From: Pierre Ossman <ossman@cendio.se>
Date: Mon, 20 Jan 2014 14:05:21 +0000 (+0100)
Subject: Remove full support for colour maps
X-Git-Tag: v1.3.90~45^2~8
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=b6b4dc6487690e891ec2487c6cf765d36821fe3a;p=tigervnc.git

Remove full support for colour maps

Gets rid of a loooot of code and complexity.

Colour map clients are still supported through an
automatically generated map, but we lose the ability to
develop a client or server that uses colour maps
internally.
---

diff --git a/common/rfb/ColourCube.h b/common/rfb/ColourCube.h
deleted file mode 100644
index b83cbba8..00000000
--- a/common/rfb/ColourCube.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
- * 
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- * 
- * This software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
- * USA.
- */
-//
-// ColourCube - structure to represent a colour cube.  The colour cube consists
-// of its dimensions (nRed x nGreen x nBlue) and a table mapping an (r,g,b)
-// triple to a pixel value.
-//
-// A colour cube is used in two cases.  The first is internally in a viewer
-// when it cannot use a trueColour format, nor can it have exclusive access to
-// a writable colour map.  This is most notably the case for an X viewer
-// wishing to use a PseudoColor X server's default colormap.
-//
-// The second use is on the server side when a client has asked for a colour
-// map and the server is trueColour.  Instead of setting an uneven trueColour
-// format like bgr233, it can set the client's colour map up with a 6x6x6
-// colour cube.  For this use the colour cube table has a null mapping, which
-// makes it easy to perform the reverse lookup operation from pixel value to
-// r,g,b values.
-
-#ifndef __RFB_COLOURCUBE_H__
-#define __RFB_COLOURCUBE_H__
-
-#include <rfb/Pixel.h>
-#include <rfb/ColourMap.h>
-
-namespace rfb {
-
-  class ColourCube : public ColourMap {
-  public:
-    ColourCube(int nr, int ng, int nb, Pixel* table_=0)
-      : nRed(nr), nGreen(ng), nBlue(nb), table(table_), deleteTable(false)
-    {
-      if (!table) {
-        table = new Pixel[size()];
-        deleteTable = true;
-        // set a null mapping by default
-        for (int i = 0; i < size(); i++)
-          table[i] = i;
-      }
-    }
-
-    ColourCube() : deleteTable(false) {}
-
-    virtual ~ColourCube() {
-      if (deleteTable) delete [] table;
-    }
-
-    void set(int r, int g, int b, Pixel p) {
-      table[(r * nGreen + g) * nBlue + b] = p;
-    }
-
-    Pixel lookup(int r, int g, int b) const {
-      return table[(r * nGreen + g) * nBlue + b];
-    }
-
-    int size()      const { return nRed*nGreen*nBlue; }
-    int redMult()   const { return nGreen*nBlue; }
-    int greenMult() const { return nBlue; }
-    int blueMult()  const { return 1; }
-
-    // ColourMap lookup() method.  Note that this only works when the table has
-    // the default null mapping.
-    virtual void lookup(int i, int* r, int* g, int* b) {
-      if (i >= size()) return;
-      *b = i % nBlue;
-      i /= nBlue;
-      *g = i % nGreen;
-      *r = i / nGreen;
-      *r = (*r * 65535 + (nRed-1)   / 2) / (nRed-1);
-      *g = (*g * 65535 + (nGreen-1) / 2) / (nGreen-1);
-      *b = (*b * 65535 + (nBlue-1)  / 2) / (nBlue-1);
-    }
-
-    int nRed;
-    int nGreen;
-    int nBlue;
-    Pixel* table;
-    bool deleteTable;
-  };
-}
-#endif
diff --git a/common/rfb/ColourMap.h b/common/rfb/ColourMap.h
deleted file mode 100644
index c024adce..00000000
--- a/common/rfb/ColourMap.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
- * Copyright 2011 Pierre Ossman <ossman@cendio.se> for Cendio AB
- * 
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- * 
- * This software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
- * USA.
- */
-#ifndef __RFB_COLOURMAP_H__
-#define __RFB_COLOURMAP_H__
-namespace rfb {
-  struct Colour {
-    Colour() : r(0), g(0), b(0) {}
-    Colour(int r_, int g_, int b_) : r(r_), g(g_), b(b_) {}
-    int r, g, b;
-    bool operator==(const Colour& c) const {return c.r == r && c.g == g && c.b == b;}
-    bool operator!=(const Colour& c) const {return !(c == *this);}
-  };
-
-  class ColourMap {
-  public:
-    virtual void lookup(int index, int* r, int* g, int* b)=0;
-    virtual ~ColourMap() {}
-  };
-
-  class SimpleColourMap : public ColourMap {
-  public:
-    SimpleColourMap(int size = 256) { table = new Colour[size]; };
-    virtual ~SimpleColourMap() { delete [] table; };
-
-    void lookup(int index, int* r, int* g, int* b)
-    { *r = table[index].r; *g = table[index].g; *b = table[index].b; };
-
-    void set(int index, int r, int g, int b)
-    { table[index].r = r; table[index].g = g; table[index].b = b; };
-
-  protected:
-    Colour *table;
-  };
-}
-#endif
diff --git a/common/rfb/PixelBuffer.cxx b/common/rfb/PixelBuffer.cxx
index 9d151b97..3ed3a924 100644
--- a/common/rfb/PixelBuffer.cxx
+++ b/common/rfb/PixelBuffer.cxx
@@ -33,16 +33,15 @@ static LogWriter vlog("PixelBuffer");
 
 // -=- Generic pixel buffer class
 
-PixelBuffer::PixelBuffer(const PixelFormat& pf, int w, int h, ColourMap* cm)
-  : format(pf), width_(w), height_(h), colourmap(cm) {}
-PixelBuffer::PixelBuffer() : width_(0), height_(0), colourmap(0) {}
+PixelBuffer::PixelBuffer(const PixelFormat& pf, int w, int h)
+  : format(pf), width_(w), height_(h) {}
+PixelBuffer::PixelBuffer() : width_(0), height_(0) {}
 
 PixelBuffer::~PixelBuffer() {}
 
 
 void PixelBuffer::setPF(const PixelFormat &pf) {format = pf;}
 const PixelFormat& PixelBuffer::getPF() const {return format;}
-ColourMap* PixelBuffer::getColourMap() const {return colourmap;}
 
 
 void
@@ -117,8 +116,8 @@ static void fillRect32(U8 *buf, int stride, const Rect& r, Pixel pix)
 
 
 FullFramePixelBuffer::FullFramePixelBuffer(const PixelFormat& pf, int w, int h,
-                                           rdr::U8* data_, ColourMap* cm)
-  : PixelBuffer(pf, w, h, cm), data(data_)
+                                           rdr::U8* data_)
+  : PixelBuffer(pf, w, h), data(data_)
 {
   // Called again to configure the fill function
   setPF(pf);
@@ -314,20 +313,19 @@ void FullFramePixelBuffer::copyRect(const Rect &rect, const Point &move_by_delta
 // Automatically allocates enough space for the specified format & area
 
 ManagedPixelBuffer::ManagedPixelBuffer()
-  : datasize(0), own_colourmap(false)
+  : datasize(0)
 {
   checkDataSize();
 };
 
 ManagedPixelBuffer::ManagedPixelBuffer(const PixelFormat& pf, int w, int h)
-  : FullFramePixelBuffer(pf, w, h, 0, 0), datasize(0), own_colourmap(false)
+  : FullFramePixelBuffer(pf, w, h, 0), datasize(0)
 {
   checkDataSize();
 };
 
 ManagedPixelBuffer::~ManagedPixelBuffer() {
   if (data) delete [] data;
-  if (colourmap && own_colourmap) delete colourmap;
 };
 
 
@@ -341,13 +339,6 @@ ManagedPixelBuffer::setSize(int w, int h) {
 };
 
 
-void
-ManagedPixelBuffer::setColourMap(ColourMap* cm, bool own_cm) {
-  if (colourmap && own_colourmap) delete colourmap;
-  colourmap = cm;
-  own_colourmap = own_cm;
-}
-
 inline void
 ManagedPixelBuffer::checkDataSize() {
   unsigned long new_datasize = width_ * height_ * (format.bpp/8);
diff --git a/common/rfb/PixelBuffer.h b/common/rfb/PixelBuffer.h
index 5c4f9666..e526cc3a 100644
--- a/common/rfb/PixelBuffer.h
+++ b/common/rfb/PixelBuffer.h
@@ -26,7 +26,6 @@
 
 #include <rfb/ImageGetter.h>
 #include <rfb/PixelFormat.h>
-#include <rfb/ColourMap.h>
 #include <rfb/Rect.h>
 #include <rfb/Pixel.h>
 
@@ -36,7 +35,7 @@ namespace rfb {
 
   class PixelBuffer : public ImageGetter {
   public:
-    PixelBuffer(const PixelFormat& pf, int width, int height, ColourMap* cm);
+    PixelBuffer(const PixelFormat& pf, int width, int height);
     virtual ~PixelBuffer();
 
     ///////////////////////////////////////////////
@@ -49,7 +48,6 @@ namespace rfb {
     virtual void setPF(const PixelFormat &pf);
   public:
     virtual const PixelFormat &getPF() const;
-    virtual ColourMap* getColourMap() const;
 
     // Get width, height and number of pixels
     int width()  const { return width_; }
@@ -91,7 +89,6 @@ namespace rfb {
     PixelBuffer();
     PixelFormat format;
     int width_, height_;
-    ColourMap* colourmap;
   };
 
   // FullFramePixelBuffer
@@ -99,7 +96,7 @@ namespace rfb {
   class FullFramePixelBuffer : public PixelBuffer {
   public:
     FullFramePixelBuffer(const PixelFormat& pf, int width, int height,
-                         rdr::U8* data_, ColourMap* cm);
+                         rdr::U8* data_);
     virtual ~FullFramePixelBuffer();
 
   protected:
@@ -160,15 +157,11 @@ namespace rfb {
     virtual void setPF(const PixelFormat &pf);
     virtual void setSize(int w, int h);
 
-    // Assign a colour map to the buffer
-    virtual void setColourMap(ColourMap* cm, bool own_cm);
-
     // Return the total number of bytes of pixel data in the buffer
     int dataLen() const { return width_ * height_ * (format.bpp/8); }
 
   protected:
     unsigned long datasize;
-    bool own_colourmap;
     void checkDataSize();
   };
 
diff --git a/common/rfb/PixelFormat.cxx b/common/rfb/PixelFormat.cxx
index b11f8836..9e762d9d 100644
--- a/common/rfb/PixelFormat.cxx
+++ b/common/rfb/PixelFormat.cxx
@@ -53,16 +53,51 @@ PixelFormat::PixelFormat()
 
 bool PixelFormat::equal(const PixelFormat& other) const
 {
-  return (bpp == other.bpp &&
-          depth == other.depth &&
-          (bigEndian == other.bigEndian || bpp == 8) &&
-          trueColour == other.trueColour &&
-          (!trueColour || (redMax == other.redMax &&
-                           greenMax == other.greenMax &&
-                           blueMax == other.blueMax &&
-                           redShift == other.redShift &&
-                           greenShift == other.greenShift &&
-                           blueShift == other.blueShift)));
+  if (bpp != other.bpp || depth != other.depth)
+    return false;
+
+  if (redMax != other.redMax)
+    return false;
+  if (greenMax != other.greenMax)
+    return false;
+  if (blueMax != other.blueMax)
+    return false;
+
+  // Endianness requires more care to determine compatibility
+  if (bigEndian == other.bigEndian || bpp == 8) {
+    if (redShift != other.redShift)
+      return false;
+    if (greenShift != other.greenShift)
+      return false;
+    if (blueShift != other.blueShift)
+      return false;
+  } else {
+    // Has to be the same byte for each channel
+    if (redShift/8 != (3 - other.redShift/8))
+      return false;
+    if (greenShift/8 != (3 - other.greenShift/8))
+      return false;
+    if (blueShift/8 != (3 - other.blueShift/8))
+      return false;
+
+    // And the same bit offset within the byte
+    if (redShift%8 != other.redShift%8)
+      return false;
+    if (greenShift%8 != other.greenShift%8)
+      return false;
+    if (blueShift%8 != other.blueShift%8)
+      return false;
+
+    // And not cross a byte boundary
+    if (redShift/8 != (redShift + redBits - 1)/8)
+      return false;
+    if (greenShift/8 != (greenShift + greenBits - 1)/8)
+      return false;
+    if (blueShift/8 != (blueShift + blueBits - 1)/8)
+      return false;
+  }
+
+  return true;
 }
 
 void PixelFormat::read(rdr::InStream* is)
@@ -79,6 +114,18 @@ void PixelFormat::read(rdr::InStream* is)
   blueShift = is->readU8();
   is->skip(3);
 
+  // We have no real support for colour maps. If the client
+  // wants one, then we force a 8-bit true colour format and
+  // pretend it's a colour map.
+  if (!trueColour) {
+    redMax = 7;
+    greenMax = 7;
+    blueMax = 3;
+    redShift = 0;
+    greenShift = 3;
+    blueShift = 6;
+  }
+
   if (!isSane())
     throw Exception("invalid pixel format");
 
@@ -132,14 +179,13 @@ bool PixelFormat::isLittleEndian(void) const
 }
 
 
-void PixelFormat::bufferFromRGB(rdr::U8 *dst, const rdr::U8* src,
-                                int pixels, ColourMap* cm) const
+void PixelFormat::bufferFromRGB(rdr::U8 *dst, const rdr::U8* src, int pixels) const
 {
-  bufferFromRGB(dst, src, pixels, pixels, 1, cm);
+  bufferFromRGB(dst, src, pixels, pixels, 1);
 }
 
 void PixelFormat::bufferFromRGB(rdr::U8 *dst, const rdr::U8* src,
-                                int w, int stride, int h, ColourMap* cm) const
+                                int w, int stride, int h) const
 {
   if (is888()) {
     // Optimised common case
@@ -188,7 +234,7 @@ void PixelFormat::bufferFromRGB(rdr::U8 *dst, const rdr::U8* src,
         g = *(src++);
         b = *(src++);
 
-        p = pixelFromRGB(r, g, b, cm);
+        p = pixelFromRGB(r, g, b);
 
         bufferFromPixel(dst, p);
         dst += bpp/8;
@@ -199,26 +245,14 @@ void PixelFormat::bufferFromRGB(rdr::U8 *dst, const rdr::U8* src,
 }
 
