Merge commit 'origin/gallium-0.1' into gallium-0.2
[mesa.git] / src / mesa / main / colortab.c
index 04625c6c826d2e77e55b46e72f81883c3fb632b6..97120398f9b616453b485e40b32d20c7c4ee127f 100644 (file)
@@ -1,10 +1,8 @@
-/* $Id: colortab.c,v 1.47 2003/01/21 21:47:45 brianp Exp $ */
-
 /*
  * Mesa 3-D graphics library
- * Version:  5.1
+ * Version:  7.1
  *
- * Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
 
 
 #include "glheader.h"
-#include "imports.h"
+#include "bufferobj.h"
 #include "colortab.h"
 #include "context.h"
 #include "image.h"
 #include "macros.h"
-#include "mmath.h"
 #include "state.h"
+#include "teximage.h"
 
 
-/*
+/**
  * Given an internalFormat token passed to glColorTable,
  * return the corresponding base format.
  * Return -1 if invalid token.
@@ -94,39 +92,22 @@ base_colortab_format( GLenum format )
 }
 
 
-void
-_mesa_init_colortable( struct gl_color_table *p )
-{
-   p->FloatTable = GL_FALSE;
-   p->Table = NULL;
-   p->Size = 0;
-   p->IntFormat = GL_RGBA;
-}
 
-
-
-void
-_mesa_free_colortable_data( struct gl_color_table *p )
-{
-   if (p->Table) {
-      FREE(p->Table);
-      p->Table = NULL;
-   }
-}
-
-
-/*
+/**
  * Examine table's format and set the component sizes accordingly.
  */
 static void
 set_component_sizes( struct gl_color_table *table )
 {
-   switch (table->Format) {
+   /* assuming the ubyte table */
+   const GLubyte sz = 8;
+
+   switch (table->_BaseFormat) {
       case GL_ALPHA:
          table->RedSize = 0;
          table->GreenSize = 0;
          table->BlueSize = 0;
-         table->AlphaSize = CHAN_BITS;
+         table->AlphaSize = sz;
          table->IntensitySize = 0;
          table->LuminanceSize = 0;
          break;
@@ -136,37 +117,37 @@ set_component_sizes( struct gl_color_table *table )
          table->BlueSize = 0;
          table->AlphaSize = 0;
          table->IntensitySize = 0;
-         table->LuminanceSize = CHAN_BITS;
+         table->LuminanceSize = sz;
          break;
       case GL_LUMINANCE_ALPHA:
          table->RedSize = 0;
          table->GreenSize = 0;
          table->BlueSize = 0;
-         table->AlphaSize = CHAN_BITS;
+         table->AlphaSize = sz;
          table->IntensitySize = 0;
-         table->LuminanceSize = CHAN_BITS;
+         table->LuminanceSize = sz;
          break;
       case GL_INTENSITY:
          table->RedSize = 0;
          table->GreenSize = 0;
          table->BlueSize = 0;
          table->AlphaSize = 0;
-         table->IntensitySize = CHAN_BITS;
+         table->IntensitySize = sz;
          table->LuminanceSize = 0;
          break;
       case GL_RGB:
-         table->RedSize = CHAN_BITS;
-         table->GreenSize = CHAN_BITS;
-         table->BlueSize = CHAN_BITS;
+         table->RedSize = sz;
+         table->GreenSize = sz;
+         table->BlueSize = sz;
          table->AlphaSize = 0;
          table->IntensitySize = 0;
          table->LuminanceSize = 0;
          break;
       case GL_RGBA:
-         table->RedSize = CHAN_BITS;
-         table->GreenSize = CHAN_BITS;
-         table->BlueSize = CHAN_BITS;
-         table->AlphaSize = CHAN_BITS;
+         table->RedSize = sz;
+         table->GreenSize = sz;
+         table->BlueSize = sz;
+         table->AlphaSize = sz;
          table->IntensitySize = 0;
          table->LuminanceSize = 0;
          break;
@@ -177,84 +158,164 @@ set_component_sizes( struct gl_color_table *table )
 
 
 
-void
+/**
+ * Update/replace all or part of a color table.  Helper function
+ * used by _mesa_ColorTable() and _mesa_ColorSubTable().
+ * The table->Table buffer should already be allocated.
+ * \param start first entry to update
+ * \param count number of entries to update
+ * \param format format of user-provided table data
+ * \param type datatype of user-provided table data
+ * \param data user-provided table data
+ * \param [rgba]Scale - RGBA scale factors
+ * \param [rgba]Bias - RGBA bias factors
+ */
+static void
+store_colortable_entries(GLcontext *ctx, struct gl_color_table *table,
+                        GLsizei start, GLsizei count,
+                        GLenum format, GLenum type, const GLvoid *data,
+                        GLfloat rScale, GLfloat rBias,
+                        GLfloat gScale, GLfloat gBias,
+                        GLfloat bScale, GLfloat bBias,
+                        GLfloat aScale, GLfloat aBias)
+{
+   if (ctx->Unpack.BufferObj->Name) {
+      /* Get/unpack the color table data from a PBO */
+      GLubyte *buf;
+      if (!_mesa_validate_pbo_access(1, &ctx->Unpack, count, 1, 1,
+                                     format, type, data)) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glColor[Sub]Table(bad PBO access)");
+         return;
+      }
+      buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+                                              GL_READ_ONLY_ARB,
+                                              ctx->Unpack.BufferObj);
+      if (!buf) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glColor[Sub]Table(PBO mapped)");
+         return;
+      }
+      data = ADD_POINTERS(buf, data);
+   }
+
+
+   {
+      /* convert user-provided data to GLfloat values */
+      GLfloat tempTab[MAX_COLOR_TABLE_SIZE * 4];
+      GLfloat *tableF;
+      GLint i;
+
+      _mesa_unpack_color_span_float(ctx,
+                                    count,         /* number of pixels */
+                                    table->_BaseFormat, /* dest format */
+                                    tempTab,       /* dest address */
+                                    format, type,  /* src format/type */
+                                    data,          /* src data */
+                                    &ctx->Unpack,
+                                    IMAGE_CLAMP_BIT); /* transfer ops */
+
+      /* the destination */
+      tableF = table->TableF;
+
+      /* Apply scale & bias & clamp now */
+      switch (table->_BaseFormat) {
+         case GL_INTENSITY:
+            for (i = 0; i < count; i++) {
+               GLuint j = start + i;
+               tableF[j] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F);
+            }
+            break;
+         case GL_LUMINANCE:
+            for (i = 0; i < count; i++) {
+               GLuint j = start + i;
+               tableF[j] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F);
+            }
+            break;
+         case GL_ALPHA:
+            for (i = 0; i < count; i++) {
+               GLuint j = start + i;
+               tableF[j] = CLAMP(tempTab[i] * aScale + aBias, 0.0F, 1.0F);
+            }
+            break;
+         case GL_LUMINANCE_ALPHA:
+            for (i = 0; i < count; i++) {
+               GLuint j = start + i;
+               tableF[j*2+0] = CLAMP(tempTab[i*2+0] * rScale + rBias, 0.0F, 1.0F);
+               tableF[j*2+1] = CLAMP(tempTab[i*2+1] * aScale + aBias, 0.0F, 1.0F);
+            }
+            break;
+         case GL_RGB:
+            for (i = 0; i < count; i++) {
+               GLuint j = start + i;
+               tableF[j*3+0] = CLAMP(tempTab[i*3+0] * rScale + rBias, 0.0F, 1.0F);
+               tableF[j*3+1] = CLAMP(tempTab[i*3+1] * gScale + gBias, 0.0F, 1.0F);
+               tableF[j*3+2] = CLAMP(tempTab[i*3+2] * bScale + bBias, 0.0F, 1.0F);
+            }
+            break;
+         case GL_RGBA:
+            for (i = 0; i < count; i++) {
+               GLuint j = start + i;
+               tableF[j*4+0] = CLAMP(tempTab[i*4+0] * rScale + rBias, 0.0F, 1.0F);
+               tableF[j*4+1] = CLAMP(tempTab[i*4+1] * gScale + gBias, 0.0F, 1.0F);
+               tableF[j*4+2] = CLAMP(tempTab[i*4+2] * bScale + bBias, 0.0F, 1.0F);
+               tableF[j*4+3] = CLAMP(tempTab[i*4+3] * aScale + aBias, 0.0F, 1.0F);
+            }
+            break;
+         default:
+            _mesa_problem(ctx, "Bad format in store_colortable_entries");
+            return;
+         }
+   }
+
+   /* update the ubyte table */
+   {
+      const GLint comps = _mesa_components_in_format(table->_BaseFormat);
+      const GLfloat *tableF = table->TableF + start * comps;
+      GLubyte *tableUB = table->TableUB + start * comps;
+      GLint i;
+      for (i = 0; i < count * comps; i++) {
+         CLAMPED_FLOAT_TO_UBYTE(tableUB[i], tableF[i]);
+      }
+   }
+
+   if (ctx->Unpack.BufferObj->Name) {
+      ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+                              ctx->Unpack.BufferObj);
+   }
+}
+
+
+
+void GLAPIENTRY
 _mesa_ColorTable( GLenum target, GLenum internalFormat,
                   GLsizei width, GLenum format, GLenum type,
                   const GLvoid *data )
 {
+   static const GLfloat one[4] = { 1.0, 1.0, 1.0, 1.0 };
+   static const GLfloat zero[4] = { 0.0, 0.0, 0.0, 0.0 };
    GET_CURRENT_CONTEXT(ctx);
    struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
    struct gl_texture_object *texObj = NULL;
    struct gl_color_table *table = NULL;
    GLboolean proxy = GL_FALSE;
    GLint baseFormat;
-   GLfloat rScale = 1.0, gScale = 1.0, bScale = 1.0, aScale = 1.0;
-   GLfloat rBias  = 0.0, gBias  = 0.0, bBias  = 0.0, aBias  = 0.0;
-   GLboolean floatTable = GL_FALSE;
+   const GLfloat *scale = one, *bias = zero;
    GLint comps;
+
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* too complex */
 
