ihxostrm.h
上传用户:zhongxx05
上传日期:2007-06-06
资源大小:33641k
文件大小:6k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _IHXOSTRM_H
- #define _IHXOSTRM_H
- #include "hxcom.h"
- // These interfaces use HXString as one of the data primitives
- // that can be written/read from a stream. Makes life easy for
- // implementors of IHXStreamableObj
- #include "hxstring.h"
- //typedef interface IHXStreamableObj IHXStreamableObj;
- typedef _INTERFACE IHXObjOutStream IHXObjOutStream;
- typedef _INTERFACE IHXObjInStream IHXObjInStream;
- // {47533471-BECE-11d1-8F09-0060083BE561}
- DEFINE_GUID(IID_IHXStreamableObj, 0x47533471, 0xbece, 0x11d1, 0x8f, 0x9, 0x0, 0x60, 0x8, 0x3b, 0xe5, 0x61);
- #undef INTERFACE
- #define INTERFACE IHXStreamableObj
- DECLARE_INTERFACE_(IHXStreamableObj, IUnknown)
- {
- STDMETHOD(QueryInterface) (THIS_ REFIID riid, void** ppvObj) PURE;
- STDMETHOD_(ULONG32, AddRef) (THIS) PURE;
- STDMETHOD_(ULONG32, Release) (THIS) PURE;
- // this method is used to dump a binary
- // representation of itself to the Encoder Object.
- STDMETHOD(WriteObjToBits) (THIS_ IHXObjOutStream* pIOutStream) PURE;
- // this method is used to set the object's internal state
- // from the data in the Decoder Object.
- STDMETHOD(ReadObjFromBits) (THIS_ IHXObjInStream* pIInStream) PURE;
- };
- // {B3A156D1-BEDD-11d1-8F0A-0060083BE561}
- DEFINE_GUID(IID_IHXObjOutStream, 0xb3a156d1, 0xbedd, 0x11d1, 0x8f, 0xa, 0x0, 0x60, 0x8, 0x3b, 0xe5, 0x61);
- #undef INTERFACE
- #define INTERFACE IHXObjOutStream
- DECLARE_INTERFACE_(IHXObjOutStream, IUnknown)
- {
- STDMETHOD(QueryInterface) (THIS_ REFIID riid, void** ppvObj) PURE;
- STDMETHOD_(UINT32, AddRef) (THIS) PURE;
- STDMETHOD_(UINT32, Release) (THIS) PURE;
- STDMETHOD(Initialize) (THIS) PURE; // clean out buffers, start fresh!
-
- STDMETHOD_(UINT32, WriteObj) (THIS_ IHXStreamableObj* pObj) PURE;
- STDMETHOD_(UINT32, WriteObj) (THIS_ IHXStreamableObj& pObj) PURE;
- STDMETHOD_(UINT32, WriteUCHAR) (THIS_ UCHAR nValue) PURE;
- STDMETHOD_(UINT32, WriteUINT16) (THIS_ UINT16 nValue) PURE;
- STDMETHOD_(UINT32, WriteUINT32) (THIS_ UINT32 nValue) PURE;
- STDMETHOD_(UINT32, WriteString) (THIS_ const char* szValue) PURE;
- STDMETHOD_(UINT32, WriteStringCat) (THIS_ const char* szValue1,const char* szValue2,const char* szValue3=NULL) PURE;
- STDMETHOD_(UINT32, WriteLargeString) (THIS_ const char* szValue) PURE;
- STDMETHOD_(UINT32, WriteBuffer) (THIS_ const char* szBuffer, UINT32 nSize) PURE;
- // dump at specific positions (earlier positions than current offset)
- STDMETHOD_(UINT32, WriteUINT16At) (THIS_ UINT32 nOffset, UINT16 nValue) PURE;
- STDMETHOD_(UINT32, WriteUINT32At) (THIS_ UINT32 nOffset, UINT32 nValue) PURE;
-
- // get data and length
- STDMETHOD_(const char*, GetBuffer) (THIS) PURE;
- STDMETHOD_(UINT32, GetLength) (THIS) PURE;
- // get end of raw data buffer - used when dumping bits into the
- // stream and you want to know the current position in the stream
- STDMETHOD_(UINT32, GetOffset) (THIS) PURE;
- };
- // {B3A156D1-BEDD-11d1-8F0A-0060083BE561}
- DEFINE_GUID(IID_IHXObjInStream, 0xb3a156d2, 0xbedd, 0x11d1, 0x8f, 0xa, 0x0, 0x60, 0x8, 0x3b, 0xe5, 0x61);
- #undef INTERFACE
- #define INTERFACE IHXObjInStream
- DECLARE_INTERFACE_(IHXObjInStream, IUnknown)
- {
- STDMETHOD(QueryInterface) (THIS_ REFIID riid, void** ppvObj) PURE;
- STDMETHOD_(ULONG32, AddRef) (THIS) PURE;
- STDMETHOD_(ULONG32, Release) (THIS) PURE;
-
- STDMETHOD(Initialize) (THIS) PURE;
- STDMETHOD(Initialize) (THIS_ UCHAR* buf, UINT32 nLen) PURE;
-
- STDMETHOD_(UINT32, ReadObj) (THIS_ IHXStreamableObj* pObj) PURE;
- STDMETHOD_(UINT32, ReadObj) (THIS_ IHXStreamableObj& pObj) PURE;
-
- STDMETHOD_(UINT32, ReadUCHAR) (THIS_ UCHAR& nValue) PURE;
- STDMETHOD_(UINT32, ReadUINT16) (THIS_ UINT16& nValue) PURE;
- STDMETHOD_(UINT32, ReadUINT32) (THIS_ UINT32& nValue) PURE;
- STDMETHOD_(UINT32, ReadString) (THIS_ CHXString& strValue) PURE;
- STDMETHOD_(UINT32, ReadAndAllocCString) (THIS_ char*& pszValue) PURE;
- STDMETHOD_(UINT32, ReadLargeString) (THIS_ CHXString& strValue) PURE;
- STDMETHOD_(UINT32, ReadAndAllocLargeCString) (THIS_ char*& pszValue) PURE;
- STDMETHOD_(UINT32, ReadBuffer) (THIS_ char* szBuffer, UINT32 nSize) PURE;
- STDMETHOD_(BOOL, IsEndOfData) () PURE;
- // arbitrarily change offset position.
- STDMETHOD(Seek) (UINT32 nPos) PURE;
- STDMETHOD(SkipForward) (UINT32 nAmount) PURE;
-
- STDMETHOD_(UINT32, GetOffset) (THIS) PURE;
- // get data and length
- STDMETHOD_(const char*, GetBuffer) (THIS) PURE;
- STDMETHOD_(UINT32, GetLength) (THIS) PURE;
- };
- #endif