Basic work to support deep color channels:

  Replace GLubyte with GLchan
  Replace 255 with CHAN_MAX

23 files changed, 265 insertions, 241 deletions

diff --git a/src/mesa/main/accum.c b/src/mesa/main/accum.c
index 13d7acee579..43cf7574cd1 100644
--- a/src/mesa/main/accum.c
+++ b/src/mesa/main/accum.c
@@ -1,4 +1,4 @@
-/* $Id: accum.c,v 1.27 2000/10/17 00:42:02 brianp Exp $ */
+/* $Id: accum.c,v 1.28 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -63,7 +63,9 @@
  */
 
 
+#if CHAN_BITS == 8
 #define USE_OPTIMIZED_ACCUM   /* enable the optimization */
+#endif
 
 
 
@@ -139,7 +141,7 @@ _mesa_Accum( GLenum op, GLfloat value )
    GET_CURRENT_CONTEXT(ctx);
    GLuint xpos, ypos, width, height, width4;
    GLfloat acc_scale;
-   GLubyte rgba[MAX_WIDTH][4];
+   GLchan rgba[MAX_WIDTH][4];
    const GLuint colorMask = *((GLuint *) &ctx->Color.ColorMask);
    const GLint iChanMax = (1 << (sizeof(GLchan) * 8)) - 1;
    const GLfloat fChanMax = (1 << (sizeof(GLchan) * 8)) - 1;
@@ -387,7 +389,7 @@ _mesa_Accum( GLenum op, GLfloat value )
                   _mesa_mask_rgba_span( ctx, width, xpos, ypos, rgba );
                }
                (*ctx->Driver.WriteRGBASpan)( ctx, width, xpos, ypos, 
-                                             (const GLubyte (*)[4])rgba, NULL );
+                                             (const GLchan (*)[4])rgba, NULL );
                ypos++;
             }
          }
@@ -414,7 +416,7 @@ _mesa_Accum( GLenum op, GLfloat value )
                   _mesa_mask_rgba_span( ctx, width, xpos, ypos, rgba );
                }
                (*ctx->Driver.WriteRGBASpan)( ctx, width, xpos, ypos, 
-                                             (const GLubyte (*)[4])rgba, NULL );
+                                             (const GLchan (*)[4])rgba, NULL );
                ypos++;
             }
 	 }
diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c
index 9cf1d3c5099..2e970e9b08f 100644
--- a/src/mesa/main/attrib.c
+++ b/src/mesa/main/attrib.c
@@ -1,8 +1,8 @@
-/* $Id: attrib.c,v 1.28 2000/09/28 22:44:30 brianp Exp $ */
+/* $Id: attrib.c,v 1.29 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
- * Version:  3.3
+ * Version:  3.5
  * 
  * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
  * 
@@ -568,7 +568,7 @@ _mesa_PopAttrib(void)
             {
                GLenum oldDrawBuffer = ctx->Color.DrawBuffer;
                GLenum oldAlphaFunc = ctx->Color.AlphaFunc;
-               GLubyte oldAlphaRef = ctx->Color.AlphaRef;
+               GLchan oldAlphaRef = ctx->Color.AlphaRef;
                GLenum oldBlendSrc = ctx->Color.BlendSrcRGB;
                GLenum oldBlendDst = ctx->Color.BlendDstRGB;
 	       GLenum oldLogicOp = ctx->Color.LogicOp;
@@ -587,16 +587,16 @@ _mesa_PopAttrib(void)
 		  ctx->Driver.LogicOpcode( ctx, ctx->Color.LogicOp );
                }
                if (ctx->Visual.RGBAflag) {
-                  GLubyte r = (GLint) (ctx->Color.ClearColor[0] * 255.0F);
-                  GLubyte g = (GLint) (ctx->Color.ClearColor[1] * 255.0F);
-                  GLubyte b = (GLint) (ctx->Color.ClearColor[2] * 255.0F);
-                  GLubyte a = (GLint) (ctx->Color.ClearColor[3] * 255.0F);
+                  GLchan r = (GLint) (ctx->Color.ClearColor[0] * CHAN_MAXF);
+                  GLchan g = (GLint) (ctx->Color.ClearColor[1] * CHAN_MAXF);
+                  GLchan b = (GLint) (ctx->Color.ClearColor[2] * CHAN_MAXF);
+                  GLchan a = (GLint) (ctx->Color.ClearColor[3] * CHAN_MAXF);
                   (*ctx->Driver.ClearColor)( ctx, r, g, b, a );
                   if ((ctx->Color.AlphaFunc != oldAlphaFunc ||
                        ctx->Color.AlphaRef != oldAlphaRef) &&
                       ctx->Driver.AlphaFunc)
                      (*ctx->Driver.AlphaFunc)( ctx, ctx->Color.AlphaFunc,
-                                               ctx->Color.AlphaRef / 255.0F);
+                                              ctx->Color.AlphaRef / CHAN_MAXF);
                   if (ctx->Driver.ColorMask) {
                      (*ctx->Driver.ColorMask)(ctx,
                                               ctx->Color.ColorMask[0],
diff --git a/src/mesa/main/blend.c b/src/mesa/main/blend.c
index 8ea3297b7d0..b1ab7c5f288 100644
--- a/src/mesa/main/blend.c
+++ b/src/mesa/main/blend.c
@@ -1,4 +1,4 @@
-/* $Id: blend.c,v 1.20 2000/10/23 00:16:28 gareth Exp $ */
+/* $Id: blend.c,v 1.21 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -332,7 +332,7 @@ _mesa_BlendColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha )
  */
 static void _BLENDAPI
 blend_transparency( GLcontext *ctx, GLuint n, const GLubyte mask[],
-                    GLubyte rgba[][4], CONST GLubyte dest[][4] )
+                    GLchan rgba[][4], CONST GLchan dest[][4] )
 {
    GLuint i;
    ASSERT(ctx->Color.BlendEquation==GL_FUNC_ADD_EXT);
@@ -342,7 +342,7 @@ blend_transparency( GLcontext *ctx, GLuint n, const GLubyte mask[],
 
    for (i=0;i<n;i++) {
       if (mask[i]) {
-         const GLint t = rgba[i][ACOMP];  /* t in [0,255] */
+         const GLint t = rgba[i][ACOMP];  /* t in [0, CHAN_MAX] */
          if (t == 0) {
             /* 0% alpha */
             rgba[i][RCOMP] = dest[i][RCOMP];
@@ -371,7 +371,11 @@ blend_transparency( GLcontext *ctx, GLuint n, const GLubyte mask[],
 #else
             /* This satisfies Glean and should be reasonably fast */
             /* Contributed by Nathan Hand */
+#if CHAN_BITS == 8
 #define DIV255(X)  (((X) << 8) + (X) + 256) >> 16
+#else
+XXX todo
+#endif
             const GLint s = CHAN_MAX - t;
             const GLint r = DIV255(rgba[i][RCOMP] * t + dest[i][RCOMP] * s);
             const GLint g = DIV255(rgba[i][GCOMP] * t + dest[i][GCOMP] * s);
@@ -383,10 +387,10 @@ blend_transparency( GLcontext *ctx, GLuint n, const GLubyte mask[],
             ASSERT(g <= CHAN_MAX);
             ASSERT(b <= CHAN_MAX);
             ASSERT(a <= CHAN_MAX);
-            rgba[i][RCOMP] = (GLubyte) r;
-            rgba[i][GCOMP] = (GLubyte) g;
-            rgba[i][BCOMP] = (GLubyte) b;
-            rgba[i][ACOMP] = (GLubyte) a;
+            rgba[i][RCOMP] = (GLchan) r;
+            rgba[i][GCOMP] = (GLchan) g;
+            rgba[i][BCOMP] = (GLchan) b;
+            rgba[i][ACOMP] = (GLchan) a;
          }
       }
    }
@@ -399,7 +403,7 @@ blend_transparency( GLcontext *ctx, GLuint n, const GLubyte mask[],
  */
 static void _BLENDAPI
 blend_add( GLcontext *ctx, GLuint n, const GLubyte mask[],
-           GLubyte rgba[][4], CONST GLubyte dest[][4] )
+           GLchan rgba[][4], CONST GLchan dest[][4] )
 {
    GLuint i;
    ASSERT(ctx->Color.BlendEquation==GL_FUNC_ADD_EXT);
@@ -413,10 +417,10 @@ blend_add( GLcontext *ctx, GLuint n, const GLubyte mask[],
          GLint g = rgba[i][GCOMP] + dest[i][GCOMP];
          GLint b = rgba[i][BCOMP] + dest[i][BCOMP];
          GLint a = rgba[i][ACOMP] + dest[i][ACOMP];
-         rgba[i][RCOMP] = (GLubyte) MIN2( r, CHAN_MAX );
-         rgba[i][GCOMP] = (GLubyte) MIN2( g, CHAN_MAX );
-         rgba[i][BCOMP] = (GLubyte) MIN2( b, CHAN_MAX );
-         rgba[i][ACOMP] = (GLubyte) MIN2( a, CHAN_MAX );
+         rgba[i][RCOMP] = (GLchan) MIN2( r, CHAN_MAX );
+         rgba[i][GCOMP] = (GLchan) MIN2( g, CHAN_MAX );
+         rgba[i][BCOMP] = (GLchan) MIN2( b, CHAN_MAX );
+         rgba[i][ACOMP] = (GLchan) MIN2( a, CHAN_MAX );
       }
    }
 }
@@ -428,7 +432,7 @@ blend_add( GLcontext *ctx, GLuint n, const GLubyte mask[],
  */
 static void _BLENDAPI
 blend_min( GLcontext *ctx, GLuint n, const GLubyte mask[],
-           GLubyte rgba[][4], CONST GLubyte dest[][4] )
+           GLchan rgba[][4], CONST GLchan dest[][4] )
 {
    GLuint i;
    ASSERT(ctx->Color.BlendEquation==GL_MIN_EXT);
@@ -436,10 +440,10 @@ blend_min( GLcontext *ctx, GLuint n, const GLubyte mask[],
 