 
-void PixelFormat::rgbFromPixel(Pixel p, ColourMap* cm, Colour* rgb) const
-{
-  rdr::U16 r, g, b;
-
-  rgbFromPixel(p, cm, &r, &g, &b);
-
-  rgb->r = r;
-  rgb->g = g;
-  rgb->b = b;
-}
-
-
-void PixelFormat::rgbFromBuffer(rdr::U8* dst, const rdr::U8* src, int pixels, ColourMap* cm) const
+void PixelFormat::rgbFromBuffer(rdr::U8* dst, const rdr::U8* src, int pixels) const
 {
-  rgbFromBuffer(dst, src, pixels, pixels, 1, cm);
+  rgbFromBuffer(dst, src, pixels, pixels, 1);
 }
 
 
 void PixelFormat::rgbFromBuffer(rdr::U8* dst, const rdr::U8* src,
-                                int w, int stride, int h, ColourMap* cm) const
+                                int w, int stride, int h) const
 {
   if (is888()) {
     // Optimised common case
@@ -260,7 +294,7 @@ void PixelFormat::rgbFromBuffer(rdr::U8* dst, const rdr::U8* src,
 
         p = pixelFromBuffer(src);
 
-        rgbFromPixel(p, cm, &r, &g, &b);
+        rgbFromPixel(p, &r, &g, &b);
 
         *(dst++) = r;
         *(dst++) = g;
@@ -449,36 +483,34 @@ bool PixelFormat::isSane(void)
   if (!trueColour && (depth != 8))
     return false;
 
-  if (trueColour) {
-    if ((redMax & (redMax + 1)) != 0)
-      return false;
-    if ((greenMax & (greenMax + 1)) != 0)
-      return false;
-    if ((blueMax & (blueMax + 1)) != 0)
-      return false;
+  if ((redMax & (redMax + 1)) != 0)
+    return false;
+  if ((greenMax & (greenMax + 1)) != 0)
+    return false;
+  if ((blueMax & (blueMax + 1)) != 0)
+    return false;
 
-    /*
-     * We don't allow individual channels > 8 bits in order to keep our
-     * conversions simple.
-     */
-    if (redMax >= (1 << 8))
-      return false;
-    if (greenMax >= (1 << 8))
-      return false;
-    if (blueMax >= (1 << 8))
-      return false;
+  /*
+   * We don't allow individual channels > 8 bits in order to keep our
+   * conversions simple.
+   */
+  if (redMax >= (1 << 8))
+    return false;
+  if (greenMax >= (1 << 8))
+    return false;
+  if (blueMax >= (1 << 8))
+    return false;
 
-    totalBits = bits(redMax) + bits(greenMax) + bits(blueMax);
-    if (totalBits > bpp)
-      return false;
+  totalBits = bits(redMax) + bits(greenMax) + bits(blueMax);
+  if (totalBits > bpp)
+    return false;
 
-    if (((redMax << redShift) & (greenMax << greenShift)) != 0)
-      return false;
-    if (((redMax << redShift) & (blueMax << blueShift)) != 0)
-      return false;
-    if (((greenMax << greenShift) & (blueMax << blueShift)) != 0)
-      return false;
-  }
+  if (((redMax << redShift) & (greenMax << greenShift)) != 0)
+    return false;
+  if (((redMax << redShift) & (blueMax << blueShift)) != 0)
+    return false;
+  if (((greenMax << greenShift) & (blueMax << blueShift)) != 0)
+    return false;
 
   return true;
 }
diff --git a/common/rfb/PixelFormat.h b/common/rfb/PixelFormat.h
index a8408ddd..c3db8783 100644
--- a/common/rfb/PixelFormat.h
+++ b/common/rfb/PixelFormat.h
@@ -35,7 +35,6 @@
 #define __RFB_PIXELFORMAT_H__
 
 #include <rfb/Pixel.h>
-#include <rfb/ColourMap.h>
 
 namespace rdr { class InStream; class OutStream; }
 
@@ -44,9 +43,12 @@ namespace rfb {
   class PixelFormat {
   public:
     PixelFormat(int b, int d, bool e, bool t,
-                int rm=0, int gm=0, int bm=0, int rs=0, int gs=0, int bs=0);
+                int rm, int gm, int bm, int rs, int gs, int bs);
     PixelFormat();
 
+    // Checks if the formats have identical buffer representation.
+    // They might still have different pixel representation, endianness
+    // or true colour state.
     bool equal(const PixelFormat& other) const;
 
     void read(rdr::InStream* is);
@@ -59,20 +61,19 @@ namespace rfb {
     inline Pixel pixelFromBuffer(const rdr::U8* buffer) const;
     inline void bufferFromPixel(rdr::U8* buffer, Pixel pixel) const;
 
-    inline Pixel pixelFromRGB(rdr::U16 red, rdr::U16 green, rdr::U16 blue, ColourMap* cm=0) const;
-    inline Pixel pixelFromRGB(rdr::U8 red, rdr::U8 green, rdr::U8 blue, ColourMap* cm=0) const;
+    inline Pixel pixelFromRGB(rdr::U16 red, rdr::U16 green, rdr::U16 blue) const;
+    inline Pixel pixelFromRGB(rdr::U8 red, rdr::U8 green, rdr::U8 blue) const;
 
-    void bufferFromRGB(rdr::U8 *dst, const rdr::U8* src, int pixels, ColourMap* cm=0) const;
-    void bufferFromRGB(rdr::U8 *dst, const rdr::U8* src, int w, int stride,
-                       int h, ColourMap* cm=0) const;
+    void bufferFromRGB(rdr::U8 *dst, const rdr::U8* src, int pixels) const;
+    void bufferFromRGB(rdr::U8 *dst, const rdr::U8* src,
+                       int w, int stride, int h) const;
 
-    void rgbFromPixel(Pixel pix, ColourMap* cm, Colour* rgb) const;
-    inline void rgbFromPixel(Pixel pix, ColourMap* cm, rdr::U16 *r, rdr::U16 *g, rdr::U16 *b) const;
-    inline void rgbFromPixel(Pixel pix, ColourMap* cm, rdr::U8 *r, rdr::U8 *g, rdr::U8 *b) const;
+    inline void rgbFromPixel(Pixel pix, rdr::U16 *r, rdr::U16 *g, rdr::U16 *b) const;
+    inline void rgbFromPixel(Pixel pix, rdr::U8 *r, rdr::U8 *g, rdr::U8 *b) const;
 
-    void rgbFromBuffer(rdr::U8* dst, const rdr::U8* src, int pixels, ColourMap* cm=0) const;
-    void rgbFromBuffer(rdr::U8* dst, const rdr::U8* src, int w, int stride,
-                       int h, ColourMap* cm=0) const;
+    void rgbFromBuffer(rdr::U8* dst, const rdr::U8* src, int pixels) const;
+    void rgbFromBuffer(rdr::U8* dst, const rdr::U8* src,
+                       int w, int stride, int h) const;
 
     void print(char* str, int len) const;
     bool parse(const char* str);
@@ -84,6 +85,9 @@ namespace rfb {
   public:
     int bpp;
     int depth;
+
+    // This only tracks if the client thinks it is in colour map mode.
+    // In practice we are always in true colour mode.
     bool trueColour;
 
   // FIXME: These should be protected, but we need to fix TransImageGetter first.
diff --git a/common/rfb/PixelFormat.inl b/common/rfb/PixelFormat.inl
index 547fae5d..4bc4a709 100644
--- a/common/rfb/PixelFormat.inl
+++ b/common/rfb/PixelFormat.inl
@@ -75,131 +75,81 @@ inline void PixelFormat::bufferFromPixel(rdr::U8* buffer, Pixel p) const
 }
 
 
-inline Pixel PixelFormat::pixelFromRGB(rdr::U16 red, rdr::U16 green, rdr::U16 blue, ColourMap* cm) const
+inline Pixel PixelFormat::pixelFromRGB(rdr::U16 red, rdr::U16 green, rdr::U16 blue) const
 {
-  if (trueColour) {
-    Pixel p;
-
-    /* We don't need to mask since we shift out unwanted bits */
-    p = ((Pixel)red >> (16 - redBits)) << redShift;
-    p |= ((Pixel)green >> (16 - greenBits)) << greenShift;
-    p |= ((Pixel)blue >> (16 - blueBits)) << blueShift;
-  } else if (cm) {
-    // Try to find the closest pixel by Cartesian distance
-    int colours = 1 << depth;
-    int diff = 256 * 256 * 4;
-    int col = 0;
-    for (int i=0; i<colours; i++) {
-      int r, g, b;
-      cm->lookup(i, &r, &g, &b);
-      int rd = (r-red) >> 8;
-      int gd = (g-green) >> 8;
-      int bd = (b-blue) >> 8;
-      int d = rd*rd + gd*gd + bd*bd;
-      if (d < diff) {
-        col = i;
-        diff = d;
-      }
-    }
-    return col;
-  } else {
-    // XXX just return 0 for colour map?
-    return 0;
-  }
+  Pixel p;
+
+  /* We don't need to mask since we shift out unwanted bits */
+  p = ((Pixel)red >> (16 - redBits)) << redShift;
+  p |= ((Pixel)green >> (16 - greenBits)) << greenShift;
+  p |= ((Pixel)blue >> (16 - blueBits)) << blueShift;
+
+  return p;
 }
 
 
-inline Pixel PixelFormat::pixelFromRGB(rdr::U8 red, rdr::U8 green, rdr::U8 blue, ColourMap* cm) const
+inline Pixel PixelFormat::pixelFromRGB(rdr::U8 red, rdr::U8 green, rdr::U8 blue) const
 {
-  if (trueColour) {
-    Pixel p;
+  Pixel p;
 
-    p = ((Pixel)red >> (8 - redBits)) << redShift;
-    p |= ((Pixel)green >> (8 - greenBits)) << greenShift;
-    p |= ((Pixel)blue >> (8 - blueBits)) << blueShift;
+  p = ((Pixel)red >> (8 - redBits)) << redShift;
+  p |= ((Pixel)green >> (8 - greenBits)) << greenShift;
+  p |= ((Pixel)blue >> (8 - blueBits)) << blueShift;
 
-    return p;
-  } else {
-    return pixelFromRGB((rdr::U16)(red << 8 | red),
-                        (rdr::U16)(green << 8 | green),
-                        (rdr::U16)(blue << 8 | blue), cm);
-  }
+  return p;
 }
 
 
-inline void PixelFormat::rgbFromPixel(Pixel p, ColourMap* cm, rdr::U16 *r, rdr::U16 *g, rdr::U16 *b) const
+inline void PixelFormat::rgbFromPixel(Pixel p, rdr::U16 *r, rdr::U16 *g, rdr::U16 *b) const
 {
-  if (trueColour) {
-    int mb, rb, gb, bb;
-
-    /* Bit replication is much cheaper than multiplication and division */
-
-    mb = minBits;
-    rb = redBits;
-    gb = greenBits;
-    bb = blueBits;
-
-    *r = (p >> redShift) << (16 - rb);
-    *g = (p >> greenShift) << (16 - gb);
-    *b = (p >> blueShift) << (16 - bb);
-
-    while (mb < 16) {
-      *r = *r | (*r >> rb);
-      *g = *g | (*g >> gb);
-      *b = *b | (*b >> bb);
-      mb <<= 1;
-      rb <<= 1;
-      gb <<= 1;
-      bb <<= 1;
-    }
-  } else if (cm) {
-    int ir, ig, ib;
-    cm->lookup(p, &ir, &ig, &ib);
-    *r = ir;
-    *g = ig;
-    *b = ib;
-  } else {
-    // XXX just return 0 for colour map?
-    *r = 0;
-    *g = 0;
-    *b = 0;
+  int mb, rb, gb, bb;
+
+  /* Bit replication is much cheaper than multiplication and division */
+
+  mb = minBits;
+  rb = redBits;
+  gb = greenBits;
+  bb = blueBits;
+
+  *r = (p >> redShift) << (16 - rb);
+  *g = (p >> greenShift) << (16 - gb);
+  *b = (p >> blueShift) << (16 - bb);
+
+  while (mb < 16) {
+    *r = *r | (*r >> rb);
+    *g = *g | (*g >> gb);
+    *b = *b | (*b >> bb);
+    mb <<= 1;
+    rb <<= 1;
+    gb <<= 1;
+    bb <<= 1;
   }
 }
 
 
-inline void PixelFormat::rgbFromPixel(Pixel p, ColourMap* cm, rdr::U8 *r, rdr::U8 *g, rdr::U8 *b) const
+inline void PixelFormat::rgbFromPixel(Pixel p, rdr::U8 *r, rdr::U8 *g, rdr::U8 *b) const
 {
-  if (trueColour) {
-    int mb, rb, gb, bb;
-
-    /* Bit replication is much cheaper than multiplication and division */
-
-    mb = minBits;
-    rb = redBits;
-    gb = greenBits;
-    bb = blueBits;
-
-    *r = (p >> redShift) << (8 - rb);
-    *g = (p >> greenShift) << (8 - gb);
-    *b = (p >> blueShift) << (8 - bb);
-
-    while (mb < 8) {
-      *r = *r | (*r >> rb);
-      *g = *g | (*g >> gb);
-      *b = *b | (*b >> bb);
-      mb <<= 1;
-      rb <<= 1;
-      gb <<= 1;
-      bb <<= 1;
-    }
-  } else {
-    rdr::U16 r2, g2, b2;
-
-    rgbFromPixel(p, cm, &r2, &g2, &b2);
-
-    *r = r2 >> 8;
-    *g = g2 >> 8;
-    *b = b2 >> 8;
+  int mb, rb, gb, bb;
+
+  /* Bit replication is much cheaper than multiplication and division */
+
+  mb = minBits;
+  rb = redBits;
+  gb = greenBits;
+  bb = blueBits;
+
+  *r = (p >> redShift) << (8 - rb);
+  *g = (p >> greenShift) << (8 - gb);
+  *b = (p >> blueShift) << (8 - bb);
+
+  while (mb < 8) {
+    *r = *r | (*r >> rb);
+    *g = *g | (*g >> gb);
+    *b = *b | (*b >> bb);
+    mb <<= 1;
+    rb <<= 1;
+    gb <<= 1;
+    bb <<= 1;
   }
 }
 
diff --git a/common/rfb/PixelTransformer.cxx b/common/rfb/PixelTransformer.cxx
index cedf9000..73ec349b 100644
--- a/common/rfb/PixelTransformer.cxx
+++ b/common/rfb/PixelTransformer.cxx
@@ -22,10 +22,7 @@
 #include <string.h>
 #include <rfb/PixelFormat.h>
 #include <rfb/Exception.h>
-#include <rfb/ColourMap.h>
-#include <rfb/TrueColourMap.h>
 #include <rfb/PixelBuffer.h>
-#include <rfb/ColourCube.h>
 #include <rfb/PixelTransformer.h>
 
 using namespace rfb;
@@ -100,50 +97,23 @@ static transFnType transRGBFns[][3] = {
   { transRGB16to8, transRGB16to16, transRGB16to32 },
   { transRGB32to8, transRGB32to16, transRGB32to32 }
 };
-static transFnType transRGBCubeFns[][3] = {
-  { transRGBCube16to8, transRGBCube16to16, transRGBCube16to32 },
-  { transRGBCube32to8, transRGBCube32to16, transRGBCube32to32 }
-};
 
 // Table initialisation functions.
 
