mesa xkeyboard-config git update 3 sep 2012

1 files changed, 0 insertions, 665 deletions

diff --git a/mesalib/src/glu/sgi/libnurbs/internals/intersect.cc b/mesalib/src/glu/sgi/libnurbs/internals/intersect.cc
deleted file mode 100644
index b39ea2121..000000000
--- a/mesalib/src/glu/sgi/libnurbs/internals/intersect.cc
+++ /dev/null
@@ -1,665 +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.
-*/
-
-/*
- * intersect.c++
- *
- */
-
-#include "glimports.h"
-#include "myassert.h"
-#include "mystdio.h"
-#include "subdivider.h"
-#include "arc.h"
-#include "bin.h"
-#include "backend.h"
-#include "trimvertpool.h"
-
-/*#define NOTDEF*/
-
-enum i_result { INTERSECT_VERTEX, INTERSECT_EDGE };
-
-/* local functions */
-#ifndef NDEBUG  // for asserts only
-static int		arc_classify( Arc_ptr, int, REAL );
-#endif
-static enum i_result	pwlarc_intersect( PwlArc *, int, REAL, int, int[3] );
-
-
-void
-Subdivider::partition( Bin & bin, Bin & left, Bin & intersections, 
-	        Bin & right, Bin & unknown, int param, REAL value )
-{
-    Bin	headonleft, headonright, tailonleft, tailonright;
-
-    for( Arc_ptr jarc = bin.removearc(); jarc; jarc = bin.removearc() ) {
-
-	REAL tdiff = jarc->tail()[param] - value;
-	REAL hdiff = jarc->head()[param] - value;
-
-	if( tdiff > 0.0 ) {
-	    if( hdiff > 0.0 ) {
-		right.addarc( jarc  );
-	    } else if( hdiff == 0.0 ) {
-		tailonright.addarc( jarc  );
-	    } else {
-	        Arc_ptr	jtemp;
-		switch( arc_split(jarc, param, value, 0) ) {
-		    case 2:
-			tailonright.addarc( jarc  );
-			headonleft.addarc( jarc->next  );
-			break;
-		    case 31:
-			assert( jarc->head()[param] > value );
-			right.addarc( jarc  );
-			tailonright.addarc( jtemp = jarc->next  );
-			headonleft.addarc( jtemp->next  );
-		        break;
-		    case 32:
-			assert( jarc->head()[param] <= value );
-			tailonright .addarc( jarc  );
-			headonleft.addarc( jtemp = jarc->next  );
-			left.addarc( jtemp->next  );
-			break;
-		    case 4:
-			right.addarc( jarc  );
-			tailonright.addarc( jtemp = jarc->next  );
-			headonleft.addarc( jtemp = jtemp->next  );
-			left.addarc( jtemp->next  );
-		}
-	    }
-	} else if( tdiff == 0.0 ) {
-	    if( hdiff > 0.0 ) {
-		headonright.addarc( jarc  );
-	    } else if( hdiff == 0.0 ) {
-		unknown.addarc( jarc  );
-	    } else {
-		headonleft.addarc( jarc  );
-	    }
-	} else {
-	    if( hdiff > 0.0 ) {
-	        Arc_ptr	jtemp;
-		switch( arc_split(jarc, param, value, 1) ) {
-		    case 2:
-			tailonleft.addarc( jarc  );
-			headonright.addarc( jarc->next  );
-			break;
-		    case 31:
-			assert( jarc->head()[param] < value );
-			left.addarc( jarc  );
-			tailonleft.addarc( jtemp = jarc->next  );
-			headonright.addarc( jtemp->next  );
-			break;
-		    case 32:
-			assert( jarc->head()[param] >= value );
-			tailonleft.addarc( jarc  );
-			headonright.addarc( jtemp = jarc->next  );
-			right.addarc( jtemp->next  );
-			break;
-		    case 4:
-			left.addarc( jarc  );
-			tailonleft.addarc( jtemp = jarc->next  );
-			headonright.addarc( jtemp = jtemp->next  );
-			right.addarc( jtemp->next  );
-		}
-	    } else if( hdiff == 0.0 ) {
-		tailonleft.addarc( jarc  );
-	    } else {
-		left.addarc( jarc  );
-	    }
-	}
-    }
-    if( param == 0 ) {
-	classify_headonleft_s( headonleft, intersections, left, value );
