diff options
Diffstat (limited to 'src/glu/sgi/libnurbs/internals')
97 files changed, 0 insertions, 18531 deletions
diff --git a/src/glu/sgi/libnurbs/internals/arc.cc b/src/glu/sgi/libnurbs/internals/arc.cc deleted file mode 100644 index cd4c4048a0a..00000000000 --- a/src/glu/sgi/libnurbs/internals/arc.cc +++ /dev/null @@ -1,346 +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. -*/ - -/* - * arc.c++ - * - */ - -#include <stdio.h> -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "arc.h" -#include "bin.h" -#include "pwlarc.h" -#include "simplemath.h" - -/* local preprocessor definitions */ -#define ZERO 0.00001/*0.000001*/ - -const int Arc::bezier_tag = (1<<13); -const int Arc::arc_tag = (1<<3); -const int Arc::tail_tag = (1<<6); - -/*-------------------------------------------------------------------------- - * makeSide - attach a pwl arc to an arc and mark it as a border arc - *-------------------------------------------------------------------------- - */ - -void -Arc::makeSide( PwlArc *pwl, arc_side side ) -{ - assert( pwl != 0); - assert( pwlArc == 0 ); - assert( pwl->npts > 0 ); - assert( pwl->pts != 0); - pwlArc = pwl; - clearbezier(); - setside( side ); -} - - -/*-------------------------------------------------------------------------- - * numpts - count number of points on arc loop - *-------------------------------------------------------------------------- - */ - -int -Arc::numpts( void ) -{ - Arc_ptr jarc = this; - int npts = 0; - do { - npts += jarc->pwlArc->npts; - jarc = jarc->next; - } while( jarc != this ); - return npts; -} - -/*-------------------------------------------------------------------------- - * markverts - mark each point with id of arc - *-------------------------------------------------------------------------- - */ - -void -Arc::markverts( void ) -{ - Arc_ptr jarc = this; - - do { - TrimVertex *p = jarc->pwlArc->pts; - for( int i=0; i<jarc->pwlArc->npts; i++ ) - p[i].nuid = jarc->nuid; - jarc = jarc->next; - } while( jarc != this ); -} - -/*-------------------------------------------------------------------------- - * getextrema - find axis extrema on arc loop - *-------------------------------------------------------------------------- - */ - -void -Arc::getextrema( Arc_ptr extrema[4] ) -{ - REAL leftpt, botpt, rightpt, toppt; - - extrema[0] = extrema[1] = extrema[2] = extrema[3] = this; - - leftpt = rightpt = this->tail()[0]; - botpt = toppt = this->tail()[1]; - - for( Arc_ptr jarc = this->next; jarc != this; jarc = jarc->next ) { - if ( jarc->tail()[0] < leftpt || - (jarc->tail()[0] <= leftpt && jarc->rhead()[0]<=leftpt)) { - leftpt = jarc->pwlArc->pts->param[0]; - extrema[1] = jarc; - } - if ( jarc->tail()[0] > rightpt || - (jarc->tail()[0] >= rightpt && jarc->rhead()[0] >= rightpt)) { - rightpt = jarc->pwlArc->pts->param[0]; - extrema[3] = jarc; - } - if ( jarc->tail()[1] < botpt || - (jarc->tail()[1] <= botpt && jarc->rhead()[1] <= botpt )) { - botpt = jarc->pwlArc->pts->param[1]; - extrema[2] = jarc; - } - if ( jarc->tail()[1] > toppt || - (jarc->tail()[1] >= toppt && jarc->rhead()[1] >= toppt)) { - toppt = jarc->pwlArc->pts->param[1]; - extrema[0] = jarc; - } - } -} - - -/*------------------------------------------------------------------------- - * show - print to the stdout the vertices of a pwl arc - *------------------------------------------------------------------------- - */ - -void -Arc::show() -{ -#ifndef NDEBUG - _glu_dprintf( "\tPWLARC NP: %d FL: 1\n", pwlArc->npts ); - for( int i = 0; i < pwlArc->npts; i++ ) { - _glu_dprintf( "\t\tVERTEX %f %f\n", pwlArc->pts[i].param[0], - pwlArc->pts[i].param[1] ); - } -#endif -} - -/*------------------------------------------------------------------------- - * print - print out the vertices of all pwl arcs on a loop - *------------------------------------------------------------------------- - */ - -void -Arc::print( void ) -{ - Arc_ptr jarc = this; - -#ifndef NDEBUG - _glu_dprintf( "BGNTRIM\n" ); -#endif - do { - jarc->show( ); - jarc = jarc->next; - } while (jarc != this); -#ifndef NDEBUG - _glu_dprintf("ENDTRIM\n" ); -#endif -} - -/*------------------------------------------------------------------------- - * isDisconnected - check if tail of arc and head of prev meet - *------------------------------------------------------------------------- - */ - -int -Arc::isDisconnected( void ) -{ - if( pwlArc == 0 ) return 0; - if( prev->pwlArc == 0 ) return 0; - - REAL *p0 = tail(); - REAL *p1 = prev->rhead(); - - if( ((p0[0] - p1[0]) > ZERO) || ((p1[0] - p0[0]) > ZERO) || - ((p0[1] - p1[1]) > ZERO) || ((p1[1] - p0[1]) > ZERO) ) { -#ifndef NDEBUG - _glu_dprintf( "x coord = %f %f %f\n", p0[0], p1[0], p0[0] - p1[0] ); - _glu_dprintf( "y coord = %f %f %f\n", p0[1], p1[1], p0[1] - p1[1] ); -#endif - return 1; - } else { - /* average two points together */ - p0[0] = p1[0] = (p1[0] + p0[0]) * 0.5; - p0[1] = p1[1] = (p1[1] + p0[1]) * 0.5; - return 0; - } -} - -/*------------------------------------------------------------------------- - * neq_vert - assert that two 2D vertices are not equal - *------------------------------------------------------------------------- - */ - -inline static int -neq_vert( REAL *v1, REAL *v2 ) -{ - return ((v1[0] != v2[0]) || (v1[1] != v2[1] )) ? 1 : 0; -} - -/*------------------------------------------------------------------------- - * check - verify consistency of a loop, including - * 1) if pwl, no two consecutive vertices are identical - * 2) the circular link pointers are valid - * 3) the geometric info at the head and tail are consistent - *------------------------------------------------------------------------- - */ - -int -Arc::check( void ) -{ - if( this == 0 ) return 1; - Arc_ptr jarc = this; - do { - assert( (jarc->pwlArc != 0) || (jarc->bezierArc != 0) ); - - if (jarc->prev == 0 || jarc->next == 0) { -#ifndef NDEBUG - _glu_dprintf( "checkjarc:null next/prev pointer\n"); - jarc->print( ); -#endif - return 0; - } - - if (jarc->next->prev != jarc) { -#ifndef NDEBUG - _glu_dprintf( "checkjarc: pointer linkage screwed up\n"); - jarc->print( ); -#endif - return 0; - } - - if( jarc->pwlArc ) { -#ifndef NDEBUG - assert( jarc->pwlArc->npts >= 1 ); - assert( jarc->pwlArc->npts < 100000 ); -/* - for( int i=0; i < jarc->pwlArc->npts-1; i++ ) - assert( neq_vert( jarc->pwlArc->pts[i].param, - jarc->pwlArc->pts[i+1].param) ); -*/ -#endif - if( jarc->prev->pwlArc ) { - if( jarc->tail()[1] != jarc->prev->rhead()[1] ) { -#ifndef NDEBUG - _glu_dprintf( "checkjarc: geometric linkage screwed up 1\n"); - jarc->prev->show(); - jarc->show(); -#endif - return 0; - } - if( jarc->tail()[0] != jarc->prev->rhead()[0] ) { - -#ifndef NDEBUG - _glu_dprintf( "checkjarc: geometric linkage screwed up 2\n"); - jarc->prev->show(); - jarc->show(); -#endif - return 0; - } - } - if( jarc->next->pwlArc ) { - if( jarc->next->tail()[0] != jarc->rhead()[0] ) { -#ifndef NDEBUG - _glu_dprintf( "checkjarc: geometric linkage screwed up 3\n"); - jarc->show(); - jarc->next->show(); -#endif - return 0; - } - if( jarc->next->tail()[1] != jarc->rhead()[1] ) { -#ifndef NDEBUG - _glu_dprintf( "checkjarc: geometric linkage screwed up 4\n"); - jarc->show(); - jarc->next->show(); -#endif - return 0; - } - } - if( jarc->isbezier() ) { - assert( jarc->pwlArc->npts == 2 ); - assert( (jarc->pwlArc->pts[0].param[0] == \ - jarc->pwlArc->pts[1].param[0]) ||\ - (jarc->pwlArc->pts[0].param[1] == \ - jarc->pwlArc->pts[1].param[1]) ); - } - } - jarc = jarc->next; - } while (jarc != this); - return 1; -} - - -#define TOL 0.00001 - -inline long tooclose( REAL x, REAL y ) -{ - return (glu_abs(x-y) < TOL) ? 1 : 0; -} - - -/*-------------------------------------------------------------------------- - * append - append a jordan arc to a circularly linked list - *-------------------------------------------------------------------------- - */ - -Arc_ptr -Arc::append( Arc_ptr jarc ) -{ - if( jarc != 0 ) { - next = jarc->next; - prev = jarc; - next->prev = prev->next = this; - } else { - next = prev = this; - } - return this; -} - diff --git a/src/glu/sgi/libnurbs/internals/arc.h b/src/glu/sgi/libnurbs/internals/arc.h deleted file mode 100644 index ca397f3b1fd..00000000000 --- a/src/glu/sgi/libnurbs/internals/arc.h +++ /dev/null @@ -1,139 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * arc.h - * - */ - -#ifndef __gluarc_h_ -#define __gluarc_h_ - -#include "myassert.h" -#include "bufpool.h" -#include "mystdio.h" -#include "types.h" -#include "pwlarc.h" -#include "trimvertex.h" - -class Bin; -class Arc; -struct BezierArc; - -typedef class Arc *Arc_ptr; - -enum arc_side { arc_none = 0, arc_right, arc_top, arc_left, arc_bottom }; - - -class Arc: public PooledObj { /* an arc, in two list, the trim list and bin */ - -public: - static const int bezier_tag; - static const int arc_tag; - static const int tail_tag; - Arc_ptr prev; /* trim list pointer */ - Arc_ptr next; /* trim list pointer */ - Arc_ptr link; /* bin pointers */ - BezierArc * bezierArc; /* associated bezier arc */ - PwlArc * pwlArc; /* associated pwl arc */ - long type; /* curve type */ - long nuid; - - inline Arc( Arc *, PwlArc * ); - inline Arc( arc_side, long ); - - Arc_ptr append( Arc_ptr ); - int check( void ); - int isMonotone( void ); - int isDisconnected( void ); - int numpts( void ); - void markverts( void ); - void getextrema( Arc_ptr[4] ); - void print( void ); - void show( void ); - void makeSide( PwlArc *, arc_side ); - inline int isTessellated() { return pwlArc ? 1 : 0; } - inline long isbezier() { return type & bezier_tag; } - inline void setbezier() { type |= bezier_tag; } - inline void clearbezier() { type &= ~bezier_tag; } - inline long npts() { return pwlArc->npts; } - inline TrimVertex * pts() { return pwlArc->pts; } - inline REAL * tail() { return pwlArc->pts[0].param; } - inline REAL * head() { return next->pwlArc->pts[0].param; } - inline REAL * rhead() { return pwlArc->pts[pwlArc->npts-1].param; } - inline long ismarked() { return type & arc_tag; } - inline void setmark() { type |= arc_tag; } - inline void clearmark() { type &= (~arc_tag); } - inline void clearside() { type &= ~(0x7 << 8); } - inline void setside( arc_side s ) { clearside(); type |= (((long)s)<<8); } - inline arc_side getside() { return (arc_side) ((type>>8) & 0x7); } - inline int getitail() { return type & tail_tag; } - inline void setitail() { type |= tail_tag; } - inline void clearitail() { type &= (~tail_tag); } -}; - -/*-------------------------------------------------------------------------- - * Arc - initialize a new Arc with the same type and uid of - * a given Arc and a given pwl arc - *-------------------------------------------------------------------------- - */ - -inline -Arc::Arc( Arc *j, PwlArc *p ) -{ - prev = NULL; - next = NULL; - link = NULL; - bezierArc = NULL; - pwlArc = p; - type = j->type; - nuid = j->nuid; -} - -/*-------------------------------------------------------------------------- - * Arc - initialize a new Arc with the same type and uid of - * a given Arc and a given pwl arc - *-------------------------------------------------------------------------- - */ - -inline -Arc::Arc( arc_side side, long _nuid ) -{ - prev = NULL; - next = NULL; - link = NULL; - bezierArc = NULL; - pwlArc = NULL; - type = 0; - setside( side ); - nuid = _nuid; -} - -#endif /* __gluarc_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/arcsorter.cc b/src/glu/sgi/libnurbs/internals/arcsorter.cc deleted file mode 100644 index 1f85cb7108a..00000000000 --- a/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_ */ diff --git a/src/glu/sgi/libnurbs/internals/arcsorter.h b/src/glu/sgi/libnurbs/internals/arcsorter.h deleted file mode 100644 index a55df926772..00000000000 --- a/src/glu/sgi/libnurbs/internals/arcsorter.h +++ /dev/null @@ -1,72 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * arcsorter.h - * - */ - -#ifndef __gluarcsorter_h_ -#define __gluarcsorter_h_ - -#include "sorter.h" - -class Arc; -class Subdivider; - -class ArcSorter : private Sorter { -public: - ArcSorter(Subdivider &); - void qsort( Arc **a, int n ); -protected: - virtual int qscmp( char *, char * ); - Subdivider& subdivider; -private: - void qsexc( char *i, char *j ); // i<-j, j<-i - void qstexc( char *i, char *j, char *k ); // i<-k, k<-j, j<-i -}; - - -class ArcSdirSorter : public ArcSorter { -public: - ArcSdirSorter( Subdivider & ); -private: - int qscmp( char *, char * ); -}; - - -class ArcTdirSorter : public ArcSorter { -public: - ArcTdirSorter( Subdivider & ); -private: - int qscmp( char *, char * ); -}; - -#endif /* __gluarcsorter_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/arctess.cc b/src/glu/sgi/libnurbs/internals/arctess.cc deleted file mode 100644 index 29e7cf4c002..00000000000 --- a/src/glu/sgi/libnurbs/internals/arctess.cc +++ /dev/null @@ -1,611 +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. -*/ - -/* - * arctessellator.c++ - * - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "arctess.h" -#include "bufpool.h" -#include "simplemath.h" -#include "bezierarc.h" -#include "trimvertex.h" -#include "trimvertpool.h" - -#define NOELIMINATION - -#define steps_function(large, small, rate) (max(1, 1+ (int) ((large-small)/rate))); - -/*----------------------------------------------------------------------------- - * ArcTessellator - construct an ArcTessellator - *----------------------------------------------------------------------------- - */ - -ArcTessellator::ArcTessellator( TrimVertexPool& t, Pool& p ) - : pwlarcpool(p), trimvertexpool(t) -{ -} - -/*----------------------------------------------------------------------------- - * ~ArcTessellator - destroy an ArcTessellator - *----------------------------------------------------------------------------- - */ - -ArcTessellator::~ArcTessellator( void ) -{ -} - -/*----------------------------------------------------------------------------- - * bezier - construct a bezier arc and attach it to an Arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::bezier( Arc *arc, REAL s1, REAL s2, REAL t1, REAL t2 ) -{ - assert( arc != 0 ); - assert( ! arc->isTessellated() ); - -#ifndef NDEBUG - switch( arc->getside() ) { - case arc_left: - assert( s1 == s2 ); - assert( t2 < t1 ); - break; - case arc_right: - assert( s1 == s2 ); - assert( t1 < t2 ); - break; - case arc_top: - assert( t1 == t2 ); - assert( s2 < s1 ); - break; - case arc_bottom: - assert( t1 == t2 ); - assert( s1 < s2 ); - break; - case arc_none: - (void) abort(); - break; - } -#endif - - TrimVertex *p = trimvertexpool.get(2); - arc->pwlArc = new(pwlarcpool) PwlArc( 2, p ); - p[0].param[0] = s1; - p[0].param[1] = t1; - p[1].param[0] = s2; - p[1].param[1] = t2; - assert( (s1 == s2) || (t1 == t2) ); - arc->setbezier(); -} - - -/*----------------------------------------------------------------------------- - * pwl_left - construct a left boundary pwl arc and attach it to an arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::pwl_left( Arc *arc, REAL s, REAL t1, REAL t2, REAL rate ) -{ - assert( t2 < t1 ); - -/* if(rate <= 0.06) rate = 0.06;*/ -/* int nsteps = 1 + (int) ((t1 - t2) / rate ); */ - int nsteps = steps_function(t1, t2, rate); - - - REAL stepsize = (t1 - t2) / (REAL) nsteps; - - TrimVertex *newvert = trimvertexpool.get( nsteps+1 ); - int i; - for( i = nsteps; i > 0; i-- ) { - newvert[i].param[0] = s; - newvert[i].param[1] = t2; - t2 += stepsize; - } - newvert[i].param[0] = s; - newvert[i].param[1] = t1; - - arc->makeSide( new(pwlarcpool) PwlArc( nsteps+1, newvert ), arc_left ); -} - -/*----------------------------------------------------------------------------- - * pwl_right - construct a right boundary pwl arc and attach it to an arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::pwl_right( Arc *arc, REAL s, REAL t1, REAL t2, REAL rate ) -{ - assert( t1 < t2 ); - -/* if(rate <= 0.06) rate = 0.06;*/ - -/* int nsteps = 1 + (int) ((t2 - t1) / rate ); */ - int nsteps = steps_function(t2,t1,rate); - REAL stepsize = (t2 - t1) / (REAL) nsteps; - - TrimVertex *newvert = trimvertexpool.get( nsteps+1 ); - int i; - for( i = 0; i < nsteps; i++ ) { - newvert[i].param[0] = s; - newvert[i].param[1] = t1; - t1 += stepsize; - } - newvert[i].param[0] = s; - newvert[i].param[1] = t2; - - arc->makeSide( new(pwlarcpool) PwlArc( nsteps+1, newvert ), arc_right ); -} - - -/*----------------------------------------------------------------------------- - * pwl_top - construct a top boundary pwl arc and attach it to an arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::pwl_top( Arc *arc, REAL t, REAL s1, REAL s2, REAL rate ) -{ - assert( s2 < s1 ); - -/* if(rate <= 0.06) rate = 0.06;*/ - -/* int nsteps = 1 + (int) ((s1 - s2) / rate ); */ - int nsteps = steps_function(s1,s2,rate); - REAL stepsize = (s1 - s2) / (REAL) nsteps; - - TrimVertex *newvert = trimvertexpool.get( nsteps+1 ); - int i; - for( i = nsteps; i > 0; i-- ) { - newvert[i].param[0] = s2; - newvert[i].param[1] = t; - s2 += stepsize; - } - newvert[i].param[0] = s1; - newvert[i].param[1] = t; - - arc->makeSide( new(pwlarcpool) PwlArc( nsteps+1, newvert ), arc_top ); -} - -/*----------------------------------------------------------------------------- - * pwl_bottom - construct a bottom boundary pwl arc and attach it to an arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::pwl_bottom( Arc *arc, REAL t, REAL s1, REAL s2, REAL rate ) -{ - assert( s1 < s2 ); - -/* if(rate <= 0.06) rate = 0.06;*/ - -/* int nsteps = 1 + (int) ((s2 - s1) / rate ); */ - int nsteps = steps_function(s2,s1,rate); - REAL stepsize = (s2 - s1) / (REAL) nsteps; - - TrimVertex *newvert = trimvertexpool.get( nsteps+1 ); - int i; - for( i = 0; i < nsteps; i++ ) { - newvert[i].param[0] = s1; - newvert[i].param[1] = t; - s1 += stepsize; - } - newvert[i].param[0] = s2; - newvert[i].param[1] = t; - - arc->makeSide( new(pwlarcpool) PwlArc( nsteps+1, newvert ), arc_bottom ); -} - -/*----------------------------------------------------------------------------- - * pwl - construct a pwl arc and attach it to an arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::pwl( Arc *arc, REAL s1, REAL s2, REAL t1, REAL t2, REAL rate ) -{ - -/* if(rate <= 0.06) rate = 0.06;*/ - - int snsteps = 1 + (int) (glu_abs(s2 - s1) / rate ); - int tnsteps = 1 + (int) (glu_abs(t2 - t1) / rate ); - int nsteps = max(1,max( snsteps, tnsteps )); - - REAL sstepsize = (s2 - s1) / (REAL) nsteps; - REAL tstepsize = (t2 - t1) / (REAL) nsteps; - TrimVertex *newvert = trimvertexpool.get( nsteps+1 ); - long i; - for( i = 0; i < nsteps; i++ ) { - newvert[i].param[0] = s1; - newvert[i].param[1] = t1; - s1 += sstepsize; - t1 += tstepsize; - } - newvert[i].param[0] = s2; - newvert[i].param[1] = t2; - - /* arc->makeSide( new(pwlarcpool) PwlArc( nsteps+1, newvert ), arc_bottom ); */ - arc->pwlArc = new(pwlarcpool) PwlArc( nsteps+1, newvert ); - - arc->clearbezier(); - arc->clearside( ); -} - - -/*----------------------------------------------------------------------------- - * tessellateLinear - constuct a linear pwl arc and attach it to an Arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::tessellateLinear( Arc *arc, REAL geo_stepsize, REAL arc_stepsize, int isrational ) -{ - assert( arc->pwlArc == NULL ); - REAL s1, s2, t1, t2; - - //we don't need to scale by arc_stepsize if the trim curve - //is piecewise linear. Reason: In pwl_right, pwl_left, pwl_top, pwl_left, - //and pwl, the nsteps is computed by deltaU (or V) /stepsize. - //The quantity deltaU/arc_stepsize doesn't have any meaning. And - //it causes problems: see bug 517641 - REAL stepsize = geo_stepsize; /* * arc_stepsize*/; - - BezierArc *b = arc->bezierArc; - - if( isrational ) { - s1 = b->cpts[0] / b->cpts[2]; - t1 = b->cpts[1] / b->cpts[2]; - s2 = b->cpts[b->stride+0] / b->cpts[b->stride+2]; - t2 = b->cpts[b->stride+1] / b->cpts[b->stride+2]; - } else { - s1 = b->cpts[0]; - t1 = b->cpts[1]; - s2 = b->cpts[b->stride+0]; - t2 = b->cpts[b->stride+1]; - } - if( s1 == s2 ) - if( t1 < t2 ) - pwl_right( arc, s1, t1, t2, stepsize ); - else - pwl_left( arc, s1, t1, t2, stepsize ); - else if( t1 == t2 ) - if( s1 < s2 ) - pwl_bottom( arc, t1, s1, s2, stepsize ); - else - pwl_top( arc, t1, s1, s2, stepsize ); - else - pwl( arc, s1, s2, t1, t2, stepsize ); -} - -/*----------------------------------------------------------------------------- - * tessellateNonlinear - constuct a nonlinear pwl arc and attach it to an Arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::tessellateNonlinear( Arc *arc, REAL geo_stepsize, REAL arc_stepsize, int isrational ) -{ - assert( arc->pwlArc == NULL ); - - REAL stepsize = geo_stepsize * arc_stepsize; - - BezierArc *bezierArc = arc->bezierArc; - - REAL size; //bounding box size of the curve in UV - { - int i,j; - REAL min_u, min_v, max_u,max_v; - min_u = max_u = bezierArc->cpts[0]; - min_v = max_v = bezierArc->cpts[1]; - for(i=1, j=bezierArc->stride; i<bezierArc->order; i++, j+= bezierArc->stride) - { - if(bezierArc->cpts[j] < min_u) - min_u = bezierArc->cpts[j]; - if(bezierArc->cpts[j] > max_u) - max_u = bezierArc->cpts[j]; - if(bezierArc->cpts[j+1] < min_v) - min_v = bezierArc->cpts[j+1]; - if(bezierArc->cpts[j+1] > max_v) - max_v = bezierArc->cpts[j+1]; - } - - size = max_u - min_u; - if(size < max_v - min_v) - size = max_v - min_v; - } - - /*int nsteps = 1 + (int) (1.0/stepsize);*/ - - int nsteps = (int) (size/stepsize); - if(nsteps <=0) - nsteps=1; - - TrimVertex *vert = trimvertexpool.get( nsteps+1 ); - REAL dp = 1.0/nsteps; - - - arc->pwlArc = new(pwlarcpool) PwlArc(); - arc->pwlArc->pts = vert; - - if( isrational ) { - REAL pow_u[MAXORDER], pow_v[MAXORDER], pow_w[MAXORDER]; - trim_power_coeffs( bezierArc, pow_u, 0 ); - trim_power_coeffs( bezierArc, pow_v, 1 ); - trim_power_coeffs( bezierArc, pow_w, 2 ); - - /* compute first point exactly */ - REAL *b = bezierArc->cpts; - vert->param[0] = b[0]/b[2]; - vert->param[1] = b[1]/b[2]; - - /* strength reduction on p = dp * step would introduce error */ - int step; -#ifndef NOELIMINATION - int ocanremove = 0; -#endif - register long order = bezierArc->order; - for( step=1, ++vert; step<nsteps; step++, vert++ ) { - register REAL p = dp * step; - register REAL u = pow_u[0]; - register REAL v = pow_v[0]; - register REAL w = pow_w[0]; - for( register int i = 1; i < order; i++ ) { - u = u * p + pow_u[i]; - v = v * p + pow_v[i]; - w = w * p + pow_w[i]; - } - vert->param[0] = u/w; - vert->param[1] = v/w; -#ifndef NOELIMINATION - REAL ds = glu_abs(vert[0].param[0] - vert[-1].param[0]); - REAL dt = glu_abs(vert[0].param[1] - vert[-1].param[1]); - int canremove = (ds<geo_stepsize && dt<geo_stepsize) ? 1 : 0; - REAL ods=0.0, odt=0.0; - - if( ocanremove && canremove ) { - REAL nds = ds + ods; - REAL ndt = dt + odt; - if( nds<geo_stepsize && ndt<geo_stepsize ) { - // remove previous point - --vert; - vert[0].param[0] = vert[1].param[0]; - vert[0].param[1] = vert[1].param[1]; - ods = nds; - odt = ndt; - ocanremove = 1; - } else { - ocanremove = canremove; - ods = ds; - odt = dt; - } - } else { - ocanremove = canremove; - ods = ds; - odt = dt; - } -#endif - } - - /* compute last point exactly */ - b += (order - 1) * bezierArc->stride; - vert->param[0] = b[0]/b[2]; - vert->param[1] = b[1]/b[2]; - - } else { - REAL pow_u[MAXORDER], pow_v[MAXORDER]; - trim_power_coeffs( bezierArc, pow_u, 0 ); - trim_power_coeffs( bezierArc, pow_v, 1 ); - - /* compute first point exactly */ - REAL *b = bezierArc->cpts; - vert->param[0] = b[0]; - vert->param[1] = b[1]; - - /* strength reduction on p = dp * step would introduce error */ - int step; -#ifndef NOELIMINATION - int ocanremove = 0; -#endif - register long order = bezierArc->order; - for( step=1, ++vert; step<nsteps; step++, vert++ ) { - register REAL p = dp * step; - register REAL u = pow_u[0]; - register REAL v = pow_v[0]; - for( register int i = 1; i < bezierArc->order; i++ ) { - u = u * p + pow_u[i]; - v = v * p + pow_v[i]; - } - vert->param[0] = u; - vert->param[1] = v; -#ifndef NOELIMINATION - REAL ds = glu_abs(vert[0].param[0] - vert[-1].param[0]); - REAL dt = glu_abs(vert[0].param[1] - vert[-1].param[1]); - int canremove = (ds<geo_stepsize && dt<geo_stepsize) ? 1 : 0; - REAL ods=0.0, odt=0.0; - - if( ocanremove && canremove ) { - REAL nds = ds + ods; - REAL ndt = dt + odt; - if( nds<geo_stepsize && ndt<geo_stepsize ) { - // remove previous point - --vert; - vert[0].param[0] = vert[1].param[0]; - vert[0].param[1] = vert[1].param[1]; - ods = nds; - odt = ndt; - ocanremove = 1; - } else { - ocanremove = canremove; - ods = ds; - odt = dt; - } - } else { - ocanremove = canremove; - ods = ds; - odt = dt; - } -#endif - } - - /* compute last point exactly */ - b += (order - 1) * bezierArc->stride; - vert->param[0] = b[0]; - vert->param[1] = b[1]; - } - arc->pwlArc->npts = vert - arc->pwlArc->pts + 1; -/* - for( TrimVertex *vt=pwlArc->pts; vt != vert-1; vt++ ) { - if( tooclose( vt[0].param[0], vt[1].param[0] ) ) - vt[1].param[0] = vt[0].param[0]; - if( tooclose( vt[0].param[1], vt[1].param[1] ) ) - vt[1].param[1] = vt[0].param[1]; - } -*/ -} - -const REAL ArcTessellator::gl_Bernstein[][MAXORDER][MAXORDER] = { - { - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {-1, 1, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {1, -2, 1, 0, 0, 0, 0, 0 }, - {-2, 2, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {-1, 3, -3, 1, 0, 0, 0, 0 }, - {3, -6, 3, 0, 0, 0, 0, 0 }, - {-3, 3, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {1, -4, 6, -4, 1, 0, 0, 0 }, - {-4, 12, -12, 4, 0, 0, 0, 0 }, - {6, -12, 6, 0, 0, 0, 0, 0 }, - {-4, 4, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {-1, 5, -10, 10, -5, 1, 0, 0 }, - {5, -20, 30, -20, 5, 0, 0, 0 }, - {-10, 30, -30, 10, 0, 0, 0, 0 }, - {10, -20, 10, 0, 0, 0, 0, 0 }, - {-5, 5, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {1, -6, 15, -20, 15, -6, 1, 0 }, - {-6, 30, -60, 60, -30, 6, 0, 0 }, - {15, -60, 90, -60, 15, 0, 0, 0 }, - {-20, 60, -60, 20, 0, 0, 0, 0 }, - {15, -30, 15, 0, 0, 0, 0, 0 }, - {-6, 6, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {-1, 7, -21, 35, -35, 21, -7, 1 }, - {7, -42, 105, -140, 105, -42, 7, 0 }, - {-21, 105, -210, 210, -105, 21, 0, 0 }, - {35, -140, 210, -140, 35, 0, 0, 0 }, - {-35, 105, -105, 35, 0, 0, 0, 0 }, - {21, -42, 21, 0, 0, 0, 0, 0 }, - {-7, 7, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 } - }}; - - -/*----------------------------------------------------------------------------- - * trim_power_coeffs - compute power basis coefficients from bezier coeffients - *----------------------------------------------------------------------------- - */ -void -ArcTessellator::trim_power_coeffs( BezierArc *bez_arc, REAL *p, int coord ) -{ - register int stride = bez_arc->stride; - register int order = bez_arc->order; - register REAL *base = bez_arc->cpts + coord; - - REAL const (*mat)[MAXORDER][MAXORDER] = &gl_Bernstein[order-1]; - REAL const (*lrow)[MAXORDER] = &(*mat)[order]; - - /* WIN32 didn't like the following line within the for-loop */ - REAL const (*row)[MAXORDER] = &(*mat)[0]; - for( ; row != lrow; row++ ) { - register REAL s = 0.0; - register REAL *point = base; - register REAL const *mlast = *row + order; - for( REAL const *m = *row; m != mlast; m++, point += stride ) - s += *(m) * (*point); - *(p++) = s; - } -} diff --git a/src/glu/sgi/libnurbs/internals/arctess.h b/src/glu/sgi/libnurbs/internals/arctess.h deleted file mode 100644 index 7802af90c0a..00000000000 --- a/src/glu/sgi/libnurbs/internals/arctess.h +++ /dev/null @@ -1,66 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * arctess.h - * - */ - -#ifndef __gluarctess_h_ -#define __gluarctess_h_ - -#include "defines.h" -#include "types.h" -#include "arc.h" - -struct BezierArc; -class Pool; -class TrimVertexPool; - -class ArcTessellator { -public: - ArcTessellator( TrimVertexPool&, Pool& ); - ~ArcTessellator( void ); - void bezier( Arc_ptr, REAL, REAL, REAL, REAL ); - void pwl( Arc_ptr, REAL, REAL, REAL, REAL, REAL ); - void pwl_left( Arc_ptr, REAL, REAL, REAL, REAL ); - void pwl_right( Arc_ptr, REAL, REAL, REAL, REAL ); - void pwl_top( Arc_ptr, REAL, REAL, REAL, REAL ); - void pwl_bottom( Arc_ptr, REAL, REAL, REAL, REAL ); - void tessellateLinear( Arc_ptr, REAL, REAL, int ); - void tessellateNonlinear( Arc_ptr, REAL, REAL, int ); -private: - static const REAL gl_Bernstein[][MAXORDER][MAXORDER]; - Pool& pwlarcpool; - TrimVertexPool& trimvertexpool; - static void trim_power_coeffs( BezierArc *, REAL[MAXORDER], int ); -}; - -#endif /* __gluarctess_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/backend.cc b/src/glu/sgi/libnurbs/internals/backend.cc deleted file mode 100644 index 27b41ebb29e..00000000000 --- a/src/glu/sgi/libnurbs/internals/backend.cc +++ /dev/null @@ -1,588 +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. -*/ - -/* - * backend.c++ - * - */ - -/* Bezier surface backend - - interprets display mode (wireframe,shaded,...) -*/ -#include <stdio.h> -#include "glimports.h" -#include "mystdio.h" -#include "backend.h" -#include "basiccrveval.h" -#include "basicsurfeval.h" - -#define NOWIREFRAME - - -/*------------------------------------------------------------------------- - * bgnsurf - preamble to surface definition and evaluations - *------------------------------------------------------------------------- - */ -void -Backend::bgnsurf( int wiretris, int wirequads, long nuid ) -{ -/*#ifndef NOWIREFRAME*/ //need this for old version - wireframetris = wiretris; - wireframequads = wirequads; -/*#endif*/ - - /*in the spec, GLU_DISPLAY_MODE is either - * GLU_FILL - * GLU_OUTLINE_POLY - * GLU_OUTLINE_PATCH. - *In fact, GLU_FLL is has the same effect as - * set GL_FRONT_AND_BACK to be GL_FILL - * and GLU_OUTLINE_POLY is the same as set - * GL_FRONT_AND_BACK to be GL_LINE - *It is more efficient to do this once at the beginning of - *each surface than to do it for each primitive. - * The internal has more options: outline_triangle and outline_quad - *can be seperated. But since this is not in spec, and more importantly, - *this is not so useful, so we don't need to keep this option. - */ - - surfaceEvaluator.bgnmap2f( nuid ); - - if(wiretris) - surfaceEvaluator.polymode(N_MESHLINE); - else - surfaceEvaluator.polymode(N_MESHFILL); -} - -void -Backend::patch( REAL ulo, REAL uhi, REAL vlo, REAL vhi ) -{ - surfaceEvaluator.domain2f( ulo, uhi, vlo, vhi ); -} - -void -Backend::surfbbox( long type, REAL *from, REAL *to ) -{ - surfaceEvaluator.range2f( type, from, to ); -} - -/*------------------------------------------------------------------------- - * surfpts - pass a desription of a surface map - *------------------------------------------------------------------------- - */ -void -Backend::surfpts( - long type, /* geometry, color, texture, normal */ - REAL *pts, /* control points */ - long ustride, /* distance to next point in u direction */ - long vstride, /* distance to next point in v direction */ - int uorder, /* u parametric order */ - int vorder, /* v parametric order */ - REAL ulo, /* u lower bound */ - REAL uhi, /* u upper bound */ - REAL vlo, /* v lower bound */ - REAL vhi ) /* v upper bound */ -{ - surfaceEvaluator.map2f( type,ulo,uhi,ustride,uorder,vlo,vhi,vstride,vorder,pts ); - surfaceEvaluator.enable( type ); -} - -/*------------------------------------------------------------------------- - * surfgrid - define a lattice of points with origin and offset - *------------------------------------------------------------------------- - */ -void -Backend::surfgrid( REAL u0, REAL u1, long nu, REAL v0, REAL v1, long nv ) -{ - surfaceEvaluator.mapgrid2f( nu, u0, u1, nv, v0, v1 ); -} - -/*------------------------------------------------------------------------- - * surfmesh - evaluate a mesh of points on lattice - *------------------------------------------------------------------------- - */ -void -Backend::surfmesh( long u, long v, long n, long m ) -{ -#ifndef NOWIREFRAME - if( wireframequads ) { - long v0, v1; - long u0f = u, u1f = u+n; - long v0f = v, v1f = v+m; - long parity = (u & 1); - - for( v0 = v0f, v1 = v0f++ ; v0<v1f; v0 = v1, v1++ ) { - surfaceEvaluator.bgnline(); - for( long u = u0f; u<=u1f; u++ ) { - if( parity ) { - surfaceEvaluator.evalpoint2i( u, v0 ); - surfaceEvaluator.evalpoint2i( u, v1 ); - } else { - surfaceEvaluator.evalpoint2i( u, v1 ); - surfaceEvaluator.evalpoint2i( u, v0 ); - } - parity = 1 - parity; - } - surfaceEvaluator.endline(); - } - } else { - surfaceEvaluator.mapmesh2f( N_MESHFILL, u, u+n, v, v+m ); - } -#else - if( wireframequads ) { - - surfaceEvaluator.mapmesh2f( N_MESHLINE, u, u+n, v, v+m ); - } else { - - surfaceEvaluator.mapmesh2f( N_MESHFILL, u, u+n, v, v+m ); - } -#endif -} - -/*------------------------------------------------------------------------- - * endsurf - postamble to surface - *------------------------------------------------------------------------- - */ -void -Backend::endsurf( void ) -{ - surfaceEvaluator.endmap2f(); -} - -/***************************************/ -void -Backend::bgntfan( void ) -{ - surfaceEvaluator.bgntfan(); -/* - if(wireframetris) - surfaceEvaluator.polymode( N_MESHLINE ); - else - surfaceEvaluator.polymode( N_MESHFILL ); -*/ -} - -void -Backend::endtfan( void ) -{ - surfaceEvaluator.endtfan(); -} - -void -Backend::bgnqstrip( void ) -{ - surfaceEvaluator.bgnqstrip(); -/* - if(wireframequads) - surfaceEvaluator.polymode( N_MESHLINE ); - else - surfaceEvaluator.polymode( N_MESHFILL ); -*/ -} - -void -Backend::endqstrip( void ) -{ - surfaceEvaluator.endqstrip(); -} - -void -Backend::evalUStrip(int n_upper, REAL v_upper, REAL* upper_val, - int n_lower, REAL v_lower, REAL* lower_val - ) -{ - surfaceEvaluator.evalUStrip(n_upper, v_upper, upper_val, - n_lower, v_lower, lower_val); -} - -void -Backend::evalVStrip(int n_left, REAL u_left, REAL* left_val, - int n_right, REAL u_right, REAL* right_val - ) -{ - surfaceEvaluator.evalVStrip(n_left, u_left, left_val, - n_right, u_right, right_val); -} - -/***************************************/ - - -/*------------------------------------------------------------------------- - * bgntmesh - preamble to a triangle mesh - *------------------------------------------------------------------------- - */ -void -Backend::bgntmesh( const char * ) -{ -#ifndef NOWIREFRAME - - meshindex = 0; /* I think these need to be initialized to zero */ - npts = 0; - - if( !wireframetris ) { - surfaceEvaluator.bgntmesh(); - } -#else - - if( wireframetris ) { - surfaceEvaluator.bgntmesh(); - surfaceEvaluator.polymode( N_MESHLINE ); - } else { - surfaceEvaluator.bgntmesh(); - surfaceEvaluator.polymode( N_MESHFILL ); - } -#endif -} - -void -Backend::tmeshvert( GridTrimVertex *v ) -{ - if( v->isGridVert() ) { - tmeshvert( v->g ); - } else { - tmeshvert( v->t ); - } -} - -void -Backend::tmeshvertNOGE(TrimVertex *t) -{ -// surfaceEvaluator.inDoEvalCoord2NOGE( t->param[0], t->param[1], temp, ttt); -#ifdef USE_OPTTT - surfaceEvaluator.inDoEvalCoord2NOGE( t->param[0], t->param[1], t->cache_point, t->cache_normal); -#endif -} - -//opt for a line with the same u. -void -Backend::tmeshvertNOGE_BU(TrimVertex *t) -{ -#ifdef USE_OPTTT - surfaceEvaluator.inDoEvalCoord2NOGE_BU( t->param[0], t->param[1], t->cache_point, t->cache_normal); -#endif -} - -//opt for a line with the same v. -void -Backend::tmeshvertNOGE_BV(TrimVertex *t) -{ -#ifdef USE_OPTTT - surfaceEvaluator.inDoEvalCoord2NOGE_BV( t->param[0], t->param[1], t->cache_point, t->cache_normal); -#endif -} - -void -Backend::preEvaluateBU(REAL u) -{ - surfaceEvaluator.inPreEvaluateBU_intfac(u); -} - -void -Backend::preEvaluateBV(REAL v) -{ - surfaceEvaluator.inPreEvaluateBV_intfac(v); -} - - -/*------------------------------------------------------------------------- - * tmeshvert - evaluate a point on a triangle mesh - *------------------------------------------------------------------------- - */ -void -Backend::tmeshvert( TrimVertex *t ) -{ - -#ifndef NOWIREFRAME - const long nuid = t->nuid; -#endif - const REAL u = t->param[0]; - const REAL v = t->param[1]; - -#ifndef NOWIREFRAME - npts++; - if( wireframetris ) { - if( npts >= 3 ) { - surfaceEvaluator.bgnclosedline(); - if( mesh[0][2] == 0 ) - surfaceEvaluator.evalcoord2f( mesh[0][3], mesh[0][0], mesh[0][1] ); - else - surfaceEvaluator.evalpoint2i( (long) mesh[0][0], (long) mesh[0][1] ); - if( mesh[1][2] == 0 ) - surfaceEvaluator.evalcoord2f( mesh[1][3], mesh[1][0], mesh[1][1] ); - else - surfaceEvaluator.evalpoint2i( (long) mesh[1][0], (long) mesh[1][1] ); - surfaceEvaluator.evalcoord2f( nuid, u, v ); - surfaceEvaluator.endclosedline(); - } - mesh[meshindex][0] = u; - mesh[meshindex][1] = v; - mesh[meshindex][2] = 0; - mesh[meshindex][3] = nuid; - meshindex = (meshindex+1) % 2; - } else { - surfaceEvaluator.evalcoord2f( nuid, u, v ); - } -#else - - surfaceEvaluator.evalcoord2f( 0, u, v ); -//for uninitial memory read surfaceEvaluator.evalcoord2f( nuid, u, v ); -#endif -} - -//the same as tmeshvert(trimvertex), for efficiency purpose -void -Backend::tmeshvert( REAL u, REAL v ) -{ -#ifndef NOWIREFRAME - const long nuid = 0; - - npts++; - if( wireframetris ) { - if( npts >= 3 ) { - surfaceEvaluator.bgnclosedline(); - if( mesh[0][2] == 0 ) - surfaceEvaluator.evalcoord2f( mesh[0][3], mesh[0][0], mesh[0][1] ); - else - surfaceEvaluator.evalpoint2i( (long) mesh[0][0], (long) mesh[0][1] ); - if( mesh[1][2] == 0 ) - surfaceEvaluator.evalcoord2f( mesh[1][3], mesh[1][0], mesh[1][1] ); - else - surfaceEvaluator.evalpoint2i( (long) mesh[1][0], (long) mesh[1][1] ); - surfaceEvaluator.evalcoord2f( nuid, u, v ); - surfaceEvaluator.endclosedline(); - } - mesh[meshindex][0] = u; - mesh[meshindex][1] = v; - mesh[meshindex][2] = 0; - mesh[meshindex][3] = nuid; - meshindex = (meshindex+1) % 2; - } else { - surfaceEvaluator.evalcoord2f( nuid, u, v ); - } -#else - - surfaceEvaluator.evalcoord2f( 0, u, v ); -#endif -} - -/*------------------------------------------------------------------------- - * tmeshvert - evaluate a grid point of a triangle mesh - *------------------------------------------------------------------------- - */ -void -Backend::tmeshvert( GridVertex *g ) -{ - const long u = g->gparam[0]; - const long v = g->gparam[1]; - -#ifndef NOWIREFRAME - npts++; - if( wireframetris ) { - if( npts >= 3 ) { - surfaceEvaluator.bgnclosedline(); - if( mesh[0][2] == 0 ) - surfaceEvaluator.evalcoord2f( (long) mesh[0][3], mesh[0][0], mesh[0][1] ); - else - surfaceEvaluator.evalpoint2i( (long) mesh[0][0], (long) mesh[0][1] ); - if( mesh[1][2] == 0 ) - surfaceEvaluator.evalcoord2f( (long) mesh[1][3], mesh[1][0], mesh[1][1] ); - else - surfaceEvaluator.evalpoint2i( (long) mesh[1][0], (long) mesh[1][1] ); - surfaceEvaluator.evalpoint2i( u, v ); - surfaceEvaluator.endclosedline(); - } - mesh[meshindex][0] = u; - mesh[meshindex][1] = v; - mesh[meshindex][2] = 1; - meshindex = (meshindex+1) % 2; - } else { - surfaceEvaluator.evalpoint2i( u, v ); - } -#else - surfaceEvaluator.evalpoint2i( u, v ); -#endif -} - -/*------------------------------------------------------------------------- - * swaptmesh - perform a swap of the triangle mesh pointers - *------------------------------------------------------------------------- - */ -void -Backend::swaptmesh( void ) -{ -#ifndef NOWIREFRAME - if( wireframetris ) { - meshindex = 1 - meshindex; - } else { - surfaceEvaluator.swaptmesh(); - } -#else - surfaceEvaluator.swaptmesh(); -#endif -} - -/*------------------------------------------------------------------------- - * endtmesh - postamble to triangle mesh - *------------------------------------------------------------------------- - */ -void -Backend::endtmesh( void ) -{ -#ifndef NOWIREFRAME - if( ! wireframetris ) - surfaceEvaluator.endtmesh(); -#else - surfaceEvaluator.endtmesh(); -/* surfaceEvaluator.polymode( N_MESHFILL );*/ -#endif -} - - -/*------------------------------------------------------------------------- - * bgnoutline - preamble to outlined rendering - *------------------------------------------------------------------------- - */ -void -Backend::bgnoutline( void ) -{ - surfaceEvaluator.bgnline(); -} - -/*------------------------------------------------------------------------- - * linevert - evaluate a point on an outlined contour - *------------------------------------------------------------------------- - */ -void -Backend::linevert( TrimVertex *t ) -{ - surfaceEvaluator.evalcoord2f( t->nuid, t->param[0], t->param[1] ); -} - -/*------------------------------------------------------------------------- - * linevert - evaluate a grid point of an outlined contour - *------------------------------------------------------------------------- - */ -void -Backend::linevert( GridVertex *g ) -{ - surfaceEvaluator.evalpoint2i( g->gparam[0], g->gparam[1] ); -} - -/*------------------------------------------------------------------------- - * endoutline - postamble to outlined rendering - *------------------------------------------------------------------------- - */ -void -Backend::endoutline( void ) -{ - surfaceEvaluator.endline(); -} - -/*------------------------------------------------------------------------- - * triangle - output a triangle - *------------------------------------------------------------------------- - */ -void -Backend::triangle( TrimVertex *a, TrimVertex *b, TrimVertex *c ) -{ -/* bgntmesh( "spittriangle" );*/ - bgntfan(); - tmeshvert( a ); - tmeshvert( b ); - tmeshvert( c ); - endtfan(); -/* endtmesh();*/ -} - -void -Backend::bgncurv( void ) -{ - curveEvaluator.bgnmap1f( 0 ); -} - -void -Backend::segment( REAL ulo, REAL uhi ) -{ - curveEvaluator.domain1f( ulo, uhi ); -} - -void -Backend::curvpts( - long type, /* geometry, color, texture, normal */ - REAL *pts, /* control points */ - long stride, /* distance to next point */ - int order, /* parametric order */ - REAL ulo, /* lower parametric bound */ - REAL uhi ) /* upper parametric bound */ - -{ - curveEvaluator.map1f( type, ulo, uhi, stride, order, pts ); - curveEvaluator.enable( type ); -} - -void -Backend::curvgrid( REAL u0, REAL u1, long nu ) -{ - curveEvaluator.mapgrid1f( nu, u0, u1 ); -} - -void -Backend::curvmesh( long from, long n ) -{ - curveEvaluator.mapmesh1f( N_MESHFILL, from, from+n ); -} - -void -Backend::curvpt(REAL u) -{ - curveEvaluator.evalcoord1f( 0, u ); -} - -void -Backend::bgnline( void ) -{ - curveEvaluator.bgnline(); -} - -void -Backend::endline( void ) -{ - curveEvaluator.endline(); -} - -void -Backend::endcurv( void ) -{ - curveEvaluator.endmap1f(); -} diff --git a/src/glu/sgi/libnurbs/internals/backend.h b/src/glu/sgi/libnurbs/internals/backend.h deleted file mode 100644 index 6840cb19e92..00000000000 --- a/src/glu/sgi/libnurbs/internals/backend.h +++ /dev/null @@ -1,113 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * backend.h - * - */ - -#ifndef __glubackend_h_ -#define __glubackend_h_ - -#include "trimvertex.h" -#include "gridvertex.h" -#include "gridtrimvertex.h" - -class BasicCurveEvaluator; -class BasicSurfaceEvaluator; - -class Backend { -private: - BasicCurveEvaluator& curveEvaluator; - BasicSurfaceEvaluator& surfaceEvaluator; -public: - Backend( BasicCurveEvaluator &c, BasicSurfaceEvaluator& e ) - : curveEvaluator(c), surfaceEvaluator(e) {} - - /* surface backend routines */ - void bgnsurf( int, int, long ); - void patch( REAL, REAL, REAL, REAL ); - void surfpts( long, REAL *, long, long, int, int, - REAL, REAL, REAL, REAL ); - void surfbbox( long, REAL *, REAL * ); - void surfgrid( REAL, REAL, long, REAL, REAL, long ); - void surfmesh( long, long, long, long ); - void bgntmesh( const char * ); - void endtmesh( void ); - void swaptmesh( void ); - void tmeshvert( GridTrimVertex * ); - void tmeshvert( TrimVertex * ); - void tmeshvert( GridVertex * ); - void tmeshvert( REAL u, REAL v ); - void linevert( TrimVertex * ); - void linevert( GridVertex * ); - void bgnoutline( void ); - void endoutline( void ); - void endsurf( void ); - void triangle( TrimVertex*, TrimVertex*, TrimVertex* ); - - void bgntfan(); - void endtfan(); - void bgnqstrip(); - void endqstrip(); - void evalUStrip(int n_upper, REAL v_upper, REAL* upper_val, - int n_lower, REAL v_lower, REAL* lower_val - ); - void evalVStrip(int n_left, REAL u_left, REAL* left_val, - int n_right, REAL v_right, REAL* right_val - ); - void tmeshvertNOGE(TrimVertex *t); - void tmeshvertNOGE_BU(TrimVertex *t); - void tmeshvertNOGE_BV(TrimVertex *t); - void preEvaluateBU(REAL u); - void preEvaluateBV(REAL v); - - - /* curve backend routines */ - void bgncurv( void ); - void segment( REAL, REAL ); - void curvpts( long, REAL *, long, int, REAL, REAL ); - void curvgrid( REAL, REAL, long ); - void curvmesh( long, long ); - void curvpt( REAL ); - void bgnline( void ); - void endline( void ); - void endcurv( void ); -private: -#ifndef NOWIREFRAME - int wireframetris; - int wireframequads; - int npts; - REAL mesh[3][4]; - int meshindex; -#endif -}; - -#endif /* __glubackend_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/basiccrveval.cc b/src/glu/sgi/libnurbs/internals/basiccrveval.cc deleted file mode 100644 index cc473e4c2a1..00000000000 --- a/src/glu/sgi/libnurbs/internals/basiccrveval.cc +++ /dev/null @@ -1,138 +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. -*/ - -/* - * basiccrveval.c++ - * - */ - -#include "mystdio.h" -#include "types.h" -#include "basiccrveval.h" - -void -BasicCurveEvaluator::domain1f( REAL, REAL ) -{ -#ifndef NDEBUG - _glu_dprintf( "domain1f\n" ); -#endif -} - -void -BasicCurveEvaluator::range1f( long , REAL *, REAL * ) -{ -#ifndef NDEBUG - _glu_dprintf( "range1f\n" ); -#endif -} - -void -BasicCurveEvaluator::enable( long ) -{ -#ifndef NDEBUG - _glu_dprintf( "enable\n" ); -#endif -} - -void -BasicCurveEvaluator::disable( long ) -{ -#ifndef NDEBUG - _glu_dprintf( "disable\n" ); -#endif -} - -void -BasicCurveEvaluator::bgnmap1f( long ) -{ -#ifndef NDEBUG - _glu_dprintf( "bgnmap1f\n" ); -#endif -} - -void -BasicCurveEvaluator::map1f( long, REAL, REAL, long, long, REAL * ) -{ -#ifndef NDEBUG - _glu_dprintf( "map1f\n" ); -#endif -} - -void -BasicCurveEvaluator::mapgrid1f( long, REAL, REAL ) -{ -#ifndef NDEBUG - _glu_dprintf( "mapgrid1f\n" ); -#endif -} - -void -BasicCurveEvaluator::mapmesh1f( long, long, long ) -{ -#ifndef NDEBUG - _glu_dprintf( "mapmesh1f\n" ); -#endif -} - -void -BasicCurveEvaluator::evalcoord1f( long, REAL ) -{ -#ifndef NDEBUG - _glu_dprintf( "evalcoord1f\n" ); -#endif -} - -void -BasicCurveEvaluator::endmap1f( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "endmap1f\n" ); -#endif -} - -void -BasicCurveEvaluator::bgnline( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "bgnline\n" ); -#endif -} - -void -BasicCurveEvaluator::endline( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "endline\n" ); -#endif -} diff --git a/src/glu/sgi/libnurbs/internals/basiccrveval.h b/src/glu/sgi/libnurbs/internals/basiccrveval.h deleted file mode 100644 index 277dc8dc967..00000000000 --- a/src/glu/sgi/libnurbs/internals/basiccrveval.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * basiccurveeval.h - * - */ - -#ifndef __glubasiccrveval_h_ -#define __glubasiccrveval_h_ - -#include "types.h" -#include "displaymode.h" -#include "cachingeval.h" - -class BasicCurveEvaluator : public CachingEvaluator { -public: - virtual ~BasicCurveEvaluator() { /* silence warning*/ } - virtual void domain1f( REAL, REAL ); - virtual void range1f( long, REAL *, REAL * ); - - virtual void enable( long ); - virtual void disable( long ); - virtual void bgnmap1f( long ); - virtual void map1f( long, REAL, REAL, long, long, REAL * ); - virtual void mapgrid1f( long, REAL, REAL ); - virtual void mapmesh1f( long, long, long ); - virtual void evalcoord1f( long, REAL ); - virtual void endmap1f( void ); - - virtual void bgnline( void ); - virtual void endline( void ); -}; - -#endif /* __glubasiccrveval_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/basicsurfeval.cc b/src/glu/sgi/libnurbs/internals/basicsurfeval.cc deleted file mode 100644 index fad5dd0ada3..00000000000 --- a/src/glu/sgi/libnurbs/internals/basicsurfeval.cc +++ /dev/null @@ -1,232 +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. -*/ - -/* - * basicsurfaceevaluator.c++ - * - */ - -#include "mystdio.h" -#include "types.h" -#include "basicsurfeval.h" - -#ifdef __WATCOMC__ -#pragma warning 726 10 -#endif - -void -BasicSurfaceEvaluator::domain2f( REAL, REAL, REAL, REAL ) -{ -#ifndef NDEBUG - _glu_dprintf( "domain2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::polymode( long ) -{ -#ifndef NDEBUG - _glu_dprintf( "polymode\n" ); -#endif -} - -void -BasicSurfaceEvaluator::range2f( long type, REAL *from, REAL *to ) -{ -#ifndef NDEBUG - _glu_dprintf( "range2f type %ld, from (%g,%g), to (%g,%g)\n", - type, from[0], from[1], to[0], to[1] ); -#endif -} - -void -BasicSurfaceEvaluator::enable( long ) -{ -#ifndef NDEBUG - _glu_dprintf( "enable\n" ); -#endif -} - -void -BasicSurfaceEvaluator::disable( long ) -{ -#ifndef NDEBUG - _glu_dprintf( "disable\n" ); -#endif -} - -void -BasicSurfaceEvaluator::bgnmap2f( long ) -{ -#ifndef NDEBUG - _glu_dprintf( "bgnmap2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::endmap2f( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "endmap2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::map2f( long, REAL, REAL, long, long, - REAL, REAL, long, long, - REAL * ) -{ -#ifndef NDEBUG - _glu_dprintf( "map2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::mapgrid2f( long, REAL, REAL, long, REAL, REAL ) -{ -#ifndef NDEBUG - _glu_dprintf( "mapgrid2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::mapmesh2f( long, long, long, long, long ) -{ -#ifndef NDEBUG - _glu_dprintf( "mapmesh2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::evalcoord2f( long, REAL, REAL ) -{ -#ifndef NDEBUG - _glu_dprintf( "evalcoord2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::evalpoint2i( long, long ) -{ -#ifndef NDEBUG - _glu_dprintf( "evalpoint2i\n" ); -#endif -} - -void -BasicSurfaceEvaluator::bgnline( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "bgnline\n" ); -#endif -} - -void -BasicSurfaceEvaluator::endline( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "endline\n" ); -#endif -} - -void -BasicSurfaceEvaluator::bgnclosedline( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "bgnclosedline\n" ); -#endif -} - -void -BasicSurfaceEvaluator::endclosedline( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "endclosedline\n" ); -#endif -} - -void -BasicSurfaceEvaluator::bgntfan( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "bgntfan\n" ); -#endif -} - -void -BasicSurfaceEvaluator::endtfan( void ) -{ -} - - -void -BasicSurfaceEvaluator::bgntmesh( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "bgntmesh\n" ); -#endif -} - -void -BasicSurfaceEvaluator::swaptmesh( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "swaptmesh\n" ); -#endif -} - -void -BasicSurfaceEvaluator::endtmesh( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "endtmesh\n" ); -#endif -} - -void -BasicSurfaceEvaluator::bgnqstrip( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "bgnqstrip\n" ); -#endif -} - -void -BasicSurfaceEvaluator::endqstrip( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "endqstrip\n" ); -#endif -} - diff --git a/src/glu/sgi/libnurbs/internals/basicsurfeval.h b/src/glu/sgi/libnurbs/internals/basicsurfeval.h deleted file mode 100644 index 8fe18a67fb0..00000000000 --- a/src/glu/sgi/libnurbs/internals/basicsurfeval.h +++ /dev/null @@ -1,90 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * basicsurfeval.h - * - */ - -#ifndef __glubasicsurfeval_h_ -#define __glubasicsurfeval_h_ - -#include "types.h" -#include "displaymode.h" -#include "cachingeval.h" - -class BasicSurfaceEvaluator : public CachingEvaluator { -public: - virtual ~BasicSurfaceEvaluator() { /* silence warning*/ } - virtual void range2f( long, REAL *, REAL * ); - virtual void domain2f( REAL, REAL, REAL, REAL ); - - virtual void enable( long ); - virtual void disable( long ); - virtual void bgnmap2f( long ); - virtual void map2f( long, REAL, REAL, long, long, - REAL, REAL, long, long, - REAL * ); - virtual void mapgrid2f( long, REAL, REAL, long, REAL, REAL ); - virtual void mapmesh2f( long, long, long, long, long ); - virtual void evalcoord2f( long, REAL, REAL ); - virtual void evalpoint2i( long, long ); - virtual void endmap2f( void ); - - virtual void polymode( long ); - virtual void bgnline( void ); - virtual void endline( void ); - virtual void bgnclosedline( void ); - virtual void endclosedline( void ); - virtual void bgntmesh( void ); - virtual void swaptmesh( void ); - virtual void endtmesh( void ); - virtual void bgnqstrip( void ); - virtual void endqstrip( void ); - - virtual void bgntfan( void ); - virtual void endtfan( void ); - - virtual void evalUStrip(int n_upper, REAL v_upper, REAL* upper_val, - int n_lower, REAL v_lower, REAL* lower_val - ) = 0; - - virtual void evalVStrip(int n_left, REAL u_left, REAL* left_val, - int n_right, REAL u_right, REAL* right_val - ) = 0; - virtual void inDoEvalCoord2NOGE(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0; - virtual void inDoEvalCoord2NOGE_BU(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0; - virtual void inDoEvalCoord2NOGE_BV(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0; - virtual void inPreEvaluateBV_intfac(REAL v ) = 0; - virtual void inPreEvaluateBU_intfac(REAL u ) = 0; - -}; - -#endif /* __glubasicsurfeval_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/bezierarc.h b/src/glu/sgi/libnurbs/internals/bezierarc.h deleted file mode 100644 index 4acfb094881..00000000000 --- a/src/glu/sgi/libnurbs/internals/bezierarc.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * bezierarc.h - * - */ - -#ifndef __glubezierarc_h -#define __glubezierarc_h - -#include "myassert.h" - -class Mapdesc; - -struct BezierArc : public PooledObj { /* a bezier arc */ - REAL * cpts; /* control points of arc */ - int order; /* order of arc */ - int stride; /* REAL distance between points */ - long type; /* curve type */ - Mapdesc * mapdesc; -}; - -#endif /* __glubezierarc_h */ diff --git a/src/glu/sgi/libnurbs/internals/bin.cc b/src/glu/sgi/libnurbs/internals/bin.cc deleted file mode 100644 index d85bd80dc8b..00000000000 --- a/src/glu/sgi/libnurbs/internals/bin.cc +++ /dev/null @@ -1,167 +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. -*/ - -/* - * bin.c++ - * - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "bin.h" - -/*---------------------------------------------------------------------------- - * Constructor and destructor - *---------------------------------------------------------------------------- - */ -Bin::Bin() -{ - head = NULL; - current = 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( const 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 - } - } -} - diff --git a/src/glu/sgi/libnurbs/internals/bin.h b/src/glu/sgi/libnurbs/internals/bin.h deleted file mode 100644 index dd0f878f60e..00000000000 --- a/src/glu/sgi/libnurbs/internals/bin.h +++ /dev/null @@ -1,121 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * bin.h - * - */ - -#ifndef __glubin_h_ -#define __glubin_h_ - -#include "myassert.h" -#include "arc.h" -#include "defines.h" - -class Bin -{ /* a linked list of jordan arcs */ -private: - Arc_ptr head;/*first arc on list */ - Arc_ptr current; /* current arc on list */ -public: - Bin(); - ~Bin(); - inline Arc_ptr firstarc( void ); - inline Arc_ptr nextarc( void ); - inline Arc_ptr removearc( void ); - inline int isnonempty( void ) { return (head ? 1 : 0); } - inline void addarc( Arc_ptr ); - void remove_this_arc( Arc_ptr ); - int numarcs( void ); - void adopt( void ); - void markall( void ); - void show( const char * ); - void listBezier( void ); -}; - -/*---------------------------------------------------------------------------- - * Bin::addarc - add an Arc_ptr to head of linked list of Arc_ptr - *---------------------------------------------------------------------------- - */ - -inline void -Bin::addarc( Arc_ptr jarc ) -{ - jarc->link = head; - head = jarc; -} - -/*---------------------------------------------------------------------------- - * Bin::removearc - remove first Arc_ptr from bin - *---------------------------------------------------------------------------- - */ - -inline Arc_ptr -Bin::removearc( void ) -{ - Arc_ptr jarc = head; - - if( jarc ) head = jarc->link; - return jarc; -} - - -/*---------------------------------------------------------------------------- - * BinIter::nextarc - return current arc in bin and advance pointer to next arc - *---------------------------------------------------------------------------- - */ - -inline Arc_ptr -Bin::nextarc( void ) -{ - Arc_ptr jarc = current; - -#ifdef DEBUG - assert( jarc->check() != 0 ); -#endif - - if( jarc ) current = jarc->link; - return jarc; -} - -/*---------------------------------------------------------------------------- - * BinIter::firstarc - set current arc to first arc of bin advance to next arc - *---------------------------------------------------------------------------- - */ - -inline Arc_ptr -Bin::firstarc( void ) -{ - current = head; - return nextarc( ); -} - -#endif /* __glubin_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/bufpool.cc b/src/glu/sgi/libnurbs/internals/bufpool.cc deleted file mode 100644 index 53ac1a5695d..00000000000 --- a/src/glu/sgi/libnurbs/internals/bufpool.cc +++ /dev/null @@ -1,113 +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. -*/ - -/* - * bufpool.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "bufpool.h" - - -/*----------------------------------------------------------------------------- - * Pool - allocate a new pool of buffers - *----------------------------------------------------------------------------- - */ -Pool::Pool( int _buffersize, int initpoolsize, const char *n ) -{ - if((unsigned)_buffersize < sizeof(Buffer)) - buffersize = sizeof(Buffer); - else - buffersize = _buffersize; - initsize = initpoolsize * buffersize; - nextsize = initsize; - name = n; - magic = is_allocated; - nextblock = 0; - curblock = 0; - freelist = 0; - nextfree = 0; - for (int i = 0; i < NBLOCKS; i++) { - blocklist[i] = 0; - } -} - -/*----------------------------------------------------------------------------- - * ~Pool - free a pool of buffers and the pool itself - *----------------------------------------------------------------------------- - */ - -Pool::~Pool( void ) -{ - assert( (this != 0) && (magic == is_allocated) ); - - while( nextblock ) { - delete [] blocklist[--nextblock]; - blocklist[nextblock] = 0; - } - magic = is_free; -} - - -void Pool::grow( void ) -{ - assert( (this != 0) && (magic == is_allocated) ); - curblock = new char[nextsize]; - blocklist[nextblock++] = curblock; - nextfree = nextsize; - nextsize *= 2; -} - -/*----------------------------------------------------------------------------- - * Pool::clear - free buffers associated with pool but keep pool - *----------------------------------------------------------------------------- - */ - -void -Pool::clear( void ) -{ - assert( (this != 0) && (magic == is_allocated) ); - - while( nextblock ) { - delete [] blocklist[--nextblock]; - blocklist[nextblock] = 0; - } - curblock = 0; - freelist = 0; - nextfree = 0; - if( nextsize > initsize ) - nextsize /= 2; -} diff --git a/src/glu/sgi/libnurbs/internals/bufpool.h b/src/glu/sgi/libnurbs/internals/bufpool.h deleted file mode 100644 index 0fa9433750c..00000000000 --- a/src/glu/sgi/libnurbs/internals/bufpool.h +++ /dev/null @@ -1,141 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * bufpool.h - * - */ - -#ifndef __glubufpool_h_ -#define __glubufpool_h_ - -#include "gluos.h" -#include "myassert.h" -#include "mystdlib.h" - -#define NBLOCKS 32 - -class Buffer { - friend class Pool; - Buffer * next; /* next buffer on free list */ -}; - -class Pool { -public: - Pool( int, int, const char * ); - ~Pool( void ); - inline void* new_buffer( void ); - inline void free_buffer( void * ); - void clear( void ); - -private: - void grow( void ); - -protected: - Buffer *freelist; /* linked list of free buffers */ - char *blocklist[NBLOCKS]; /* blocks of malloced memory */ - int nextblock; /* next free block index */ - char *curblock; /* last malloced block */ - int buffersize; /* bytes per buffer */ - int nextsize; /* size of next block of memory */ - int nextfree; /* byte offset past next free buffer */ - int initsize; - enum Magic { is_allocated = 0xf3a1, is_free = 0xf1a2 }; - const char *name; /* name of the pool */ - Magic magic; /* marker for valid pool */ -}; - -/*----------------------------------------------------------------------------- - * Pool::free_buffer - return a buffer to a pool - *----------------------------------------------------------------------------- - */ - -inline void -Pool::free_buffer( void *b ) -{ - assert( (this != 0) && (magic == is_allocated) ); - - /* add buffer to singly connected free list */ - - ((Buffer *) b)->next = freelist; - freelist = (Buffer *) b; -} - - -/*----------------------------------------------------------------------------- - * Pool::new_buffer - allocate a buffer from a pool - *----------------------------------------------------------------------------- - */ - -inline void * -Pool::new_buffer( void ) -{ - void *buffer; - - assert( (this != 0) && (magic == is_allocated) ); - - /* find free buffer */ - - if( freelist ) { - buffer = (void *) freelist; - freelist = freelist->next; - } else { - if( ! nextfree ) - grow( ); - nextfree -= buffersize;; - buffer = (void *) (curblock + nextfree); - } - return buffer; -} - -class PooledObj { -public: - inline void * operator new( size_t, Pool & ); - inline void * operator new( size_t, void *); - inline void * operator new( size_t s) - { return ::new char[s]; } - inline void operator delete( void * ) { assert( 0 ); } - inline void operator delete( void *, Pool & ) { assert( 0 ); } - inline void deleteMe( Pool & ); -}; - -inline void * -PooledObj::operator new( size_t, Pool& pool ) -{ - return pool.new_buffer(); -} - -inline void -PooledObj::deleteMe( Pool& pool ) -{ - pool.free_buffer( (void *) this ); -} - -#endif /* __glubufpool_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/cachingeval.cc b/src/glu/sgi/libnurbs/internals/cachingeval.cc deleted file mode 100644 index 3fab38c1064..00000000000 --- a/src/glu/sgi/libnurbs/internals/cachingeval.cc +++ /dev/null @@ -1,78 +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. -*/ - -/* - * cachingeval.c++ - * - */ - -#include "cachingeval.h" - -int -CachingEvaluator::canRecord( void ) -{ - return 0; -} - -int -CachingEvaluator::canPlayAndRecord( void ) -{ - return 0; -} - -int -CachingEvaluator::createHandle( int ) -{ - return 0; -} - -void -CachingEvaluator::beginOutput( ServiceMode, int ) -{ -} - -void -CachingEvaluator::endOutput( void ) -{ -} - -void -CachingEvaluator::discardRecording( int ) -{ -} - -void -CachingEvaluator::playRecording( int ) -{ -} diff --git a/src/glu/sgi/libnurbs/internals/cachingeval.h b/src/glu/sgi/libnurbs/internals/cachingeval.h deleted file mode 100644 index b390067a281..00000000000 --- a/src/glu/sgi/libnurbs/internals/cachingeval.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * cachingeval.h - * - */ - -#ifndef __glucachingval_h_ -#define __glucachingval_h_ - -class CachingEvaluator { -public: - virtual ~CachingEvaluator() { /* silence warning*/ } - enum ServiceMode { play, record, playAndRecord }; - virtual int canRecord( void ); - virtual int canPlayAndRecord( void ); - virtual int createHandle( int handle ); - virtual void beginOutput( ServiceMode, int handle ); - virtual void endOutput( void ); - virtual void discardRecording( int handle ); - virtual void playRecording( int handle ); -}; -#endif /* __glucachingval_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/ccw.cc b/src/glu/sgi/libnurbs/internals/ccw.cc deleted file mode 100644 index eb01b7781a7..00000000000 --- a/src/glu/sgi/libnurbs/internals/ccw.cc +++ /dev/null @@ -1,565 +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. -*/ - -/* - * ccw.c++ - * - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "subdivider.h" -#include "types.h" -#include "arc.h" -#include "trimvertex.h" -#include "simplemath.h" - -inline int -Subdivider::bbox( TrimVertex *a, TrimVertex *b, TrimVertex *c, int p ) -{ - return bbox( a->param[p], b->param[p], c->param[p], - a->param[1-p], b->param[1-p], c->param[1-p] ); -} - -int -Subdivider::ccwTurn_sr( Arc_ptr j1, Arc_ptr j2 ) // dir = 1 -{ - register TrimVertex *v1 = &j1->pwlArc->pts[j1->pwlArc->npts-1]; - register TrimVertex *v1last = &j1->pwlArc->pts[0]; - register TrimVertex *v2 = &j2->pwlArc->pts[0]; - register TrimVertex *v2last = &j2->pwlArc->pts[j2->pwlArc->npts-1]; - register TrimVertex *v1next = v1-1; - register TrimVertex *v2next = v2+1; - int sgn; - - assert( v1 != v1last ); - assert( v2 != v2last ); - -#ifndef NDEBUG - _glu_dprintf( "arc_ccw_turn, p = %d\n", 0 ); -#endif - - // the arcs lie on the line (0 == v1->param[0]) - if( v1->param[0] == v1next->param[0] && v2->param[0] == v2next->param[0] ) - return 0; - - if( v2next->param[0] < v2->param[0] || v1next->param[0] < v1->param[0] ) - ::mylongjmp( jumpbuffer, 28 ); - - if( v1->param[1] < v2->param[1] ) - return 0; - else if( v1->param[1] > v2->param[1] ) - return 1; - - while( 1 ) { - if( v1next->param[0] < v2next->param[0] ) { -#ifndef NDEBUG - _glu_dprintf( "case a\n" ); -#endif - assert( v1->param[0] <= v1next->param[0] ); - assert( v2->param[0] <= v1next->param[0] ); - switch( bbox( v2, v2next, v1next, 1 ) ) { - case -1: - return 0; - case 0: - sgn = ccw( v1next, v2, v2next ); - if( sgn != -1 ) { - return sgn; - } else { -#ifdef DEBUG - _glu_dprintf( "decr\n" ); -#endif - v1 = v1next--; - if( v1 == v1last ) { -#ifdef DEBUG - _glu_dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 1; - } - } else if( v1next->param[0] > v2next->param[0] ) { -#ifndef NDEBUG - _glu_dprintf( "case b\n" ); -#endif - assert( v1->param[0] <= v2next->param[0] ); - assert( v2->param[0] <= v2next->param[0] ); - switch( bbox( v1, v1next, v2next, 1 ) ) { - case -1: - return 1; - case 0: - sgn = ccw( v1next, v1, v2next ); - if( sgn != -1 ) { - return sgn; - } else { -#ifdef DEBUG - _glu_dprintf( "incr\n" ); -#endif - v2 = v2next++; - if( v2 == v2last ) { -#ifdef DEBUG - _glu_dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 0; - } - } else { -#ifndef NDEBUG - _glu_dprintf( "case ab\n" ); -#endif - if( v1next->param[1] < v2next->param[1] ) - return 0; - else if( v1next->param[1] > v2next->param[1] ) - return 1; - else { -#ifdef DEBUG - _glu_dprintf( "incr\n" ); -#endif - v2 = v2next++; - if( v2 == v2last ) { -#ifdef DEBUG - _glu_dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - } - } -} - -int -Subdivider::ccwTurn_sl( Arc_ptr j1, Arc_ptr j2 ) // dir = 0 -{ - register TrimVertex *v1 = &j1->pwlArc->pts[j1->pwlArc->npts-1]; - register TrimVertex *v1last = &j1->pwlArc->pts[0]; - register TrimVertex *v2 = &j2->pwlArc->pts[0]; - register TrimVertex *v2last = &j2->pwlArc->pts[j2->pwlArc->npts-1]; - register TrimVertex *v1next = v1-1; - register TrimVertex *v2next = v2+1; - int sgn; - - assert( v1 != v1last ); - assert( v2 != v2last ); - -#ifndef NDEBUG - _glu_dprintf( "arc_ccw_turn, p = %d\n", 0 ); -#endif - - // the arcs lie on the line (0 == v1->param[0]) - if( v1->param[0] == v1next->param[0] && v2->param[0] == v2next->param[0] ) - return 0; - - if( v2next->param[0] > v2->param[0] || v1next->param[0] > v1->param[0] ) - ::mylongjmp( jumpbuffer, 28 ); - - if( v1->param[1] < v2->param[1] ) - return 1; - else if( v1->param[1] > v2->param[1] ) - return 0; - - while( 1 ) { - if( v1next->param[0] > v2next->param[0] ) { -#ifndef NDEBUG - _glu_dprintf( "case c\n" ); -#endif - assert( v1->param[0] >= v1next->param[0] ); - assert( v2->param[0] >= v1next->param[0] ); - switch( bbox( v2next, v2, v1next, 1 ) ) { - case -1: - return 1; - case 0: - sgn = ccw( v1next, v2, v2next ); - if( sgn != -1 ) - return sgn; - else { - v1 = v1next--; -#ifdef DEBUG - _glu_dprintf( "decr\n" ); -#endif - if( v1 == v1last ) { -#ifdef DEBUG - _glu_dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 0; - } - } else if( v1next->param[0] < v2next->param[0] ) { -#ifndef NDEBUG - _glu_dprintf( "case d\n" ); -#endif - assert( v1->param[0] >= v2next->param[0] ); - assert( v2->param[0] >= v2next->param[0] ); - switch( bbox( v1next, v1, v2next, 1 ) ) { - case -1: - return 0; - case 0: - sgn = ccw( v1next, v1, v2next ); - if( sgn != -1 ) - return sgn; - else { - v2 = v2next++; -#ifdef DEBUG - _glu_dprintf( "incr\n" ); -#endif - if( v2 == v2last ) { -#ifdef DEBUG - _glu_dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 1; - } - } else { -#ifdef DEBUG - _glu_dprintf( "case cd\n" ); -#endif - if( v1next->param[1] < v2next->param[1] ) - return 1; - else if( v1next->param[1] > v2next->param[1] ) - return 0; - else { - v2 = v2next++; -#ifdef DEBUG - _glu_dprintf( "incr\n" ); -#endif - if( v2 == v2last ) { -#ifdef DEBUG - _glu_dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - } - } -} - -int -Subdivider::ccwTurn_tr( Arc_ptr j1, Arc_ptr j2 ) // dir = 1 -{ - register TrimVertex *v1 = &j1->pwlArc->pts[j1->pwlArc->npts-1]; - register TrimVertex *v1last = &j1->pwlArc->pts[0]; - register TrimVertex *v2 = &j2->pwlArc->pts[0]; - register TrimVertex *v2last = &j2->pwlArc->pts[j2->pwlArc->npts-1]; - register TrimVertex *v1next = v1-1; - register TrimVertex *v2next = v2+1; - int sgn; - - assert( v1 != v1last ); - assert( v2 != v2last ); - -#ifndef NDEBUG - _glu_dprintf( "arc_ccw_turn, p = %d\n", 1 ); -#endif - - // the arcs lie on the line (1 == v1->param[1]) - if( v1->param[1] == v1next->param[1] && v2->param[1] == v2next->param[1] ) - return 0; - - if( v2next->param[1] < v2->param[1] || v1next->param[1] < v1->param[1] ) - ::mylongjmp( jumpbuffer, 28 ); - - if( v1->param[0] < v2->param[0] ) - return 1; - else if( v1->param[0] > v2->param[0] ) - return 0; - - while( 1 ) { - if( v1next->param[1] < v2next->param[1] ) { -#ifndef NDEBUG - _glu_dprintf( "case a\n" ); -#endif - assert( v1->param[1] <= v1next->param[1] ); - assert( v2->param[1] <= v1next->param[1] ); - switch( bbox( v2, v2next, v1next, 0 ) ) { - case -1: - return 1; - case 0: - sgn = ccw( v1next, v2, v2next ); - if( sgn != -1 ) { - return sgn; - } else { -#ifdef DEBUG - _glu_dprintf( "decr\n" ); -#endif - v1 = v1next--; - if( v1 == v1last ) { -#ifdef DEBUG - _glu_dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 0; - } - } else if( v1next->param[1] > v2next->param[1] ) { -#ifndef NDEBUG - _glu_dprintf( "case b\n" ); -#endif - assert( v1->param[1] <= v2next->param[1] ); - assert( v2->param[1] <= v2next->param[1] ); - switch( bbox( v1, v1next, v2next, 0 ) ) { - case -1: - return 0; - case 0: - sgn = ccw( v1next, v1, v2next ); - if( sgn != -1 ) { - return sgn; - } else { -#ifdef DEBUG - _glu_dprintf( "incr\n" ); -#endif - v2 = v2next++; - if( v2 == v2last ) { -#ifdef DEBUG - _glu_dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 1; - } - } else { -#ifdef DEBUG - _glu_dprintf( "case ab\n" ); -#endif - if( v1next->param[0] < v2next->param[0] ) - return 1; - else if( v1next->param[0] > v2next->param[0] ) - return 0; - else { -#ifdef DEBUG - _glu_dprintf( "incr\n" ); -#endif - v2 = v2next++; - if( v2 == v2last ) { -#ifdef DEBUG - _glu_dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - } - } -} - -int -Subdivider::ccwTurn_tl( Arc_ptr j1, Arc_ptr j2 ) -{ - register TrimVertex *v1 = &j1->pwlArc->pts[j1->pwlArc->npts-1]; - register TrimVertex *v1last = &j1->pwlArc->pts[0]; - register TrimVertex *v2 = &j2->pwlArc->pts[0]; - register TrimVertex *v2last = &j2->pwlArc->pts[j2->pwlArc->npts-1]; - register TrimVertex *v1next = v1-1; - register TrimVertex *v2next = v2+1; - int sgn; - - assert( v1 != v1last ); - assert( v2 != v2last ); - -#ifndef NDEBUG - _glu_dprintf( "arc_ccw_turn, p = %d\n", 1 ); -#endif - - // the arcs lie on the line (1 == v1->param[1]) - if( v1->param[1] == v1next->param[1] && v2->param[1] == v2next->param[1] ) - return 0; - - if( v2next->param[1] > v2->param[1] || v1next->param[1] > v1->param[1] ) - ::mylongjmp( jumpbuffer, 28 ); - - if( v1->param[0] < v2->param[0] ) - return 0; - else if( v1->param[0] > v2->param[0] ) - return 1; - - while( 1 ) { - if( v1next->param[1] > v2next->param[1] ) { -#ifndef NDEBUG - _glu_dprintf( "case c\n" ); -#endif - assert( v1->param[1] >= v1next->param[1] ); - assert( v2->param[1] >= v1next->param[1] ); - switch( bbox( v2next, v2, v1next, 0 ) ) { - case -1: - return 0; - case 0: - sgn = ccw( v1next, v2, v2next ); - if( sgn != -1 ) - return sgn; - else { - v1 = v1next--; -#ifdef DEBUG - _glu_dprintf( "decr\n" ); -#endif - if( v1 == v1last ) { -#ifdef DEBUG - _glu_dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 1; - } - } else if( v1next->param[1] < v2next->param[1] ) { -#ifndef NDEBUG - _glu_dprintf( "case d\n" ); - assert( v1->param[1] >= v2next->param[1] ); - assert( v2->param[1] >= v2next->param[1] ); -#endif - switch( bbox( v1next, v1, v2next, 0 ) ) { - case -1: - return 1; - case 0: - sgn = ccw( v1next, v1, v2next ); - if( sgn != -1 ) - return sgn; - else { - v2 = v2next++; -#ifdef DEBUG - _glu_dprintf( "incr\n" ); -#endif - if( v2 == v2last ) { -#ifdef DEBUG - _glu_dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 0; - } - } else { -#ifdef DEBUG - _glu_dprintf( "case cd\n" ); -#endif - if( v1next->param[0] < v2next->param[0] ) - return 0; - else if( v1next->param[0] > v2next->param[0] ) - return 1; - else { - v2 = v2next++; -#ifdef DEBUG - _glu_dprintf( "incr\n" ); -#endif - if( v2 == v2last ) { -#ifdef DEBUG - _glu_dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - } - } -} - - -#ifndef NDEBUG -int -Subdivider::bbox( register REAL sa, register REAL sb, register REAL sc, - register REAL ta, register REAL tb, register REAL tc ) -#else -int -Subdivider::bbox( register REAL sa, register REAL sb, register REAL sc, - register REAL , register REAL , register REAL ) -#endif -{ -#ifndef NDEBUG - assert( tc >= ta ); - assert( tc <= tb ); -#endif - - if( sa < sb ) { - if( sc <= sa ) { - return -1; - } else if( sb <= sc ) { - return 1; - } else { - return 0; - } - } else if( sa > sb ) { - if( sc >= sa ) { - return 1; - } else if( sb >= sc ) { - return -1; - } else { - return 0; - } - } else { - if( sc > sa ) { - return 1; - } else if( sb > sc ) { - return -1; - } else { - return 0; - } - } -} - -/*---------------------------------------------------------------------------- - * ccw - determine how three points are oriented by computing their - * determinant. - * Return 1 if the vertices are ccw oriented, - * 0 if they are cw oriented, or - * -1 if the computation is ill-conditioned. - *---------------------------------------------------------------------------- - */ -int -Subdivider::ccw( TrimVertex *a, TrimVertex *b, TrimVertex *c ) -{ - REAL d = det3( a, b, c ); - if( glu_abs(d) < 0.0001 ) return -1; - return (d < 0.0) ? 0 : 1; -} diff --git a/src/glu/sgi/libnurbs/internals/coveandtiler.cc b/src/glu/sgi/libnurbs/internals/coveandtiler.cc deleted file mode 100644 index ca5bf36b363..00000000000 --- a/src/glu/sgi/libnurbs/internals/coveandtiler.cc +++ /dev/null @@ -1,440 +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. -*/ - -/* - * coveandtiler.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "coveandtiler.h" -#include "gridvertex.h" -#include "gridtrimvertex.h" -#include "uarray.h" -#include "backend.h" - - -const int CoveAndTiler::MAXSTRIPSIZE = 1000; - -CoveAndTiler::CoveAndTiler( Backend& b ) - : backend( b ) -{ } - -CoveAndTiler::~CoveAndTiler( void ) -{ } - -inline void -CoveAndTiler::output( GridVertex &gv ) -{ - backend.tmeshvert( &gv ); -} - -inline void -CoveAndTiler::output( TrimVertex *tv ) -{ - backend.tmeshvert( tv ); -} - -inline void -CoveAndTiler::output( GridTrimVertex& g ) -{ - backend.tmeshvert( &g ); -} - -void -CoveAndTiler::coveAndTile( void ) -{ - long ustart = (top.ustart >= bot.ustart) ? top.ustart : bot.ustart; - long uend = (top.uend <= bot.uend) ? top.uend : bot.uend; - if( ustart <= uend ) { - tile( bot.vindex, ustart, uend ); - if( top.ustart >= bot.ustart ) - coveUpperLeft(); - else - coveLowerLeft(); - - if( top.uend <= bot.uend ) - coveUpperRight(); - else - coveLowerRight(); - } else { - TrimVertex blv, tlv, *bl, *tl; - GridTrimVertex bllv, tllv; - TrimVertex *lf = left.first(); - TrimVertex *ll = left.last(); - if( lf->param[0] >= ll->param[0] ) { - blv.param[0] = lf->param[0]; - blv.param[1] = ll->param[1]; - blv.nuid = 0; // XXX - assert( blv.param[1] == bot.vval ); - bl = &blv; - tl = lf; - tllv.set( lf ); - if( ll->param[0] > uarray.uarray[top.ustart-1] ) { - bllv.set( ll ); - assert( ll->param[0] <= uarray.uarray[bot.ustart] ); - } else { - bllv.set( top.ustart-1, bot.vindex ); - } - coveUpperLeftNoGrid( bl ); - } else { - tlv.param[0] = ll->param[0]; - tlv.param[1] = lf->param[1]; - tlv.nuid = 0; // XXX - assert( tlv.param[1] == top.vval ); - tl = &tlv; - bl = ll; - bllv.set( ll ); - if( lf->param[0] > uarray.uarray[bot.ustart-1] ) { - assert( lf->param[0] <= uarray.uarray[bot.ustart] ); - tllv.set( lf ); - } else { - tllv.set( bot.ustart-1, top.vindex ); - } - coveLowerLeftNoGrid( tl ); - } - - TrimVertex brv, trv, *br, *tr; - GridTrimVertex brrv, trrv; - TrimVertex *rf = right.first(); - TrimVertex *rl = right.last(); - - if( rf->param[0] <= rl->param[0] ) { - brv.param[0] = rf->param[0]; - brv.param[1] = rl->param[1]; - brv.nuid = 0; // XXX - assert( brv.param[1] == bot.vval ); - br = &brv; - tr = rf; - trrv.set( rf ); - if( rl->param[0] < uarray.uarray[top.uend+1] ) { - assert( rl->param[0] >= uarray.uarray[top.uend] ); - brrv.set( rl ); - } else { - brrv.set( top.uend+1, bot.vindex ); - } - coveUpperRightNoGrid( br ); - } else { - trv.param[0] = rl->param[0]; - trv.param[1] = rf->param[1]; - trv.nuid = 0; // XXX - assert( trv.param[1] == top.vval ); - tr = &trv; - br = rl; - brrv.set( rl ); - if( rf->param[0] < uarray.uarray[bot.uend+1] ) { - assert( rf->param[0] >= uarray.uarray[bot.uend] ); - trrv.set( rf ); - } else { - trrv.set( bot.uend+1, top.vindex ); - } - coveLowerRightNoGrid( tr ); - } - - backend.bgntmesh( "doit" ); - output(trrv); - output(tllv); - output( tr ); - output( tl ); - output( br ); - output( bl ); - output(brrv); - output(bllv); - backend.endtmesh(); - } -} - -void -CoveAndTiler::tile( long vindex, long ustart, long uend ) -{ - long numsteps = uend - ustart; - - if( numsteps == 0 ) return; - - if( numsteps > MAXSTRIPSIZE ) { - long umid = ustart + (uend - ustart) / 2; - tile( vindex, ustart, umid ); - tile( vindex, umid, uend ); - } else { - backend.surfmesh( ustart, vindex-1, numsteps, 1 ); - } -} - -void -CoveAndTiler::coveUpperRight( void ) -{ - GridVertex tgv( top.uend, top.vindex ); - GridVertex gv( top.uend, bot.vindex ); - - right.first(); - backend.bgntmesh( "coveUpperRight" ); - output( right.next() ); - output( tgv ); - backend.swaptmesh(); - output( gv ); - coveUR(); - backend.endtmesh(); -} - -void -CoveAndTiler::coveUpperRightNoGrid( TrimVertex* br ) -{ - backend.bgntmesh( "coveUpperRight" ); - output( right.first() ); - output( right.next() ); - backend.swaptmesh(); - output( br ); - coveUR(); - backend.endtmesh(); -} - -void -CoveAndTiler::coveUR( ) -{ - GridVertex gv( top.uend, bot.vindex ); - TrimVertex *vert = right.next(); - if( vert == NULL ) return; - - assert( vert->param[0] >= uarray.uarray[gv.gparam[0]] ); - - if( gv.nextu() >= bot.uend ) { - for( ; vert; vert = right.next() ) { - output( vert ); - backend.swaptmesh(); - } - } else while( 1 ) { - if( vert->param[0] < uarray.uarray[gv.gparam[0]] ) { - output( vert ); - backend.swaptmesh(); - vert = right.next(); - if( vert == NULL ) break; - } else { - backend.swaptmesh(); - output( gv ); - if( gv.nextu() == bot.uend ) { - for( ; vert; vert = right.next() ) { - output( vert ); - backend.swaptmesh(); - } - break; - } - } - } -} - -void -CoveAndTiler::coveUpperLeft( void ) -{ - GridVertex tgv( top.ustart, top.vindex ); - GridVertex gv( top.ustart, bot.vindex ); - - left.first(); - backend.bgntmesh( "coveUpperLeft" ); - output( tgv ); - output( left.next() ); - output( gv ); - backend.swaptmesh(); - coveUL(); - backend.endtmesh(); -} - -void -CoveAndTiler::coveUpperLeftNoGrid( TrimVertex* bl ) -{ - backend.bgntmesh( "coveUpperLeftNoGrid" ); - output( left.first() ); - output( left.next() ); - output( bl ); - backend.swaptmesh(); - coveUL(); - backend.endtmesh(); -} - -void -CoveAndTiler::coveUL() -{ - GridVertex gv( top.ustart, bot.vindex ); - TrimVertex *vert = left.next(); - if( vert == NULL ) return; - assert( vert->param[0] <= uarray.uarray[gv.gparam[0]] ); - - if( gv.prevu() <= bot.ustart ) { - for( ; vert; vert = left.next() ) { - backend.swaptmesh(); - output( vert ); - } - } else while( 1 ) { - if( vert->param[0] > uarray.uarray[gv.gparam[0]] ) { - backend.swaptmesh(); - output( vert ); - vert = left.next(); - if( vert == NULL ) break; - } else { - output( gv ); - backend.swaptmesh(); - if( gv.prevu() == bot.ustart ) { - for( ; vert; vert = left.next() ) { - backend.swaptmesh(); - output( vert ); - } - break; - } - } - } -} - -void -CoveAndTiler::coveLowerLeft( void ) -{ - GridVertex bgv( bot.ustart, bot.vindex ); - GridVertex gv( bot.ustart, top.vindex ); - - left.last(); - backend.bgntmesh( "coveLowerLeft" ); - output( left.prev() ); - output( bgv ); - backend.swaptmesh(); - output( gv ); - coveLL(); - backend.endtmesh(); -} - -void -CoveAndTiler::coveLowerLeftNoGrid( TrimVertex* tl ) -{ - backend.bgntmesh( "coveLowerLeft" ); - output( left.last() ); - output( left.prev() ); - backend.swaptmesh(); - output( tl ); - coveLL( ); - backend.endtmesh(); -} - -void -CoveAndTiler::coveLL() -{ - GridVertex gv( bot.ustart, top.vindex ); - TrimVertex *vert = left.prev(); - if( vert == NULL ) return; - assert( vert->param[0] <= uarray.uarray[gv.gparam[0]] ); - - if( gv.prevu() <= top.ustart ) { - for( ; vert; vert = left.prev() ) { - output( vert ); - backend.swaptmesh(); - } - } else while( 1 ) { - if( vert->param[0] > uarray.uarray[gv.gparam[0]] ){ - output( vert ); - backend.swaptmesh(); - vert = left.prev(); - if( vert == NULL ) break; - } else { - backend.swaptmesh(); - output( gv ); - if( gv.prevu() == top.ustart ) { - for( ; vert; vert = left.prev() ) { - output( vert ); - backend.swaptmesh(); - } - break; - } - } - } -} - -void -CoveAndTiler::coveLowerRight( void ) -{ - GridVertex bgv( bot.uend, bot.vindex ); - GridVertex gv( bot.uend, top.vindex ); - - right.last(); - backend.bgntmesh( "coveLowerRight" ); - output( bgv ); - output( right.prev() ); - output( gv ); - backend.swaptmesh(); - coveLR(); - backend.endtmesh( ); -} - -void -CoveAndTiler::coveLowerRightNoGrid( TrimVertex* tr ) -{ - backend.bgntmesh( "coveLowerRIght" ); - output( right.last() ); - output( right.prev() ); - output( tr ); - backend.swaptmesh(); - coveLR(); - backend.endtmesh(); -} - -void -CoveAndTiler::coveLR( ) -{ - GridVertex gv( bot.uend, top.vindex ); - TrimVertex *vert = right.prev(); - if( vert == NULL ) return; - assert( vert->param[0] >= uarray.uarray[gv.gparam[0]] ); - - if( gv.nextu() >= top.uend ) { - for( ; vert; vert = right.prev() ) { - backend.swaptmesh(); - output( vert ); - } - } else while( 1 ) { - if( vert->param[0] < uarray.uarray[gv.gparam[0]] ) { - backend.swaptmesh(); - output( vert ); - vert = right.prev(); - if( vert == NULL ) break; - } else { - output( gv ); - backend.swaptmesh(); - if( gv.nextu() == top.uend ) { - for( ; vert; vert = right.prev() ) { - backend.swaptmesh(); - output( vert ); - } - break; - } - } - } -} - diff --git a/src/glu/sgi/libnurbs/internals/coveandtiler.h b/src/glu/sgi/libnurbs/internals/coveandtiler.h deleted file mode 100644 index d454202e6d3..00000000000 --- a/src/glu/sgi/libnurbs/internals/coveandtiler.h +++ /dev/null @@ -1,72 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * coveandtiler.h - * - */ - -#ifndef __glucoveandtiler_h -#define __glucoveandtiler_h - -#include "trimregion.h" -#include "trimvertex.h" -#include "gridvertex.h" - -class Backend; -class GridTrimVertex; - -class CoveAndTiler : virtual public TrimRegion { -public: - CoveAndTiler( Backend& ); - ~CoveAndTiler( void ); - void coveAndTile( void ); -private: - Backend& backend; - static const int MAXSTRIPSIZE; - void tile( long, long, long ); - void coveLowerLeft( void ); - void coveLowerRight( void ); - void coveUpperLeft( void ); - void coveUpperRight( void ); - void coveUpperLeftNoGrid( TrimVertex * ); - void coveUpperRightNoGrid( TrimVertex * ); - void coveLowerLeftNoGrid( TrimVertex * ); - void coveLowerRightNoGrid( TrimVertex * ); - void coveLL( void ); - void coveLR( void ); - void coveUL( void ); - void coveUR( void ); - inline void output( GridTrimVertex& ); - inline void output( GridVertex& ); - inline void output( TrimVertex* ); -}; - -#endif /* __glucoveandtiler_h */ diff --git a/src/glu/sgi/libnurbs/internals/curve.cc b/src/glu/sgi/libnurbs/internals/curve.cc deleted file mode 100644 index b7c4d4a9c7c..00000000000 --- a/src/glu/sgi/libnurbs/internals/curve.cc +++ /dev/null @@ -1,204 +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. -*/ - -/* - * curve.