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143 lines
3.8 KiB
143 lines
3.8 KiB
/**************************************************************************
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* *
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* Copyright (C) 1992, Silicon Graphics, Inc. *
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* *
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* These coded instructions, statements, and computer programs contain *
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* unpublished proprietary information of Silicon Graphics, Inc., and *
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* are protected by Federal copyright law. They may not be disclosed *
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* to third parties or copied or duplicated in any form, in whole or *
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* in part, without the prior written consent of Silicon Graphics, Inc. *
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* *
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**************************************************************************/
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/*
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* bin.c++ - $Revision: 1.1 $
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* Derrick Burns - 1991
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*/
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#include "glimport.h"
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#include "mystdio.h"
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#include "myassert.h"
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#include "bin.h"
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/*----------------------------------------------------------------------------
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* Constructor and destructor
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*----------------------------------------------------------------------------
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*/
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Bin::Bin()
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{
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head = NULL;
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}
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Bin::~Bin()
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{
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assert( head == NULL);
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}
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/*----------------------------------------------------------------------------
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* remove_this_arc - remove given Arc_ptr from bin
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*----------------------------------------------------------------------------
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*/
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void
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Bin::remove_this_arc( Arc_ptr arc )
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{
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for( Arc_ptr *j = &(head); (*j != 0) && (*j != arc); j = &((*j)->link) );
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if( *j != 0 ) {
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if( *j == current )
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current = (*j)->link;
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*j = (*j)->link;
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}
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}
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/*----------------------------------------------------------------------------
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* numarcs - count number of arcs in bin
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*----------------------------------------------------------------------------
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*/
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int
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Bin::numarcs()
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{
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long count = 0;
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for( Arc_ptr jarc = firstarc(); jarc; jarc = nextarc() )
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count++;
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return count;
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}
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/*----------------------------------------------------------------------------
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* adopt - place an orphaned arcs into their new parents bin
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*----------------------------------------------------------------------------
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*/
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void
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Bin::adopt()
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{
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markall();
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Arc_ptr orphan;
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while( orphan = removearc() ) {
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for( Arc_ptr parent = orphan->next; parent != orphan; parent = parent->next ) {
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if (! parent->ismarked() ) {
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orphan->link = parent->link;
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parent->link = orphan;
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orphan->clearmark();
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break;
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}
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}
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}
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}
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/*----------------------------------------------------------------------------
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* show - print out descriptions of the arcs in the bin
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*----------------------------------------------------------------------------
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*/
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void
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Bin::show( char *name )
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{
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#ifndef NDEBUG
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dprintf( "%s\n", name );
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for( Arc_ptr jarc = firstarc(); jarc; jarc = nextarc() )
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jarc->show( );
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#endif
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}
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/*----------------------------------------------------------------------------
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* markall - mark all arcs with an identifying tag
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*----------------------------------------------------------------------------
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*/
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void
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Bin::markall()
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{
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for( Arc_ptr jarc=firstarc(); jarc; jarc=nextarc() )
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jarc->setmark();
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}
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/*----------------------------------------------------------------------------
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* listBezier - print out all arcs that are untessellated border arcs
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*----------------------------------------------------------------------------
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*/
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void
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Bin::listBezier( void )
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{
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for( Arc_ptr jarc=firstarc(); jarc; jarc=nextarc() ) {
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if( jarc->isbezier( ) ) {
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assert( jarc->pwlArc->npts == 2 );
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TrimVertex *pts = jarc->pwlArc->pts;
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REAL s1 = pts[0].param[0];
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REAL t1 = pts[0].param[1];
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REAL s2 = pts[1].param[0];
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REAL t2 = pts[1].param[1];
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#ifndef NDEBUG
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dprintf( "arc (%g,%g) (%g,%g)\n", s1, t1, s2, t2 );
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#endif
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}
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}
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}
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