Changes to reduce the memory footprint of display lists

1 files changed, 112 insertions, 74 deletions

diff --git a/src/mesa/main/eval.c b/src/mesa/main/eval.c
index 18676e73ad..eee7a84509 100644
--- a/src/mesa/main/eval.c
+++ b/src/mesa/main/eval.c
@@ -1,4 +1,4 @@
-/* $Id: eval.c,v 1.4 1999/10/13 18:42:50 brianp Exp $ */
+/* $Id: eval.c,v 1.5 1999/10/19 18:37:03 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -1990,12 +1990,13 @@ void gl_GetMapiv( GLcontext* ctx, GLenum target, GLenum query, GLint *v )
 
 
 static void eval_points1( GLfloat outcoord[][4], 
-		   GLfloat coord[][4],
-		   const GLuint *flags,
-		   GLfloat du, GLfloat u1 )
+			  GLfloat coord[][4],
+			  const GLuint *flags,
+			  GLuint start,
+			  GLfloat du, GLfloat u1 )
 {
    GLuint i;
-   for (i = VB_START ; !(flags[i] & VERT_END_VB) ; i++)
+   for (i = start ; !(flags[i] & VERT_END_VB) ; i++)
       if (flags[i] & VERT_EVAL_P1) 
 	 outcoord[i][0] = coord[i][0] * du + u1;
       else if (flags[i] & VERT_EVAL_ANY) {
@@ -2005,13 +2006,14 @@ static void eval_points1( GLfloat outcoord[][4],
 }
 
 static void eval_points2( GLfloat outcoord[][4], 
-		   GLfloat coord[][4],
-		   const GLuint *flags,
-		   GLfloat du, GLfloat u1,
-		   GLfloat dv, GLfloat v1 )
+			  GLfloat coord[][4],
+			  const GLuint *flags,
+			  GLuint start,
+			  GLfloat du, GLfloat u1,
+			  GLfloat dv, GLfloat v1 )
 {
    GLuint i;
-   for (i = VB_START ; !(flags[i] & VERT_END_VB) ; i++)
+   for (i = start ; !(flags[i] & VERT_END_VB) ; i++)
       if (flags[i] & VERT_EVAL_P2) {
 	 outcoord[i][0] = coord[i][0] * du + u1;
 	 outcoord[i][1] = coord[i][1] * dv + v1;
@@ -2033,7 +2035,8 @@ static const GLubyte dirty_flags[5] = {
 
 static GLvector4f *eval1_4f( GLvector4f *dest, 
 			     GLfloat coord[][4], 
-			     const GLuint *flags, 
+			     const GLuint *flags,
+			     GLuint start,
 			     GLuint dimension,
 			     struct gl_1d_map *map )
 {
@@ -2042,7 +2045,7 @@ static GLvector4f *eval1_4f( GLvector4f *dest,
    GLfloat (*to)[4] = dest->data;
    GLuint i;
    
-   for (i = VB_START ; !(flags[i] & VERT_END_VB) ; i++)
+   for (i = start ; !(flags[i] & VERT_END_VB) ; i++)
       if (flags[i] & (VERT_EVAL_C1|VERT_EVAL_P1)) {
 	 GLfloat u = (coord[i][0] - u1) * du;
 	 ASSIGN_4V(to[i], 0,0,0,1);
@@ -2050,6 +2053,7 @@ static GLvector4f *eval1_4f( GLvector4f *dest,
       }
 
    dest->count = i;
+   dest->start = VEC_ELT(dest, GLfloat, start);
    dest->size = MAX2(dest->size, dimension);
    dest->flags |= dirty_flags[dimension];
    return dest;
@@ -2058,7 +2062,8 @@ static GLvector4f *eval1_4f( GLvector4f *dest,
 
 static GLvector1ui *eval1_1ui( GLvector1ui *dest, 
 			       GLfloat coord[][4], 
-			       const GLuint *flags, 
+			       const GLuint *flags,
+			       GLuint start,
 			       struct gl_1d_map *map )
 {
    const GLfloat u1 = map->u1;
@@ -2066,7 +2071,7 @@ static GLvector1ui *eval1_1ui( GLvector1ui *dest,
    GLuint *to = dest->data;
    GLuint i;
 
