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replay/compression.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+//=======================================================================================//
+
+#ifndef COMPRESSION_H
+#define COMPRESSION_H
+
+//----------------------------------------------------------------------------------------
+
+#include "platform.h"
+
+//----------------------------------------------------------------------------------------
+
+class ICompressor
+{
+public:
+	virtual ~ICompressor() {}
+	virtual bool	Compress( char *pDest, unsigned int *pDestLen, const char *pSource, unsigned int nSourceLen ) = 0;
+	virtual bool	Decompress( char *pDest, unsigned int *pDestLen, const char *pSource, unsigned int nSourceLen ) = 0;
+
+	virtual int		GetEstimatedCompressionSize( unsigned int nSourceLen ) = 0;
+};
+
+//----------------------------------------------------------------------------------------
+
+enum CompressorType_t
+{
+	COMPRESSORTYPE_INVALID = -1,
+
+	COMPRESSORTYPE_LZSS,
+	COMPRESSORTYPE_BZ2,
+
+	NUM_COMPRESSOR_TYPES
+};
+
+//----------------------------------------------------------------------------------------
+
+extern const char *g_pCompressorTypes[ NUM_COMPRESSOR_TYPES ];
+
+//----------------------------------------------------------------------------------------
+
+ICompressor *CreateCompressor( CompressorType_t nType );
+const char *GetCompressorNameSafe( CompressorType_t nType );
+
+//----------------------------------------------------------------------------------------
+
+#endif // COMPRESSION_H