patch to import Jon Smirl's work from Bitkeeper

8 files changed, 2033 insertions, 0 deletions

diff --git a/src/mesa/tnl_dd/imm/NOTES.imm b/src/mesa/tnl_dd/imm/NOTES.imm
new file mode 100644
index 0000000000..9b2bd65e4b
--- /dev/null
+++ b/src/mesa/tnl_dd/imm/NOTES.imm
@@ -0,0 +1,112 @@
+
+NOTE:
+
+These files are incomplete.  They do not yet form a working
+implementation of hte concepts discused below.
+
+
+OVERVIEW
+
+The t_dd_imm_* files form a set of templates to produce driver -
+specific software tnl modules for a small subset of transformation and
+lighting states.
+
+The approach is quite different to the large vertex buffers of the
+src/tnl module, and is based around a cache of four recent vertices
+and a 'current' vertex which is updated directly from the Color,
+Normal, Texcoord, SecondaryColor and Fog entrypoints.
+
+The current vertex is actually a composite of the ctx->Current values
+and a partial hardware vertex maintained where the hardware values
+differ from those in ctx->Current.  For example, clamped color values
+are kept in the hardware vertex, while texcoords remain in
+ctx->Current.
+
+A crude diagram:
+
+       		+--------------+	+-------------------+
+		| ctx->Current |	| Current-HW-vertex |
+		+--------------+	+-------------------+
+		       \       	       	       	  /
+		       	\      			 /
+			 \     			/
+			  \    		       /
+			   ---------   --------
+			       	   |   |      
+			       	   v   v     
+	+--------+   +--------+  +--------+  +--------+ 
+	| vert-0 |   | vert-1 |  | vert-2 |  | vert-3 |		       	 
+	+--------+   +--------+  +--------+  +--------+		       	 
+				     |
+				     |
+				     v
+				     
+				    DMA
+
+
+Here values from ctx->Current and current-HW-vertex are merged to
+build vert-2, which is then dumped to hardware (DMA).  A state machine
+determines which vertex is built in turn, and how the vertices are
+used to present primitives to hardware.  These actions all occur
+during a call to Vertex{234}f{v}.
+
+Each vert-n includes clip coordinates and a clipmask in addition to
+the hardware (window) coordinates.  This information allows clipping
+to take place directly on these vertices, if need be.
+
+t_dd_imm_capi.h
+	
+	Color{34}{fub}{v}() implementations.  These update both
+	ctx->Current (unclamped float colors) and current-HW-vertex
+	with hardware-specific color values (typically unsigned
+	bytes).
+
+	When lighting is enabled, the functions from src/api_noop.c
+	should be used, which just update ctx->Current.  (The
+	current-hw-vertex colors are produced from lighting, which is
+	keyed to Normal3f).
+
+t_dd_imm_vb.c
+
+	Support functions for clipping and fallback.  See
+	t_dd_imm_primtmp.h.
+
+t_dd_imm_napi.c
+t_dd_imm_napi.h
+
+	Versions of Normal3f{v} to perform lighting with one or more
+	infinite lights.  Updates ctx->Current.Normal and the current
+	HW colors.
+
+	When lighting is disabled, use the functions from api_noop.c
+	instead.
+
+
+t_dd_imm_primtmp.h
+
+	State machine to control emission of vertices and primitives
+	to hardware.  Called indirectly from Vertex{234}f{v}.  Capable
+	of supporting hardware strip and fan primitives, and of
+	decomposing to discreet primitives for clipping or fallback,
+	or where the native primitive is unavailable.
+
+t_dd_imm_tapi.h
+
+	Implementations of TexCoord{v} and MultiTexCoord4f{v}ARB to
+	fire a callback when transitioning to projective texture.
+	Most drivers will need to change vertex format at this point,
+	some may need to enable a software rasterization fallback.
+
+t_dd_imm_vapi.h
+
+	Implementations of Vertex{234}f{v}.  These perform
+	transformation and cliptesting on their arguments, then jump
+	into the state machine implemented in primtmp.h.
+
+t_dd_imm_vertex.h
+
+	Support functions for building and clip-interpolating hardware
+	vertices.  Called from primtmp.h.
+
+
+Keith Whitwell, June 2001.
\ No newline at end of file
diff --git a/src/mesa/tnl_dd/imm/t_dd_imm_capi.h b/src/mesa/tnl_dd/imm/t_dd_imm_capi.h
new file mode 100644
index 0000000000..77f3a4ab49
--- /dev/null
+++ b/src/mesa/tnl_dd/imm/t_dd_imm_capi.h
@@ -0,0 +1,419 @@
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.5
+ *
+ * Copyright (C) 1999-2001  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"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Gareth Hughes <gareth@valinux.com>
+ */
+
+/* Template for immediate mode color functions.
+ *
+ * FIXME: Floating-point color versions of these...
+ */
+
+
+static void TAG(Color3f)( GLfloat r, GLfloat g, GLfloat b )
+{
+   GET_CURRENT;
+#ifdef COLOR_IS_FLOAT
+   CURRENT_COLOR( RCOMP ) = CLAMP(r, 0.0f, 1.0f);
+   CURRENT_COLOR( GCOMP ) = CLAMP(g, 0.0f, 1.0f);
+   CURRENT_COLOR( BCOMP ) = CLAMP(b, 0.0f, 1.0f);
+   CURRENT_COLOR( ACOMP ) = 1.0f;
+#else
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( RCOMP ), r );
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( GCOMP ), g );
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( BCOMP ), b );
+   CURRENT_COLOR( ACOMP ) = 255;
+#endif
+}
+
+static void TAG(Color3fv)( const GLfloat *v )
+{
+   GET_CURRENT;
+#ifdef COLOR_IS_FLOAT
+   CURRENT_COLOR( RCOMP ) = CLAMP(v[0], 0.0f, 1.0f);
+   CURRENT_COLOR( GCOMP ) = CLAMP(v[1], 0.0f, 1.0f);
+   CURRENT_COLOR( BCOMP ) = CLAMP(v[2], 0.0f, 1.0f);
+   CURRENT_COLOR( ACOMP ) = 1.0f;
+#else
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( RCOMP ), v[0] );
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( GCOMP ), v[1] );
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( BCOMP ), v[2] );
+   CURRENT_COLOR( ACOMP ) = 255;
+#endif
+}
+
+static void TAG(Color3ub)( GLubyte r, GLubyte g, GLubyte b )
+{
+   GET_CURRENT;
+#ifdef COLOR_IS_FLOAT
+   CURRENT_COLOR( RCOMP ) = UBYTE_TO_FLOAT( r );
+   CURRENT_COLOR( GCOMP ) = UBYTE_TO_FLOAT( g );
+   CURRENT_COLOR( BCOMP ) = UBYTE_TO_FLOAT( b );
+   CURRENT_COLOR( ACOMP ) = 1.0f;
+#else
+   CURRENT_COLOR( RCOMP ) = r;
+   CURRENT_COLOR( GCOMP ) = g;
+   CURRENT_COLOR( BCOMP ) = b;
+   CURRENT_COLOR( ACOMP ) = 255;
+#endif
+}
+
+static void TAG(Color3ubv)( const GLubyte *v )
+{
+   GET_CURRENT;
+#ifdef COLOR_IS_FLOAT
+   CURRENT_COLOR( RCOMP ) = UBYTE_TO_FLOAT( v[0] );
+   CURRENT_COLOR( GCOMP ) = UBYTE_TO_FLOAT( v[1] );
+   CURRENT_COLOR( BCOMP ) = UBYTE_TO_FLOAT( v[2] );
+   CURRENT_COLOR( ACOMP ) = 1.0f;
+#else
+   CURRENT_COLOR( RCOMP ) = v[0];
+   CURRENT_COLOR( GCOMP ) = v[1];
+   CURRENT_COLOR( BCOMP ) = v[2];
+   CURRENT_COLOR( ACOMP ) = 255;
+#endif
+}
+
+static void TAG(Color4f)( GLfloat r, GLfloat g, GLfloat b, GLfloat a )
+{
+   GET_CURRENT;
+#ifdef COLOR_IS_FLOAT
+   CURRENT_COLOR( RCOMP ) = CLAMP(r, 0.0f, 1.0f);
+   CURRENT_COLOR( GCOMP ) = CLAMP(g, 0.0f, 1.0f);
+   CURRENT_COLOR( BCOMP ) = CLAMP(b, 0.0f, 1.0f);
+   CURRENT_COLOR( ACOMP ) = CLAMP(a, 0.0f, 1.0f);
+#else
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( RCOMP ), r );
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( GCOMP ), g );
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( BCOMP ), b );
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( ACOMP ), a );
+#endif
+}
+
+static void TAG(Color4fv)( const GLfloat *v )
+{
+   GET_CURRENT;
+#ifdef COLOR_IS_FLOAT
+   CURRENT_COLOR( RCOMP ) = CLAMP(v[0], 0.0f, 1.0f);
+   CURRENT_COLOR( GCOMP ) = CLAMP(v[1], 0.0f, 1.0f);
+   CURRENT_COLOR( BCOMP ) = CLAMP(v[2], 0.0f, 1.0f);
+   CURRENT_COLOR( ACOMP ) = CLAMP(v[3], 0.0f, 1.0f);
+#else
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( RCOMP ), v[0] );
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( GCOMP ), v[1] );
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( BCOMP ), v[2] );
+   UNCLAMPED_FLOAT_TO_UBYTE( CURRENT_COLOR( ACOMP ), v[3] );
+#endif
+}
+
+static void TAG(Color4ub)( GLubyte r, GLubyte g, GLubyte b, GLubyte a )
