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Add IEnumMediaType object for use by other class objects. This is 

taken from quartz with only minor adaptions.
This commit is contained in:
Rolf Kalbermatter 2005-05-14 11:03:44 +00:00 committed by Alexandre Julliard
parent e9e6f13996
commit 19312f3094
3 changed files with 272 additions and 0 deletions
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1
dlls/qcap/Makefile.in
View File

@ -10,6 +10,7 @@ EXTRALIBS = -lstrmiids -luuid $(LIBUNICODE)
C_SRCS = \
capturegraph.c \
dllsetup.c \
enummedia.c \
qcap_main.c
RC_SRCS = version.rc

250
dlls/qcap/enummedia.c Normal file
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@ -0,0 +1,250 @@
/*
* Implementation of IEnumMediaTypes 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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);
HRESULT CopyMediaType(AM_MEDIA_TYPE * pDest, const AM_MEDIA_TYPE *pSrc)
{
memcpy(pDest, pSrc, sizeof(AM_MEDIA_TYPE));
if (!(pDest->pbFormat = CoTaskMemAlloc(pSrc->cbFormat)))
return E_OUTOFMEMORY;
memcpy(pDest->pbFormat, pSrc->pbFormat, pSrc->cbFormat);
return S_OK;
}
void DeleteMediaType(AM_MEDIA_TYPE * pMediaType)
{
if (pMediaType->pbFormat)
{
CoTaskMemFree(pMediaType->pbFormat);
pMediaType->pbFormat = NULL;
}
if (pMediaType->pUnk)
{
IUnknown_Release(pMediaType->pUnk);
pMediaType->pUnk = NULL;
}
}
BOOL CompareMediaTypes(const AM_MEDIA_TYPE * pmt1, const AM_MEDIA_TYPE * pmt2,
BOOL bWildcards)
{
TRACE("pmt1: ");
dump_AM_MEDIA_TYPE(pmt1);
TRACE("pmt2: ");
dump_AM_MEDIA_TYPE(pmt2);
return (((bWildcards && (IsEqualGUID(&pmt1->majortype, &GUID_NULL) ||
IsEqualGUID(&pmt2->majortype, &GUID_NULL))) ||
IsEqualGUID(&pmt1->majortype, &pmt2->majortype)) &&
((bWildcards && (IsEqualGUID(&pmt1->subtype, &GUID_NULL) ||
IsEqualGUID(&pmt2->subtype, &GUID_NULL))) ||
IsEqualGUID(&pmt1->subtype, &pmt2->subtype)));
}
void dump_AM_MEDIA_TYPE(const AM_MEDIA_TYPE * pmt)
{
if (!pmt)
return;
TRACE("\t%s\n\t%s\n\t...\n\t%s\n", debugstr_guid(&pmt->majortype),
debugstr_guid(&pmt->subtype), debugstr_guid(&pmt->formattype));
}
typedef struct IEnumMediaTypesImpl
{
const IEnumMediaTypesVtbl * lpVtbl;
ULONG refCount;
ENUMMEDIADETAILS enumMediaDetails;
ULONG uIndex;
} IEnumMediaTypesImpl;
static const struct IEnumMediaTypesVtbl IEnumMediaTypesImpl_Vtbl;
HRESULT IEnumMediaTypesImpl_Construct(const ENUMMEDIADETAILS * pDetails,
IEnumMediaTypes ** ppEnum)
{
ULONG i;
IEnumMediaTypesImpl * pEnumMediaTypes = CoTaskMemAlloc(sizeof(IEnumMediaTypesImpl));
if (!pEnumMediaTypes)
{
*ppEnum = NULL;
return E_OUTOFMEMORY;
}
ObjectRefCount(TRUE);
pEnumMediaTypes->lpVtbl = &IEnumMediaTypesImpl_Vtbl;
pEnumMediaTypes->refCount = 1;
pEnumMediaTypes->uIndex = 0;
pEnumMediaTypes->enumMediaDetails.cMediaTypes = pDetails->cMediaTypes;
pEnumMediaTypes->enumMediaDetails.pMediaTypes =
CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE) * pDetails->cMediaTypes);
for (i = 0; i < pDetails->cMediaTypes; i++)
pEnumMediaTypes->enumMediaDetails.pMediaTypes[i] = pDetails->pMediaTypes[i];
*ppEnum = (IEnumMediaTypes *)(&pEnumMediaTypes->lpVtbl);
return S_OK;
}
static HRESULT WINAPI IEnumMediaTypesImpl_QueryInterface(IEnumMediaTypes * 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_IEnumMediaTypes))
*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 IEnumMediaTypesImpl_AddRef(IEnumMediaTypes * iface)
{
IEnumMediaTypesImpl *This = (IEnumMediaTypesImpl *)iface;
ULONG refCount = InterlockedIncrement(&This->refCount);
TRACE("()\n");
return refCount;
}
static ULONG WINAPI IEnumMediaTypesImpl_Release(IEnumMediaTypes * iface)
{
IEnumMediaTypesImpl *This = (IEnumMediaTypesImpl *)iface;
ULONG refCount = InterlockedDecrement(&This->refCount);
TRACE("()\n");
if (!refCount)
{
CoTaskMemFree(This->enumMediaDetails.pMediaTypes);
CoTaskMemFree(This);
ObjectRefCount(FALSE);
return 0;
}
else
return refCount;
}
static HRESULT WINAPI IEnumMediaTypesImpl_Next(IEnumMediaTypes * iface,
ULONG cMediaTypes,
AM_MEDIA_TYPE ** ppMediaTypes,
ULONG * pcFetched)
{
ULONG cFetched;
IEnumMediaTypesImpl *This = (IEnumMediaTypesImpl *)iface;
cFetched = min(This->enumMediaDetails.cMediaTypes,
This->uIndex + cMediaTypes) - This->uIndex;
TRACE("(%lu, %p, %p)\n", cMediaTypes, ppMediaTypes, pcFetched);
TRACE("Next uIndex: %lu, cFetched: %lu\n", This->uIndex, cFetched);
if (cFetched > 0)
{
ULONG i;
*ppMediaTypes = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE) * cFetched);
for (i = 0; i < cFetched; i++)
(*ppMediaTypes)[i] = This->enumMediaDetails.pMediaTypes[This->uIndex + i];
}
if ((cMediaTypes != 1) || pcFetched)
*pcFetched = cFetched;
This->uIndex += cFetched;
if (cFetched != cMediaTypes)
return S_FALSE;
return S_OK;
}
static HRESULT WINAPI IEnumMediaTypesImpl_Skip(IEnumMediaTypes * iface,
ULONG cMediaTypes)
{
IEnumMediaTypesImpl *This = (IEnumMediaTypesImpl *)iface;
TRACE("(%lu)\n", cMediaTypes);
if (This->uIndex + cMediaTypes < This->enumMediaDetails.cMediaTypes)
{
This->uIndex += cMediaTypes;
return S_OK;
}
return S_FALSE;
}
static HRESULT WINAPI IEnumMediaTypesImpl_Reset(IEnumMediaTypes * iface)
{
IEnumMediaTypesImpl *This = (IEnumMediaTypesImpl *)iface;
TRACE("()\n");
This->uIndex = 0;
return S_OK;
}
static HRESULT WINAPI IEnumMediaTypesImpl_Clone(IEnumMediaTypes * iface,
IEnumMediaTypes ** ppEnum)
{
HRESULT hr;
IEnumMediaTypesImpl *This = (IEnumMediaTypesImpl *)iface;
TRACE("(%p)\n", ppEnum);
hr = IEnumMediaTypesImpl_Construct(&This->enumMediaDetails, ppEnum);
if (FAILED(hr))
return hr;
return IEnumMediaTypes_Skip(*ppEnum, This->uIndex);
}
static const IEnumMediaTypesVtbl IEnumMediaTypesImpl_Vtbl =
{
IEnumMediaTypesImpl_QueryInterface,
IEnumMediaTypesImpl_AddRef,
IEnumMediaTypesImpl_Release,
IEnumMediaTypesImpl_Next,
IEnumMediaTypesImpl_Skip,
IEnumMediaTypesImpl_Reset,
IEnumMediaTypesImpl_Clone
};

