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1 files changed, 63 insertions, 0 deletions

diff --git a/indra/llimage/llimagejpeg.h b/indra/llimage/llimagejpeg.h
new file mode 100644
index 0000000000..5684e3720f
--- /dev/null
+++ b/indra/llimage/llimagejpeg.h
@@ -0,0 +1,63 @@
+/** 
+ * @file llimagejpeg.h
+ * @brief This class compresses and decompresses JPEG files
+ *
+ * Copyright (c) 2002-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#ifndef LL_LLIMAGEJPEG_H
+#define LL_LLIMAGEJPEG_H
+
+#include <setjmp.h>
+
+#include "llimage.h"
+
+extern "C" {
+#include "jpeglib/jinclude.h"
+#include "jpeglib/jpeglib.h"
+#include "jpeglib/jerror.h"
+}
+
+class LLImageJPEG : public LLImageFormatted
+{
+protected:
+	virtual ~LLImageJPEG();
+	
+public:
+	LLImageJPEG();
+
+	/*virtual*/ BOOL updateData();
+	/*virtual*/ BOOL decode(LLImageRaw* raw_image, F32 time=0.0);
+	/*virtual*/ BOOL encode(const LLImageRaw* raw_image, F32 time=0.0);
+
+	void			setEncodeQuality( S32 q )	{ mEncodeQuality = q; } // on a scale from 1 to 100
+	S32				getEncodeQuality()			{ return mEncodeQuality; }
+
+	// Callbacks registered with jpeglib
+	static void		encodeInitDestination ( j_compress_ptr cinfo );
+	static boolean	encodeEmptyOutputBuffer(j_compress_ptr cinfo);
+	static void		encodeTermDestination(j_compress_ptr cinfo);
+
+	static void		decodeInitSource(j_decompress_ptr cinfo);
+	static boolean	decodeFillInputBuffer(j_decompress_ptr cinfo);
+	static void		decodeSkipInputData(j_decompress_ptr cinfo, long num_bytes);
+	static void		decodeTermSource(j_decompress_ptr cinfo);
+
+
+	static void		errorExit(j_common_ptr cinfo);
+	static void		errorEmitMessage(j_common_ptr cinfo, int msg_level);
+	static void		errorOutputMessage(j_common_ptr cinfo);
+
+	static BOOL		decompress(LLImageJPEG* imagep);
+
+protected:
+	U8*				mOutputBuffer;		// temp buffer used during encoding
+	S32				mOutputBufferSize;	// bytes in mOuputBuffer
+
+	S32				mEncodeQuality;		// on a scale from 1 to 100
+
+	jmp_buf			mSetjmpBuffer;		// To allow the library to abort.
+};
+
+#endif  // LL_LLIMAGEJPEG_H