summaryrefslogtreecommitdiffstatshomepage
path: root/3rdparty/lzma/CPP/7zip/Archive/Common/InStreamWithCRC.cpp
diff options
context:
space:
mode:
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/Archive/Common/InStreamWithCRC.cpp
parent45ac9b351e0076c371de4c7453f59567b27b1cb6 (diff)
Added full lzma sdk source (nw)
Diffstat (limited to '3rdparty/lzma/CPP/7zip/Archive/Common/InStreamWithCRC.cpp')
-rw-r--r--3rdparty/lzma/CPP/7zip/Archive/Common/InStreamWithCRC.cpp42
1 files changed, 42 insertions, 0 deletions
diff --git a/3rdparty/lzma/CPP/7zip/Archive/Common/InStreamWithCRC.cpp b/3rdparty/lzma/CPP/7zip/Archive/Common/InStreamWithCRC.cpp
new file mode 100644
index 00000000000..569a56f3bee
--- /dev/null
+++ b/3rdparty/lzma/CPP/7zip/Archive/Common/InStreamWithCRC.cpp
@@ -0,0 +1,42 @@
+// InStreamWithCRC.cpp
+
+#include "StdAfx.h"
+
+#include "InStreamWithCRC.h"
+
+STDMETHODIMP CSequentialInStreamWithCRC::Read(void *data, UInt32 size, UInt32 *processedSize)
+{
+ UInt32 realProcessedSize;
+ HRESULT result = _stream->Read(data, size, &realProcessedSize);
+ _size += realProcessedSize;
+ if (size > 0 && realProcessedSize == 0)
+ _wasFinished = true;
+ _crc = CrcUpdate(_crc, data, realProcessedSize);
+ if(processedSize != NULL)
+ *processedSize = realProcessedSize;
+ return result;
+}
+
+STDMETHODIMP CInStreamWithCRC::Read(void *data, UInt32 size, UInt32 *processedSize)
+{
+ UInt32 realProcessedSize;
+ HRESULT result = _stream->Read(data, size, &realProcessedSize);
+ /*
+ if (size > 0 && realProcessedSize == 0)
+ _wasFinished = true;
+ */
+ _size += realProcessedSize;
+ _crc = CrcUpdate(_crc, data, realProcessedSize);
+ if(processedSize != NULL)
+ *processedSize = realProcessedSize;
+ return result;
+}
+
+STDMETHODIMP CInStreamWithCRC::Seek(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition)
+{
+ if (seekOrigin != STREAM_SEEK_SET || offset != 0)
+ return E_FAIL;
+ _size = 0;
+ _crc = CRC_INIT_VAL;
+ return _stream->Seek(offset, seekOrigin, newPosition);
+}