-   for (i = VB_START ; !(flags[i] & VERT_END_VB) ; i++)
+   for (i = start ; !(flags[i] & VERT_END_VB) ; i++)
       if (flags[i] & (VERT_EVAL_C1|VERT_EVAL_P1)) {
 	 GLfloat u = (coord[i][0] - u1) * du;
 	 GLfloat tmp;
@@ -2074,42 +2079,46 @@ static GLvector1ui *eval1_1ui( GLvector1ui *dest,
 	 to[i] = (GLuint) (GLint) tmp;
       }
 
+   dest->start = VEC_ELT(dest, GLuint, start);
    dest->count = i;
    return dest;
 }
 
 static GLvector3f *eval1_norm( GLvector3f *dest, 
-			GLfloat coord[][4],
-			GLuint *flags, /* not const */
-			struct gl_1d_map *map )
+			       GLfloat coord[][4],
+			       GLuint *flags, /* not const */
+			       GLuint start,
+			       struct gl_1d_map *map )
 {
    const GLfloat u1 = map->u1;
    const GLfloat du = map->du;
    GLfloat (*to)[3] = dest->data;
    GLuint i;
 
-   for (i = VB_START ; !(flags[i] & VERT_END_VB) ; i++)
+   for (i = start ; !(flags[i] & VERT_END_VB) ; i++)
       if (flags[i] & (VERT_EVAL_C1|VERT_EVAL_P1)) {
 	 GLfloat u = (coord[i][0] - u1) * du;
 	 horner_bezier_curve(map->Points, to[i], u, 3, map->Order);
 	 flags[i+1] |= VERT_NORM; /* reset */
       }
 
+   dest->start = VEC_ELT(dest, GLfloat, start);
    dest->count = i;
    return dest;
 }
 
 static GLvector4ub *eval1_color( GLvector4ub *dest, 
-			  GLfloat coord[][4],
-			  GLuint *flags, /* not const */
-			  struct gl_1d_map *map )
+				 GLfloat coord[][4],
+				 GLuint *flags, /* not const */
+				 GLuint start,
+				 struct gl_1d_map *map )
 {   
    const GLfloat u1 = map->u1;
    const GLfloat du = map->du;
    GLubyte (*to)[4] = dest->data;
    GLuint i;
 
-   for (i = VB_START ; !(flags[i] & VERT_END_VB) ; i++)
+   for (i = start ; !(flags[i] & VERT_END_VB) ; i++)
       if (flags[i] & (VERT_EVAL_C1|VERT_EVAL_P1)) {
 	 GLfloat u = (coord[i][0] - u1) * du;
 	 GLfloat fcolor[4];
@@ -2118,6 +2127,7 @@ static GLvector4ub *eval1_color( GLvector4ub *dest,
 	 flags[i+1] |= VERT_RGBA; /* reset */
       }
 
+   dest->start = VEC_ELT(dest, GLubyte, start);
    dest->count = i;
    return dest;
 }
@@ -2129,6 +2139,7 @@ static GLvector4f *eval2_obj_norm( GLvector4f *obj_ptr,
 				   GLvector3f *norm_ptr,
 				   GLfloat coord[][4], 
 				   GLuint *flags, 
+				   GLuint start,
 				   GLuint dimension,
 				   struct gl_2d_map *map )
 {
@@ -2140,7 +2151,7 @@ static GLvector4f *eval2_obj_norm( GLvector4f *obj_ptr,
    GLfloat (*normal)[3] = norm_ptr->data;
    GLuint i;
    
-   for (i = VB_START ; !(flags[i] & VERT_END_VB) ; i++)
+   for (i = start ; !(flags[i] & VERT_END_VB) ; i++)
       if (flags[i] & (VERT_EVAL_C2|VERT_EVAL_P2)) {
 	 GLfloat u = (coord[i][0] - u1) * du;
 	 GLfloat v = (coord[i][1] - v1) * dv;
@@ -2155,6 +2166,7 @@ static GLvector4f *eval2_obj_norm( GLvector4f *obj_ptr,
 	 flags[i+1] |= VERT_NORM;
       }
  
+   obj_ptr->start = VEC_ELT(obj_ptr, GLfloat, start);
    obj_ptr->count = i;
    obj_ptr->size = MAX2(obj_ptr->size, dimension);
    obj_ptr->flags |= dirty_flags[dimension];
@@ -2164,7 +2176,8 @@ static GLvector4f *eval2_obj_norm( GLvector4f *obj_ptr,
 
 static GLvector4f *eval2_4f( GLvector4f *dest, 
 			     GLfloat coord[][4], 
-			     const GLuint *flags, 
+			     const GLuint *flags,
+			     GLuint start,
 			     GLuint dimension,
 			     struct gl_2d_map *map )
 {
@@ -2175,7 +2188,7 @@ static GLvector4f *eval2_4f( GLvector4f *dest,
    GLfloat (*to)[4] = dest->data;
    GLuint i;
 
-   for (i = VB_START ; !(flags[i] & VERT_END_VB) ; i++)
+   for (i = start ; !(flags[i] & VERT_END_VB) ; i++)
       if (flags[i] & (VERT_EVAL_C2|VERT_EVAL_P2)) {
 	 GLfloat u = (coord[i][0] - u1) * du;
 	 GLfloat v = (coord[i][1] - v1) * dv;
@@ -2183,6 +2196,7 @@ static GLvector4f *eval2_4f( GLvector4f *dest,
 			    map->Uorder, map->Vorder);
       }
 
+   dest->start = VEC_ELT(dest, GLfloat, start);
    dest->count = i;
    dest->size = MAX2(dest->size, dimension);
    dest->flags |= dirty_flags[dimension];
@@ -2193,6 +2207,7 @@ static GLvector4f *eval2_4f( GLvector4f *dest,
 static GLvector3f *eval2_norm( GLvector3f *dest, 
 			       GLfloat coord[][4], 
 			       GLuint *flags, 
+			       GLuint start,
 			       struct gl_2d_map *map )
 {
    const GLfloat u1 = map->u1;
@@ -2202,7 +2217,7 @@ static GLvector3f *eval2_norm( GLvector3f *dest,
    GLfloat (*to)[3] = dest->data;
    GLuint i;
 
-   for (i = VB_START ; !(flags[i] & VERT_END_VB) ; i++)
+   for (i = start ; !(flags[i] & VERT_END_VB) ; i++)
       if (flags[i] & (VERT_EVAL_C2|VERT_EVAL_P2)) {
 	 GLfloat u = (coord[i][0] - u1) * du;
 	 GLfloat v = (coord[i][1] - v1) * dv;
@@ -2211,6 +2226,7 @@ static GLvector3f *eval2_norm( GLvector3f *dest,
  	 flags[i+1] |= VERT_NORM; /* reset */
      }
 
+   dest->start = VEC_ELT(dest, GLfloat, start);
    dest->count = i;
    return dest;
 }
@@ -2218,7 +2234,8 @@ static GLvector3f *eval2_norm( GLvector3f *dest,
 
 static GLvector1ui *eval2_1ui( GLvector1ui *dest, 
 			       GLfloat coord[][4], 
-			       const GLuint *flags, 
+			       const GLuint *flags,
+			       GLuint start,
 			       struct gl_2d_map *map )
 {
    const GLfloat u1 = map->u1;
@@ -2228,7 +2245,7 @@ static GLvector1ui *eval2_1ui( GLvector1ui *dest,
    GLuint *to = dest->data;
    GLuint i;
 
-   for (i = VB_START ; !(flags[i] & VERT_END_VB) ; i++)
+   for (i = start ; !(flags[i] & VERT_END_VB) ; i++)
       if (flags[i] & (VERT_EVAL_C2|VERT_EVAL_P2)) {
 	 GLfloat u = (coord[i][0] - u1) * du;
 	 GLfloat v = (coord[i][1] - v1) * dv;
@@ -2239,6 +2256,7 @@ static GLvector1ui *eval2_1ui( GLvector1ui *dest,
 	 to[i] = (GLuint) (GLint) tmp;
       }
 
