qedit: Add pins enumerator implementation to SampleGrabber.
This commit is contained in:
Paul Chitescu
Alexandre Julliard
parent
076fdb35ba
commit
43fe5e35b8
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@ -36,6 +36,160 @@ static WCHAR const vendor_name[] = { 'W', 'i', 'n', 'e', 0 };
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static WCHAR const pin_in_name[] = { 'I', 'n', 0 };
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static WCHAR const pin_out_name[] = { 'O', 'u', 't', 0 };
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IEnumPins *pinsenum_create(IBaseFilter *filter, IPin **pins, ULONG pinCount);
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/* Fixed pins enumerator, holds filter referenced */
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typedef struct _PE_Impl {
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IEnumPins pe;
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IBaseFilter *filter;
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LONG refCount;
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ULONG numPins;
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ULONG index;
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IPin *pins[0];
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} PE_Impl;
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/* IEnumPins interface implementation */
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/* IUnknown */
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static ULONG WINAPI
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Fixed_IEnumPins_AddRef(IEnumPins *iface)
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{
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PE_Impl *This = (PE_Impl *)iface;
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ULONG refCount = InterlockedIncrement(&This->refCount);
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TRACE("(%p) new ref = %u\n", This, refCount);
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return refCount;
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}
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/* IUnknown */
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static ULONG WINAPI
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Fixed_IEnumPins_Release(IEnumPins *iface)
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{
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PE_Impl *This = (PE_Impl *)iface;
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ULONG refCount = InterlockedDecrement(&This->refCount);
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TRACE("(%p) new ref = %u\n", This, refCount);
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if (refCount == 0)
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{
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IBaseFilter_Release(This->filter);
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CoTaskMemFree(This);
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return 0;
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}
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return refCount;
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}
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/* IUnknown */
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static HRESULT WINAPI
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Fixed_IEnumPins_QueryInterface(IEnumPins *iface, REFIID riid, void **ppvObject)
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{
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PE_Impl *This = (PE_Impl *)iface;
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TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppvObject);
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if (IsEqualIID(riid, &IID_IUnknown) ||
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IsEqualIID(riid, &IID_IEnumPins)) {
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Fixed_IEnumPins_AddRef(iface);
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*ppvObject = &(This->pins);
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return S_OK;
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}
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*ppvObject = NULL;
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WARN("(%p, %s,%p): not found\n", This, debugstr_guid(riid), ppvObject);
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return E_NOINTERFACE;
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}
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/* IEnumPins */
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static HRESULT WINAPI
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Fixed_IEnumPins_Next(IEnumPins *iface, ULONG nPins, IPin **pins, ULONG *fetched)
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{
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PE_Impl *This = (PE_Impl *)iface;
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ULONG count = 0;
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TRACE("(%p)->(%u, %p, %p) index = %u\n", This, nPins, pins, fetched, This->index);
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if (!nPins)
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return E_INVALIDARG;
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if (!pins || ((nPins != 1) && !fetched))
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return E_POINTER;
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while ((count < nPins) && (This->index < This->numPins)) {
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IPin *pin = This->pins[This->index++];
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IPin_AddRef(pin);
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pins[count++] = pin;
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}
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if (fetched)
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*fetched = count;
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return (count == nPins) ? S_OK : S_FALSE;
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}
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/* IEnumPins */
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static HRESULT WINAPI
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Fixed_IEnumPins_Skip(IEnumPins *iface, ULONG nPins)
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{
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PE_Impl *This = (PE_Impl *)iface;
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TRACE("(%p)->(%u) index = %u\n", This, nPins, This->index);
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nPins += This->index;
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if (nPins >= This->numPins) {
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This->index = This->numPins;
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return S_FALSE;
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}
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This->index = nPins;
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return S_OK;
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}
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/* IEnumPins */
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static HRESULT WINAPI
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Fixed_IEnumPins_Reset(IEnumPins *iface)
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{
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PE_Impl *This = (PE_Impl *)iface;
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TRACE("(%p)->() index = %u\n", This, This->index);
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This->index = 0;
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return S_OK;
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}
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/* IEnumPins */
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static HRESULT WINAPI
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Fixed_IEnumPins_Clone(IEnumPins *iface, IEnumPins **pins)
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{
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PE_Impl *This = (PE_Impl *)iface;
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TRACE("(%p)->(%p) index = %u\n", This, pins, This->index);
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if (!pins)
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return E_POINTER;
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*pins = pinsenum_create(This->filter, This->pins, This->numPins);
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if (!*pins)
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return E_OUTOFMEMORY;
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((PE_Impl *)*pins)->index = This->index;
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return S_OK;
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}
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/* Virtual tables and constructor */
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static const IEnumPinsVtbl IEnumPins_VTable =
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{
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Fixed_IEnumPins_QueryInterface,
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Fixed_IEnumPins_AddRef,
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Fixed_IEnumPins_Release,
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Fixed_IEnumPins_Next,
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Fixed_IEnumPins_Skip,
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Fixed_IEnumPins_Reset,
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Fixed_IEnumPins_Clone,
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};
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IEnumPins *pinsenum_create(IBaseFilter *filter, IPin **pins, ULONG pinCount)
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{
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ULONG len = sizeof(PE_Impl) + (pinCount * sizeof(IPin *));
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PE_Impl *obj = CoTaskMemAlloc(len);
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if (obj) {
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ULONG i;
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ZeroMemory(obj, len);
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obj->pe.lpVtbl = &IEnumPins_VTable;
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obj->refCount = 1;
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obj->filter = filter;
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obj->numPins = pinCount;
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obj->index = 0;
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for (i=0; i<pinCount; i++)
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obj->pins[i] = pins[i];
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IBaseFilter_AddRef(filter);
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}
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return &obj->pe;
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}
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/* Sample Grabber pin implementation */
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typedef struct _SG_Pin {
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const IPinVtbl* lpVtbl;
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@ -314,10 +468,14 @@ static HRESULT WINAPI
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SampleGrabber_IBaseFilter_EnumPins(IBaseFilter *iface, IEnumPins **pins)
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{
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SG_Impl *This = impl_from_IBaseFilter(iface);
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FIXME("(%p)->(%p): stub\n", This, pins);
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IPin *pin[2];
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TRACE("(%p)->(%p)\n", This, pins);
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if (!pins)
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return E_POINTER;
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return E_OUTOFMEMORY;
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pin[0] = (IPin*)&This->pin_in.lpVtbl;
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pin[1] = (IPin*)&This->pin_out.lpVtbl;
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*pins = pinsenum_create(iface, pin, 2);
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return *pins ? S_OK : E_OUTOFMEMORY;
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}
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/* IBaseFilter */
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