-typedef void (*initCMtoTCFnType)(rdr::U8** tablep, const PixelFormat& inPF,
-                                 ColourMap* cm, const PixelFormat& outPF);
-typedef void (*initTCtoTCFnType)(rdr::U8** tablep, const PixelFormat& inPF,
-                                 const PixelFormat& outPF);
-typedef void (*initCMtoCubeFnType)(rdr::U8** tablep, const PixelFormat& inPF,
-                                   ColourMap* cm, ColourCube* cube);
-typedef void (*initTCtoCubeFnType)(rdr::U8** tablep, const PixelFormat& inPF,
-                                   ColourCube* cube);
-
+typedef void (*initFnType)(rdr::U8** tablep, const PixelFormat& inPF,
+                           const PixelFormat& outPF);
 
-static initCMtoTCFnType initSimpleCMtoTCFns[] = {
-    initSimpleCMtoTC8, initSimpleCMtoTC16, initSimpleCMtoTC32
+static initFnType initSimpleFns[] = {
+    initSimple8, initSimple16, initSimple32
 };
 
-static initTCtoTCFnType initSimpleTCtoTCFns[] = {
-    initSimpleTCtoTC8, initSimpleTCtoTC16, initSimpleTCtoTC32
-};
-
-static initCMtoCubeFnType initSimpleCMtoCubeFns[] = {
-    initSimpleCMtoCube8, initSimpleCMtoCube16, initSimpleCMtoCube32
-};
-
-static initTCtoCubeFnType initSimpleTCtoCubeFns[] = {
-    initSimpleTCtoCube8, initSimpleTCtoCube16, initSimpleTCtoCube32
-};
-
-static initTCtoTCFnType initRGBTCtoTCFns[] = {
-    initRGBTCtoTC8, initRGBTCtoTC16, initRGBTCtoTC32
-};
-
-static initTCtoCubeFnType initRGBTCtoCubeFns[] = {
-    initRGBTCtoCube8, initRGBTCtoCube16, initRGBTCtoCube32
+static initFnType initRGBFns[] = {
+    initRGB8, initRGB16, initRGB32
 };
 
 
 PixelTransformer::PixelTransformer(bool econ)
-  : economic(econ), cmCallback(0), cube(0), table(0), transFn(0)
+  : economic(econ), table(0), transFn(0)
 {
 }
 
@@ -152,17 +122,11 @@ PixelTransformer::~PixelTransformer()
   delete [] table;
 }
 
-void PixelTransformer::init(const PixelFormat& inPF_, ColourMap* inCM_,
-                            const PixelFormat& outPF_, ColourCube* cube_,
-                            setCMFnType cmCallback_, void *cbData_)
+void PixelTransformer::init(const PixelFormat& inPF_,
+                            const PixelFormat& outPF_)
 {
   inPF = inPF_;
-  inCM = inCM_;
-
   outPF = outPF_;
-  cube = cube_;
-  cmCallback = cmCallback_;
-  cbData = cbData_;
 
   if (table)
     delete [] table;
@@ -175,79 +139,17 @@ void PixelTransformer::init(const PixelFormat& inPF_, ColourMap* inCM_,
   if ((outPF.bpp != 8) && (outPF.bpp != 16) && (outPF.bpp != 32))
     throw Exception("PixelTransformer: bpp out not 8, 16 or 32");
 
-  if (!outPF.trueColour) {
-    if (outPF.bpp != 8)
-      throw Exception("PixelTransformer: outPF has color map but not 8bpp");
-
-    if (!inPF.trueColour) {
-      if (inPF.bpp != 8)
-        throw Exception("PixelTransformer: inPF has colorMap but not 8bpp");
-      if (!inCM)
-        throw Exception("PixelTransformer: inPF has colorMap but no colour map specified");
-
-      // CM to CM/Cube
-
-      if (cube) {
-        transFn = transSimpleFns[0][0];
-        (*initSimpleCMtoCubeFns[0]) (&table, inPF, inCM, cube);
-      } else {
-        transFn = noTransFn;
-        setColourMapEntries(0, 256);
-      }
-      return;
-    }
-
-    // TC to CM/Cube
-
-    ColourCube defaultCube(6,6,6);
-    if (!cube) cube = &defaultCube;
-
-    if ((inPF.bpp > 16) || (economic && (inPF.bpp == 16))) {
-      transFn = transRGBCubeFns[inPF.bpp/32][0];
-      (*initRGBTCtoCubeFns[0]) (&table, inPF, cube);
-    } else {
-      transFn = transSimpleFns[inPF.bpp/16][0];
-      (*initSimpleTCtoCubeFns[0]) (&table, inPF, cube);
-    }
-
-    if (cube != &defaultCube)
-      return;
-
-    if (!cmCallback)
-      throw Exception("PixelTransformer: Neither colour map callback nor colour cube provided");
-
-    cmCallback(0, 216, cube, cbData);
-    cube = 0;
-    return;
-  }
-
   if (inPF.equal(outPF)) {
     transFn = noTransFn;
     return;
   }
 
-  if (!inPF.trueColour) {
-
-    // CM to TC
-
-    if (inPF.bpp != 8)
-      throw Exception("PixelTransformer: inPF has colorMap but not 8bpp");
-    if (!inCM)
-      throw Exception("PixelTransformer: inPF has colorMap but no colour map specified");
-
-    transFn = transSimpleFns[0][outPF.bpp/16];
-    (*initSimpleCMtoTCFns[outPF.bpp/16]) (&table, inPF, inCM, outPF);
-    return;
-  }
-
-  // TC to TC
-
   if ((inPF.bpp > 16) || (economic && (inPF.bpp == 16))) {
     transFn = transRGBFns[inPF.bpp/32][outPF.bpp/16];
-    (*initRGBTCtoTCFns[outPF.bpp/16]) (&table, inPF, outPF);
+    (*initRGBFns[outPF.bpp/16]) (&table, inPF, outPF);
   } else {
     transFn = transSimpleFns[inPF.bpp/16][outPF.bpp/16];
-    (*initSimpleTCtoTCFns[outPF.bpp/16]) (&table, inPF, outPF);
+    (*initSimpleFns[outPF.bpp/16]) (&table, inPF, outPF);
   }
 }
 
@@ -256,39 +158,11 @@ const PixelFormat &PixelTransformer::getInPF() const
   return inPF;
 }
 
-const ColourMap *PixelTransformer::getInColourMap() const
-{
-  return inCM;
-}
-
 const PixelFormat &PixelTransformer::getOutPF() const
 {
   return outPF;
 }
 
-const ColourCube *PixelTransformer::getOutColourCube() const
-{
-  return cube;
-}
-
-void PixelTransformer::setColourMapEntries(int firstCol, int nCols)
-{
-  if (nCols == 0)
-    nCols = (1 << inPF.depth) - firstCol;
-
-  if (inPF.trueColour) return; // shouldn't be called in this case
-
-  if (outPF.trueColour) {
-    (*initSimpleCMtoTCFns[outPF.bpp/16]) (&table, inPF, inCM, outPF);
-  } else if (cube) {
-    (*initSimpleCMtoCubeFns[outPF.bpp/16]) (&table, inPF, inCM, cube);
-  } else {
-    if (!cmCallback)
-      throw Exception("PixelTransformer: Neither colour map callback nor colour cube provided");
-    cmCallback(firstCol, nCols, inCM, cbData);
-  }
-}
-
 void PixelTransformer::translatePixels(const void* inPtr, void* outPtr,
                                        int nPixels) const
 {
diff --git a/common/rfb/PixelTransformer.h b/common/rfb/PixelTransformer.h
index 88ec7c40..818daf66 100644
--- a/common/rfb/PixelTransformer.h
+++ b/common/rfb/PixelTransformer.h
@@ -33,11 +33,7 @@ namespace rfb {
                               int outStride, int width, int height);
 
   class SMsgWriter;
-  class ColourMap;
   class PixelBuffer;
-  class ColourCube;
-
-  typedef void (*setCMFnType)(int firstColour, int nColours, ColourMap* cm, void* data);
 
   class PixelTransformer {
   public:
@@ -47,32 +43,12 @@ namespace rfb {
 
     // init() is called to initialise the translation tables.  The inPF and
     // inCM arguments give the source format details, outPF gives the
-    // target pixel format.  If the target has a colour map, then the you
-    // must specify either a colour map callback or a colour cube to indicate
-    // how the target colour map should be handled. If both are specified
-    // then the cube will be used.
+    // target pixel format.
 
-    void init(const PixelFormat& inPF, ColourMap* inCM,
-              const PixelFormat& outPF, ColourCube* cube = NULL,
-              setCMFnType cmCallback = NULL, void *cbData = NULL);
+    void init(const PixelFormat& inPF, const PixelFormat& outPF);
 
     const PixelFormat &getInPF() const;
-    const ColourMap *getInColourMap() const;
-
     const PixelFormat &getOutPF() const;
-    const ColourCube *getOutColourCube() const;
-
-    // setColourMapEntries() is called when the colour map specified to init()
-    // has changed.  firstColour and nColours specify which part of the
-    // colour map has changed.  If nColours is 0, this means the rest of the
-    // colour map. If the target also has a colour map, then the callback or
-    // cube specified to init() will be used. If the target is true colour
-    // then instead we update the internal translation table - in this case
-    // the caller should also make sure that the target surface receives an
-    // update of the relevant parts (the simplest thing to do is just update
-    // the whole framebuffer, though it is possible to be smarter than this).
-
-    void setColourMapEntries(int firstColour, int nColours);
 
     // translatePixels() translates the given number of pixels from inPtr,
     // putting it into the buffer pointed to by outPtr.  The pixels at inPtr
@@ -91,12 +67,7 @@ namespace rfb {
     bool economic;
 
     PixelFormat inPF;
-    ColourMap* inCM;
-
     PixelFormat outPF;
-    setCMFnType cmCallback;
-    void *cbData;
-    ColourCube* cube;
 
     rdr::U8* table;
     transFnType transFn;
diff --git a/common/rfb/SConnection.cxx b/common/rfb/SConnection.cxx
index ed9f8459..48acf0ac 100644
--- a/common/rfb/SConnection.cxx
+++ b/common/rfb/SConnection.cxx
@@ -306,10 +306,6 @@ void SConnection::approveConnection(bool accept, const char* reason)
   }
 }
 
-void SConnection::setInitialColourMap()
-{
-}
-
 void SConnection::clientInit(bool shared)
 {
   writer_->writeServerInit();
@@ -320,6 +316,8 @@ void SConnection::setPixelFormat(const PixelFormat& pf)
 {
   SMsgHandler::setPixelFormat(pf);
   readyForSetColourMapEntries = true;
+  if (!pf.trueColour)
+    writeFakeColourMap();
 }
 
 void SConnection::framebufferUpdateRequest(const Rect& r, bool incremental)
@@ -327,7 +325,7 @@ void SConnection::framebufferUpdateRequest(const Rect& r, bool incremental)
   if (!readyForSetColourMapEntries) {
     readyForSetColourMapEntries = true;
     if (!cp.pf().trueColour) {
-      setInitialColourMap();
+      writeFakeColourMap();
     }
   }
 }
@@ -347,3 +345,14 @@ void SConnection::enableContinuousUpdates(bool enable,
                                           int x, int y, int w, int h)
 {
 }
+
+void SConnection::writeFakeColourMap(void)
+{
+  int i;
+  rdr::U16 red[256], green[256], blue[256];
+
+  for (i = 0;i < 256;i++)
+    cp.pf().rgbFromPixel(i, &red[i], &green[i], &blue[i]);
+
+  writer()->writeSetColourMapEntries(0, 256, red, green, blue);
+}
diff --git a/common/rfb/SConnection.h b/common/rfb/SConnection.h
index a3a9fc8f..b6ff7cd5 100644
--- a/common/rfb/SConnection.h
+++ b/common/rfb/SConnection.h
@@ -102,11 +102,6 @@ namespace rfb {
     // SConnection::framebufferUpdateRequest().
     virtual void framebufferUpdateRequest(const Rect& r, bool incremental);
 
-    // setInitialColourMap() is called when the client needs an initial
-    // SetColourMapEntries message.  In fact this only happens when the client
-    // accepts the server's default pixel format and it uses a colour map.
-    virtual void setInitialColourMap();
-
     // fence() is called when we get a fence request or response. By default
     // it responds directly to requests (stating it doesn't support any
     // synchronisation) and drops responses. Override to implement more proper
@@ -180,6 +175,7 @@ namespace rfb {
 
   protected:
     void setState(stateEnum s) { state_ = s; }
+    void writeFakeColourMap(void);
 
     bool readyForSetColourMapEntries;
 
diff --git a/common/rfb/SMsgWriter.cxx b/common/rfb/SMsgWriter.cxx
index 615eaa93..5dc7c22f 100644
--- a/common/rfb/SMsgWriter.cxx
+++ b/common/rfb/SMsgWriter.cxx
@@ -23,7 +23,6 @@
 #include <rfb/msgTypes.h>
 #include <rfb/fenceTypes.h>
 #include <rfb/Exception.h>
-#include <rfb/ColourMap.h>
 #include <rfb/ConnParams.h>
 #include <rfb/UpdateTracker.h>
 #include <rfb/Encoder.h>
@@ -76,18 +75,18 @@ void SMsgWriter::writeServerInit()
 }
 
 void SMsgWriter::writeSetColourMapEntries(int firstColour, int nColours,
-                                          ColourMap* cm)
+                                          const rdr::U16 red[],
+                                          const rdr::U16 green[],
+                                          const rdr::U16 blue[])
 {
   startMsg(msgTypeSetColourMapEntries);
   os->pad(1);
   os->writeU16(firstColour);
   os->writeU16(nColours);
   for (int i = firstColour; i < firstColour+nColours; i++) {
-    int r, g, b;
-    cm->lookup(i, &r, &g, &b);
-    os->writeU16(r);
-    os->writeU16(g);
-    os->writeU16(b);
+    os->writeU16(red[i]);
+    os->writeU16(green[i]);
+    os->writeU16(blue[i]);
   }
   endMsg();
 }
diff --git a/common/rfb/SMsgWriter.h b/common/rfb/SMsgWriter.h
index 5d45411d..ee59eb36 100644
--- a/common/rfb/SMsgWriter.h
+++ b/common/rfb/SMsgWriter.h
@@ -33,7 +33,6 @@ namespace rfb {
 
   class ConnParams;
   class TransImageGetter;
-  class ColourMap;
   class Region;
   class UpdateInfo;
   class Encoder;
@@ -56,10 +55,11 @@ namespace rfb {
     // Methods to write normal protocol messages
 