    switch (target) {
-      case GL_TEXTURE_1D:
-         texObj = texUnit->Current1D;
-         table = &texObj->Palette;
-         break;
-      case GL_TEXTURE_2D:
-         texObj = texUnit->Current2D;
-         table = &texObj->Palette;
-         break;
-      case GL_TEXTURE_3D:
-         texObj = texUnit->Current3D;
-         table = &texObj->Palette;
-         break;
-      case GL_TEXTURE_CUBE_MAP_ARB:
-         if (!ctx->Extensions.ARB_texture_cube_map) {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)");
-            return;
-         }
-         texObj = texUnit->CurrentCubeMap;
-         table = &texObj->Palette;
-         break;
-      case GL_PROXY_TEXTURE_1D:
-         texObj = ctx->Texture.Proxy1D;
-         table = &texObj->Palette;
-         proxy = GL_TRUE;
-         break;
-      case GL_PROXY_TEXTURE_2D:
-         texObj = ctx->Texture.Proxy2D;
-         table = &texObj->Palette;
-         proxy = GL_TRUE;
-         break;
-      case GL_PROXY_TEXTURE_3D:
-         texObj = ctx->Texture.Proxy3D;
-         table = &texObj->Palette;
-         proxy = GL_TRUE;
-         break;
-      case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
-         if (!ctx->Extensions.ARB_texture_cube_map) {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)");
-            return;
-         }
-         texObj = ctx->Texture.ProxyCubeMap;
-         table = &texObj->Palette;
-         break;
       case GL_SHARED_TEXTURE_PALETTE_EXT:
          table = &ctx->Texture.Palette;
          break;
       case GL_COLOR_TABLE:
-         table = &ctx->ColorTable;
-         floatTable = GL_TRUE;
-         rScale = ctx->Pixel.ColorTableScale[0];
-         gScale = ctx->Pixel.ColorTableScale[1];
-         bScale = ctx->Pixel.ColorTableScale[2];
-         aScale = ctx->Pixel.ColorTableScale[3];
-         rBias = ctx->Pixel.ColorTableBias[0];
-         gBias = ctx->Pixel.ColorTableBias[1];
-         bBias = ctx->Pixel.ColorTableBias[2];
-         aBias = ctx->Pixel.ColorTableBias[3];
+         table = &ctx->ColorTable[COLORTABLE_PRECONVOLUTION];
+         scale = ctx->Pixel.ColorTableScale[COLORTABLE_PRECONVOLUTION];
+         bias = ctx->Pixel.ColorTableBias[COLORTABLE_PRECONVOLUTION];
          break;
       case GL_PROXY_COLOR_TABLE:
-         table = &ctx->ProxyColorTable;
+         table = &ctx->ProxyColorTable[COLORTABLE_PRECONVOLUTION];
          proxy = GL_TRUE;
          break;
       case GL_TEXTURE_COLOR_TABLE_SGI:
@@ -262,72 +323,62 @@ _mesa_ColorTable( GLenum target, GLenum internalFormat,
             _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)");
             return;
          }
-         table = &ctx->TextureColorTable;
-         floatTable = GL_TRUE;
-         rScale = ctx->Texture.ColorTableScale[0];
-         gScale = ctx->Texture.ColorTableScale[1];
-         bScale = ctx->Texture.ColorTableScale[2];
-         aScale = ctx->Texture.ColorTableScale[3];
-         rBias = ctx->Texture.ColorTableBias[0];
-         gBias = ctx->Texture.ColorTableBias[1];
-         bBias = ctx->Texture.ColorTableBias[2];
-         aBias = ctx->Texture.ColorTableBias[3];
+         table = &(texUnit->ColorTable);
+         scale = ctx->Pixel.TextureColorTableScale;
+         bias = ctx->Pixel.TextureColorTableBias;
          break;
       case GL_PROXY_TEXTURE_COLOR_TABLE_SGI:
          if (!ctx->Extensions.SGI_texture_color_table) {
             _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)");
             return;
          }
-         table = &ctx->ProxyTextureColorTable;
+         table = &(texUnit->ProxyColorTable);
          proxy = GL_TRUE;
          break;
       case GL_POST_CONVOLUTION_COLOR_TABLE:
-         table = &ctx->PostConvolutionColorTable;
-         floatTable = GL_TRUE;
-         rScale = ctx->Pixel.PCCTscale[0];
-         gScale = ctx->Pixel.PCCTscale[1];
-         bScale = ctx->Pixel.PCCTscale[2];
-         aScale = ctx->Pixel.PCCTscale[3];
-         rBias = ctx->Pixel.PCCTbias[0];
-         gBias = ctx->Pixel.PCCTbias[1];
-         bBias = ctx->Pixel.PCCTbias[2];
-         aBias = ctx->Pixel.PCCTbias[3];
+         table = &ctx->ColorTable[COLORTABLE_POSTCONVOLUTION];
+         scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCONVOLUTION];
+         bias = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCONVOLUTION];
          break;
       case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE:
-         table = &ctx->ProxyPostConvolutionColorTable;
+         table = &ctx->ProxyColorTable[COLORTABLE_POSTCONVOLUTION];
          proxy = GL_TRUE;
          break;
       case GL_POST_COLOR_MATRIX_COLOR_TABLE:
-         table = &ctx->PostColorMatrixColorTable;
-         floatTable = GL_TRUE;
-         rScale = ctx->Pixel.PCMCTscale[0];
-         gScale = ctx->Pixel.PCMCTscale[1];
-         bScale = ctx->Pixel.PCMCTscale[2];
-         aScale = ctx->Pixel.PCMCTscale[3];
-         rBias = ctx->Pixel.PCMCTbias[0];
-         gBias = ctx->Pixel.PCMCTbias[1];
-         bBias = ctx->Pixel.PCMCTbias[2];
-         aBias = ctx->Pixel.PCMCTbias[3];
+         table = &ctx->ColorTable[COLORTABLE_POSTCOLORMATRIX];
+         scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCOLORMATRIX];
+         bias = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCOLORMATRIX];
          break;
       case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE:
-         table = &ctx->ProxyPostColorMatrixColorTable;
+         table = &ctx->ProxyColorTable[COLORTABLE_POSTCOLORMATRIX];
          proxy = GL_TRUE;
          break;
       default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)");
-         return;
+         /* try texture targets */
+         {
+            struct gl_texture_object *texobj
+               = _mesa_select_tex_object(ctx, texUnit, target);
+            if (texobj) {
+               table = &texobj->Palette;
+               proxy = _mesa_is_proxy_texture(target);
+            }
+            else {
+               _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)");
+               return;
+            }
+         }
    }
 
    assert(table);
 
