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diff --git a/indra/llimage/llimagej2c.h b/indra/llimage/llimagej2c.h
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+++ b/indra/llimage/llimagej2c.h
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+/** 
+ * @file llimagej2c.h
+ * @brief Image implmenation for jpeg2000.
+ *
+ * Copyright (c) 2001-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#ifndef LL_LLIMAGEJ2C_H
+#define LL_LLIMAGEJ2C_H
+
+#include "llimage.h"
+#include "llassettype.h"
+
+class LLImageJ2CImpl;
+
+class LLImageJ2C : public LLImageFormatted
+{
+protected:
+	virtual ~LLImageJ2C();
+
+public:
+	LLImageJ2C();
+
+	// Base class overrides
+	/*virtual*/ BOOL updateData();
+	/*virtual*/ BOOL decode(LLImageRaw *raw_imagep, F32 decode_time=0.0);
+	/*virtual*/ BOOL decode(LLImageRaw *raw_imagep, F32 decode_time, S32 first_channel, S32 max_channel_count);
+	/*virtual*/ BOOL encode(const LLImageRaw *raw_imagep, F32 encode_time=0.0);
+	/*virtual*/ S32 calcHeaderSize();
+	/*virtual*/ S32 calcDataSize(S32 discard_level = 0);
+	/*virtual*/ S32 calcDiscardLevelBytes(S32 bytes);
+	/*virtual*/ S8  getRawDiscardLevel();
+	
+	// Encode with comment text 
+	BOOL encode(const LLImageRaw *raw_imagep, const char* comment_text, F32 encode_time=0.0);
+
+	BOOL validate(U8 *data, U32 file_size);
+	BOOL loadAndValidate(const LLString &filename);
+
+	// Encode accessors
+	void setReversible(const BOOL reversible); // Use non-lossy?
+	void setRate(F32 rate);
+	void setMaxBytes(S32 max_bytes);
+	S32 getMaxBytes() const { return mMaxBytes; }
+
+	static S32 calcHeaderSizeJ2C();
+	static S32 calcDataSizeJ2C(S32 w, S32 h, S32 comp, S32 discard_level, F32 rate = 0.f);
+	
+protected:
+	friend class LLImageJ2CImpl;
+	friend class LLImageJ2COJ;
+	friend class LLImageJ2CKDU;
+	void setDecodingDone(BOOL complete = TRUE);
+	void updateRawDiscardLevel();
+
+	S32 mMaxBytes; // Maximum number of bytes of data to use...
+	S8  mRawDiscardLevel;
+	F32 mRate;
+	LLImageJ2CImpl *mImpl;
+};
+
+// Derive from this class to implement JPEG2000 decoding
+class LLImageJ2CImpl
+{
+protected:
+	virtual ~LLImageJ2CImpl();
+	virtual BOOL getMetadata(LLImageJ2C &base) = 0;
+	virtual BOOL decodeImpl(LLImageJ2C &base, LLImageRaw &raw_image, F32 decode_time, S32 first_channel, S32 max_channel_count) = 0;
+	virtual BOOL encodeImpl(LLImageJ2C &base, const LLImageRaw &raw_image, const char* comment_text, F32 encode_time=0.0) = 0;
+
+	friend class LLImageJ2C;
+};
+
+#define LINDEN_J2C_COMMENT_PREFIX "LL_"
+
+#endif