From 469bbcf0701e1eb8a6670c23145b0da87357e178 Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Sun, 25 Mar 2012 20:00:08 +0000
Subject: Code is all reorganized.  We're about ready to release.  I should
 write up a little explenation of the arrangement.

---
 src/stable/deflate.h | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 src/stable/deflate.h

(limited to 'src/stable/deflate.h')

diff --git a/src/stable/deflate.h b/src/stable/deflate.h
new file mode 100644
index 0000000..f835cfc
--- /dev/null
+++ b/src/stable/deflate.h
@@ -0,0 +1,66 @@
+/*
+ * 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_DEFLATE_H
+#define BU_DEFLATE_H
+
+#include <stdint.h>
+
+#include "bu/filter.h"
+
+namespace Bu
+{
+	/**
+	 * Provides Deflate (LZ77) support via zlib.  This provides zlib, raw, and
+	 * gzip stream types.  By default it will autodetect the input type and
+	 * encode into a raw deflate stream.
+	 *
+	 *@ingroup Streams
+	 *@ingroup Compression
+	 */
+	class Deflate : public Bu::Filter
+	{
+	public:
+		enum Format
+		{
+			Raw			= 0x01,
+			Zlib		= 0x02,
+			Gzip		= 0x03,
+			AutoDetect	= 0x04,
+
+			AutoRaw		= 0x04|0x01,
+			AutoZlib	= 0x04|0x02,
+			AutoGzip	= 0x04|0x03
+		};
+
+		Deflate( Bu::Stream &rNext, int nCompression=-1, Format eFmt=AutoZlib );
+		virtual ~Deflate();
+
+		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 zError( 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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