-   if (!_mesa_is_legal_format_and_type(format, type) ||
+   if (!_mesa_is_legal_format_and_type(ctx, format, type) ||
        format == GL_INTENSITY) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glColorTable(format or type)");
       return;
    }
 
    baseFormat = base_colortab_format(internalFormat);
-   if (baseFormat < 0 || baseFormat == GL_COLOR_INDEX) {
+   if (baseFormat < 0) {
       _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(internalFormat)");
       return;
    }
@@ -336,8 +387,8 @@ _mesa_ColorTable( GLenum target, GLenum internalFormat,
       /* error */
       if (proxy) {
          table->Size = 0;
-         table->IntFormat = (GLenum) 0;
-         table->Format = (GLenum) 0;
+         table->InternalFormat = (GLenum) 0;
+         table->_BaseFormat = (GLenum) 0;
       }
       else {
          _mesa_error(ctx, GL_INVALID_VALUE, "glColorTable(width=%d)", width);
@@ -348,8 +399,8 @@ _mesa_ColorTable( GLenum target, GLenum internalFormat,
    if (width > (GLsizei) ctx->Const.MaxColorTableSize) {
       if (proxy) {
          table->Size = 0;
-         table->IntFormat = (GLenum) 0;
-         table->Format = (GLenum) 0;
+         table->InternalFormat = (GLenum) 0;
+         table->_BaseFormat = (GLenum) 0;
       }
       else {
          _mesa_error(ctx, GL_TABLE_TOO_LARGE, "glColorTable(width)");
@@ -358,97 +409,37 @@ _mesa_ColorTable( GLenum target, GLenum internalFormat,
    }
 
    table->Size = width;
-   table->IntFormat = internalFormat;
-   table->Format = (GLenum) baseFormat;
-   set_component_sizes(table);
+   table->InternalFormat = internalFormat;
+   table->_BaseFormat = (GLenum) baseFormat;
 
-   comps = _mesa_components_in_format(table->Format);
+   comps = _mesa_components_in_format(table->_BaseFormat);
    assert(comps > 0);  /* error should have been caught sooner */
 
    if (!proxy) {
-      /* free old table, if any */
-      if (table->Table) {
-         FREE(table->Table);
-         table->Table = NULL;
-      }
-      if (width > 0) {
-         if (floatTable) {
-            GLfloat tempTab[MAX_COLOR_TABLE_SIZE * 4];
-            GLfloat *tableF;
-            GLint i;
-
-            _mesa_unpack_float_color_span(ctx, width, table->Format,
-                                          tempTab,  /* dest */
-                                          format, type, data, &ctx->Unpack,
-                                          0, GL_FALSE);
-
-            table->FloatTable = GL_TRUE;
-            table->Table = MALLOC(comps * width * sizeof(GLfloat));
-            if (!table->Table) {
-               _mesa_error(ctx, GL_OUT_OF_MEMORY, "glColorTable");
-               return;
-            }
+      _mesa_free_colortable_data(table);
 
-            tableF = (GLfloat *) table->Table;
-
-            switch (table->Format) {
-               case GL_INTENSITY:
-                  for (i = 0; i < width; i++) {
-                     tableF[i] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F);
-                  }
-                  break;
-               case GL_LUMINANCE:
-                  for (i = 0; i < width; i++) {
-                     tableF[i] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F);
-                  }
-                  break;
-               case GL_ALPHA:
-                  for (i = 0; i < width; i++) {
-                     tableF[i] = CLAMP(tempTab[i] * aScale + aBias, 0.0F, 1.0F);
-                  }
-                  break;
-               case GL_LUMINANCE_ALPHA:
-                  for (i = 0; i < width; i++) {
-                     tableF[i*2+0] = CLAMP(tempTab[i*2+0] * rScale + rBias, 0.0F, 1.0F);
-                     tableF[i*2+1] = CLAMP(tempTab[i*2+1] * aScale + aBias, 0.0F, 1.0F);
-                  }
-                  break;
-               case GL_RGB:
-                  for (i = 0; i < width; i++) {
-                     tableF[i*3+0] = CLAMP(tempTab[i*3+0] * rScale + rBias, 0.0F, 1.0F);
-                     tableF[i*3+1] = CLAMP(tempTab[i*3+1] * gScale + gBias, 0.0F, 1.0F);
-                     tableF[i*3+2] = CLAMP(tempTab[i*3+2] * bScale + bBias, 0.0F, 1.0F);
-                  }
-                  break;
-               case GL_RGBA:
-                  for (i = 0; i < width; i++) {
-                     tableF[i*4+0] = CLAMP(tempTab[i*4+0] * rScale + rBias, 0.0F, 1.0F);
-                     tableF[i*4+1] = CLAMP(tempTab[i*4+1] * gScale + gBias, 0.0F, 1.0F);
-                     tableF[i*4+2] = CLAMP(tempTab[i*4+2] * bScale + bBias, 0.0F, 1.0F);
-                     tableF[i*4+3] = CLAMP(tempTab[i*4+3] * aScale + aBias, 0.0F, 1.0F);
-                  }
-                  break;
-               default:
-                  _mesa_problem(ctx, "Bad format in _mesa_ColorTable");
-                  return;
-            }
-         }
-         else {
-            /* store GLchan table */
-            table->FloatTable = GL_FALSE;
-            table->Table = MALLOC(comps * width * sizeof(GLchan));
-            if (!table->Table) {
-               _mesa_error(ctx, GL_OUT_OF_MEMORY, "glColorTable");
-               return;
-            }
-            _mesa_unpack_chan_color_span(ctx, width, table->Format,
-                                         (GLchan *) table->Table,  /* dest */
-                                         format, type, data,
-                                         &ctx->Unpack, 0);
-         } /* floatTable */
-      } /* width > 0 */
+      if (width > 0) {
+         table->TableF = (GLfloat *) _mesa_malloc(comps * width * sizeof(GLfloat));
+         table->TableUB = (GLubyte *) _mesa_malloc(comps * width * sizeof(GLubyte));
+
+        if (!table->TableF || !table->TableUB) {
+           _mesa_error(ctx, GL_OUT_OF_MEMORY, "glColorTable");
+           return;
+        }
+
+        store_colortable_entries(ctx, table,
+                                 0, width,  /* start, count */
+                                 format, type, data,
+                                 scale[0], bias[0],
+                                 scale[1], bias[1],
+                                 scale[2], bias[2],
+                                 scale[3], bias[3]);
+      }
    } /* proxy */
 
+   /* do this after the table's Type and Format are set */
+   set_component_sizes(table);
+
    if (texObj || target == GL_SHARED_TEXTURE_PALETTE_EXT) {
       /* texture object palette, texObj==NULL means the shared palette */
       if (ctx->Driver.UpdateTexturePalette) {
@@ -461,100 +452,64 @@ _mesa_ColorTable( GLenum target, GLenum internalFormat,
 
 
 
