1 files changed, 47 insertions, 0 deletions
diff --git a/replay/compression.h b/replay/compression.h
new file mode 100644
index 0000000..4807f23
--- /dev/null
+++ b/replay/compression.h
@@ -0,0 +1,47 @@
+//========= 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