     // writeSetColourMapEntries() writes a setColourMapEntries message, using
-    // the given ColourMap object to lookup the RGB values of the given range
-    // of colours.
+    // the given colour entries.
     void writeSetColourMapEntries(int firstColour, int nColours,
-                                  ColourMap* cm);
+                                  const rdr::U16 red[],
+                                  const rdr::U16 green[],
+                                  const rdr::U16 blue[]);
 
     // writeBell() and writeServerCutText() do the obvious thing.
     void writeBell();
diff --git a/common/rfb/TightEncoder.cxx b/common/rfb/TightEncoder.cxx
index b94b53e3..800d3316 100644
--- a/common/rfb/TightEncoder.cxx
+++ b/common/rfb/TightEncoder.cxx
@@ -338,9 +338,9 @@ void TightEncoder::writeRect(const Rect& _r, TransImageGetter* _ig)
       if (checkSolidTile(sr, &colorValue, false)) {
 
          if (jpegSubsampling == subsampleGray && jpegQuality != -1) {
-           Colour rgb;
-           serverpf.rgbFromPixel(colorValue, NULL, &rgb);
-           rdr::U32 lum = ((257 * rgb.r) + (504 * rgb.g) + (98 * rgb.b)
+           rdr::U16 r, g, b;
+           serverpf.rgbFromPixel(colorValue, &r, &g, &b);
+           rdr::U32 lum = ((257 * r) + (504 * g) + (98 * b)
                            + 16500) / 1000;
            colorValue = lum + (lum << 8) + (lum << 16);
          }
diff --git a/common/rfb/TransImageGetter.cxx b/common/rfb/TransImageGetter.cxx
index 3900d065..05df1a98 100644
--- a/common/rfb/TransImageGetter.cxx
+++ b/common/rfb/TransImageGetter.cxx
@@ -24,10 +24,7 @@
 #include <rfb/Exception.h>
 #include <rfb/ConnParams.h>
 #include <rfb/SMsgWriter.h>
-#include <rfb/ColourMap.h>
-#include <rfb/TrueColourMap.h>
 #include <rfb/PixelBuffer.h>
-#include <rfb/ColourCube.h>
 #include <rfb/TransImageGetter.h>
 
 using namespace rfb;
@@ -42,18 +39,12 @@ TransImageGetter::~TransImageGetter()
 }
 
 void TransImageGetter::init(PixelBuffer* pb_, const PixelFormat& out,
-                            SMsgWriter* writer_, ColourCube* cube_)
+                            SMsgWriter* writer_)
 {
   pb = pb_;
   writer = writer_;
 
-  PixelTransformer::init(pb->getPF(), pb->getColourMap(), out, cube_,
-                         cmCallback, this);
-}
-
-void TransImageGetter::setColourMapEntries(int firstCol, int nCols)
-{
-  PixelTransformer::setColourMapEntries(firstCol, nCols);
+  PixelTransformer::init(pb->getPF(), out);
 }
 
 const rdr::U8 *TransImageGetter::getRawBufferR(const Rect &r, int *stride)
@@ -74,15 +65,3 @@ void TransImageGetter::getImage(void* outPtr, const Rect& r, int outStride)
   translateRect((void*)inPtr, inStride, Rect(0, 0, r.width(), r.height()),
                 outPtr, outStride, Point(0, 0));
 }
-
-void TransImageGetter::cmCallback(int firstColour, int nColours,
-                                  ColourMap* cm, void* data)
-{
-  TransImageGetter *self;
-
-  assert(data);
-  self = (TransImageGetter*)data;
-
-  if (self->writer)
-    self->writer->writeSetColourMapEntries(firstColour, nColours, cm);
-}
diff --git a/common/rfb/TransImageGetter.h b/common/rfb/TransImageGetter.h
index b241b83c..ec3a2c87 100644
--- a/common/rfb/TransImageGetter.h
+++ b/common/rfb/TransImageGetter.h
@@ -32,9 +32,7 @@
 namespace rfb {
 
   class SMsgWriter;
-  class ColourMap;
   class PixelBuffer;
-  class ColourCube;
 
   class TransImageGetter : public ImageGetter,
                            public PixelTransformer {
@@ -45,25 +43,9 @@ namespace rfb {
 
     // init() is called to initialise the translation tables.  The PixelBuffer
     // argument gives the source data and format details, outPF gives the
-    // client's pixel format.  If the client has a colour map, then the writer
-    // argument is used to send a SetColourMapEntries message to the client.
+    // client's pixel format.
 
-    void init(PixelBuffer* pb, const PixelFormat& outPF, SMsgWriter* writer=0,
-              ColourCube* cube=0);
-
-    // setColourMapEntries() is called when the PixelBuffer has a colour map
-    // which has changed.  firstColour and nColours specify which part of the
-    // colour map has changed.  If nColours is 0, this means the rest of the
-    // colour map.  The PixelBuffer previously passed to init() must have a
-    // valid ColourMap object.  If the client also has a colour map, then the
-    // writer argument is used to send a SetColourMapEntries message to the
-    // client.  If the client is true colour then instead we update the
-    // internal translation table - in this case the caller should also make
-    // sure that the client receives an update of the relevant parts of the
-    // framebuffer (the simplest thing to do is just update the whole
-    // framebuffer, though it is possible to be smarter than this).
-
-    void setColourMapEntries(int firstColour, int nColours);
+    void init(PixelBuffer* pb, const PixelFormat& outPF, SMsgWriter* writer=0);
 
     // getImage() gets the given rectangle of data from the PixelBuffer,
     // translates it into the client's pixel format and puts it in the buffer
@@ -89,10 +71,6 @@ namespace rfb {
     // the rectangle given to getImage().
     void setOffset(const Point& offset_) { offset = offset_; }
 
-  private:
-    static void cmCallback(int firstColour, int nColours,
-                           ColourMap* cm, void* data);
-
   private:
     bool economic;
     PixelBuffer* pb;
@@ -100,7 +78,6 @@ namespace rfb {
     SMsgWriter* writer;
     rdr::U8* table;
     transFnType transFn;
-    ColourCube* cube;
     Point offset;
   };
 }
diff --git a/common/rfb/TrueColourMap.h b/common/rfb/TrueColourMap.h
deleted file mode 100644
index d79647e3..00000000
--- a/common/rfb/TrueColourMap.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
- * 
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- * 
- * This software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
- * USA.
- */
-#ifndef __RFB_TRUECOLOURMAP_H__
-#define __RFB_TRUECOLOURMAP_H__
-
-#include <rfb/ColourMap.h>
-
-namespace rfb {
-
-  class TrueColourMap : public ColourMap {
-  public:
-    TrueColourMap(const PixelFormat& pf_) : pf(pf_) {}
-
-    virtual void lookup(int i, int* r, int* g, int* b)
-    {
-      rdr::U16 _r, _g, _b;
-      pf.rgbFromPixel(i, NULL, &_r, &_g, &_b);
-      *r = _r;
-      *g = _g;
-      *b = _b;
-    }
-  private:
-    PixelFormat pf;
-  };
-}
-#endif
diff --git a/common/rfb/VNCSConnectionST.cxx b/common/rfb/VNCSConnectionST.cxx
index 9b6b594b..452f7246 100644
--- a/common/rfb/VNCSConnectionST.cxx
+++ b/common/rfb/VNCSConnectionST.cxx
@@ -253,15 +253,6 @@ void VNCSConnectionST::screenLayoutChangeOrClose(rdr::U16 reason)
   }
 }
 
-void VNCSConnectionST::setColourMapEntriesOrClose(int firstColour,int nColours)
-{
-  try {
-    setColourMapEntries(firstColour, nColours);
-  } catch(rdr::Exception& e) {
-    close(e.str());
-  }
-}
-
 void VNCSConnectionST::bellOrClose()
 {
   try {
@@ -625,11 +616,6 @@ void VNCSConnectionST::setDesktopSize(int fb_width, int fb_height,
   writeFramebufferUpdate();
 }
 
-void VNCSConnectionST::setInitialColourMap()
-{
-  setColourMapEntries(0, 0);
-}
-
 void VNCSConnectionST::fence(rdr::U32 flags, unsigned len, const char data[])
 {
   if (flags & fenceFlagRequest) {
@@ -1151,21 +1137,6 @@ void VNCSConnectionST::screenLayoutChange(rdr::U16 reason)
   writeFramebufferUpdate();
 }
 
-void VNCSConnectionST::setColourMapEntries(int firstColour, int nColours)
-{
-  if (!readyForSetColourMapEntries)
-    return;
-  if (server->pb->getPF().trueColour)
-    return;
-
-  image_getter.setColourMapEntries(firstColour, nColours);
-
-  if (cp.pf().trueColour) {
-    updates.add_changed(server->pb->getRect());
-    writeFramebufferUpdate();
-  }
-}
-
 
 // setCursor() is called whenever the cursor has changed shape or pixel format.
 // If the client supports local cursor then it will arrange for the cursor to
diff --git a/common/rfb/VNCSConnectionST.h b/common/rfb/VNCSConnectionST.h
index 5eb908ab..3c7672f4 100644
--- a/common/rfb/VNCSConnectionST.h
+++ b/common/rfb/VNCSConnectionST.h
@@ -71,7 +71,6 @@ namespace rfb {
     // Wrappers to make these methods "safe" for VNCServerST.
     void writeFramebufferUpdateOrClose();
     void screenLayoutChangeOrClose(rdr::U16 reason);
-    void setColourMapEntriesOrClose(int firstColour, int nColours);
     void setCursorOrClose();
     void bellOrClose();
     void serverCutTextOrClose(const char *str, int len);
@@ -138,7 +137,6 @@ namespace rfb {
     virtual void framebufferUpdateRequest(const Rect& r, bool incremental);
     virtual void setDesktopSize(int fb_width, int fb_height,
                                 const ScreenSet& layout);
-    virtual void setInitialColourMap();
     virtual void fence(rdr::U32 flags, unsigned len, const char data[]);
     virtual void enableContinuousUpdates(bool enable,
                                          int x, int y, int w, int h);
@@ -173,7 +171,6 @@ namespace rfb {
 
     void writeRenderedCursorRect();
     void screenLayoutChange(rdr::U16 reason);
-    void setColourMapEntries(int firstColour, int nColours);
     void setCursor();
     void setDesktopName(const char *name);
     void setSocketTimeouts();
diff --git a/common/rfb/VNCServer.h b/common/rfb/VNCServer.h
index 280b68b4..787bf8cb 100644
--- a/common/rfb/VNCServer.h
+++ b/common/rfb/VNCServer.h
@@ -52,12 +52,6 @@ namespace rfb {
     // getPixelBuffer() returns a pointer to the PixelBuffer object.
     virtual PixelBuffer* getPixelBuffer() const = 0;
 
-    // setColourMapEntries() tells the server that some entries in the colour
-    // map have changed.  The server will retrieve them via the PixelBuffer's
-    // ColourMap object.  This may result in protocol messages being sent.
-    // If nColours is 0, this means the rest of the colour map.
-    virtual void setColourMapEntries(int firstColour=0, int nColours=0) = 0;
-
     // serverCutText() tells the server that the cut text has changed.  This
     // will normally be sent to all clients.
     virtual void serverCutText(const char* str, int len) = 0;
diff --git a/common/rfb/VNCServerST.cxx b/common/rfb/VNCServerST.cxx
index b07f5c35..db142fe4 100644
--- a/common/rfb/VNCServerST.cxx
+++ b/common/rfb/VNCServerST.cxx
@@ -359,15 +359,6 @@ void VNCServerST::setScreenLayout(const ScreenSet& layout)
   }
 }
 
-void VNCServerST::setColourMapEntries(int firstColour, int nColours)
-{
-  std::list<VNCSConnectionST*>::iterator ci, ci_next;
-  for (ci = clients.begin(); ci != clients.end(); ci = ci_next) {
-    ci_next = ci; ci_next++;
-    (*ci)->setColourMapEntriesOrClose(firstColour, nColours);
-  }
-}
-
 void VNCServerST::bell()
 {
   std::list<VNCSConnectionST*>::iterator ci, ci_next;
diff --git a/common/rfb/VNCServerST.h b/common/rfb/VNCServerST.h
index e75954fc..88d02559 100644
--- a/common/rfb/VNCServerST.h
+++ b/common/rfb/VNCServerST.h
@@ -88,7 +88,6 @@ namespace rfb {
     virtual void setPixelBuffer(PixelBuffer* pb);
     virtual void setScreenLayout(const ScreenSet& layout);
     virtual PixelBuffer* getPixelBuffer() const { return pb; }
-    virtual void setColourMapEntries(int firstColour=0, int nColours=0);
     virtual void serverCutText(const char* str, int len);
     virtual void add_changed(const Region &region);
     virtual void add_copied(const Region &dest, const Point &delta);
diff --git a/common/rfb/tightDecode.h b/common/rfb/tightDecode.h
index 620fb798..1c7cf5e5 100644
--- a/common/rfb/tightDecode.h
+++ b/common/rfb/tightDecode.h
@@ -73,7 +73,7 @@ void TIGHT_DECODE (const Rect& r)
     if (cutZeros) {
       rdr::U8 bytebuf[3];
       is->readBytes(bytebuf, 3);
-      serverpf.bufferFromRGB((rdr::U8*)&pix, bytebuf, 1, NULL);
+      serverpf.bufferFromRGB((rdr::U8*)&pix, bytebuf, 1);
     } else {
       pix = is->READ_PIXEL();
     }
@@ -107,7 +107,7 @@ void TIGHT_DECODE (const Rect& r)
       if (cutZeros) {
         rdr::U8 tightPalette[256 * 3];
         is->readBytes(tightPalette, palSize * 3);
-        serverpf.bufferFromRGB((rdr::U8*)palette, tightPalette, palSize, NULL);
+        serverpf.bufferFromRGB((rdr::U8*)palette, tightPalette, palSize);
       } else {
         is->readBytes(palette, palSize * sizeof(PIXEL_T));
       }
@@ -175,7 +175,7 @@ void TIGHT_DECODE (const Rect& r)
       int w = r.width();
       if (cutZeros) {
         while (h > 0) {
-          serverpf.bufferFromRGB((rdr::U8*)ptr, srcPtr, w, NULL);
+          serverpf.bufferFromRGB((rdr::U8*)ptr, srcPtr, w);
           ptr += stride;
           srcPtr += w * 3;
           h--;
@@ -284,7 +284,7 @@ TightDecoder::FilterGradient24(rdr::U8 *netbuf, PIXEL_T* buf, int stride,
       pix[c] = netbuf[y*rectWidth*3+c] + prevRow[c];
       thisRow[c] = pix[c];
     }
-    serverpf.bufferFromRGB((rdr::U8*)&buf[y*stride], pix, 1, NULL);
+    serverpf.bufferFromRGB((rdr::U8*)&buf[y*stride], pix, 1);
 
     /* Remaining pixels of a row */
     for (x = 1; x < rectWidth; x++) {
@@ -298,7 +298,7 @@ TightDecoder::FilterGradient24(rdr::U8 *netbuf, PIXEL_T* buf, int stride,
         pix[c] = netbuf[(y*rectWidth+x)*3+c] + est[c];
         thisRow[x*3+c] = pix[c];
       }
-      serverpf.bufferFromRGB((rdr::U8*)&buf[y*stride+x], pix, 1, NULL);
+      serverpf.bufferFromRGB((rdr::U8*)&buf[y*stride+x], pix, 1);
     }
 
     memcpy(prevRow, thisRow, sizeof(prevRow));
@@ -324,13 +324,13 @@ FILTER_GRADIENT(rdr::U8 *netbuf, PIXEL_T* buf, int stride, const Rect& r)
 
   for (y = 0; y < rectHeight; y++) {
     /* First pixel in a row */
-    serverpf.rgbFromBuffer(pix, (rdr::U8*)&netbuf[y*rectWidth], 1, NULL);
+    serverpf.rgbFromBuffer(pix, (rdr::U8*)&netbuf[y*rectWidth], 1);
     for (c = 0; c < 3; c++)
       pix[c] += prevRow[c];
 
     memcpy(thisRow, pix, sizeof(pix));
 
-    serverpf.bufferFromRGB((rdr::U8*)&buf[y*stride], pix, 1, NULL);
+    serverpf.bufferFromRGB((rdr::U8*)&buf[y*stride], pix, 1);
 
     /* Remaining pixels of a row */
     for (x = 1; x < rectWidth; x++) {
@@ -343,13 +343,13 @@ FILTER_GRADIENT(rdr::U8 *netbuf, PIXEL_T* buf, int stride, const Rect& r)
         }
       }
 
-      serverpf.rgbFromBuffer(pix, (rdr::U8*)&netbuf[y*rectWidth+x], 1, NULL);
+      serverpf.rgbFromBuffer(pix, (rdr::U8*)&netbuf[y*rectWidth+x], 1);
       for (c = 0; c < 3; c++)
         pix[c] += est[c];
 
       memcpy(&thisRow[x*3], pix, sizeof(pix));
 
-      serverpf.bufferFromRGB((rdr::U8*)&buf[y*stride+x], pix, 1, NULL);
+      serverpf.bufferFromRGB((rdr::U8*)&buf[y*stride+x], pix, 1);
     }
 
     memcpy(prevRow, thisRow, sizeof(prevRow));
diff --git a/common/rfb/tightEncode.h b/common/rfb/tightEncode.h
index caa63f76..3f0647de 100644
--- a/common/rfb/tightEncode.h
+++ b/common/rfb/tightEncode.h
@@ -99,7 +99,7 @@ unsigned int PACK_PIXELS (PIXEL_T *buf, unsigned int count)
   rdr::U8 *dst = (rdr::U8 *)buf;
   for (unsigned int i = 0; i < count; i++) {
     pix = *buf++;
-    clientpf.rgbFromBuffer(dst, (rdr::U8*)&pix, 1, NULL);
+    clientpf.rgbFromBuffer(dst, (rdr::U8*)&pix, 1);
     dst += 3;
   }
   return count * 3;
diff --git a/common/rfb/transInitTempl.h b/common/rfb/transInitTempl.h
index 464cfdfc..348f12b9 100644
--- a/common/rfb/transInitTempl.h
+++ b/common/rfb/transInitTempl.h
@@ -46,12 +46,8 @@ namespace rfb {
 
 #define OUTPIXEL rdr::CONCAT2E(U,BPPOUT)
 #define SWAPOUT CONCAT2E(SWAP,BPPOUT)
-#define initSimpleCMtoTCOUT    CONCAT2E(initSimpleCMtoTC,BPPOUT)
-#define initSimpleTCtoTCOUT    CONCAT2E(initSimpleTCtoTC,BPPOUT)
-#define initSimpleCMtoCubeOUT  CONCAT2E(initSimpleCMtoCube,BPPOUT)
-#define initSimpleTCtoCubeOUT  CONCAT2E(initSimpleTCtoCube,BPPOUT)
-#define initRGBTCtoTCOUT       CONCAT2E(initRGBTCtoTC,BPPOUT)
-#define initRGBTCtoCubeOUT     CONCAT2E(initRGBTCtoCube,BPPOUT)
+#define initSimpleOUT          CONCAT2E(initSimple,BPPOUT)
+#define initRGBOUT             CONCAT2E(initRGB,BPPOUT)
 #define initOneRGBTableOUT     CONCAT2E(initOneRGBTable,BPPOUT)
 #define initOneRGBCubeTableOUT CONCAT2E(initOneRGBCubeTable,BPPOUT)
 
@@ -61,34 +57,8 @@ namespace rfb {
   static bool nativeBigEndian = *(rdr::U8*)(&endianTest) != 1;
 #endif
 
-void initSimpleCMtoTCOUT (rdr::U8** tablep, const PixelFormat& inPF,
-                          ColourMap* cm, const PixelFormat& outPF)
-{
-  if (inPF.bpp != 8 && inPF.bigEndian != nativeBigEndian)
-    throw Exception("Internal error: inPF is not native endian");
-
-  int size = 1 << inPF.bpp;
-
-  delete [] *tablep;
-  *tablep = new rdr::U8[size * sizeof(OUTPIXEL)];
-  OUTPIXEL* table = (OUTPIXEL*)*tablep;
-
-  for (int i = 0; i < size; i++) {
-    int r,g,b;
-    cm->lookup(i,&r,&g,&b);
-
-    table[i] = ((((r * outPF.redMax   + 32767) / 65535) << outPF.redShift) |
-                (((g * outPF.greenMax + 32767) / 65535) << outPF.greenShift) |
-                (((b * outPF.blueMax  + 32767) / 65535) << outPF.blueShift));
-#if (BPPOUT != 8)
-    if (outPF.bigEndian != nativeBigEndian)
-      table[i] = SWAPOUT (table[i]);
-#endif
-  }
-}
-
-void initSimpleTCtoTCOUT (rdr::U8** tablep, const PixelFormat& inPF,
-                          const PixelFormat& outPF)
+void initSimpleOUT (rdr::U8** tablep, const PixelFormat& inPF,
+                    const PixelFormat& outPF)
 {
   if (inPF.bpp != 8 && inPF.bigEndian != nativeBigEndian)
     throw Exception("Internal error: inPF is not native endian");
@@ -118,55 +88,8 @@ void initSimpleTCtoTCOUT (rdr::U8** tablep, const PixelFormat& inPF,
   }
 }
 
-void initSimpleCMtoCubeOUT (rdr::U8** tablep, const PixelFormat& inPF,
-                            ColourMap* cm, ColourCube* cube)
-{
-  if (inPF.bpp != 8 && inPF.bigEndian != nativeBigEndian)
-    throw Exception("Internal error: inPF is not native endian");
-
-  int size = 1 << inPF.bpp;
-
-  delete [] *tablep;
-  *tablep = new rdr::U8[size * sizeof(OUTPIXEL)];
-  OUTPIXEL* table = (OUTPIXEL*)*tablep;
-
-  for (int i = 0; i < size; i++) {
-    int r,g,b;
-    cm->lookup(i,&r,&g,&b);
-    r = (r * (cube->nRed-1)   + 32767) / 65535;
-    g = (g * (cube->nGreen-1) + 32767) / 65535;
-    b = (b * (cube->nBlue-1)  + 32767) / 65535;
-    table[i] = cube->lookup(r, g, b);
-  }
-}
-
-void initSimpleTCtoCubeOUT (rdr::U8** tablep, const PixelFormat& inPF,
-                            ColourCube* cube)
-{
-  if (inPF.bpp != 8 && inPF.bigEndian != nativeBigEndian)
-    throw Exception("Internal error: inPF is not native endian");
-
-  int size = 1 << inPF.bpp;
-
-  delete [] *tablep;
-  *tablep = new rdr::U8[size * sizeof(OUTPIXEL)];
-  OUTPIXEL* table = (OUTPIXEL*)*tablep;
-
-  for (int i = 0; i < size; i++) {
-    int r = (i >> inPF.redShift)   & inPF.redMax;
-    int g = (i >> inPF.greenShift) & inPF.greenMax;
-    int b = (i >> inPF.blueShift)  & inPF.blueMax;
-
-    r = (r * (cube->nRed-1)   + inPF.redMax/2)   / inPF.redMax;
-    g = (g * (cube->nGreen-1) + inPF.greenMax/2) / inPF.greenMax;
-    b = (b * (cube->nBlue-1)  + inPF.blueMax/2)  / inPF.blueMax;
-
-    table[i] = cube->lookup(r, g, b);
-  }
-}
-
-void initOneRGBTableOUT (OUTPIXEL* table, int inMax, int outMax,
-                         int outShift, bool swap)
+static void initOneRGBTableOUT (OUTPIXEL* table, int inMax, int outMax,
+                                int outShift, bool swap)
 {
   int size = inMax + 1;
 
@@ -179,8 +102,8 @@ void initOneRGBTableOUT (OUTPIXEL* table, int inMax, int outMax,
   }
 }
 
-void initRGBTCtoTCOUT (rdr::U8** tablep, const PixelFormat& inPF,
-                       const PixelFormat& outPF)
+void initRGBOUT (rdr::U8** tablep, const PixelFormat& inPF,
+                 const PixelFormat& outPF)
 {
   if (inPF.bpp != 8 && inPF.bigEndian != nativeBigEndian)
     throw Exception("Internal error: inPF is not native endian");
@@ -205,50 +128,8 @@ void initRGBTCtoTCOUT (rdr::U8** tablep, const PixelFormat& inPF,
 }
 
 
-void initOneRGBCubeTableOUT (OUTPIXEL* table, int inMax, int outMax,
-                             int outMult)
-{
-  int size = inMax + 1;
-
-  for (int i = 0; i < size; i++) {
-    table[i] = ((i * outMax + inMax / 2) / inMax) * outMult;
-  }
-}
-
-void initRGBTCtoCubeOUT (rdr::U8** tablep, const PixelFormat& inPF,
-                         ColourCube* cube)
-{
-  if (inPF.bpp != 8 && inPF.bigEndian != nativeBigEndian)
-    throw Exception("Internal error: inPF is not native endian");
-
-  int size = inPF.redMax + inPF.greenMax + inPF.blueMax + 3 + cube->size();
-
-  delete [] *tablep;
-  *tablep = new rdr::U8[size * sizeof(OUTPIXEL)];
-
-  OUTPIXEL* redTable = (OUTPIXEL*)*tablep;
-  OUTPIXEL* greenTable = redTable + inPF.redMax + 1;
-  OUTPIXEL* blueTable = greenTable + inPF.greenMax + 1;
-  OUTPIXEL* cubeTable = blueTable + inPF.blueMax + 1;
-
-  initOneRGBCubeTableOUT (redTable,   inPF.redMax,   cube->nRed-1,
-                               cube->redMult());
-  initOneRGBCubeTableOUT (greenTable, inPF.greenMax, cube->nGreen-1,
-                               cube->greenMult());
-  initOneRGBCubeTableOUT (blueTable,  inPF.blueMax,  cube->nBlue-1,
-                               cube->blueMult());
-  for (int i = 0; i < cube->size(); i++) {
-    cubeTable[i] = cube->table[i];
-  }
-}
-
 #undef OUTPIXEL
-#undef initSimpleCMtoTCOUT
-#undef initSimpleTCtoTCOUT
-#undef initSimpleCMtoCubeOUT
-#undef initSimpleTCtoCubeOUT
-#undef initRGBTCtoTCOUT
-#undef initRGBTCtoCubeOUT
+#undef initSimpleOUT
+#undef initRGBOUT
 #undef initOneRGBTableOUT
-#undef initOneRGBCubeTableOUT
 }
diff --git a/common/rfb/transTempl.h b/common/rfb/transTempl.h
index b133e869..49edb0ac 100644
--- a/common/rfb/transTempl.h
+++ b/common/rfb/transTempl.h
@@ -42,7 +42,6 @@
 #define OUTPIXEL rdr::CONCAT2E(U,BPPOUT)
 #define transSimpleINtoOUT CONCAT4E(transSimple,BPPIN,to,BPPOUT)
 #define transRGBINtoOUT CONCAT4E(transRGB,BPPIN,to,BPPOUT)
-#define transRGBCubeINtoOUT CONCAT4E(transRGBCube,BPPIN,to,BPPOUT)
 
 #if (BPPIN <= 16)
 
@@ -111,41 +110,9 @@ void transRGBINtoOUT (void* table,
   }
 }
 
-// transRGBCubeINtoOUT is similar to transRGBINtoOUT but also looks up the
-// colour cube index in a fourth table to yield a pixel value.
-
-void transRGBCubeINtoOUT (void* table,
-                          const PixelFormat& inPF, const void* inPtr, int inStride,
-                          const PixelFormat& outPF, void* outPtr,
-                          int outStride, int width, int height)
-{
-  OUTPIXEL* redTable = (OUTPIXEL*)table;
-  OUTPIXEL* greenTable = redTable + inPF.redMax + 1;
-  OUTPIXEL* blueTable = greenTable + inPF.greenMax + 1;
-  OUTPIXEL* cubeTable = blueTable + inPF.blueMax + 1;
-  INPIXEL* ip = (INPIXEL*)inPtr;
-  OUTPIXEL* op = (OUTPIXEL*)outPtr;
-  int inExtra = inStride - width;
-  int outExtra = outStride - width;
-
-  while (height > 0) {
-    OUTPIXEL* opEndOfRow = op + width;
-    while (op < opEndOfRow) {
-      *op++ = cubeTable[(redTable  [(*ip >> inPF.redShift)   & inPF.redMax] +
-                         greenTable[(*ip >> inPF.greenShift) & inPF.greenMax] +
-                         blueTable [(*ip >> inPF.blueShift)  & inPF.blueMax])];
-      ip++;
-    }
-    ip += inExtra;
-    op += outExtra;
-    height--;
-  }
-}
-
 #endif
 