-	classify_tailonleft_s( tailonleft, intersections, left, value );
-	classify_headonright_s( headonright, intersections, right, value );
-	classify_tailonright_s( tailonright, intersections, right, value );
-    } else {
-	classify_headonleft_t( headonleft, intersections, left, value );
-	classify_tailonleft_t( tailonleft, intersections, left, value );
-	classify_headonright_t( headonright, intersections, right, value );
-	classify_tailonright_t( tailonright, intersections, right, value );
-    }
-}
-
-inline static void 
-vert_interp( TrimVertex *n, TrimVertex *l, TrimVertex *r, int p, REAL val )
-{
-    assert( val > l->param[p]);
-    assert( val < r->param[p]);
-
-    n->nuid = l->nuid;
-
-    n->param[p] = val;
-    if( l->param[1-p] != r->param[1-p]  ) {
-	REAL ratio = (val - l->param[p]) / (r->param[p] - l->param[p]);
-	n->param[1-p] = l->param[1-p] + 
-		        ratio * (r->param[1-p] - l->param[1-p]);
-    } else {
-	n->param[1-p] = l->param[1-p];
-    }
-}
-	
-int
-Subdivider::arc_split( Arc_ptr jarc, int param, REAL value, int dir )
-{
-    int		maxvertex = jarc->pwlArc->npts;
-    Arc_ptr	jarc1;
-    TrimVertex* v = jarc->pwlArc->pts;
-
-    int		loc[3];
-    switch( pwlarc_intersect( jarc->pwlArc, param, value, dir, loc ) ) {
-
-		// When the parameter value lands on a vertex, life is sweet
-    case INTERSECT_VERTEX: {
-	    jarc1 = new(arcpool) Arc( jarc, new( pwlarcpool) PwlArc( maxvertex-loc[1], &v[loc[1]] ) );
-	    jarc->pwlArc->npts = loc[1] + 1;
-	    jarc1->next = jarc->next;
-	    jarc1->next->prev = jarc1;
-	    jarc->next = jarc1;
-	    jarc1->prev = jarc;
-	    assert(jarc->check() != 0);
-	    return 2;
-	}
-
-		// When the parameter value intersects an edge, we have to
-		// interpolate a new vertex.  There are special cases
-		// if the new vertex is adjacent to one or both of the
-		// endpoints of the arc.
-    case INTERSECT_EDGE: {
-	    int i, j;
-	    if( dir == 0 ) {
-		i = loc[0];
-		j = loc[2];
-	    } else {
-		i = loc[2];
-		j = loc[0];
-	    }
-
-#ifndef NOTDEF
-	    // The split is between vertices at index j and i, in that
-	    // order (j < i)
-	    
-	    // JEB:  This code is my idea of how to do the split without
-	    // increasing the number of links.  I'm doing this so that
-	    // the is_rect routine can recognize rectangles created by
-	    // subdivision.  In exchange for simplifying the curve list,
-      	    // however, it costs in allocated space and vertex copies.
-	    
-	    TrimVertex *newjunk = trimvertexpool.get(maxvertex -i+1 /*-j*/);
-	    int k;
-	    for(k=0; k<maxvertex-i; k++)
-	      {
-		newjunk[k+1] = v[i+k];
-		newjunk[k+1].nuid = jarc->nuid;
-	      }
-	    
-	    TrimVertex *vcopy = trimvertexpool.get(maxvertex);
-	    for(k=0; k<maxvertex; k++)
-	      {
-		vcopy[k].param[0] = v[k].param[0];
-		vcopy[k].param[1] = v[k].param[1];
-	      }
-	    jarc->pwlArc->pts=vcopy;
-
-	    v[i].nuid = jarc->nuid;
-	    v[j].nuid = jarc->nuid;
-	    vert_interp( &newjunk[0], &v[loc[0]], &v[loc[2]], param, value );
-
-	    if( showingDegenerate() )
-		backend.triangle( &v[i], &newjunk[0], &v[j] );
-
-            vcopy[j+1].param[0]=newjunk[0].param[0];
-            vcopy[j+1].param[1]=newjunk[0].param[1];
-
-
-	    jarc1 = new(arcpool) Arc( jarc,