21
dlls/qcap/qcap_main.h
View File

@ -35,4 +35,25 @@ extern IUnknown * WINAPI QCAP_createInfinitePinTeeFilter(IUnknown *pUnkOuter, HR
extern IUnknown * WINAPI QCAP_createSmartTeeFilter(IUnknown *pUnkOuter, HRESULT *phr);
extern IUnknown * WINAPI QCAP_createAudioInputMixerPropertyPage(IUnknown *pUnkOuter, HRESULT *phr);
typedef struct tagENUMPINDETAILS
{
ULONG cPins;
IPin ** ppPins;
} ENUMPINDETAILS;
typedef struct tagENUMEDIADETAILS
{
ULONG cMediaTypes;
AM_MEDIA_TYPE * pMediaTypes;
} ENUMMEDIADETAILS;
HRESULT IEnumPinsImpl_Construct(const ENUMPINDETAILS * pDetails, IEnumPins ** ppEnum);
HRESULT IEnumMediaTypesImpl_Construct(const ENUMMEDIADETAILS * pDetails, IEnumMediaTypes ** ppEnum);
HRESULT CopyMediaType(AM_MEDIA_TYPE * pDest, const AM_MEDIA_TYPE *pSrc);
void FreeMediaType(AM_MEDIA_TYPE * pmt);
void DeleteMediaType(AM_MEDIA_TYPE * pmt);
BOOL CompareMediaTypes(const AM_MEDIA_TYPE * pmt1, const AM_MEDIA_TYPE * pmt2, BOOL bWildcards);
void dump_AM_MEDIA_TYPE(const AM_MEDIA_TYPE * pmt);
#endif /* _QCAP_MAIN_H_DEFINED */