+{
+   GET_CURRENT;
+#ifdef COLOR_IS_FLOAT
+   CURRENT_COLOR( RCOMP ) = UBYTE_TO_FLOAT( r );
+   CURRENT_COLOR( GCOMP ) = UBYTE_TO_FLOAT( g );
+   CURRENT_COLOR( BCOMP ) = UBYTE_TO_FLOAT( b );
+   CURRENT_COLOR( ACOMP ) = UBYTE_TO_FLOAT( a );
+#else
+   CURRENT_COLOR( RCOMP ) = r;
+   CURRENT_COLOR( GCOMP ) = g;
+   CURRENT_COLOR( BCOMP ) = b;
+   CURRENT_COLOR( ACOMP ) = a;
+#endif
+}
+
+static void TAG(Color4ubv)( const GLubyte *v )
+{
+   GET_CURRENT;
+#ifdef COLOR_IS_FLOAT
+   CURRENT_COLOR( RCOMP ) = UBYTE_TO_FLOAT( v[0] );
+   CURRENT_COLOR( GCOMP ) = UBYTE_TO_FLOAT( v[1] );
+   CURRENT_COLOR( BCOMP ) = UBYTE_TO_FLOAT( v[2] );
+   CURRENT_COLOR( ACOMP ) = UBYTE_TO_FLOAT( v[3] );
+#else
+   CURRENT_COLOR( RCOMP ) = v[0];
+   CURRENT_COLOR( GCOMP ) = v[1];
+   CURRENT_COLOR( BCOMP ) = v[2];
+   CURRENT_COLOR( ACOMP ) = v[3];
+#endif
+}
+
+
+static void TAG(ColorMaterial3f)( GLfloat r, GLfloat g, GLfloat b )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat *color = ctx->Current.Color;
+
+   color[0] = r;
+   color[1] = g;
+   color[2] = b;
+   color[3] = 1.0;
+
+   _mesa_update_color_material( ctx, color );
+   RECALC_BASE_COLOR( ctx );
+}
+
+static void TAG(ColorMaterial3fv)( const GLfloat *v )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat *color = ctx->Current.Color;
+
+   color[0] = v[0];
+   color[1] = v[1];
+   color[2] = v[2];
+   color[3] = 1.0;
+
+   _mesa_update_color_material( ctx, color );
+   RECALC_BASE_COLOR( ctx );
+}
+
+static void TAG(ColorMaterial3ub)( GLubyte r, GLubyte g, GLubyte b )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat *color = ctx->Current.Color;
+
+   color[0] = UBYTE_TO_FLOAT( r );
+   color[1] = UBYTE_TO_FLOAT( g );
+   color[2] = UBYTE_TO_FLOAT( b );
+   color[3] = 1.0;
+
+   _mesa_update_color_material( ctx, color );
+   RECALC_BASE_COLOR( ctx );
+}
+
+static void TAG(ColorMaterial3ubv)( const GLubyte *v )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat *color = ctx->Current.Color;
+
+   color[0] = UBYTE_TO_FLOAT( v[0] );
+   color[1] = UBYTE_TO_FLOAT( v[1] );
+   color[2] = UBYTE_TO_FLOAT( v[2] );
+   color[3] = 1.0;
+
+   _mesa_update_color_material( ctx, color );
+   RECALC_BASE_COLOR( ctx );
+}
+
+static void TAG(ColorMaterial4f)( GLfloat r, GLfloat g, GLfloat b, GLfloat a )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat *color = ctx->Current.Color;
+
+   color[0] = r;
+   color[1] = g;
+   color[2] = b;
+   color[3] = a;
+
+   _mesa_update_color_material( ctx, color );
+   RECALC_BASE_COLOR( ctx );
+}
+
+static void TAG(ColorMaterial4fv)( const GLfloat *v )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat *color = ctx->Current.Color;
+
+   color[0] = v[0];
+   color[1] = v[1];
+   color[2] = v[2];
+   color[3] = v[3];
+
+   _mesa_update_color_material( ctx, color );
+   RECALC_BASE_COLOR( ctx );
+}
+
+static void TAG(ColorMaterial4ub)( GLubyte r, GLubyte g, GLubyte b, GLubyte a )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat *color = ctx->Current.Color;
+
+   color[0] = UBYTE_TO_FLOAT( r );
+   color[1] = UBYTE_TO_FLOAT( g );
+   color[2] = UBYTE_TO_FLOAT( b );
+   color[3] = UBYTE_TO_FLOAT( a );
+
+   _mesa_update_color_material( ctx, color );
+   RECALC_BASE_COLOR( ctx );
+}
+
+static void TAG(ColorMaterial4ubv)( const GLubyte *v )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat *color = ctx->Current.Color;
+
+   color[0] = UBYTE_TO_FLOAT( v[0] );
+   color[1] = UBYTE_TO_FLOAT( v[1] );
+   color[2] = UBYTE_TO_FLOAT( v[2] );
+   color[3] = UBYTE_TO_FLOAT( v[3] );
+
+   _mesa_update_color_material( ctx, color );
+   RECALC_BASE_COLOR( ctx );
+}
+
+
+
+
+
+/* =============================================================
+ * Color chooser functions:
+ */
+
+static void TAG(choose_Color3f)( GLfloat r, GLfloat g, GLfloat b )
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if ( ctx->Light.Enabled ) {
+      if ( ctx->Light.ColorMaterialEnabled ) {
+	 ctx->Exec->Color3f = TAG(ColorMaterial3f);
+      } else {
+	 ctx->Exec->Color3f = _mesa_noop_Color3f;
+      }
+   } else {
+      ctx->Exec->Color3f = TAG(Color3f);
+   }
+   glColor3f( r, g, b );
+}
+
+static void TAG(choose_Color3fv)( const GLfloat *v )
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if ( ctx->Light.Enabled ) {
+      if ( ctx->Light.ColorMaterialEnabled ) {
+	 ctx->Exec->Color3fv = TAG(ColorMaterial3fv);
+      } else {
+	 ctx->Exec->Color3fv = _mesa_noop_Color3fv;
+      }
+   } else {
+      ctx->Exec->Color3fv = TAG(Color3fv);
+   }
+   glColor3fv( v );
+}
+
+static void TAG(choose_Color3ub)( GLubyte r, GLubyte g, GLubyte b )
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if ( ctx->Light.Enabled ) {
+      if ( ctx->Light.ColorMaterialEnabled ) {
+	 ctx->Exec->Color3ub = TAG(ColorMaterial3ub);
+      } else {
+	 ctx->Exec->Color3ub = _mesa_noop_Color3ub;
+      }
+   } else {
+      ctx->Exec->Color3ub = TAG(Color3ub);
+   }
+   glColor3ub( r, g, b );
+}
+
+static void TAG(choose_Color3ubv)( const GLubyte *v )
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if ( ctx->Light.Enabled ) {
+      if ( ctx->Light.ColorMaterialEnabled ) {
+	 ctx->Exec->Color3ubv = TAG(ColorMaterial3ubv);
+      } else {
+	 ctx->Exec->Color3ubv = _mesa_noop_Color3ubv;
+      }
+   } else {
+      ctx->Exec->Color3ubv = TAG(Color3ubv);
+   }
+   glColor3ubv( v );
+}
+
+static void TAG(choose_Color4f)( GLfloat r, GLfloat g, GLfloat b, GLfloat a )
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if ( ctx->Light.Enabled ) {
+      if ( ctx->Light.ColorMaterialEnabled ) {
+	 ctx->Exec->Color4f = TAG(ColorMaterial4f);
+      } else {
+	 ctx->Exec->Color4f = _mesa_noop_Color4f;
+      }
+   } else {
+      ctx->Exec->Color4f = TAG(Color4f);
+   }
+   glColor4f( r, g, b, a );
+}
+
+static void TAG(choose_Color4fv)( const GLfloat *v )
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if ( ctx->Light.Enabled ) {
+      if ( ctx->Light.ColorMaterialEnabled ) {
+	 ctx->Exec->Color4fv = TAG(ColorMaterial4fv);
+      } else {
+	 ctx->Exec->Color4fv = _mesa_noop_Color4fv;
+      }
+   } else {
+      ctx->Exec->Color4fv = TAG(Color4fv);
+   }
+   glColor4fv( v );
+}
+
+static void TAG(choose_Color4ub)( GLubyte r, GLubyte g, GLubyte b, GLubyte a )
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if ( ctx->Light.Enabled ) {
+      if ( ctx->Light.ColorMaterialEnabled ) {
+	 ctx->Exec->Color4ub = TAG(ColorMaterial4ub);
+      } else {
+	 ctx->Exec->Color4ub = _mesa_noop_Color4ub;
+      }
+   } else {
+      ctx->Exec->Color4ub = TAG(Color4ub);
+   }
+   glColor4ub( r, g, b, a );
+}
+
+static void TAG(choose_Color4ubv)( const GLubyte *v )
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if ( ctx->Light.Enabled ) {
+      if ( ctx->Light.ColorMaterialEnabled ) {
+	 ctx->Exec->Color4ubv = TAG(ColorMaterial4ubv);
+      } else {
+	 ctx->Exec->Color4ubv = _mesa_noop_Color4ubv;
+      }
+   } else {
+      ctx->Exec->Color4ubv = TAG(Color4ubv);
+   }
+   glColor4ubv( v );
+}
+
+
+
+#undef GET_CURRENT
+#undef CURRENT_COLOR
+#undef CURRENT_SPECULAR
+#undef COLOR_IS_FLOAT
+#undef RECALC_BASE_COLOR
+#undef TAG
diff --git a/src/mesa/tnl_dd/imm/t_dd_imm_napi.h b/src/mesa/tnl_dd/imm/t_dd_imm_napi.h
new file mode 100644
index 0000000000..9844f615ff
--- /dev/null
+++ b/src/mesa/tnl_dd/imm/t_dd_imm_napi.h
@@ -0,0 +1,226 @@
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.5
+ *
+ * Copyright (C) 1999-2001  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"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Gareth Hughes <gareth@valinux.com>
+ *    Keith Whitwell <keith_whitwell@yahoo.com>
+ */
+
+/* Template for immediate mode normal functions.  Optimize for infinite
+ * lights when doing software lighting.
+ */
+
+static void TAG(Normal3f_single)( GLfloat x, GLfloat y, GLfloat z )
+{
+   GET_CURRENT_VERTEX;
+   const struct gl_light *light = ctx->Light.EnabledList.prev;
+   GLfloat n_dot_h, n_dot_VP, spec, sum[3];
+   GLfloat *normal = ctx->Current.Normal;
+   GLfloat scale = 1.0;
+
+   ASSIGN_3V( normal, x, y, z );
+   COPY_3V( sum, BASE_COLOR );
+
+   if ( IND & NORM_RESCALE ) {
+      scale = ctx->_ModelViewInvScale;
+   } else if ( IND & NORM_NORMALIZE ) {
+      scale = LEN_3FV( normal );
+      if ( scale != 0.0 ) scale = 1.0 / scale;
+   }
+
+   n_dot_VP = DOT3( normal, light->_VP_inf_norm ) * scale;
+   if ( n_dot_VP > 0.0F ) {
+      ACC_SCALE_SCALAR_3V( sum, n_dot_VP, light->_MatDiffuse[0] );
+      n_dot_h = DOT3( normal, light->_h_inf_norm ) * scale;
+      if ( n_dot_h > 0.0F ) {
+	 GET_SHINE_TAB_ENTRY( ctx->_ShineTable[0], n_dot_h, spec );
+	 ACC_SCALE_SCALAR_3V( sum, spec, light->_MatSpecular[0] );
+      }
+   }
+
+#ifdef LIT_COLOR_IS_FLOAT
+   LIT_COLOR ( RCOMP ) = CLAMP(sum[0], 0.0f, 0.1f);
+   LIT_COLOR ( GCOMP ) = CLAMP(sum[1], 0.0f, 0.1f);
+   LIT_COLOR ( BCOMP ) = CLAMP(sum[2], 0.0f, 0.1f);
+#else
+   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( RCOMP ), sum[0] );
+   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( GCOMP ), sum[1] );
+   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( BCOMP ), sum[2] );
+#endif
+   LIT_COLOR( ACOMP ) = LIT_ALPHA;
+}
+
+static void TAG(Normal3fv_single)( const GLfloat *normal )
+{
+   GET_CURRENT_VERTEX;
+   const struct gl_light *light = ctx->Light.EnabledList.prev;
+   GLfloat n_dot_h, n_dot_VP, spec, sum[3];
+   GLfloat scale = 1.0;
+
+   COPY_3V( ctx->Current.Normal, normal );
+   COPY_3V( sum, BASE_COLOR );
+
+   if ( IND & NORM_RESCALE ) {
+      scale = ctx->_ModelViewInvScale;
+   } else if ( IND & NORM_NORMALIZE ) {
+      scale = LEN_3FV( normal );
+      if ( scale != 0.0 ) scale = 1.0 / scale;
+   }
+
+   n_dot_VP = DOT3( normal, light->_VP_inf_norm ) * scale;
+   if ( n_dot_VP > 0.0F ) {
+      ACC_SCALE_SCALAR_3V( sum, n_dot_VP, light->_MatDiffuse[0] );
+      n_dot_h = DOT3( normal, light->_h_inf_norm ) * scale;
+      if ( n_dot_h > 0.0F ) {
+	 GET_SHINE_TAB_ENTRY( ctx->_ShineTable[0], n_dot_h, spec );
+	 ACC_SCALE_SCALAR_3V( sum, spec, light->_MatSpecular[0] );
+      }
+   }
+
+#ifdef LIT_COLOR_IS_FLOAT
+   LIT_COLOR ( RCOMP ) = CLAMP(sum[0], 0.0f, 0.1f);
+   LIT_COLOR ( GCOMP ) = CLAMP(sum[1], 0.0f, 0.1f);
+   LIT_COLOR ( BCOMP ) = CLAMP(sum[2], 0.0f, 0.1f);
+#else
+   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( RCOMP ), sum[0] );
+   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( GCOMP ), sum[1] );
+   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( BCOMP ), sum[2] );
+#endif
+   LIT_COLOR( ACOMP ) = LIT_ALPHA;
+}
+
+
+static void TAG(Normal3f_multi)( GLfloat x, GLfloat y, GLfloat z )
+{
+   GET_CURRENT_VERTEX;
+   struct gl_light *light;
+   GLfloat n_dot_h, n_dot_VP, spec, sum[3], tmp[3];
+   GLfloat *normal;
+
+   ASSIGN_3V( ctx->Current.Normal, x, y, z );
+   COPY_3V( sum, BASE_COLOR );
+
+   if ( IND & NORM_RESCALE ) {
+      normal = tmp;
+      ASSIGN_3V( normal, x, y, z );
+      SELF_SCALE_SCALAR_3V( normal, ctx->_ModelViewInvScale );
+   } else if ( IND & NORM_NORMALIZE ) {
+      normal = tmp;
+      ASSIGN_3V( normal, x, y, z );
+      NORMALIZE_3FV( normal );
+   } else {
+      normal = ctx->Current.Normal;
+   }
+
+   foreach ( light, &ctx->Light.EnabledList ) {
+      n_dot_VP = DOT3( normal, light->_VP_inf_norm );
+      if ( n_dot_VP > 0.0F ) {
+	 ACC_SCALE_SCALAR_3V( sum, n_dot_VP, light->_MatDiffuse[0] );
+	 n_dot_h = DOT3( normal, light->_h_inf_norm );
+	 if ( n_dot_h > 0.0F ) {
+	    GET_SHINE_TAB_ENTRY( ctx->_ShineTable[0], n_dot_h, spec );
+	    ACC_SCALE_SCALAR_3V( sum, spec, light->_MatSpecular[0] );
+	 }
+      }
+   }
+
+#ifdef LIT_COLOR_IS_FLOAT
+   LIT_COLOR ( RCOMP ) = CLAMP(sum[0], 0.0f, 0.1f);
+   LIT_COLOR ( GCOMP ) = CLAMP(sum[1], 0.0f, 0.1f);
+   LIT_COLOR ( BCOMP ) = CLAMP(sum[2], 0.0f, 0.1f);
+#else
+   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( RCOMP ), sum[0] );
+   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( GCOMP ), sum[1] );
+   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( BCOMP ), sum[2] );
+#endif
+   LIT_COLOR( ACOMP ) = LIT_ALPHA;
+}
+
+static void TAG(Normal3fv_multi)( const GLfloat *n )
+{
+   GET_CURRENT_VERTEX;
+   struct gl_light *light;
+   GLfloat n_dot_h, n_dot_VP, spec, sum[3], tmp[3];
+   GLfloat *normal;
+
+   COPY_3V( ctx->Current.Normal, n );
+   COPY_3V( sum, BASE_COLOR );
+
+   if ( IND & NORM_RESCALE ) {
+      normal = tmp;
+      COPY_3V( normal, n );
+      SELF_SCALE_SCALAR_3V( normal, ctx->_ModelViewInvScale );
+   } else if ( IND & NORM_NORMALIZE ) {
+      normal = tmp;
+      COPY_3V( normal, n );
+      NORMALIZE_3FV( normal );
+   } else {
+      normal = ctx->Current.Normal;
+   }
+
+   foreach ( light, &ctx->Light.EnabledList ) {
+      n_dot_VP = DOT3( normal, light->_VP_inf_norm );
+      if ( n_dot_VP > 0.0F ) {
+	 ACC_SCALE_SCALAR_3V( sum, n_dot_VP, light->_MatDiffuse[0] );
+	 n_dot_h = DOT3( normal, light->_h_inf_norm );
+	 if ( n_dot_h > 0.0F ) {
+	    GET_SHINE_TAB_ENTRY( ctx->_ShineTable[0], n_dot_h, spec );
+	    ACC_SCALE_SCALAR_3V( sum, spec, light->_MatSpecular[0] );
+	 }
+      }
+   }
+
+#ifdef LIT_COLOR_IS_FLOAT
+   LIT_COLOR ( RCOMP ) = CLAMP(sum[0], 0.0f, 0.1f);
+   LIT_COLOR ( GCOMP ) = CLAMP(sum[1], 0.0f, 0.1f);
+   LIT_COLOR ( BCOMP ) = CLAMP(sum[2], 0.0f, 0.1f);
+#else
+   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( RCOMP ), sum[0] );
+   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( GCOMP ), sum[1] );
+   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( BCOMP ), sum[2] );
+#endif
+   LIT_COLOR( ACOMP ) = LIT_ALPHA;
+}
+
+
+
+static void TAG(init_norm)( void )
+{
+   norm_tab[IND].normal3f_single = TAG(Normal3f_single);
+   norm_tab[IND].normal3fv_single = TAG(Normal3fv_single);
+   norm_tab[IND].normal3f_multi = TAG(Normal3f_multi);
+   norm_tab[IND].normal3fv_multi = TAG(Normal3fv_multi);
+}
+
+
+
+#ifndef PRESERVE_NORMAL_DEFS
+#undef GET_CURRENT
+#undef GET_CURRENT_VERTEX
+#undef LIT_COLOR
+#undef LIT_COLOR_IS_FLOAT
+#endif
+#undef PRESERVE_NORMAL_DEFS
+#undef IND
+#undef TAG
diff --git a/src/mesa/tnl_dd/imm/t_dd_imm_primtmp.h b/src/mesa/tnl_dd/imm/t_dd_imm_primtmp.h
new file mode 100644
index 0000000000..97dca3fd42
--- /dev/null
+++ b/src/mesa/tnl_dd/imm/t_dd_imm_primtmp.h
@@ -0,0 +1,570 @@
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.5
+ *
+ * Copyright (C) 1999-2001  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"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keithw@valinux.com>
+ *    Gareth Hughes <gareth@valinux.com>
+ */
+
+/* Template for immediate mode vertices. 
+ *
+ * Probably instantiate once for each vertex format used:
+ *   - TINY_VERTICES
+ *   - TEX0_VERTICES
+ *   - TEX1_VERTICES
+ *   - PTEX_VERTICES
+ *
+ * Have to handle TEX->PTEX transition somehow.
+ */
+
+#define DBG 0
+
+
+
+/* =============================================================
+ * GL_POINTS
+ */
+
+static void TAG(flush_point_0)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   if ( !v0->mask ) {
+      LOCAL_VARS;
+      DRAW_POINT( v0 );
+   }
+}
+
+
+/* =============================================================
+ * GL_LINES
+ */
+
+static void TAG(flush_line_1)( GLcontext *ctx, TNL_VERTEX *v0 );
+
+static void TAG(flush_line_0)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   FLUSH_VERTEX = TAG(flush_line_1);
+   ACTIVE_VERTEX = IMM_VERTICES( 1 );
+}
+
+static void TAG(flush_line_1)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   TNL_VERTEX *v1 = v0 - 1;
+   ACTIVE_VERTEX = IMM_VERTICES( 0 );
+   FLUSH_VERTEX = TAG(flush_line_0);
+   if (FALLBACK_OR_CLIPPING) 
+      CLIP_OR_DRAW_LINE( ctx, v1, v0 ); 
+   else
+      DRAW_LINE( ctx, v1, v0 ); 
+}
+
+
+/* =============================================================
+ * GL_LINE_LOOP
+ */
+
+static void TAG(flush_line_loop_2)( GLcontext *ctx, TNL_VERTEX *v0 );
+static void TAG(flush_line_loop_1)( GLcontext *ctx, TNL_VERTEX *v0 );
+
+static void TAG(flush_line_loop_0)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+
+   ACTIVE_VERTEX = v0 + 1;
+   FLUSH_VERTEX = TAG(flush_line_loop_1);
+}
+
+#define DRAW_LINELOOP_LINE( a, b )			\
+   if (!HAVE_LINE_STRIP || FALLBACK_OR_CLIPPING) {	\
+      CLIP_OR_DRAW_LINE( ctx, a, b );			\
+   } else if (EXTEND_PRIM( 1 )) {			\
+      EMIT_VERTEX( b );					\
+   } else {						\
+      BEGIN_PRIM( GL_LINE_STRIP, 2 ); 			\
+      EMIT_VERTEX( a );					\
+      EMIT_VERTEX( b );      				\
+   }
+
+static void TAG(flush_line_loop_1)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   TNL_VERTEX *v1 = v0 - 1;
+   ACTIVE_VERTEX = v1;
+   FLUSH_VERTEX = TAG(flush_line_loop_2);
+   DRAW_LINELOOP_LINE( v1, v0 );
+}
+
+static void TAG(flush_line_loop_2)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   TNL_VERTEX *v1 = v0 + 1;
+   ACTIVE_VERTEX = v1;
+   FLUSH_VERTEX = TAG(flush_line_loop_1);
+   DRAW_LINELOOP_LINE( v1, v0 );
+}
+
+static void TAG(end_line_loop)( GLcontext *ctx )
+{
+   LOCAL_VARS;
+
+   if ( FLUSH_VERTEX != TAG(flush_line_loop_0) ) {
+      TNL_VERTEX *v1 = ACTIVE_VERTEX;
+      TNL_VERTEX *v0 = IMM_VERTICES( 0 );
+      DRAW_LINELOOP_LINE( v1, v0 );
+   }
+}
+
+
+
+/* =============================================================
+ * GL_LINE_STRIP
+ */
+
+static void TAG(flush_line_strip_2)( GLcontext *ctx, TNL_VERTEX *v0 );
+static void TAG(flush_line_strip_1)( GLcontext *ctx, TNL_VERTEX *v0 );
+
+static void TAG(flush_line_strip_0)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+
+   ACTIVE_VERTEX = v0 + 1;
+   FLUSH_VERTEX = TAG(flush_line_strip_0b);
+}
+
+
+static void TAG(flush_line_strip_1)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   TNL_VERTEX *v1 = v0 - 1;
+
+   ACTIVE_VERTEX = v1;
+   FLUSH_VERTEX = TAG(flush_line_strip_2);
+
+   if (!HAVE_LINE_STRIP || FALLBACK_OR_CLIPPING)
+      CLIP_OR_DRAW_LINE( ctx, v1, v0 );
+   else if (EXTEND_PRIM( 1 )) {
+      EMIT_VERTEX( v0 );
+   } else {
+      BEGIN_PRIM( GL_LINE_STRIP, 2 ); 
+      EMIT_VERTEX( v1 );
+      EMIT_VERTEX( v0 );      
+   }      
+}
+
+static void TAG(flush_line_strip_2)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   TNL_VERTEX *v1 = v0 + 1;
+
+   ACTIVE_VERTEX = v1;
+   FLUSH_VERTEX = TAG(flush_line_strip_1);
+
+   if (!HAVE_LINE_STRIP || FALLBACK_OR_CLIPPING)
+      CLIP_OR_DRAW_LINE( ctx, v1, v0 );
+   else if (EXTEND_PRIM( 1 )) {
+      EMIT_VERTEX( v0 );
+   } else {
+      BEGIN_PRIM( GL_LINE_STRIP, 2 ); 
+      EMIT_VERTEX( v1 );
+      EMIT_VERTEX( v0 );      
+   }      
+}
+
+
+
+/* =============================================================
+ * GL_TRIANGLES
+ */
+
+static void TAG(flush_triangle_2)( GLcontext *ctx, TNL_VERTEX *v0 );
+static void TAG(flush_triangle_1)( GLcontext *ctx, TNL_VERTEX *v0 );
+
+static void TAG(flush_triangle_0)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+
+   if ( DBG ) fprintf( stderr, __FUNCTION__ "\n" );
+
+   ACTIVE_VERTEX = v0 + 1;
+   FLUSH_VERTEX = TAG(flush_triangle_1);
+   BEGIN_PRIM( GL_TRIANGLES, 0 );
+}
+
+static void TAG(flush_triangle_1)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+
+   if ( DBG ) fprintf( stderr, __FUNCTION__ "\n" );
+
+   ACTIVE_VERTEX = v0 + 1;
+   FLUSH_VERTEX = TAG(flush_triangle_2);
+}
+
+static void TAG(flush_triangle_2)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   TNL_VERTEX *v2 = v0 - 2;
+   TNL_VERTEX *v1 = v0 - 1;
+
+   if ( DBG ) fprintf( stderr, __FUNCTION__ "\n" );
+
+   ACTIVE_VERTEX = v2;
+   FLUSH_VERTEX = TAG(flush_triangle_0);
+
+   /* nothing gained by trying to emit as hw primitives -- that
+    * happens normally in this case.  
+    */
+   if (FALLBACK_OR_CLIPPING)
+      CLIP_OR_DRAW_TRI( ctx, v2, v1, v0 );
+   else
+      DRAW_TRI( ctx, v2, v1, v0 );
+}
+
+
+
+
+/* =============================================================
+ * GL_TRIANGLE_STRIP
+ */
+
+static void TAG(flush_tri_strip_3)( GLcontext *ctx, TNL_VERTEX *v0 );
+static void TAG(flush_tri_strip_2)( GLcontext *ctx, TNL_VERTEX *v0 );
+static void TAG(flush_tri_strip_1)( GLcontext *ctx, TNL_VERTEX *v0 );
+
+static void TAG(flush_tri_strip_0)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   ACTIVE_VERTEX = IMM_VERTICES( 1 );
+   FLUSH_VERTEX = TAG(flush_tri_strip_1);
+}
+
+static void TAG(flush_tri_strip_1)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   ACTIVE_VERTEX = IMM_VERTICES( 2 );
+   FLUSH_VERTEX = TAG(flush_tri_strip_2);
+}
+
+#define DO_TRISTRIP_TRI( vert0, vert1 )				\
+   if (!HAVE_TRI_STRIP || FALLBACK_OR_CLIPPING) {	\
+      TNL_VERTEX *v2 = IMM_VERTICES( vert0 );			\
+      TNL_VERTEX *v1 = IMM_VERTICES( vert1 );			\
+      TAG(draw_tri)( ctx, v2, v1, v0 );				\
+   } else if (EXTEND_PRIM( 1 )) {				\
+      EMIT_VERTEX( v0 );					\
+   } else {							\
+      TNL_VERTEX *v2 = IMM_VERTICES( vert0 );			\
+      TNL_VERTEX *v1 = IMM_VERTICES( vert1 );			\
+      BEGIN_PRIM( GL_TRIANGLE_STRIP, 3 ); 			\
+      EMIT_VERTEX( v2 );					\
+      EMIT_VERTEX( v1 );      					\
+      EMIT_VERTEX( v0 );      					\
+   }      
+
+static void TAG(flush_tri_strip_2)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   FLUSH_VERTEX = TAG(flush_tri_strip_3);
+   ACTIVE_VERTEX = IMM_VERTICES( 3 );
+   DO_TRISTRIP_TRI( 0, 1 );
+}
+
+static void TAG(flush_tri_strip_3)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   FLUSH_VERTEX = TAG(flush_tri_strip_4);
+   ACTIVE_VERTEX = IMM_VERTICES( 0 );
+   DO_TRISTRIP_TRI( 1, 2 );
+}
+
+static void TAG(flush_tri_strip_4)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   FLUSH_VERTEX = TAG(flush_tri_strip_5);
+   ACTIVE_VERTEX = IMM_VERTICES( 1 );
+   DO_TRISTRIP_TRI( 2, 3 );
+}
+
+static void TAG(flush_tri_strip_5)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   FLUSH_VERTEX = TAG(flush_tri_strip_2);
+   ACTIVE_VERTEX = IMM_VERTICES( 2 );
+   DO_TRISTRIP_TRI( 0, 3 );
+}
+
+
+
+/* =============================================================
+ * GL_TRIANGLE_FAN
+ */
+
+static void TAG(flush_tri_fan_2)( GLcontext *ctx, TNL_VERTEX *v0 );
+static void TAG(flush_tri_fan_1)( GLcontext *ctx, TNL_VERTEX *v0 );
+
+static void TAG(flush_tri_fan_0)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+
+   ACTIVE_VERTEX = v0 + 1;
+   FLUSH_VERTEX = TAG(flush_tri_fan_1);
+}
+
+static void TAG(flush_tri_fan_1)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+
+   ACTIVE_VERTEX = v0 + 1;
+   FLUSH_VERTEX = TAG(flush_tri_fan_2);
+}
+
+#define DO_TRIFAN_TRI( vert0, vert1 )				\
+   if (!HAVE_TRI_FAN || FALLBACK_OR_CLIPPING) {	\
+      TNL_VERTEX *v2 = IMM_VERTICES( vert0 );			\
+      TNL_VERTEX *v1 = IMM_VERTICES( vert1 );			\
+      TAG(draw_tri)( ctx, v2, v1, v0 );				\
+   } else if (EXTEND_PRIM( 1 )) {				\
+      EMIT_VERTEX( v0 );					\
+   } else {							\
+      TNL_VERTEX *v2 = IMM_VERTICES( vert0 );			\
+      TNL_VERTEX *v1 = IMM_VERTICES( vert1 );			\
+      BEGIN_PRIM( GL_TRIANGLE_FAN, 3 ); 			\
+      EMIT_VERTEX( v2 );					\
+      EMIT_VERTEX( v1 );      					\
+      EMIT_VERTEX( v0 );      					\
+   }      
+
+static void TAG(flush_tri_fan_2)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   ACTIVE_VERTEX = IMM_VERTICES( 1 );
+   FLUSH_VERTEX = TAG(flush_tri_fan_3 );
+   DO_TRIFAN_TRI( 0, 1 );
+}
+
+static void TAG(flush_tri_fan_3)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   ACTIVE_VERTEX = IMM_VERTICES( 2 );
+   FLUSH_VERTEX = TAG(flush_tri_fan_2 );
+   DO_TRIFAN_TRI( 0, 2 );
+}
+
+
+
+/* =============================================================
+ * GL_QUADS
+ */
+
+static void TAG(flush_quad_3)( GLcontext *ctx, TNL_VERTEX *v0 );
+static void TAG(flush_quad_2)( GLcontext *ctx, TNL_VERTEX *v0 );
+static void TAG(flush_quad_1)( GLcontext *ctx, TNL_VERTEX *v0 );
+
+static void TAG(flush_quad_0)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   IMM_VERTEX( v0 ) = v0 + 1;
+   FLUSH_VERTEX = TAG(flush_quad_1);
+}
+
+static void TAG(flush_quad_1)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   IMM_VERTEX( v0 ) = v0 + 1;
+   FLUSH_VERTEX = TAG(flush_quad_2);
+}
+
+static void TAG(flush_quad_2)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   IMM_VERTEX( v0 ) = v0 + 1;
+   FLUSH_VERTEX = TAG(flush_quad_3);
+}
+
+static void TAG(flush_quad_3)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   TNL_VERTEX *v3 = v0 - 3;
+   TNL_VERTEX *v2 = v0 - 2;
+   TNL_VERTEX *v1 = v0 - 1;
+
+   IMM_VERTEX( v0 ) = v3;
+   FLUSH_VERTEX = TAG(flush_quad_0);
+
+   if (!HAVE_HW_QUADS || FALLBACK_OR_CLIPPING) {
+      CLIP_OR_DRAW_TRI( ctx, v3, v2, v0 );
+      CLIP_OR_DRAW_TRI( ctx, v2, v1, v0 );
+   } else {
+      EXTEND_PRIM_NF( GL_QUADS, 4 );
+      EMIT_VERTEX( v3 );
+      EMIT_VERTEX( v2 );
+      EMIT_VERTEX( v1 );      
+      EMIT_VERTEX( v0 );      
+   }
+}
+
+
+
+/* =============================================================
+ * GL_QUAD_STRIP
+ */
+
+static void TAG(flush_quad_strip_3)( GLcontext *ctx, TNL_VERTEX *v0 );
+static void TAG(flush_quad_strip_2)( GLcontext *ctx, TNL_VERTEX *v0 );
+static void TAG(flush_quad_strip_1)( GLcontext *ctx, TNL_VERTEX *v0 );
+
+static void TAG(flush_quad_strip_0)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+
+   IMM_VERTEX( v3 ) = v0;
+   IMM_VERTEX( v0 ) = v0 + 1;
+   FLUSH_VERTEX = TAG(flush_quad_strip_1);
+}
+
+static void TAG(flush_quad_strip_1)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+
+   IMM_VERTEX( v2 ) = v0;
+   IMM_VERTEX( v0 ) = v0 + 1;
+   FLUSH_VERTEX = TAG(flush_quad_strip_2);
+}
+
+static void TAG(flush_quad_strip_2)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+
+   IMM_VERTEX( v1 ) = v0;
+   IMM_VERTEX( v0 ) = v0 + 1;
+   FLUSH_VERTEX = TAG(flush_quad_strip_3);
+}
+
+static void TAG(flush_quad_strip_3)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   TNL_VERTEX *v3 = IMM_VERTEX( v3 );
+   TNL_VERTEX *v2 = IMM_VERTEX( v2 );
+   TNL_VERTEX *v1 = IMM_VERTEX( v1 );
+
+   IMM_VERTEX( v0 ) = v3;
+   IMM_VERTEX( v2 ) = v0;
+   IMM_VERTEX( v3 ) = v1;
+   FLUSH_VERTEX = TAG(flush_quad_strip_2);
+
+   if (FALLBACK_OR_CLIPPING) {
+      CLIP_OR_DRAW_TRI( ctx, v3, v2, v0 );
+      CLIP_OR_DRAW_TRI( ctx, v2, v1, v0 );
+   } else {
+      DRAW_TRI( ctx, v3, v2, v0 );
+      DRAW_TRI( ctx, v2, v1, v0 );
+   }
+}
+
+
+
+/* =============================================================
+ * GL_POLYGON
+ */
+
+static void TAG(flush_poly_2)( GLcontext *ctx, TNL_VERTEX *v0 );
+static void TAG(flush_poly_1)( GLcontext *ctx, TNL_VERTEX *v0 );
+
+static void TAG(flush_poly_0)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   ACTIVE_VERTEX = IMM_VERTICES( 1 );
+   FLUSH_VERTEX = TAG(flush_poly_1);
+}
+
+static void TAG(flush_poly_1)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   ACTIVE_VERTEX = IMM_VERTICES( 2 );
+   FLUSH_VERTEX = TAG(flush_poly_2);
+}
+
+#define DO_POLY_TRI( vert0, vert1 )				\
+   if (!HAVE_POLYGONS || FALLBACK_OR_CLIPPING) {	\
+      TNL_VERTEX *v2 = IMM_VERTICES( vert0 );			\
+      TNL_VERTEX *v1 = IMM_VERTICES( vert1 );			\
+      TAG(draw_tri)( ctx, v1, v0, v2 );				\
+   } else if (EXTEND_PRIM( 1 )) {				\
+      EMIT_VERTEX( v0 );					\
+   } else {							\
+      TNL_VERTEX *v2 = IMM_VERTICES( vert0 );			\
+      TNL_VERTEX *v1 = IMM_VERTICES( vert1 );			\
+      BEGIN_PRIM( GL_POLYGON, 3 );				\
+      EMIT_VERTEX( v2 );					\
+      EMIT_VERTEX( v1 );					\
+      EMIT_VERTEX( v0 );					\
+   }      
+
+static void TAG(flush_poly_2)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   ACTIVE_VERTEX = IMM_VERTICES( 1 );
+   FLUSH_VERTEX = TAG(flush_poly_3);
+   DO_POLY_TRI( 0, 1 );
+}
+
+static void TAG(flush_poly_3)( GLcontext *ctx, TNL_VERTEX *v0 )
+{
+   LOCAL_VARS;
+   ACTIVE_VERTEX = IMM_VERTICES( 2 );
+   FLUSH_VERTEX = TAG(flush_poly_2);
+   DO_POLY_TRI( 0, 2 );
+}
+
+
+void (*TAG(flush_tab)[GL_POLYGON+1])( GLcontext *, TNL_VERTEX * ) =
+{
+   TAG(flush_point),
+   TAG(flush_line_0),
+   TAG(flush_line_loop_0),
+   TAG(flush_line_strip_0),
+   TAG(flush_triangle_0),
+   TAG(flush_tri_strip_0),
+   TAG(flush_tri_fan_0),
+   TAG(flush_quad_0),
+   TAG(flush_quad_strip_0),
+   TAG(flush_poly_0),
+};
+
+
+#ifndef PRESERVE_PRIM_DEFS
+#undef LOCAL_VARS
+#undef GET_INTERP_FUNC
+#undef IMM_VERTEX
+#undef IMM_VERTICES
+#undef FLUSH_VERTEX
+#endif
+#undef PRESERVE_PRIM_DEFS
+#undef EXTEND_PRIM
+#undef EMIT_VERTEX
+#undef EMIT_VERTEX_TRI
+#undef EMIT_VERTEX_LINE
+#undef EMIT_VERTEX_POINT
+#undef TAG
diff --git a/src/mesa/tnl_dd/imm/t_dd_imm_tapi.h b/src/mesa/tnl_dd/imm/t_dd_imm_tapi.h
new file mode 100644
index 0000000000..b82a9abebf
--- /dev/null
+++ b/src/mesa/tnl_dd/imm/t_dd_imm_tapi.h
@@ -0,0 +1,75 @@
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.5
+ *
+ * Copyright (C) 1999-2001  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"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Gareth Hughes <gareth@valinux.com>
+ *    Keith Whitwell <keith_whitwell@yahoo.com>
+ */
+
+/* Template for immediate mode texture coordinate functions.