-			new(pwlarcpool) PwlArc(maxvertex-i+1 , newjunk ) );
-
-	    jarc->pwlArc->npts = j+2;
-	    jarc1->next = jarc->next;
-	    jarc1->next->prev = jarc1;
-	    jarc->next = jarc1;
-	    jarc1->prev = jarc;
-	    assert(jarc->check() != 0);
-
-	    return 2;
-#endif //not NOTDEF
-		// JEB: This is the original version:
-#ifdef NOTDEF
-            Arc_ptr    jarc2, jarc3;
-	    
-	    TrimVertex *newjunk = trimvertexpool.get(3);
-	    v[i].nuid = jarc->nuid;
-	    v[j].nuid = jarc->nuid;
-	    newjunk[0] = v[j];
-	    newjunk[2] = v[i];
-	    vert_interp( &newjunk[1], &v[loc[0]], &v[loc[2]], param, value );
-
-	    if( showingDegenerate() )
-		backend.triangle( &newjunk[2], &newjunk[1], &newjunk[0] );
-
-		// New vertex adjacent to both endpoints
-	    if (maxvertex == 2) {
-		jarc1 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( 2, newjunk+1 ) );
-		jarc->pwlArc->npts = 2;
-		jarc->pwlArc->pts = newjunk;
-		jarc1->next = jarc->next;
-		jarc1->next->prev = jarc1;
-		jarc->next = jarc1;
-		jarc1->prev = jarc;
-		assert(jarc->check() != 0);
-
-		return 2;
-
-		// New vertex adjacent to ending point of arc
-	    } else if (maxvertex - j == 2) {
-		jarc1 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( 2, newjunk ) );
-		jarc2 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( 2, newjunk+1 ) );
-		jarc->pwlArc->npts = maxvertex-1;
-		jarc2->next = jarc->next;
-		jarc2->next->prev = jarc2;
-		jarc->next = jarc1;
-		jarc1->prev = jarc;
-		jarc1->next = jarc2;
-		jarc2->prev = jarc1;
-		assert(jarc->check() != 0);
-		return 31;
-
-		// New vertex adjacent to starting point of arc
-	    } else if (i == 1) {
-		jarc1 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( 2, newjunk+1 ) );
-		jarc2 = new(arcpool) Arc( jarc, 
-			new(pwlarcpool) PwlArc( maxvertex-1, &jarc->pwlArc->pts[1] ) );
-		jarc->pwlArc->npts = 2;
-		jarc->pwlArc->pts = newjunk;
-		jarc2->next = jarc->next;
-		jarc2->next->prev = jarc2;
-		jarc->next = jarc1;
-		jarc1->prev = jarc;
-		jarc1->next = jarc2;
-		jarc2->prev = jarc1;
-		assert(jarc->check() != 0);
-		return 32;
-
-		// It's somewhere in the middle
-	    } else {
-		jarc1 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( 2, newjunk ) );
-		jarc2 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( 2, newjunk+1 ) );
-		jarc3 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( maxvertex-i, v+i ) );
-		jarc->pwlArc->npts = j + 1;
-		jarc3->next = jarc->next;
-		jarc3->next->prev = jarc3;
-		jarc->next = jarc1;
-		jarc1->prev = jarc;
-		jarc1->next = jarc2;
-		jarc2->prev = jarc1;
-		jarc2->next = jarc3;
-		jarc3->prev = jarc2;
-		assert(jarc->check() != 0);
-		return 4;
-	    }
-#endif // NOTDEF
-	}
-	default:
-	return -1; //picked -1 since it's not used
-    }
-}
-
-/*----------------------------------------------------------------------------
- * pwlarc_intersect -  find intersection of pwlArc and isoparametric line
- *----------------------------------------------------------------------------
- */
-
-static enum i_result
-pwlarc_intersect(
-    PwlArc *pwlArc,
-    int param,
-    REAL value,
-    int dir,
-    int loc[3] )
-{
-    assert( pwlArc->npts > 0 );
-
-    if( dir ) {
-	TrimVertex *v = pwlArc->pts;
-	int imin = 0; 
-	int imax = pwlArc->npts - 1;
-	assert( value > v[imin].param[param] );
