mirror of
https://github.com/reactos/wine.git
synced 2024-12-13 14:26:40 +00:00
187 lines
4.5 KiB
C
187 lines
4.5 KiB
C
/*
|
|
* Implementation of IEnumPins Interface
|
|
*
|
|
* Copyright 2003 Robert Shearman
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#include <stdarg.h>
|
|
|
|
#define COBJMACROS
|
|
|
|
#include "windef.h"
|
|
#include "winbase.h"
|
|
#include "wtypes.h"
|
|
#include "wingdi.h"
|
|
#include "winuser.h"
|
|
#include "dshow.h"
|
|
|
|
#include "qcap_main.h"
|
|
|
|
#include "wine/debug.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(qcap);
|
|
|
|
typedef struct IEnumPinsImpl
|
|
{
|
|
const IEnumPinsVtbl * lpVtbl;
|
|
LONG refCount;
|
|
ENUMPINDETAILS enumPinDetails;
|
|
ULONG uIndex;
|
|
} IEnumPinsImpl;
|
|
|
|
static const struct IEnumPinsVtbl IEnumPinsImpl_Vtbl;
|
|
|
|
HRESULT IEnumPinsImpl_Construct(const ENUMPINDETAILS * pDetails, IEnumPins ** ppEnum)
|
|
{
|
|
IEnumPinsImpl * pEnumPins = CoTaskMemAlloc(sizeof(IEnumPinsImpl));
|
|
if (!pEnumPins)
|
|
{
|
|
*ppEnum = NULL;
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
pEnumPins->lpVtbl = &IEnumPinsImpl_Vtbl;
|
|
pEnumPins->refCount = 1;
|
|
pEnumPins->uIndex = 0;
|
|
CopyMemory(&pEnumPins->enumPinDetails, pDetails, sizeof(ENUMPINDETAILS));
|
|
*ppEnum = (IEnumPins *)(&pEnumPins->lpVtbl);
|
|
ObjectRefCount(TRUE);
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI IEnumPinsImpl_QueryInterface(IEnumPins * iface, REFIID riid, LPVOID * ppv)
|
|
{
|
|
TRACE("(%s, %p)\n", debugstr_guid(riid), ppv);
|
|
|
|
*ppv = NULL;
|
|
|
|
if (IsEqualIID(riid, &IID_IUnknown))
|
|
*ppv = (LPVOID)iface;
|
|
else if (IsEqualIID(riid, &IID_IEnumPins))
|
|
*ppv = (LPVOID)iface;
|
|
|
|
if (*ppv)
|
|
{
|
|
IUnknown_AddRef((IUnknown *)(*ppv));
|
|
return S_OK;
|
|
}
|
|
|
|
FIXME("No interface for %s!\n", debugstr_guid(riid));
|
|
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
static ULONG WINAPI IEnumPinsImpl_AddRef(IEnumPins * iface)
|
|
{
|
|
IEnumPinsImpl *This = (IEnumPinsImpl *)iface;
|
|
ULONG refCount = InterlockedIncrement(&This->refCount);
|
|
|
|
TRACE("()\n");
|
|
|
|
return refCount;
|
|
}
|
|
|
|
static ULONG WINAPI IEnumPinsImpl_Release(IEnumPins * iface)
|
|
{
|
|
IEnumPinsImpl *This = (IEnumPinsImpl *)iface;
|
|
ULONG refCount = InterlockedDecrement(&This->refCount);
|
|
|
|
TRACE("()\n");
|
|
|
|
if (!refCount)
|
|
{
|
|
CoTaskMemFree(This);
|
|
ObjectRefCount(FALSE);
|
|
}
|
|
return refCount;
|
|
}
|
|
|
|
static HRESULT WINAPI IEnumPinsImpl_Next(IEnumPins * iface, ULONG cPins, IPin ** ppPins, ULONG * pcFetched)
|
|
{
|
|
ULONG cFetched;
|
|
IEnumPinsImpl *This = (IEnumPinsImpl *)iface;
|
|
|
|
cFetched = min(This->enumPinDetails.cPins, This->uIndex + cPins) - This->uIndex;
|
|
|
|
TRACE("(%u, %p, %p)\n", cPins, ppPins, pcFetched);
|
|
|
|
if (cFetched > 0)
|
|
{
|
|
ULONG i;
|
|
for (i = 0; i < cFetched; i++) {
|
|
IPin_AddRef(This->enumPinDetails.ppPins[This->uIndex + i]);
|
|
ppPins[i] = This->enumPinDetails.ppPins[This->uIndex + i];
|
|
}
|
|
}
|
|
|
|
if ((cPins != 1) || pcFetched)
|
|
*pcFetched = cFetched;
|
|
|
|
This->uIndex += cFetched;
|
|
|
|
if (cFetched != cPins)
|
|
return S_FALSE;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI IEnumPinsImpl_Skip(IEnumPins * iface, ULONG cPins)
|
|
{
|
|
IEnumPinsImpl *This = (IEnumPinsImpl *)iface;
|
|
|
|
TRACE("(%u)\n", cPins);
|
|
|
|
if (This->uIndex + cPins < This->enumPinDetails.cPins)
|
|
{
|
|
This->uIndex += cPins;
|
|
return S_OK;
|
|
}
|
|
return S_FALSE;
|
|
}
|
|
|
|
static HRESULT WINAPI IEnumPinsImpl_Reset(IEnumPins * iface)
|
|
{
|
|
IEnumPinsImpl *This = (IEnumPinsImpl *)iface;
|
|
|
|
TRACE("IEnumPinsImpl::Reset()\n");
|
|
|
|
This->uIndex = 0;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI IEnumPinsImpl_Clone(IEnumPins * iface, IEnumPins ** ppEnum)
|
|
{
|
|
HRESULT hr;
|
|
IEnumPinsImpl *This = (IEnumPinsImpl *)iface;
|
|
|
|
TRACE("(%p)\n", ppEnum);
|
|
|
|
hr = IEnumPinsImpl_Construct(&This->enumPinDetails, ppEnum);
|
|
if (FAILED(hr))
|
|
return hr;
|
|
return IEnumPins_Skip(*ppEnum, This->uIndex);
|
|
}
|
|
|
|
static const IEnumPinsVtbl IEnumPinsImpl_Vtbl =
|
|
{
|
|
IEnumPinsImpl_QueryInterface,
|
|
IEnumPinsImpl_AddRef,
|
|
IEnumPinsImpl_Release,
|
|
IEnumPinsImpl_Next,
|
|
IEnumPinsImpl_Skip,
|
|
IEnumPinsImpl_Reset,
|
|
IEnumPinsImpl_Clone
|
|
};
|