    for (i=0;i<n;i++) {
       if (mask[i]) {
-         rgba[i][RCOMP] = (GLubyte) MIN2( rgba[i][RCOMP], dest[i][RCOMP] );
-         rgba[i][GCOMP] = (GLubyte) MIN2( rgba[i][GCOMP], dest[i][GCOMP] );
-         rgba[i][BCOMP] = (GLubyte) MIN2( rgba[i][BCOMP], dest[i][BCOMP] );
-         rgba[i][ACOMP] = (GLubyte) MIN2( rgba[i][ACOMP], dest[i][ACOMP] );
+         rgba[i][RCOMP] = (GLchan) MIN2( rgba[i][RCOMP], dest[i][RCOMP] );
+         rgba[i][GCOMP] = (GLchan) MIN2( rgba[i][GCOMP], dest[i][GCOMP] );
+         rgba[i][BCOMP] = (GLchan) MIN2( rgba[i][BCOMP], dest[i][BCOMP] );
+         rgba[i][ACOMP] = (GLchan) MIN2( rgba[i][ACOMP], dest[i][ACOMP] );
       }
    }
 }
@@ -451,7 +455,7 @@ blend_min( GLcontext *ctx, GLuint n, const GLubyte mask[],
  */
 static void _BLENDAPI
 blend_max( GLcontext *ctx, GLuint n, const GLubyte mask[],
-           GLubyte rgba[][4], CONST GLubyte dest[][4] )
+           GLchan rgba[][4], CONST GLchan dest[][4] )
 {
    GLuint i;
    ASSERT(ctx->Color.BlendEquation==GL_MAX_EXT);
@@ -459,10 +463,10 @@ blend_max( GLcontext *ctx, GLuint n, const GLubyte mask[],
 
    for (i=0;i<n;i++) {
       if (mask[i]) {
-         rgba[i][RCOMP] = (GLubyte) MAX2( rgba[i][RCOMP], dest[i][RCOMP] );
-         rgba[i][GCOMP] = (GLubyte) MAX2( rgba[i][GCOMP], dest[i][GCOMP] );
-         rgba[i][BCOMP] = (GLubyte) MAX2( rgba[i][BCOMP], dest[i][BCOMP] );
-         rgba[i][ACOMP] = (GLubyte) MAX2( rgba[i][ACOMP], dest[i][ACOMP] );
+         rgba[i][RCOMP] = (GLchan) MAX2( rgba[i][RCOMP], dest[i][RCOMP] );
+         rgba[i][GCOMP] = (GLchan) MAX2( rgba[i][GCOMP], dest[i][GCOMP] );
+         rgba[i][BCOMP] = (GLchan) MAX2( rgba[i][BCOMP], dest[i][BCOMP] );
+         rgba[i][ACOMP] = (GLchan) MAX2( rgba[i][ACOMP], dest[i][ACOMP] );
       }
    }
 }
@@ -474,7 +478,7 @@ blend_max( GLcontext *ctx, GLuint n, const GLubyte mask[],
  */
 static void _BLENDAPI
 blend_modulate( GLcontext *ctx, GLuint n, const GLubyte mask[],
-                GLubyte rgba[][4], CONST GLubyte dest[][4] )
+                GLchan rgba[][4], CONST GLchan dest[][4] )
 {
    GLuint i;
    (void) ctx;
@@ -485,10 +489,10 @@ blend_modulate( GLcontext *ctx, GLuint n, const GLubyte mask[],
          GLint g = (rgba[i][GCOMP] * dest[i][GCOMP]) >> 8;
          GLint b = (rgba[i][BCOMP] * dest[i][BCOMP]) >> 8;
          GLint a = (rgba[i][ACOMP] * dest[i][ACOMP]) >> 8;
-         rgba[i][RCOMP] = (GLubyte) r;
-         rgba[i][GCOMP] = (GLubyte) g;
-         rgba[i][BCOMP] = (GLubyte) b;
-         rgba[i][ACOMP] = (GLubyte) a;
+         rgba[i][RCOMP] = (GLchan) r;
+         rgba[i][GCOMP] = (GLchan) g;
+         rgba[i][BCOMP] = (GLchan) b;
+         rgba[i][ACOMP] = (GLchan) a;
       }
    }
 }
@@ -504,7 +508,7 @@ blend_modulate( GLcontext *ctx, GLuint n, const GLubyte mask[],
  */
 static void _BLENDAPI
 blend_general( GLcontext *ctx, GLuint n, const GLubyte mask[],
-               GLubyte rgba[][4], CONST GLubyte dest[][4] )
+               GLchan rgba[][4], CONST GLchan dest[][4] )
 {
    GLfloat rscale = 1.0F / CHAN_MAXF;
    GLfloat gscale = 1.0F / CHAN_MAXF;
@@ -814,10 +818,10 @@ blend_general( GLcontext *ctx, GLuint n, const GLubyte mask[],
          }
 
          /* final clamping */
-         rgba[i][RCOMP] = (GLubyte) (GLint) CLAMP( r, 0.0F, CHAN_MAXF );
-         rgba[i][GCOMP] = (GLubyte) (GLint) CLAMP( g, 0.0F, CHAN_MAXF );
-         rgba[i][BCOMP] = (GLubyte) (GLint) CLAMP( b, 0.0F, CHAN_MAXF );
-         rgba[i][ACOMP] = (GLubyte) (GLint) CLAMP( a, 0.0F, CHAN_MAXF );
+         rgba[i][RCOMP] = (GLchan) (GLint) CLAMP( r, 0.0F, CHAN_MAXF );
+         rgba[i][GCOMP] = (GLchan) (GLint) CLAMP( g, 0.0F, CHAN_MAXF );
+         rgba[i][BCOMP] = (GLchan) (GLint) CLAMP( b, 0.0F, CHAN_MAXF );
+         rgba[i][ACOMP] = (GLchan) (GLint) CLAMP( a, 0.0F, CHAN_MAXF );
       }
    }
 }
@@ -890,9 +894,9 @@ static void set_blend_function( GLcontext *ctx )
  */
 void
 _mesa_blend_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
-                  GLubyte rgba[][4], const GLubyte mask[] )
+                  GLchan rgba[][4], const GLubyte mask[] )
 {
-   GLubyte dest[MAX_WIDTH][4];
+   GLchan dest[MAX_WIDTH][4];
 
    /* Check if device driver can do the work */
    if (ctx->Color.BlendEquation==GL_LOGIC_OP &&
@@ -906,7 +910,7 @@ _mesa_blend_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
    if (!ctx->Color.BlendFunc)
       set_blend_function(ctx);
 
-   (*ctx->Color.BlendFunc)( ctx, n, mask, rgba, (const GLubyte (*)[4])dest );
+   (*ctx->Color.BlendFunc)( ctx, n, mask, rgba, (const GLchan (*)[4])dest );
 }
 
 
@@ -921,9 +925,9 @@ _mesa_blend_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
 void
 _mesa_blend_pixels( GLcontext *ctx,
                     GLuint n, const GLint x[], const GLint y[],
-                    GLubyte rgba[][4], const GLubyte mask[] )
+                    GLchan rgba[][4], const GLchan mask[] )
 {
-   GLubyte dest[PB_SIZE][4];
+   GLchan dest[PB_SIZE][4];
 
    /* Check if device driver can do the work */
    if (ctx->Color.BlendEquation==GL_LOGIC_OP &&
@@ -940,5 +944,5 @@ _mesa_blend_pixels( GLcontext *ctx,
    if (!ctx->Color.BlendFunc)
       set_blend_function(ctx);
 
-   (*ctx->Color.BlendFunc)( ctx, n, mask, rgba, (const GLubyte (*)[4])dest );
+   (*ctx->Color.BlendFunc)( ctx, n, mask, rgba, (const GLchan (*)[4])dest );
 }
diff --git a/src/mesa/main/blend.h b/src/mesa/main/blend.h
index c3ceb700752..7df8845668e 100644
--- a/src/mesa/main/blend.h
+++ b/src/mesa/main/blend.h
@@ -1,10 +1,10 @@
-/* $Id: blend.h,v 1.4 2000/02/24 22:04:03 brianp Exp $ */
+/* $Id: blend.h,v 1.5 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
- * Version:  3.3
+ * Version:  3.5
  * 
- * Copyright (C) 2000  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2000  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"),
@@ -35,13 +35,13 @@
 
 extern void
 _mesa_blend_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
-                  GLubyte rgba[][4], const GLubyte mask[] );
+                  GLchan rgba[][4], const GLubyte mask[] );
 
 
 extern void
 _mesa_blend_pixels( GLcontext *ctx,
                     GLuint n, const GLint x[], const GLint y[],
-                    GLubyte rgba[][4], const GLubyte mask[] );
+                    GLchan rgba[][4], const GLubyte mask[] );
 
 
 extern void
diff --git a/src/mesa/main/buffers.c b/src/mesa/main/buffers.c
index a928adc6126..7d6528291b5 100644
--- a/src/mesa/main/buffers.c
+++ b/src/mesa/main/buffers.c
@@ -1,4 +1,4 @@
-/* $Id: buffers.c,v 1.14 2000/10/19 18:17:19 brianp Exp $ */
+/* $Id: buffers.c,v 1.15 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -72,10 +72,10 @@ _mesa_ClearColor( GLclampf red, GLclampf green,
    ctx->Color.ClearColor[3] = CLAMP( alpha, 0.0F, 1.0F );
 
    if (ctx->Visual.RGBAflag) {
-      GLubyte r = (GLint) (ctx->Color.ClearColor[0] * 255.0F);
-      GLubyte g = (GLint) (ctx->Color.ClearColor[1] * 255.0F);
-      GLubyte b = (GLint) (ctx->Color.ClearColor[2] * 255.0F);
-      GLubyte a = (GLint) (ctx->Color.ClearColor[3] * 255.0F);
+      GLchan r = (GLint) (ctx->Color.ClearColor[0] * CHAN_MAXF);
+      GLchan g = (GLint) (ctx->Color.ClearColor[1] * CHAN_MAXF);
+      GLchan b = (GLint) (ctx->Color.ClearColor[2] * CHAN_MAXF);
+      GLchan a = (GLint) (ctx->Color.ClearColor[3] * CHAN_MAXF);
       (*ctx->Driver.ClearColor)( ctx, r, g, b, a );
    }
 }
@@ -96,13 +96,13 @@ clear_color_buffer_with_masking( GLcontext *ctx )
 
    if (ctx->Visual.RGBAflag) {
       /* RGBA mode */
-      const GLubyte r = (GLint) (ctx->Color.ClearColor[0] * 255.0F);
-      const GLubyte g = (GLint) (ctx->Color.ClearColor[1] * 255.0F);
-      const GLubyte b = (GLint) (ctx->Color.ClearColor[2] * 255.0F);
-      const GLubyte a = (GLint) (ctx->Color.ClearColor[3] * 255.0F);
+      const GLchan r = (GLint) (ctx->Color.ClearColor[0] * CHAN_MAXF);
+      const GLchan g = (GLint) (ctx->Color.ClearColor[1] * CHAN_MAXF);
+      const GLchan b = (GLint) (ctx->Color.ClearColor[2] * CHAN_MAXF);
+      const GLchan a = (GLint) (ctx->Color.ClearColor[3] * CHAN_MAXF);
       GLint i;
       for (i = 0; i < height; i++) {
-         GLubyte rgba[MAX_WIDTH][4];
+         GLchan rgba[MAX_WIDTH][4];
          GLint j;
          for (j=0; j<width; j++) {
             rgba[j][RCOMP] = r;
@@ -112,7 +112,7 @@ clear_color_buffer_with_masking( GLcontext *ctx )
          }
          _mesa_mask_rgba_span( ctx, width, x, y + i, rgba );
          (*ctx->Driver.WriteRGBASpan)( ctx, width, x, y + i,
-				       (CONST GLubyte (*)[4])rgba, NULL );
+				       (CONST GLchan (*)[4]) rgba, NULL );
       }
    }
    else {
@@ -147,11 +147,11 @@ clear_color_buffer(GLcontext *ctx)
 
    if (ctx->Visual.RGBAflag) {
       /* RGBA mode */
-      const GLubyte r = (GLint) (ctx->Color.ClearColor[0] * 255.0F);
-      const GLubyte g = (GLint) (ctx->Color.ClearColor[1] * 255.0F);
-      const GLubyte b = (GLint) (ctx->Color.ClearColor[2] * 255.0F);
-      const GLubyte a = (GLint) (ctx->Color.ClearColor[3] * 255.0F);
-      GLubyte span[MAX_WIDTH][4];
+      const GLchan r = (GLint) (ctx->Color.ClearColor[0] * CHAN_MAXF);
+      const GLchan g = (GLint) (ctx->Color.ClearColor[1] * CHAN_MAXF);
+      const GLchan b = (GLint) (ctx->Color.ClearColor[2] * CHAN_MAXF);
+      const GLchan a = (GLint) (ctx->Color.ClearColor[3] * CHAN_MAXF);
+      GLchan span[MAX_WIDTH][4];
       GLint i;
 
       ASSERT(colorMask == 0xffffffff);
@@ -164,7 +164,7 @@ clear_color_buffer(GLcontext *ctx)
       }
       for (i = 0; i < height; i++) {
          (*ctx->Driver.WriteRGBASpan)( ctx, width, x, y + i,
-                                       (CONST GLubyte (*)[4]) span, NULL );
+                                       (CONST GLchan (*)[4]) span, NULL );
       }
    }
    else {
@@ -172,7 +172,7 @@ clear_color_buffer(GLcontext *ctx)
       ASSERT(ctx->Color.IndexMask == ~0);
       if (ctx->Visual.IndexBits == 8) {
          /* 8-bit clear */
-         GLubyte span[MAX_WIDTH];
+         GLchan span[MAX_WIDTH];
          GLint i;
          MEMSET(span, ctx->Color.ClearIndex, width);
          for (i = 0; i < height; i++) {
diff --git a/src/mesa/main/colortab.c b/src/mesa/main/colortab.c
index bb7853e9162..06faa6279db 100644
--- a/src/mesa/main/colortab.c
+++ b/src/mesa/main/colortab.c
@@ -1,4 +1,4 @@
-/* $Id: colortab.c,v 1.21 2000/08/21 14:23:09 brianp Exp $ */
+/* $Id: colortab.c,v 1.22 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -102,23 +102,23 @@ base_colortab_format( GLenum format )
 void
 _mesa_init_colortable( struct gl_color_table *p )
 {
-   p->TableType = GL_UNSIGNED_BYTE;
+   p->FloatTable = GL_FALSE;
    /* allocate a width=1 table by default */
-   p->Table = CALLOC(4 * sizeof(GLubyte));
+   p->Table = CALLOC(4 * sizeof(GLchan));
    if (p->Table) {
-      GLubyte *t = (GLubyte *) p->Table;
-      t[0] = 255;
-      t[1] = 255;
-      t[2] = 255;
-      t[3] = 255;
+      GLchan *t = (GLchan *) p->Table;
+      t[0] = CHAN_MAX;
+      t[1] = CHAN_MAX;
+      t[2] = CHAN_MAX;
+      t[3] = CHAN_MAX;
    }
    p->Size = 1;
    p->IntFormat = GL_RGBA;
    p->Format = GL_RGBA;
-   p->RedSize = 8;
-   p->GreenSize = 8;
-   p->BlueSize = 8;
-   p->AlphaSize = 8;
+   p->RedSize = CHAN_BITS;
+   p->GreenSize = CHAN_BITS;
+   p->BlueSize = CHAN_BITS;
+   p->AlphaSize = CHAN_BITS;
    p->IntensitySize = 0;
    p->LuminanceSize = 0;
 }
@@ -146,7 +146,7 @@ set_component_sizes( struct gl_color_table *table )
          table->RedSize = 0;
          table->GreenSize = 0;
          table->BlueSize = 0;
-         table->AlphaSize = 8;
+         table->AlphaSize = CHAN_BITS;
          table->IntensitySize = 0;
          table->LuminanceSize = 0;
          break;
@@ -156,37 +156,37 @@ set_component_sizes( struct gl_color_table *table )
          table->BlueSize = 0;
          table->AlphaSize = 0;
          table->IntensitySize = 0;
-         table->LuminanceSize = 8;
+         table->LuminanceSize = CHAN_BITS;
          break;
       case GL_LUMINANCE_ALPHA:
          table->RedSize = 0;
          table->GreenSize = 0;
          table->BlueSize = 0;
-         table->AlphaSize = 8;
+         table->AlphaSize = CHAN_BITS;
          table->IntensitySize = 0;
-         table->LuminanceSize = 8;
+         table->LuminanceSize = CHAN_BITS;
          break;
       case GL_INTENSITY:
          table->RedSize = 0;
          table->GreenSize = 0;
          table->BlueSize = 0;
          table->AlphaSize = 0;
-         table->IntensitySize = 8;
+         table->IntensitySize = CHAN_BITS;
          table->LuminanceSize = 0;
          break;
       case GL_RGB:
-         table->RedSize = 8;
-         table->GreenSize = 8;
-         table->BlueSize = 8;
+         table->RedSize = CHAN_BITS;
+         table->GreenSize = CHAN_BITS;
+         table->BlueSize = CHAN_BITS;
          table->AlphaSize = 0;
          table->IntensitySize = 0;
          table->LuminanceSize = 0;
          break;
       case GL_RGBA:
-         table->RedSize = 8;
-         table->GreenSize = 8;
-         table->BlueSize = 8;
-         table->AlphaSize = 8;
+         table->RedSize = CHAN_BITS;
+         table->GreenSize = CHAN_BITS;
+         table->BlueSize = CHAN_BITS;
+         table->AlphaSize = CHAN_BITS;
          table->IntensitySize = 0;
          table->LuminanceSize = 0;
          break;
@@ -363,7 +363,7 @@ _mesa_ColorTable( GLenum target, GLenum internalFormat,
                                        format, type, data, &ctx->Unpack,
                                        0, GL_FALSE);
 
