From c3051df8e18882d9c8ffb795622af24aded555b4 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Wed, 29 Mar 2006 18:46:46 +0000
Subject: [PATCH] fixes from John Shell (bug 6339)

---
 src/glu/sgi/libnurbs/interface/glcurveval.cc       |  5 +++--
 src/glu/sgi/libnurbs/internals/arctess.cc          |  2 +-
 src/glu/sgi/libnurbs/internals/bufpool.h           |  5 +++--
 src/glu/sgi/libnurbs/nurbtess/monoTriangulation.cc | 10 ++++++----
 4 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/src/glu/sgi/libnurbs/interface/glcurveval.cc b/src/glu/sgi/libnurbs/interface/glcurveval.cc
index 4713dc46722..32e4704137d 100644
--- a/src/glu/sgi/libnurbs/interface/glcurveval.cc
+++ b/src/glu/sgi/libnurbs/interface/glcurveval.cc
@@ -35,8 +35,8 @@
 /*
  * glcurveval.c++
  *
- * $Date: 2004/05/12 15:29:36 $ $Revision: 1.6 $
- * $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/interface/glcurveval.cc,v 1.6 2004/05/12 15:29:36 brianp Exp $
+ * $Date: 2006/03/29 18:46:46 $ $Revision: 1.7 $
+ * $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/interface/glcurveval.cc,v 1.7 2006/03/29 18:46:46 brianp Exp $
  */
 
 /* Polynomial Evaluator Interface */
@@ -74,6 +74,7 @@ OpenGLCurveEvaluator::OpenGLCurveEvaluator(void)
   em_normal.uprime = -1.0;
   em_color.uprime = -1.0;
   em_texcoord.uprime = -1.0;
+  output_triangles = 0; // don't output triangles by default
 }
 
 OpenGLCurveEvaluator::~OpenGLCurveEvaluator(void) 
diff --git a/src/glu/sgi/libnurbs/internals/arctess.cc b/src/glu/sgi/libnurbs/internals/arctess.cc
index e633626de06..29e7cf4c002 100644
--- a/src/glu/sgi/libnurbs/internals/arctess.cc
+++ b/src/glu/sgi/libnurbs/internals/arctess.cc
@@ -335,7 +335,7 @@ ArcTessellator::tessellateNonlinear( Arc *arc, REAL geo_stepsize, REAL arc_steps
       REAL min_u, min_v, max_u,max_v;
       min_u = max_u = bezierArc->cpts[0];
       min_v = max_v = bezierArc->cpts[1];
-      for(i=1, j=2; i<bezierArc->order; i++, j+= bezierArc->stride)
+      for(i=1, j=bezierArc->stride; i<bezierArc->order; i++, j+= bezierArc->stride)
 	{
 	  if(bezierArc->cpts[j] < min_u)
 	    min_u = bezierArc->cpts[j];
diff --git a/src/glu/sgi/libnurbs/internals/bufpool.h b/src/glu/sgi/libnurbs/internals/bufpool.h
index 90c775e4b75..02e4ff247b6 100644
--- a/src/glu/sgi/libnurbs/internals/bufpool.h
+++ b/src/glu/sgi/libnurbs/internals/bufpool.h
@@ -35,8 +35,8 @@
 /*
  * bufpool.h
  *
- * $Date: 2001/03/22 11:38:36 $ $Revision: 1.2 $
- * $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/bufpool.h,v 1.2 2001/03/22 11:38:36 joukj Exp $
+ * $Date: 2006/03/29 18:46:46 $ $Revision: 1.3 $
+ * $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/bufpool.h,v 1.3 2006/03/29 18:46:46 brianp Exp $
  */
 
 #ifndef __glubufpool_h_
@@ -128,6 +128,7 @@ public:
     inline void * 	operator new( size_t s)
 				{ return ::new char[s]; }
     inline void 	operator delete( void * ) { assert( 0 ); }
+    inline void         operator delete( void *, Pool & ) { assert( 0 ); }
     inline void		deleteMe( Pool & );
 };
 
diff --git a/src/glu/sgi/libnurbs/nurbtess/monoTriangulation.cc b/src/glu/sgi/libnurbs/nurbtess/monoTriangulation.cc
index 3a7d5814b7c..d168374c98a 100644
--- a/src/glu/sgi/libnurbs/nurbtess/monoTriangulation.cc
+++ b/src/glu/sgi/libnurbs/nurbtess/monoTriangulation.cc
@@ -31,10 +31,10 @@
 ** published by SGI, but has not been independently verified as being
 ** compliant with the OpenGL(R) version 1.2.1 Specification.
 **
-** $Date: 2005/10/28 13:09:23 $ $Revision: 1.4 $
+** $Date: 2006/03/29 18:46:46 $ $Revision: 1.5 $
 */
 /*
-** $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/nurbtess/monoTriangulation.cc,v 1.4 2005/10/28 13:09:23 brianp Exp $
+** $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/nurbtess/monoTriangulation.cc,v 1.5 2006/03/29 18:46:46 brianp Exp $
 */
 
 #include <stdlib.h>
@@ -619,8 +619,10 @@ void monoTriangulationFun(directedLine* monoPolygon, Int (*compFun)(Real*, Real*
     dec_chain.appendVertex(tempV->getVertex(i));
   }
   
-  monoTriangulationRecFun(topV->head(), botV->head(), &inc_chain, 0, &dec_chain, 0, compFun, pStream);
-
+  if (!(0 == inc_chain.getNumElements() && 0 == dec_chain.getNumElements())) {
+     monoTriangulationRecFun(topV->head(), botV->head(), &inc_chain, 0,
+                             &dec_chain, 0, compFun, pStream);
+  }
 }  
 
 void monoTriangulation(directedLine* monoPolygon, primStream* pStream)
-- 
2.30.2