+ */
+
+#ifndef DO_PROJ_TEX
+#error "Need to define DO_PROJ_TEX"
+#endif
+
+
+/* =============================================================
+ * Notify on calls to texture4f, to allow switch to projected texture
+ * vertex format:
+ */
+
+static void TAG(TexCoord4f)( GLfloat s, GLfloat t, GLfloat r, GLfloat q )
+{
+   GET_CURRENT;
+   DO_PROJ_TEX;
+   TEXCOORD4( s, t, r, q );
+}
+
+static void TAG(TexCoord4fv)( const GLfloat *v )
+{
+   GET_CURRENT;
+   DO_PROJ_TEX;
+   TEXCOORD4( v[0], v[1], v[2], v[3] );
+}
+
+static void TAG(MultiTexCoord4fARB)( GLenum target, GLfloat s,
+				     GLfloat t, GLfloat r, GLfloat q )
+{
+   GET_CURRENT;
+   DO_PROJ_TEX;
+   MULTI_TEXCOORD4( unit, s, t, r, q );
+}
+
+static void TAG(MultiTexCoord4fvARB)( GLenum target, const GLfloat *v )
+{
+   GET_CURRENT;
+   DO_PROJ_TEX;
+   MULTI_TEXCOORD4( unit, v[0], v[1], v[2], v[3] );
+}
+
+
+
+#undef DO_PROJ_TEX
+#undef TAG
diff --git a/src/mesa/tnl_dd/imm/t_dd_imm_vapi.h b/src/mesa/tnl_dd/imm/t_dd_imm_vapi.h
new file mode 100644
index 0000000000..95e93b1c83
--- /dev/null
+++ b/src/mesa/tnl_dd/imm/t_dd_imm_vapi.h
@@ -0,0 +1,159 @@
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.5
+ *
+ * Copyright (C) 1999-2001  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"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Gareth Hughes <gareth@valinux.com>
+ *    Keith Whitwell <keithw@valinux.com>
+ */
+
+/* Template for immediate mode vertex functions.
+ */
+
+#define DBG 0
+
+#define VERTEX( ox, oy, oz, ow )
+do {
+   GET_CURRENT_VERTEX;
+   GLfloat w;
+   GLuint mask;
+   const GLfloat * const m = ctx->_ModelProjectMatrix.m;
+
+   if (DO_FULL_MATRIX) {
+      VERTEX_CLIP(0) = m[0] * ox + m[4] * oy + m[8]  * oz + m[12] * ow;
+      VERTEX_CLIP(1) = m[1] * ox + m[5] * oy + m[9]  * oz + m[13] * ow;
+      VERTEX_CLIP(2) = m[2] * ox + m[6] * oy + m[10] * oz + m[14] * ow;
+      VERTEX_CLIP(3) = m[3] * ox + m[7] * oy + m[11] * oz + m[15] * ow;
+      w = VERTEX_CLIP(3);
+   }
+   else if (DO_NOROT_MATRIX) {
+      VERTEX_CLIP(0) = m[0] * ox                          + m[12] * ow;
+      VERTEX_CLIP(1) =             m[5] * oy              + m[13] * ow;
+      VERTEX_CLIP(2) =                         m[10] * oz + m[14] * ow;
+      VERTEX_CLIP(3) =                                              ow;
+      w = ow;
+   } 
+   else {
+      ASSERT (DO_IDENTITY_MATRIX);
+      VERTEX_CLIP(0) = ox;
+      VERTEX_CLIP(1) = oy;
+      VERTEX_CLIP(2) = oz;
+      VERTEX_CLIP(3) = ow;
+      w = ow;
+   }
+
+   mask = 0;
+   if (DO_CLIP_TEST) {
+      if ( VERTEX_CLIP(0) >  w ) mask |= CLIP_RIGHT_BIT;
+      if ( VERTEX_CLIP(0) < -w ) mask |= CLIP_LEFT_BIT;
+      if ( VERTEX_CLIP(1) >  w ) mask |= CLIP_TOP_BIT;
+      if ( VERTEX_CLIP(1) < -w ) mask |= CLIP_BOTTOM_BIT;
+      if ( VERTEX_CLIP(2) >  w ) mask |= CLIP_FAR_BIT;
+      if ( VERTEX_CLIP(2) < -w ) mask |= CLIP_NEAR_BIT;
+      VERTEX_MASK(v) = mask;
+   }
+
+   if (!mask) {
+      if (HAVE_VERTEX_WIN) {
+	 if (!HAVE_HW_VIEWPORT) {
+	    const GLfloat *s = GET_VIEWPORT_MATRIX();
+	    if (HAVE_W && HAVE_HW_DIVIDE) {
+	       VERTEX_WIN( 0 ) = s[0]  * VERTEX_CLIP( 0 ) + s[12];
+	       VERTEX_WIN( 1 ) = s[5]  * VERTEX_CLIP( 1 ) + s[13];
+	       VERTEX_WIN( 2 ) = s[10] * VERTEX_CLIP( 2 ) + s[14];
+	       VERTEX_WIN( 3 ) = w;
+	    }
+	    else {
+	       const GLfloat oow = 1.0/w; /* possibly opt away */
+	       VERTEX_WIN( 0 ) = s[0]  * VERTEX_CLIP( 0 ) * oow + s[12];
+	       VERTEX_WIN( 1 ) = s[5]  * VERTEX_CLIP( 1 ) * oow + s[13];
+	       VERTEX_WIN( 2 ) = s[10] * VERTEX_CLIP( 2 ) * oow + s[14];
+	       if (HAVE_W)
+		  VERTEX_WIN( 3 ) = oow;
+	    }
+	 }
+	 else if (HAVE_W && HAVE_HW_DIVIDE) {
+	    if (!VERTEX_WIN_IS_VERTEX_CLIP) {
+	       VERTEX_WIN( 0 ) = VERTEX_CLIP( 0 );
+	       VERTEX_WIN( 1 ) = VERTEX_CLIP( 1 );
+	       VERTEX_WIN( 2 ) = VERTEX_CLIP( 2 );
+	       VERTEX_WIN( 3 ) = w;
+	    }
+	 }
+	 else {
+	    const GLfloat oow = 1.0/w; /* possibly opt away */
+	    VERTEX_WIN( 0 ) = VERTEX_CLIP( 0 ) * oow;
+	    VERTEX_WIN( 1 ) = VERTEX_CLIP( 1 ) * oow;
+	    VERTEX_WIN( 2 ) = VERTEX_CLIP( 2 ) * oow;
+	    if (HAVE_W)
+	       VERTEX_WIN( 3 ) = oow;
+	 }
+      }
+   } else if (!FALLBACK_OR_CLIPPING) {
+      SET_CLIPPING();		/* transition to clipping */
+   }
+
+   COPY_VERTEX_FROM_CURRENT;
+   BUILD_PRIM_FROM_VERTEX;
+}
+
+/* Let the compiler optimize away the constant operations:
+ */
+static void VTAG(Vertex2f)( GLfloat ox, GLfloat oy )
+{
+   /* Cliptest on clip[2] could also be eliminated...
+    */
+   VERTEX( ox, oy, 0, 1 );
+}
+
+static void VTAG(Vertex2fv)( const GLfloat *obj )
+{
+   /* Cliptest on clip[2] could also be eliminated...
