1 files changed, 184 insertions, 0 deletions
diff --git a/oox/source/helper/binaryoutputstream.cxx b/oox/source/helper/binaryoutputstream.cxx
new file mode 100644
index 0000000000..50ce7f11ce
--- /dev/null
+++ b/oox/source/helper/binaryoutputstream.cxx
@@ -0,0 +1,184 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <oox/helper/binaryoutputstream.hxx>
+
+#include <com/sun/star/io/XOutputStream.hpp>
+#include <com/sun/star/io/XSeekable.hpp>
+#include <osl/diagnose.h>
+#include <string.h>
+
+namespace oox {
+
+using namespace ::com::sun::star::io;
+using namespace ::com::sun::star::uno;
+
+namespace {
+
+const sal_Int32 OUTPUTSTREAM_BUFFERSIZE     = 0x8000;
+
+} // namespace
+
+BinaryXOutputStream::BinaryXOutputStream( const Reference< XOutputStream >& rxOutStrm, bool bAutoClose ) :
+    BinaryStreamBase( Reference< XSeekable >( rxOutStrm, UNO_QUERY ).is() ),
+    BinaryXSeekableStream( Reference< XSeekable >( rxOutStrm, UNO_QUERY ) ),
+    maBuffer( OUTPUTSTREAM_BUFFERSIZE ),
+    mxOutStrm( rxOutStrm ),
+    mbAutoClose( bAutoClose && rxOutStrm.is() )
+{
+    mbEof = !mxOutStrm.is();
+}
+
+BinaryXOutputStream::~BinaryXOutputStream()
+{
+    close();
+}
+
+void BinaryXOutputStream::close()
+{
+    OSL_ENSURE( !mbAutoClose || mxOutStrm.is(), "BinaryXOutputStream::close - invalid call" );
+    if( mxOutStrm.is() ) try
+    {
+        mxOutStrm->flush();
+        if ( mbAutoClose )
+            mxOutStrm->closeOutput();
+    }
+    catch( Exception& )
+    {
+        OSL_FAIL( "BinaryXOutputStream::close - closing output stream failed" );
+    }
+    mxOutStrm.clear();
+    mbAutoClose = false;
+    BinaryXSeekableStream::close();
+}
+
+void BinaryXOutputStream::writeData( const StreamDataSequence& rData, size_t /*nAtomSize*/ )
+{
+    if( mxOutStrm.is() ) try
+    {
+        mxOutStrm->writeBytes( rData );
+    }
+    catch( Exception& )
+    {
+        OSL_FAIL( "BinaryXOutputStream::writeData - stream read error" );
+    }
+}
+
+void BinaryXOutputStream::writeMemory( const void* pMem, sal_Int32 nBytes, size_t nAtomSize )
+{
+    if( !(mxOutStrm.is() && (nBytes > 0)) )
+        return;
+
+    sal_Int32 nBufferSize = getLimitedValue< sal_Int32, sal_Int32 >( nBytes, 0, (OUTPUTSTREAM_BUFFERSIZE / nAtomSize) * nAtomSize );
+    const sal_uInt8* pnMem = static_cast< const sal_uInt8* >( pMem );
+    while( nBytes > 0 )
+    {
+        sal_Int32 nWriteSize = getLimitedValue< sal_Int32, sal_Int32 >( nBytes, 0, nBufferSize );
+        maBuffer.realloc( nWriteSize );
+        memcpy( maBuffer.getArray(), pnMem, static_cast< size_t >( nWriteSize ) );
+        writeData( maBuffer, nAtomSize );
+        pnMem += nWriteSize;
+        nBytes -= nWriteSize;
+    }
+}
+
+void
+BinaryOutputStream::writeCharArrayUC( std::u16string_view rString, rtl_TextEncoding eTextEnc )
+{
+    OString sBuf( OUStringToOString( rString, eTextEnc ) );
+    sBuf = sBuf.replace( '\0', '?' );
+    writeMemory( static_cast< const void* >( sBuf.getStr() ), sBuf.getLength() );
+}
+
+void
+BinaryOutputStream::writeUnicodeArray( const OUString& rString )
+{
+    OUString sBuf = rString.replace( '\0', '?' );
+#ifdef OSL_BIGENDIAN
+    // need a non-const buffer for swapping byte order
+    sal_Unicode notConst[sBuf.getLength()];
+    memcpy( notConst, sBuf.getStr(), sizeof(sal_Unicode)*sBuf.getLength() );
+    writeArray( notConst, sBuf.getLength() );
+#else
+    writeArray( sBuf.getStr(), sBuf.getLength() );
+#endif
+}
+
+void BinaryOutputStream::writeCompressedUnicodeArray( const OUString& rString, bool bCompressed )
+{
+    if ( bCompressed )
+         // ISO-8859-1 maps all byte values 0xHH to the same Unicode code point U+00HH
+        writeCharArrayUC( rString, RTL_TEXTENCODING_ISO_8859_1 );
+    else
+        writeUnicodeArray( rString );
+}
+
+SequenceOutputStream::SequenceOutputStream( StreamDataSequence & rData ) :
+    BinaryStreamBase( true ),
+    mpData( &rData ),
+    mnPos( 0 )
+{
+}
+
+void SequenceOutputStream::writeData( const StreamDataSequence& rData, size_t nAtomSize )
+{
+    if( mpData && rData.hasElements() )
+        writeMemory( rData.getConstArray(), rData.getLength(), nAtomSize );
+}
+
+void SequenceOutputStream::writeMemory( const void* pMem, sal_Int32 nBytes, size_t /*nAtomSize*/ )
+{
+    if( mpData && (nBytes > 0) )
+    {
+        if( mpData->getLength() - mnPos < nBytes )
+            mpData->realloc( mnPos + nBytes );
+        memcpy( mpData->getArray() + mnPos, pMem, static_cast< size_t >( nBytes ) );
+        mnPos += nBytes;
+    }
+}
+
+sal_Int64 SequenceOutputStream::size() const
+{
+    return mpData ? mpData->getLength() : -1;
+}
+
+sal_Int64 SequenceOutputStream::tell() const
+{
+    return mpData ? mnPos : -1;
+}
+
+void SequenceOutputStream::seek( sal_Int64 nPos )
+{
+    if( mpData )
+    {
+        mnPos = getLimitedValue< sal_Int32, sal_Int64 >( nPos, 0, mpData->getLength() );
+        mbEof = mnPos != nPos;
+    }
+}
+
+void SequenceOutputStream::close()
+{
+    mpData = nullptr;
+    mbEof = true;
+}
+
+
+} // namespace oox
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */