X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fpixel.c;h=57ae9c721a823e42b0aefac04f045eca947773fc;hb=06cd826fcba7bde168a85444a95de589ff5b6f2e;hp=3d36c66e5be3b194be893e13ba64091ed397c857;hpb=331cc1dcba8705116288e487f43f460852c2159f;p=mesa.git

diff --git a/src/mesa/main/pixel.c b/src/mesa/main/pixel.c
index 3d36c66e5be..57ae9c721a8 100644
--- a/src/mesa/main/pixel.c
+++ b/src/mesa/main/pixel.c
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.3
+ * Version:  7.1
  *
- * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2008  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"),
@@ -22,6 +22,12 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
+
+/**
+ * \file pixel.c
+ * Pixel transfer functions (glPixelZoom, glPixelMap, glPixelTransfer)
+ */
+
 #include "glheader.h"
 #include "bufferobj.h"
 #include "colormac.h"
@@ -36,8 +42,6 @@
 /*****                    glPixelZoom                             *****/
 /**********************************************************************/
 
-
-
 void GLAPIENTRY
 _mesa_PixelZoom( GLfloat xfactor, GLfloat yfactor )
 {
@@ -55,282 +59,79 @@ _mesa_PixelZoom( GLfloat xfactor, GLfloat yfactor )
 
 
 /**********************************************************************/
-/*****                    glPixelStore                            *****/
+/*****                         glPixelMap                         *****/
 /**********************************************************************/
 
-
-void GLAPIENTRY
-_mesa_PixelStorei( GLenum pname, GLint param )
+/**
+ * Return pointer to a pixelmap by name.
+ */
+static struct gl_pixelmap *
+get_pixelmap(GLcontext *ctx, GLenum map)
 {
-   /* NOTE: this call can't be compiled into the display list */
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   switch (pname) {
-      case GL_PACK_SWAP_BYTES:
-	 if (param == (GLint)ctx->Pack.SwapBytes)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-         ctx->Pack.SwapBytes = param ? GL_TRUE : GL_FALSE;
-	 break;
-      case GL_PACK_LSB_FIRST:
-	 if (param == (GLint)ctx->Pack.LsbFirst)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-         ctx->Pack.LsbFirst = param ? GL_TRUE : GL_FALSE;
-	 break;
-      case GL_PACK_ROW_LENGTH:
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Pack.RowLength == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Pack.RowLength = param;
-	 break;
-      case GL_PACK_IMAGE_HEIGHT:
-         if (param<0) {
-            _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Pack.ImageHeight == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Pack.ImageHeight = param;
-         break;
-      case GL_PACK_SKIP_PIXELS:
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Pack.SkipPixels == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Pack.SkipPixels = param;
-	 break;
-      case GL_PACK_SKIP_ROWS:
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Pack.SkipRows == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Pack.SkipRows = param;
-	 break;
-      case GL_PACK_SKIP_IMAGES:
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Pack.SkipImages == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Pack.SkipImages = param;
-	 break;
-      case GL_PACK_ALIGNMENT:
-         if (param!=1 && param!=2 && param!=4 && param!=8) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Pack.Alignment == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Pack.Alignment = param;
-	 break;
-      case GL_PACK_INVERT_MESA:
-         if (!ctx->Extensions.MESA_pack_invert) {
-            _mesa_error( ctx, GL_INVALID_ENUM, "glPixelstore(pname)" );
-            return;
-         }
-         if (ctx->Pack.Invert == param)
-            return;
-         FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-         ctx->Pack.Invert = param;
-         break;
-
-      case GL_UNPACK_SWAP_BYTES:
-	 if (param == (GLint)ctx->Unpack.SwapBytes)
-	    return;
-	 if ((GLint)ctx->Unpack.SwapBytes == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Unpack.SwapBytes = param ? GL_TRUE : GL_FALSE;
-         break;
-      case GL_UNPACK_LSB_FIRST:
-	 if (param == (GLint)ctx->Unpack.LsbFirst)
-	    return;
-	 if ((GLint)ctx->Unpack.LsbFirst == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Unpack.LsbFirst = param ? GL_TRUE : GL_FALSE;
-	 break;
-      case GL_UNPACK_ROW_LENGTH:
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Unpack.RowLength == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Unpack.RowLength = param;
-	 break;
-      case GL_UNPACK_IMAGE_HEIGHT:
-         if (param<0) {
-            _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Unpack.ImageHeight == param)
-	    return;
-
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Unpack.ImageHeight = param;
-         break;
-      case GL_UNPACK_SKIP_PIXELS:
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Unpack.SkipPixels == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Unpack.SkipPixels = param;
-	 break;
-      case GL_UNPACK_SKIP_ROWS:
-	 if (param<0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Unpack.SkipRows == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Unpack.SkipRows = param;
-	 break;
-      case GL_UNPACK_SKIP_IMAGES:
-	 if (param < 0) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
-	    return;
-	 }
-	 if (ctx->Unpack.SkipImages == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Unpack.SkipImages = param;
-	 break;
-      case GL_UNPACK_ALIGNMENT:
-         if (param!=1 && param!=2 && param!=4 && param!=8) {
-	    _mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore" );
-	    return;
-	 }
-	 if (ctx->Unpack.Alignment == param)
-	    return;
-	 FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-	 ctx->Unpack.Alignment = param;
-	 break;
-      case GL_UNPACK_CLIENT_STORAGE_APPLE:
-         if (param == (GLint)ctx->Unpack.ClientStorage)
-            return;
-         FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
-         ctx->Unpack.ClientStorage = param ? GL_TRUE : GL_FALSE;
-         break;
-      default:
-	 _mesa_error( ctx, GL_INVALID_ENUM, "glPixelStore" );
-	 return;
+   switch (map) {
+   case GL_PIXEL_MAP_I_TO_I:
+      return &ctx->PixelMaps.ItoI;
+   case GL_PIXEL_MAP_S_TO_S:
+      return &ctx->PixelMaps.StoS;
+   case GL_PIXEL_MAP_I_TO_R:
+      return &ctx->PixelMaps.ItoR;
+   case GL_PIXEL_MAP_I_TO_G:
+      return &ctx->PixelMaps.ItoG;
+   case GL_PIXEL_MAP_I_TO_B:
+      return &ctx->PixelMaps.ItoB;
+   case GL_PIXEL_MAP_I_TO_A:
+      return &ctx->PixelMaps.ItoA;
+   case GL_PIXEL_MAP_R_TO_R:
+      return &ctx->PixelMaps.RtoR;
+   case GL_PIXEL_MAP_G_TO_G:
+      return &ctx->PixelMaps.GtoG;
+   case GL_PIXEL_MAP_B_TO_B:
+      return &ctx->PixelMaps.BtoB;
+   case GL_PIXEL_MAP_A_TO_A:
+      return &ctx->PixelMaps.AtoA;
+   default:
+      return NULL;
    }
 }
 
 
-void GLAPIENTRY
-_mesa_PixelStoref( GLenum pname, GLfloat param )
-{
-   _mesa_PixelStorei( pname, (GLint) param );
-}
-
-
-
-/**********************************************************************/
-/*****                         glPixelMap                         *****/
-/**********************************************************************/
-
-
 /**
  * Helper routine used by the other _mesa_PixelMap() functions.
  */
 static void
-pixelmap(GLcontext *ctx, GLenum map, GLsizei mapsize, const GLfloat *values)
+store_pixelmap(GLcontext *ctx, GLenum map, GLsizei mapsize,
+               const GLfloat *values)
 {
    GLint i;
+   struct gl_pixelmap *pm = get_pixelmap(ctx, map);
+   if (!pm) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glPixelMap(map)");
+      return;
+   }
+
    switch (map) {
-      case GL_PIXEL_MAP_S_TO_S:
-         ctx->Pixel.MapStoSsize = mapsize;
-         for (i = 0; i < mapsize; i++) {
-	    ctx->Pixel.MapStoS[i] = (GLint) values[i];
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_I:
-         ctx->Pixel.MapItoIsize = mapsize;
-         for (i = 0; i < mapsize; i++) {
-	    ctx->Pixel.MapItoI[i] = (GLint) values[i];
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_R:
-         ctx->Pixel.MapItoRsize = mapsize;
-         for (i = 0; i < mapsize; i++) {
-            GLfloat val = CLAMP( values[i], 0.0F, 1.0F );
-	    ctx->Pixel.MapItoR[i] = val;
-	    ctx->Pixel.MapItoR8[i] = (GLint) (val * 255.0F);
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_G:
-         ctx->Pixel.MapItoGsize = mapsize;
-         for (i = 0; i < mapsize; i++) {
-            GLfloat val = CLAMP( values[i], 0.0F, 1.0F );
-	    ctx->Pixel.MapItoG[i] = val;
-	    ctx->Pixel.MapItoG8[i] = (GLint) (val * 255.0F);
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_B:
-         ctx->Pixel.MapItoBsize = mapsize;
-         for (i = 0; i < mapsize; i++) {
-            GLfloat val = CLAMP( values[i], 0.0F, 1.0F );
-	    ctx->Pixel.MapItoB[i] = val;
-	    ctx->Pixel.MapItoB8[i] = (GLint) (val * 255.0F);
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_A:
-         ctx->Pixel.MapItoAsize = mapsize;
-         for (i = 0; i < mapsize; i++) {
-            GLfloat val = CLAMP( values[i], 0.0F, 1.0F );
-	    ctx->Pixel.MapItoA[i] = val;
-	    ctx->Pixel.MapItoA8[i] = (GLint) (val * 255.0F);
-	 }
-	 break;
-      case GL_PIXEL_MAP_R_TO_R:
-         ctx->Pixel.MapRtoRsize = mapsize;
-         for (i = 0; i < mapsize; i++) {
-	    ctx->Pixel.MapRtoR[i] = CLAMP( values[i], 0.0F, 1.0F );
-	 }
-	 break;
-      case GL_PIXEL_MAP_G_TO_G:
-         ctx->Pixel.MapGtoGsize = mapsize;
-         for (i = 0; i < mapsize; i++) {
-	    ctx->Pixel.MapGtoG[i] = CLAMP( values[i], 0.0F, 1.0F );
-	 }
-	 break;
-      case GL_PIXEL_MAP_B_TO_B:
-         ctx->Pixel.MapBtoBsize = mapsize;
-         for (i = 0; i < mapsize; i++) {
-	    ctx->Pixel.MapBtoB[i] = CLAMP( values[i], 0.0F, 1.0F );
-	 }
-	 break;
-      case GL_PIXEL_MAP_A_TO_A:
-         ctx->Pixel.MapAtoAsize = mapsize;
-         for (i = 0; i < mapsize; i++) {
-	    ctx->Pixel.MapAtoA[i] = CLAMP( values[i], 0.0F, 1.0F );
-	 }
-	 break;
-      default:
-         _mesa_error( ctx, GL_INVALID_ENUM, "glPixelMap(map)" );
+   case GL_PIXEL_MAP_S_TO_S:
+      /* special case */
+      ctx->PixelMaps.StoS.Size = mapsize;
+      for (i = 0; i < mapsize; i++) {
+         ctx->PixelMaps.StoS.Map[i] = (GLfloat)IROUND(values[i]);
+      }
+      break;
+   case GL_PIXEL_MAP_I_TO_I:
+      /* special case */
+      ctx->PixelMaps.ItoI.Size = mapsize;
+      for (i = 0; i < mapsize; i++) {
+         ctx->PixelMaps.ItoI.Map[i] = values[i];
+      }
+      break;
+   default:
+      /* general case */
+      pm->Size = mapsize;
+      for (i = 0; i < mapsize; i++) {
+         GLfloat val = CLAMP(values[i], 0.0F, 1.0F);
+         pm->Map[i] = val;
+         pm->Map8[i] = (GLint) (val * 255.0F);
+      }
    }
 }
 
@@ -349,7 +150,7 @@ _mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values )
 
    if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) {
       /* test that mapsize is a power of two */
-      if (_mesa_bitcount((GLuint) mapsize) != 1) {
+      if (!_mesa_is_pow_two(mapsize)) {
 	 _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" );
          return;
       }
@@ -362,7 +163,7 @@ _mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values )
       GLubyte *buf;
       /* Note, need to use DefaultPacking and Unpack's buffer object */
       ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj;
-      if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1,
+      if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
                                      GL_INTENSITY, GL_FLOAT, values)) {
          _mesa_error(ctx, GL_INVALID_OPERATION,
                      "glPixelMapfv(invalid PBO access)");
@@ -385,7 +186,7 @@ _mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values )
       return;
    }
 
-   pixelmap(ctx, map, mapsize, values);
+   store_pixelmap(ctx, map, mapsize, values);
 
    if (ctx->Unpack.BufferObj->Name) {
       ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
@@ -394,7 +195,6 @@ _mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values )
 }
 
 
-
 void GLAPIENTRY
 _mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values )
 {
@@ -409,7 +209,7 @@ _mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values )
 
    if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) {
       /* test that mapsize is a power of two */
-      if (_mesa_bitcount((GLuint) mapsize) != 1) {
+      if (!_mesa_is_pow_two(mapsize)) {
 	 _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" );
          return;
       }
@@ -422,7 +222,7 @@ _mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values )
       GLubyte *buf;
       /* Note, need to use DefaultPacking and Unpack's buffer object */
       ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj;
-      if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1,
+      if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
                                      GL_INTENSITY, GL_UNSIGNED_INT, values)) {
          _mesa_error(ctx, GL_INVALID_OPERATION,
                      "glPixelMapuiv(invalid PBO access)");
@@ -464,11 +264,10 @@ _mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values )
                               ctx->Unpack.BufferObj);
    }
 
-   pixelmap(ctx, map, mapsize, fvalues);
+   store_pixelmap(ctx, map, mapsize, fvalues);
 }
 
 
-
 void GLAPIENTRY
 _mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values )
 {
@@ -483,7 +282,7 @@ _mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values )
 
    if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) {
       /* test that mapsize is a power of two */
-      if (_mesa_bitcount((GLuint) mapsize) != 1) {
+      if (!_mesa_is_pow_two(mapsize)) {
 	 _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" );
          return;
       }
@@ -496,7 +295,7 @@ _mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values )
       GLubyte *buf;
       /* Note, need to use DefaultPacking and Unpack's buffer object */
       ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj;
-      if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1,
+      if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
                                      GL_INTENSITY, GL_UNSIGNED_SHORT,
                                      values)) {
          _mesa_error(ctx, GL_INVALID_OPERATION,
@@ -520,7 +319,7 @@ _mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values )
       return;
    }
 
-    /* convert to floats */
+   /* convert to floats */
    if (map == GL_PIXEL_MAP_I_TO_I || map == GL_PIXEL_MAP_S_TO_S) {
       GLint i;
       for (i = 0; i < mapsize; i++) {
@@ -539,40 +338,7 @@ _mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values )
                               ctx->Unpack.BufferObj);
    }
 
-   pixelmap(ctx, map, mapsize, fvalues);
-}
-
-
-/**
- * Return size of the named map.
- */
-static GLuint
-get_map_size(GLcontext *ctx, GLenum map)
-{
-   switch (map) {
-      case GL_PIXEL_MAP_I_TO_I:
-         return ctx->Pixel.MapItoIsize;
-      case GL_PIXEL_MAP_S_TO_S:
-         return ctx->Pixel.MapStoSsize;
-      case GL_PIXEL_MAP_I_TO_R:
-         return ctx->Pixel.MapItoRsize;
-      case GL_PIXEL_MAP_I_TO_G:
-         return ctx->Pixel.MapItoGsize;
-      case GL_PIXEL_MAP_I_TO_B:
-         return ctx->Pixel.MapItoBsize;
-      case GL_PIXEL_MAP_I_TO_A:
-         return ctx->Pixel.MapItoAsize;
-      case GL_PIXEL_MAP_R_TO_R:
-         return ctx->Pixel.MapRtoRsize;
-      case GL_PIXEL_MAP_G_TO_G:
-         return ctx->Pixel.MapGtoGsize;
-      case GL_PIXEL_MAP_B_TO_B:
-         return ctx->Pixel.MapBtoBsize;
-      case GL_PIXEL_MAP_A_TO_A:
-         return ctx->Pixel.MapAtoAsize;
-      default:
-         return 0;
-   }
+   store_pixelmap(ctx, map, mapsize, fvalues);
 }
 
 
@@ -581,16 +347,24 @@ _mesa_GetPixelMapfv( GLenum map, GLfloat *values )
 {
    GET_CURRENT_CONTEXT(ctx);
    GLuint mapsize, i;
+   const struct gl_pixelmap *pm;
+
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   mapsize = get_map_size(ctx, map);
+   pm = get_pixelmap(ctx, map);
+   if (!pm) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapfv(map)");
+      return;
+   }
+
+   mapsize = pm->Size;
 
    if (ctx->Pack.BufferObj->Name) {
       /* pack pixelmap into PBO */
       GLubyte *buf;
       /* Note, need to use DefaultPacking and Pack's buffer object */
       ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj;
-      if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1,
+      if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
                                      GL_INTENSITY, GL_FLOAT, values)) {
          _mesa_error(ctx, GL_INVALID_OPERATION,
                      "glGetPixelMapfv(invalid PBO access)");
@@ -613,43 +387,14 @@ _mesa_GetPixelMapfv( GLenum map, GLfloat *values )
       return;
    }
 
-   switch (map) {
-      case GL_PIXEL_MAP_I_TO_I:
-         for (i = 0; i < mapsize; i++) {
-	    values[i] = (GLfloat) ctx->Pixel.MapItoI[i];
-	 }
-	 break;
-      case GL_PIXEL_MAP_S_TO_S:
-         for (i = 0; i < mapsize; i++) {
-	    values[i] = (GLfloat) ctx->Pixel.MapStoS[i];
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_R:
-         MEMCPY(values, ctx->Pixel.MapItoR, mapsize * sizeof(GLfloat));
-	 break;
-      case GL_PIXEL_MAP_I_TO_G:
-         MEMCPY(values, ctx->Pixel.MapItoG, mapsize * sizeof(GLfloat));
-	 break;
-      case GL_PIXEL_MAP_I_TO_B:
-         MEMCPY(values, ctx->Pixel.MapItoB, mapsize * sizeof(GLfloat));
-	 break;
-      case GL_PIXEL_MAP_I_TO_A:
-         MEMCPY(values, ctx->Pixel.MapItoA, mapsize * sizeof(GLfloat));
-	 break;
-      case GL_PIXEL_MAP_R_TO_R:
-         MEMCPY(values, ctx->Pixel.MapRtoR, mapsize * sizeof(GLfloat));
-	 break;
-      case GL_PIXEL_MAP_G_TO_G:
-         MEMCPY(values, ctx->Pixel.MapGtoG, mapsize * sizeof(GLfloat));
-	 break;
-      case GL_PIXEL_MAP_B_TO_B:
-         MEMCPY(values, ctx->Pixel.MapBtoB, mapsize * sizeof(GLfloat));
-	 break;
-      case GL_PIXEL_MAP_A_TO_A:
-         MEMCPY(values, ctx->Pixel.MapAtoA, mapsize * sizeof(GLfloat));
-	 break;
-      default:
-         _mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" );
+   if (map == GL_PIXEL_MAP_S_TO_S) {
+      /* special case */
+      for (i = 0; i < mapsize; i++) {
+         values[i] = (GLfloat) ctx->PixelMaps.StoS.Map[i];
+      }
+   }
+   else {
+      MEMCPY(values, pm->Map, mapsize * sizeof(GLfloat));
    }
 
    if (ctx->Pack.BufferObj->Name) {
@@ -664,16 +409,23 @@ _mesa_GetPixelMapuiv( GLenum map, GLuint *values )
 {
    GET_CURRENT_CONTEXT(ctx);
    GLint mapsize, i;
+   const struct gl_pixelmap *pm;
+
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   mapsize = get_map_size(ctx, map);
+   pm = get_pixelmap(ctx, map);
+   if (!pm) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapuiv(map)");
+      return;
+   }
+   mapsize = pm->Size;
 
    if (ctx->Pack.BufferObj->Name) {
       /* pack pixelmap into PBO */
       GLubyte *buf;
       /* Note, need to use DefaultPacking and Pack's buffer object */
       ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj;
-      if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1,
+      if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
                                      GL_INTENSITY, GL_UNSIGNED_INT, values)) {
          _mesa_error(ctx, GL_INVALID_OPERATION,
                      "glGetPixelMapuiv(invalid PBO access)");
@@ -696,55 +448,14 @@ _mesa_GetPixelMapuiv( GLenum map, GLuint *values )
       return;
    }
 
-   switch (map) {
-      case GL_PIXEL_MAP_I_TO_I:
-         MEMCPY(values, ctx->Pixel.MapItoI, mapsize * sizeof(GLint));
-	 break;
-      case GL_PIXEL_MAP_S_TO_S:
-         MEMCPY(values, ctx->Pixel.MapStoS, mapsize * sizeof(GLint));
-	 break;
-      case GL_PIXEL_MAP_I_TO_R:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoR[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_G:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoG[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_B:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoB[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_A:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoA[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_R_TO_R:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_UINT( ctx->Pixel.MapRtoR[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_G_TO_G:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_UINT( ctx->Pixel.MapGtoG[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_B_TO_B:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_UINT( ctx->Pixel.MapBtoB[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_A_TO_A:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_UINT( ctx->Pixel.MapAtoA[i] );
-	 }
-	 break;
-      default:
-         _mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" );
+   if (map == GL_PIXEL_MAP_S_TO_S) {
+      /* special case */
+      MEMCPY(values, ctx->PixelMaps.StoS.Map, mapsize * sizeof(GLint));
+   }
+   else {
+      for (i = 0; i < mapsize; i++) {
+         values[i] = FLOAT_TO_UINT( pm->Map[i] );
+      }
    }
 
    if (ctx->Pack.BufferObj->Name) {
@@ -759,16 +470,23 @@ _mesa_GetPixelMapusv( GLenum map, GLushort *values )
 {
    GET_CURRENT_CONTEXT(ctx);
    GLint mapsize, i;
+   const struct gl_pixelmap *pm;
+
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   mapsize = get_map_size(ctx, map);
+   pm = get_pixelmap(ctx, map);
+   if (!pm) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapusv(map)");
+      return;
+   }
+   mapsize = pm ? pm->Size : 0;
 
    if (ctx->Pack.BufferObj->Name) {
       /* pack pixelmap into PBO */
       GLubyte *buf;
       /* Note, need to use DefaultPacking and Pack's buffer object */
       ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj;
-      if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1,
+      if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
                                      GL_INTENSITY, GL_UNSIGNED_SHORT,
                                      values)) {
          _mesa_error(ctx, GL_INVALID_OPERATION,
@@ -793,58 +511,21 @@ _mesa_GetPixelMapusv( GLenum map, GLushort *values )
    }
 
    switch (map) {
-      case GL_PIXEL_MAP_I_TO_I:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = (GLushort) ctx->Pixel.MapItoI[i];
-	 }
-	 break;
-      case GL_PIXEL_MAP_S_TO_S:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = (GLushort) ctx->Pixel.MapStoS[i];
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_R:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoR[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_G:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoG[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_B:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoB[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_I_TO_A:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoA[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_R_TO_R:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapRtoR[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_G_TO_G:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapGtoG[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_B_TO_B:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapBtoB[i] );
-	 }
-	 break;
-      case GL_PIXEL_MAP_A_TO_A:
-	 for (i = 0; i < mapsize; i++) {
-	    values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapAtoA[i] );
-	 }
-	 break;
-      default:
-         _mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" );
+   /* special cases */
+   case GL_PIXEL_MAP_I_TO_I:
+      for (i = 0; i < mapsize; i++) {
+         values[i] = (GLushort) CLAMP(ctx->PixelMaps.ItoI.Map[i], 0.0, 65535.);
+      }
+      break;
+   case GL_PIXEL_MAP_S_TO_S:
+      for (i = 0; i < mapsize; i++) {
+         values[i] = (GLushort) CLAMP(ctx->PixelMaps.StoS.Map[i], 0.0, 65535.);
+      }
+      break;
+   default:
+      for (i = 0; i < mapsize; i++) {
+         CLAMPED_FLOAT_TO_USHORT(values[i], pm->Map[i] );
+      }
    }
 
    if (ctx->Pack.BufferObj->Name) {
@@ -1040,16 +721,16 @@ _mesa_PixelTransferf( GLenum pname, GLfloat param )
          ctx->Pixel.PostConvolutionBias[2] = param;
 	 break;
       case GL_POST_CONVOLUTION_ALPHA_SCALE:
-         if (ctx->Pixel.PostConvolutionScale[2] == param)
+         if (ctx->Pixel.PostConvolutionScale[3] == param)
 	    return;
 	 FLUSH_VERTICES(ctx, _NEW_PIXEL);
-         ctx->Pixel.PostConvolutionScale[2] = param;
+         ctx->Pixel.PostConvolutionScale[3] = param;
 	 break;
       case GL_POST_CONVOLUTION_ALPHA_BIAS:
-         if (ctx->Pixel.PostConvolutionBias[2] == param)
+         if (ctx->Pixel.PostConvolutionBias[3] == param)
 	    return;
 	 FLUSH_VERTICES(ctx, _NEW_PIXEL);
-         ctx->Pixel.PostConvolutionBias[2] = param;
+         ctx->Pixel.PostConvolutionBias[3] = param;
 	 break;
       default:
          _mesa_error( ctx, GL_INVALID_ENUM, "glPixelTransfer(pname)" );
@@ -1066,827 +747,6 @@ _mesa_PixelTransferi( GLenum pname, GLint param )
 
 
 
-/**********************************************************************/
-/*****                  Pixel processing functions               ******/
-/**********************************************************************/
-
-/*
- * Apply scale and bias factors to an array of RGBA pixels.
- */
-void
-_mesa_scale_and_bias_rgba(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
-                          GLfloat rScale, GLfloat gScale,
-                          GLfloat bScale, GLfloat aScale,
-                          GLfloat rBias, GLfloat gBias,
-                          GLfloat bBias, GLfloat aBias)
-{
-   (void) ctx;
-
-   if (rScale != 1.0 || rBias != 0.0) {
-      GLuint i;
-      for (i = 0; i < n; i++) {
-         rgba[i][RCOMP] = rgba[i][RCOMP] * rScale + rBias;
-      }
-   }
-   if (gScale != 1.0 || gBias != 0.0) {
-      GLuint i;
-      for (i = 0; i < n; i++) {
-         rgba[i][GCOMP] = rgba[i][GCOMP] * gScale + gBias;
-      }
-   }
-   if (bScale != 1.0 || bBias != 0.0) {
-      GLuint i;
-      for (i = 0; i < n; i++) {
-         rgba[i][BCOMP] = rgba[i][BCOMP] * bScale + bBias;
-      }
-   }
-   if (aScale != 1.0 || aBias != 0.0) {
-      GLuint i;
-      for (i = 0; i < n; i++) {
-         rgba[i][ACOMP] = rgba[i][ACOMP] * aScale + aBias;
-      }
-   }
-}
-
-
-/*
- * Apply pixel mapping to an array of floating point RGBA pixels.
- */
-void
-_mesa_map_rgba( const GLcontext *ctx, GLuint n, GLfloat rgba[][4] )
-{
-   const GLfloat rscale = (GLfloat) (ctx->Pixel.MapRtoRsize - 1);
-   const GLfloat gscale = (GLfloat) (ctx->Pixel.MapGtoGsize - 1);
-   const GLfloat bscale = (GLfloat) (ctx->Pixel.MapBtoBsize - 1);
-   const GLfloat ascale = (GLfloat) (ctx->Pixel.MapAtoAsize - 1);
-   const GLfloat *rMap = ctx->Pixel.MapRtoR;
-   const GLfloat *gMap = ctx->Pixel.MapGtoG;
-   const GLfloat *bMap = ctx->Pixel.MapBtoB;
-   const GLfloat *aMap = ctx->Pixel.MapAtoA;
-   GLuint i;
-   for (i=0;i<n;i++) {
-      GLfloat r = CLAMP(rgba[i][RCOMP], 0.0F, 1.0F);
-      GLfloat g = CLAMP(rgba[i][GCOMP], 0.0F, 1.0F);
-      GLfloat b = CLAMP(rgba[i][BCOMP], 0.0F, 1.0F);
-      GLfloat a = CLAMP(rgba[i][ACOMP], 0.0F, 1.0F);
-      rgba[i][RCOMP] = rMap[IROUND(r * rscale)];
-      rgba[i][GCOMP] = gMap[IROUND(g * gscale)];
-      rgba[i][BCOMP] = bMap[IROUND(b * bscale)];
-      rgba[i][ACOMP] = aMap[IROUND(a * ascale)];
-   }
-}
-
-
-/*
- * Apply the color matrix and post color matrix scaling and biasing.
- */
-void
-_mesa_transform_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4])
-{
-   const GLfloat rs = ctx->Pixel.PostColorMatrixScale[0];
-   const GLfloat rb = ctx->Pixel.PostColorMatrixBias[0];
-   const GLfloat gs = ctx->Pixel.PostColorMatrixScale[1];
-   const GLfloat gb = ctx->Pixel.PostColorMatrixBias[1];
-   const GLfloat bs = ctx->Pixel.PostColorMatrixScale[2];
-   const GLfloat bb = ctx->Pixel.PostColorMatrixBias[2];
-   const GLfloat as = ctx->Pixel.PostColorMatrixScale[3];
-   const GLfloat ab = ctx->Pixel.PostColorMatrixBias[3];
-   const GLfloat *m = ctx->ColorMatrixStack.Top->m;
-   GLuint i;
-   for (i = 0; i < n; i++) {
-      const GLfloat r = rgba[i][RCOMP];
-      const GLfloat g = rgba[i][GCOMP];
-      const GLfloat b = rgba[i][BCOMP];
-      const GLfloat a = rgba[i][ACOMP];
-      rgba[i][RCOMP] = (m[0] * r + m[4] * g + m[ 8] * b + m[12] * a) * rs + rb;
-      rgba[i][GCOMP] = (m[1] * r + m[5] * g + m[ 9] * b + m[13] * a) * gs + gb;
-      rgba[i][BCOMP] = (m[2] * r + m[6] * g + m[10] * b + m[14] * a) * bs + bb;
-      rgba[i][ACOMP] = (m[3] * r + m[7] * g + m[11] * b + m[15] * a) * as + ab;
-   }
-}
-
-
-/**
- * Apply a color table lookup to an array of floating point RGBA colors.
- */
-void
-_mesa_lookup_rgba_float(const struct gl_color_table *table,
-                        GLuint n, GLfloat rgba[][4])
-{
-   if (!table->Table || table->Size == 0)
-      return;
-
-   switch (table->Format) {
-      case GL_INTENSITY:
-         /* replace RGBA with I */
-         if (table->Type == GL_FLOAT) {
-            const GLint max = table->Size - 1;
-            const GLfloat scale = (GLfloat) max;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint j = IROUND(rgba[i][RCOMP] * scale);
-               GLfloat c = lut[CLAMP(j, 0, max)];
-               rgba[i][RCOMP] = rgba[i][GCOMP] =
-                  rgba[i][BCOMP] = rgba[i][ACOMP] = c;
-            }
-         }
-         else {
-            const GLint max = table->Size - 1;
-            const GLfloat scale = (GLfloat) max;
-            const GLchan *lut = (const GLchan *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint j = IROUND(rgba[i][RCOMP] * scale);
-               GLfloat c = CHAN_TO_FLOAT(lut[CLAMP(j, 0, max)]);
-               rgba[i][RCOMP] = rgba[i][GCOMP] =
-                  rgba[i][BCOMP] = rgba[i][ACOMP] = c;
-            }
-         }
-         break;
-      case GL_LUMINANCE:
-         /* replace RGB with L */
-         if (table->Type == GL_FLOAT) {
-            const GLint max = table->Size - 1;
-            const GLfloat scale = (GLfloat) max;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint j = IROUND(rgba[i][RCOMP] * scale);
-               GLfloat c = lut[CLAMP(j, 0, max)];
-               rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = c;
-            }
-         }
-         else {
-            const GLint max = table->Size - 1;
-            const GLfloat scale = (GLfloat) max;
-            const GLchan *lut = (const GLchan *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint j = IROUND(rgba[i][RCOMP] * scale);
-               GLfloat c = CHAN_TO_FLOAT(lut[CLAMP(j, 0, max)]);
-               rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = c;
-            }
-         }
-         break;
-      case GL_ALPHA:
-         /* replace A with A */
-         if (table->Type == GL_FLOAT) {
-            const GLint max = table->Size - 1;
-            const GLfloat scale = (GLfloat) max;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint j = IROUND(rgba[i][ACOMP] * scale);
-               rgba[i][ACOMP] = lut[CLAMP(j, 0, max)];
-            }
-         }
-         else {
-            const GLint max = table->Size - 1;
-            const GLfloat scale = (GLfloat) max;
-            const GLchan *lut = (const GLchan *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint j = IROUND(rgba[i][ACOMP] * scale);
-               rgba[i][ACOMP] = CHAN_TO_FLOAT(lut[CLAMP(j, 0, max)]);
-            }
-         }
-         break;
-      case GL_LUMINANCE_ALPHA:
-         /* replace RGBA with LLLA */
-         if (table->Type == GL_FLOAT) {
-            const GLint max = table->Size - 1;
-            const GLfloat scale = (GLfloat) max;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint jL = IROUND(rgba[i][RCOMP] * scale);
-               GLint jA = IROUND(rgba[i][ACOMP] * scale);
-               GLfloat luminance, alpha;
-               jL = CLAMP(jL, 0, max);
-               jA = CLAMP(jA, 0, max);
-               luminance = lut[jL * 2 + 0];
-               alpha     = lut[jA * 2 + 1];
-               rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = luminance;
-               rgba[i][ACOMP] = alpha;;
-            }
-         }
-         else {
-            const GLint max = table->Size - 1;
-            const GLfloat scale = (GLfloat) max;
-            const GLchan *lut = (const GLchan *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint jL = IROUND(rgba[i][RCOMP] * scale);
-               GLint jA = IROUND(rgba[i][ACOMP] * scale);
-               GLfloat luminance, alpha;
-               jL = CLAMP(jL, 0, max);
-               jA = CLAMP(jA, 0, max);
-               luminance = CHAN_TO_FLOAT(lut[jL * 2 + 0]);
-               alpha     = CHAN_TO_FLOAT(lut[jA * 2 + 1]);
-               rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = luminance;
-               rgba[i][ACOMP] = alpha;;
-            }
-         }
-         break;
-      case GL_RGB:
-         /* replace RGB with RGB */
-         if (table->Type == GL_FLOAT) {
-            const GLint max = table->Size - 1;
-            const GLfloat scale = (GLfloat) max;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint jR = IROUND(rgba[i][RCOMP] * scale);
-               GLint jG = IROUND(rgba[i][GCOMP] * scale);
-               GLint jB = IROUND(rgba[i][BCOMP] * scale);
-               jR = CLAMP(jR, 0, max);
-               jG = CLAMP(jG, 0, max);
-               jB = CLAMP(jB, 0, max);
-               rgba[i][RCOMP] = lut[jR * 3 + 0];
-               rgba[i][GCOMP] = lut[jG * 3 + 1];
-               rgba[i][BCOMP] = lut[jB * 3 + 2];
-            }
-         }
-         else {
-            const GLint max = table->Size - 1;
-            const GLfloat scale = (GLfloat) max;
-            const GLchan *lut = (const GLchan *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint jR = IROUND(rgba[i][RCOMP] * scale);
-               GLint jG = IROUND(rgba[i][GCOMP] * scale);
-               GLint jB = IROUND(rgba[i][BCOMP] * scale);
-               jR = CLAMP(jR, 0, max);
-               jG = CLAMP(jG, 0, max);
-               jB = CLAMP(jB, 0, max);
-               rgba[i][RCOMP] = CHAN_TO_FLOAT(lut[jR * 3 + 0]);
-               rgba[i][GCOMP] = CHAN_TO_FLOAT(lut[jG * 3 + 1]);
-               rgba[i][BCOMP] = CHAN_TO_FLOAT(lut[jB * 3 + 2]);
-            }
-         }
-         break;
-      case GL_RGBA:
-         /* replace RGBA with RGBA */
-         if (table->Type == GL_FLOAT) {
-            const GLint max = table->Size - 1;
-            const GLfloat scale = (GLfloat) max;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint jR = IROUND(rgba[i][RCOMP] * scale);
-               GLint jG = IROUND(rgba[i][GCOMP] * scale);
-               GLint jB = IROUND(rgba[i][BCOMP] * scale);
-               GLint jA = IROUND(rgba[i][ACOMP] * scale);
-               jR = CLAMP(jR, 0, max);
-               jG = CLAMP(jG, 0, max);
-               jB = CLAMP(jB, 0, max);
-               jA = CLAMP(jA, 0, max);
-               rgba[i][RCOMP] = lut[jR * 4 + 0];
-               rgba[i][GCOMP] = lut[jG * 4 + 1];
-               rgba[i][BCOMP] = lut[jB * 4 + 2];
-               rgba[i][ACOMP] = lut[jA * 4 + 3];
-            }
-         }
-         else {
-            const GLint max = table->Size - 1;
-            const GLfloat scale = (GLfloat) max;
-            const GLchan *lut = (const GLchan *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint jR = IROUND(rgba[i][RCOMP] * scale);
-               GLint jG = IROUND(rgba[i][GCOMP] * scale);
-               GLint jB = IROUND(rgba[i][BCOMP] * scale);
-               GLint jA = IROUND(rgba[i][ACOMP] * scale);
-               jR = CLAMP(jR, 0, max);
-               jG = CLAMP(jG, 0, max);
-               jB = CLAMP(jB, 0, max);
-               jA = CLAMP(jA, 0, max);
-               rgba[i][RCOMP] = CHAN_TO_FLOAT(lut[jR * 4 + 0]);
-               rgba[i][GCOMP] = CHAN_TO_FLOAT(lut[jG * 4 + 1]);
-               rgba[i][BCOMP] = CHAN_TO_FLOAT(lut[jB * 4 + 2]);
-               rgba[i][ACOMP] = CHAN_TO_FLOAT(lut[jA * 4 + 3]);
-            }
-         }
-         break;
-      default:
-         _mesa_problem(NULL, "Bad format in _mesa_lookup_rgba_float");
-         return;
-   }
-}
-
-
-
-/**
- * Apply a color table lookup to an array of GLchan RGBA colors.
- */
-void
-_mesa_lookup_rgba_chan(const struct gl_color_table *table,
-                       GLuint n, GLchan rgba[][4])
-{
-   if (!table->Table || table->Size == 0)
-      return;
-
-   switch (table->Format) {
-      case GL_INTENSITY:
-         /* replace RGBA with I */
-         if (table->Type == GL_FLOAT) {
-            const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint j = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-               GLchan c;
-               CLAMPED_FLOAT_TO_CHAN(c, lut[j]);
-               rgba[i][RCOMP] = rgba[i][GCOMP] =
-                  rgba[i][BCOMP] = rgba[i][ACOMP] = c;
-            }
-         }
-         else {
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
-            if (table->Size == 256) {
-               /* common case */
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  const GLchan c = lut[rgba[i][RCOMP]];
-                  rgba[i][RCOMP] = rgba[i][GCOMP] =
-                     rgba[i][BCOMP] = rgba[i][ACOMP] = c;
-               }
-            }
-            else
-#endif
-            {
-               const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLint j = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-                  rgba[i][RCOMP] = rgba[i][GCOMP] =
-                     rgba[i][BCOMP] = rgba[i][ACOMP] = lut[j];
-               }
-            }
-         }
-         break;
-      case GL_LUMINANCE:
-         /* replace RGB with L */
-         if (table->Type == GL_FLOAT) {
-            const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint j = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-               GLchan c;
-               CLAMPED_FLOAT_TO_CHAN(c, lut[j]);
-               rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = c;
-            }
-         }
-         else {
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
-            if (table->Size == 256) {
-               /* common case */
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  const GLchan c = lut[rgba[i][RCOMP]];
-                  rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = c;
-               }
-            }
-            else
-#endif
-            {
-               const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLint j = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-                  rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = lut[j];
-               }
-            }
-         }
-         break;
-      case GL_ALPHA:
-         /* replace A with A */
-         if (table->Type == GL_FLOAT) {
-            const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint j = IROUND((GLfloat) rgba[i][ACOMP] * scale);
-               GLchan c;
-               CLAMPED_FLOAT_TO_CHAN(c, lut[j]);
-               rgba[i][ACOMP] = c;
-            }
-         }
-         else {
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
-            if (table->Size == 256) {
-               /* common case */
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  rgba[i][ACOMP] = lut[rgba[i][ACOMP]];
-               }
-            }
-            else
-#endif
-            {
-               const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLint j = IROUND((GLfloat) rgba[i][ACOMP] * scale);
-                  rgba[i][ACOMP] = lut[j];
-               }
-            }
-         }
-         break;
-      case GL_LUMINANCE_ALPHA:
-         /* replace RGBA with LLLA */
-         if (table->Type == GL_FLOAT) {
-            const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint jL = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-               GLint jA = IROUND((GLfloat) rgba[i][ACOMP] * scale);
-               GLchan luminance, alpha;
-               CLAMPED_FLOAT_TO_CHAN(luminance, lut[jL * 2 + 0]);
-               CLAMPED_FLOAT_TO_CHAN(alpha, lut[jA * 2 + 1]);
-               rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = luminance;
-               rgba[i][ACOMP] = alpha;;
-            }
-         }
-         else {
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
-            if (table->Size == 256) {
-               /* common case */
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLchan l = lut[rgba[i][RCOMP] * 2 + 0];
-                  GLchan a = lut[rgba[i][ACOMP] * 2 + 1];;
-                  rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = l;
-                  rgba[i][ACOMP] = a;
-               }
-            }
-            else
-#endif
-            {
-               const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLint jL = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-                  GLint jA = IROUND((GLfloat) rgba[i][ACOMP] * scale);
-                  GLchan luminance = lut[jL * 2 + 0];
-                  GLchan alpha     = lut[jA * 2 + 1];
-                  rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = luminance;
-                  rgba[i][ACOMP] = alpha;
-               }
-            }
-         }
-         break;
-      case GL_RGB:
-         /* replace RGB with RGB */
-         if (table->Type == GL_FLOAT) {
-            const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint jR = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-               GLint jG = IROUND((GLfloat) rgba[i][GCOMP] * scale);
-               GLint jB = IROUND((GLfloat) rgba[i][BCOMP] * scale);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][RCOMP], lut[jR * 3 + 0]);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][GCOMP], lut[jG * 3 + 1]);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][BCOMP], lut[jB * 3 + 2]);
-            }
-         }
-         else {
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
-            if (table->Size == 256) {
-               /* common case */
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  rgba[i][RCOMP] = lut[rgba[i][RCOMP] * 3 + 0];
-                  rgba[i][GCOMP] = lut[rgba[i][GCOMP] * 3 + 1];
-                  rgba[i][BCOMP] = lut[rgba[i][BCOMP] * 3 + 2];
-               }
-            }
-            else
-#endif
-            {
-               const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLint jR = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-                  GLint jG = IROUND((GLfloat) rgba[i][GCOMP] * scale);
-                  GLint jB = IROUND((GLfloat) rgba[i][BCOMP] * scale);
-                  rgba[i][RCOMP] = lut[jR * 3 + 0];
-                  rgba[i][GCOMP] = lut[jG * 3 + 1];
-                  rgba[i][BCOMP] = lut[jB * 3 + 2];
-               }
-            }
-         }
-         break;
-      case GL_RGBA:
-         /* replace RGBA with RGBA */
-         if (table->Type == GL_FLOAT) {
-            const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint jR = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-               GLint jG = IROUND((GLfloat) rgba[i][GCOMP] * scale);
-               GLint jB = IROUND((GLfloat) rgba[i][BCOMP] * scale);
-               GLint jA = IROUND((GLfloat) rgba[i][ACOMP] * scale);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][RCOMP], lut[jR * 4 + 0]);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][GCOMP], lut[jG * 4 + 1]);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][BCOMP], lut[jB * 4 + 2]);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][ACOMP], lut[jA * 4 + 3]);
-            }
-         }
-         else {
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
-            if (table->Size == 256) {
-               /* common case */
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  rgba[i][RCOMP] = lut[rgba[i][RCOMP] * 4 + 0];
-                  rgba[i][GCOMP] = lut[rgba[i][GCOMP] * 4 + 1];
-                  rgba[i][BCOMP] = lut[rgba[i][BCOMP] * 4 + 2];
-                  rgba[i][ACOMP] = lut[rgba[i][ACOMP] * 4 + 3];
-               }
-            }
-            else
-#endif
-            {
-               const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-               const GLfloat *lut = (const GLfloat *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLint jR = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-                  GLint jG = IROUND((GLfloat) rgba[i][GCOMP] * scale);
-                  GLint jB = IROUND((GLfloat) rgba[i][BCOMP] * scale);
-                  GLint jA = IROUND((GLfloat) rgba[i][ACOMP] * scale);
-                  CLAMPED_FLOAT_TO_CHAN(rgba[i][RCOMP], lut[jR * 4 + 0]);
-                  CLAMPED_FLOAT_TO_CHAN(rgba[i][GCOMP], lut[jG * 4 + 1]);
-                  CLAMPED_FLOAT_TO_CHAN(rgba[i][BCOMP], lut[jB * 4 + 2]);
-                  CLAMPED_FLOAT_TO_CHAN(rgba[i][ACOMP], lut[jA * 4 + 3]);
-               }
-            }
-         }
-         break;
-      default:
-         _mesa_problem(NULL, "Bad format in _mesa_lookup_rgba_chan");
-         return;
-   }
-}
-
-
-
-/*
- * Apply color index shift and offset to an array of pixels.
- */
-void
-_mesa_shift_and_offset_ci( const GLcontext *ctx, GLuint n, GLuint indexes[] )
-{
-   GLint shift = ctx->Pixel.IndexShift;
-   GLint offset = ctx->Pixel.IndexOffset;
-   GLuint i;
-   if (shift > 0) {
-      for (i=0;i<n;i++) {
-         indexes[i] = (indexes[i] << shift) + offset;
-      }
-   }
-   else if (shift < 0) {
-      shift = -shift;
-      for (i=0;i<n;i++) {
-         indexes[i] = (indexes[i] >> shift) + offset;
-      }
-   }
-   else {
-      for (i=0;i<n;i++) {
-         indexes[i] = indexes[i] + offset;
-      }
-   }
-}
-
-
-/*
- * Apply color index mapping to color indexes.
- */
-void
-_mesa_map_ci( const GLcontext *ctx, GLuint n, GLuint index[] )
-{
-   GLuint mask = ctx->Pixel.MapItoIsize - 1;
-   GLuint i;
-   for (i=0;i<n;i++) {
-      index[i] = ctx->Pixel.MapItoI[ index[i] & mask ];
-   }
-}
-
-
-/*
- * Map color indexes to rgba values.
- */
-void
-_mesa_map_ci_to_rgba_chan( const GLcontext *ctx, GLuint n,
-                           const GLuint index[], GLchan rgba[][4] )
-{
-#if CHAN_BITS == 8
-   GLuint rmask = ctx->Pixel.MapItoRsize - 1;
-   GLuint gmask = ctx->Pixel.MapItoGsize - 1;
-   GLuint bmask = ctx->Pixel.MapItoBsize - 1;
-   GLuint amask = ctx->Pixel.MapItoAsize - 1;
-   const GLubyte *rMap = ctx->Pixel.MapItoR8;
-   const GLubyte *gMap = ctx->Pixel.MapItoG8;
-   const GLubyte *bMap = ctx->Pixel.MapItoB8;
-   const GLubyte *aMap = ctx->Pixel.MapItoA8;
-   GLuint i;
-   for (i=0;i<n;i++) {
-      rgba[i][RCOMP] = rMap[index[i] & rmask];
-      rgba[i][GCOMP] = gMap[index[i] & gmask];
-      rgba[i][BCOMP] = bMap[index[i] & bmask];
-      rgba[i][ACOMP] = aMap[index[i] & amask];
-   }
-#else
-   GLuint rmask = ctx->Pixel.MapItoRsize - 1;
-   GLuint gmask = ctx->Pixel.MapItoGsize - 1;
-   GLuint bmask = ctx->Pixel.MapItoBsize - 1;
-   GLuint amask = ctx->Pixel.MapItoAsize - 1;
-   const GLfloat *rMap = ctx->Pixel.MapItoR;
-   const GLfloat *gMap = ctx->Pixel.MapItoG;
-   const GLfloat *bMap = ctx->Pixel.MapItoB;
-   const GLfloat *aMap = ctx->Pixel.MapItoA;
-   GLuint i;
-   for (i=0;i<n;i++) {
-      CLAMPED_FLOAT_TO_CHAN(rgba[i][RCOMP], rMap[index[i] & rmask]);
-      CLAMPED_FLOAT_TO_CHAN(rgba[i][GCOMP], gMap[index[i] & gmask]);
-      CLAMPED_FLOAT_TO_CHAN(rgba[i][BCOMP], bMap[index[i] & bmask]);
-      CLAMPED_FLOAT_TO_CHAN(rgba[i][ACOMP], aMap[index[i] & amask]);
-   }
-#endif
-}
-
-
-/*
- * Map color indexes to float rgba values.
- */
-void
-_mesa_map_ci_to_rgba( const GLcontext *ctx, GLuint n,
-                      const GLuint index[], GLfloat rgba[][4] )
-{
-   GLuint rmask = ctx->Pixel.MapItoRsize - 1;
-   GLuint gmask = ctx->Pixel.MapItoGsize - 1;
-   GLuint bmask = ctx->Pixel.MapItoBsize - 1;
-   GLuint amask = ctx->Pixel.MapItoAsize - 1;
-   const GLfloat *rMap = ctx->Pixel.MapItoR;
-   const GLfloat *gMap = ctx->Pixel.MapItoG;
-   const GLfloat *bMap = ctx->Pixel.MapItoB;
-   const GLfloat *aMap = ctx->Pixel.MapItoA;
-   GLuint i;
-   for (i=0;i<n;i++) {
-      rgba[i][RCOMP] = rMap[index[i] & rmask];
-      rgba[i][GCOMP] = gMap[index[i] & gmask];
-      rgba[i][BCOMP] = bMap[index[i] & bmask];
-      rgba[i][ACOMP] = aMap[index[i] & amask];
-   }
-}
-
-
-/*
- * Map 8-bit color indexes to rgb values.
- */
-void
-_mesa_map_ci8_to_rgba( const GLcontext *ctx, GLuint n, const GLubyte index[],
-                       GLchan rgba[][4] )
-{
-#if CHAN_BITS == 8
-   GLuint rmask = ctx->Pixel.MapItoRsize - 1;
-   GLuint gmask = ctx->Pixel.MapItoGsize - 1;
-   GLuint bmask = ctx->Pixel.MapItoBsize - 1;
-   GLuint amask = ctx->Pixel.MapItoAsize - 1;
-   const GLubyte *rMap = ctx->Pixel.MapItoR8;
-   const GLubyte *gMap = ctx->Pixel.MapItoG8;
-   const GLubyte *bMap = ctx->Pixel.MapItoB8;
-   const GLubyte *aMap = ctx->Pixel.MapItoA8;
-   GLuint i;
-   for (i=0;i<n;i++) {
-      rgba[i][RCOMP] = rMap[index[i] & rmask];
-      rgba[i][GCOMP] = gMap[index[i] & gmask];
-      rgba[i][BCOMP] = bMap[index[i] & bmask];
-      rgba[i][ACOMP] = aMap[index[i] & amask];
-   }
-#else
-   GLuint rmask = ctx->Pixel.MapItoRsize - 1;
-   GLuint gmask = ctx->Pixel.MapItoGsize - 1;
-   GLuint bmask = ctx->Pixel.MapItoBsize - 1;
-   GLuint amask = ctx->Pixel.MapItoAsize - 1;
-   const GLfloat *rMap = ctx->Pixel.MapItoR;
-   const GLfloat *gMap = ctx->Pixel.MapItoG;
-   const GLfloat *bMap = ctx->Pixel.MapItoB;
-   const GLfloat *aMap = ctx->Pixel.MapItoA;
-   GLuint i;
-   for (i=0;i<n;i++) {
-      CLAMPED_FLOAT_TO_CHAN(rgba[i][RCOMP], rMap[index[i] & rmask]);
-      CLAMPED_FLOAT_TO_CHAN(rgba[i][GCOMP], gMap[index[i] & gmask]);
-      CLAMPED_FLOAT_TO_CHAN(rgba[i][BCOMP], bMap[index[i] & bmask]);
-      CLAMPED_FLOAT_TO_CHAN(rgba[i][ACOMP], aMap[index[i] & amask]);
-   }
-#endif
-}
-
-
-void
-_mesa_shift_and_offset_stencil( const GLcontext *ctx, GLuint n,
-                                GLstencil stencil[] )
-{
-   GLuint i;
-   GLint shift = ctx->Pixel.IndexShift;
-   GLint offset = ctx->Pixel.IndexOffset;
-   if (shift > 0) {
-      for (i=0;i<n;i++) {
-         stencil[i] = (stencil[i] << shift) + offset;
-      }
-   }
-   else if (shift < 0) {
-      shift = -shift;
-      for (i=0;i<n;i++) {
-         stencil[i] = (stencil[i] >> shift) + offset;
-      }
-   }
-   else {
-      for (i=0;i<n;i++) {
-         stencil[i] = stencil[i] + offset;
-      }
-   }
-
-}
-
-
-void
-_mesa_map_stencil( const GLcontext *ctx, GLuint n, GLstencil stencil[] )
-{
-   GLuint mask = ctx->Pixel.MapStoSsize - 1;
-   GLuint i;
-   for (i=0;i<n;i++) {
-      stencil[i] = ctx->Pixel.MapStoS[ stencil[i] & mask ];
-   }
-}
-
-
-
-/*
- * This function converts an array of GLchan colors to GLfloat colors.
- * Most importantly, it undoes the non-uniform quantization of pixel
- * values introduced when we convert shallow (< 8 bit) pixel values
- * to GLubytes in the ctx->Driver.ReadRGBASpan() functions.
- * This fixes a number of OpenGL conformance failures when running on
- * 16bpp displays, for example.
- */
-void
-_mesa_chan_to_float_span(const GLcontext *ctx, GLuint n,
-                         CONST GLchan rgba[][4], GLfloat rgbaf[][4])
-{
-#if CHAN_TYPE == GL_FLOAT
-   MEMCPY(rgbaf, rgba, n * 4 * sizeof(GLfloat));
-#else
-   const GLuint rShift = CHAN_BITS - ctx->Visual.redBits;
-   const GLuint gShift = CHAN_BITS - ctx->Visual.greenBits;
-   const GLuint bShift = CHAN_BITS - ctx->Visual.blueBits;
-   GLuint aShift;
-   const GLfloat rScale = 1.0F / (GLfloat) ((1 << ctx->Visual.redBits  ) - 1);
-   const GLfloat gScale = 1.0F / (GLfloat) ((1 << ctx->Visual.greenBits) - 1);
-   const GLfloat bScale = 1.0F / (GLfloat) ((1 << ctx->Visual.blueBits ) - 1);
-   GLfloat aScale;
-   GLuint i;
-
-   if (ctx->Visual.alphaBits > 0) {
-      aShift = CHAN_BITS - ctx->Visual.alphaBits;
-      aScale = 1.0F / (GLfloat) ((1 << ctx->Visual.alphaBits) - 1);
-   }
-   else {
-      aShift = 0;
-      aScale = 1.0F / CHAN_MAXF;
-   }
-
-   for (i = 0; i < n; i++) {
-      const GLint r = rgba[i][RCOMP] >> rShift;
-      const GLint g = rgba[i][GCOMP] >> gShift;
-      const GLint b = rgba[i][BCOMP] >> bShift;
-      const GLint a = rgba[i][ACOMP] >> aShift;
-      rgbaf[i][RCOMP] = (GLfloat) r * rScale;
-      rgbaf[i][GCOMP] = (GLfloat) g * gScale;
-      rgbaf[i][BCOMP] = (GLfloat) b * bScale;
-      rgbaf[i][ACOMP] = (GLfloat) a * aScale;
-   }
-#endif
-}
-
 /**********************************************************************/
 /*****                    State Management                        *****/
 /**********************************************************************/
@@ -1912,7 +772,7 @@ update_image_transfer_state(GLcontext *ctx)
    if (ctx->Pixel.MapColorFlag)
       mask |= IMAGE_MAP_COLOR_BIT;
 
-   if (ctx->Pixel.ColorTableEnabled)
+   if (ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION])
       mask |= IMAGE_COLOR_TABLE_BIT;
 
    if (ctx->Pixel.Convolution1DEnabled ||
@@ -1931,7 +791,7 @@ update_image_transfer_state(GLcontext *ctx)
       }
    }
 
-   if (ctx->Pixel.PostConvolutionColorTableEnabled)
+   if (ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION])
       mask |= IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT;
 
    if (ctx->ColorMatrixStack.Top->type != MATRIX_IDENTITY ||
@@ -1945,7 +805,7 @@ update_image_transfer_state(GLcontext *ctx)
        ctx->Pixel.PostColorMatrixBias[3]  != 0.0F)
       mask |= IMAGE_COLOR_MATRIX_BIT;
 
-   if (ctx->Pixel.PostColorMatrixColorTableEnabled)
+   if (ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX])
       mask |= IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT;
 
    if (ctx->Pixel.HistogramEnabled)
@@ -1958,6 +818,9 @@ update_image_transfer_state(GLcontext *ctx)
 }
 
 
+/**
+ * Update mesa pixel transfer derived state.
+ */
 void _mesa_update_pixel( GLcontext *ctx, GLuint new_state )
 {
    if (new_state & _NEW_COLOR_MATRIX)
@@ -1965,7 +828,7 @@ void _mesa_update_pixel( GLcontext *ctx, GLuint new_state )
 
    /* References ColorMatrix.type (derived above).
     */
-   if (new_state & _IMAGE_NEW_TRANSFER_STATE)
+   if (new_state & _MESA_NEW_TRANSFER_STATE)
       update_image_transfer_state(ctx);
 }
 
