text: //-----------------------------------------------------------------------------
  // Copyright (c) 2013 GarageGames, LLC
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to
  // deal in the Software without restriction, including without limitation the
  // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  // sell copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  // IN THE SOFTWARE.
  //-----------------------------------------------------------------------------
  
  #ifndef _BUFFERSTREAM_H_
  #define _BUFFERSTREAM_H_
  
  #ifndef _PLATFORM_FILEIO_H_
  #include "platform/platformFileIO.h"
  #endif
  
  #ifndef _STREAM_H_
  #include "io/stream.h"
  #endif
  
  
  //-Mat this class is completely stripped down, it's only purpose is
  //to allow writing to a buffer when a Stream is expected, Used for compiling DSO
  //straight to memory without saving to a filesystem
  
  
  class BufferStream : public Stream
  {
  public:
     enum
     {
        BUFFER_SIZE = 8 * 1024,         // this can be changed to anything appropriate
        BUFFER_INVALID = 0xffffffff      // file offsets must all be less than this
     };
  
  protected:
      U32 mBufferLen;
      U32 mReadPosition;
      //putting this after U32's will long align the data
      U8 mBuffer[BUFFER_SIZE];
  
  public:
     BufferStream();                       // default constructor
     virtual ~BufferStream();              // destructor
  
     // mandatory methods from Stream base class...
     virtual bool hasCapability(const Capability i_cap) const { return false; }
  
     virtual U32  getPosition() const { return mReadPosition; }
     virtual bool setPosition(const U32 i_newPosition) { return mReadPosition = i_newPosition; }
     virtual U32  getStreamSize() { return mBufferLen; }
  
     virtual void close();
     virtual void open();
  
     U8 *getBuffer() { return mBuffer; }
     U32 getBufferLength() { return mBufferLen; }
  
  protected:
     // more mandatory methods from Stream base class...
     virtual bool _read(const U32 i_numBytes, void *o_pBuffer);
     virtual bool _write(const U32 i_numBytes, const void* i_pBuffer);
  
     void init();
     bool fillBuffer(const U32 i_startPosition) { return false; }
     void clearBuffer() {}
     static void calcBlockHead(const U32 i_position, U32 *o_blockHead) {}
     static void calcBlockBounds(const U32 i_position, U32 *o_blockHead, U32 *o_blockTail) {}
     void setStatus() {}
  };
  
  #endif // _BUFFERSTREAM_H_
  