+   dest->start = VEC_ELT(dest, GLuint, start);
    dest->count = i;
    return dest;
 }
@@ -2248,6 +2266,7 @@ static GLvector1ui *eval2_1ui( GLvector1ui *dest,
 static GLvector4ub *eval2_color( GLvector4ub *dest,
 				 GLfloat coord[][4], 
 				 GLuint *flags,
+				 GLuint start,
 				 struct gl_2d_map *map )
 {
    const GLfloat u1 = map->u1;
@@ -2257,7 +2276,7 @@ static GLvector4ub *eval2_color( GLvector4ub *dest,
    GLubyte (*to)[4] = dest->data;
    GLuint i;
 
-   for (i = VB_START ; !(flags[i] & VERT_END_VB) ; i++)
+   for (i = start ; !(flags[i] & VERT_END_VB) ; i++)
       if (flags[i] & (VERT_EVAL_C2|VERT_EVAL_P2)) {
 	 GLfloat u = (coord[i][0] - u1) * du;
 	 GLfloat v = (coord[i][1] - v1) * dv;
@@ -2268,64 +2287,75 @@ static GLvector4ub *eval2_color( GLvector4ub *dest,
 	 flags[i+1] |= VERT_RGBA; /* reset */
       }
 
+   dest->start = VEC_ELT(dest, GLubyte, start);
    dest->count = i;
    return dest;
 }
 
 
 static GLvector4f *copy_4f( GLvector4f *out, CONST GLvector4f *in, 
-			    const GLuint *flags)
+			    const GLuint *flags,
+			    GLuint start )
 {
    GLfloat (*to)[4] = out->data;
    GLfloat (*from)[4] = in->data;
    GLuint i;
    
-   for ( i = VB_START ; !(flags[i] & VERT_END_VB) ; i++) 
+   for ( i = start ; !(flags[i] & VERT_END_VB) ; i++) 
       if (!(flags[i] & VERT_EVAL_ANY)) 
 	 COPY_4FV( to[i], from[i] );
    
+   out->start = VEC_ELT(out, GLfloat, start);
    return out;
 }
 
 static GLvector3f *copy_3f( GLvector3f *out, CONST GLvector3f *in, 
-			    const GLuint *flags)
+			    const GLuint *flags,
+			    GLuint start )
 {
    GLfloat (*to)[3] = out->data;
    GLfloat (*from)[3] = in->data;
    GLuint i;
    
-   for ( i = VB_START ; !(flags[i] & VERT_END_VB) ; i++) 
+   for ( i = start ; !(flags[i] & VERT_END_VB) ; i++) 
       if (!(flags[i] & VERT_EVAL_ANY)) 
 	 COPY_3V( to[i], from[i] );
    
+   out->start = VEC_ELT(out, GLfloat, start);
    return out;
 }
 
-static GLvector4ub *copy_4ub( GLvector4ub *out, CONST GLvector4ub *in, 
-			      const GLuint *flags )
+static GLvector4ub *copy_4ub( GLvector4ub *out, 
+			      CONST GLvector4ub *in, 
+			      const GLuint *flags,
+			      GLuint start )
 {
    GLubyte (*to)[4] = out->data;
    GLubyte (*from)[4] = in->data;
    GLuint i;
    
-   for ( i = VB_START ; !(flags[i] & VERT_END_VB) ; i++) 
+   for ( i = start ; !(flags[i] & VERT_END_VB) ; i++) 
       if (!(flags[i] & VERT_EVAL_ANY)) 
 	 COPY_4UBV( to[i], from[i] );
 
+   out->start = VEC_ELT(out, GLubyte, start);
    return out;
 }
 
-static GLvector1ui *copy_1ui( GLvector1ui *out, CONST GLvector1ui *in, 
-			      const GLuint *flags )
+static GLvector1ui *copy_1ui( GLvector1ui *out, 
+			      CONST GLvector1ui *in, 
+			      const GLuint *flags,
+			      GLuint start )
 {
    GLuint *to = out->data;
    CONST GLuint *from = in->data;
    GLuint i;
    