-         table->TableType = GL_FLOAT;
+         table->FloatTable = GL_TRUE;
          table->Table = MALLOC(comps * width * sizeof(GLfloat));
          if (!table->Table) {
             gl_error(ctx, GL_OUT_OF_MEMORY, "glColorTable");
@@ -415,9 +415,9 @@ _mesa_ColorTable( GLenum target, GLenum internalFormat,
          }
       }
       else {
-         /* store GLubyte table */
-         table->TableType = GL_UNSIGNED_BYTE;
-         table->Table = MALLOC(comps * width * sizeof(GLubyte));
+         /* store GLchan table */
+         table->FloatTable = GL_FALSE;
+         table->Table = MALLOC(comps * width * sizeof(GLchan));
          if (!table->Table) {
             gl_error(ctx, GL_OUT_OF_MEMORY, "glColorTable");
             return;
@@ -534,8 +534,8 @@ _mesa_ColorSubTable( GLenum target, GLsizei start,
       return;
    }
 
-   if (table->TableType == GL_UNSIGNED_BYTE) {
-      GLubyte *dest = (GLubyte *) table->Table + start * comps * sizeof(GLubyte);
+   if (!table->FloatTable) {
+      GLchan *dest = (GLchan *) table->Table + start * comps * sizeof(GLchan);
       _mesa_unpack_ubyte_color_span(ctx, count, table->Format, dest,
                                     format, type, data, &ctx->Unpack, 0);
    }
@@ -544,7 +544,7 @@ _mesa_ColorSubTable( GLenum target, GLsizei start,
       GLfloat *tableF;
       GLuint i;
 
-      ASSERT(table->TableType == GL_FLOAT);
+      ASSERT(table->FloatTable);
 
       _mesa_unpack_float_color_span(ctx, count, table->Format,
                                     tempTab,  /* dest */
@@ -617,7 +617,7 @@ void
 _mesa_CopyColorTable(GLenum target, GLenum internalformat,
                      GLint x, GLint y, GLsizei width)
 {
-   GLubyte data[MAX_WIDTH][4];
+   GLchan data[MAX_WIDTH][4];
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyColorTable");
 
@@ -646,7 +646,7 @@ void
 _mesa_CopyColorSubTable(GLenum target, GLsizei start,
                         GLint x, GLint y, GLsizei width)
 {
-   GLubyte data[MAX_WIDTH][4];
+   GLchan data[MAX_WIDTH][4];
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyColorSubTable");
 
@@ -676,7 +676,7 @@ _mesa_GetColorTable( GLenum target, GLenum format,
    GET_CURRENT_CONTEXT(ctx);
    struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
    struct gl_color_table *table = NULL;
-   GLubyte rgba[MAX_COLOR_TABLE_SIZE][4];
+   GLchan rgba[MAX_COLOR_TABLE_SIZE][4];
    GLint i;
 
    ASSERT_OUTSIDE_BEGIN_END(ctx, "glGetColorTable");
@@ -712,17 +712,17 @@ _mesa_GetColorTable( GLenum target, GLenum format,
 
    switch (table->Format) {
       case GL_ALPHA:
-         if (table->TableType == GL_FLOAT) {
+         if (table->FloatTable) {
             const GLfloat *tableF = (const GLfloat *) table->Table;
             for (i = 0; i < table->Size; i++) {
                rgba[i][RCOMP] = 0;
                rgba[i][GCOMP] = 0;
                rgba[i][BCOMP] = 0;
-               rgba[i][ACOMP] = (GLint) (tableF[i] * 255.0F);
+               rgba[i][ACOMP] = (GLint) (tableF[i] * CHAN_MAXF);
             }
          }
          else {
-            const GLubyte *tableUB = (const GLubyte *) table->Table;
+            const GLchan *tableUB = (const GLchan *) table->Table;
             for (i = 0; i < table->Size; i++) {
                rgba[i][RCOMP] = 0;
                rgba[i][GCOMP] = 0;
@@ -732,37 +732,37 @@ _mesa_GetColorTable( GLenum target, GLenum format,
          }
          break;
       case GL_LUMINANCE:
-         if (table->TableType == GL_FLOAT) {
+         if (table->FloatTable) {
             const GLfloat *tableF = (const GLfloat *) table->Table;
             for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = (GLint) (tableF[i] * 255.0F);
-               rgba[i][GCOMP] = (GLint) (tableF[i] * 255.0F);
-               rgba[i][BCOMP] = (GLint) (tableF[i] * 255.0F);
-               rgba[i][ACOMP] = 255;
+               rgba[i][RCOMP] = (GLint) (tableF[i] * CHAN_MAXF);
+               rgba[i][GCOMP] = (GLint) (tableF[i] * CHAN_MAXF);
+               rgba[i][BCOMP] = (GLint) (tableF[i] * CHAN_MAXF);
+               rgba[i][ACOMP] = CHAN_MAX;
             }
          }
          else {
-            const GLubyte *tableUB = (const GLubyte *) table->Table;
+            const GLchan *tableUB = (const GLchan *) table->Table;
             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] = 255;
+               rgba[i][ACOMP] = CHAN_MAX;
             }
          }
          break;
       case GL_LUMINANCE_ALPHA:
-         if (table->TableType == GL_FLOAT) {
+         if (table->FloatTable) {
             const GLfloat *tableF = (const GLfloat *) table->Table;
             for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = (GLint) (tableF[i*2+0] * 255.0F);
-               rgba[i][GCOMP] = (GLint) (tableF[i*2+0] * 255.0F);
-               rgba[i][BCOMP] = (GLint) (tableF[i*2+0] * 255.0F);
-               rgba[i][ACOMP] = (GLint) (tableF[i*2+1] * 255.0F);
+               rgba[i][RCOMP] = (GLint) (tableF[i*2+0] * CHAN_MAXF);
+               rgba[i][GCOMP] = (GLint) (tableF[i*2+0] * CHAN_MAXF);
+               rgba[i][BCOMP] = (GLint) (tableF[i*2+0] * CHAN_MAXF);
+               rgba[i][ACOMP] = (GLint) (tableF[i*2+1] * CHAN_MAXF);
             }
          }
          else {
-            const GLubyte *tableUB = (const GLubyte *) table->Table;
+            const GLchan *tableUB = (const GLchan *) table->Table;
             for (i = 0; i < table->Size; i++) {
                rgba[i][RCOMP] = tableUB[i*2+0];
                rgba[i][GCOMP] = tableUB[i*2+0];
@@ -772,17 +772,17 @@ _mesa_GetColorTable( GLenum target, GLenum format,
          }
          break;
       case GL_INTENSITY:
-         if (table->TableType == GL_FLOAT) {
+         if (table->FloatTable) {
             const GLfloat *tableF = (const GLfloat *) table->Table;
             for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = (GLint) (tableF[i] * 255.0F);
-               rgba[i][GCOMP] = (GLint) (tableF[i] * 255.0F);
-               rgba[i][BCOMP] = (GLint) (tableF[i] * 255.0F);
-               rgba[i][ACOMP] = (GLint) (tableF[i] * 255.0F);
+               rgba[i][RCOMP] = (GLint) (tableF[i] * CHAN_MAXF);
+               rgba[i][GCOMP] = (GLint) (tableF[i] * CHAN_MAXF);
+               rgba[i][BCOMP] = (GLint) (tableF[i] * CHAN_MAXF);
+               rgba[i][ACOMP] = (GLint) (tableF[i] * CHAN_MAXF);
             }
          }
          else {
-            const GLubyte *tableUB = (const GLubyte *) table->Table;
+            const GLchan *tableUB = (const GLchan *) table->Table;
             for (i = 0; i < table->Size; i++) {
                rgba[i][RCOMP] = tableUB[i];
                rgba[i][GCOMP] = tableUB[i];
@@ -792,37 +792,37 @@ _mesa_GetColorTable( GLenum target, GLenum format,
          }
          break;
       case GL_RGB:
-         if (table->TableType == GL_FLOAT) {
+         if (table->FloatTable) {
             const GLfloat *tableF = (const GLfloat *) table->Table;
             for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = (GLint) (tableF[i*3+0] * 255.0F);
-               rgba[i][GCOMP] = (GLint) (tableF[i*3+1] * 255.0F);
-               rgba[i][BCOMP] = (GLint) (tableF[i*3+2] * 255.0F);
-               rgba[i][ACOMP] = 255;
+               rgba[i][RCOMP] = (GLint) (tableF[i*3+0] * CHAN_MAXF);
+               rgba[i][GCOMP] = (GLint) (tableF[i*3+1] * CHAN_MAXF);
+               rgba[i][BCOMP] = (GLint) (tableF[i*3+2] * CHAN_MAXF);
+               rgba[i][ACOMP] = CHAN_MAX;
             }
          }
          else {
-            const GLubyte *tableUB = (const GLubyte *) table->Table;
+            const GLchan *tableUB = (const GLchan *) table->Table;
             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] = 255;
+               rgba[i][ACOMP] = CHAN_MAX;
             }
          }
          break;
       case GL_RGBA:
-         if (table->TableType == GL_FLOAT) {
+         if (table->FloatTable) {
             const GLfloat *tableF = (const GLfloat *) table->Table;
             for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = (GLint) (tableF[i*4+0] * 255.0F + 0.5F);
-               rgba[i][GCOMP] = (GLint) (tableF[i*4+1] * 255.0F + 0.5F);
-               rgba[i][BCOMP] = (GLint) (tableF[i*4+2] * 255.0F + 0.5F);
-               rgba[i][ACOMP] = (GLint) (tableF[i*4+3] * 255.0F + 0.5F);
+               rgba[i][RCOMP] = (GLint) (tableF[i*4+0] * CHAN_MAXF + 0.5F);
+               rgba[i][GCOMP] = (GLint) (tableF[i*4+1] * CHAN_MAXF + 0.5F);
+               rgba[i][BCOMP] = (GLint) (tableF[i*4+2] * CHAN_MAXF + 0.5F);
+               rgba[i][ACOMP] = (GLint) (tableF[i*4+3] * CHAN_MAXF + 0.5F);
             }
          }
          else {
-            const GLubyte *tableUB = (const GLubyte *) table->Table;
+            const GLchan *tableUB = (const GLchan *) table->Table;
             for (i = 0; i < table->Size; i++) {
                rgba[i][RCOMP] = tableUB[i*4+0];
                rgba[i][GCOMP] = tableUB[i*4+1];
@@ -836,7 +836,7 @@ _mesa_GetColorTable( GLenum target, GLenum format,
          return;
    }
 
