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Diffstat (limited to 'mesalib/src/glu/sgi/libnurbs/internals/arcsorter.cc')
| -rw-r--r-- | mesalib/src/glu/sgi/libnurbs/internals/arcsorter.cc | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/arcsorter.cc b/mesalib/src/glu/sgi/libnurbs/internals/arcsorter.cc deleted file mode 100644 index 1f85cb710..000000000 --- a/mesalib/src/glu/sgi/libnurbs/internals/arcsorter.cc +++ /dev/null @@ -1,172 +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. -*/ - -/* - * arcsorter.c++ - * - */ - -#ifndef __gluarcsorter_c_ -#define __gluarcsorter_c_ - -#include "glimports.h" -#include "arc.h" -#include "arcsorter.h" -#include "subdivider.h" - -ArcSorter::ArcSorter(Subdivider &s) : Sorter( sizeof( Arc ** ) ), subdivider(s) -{ -} - -int -ArcSorter::qscmp( char *, char * ) -{ - _glu_dprintf( "ArcSorter::qscmp: pure virtual called\n" ); - return 0; -} - -void -ArcSorter::qsort( Arc **a, int n ) -{ - Sorter::qsort( (void *) a, n ); -} - -void -ArcSorter::qsexc( char *i, char *j )// i<-j, j<-i -{ - Arc **jarc1 = (Arc **) i; - Arc **jarc2 = (Arc **) j; - Arc *tmp = *jarc1; - *jarc1 = *jarc2; - *jarc2 = tmp; -} - -void -ArcSorter::qstexc( char *i, char *j, char *k )// i<-k, k<-j, j<-i -{ - Arc **jarc1 = (Arc **) i; - Arc **jarc2 = (Arc **) j; - Arc **jarc3 = (Arc **) k; - Arc *tmp = *jarc1; - *jarc1 = *jarc3; - *jarc3 = *jarc2; - *jarc2 = tmp; -} - - -ArcSdirSorter::ArcSdirSorter( Subdivider &s ) : ArcSorter(s) -{ -} - -int -ArcSdirSorter::qscmp( char *i, char *j ) -{ - Arc *jarc1 = *(Arc **) i; - Arc *jarc2 = *(Arc **) j; - - int v1 = (jarc1->getitail() ? 0 : (jarc1->pwlArc->npts - 1)); - int v2 = (jarc2->getitail() ? 0 : (jarc2->pwlArc->npts - 1)); - - REAL diff = jarc1->pwlArc->pts[v1].param[1] - - jarc2->pwlArc->pts[v2].param[1]; - - if( diff < 0.0) - return -1; - else if( diff > 0.0) - return 1; - else { - if( v1 == 0 ) { - if( jarc2->tail()[0] < jarc1->tail()[0] ) { - return subdivider.ccwTurn_sl( jarc2, jarc1 ) ? 1 : -1; - } else { - return subdivider.ccwTurn_sr( jarc2, jarc1 ) ? -1 : 1; - } - } else { - if( jarc2->head()[0] < jarc1->head()[0] ) { - return subdivider.ccwTurn_sl( jarc1, jarc2 ) ? -1 : 1; - } else { - return subdivider.ccwTurn_sr( jarc1, jarc2 ) ? 1 : -1; - } - } - } -} - -ArcTdirSorter::ArcTdirSorter( Subdivider &s ) : ArcSorter(s) -{ -} - -/*---------------------------------------------------------------------------- - * ArcTdirSorter::qscmp - - * compare two axis monotone arcs that are incident - * to the line T == compare_value. Determine which of the - * two intersects that line with a LESSER S value. If - * jarc1 does, return 1. If jarc2 does, return -1. - *---------------------------------------------------------------------------- - */ -int -ArcTdirSorter::qscmp( char *i, char *j ) -{ - Arc *jarc1 = *(Arc **) i; - Arc *jarc2 = *(Arc **) j; - - int v1 = (jarc1->getitail() ? 0 : (jarc1->pwlArc->npts - 1)); - int v2 = (jarc2->getitail() ? 0 : (jarc2->pwlArc->npts - 1)); - - REAL diff = jarc1->pwlArc->pts[v1].param[0] - - jarc2->pwlArc->pts[v2].param[0]; - - if( diff < 0.0) - return 1; - else if( diff > 0.0) - return -1; - else { - if( v1 == 0 ) { - if (jarc2->tail()[1] < jarc1->tail()[1]) { - return subdivider.ccwTurn_tl( jarc2, jarc1 ) ? 1 : -1; - } else { - return subdivider.ccwTurn_tr( jarc2, jarc1 ) ? -1 : 1; - } - } else { - if( jarc2->head()[1] < jarc1->head()[1] ) { - return subdivider.ccwTurn_tl( jarc1, jarc2 ) ? -1 : 1; - } else { - return subdivider.ccwTurn_tr( jarc1, jarc2 ) ? 1 : -1; - } - } - } -} - - - -#endif /* __gluarcsorter_c_ */ |