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "mymath.h" -#include "curve.h" -#include "mapdesc.h" -#include "types.h" -#include "quilt.h" -#include "nurbsconsts.h" - -/*-------------------------------------------------------------------------- - * Curve::Curve - copy curve from quilt and transform control points - *-------------------------------------------------------------------------- - */ - -Curve::Curve( Quilt_ptr geo, REAL pta, REAL ptb, Curve *c ) -{ - mapdesc = geo->mapdesc; - next = c; - needsSampling = mapdesc->isRangeSampling() ? 1 : 0; - cullval = mapdesc->isCulling() ? CULL_ACCEPT : CULL_TRIVIAL_ACCEPT; - order = geo->qspec[0].order; - stride = MAXCOORDS; - for( int i = 0; i < MAXORDER * MAXCOORDS; i++ ) { - cpts[i] = 0; - spts[i] = 0; - } - stepsize = 0; - minstepsize = 0; - - REAL *ps = geo->cpts; - Quiltspec_ptr qs = geo->qspec; - ps += qs->offset; - ps += qs->index * qs->order * qs->stride; - - if( needsSampling ) - mapdesc->xformSampling( ps, qs->order, qs->stride, spts, stride ); - - if( cullval == CULL_ACCEPT ) - mapdesc->xformCulling( ps, qs->order, qs->stride, cpts, stride ); - - /* set untrimmed curve range */ - range[0] = qs->breakpoints[qs->index]; - range[1] = qs->breakpoints[qs->index+1]; - range[2] = range[1] - range[0]; - - if( range[0] != pta ) { - Curve lower( *this, pta, 0 ); - lower.next = next; - *this = lower; - } - if( range[1] != ptb ) { - Curve lower( *this, ptb, 0 ); - } -} - -/*-------------------------------------------------------------------------- - * Curve::Curve - subdivide a curve along an isoparametric line - *-------------------------------------------------------------------------- - */ - -Curve::Curve( Curve& upper, REAL value, Curve *c ) -{ - Curve &lower = *this; - - lower.next = c; - lower.mapdesc = upper.mapdesc; - lower.needsSampling = upper.needsSampling; - lower.order = upper.order; - lower.stride = upper.stride; - lower.cullval = upper.cullval; - - REAL d = (value - upper.range[0]) / upper.range[2]; - - if( needsSampling ) - mapdesc->subdivide( upper.spts, lower.spts, d, upper.stride, upper.order ); - - if( cullval == CULL_ACCEPT ) - mapdesc->subdivide( upper.cpts, lower.cpts, d, upper.stride, upper.order ); - - lower.range[0] = upper.range[0]; - lower.range[1] = value; - lower.range[2] = value - upper.range[0]; - upper.range[0] = value; - upper.range[2] = upper.range[1] - value; -} - - -/*-------------------------------------------------------------------------- - * Curve::clamp - clamp the sampling rate to a given maximum - *-------------------------------------------------------------------------- - */ - -void -Curve::clamp( void ) -{ - if( stepsize < minstepsize ) - stepsize = mapdesc->clampfactor * minstepsize; -} - -void -Curve::setstepsize( REAL max ) -{ - stepsize = ( max >= 1.0 ) ? (range[2] / max) : range[2]; - minstepsize = stepsize; -} - -void -Curve::getstepsize( void ) -{ - minstepsize= 0; - - if( mapdesc->isConstantSampling() ) { - // fixed number of samples per patch in each direction - // maxrate is number of s samples per patch - setstepsize( mapdesc->maxrate ); - } else if( mapdesc->isDomainSampling() ) { - // maxrate is number of s samples per unit s length of domain - setstepsize( mapdesc->maxrate * range[2] ); - } else { - // upper bound on path length between sample points - - assert( order <= MAXORDER ); - - /* points have been transformed, therefore they are homogeneous */ - REAL tmp[MAXORDER][MAXCOORDS]; - const int tstride = sizeof(tmp[0]) / sizeof(REAL); - int val = mapdesc->project( spts, stride, &tmp[0][0], tstride, order ); - - if( val == 0 ) { - // control points cross infinity, therefore derivatives are undefined - setstepsize( mapdesc->maxrate ); - } else { - REAL t = mapdesc->getProperty( N_PIXEL_TOLERANCE ); - if( mapdesc->isParametricDistanceSampling() ) { - REAL d = mapdesc->calcPartialVelocity( &tmp[0][0], tstride, order, 2, range[2] ); - stepsize = (d > 0.0) ? sqrtf( 8.0 * t / d ) : range[2]; - minstepsize = ( mapdesc->maxrate > 0.0 ) ? (range[2] / mapdesc->maxrate) : 0.0; - } else if( mapdesc->isPathLengthSampling() ) { - // t is upper bound on path (arc) length - REAL d = mapdesc->calcPartialVelocity( &tmp[0][0], tstride, order, 1, range[2] ); - stepsize = ( d > 0.0 ) ? (t / d) : range[2]; - minstepsize = ( mapdesc->maxrate > 0.0 ) ? (range[2] / mapdesc->maxrate) : 0.0; - } else { - // control points cross infinity, therefore partials are undefined - setstepsize( mapdesc->maxrate ); - } - } - } -} - -int -Curve::needsSamplingSubdivision( void ) -{ - return ( stepsize < minstepsize ) ? 1 : 0; -} - -int -Curve::cullCheck( void ) -{ - if( cullval == CULL_ACCEPT ) - cullval = mapdesc->cullCheck( cpts, order, stride ); - return cullval; -} - diff --git a/src/glu/sgi/libnurbs/internals/curve.h b/src/glu/sgi/libnurbs/internals/curve.h deleted file mode 100644 index 0da81c72168..00000000000 --- a/src/glu/sgi/libnurbs/internals/curve.h +++ /dev/null @@ -1,70 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * curve.h - * - */ - -#ifndef __glucurve_h_ -#define __glucurve_h_ - -#include "types.h" -#include "defines.h" - -class Mapdesc; -class Quilt; - - -class Curve { -public: -friend class Curvelist; - Curve( Quilt *, REAL, REAL, Curve * ); - Curve( Curve&, REAL, Curve * ); - Curve * next; -private: - Mapdesc * mapdesc; - int stride; - int order; - int cullval; - int needsSampling; - REAL cpts[MAXORDER*MAXCOORDS]; - REAL spts[MAXORDER*MAXCOORDS]; - REAL stepsize; - REAL minstepsize; - REAL range[3]; - - void clamp( void ); - void setstepsize( REAL ); - void getstepsize( void ); - int cullCheck( void ); - int needsSamplingSubdivision( void ); -}; -#endif /* __glucurve_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/curvelist.cc b/src/glu/sgi/libnurbs/internals/curvelist.cc deleted file mode 100644 index 8f2ee4678d2..00000000000 --- a/src/glu/sgi/libnurbs/internals/curvelist.cc +++ /dev/null @@ -1,112 +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. -*/ - -/* - * curvelist.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "quilt.h" -#include "curvelist.h" -#include "curve.h" -#include "types.h" - -Curvelist::Curvelist( Quilt *quilts, REAL pta, REAL ptb ) -{ - curve = 0; - for( Quilt *q = quilts; q; q = q->next ) - curve = new Curve( q, pta, ptb, curve ); - range[0] = pta; - range[1] = ptb; - range[2] = ptb - pta; - needsSubdivision = 0; - stepsize = 0; -} - -Curvelist::Curvelist( Curvelist &upper, REAL value ) -{ - curve = 0; - for( Curve *c = upper.curve; c; c = c->next ) - curve = new Curve( *c, value, curve ); - - range[0] = upper.range[0]; - range[1] = value; - range[2] = value - upper.range[0]; - upper.range[0] = value; - upper.range[2] = upper.range[1] - value; - needsSubdivision = 0; - stepsize = 0; -} - -Curvelist::~Curvelist() -{ - while( curve ) { - Curve *c = curve; - curve = curve->next; - delete c; - } -} - -int -Curvelist::cullCheck( void ) -{ - for( Curve *c = curve; c; c = c->next ) - if( c->cullCheck() == CULL_TRIVIAL_REJECT ) - return CULL_TRIVIAL_REJECT; - return CULL_ACCEPT; -} - -void -Curvelist::getstepsize( void ) -{ - stepsize = range[2]; - Curve *c; - for( c = curve; c; c = c->next ) { - c->getstepsize(); - c->clamp(); - stepsize = ((c->stepsize < stepsize) ? c->stepsize : stepsize); - if( c->needsSamplingSubdivision() ) break; - } - needsSubdivision = ( c ) ? 1 : 0; -} - -int -Curvelist::needsSamplingSubdivision( void ) -{ - return needsSubdivision; -} - diff --git a/src/glu/sgi/libnurbs/internals/curvelist.h b/src/glu/sgi/libnurbs/internals/curvelist.h deleted file mode 100644 index 733a5115d01..00000000000 --- a/src/glu/sgi/libnurbs/internals/curvelist.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * curvelist.h - * - */ - -#ifndef __glucurvelist_h_ -#define __glucurvelist_h_ - -#include "types.h" -#include "defines.h" - -class Mapdesc; -class Quilt; -class Curve; - -class Curvelist -{ -friend class Subdivider; -public: - Curvelist( Quilt *, REAL, REAL ); - Curvelist( Curvelist &, REAL ); - ~Curvelist( void ); - int cullCheck( void ); - void getstepsize( void ); - int needsSamplingSubdivision(); -private: - Curve *curve; - float range[3]; - int needsSubdivision; - float stepsize; -}; -#endif /* __glucurvelist_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/curvesub.cc b/src/glu/sgi/libnurbs/internals/curvesub.cc deleted file mode 100644 index 91f2ca8ce8e..00000000000 --- a/src/glu/sgi/libnurbs/internals/curvesub.cc +++ /dev/null @@ -1,102 +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. -*/ - -/* - * curvesub.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "subdivider.h" -#include "renderhints.h" -#include "backend.h" -#include "quilt.h" -#include "curvelist.h" -#include "nurbsconsts.h" - -/*-------------------------------------------------------------------------- - * drawCurves - main curve rendering entry point - *-------------------------------------------------------------------------- - */ - -void -Subdivider::drawCurves( void ) -{ - REAL from[1], to[1]; - Flist bpts; - qlist->getRange( from, to, bpts ); - - renderhints.init( ); - - backend.bgncurv(); - for( int i=bpts.start; i<bpts.end-1; i++ ) { - REAL pta, ptb; - pta = bpts.pts[i]; - ptb = bpts.pts[i+1]; - - qlist->downloadAll( &pta, &ptb, backend ); - - Curvelist curvelist( qlist, pta, ptb ); - samplingSplit( curvelist, renderhints.maxsubdivisions ); - } - backend.endcurv(); -} - - -/*-------------------------------------------------------------------------- - * samplingSplit - recursively subdivide patch, cull check each subpatch - *-------------------------------------------------------------------------- - */ - -void -Subdivider::samplingSplit( Curvelist& curvelist, int subdivisions ) -{ - if( curvelist.cullCheck() == CULL_TRIVIAL_REJECT ) return; - - curvelist.getstepsize(); - - if( curvelist.needsSamplingSubdivision() && (subdivisions > 0) ) { - REAL mid = ( curvelist.range[0] + curvelist.range[1] ) * 0.5; - Curvelist lowerlist( curvelist, mid ); - samplingSplit( lowerlist, subdivisions-1 ); // lower - samplingSplit( curvelist, subdivisions-1 ); // upper - } else { - long nu = 1 + ((long) (curvelist.range[2] / curvelist.stepsize)); - backend.curvgrid( curvelist.range[0], curvelist.range[1], nu ); - backend.curvmesh( 0, nu ); - } -} - diff --git a/src/glu/sgi/libnurbs/internals/dataTransform.cc b/src/glu/sgi/libnurbs/internals/dataTransform.cc deleted file mode 100644 index 55c0fbb159a..00000000000 --- a/src/glu/sgi/libnurbs/internals/dataTransform.cc +++ /dev/null @@ -1,209 +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 <stdlib.h> -#include <stdio.h> -#include "glimports.h" -#include "myassert.h" -#include "nurbsconsts.h" -#include "trimvertex.h" -#include "dataTransform.h" - -extern directedLine* arcLoopToDLineLoop(Arc_ptr loop); - -#if 0 // UNUSED -static directedLine* copy_loop(Arc_ptr loop, Real2* vertArray, int& index, directedLine dline_buf[], sampledLine sline_buf[], int& index_dline) -{ - directedLine *ret; - int old_index = index; - int i = index; - int j; - for(j=0; j<loop->pwlArc->npts-1; j++, i++) - { - vertArray[i][0] = loop->pwlArc->pts[j].param[0]; - vertArray[i][1] = loop->pwlArc->pts[j].param[1]; - } - loop->clearmark(); - - for(Arc_ptr jarc = loop->next; jarc != loop; jarc=jarc->next) - { - for(j=0; j<jarc->pwlArc->npts-1; j++, i++) - { - vertArray[i][0] = jarc->pwlArc->pts[j].param[0]; - vertArray[i][1] = jarc->pwlArc->pts[j].param[1]; - } - jarc->clearmark(); - } - //copy the first vertex again - vertArray[i][0] = loop->pwlArc->pts[0].param[0]; - vertArray[i][1] = loop->pwlArc->pts[0].param[1]; - i++; - index=i; - - directedLine* dline; - sampledLine* sline; - sline = &sline_buf[index_dline]; - dline = &dline_buf[index_dline]; - sline->init(2, &vertArray[old_index]); - dline->init(INCREASING, sline); - ret = dline; - index_dline++; - - for(i=old_index+1; i<= index-2; i++) - { - sline = &sline_buf[index_dline]; - dline = &dline_buf[index_dline]; - sline->init(2, &vertArray[i]); - dline->init(INCREASING, sline); - ret->insert(dline); - index_dline++; - } - return ret; -} -#endif - -#if 0 // UNUSED -static int num_edges(Bin& bin) -{ - int sum=0; - for(Arc_ptr jarc = bin.firstarc(); jarc; jarc=bin.nextarc()) - sum += jarc->pwlArc->npts-1; - return sum; -} -#endif - -/* -directedLine* bin_to_DLineLoops(Bin& bin) -{ - directedLine *ret=NULL; - directedLine *temp; - - int numedges = num_edges(bin); - directedLine* dline_buf = new directedLine[numedges]; //not work for N32? - sampledLine* sline_buf=new sampledLine[numedges]; - - Real2* vertArray = new Real2[numedges*2]; - int index = 0; - int index_dline = 0; - bin.markall(); - - for(Arc_ptr jarc = bin.firstarc(); jarc; jarc=bin.nextarc()) - { - if(jarc->ismarked()) - { - assert(jarc->check() != 0); - Arc_ptr jarchead = jarc; - do { - jarc->clearmark(); - jarc = jarc->next; - } while(jarc != jarchead); - temp=copy_loop(jarchead, vertArray, index, dline_buf, sline_buf, index_dline); - ret = temp->insertPolygon(ret); - } - } - - return ret; -} -*/ - - -directedLine* bin_to_DLineLoops(Bin& bin) -{ - directedLine *ret=NULL; - directedLine *temp; - bin.markall(); - for(Arc_ptr jarc=bin.firstarc(); jarc; jarc=bin.nextarc()){ - if(jarc->ismarked()) { - assert(jarc->check() != 0); - Arc_ptr jarchead = jarc; - do { - jarc->clearmark(); - jarc = jarc->next; - } while(jarc != jarchead); - temp = arcLoopToDLineLoop(jarc); - ret = temp->insertPolygon(ret); - } - } - return ret; -} - -directedLine* o_pwlcurve_to_DLines(directedLine* original, O_pwlcurve* pwl) -{ - directedLine* ret = original; - for(Int i=0; i<pwl->npts-1; i++) - { - sampledLine* sline = new sampledLine(2); - sline->setPoint(0, pwl->pts[i].param); - sline->setPoint(1, pwl->pts[i+1].param); - directedLine* dline = new directedLine(INCREASING, sline); - if(ret == NULL) - ret = dline; - else - ret->insert(dline); - } - return ret; -} - -directedLine* o_curve_to_DLineLoop(O_curve* cur) -{ - directedLine *ret; - if(cur == NULL) - return NULL; - assert(cur->curvetype == ct_pwlcurve); - ret = o_pwlcurve_to_DLines(NULL, cur->curve.o_pwlcurve); - for(O_curve* temp = cur->next; temp != NULL; temp = temp->next) - { - assert(temp->curvetype == ct_pwlcurve); - ret = o_pwlcurve_to_DLines(ret, temp->curve.o_pwlcurve); - } - return ret; -} - -directedLine* o_trim_to_DLineLoops(O_trim* trim) -{ - O_trim* temp; - directedLine *ret; - if(trim == NULL) - return NULL; - ret = o_curve_to_DLineLoop(trim->o_curve); - - for(temp=trim->next; temp != NULL; temp = temp->next) - { - ret = ret->insertPolygon(o_curve_to_DLineLoop(temp->o_curve)); - } - return ret; -} diff --git a/src/glu/sgi/libnurbs/internals/dataTransform.h b/src/glu/sgi/libnurbs/internals/dataTransform.h deleted file mode 100644 index 7898df754d7..00000000000 --- a/src/glu/sgi/libnurbs/internals/dataTransform.h +++ /dev/null @@ -1,59 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ -/* -*/ - -#ifndef _DATA_TRANSFORM_H -#define _DATA_TRANSFORM_H - -#include "reader.h" -#include "directedLine.h" -#include "bin.h" -directedLine* bin_to_DLineLoops(Bin& bin); - -/*transform the pwlcurve into a number of directedline lines - *insert these directedlines into orignal which is supposed to be - *the part of the trimming loop obtained so far. - *return the updated trimkming loop. - */ -directedLine* o_pwlcurve_to_DLines(directedLine* original, O_pwlcurve* pwl); - -/*transform a trim loop (curve) into a directedLine loop - */ -directedLine* o_curve_to_DLineLoop(O_curve* curve); - -/*transform a list of trim loops (trim) into - *a list of polygons represented as directedLine*. - */ -directedLine* o_trim_to_DLineLoops(O_trim* trim); - - -#endif - diff --git a/src/glu/sgi/libnurbs/internals/defines.h b/src/glu/sgi/libnurbs/internals/defines.h deleted file mode 100644 index 32950d613ba..00000000000 --- a/src/glu/sgi/libnurbs/internals/defines.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * defines.h - * - */ - -#ifndef __gludefines_h_ -#define __gludefines_h_ - -/* culling constants */ -#define CULL_TRIVIAL_REJECT 0 -#define CULL_TRIVIAL_ACCEPT 1 -#define CULL_ACCEPT 2 - -/* maximum order of a B-Spline */ -#define MAXORDER 24 - -/* maximum dimension of any B-spline range space */ -#define MAXCOORDS 5 - -#endif /* __gludefines_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/displaylist.cc b/src/glu/sgi/libnurbs/internals/displaylist.cc deleted file mode 100644 index 48593c6371d..00000000000 --- a/src/glu/sgi/libnurbs/internals/displaylist.cc +++ /dev/null @@ -1,82 +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. -*/ - -/* - * displaylist.c++ - * - */ - -#include "glimports.h" -#include "mystdio.h" -#include "nurbstess.h" -#include "displaylist.h" - - -DisplayList::DisplayList( NurbsTessellator *_nt ) : - dlnodePool( sizeof( Dlnode ), 1, "dlnodepool" ) -{ - lastNode = &nodes; - nt = _nt; -} - -DisplayList::~DisplayList( void ) -{ - for( Dlnode *nextNode; nodes; nodes = nextNode ) { - nextNode = nodes->next; - if( nodes->cleanup != 0 ) (nt->*nodes->cleanup)( nodes->arg ); - //nodes->deleteMe(dlnodePool); - } -} - -void -DisplayList::play( void ) -{ - for( Dlnode *node = nodes; node; node = node->next ) - if( node->work != 0 ) (nt->*node->work)( node->arg ); -} - -void -DisplayList::endList( void ) -{ - *lastNode = 0; -} - -void -DisplayList::append( PFVS work, void *arg, PFVS cleanup ) -{ - Dlnode *node = new(dlnodePool) Dlnode( work, arg, cleanup ); - *lastNode = node; - lastNode = &(node->next); -} - diff --git a/src/glu/sgi/libnurbs/internals/displaylist.h b/src/glu/sgi/libnurbs/internals/displaylist.h deleted file mode 100644 index d009a42513e..00000000000 --- a/src/glu/sgi/libnurbs/internals/displaylist.h +++ /dev/null @@ -1,79 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * displaylist.h - * - */ - -#ifndef __gludisplaylist_h_ -#define __gludisplaylist_h_ - -#include "glimports.h" -#include "mysetjmp.h" -#include "mystdio.h" -#include "bufpool.h" - -class NurbsTessellator; - -typedef void (NurbsTessellator::*PFVS)( void * ); - -struct Dlnode : public PooledObj { - Dlnode( PFVS, void *, PFVS ); - PFVS work; - void * arg; - PFVS cleanup; - Dlnode * next; -}; - -inline -Dlnode::Dlnode( PFVS _work, void *_arg, PFVS _cleanup ) -{ - work = _work; - arg = _arg; - cleanup = _cleanup; - next = 0; -} - -class DisplayList { -public: - DisplayList( NurbsTessellator * ); - ~DisplayList( void ); - void play( void ); - void append( PFVS work, void *arg, PFVS cleanup ); - void endList( void ); -private: - Dlnode *nodes; - Pool dlnodePool; - Dlnode **lastNode; - NurbsTessellator *nt; -}; - -#endif /* __gludisplaylist_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/displaymode.h b/src/glu/sgi/libnurbs/internals/displaymode.h deleted file mode 100644 index 53968b2f1c9..00000000000 --- a/src/glu/sgi/libnurbs/internals/displaymode.h +++ /dev/null @@ -1,40 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ -/* -*/ - -#ifndef __gludisplaymode_h_ -#define __gludisplaymode_h_ - -#define N_MESHFILL 0 -#define N_MESHLINE 1 -#define N_MESHPOINT 2 - -#endif /* __gludisplaymode_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/flist.cc b/src/glu/sgi/libnurbs/internals/flist.cc deleted file mode 100644 index d3162b9f5f5..00000000000 --- a/src/glu/sgi/libnurbs/internals/flist.cc +++ /dev/null @@ -1,118 +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. -*/ - -/* - * flist.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "flist.h" - -/*---------------------------------------------------------------------------- - * Flist::Flist - initialize a REAL number array - *---------------------------------------------------------------------------- - */ -Flist::Flist( void ) -{ - npts = 0; - pts = 0; - start = end = 0; -} - -/*---------------------------------------------------------------------------- - * Flist::~Flist - free a REAL number array - *---------------------------------------------------------------------------- - */ -Flist::~Flist( void ) -{ - if( npts ) delete[] pts; -} - -void -Flist::add( REAL x ) -{ - pts[end++] = x; - assert( end <= npts ); -} - -/*---------------------------------------------------------------------------- - * Flist::filter - remove duplicate numbers from array - *---------------------------------------------------------------------------- - */ -void Flist::filter( void ) -{ - sorter.qsort( pts, end ); - start = 0; - - int j = 0; - for( int i = 1; i < end; i++ ) { - if( pts[i] == pts[i-j-1] ) - j++; - pts[i-j] = pts[i]; - } - end -= j; -} - -/*---------------------------------------------------------------------------- - * Flist::grow - ensure that array is large enough - *---------------------------------------------------------------------------- - */ -void Flist::grow( int maxpts ) -{ - if( npts < maxpts ) { - if( npts ) delete[] pts; - npts = 2 * maxpts; - pts = new REAL[npts]; - assert( pts != 0 ); - } - start = end = 0; -} - -/*---------------------------------------------------------------------------- - * Flist::taper - ignore head and tail of array - *---------------------------------------------------------------------------- - */ -void Flist::taper( REAL from, REAL to ) -{ - while( pts[start] != from ) - start++; - - while( pts[end-1] != to ) - end--; -} - - diff --git a/src/glu/sgi/libnurbs/internals/flist.h b/src/glu/sgi/libnurbs/internals/flist.h deleted file mode 100644 index 014273ebe51..00000000000 --- a/src/glu/sgi/libnurbs/internals/flist.h +++ /dev/null @@ -1,59 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * flist.h - * - */ - -#ifndef __gluflist_h_ -#define __gluflist_h_ - -#include "types.h" -#include "flistsorter.h" - -class Flist { -public: - REAL * pts; /* head of array */ - int npts; /* number of points in array */ - int start; /* first important point index */ - int end; /* last important point index */ - - Flist( void ); - ~Flist( void ); - void add( REAL x ); - void filter( void ); - void grow( int); - void taper( REAL , REAL ); -protected: - FlistSorter sorter; -}; - -#endif /* __gluflist_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/flistsorter.cc b/src/glu/sgi/libnurbs/internals/flistsorter.cc deleted file mode 100644 index d49bdea3e00..00000000000 --- a/src/glu/sgi/libnurbs/internals/flistsorter.cc +++ /dev/null @@ -1,81 +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. -*/ - -/* - * flistsorter.c++ - * - */ - -#include "glimports.h" -#include "flistsorter.h" - -FlistSorter::FlistSorter( void ) : Sorter( sizeof( REAL ) ) -{ -} - -void -FlistSorter::qsort( REAL *p, int n ) -{ - Sorter::qsort( (char *)p, n ); -} - -int -FlistSorter::qscmp( char *i, char *j ) -{ - REAL f0 = *(REAL *)i; - REAL f1 = *(REAL *)j; - return (f0 < f1) ? -1 : 1; -} - -void -FlistSorter::qsexc( char *i, char *j ) -{ - REAL *f0 = (REAL *)i; - REAL *f1 = (REAL *)j; - REAL tmp = *f0; - *f0 = *f1; - *f1 = tmp; -} - -void -FlistSorter::qstexc( char *i, char *j, char *k ) -{ - REAL *f0 = (REAL *)i; - REAL *f1 = (REAL *)j; - REAL *f2 = (REAL *)k; - REAL tmp = *f0; - *f0 = *f2; - *f2 = *f1; - *f1 = tmp; -} diff --git a/src/glu/sgi/libnurbs/internals/flistsorter.h b/src/glu/sgi/libnurbs/internals/flistsorter.h deleted file mode 100644 index 65e6a572e30..00000000000 --- a/src/glu/sgi/libnurbs/internals/flistsorter.h +++ /dev/null @@ -1,53 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * flistsorter.h - * - */ - -#ifndef __gluflistsorter_h_ -#define __gluflistsorter_h_ - -#include "sorter.h" -#include "types.h" - -class FlistSorter : public Sorter { -public: - FlistSorter(void); - virtual ~FlistSorter() { /* silence warning*/ } - void qsort( REAL *a, int n ); - -protected: - virtual int qscmp( char *, char * ); - virtual void qsexc( char *i, char *j ); // i<-j, j<-i - virtual void qstexc( char *i, char *j, char *k ); // i<-k, k<-j, j<-i -}; -#endif /* __gluflistsorter_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/gridline.h b/src/glu/sgi/libnurbs/internals/gridline.h deleted file mode 100644 index 1a92e3b13b5..00000000000 --- a/src/glu/sgi/libnurbs/internals/gridline.h +++ /dev/null @@ -1,46 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * gridline.h - * - */ - -#ifndef __glugridline_h_ -#define __glugridline_h_ - -struct Gridline { - long v; - REAL vval; - long vindex; - long ustart; - long uend; - }; -#endif /* __glugridline_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/gridtrimvertex.h b/src/glu/sgi/libnurbs/internals/gridtrimvertex.h deleted file mode 100644 index 707f649d20b..00000000000 --- a/src/glu/sgi/libnurbs/internals/gridtrimvertex.h +++ /dev/null @@ -1,89 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * gridtrimvertex.h - * - */ - -#ifndef __glugridtrimvertex_h_ -#define __glugridtrimvertex_h_ - -#include "mystdlib.h" -#include "bufpool.h" -#include "trimvertex.h" -#include "gridvertex.h" - -class GridTrimVertex : public PooledObj -{ -private: - TrimVertex dummyt; - GridVertex dummyg; -public: - GridTrimVertex() { g = 0; t = 0; } - TrimVertex *t; - GridVertex *g; - - inline void set( long, long ); - inline void set( REAL, REAL ); - inline void set( TrimVertex * ); - inline void clear( void ) { t = 0; g = 0; }; - inline int isGridVert() { return g ? 1 : 0 ; } - inline int isTrimVert() { return t ? 1 : 0 ; } - inline void output(); -}; - -inline void -GridTrimVertex::set( long x, long y ) -{ - g = &dummyg; - dummyg.gparam[0] = x; - dummyg.gparam[1] = y; -} - -inline void -GridTrimVertex::set( REAL x, REAL y ) -{ - g = 0; - t = &dummyt; - dummyt.param[0] = x; - dummyt.param[1] = y; - dummyt.nuid = 0; -} - -inline void -GridTrimVertex::set( TrimVertex *v ) -{ - g = 0; - t = v; -} - -typedef GridTrimVertex *GridTrimVertex_p; -#endif /* __glugridtrimvertex_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/gridvertex.h b/src/glu/sgi/libnurbs/internals/gridvertex.h deleted file mode 100644 index 2e27436ef81..00000000000 --- a/src/glu/sgi/libnurbs/internals/gridvertex.h +++ /dev/null @@ -1,48 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * gridvertex.h - * - */ - -#ifndef __glugridvertex_h_ -#define __glugridvertex_h_ - -struct GridVertex { - long gparam[2]; - GridVertex( void ) { gparam[0] = 0, gparam[1] = 0; } - GridVertex( long u, long v ) { gparam[0] = u, gparam[1] = v; } - void set( long u, long v ) { gparam[0] = u, gparam[1] = v; } - long nextu() { return gparam[0]++; } - long prevu() { return gparam[0]--; } -}; - -#endif /* __glugridvertex_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/hull.cc b/src/glu/sgi/libnurbs/internals/hull.cc deleted file mode 100644 index 389ba66fb84..00000000000 --- a/src/glu/sgi/libnurbs/internals/hull.cc +++ /dev/null @@ -1,165 +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. -*/ - -/* - * hull.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "hull.h" -#include "gridvertex.h" -#include "gridtrimvertex.h" -#include "gridline.h" -#include "trimline.h" -#include "uarray.h" -#include "trimregion.h" - -Hull::Hull( void ) -{} - -Hull::~Hull( void ) -{} - -/*---------------------------------------------------------------------- - * Hull:init - this routine does the initialization needed before any - * calls to nextupper or nextlower can be made. - *---------------------------------------------------------------------- - */ -void -Hull::init( void ) -{ - TrimVertex *lfirst = left.first(); - TrimVertex *llast = left.last(); - if( lfirst->param[0] <= llast->param[0] ) { - fakeleft.init( left.first() ); - upper.left = &fakeleft; - lower.left = &left; - } else { - fakeleft.init( left.last() ); - lower.left = &fakeleft; - upper.left = &left; - } - upper.left->last(); - lower.left->first(); - - if( top.ustart <= top.uend ) { - upper.line = ⊤ - upper.index = top.ustart; - } else - upper.line = 0; - - if( bot.ustart <= bot.uend ) { - lower.line = ⊥ - lower.index = bot.ustart; - } else - lower.line = 0; - - TrimVertex *rfirst = right.first(); - TrimVertex *rlast = right.last(); - if( rfirst->param[0] <= rlast->param[0] ) { - fakeright.init( right.last() ); - lower.right = &fakeright; - upper.right = &right; - } else { - fakeright.init( right.first() ); - upper.right = &fakeright; - lower.right = &right; - } - upper.right->first(); - lower.right->last(); -} - -/*---------------------------------------------------------------------- - * nextupper - find next vertex on upper hull of trim region. - * - if vertex is on trim curve, set vtop point to - * that vertex. if vertex is on grid, set vtop to - * point to temporary area and stuff coordinants into - * temporary vertex. Also, place grid coords in temporary - * grid vertex. - *---------------------------------------------------------------------- - */ -GridTrimVertex * -Hull::nextupper( GridTrimVertex *gv ) -{ - if( upper.left ) { - gv->set( upper.left->prev() ); - if( gv->isTrimVert() ) return gv; - upper.left = 0; - } - - if( upper.line ) { - assert( upper.index <= upper.line->uend ); - gv->set( uarray.uarray[upper.index], upper.line->vval ); - gv->set( upper.index, upper.line->vindex ); - if( upper.index++ == upper.line->uend ) upper.line = 0; - return gv; - } - - if( upper.right ) { - gv->set( upper.right->next() ); - if( gv->isTrimVert() ) return gv; - upper.right = 0; - } - - return 0; -} - -GridTrimVertex * -Hull::nextlower( register GridTrimVertex *gv ) -{ - if( lower.left ) { - gv->set( lower.left->next() ); - if( gv->isTrimVert() ) return gv; - lower.left = 0; - } - - if( lower.line ) { - gv->set( uarray.uarray[lower.index], lower.line->vval ); - gv->set( lower.index, lower.line->vindex ); - if( lower.index++ == lower.line->uend ) lower.line = 0; - return gv; - } - - if( lower.right ) { - gv->set( lower.right->prev() ); - if( gv->isTrimVert() ) return gv; - lower.right = 0; - } - - return 0; -} - diff --git a/src/glu/sgi/libnurbs/internals/hull.h b/src/glu/sgi/libnurbs/internals/hull.h deleted file mode 100644 index dfe865267f7..00000000000 --- a/src/glu/sgi/libnurbs/internals/hull.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * hull.h - * - */ - -#ifndef __gluhull_h_ -#define __gluhull_h_ - -#include "trimline.h" -#include "trimregion.h" -#include "trimvertex.h" -#include "gridtrimvertex.h" - -struct Gridline; -class Uarray; - -class Hull : virtual public TrimRegion { -public: - Hull( void ); - ~Hull( void ); - void init( void ); - GridTrimVertex * nextlower( GridTrimVertex * ); - GridTrimVertex * nextupper( GridTrimVertex * ); -private: - struct Side { - Trimline *left; - Gridline *line; - Trimline *right; - long index; - }; - - Side lower; - Side upper; - Trimline fakeleft; - Trimline fakeright; -}; - - -#endif /* __gluhull_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/intersect.cc b/src/glu/sgi/libnurbs/internals/intersect.cc deleted file mode 100644 index b39ea2121ef..00000000000 --- a/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 ); - } - } -} - diff --git a/src/glu/sgi/libnurbs/internals/jarcloc.h b/src/glu/sgi/libnurbs/internals/jarcloc.h deleted file mode 100644 index 5297036fa55..00000000000 --- a/src/glu/sgi/libnurbs/internals/jarcloc.h +++ /dev/null @@ -1,87 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * jarcloc.h - * - */ - -#ifndef __glujarcloc_h_ -#define __glujarcloc_h_ - -#include "arc.h" - -class Jarcloc { -private: - Arc_ptr arc; - TrimVertex *p; - TrimVertex *plast; -public: - inline void init( Arc_ptr a, long first, long last ) { arc = a; p=&a->pwlArc->pts[first]; plast = &a->pwlArc->pts[last]; } - inline TrimVertex * getnextpt( void ); - inline TrimVertex * getprevpt( void ); - inline void reverse(); -}; - -inline void -Jarcloc::reverse() -{ - if( plast == &arc->pwlArc->pts[0] ) - plast = &arc->pwlArc->pts[arc->pwlArc->npts - 1]; - else - plast = &arc->pwlArc->pts[0]; -} - -inline TrimVertex * -Jarcloc::getnextpt() -{ - assert( p <= plast ); - if( p == plast ) { - arc = arc->next; - p = &arc->pwlArc->pts[0]; - plast = &arc->pwlArc->pts[arc->pwlArc->npts - 1]; - assert( p < plast ); - } - return p++; -} - -inline TrimVertex * -Jarcloc::getprevpt() -{ - assert( p >= plast ); - if( p == plast ) { - arc = arc->prev; - p = &arc->pwlArc->pts[arc->pwlArc->npts - 1]; - plast = &arc->pwlArc->pts[0]; - assert( p > plast ); - } - return p--; -} -#endif /* __glujarcloc_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/knotvector.cc b/src/glu/sgi/libnurbs/internals/knotvector.cc deleted file mode 100644 index dcbf0067d85..00000000000 --- a/src/glu/sgi/libnurbs/internals/knotvector.cc +++ /dev/null @@ -1,142 +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. -*/ - -/* - * knotvector.c++ - * - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "knotvector.h" -#include "defines.h" - -#ifdef __WATCOMC__ -#pragma warning 726 10 -#endif - -void Knotvector::init( long _knotcount, long _stride, long _order, INREAL *_knotlist ) -{ - knotcount = _knotcount; - stride = _stride; - order = _order; - knotlist = new Knot[_knotcount]; - assert( knotlist != 0 ); - - for( int i = 0; i != _knotcount; i++ ) - knotlist[i] = (Knot) _knotlist[i]; -} - -Knotvector::Knotvector( void ) -{ - knotcount = 0; - stride = 0; - order = 0; - knotlist = 0; -} - -Knotvector::~Knotvector( void ) -{ - if( knotlist ) delete[] knotlist; -} - -int Knotvector::validate( void ) -{ - /* kindex is used as an array index so subtract one first, - * this propagates throughout the code so study carefully */ - long kindex = knotcount-1; - - if( order < 1 || order > MAXORDER ) { - // spline order un-supported - return( 1 ); - } - - if( knotcount < (2 * order) ) { - // too few knots - return( 2 ); - } - - if( identical( knotlist[kindex-(order-1)], knotlist[order-1]) ) { - // valid knot range is empty - return( 3 ); - } - - for( long i = 0; i < kindex; i++) - if( knotlist[i] > knotlist[i+1] ) { - // decreasing knot sequence - return( 4 ); - } - - /* check for valid multiplicity */ - - /* kindex is currently the index of the last knot. - * In the next loop it is decremented to ignore the last knot - * and the loop stops when kindex is 2 so as to ignore the first - * knot as well. These knots are not used in computing - * knot multiplicities. - */ - - long multi = 1; - for( ; kindex >= 1; kindex-- ) { - if( knotlist[kindex] - knotlist[kindex-1] < TOLERANCE ) { - multi++; - continue; - } - if ( multi > order ) { - // knot multiplicity greater than order of spline - return( 5 ); - } - multi = 1; - } - - if ( multi > order ) { - // knot multiplicity greater than order of spline - return( 5 ); - } - - return 0; -} - -void Knotvector::show( const char *msg ) -{ -#ifndef NDEBUG - _glu_dprintf( "%s\n", msg ); - _glu_dprintf( "order = %ld, count = %ld\n", order, knotcount ); - - for( int i=0; i<knotcount; i++ ) - _glu_dprintf( "knot[%d] = %g\n", i, knotlist[i] ); -#endif -} - diff --git a/src/glu/sgi/libnurbs/internals/knotvector.h b/src/glu/sgi/libnurbs/internals/knotvector.h deleted file mode 100644 index 85b162f6f11..00000000000 --- a/src/glu/sgi/libnurbs/internals/knotvector.