1 files changed, 208 insertions, 0 deletions
diff --git a/oox/source/xls/biffoutputstream.cxx b/oox/source/xls/biffoutputstream.cxx
new file mode 100644
index 000000000000..5ec8834c5336
--- /dev/null
+++ b/oox/source/xls/biffoutputstream.cxx
@@ -0,0 +1,208 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * 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.
+ *
+ ************************************************************************/
+
+#include "oox/xls/biffoutputstream.hxx"
+
+namespace oox {
+namespace xls {
+
+// ============================================================================
+
+namespace prv {
+
+BiffOutputRecordBuffer::BiffOutputRecordBuffer( BinaryOutputStream& rOutStrm, sal_uInt16 nMaxRecSize ) :
+    mrOutStrm( rOutStrm ),
+    mnMaxRecSize( nMaxRecSize ),
+    mnRecId( BIFF_ID_UNKNOWN ),
+    mbInRec( false )
+{
+    OSL_ENSURE( mrOutStrm.isSeekable(), "BiffOutputRecordBuffer::BiffOutputRecordBuffer - stream must be seekable" );
+    maData.reserve( SAL_MAX_UINT16 );
+}
+
+void BiffOutputRecordBuffer::startRecord( sal_uInt16 nRecId )
+{
+    OSL_ENSURE( !mbInRec, "BiffOutputRecordBuffer::startRecord - another record still open" );
+    mnRecId = nRecId;
+    maData.clear();
+    mbInRec = true;
+}
+
+void BiffOutputRecordBuffer::endRecord()
+{
+    OSL_ENSURE( mbInRec, "BiffOutputRecordBuffer::endRecord - no record open" );
+    sal_uInt16 nRecSize = getLimitedValue< sal_uInt16, size_t >( maData.size(), 0, SAL_MAX_UINT16 );
+    mrOutStrm.seekToEnd();
+    mrOutStrm << mnRecId << nRecSize;
+    if( nRecSize > 0 )
+        mrOutStrm.writeMemory( &maData.front(), nRecSize );
+    mbInRec = false;
+}
+
+void BiffOutputRecordBuffer::write( const void* pData, sal_uInt16 nBytes )
+{
+    OSL_ENSURE( mbInRec, "BiffOutputRecordBuffer::write - no record open" );
+    OSL_ENSURE( nBytes > 0, "BiffOutputRecordBuffer::write - nothing to write" );
+    OSL_ENSURE( nBytes <= getRecLeft(), "BiffOutputRecordBuffer::write - buffer overflow" );
+    maData.resize( maData.size() + nBytes );
+    memcpy( &*(maData.end() - nBytes), pData, nBytes );
+}
+
+void BiffOutputRecordBuffer::fill( sal_uInt8 nValue, sal_uInt16 nBytes )
+{
+    OSL_ENSURE( mbInRec, "BiffOutputRecordBuffer::write - no record open" );
+    OSL_ENSURE( nBytes > 0, "BiffOutputRecordBuffer::write - nothing to write" );
+    OSL_ENSURE( nBytes <= getRecLeft(), "BiffOutputRecordBuffer::write - buffer overflow" );
+    maData.resize( maData.size() + nBytes, nValue );
+}
+
+} // namespace prv
+
+// ============================================================================
+
+BiffOutputStream::BiffOutputStream( BinaryOutputStream& rOutStream, sal_uInt16 nMaxRecSize ) :
+    maRecBuffer( rOutStream, nMaxRecSize ),
+    mnPortionSize( 0 ),
+    mnPortionPos( 0 )
+{
+}
+
+// record control -------------------------------------------------------------
+
+void BiffOutputStream::startRecord( sal_uInt16 nRecId )
+{
+    maRecBuffer.startRecord( nRecId );
+    setPortionSize( 0 );
+}
+
+void BiffOutputStream::endRecord()
+{
+    setPortionSize( 0 );
+    maRecBuffer.endRecord();
+}
+
+void BiffOutputStream::setPortionSize( sal_uInt16 nSize )
+{
+    OSL_ENSURE( mnPortionPos == 0, "BiffOutputStream::setPortionSize - block operation inside portion" );