-   for ( i = VB_START ; !(flags[i] & VERT_END_VB) ; i++) 
+   for ( i = start ; !(flags[i] & VERT_END_VB) ; i++) 
       if (!(flags[i] & VERT_EVAL_ANY)) 
 	 to[i] = from[i];
 
+   out->start = VEC_ELT(out, GLuint, start);
    return out;
 }
 
@@ -2354,7 +2384,7 @@ void gl_eval_vb( struct vertex_buffer *VB )
 
    GLuint any_eval1 = VB->OrFlag & (VERT_EVAL_C1|VERT_EVAL_P1);
    GLuint any_eval2 = VB->OrFlag & (VERT_EVAL_C2|VERT_EVAL_P2);
-   GLuint all_eval = VB->AndFlag & VERT_EVAL_ANY;
+   GLuint all_eval = IM->AndFlag & VERT_EVAL_ANY;
 
    /* Handle the degenerate cases.
     */
@@ -2379,7 +2409,7 @@ void gl_eval_vb( struct vertex_buffer *VB )
     * work on useful changes.
     */
    if (VB->PurgeFlags) {
-      if (!any_eval1 && !any_eval2 && all_eval) VB->Count = VB_START;
+      if (!any_eval1 && !any_eval2 && all_eval) VB->Count = VB->Start;
       gl_purge_vertices( VB );
       if (!any_eval1 && !any_eval2) return;
    } else
@@ -2389,7 +2419,7 @@ void gl_eval_vb( struct vertex_buffer *VB )
     */
    if (any_eval1 && (VB->OrFlag & VERT_EVAL_P1)) 
    {
-      eval_points1( IM->Obj, coord, flags, 
+      eval_points1( IM->Obj, coord, flags, IM->Start,
 		    ctx->Eval.MapGrid1du,
 		    ctx->Eval.MapGrid1u1);
 
@@ -2398,7 +2428,7 @@ void gl_eval_vb( struct vertex_buffer *VB )
 
    if (any_eval2 && (VB->OrFlag & VERT_EVAL_P2)) 
    {
-      eval_points2( IM->Obj, coord, flags, 
+      eval_points2( IM->Obj, coord, flags, IM->Start,
 		    ctx->Eval.MapGrid2du,
 		    ctx->Eval.MapGrid2u1,
 		    ctx->Eval.MapGrid2dv,
@@ -2415,17 +2445,17 @@ void gl_eval_vb( struct vertex_buffer *VB )
       GLvector1ui  *out_index = &IM->v.Index;
 
       if (ctx->Eval.Map1Index && any_eval1) 
-	 VB->IndexPtr = eval1_1ui( out_index, coord, flags, 
+	 VB->IndexPtr = eval1_1ui( out_index, coord, flags, IM->Start,
 				   &ctx->EvalMap.Map1Index );
       
       if (ctx->Eval.Map2Index && any_eval2)
-	 VB->IndexPtr = eval2_1ui( out_index, coord, flags, 
+	 VB->IndexPtr = eval2_1ui( out_index, coord, flags, IM->Start,
 				   &ctx->EvalMap.Map2Index );
 	 
       if (VB->IndexPtr != in_index) {
 	 new_flags |= VERT_INDEX;
 	 if (!all_eval)
-	    VB->IndexPtr = copy_1ui( out_index, in_index, flags );
+	    VB->IndexPtr = copy_1ui( out_index, in_index, flags, IM->Start );
       }
    }
 
