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strmbase: Simplify IEnumMediaTypesImpl_Next(). 

Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2019-06-29 13:43:49 -05:00 committed by Alexandre Julliard
parent 038407475b
commit cf09b5a800
1 changed files with 17 additions and 26 deletions
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43
dlls/strmbase/mediatype.c
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@ -172,44 +172,35 @@ static ULONG WINAPI IEnumMediaTypesImpl_Release(IEnumMediaTypes * iface)
return ref;
}
static HRESULT WINAPI IEnumMediaTypesImpl_Next(IEnumMediaTypes * iface, ULONG cMediaTypes, AM_MEDIA_TYPE ** ppMediaTypes, ULONG * pcFetched)
static HRESULT WINAPI IEnumMediaTypesImpl_Next(IEnumMediaTypes *iface,
ULONG count, AM_MEDIA_TYPE **mts, ULONG *ret_count)
{
ULONG cFetched;
IEnumMediaTypesImpl *This = impl_from_IEnumMediaTypes(iface);
IEnumMediaTypesImpl *enummt = impl_from_IEnumMediaTypes(iface);
ULONG i;
TRACE("(%p)->(%u, %p, %p)\n", iface, cMediaTypes, ppMediaTypes, pcFetched);
TRACE("iface %p, count %u, mts %p, ret_count %p.\n", iface, count, mts, ret_count);
cFetched = min(This->count, This->uIndex + cMediaTypes) - This->uIndex;
if (This->currentVersion != This->mediaVersionFunction(This->basePin))
if (enummt->currentVersion != enummt->mediaVersionFunction(enummt->basePin))
return VFW_E_ENUM_OUT_OF_SYNC;
TRACE("Next uIndex: %u, cFetched: %u\n", This->uIndex, cFetched);
if (cFetched > 0)
for (i = 0; i < count && enummt->uIndex + i < enummt->count; i++)
{
ULONG i;
for (i = 0; i < cFetched; i++)
if (!(mts[i] = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE)))
|| FAILED(enummt->enumMediaFunction(enummt->basePin, enummt->uIndex + i, mts[i])))
{
if (!(ppMediaTypes[i] = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE)))
|| FAILED(This->enumMediaFunction(This->basePin, This->uIndex + i, ppMediaTypes[i])))
{
while (i--)
DeleteMediaType(ppMediaTypes[i]);
*pcFetched = 0;
return E_OUTOFMEMORY;
}
while (i--)
DeleteMediaType(mts[i]);
*ret_count = 0;
return E_OUTOFMEMORY;
}
}
if ((cMediaTypes != 1) || pcFetched)
*pcFetched = cFetched;
if ((count != 1) || ret_count)
*ret_count = i;
This->uIndex += cFetched;
enummt->uIndex += i;
if (cFetched != cMediaTypes)
return S_FALSE;
return S_OK;
return i == count ? S_OK : S_FALSE;
}
static HRESULT WINAPI IEnumMediaTypesImpl_Skip(IEnumMediaTypes * iface, ULONG cMediaTypes)