 #undef INPIXEL
 #undef OUTPIXEL
 #undef transSimpleINtoOUT
 #undef transRGBINtoOUT
-#undef transRGBCubeINtoOUT
diff --git a/tests/pixelconv.cxx b/tests/pixelconv.cxx
index ef9d3aac..1d19b88e 100644
--- a/tests/pixelconv.cxx
+++ b/tests/pixelconv.cxx
@@ -101,7 +101,7 @@ static void doTests(rfb::PixelFormat &dstpf, rfb::PixelFormat &srcpf)
   if (srcpf.isLittleEndian()) {
     delete pt;
     pt = new rfb::PixelTransformer;
-    pt->init(srcpf, NULL, dstpf);
+    pt->init(srcpf, dstpf);
   }
 
   printf("%s,%s", srcb, dstb);
diff --git a/unix/x0vncserver/XPixelBuffer.cxx b/unix/x0vncserver/XPixelBuffer.cxx
index aa52620a..f88eda49 100644
--- a/unix/x0vncserver/XPixelBuffer.cxx
+++ b/unix/x0vncserver/XPixelBuffer.cxx
@@ -29,7 +29,7 @@
 using namespace rfb;
 
 XPixelBuffer::XPixelBuffer(Display *dpy, ImageFactory &factory,
-                           const Rect &rect, ColourMap* cm)
+                           const Rect &rect)
   : FullFramePixelBuffer(),
     m_poller(0),
     m_dpy(dpy),
@@ -54,7 +54,6 @@ XPixelBuffer::XPixelBuffer(Display *dpy, ImageFactory &factory,
   width_ = rect.width();
   height_ = rect.height();
   data = (rdr::U8 *)m_image->xim->data;
-  colourmap = cm;
 
   // Calculate the distance in pixels between two subsequent scan
   // lines of the framebuffer. This may differ from image width.
diff --git a/unix/x0vncserver/XPixelBuffer.h b/unix/x0vncserver/XPixelBuffer.h
index 29ae94a8..ab4f88e5 100644
--- a/unix/x0vncserver/XPixelBuffer.h
+++ b/unix/x0vncserver/XPixelBuffer.h
@@ -37,8 +37,7 @@ using namespace rfb;
 class XPixelBuffer : public FullFramePixelBuffer
 {
 public:
-  XPixelBuffer(Display *dpy, ImageFactory &factory,
-               const Rect &rect, ColourMap* cm);
+  XPixelBuffer(Display *dpy, ImageFactory &factory, const Rect &rect);
   virtual ~XPixelBuffer();
 
   // Provide access to the underlying Image object.
diff --git a/unix/x0vncserver/x0vncserver.cxx b/unix/x0vncserver/x0vncserver.cxx
index 165441fe..ee39fae1 100644
--- a/unix/x0vncserver/x0vncserver.cxx
+++ b/unix/x0vncserver/x0vncserver.cxx
@@ -135,7 +135,7 @@ private:
 };
 
 
-class XDesktop : public SDesktop, public ColourMap, public TXGlobalEventHandler
+class XDesktop : public SDesktop, public TXGlobalEventHandler
 {
 public:
   XDesktop(Display* dpy_, Geometry *geometry_)
@@ -199,7 +199,7 @@ public:
     ImageFactory factory((bool)useShm, (bool)useOverlay);
 
     // Create pixel buffer and provide it to the server object.
-    pb = new XPixelBuffer(dpy, factory, geometry->getRect(), this);
+    pb = new XPixelBuffer(dpy, factory, geometry->getRect());
     vlog.info("Allocated %s", pb->getImage()->classDesc());
 
     server = (VNCServerST *)vs;
@@ -269,20 +269,6 @@ public:
     return Point(pb->width(), pb->height());
   }
 
-  // -=- ColourMap callbacks
-  virtual void lookup(int index, int* r, int* g, int* b) {
-    XColor xc;
-    xc.pixel = index;
-    if (index < DisplayCells(dpy,DefaultScreen(dpy))) {
-      XQueryColor(dpy, DefaultColormap(dpy,DefaultScreen(dpy)), &xc);
-    } else {
-      xc.red = xc.green = xc.blue = 0;
-    }
-    *r = xc.red;
-    *g = xc.green;
-    *b = xc.blue;
-  }
-
   // -=- TXGlobalEventHandler interface
 
   virtual bool handleGlobalEvent(XEvent* ev) {
diff --git a/unix/xserver/hw/vnc/XserverDesktop.cc b/unix/xserver/hw/vnc/XserverDesktop.cc
index b0d4601e..e53dccde 100644
--- a/unix/xserver/hw/vnc/XserverDesktop.cc
+++ b/unix/xserver/hw/vnc/XserverDesktop.cc
@@ -51,7 +51,6 @@ extern "C" {
 
 extern char *display;
 
-#include "colormapst.h"
 #ifdef RANDR
 #include "randrstr.h"
 #endif
@@ -143,14 +142,11 @@ XserverDesktop::XserverDesktop(ScreenPtr pScreen_,
   : pScreen(pScreen_),
     server(0), httpServer(0),
     listener(listener_), httpListener(httpListener_),
-    cmap(0), deferredUpdateTimerSet(false),
+    deferredUpdateTimerSet(false),
     grabbing(false), ignoreHooks_(false), directFbptr(true),
     queryConnectId(0)
 {
   format = pf;
-  colourmap = this;
-
-  serverReset(pScreen);
 
   server = new VNCServerST(name, this);
   setFramebuffer(pScreen->width, pScreen->height, fbptr, stride);
@@ -171,24 +167,6 @@ XserverDesktop::~XserverDesktop()
   delete server;
 }
 
-void XserverDesktop::serverReset(ScreenPtr pScreen_)
-{
-  pScreen = pScreen_;
-  int i;
-  pointer retval;
-
-#if XORG >= 17
-#define dixLookupResource dixLookupResourceByType
-#endif
-  i = dixLookupResource(&retval, pScreen->defColormap, RT_COLORMAP, NullClient,
-			DixReadAccess);
-
-  /* Handle suspicious conditions */
-  assert(i == Success);
-
-  cmap = (ColormapPtr) retval;
-}
-
 void XserverDesktop::blockUpdates()
 {
   server->blockUpdates();
@@ -379,44 +357,6 @@ XserverDesktop::queryConnection(network::Socket* sock,
   return rfb::VNCServerST::PENDING;
 }
 
-
-void XserverDesktop::setColormap(ColormapPtr cmap_)
-{
-  if (cmap != cmap_) {
-    cmap = cmap_;
-    setColourMapEntries(0, 0);
-  }
-}
-
-void XserverDesktop::setColourMapEntries(ColormapPtr pColormap, int ndef,
-                                         xColorItem* pdef)
-{
-  if (cmap != pColormap || ndef <= 0) return;
-
-  unsigned int first = pdef[0].pixel;
-  unsigned int n = 1;
-
-  for (int i = 1; i < ndef; i++) {
-    if (first + n == pdef[i].pixel) {
-      n++;
-    } else {
-      setColourMapEntries(first, n);
-      first = pdef[i].pixel;
-      n = 1;
-    }
-  }
-  setColourMapEntries(first, n);
-}
-
-void XserverDesktop::setColourMapEntries(int firstColour, int nColours)
-{
-  try {
-    server->setColourMapEntries(firstColour, nColours);
-  } catch (rdr::Exception& e) {
-    vlog.error("XserverDesktop::setColourMapEntries: %s",e.str());
-  }
-}
-
 void XserverDesktop::bell()
 {
   server->bell();
@@ -469,7 +409,7 @@ void XserverDesktop::setCursor(CursorPtr cursor)
           rgb[1] = (*in >>  8) & 0xff;
           rgb[2] = (*in >>  0) & 0xff;
 
-          getPF().bufferFromRGB(out, rgb, 1, this);
+          getPF().bufferFromRGB(out, rgb, 1);
 
           if (((*in >> 24) & 0xff) > 127)
             cursorMask[y * rfbMaskBytesPerRow + x/8] |= 0x80>>(x%8);
@@ -480,42 +420,42 @@ void XserverDesktop::setCursor(CursorPtr cursor)
       }
     } else {
 #endif
-      xColorItem fg, bg;
-      fg.red   = cursor->foreRed;
-      fg.green = cursor->foreGreen;
-      fg.blue  = cursor->foreBlue;
-      FakeAllocColor(cmap, &fg);
-      bg.red   = cursor->backRed;
-      bg.green = cursor->backGreen;
-      bg.blue  = cursor->backBlue;
-      FakeAllocColor(cmap, &bg);
-      FakeFreeColor(cmap, fg.pixel);
-      FakeFreeColor(cmap, bg.pixel);
+      rdr::U8 rgb[3];
+      rdr::U8 fg[4], bg[4];
+
+      rdr::U8* buffer;
+
+      rgb[0] = cursor->foreRed;
+      rgb[1] = cursor->foreGreen;
+      rgb[2] = cursor->foreBlue;
+      getPF().bufferFromRGB(fg, rgb, 1);
+
+      rgb[0] = cursor->backRed;
+      rgb[1] = cursor->backGreen;
+      rgb[2] = cursor->backBlue;
+      getPF().bufferFromRGB(bg, rgb, 1);
 
       int xMaskBytesPerRow = BitmapBytePad(w);
 
+      buffer = cursorData;
+
       for (int y = 0; y < h; y++) {
         for (int x = 0; x < w; x++) {
+          rdr::U8 *pixel;
           int byte = y * xMaskBytesPerRow + x / 8;
 #if (BITMAP_BIT_ORDER == MSBFirst)
           int bit = 7 - x % 8;
 #else
           int bit = x % 8;
 #endif
-          switch (getPF().bpp) {
-          case 8:
-            ((rdr::U8*)cursorData)[y * w + x]
-              = (cursor->bits->source[byte] & (1 << bit)) ? fg.pixel : bg.pixel;
-            break;
-          case 16:
-            ((rdr::U16*)cursorData)[y * w + x]
-              = (cursor->bits->source[byte] & (1 << bit)) ? fg.pixel : bg.pixel;
-            break;
-          case 32:
-            ((rdr::U32*)cursorData)[y * w + x]
-              = (cursor->bits->source[byte] & (1 << bit)) ? fg.pixel : bg.pixel;
-            break;
-          }
+
+          if (cursor->bits->source[byte] & (1 << bit))
+            pixel = fg;
+          else
+            pixel = bg;
+
+          memcpy(buffer, pixel, getPF().bpp/8);
+          buffer += getPF().bpp/8;
         }
       }
 
@@ -1109,28 +1049,6 @@ int XserverDesktop::getStride() const
   return stride_;
 }
 
-void XserverDesktop::lookup(int index, int* r, int* g, int* b)
-{
-  if ((cmap->c_class | DynamicClass) == DirectColor) {
-    VisualPtr v = cmap->pVisual;
-    *r = cmap->red  [(index & v->redMask  ) >> v->offsetRed  ].co.local.red;
-    *g = cmap->green[(index & v->greenMask) >> v->offsetGreen].co.local.green;
-    *b = cmap->blue [(index & v->blueMask ) >> v->offsetBlue ].co.local.blue;
-  } else {
-    EntryPtr pent;
-    pent = (EntryPtr)&cmap->red[index];
-    if (pent->fShared) {
-      *r = pent->co.shco.red->color;
-      *g = pent->co.shco.green->color;
-      *b = pent->co.shco.blue->color;
-    } else {
-      *r = pent->co.local.red;
-      *g = pent->co.local.green;
-      *b = pent->co.local.blue;
-    }
-  }
-}
-
 void XserverDesktop::keyEvent(rdr::U32 keysym, bool down)
 {
 	if (down)
diff --git a/unix/xserver/hw/vnc/XserverDesktop.h b/unix/xserver/hw/vnc/XserverDesktop.h
index fb247b04..fa03d8ab 100644
--- a/unix/xserver/hw/vnc/XserverDesktop.h
+++ b/unix/xserver/hw/vnc/XserverDesktop.h
@@ -54,7 +54,7 @@ namespace rfb {
 namespace network { class TcpListener; class Socket; }
 
 class XserverDesktop : public rfb::SDesktop, public rfb::FullFramePixelBuffer,
-                       public rfb::ColourMap, public rdr::Substitutor,
+                       public rdr::Substitutor,
                        public rfb::VNCServerST::QueryConnectionHandler {
 public:
 
@@ -65,13 +65,10 @@ public:
   virtual ~XserverDesktop();
 
   // methods called from X server code
-  void serverReset(ScreenPtr pScreen);
   void blockUpdates();
   void unblockUpdates();
   void setFramebuffer(int w, int h, void* fbptr, int stride);
   void refreshScreenLayout();
-  void setColormap(ColormapPtr cmap);
-  void setColourMapEntries(ColormapPtr pColormap, int ndef, xColorItem* pdef);
   void bell();
   void serverCutText(const char* str, int len);
   void setDesktopName(const char* name);
@@ -114,9 +111,6 @@ public:
   virtual void grabRegion(const rfb::Region& r);
   virtual int getStride() const;
 
-  // rfb::ColourMap callbacks
-  virtual void lookup(int index, int* r, int* g, int* b);
-
   // rdr::Substitutor callback
   virtual char* substitute(const char* varName);
 
@@ -126,7 +120,6 @@ public:
                                                         char** reason);
 
 private:
-  void setColourMapEntries(int firstColour, int nColours);
   rfb::ScreenSet computeScreenLayout();
 #ifdef RANDR
   RRModePtr findRandRMode(RROutputPtr output, int width, int height);
@@ -138,7 +131,6 @@ private:
   rfb::HTTPServer* httpServer;
   network::TcpListener* listener;
   network::TcpListener* httpListener;
-  ColormapPtr cmap;
   int stride_;
   bool deferredUpdateTimerSet;
   bool grabbing;
diff --git a/unix/xserver/hw/vnc/vncExtInit.cc b/unix/xserver/hw/vnc/vncExtInit.cc
index a9fd0e9f..732fa69b 100644
--- a/unix/xserver/hw/vnc/vncExtInit.cc
+++ b/unix/xserver/hw/vnc/vncExtInit.cc
@@ -168,8 +168,10 @@ static PixelFormat vncGetPixelFormat(ScreenPtr pScreen)
 
   trueColour = (vis->c_class == TrueColor);
 
