From e2fbc414b932ae9fd305c8e9fc315a306a876a09 Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Mon, 24 Oct 2011 16:19:09 +0000
Subject: Lzma filter added.  Now we're really getting somewhere.  Libbu++ now
 supports all major, common compression algorithms.

---
 src/lzma.h | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 src/lzma.h

(limited to 'src/lzma.h')

diff --git a/src/lzma.h b/src/lzma.h
new file mode 100644
index 0000000..21da6e8
--- /dev/null
+++ b/src/lzma.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2007-2011 Xagasoft, All rights reserved.
+ *
+ * This file is part of the libbu++ library and is released under the
+ * terms of the license contained in the file LICENSE.
+ */
+
+#ifndef BU_LZMA_H
+#define BU_LZMA_H
+
+#include <stdint.h>
+
+#include "bu/filter.h"
+
+namespace Bu
+{
+	/**
+	 *
+	 *@ingroup Streams
+	 */
+	class Lzma : public Bu::Filter
+	{
+	public:
+		enum Format
+		{
+			Xz			= 0x01,
+			LzmaAlone	= 0x02,
+		};
+
+		Lzma( Bu::Stream &rNext, int nCompression=6, Format eFmt=Xz );
+		virtual ~Lzma();
+
+		virtual void start();
+		virtual Bu::size stop();
+		virtual Bu::size read( void *pBuf, Bu::size nBytes );
+		virtual Bu::size write( const void *pBuf, Bu::size nBytes );
+
+		virtual bool isOpen();
+		virtual bool isEos();
+
+		Bu::size getCompressedSize();
+
+	private:
+		void lzmaError( int code );
+		void *prState;
+		bool bReading;
+		int nCompression;
+		char *pBuf;
+		uint32_t nBufSize;
+		Bu::size sTotalOut;
+		Format eFmt;
+		bool bEos;
+	};
+}
+
+#endif
-- 
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