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strmbase: Determine the pin count using the GetPin() callback. 

Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2019-05-13 22:17:56 -05:00 committed by Alexandre Julliard
parent 42b6b85ec0
commit 89242d8b94
1 changed files with 21 additions and 2 deletions
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23
dlls/strmbase/enumpins.c
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@ -27,7 +27,7 @@ typedef struct IEnumPinsImpl
{
IEnumPins IEnumPins_iface;
LONG refCount;
ULONG uIndex;
unsigned int uIndex, count;
BaseFilter *base;
DWORD Version;
} IEnumPinsImpl;
@ -42,6 +42,7 @@ static const struct IEnumPinsVtbl IEnumPinsImpl_Vtbl;
HRESULT enum_pins_create(BaseFilter *base, IEnumPins **ppEnum)
{
IEnumPinsImpl * pEnumPins;
IPin *pin;
if (!ppEnum)
return E_POINTER;
@ -59,6 +60,13 @@ HRESULT enum_pins_create(BaseFilter *base, IEnumPins **ppEnum)
IBaseFilter_AddRef(&base->IBaseFilter_iface);
*ppEnum = &pEnumPins->IEnumPins_iface;
pEnumPins->Version = base->pin_version;
pEnumPins->count = 0;
while ((pin = base->pFuncsTable->pfnGetPin(base, pEnumPins->count)))
{
IPin_Release(pin);
++pEnumPins->count;
}
TRACE("Created new enumerator (%p)\n", *ppEnum);
return S_OK;
@ -161,7 +169,7 @@ static HRESULT WINAPI IEnumPinsImpl_Skip(IEnumPins *iface, ULONG count)
if (enum_pins->Version != enum_pins->base->pin_version)
return VFW_E_ENUM_OUT_OF_SYNC;
if (enum_pins->uIndex + count > enum_pins->base->pFuncsTable->pfnGetPinCount(enum_pins->base))
if (enum_pins->uIndex + count > enum_pins->count)
return S_FALSE;
enum_pins->uIndex += count;
@ -171,9 +179,20 @@ static HRESULT WINAPI IEnumPinsImpl_Skip(IEnumPins *iface, ULONG count)
static HRESULT WINAPI IEnumPinsImpl_Reset(IEnumPins *iface)
{
IEnumPinsImpl *enum_pins = impl_from_IEnumPins(iface);
IPin *pin;
TRACE("iface %p.\n", iface);
if (enum_pins->Version != enum_pins->base->pin_version)
{
enum_pins->count = 0;
while ((pin = enum_pins->base->pFuncsTable->pfnGetPin(enum_pins->base, enum_pins->count)))
{
IPin_Release(pin);
++enum_pins->count;
}
}
enum_pins->Version = enum_pins->base->pin_version;
enum_pins->uIndex = 0;