-   _mesa_pack_rgba_span(ctx, table->Size, (const GLubyte (*)[]) rgba,
+   _mesa_pack_rgba_span(ctx, table->Size, (const GLchan (*)[]) rgba,
                         format, type, data, &ctx->Pack, GL_FALSE);
 }
 
diff --git a/src/mesa/main/config.h b/src/mesa/main/config.h
index 7e263630134..35a0dded6ad 100644
--- a/src/mesa/main/config.h
+++ b/src/mesa/main/config.h
@@ -1,4 +1,4 @@
-/* $Id: config.h,v 1.19 2000/10/26 19:26:18 brianp Exp $ */
+/* $Id: config.h,v 1.20 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -164,6 +164,16 @@
 #define CHAN_BITS 8
 #define CHAN_MAX ((1 << CHAN_BITS) - 1)
 #define CHAN_MAXF ((GLfloat) CHAN_MAX)
+#if CHAN_BITS == 8
+   typedef GLubyte GLchan;
+#elif CHAN_BITS == 16
+   typedef GLushort GLchan;
+#else
+#error  illegal number of color channel bits
+#endif
+
+
+
 
 
 /*
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 43165b364d9..ab8c4dc0651 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1,4 +1,4 @@
-/* $Id: context.c,v 1.96 2000/10/27 16:44:40 keithw Exp $ */
+/* $Id: context.c,v 1.97 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -884,7 +884,7 @@ init_attrib_groups( GLcontext *ctx )
    ctx->Color.MultiDrawBuffer = GL_FALSE;
 
    /* Current group */
-   ASSIGN_4V( ctx->Current.ByteColor, 255, 255, 255, 255);
+   ASSIGN_4V( ctx->Current.ByteColor, CHAN_MAX, CHAN_MAX, CHAN_MAX, CHAN_MAX );
    ctx->Current.Index = 1;
    for (i=0; i<MAX_TEXTURE_UNITS; i++)
       ASSIGN_4V( ctx->Current.Texcoord[i], 0.0, 0.0, 0.0, 1.0 );
diff --git a/src/mesa/main/convolve.c b/src/mesa/main/convolve.c
index 252ef92e3d5..1c52bcc12af 100644
--- a/src/mesa/main/convolve.c
+++ b/src/mesa/main/convolve.c
@@ -1,4 +1,4 @@
-/* $Id: convolve.c,v 1.5 2000/09/05 20:28:56 brianp Exp $ */
+/* $Id: convolve.c,v 1.6 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -472,7 +472,7 @@ _mesa_CopyConvolutionFilter1D(GLenum target, GLenum internalFormat, GLint x, GLi
    }
 
    /* read pixels from framebuffer */
-   gl_read_rgba_span(ctx, ctx->ReadBuffer, width, x, y, (GLubyte (*)[4]) rgba);
+   gl_read_rgba_span(ctx, ctx->ReadBuffer, width, x, y, (GLchan (*)[4]) rgba);
 
    /* store as convolution filter */
    _mesa_ConvolutionFilter1D(target, internalFormat, width,
@@ -513,7 +513,7 @@ _mesa_CopyConvolutionFilter2D(GLenum target, GLenum internalFormat, GLint x, GLi
    /* read pixels from framebuffer */
    for (i = 0; i < height; i++) {
       gl_read_rgba_span(ctx, ctx->ReadBuffer, width, x, y + i,
-                        (GLubyte (*)[4]) rgba[i]);
+                        (GLchan (*)[4]) rgba[i]);
    }
 
    /*
diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h
index a94e21d4b2a..14f83ebec4d 100644
--- a/src/mesa/main/dd.h
+++ b/src/mesa/main/dd.h
@@ -1,4 +1,4 @@
-/* $Id: dd.h,v 1.33 2000/09/28 18:30:39 brianp Exp $ */
+/* $Id: dd.h,v 1.34 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -158,8 +158,8 @@ struct dd_function_table {
     * the color buffer when in color index mode.
     */
 
-   void (*ClearColor)( GLcontext *ctx, GLubyte red, GLubyte green,
-                                        GLubyte blue, GLubyte alpha );
+   void (*ClearColor)( GLcontext *ctx, GLchan red, GLchan green,
+                                        GLchan blue, GLchan alpha );
    /*
     * Called whenever glClearColor() is called.  Set the color for clearing
     * the color buffer when in RGBA mode.
@@ -185,7 +185,7 @@ struct dd_function_table {
     */
 
    void (*Color)( GLcontext *ctx,
-                  GLubyte red, GLubyte green, GLubyte glue, GLubyte alpha );
+                  GLchan red, GLchan green, GLchan glue, GLchan alpha );
    /*
     * Sets current color for drawing flat-shaded primitives.
     * This color should also be used in the "mono" drawing functions.
@@ -234,10 +234,10 @@ struct dd_function_table {
 
    void (*WriteRGBASpan)( const GLcontext *ctx,
                           GLuint n, GLint x, GLint y,
-                          CONST GLubyte rgba[][4], const GLubyte mask[] );
+                          CONST GLchan rgba[][4], const GLubyte mask[] );
    void (*WriteRGBSpan)( const GLcontext *ctx,
                          GLuint n, GLint x, GLint y,
-                         CONST GLubyte rgb[][3], const GLubyte mask[] );
+                         CONST GLchan rgb[][3], const GLubyte mask[] );
    /* Write a horizontal run of RGBA or RGB pixels.
     * If mask is NULL, draw all pixels.
     * If mask is not null, only draw pixel [i] when mask [i] is true.
@@ -251,7 +251,7 @@ struct dd_function_table {
 
    void (*WriteRGBAPixels)( const GLcontext *ctx,
                             GLuint n, const GLint x[], const GLint y[],
-                            CONST GLubyte rgba[][4], const GLubyte mask[] );
+                            CONST GLchan rgba[][4], const GLubyte mask[] );
    /* Write array of RGBA pixels at random locations.
     */
 
@@ -301,7 +301,7 @@ struct dd_function_table {
     */
 
    void (*ReadRGBASpan)( const GLcontext *ctx, GLuint n, GLint x, GLint y,
-                         GLubyte rgba[][4] );
+                         GLchan rgba[][4] );
    /* Read a horizontal run of RGBA pixels.
     */
 
@@ -313,7 +313,7 @@ struct dd_function_table {
 
    void (*ReadRGBAPixels)( const GLcontext *ctx,
                            GLuint n, const GLint x[], const GLint y[],
-                           GLubyte rgba[][4], const GLubyte mask[] );
+                           GLchan rgba[][4], const GLubyte mask[] );
    /* Read a random array of RGBA pixels.
     */
 
diff --git a/src/mesa/main/feedback.c b/src/mesa/main/feedback.c
index 9f0063476d5..f9de16b8931 100644
--- a/src/mesa/main/feedback.c
+++ b/src/mesa/main/feedback.c
@@ -1,4 +1,4 @@
-/* $Id: feedback.c,v 1.11 2000/09/26 20:53:53 brianp Exp $ */
+/* $Id: feedback.c,v 1.12 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -174,7 +174,7 @@ static void feedback_vertex( GLcontext *ctx, GLuint v, GLuint pv )
    if (ctx->Light.ShadeModel == GL_SMOOTH)
       pv = v;
 
