Sweden-Number/dlls/amstream/mediastream.c

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/*
* Implementation of IMediaStream Interface
*
* Copyright 2005 Christian Costa
*
* This file contains the (internal) driver registration functions,
* driver enumeration APIs and DirectDraw creation functions.
*
* 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 "wine/debug.h"
#define COBJMACROS
#include "winbase.h"
#include "wingdi.h"
#include "amstream_private.h"
#include "amstream.h"
WINE_DEFAULT_DEBUG_CHANNEL(amstream);
typedef struct {
IMediaStream lpVtbl;
LONG ref;
IMultiMediaStream* Parent;
MSPID PurposeId;
STREAM_TYPE StreamType;
} IMediaStreamImpl;
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static const struct IMediaStreamVtbl MediaStream_Vtbl;
HRESULT MediaStream_create(IMultiMediaStream* Parent, const MSPID* pPurposeId, STREAM_TYPE StreamType, IMediaStream** ppMediaStream)
{
IMediaStreamImpl* object;
TRACE("(%p,%p,%p)\n", Parent, pPurposeId, ppMediaStream);
object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IMediaStreamImpl));
object->lpVtbl.lpVtbl = &MediaStream_Vtbl;
object->ref = 1;
object->Parent = Parent;
object->PurposeId = *pPurposeId;
object->StreamType = StreamType;
*ppMediaStream = (IMediaStream*)object;
return S_OK;
}
/*** IUnknown methods ***/
static HRESULT WINAPI IMediaStreamImpl_QueryInterface(IMediaStream* iface, REFIID riid, void** ppvObject)
{
IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
TRACE("(%p/%p)->(%s,%p)\n", iface, This, debugstr_guid(riid), ppvObject);
if (IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IAMMultiMediaStream) ||
IsEqualGUID(riid, &IID_IDirectDrawMediaStream))
{
IClassFactory_AddRef(iface);
*ppvObject = This;
return S_OK;
}
ERR("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppvObject);
return E_NOINTERFACE;
}
static ULONG WINAPI IMediaStreamImpl_AddRef(IMediaStream* iface)
{
IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
TRACE("(%p/%p)\n", iface, This);
return InterlockedIncrement(&This->ref);
}
static ULONG WINAPI IMediaStreamImpl_Release(IMediaStream* iface)
{
IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p/%p)\n", iface, This);
if (!ref)
HeapFree(GetProcessHeap(), 0, This);
return ref;
}
/*** IMediaStream methods ***/
static HRESULT WINAPI IMediaStreamImpl_GetMultiMediaStream(IMediaStream* iface, IMultiMediaStream** ppMultiMediaStream)
{
IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
FIXME("(%p/%p)->(%p) stub!\n", This, iface, ppMultiMediaStream);
return S_FALSE;
}
static HRESULT WINAPI IMediaStreamImpl_GetInformation(IMediaStream* iface, MSPID* pPurposeId, STREAM_TYPE* pType)
{
IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
TRACE("(%p/%p)->(%p,%p)\n", This, iface, pPurposeId, pType);
if (pPurposeId)
*pPurposeId = This->PurposeId;
if (pType)
*pType = This->StreamType;
return S_OK;
}
static HRESULT WINAPI IMediaStreamImpl_SetSameFormat(IMediaStream* iface, IMediaStream* pStreamThatHasDesiredFormat, DWORD dwFlags)
{
IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
FIXME("(%p/%p)->(%p,%x) stub!\n", This, iface, pStreamThatHasDesiredFormat, dwFlags);
return S_FALSE;
}
static HRESULT WINAPI IMediaStreamImpl_AllocateSample(IMediaStream* iface, DWORD dwFlags, IStreamSample** ppSample)
{
IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
FIXME("(%p/%p)->(%x,%p) stub!\n", This, iface, dwFlags, ppSample);
return S_FALSE;
}
static HRESULT WINAPI IMediaStreamImpl_CreateSharedSample(IMediaStream* iface, IStreamSample* pExistingSample, DWORD dwFlags, IStreamSample** ppSample)
{
IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
FIXME("(%p/%p)->(%p,%x,%p) stub!\n", This, iface, pExistingSample, dwFlags, ppSample);
return S_FALSE;
}
static HRESULT WINAPI IMediaStreamImpl_SendEndOfStream(IMediaStream* iface, DWORD dwFlags)
{
IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
FIXME("(%p/%p)->(%x) stub!\n", This, iface, dwFlags);
return S_FALSE;
}
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static const struct IMediaStreamVtbl MediaStream_Vtbl =
{
IMediaStreamImpl_QueryInterface,
IMediaStreamImpl_AddRef,
IMediaStreamImpl_Release,
IMediaStreamImpl_GetMultiMediaStream,
IMediaStreamImpl_GetInformation,
IMediaStreamImpl_SetSameFormat,
IMediaStreamImpl_AllocateSample,
IMediaStreamImpl_CreateSharedSample,
IMediaStreamImpl_SendEndOfStream
};