-void
+void GLAPIENTRY
 _mesa_ColorSubTable( GLenum target, GLsizei start,
                      GLsizei count, GLenum format, GLenum type,
                      const GLvoid *data )
 {
+   static const GLfloat one[4] = { 1.0, 1.0, 1.0, 1.0 };
+   static const GLfloat zero[4] = { 0.0, 0.0, 0.0, 0.0 };
    GET_CURRENT_CONTEXT(ctx);
    struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
    struct gl_texture_object *texObj = NULL;
    struct gl_color_table *table = NULL;
-   GLfloat rScale = 1.0, gScale = 1.0, bScale = 1.0, aScale = 1.0;
-   GLfloat rBias  = 0.0, gBias  = 0.0, bBias  = 0.0, aBias  = 0.0;
-   GLint comps;
+   const GLfloat *scale = one, *bias = zero;
+
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 
    switch (target) {
-      case GL_TEXTURE_1D:
-         texObj = texUnit->Current1D;
-         table = &texObj->Palette;
-         break;
-      case GL_TEXTURE_2D:
-         texObj = texUnit->Current2D;
-         table = &texObj->Palette;
-         break;
-      case GL_TEXTURE_3D:
-         texObj = texUnit->Current3D;
-         table = &texObj->Palette;
-         break;
-      case GL_TEXTURE_CUBE_MAP_ARB:
-         if (!ctx->Extensions.ARB_texture_cube_map) {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glColorSubTable(target)");
-            return;
-         }
-         texObj = texUnit->CurrentCubeMap;
-         table = &texObj->Palette;
-         break;
       case GL_SHARED_TEXTURE_PALETTE_EXT:
          table = &ctx->Texture.Palette;
          break;
       case GL_COLOR_TABLE:
-         table = &ctx->ColorTable;
-         rScale = ctx->Pixel.ColorTableScale[0];
-         gScale = ctx->Pixel.ColorTableScale[1];
-         bScale = ctx->Pixel.ColorTableScale[2];
-         aScale = ctx->Pixel.ColorTableScale[3];
-         rBias = ctx->Pixel.ColorTableBias[0];
-         gBias = ctx->Pixel.ColorTableBias[1];
-         bBias = ctx->Pixel.ColorTableBias[2];
-         aBias = ctx->Pixel.ColorTableBias[3];
+         table = &ctx->ColorTable[COLORTABLE_PRECONVOLUTION];
+         scale = ctx->Pixel.ColorTableScale[COLORTABLE_PRECONVOLUTION];
+         bias = ctx->Pixel.ColorTableBias[COLORTABLE_PRECONVOLUTION];
          break;
       case GL_TEXTURE_COLOR_TABLE_SGI:
          if (!ctx->Extensions.SGI_texture_color_table) {
             _mesa_error(ctx, GL_INVALID_ENUM, "glColorSubTable(target)");
             return;
          }
-         table = &ctx->TextureColorTable;
-         rScale = ctx->Texture.ColorTableScale[0];
-         gScale = ctx->Texture.ColorTableScale[1];
-         bScale = ctx->Texture.ColorTableScale[2];
-         aScale = ctx->Texture.ColorTableScale[3];
-         rBias = ctx->Texture.ColorTableBias[0];
-         gBias = ctx->Texture.ColorTableBias[1];
-         bBias = ctx->Texture.ColorTableBias[2];
-         aBias = ctx->Texture.ColorTableBias[3];
+         table = &(texUnit->ColorTable);
+         scale = ctx->Pixel.TextureColorTableScale;
+         bias = ctx->Pixel.TextureColorTableBias;
          break;
       case GL_POST_CONVOLUTION_COLOR_TABLE:
-         table = &ctx->PostConvolutionColorTable;
-         rScale = ctx->Pixel.PCCTscale[0];
-         gScale = ctx->Pixel.PCCTscale[1];
-         bScale = ctx->Pixel.PCCTscale[2];
-         aScale = ctx->Pixel.PCCTscale[3];
-         rBias = ctx->Pixel.PCCTbias[0];
-         gBias = ctx->Pixel.PCCTbias[1];
-         bBias = ctx->Pixel.PCCTbias[2];
-         aBias = ctx->Pixel.PCCTbias[3];
+         table = &ctx->ColorTable[COLORTABLE_POSTCONVOLUTION];
+         scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCONVOLUTION];
+         bias = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCONVOLUTION];
          break;
       case GL_POST_COLOR_MATRIX_COLOR_TABLE:
-         table = &ctx->PostColorMatrixColorTable;
-         rScale = ctx->Pixel.PCMCTscale[0];
-         gScale = ctx->Pixel.PCMCTscale[1];
-         bScale = ctx->Pixel.PCMCTscale[2];
-         aScale = ctx->Pixel.PCMCTscale[3];
-         rBias = ctx->Pixel.PCMCTbias[0];
-         gBias = ctx->Pixel.PCMCTbias[1];
-         bBias = ctx->Pixel.PCMCTbias[2];
-         aBias = ctx->Pixel.PCMCTbias[3];
+         table = &ctx->ColorTable[COLORTABLE_POSTCOLORMATRIX];
+         scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCOLORMATRIX];
+         bias = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCOLORMATRIX];
          break;
       default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glColorSubTable(target)");
-         return;
+         /* try texture targets */
+         texObj = _mesa_select_tex_object(ctx, texUnit, target);
+         if (texObj && !_mesa_is_proxy_texture(target)) {
+            table = &texObj->Palette;
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_ENUM, "glColorSubTable(target)");
+            return;
+         }
    }
 
    assert(table);
 
-   if (!_mesa_is_legal_format_and_type(format, type) ||
+   if (!_mesa_is_legal_format_and_type(ctx, format, type) ||
        format == GL_INTENSITY) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glColorSubTable(format or type)");
       return;
@@ -565,86 +520,25 @@ _mesa_ColorSubTable( GLenum target, GLsizei start,
       return;
    }
 
-   comps = _mesa_components_in_format(table->Format);
-   assert(comps > 0);  /* error should have been caught sooner */
+   /* error should have been caught sooner */
+   assert(_mesa_components_in_format(table->_BaseFormat) > 0);
 
    if (start + count > (GLint) table->Size) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glColorSubTable(count)");
       return;
    }
 
-   if (!table->Table) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glColorSubTable");
+   if (!table->TableF || !table->TableUB) {
+      /* a GL_OUT_OF_MEMORY error would have been recorded previously */
       return;
    }
 
-   if (!table->FloatTable) {
-      GLchan *dest = (GLchan *) table->Table + start * comps * sizeof(GLchan);
-      _mesa_unpack_chan_color_span(ctx, count, table->Format, dest,
-                                   format, type, data, &ctx->Unpack, 0);
-   }
-   else {
-      GLfloat tempTab[MAX_COLOR_TABLE_SIZE * 4];
-      GLfloat *tableF;
-      GLint i;
-
-      ASSERT(table->FloatTable);
-
-      _mesa_unpack_float_color_span(ctx, count, table->Format,
-                                    tempTab,  /* dest */
-                                    format, type, data, &ctx->Unpack,
-                                    0, GL_FALSE);
-
-      tableF = (GLfloat *) table->Table;
-
-      switch (table->Format) {
-         case GL_INTENSITY:
-            for (i = 0; i < count; i++) {
-               GLuint j = start + i;
-               tableF[j] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F);
-            }
-            break;
-         case GL_LUMINANCE:
-            for (i = 0; i < count; i++) {
-               GLuint j = start + i;
-               tableF[j] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F);
-            }
-            break;
-         case GL_ALPHA:
-            for (i = 0; i < count; i++) {
-               GLuint j = start + i;
-               tableF[j] = CLAMP(tempTab[i] * aScale + aBias, 0.0F, 1.0F);
-            }
-            break;
-         case GL_LUMINANCE_ALPHA:
-            for (i = 0; i < count; i++) {
-               GLuint j = start + i;
-               tableF[j*2+0] = CLAMP(tempTab[i*2+0] * rScale + rBias, 0.0F, 1.0F);
-               tableF[j*2+1] = CLAMP(tempTab[i*2+1] * aScale + aBias, 0.0F, 1.0F);
-            }
-            break;
-         case GL_RGB:
-            for (i = 0; i < count; i++) {
-               GLuint j = start + i;
-               tableF[j*3+0] = CLAMP(tempTab[i*3+0] * rScale + rBias, 0.0F, 1.0F);
-               tableF[j*3+1] = CLAMP(tempTab[i*3+1] * gScale + gBias, 0.0F, 1.0F);
-               tableF[j*3+2] = CLAMP(tempTab[i*3+2] * bScale + bBias, 0.0F, 1.0F);
-            }
-            break;
-         case GL_RGBA:
-            for (i = 0; i < count; i++) {
-               GLuint j = start + i;
-               tableF[j*4+0] = CLAMP(tempTab[i*4+0] * rScale + rBias, 0.0F, 1.0F);
-               tableF[j*4+1] = CLAMP(tempTab[i*4+1] * gScale + gBias, 0.0F, 1.0F);
-               tableF[j*4+2] = CLAMP(tempTab[i*4+2] * bScale + bBias, 0.0F, 1.0F);
-               tableF[j*4+3] = CLAMP(tempTab[i*4+3] * aScale + aBias, 0.0F, 1.0F);
-            }
-            break;
-         default:
-            _mesa_problem(ctx, "Bad format in _mesa_ColorSubTable");
-            return;
-         }
-   }
+   store_colortable_entries(ctx, table, start, count,
+                           format, type, data,
+                            scale[0], bias[0],
+                            scale[1], bias[1],
+                            scale[2], bias[2],
+                            scale[3], bias[3]);
 
    if (texObj || target == GL_SHARED_TEXTURE_PALETTE_EXT) {
       /* per-texture object palette */
@@ -658,8 +552,7 @@ _mesa_ColorSubTable( GLenum target, GLsizei start,
 
 
 
-/* XXX not tested */
-void
+void GLAPIENTRY
 _mesa_CopyColorTable(GLenum target, GLenum internalformat,
                      GLint x, GLint y, GLsizei width)
 {
@@ -672,8 +565,7 @@ _mesa_CopyColorTable(GLenum target, GLenum internalformat,
 
 
 
-/* XXX not tested */
-void
+void GLAPIENTRY
 _mesa_CopyColorSubTable(GLenum target, GLsizei start,
                         GLint x, GLint y, GLsizei width)
 {
@@ -685,14 +577,14 @@ _mesa_CopyColorSubTable(GLenum target, GLsizei start,
 