-   UBYTE_RGBA_TO_FLOAT_RGBA( color, VB->ColorPtr->data[pv] );
+   CHAN_RGBA_TO_FLOAT_RGBA( color, VB->ColorPtr->data[pv] );
 
    if (VB->TexCoordPtr[texUnit]->size == 4 &&     
        VB->TexCoordPtr[texUnit]->data[v][3] != 0.0) {
diff --git a/src/mesa/main/fog.c b/src/mesa/main/fog.c
index 1353631adc4..a146a8f47a4 100644
--- a/src/mesa/main/fog.c
+++ b/src/mesa/main/fog.c
@@ -1,4 +1,4 @@
-/* $Id: fog.c,v 1.23 2000/10/28 11:42:12 keithw Exp $ */
+/* $Id: fog.c,v 1.24 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -261,11 +261,11 @@ void
 _mesa_fog_rgba_pixels( const GLcontext *ctx,
                        GLuint n, 
 		       const GLfixed fog[], 
-		       GLubyte rgba[][4] )
+		       GLchan rgba[][4] )
 {
-   GLfixed rFog = ctx->Fog.Color[0] * 255.0;
-   GLfixed gFog = ctx->Fog.Color[1] * 255.0;
-   GLfixed bFog = ctx->Fog.Color[2] * 255.0;
+   GLfixed rFog = ctx->Fog.Color[0] * CHAN_MAXF;
+   GLfixed gFog = ctx->Fog.Color[1] * CHAN_MAXF;
+   GLfixed bFog = ctx->Fog.Color[2] * CHAN_MAXF;
    GLuint i;
 
    for (i=0;i<n;i++) {
@@ -378,7 +378,7 @@ _mesa_win_fog_coords_from_z( const GLcontext *ctx,
  */
 void
 _mesa_depth_fog_rgba_pixels( const GLcontext *ctx,
-			     GLuint n, const GLdepth z[], GLubyte rgba[][4] )
+			     GLuint n, const GLdepth z[], GLchan rgba[][4] )
 {
    GLfixed fog[MAX_WIDTH];
    _mesa_win_fog_coords_from_z( ctx, n, z, fog );
diff --git a/src/mesa/main/fog.h b/src/mesa/main/fog.h
index 38bea5d6f01..d5747426dd2 100644
--- a/src/mesa/main/fog.h
+++ b/src/mesa/main/fog.h
@@ -1,4 +1,4 @@
-/* $Id: fog.h,v 1.6 2000/10/27 18:31:22 brianp Exp $ */
+/* $Id: fog.h,v 1.7 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -53,7 +53,7 @@ _mesa_Fogiv(GLenum pname, const GLint *params );
 extern void
 _mesa_fog_rgba_pixels( const GLcontext *ctx,
                        GLuint n, const GLfixed fog[],
-                       GLubyte rgba[][4] );
+                       GLchan rgba[][4] );
 
 extern void
 _mesa_fog_ci_pixels( const GLcontext *ctx,
diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index 6c21a81e8e7..9876f4951b3 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -1,4 +1,4 @@
-/* $Id: get.c,v 1.35 2000/10/27 16:44:40 keithw Exp $ */
+/* $Id: get.c,v 1.36 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -138,7 +138,7 @@ _mesa_GetBooleanv( GLenum pname, GLboolean *params )
          *params = ENUM_TO_BOOL(ctx->Color.AlphaFunc);
          break;
       case GL_ALPHA_TEST_REF:
-         *params = FLOAT_TO_BOOL((GLfloat) ctx->Color.AlphaRef / 255.0);
+         *params = FLOAT_TO_BOOL((GLfloat) ctx->Color.AlphaRef / CHAN_MAXF);
          break;
       case GL_ATTRIB_STACK_DEPTH:
          *params = INT_TO_BOOL(ctx->AttribStackDepth);
@@ -1329,7 +1329,7 @@ _mesa_GetDoublev( GLenum pname, GLdouble *params )
          *params = ENUM_TO_DOUBLE(ctx->Color.AlphaFunc);
          break;
       case GL_ALPHA_TEST_REF:
-         *params = (GLdouble) ctx->Color.AlphaRef / 255.0;
+         *params = (GLdouble) ctx->Color.AlphaRef / CHAN_MAXF;
          break;
       case GL_ATTRIB_STACK_DEPTH:
          *params = (GLdouble ) (ctx->AttribStackDepth);
@@ -1418,10 +1418,10 @@ _mesa_GetDoublev( GLenum pname, GLdouble *params )
          *params = ENUM_TO_DOUBLE(ctx->Polygon.CullFaceMode);
          break;
       case GL_CURRENT_COLOR:
-         params[0] = UBYTE_COLOR_TO_FLOAT_COLOR(ctx->Current.ByteColor[0]);
-         params[1] = UBYTE_COLOR_TO_FLOAT_COLOR(ctx->Current.ByteColor[1]);
-         params[2] = UBYTE_COLOR_TO_FLOAT_COLOR(ctx->Current.ByteColor[2]);
-         params[3] = UBYTE_COLOR_TO_FLOAT_COLOR(ctx->Current.ByteColor[3]);
+         params[0] = CHAN_COLOR_TO_FLOAT_COLOR(ctx->Current.ByteColor[0]);
+         params[1] = CHAN_COLOR_TO_FLOAT_COLOR(ctx->Current.ByteColor[1]);
+         params[2] = CHAN_COLOR_TO_FLOAT_COLOR(ctx->Current.ByteColor[2]);
+         params[3] = CHAN_COLOR_TO_FLOAT_COLOR(ctx->Current.ByteColor[3]);
          break;
       case GL_CURRENT_INDEX:
          *params = (GLdouble) ctx->Current.Index;
@@ -2521,7 +2521,7 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params )
          *params = ENUM_TO_FLOAT(ctx->Color.AlphaFunc);
          break;
       case GL_ALPHA_TEST_REF:
-         *params = (GLfloat) ctx->Color.AlphaRef / 255.0;
+         *params = (GLfloat) ctx->Color.AlphaRef / CHAN_MAXF;
          break;
       case GL_ATTRIB_STACK_DEPTH:
          *params = (GLfloat) (ctx->AttribStackDepth);
@@ -2610,7 +2610,7 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params )
          *params = ENUM_TO_FLOAT(ctx->Polygon.CullFaceMode);
          break;
       case GL_CURRENT_COLOR:
-	 UBYTE_RGBA_TO_FLOAT_RGBA(params, ctx->Current.ByteColor);
+	 CHAN_RGBA_TO_FLOAT_RGBA(params, ctx->Current.ByteColor);
          break;
       case GL_CURRENT_INDEX:
          *params = (GLfloat) ctx->Current.Index;
@@ -3682,7 +3682,7 @@ _mesa_GetIntegerv( GLenum pname, GLint *params )
          *params = (GLint) ctx->Color.AlphaEnabled;
          break;
       case GL_ALPHA_TEST_REF:
-         *params = FLOAT_TO_INT( (GLfloat) ctx->Color.AlphaRef / 255.0 );
+         *params = FLOAT_TO_INT( (GLfloat) ctx->Color.AlphaRef / CHAN_MAXF );
          break;
       case GL_ALPHA_TEST_FUNC:
          *params = (GLint) ctx->Color.AlphaFunc;
@@ -3775,10 +3775,10 @@ _mesa_GetIntegerv( GLenum pname, GLint *params )
          *params = (GLint) ctx->Polygon.CullFaceMode;
          break;
       case GL_CURRENT_COLOR:
-         params[0] = FLOAT_TO_INT( UBYTE_COLOR_TO_FLOAT_COLOR( ctx->Current.ByteColor[0] ) );
-         params[1] = FLOAT_TO_INT( UBYTE_COLOR_TO_FLOAT_COLOR( ctx->Current.ByteColor[1] ) );
-         params[2] = FLOAT_TO_INT( UBYTE_COLOR_TO_FLOAT_COLOR( ctx->Current.ByteColor[2] ) );
-         params[3] = FLOAT_TO_INT( UBYTE_COLOR_TO_FLOAT_COLOR( ctx->Current.ByteColor[3] ) );
+         params[0] = FLOAT_TO_INT( CHAN_COLOR_TO_FLOAT_COLOR( ctx->Current.ByteColor[0] ) );
+         params[1] = FLOAT_TO_INT( CHAN_COLOR_TO_FLOAT_COLOR( ctx->Current.ByteColor[1] ) );
+         params[2] = FLOAT_TO_INT( CHAN_COLOR_TO_FLOAT_COLOR( ctx->Current.ByteColor[2] ) );
+         params[3] = FLOAT_TO_INT( CHAN_COLOR_TO_FLOAT_COLOR( ctx->Current.ByteColor[3] ) );
          break;
       case GL_CURRENT_INDEX:
          *params = (GLint) ctx->Current.Index;
diff --git a/src/mesa/main/light.c b/src/mesa/main/light.c
index 962d298d188..1ed1178e124 100644
--- a/src/mesa/main/light.c
+++ b/src/mesa/main/light.c
@@ -1,8 +1,8 @@
-/* $Id: light.c,v 1.18 2000/10/27 16:44:40 keithw Exp $ */
+/* $Id: light.c,v 1.19 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
- * Version:  3.3
+ * Version:  3.5
  * 
  * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
  * 
@@ -685,7 +685,7 @@ void gl_update_material( GLcontext *ctx,
  * set by glColorMaterial().
  */
 void gl_update_color_material( GLcontext *ctx, 
-			       const GLubyte rgba[4] )
+			       const GLchan rgba[4] )
 {
    struct gl_light *light, *list = &ctx->Light.EnabledList;
    GLuint bitmask = ctx->Light.ColorMaterialBitmask;
diff --git a/src/mesa/main/light.h b/src/mesa/main/light.h
index f5ca08f84ed..78178f982b8 100644
--- a/src/mesa/main/light.h
+++ b/src/mesa/main/light.h
@@ -1,8 +1,8 @@
-/* $Id: light.h,v 1.3 2000/06/26 23:37:46 brianp Exp $ */
+/* $Id: light.h,v 1.4 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
- * Version:  3.3
+ * Version:  3.5
  * 
  * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
  * 
@@ -118,7 +118,7 @@ extern void gl_update_material( GLcontext *ctx,
 				const struct gl_material src[2], 
 				GLuint bitmask );
 
