diff --git a/common/rfb/TightEncoder.h b/common/rfb/TightEncoder.h
index 95c2b98..10ca761 100644
--- a/common/rfb/TightEncoder.h
+++ b/common/rfb/TightEncoder.h
@@ -100,9 +100,9 @@
     int paletteInsert(rdr::U32 rgb, int numPixels, int bpp);
     void paletteReset(void);
 
-    void fastFillPalette8(rdr::U8 *data, int stride, const Rect &r);
-    void fastFillPalette16(rdr::U16 *data, int stride, const Rect &r);
-    void fastFillPalette32(rdr::U32 *data, int stride, const Rect &r);
+    void fastFillPalette8(const rdr::U8 *buffer, int stride, const Rect &r);
+    void fastFillPalette16(const rdr::U8 *buffer, int stride, const Rect &r);
+    void fastFillPalette32(const rdr::U8 *buffer, int stride, const Rect &r);
 
     void fillPalette8(rdr::U8 *data, int count);
     void fillPalette16(rdr::U16 *data, int count);
@@ -135,10 +135,7 @@
     void encodeIndexedRect16(rdr::U16 *buf, const Rect& r, rdr::OutStream *os);
     void encodeIndexedRect32(rdr::U32 *buf, const Rect& r, rdr::OutStream *os);
 
-    void encodeJpegRect16(rdr::U16 *buf, int stride, const Rect& r,
-                          rdr::OutStream *os);
-    void encodeJpegRect32(rdr::U32 *buf, int stride, const Rect& r,
-                          rdr::OutStream *os);
+    void encodeJpegRect(const Rect& r, rdr::OutStream *os);
 
     SMsgWriter* writer;
     rdr::MemOutStream mos;