 
 
-void
+void GLAPIENTRY
 _mesa_GetColorTable( GLenum target, GLenum format,
                      GLenum type, GLvoid *data )
 {
    GET_CURRENT_CONTEXT(ctx);
    struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
    struct gl_color_table *table = NULL;
-   GLchan rgba[MAX_COLOR_TABLE_SIZE][4];
+   GLfloat rgba[MAX_COLOR_TABLE_SIZE][4];
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 
    if (ctx->NewState) {
@@ -700,278 +592,180 @@ _mesa_GetColorTable( GLenum target, GLenum format,
    }
 
    switch (target) {
-      case GL_TEXTURE_1D:
-         table = &texUnit->Current1D->Palette;
-         break;
-      case GL_TEXTURE_2D:
-         table = &texUnit->Current2D->Palette;
-         break;
-      case GL_TEXTURE_3D:
-         table = &texUnit->Current3D->Palette;
-         break;
-      case GL_TEXTURE_CUBE_MAP_ARB:
-         if (!ctx->Extensions.ARB_texture_cube_map) {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)");
-            return;
-         }
-         table = &texUnit->CurrentCubeMap->Palette;
-         break;
       case GL_SHARED_TEXTURE_PALETTE_EXT:
          table = &ctx->Texture.Palette;
          break;
       case GL_COLOR_TABLE:
-         table = &ctx->ColorTable;
+         table = &ctx->ColorTable[COLORTABLE_PRECONVOLUTION];
          break;
       case GL_TEXTURE_COLOR_TABLE_SGI:
          if (!ctx->Extensions.SGI_texture_color_table) {
             _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)");
             return;
          }
-         table = &ctx->TextureColorTable;
+         table = &(texUnit->ColorTable);
          break;
       case GL_POST_CONVOLUTION_COLOR_TABLE:
-         table = &ctx->PostConvolutionColorTable;
+         table = &ctx->ColorTable[COLORTABLE_POSTCONVOLUTION];
          break;
       case GL_POST_COLOR_MATRIX_COLOR_TABLE:
-         table = &ctx->PostColorMatrixColorTable;
+         table = &ctx->ColorTable[COLORTABLE_POSTCOLORMATRIX];
          break;
       default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)");
-         return;
-   }
-
-   assert(table);
-
-   switch (table->Format) {
-      case GL_ALPHA:
-         if (table->FloatTable) {
-            const GLfloat *tableF = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = 0;
-               rgba[i][GCOMP] = 0;
-               rgba[i][BCOMP] = 0;
-               rgba[i][ACOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
+         /* try texture targets */
+         {
+            struct gl_texture_object *texobj
+               = _mesa_select_tex_object(ctx, texUnit, target);
+            if (texobj && !_mesa_is_proxy_texture(target)) {
+               table = &texobj->Palette;
             }
-         }
-         else {
-            const GLchan *tableUB = (const GLchan *) table->Table;
-            GLuint i;
-            for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = 0;
-               rgba[i][GCOMP] = 0;
-               rgba[i][BCOMP] = 0;
-               rgba[i][ACOMP] = tableUB[i];
-            }
-         }
-         break;
-      case GL_LUMINANCE:
-         if (table->FloatTable) {
-            const GLfloat *tableF = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
-               rgba[i][GCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
-               rgba[i][BCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
-               rgba[i][ACOMP] = CHAN_MAX;
-            }
-         }
-         else {
-            const GLchan *tableUB = (const GLchan *) table->Table;
-            GLuint i;
-            for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = tableUB[i];
-               rgba[i][GCOMP] = tableUB[i];
-               rgba[i][BCOMP] = tableUB[i];
-               rgba[i][ACOMP] = CHAN_MAX;
-            }
-         }
-         break;
-      case GL_LUMINANCE_ALPHA:
-         if (table->FloatTable) {
-            const GLfloat *tableF = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = IROUND_POS(tableF[i*2+0] * CHAN_MAXF);
-               rgba[i][GCOMP] = IROUND_POS(tableF[i*2+0] * CHAN_MAXF);
-               rgba[i][BCOMP] = IROUND_POS(tableF[i*2+0] * CHAN_MAXF);
-               rgba[i][ACOMP] = IROUND_POS(tableF[i*2+1] * CHAN_MAXF);
-            }
-         }
-         else {
-            const GLchan *tableUB = (const GLchan *) table->Table;
-            GLuint i;
-            for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = tableUB[i*2+0];
-               rgba[i][GCOMP] = tableUB[i*2+0];
-               rgba[i][BCOMP] = tableUB[i*2+0];
-               rgba[i][ACOMP] = tableUB[i*2+1];
-            }
-         }
-         break;
-      case GL_INTENSITY:
-         if (table->FloatTable) {
-            const GLfloat *tableF = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
-               rgba[i][GCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
-               rgba[i][BCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
-               rgba[i][ACOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
+            else {
+               _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)");
+               return;
             }
          }
-         else {
-            const GLchan *tableUB = (const GLchan *) table->Table;
-            GLuint i;
-            for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = tableUB[i];
-               rgba[i][GCOMP] = tableUB[i];
-               rgba[i][BCOMP] = tableUB[i];
-               rgba[i][ACOMP] = tableUB[i];
-            }
+   }
+
+   ASSERT(table);
+
+   if (table->Size <= 0) {
+      return;
+   }
+
+   switch (table->_BaseFormat) {
+   case GL_ALPHA:
+      {
+         GLuint i;
+         for (i = 0; i < table->Size; i++) {
+            rgba[i][RCOMP] = 0;
+            rgba[i][GCOMP] = 0;
+            rgba[i][BCOMP] = 0;
+            rgba[i][ACOMP] = table->TableF[i];
          }
-         break;
-      case GL_RGB:
-         if (table->FloatTable) {
-            const GLfloat *tableF = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = IROUND_POS(tableF[i*3+0] * CHAN_MAXF);
-               rgba[i][GCOMP] = IROUND_POS(tableF[i*3+1] * CHAN_MAXF);
-               rgba[i][BCOMP] = IROUND_POS(tableF[i*3+2] * CHAN_MAXF);
-               rgba[i][ACOMP] = CHAN_MAX;
-            }
+      }
+      break;
+   case GL_LUMINANCE:
+      {
+         GLuint i;
+         for (i = 0; i < table->Size; i++) {
+            rgba[i][RCOMP] =
+            rgba[i][GCOMP] =
+            rgba[i][BCOMP] = table->TableF[i];
+            rgba[i][ACOMP] = 1.0F;
          }
-         else {
-            const GLchan *tableUB = (const GLchan *) table->Table;
-            GLuint i;
-            for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = tableUB[i*3+0];
-               rgba[i][GCOMP] = tableUB[i*3+1];
-               rgba[i][BCOMP] = tableUB[i*3+2];
-               rgba[i][ACOMP] = CHAN_MAX;
-            }
+      }
+      break;
+   case GL_LUMINANCE_ALPHA:
+      {
+         GLuint i;
+         for (i = 0; i < table->Size; i++) {
+            rgba[i][RCOMP] =
+            rgba[i][GCOMP] =
+            rgba[i][BCOMP] = table->TableF[i*2+0];
+            rgba[i][ACOMP] = table->TableF[i*2+1];
          }
-         break;
-      case GL_RGBA:
-         if (table->FloatTable) {
-            const GLfloat *tableF = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = IROUND_POS(tableF[i*4+0] * CHAN_MAXF);
-               rgba[i][GCOMP] = IROUND_POS(tableF[i*4+1] * CHAN_MAXF);
-               rgba[i][BCOMP] = IROUND_POS(tableF[i*4+2] * CHAN_MAXF);
-               rgba[i][ACOMP] = IROUND_POS(tableF[i*4+3] * CHAN_MAXF);
-            }
+      }
+      break;
+   case GL_INTENSITY:
+      {
+         GLuint i;
+         for (i = 0; i < table->Size; i++) {
+            rgba[i][RCOMP] =
+            rgba[i][GCOMP] =
+            rgba[i][BCOMP] =
+            rgba[i][ACOMP] = table->TableF[i];
          }
-         else {
-            const GLchan *tableUB = (const GLchan *) table->Table;
-            GLuint i;
-            for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = tableUB[i*4+0];
-               rgba[i][GCOMP] = tableUB[i*4+1];
-               rgba[i][BCOMP] = tableUB[i*4+2];
-               rgba[i][ACOMP] = tableUB[i*4+3];
-            }
+      }
+      break;
+   case GL_RGB:
+      {
+         GLuint i;
+         for (i = 0; i < table->Size; i++) {
+            rgba[i][RCOMP] = table->TableF[i*3+0];
+            rgba[i][GCOMP] = table->TableF[i*3+1];
+            rgba[i][BCOMP] = table->TableF[i*3+2];
+            rgba[i][ACOMP] = 1.0F;
          }
-         break;
-      default:
-         _mesa_problem(ctx, "bad table format in glGetColorTable");
+      }
+      break;
+   case GL_RGBA:
+      _mesa_memcpy(rgba, table->TableF, 4 * table->Size * sizeof(GLfloat));
+      break;
+   default:
+      _mesa_problem(ctx, "bad table format in glGetColorTable");
+      return;
+   }
+
+   if (ctx->Pack.BufferObj->Name) {
+      /* pack color table into PBO */
+      GLubyte *buf;
+      if (!_mesa_validate_pbo_access(1, &ctx->Pack, table->Size, 1, 1,
+                                     format, type, data)) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glGetColorTable(invalid PBO access)");
+         return;
+      }
+      buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
+                                              GL_WRITE_ONLY_ARB,
+                                              ctx->Pack.BufferObj);
+      if (!buf) {
+         /* buffer is already mapped - that's an error */
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glGetColorTable(PBO is mapped)");
          return;
+      }
+      data = ADD_POINTERS(buf, data);
    }
 
-   _mesa_pack_rgba_span(ctx, table->Size, (const GLchan (*)[4]) rgba,
-                        format, type, data, &ctx->Pack, GL_FALSE);
+   _mesa_pack_rgba_span_float(ctx, table->Size, rgba,
+                              format, type, data, &ctx->Pack, 0x0);
+
+   if (ctx->Pack.BufferObj->Name) {
+      ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
+                              ctx->Pack.BufferObj);
+   }
 }
 
 
 
-void
+void GLAPIENTRY
 _mesa_ColorTableParameterfv(GLenum target, GLenum pname, const GLfloat *params)
 {
+   GLfloat *scale, *bias;
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 
    switch (target) {
-      case GL_COLOR_TABLE_SGI:
-         if (pname == GL_COLOR_TABLE_SCALE_SGI) {
-            ctx->Pixel.ColorTableScale[0] = params[0];
-            ctx->Pixel.ColorTableScale[1] = params[1];
-            ctx->Pixel.ColorTableScale[2] = params[2];
-            ctx->Pixel.ColorTableScale[3] = params[3];
-         }
-         else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
-            ctx->Pixel.ColorTableBias[0] = params[0];
-            ctx->Pixel.ColorTableBias[1] = params[1];
-            ctx->Pixel.ColorTableBias[2] = params[2];
-            ctx->Pixel.ColorTableBias[3] = params[3];
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(pname)");
-            return;
-         }
-         break;
-      case GL_TEXTURE_COLOR_TABLE_SGI:
-         if (!ctx->Extensions.SGI_texture_color_table) {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameter(target)");
-            return;
-         }
-         if (pname == GL_COLOR_TABLE_SCALE_SGI) {
-            ctx->Texture.ColorTableScale[0] = params[0];
-            ctx->Texture.ColorTableScale[1] = params[1];
-            ctx->Texture.ColorTableScale[2] = params[2];
-            ctx->Texture.ColorTableScale[3] = params[3];
-         }
-         else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
-            ctx->Texture.ColorTableBias[0] = params[0];
-            ctx->Texture.ColorTableBias[1] = params[1];
-            ctx->Texture.ColorTableBias[2] = params[2];
-            ctx->Texture.ColorTableBias[3] = params[3];
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(pname)");
-            return;
-         }
-         break;
-      case GL_POST_CONVOLUTION_COLOR_TABLE_SGI:
-         if (pname == GL_COLOR_TABLE_SCALE_SGI) {
-            ctx->Pixel.PCCTscale[0] = params[0];
-            ctx->Pixel.PCCTscale[1] = params[1];
-            ctx->Pixel.PCCTscale[2] = params[2];
-            ctx->Pixel.PCCTscale[3] = params[3];
-         }
-         else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
-            ctx->Pixel.PCCTbias[0] = params[0];
-            ctx->Pixel.PCCTbias[1] = params[1];
-            ctx->Pixel.PCCTbias[2] = params[2];
-            ctx->Pixel.PCCTbias[3] = params[3];
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(pname)");
-            return;
-         }
-         break;
-      case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI:
-         if (pname == GL_COLOR_TABLE_SCALE_SGI) {
-            ctx->Pixel.PCMCTscale[0] = params[0];
-            ctx->Pixel.PCMCTscale[1] = params[1];
-            ctx->Pixel.PCMCTscale[2] = params[2];
-            ctx->Pixel.PCMCTscale[3] = params[3];
-         }
-         else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
-            ctx->Pixel.PCMCTbias[0] = params[0];
-            ctx->Pixel.PCMCTbias[1] = params[1];
-            ctx->Pixel.PCMCTbias[2] = params[2];
-            ctx->Pixel.PCMCTbias[3] = params[3];
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(pname)");
-            return;
-         }
-         break;
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameter(target)");
-         return;
+   case GL_COLOR_TABLE_SGI:
+      scale = ctx->Pixel.ColorTableScale[COLORTABLE_PRECONVOLUTION];
+      bias  = ctx->Pixel.ColorTableBias[COLORTABLE_PRECONVOLUTION];
+      break;
+   case GL_TEXTURE_COLOR_TABLE_SGI:
+      scale = ctx->Pixel.TextureColorTableScale;
+      bias  = ctx->Pixel.TextureColorTableBias;
+      break;
+   case GL_POST_CONVOLUTION_COLOR_TABLE_SGI:
+      scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCONVOLUTION];
+      bias  = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCONVOLUTION];
+      break;
+   case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI:
+      scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCOLORMATRIX];
+      bias  = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCOLORMATRIX];
+      break;
+   default:
+      _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameter(target)");
+      return;
+   }
+
+   if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+      COPY_4V(scale, params);
+   }
+   else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+      COPY_4V(bias, params);
+   }
+   else {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(pname)");
+      return;
    }
 
    ctx->NewState |= _NEW_PIXEL;
@@ -979,7 +773,7 @@ _mesa_ColorTableParameterfv(GLenum target, GLenum pname, const GLfloat *params)
 
 
 
-void
+void GLAPIENTRY
 _mesa_ColorTableParameteriv(GLenum target, GLenum pname, const GLint *params)
 {
    GLfloat fparams[4];
@@ -1002,7 +796,7 @@ _mesa_ColorTableParameteriv(GLenum target, GLenum pname, const GLint *params)
 
 
 