-extern void gl_update_color_material( GLcontext *ctx, const GLubyte rgba[4] );
+extern void gl_update_color_material( GLcontext *ctx, const GLchan rgba[4] );
 
 
 #endif
diff --git a/src/mesa/main/lines.c b/src/mesa/main/lines.c
index 21501fb1382..df1be60a4b2 100644
--- a/src/mesa/main/lines.c
+++ b/src/mesa/main/lines.c
@@ -1,4 +1,4 @@
-/* $Id: lines.c,v 1.17 2000/10/27 16:44:40 keithw Exp $ */
+/* $Id: lines.c,v 1.18 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -149,7 +149,7 @@ static void flat_ci_z_line( GLcontext *ctx,
 static void flat_rgba_line( GLcontext *ctx,
                             GLuint vert0, GLuint vert1, GLuint pvert )
 {
-   const GLubyte *color = ctx->VB->ColorPtr->data[pvert];
+   const GLchan *color = ctx->VB->ColorPtr->data[pvert];
    PB_SET_COLOR( ctx->PB, color[0], color[1], color[2], color[3] );
 
 #define INTERP_XY 1
@@ -166,7 +166,7 @@ static void flat_rgba_line( GLcontext *ctx,
 static void flat_rgba_z_line( GLcontext *ctx,
                               GLuint vert0, GLuint vert1, GLuint pvert )
 {
-   const GLubyte *color = ctx->VB->ColorPtr->data[pvert];
+   const GLchan *color = ctx->VB->ColorPtr->data[pvert];
    PB_SET_COLOR( ctx->PB, color[0], color[1], color[2], color[3] );
 
 #define INTERP_XY 1
@@ -248,7 +248,7 @@ static void smooth_rgba_line( GLcontext *ctx,
    GLint count = ctx->PB->count;
    GLint *pbx = ctx->PB->x;
    GLint *pby = ctx->PB->y;
-   GLubyte (*pbrgba)[4] = ctx->PB->rgba;
+   GLchan (*pbrgba)[4] = ctx->PB->rgba;
    (void) pvert;
 
    ctx->PB->mono = GL_FALSE;
@@ -283,7 +283,8 @@ static void smooth_rgba_z_line( GLcontext *ctx,
    GLint *pby = ctx->PB->y;
    GLdepth *pbz = ctx->PB->z;
    GLfixed *pbfog = ctx->PB->fog;
-   GLubyte (*pbrgba)[4] = ctx->PB->rgba;
+   GLchan (*pbrgba)[4] = ctx->PB->rgba;
+
    (void) pvert;
 
    ctx->PB->mono = GL_FALSE;
@@ -478,7 +479,8 @@ static void general_smooth_rgba_line( GLcontext *ctx,
    GLint *pby = ctx->PB->y;
    GLdepth *pbz = ctx->PB->z;
    GLfixed *pbfog = ctx->PB->fog;
-   GLubyte (*pbrgba)[4] = ctx->PB->rgba;
+   GLchan (*pbrgba)[4] = ctx->PB->rgba;
+
    (void) pvert;
 
    ctx->PB->mono = GL_FALSE;
@@ -574,7 +576,7 @@ static void general_smooth_rgba_line( GLcontext *ctx,
 static void general_flat_rgba_line( GLcontext *ctx,
                                     GLuint vert0, GLuint vert1, GLuint pvert )
 {
-   const GLubyte *color = ctx->VB->ColorPtr->data[pvert];
+   const GLchan *color = ctx->VB->ColorPtr->data[pvert];
    PB_SET_COLOR( ctx->PB, color[0], color[1], color[2], color[3] );
 
    if (ctx->Line.StippleFlag) {
@@ -624,7 +626,7 @@ static void flat_textured_line( GLcontext *ctx,
    GLfloat *pbs = ctx->PB->s[0];
    GLfloat *pbt = ctx->PB->t[0];
    GLfloat *pbu = ctx->PB->u[0];
-   GLubyte *color = ctx->VB->ColorPtr->data[pv];
+   GLchan *color = ctx->VB->ColorPtr->data[pv];
    PB_SET_COLOR( ctx->PB, color[0], color[1], color[2], color[3] );
    count = ctx->PB->count;
 
@@ -688,7 +690,7 @@ static void smooth_textured_line( GLcontext *ctx,
    GLfloat *pbs = ctx->PB->s[0];
    GLfloat *pbt = ctx->PB->t[0];
    GLfloat *pbu = ctx->PB->u[0];
-   GLubyte (*pbrgba)[4] = ctx->PB->rgba;
+   GLchan (*pbrgba)[4] = ctx->PB->rgba;
    (void) pvert;
 
    ctx->PB->mono = GL_FALSE;
@@ -763,8 +765,9 @@ static void smooth_multitextured_line( GLcontext *ctx,
    GLint *pby = ctx->PB->y;
    GLdepth *pbz = ctx->PB->z;
    GLfixed *pbfog = ctx->PB->fog;
-   GLubyte (*pbrgba)[4] = ctx->PB->rgba;
-   GLubyte (*pbspec)[3] = ctx->PB->spec;
+   GLchan (*pbrgba)[4] = ctx->PB->rgba;
+   GLchan (*pbspec)[3] = ctx->PB->spec;
+
    (void) pvert;
 
    ctx->PB->mono = GL_FALSE;
@@ -859,12 +862,12 @@ static void flat_multitextured_line( GLcontext *ctx,
    GLint *pby = ctx->PB->y;
    GLdepth *pbz = ctx->PB->z;
    GLfixed *pbfog = ctx->PB->fog;
-   GLubyte (*pbrgba)[4] = ctx->PB->rgba;
-   GLubyte (*pbspec)[3] = ctx->PB->spec;
-   GLubyte *color = ctx->VB->ColorPtr->data[pvert];
-   GLubyte sRed   = ctx->VB->SecondaryColorPtr->data ? ctx->VB->SecondaryColorPtr->data[pvert][0] : 0;
-   GLubyte sGreen = ctx->VB->SecondaryColorPtr->data ? ctx->VB->SecondaryColorPtr->data[pvert][1] : 0;
-   GLubyte sBlue  = ctx->VB->SecondaryColorPtr->data ? ctx->VB->SecondaryColorPtr->data[pvert][2] : 0;
+   GLchan (*pbrgba)[4] = ctx->PB->rgba;
+   GLchan (*pbspec)[3] = ctx->PB->spec;
+   GLchan *color = ctx->VB->ColorPtr->data[pvert];
+   GLchan sRed   = ctx->VB->SecondaryColorPtr->data ? ctx->VB->SecondaryColorPtr->data[pvert][0] : 0;
+   GLchan sGreen = ctx->VB->SecondaryColorPtr->data ? ctx->VB->SecondaryColorPtr->data[pvert][1] : 0;
+   GLchan sBlue  = ctx->VB->SecondaryColorPtr->data ? ctx->VB->SecondaryColorPtr->data[pvert][2] : 0;
 
    (void) pvert;
 
diff --git a/src/mesa/main/macros.h b/src/mesa/main/macros.h
index 70f7b82e8af..443e2731c67 100644
--- a/src/mesa/main/macros.h
+++ b/src/mesa/main/macros.h
@@ -1,4 +1,4 @@
-/* $Id: macros.h,v 1.9 2000/09/17 21:56:07 brianp Exp $ */
+/* $Id: macros.h,v 1.10 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -368,6 +368,9 @@ do {						\
 } while (0)
 
 
+#define COPY_CHAN4(DST, SRC)  COPY_4UBV(DST, SRC)
+
+
 /* Assign scalers to short vectors: */
 #define ASSIGN_2V( V, V0, V1 )	\
 do { 				\
@@ -500,4 +503,7 @@ do {						\
 #define FLOAT_TO_INT(X)		( (GLint) (2147483647.0 * (X)) )
 
 
+/* XXX chan fix me */
+#define CHAN_TO_FLOAT(C)        ( (GLfloat) ((C) * (1.0 / CHAN_MAXF)) )
+
 #endif
diff --git a/src/mesa/main/pixel.c b/src/mesa/main/pixel.c
index a0218e10420..703d1294447 100644
--- a/src/mesa/main/pixel.c
+++ b/src/mesa/main/pixel.c
@@ -1,4 +1,4 @@
-/* $Id: pixel.c,v 1.13 2000/10/19 20:09:47 brianp Exp $ */
+/* $Id: pixel.c,v 1.14 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -745,14 +745,14 @@ void
 _mesa_lookup_rgba(const struct gl_color_table *table,
                   GLuint n, GLfloat rgba[][4])
 {
-   ASSERT(table->TableType == GL_FLOAT);
+   ASSERT(table->FloatTable);
    if (!table->Table)
       return;
 
