155 lines
4.4 KiB
C
155 lines
4.4 KiB
C
/*
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* Implements Asynchronous File/URL Source.
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*
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* Copyright (C) Hidenori TAKESHIMA <hidenori@a2.ctktv.ne.jp>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef WINE_DSHOW_ASYNCSRC_H
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#define WINE_DSHOW_ASYNCSRC_H
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#include "iunk.h"
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#include "basefilt.h"
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typedef struct CAsyncSourceImpl CAsyncSourceImpl;
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typedef struct CAsyncSourcePinImpl CAsyncSourcePinImpl;
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typedef struct AsyncSourceRequest AsyncSourceRequest;
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typedef struct AsyncSourceHandlers AsyncSourceHandlers;
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typedef struct CAsyncReaderImpl
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{
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ICOM_VFIELD(IAsyncReader);
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/* IUnknown fields */
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IUnknown* punkControl;
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/* IAsyncReader fields */
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CAsyncSourceImpl* pSource;
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CRITICAL_SECTION m_csReader;
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BOOL m_bInFlushing;
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BOOL m_bAbortThread;
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HANDLE m_hEventInit;
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HANDLE m_hEventCancel;
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HANDLE m_hEventReqQueued;
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HANDLE m_hEventSampQueued;
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HANDLE m_hThread;
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CRITICAL_SECTION m_csRequest;
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AsyncSourceRequest* m_pRequestFirst;
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CRITICAL_SECTION m_csReply;
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AsyncSourceRequest* m_pReplyFirst;
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CRITICAL_SECTION m_csFree;
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AsyncSourceRequest* m_pFreeFirst;
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} CAsyncReaderImpl;
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typedef struct CFileSourceFilterImpl
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{
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ICOM_VFIELD(IFileSourceFilter);
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/* IUnknown fields */
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IUnknown* punkControl;
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/* IFileSourceFilter fields */
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CAsyncSourceImpl* pSource;
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CRITICAL_SECTION* pcsFileSource;
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WCHAR* m_pwszFileName;
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DWORD m_cbFileName;
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AM_MEDIA_TYPE m_mt;
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} CFileSourceFilterImpl;
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struct CAsyncSourceImpl
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{
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QUARTZ_IUnkImpl unk;
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CBaseFilterImpl basefilter;
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CFileSourceFilterImpl filesrc;
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CRITICAL_SECTION csFilter;
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CAsyncSourcePinImpl* pPin;
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const AsyncSourceHandlers* m_pHandler;
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void* m_pUserData;
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};
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struct CAsyncSourcePinImpl
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{
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QUARTZ_IUnkImpl unk;
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CPinBaseImpl pin;
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CAsyncReaderImpl async;
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QUARTZ_IFDelegation qiext;
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BOOL bAsyncReaderQueried;
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CAsyncSourceImpl* pSource;
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};
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struct AsyncSourceRequest
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{
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AsyncSourceRequest* pNext;
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LONGLONG llStart;
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LONG lLength;
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LONG lActual;
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BYTE* pBuf;
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IMediaSample* pSample; /* for async req. */
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DWORD_PTR dwContext; /* for async req. */
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};
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struct AsyncSourceHandlers
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{
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/* all handlers MUST be implemented. */
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HRESULT (*pLoad)( CAsyncSourceImpl* pImpl, LPCWSTR lpwszSourceName );
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HRESULT (*pCleanup)( CAsyncSourceImpl* pImpl );
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HRESULT (*pGetLength)( CAsyncSourceImpl* pImpl, LONGLONG* pllTotal, LONGLONG* pllAvailable );
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/* S_OK = OK / S_FALSE = Canceled / other = error */
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/* hEventCancel may be NULL */
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HRESULT (*pRead)( CAsyncSourceImpl* pImpl, LONGLONG llOfsStart, LONG lLength, BYTE* pBuf, LONG* plReturned, HANDLE hEventCancel );
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};
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#define CAsyncSourceImpl_THIS(iface,member) CAsyncSourceImpl* This = ((CAsyncSourceImpl*)(((char*)iface)-offsetof(CAsyncSourceImpl,member)))
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#define CAsyncSourcePinImpl_THIS(iface,member) CAsyncSourcePinImpl* This = ((CAsyncSourcePinImpl*)(((char*)iface)-offsetof(CAsyncSourcePinImpl,member)))
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HRESULT CAsyncReaderImpl_InitIAsyncReader(
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CAsyncReaderImpl* This, IUnknown* punkControl,
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CAsyncSourceImpl* pSource );
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void CAsyncReaderImpl_UninitIAsyncReader(
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CAsyncReaderImpl* This );
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HRESULT CFileSourceFilterImpl_InitIFileSourceFilter(
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CFileSourceFilterImpl* This, IUnknown* punkControl,
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CAsyncSourceImpl* pSource,
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CRITICAL_SECTION* pcsFileSource );
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void CFileSourceFilterImpl_UninitIFileSourceFilter(
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CFileSourceFilterImpl* This );
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HRESULT QUARTZ_CreateAsyncSource(
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IUnknown* punkOuter,void** ppobj,
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const CLSID* pclsidAsyncSource,
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LPCWSTR pwszAsyncSourceName,
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LPCWSTR pwszOutPinName,
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const AsyncSourceHandlers* pHandler );
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HRESULT QUARTZ_CreateAsyncSourcePin(
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CAsyncSourceImpl* pFilter,
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CRITICAL_SECTION* pcsPin,
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CAsyncSourcePinImpl** ppPin,
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LPCWSTR pwszPinName );
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HRESULT QUARTZ_CreateAsyncReader(IUnknown* punkOuter,void** ppobj);
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HRESULT QUARTZ_CreateURLReader(IUnknown* punkOuter,void** ppobj);
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#define ASYNCSRC_FILE_BLOCKSIZE 16384
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#endif /* WINE_DSHOW_ASYNCSRC_H */
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