-void
+void GLAPIENTRY
 _mesa_GetColorTableParameterfv( GLenum target, GLenum pname, GLfloat *params )
 {
    GET_CURRENT_CONTEXT(ctx);
@@ -1011,81 +805,35 @@ _mesa_GetColorTableParameterfv( GLenum target, GLenum pname, GLfloat *params )
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    switch (target) {
-      case GL_TEXTURE_1D:
-         table = &texUnit->Current1D->Palette;
-         break;
-      case GL_TEXTURE_2D:
-         table = &texUnit->Current2D->Palette;
-         break;
-      case GL_TEXTURE_3D:
-         table = &texUnit->Current3D->Palette;
-         break;
-      case GL_TEXTURE_CUBE_MAP_ARB:
-         if (!ctx->Extensions.ARB_texture_cube_map) {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetColorTableParameterfv(target)");
-            return;
-         }
-         table = &texUnit->CurrentCubeMap->Palette;
-         break;
-      case GL_PROXY_TEXTURE_1D:
-         table = &ctx->Texture.Proxy1D->Palette;
-         break;
-      case GL_PROXY_TEXTURE_2D:
-         table = &ctx->Texture.Proxy2D->Palette;
-         break;
-      case GL_PROXY_TEXTURE_3D:
-         table = &ctx->Texture.Proxy3D->Palette;
-         break;
-      case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
-         if (!ctx->Extensions.ARB_texture_cube_map) {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetColorTableParameterfv(target)");
-            return;
-         }
-         table = &ctx->Texture.ProxyCubeMap->Palette;
-         break;
       case GL_SHARED_TEXTURE_PALETTE_EXT:
          table = &ctx->Texture.Palette;
          break;
       case GL_COLOR_TABLE:
-         table = &ctx->ColorTable;
+         table = &ctx->ColorTable[COLORTABLE_PRECONVOLUTION];
          if (pname == GL_COLOR_TABLE_SCALE_SGI) {
-            params[0] = ctx->Pixel.ColorTableScale[0];
-            params[1] = ctx->Pixel.ColorTableScale[1];
-            params[2] = ctx->Pixel.ColorTableScale[2];
-            params[3] = ctx->Pixel.ColorTableScale[3];
+            COPY_4V(params, ctx->Pixel.ColorTableScale[COLORTABLE_PRECONVOLUTION]);
             return;
          }
          else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
-            params[0] = ctx->Pixel.ColorTableBias[0];
-            params[1] = ctx->Pixel.ColorTableBias[1];
-            params[2] = ctx->Pixel.ColorTableBias[2];
-            params[3] = ctx->Pixel.ColorTableBias[3];
+            COPY_4V(params, ctx->Pixel.ColorTableBias[COLORTABLE_PRECONVOLUTION]);
             return;
          }
          break;
       case GL_PROXY_COLOR_TABLE:
-         table = &ctx->ProxyColorTable;
+         table = &ctx->ProxyColorTable[COLORTABLE_PRECONVOLUTION];
          break;
       case GL_TEXTURE_COLOR_TABLE_SGI:
          if (!ctx->Extensions.SGI_texture_color_table) {
             _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameter(target)");
             return;
          }
-         table = &ctx->TextureColorTable;
+         table = &(texUnit->ColorTable);
          if (pname == GL_COLOR_TABLE_SCALE_SGI) {
-            params[0] = ctx->Texture.ColorTableScale[0];
-            params[1] = ctx->Texture.ColorTableScale[1];
-            params[2] = ctx->Texture.ColorTableScale[2];
-            params[3] = ctx->Texture.ColorTableScale[3];
+            COPY_4V(params, ctx->Pixel.TextureColorTableScale);
             return;
          }
          else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
-            params[0] = ctx->Texture.ColorTableBias[0];
-            params[1] = ctx->Texture.ColorTableBias[1];
-            params[2] = ctx->Texture.ColorTableBias[2];
-            params[3] = ctx->Texture.ColorTableBias[3];
+            COPY_4V(params, ctx->Pixel.TextureColorTableBias);
             return;
          }
          break;
@@ -1094,58 +842,57 @@ _mesa_GetColorTableParameterfv( GLenum target, GLenum pname, GLfloat *params )
             _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameter(target)");
             return;
          }
-         table = &ctx->ProxyTextureColorTable;
+         table = &(texUnit->ProxyColorTable);
          break;
       case GL_POST_CONVOLUTION_COLOR_TABLE:
-         table = &ctx->PostConvolutionColorTable;
+         table = &ctx->ColorTable[COLORTABLE_POSTCONVOLUTION];
          if (pname == GL_COLOR_TABLE_SCALE_SGI) {
-            params[0] = ctx->Pixel.PCCTscale[0];
-            params[1] = ctx->Pixel.PCCTscale[1];
-            params[2] = ctx->Pixel.PCCTscale[2];
-            params[3] = ctx->Pixel.PCCTscale[3];
+            COPY_4V(params, ctx->Pixel.ColorTableScale[COLORTABLE_POSTCONVOLUTION]);
             return;
          }
          else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
-            params[0] = ctx->Pixel.PCCTbias[0];
-            params[1] = ctx->Pixel.PCCTbias[1];
-            params[2] = ctx->Pixel.PCCTbias[2];
-            params[3] = ctx->Pixel.PCCTbias[3];
+            COPY_4V(params, ctx->Pixel.ColorTableBias[COLORTABLE_POSTCONVOLUTION]);
             return;
          }
          break;
       case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE:
-         table = &ctx->ProxyPostConvolutionColorTable;
+         table = &ctx->ProxyColorTable[COLORTABLE_POSTCONVOLUTION];
          break;
       case GL_POST_COLOR_MATRIX_COLOR_TABLE:
-         table = &ctx->PostColorMatrixColorTable;
+         table = &ctx->ColorTable[COLORTABLE_POSTCOLORMATRIX];
          if (pname == GL_COLOR_TABLE_SCALE_SGI) {
-            params[0] = ctx->Pixel.PCMCTscale[0];
-            params[1] = ctx->Pixel.PCMCTscale[1];
-            params[2] = ctx->Pixel.PCMCTscale[2];
-            params[3] = ctx->Pixel.PCMCTscale[3];
+            COPY_4V(params, ctx->Pixel.ColorTableScale[COLORTABLE_POSTCOLORMATRIX]);
             return;
          }
          else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
-            params[0] = ctx->Pixel.PCMCTbias[0];
-            params[1] = ctx->Pixel.PCMCTbias[1];
-            params[2] = ctx->Pixel.PCMCTbias[2];
-            params[3] = ctx->Pixel.PCMCTbias[3];
+            COPY_4V(params, ctx->Pixel.ColorTableBias[COLORTABLE_POSTCOLORMATRIX]);
             return;
          }
          break;
       case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE:
-         table = &ctx->ProxyPostColorMatrixColorTable;
+         table = &ctx->ProxyColorTable[COLORTABLE_POSTCOLORMATRIX];
          break;
       default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameterfv(target)");
-         return;
+         /* try texture targets */
+         {
+            struct gl_texture_object *texobj
+               = _mesa_select_tex_object(ctx, texUnit, target);
+            if (texobj) {
+               table = &texobj->Palette;
+            }
+            else {
+               _mesa_error(ctx, GL_INVALID_ENUM,
+                           "glGetColorTableParameterfv(target)");
+               return;
+            }
+         }
    }
 
    assert(table);
 
    switch (pname) {
       case GL_COLOR_TABLE_FORMAT:
-         *params = (GLfloat) table->IntFormat;
+         *params = (GLfloat) table->InternalFormat;
          break;
       case GL_COLOR_TABLE_WIDTH:
          *params = (GLfloat) table->Size;
@@ -1176,7 +923,7 @@ _mesa_GetColorTableParameterfv( GLenum target, GLenum pname, GLfloat *params )
 
 
 
