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- /* Copyright (C) 2002-2003 RealVNC Ltd. All Rights Reserved.
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This software 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
- */
-
- #include <rdr/NullOutStream.h>
- #include <rdr/Exception.h>
-
- using namespace rdr;
-
- static const int bufferSize = 1024;
-
- NullOutStream::NullOutStream()
- : offset(0)
- {
- start = ptr = new U8[bufferSize];
- end = start + bufferSize;
- }
-
- NullOutStream::~NullOutStream()
- {
- delete [] start;
- }
-
- int NullOutStream::length()
- {
- return offset + ptr - start;
- }
-
- void NullOutStream::writeBytes(const void* data, int length)
- {
- offset += length;
- }
-
- int NullOutStream::overrun(int itemSize, int nItems)
- {
- if (itemSize > bufferSize)
- throw Exception("NullOutStream overrun: max itemSize exceeded");
-
- offset += ptr - start;
- ptr = start;
-
- if (itemSize * nItems > end - ptr)
- nItems = (end - ptr) / itemSize;
-
- return nItems;
- }
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