-	assert( value < v[imax].param[param] );	
-	while( (imax - imin) > 1 ) {
-	    int imid = (imax + imin)/2;
-	    if( v[imid].param[param] > value )
-		imax = imid;
-	    else if( v[imid].param[param] < value )
-		imin = imid;
-	    else {
-		loc[1] = imid;
-		return INTERSECT_VERTEX;
-	    }
-	}
-	loc[0] = imin;
-	loc[2] = imax;
-	return INTERSECT_EDGE;
-    } else {
-	TrimVertex *v = pwlArc->pts;
-	int imax = 0; 
-	int imin = pwlArc->npts - 1;
-	assert( value > v[imin].param[param] );
-	assert( value < v[imax].param[param] );	
-	while( (imin - imax) > 1 ) {
-	    int imid = (imax + imin)/2;
-	    if( v[imid].param[param] > value )
-		imax = imid;
-	    else if( v[imid].param[param] < value )
-		imin = imid;
-	    else {
-		loc[1] = imid;
-		return INTERSECT_VERTEX;
-	    }
-	}
-	loc[0] = imin;
-	loc[2] = imax;
-	return INTERSECT_EDGE;
-    }
-}
-
-/*----------------------------------------------------------------------------
- * arc_classify - determine which side of a line a jarc lies 
- *----------------------------------------------------------------------------
- */
-
-#ifndef NDEBUG  // for asserts only
-static int
-arc_classify( Arc_ptr jarc, int param, REAL value )
-{
-    REAL tdiff, hdiff;
-    if( param == 0 ) {
-	tdiff = jarc->tail()[0] - value;
-	hdiff = jarc->head()[0] - value;
-    } else {
-	tdiff = jarc->tail()[1] - value;
-	hdiff = jarc->head()[1] - value;
-    }
-
-    if( tdiff > 0.0 ) {
-	if( hdiff > 0.0 ) {
-	    return 0x11;
-	} else if( hdiff == 0.0 ) {
-	    return 0x12;
-	} else {
-	    return 0x10;
-	}
-    } else if( tdiff == 0.0 ) {
-	if( hdiff > 0.0 ) {
-	    return 0x21;
-	} else if( hdiff == 0.0 ) {
-	    return 0x22;
-	} else {
-	    return 0x20;
-	}
-    } else {
-	if( hdiff > 0.0 ) {
-	    return 0x01;
-	} else if( hdiff == 0.0 ) {
-	    return 0x02;
-	} else {
-	    return 0;
-	}
-    }
-}
-#endif
-
-void
-Subdivider::classify_tailonleft_s( Bin& bin, Bin& in, Bin& out, REAL val )
-{
-    /* tail at left, head on line */
-    Arc_ptr j;
-
-    while( (j = bin.removearc()) != NULL ) {
-	assert( arc_classify( j, 0, val ) == 0x02 );
-	j->clearitail();
-
-	REAL diff = j->next->head()[0] - val;
-	if( diff > 0.0 ) {
-	    in.addarc( j );
-	} else if( diff < 0.0 ) {
-	    if( ccwTurn_sl( j, j->next ) )
-		out.addarc( j );
-	    else
-		in.addarc( j );
-	} else {
-	    if( j->next->tail()[1] > j->next->head()[1] ) 
-		in.addarc(j);
-	    else
-		out.addarc(j);
-	}
-    }
-}
-
-void
-Subdivider::classify_tailonleft_t( Bin& bin, Bin& in, Bin& out, REAL val )
-{
-    /* tail at left, head on line */
-    Arc_ptr j;
-
-    while( (j = bin.removearc()) != NULL ) {
-	assert( arc_classify( j, 1, val ) == 0x02 );
-	j->clearitail();
-
-        REAL diff = j->next->head()[1] - val;
-	if( diff > 0.0 ) {
-	    in.addarc( j );
-	} else if( diff < 0.0 ) {
-	    if( ccwTurn_tl( j, j->next ) )
-		out.addarc( j );
-	    else
-		in.addarc( j );
-	} else {
-	    if (j->next->tail()[0] > j->next->head()[0] )
-		out.addarc( j );
-	    else
-		in.addarc( j );
-	}
-    }
-}
-
-void
-Subdivider::classify_headonleft_s( Bin& bin, Bin& in, Bin& out, REAL val )
-{
-    /* tail on line, head at left */
-    Arc_ptr j;
-
-    while( (j = bin.removearc()) != NULL ) {
-	assert( arc_classify( j, 0, val ) == 0x20 );
-
-	j->setitail();