-void
+void GLAPIENTRY
 _mesa_GetColorTableParameteriv( GLenum target, GLenum pname, GLint *params )
 {
    GET_CURRENT_CONTEXT(ctx);
@@ -1185,81 +932,49 @@ _mesa_GetColorTableParameteriv( GLenum target, GLenum pname, GLint *params )
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    switch (target) {
-      case GL_TEXTURE_1D:
-         table = &texUnit->Current1D->Palette;
-         break;
-      case GL_TEXTURE_2D:
-         table = &texUnit->Current2D->Palette;
-         break;
-      case GL_TEXTURE_3D:
-         table = &texUnit->Current3D->Palette;
-         break;
-      case GL_TEXTURE_CUBE_MAP_ARB:
-         if (!ctx->Extensions.ARB_texture_cube_map) {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetColorTableParameteriv(target)");
-            return;
-         }
-         table = &texUnit->CurrentCubeMap->Palette;
-         break;
-      case GL_PROXY_TEXTURE_1D:
-         table = &ctx->Texture.Proxy1D->Palette;
-         break;
-      case GL_PROXY_TEXTURE_2D:
-         table = &ctx->Texture.Proxy2D->Palette;
-         break;
-      case GL_PROXY_TEXTURE_3D:
-         table = &ctx->Texture.Proxy3D->Palette;
-         break;
-      case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
-         if (!ctx->Extensions.ARB_texture_cube_map) {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetColorTableParameteriv(target)");
-            return;
-         }
-         table = &ctx->Texture.ProxyCubeMap->Palette;
-         break;
       case GL_SHARED_TEXTURE_PALETTE_EXT:
          table = &ctx->Texture.Palette;
          break;
       case GL_COLOR_TABLE:
-         table = &ctx->ColorTable;
+         table = &ctx->ColorTable[COLORTABLE_PRECONVOLUTION];
          if (pname == GL_COLOR_TABLE_SCALE_SGI) {
-            params[0] = (GLint) ctx->Pixel.ColorTableScale[0];
-            params[1] = (GLint) ctx->Pixel.ColorTableScale[1];
-            params[2] = (GLint) ctx->Pixel.ColorTableScale[2];
-            params[3] = (GLint) ctx->Pixel.ColorTableScale[3];
+            GLfloat *scale = ctx->Pixel.ColorTableScale[COLORTABLE_PRECONVOLUTION];
+            params[0] = (GLint) scale[0];
+            params[1] = (GLint) scale[1];
+            params[2] = (GLint) scale[2];
+            params[3] = (GLint) scale[3];
             return;
          }
          else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
-            params[0] = (GLint) ctx->Pixel.ColorTableBias[0];
-            params[1] = (GLint) ctx->Pixel.ColorTableBias[1];
-            params[2] = (GLint) ctx->Pixel.ColorTableBias[2];
-            params[3] = (GLint) ctx->Pixel.ColorTableBias[3];
+            GLfloat *bias = ctx->Pixel.ColorTableBias[COLORTABLE_PRECONVOLUTION];
+            params[0] = (GLint) bias[0];
+            params[1] = (GLint) bias[1];
+            params[2] = (GLint) bias[2];
+            params[3] = (GLint) bias[3];
             return;
          }
          break;
       case GL_PROXY_COLOR_TABLE:
-         table = &ctx->ProxyColorTable;
+         table = &ctx->ProxyColorTable[COLORTABLE_PRECONVOLUTION];
          break;
       case GL_TEXTURE_COLOR_TABLE_SGI:
          if (!ctx->Extensions.SGI_texture_color_table) {
             _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameter(target)");
             return;
          }
-         table = &ctx->TextureColorTable;
+         table = &(texUnit->ColorTable);
          if (pname == GL_COLOR_TABLE_SCALE_SGI) {
-            params[0] = (GLint) ctx->Texture.ColorTableScale[0];
-            params[1] = (GLint) ctx->Texture.ColorTableScale[1];
-            params[2] = (GLint) ctx->Texture.ColorTableScale[2];
-            params[3] = (GLint) ctx->Texture.ColorTableScale[3];
+            params[0] = (GLint) ctx->Pixel.TextureColorTableScale[0];
+            params[1] = (GLint) ctx->Pixel.TextureColorTableScale[1];
+            params[2] = (GLint) ctx->Pixel.TextureColorTableScale[2];
+            params[3] = (GLint) ctx->Pixel.TextureColorTableScale[3];
             return;
          }
          else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
-            params[0] = (GLint) ctx->Texture.ColorTableBias[0];
-            params[1] = (GLint) ctx->Texture.ColorTableBias[1];
-            params[2] = (GLint) ctx->Texture.ColorTableBias[2];
-            params[3] = (GLint) ctx->Texture.ColorTableBias[3];
+            params[0] = (GLint) ctx->Pixel.TextureColorTableBias[0];
+            params[1] = (GLint) ctx->Pixel.TextureColorTableBias[1];
+            params[2] = (GLint) ctx->Pixel.TextureColorTableBias[2];
+            params[3] = (GLint) ctx->Pixel.TextureColorTableBias[3];
             return;
          }
          break;
@@ -1268,58 +983,73 @@ _mesa_GetColorTableParameteriv( GLenum target, GLenum pname, GLint *params )
             _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameter(target)");
             return;
          }
-         table = &ctx->ProxyTextureColorTable;
+         table = &(texUnit->ProxyColorTable);
          break;
       case GL_POST_CONVOLUTION_COLOR_TABLE:
-         table = &ctx->PostConvolutionColorTable;
+         table = &ctx->ColorTable[COLORTABLE_POSTCONVOLUTION];
          if (pname == GL_COLOR_TABLE_SCALE_SGI) {
-            params[0] = (GLint) ctx->Pixel.PCCTscale[0];
-            params[1] = (GLint) ctx->Pixel.PCCTscale[1];
-            params[2] = (GLint) ctx->Pixel.PCCTscale[2];
-            params[3] = (GLint) ctx->Pixel.PCCTscale[3];
+            GLfloat *scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCONVOLUTION];
+            params[0] = (GLint) scale[0];
+            params[1] = (GLint) scale[1];
+            params[2] = (GLint) scale[2];
+            params[3] = (GLint) scale[3];
             return;
          }
          else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
-            params[0] = (GLint) ctx->Pixel.PCCTbias[0];
-            params[1] = (GLint) ctx->Pixel.PCCTbias[1];
-            params[2] = (GLint) ctx->Pixel.PCCTbias[2];
-            params[3] = (GLint) ctx->Pixel.PCCTbias[3];
+            GLfloat *bias = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCONVOLUTION];
+            params[0] = (GLint) bias[0];
+            params[1] = (GLint) bias[1];
+            params[2] = (GLint) bias[2];
+            params[3] = (GLint) bias[3];
             return;
          }
          break;
       case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE:
-         table = &ctx->ProxyPostConvolutionColorTable;
+         table = &ctx->ProxyColorTable[COLORTABLE_POSTCONVOLUTION];
          break;
       case GL_POST_COLOR_MATRIX_COLOR_TABLE:
-         table = &ctx->PostColorMatrixColorTable;
+         table = &ctx->ColorTable[COLORTABLE_POSTCOLORMATRIX];
          if (pname == GL_COLOR_TABLE_SCALE_SGI) {
-            params[0] = (GLint) ctx->Pixel.PCMCTscale[0];
-            params[1] = (GLint) ctx->Pixel.PCMCTscale[1];
-            params[2] = (GLint) ctx->Pixel.PCMCTscale[2];
-            params[3] = (GLint) ctx->Pixel.PCMCTscale[3];
+            GLfloat *scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCOLORMATRIX];
+            params[0] = (GLint) scale[0];
+            params[0] = (GLint) scale[1];
+            params[0] = (GLint) scale[2];
+            params[0] = (GLint) scale[3];
             return;
          }
          else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
-            params[0] = (GLint) ctx->Pixel.PCMCTbias[0];
-            params[1] = (GLint) ctx->Pixel.PCMCTbias[1];
-            params[2] = (GLint) ctx->Pixel.PCMCTbias[2];
-            params[3] = (GLint) ctx->Pixel.PCMCTbias[3];
+            GLfloat *bias = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCOLORMATRIX];
+            params[0] = (GLint) bias[0];
+            params[1] = (GLint) bias[1];
+            params[2] = (GLint) bias[2];
+            params[3] = (GLint) bias[3];
             return;
          }
          break;
       case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE:
-         table = &ctx->ProxyPostColorMatrixColorTable;
+         table = &ctx->ProxyColorTable[COLORTABLE_POSTCOLORMATRIX];
          break;
       default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameteriv(target)");
-         return;
+         /* Try texture targets */
+         {
+            struct gl_texture_object *texobj
+               = _mesa_select_tex_object(ctx, texUnit, target);
+            if (texobj) {
+               table = &texobj->Palette;
+            }
+            else {
+               _mesa_error(ctx, GL_INVALID_ENUM,
+                           "glGetColorTableParameteriv(target)");
+               return;
+            }
+         }
    }
 
    assert(table);
 
    switch (pname) {
       case GL_COLOR_TABLE_FORMAT:
-         *params = table->IntFormat;
+         *params = table->InternalFormat;
          break;
       case GL_COLOR_TABLE_WIDTH:
          *params = table->Size;
@@ -1347,3 +1077,60 @@ _mesa_GetColorTableParameteriv( GLenum target, GLenum pname, GLint *params )
          return;
    }
 }
+
+/**********************************************************************/
+/*****                      Initialization                        *****/
+/**********************************************************************/
+
+
+void
+_mesa_init_colortable( struct gl_color_table *p )
+{
+   p->TableF = NULL;
+   p->TableUB = NULL;
+   p->Size = 0;
+   p->InternalFormat = GL_RGBA;
+}
+
+
+
+void
+_mesa_free_colortable_data( struct gl_color_table *p )
+{
+   if (p->TableF) {
+      _mesa_free(p->TableF);
+      p->TableF = NULL;
+   }
+   if (p->TableUB) {
+      _mesa_free(p->TableUB);
+      p->TableUB = NULL;
+   }
+}
+
+
+/*
+ * Initialize all colortables for a context.
+ */
+void
+_mesa_init_colortables( GLcontext * ctx )
+{
+   GLuint i;
+   for (i = 0; i < COLORTABLE_MAX; i++) {
+      _mesa_init_colortable(&ctx->ColorTable[i]);
+      _mesa_init_colortable(&ctx->ProxyColorTable[i]);
+   }
+}
+
+
+/*
+ * Free all colortable data for a context
+ */
+void
+_mesa_free_colortables_data( GLcontext *ctx )
+{
+   GLuint i;
+   for (i = 0; i < COLORTABLE_MAX; i++) {
+      _mesa_free_colortable_data(&ctx->ColorTable[i]);
+      _mesa_free_colortable_data(&ctx->ProxyColorTable[i]);
+   }
+}