-  if (!trueColour && bpp != 8)
-    throw rfb::Exception("X server uses unsupported visual");
+  if (!trueColour) {
+    fprintf(stderr,"pseudocolour not supported");
+    abort();
+  }
 
   redShift   = ffs(vis->redMask) - 1;
   greenShift = ffs(vis->greenMask) - 1;
@@ -266,9 +268,6 @@ void vncExtensionInit()
           desktop[scr]->addClient(sock, false);
           vlog.info("added inetd sock");
         }
-
-      } else {
-        desktop[scr]->serverReset(screenInfo.screens[scr]);
       }
 
       vncHooksInit(screenInfo.screens[scr], desktop[scr]);
diff --git a/unix/xserver/hw/vnc/vncHooks.cc b/unix/xserver/hw/vnc/vncHooks.cc
index 6756da7a..94693872 100644
--- a/unix/xserver/hw/vnc/vncHooks.cc
+++ b/unix/xserver/hw/vnc/vncHooks.cc
@@ -75,8 +75,6 @@ typedef struct {
 #if XORG < 110
   RestoreAreasProcPtr          RestoreAreas;
 #endif
-  InstallColormapProcPtr       InstallColormap;
-  StoreColorsProcPtr           StoreColors;
   DisplayCursorProcPtr         DisplayCursor;
   ScreenBlockHandlerProcPtr    BlockHandler;
 #ifdef RENDER
@@ -132,9 +130,6 @@ static void vncHooksClearToBackground(WindowPtr pWin, int x, int y, int w,
 #if XORG < 110
 static RegionPtr vncHooksRestoreAreas(WindowPtr pWin, RegionPtr prgnExposed);
 #endif
-static void vncHooksInstallColormap(ColormapPtr pColormap);
-static void vncHooksStoreColors(ColormapPtr pColormap, int ndef,
-                                xColorItem* pdef);
 static Bool vncHooksDisplayCursor(
 #if XORG >= 16
 				  DeviceIntPtr pDev,
@@ -289,8 +284,6 @@ Bool vncHooksInit(ScreenPtr pScreen, XserverDesktop* desktop)
 #if XORG < 110
   vncHooksScreen->RestoreAreas = pScreen->RestoreAreas;
 #endif
-  vncHooksScreen->InstallColormap = pScreen->InstallColormap;
-  vncHooksScreen->StoreColors = pScreen->StoreColors;
   vncHooksScreen->DisplayCursor = pScreen->DisplayCursor;
   vncHooksScreen->BlockHandler = pScreen->BlockHandler;
 #ifdef RENDER
@@ -318,8 +311,6 @@ Bool vncHooksInit(ScreenPtr pScreen, XserverDesktop* desktop)
 #if XORG < 110
   pScreen->RestoreAreas = vncHooksRestoreAreas;
 #endif
-  pScreen->InstallColormap = vncHooksInstallColormap;
-  pScreen->StoreColors = vncHooksStoreColors;
   pScreen->DisplayCursor = vncHooksDisplayCursor;
   pScreen->BlockHandler = vncHooksBlockHandler;
 #ifdef RENDER
@@ -381,8 +372,6 @@ static Bool vncHooksCloseScreen(ScreenPtr pScreen_)
 #if XORG < 110
   pScreen->RestoreAreas = vncHooksScreen->RestoreAreas;
 #endif
-  pScreen->InstallColormap = vncHooksScreen->InstallColormap;
-  pScreen->StoreColors = vncHooksScreen->StoreColors;
   pScreen->DisplayCursor = vncHooksScreen->DisplayCursor;
   pScreen->BlockHandler = vncHooksScreen->BlockHandler;
 #ifdef RENDER
@@ -512,33 +501,6 @@ static RegionPtr vncHooksRestoreAreas(WindowPtr pWin, RegionPtr pRegion)
 }
 #endif
 
-// InstallColormap - get the new colormap
-
-static void vncHooksInstallColormap(ColormapPtr pColormap)
-{
-  SCREEN_UNWRAP(pColormap->pScreen, InstallColormap);
-
-  (*pScreen->InstallColormap) (pColormap);
-
-  vncHooksScreen->desktop->setColormap(pColormap);
-
-  SCREEN_REWRAP(InstallColormap);
-}
-
-// StoreColors - get the colormap changes
-
-static void vncHooksStoreColors(ColormapPtr pColormap, int ndef,
-                                xColorItem* pdef)
-{
-  SCREEN_UNWRAP(pColormap->pScreen, StoreColors);
-
-  (*pScreen->StoreColors) (pColormap, ndef, pdef);
-
-  vncHooksScreen->desktop->setColourMapEntries(pColormap, ndef, pdef);
-
-  SCREEN_REWRAP(StoreColors);
-}
-
 // DisplayCursor - get the cursor shape
 
 static Bool vncHooksDisplayCursor(
diff --git a/vncviewer/CConn.cxx b/vncviewer/CConn.cxx
index 789cf09e..d7f57b5f 100644
--- a/vncviewer/CConn.cxx
+++ b/vncviewer/CConn.cxx
@@ -65,8 +65,9 @@ static const PixelFormat verylowColourPF(8, 3,false, true,
 // 64 colours (2 bits per component)
 static const PixelFormat lowColourPF(8, 6, false, true,
                                      3, 3, 3, 4, 2, 0);
-// 256 colours (palette)
-static const PixelFormat mediumColourPF(8, 8, false, false);
+// 256 colours (2-3 bits per component)
+static const PixelFormat mediumColourPF(8, 8, false, true,
+                                        7, 7, 3, 5, 2, 0);
 
 CConn::CConn(const char* vncServerName, network::Socket* socket=NULL)
   : serverHost(0), serverPort(0), desktop(NULL),
@@ -342,7 +343,7 @@ void CConn::framebufferUpdateEnd()
 
 void CConn::setColourMapEntries(int firstColour, int nColours, rdr::U16* rgbs)
 {
-  desktop->setColourMapEntries(firstColour, nColours, rgbs);
+  vlog.error("Invalid SetColourMapEntries from server!");
 }
 
 void CConn::bell()
diff --git a/vncviewer/DesktopWindow.cxx b/vncviewer/DesktopWindow.cxx
index 2a2f8734..3e9b57e6 100644
--- a/vncviewer/DesktopWindow.cxx
+++ b/vncviewer/DesktopWindow.cxx
@@ -216,12 +216,6 @@ void DesktopWindow::setName(const char *name)
 }
 
 
-void DesktopWindow::setColourMapEntries(int firstColour, int nColours,
-                                        rdr::U16* rgbs)
-{
-  viewport->setColourMapEntries(firstColour, nColours, rgbs);
-}
-
 void DesktopWindow::fillRect(const rfb::Rect& r, rfb::Pixel pix) {
   viewport->fillRect(r, pix);
 }
diff --git a/vncviewer/DesktopWindow.h b/vncviewer/DesktopWindow.h
index 06f25f55..08a66522 100644
--- a/vncviewer/DesktopWindow.h
+++ b/vncviewer/DesktopWindow.h
@@ -50,8 +50,6 @@ public:
   // Methods forwarded from CConn
   void setName(const char *name);
 
-  void setColourMapEntries(int firstColour, int nColours, rdr::U16* rgbs);
-
   void fillRect(const rfb::Rect& r, rfb::Pixel pix);
   void imageRect(const rfb::Rect& r, void* pixels);
   void copyRect(const rfb::Rect& r, int srcX, int srcY);
diff --git a/vncviewer/Viewport.cxx b/vncviewer/Viewport.cxx
index 0ac76024..a7296e9a 100644
--- a/vncviewer/Viewport.cxx
+++ b/vncviewer/Viewport.cxx
@@ -87,7 +87,7 @@ enum { ID_EXIT, ID_FULLSCREEN, ID_RESIZE,
 
 Viewport::Viewport(int w, int h, const rfb::PixelFormat& serverPF, CConn* cc_)
   : Fl_Widget(0, 0, w, h), cc(cc_), frameBuffer(NULL), pixelTrans(NULL),
-    colourMapChange(false), lastPointerPos(0, 0), lastButtonMask(0),
+    lastPointerPos(0, 0), lastButtonMask(0),
     cursor(NULL), menuCtrlKey(false), menuAltKey(false)
 {
 // FLTK STR #2599 must be fixed for proper dead keys support
@@ -183,11 +183,11 @@ void Viewport::setServerPF(const rfb::PixelFormat& pf)
     PixelFormat fake_pf(pf.bpp, pf.depth, nativeBigEndian, pf.trueColour,
                         pf.redMax, pf.greenMax, pf.blueMax,
                         pf.redShift, pf.greenShift, pf.blueShift);
-    pixelTrans->init(fake_pf, &colourMap, getPreferredPF());
+    pixelTrans->init(fake_pf, getPreferredPF());
     return;
   }
 
-  pixelTrans->init(pf, &colourMap, getPreferredPF());
+  pixelTrans->init(pf, getPreferredPF());
 }
 
 
@@ -197,21 +197,6 @@ const rfb::PixelFormat &Viewport::getPreferredPF()
 }
 
 
-// setColourMapEntries() changes some of the entries in the colourmap.
-// We don't actually act on these changes until we need to. This is
-// because recalculating the internal translation table can be expensive.
-// This also solves the issue of silly servers sending colour maps in
-// multiple pieces.
-void Viewport::setColourMapEntries(int firstColour, int nColours,
-                                   rdr::U16* rgbs)
-{
-  for (int i = 0; i < nColours; i++)
-    colourMap.set(firstColour+i, rgbs[i*3], rgbs[i*3+1], rgbs[i*3+2]);
-
-  colourMapChange = true;
-}
-
-
 // Copy the areas of the framebuffer that have been changed (damaged)
 // to the displayed window.
 
@@ -230,8 +215,6 @@ void Viewport::updateWindow()
 void Viewport::fillRect(const rfb::Rect& r, rfb::Pixel pix) {
   if (pixelTrans) {
     rfb::Pixel pix2;
-    if (colourMapChange)
-      commitColourMap();
     pixelTrans->translatePixels(&pix, &pix2, 1);
     pix = pix2;
   }
@@ -242,8 +225,6 @@ void Viewport::fillRect(const rfb::Rect& r, rfb::Pixel pix) {
 
 void Viewport::imageRect(const rfb::Rect& r, void* pixels) {
   if (pixelTrans) {
-    if (colourMapChange)
-      commitColourMap();
     pixelTrans->translateRect(pixels, r.width(),
                               rfb::Rect(0, 0, r.width(), r.height()),
                               frameBuffer->data, frameBuffer->getStride(),
@@ -327,7 +308,7 @@ void Viewport::setCursor(int width, int height, const Point& hotspot,
       m_width = (width+7)/8;
       for (int y = 0;y < height;y++) {
         for (int x = 0;x < width;x++) {
-          pf->rgbFromBuffer(o, i, 1, &colourMap);
+          pf->rgbFromBuffer(o, i, 1);
 
           if (m[(m_width*y)+(x/8)] & 0x80>>(x%8))
             o[3] = 255;
@@ -529,19 +510,6 @@ void Viewport::handleUpdateTimeout(void *data)
 }
 
 
-void Viewport::commitColourMap()
-{
-  if (pixelTrans == NULL)
-    return;
-  if (!colourMapChange)
-    return;
-
-  colourMapChange = false;
-
-  pixelTrans->setColourMapEntries(0, 0);
-}
-
-
 void Viewport::handleClipboardChange(int source, void *data)
 {
   Viewport *self = (Viewport *)data;
diff --git a/vncviewer/Viewport.h b/vncviewer/Viewport.h
index e83a14ba..7859db6d 100644
--- a/vncviewer/Viewport.h
+++ b/vncviewer/Viewport.h
@@ -26,7 +26,6 @@
 
 #include <rfb/Region.h>
 #include <rfb/Pixel.h>
-#include <rfb/ColourMap.h>
 
 class Fl_Menu_Button;
 class Fl_RGB_Image;
@@ -52,8 +51,6 @@ public:
 
   // Methods forwarded from CConn
 
-  void setColourMapEntries(int firstColour, int nColours, rdr::U16* rgbs);
-
   void fillRect(const rfb::Rect& r, rfb::Pixel pix);
   void imageRect(const rfb::Rect& r, void* pixels);
   void copyRect(const rfb::Rect& r, int srcX, int srcY);
@@ -77,8 +74,6 @@ private:
 
   static void handleUpdateTimeout(void *data);
 
-  void commitColourMap();
-
   static void handleClipboardChange(int source, void *data);
 
   void handlePointerEvent(const rfb::Point& pos, int buttonMask);
@@ -98,11 +93,7 @@ private:
   CConn* cc;
 
   PlatformPixelBuffer* frameBuffer;
-
   rfb::PixelTransformer *pixelTrans;
-  rfb::SimpleColourMap colourMap;
-  bool colourMapChange;
-
   rfb::Region damage;
 
   rfb::Point lastPointerPos;
diff --git a/vncviewer/Win32PixelBuffer.cxx b/vncviewer/Win32PixelBuffer.cxx
index 626bb967..4ee15ce5 100644
--- a/vncviewer/Win32PixelBuffer.cxx
+++ b/vncviewer/Win32PixelBuffer.cxx
@@ -40,7 +40,7 @@ static rfb::LogWriter vlog("PlatformPixelBuffer");
 PlatformPixelBuffer::PlatformPixelBuffer(int width, int height) :
   FullFramePixelBuffer(rfb::PixelFormat(32, 24, false, true,
                                         255, 255, 255, 16, 8, 0),
-                       width, height, NULL, NULL),
+                       width, height, NULL),
   bitmap(NULL)
 {
   BITMAPINFOHEADER bih;
diff --git a/vncviewer/X11PixelBuffer.cxx b/vncviewer/X11PixelBuffer.cxx
index 548591e1..f834003e 100644
--- a/vncviewer/X11PixelBuffer.cxx
+++ b/vncviewer/X11PixelBuffer.cxx
@@ -94,7 +94,7 @@ static PixelFormat display_pf()
 }
 
 PlatformPixelBuffer::PlatformPixelBuffer(int width, int height) :
-  FullFramePixelBuffer(display_pf(), width, height, NULL, NULL),
+  FullFramePixelBuffer(display_pf(), width, height, NULL),
   shminfo(NULL), xim(NULL)
 {
   // Might not be open at this point
diff --git a/win/rfb_win32/DIBSectionBuffer.cxx b/win/rfb_win32/DIBSectionBuffer.cxx
index 0c266b00..e2b0d641 100644
--- a/win/rfb_win32/DIBSectionBuffer.cxx
+++ b/win/rfb_win32/DIBSectionBuffer.cxx
@@ -31,13 +31,11 @@ static LogWriter vlog("DIBSectionBuffer");
 DIBSectionBuffer::DIBSectionBuffer(HWND window_)
   : bitmap(0), window(window_), device(0) {
   memset(&format, 0, sizeof(format));
-  memset(palette, 0, sizeof(palette));
 }
 
 DIBSectionBuffer::DIBSectionBuffer(HDC device_)
   : bitmap(0), window(0), device(device_) {
   memset(&format, 0, sizeof(format));
-  memset(palette, 0, sizeof(palette));
 }
 
 DIBSectionBuffer::~DIBSectionBuffer() {
@@ -51,19 +49,10 @@ void DIBSectionBuffer::setPF(const PixelFormat& pf) {
     vlog.debug("pixel format unchanged by setPF()");
     return;
   }
+  if (!pf.trueColour)
+    throw rfb::Exception("palette format not supported");
   format = pf;
   recreateBuffer();
-  if ((pf.bpp <= 8) && pf.trueColour) {
-    vlog.info("creating %d-bit TrueColour palette", pf.depth);
-    for (int i=0; i < (1<<(pf.depth)); i++) {
-      rdr::U16 r, g, b;
-      pf.rgbFromPixel(i, NULL, &r, &g, &b);
-      palette[i].r = r;
-      palette[i].g = g;
-      palette[i].b = b;
-    }
-    refreshPalette();
-  }
 }
 
 void DIBSectionBuffer::setSize(int w, int h) {
@@ -77,20 +66,6 @@ void DIBSectionBuffer::setSize(int w, int h) {
 }
 
