diff options
Diffstat (limited to 'shell/source/win32/shlxthandler/ooofilt/stream_helper.cxx')
| -rwxr-xr-x | shell/source/win32/shlxthandler/ooofilt/stream_helper.cxx | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/shell/source/win32/shlxthandler/ooofilt/stream_helper.cxx b/shell/source/win32/shlxthandler/ooofilt/stream_helper.cxx new file mode 100755 index 000000000000..e12f95a88e50 --- /dev/null +++ b/shell/source/win32/shlxthandler/ooofilt/stream_helper.cxx @@ -0,0 +1,181 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2010 by Sun Microsystems, Inc. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_shell.hxx" + +#if defined _MSC_VER +#pragma warning(push, 1) +#endif +#include <windows.h> +#if defined _MSC_VER +#pragma warning(pop) +#endif + +#include <stdio.h> +#include <objidl.h> + +/*#include <string.h> +#include <filter.h> +#include <filterr.h> +#include <ntquery.h> +#include "assert.h" +#include "propspec.hxx" +#ifdef __MINGW32__ +#include <algorithm> +using ::std::min; +#endif +*/ + +#include "internal/stream_helper.hxx" + +extern "C" { + voidpf ZCALLBACK cb_sopen OF((voidpf opaque, const char * filename, int mode)); + uLong ZCALLBACK cb_sread OF((voidpf opaque, voidpf stream, void* vuf, uLong size)); + uLong ZCALLBACK cb_swrite OF((voidpf opaque, voidpf stream, const void* buf, uLong size)); + long ZCALLBACK cb_stell OF((voidpf opaque, voidpf stream)); + long ZCALLBACK cb_sseek OF((voidpf opaque, voidpf stream, uLong offset, int origin)); + int ZCALLBACK cb_sclose OF((voidpf opaque, voidpf stream)); + int ZCALLBACK cb_serror OF((voidpf opaque, voidpf stream)); + + void fill_stream_filefunc (zlib_filefunc_def* pzlib_filefunc_def); +} + +//----------------------------- +IStream* PrepareIStream( IStream* pStream, zlib_filefunc_def &zFileFunc ) +{ + // These next few lines work around the "Seek pointer" bug found on Vista. + char cBuf[20]; + unsigned long nCount; + HRESULT hr; + ULARGE_INTEGER nNewPosition; + LARGE_INTEGER nMove; + nMove.QuadPart = 0; + hr = pStream->Seek( nMove, STREAM_SEEK_SET, &nNewPosition ); + hr = pStream->Read( cBuf, 20, &nCount ); + + fill_stream_filefunc( &zFileFunc ); + zFileFunc.opaque = (void*)pStream; + + return pStream; +} + +extern "C" { + + // IStream callback + voidpf ZCALLBACK cb_sopen (voidpf opaque, const char* /*filename*/, int /*mode*/) { + return opaque; + } + + uLong ZCALLBACK cb_sread (voidpf /*opaque*/, voidpf stream, void* buf, uLong size) { + unsigned long newsize; + HRESULT hr; + + hr = ((IStream *)stream)->Read (buf, size, &newsize); + if (hr == S_OK){ + return (unsigned long)newsize; + } + else { + return (uLong)0; + } + } + + long ZCALLBACK cb_sseek (voidpf /*opaque*/, voidpf stream, uLong offset, int origin) { + // IStream::Seek parameters + HRESULT hr; + LARGE_INTEGER Move; + DWORD dwOrigin; + Move.QuadPart = (__int64)offset; + + switch (origin) { + case SEEK_CUR: + dwOrigin = STREAM_SEEK_CUR; + break; + case SEEK_END: + dwOrigin = STREAM_SEEK_END; + break; + case SEEK_SET: + dwOrigin = STREAM_SEEK_SET; + break; + default: + return -1; + } + + hr = ((IStream*)stream)->Seek (Move, dwOrigin, NULL); + if (hr == S_OK){ + return 0; + } + else { + return -1; + } + } + + long ZCALLBACK cb_stell (voidpf /*opaque*/, voidpf stream) { + // IStream::Seek parameters + HRESULT hr; + LARGE_INTEGER Move; + ULARGE_INTEGER NewPosition; + Move.QuadPart = 0; + NewPosition.QuadPart = 0; + + hr = ((IStream*)stream)->Seek (Move, STREAM_SEEK_CUR, &NewPosition); + if (hr == S_OK){ + return (long) NewPosition.QuadPart; + } + else { + return -1; + } + } + + int ZCALLBACK cb_sclose (voidpf /*opaque*/, voidpf /*stream*/) { + return 0; + } + + int ZCALLBACK cb_serror (voidpf /*opaque*/, voidpf /*stream*/) { + return 0; //RJK - for now + } + + uLong ZCALLBACK cb_swrite (voidpf /*opaque*/, voidpf stream, const void* buf, uLong size) { + HRESULT hr; + unsigned long writecount; + hr = ((IStream*)stream)->Write (buf, size, &writecount); + if (hr == S_OK) + return (unsigned int)writecount; + else + return (uLong)0; + } + + void fill_stream_filefunc (zlib_filefunc_def* pzlib_filefunc_def) { + pzlib_filefunc_def->zopen_file = cb_sopen; + pzlib_filefunc_def->zread_file = cb_sread; + pzlib_filefunc_def->zwrite_file = cb_swrite; + pzlib_filefunc_def->ztell_file = cb_stell; + pzlib_filefunc_def->zseek_file = cb_sseek; + pzlib_filefunc_def->zclose_file = cb_sclose; + pzlib_filefunc_def->zerror_file = cb_serror; + } +} |