| /* |
| ** 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. |
| */ |
| |
| /* |
| * bin.c++ |
| * |
| * $Date: 2012/03/29 17:22:18 $ $Revision: 1.1.1.1 $ |
| * $Header: /cvs/bao-parsec/pkgs/libs/mesa/src/src/glu/sgi/libnurbs/internals/bin.cc,v 1.1.1.1 2012/03/29 17:22:18 uid42307 Exp $ |
| */ |
| |
| #include "glimports.h" |
| #include "mystdio.h" |
| #include "myassert.h" |
| #include "bin.h" |
| |
| /*---------------------------------------------------------------------------- |
| * Constructor and destructor |
| *---------------------------------------------------------------------------- |
| */ |
| Bin::Bin() |
| { |
| head = NULL; |
| } |
| |
| Bin::~Bin() |
| { |
| assert( head == NULL); |
| } |
| |
| /*---------------------------------------------------------------------------- |
| * remove_this_arc - remove given Arc_ptr from bin |
| *---------------------------------------------------------------------------- |
| */ |
| |
| void |
| Bin::remove_this_arc( Arc_ptr arc ) |
| { |
| Arc_ptr *j; |
| for( j = &(head); (*j != 0) && (*j != arc); j = &((*j)->link) ); |
| |
| if( *j != 0 ) { |
| if( *j == current ) |
| current = (*j)->link; |
| *j = (*j)->link; |
| } |
| } |
| |
| /*---------------------------------------------------------------------------- |
| * numarcs - count number of arcs in bin |
| *---------------------------------------------------------------------------- |
| */ |
| |
| int |
| Bin::numarcs() |
| { |
| long count = 0; |
| for( Arc_ptr jarc = firstarc(); jarc; jarc = nextarc() ) |
| count++; |
| return count; |
| } |
| |
| /*---------------------------------------------------------------------------- |
| * adopt - place an orphaned arcs into their new parents bin |
| *---------------------------------------------------------------------------- |
| */ |
| |
| void |
| Bin::adopt() |
| { |
| markall(); |
| |
| Arc_ptr orphan; |
| while( (orphan = removearc()) != NULL ) { |
| for( Arc_ptr parent = orphan->next; parent != orphan; parent = parent->next ) { |
| if (! parent->ismarked() ) { |
| orphan->link = parent->link; |
| parent->link = orphan; |
| orphan->clearmark(); |
| break; |
| } |
| } |
| } |
| } |
| |
| |
| /*---------------------------------------------------------------------------- |
| * show - print out descriptions of the arcs in the bin |
| *---------------------------------------------------------------------------- |
| */ |
| |
| void |
| Bin::show( char *name ) |
| { |
| #ifndef NDEBUG |
| _glu_dprintf( "%s\n", name ); |
| for( Arc_ptr jarc = firstarc(); jarc; jarc = nextarc() ) |
| jarc->show( ); |
| #endif |
| } |
| |
| |
| |
| /*---------------------------------------------------------------------------- |
| * markall - mark all arcs with an identifying tag |
| *---------------------------------------------------------------------------- |
| */ |
| |
| void |
| Bin::markall() |
| { |
| for( Arc_ptr jarc=firstarc(); jarc; jarc=nextarc() ) |
| jarc->setmark(); |
| } |
| |
| /*---------------------------------------------------------------------------- |
| * listBezier - print out all arcs that are untessellated border arcs |
| *---------------------------------------------------------------------------- |
| */ |
| |
| void |
| Bin::listBezier( void ) |
| { |
| for( Arc_ptr jarc=firstarc(); jarc; jarc=nextarc() ) { |
| if( jarc->isbezier( ) ) { |
| assert( jarc->pwlArc->npts == 2 ); |
| #ifndef NDEBUG |
| TrimVertex *pts = jarc->pwlArc->pts; |
| REAL s1 = pts[0].param[0]; |
| REAL t1 = pts[0].param[1]; |
| REAL s2 = pts[1].param[0]; |
| REAL t2 = pts[1].param[1]; |
| _glu_dprintf( "arc (%g,%g) (%g,%g)\n", s1, t1, s2, t2 ); |
| #endif |
| } |
| } |
| } |
| |