+    */
+   VERTEX( obj[0], obj[1], 0, 1 );
+}
+
+static void VTAG(Vertex3f)( GLfloat ox, GLfloat oy, GLfloat oz )
+{
+   VERTEX( ox, oy, oz, 1 );
+}
+
+static void VTAG(Vertex3fv)( const GLfloat *obj )
+{
+   VERTEX( obj[0], obj[1], obj[2], 1 );
+}
+
+static void VTAG(Vertex4f)( GLfloat ox, GLfloat oy, GLfloat oz, GLfloat ow )
+{
+   VERTEX( ox, oy, oz, ow );
+}
+
+static void VTAG(Vertex4fv)( const GLfloat *obj )
+{
+   VERTEX( obj[0], obj[1], obj[2], obj[3] );
+}
+
+
+#undef DO_FULL_MATRIX
+#undef VTAG
+#undef VERTEX
diff --git a/src/mesa/tnl_dd/imm/t_dd_imm_vb.c b/src/mesa/tnl_dd/imm/t_dd_imm_vb.c
new file mode 100644
index 0000000000..0c4462f556
--- /dev/null
+++ b/src/mesa/tnl_dd/imm/t_dd_imm_vb.c
@@ -0,0 +1,204 @@
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.5
+ *
+ * Copyright (C) 1999-2001  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"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith_whitwell@yahoo.com>
+ */
+
+/* Template to build clipping routines to support t_dd_imm_primtmp.h.
+ *
+ * The TAG(draw_line) and TAG(draw_triangle) routines are called in
+ * clipping and fallback scenarios, and when the native hardware
+ * primitive (eg polygons) is unavailable.
+ */
+
+
+#define CLIP_DOTPROD(K, A, B, C, D)		\
+   (CLIP_X(K)*A + CLIP_Y(K)*B + 	\
+    CLIP_Z(K)*C + CLIP_W(K)*D)
+
+#define POLY_CLIP( PLANE, A, B, C, D )					\
+do {									\
+   if (mask & PLANE) {							\
+      TNL_VERTEX **indata = inlist[in];					\
+      TNL_VERTEX **outdata = inlist[in ^= 1];				\
+      TNL_VERTEX *J = indata[0];					\
+      GLfloat dpJ = CLIP_DOTPROD(J, A, B, C, D );			\
+      GLuint outcount = 0;						\
+      GLuint i;								\
+									\
+      indata[n] = indata[0]; /* prevent rotation of vertices */		\
+      for (i = 1; i <= n; i++) {					\
+	 TNL_VERTEX *I = indata[i];					\
+	 GLfloat dpI = CLIP_DOTPROD(idx, A, B, C, D );			\
+									\
+	 if (!NEGATIVE(dpPrev)) {					\
+	    outdata[outcount++] = J;					\
+	 }								\
+									\
+	 if (DIFFERENT_SIGNS(dpI, dpJ)) {				\
+            TNL_VERTEX *O = verts++;					\
+            outdata[outcount++] = O;					\
+	    if (NEGATIVE(dpI)) {					\
+	       /* Going out of bounds.  Avoid division by zero as we	\
+		* know dp != dpPrev from DIFFERENT_SIGNS, above.	\
+		*/							\
+	       GLfloat t = dpI / (dpI - dpJ);				\
+      	       INTERP( ctx, t, O, I, J );				\
+	    } else {							\
+	       /* Coming back in.					\
+		*/							\
+	       GLfloat t = dpJ / (dpJ - dpI);				\
+	       INTERP( ctx, t, O, J, I );				\
+	    }								\
+	 }								\
+									\
+	 J = I;								\
+	 dpJ = dpI;							\
+      }									\
+									\
+      if (outcount < 3)							\
+	 return;							\
+									\
+      nr = outcount;							\
+   }									\
+} while (0)
+
+
+#define LINE_CLIP(PLANE, A, B, C, D )			\
+do {							\
+   if (mask & PLANE) {					\
+      GLfloat dpI = CLIP_DOTPROD( I, A, B, C, D );	\
+      GLfloat dpJ = CLIP_DOTPROD( J, A, B, C, D );	\
+							\
+      if (DIFFERENT_SIGNS(dpI, dpJ)) {			\
+         TNL_VERTEX *O = verts++;			\
+	 if (NEGATIVE(dpJ)) {				\
+	    GLfloat t = dpI / (dpI - dpJ);		\
+	    INTERP( ctx, t, O, I, J );	\
+            J = O;					\
+	 } else {					\
+  	    GLfloat t = dpJ / (dpJ - dpI);		\
+	    INTERP( ctx, t, O, J, I );	\
+            I = O;					\
+	 }						\
+      }							\
+      else if (NEGATIVE(dpI))				\
+	 return;					\
+  }							\
+} while (0)
+
+
+
+/* Clip a line against the viewport and user clip planes.
+ */
+static void TAG(clip_draw_line)( GLcontext *ctx,
+				 TNL_VERTEX *I,
+				 TNL_VERTEX *J,
+				 GLuint mask )
+{
+   LOCAL_VARS;
+   GET_INTERP_FUNC;
+   TNL_VERTEX tmp[MAX_CLIPPED_VERTICES];
+   TNL_VERTEX *verts = tmp;
+   TNL_VERTEX *pv = J;
+
+   LINE_CLIP( CLIP_RIGHT_BIT,  -1,  0,  0, 1 );
+   LINE_CLIP( CLIP_LEFT_BIT,    1,  0,  0, 1 );
+   LINE_CLIP( CLIP_TOP_BIT,     0, -1,  0, 1 );
+   LINE_CLIP( CLIP_BOTTOM_BIT,  0,  1,  0, 1 );
+   LINE_CLIP( CLIP_FAR_BIT,     0,  0, -1, 1 );
+   LINE_CLIP( CLIP_NEAR_BIT,    0,  0,  1, 1 );
+
+   if ((ctx->_TriangleCaps & DD_FLATSHADE) && J != pv)
+      COPY_PV( ctx, J, pv );
+
+   DRAW_LINE( I, J );
+}
+
+
+/* Clip a triangle against the viewport and user clip planes.
+ */
+static void TAG(clip_draw_triangle)( GLcontext *ctx,
+				     TNL_VERTEX *v0,
+				     TNL_VERTEX *v1,
+				     TNL_VERTEX *v2,
+				     GLuint mask )
+{
+   LOCAL_VARS;
+   GET_INTERP_FUNC;
+   TNL_VERTEX tmp[MAX_CLIPPED_VERTICES];
+   TNL_VERTEX *verts = tmp;
+   TNL_VERTEX *(inlist[2][MAX_CLIPPED_VERTICES]);
+   TNL_VERTEX **out;
+   GLuint in = 0;
+   GLuint n = 3;
+   GLuint i;
+
+   ASSIGN_3V(inlist, v2, v0, v1 ); /* pv rotated to slot zero */
+
+   POLY_CLIP( CLIP_RIGHT_BIT,  -1,  0,  0, 1 );
+   POLY_CLIP( CLIP_LEFT_BIT,    1,  0,  0, 1 );
+   POLY_CLIP( CLIP_TOP_BIT,     0, -1,  0, 1 );
+   POLY_CLIP( CLIP_BOTTOM_BIT,  0,  1,  0, 1 );
+   POLY_CLIP( CLIP_FAR_BIT,     0,  0, -1, 1 );
+   POLY_CLIP( CLIP_NEAR_BIT,    0,  0,  1, 1 );
+
+   if ((ctx->_TriangleCaps & DD_FLATSHADE) && v2 != inlist[0]) 
+      COPY_PV( ctx, inlist[0], v2 );
+
+   out = inlist[in];
+   DRAW_POLYGON( out, n );
+}
+
+
+static __inline void TAG(draw_triangle)( GLcontext *ctx,
+					 TNL_VERTEX *v0,
+					 TNL_VERTEX *v1,
+					 TNL_VERTEX *v2 )
+{
+   LOCAL_VARS;
+   GLubyte ormask = (v0->mask | v1->mask | v2->mask);
+
+   if ( !ormask ) {
+      DRAW_TRI( v0, v1, v2 );
+   } else if ( !(v0->mask & v1->mask & v2->mask) ) {
+      TAG(clip_draw_triangle)( ctx, v0, v1, v2, ormask );
+   }
+}
+
+static __inline void TAG(draw_line)( GLcontext *ctx,
+				     TNL_VERTEX *v0,
+				     TNL_VERTEX *v1 )
+{
+   LOCAL_VARS;
+   GLubyte ormask = (v0->mask | v1->mask);
+
+   if ( !ormask ) {
+      DRAW_LINE( v0, v1 );
+   } else if ( !(v0->mask & v1->mask) ) {
+      TAG(clip_draw_line)( ctx, v0, v1, ormask );
+   }
+}
+
diff --git a/src/mesa/tnl_dd/imm/t_dd_imm_vbtmp.h b/src/mesa/tnl_dd/imm/t_dd_imm_vbtmp.h
new file mode 100644
index 0000000000..2f76553cff
--- /dev/null
+++ b/src/mesa/tnl_dd/imm/t_dd_imm_vbtmp.h
@@ -0,0 +1,268 @@
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.5
+ *
+ * Copyright (C) 1999-2001  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"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith_whitwell@yahoo.com>
+ */
+
+/* Template to build support for t_dd_imm_* tnl module using vertices
+ * as defined in t_dd_vertex.h.
+ *
+ * See t_dd_vbtmp.h for definitions of arguments to this file.
+ * Unfortunately it seems necessary to duplicate a lot of that code.
+ */
+
+#ifndef LOCALVARS
+#define LOCALVARS
+#endif
+
+
+
+/* COPY_VERTEX_FROM_CURRENT in t_dd_imm_vapi.c
+ */
+static void TAG(emit_vfmt)( GLcontext *ctx, VERTEX *v )
+{
+   LOCALVARS
+      ;
+
+   /* This template assumes (like t_dd_vbtmp.h) that color is ubyte.