@@ -1974,6 +837,14 @@ void _mesa_update_pixel( GLcontext *ctx, GLuint new_state )
 /*****                      Initialization                        *****/
 /**********************************************************************/
 
+static void
+init_pixelmap(struct gl_pixelmap *map)
+{
+   map->Size = 1;
+   map->Map[0] = 0.0;
+   map->Map8[0] = 0;
+}
+
 
 /**
  * Initialize the context's PIXEL attribute group.
@@ -2000,46 +871,25 @@ _mesa_init_pixel( GLcontext *ctx )
    ctx->Pixel.ZoomY = 1.0;
    ctx->Pixel.MapColorFlag = GL_FALSE;
    ctx->Pixel.MapStencilFlag = GL_FALSE;
-   ctx->Pixel.MapStoSsize = 1;
-   ctx->Pixel.MapItoIsize = 1;
-   ctx->Pixel.MapItoRsize = 1;
-   ctx->Pixel.MapItoGsize = 1;
-   ctx->Pixel.MapItoBsize = 1;
-   ctx->Pixel.MapItoAsize = 1;
-   ctx->Pixel.MapRtoRsize = 1;
-   ctx->Pixel.MapGtoGsize = 1;
-   ctx->Pixel.MapBtoBsize = 1;
-   ctx->Pixel.MapAtoAsize = 1;
-   ctx->Pixel.MapStoS[0] = 0;
-   ctx->Pixel.MapItoI[0] = 0;
-   ctx->Pixel.MapItoR[0] = 0.0;
-   ctx->Pixel.MapItoG[0] = 0.0;
-   ctx->Pixel.MapItoB[0] = 0.0;
-   ctx->Pixel.MapItoA[0] = 0.0;
-   ctx->Pixel.MapItoR8[0] = 0;
-   ctx->Pixel.MapItoG8[0] = 0;
-   ctx->Pixel.MapItoB8[0] = 0;
-   ctx->Pixel.MapItoA8[0] = 0;
-   ctx->Pixel.MapRtoR[0] = 0.0;
-   ctx->Pixel.MapGtoG[0] = 0.0;
-   ctx->Pixel.MapBtoB[0] = 0.0;
-   ctx->Pixel.MapAtoA[0] = 0.0;
+   init_pixelmap(&ctx->PixelMaps.StoS);
+   init_pixelmap(&ctx->PixelMaps.ItoI);
+   init_pixelmap(&ctx->PixelMaps.ItoR);
+   init_pixelmap(&ctx->PixelMaps.ItoG);
+   init_pixelmap(&ctx->PixelMaps.ItoB);
+   init_pixelmap(&ctx->PixelMaps.ItoA);
+   init_pixelmap(&ctx->PixelMaps.RtoR);
+   init_pixelmap(&ctx->PixelMaps.GtoG);
+   init_pixelmap(&ctx->PixelMaps.BtoB);
+   init_pixelmap(&ctx->PixelMaps.AtoA);
    ctx->Pixel.HistogramEnabled = GL_FALSE;
    ctx->Pixel.MinMaxEnabled = GL_FALSE;
-   ctx->Pixel.PixelTextureEnabled = GL_FALSE;
-   ctx->Pixel.FragmentRgbSource = GL_PIXEL_GROUP_COLOR_SGIS;
-   ctx->Pixel.FragmentAlphaSource = GL_PIXEL_GROUP_COLOR_SGIS;
    ASSIGN_4V(ctx->Pixel.PostColorMatrixScale, 1.0, 1.0, 1.0, 1.0);
    ASSIGN_4V(ctx->Pixel.PostColorMatrixBias, 0.0, 0.0, 0.0, 0.0);
-   ASSIGN_4V(ctx->Pixel.ColorTableScale, 1.0, 1.0, 1.0, 1.0);
-   ASSIGN_4V(ctx->Pixel.ColorTableBias, 0.0, 0.0, 0.0, 0.0);
-   ASSIGN_4V(ctx->Pixel.PCCTscale, 1.0, 1.0, 1.0, 1.0);
-   ASSIGN_4V(ctx->Pixel.PCCTbias, 0.0, 0.0, 0.0, 0.0);
-   ASSIGN_4V(ctx->Pixel.PCMCTscale, 1.0, 1.0, 1.0, 1.0);
-   ASSIGN_4V(ctx->Pixel.PCMCTbias, 0.0, 0.0, 0.0, 0.0);
-   ctx->Pixel.ColorTableEnabled = GL_FALSE;
-   ctx->Pixel.PostConvolutionColorTableEnabled = GL_FALSE;
-   ctx->Pixel.PostColorMatrixColorTableEnabled = GL_FALSE;
+   for (i = 0; i < COLORTABLE_MAX; i++) {
+      ASSIGN_4V(ctx->Pixel.ColorTableScale[i], 1.0, 1.0, 1.0, 1.0);
+      ASSIGN_4V(ctx->Pixel.ColorTableBias[i], 0.0, 0.0, 0.0, 0.0);
+      ctx->Pixel.ColorTableEnabled[i] = GL_FALSE;
+   }
    ctx->Pixel.Convolution1DEnabled = GL_FALSE;
    ctx->Pixel.Convolution2DEnabled = GL_FALSE;
    ctx->Pixel.Separable2DEnabled = GL_FALSE;
@@ -2060,61 +910,11 @@ _mesa_init_pixel( GLcontext *ctx )
    ASSIGN_4V(ctx->Pixel.TextureColorTableScale, 1.0, 1.0, 1.0, 1.0);
    ASSIGN_4V(ctx->Pixel.TextureColorTableBias, 0.0, 0.0, 0.0, 0.0);
 
-   /* Pixel transfer */
-   ctx->Pack.Alignment = 4;
-   ctx->Pack.RowLength = 0;
-   ctx->Pack.ImageHeight = 0;
-   ctx->Pack.SkipPixels = 0;
-   ctx->Pack.SkipRows = 0;
-   ctx->Pack.SkipImages = 0;
-   ctx->Pack.SwapBytes = GL_FALSE;
-   ctx->Pack.LsbFirst = GL_FALSE;
-   ctx->Pack.ClientStorage = GL_FALSE;
-   ctx->Pack.Invert = GL_FALSE;
-#if FEATURE_EXT_pixel_buffer_object
-   ctx->Pack.BufferObj = ctx->Array.NullBufferObj;
-#endif
-   ctx->Unpack.Alignment = 4;
-   ctx->Unpack.RowLength = 0;
-   ctx->Unpack.ImageHeight = 0;
-   ctx->Unpack.SkipPixels = 0;
-   ctx->Unpack.SkipRows = 0;
-   ctx->Unpack.SkipImages = 0;
-   ctx->Unpack.SwapBytes = GL_FALSE;
-   ctx->Unpack.LsbFirst = GL_FALSE;
-   ctx->Unpack.ClientStorage = GL_FALSE;
-   ctx->Unpack.Invert = GL_FALSE;
-#if FEATURE_EXT_pixel_buffer_object
-   ctx->Unpack.BufferObj = ctx->Array.NullBufferObj;
-#endif
-
-   /*
-    * _mesa_unpack_image() returns image data in this format.  When we
-    * execute image commands (glDrawPixels(), glTexImage(), etc) from
-    * within display lists we have to be sure to set the current
-    * unpacking parameters to these values!
-    */
-   ctx->DefaultPacking.Alignment = 1;
-   ctx->DefaultPacking.RowLength = 0;
-   ctx->DefaultPacking.SkipPixels = 0;
-   ctx->DefaultPacking.SkipRows = 0;
-   ctx->DefaultPacking.ImageHeight = 0;
-   ctx->DefaultPacking.SkipImages = 0;
-   ctx->DefaultPacking.SwapBytes = GL_FALSE;
-   ctx->DefaultPacking.LsbFirst = GL_FALSE;
-   ctx->DefaultPacking.ClientStorage = GL_FALSE;
-   ctx->DefaultPacking.Invert = GL_FALSE;
-#if FEATURE_EXT_pixel_buffer_object
-   ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj;
-#endif
-
    if (ctx->Visual.doubleBufferMode) {
       ctx->Pixel.ReadBuffer = GL_BACK;
-      ctx->Pixel._ReadSrcMask = DD_BACK_LEFT_BIT;
    }
    else {
       ctx->Pixel.ReadBuffer = GL_FRONT;
-      ctx->Pixel._ReadSrcMask = DD_FRONT_LEFT_BIT;
    }
 
    /* Miscellaneous */