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author Miodrag Milanovic <mmicko@gmail.com>2015-01-11 08:10:25 +0100
committer Miodrag Milanovic <mmicko@gmail.com>2015-01-11 08:10:25 +0100
commit6a23c2f3b766cf4fc7028628f76b5ff9396383f0 (patch)
treea01e16637118ae0c80f337119898bdf18f081e24 /3rdparty/lzma/CPP/7zip/Common/OffsetStream.cpp
parent45ac9b351e0076c371de4c7453f59567b27b1cb6 (diff)
Added full lzma sdk source (nw)
Diffstat (limited to '3rdparty/lzma/CPP/7zip/Common/OffsetStream.cpp')
-rw-r--r--3rdparty/lzma/CPP/7zip/Common/OffsetStream.cpp35
1 files changed, 35 insertions, 0 deletions
diff --git a/3rdparty/lzma/CPP/7zip/Common/OffsetStream.cpp b/3rdparty/lzma/CPP/7zip/Common/OffsetStream.cpp
new file mode 100644
index 00000000000..c5e4e6da474
--- /dev/null
+++ b/3rdparty/lzma/CPP/7zip/Common/OffsetStream.cpp
@@ -0,0 +1,35 @@
+// OffsetStream.cpp
+
+#include "StdAfx.h"
+
+#include "Common/Defs.h"
+#include "OffsetStream.h"
+
+HRESULT COffsetOutStream::Init(IOutStream *stream, UInt64 offset)
+{
+ _offset = offset;
+ _stream = stream;
+ return _stream->Seek(offset, STREAM_SEEK_SET, NULL);
+}
+
+STDMETHODIMP COffsetOutStream::Write(const void *data, UInt32 size, UInt32 *processedSize)
+{
+ return _stream->Write(data, size, processedSize);
+}
+
+STDMETHODIMP COffsetOutStream::Seek(Int64 offset, UInt32 seekOrigin,
+ UInt64 *newPosition)
+{
+ UInt64 absoluteNewPosition;
+ if (seekOrigin == STREAM_SEEK_SET)
+ offset += _offset;
+ HRESULT result = _stream->Seek(offset, seekOrigin, &absoluteNewPosition);
+ if (newPosition != NULL)
+ *newPosition = absoluteNewPosition - _offset;
+ return result;
+}
+
+STDMETHODIMP COffsetOutStream::SetSize(UInt64 newSize)
+{
+ return _stream->SetSize(_offset + newSize);
+}