    switch (table->Format) {
       case GL_INTENSITY:
          /* replace RGBA with I */
-         if (table->TableType == GL_UNSIGNED_BYTE) {
+         if (!table->FloatTable) {
             const GLfloat scale = (GLfloat) (table->Size - 1);
             const GLubyte *lut = (const GLubyte *) table->Table;
             GLuint i;
@@ -778,7 +778,7 @@ _mesa_lookup_rgba(const struct gl_color_table *table,
          break;
       case GL_LUMINANCE:
          /* replace RGB with L */
-         if (table->TableType == GL_UNSIGNED_BYTE) {
+         if (!table->FloatTable) {
             const GLfloat scale = (GLfloat) (table->Size - 1);
             const GLubyte *lut = (const GLubyte *) table->Table;
             GLuint i;
@@ -801,7 +801,7 @@ _mesa_lookup_rgba(const struct gl_color_table *table,
          break;
       case GL_ALPHA:
          /* replace A with A */
-         if (table->TableType == GL_UNSIGNED_BYTE) {
+         if (!table->FloatTable) {
             const GLfloat scale = (GLfloat) (table->Size - 1);
             const GLubyte *lut = (const GLubyte *) table->Table;
             GLuint i;
@@ -822,7 +822,7 @@ _mesa_lookup_rgba(const struct gl_color_table *table,
          break;
       case GL_LUMINANCE_ALPHA:
          /* replace RGBA with LLLA */
-         if (table->TableType == GL_UNSIGNED_BYTE) {
+         if (!table->FloatTable) {
             const GLfloat scale = (GLfloat) (table->Size - 1);
             const GLubyte *lut = (const GLubyte *) table->Table;
             GLuint i;
@@ -851,7 +851,7 @@ _mesa_lookup_rgba(const struct gl_color_table *table,
          break;
       case GL_RGB:
          /* replace RGB with RGB */
-         if (table->TableType == GL_UNSIGNED_BYTE) {
+         if (!table->FloatTable) {
             const GLfloat scale = (GLfloat) (table->Size - 1);
             const GLubyte *lut = (const GLubyte *) table->Table;
             GLuint i;
@@ -880,7 +880,7 @@ _mesa_lookup_rgba(const struct gl_color_table *table,
          break;
       case GL_RGBA:
          /* replace RGBA with RGBA */
-         if (table->TableType == GL_UNSIGNED_BYTE) {
+         if (!table->FloatTable) {
             const GLfloat scale = (GLfloat) (table->Size - 1);
             const GLubyte *lut = (const GLubyte *) table->Table;
             GLuint i;
diff --git a/src/mesa/main/points.c b/src/mesa/main/points.c
index 8895e1c8ec4..c23980ff7e4 100644
--- a/src/mesa/main/points.c
+++ b/src/mesa/main/points.c
@@ -1,4 +1,4 @@
-/* $Id: points.c,v 1.16 2000/10/27 16:44:41 keithw Exp $ */
+/* $Id: points.c,v 1.17 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -825,8 +825,7 @@ dist_atten_general_rgba_points( GLcontext *ctx, GLuint first, GLuint last )
          GLint y = (GLint)  VB->Win.data[i][1];
          GLint z = (GLint) (VB->Win.data[i][2] + ctx->PointZoffset);
          GLfloat dsize=psize*dist[i];
-         GLubyte alpha;
-
+         GLchan alpha;
 	 GLfixed fog = FloatToFixed( VB->FogCoordPtr->data[i] );
 
          if (dsize >= ctx->Point.Threshold) {
diff --git a/src/mesa/main/rastpos.c b/src/mesa/main/rastpos.c
index 34359e46e76..a262ed3002e 100644
--- a/src/mesa/main/rastpos.c
+++ b/src/mesa/main/rastpos.c
@@ -1,4 +1,4 @@
-/* $Id: rastpos.c,v 1.8 2000/09/30 18:42:29 brianp Exp $ */
+/* $Id: rastpos.c,v 1.9 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -91,8 +91,8 @@ static void raster_pos4f( GLcontext *ctx,
    else {
       /* use current color or index */
       if (ctx->Visual.RGBAflag) {
-	 UBYTE_RGBA_TO_FLOAT_RGBA(ctx->Current.RasterColor, 
-				  ctx->Current.ByteColor);
+	 CHAN_RGBA_TO_FLOAT_RGBA(ctx->Current.RasterColor, 
+                                 ctx->Current.ByteColor);
       }
       else {
 	 ctx->Current.RasterIndex = ctx->Current.Index;
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index ba11eab98fe..6e20fe87760 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -1,4 +1,4 @@
-/* $Id: teximage.c,v 1.52 2000/10/16 23:43:12 brianp Exp $ */
+/* $Id: teximage.c,v 1.53 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -988,7 +988,7 @@ make_null_texture( struct gl_texture_image *texImage )
          GLint srcRow = 7 - i % 8;
          for (j = 0; j < texImage->Width; j++) {
             GLint srcCol = j % 32;
-            GLint texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
+            GLint texel = (message[srcRow][srcCol]=='X') ? CHAN_MAX : 70;
             for (k=0;k<components;k++) {
                *imgPtr++ = (GLubyte) texel;
             }
@@ -2321,9 +2321,9 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
                      case GL_ALPHA:
                         src = texImage->Data + row * width * sizeof(GLubyte);
                         for (i = 0; i < width; i++) {
-                           rgba[i][RCOMP] = 255;
-                           rgba[i][GCOMP] = 255;
-                           rgba[i][BCOMP] = 255;
+                           rgba[i][RCOMP] = CHAN_MAX;
+                           rgba[i][GCOMP] = CHAN_MAX;
+                           rgba[i][BCOMP] = CHAN_MAX;
                            rgba[i][ACOMP] = src[i];
                         }
                         break;
@@ -2333,7 +2333,7 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
                            rgba[i][RCOMP] = src[i];
                            rgba[i][GCOMP] = src[i];
                            rgba[i][BCOMP] = src[i];
-                           rgba[i][ACOMP] = 255;
+                           rgba[i][ACOMP] = CHAN_MAX;
                          }
                         break;
                      case GL_LUMINANCE_ALPHA:
@@ -2351,7 +2351,7 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
                            rgba[i][RCOMP] = src[i];
                            rgba[i][GCOMP] = src[i];
                            rgba[i][BCOMP] = src[i];
-                           rgba[i][ACOMP] = 255;
+                           rgba[i][ACOMP] = CHAN_MAX;
                         }
                         break;
                      case GL_RGB:
@@ -2360,7 +2360,7 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
                            rgba[i][RCOMP] = src[i*3+0];
                            rgba[i][GCOMP] = src[i*3+1];
                            rgba[i][BCOMP] = src[i*3+2];
-                           rgba[i][ACOMP] = 255;
+                           rgba[i][ACOMP] = CHAN_MAX;
                         }
                         break;
                      case GL_COLOR_INDEX:
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c
index e47589e3e7c..d4037267891 100644
--- a/src/mesa/main/texstate.c
+++ b/src/mesa/main/texstate.c
@@ -1,4 +1,4 @@
-/* $Id: texstate.c,v 1.16 2000/08/01 17:33:53 brianp Exp $ */
+/* $Id: texstate.c,v 1.17 2000/10/28 18:34:48 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -719,10 +719,10 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
          }
          break;
       case GL_TEXTURE_BORDER_COLOR:
-         texObj->BorderColor[0] = (GLubyte) CLAMP((GLint)(params[0]*255.0), 0, 255);
-         texObj->BorderColor[1] = (GLubyte) CLAMP((GLint)(params[1]*255.0), 0, 255);
-         texObj->BorderColor[2] = (GLubyte) CLAMP((GLint)(params[2]*255.0), 0, 255);
-         texObj->BorderColor[3] = (GLubyte) CLAMP((GLint)(params[3]*255.0), 0, 255);
+         texObj->BorderColor[0] = (GLchan) CLAMP((GLint)(params[0]*CHAN_MAXF), 0, CHAN_MAX);
+         texObj->BorderColor[1] = (GLchan) CLAMP((GLint)(params[1]*CHAN_MAXF), 0, CHAN_MAX);
+         texObj->BorderColor[2] = (GLchan) CLAMP((GLint)(params[2]*CHAN_MAXF), 0, CHAN_MAX);
+         texObj->BorderColor[3] = (GLchan) CLAMP((GLint)(params[3]*CHAN_MAXF), 0, CHAN_MAX);
          break;
       case GL_TEXTURE_MIN_LOD:
          texObj->MinLod = params[0];
@@ -965,10 +965,10 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
          *params = ENUM_TO_FLOAT(obj->WrapR);
          break;
       case GL_TEXTURE_BORDER_COLOR:
-         params[0] = obj->BorderColor[0] / 255.0F;
-         params[1] = obj->BorderColor[1] / 255.0F;
-         params[2] = obj->BorderColor[2] / 255.0F;
-         params[3] = obj->BorderColor[3] / 255.0F;
+         params[0] = obj->BorderColor[0] / CHAN_MAXF;
+         params[1] = obj->BorderColor[1] / CHAN_MAXF;
+         params[2] = obj->BorderColor[2] / CHAN_MAXF;
+         params[3] = obj->BorderColor[3] / CHAN_MAXF;
          break;
       case GL_TEXTURE_RESIDENT:
          {
@@ -1035,10 +1035,10 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
       case GL_TEXTURE_BORDER_COLOR:
          {
             GLfloat color[4];
-            color[0] = obj->BorderColor[0] / 255.0F;
-            color[1] = obj->BorderColor[1] / 255.0F;
-            color[2] = obj->BorderColor[2] / 255.0F;
-            color[3] = obj->BorderColor[3] / 255.0F;
+            color[0] = obj->BorderColor[0] / CHAN_MAXF;
+            color[1] = obj->BorderColor[1] / CHAN_MAXF;
+            color[2] = obj->BorderColor[2] / CHAN_MAXF;
+            color[3] = obj->BorderColor[3] / CHAN_MAXF;
             params[0] = FLOAT_TO_INT( color[0] );
             params[1] = FLOAT_TO_INT( color[1] );
             params[2] = FLOAT_TO_INT( color[2] );