diff -r ea891871f481 -r bb5522e88ab2 misc/libphysfs/lzma/CPP/7zip/Common/StreamObjects.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CPP/7zip/Common/StreamObjects.h	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,117 @@
+// StreamObjects.h
+
+#ifndef __STREAMOBJECTS_H
+#define __STREAMOBJECTS_H
+
+#include "../../Common/DynamicBuffer.h"
+#include "../../Common/MyCom.h"
+#include "../IStream.h"
+
+class CSequentialInStreamImp: 
+  public ISequentialInStream,
+  public CMyUnknownImp
+{
+  const Byte *_dataPointer;
+  size_t _size;
+  size_t _pos;
+
+public:
+  void Init(const Byte *dataPointer, size_t size)
+  {
+    _dataPointer = dataPointer;
+    _size = size;
+    _pos = 0;
+  }
+
+  MY_UNKNOWN_IMP
+
+  STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
+};
+
+
+class CWriteBuffer
+{
+  CByteDynamicBuffer _buffer;
+  size_t _size;
+public:
+  CWriteBuffer(): _size(0) {}
+  void Init() { _size = 0;  }
+  void Write(const void *data, size_t size);
+  size_t GetSize() const { return _size; }
+  const CByteDynamicBuffer& GetBuffer() const { return _buffer; }
+};
+
+class CSequentialOutStreamImp: 
+  public ISequentialOutStream,
+  public CMyUnknownImp
+{
+  CWriteBuffer _writeBuffer;
+public:
+  void Init() { _writeBuffer.Init(); }
+  size_t GetSize() const { return _writeBuffer.GetSize(); }
+  const CByteDynamicBuffer& GetBuffer() const { return _writeBuffer.GetBuffer(); }
+
+  MY_UNKNOWN_IMP
+
+  STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
+};
+
+class CSequentialOutStreamImp2: 
+  public ISequentialOutStream,
+  public CMyUnknownImp
+{
+  Byte *_buffer;
+  size_t _size;
+  size_t _pos;
+public:
+
+  void Init(Byte *buffer, size_t size)  
+  { 
+    _buffer = buffer;
+    _pos = 0;
+    _size = size; 
+  }
+
+  size_t GetPos() const { return _pos; }
+
+  MY_UNKNOWN_IMP
+
+  STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
+};
+
+class CSequentialInStreamSizeCount: 
+  public ISequentialInStream,
+  public CMyUnknownImp
+{
+  CMyComPtr<ISequentialInStream> _stream;
+  UInt64 _size;
+public:
+  void Init(ISequentialInStream *stream)
+  {
+    _stream = stream;
+    _size = 0;
+  }
+  UInt64 GetSize() const { return _size; }
+
+  MY_UNKNOWN_IMP
+
+  STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
+};
+
+class CSequentialOutStreamSizeCount: 
+  public ISequentialOutStream,
+  public CMyUnknownImp
+{
+  CMyComPtr<ISequentialOutStream> _stream;
+  UInt64 _size;
+public:
+  void SetStream(ISequentialOutStream *stream) { _stream = stream; }
+  void Init() { _size = 0; }
+  UInt64 GetSize() const { return _size; }
+
+  MY_UNKNOWN_IMP
+
+  STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
+};
+
+#endif