Remove libGLU

It's been moved to its own repository, found at
	http://cgit.freedesktop.org/mesa/glu/

Acked-by: Kenneth Graunke <[email protected]>

1 files changed, 0 insertions, 397 deletions

diff --git a/src/glu/sgi/libnurbs/internals/monoTriangulationBackend.cc b/src/glu/sgi/libnurbs/internals/monoTriangulationBackend.cc
deleted file mode 100644
index 2830cc743ca..00000000000
--- a/src/glu/sgi/libnurbs/internals/monoTriangulationBackend.cc
+++ /dev/null
@@ -1,397 +0,0 @@
-/*
-** License Applicability. Except to the extent portions of this file are
-** made subject to an alternative license as permitted in the SGI Free
-** Software License B, Version 1.1 (the "License"), the contents of this
-** file are subject only to the provisions of the License. You may not use
-** this file except in compliance with the License. You may obtain a copy
-** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
-** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
-** 
-** http://oss.sgi.com/projects/FreeB
-** 
-** Note that, as provided in the License, the Software is distributed on an
-** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
-** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
-** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
-** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
-** 
-** Original Code. The Original Code is: OpenGL Sample Implementation,
-** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
-** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
-** Copyright in any portions created by third parties is as indicated
-** elsewhere herein. All Rights Reserved.
-** 
-** Additional Notice Provisions: The application programming interfaces
-** established by SGI in conjunction with the Original Code are The
-** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
-** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
-** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
-** Window System(R) (Version 1.3), released October 19, 1998. This software
-** was created using the OpenGL(R) version 1.2.1 Sample Implementation
-** published by SGI, but has not been independently verified as being
-** compliant with the OpenGL(R) version 1.2.1 Specification.
-**
-*/
-/*
-*/
-
-#include "monoTriangulation.h"
-#include "polyUtil.h"
-#include "backend.h"
-#include "arc.h"
-
-void reflexChain::outputFan(Real v[2], Backend* backend)
-{
-  Int i;
-  /*
-  TrimVertex trimVert;
-  */
-  backend->bgntfan();
-
-  /*
-  trimVert.param[0]=v[0];
-  trimVert.param[1]=v[1];
-  backend->tmeshvert(&trimVert);
-  */
-  backend->tmeshvert(v[0], v[1]);
-
-  if(isIncreasing) {
-    for(i=0; i<index_queue; i++)
-      {
-	/*
-	trimVert.param[0]=queue[i][0];
-	trimVert.param[1]=queue[i][1];
-	backend->tmeshvert(&trimVert);
-	*/
-	backend->tmeshvert(queue[i][0], queue[i][1]);
-      }
-  }
-  else {
-    for(i=index_queue-1; i>=0; i--)
-      {
-	/*
-	trimVert.param[0]=queue[i][0];
-	trimVert.param[1]=queue[i][1];
-	backend->tmeshvert(&trimVert);
-	*/
-	backend->tmeshvert(queue[i][0], queue[i][1]);
-      }
-  }
-  backend->endtfan();
-}
-
-void reflexChain::processNewVertex(Real v[2], Backend* backend)
-{
-  Int i,j,k;
-  Int isReflex;
-  /*TrimVertex trimVert;*/
-  /*if there are at most one vertex in the queue, then simply insert
-   */
-  if(index_queue <=1){
-    insert(v);
-    return;
-  }
-  
-  /*there are at least two vertices in the queue*/
-  j=index_queue-1;
-  
-  for(i=j; i>=1; i--) {
-    if(isIncreasing) {
-      isReflex = (area(queue[i-1], queue[i], v) <= 0.0);
-    }
-    else /*decreasing*/{
-      isReflex = (area(v, queue[i], queue[i-1]) <= 0.0);	  
-    }
-    if(isReflex) {
-      break;
-    }
-  }
-
-  /*
-   *if i<j then vertices: i+1--j are convex
-   * output triangle fan: 
-   *  v, and queue[i], i+1, ..., j
-   */
-  if(i<j) 
-    {
-      backend->bgntfan();
-      /*
-      trimVert.param[0]=v[0];
-      trimVert.param[1]=v[1];
-      backend->tmeshvert(& trimVert);
-      */
-      backend->tmeshvert(v[0], v[1]);
-
-      if(isIncreasing) {
-	for(k=i; k<=j; k++)
-	  {
-	    /*
-	    trimVert.param[0]=queue[k][0];
-	    trimVert.param[1]=queue[k][1];
-	    backend->tmeshvert(& trimVert);
-	    */
-	    backend->tmeshvert(queue[k][0], queue[k][1]);
-	  }
