Initial commit

Torque/SDK/engine/core/zipSubStream.h

@@ -0,0 +1,97 @@
+//-----------------------------------------------------------------------------
+// Torque Game Engine
+// Copyright (C) GarageGames.com, Inc.
+//-----------------------------------------------------------------------------
+
+#ifndef _ZIPSUBSTREAM_H_
+#define _ZIPSUBSTREAM_H_
+
+//Includes
+#ifndef _FILTERSTREAM_H_
+#include "core/filterStream.h"
+#endif
+
+struct z_stream_s;
+
+class ZipSubRStream : public FilterStream
+{
+   typedef FilterStream Parent;
+   static const U32 csm_streamCaps;
+   static const U32 csm_inputBufferSize;
+
+   Stream* m_pStream;
+   U32     m_uncompressedSize;
+   U32     m_currentPosition;
+   bool     m_EOS;
+
+   z_stream_s*  m_pZipStream;
+   U8*          m_pInputBuffer;
+
+   U32          m_originalSlavePosition;
+
+   U32 fillBuffer(const U32 in_attemptSize);
+
+  public:
+   ZipSubRStream();
+   virtual ~ZipSubRStream();
+
+   // Overrides of NFilterStream
+  public:
+   bool    attachStream(Stream* io_pSlaveStream);
+   void    detachStream();
+   Stream* getStream();
+
+   void setUncompressedSize(const U32);
+
+   // Mandatory overrides.  By default, these are simply passed to
+   //  whatever is returned from getStream();
+  protected:
+   bool _read(const U32 in_numBytes,  void* out_pBuffer);
+  public:
+   bool hasCapability(const Capability) const;
+
+   U32  getPosition() const;
+   bool setPosition(const U32 in_newPosition);
+
+   U32  getStreamSize();
+};
+
+class ZipSubWStream : public FilterStream
+{
+   typedef FilterStream Parent;
+   static const U32 csm_streamCaps;
+   static const U32 csm_bufferSize;
+
+   Stream*      m_pStream;
+   z_stream_s*  m_pZipStream;
+
+   U32          m_currPosition;  // Indicates number of _uncompressed_ bytes written
+
+   U8*          m_pOutputBuffer;
+   U8*          m_pInputBuffer;
+
+  public:
+   ZipSubWStream();
+   virtual ~ZipSubWStream();
+
+   // Overrides of NFilterStream
+  public:
+   bool    attachStream(Stream* io_pSlaveStream);
+   void    detachStream();
+   Stream* getStream();
+
+   // Mandatory overrides.  By default, these are simply passed to
+   //  whatever is returned from getStream();
+  protected:
+   bool _read(const U32 in_numBytes,  void* out_pBuffer);
+   bool _write(const U32 in_numBytes, const void* in_pBuffer);
+  public:
+   bool hasCapability(const Capability) const;
+
+   U32  getPosition() const;
+   bool setPosition(const U32 in_newPosition);
+
+   U32  getStreamSize();
+};
+
+#endif //_ZIPSUBSTREAM_H_