************************************
@ -828,31 +827,42 @@ static void register_avicap_devices(void)
* DEVENUM_ICreateDevEnum_CreateClassEnumerator
*/
static HRESULT WINAPI DEVENUM_ICreateDevEnum_CreateClassEnumerator(
ICreateDevEnum * iface,
REFCLSID clsidDeviceClass,
IEnumMoniker **ppEnumMoniker,
DWORD dwFlags)
ICreateDevEnum *iface, REFCLSID class, IEnumMoniker **out, DWORD flags)
{
WCHAR guidstr[CHARS_IN_GUID];
HRESULT hr;
HKEY key;
TRACE("(%p)->(%s, %p, %x)\n", iface, debugstr_guid(clsidDeviceClass), ppEnumMoniker, dwFlags);
TRACE("iface %p, class %s, out %p, flags %#x.\n", iface, debugstr_guid(class), out, flags);
if (!ppEnumMoniker)
if (!out)
return E_POINTER;
*ppEnumMoniker = NULL;
*out = NULL;
register_codecs();
if (!RegOpenKeyW(HKEY_CURRENT_USER, wszActiveMovieKey, &key))
{
StringFromGUID2(class, guidstr, ARRAY_SIZE(guidstr));
RegDeleteTreeW(key, guidstr);
}
if (IsEqualGUID(class, &CLSID_LegacyAmFilterCategory))
register_legacy_filters();
else if (IsEqualGUID(class, &CLSID_AudioRendererCategory))
{
hr = DirectSoundEnumerateW(&register_dsound_devices, NULL);
if (FAILED(hr)) return hr;
register_waveout_devices();
register_wavein_devices();
register_midiout_devices();
}
else if (IsEqualGUID(class, &CLSID_AudioInputDeviceCategory))
register_wavein_devices();
else if (IsEqualGUID(class, &CLSID_VideoCompressorCategory))
register_vfw_codecs();
else if (IsEqualGUID(class, &CLSID_VideoInputDeviceCategory))
register_avicap_devices();
return create_EnumMoniker(clsidDeviceClass, ppEnumMoniker);
return create_EnumMoniker(class, out);
}
/**********************************************************************
@ -902,27 +912,3 @@ static HRESULT DEVENUM_CreateAMCategoryKey(const CLSID * clsidCategory)
return res;
}
static void register_codecs(void)
{
WCHAR class[CHARS_IN_GUID];
HKEY basekey;
/* Since devices can change between session, for example because you just plugged in a webcam
* or switched from pulseaudio to alsa, delete all old devices first
*/
RegOpenKeyW(HKEY_CURRENT_USER, wszActiveMovieKey, &basekey);
StringFromGUID2(&CLSID_LegacyAmFilterCategory, class, CHARS_IN_GUID);
RegDeleteTreeW(basekey, class);
StringFromGUID2(&CLSID_AudioRendererCategory, class, CHARS_IN_GUID);
RegDeleteTreeW(basekey, class);
StringFromGUID2(&CLSID_AudioInputDeviceCategory, class, CHARS_IN_GUID);
RegDeleteTreeW(basekey, class);
StringFromGUID2(&CLSID_VideoInputDeviceCategory, class, CHARS_IN_GUID);
RegDeleteTreeW(basekey, class);
StringFromGUID2(&CLSID_MidiRendererCategory, class, CHARS_IN_GUID);
RegDeleteTreeW(basekey, class);
StringFromGUID2(&CLSID_VideoCompressorCategory, class, CHARS_IN_GUID);
RegDeleteTreeW(basekey, class);
RegCloseKey(basekey);
}