-      }
-      else {
-	for(k=j; k>=i; k--)
-	  {
-	    /*
-	    trimVert.param[0]=queue[k][0];
-	    trimVert.param[1]=queue[k][1];
-	    backend->tmeshvert(& trimVert);
-	    */
-	    backend->tmeshvert(queue[k][0], queue[k][1]);
-	  }
-      }
-      
-      backend->endtfan();
-    }
-
-  /*delete vertices i+1--j from the queue*/
-  index_queue = i+1;
-  /*finally insert v at the end of the queue*/
-  insert(v);
-
-}
-
-
-void monoTriangulationRec(Real* topVertex, Real* botVertex, 
-			  vertexArray* inc_chain, Int inc_current,
-			  vertexArray* dec_chain, Int dec_current,
-			  Backend* backend)
-{
-  assert( inc_chain != NULL && dec_chain != NULL);
-  assert( ! (inc_current>=inc_chain->getNumElements() &&
-	     dec_current>=dec_chain->getNumElements()));
-  Int inc_nVertices;
-  Int dec_nVertices;
-  Real** inc_array ;
-  Real** dec_array ;
-  Int i;
-  assert( ! ( (inc_chain==NULL) && (dec_chain==NULL)));
-
-  if(inc_current>=inc_chain->getNumElements()) /*no more vertices on inc_chain*/
-    {
-
-      dec_array = dec_chain->getArray();
-      dec_nVertices = dec_chain->getNumElements();      
-      reflexChain rChain(20,0);
-      /*put the top vertex into the reflex chain*/
-      rChain.processNewVertex(topVertex, backend);
-      /*process all the vertices on the dec_chain*/
-      for(i=dec_current; i<dec_nVertices; i++){
-	rChain.processNewVertex(dec_array[i], backend);
-      }
-      /*process the bottom vertex*/
-      rChain.processNewVertex(botVertex, backend);
-
-    }
-  else if(dec_current>= dec_chain->getNumElements()) /*no more vertices on dec_chain*/
-    {
-      inc_array = inc_chain->getArray();
-      inc_nVertices= inc_chain->getNumElements();
-      reflexChain rChain(20,1);
-      /*put the top vertex into the reflex chain*/
-      rChain.processNewVertex(topVertex, backend);
-      /*process all the vertices on the inc_chain*/
-      for(i=inc_current; i<inc_nVertices; i++){
-	rChain.processNewVertex(inc_array[i], backend);
-      }
-      /*process the bottom vertex*/
-      rChain.processNewVertex(botVertex, backend);
-    }
-  else /*neither chain is empty*/
-    {
-      inc_array = inc_chain -> getArray();
-      dec_array = dec_chain -> getArray();
-      inc_nVertices= inc_chain->getNumElements();
-      dec_nVertices= dec_chain->getNumElements();
-      /*if top of inc_chain is 'lower' than top of dec_chain, process all the 
-       *vertices on the dec_chain which are higher than top of inc_chain
-       */
-      if(compV2InY(inc_array[inc_current], dec_array[dec_current]) <= 0)
-	{
-
-	  reflexChain rChain(20, 0);
-	  rChain.processNewVertex(topVertex, backend);
-	  for(i=dec_current; i<dec_nVertices; i++)
-	    {
-	      if(compV2InY(inc_array[inc_current], dec_array[i]) <= 0)
-		rChain.processNewVertex(dec_array[i], backend);
-	      else 
-		break;
-	    }
-	  rChain.outputFan(inc_array[inc_current], backend);
-	  monoTriangulationRec(dec_array[i-1], botVertex, 
-			       inc_chain, inc_current,
-			       dec_chain, i,
-			       backend);
-	}
-      else /*compV2InY(inc_array[inc_current], dec_array[dec_current]) > 0*/
-	{
-
-	  reflexChain rChain(20, 1);
-	  rChain.processNewVertex(topVertex, backend);
-	  for(i=inc_current; i<inc_nVertices; i++)
-	    {
-	      if(compV2InY(inc_array[i], dec_array[dec_current]) >0)		
-		rChain.processNewVertex(inc_array[i], backend);	      
-	      else
-		break;
-	    }
-	  rChain.outputFan(dec_array[dec_current], backend);
-	  monoTriangulationRec(inc_array[i-1], botVertex, 
-			       inc_chain, i,
-			       dec_chain, dec_current,
-			       backend);
-	}
-    }/*end case neither is empty*/
-}
-
-
-void monoTriangulationFunBackend(Arc_ptr loop, Int (*compFun)(Real*, Real*), Backend* backend)
-{
-  Int i;
-  /*find the top vertex, bottom vertex, inccreasing chain, and decreasing chain,
-   *then call monoTriangulationRec
-   */
-  Arc_ptr tempV;
-  Arc_ptr topV;
-  Arc_ptr botV;
-  topV = botV = loop;
-  for(tempV = loop->next; tempV != loop; tempV = tempV->next)
-    {
-      if(compFun(topV->tail(), tempV->tail())<0) {
-	topV = tempV;
-      }
-      if(compFun(botV->tail(), tempV->tail())>0) {
-	botV = tempV;
-      }
-    }
-
-  /*creat increase and decrease chains*/
-  vertexArray inc_chain(20); /*this is a dynamic array*/
