From ed5640d8b587fbcfed7dd7967f3de04b37a76f26 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:06:44 +0200 Subject: Adding upstream version 4:7.4.7. Signed-off-by: Daniel Baumann --- lotuswordpro/source/filter/lwpobjhdr.cxx | 200 +++++++++++++++++++++++++++++++ 1 file changed, 200 insertions(+) create mode 100644 lotuswordpro/source/filter/lwpobjhdr.cxx (limited to 'lotuswordpro/source/filter/lwpobjhdr.cxx') diff --git a/lotuswordpro/source/filter/lwpobjhdr.cxx b/lotuswordpro/source/filter/lwpobjhdr.cxx new file mode 100644 index 000000000..d8474525e --- /dev/null +++ b/lotuswordpro/source/filter/lwpobjhdr.cxx @@ -0,0 +1,200 @@ +/************************************************************************* + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * 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 + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (the "License"); You may not use this file + * except in compliance with the License. You may obtain a copy of the + * License at http://www.openoffice.org/license.html. + * + * Software provided under this License is provided on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: IBM Corporation + * + * Copyright: 2008 by IBM Corporation + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ +/************************************************************************* + * @file + * For LWP filter architecture prototype + ************************************************************************/ + +#include +#include +#include +#include + +LwpObjectHeader::LwpObjectHeader() + : m_nTag(0) + , m_nSize(0) + , m_bCompressed(false) +{ +} +/** + * @descr read header from stream + */ +bool LwpObjectHeader::Read(LwpSvStream& rStrm) +{ + sal_uInt32 nVersionID = 0; + sal_uInt32 nRefCount = 0; + sal_uInt32 nNextVersionOffset = 0; + sal_uInt32 nHeaderSize = 0; + + sal_Int64 nStartPos = rStrm.Tell(); + + if (LwpFileHeader::m_nFileRevision < 0x000B) + { + rStrm.ReadUInt32(m_nTag); + m_ID.Read(&rStrm); + rStrm.ReadUInt32(nVersionID); + rStrm.ReadUInt32(nRefCount); + rStrm.ReadUInt32(nNextVersionOffset); + + nHeaderSize = sizeof(m_nTag) + LwpObjectID::DiskSize() + sizeof(nVersionID) + + sizeof(nRefCount) + sizeof(nNextVersionOffset) + sizeof(m_nSize); + + if ((m_nTag == TAG_AMI) || (LwpFileHeader::m_nFileRevision < 0x0006)) + { + sal_uInt32 nNextVersionID = 0; + rStrm.ReadUInt32(nNextVersionID); + nHeaderSize += sizeof(nNextVersionID); + } + rStrm.ReadUInt32(m_nSize); + } + else + { + sal_uInt8 nFlagBits = 0; + sal_uInt16 VOType = 0; + if (rStrm.remainingSize() < 3) + return false; + rStrm.ReadUInt16(VOType); + rStrm.ReadUInt8(nFlagBits); + + m_nTag = static_cast(VOType); + m_ID.ReadIndexed(&rStrm); + nHeaderSize = sizeof(VOType) + sizeof(nFlagBits) + m_ID.DiskSizeIndexed(); + + sal_uInt8 tmpByte; + sal_uInt16 tmpShort; + switch (nFlagBits & VERSION_BITS) + { + case ONE_BYTE_VERSION: + rStrm.ReadUInt8(tmpByte); + nVersionID = static_cast(tmpByte); + nHeaderSize++; + break; + + case TWO_BYTE_VERSION: + rStrm.ReadUInt16(tmpShort); + nVersionID = static_cast(tmpShort); + nHeaderSize += 2; + break; + + case FOUR_BYTE_VERSION: + rStrm.ReadUInt32(nVersionID); + nHeaderSize += 4; + break; + case DEFAULT_VERSION: //fall through + default: + nVersionID = 2; + break; // nothing + } + + switch (nFlagBits & REFCOUNT_BITS) + { + case ONE_BYTE_REFCOUNT: + rStrm.ReadUInt8(tmpByte); + nRefCount = static_cast(tmpByte); + nHeaderSize++; + break; + + case TWO_BYTE_REFCOUNT: + rStrm.ReadUInt16(tmpShort); + nRefCount = static_cast(tmpShort); + nHeaderSize += 2; + break; + + case FOUR_BYTE_REFCOUNT: //through + default: + rStrm.ReadUInt32(nRefCount); + nHeaderSize += 4; + break; + } + + if (nFlagBits & HAS_PREVOFFSET) + { + rStrm.ReadUInt32(nNextVersionOffset); + nHeaderSize += 4; + } + else + nNextVersionOffset = BAD_OFFSET; + + switch (nFlagBits & SIZE_BITS) + { + case ONE_BYTE_SIZE: + rStrm.ReadUInt8(tmpByte); + m_nSize = static_cast(tmpByte); + nHeaderSize++; + break; + + case TWO_BYTE_SIZE: + rStrm.ReadUInt16(tmpShort); + m_nSize = static_cast(tmpShort); + nHeaderSize += 2; + break; + + case FOUR_BYTE_SIZE: //go through + default: + rStrm.ReadUInt32(m_nSize); + nHeaderSize += 4; + break; + } + + if (nFlagBits & DATA_COMPRESSED) + { + m_bCompressed = true; + } + } + sal_Int64 nEndPos = rStrm.Tell(); + return rStrm.good() && (nStartPos + nHeaderSize == nEndPos); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3