@@ -2435,17 +2465,17 @@ void gl_eval_vb( struct vertex_buffer *VB )
       GLvector4ub  *out_color = &IM->v.Color;
 
       if (ctx->Eval.Map1Color4 && any_eval1) 
-	 VB->ColorPtr = eval1_color( out_color, coord, flags, 
+	 VB->ColorPtr = eval1_color( out_color, coord, flags, IM->Start,
 				   &ctx->EvalMap.Map1Color4 );
       
       if (ctx->Eval.Map2Color4 && any_eval2)
-	 VB->ColorPtr = eval2_color( out_color, coord, flags, 
+	 VB->ColorPtr = eval2_color( out_color, coord, flags, IM->Start,
 				     &ctx->EvalMap.Map2Color4 );
 	 
       if (VB->ColorPtr != in_color) {
 	 new_flags |= VERT_RGBA;
 	 if (!all_eval)
-	    VB->ColorPtr = copy_4ub( out_color, in_color, flags );
+	    VB->ColorPtr = copy_4ub( out_color, in_color, flags, IM->Start );
       }
 
       VB->Color[0] = VB->Color[1] = VB->ColorPtr;
@@ -2458,17 +2488,17 @@ void gl_eval_vb( struct vertex_buffer *VB )
       GLvector3f  *out_normal = &IM->v.Normal;
 
       if (ctx->Eval.Map1Normal && any_eval1) 
-	 VB->NormalPtr = eval1_norm( out_normal, coord, flags, 
+	 VB->NormalPtr = eval1_norm( out_normal, coord, flags, IM->Start,
 				     &ctx->EvalMap.Map1Normal );
       
       if (ctx->Eval.Map2Normal && any_eval2)
-	 VB->NormalPtr = eval2_norm( out_normal, coord, flags, 
+	 VB->NormalPtr = eval2_norm( out_normal, coord, flags, IM->Start,
 				     &ctx->EvalMap.Map2Normal );
 	 
       if (VB->NormalPtr != in_normal) {
 	 new_flags |= VERT_NORM;
 	 if (!all_eval)
-	    VB->NormalPtr = copy_3f( out_normal, in_normal, flags );
+	    VB->NormalPtr = copy_3f( out_normal, in_normal, flags, IM->Start );
       }
    }
 
@@ -2481,30 +2511,38 @@ void gl_eval_vb( struct vertex_buffer *VB )
 
       if (any_eval1) {
 	 if (ctx->Eval.Map1TextureCoord4) 
-	    tc = eval1_4f( out, coord, flags, 4, &ctx->EvalMap.Map1Texture4);
+	    tc = eval1_4f( out, coord, flags, IM->Start, 
+			   4, &ctx->EvalMap.Map1Texture4);
 	 else if (ctx->Eval.Map1TextureCoord3) 
-	    tc = eval1_4f( out, coord, flags, 3, &ctx->EvalMap.Map1Texture3);
+	    tc = eval1_4f( out, coord, flags, IM->Start, 3,
+			   &ctx->EvalMap.Map1Texture3);
 	 else if (ctx->Eval.Map1TextureCoord2) 
-	    tc = eval1_4f( out, coord, flags, 2, &ctx->EvalMap.Map1Texture2);
+	    tc = eval1_4f( out, coord, flags, IM->Start, 2,
+			   &ctx->EvalMap.Map1Texture2);
 	 else if (ctx->Eval.Map1TextureCoord1) 
-	    tc = eval1_4f( out, coord, flags, 1, &ctx->EvalMap.Map1Texture1);
+	    tc = eval1_4f( out, coord, flags, IM->Start, 1,
+			   &ctx->EvalMap.Map1Texture1);
       }
 
       if (any_eval2) {
 	 if (ctx->Eval.Map2TextureCoord4) 
-	    tc = eval2_4f( out, coord, flags, 4, &ctx->EvalMap.Map2Texture4);
+	    tc = eval2_4f( out, coord, flags, IM->Start,
+			   4, &ctx->EvalMap.Map2Texture4);
 	 else if (ctx->Eval.Map2TextureCoord3) 
-	    tc = eval2_4f( out, coord, flags, 3, &ctx->EvalMap.Map2Texture3);
+	    tc = eval2_4f( out, coord, flags, IM->Start,
+			   3, &ctx->EvalMap.Map2Texture3);
 	 else if (ctx->Eval.Map2TextureCoord2) 
-	    tc = eval2_4f( out, coord, flags, 2, &ctx->EvalMap.Map2Texture2);
+	    tc = eval2_4f( out, coord, flags, IM->Start,
+			   2, &ctx->EvalMap.Map2Texture2);
 	 else if (ctx->Eval.Map2TextureCoord1) 
-	    tc = eval2_4f( out, coord, flags, 1, &ctx->EvalMap.Map2Texture1);
+	    tc = eval2_4f( out, coord, flags, IM->Start,
+			   1, &ctx->EvalMap.Map2Texture1);
       }
 