-
-	REAL diff = j->prev->tail()[0] - val;
-	if( diff > 0.0 ) {
-	    out.addarc( j );
-	} else if( diff < 0.0 ) {
-	    if( ccwTurn_sl( j->prev, j ) )
-		out.addarc( j );
-	    else
-		in.addarc( j );
-	} else {
-	    if( j->prev->tail()[1] > j->prev->head()[1] )
-		in.addarc( j );
-	    else
-		out.addarc( j );
-	}
-    }
-}
-
-void
-Subdivider::classify_headonleft_t( Bin& bin, Bin& in, Bin& out, REAL val )
-{
-    /* tail on line, head at left */
-    Arc_ptr j;
-
-    while( (j = bin.removearc()) != NULL ) {
-	assert( arc_classify( j, 1, val ) == 0x20 );
-	j->setitail();
-
-	REAL diff = j->prev->tail()[1] - val;
-	if( diff > 0.0 ) {
-	    out.addarc( j );
-	} else if( diff < 0.0 ) {
-	    if( ccwTurn_tl( j->prev, j ) )
-		out.addarc( j );
-	    else
-		in.addarc( j );
-	} else {
-	    if( j->prev->tail()[0] > j->prev->head()[0] )
-		out.addarc( j );
-	    else
-		in.addarc( j );
-	}
-    }
-}
-
-
-void
-Subdivider::classify_tailonright_s( Bin& bin, Bin& in, Bin& out, REAL val )
-{
-    /* tail at right, head on line */
-    Arc_ptr j;
-
-    while( (j = bin.removearc()) != NULL ) {
-	assert( arc_classify( j, 0, val ) == 0x12);
-	
-	j->clearitail();
-
-        REAL diff = j->next->head()[0] - val;
-	if( diff > 0.0 ) {
-	    if( ccwTurn_sr( j, j->next ) )
-		out.addarc( j );
-	    else
-		in.addarc( j );
-	} else if( diff < 0.0 ) {
-	    in.addarc( j );
-	} else {
-	    if( j->next->tail()[1] > j->next->head()[1] ) 
-		out.addarc( j );
-	    else
-		in.addarc( j );
-	}
-    }
-}
-
-void
-Subdivider::classify_tailonright_t( Bin& bin, Bin& in, Bin& out, REAL val )
-{
-    /* tail at right, head on line */
-    Arc_ptr j;
-
-    while( (j = bin.removearc()) != NULL ) {
-	assert( arc_classify( j, 1, val ) == 0x12);
-	
-	j->clearitail();
-
-	REAL diff =  j->next->head()[1] - val;
-	if( diff > 0.0 ) {
-	    if( ccwTurn_tr( j, j->next ) )
-		out.addarc( j );
-	    else
-		in.addarc( j );
-	} else if( diff < 0.0 ) { 
-	    in.addarc( j );
-	} else {
-	    if( j->next->tail()[0] > j->next->head()[0] ) 
-		in.addarc( j );
-	    else
-		out.addarc( j );
-	}
-    }
-}
-
-void
-Subdivider::classify_headonright_s( Bin& bin, Bin& in, Bin& out, REAL val )
-{
-    /* tail on line, head at right */
-    Arc_ptr j;
-
-    while( (j = bin.removearc()) != NULL ) {
-	assert( arc_classify( j, 0, val ) == 0x21 );
-    
-	j->setitail();
-
-        REAL diff = j->prev->tail()[0] - val;
-	if( diff > 0.0 ) { 
-	    if( ccwTurn_sr( j->prev, j ) )
-		out.addarc( j );
-	    else
-		in.addarc( j );
-	} else if( diff < 0.0 ) {
-	    out.addarc( j );
-	} else {
-	    if( j->prev->tail()[1] > j->prev->head()[1] )
-		out.addarc( j );
-	    else
-		in.addarc( j );
-	}
-    }
-}
-
-void
-Subdivider::classify_headonright_t( Bin& bin, Bin& in, Bin& out, REAL val )
-{
-    /* tail on line, head at right */
-    Arc_ptr j;
-
-    while( (j = bin.removearc()) != NULL ) {
-	assert( arc_classify( j, 1, val ) == 0x21 );
-    
-	j->setitail();
-
-        REAL diff = j->prev->tail()[1] - val;
-	if( diff > 0.0 ) { 
-	    if( ccwTurn_tr( j->prev, j ) )
-		out.addarc( j );
-	    else
-		in.addarc( j );
-	} else if( diff < 0.0 ) {
-	    out.addarc( j );
-	} else {
-	    if( j->prev->tail()[0] > j->prev->head()[0] )
-		in.addarc( j );
-	    else
-		out.addarc( j );
-	}
-    }
-}
-