83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
// Filename: zStream.h
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// Created by: drose (05Aug02)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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#ifndef ZSTREAM_H
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#define ZSTREAM_H
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#include "pandabase.h"
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// This module is not compiled if zlib is not available.
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#ifdef HAVE_ZLIB
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#include "zStreamBuf.h"
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////////////////////////////////////////////////////////////////////
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// Class : IDecompressStream
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// Description : An input stream object that uses zlib to decompress
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// (inflate) the input from another source stream
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// on-the-fly.
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//
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// Attach an IDecompressStream to an existing istream that
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// provides compressed data, and read the corresponding
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// uncompressed data from the IDecompressStream.
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//
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// Seeking is not supported.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDAEXPRESS IDecompressStream : public istream {
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PUBLISHED:
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INLINE IDecompressStream();
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INLINE IDecompressStream(istream *source, bool owns_source);
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INLINE IDecompressStream &open(istream *source, bool owns_source);
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INLINE IDecompressStream &close();
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private:
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ZStreamBuf _buf;
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};
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////////////////////////////////////////////////////////////////////
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// Class : OCompressStream
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// Description : An input stream object that uses zlib to compress
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// (deflate) data to another destination stream
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// on-the-fly.
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//
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// Attach an OCompressStream to an existing ostream that will
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// accept compressed data, and write your uncompressed
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// source data to the OCompressStream.
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//
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// Seeking is not supported.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDAEXPRESS OCompressStream : public ostream {
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PUBLISHED:
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INLINE OCompressStream();
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INLINE OCompressStream(ostream *dest, bool owns_dest,
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int compression_level = 6);
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INLINE OCompressStream &open(ostream *dest, bool owns_dest,
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int compression_level = 6);
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INLINE OCompressStream &close();
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private:
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ZStreamBuf _buf;
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};
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#include "zStream.I"
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#endif // HAVE_ZLIB
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#endif
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