From 782c394dd78e31f1d4bca76d75e7cd91cd490f14 Mon Sep 17 00:00:00 2001
From: Greg Frieger
Date: Sat, 14 Mar 2009 08:43:28 +0000
Subject: - LZS Decompressor added - Some code clean-up

svn-id: r39385
---
 engines/sci/scicore/decompressor.h | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'engines/sci/scicore/decompressor.h')

diff --git a/engines/sci/scicore/decompressor.h b/engines/sci/scicore/decompressor.h
index 5d54212a95..c471b41cec 100644
--- a/engines/sci/scicore/decompressor.h
+++ b/engines/sci/scicore/decompressor.h
@@ -77,12 +77,17 @@ protected:
 	byte getByteLSB();
 
 	void fetchBitsMSB();
-	void fetchBitsLSB();
+	void fetchBitsLSB(); 
 
 	//! put byte to _dest stream
 	/** @param b - byte to put
 	  */
 	virtual void putByte(byte b);
+	// Returns true if all expected data has been unpacked to _dest 
+	// and there is no more data in _src
+	bool isFinished() {
+		return (_dwWrote == _szUnpacked) && (_dwRead >= _szPacked);
+	}
 
 	uint32 _dwBits; // bits buffer
 	byte _nBits; // # of bits in buffer
@@ -165,7 +170,12 @@ protected:
 class DecompressorLZS : public Decompressor {
 public:
 	int unpack(Common::ReadStream *src, byte *dest, uint32 nPacked, uint32 nUnpacked);
+protected:
+	int unpackLZS();
+	uint16 getCompLen();
+	void copyComp(int offs, int clen);
 };
+
 } // End of namespace Sci
 
 #endif // SCI_SCICORE_DECOMPRESSOR_H
-- 
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