+    mnPortionSize = nSize;
+    mnPortionPos = 0;
+}
+
+// BinaryStreamBase interface (seeking) ---------------------------------------
+
+sal_Int64 BiffOutputStream::tellBase() const
+{
+    return maRecBuffer.getBaseStream().tell();
+}
+
+sal_Int64 BiffOutputStream::getBaseLength() const
+{
+    return maRecBuffer.getBaseStream().getLength();
+}
+
+// BinaryOutputStream interface (stream write access) -------------------------
+
+void BiffOutputStream::writeData( const StreamDataSequence& rData )
+{
+    if( rData.hasElements() )
+        writeMemory( rData.getConstArray(), rData.getLength() );
+}
+
+void BiffOutputStream::writeMemory( const void* pMem, sal_Int32 nBytes )
+{
+    if( pMem && (nBytes > 0) )
+    {
+        const sal_uInt8* pnBuffer = reinterpret_cast< const sal_uInt8* >( pMem );
+        sal_Int32 nBytesLeft = nBytes;
+        while( nBytesLeft > 0 )
+        {
+            sal_uInt16 nBlockSize = prepareRawBlock( nBytesLeft );
+            maRecBuffer.write( pnBuffer, nBlockSize );
+            pnBuffer += nBlockSize;
+            nBytesLeft -= nBlockSize;
+        }
+    }
+}
+
+void BiffOutputStream::fill( sal_uInt8 nValue, sal_Int32 nBytes )
+{
+    sal_Int32 nBytesLeft = nBytes;
+    while( nBytesLeft > 0 )
+    {
+        sal_uInt16 nBlockSize = prepareRawBlock( nBytesLeft );
+        maRecBuffer.fill( nValue, nBlockSize );
+        nBytesLeft -= nBlockSize;
+    }
+}
+
+void BiffOutputStream::writeBlock( const void* pMem, sal_uInt16 nBytes )
+{
+    ensureRawBlock( nBytes );
+    maRecBuffer.write( pMem, nBytes );
+}
+
+// private --------------------------------------------------------------------
+
+void BiffOutputStream::writeAtom( const void* pMem, sal_uInt8 nSize )
+{
+    // byte swapping is done in calling BinaryOutputStream::writeValue() template function
+    writeBlock( pMem, nSize );
+}
+
+void BiffOutputStream::ensureRawBlock( sal_uInt16 nSize )
+{
+    if( (maRecBuffer.getRecLeft() < nSize) ||
+        ((mnPortionSize > 0) && (mnPortionPos == 0) && (maRecBuffer.getRecLeft() < mnPortionSize)) )
+    {
+        maRecBuffer.endRecord();
+        maRecBuffer.startRecord( BIFF_ID_CONT );
+    }
+    if( mnPortionSize > 0 )
+    {
+        OSL_ENSURE( mnPortionPos + nSize <= mnPortionSize, "BiffOutputStream::ensureRawBlock - portion overflow" );
+        mnPortionPos = (mnPortionPos + nSize) % mnPortionSize;  // prevent compiler warning, do not use operator+=, operator%=
+    }
+}
+
+sal_uInt16 BiffOutputStream::prepareRawBlock( sal_Int32 nTotalSize )
+{
+    sal_uInt16 nRecLeft = maRecBuffer.getRecLeft();
+    if( mnPortionSize > 0 )
+    {
+        OSL_ENSURE( mnPortionPos == 0, "BiffOutputStream::prepareRawBlock - block operation inside portion" );
+        OSL_ENSURE( nTotalSize % mnPortionSize == 0, "BiffOutputStream::prepareRawBlock - portion size does not match block size" );
+        nRecLeft = (nRecLeft / mnPortionSize) * mnPortionSize;
+    }
+    sal_uInt16 nSize = getLimitedValue< sal_uInt16, sal_Int32 >( nTotalSize, 0, nRecLeft );
+    ensureRawBlock( nSize );
+    return nSize;
+}
+// ============================================================================
+
+} // namespace xls
+} // namespace oox
+