       if (tc != in) {
 	 new_flags |= VERT_TEX_ANY(0); /* fix for sizes.. */
 	 if (!all_eval)
-	    tc = copy_4f( out, in, flags );
+	    tc = copy_4f( out, in, flags, IM->Start );
       }
 
       VB->TexCoordPtr[0] = tc;
@@ -2518,34 +2556,36 @@ void gl_eval_vb( struct vertex_buffer *VB )
    
       if (any_eval1) {
 	 if (ctx->Eval.Map1Vertex4) 
-	    obj = eval1_4f( out, coord, flags, 4, &ctx->EvalMap.Map1Vertex4);
+	    obj = eval1_4f( out, coord, flags, IM->Start,
+			    4, &ctx->EvalMap.Map1Vertex4);
 	 else 
-	    obj = eval1_4f( out, coord, flags, 3, &ctx->EvalMap.Map1Vertex3);
+	    obj = eval1_4f( out, coord, flags, IM->Start,
+			    3, &ctx->EvalMap.Map1Vertex3);
       }
 
       if (any_eval2) {
 	 if (ctx->Eval.Map2Vertex4) 
 	 {
 	    if (ctx->Eval.AutoNormal && (req & VERT_NORM)) 
-	       obj = eval2_obj_norm( out, VB->NormalPtr, coord, flags, 4,
-				    &ctx->EvalMap.Map2Vertex4 );
+	       obj = eval2_obj_norm( out, VB->NormalPtr, coord, flags, IM->Start,
+				     4, &ctx->EvalMap.Map2Vertex4 );
 	    else
-	       obj = eval2_4f( out, coord, flags, 4, 
-			       &ctx->EvalMap.Map2Vertex4);
+	       obj = eval2_4f( out, coord, flags, IM->Start,
+			       4, &ctx->EvalMap.Map2Vertex4);
 	 }
 	 else if (ctx->Eval.Map2Vertex3) 
 	 {
 	    if (ctx->Eval.AutoNormal && (req & VERT_NORM)) 
-	       obj = eval2_obj_norm( out, VB->NormalPtr, coord, flags, 3,
-				    &ctx->EvalMap.Map2Vertex3 );
+	       obj = eval2_obj_norm( out, VB->NormalPtr, coord, flags, IM->Start,
+				     3, &ctx->EvalMap.Map2Vertex3 );
 	    else
-	       obj = eval2_4f( out, coord, flags, 3, 
-			       &ctx->EvalMap.Map2Vertex3 );
+	       obj = eval2_4f( out, coord, flags, IM->Start,
+			       3, &ctx->EvalMap.Map2Vertex3 );
 	 }
       }
 
       if (obj != in && !all_eval)
-	 obj = copy_4f( out, in, flags );
+	 obj = copy_4f( out, in, flags, IM->Start );
 
       VB->ObjPtr = obj;
    }
@@ -2564,7 +2604,6 @@ void gl_eval_vb( struct vertex_buffer *VB )
       if (all_eval) {
 	 for (i = 0 ; i < count ; i++) 
 	    flags[i] = oldflags[i] | new_flags;
-	 VB->AndFlag |= new_flags; 
       } else {
 	 GLuint andflag = ~0;
 	 for (i = 0 ; i < count ; i++) {
@@ -2572,7 +2611,6 @@ void gl_eval_vb( struct vertex_buffer *VB )
 	       flags[i] = oldflags[i] | new_flags;
 	    andflag &= flags[i];
 	 }
-	 VB->AndFlag = andflag;
       }
    }
 }