-  for(i=1; i<=topV->pwlArc->npts-2; i++) { /*the first vertex is the top vertex which doesn't belong to inc_chain*/
-    inc_chain.appendVertex(topV->pwlArc->pts[i].param);
-  }
-  for(tempV = topV->next; tempV != botV; tempV = tempV->next)
-    {
-      for(i=0; i<=tempV->pwlArc->npts-2; i++){
-	inc_chain.appendVertex(tempV->pwlArc->pts[i].param);
-      }
-    }
-  
-  vertexArray dec_chain(20);
-  for(tempV = topV->prev; tempV != botV; tempV = tempV->prev)
-    {
-      for(i=tempV->pwlArc->npts-2; i>=0; i--){
-	dec_chain.appendVertex(tempV->pwlArc->pts[i].param);
-      }
-    }
-  for(i=botV->pwlArc->npts-2; i>=1; i--){ 
-    dec_chain.appendVertex(tempV->pwlArc->pts[i].param);
-  }
-  
-  monoTriangulationRecFunBackend(topV->tail(), botV->tail(), &inc_chain, 0, &dec_chain, 0, compFun, backend);
-
-}  
-
-/*if compFun == compV2InY, top to bottom: V-monotone
- *if compFun == compV2InX, right to left: U-monotone
- */
-void monoTriangulationRecFunBackend(Real* topVertex, Real* botVertex, 
-			  vertexArray* inc_chain, Int inc_current,
-			  vertexArray* dec_chain, Int dec_current,
-			  Int  (*compFun)(Real*, Real*),
-			  Backend* backend)
-{
-  assert( inc_chain != NULL && dec_chain != NULL);
-  assert( ! (inc_current>=inc_chain->getNumElements() &&
-	     dec_current>=dec_chain->getNumElements()));
-  Int inc_nVertices;
-  Int dec_nVertices;
-  Real** inc_array ;
-  Real** dec_array ;
-  Int i;
-  assert( ! ( (inc_chain==NULL) && (dec_chain==NULL)));
-
-  if(inc_current>=inc_chain->getNumElements()) /*no more vertices on inc_chain*/
-    {
-
-      dec_array = dec_chain->getArray();
-      dec_nVertices = dec_chain->getNumElements();      
-      reflexChain rChain(20,0);
-      /*put the top vertex into the reflex chain*/
-      rChain.processNewVertex(topVertex, backend);
-      /*process all the vertices on the dec_chain*/
-      for(i=dec_current; i<dec_nVertices; i++){
-	rChain.processNewVertex(dec_array[i], backend);
-      }
-      /*process the bottom vertex*/
-      rChain.processNewVertex(botVertex, backend);
-
-    }
-  else if(dec_current>= dec_chain->getNumElements()) /*no more vertices on dec_chain*/
-    {
-      inc_array = inc_chain->getArray();
-      inc_nVertices= inc_chain->getNumElements();
-      reflexChain rChain(20,1);
-      /*put the top vertex into the reflex chain*/
-      rChain.processNewVertex(topVertex, backend);
-      /*process all the vertices on the inc_chain*/
-      for(i=inc_current; i<inc_nVertices; i++){
-	rChain.processNewVertex(inc_array[i], backend);
-      }
-      /*process the bottom vertex*/
-      rChain.processNewVertex(botVertex, backend);
-    }
-  else /*neither chain is empty*/
-    {
-      inc_array = inc_chain -> getArray();
-      dec_array = dec_chain -> getArray();
-      inc_nVertices= inc_chain->getNumElements();
-      dec_nVertices= dec_chain->getNumElements();
-      /*if top of inc_chain is 'lower' than top of dec_chain, process all the 
-       *vertices on the dec_chain which are higher than top of inc_chain
-       */
-      if(compFun(inc_array[inc_current], dec_array[dec_current]) <= 0)
-	{
-
-	  reflexChain rChain(20, 0);
-	  rChain.processNewVertex(topVertex, backend);
-	  for(i=dec_current; i<dec_nVertices; i++)
-	    {
-	      if(compFun(inc_array[inc_current], dec_array[i]) <= 0)
-		rChain.processNewVertex(dec_array[i], backend);
-	      else 
-		break;
-	    }
-	  rChain.outputFan(inc_array[inc_current], backend);
-	  monoTriangulationRecFunBackend(dec_array[i-1], botVertex, 
-			       inc_chain, inc_current,
-			       dec_chain, i,
-			       compFun,
-			       backend);
-	}
-      else /*compFun(inc_array[inc_current], dec_array[dec_current]) > 0*/
-	{
-
-	  reflexChain rChain(20, 1);
-	  rChain.processNewVertex(topVertex, backend);
-	  for(i=inc_current; i<inc_nVertices; i++)
-	    {
-	      if(compFun(inc_array[i], dec_array[dec_current]) >0)		
-		rChain.processNewVertex(inc_array[i], backend);	      
-	      else
-		break;
-	    }
-	  rChain.outputFan(dec_array[dec_current], backend);
-	  monoTriangulationRecFunBackend(inc_array[i-1], botVertex, 
-			       inc_chain, i,
-			       dec_chain, dec_current,
-			       compFun,
-			       backend);
-	}
-    }/*end case neither is empty*/
-}