From 96ade47c182bf37a2efca2aa62922e54e5ff1660 Mon Sep 17 00:00:00 2001
From: Arttu Tarkiainen <arttu.tarkiainen@qt.io>
Date: Wed, 6 Apr 2022 13:33:38 +0300
Subject: Move LZMA SDK to 3rdparty subdirectory

Also add attribution document.

Task-number: QTIFW-2336
Change-Id: I91546bc6c3ace244e4b546b945f40b7d204f7463
Reviewed-by: Katja Marttila <katja.marttila@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
---
 .../7zip/win/CPP/7zip/Common/StreamObjects.h       | 140 +++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 src/libs/3rdparty/7zip/win/CPP/7zip/Common/StreamObjects.h

(limited to 'src/libs/3rdparty/7zip/win/CPP/7zip/Common/StreamObjects.h')

diff --git a/src/libs/3rdparty/7zip/win/CPP/7zip/Common/StreamObjects.h b/src/libs/3rdparty/7zip/win/CPP/7zip/Common/StreamObjects.h
new file mode 100644
index 000000000..d0c86b566
--- /dev/null
+++ b/src/libs/3rdparty/7zip/win/CPP/7zip/Common/StreamObjects.h
@@ -0,0 +1,140 @@
+// StreamObjects.h
+
+#ifndef __STREAM_OBJECTS_H
+#define __STREAM_OBJECTS_H
+
+#include "../../Common/MyBuffer.h"
+#include "../../Common/MyCom.h"
+#include "../../Common/MyVector.h"
+
+#include "../IStream.h"
+
+struct CReferenceBuf:
+  public IUnknown,
+  public CMyUnknownImp
+{
+  CByteBuffer Buf;
+  MY_UNKNOWN_IMP
+};
+
+class CBufInStream:
+  public IInStream,
+  public CMyUnknownImp
+{
+  const Byte *_data;
+  UInt64 _pos;
+  size_t _size;
+  CMyComPtr<IUnknown> _ref;
+public:
+  void Init(const Byte *data, size_t size, IUnknown *ref = 0)
+  {
+    _data = data;
+    _size = size;
+    _pos = 0;
+    _ref = ref;
+  }
+  void Init(CReferenceBuf *ref) { Init(ref->Buf, ref->Buf.Size(), ref); }
+
+  MY_UNKNOWN_IMP2(ISequentialInStream, IInStream)
+  STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
+  STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition);
+};
+
+// void Create_BufInStream_WithReference(const void *data, size_t size, ISequentialInStream **stream);
+void Create_BufInStream_WithNewBuf(const void *data, size_t size, ISequentialInStream **stream);
+
+class CByteDynBuffer
+{
+  size_t _capacity;
+  Byte *_buf;
+public:
+  CByteDynBuffer(): _capacity(0), _buf(0) {};
+  // there is no copy constructor. So don't copy this object.
+  ~CByteDynBuffer() { Free(); }
+  void Free() throw();
+  size_t GetCapacity() const { return _capacity; }
+  operator Byte*() const { return _buf; };
+  operator const Byte*() const { return _buf; };
+  bool EnsureCapacity(size_t capacity) throw();
+};
+
+class CDynBufSeqOutStream:
+  public ISequentialOutStream,
+  public CMyUnknownImp
+{
+  CByteDynBuffer _buffer;
+  size_t _size;
+public:
+  CDynBufSeqOutStream(): _size(0) {}
+  void Init() { _size = 0;  }
+  size_t GetSize() const { return _size; }
+  const Byte *GetBuffer() const { return _buffer; }
+  void CopyToBuffer(CByteBuffer &dest) const;
+  Byte *GetBufPtrForWriting(size_t addSize);
+  void UpdateSize(size_t addSize) { _size += addSize; }
+
+  MY_UNKNOWN_IMP1(ISequentialOutStream)
+  STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
+};
+
+class CBufPtrSeqOutStream:
+  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_IMP1(ISequentialOutStream)
+  STDMETHOD(Write)(const 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_IMP1(ISequentialOutStream)
+  STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
+};
+
+class CCachedInStream:
+  public IInStream,
+  public CMyUnknownImp
+{
+  UInt64 *_tags;
+  Byte *_data;
+  size_t _dataSize;
+  unsigned _blockSizeLog;
+  unsigned _numBlocksLog;
+  UInt64 _size;
+  UInt64 _pos;
+protected:
+  virtual HRESULT ReadBlock(UInt64 blockIndex, Byte *dest, size_t blockSize) = 0;
+public:
+  CCachedInStream(): _tags(0), _data(0) {}
+  virtual ~CCachedInStream() { Free(); } // the destructor must be virtual (release calls it) !!!
+  void Free() throw();
+  bool Alloc(unsigned blockSizeLog, unsigned numBlocksLog) throw();
+  void Init(UInt64 size) throw();
+
+  MY_UNKNOWN_IMP2(ISequentialInStream, IInStream)
+  STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
+  STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition);
+};
+
+#endif
-- 
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