+    */
+   if (DO_TEX0 || DO_TEX1 || !HAVE_TINY_VERTICES)
+   {
+      const GLubyte *col = GET_HARDWARE_COLOR();
+      if (HAVE_RGBA_COLOR) {
+	 v->v.ui[4] = *(GLuint *)&col;
+      } else {
+	 v->v.color.blue  = col[2];
+	 v->v.color.green = col[1];
+	 v->v.color.red   = col[0];
+	 v->v.color.alpha = col[3];
+      }
+   }
+   else {
+      if (HAVE_RGBA_COLOR) {
+	 v->v.ui[3] = *(GLuint *)col;
+      }
+      else {
+	 v->tv.color.blue  = col[2];
+	 v->tv.color.green = col[1];
+	 v->tv.color.red   = col[0];
+	 v->tv.color.alpha = col[3];
+      }
+   }
+
+   if (DO_TEX0) {
+      GLfloat *tc = ctx->Current.Texture[0];
+      v->v.u0 = tc[0];
+      v->v.v0 = tc[1];
+      if (DO_PTEX) {
+	 if (HAVE_PTEX_VERTICES) {
+	    v->pv.q0 = tc[3];
+	 } 
+	 else {
+	    float rhw = 1.0 / tc[3];
+	    v->v.w *= tc[3];
+	    v->v.u0 *= rhw;
+	    v->v.v0 *= rhw;
+	 } 
+      } 
+   }
+   if (DO_TEX1) {
+      GLfloat *tc = ctx->Current.Texture[1];
+      if (DO_PTEX) {
+	 v->pv.u1 = tc[0];
+	 v->pv.v1 = tc[1];
+	 v->pv.q1 = tc[3];
+      } 
+      else {
+	 v->v.u1 = tc[0];
+	 v->v.v1 = tc[1];
+      }
+   } 
+   else if (DO_PTEX) {
+      *(GLuint *)&v->pv.q1 = 0;	/* avoid culling on radeon */
+   }
+   if (DO_TEX2) {
+      GLfloat *tc = ctx->Current.Texture[2];
+      if (DO_PTEX) {
+	 v->pv.u2 = tc[0];
+	 v->pv.v2 = tc[1];
+	 v->pv.q2 = tc[3];
+      } 
+      else {
+	 v->v.u2 = tc[0];
+	 v->v.v2 = tc[1];
+      }
+   } 
+   if (DO_TEX3) {
+      GLfloat *tc = ctx->Current.Texture[3];
+      if (DO_PTEX) {
+	 v->pv.u3 = tc[0];
+	 v->pv.v3 = tc[1];
+	 v->pv.q3 = tc[3];
+      } 
+      else {
+	 v->v.u3 = tc[0];
+	 v->v.v3 = tc[1];
+      }
+   } 
+}
+
+
+
+
+static void TAG(interp)( GLcontext *ctx,
+			 GLfloat t,
+			 TNL_VERTEX *dst,
+			 TNL_VERTEX *in,
+			 TNL_VERTEX *out )
+{
+   LOCALVARS
+   const GLfloat *s = GET_VIEWPORT_MAT();
+   GLfloat w;
+
+   (void)s;
+
+   if (HAVE_HW_DIVIDE) {
+      VIEWPORT_X( dst->v.v.x, dst->clip[0] );
+      VIEWPORT_Y( dst->v.v.y, dst->clip[1] );
+      VIEWPORT_Z( dst->v.v.z, dst->clip[2] );
+      w = dstclip[3];
+   }
+   else {
+      w = 1.0 / dst->clip[3];
+      VIEWPORT_X( dst->v.v.x, dst->clip[0] * w );
+      VIEWPORT_Y( dst->v.v.y, dst->clip[1] * w );
+      VIEWPORT_Z( dst->v.v.z, dst->clip[2] * w );
+   }
+
+   if (HAVE_HW_DIVIDE || DO_TEX0) {
+
+      dst->v.v.w = w;
+
+      INTERP_UB( t, dst->v.ub4[4][0], out->v.ub4[4][0], in->v.ub4[4][0] );
+      INTERP_UB( t, dst->v.ub4[4][1], out->v.ub4[4][1], in->v.ub4[4][1] );
+      INTERP_UB( t, dst->v.ub4[4][2], out->v.ub4[4][2], in->v.ub4[4][2] );
+      INTERP_UB( t, dst->v.ub4[4][3], out->v.ub4[4][3], in->v.ub4[4][3] );
+
+      if (DO_TEX0) {
+	 if (DO_PTEX) {
+	    if (HAVE_PTEX_VERTICES) {
+	       INTERP_F( t, dst->v.pv.u0, out->v.pv.u0, in->v.pv.u0 );
+	       INTERP_F( t, dst->v.pv.v0, out->v.pv.v0, in->v.pv.v0 );
+	       INTERP_F( t, dst->v.pv.q0, out->v.pv.q0, in->v.pv.q0 );
+	    } else {
+	       GLfloat wout = out->clip[3]; /* projected clip */
+	       GLfloat win = in->clip[3]; /* projected clip */
+	       GLfloat qout = out->v.pv.w / wout;
+	       GLfloat qin = in->v.pv.w / win;
+	       GLfloat qdst, rqdst;
+
+	       ASSERT( !HAVE_HW_DIVIDE ); /* assert win, wout projected clip */
+
+	       INTERP_F( t, dst->v.v.u0, out->v.v.u0 * qout, in->v.v.u0 * qin );
+	       INTERP_F( t, dst->v.v.v0, out->v.v.v0 * qout, in->v.v.v0 * qin );
+	       INTERP_F( t, qdst, qout, qin );
+
+	       rqdst = 1.0 / qdst;
+	       dst->v.v.u0 *= rqdst;
+	       dst->v.v.v0 *= rqdst;
+	       dst->v.v.w *= rqdst;
+	    }
+	 }
+	 else {
+	    INTERP_F( t, dst->v.v.u0, out->v.v.u0, in->v.v.u0 );
+	    INTERP_F( t, dst->v.v.v0, out->v.v.v0, in->v.v.v0 );
+	 }
+      }
+      if (DO_TEX1) {
+	 if (DO_PTEX) {
+	    INTERP_F( t, dst->v.pv.u1, out->v.pv.u1, in->v.pv.u1 );
+	    INTERP_F( t, dst->v.pv.v1, out->v.pv.v1, in->v.pv.v1 );
+	    INTERP_F( t, dst->v.pv.q1, out->v.pv.q1, in->v.pv.q1 );
+	 } else {
+	    INTERP_F( t, dst->v.v.u1, out->v.v.u1, in->v.v.u1 );
+	    INTERP_F( t, dst->v.v.v1, out->v.v.v1, in->v.v.v1 );
+	 }
+      }
+      else if (DO_PTEX) {
+	 dst->v.pv.q0 = 0.0;	/* must be a valid float on radeon */
+      }
+      if (DO_TEX2) {
+	 if (DO_PTEX) {
+	    INTERP_F( t, dst->v.pv.u2, out->v.pv.u2, in->v.pv.u2 );
+	    INTERP_F( t, dst->v.pv.v2, out->v.pv.v2, in->v.pv.v2 );
+	    INTERP_F( t, dst->v.pv.q2, out->v.pv.q2, in->v.pv.q2 );
+	 } else {
+	    INTERP_F( t, dst->v.v.u2, out->v.v.u2, in->v.v.u2 );
+	    INTERP_F( t, dst->v.v.v2, out->v.v.v2, in->v.v.v2 );
+	 }
+      }
+      if (DO_TEX3) {
+	 if (DO_PTEX) {
+	    INTERP_F( t, dst->v.pv.u3, out->v.pv.u3, in->v.pv.u3 );
+	    INTERP_F( t, dst->v.pv.v3, out->v.pv.v3, in->v.pv.v3 );
+	    INTERP_F( t, dst->v.pv.q3, out->v.pv.q3, in->v.pv.q3 );
+	 } else {
+	    INTERP_F( t, dst->v.v.u3, out->v.v.u3, in->v.v.u3 );
+	    INTERP_F( t, dst->v.v.v3, out->v.v.v3, in->v.v.v3 );
+	 }
+      }
+   } else {
+      /* 4-dword vertex.  Color is in v[3] and there is no oow coordinate.
+       */
+      INTERP_UB( t, dst->v.ub4[3][0], out->v.ub4[3][0], in->v.ub4[3][0] );
+      INTERP_UB( t, dst->v.ub4[3][1], out->v.ub4[3][1], in->v.ub4[3][1] );
+      INTERP_UB( t, dst->v.ub4[3][2], out->v.ub4[3][2], in->v.ub4[3][2] );
+      INTERP_UB( t, dst->v.ub4[3][3], out->v.ub4[3][3], in->v.ub4[3][3] );
+   }
+}
+
+
+static __inline void TAG(copy_pv)( GLcontext *ctx,
+				   TNL_VERTEX *dst, 
+				   TNL_VERTEX *src )
+{
+   if (DO_TEX0 || DO_TEX1 || !HAVE_TINY_VERTICES) {
+      dst->v.v.ui[4] = src->v.v.ui[4];
+   }
+   else {
+      dst->v.v.ui[3] = src->v.v.ui[3];
+   }
+}
+
+
+
+static void TAG(init)( void )
+{
+   setup_tab[IND].emit = TAG(emit_vfmt);
+   setup_tab[IND].interp = TAG(interp_vfmt);
+}
+
+
+#undef IND
+#undef TAG
+
+
+