 
-// * copyPaletteToDIB MUST NEVER be called on a truecolour DIB! *
-
-void copyPaletteToDIB(Colour palette[256], HDC wndDC, HBITMAP dib) {
-  BitmapDC dibDC(wndDC, dib);
-  RGBQUAD rgb[256];
-  for (unsigned int i=0;i<256;i++) {
-    rgb[i].rgbRed = palette[i].r >> 8;
-    rgb[i].rgbGreen = palette[i].g >> 8;
-    rgb[i].rgbBlue = palette[i].b >> 8;
-  }
-  if (!SetDIBColorTable(dibDC, 0, 256, (RGBQUAD*) rgb))
-    throw rdr::SystemException("unable to SetDIBColorTable", GetLastError());
-}
-
 inline void initMaxAndShift(DWORD mask, int* max, int* shift) {
   for ((*shift) = 0; (mask & 1) == 0; (*shift)++) mask >>= 1;
   (*max) = (rdr::U16)mask;
@@ -103,9 +78,7 @@ void DIBSectionBuffer::recreateBuffer() {
   if (width_ && height_ && (format.depth != 0)) {
     BitmapInfo bi;
     memset(&bi, 0, sizeof(bi));
-    // *** wrong?
-    UINT iUsage = format.trueColour ? DIB_RGB_COLORS : DIB_PAL_COLORS;
-    // ***
+    UINT iUsage = DIB_RGB_COLORS;
     bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
     bi.bmiHeader.biBitCount = format.bpp;
     bi.bmiHeader.biSizeImage = (format.bpp / 8) * width_ * height_;
@@ -140,15 +113,11 @@ void DIBSectionBuffer::recreateBuffer() {
 
     // Copy the contents across
     if (device) {
-      if (format.bpp <= 8)
-        copyPaletteToDIB(palette, device, new_bitmap);
       BitmapDC src_dev(device, bitmap);
       BitmapDC dest_dev(device, new_bitmap);
       BitBlt(dest_dev, 0, 0, width_, height_, src_dev, 0, 0, SRCCOPY);
     } else {
       WindowDC wndDC(window);
-      if (format.bpp <= 8)
-        copyPaletteToDIB(palette, wndDC, new_bitmap);
       BitmapDC src_dev(wndDC, bitmap);
       BitmapDC dest_dev(wndDC, new_bitmap);
       BitBlt(dest_dev, 0, 0, width_, height_, src_dev, 0, 0, SRCCOPY);
@@ -164,7 +133,6 @@ void DIBSectionBuffer::recreateBuffer() {
 
   if (new_bitmap) {
     int bpp, depth;
-    bool trueColour;
     int redMax, greenMax, blueMax;
     int redShift, greenShift, blueShift;
 
@@ -189,46 +157,24 @@ void DIBSectionBuffer::recreateBuffer() {
 
     // Calculate the PixelFormat for the DIB
     bpp = depth = ds.dsBm.bmBitsPixel;
-    trueColour = format.trueColour || format.bpp > 8;
-
-    if (trueColour) {
-      // Get the truecolour format used by the DIBSection
-      initMaxAndShift(ds.dsBitfields[0], &redMax, &redShift);
-      initMaxAndShift(ds.dsBitfields[1], &greenMax, &greenShift);
-      initMaxAndShift(ds.dsBitfields[2], &blueMax, &blueShift);
-
-      // Calculate the effective depth
-      depth = 0;
-      Pixel bits = ds.dsBitfields[0] | ds.dsBitfields[1] | ds.dsBitfields[2];
-      while (bits) {
-        depth++;
-        bits = bits >> 1;
-      }
-      if (depth > bpp)
-        throw Exception("Bad DIBSection format (depth exceeds bpp)");
+
+    // Get the truecolour format used by the DIBSection
+    initMaxAndShift(ds.dsBitfields[0], &redMax, &redShift);
+    initMaxAndShift(ds.dsBitfields[1], &greenMax, &greenShift);
+    initMaxAndShift(ds.dsBitfields[2], &blueMax, &blueShift);
+
+    // Calculate the effective depth
+    depth = 0;
+    Pixel bits = ds.dsBitfields[0] | ds.dsBitfields[1] | ds.dsBitfields[2];
+    while (bits) {
+      depth++;
+      bits = bits >> 1;
     }
+    if (depth > bpp)
+      throw Exception("Bad DIBSection format (depth exceeds bpp)");
 
-    format = PixelFormat(bpp, depth, false, trueColour,
+    format = PixelFormat(bpp, depth, false, true,
                          redMax, greenMax, blueMax,
                          redShift, greenShift, blueShift);
-
-    if (!trueColour) {
-      // Set the DIBSection's palette
-      refreshPalette();
-    }
   }
 }
-
-void DIBSectionBuffer::refreshPalette() {
-  if (format.bpp > 8) {
-    vlog.error("refresh palette called for truecolor DIB");
-    return;
-  }
-  vlog.debug("refreshing palette");
-  if (device)
-    copyPaletteToDIB(palette, device, bitmap);
-  else
-    copyPaletteToDIB(palette, WindowDC(window), bitmap);
-}
-
-
diff --git a/win/rfb_win32/DIBSectionBuffer.h b/win/rfb_win32/DIBSectionBuffer.h
index ad1a310c..1a9ef134 100644
--- a/win/rfb_win32/DIBSectionBuffer.h
+++ b/win/rfb_win32/DIBSectionBuffer.h
@@ -28,7 +28,6 @@
 #include <windows.h>
 #include <rfb/PixelBuffer.h>
 #include <rfb/Region.h>
-#include <rfb/ColourMap.h>
 #include <rfb/Exception.h>
 
 namespace rfb {
@@ -39,7 +38,7 @@ namespace rfb {
     // -=- DIBSectionBuffer
     //
 
-    class DIBSectionBuffer : public FullFramePixelBuffer, ColourMap {
+    class DIBSectionBuffer : public FullFramePixelBuffer {
     public:
       DIBSectionBuffer(HWND window);
       DIBSectionBuffer(HDC device);
@@ -50,29 +49,11 @@ namespace rfb {
 
       virtual int getStride() const {return stride;}
 
-      virtual ColourMap* getColourMap() const {return (ColourMap*)this;}
-
-      // - ColourMap interface
-      virtual void lookup(int index, int* r, int *g, int* b) {
-        *r = palette[index].r;
-        *g = palette[index].g;
-        *b = palette[index].b;
-      }
-  
-      // Custom colourmap interface
-      void setColour(int index, int r, int g, int b) {
-        palette[index].r = r;
-        palette[index].g = g;
-        palette[index].b = b;
-      }
-      void refreshPalette();
-
       // *** virtual void copyRect(const Rect &dest, const Point &move_by_delta);
     public:
       HBITMAP bitmap;
     protected:
       void recreateBuffer();
-      Colour palette[256];
       int stride;
       HWND window;
       HDC device;
diff --git a/win/rfb_win32/DeviceFrameBuffer.cxx b/win/rfb_win32/DeviceFrameBuffer.cxx
index cc9bbcad..33b1be5a 100644
--- a/win/rfb_win32/DeviceFrameBuffer.cxx
+++ b/win/rfb_win32/DeviceFrameBuffer.cxx
@@ -79,10 +79,6 @@ DeviceFrameBuffer::DeviceFrameBuffer(HDC deviceContext, const Rect& wRect)
 
   // Configure the cursor buffer
   cursorBm.setPF(format);
-
-  // Set up a palette if required
-  if (!format.trueColour)
-    updateColourMap();
 }
 
 DeviceFrameBuffer::~DeviceFrameBuffer() {
@@ -134,37 +130,6 @@ DeviceFrameBuffer::grabRegion(const Region &rgn) {
 }
 
 
-void copyDevicePaletteToDIB(HDC dc, DIBSectionBuffer* dib) {
-  // - Fetch the system palette for the framebuffer
-  PALETTEENTRY syspalette[256];
-  UINT entries = ::GetSystemPaletteEntries(dc, 0, 256, syspalette);
-
-  if (entries == 0) {
-    vlog.info("resorting to standard 16 color palette");
-    for (unsigned int i=0;i<256;i++) {
-      int v = (i%16) >= 8 ? 127 : 255;
-      syspalette[i].peRed = i & 1 ? v : 0;
-      syspalette[i].peGreen = i & 2 ? v : 0;
-      syspalette[i].peBlue = i & 4 ? v : 0;
-    }
-  } else {
-    vlog.info("framebuffer has %u palette entries", entries);
-  }
-
-  // - Update the bitmap's stored copy of the palette
-  for (unsigned int i=0;i<256;i++) {
-    int r, g, b;
-    r = (syspalette[i].peRed << 8) + 0x80;
-    g = (syspalette[i].peGreen << 8) + 0x80;
-    b = (syspalette[i].peBlue << 8) + 0x80;
-    dib->setColour(i, r, g, b);
-  }
-
-  // - Update the DIB section to use the palette
-  dib->refreshPalette();
-}
-
-
 void DeviceFrameBuffer::setCursor(HCURSOR hCursor, VNCServer* server)
 {
   // - If hCursor is null then there is no cursor - clear the old one
@@ -211,10 +176,6 @@ void DeviceFrameBuffer::setCursor(HCURSOR hCursor, VNCServer* server)
     // Configure the cursor bitmap
     cursorBm.setSize(cursor.width(), cursor.height());
 
-    // Copy the palette into it if required
-    if (format.bpp <= 8)
-      copyDevicePaletteToDIB(device, &cursorBm);
-
     // Draw the cursor into the bitmap
     BitmapDC dc(device, cursorBm.bitmap);
     if (!DrawIconEx(dc, 0, 0, hCursor, 0, 0, 0, NULL, DI_NORMAL | DI_COMPAT))
@@ -231,7 +192,7 @@ void DeviceFrameBuffer::setCursor(HCURSOR hCursor, VNCServer* server)
 
     bool doOutline = false;
     if (!iconInfo.hbmColor) {
-      Pixel xorColour = format.pixelFromRGB((rdr::U16)0, (rdr::U16)0, (rdr::U16)0, cursorBm.getColourMap());
+      Pixel xorColour = format.pixelFromRGB((rdr::U16)0, (rdr::U16)0, (rdr::U16)0);
       for (int y = 0; y < cursor.height(); y++) {
         for (int x = 0; x < cursor.width(); x++) {
           int byte = y * maskInfo.bmWidthBytes + x / 8;
@@ -269,7 +230,7 @@ void DeviceFrameBuffer::setCursor(HCURSOR hCursor, VNCServer* server)
     if (doOutline) {
       vlog.debug("drawing cursor outline!");
       memcpy(cursor.data, cursorBm.data, cursor.dataLen());
-      cursor.drawOutline(format.pixelFromRGB((rdr::U16)0xffff, (rdr::U16)0xffff, (rdr::U16)0xffff, cursorBm.getColourMap()));
+      cursor.drawOutline(format.pixelFromRGB((rdr::U16)0xffff, (rdr::U16)0xffff, (rdr::U16)0xffff));
       memcpy(cursorBm.data, cursor.data, cursor.dataLen());
     }
 
@@ -279,10 +240,3 @@ void DeviceFrameBuffer::setCursor(HCURSOR hCursor, VNCServer* server)
     vlog.error("%s", e.str());
   }
 }
-
-
-void
-DeviceFrameBuffer::updateColourMap() {
-  if (!format.trueColour)
-    copyDevicePaletteToDIB(device, this);
-}
diff --git a/win/rfb_win32/DeviceFrameBuffer.h b/win/rfb_win32/DeviceFrameBuffer.h
index 7718c339..8e280f8a 100644
--- a/win/rfb_win32/DeviceFrameBuffer.h
+++ b/win/rfb_win32/DeviceFrameBuffer.h
@@ -79,7 +79,6 @@ namespace rfb {
       // - DeviceFrameBuffer specific methods
 
       void setCursor(HCURSOR c, VNCServer* server);
-      void updateColourMap();
 
       // Set whether grabRect should ignore errors or throw exceptions
       // Only set this if you are sure you'll capture the errors some other way!
diff --git a/win/rfb_win32/SDisplay.cxx b/win/rfb_win32/SDisplay.cxx
index 6d0c924f..26a7bbce 100644
--- a/win/rfb_win32/SDisplay.cxx
+++ b/win/rfb_win32/SDisplay.cxx
@@ -350,12 +350,6 @@ SDisplay::notifyDisplayEvent(WMMonitor::Notifier::DisplayEventType evt) {
     vlog.debug("desktop format changed");
     recreatePixelBuffer();
     break;
-  case WMMonitor::Notifier::DisplayColourMapChanged:
-    vlog.debug("desktop colormap changed");
-    pb->updateColourMap();
-    if (server)
-      server->setColourMapEntries();
-    break;
   default:
     vlog.error("unknown display event received");
   }
diff --git a/win/rfb_win32/WMNotifier.cxx b/win/rfb_win32/WMNotifier.cxx
index 20a5445f..159dacaf 100644
--- a/win/rfb_win32/WMNotifier.cxx
+++ b/win/rfb_win32/WMNotifier.cxx
@@ -45,12 +45,6 @@ WMMonitor::processMessage(UINT msg, WPARAM wParam, LPARAM lParam) {
       notifier->notifyDisplayEvent(Notifier::DisplaySizeChanged);
       notifier->notifyDisplayEvent(Notifier::DisplayPixelFormatChanged);
     }
-    break;
-	case WM_SYSCOLORCHANGE:
-  case WM_PALETTECHANGED:
-    if (notifier) {
-      notifier->notifyDisplayEvent(Notifier::DisplayColourMapChanged);
-    }
     break;
   };
   return MsgWindow::processMessage(msg, wParam, lParam);
diff --git a/win/rfb_win32/WMNotifier.h b/win/rfb_win32/WMNotifier.h
index a7609642..ada45d09 100644
--- a/win/rfb_win32/WMNotifier.h
+++ b/win/rfb_win32/WMNotifier.h
@@ -44,7 +44,7 @@ namespace rfb {
 
       class Notifier {
       public:
-        typedef enum {DisplaySizeChanged, DisplayColourMapChanged,
+        typedef enum {DisplaySizeChanged,
           DisplayPixelFormatChanged} DisplayEventType;
         virtual void notifyDisplayEvent(DisplayEventType evt) = 0;
       };