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quartz: Use unsafe_impl_from_IMediaSample() instead of a cast.

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Michael Stefaniuc 2012-07-03 00:19:52 +02:00 committed by Alexandre Julliard
parent f557ed6f94
commit 9262c55a2e
1 changed files with 13 additions and 2 deletions
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13
dlls/quartz/memallocator.c
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@ -70,6 +70,7 @@ static inline BaseMemAllocator *impl_from_IMemAllocator(IMemAllocator *iface)
static const IMemAllocatorVtbl BaseMemAllocator_VTable; static const IMemAllocatorVtbl BaseMemAllocator_VTable;
static const IMediaSample2Vtbl StdMediaSample2_VTable; static const IMediaSample2Vtbl StdMediaSample2_VTable;
static inline StdMediaSample2 *unsafe_impl_from_IMediaSample(IMediaSample * iface);
#define AM_SAMPLE2_PROP_SIZE_WRITABLE FIELD_OFFSET(AM_SAMPLE2_PROPERTIES, pbBuffer) #define AM_SAMPLE2_PROP_SIZE_WRITABLE FIELD_OFFSET(AM_SAMPLE2_PROPERTIES, pbBuffer)
@ -356,7 +357,7 @@ static HRESULT WINAPI BaseMemAllocator_GetBuffer(IMemAllocator * iface, IMediaSa
static HRESULT WINAPI BaseMemAllocator_ReleaseBuffer(IMemAllocator * iface, IMediaSample * pSample) static HRESULT WINAPI BaseMemAllocator_ReleaseBuffer(IMemAllocator * iface, IMediaSample * pSample)
{ {
BaseMemAllocator *This = impl_from_IMemAllocator(iface); BaseMemAllocator *This = impl_from_IMemAllocator(iface);
StdMediaSample2 * pStdSample = (StdMediaSample2 *)pSample; StdMediaSample2 * pStdSample = unsafe_impl_from_IMediaSample(pSample);
HRESULT hr = S_OK; HRESULT hr = S_OK;
TRACE("(%p)->(%p)\n", This, pSample); TRACE("(%p)->(%p)\n", This, pSample);
@ -791,6 +792,16 @@ static const IMediaSample2Vtbl StdMediaSample2_VTable =
StdMediaSample2_SetProperties StdMediaSample2_SetProperties
}; };
static inline StdMediaSample2 *unsafe_impl_from_IMediaSample(IMediaSample * iface)
{
IMediaSample2 *iface2 = (IMediaSample2 *)iface;
if (!iface)
return NULL;
assert(iface2->lpVtbl == &StdMediaSample2_VTable);
return impl_from_IMediaSample2(iface2);
}
typedef struct StdMemAllocator typedef struct StdMemAllocator
{ {
BaseMemAllocator base; BaseMemAllocator base;