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * knotvector.h - * - */ - -#ifndef __gluknotvector_h_ -#define __gluknotvector_h_ - -#include "types.h" - -struct Knotvector { /* a knot vector */ - Knotvector( void ); - ~Knotvector( void ); - void init( long, long, long, INREAL * ); - int validate( void ); - void show( const char * ); - - long order; /* order of spline */ - long knotcount; /* number of knots */ - long stride; /* bytes between points */ - Knot * knotlist; /* global knot vector */ -}; - -/* tolerance to test knot coincidence */ -#define TOLERANCE 1.0e-5 - -inline int -identical( Knot x, Knot y ) -{ - return ((x-y) < TOLERANCE) ? 1 : 0; -} -#endif /* __gluknotvector_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/mapdesc.cc b/src/glu/sgi/libnurbs/internals/mapdesc.cc deleted file mode 100644 index 0a96c5f45b8..00000000000 --- a/src/glu/sgi/libnurbs/internals/mapdesc.cc +++ /dev/null @@ -1,841 +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. -*/ - -/* - * mapdesc.c++ - * - */ - -#include <stdio.h> -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "mystring.h" -#include "mymath.h" -#include "backend.h" -#include "nurbsconsts.h" -#include "mapdesc.h" - -Mapdesc::Mapdesc( long _type, int _israt, int _ncoords, Backend& b ) - : backend( b ) -{ - type = _type; - isrational = _israt; - ncoords = _ncoords; - hcoords = _ncoords + (_israt ? 0 : 1 ); - inhcoords = _ncoords - (_israt ? 1 : 0 ); - mask = ((1<<(inhcoords*2))-1); - next = 0; - - assert( hcoords <= MAXCOORDS ); - assert( inhcoords >= 1 ); - - pixel_tolerance = 1.0; - error_tolerance = 1.0; - bbox_subdividing = N_NOBBOXSUBDIVISION; - culling_method = N_NOCULLING; - sampling_method = N_NOSAMPLING; - clampfactor = N_NOCLAMPING; - minsavings = N_NOSAVINGSSUBDIVISION; - s_steps = 0.0; - t_steps = 0.0; - maxrate = ( s_steps < 0.0 ) ? 0.0 : s_steps; - maxsrate = ( s_steps < 0.0 ) ? 0.0 : s_steps; - maxtrate = ( t_steps < 0.0 ) ? 0.0 : t_steps; - identify( bmat ); - identify( cmat ); - identify( smat ); - for( int i = 0; i != inhcoords; i++ ) - bboxsize[i] = 1.0; -} - -void -Mapdesc::setBboxsize( INREAL *mat ) -{ - for( int i = 0; i != inhcoords; i++ ) - bboxsize[i] = (REAL) mat[i]; -} - -void -Mapdesc::identify( REAL dest[MAXCOORDS][MAXCOORDS] ) -{ - memset( dest, 0, sizeof( REAL ) * MAXCOORDS * MAXCOORDS ); - for( int i=0; i != hcoords; i++ ) - dest[i][i] = 1.0; -} - -void -Mapdesc::surfbbox( REAL bb[2][MAXCOORDS] ) -{ - backend.surfbbox( type, bb[0], bb[1] ); -} - -void -Mapdesc::copy( REAL dest[MAXCOORDS][MAXCOORDS], long n, INREAL *src, - long rstride, long cstride ) -{ - assert( n >= 0 ); - for( int i=0; i != n; i++ ) - for( int j=0; j != n; j++ ) - dest[i][j] = src[i*rstride + j*cstride]; -} - -/*-------------------------------------------------------------------------- - * copyPt - copy a homogeneous point - *-------------------------------------------------------------------------- - */ -void -Mapdesc::copyPt( REAL *d, REAL *s ) -{ - assert( hcoords > 0 ); - switch( hcoords ) { - case 4: - d[3] = s[3]; - d[2] = s[2]; - d[1] = s[1]; - d[0] = s[0]; - break; - case 3: - d[2] = s[2]; - d[1] = s[1]; - d[0] = s[0]; - break; - case 2: - d[1] = s[1]; - d[0] = s[0]; - break; - case 1: - d[0] = s[0]; - break; - case 5: - d[4] = s[4]; - d[3] = s[3]; - d[2] = s[2]; - d[1] = s[1]; - d[0] = s[0]; - break; - default: - memcpy( d, s, hcoords * sizeof( REAL ) ); - break; - } -} - -/*-------------------------------------------------------------------------- - * sumPt - compute affine combination of two homogeneous points - *-------------------------------------------------------------------------- - */ -void -Mapdesc::sumPt( REAL *dst, REAL *src1, REAL *src2, register REAL alpha, register REAL beta ) -{ - assert( hcoords > 0 ); - switch( hcoords ) { - case 4: - dst[3] = src1[3] * alpha + src2[3] * beta; - dst[2] = src1[2] * alpha + src2[2] * beta; - dst[1] = src1[1] * alpha + src2[1] * beta; - dst[0] = src1[0] * alpha + src2[0] * beta; - break; - case 3: - dst[2] = src1[2] * alpha + src2[2] * beta; - dst[1] = src1[1] * alpha + src2[1] * beta; - dst[0] = src1[0] * alpha + src2[0] * beta; - break; - case 2: - dst[1] = src1[1] * alpha + src2[1] * beta; - dst[0] = src1[0] * alpha + src2[0] * beta; - break; - case 1: - dst[0] = src1[0] * alpha + src2[0] * beta; - break; - case 5: - dst[4] = src1[4] * alpha + src2[4] * beta; - dst[3] = src1[3] * alpha + src2[3] * beta; - dst[2] = src1[2] * alpha + src2[2] * beta; - dst[1] = src1[1] * alpha + src2[1] * beta; - dst[0] = src1[0] * alpha + src2[0] * beta; - break; - default: { - for( int i = 0; i != hcoords; i++ ) - dst[i] = src1[i] * alpha + src2[i] * beta; - } - break; - } -} - -/*-------------------------------------------------------------------------- - * clipbits - compute bit-vector indicating point/window position - * of a (transformed) homogeneous point - *-------------------------------------------------------------------------- - */ -unsigned int -Mapdesc::clipbits( REAL *p ) -{ - assert( inhcoords >= 0 ); - assert( inhcoords <= 3 ); - - register int nc = inhcoords; - register REAL pw = p[nc]; - register REAL nw = -pw; - register unsigned int bits = 0; - - if( pw == 0.0 ) return mask; - - if( pw > 0.0 ) { - switch( nc ) { - case 3: - if( p[2] <= pw ) bits |= (1<<5); - if( p[2] >= nw ) bits |= (1<<4); - if( p[1] <= pw ) bits |= (1<<3); - if( p[1] >= nw ) bits |= (1<<2); - if( p[0] <= pw ) bits |= (1<<1); - if( p[0] >= nw ) bits |= (1<<0); - return bits; - case 2: - if( p[1] <= pw ) bits |= (1<<3); - if( p[1] >= nw ) bits |= (1<<2); - if( p[0] <= pw ) bits |= (1<<1); - if( p[0] >= nw ) bits |= (1<<0); - return bits; - case 1: - if( p[0] <= pw ) bits |= (1<<1); - if( p[0] >= nw ) bits |= (1<<0); - return bits; - default: { - int bit = 1; - for( int i=0; i<nc; i++ ) { - if( p[i] >= nw ) bits |= bit; - bit <<= 1; - if( p[i] <= pw ) bits |= bit; - bit <<= 1; - } - abort(); - break; - } - } - } else { - switch( nc ) { - case 3: - if( p[2] <= nw ) bits |= (1<<5); - if( p[2] >= pw ) bits |= (1<<4); - if( p[1] <= nw ) bits |= (1<<3); - if( p[1] >= pw ) bits |= (1<<2); - if( p[0] <= nw ) bits |= (1<<1); - if( p[0] >= pw ) bits |= (1<<0); - return bits; - case 2: - if( p[1] <= nw ) bits |= (1<<3); - if( p[1] >= pw ) bits |= (1<<2); - if( p[0] <= nw ) bits |= (1<<1); - if( p[0] >= pw ) bits |= (1<<0); - return bits; - case 1: - if( p[0] <= nw ) bits |= (1<<1); - if( p[0] >= pw ) bits |= (1<<0); - return bits; - default: { - int bit = 1; - for( int i=0; i<nc; i++ ) { - if( p[i] >= pw ) bits |= bit; - bit <<= 1; - if( p[i] <= nw ) bits |= bit; - bit <<= 1; - } - abort(); - break; - } - } - } - return bits; -} - -/*-------------------------------------------------------------------------- - * xformRational - transform a homogeneous point - *-------------------------------------------------------------------------- - */ -void -Mapdesc::xformRational( Maxmatrix mat, REAL *d, REAL *s ) -{ - assert( hcoords >= 0 ); - - if( hcoords == 3 ) { - REAL x = s[0]; - REAL y = s[1]; - REAL z = s[2]; - d[0] = x*mat[0][0]+y*mat[1][0]+z*mat[2][0]; - d[1] = x*mat[0][1]+y*mat[1][1]+z*mat[2][1]; - d[2] = x*mat[0][2]+y*mat[1][2]+z*mat[2][2]; - } else if( hcoords == 4 ) { - REAL x = s[0]; - REAL y = s[1]; - REAL z = s[2]; - REAL w = s[3]; - d[0] = x*mat[0][0]+y*mat[1][0]+z*mat[2][0]+w*mat[3][0]; - d[1] = x*mat[0][1]+y*mat[1][1]+z*mat[2][1]+w*mat[3][1]; - d[2] = x*mat[0][2]+y*mat[1][2]+z*mat[2][2]+w*mat[3][2]; - d[3] = x*mat[0][3]+y*mat[1][3]+z*mat[2][3]+w*mat[3][3]; - } else { - for( int i=0; i != hcoords; i++ ) { - d[i] = 0; - for( int j = 0; j != hcoords; j++ ) - d[i] += s[j] * mat[j][i]; - } - } -} - -/*-------------------------------------------------------------------------- - * xformNonrational - transform a inhomogeneous point to a homogeneous point - *-------------------------------------------------------------------------- - */ -void -Mapdesc::xformNonrational( Maxmatrix mat, REAL *d, REAL *s ) -{ - if( inhcoords == 2 ) { - REAL x = s[0]; - REAL y = s[1]; - d[0] = x*mat[0][0]+y*mat[1][0]+mat[2][0]; - d[1] = x*mat[0][1]+y*mat[1][1]+mat[2][1]; - d[2] = x*mat[0][2]+y*mat[1][2]+mat[2][2]; - } else if( inhcoords == 3 ) { - REAL x = s[0]; - REAL y = s[1]; - REAL z = s[2]; - d[0] = x*mat[0][0]+y*mat[1][0]+z*mat[2][0]+mat[3][0]; - d[1] = x*mat[0][1]+y*mat[1][1]+z*mat[2][1]+mat[3][1]; - d[2] = x*mat[0][2]+y*mat[1][2]+z*mat[2][2]+mat[3][2]; - d[3] = x*mat[0][3]+y*mat[1][3]+z*mat[2][3]+mat[3][3]; - } else { - assert( inhcoords >= 0 ); - for( int i=0; i != hcoords; i++ ) { - d[i] = mat[inhcoords][i]; - for( int j = 0; j < inhcoords; j++ ) - d[i] += s[j] * mat[j][i]; - } - } -} - -/*-------------------------------------------------------------------------- - * xformAndCullCheck - transform a set of points that may be EITHER - * homogeneous or inhomogeneous depending on the map description and - * check if they are either completely inside, completely outside, - * or intersecting the viewing frustrum. - *-------------------------------------------------------------------------- - */ -int -Mapdesc::xformAndCullCheck( - REAL *pts, int uorder, int ustride, int vorder, int vstride ) -{ - assert( uorder > 0 ); - assert( vorder > 0 ); - - unsigned int inbits = mask; - unsigned int outbits = 0; - - REAL *p = pts; - for( REAL *pend = p + uorder * ustride; p != pend; p += ustride ) { - REAL *q = p; - for( REAL *qend = q + vorder * vstride; q != qend; q += vstride ) { - REAL cpts[MAXCOORDS]; - xformCulling( cpts, q ); - unsigned int bits = clipbits( cpts ); - outbits |= bits; - inbits &= bits; - if( ( outbits == (unsigned int)mask ) && ( inbits != (unsigned int)mask ) ) return CULL_ACCEPT; - } - } - - if( outbits != (unsigned int)mask ) { - return CULL_TRIVIAL_REJECT; - } else if( inbits == (unsigned int)mask ) { - return CULL_TRIVIAL_ACCEPT; - } else { - return CULL_ACCEPT; - } -} - -/*-------------------------------------------------------------------------- - * cullCheck - check if a set of homogeneous transformed points are - * either completely inside, completely outside, - * or intersecting the viewing frustrum. - *-------------------------------------------------------------------------- - */ -int -Mapdesc::cullCheck( REAL *pts, int uorder, int ustride, int vorder, int vstride ) -{ - unsigned int inbits = mask; - unsigned int outbits = 0; - - REAL *p = pts; - for( REAL *pend = p + uorder * ustride; p != pend; p += ustride ) { - REAL *q = p; - for( REAL *qend = q + vorder * vstride; q != qend; q += vstride ) { - unsigned int bits = clipbits( q ); - outbits |= bits; - inbits &= bits; - if( ( outbits == (unsigned int)mask ) && ( inbits != (unsigned int)mask ) ) return CULL_ACCEPT; - } - } - - if( outbits != (unsigned int)mask ) { - return CULL_TRIVIAL_REJECT; - } else if( inbits == (unsigned int)mask ) { - return CULL_TRIVIAL_ACCEPT; - } else { - return CULL_ACCEPT; - } -} - -/*-------------------------------------------------------------------------- - * cullCheck - check if a set of homogeneous transformed points are - * either completely inside, completely outside, - * or intersecting the viewing frustrum. - *-------------------------------------------------------------------------- - */ -int -Mapdesc::cullCheck( REAL *pts, int order, int stride ) -{ - unsigned int inbits = mask; - unsigned int outbits = 0; - - REAL *p = pts; - for( REAL *pend = p + order * stride; p != pend; p += stride ) { - unsigned int bits = clipbits( p ); - outbits |= bits; - inbits &= bits; - if( ( outbits == (unsigned int)mask ) && ( inbits != (unsigned int)mask ) ) return CULL_ACCEPT; - } - - if( outbits != (unsigned int)mask ) { - return CULL_TRIVIAL_REJECT; - } else if( inbits == (unsigned int)mask ) { - return CULL_TRIVIAL_ACCEPT; - } else { - return CULL_ACCEPT; - } -} - -/*-------------------------------------------------------------------------- - * xformSampling - transform a set of points that may be EITHER - * homogeneous or inhomogeneous depending on the map description - * into sampling space - *-------------------------------------------------------------------------- - */ -void -Mapdesc::xformSampling( REAL *pts, int order, int stride, REAL *sp, int outstride ) -{ - xformMat( smat, pts, order, stride, sp, outstride ); -} - -void -Mapdesc::xformBounding( REAL *pts, int order, int stride, REAL *sp, int outstride ) -{ - xformMat( bmat, pts, order, stride, sp, outstride ); -} - -/*-------------------------------------------------------------------------- - * xformCulling - transform a set of points that may be EITHER - * homogeneous or inhomogeneous depending on the map description - * into culling space - *-------------------------------------------------------------------------- - */ -void -Mapdesc::xformCulling( REAL *pts, int order, int stride, REAL *cp, int outstride ) -{ - xformMat( cmat, pts, order, stride, cp, outstride ); -} - -/*-------------------------------------------------------------------------- - * xformCulling - transform a set of points that may be EITHER - * homogeneous or inhomogeneous depending on the map description - * into culling space - *-------------------------------------------------------------------------- - */ -void -Mapdesc::xformCulling( REAL *pts, - int uorder, int ustride, - int vorder, int vstride, - REAL *cp, int outustride, int outvstride ) -{ - xformMat( cmat, pts, uorder, ustride, vorder, vstride, cp, outustride, outvstride ); -} - -/*-------------------------------------------------------------------------- - * xformSampling - transform a set of points that may be EITHER - * homogeneous or inhomogeneous depending on the map description - * into sampling space - *-------------------------------------------------------------------------- - */ -void -Mapdesc::xformSampling( REAL *pts, - int uorder, int ustride, - int vorder, int vstride, - REAL *sp, int outustride, int outvstride ) -{ - xformMat( smat, pts, uorder, ustride, vorder, vstride, sp, outustride, outvstride ); -} - -void -Mapdesc::xformBounding( REAL *pts, - int uorder, int ustride, - int vorder, int vstride, - REAL *sp, int outustride, int outvstride ) -{ - xformMat( bmat, pts, uorder, ustride, vorder, vstride, sp, outustride, outvstride ); -} - -void -Mapdesc::xformMat( - Maxmatrix mat, - REAL * pts, - int order, - int stride, - REAL * cp, - int outstride ) -{ - if( isrational ) { - REAL *pend = pts + order * stride; - for( REAL *p = pts ; p != pend; p += stride ) { - xformRational( mat, cp, p ); - cp += outstride; - } - } else { - REAL *pend = pts + order * stride; - for( REAL *p = pts ; p != pend; p += stride ) { - xformNonrational( mat, cp, p ); - cp += outstride; - } - } -} - -void -Mapdesc::xformMat( Maxmatrix mat, REAL *pts, - int uorder, int ustride, - int vorder, int vstride, - REAL *cp, int outustride, int outvstride ) -{ - if( isrational ) { - REAL *pend = pts + uorder * ustride; - for( REAL *p = pts ; p != pend; p += ustride ) { - REAL *cpts2 = cp; - REAL *qend = p + vorder * vstride; - for( REAL *q = p; q != qend; q += vstride ) { - xformRational( mat, cpts2, q ); - cpts2 += outvstride; - } - cp += outustride; - } - } else { - REAL *pend = pts + uorder * ustride; - for( REAL *p = pts ; p != pend; p += ustride ) { - REAL *cpts2 = cp; - REAL *qend = p + vorder * vstride; - for( REAL *q = p; q != qend; q += vstride ) { - xformNonrational( mat, cpts2, q ); - cpts2 += outvstride; - } - cp += outustride; - } - } -} - -/*-------------------------------------------------------------------------- - * subdivide - subdivide a curve along an isoparametric line - *-------------------------------------------------------------------------- - */ - -void -Mapdesc::subdivide( REAL *src, REAL *dst, REAL v, int stride, int order ) -{ - REAL mv = 1.0 - v; - - for( REAL *send=src+stride*order; src!=send; send-=stride, dst+=stride ) { - copyPt( dst, src ); - REAL *qpnt = src + stride; - for( REAL *qp=src; qpnt!=send; qp=qpnt, qpnt+=stride ) - sumPt( qp, qp, qpnt, mv, v ); - } -} - -/*-------------------------------------------------------------------------- - * subdivide - subdivide a patch along an isoparametric line - *-------------------------------------------------------------------------- - */ - -void -Mapdesc::subdivide( REAL *src, REAL *dst, REAL v, - int so, int ss, int to, int ts ) -{ - REAL mv = 1.0 - v; - - for( REAL *slast = src+ss*so; src != slast; src += ss, dst += ss ) { - REAL *sp = src; - REAL *dp = dst; - for( REAL *send = src+ts*to; sp != send; send -= ts, dp += ts ) { - copyPt( dp, sp ); - REAL *qp = sp; - for( REAL *qpnt = sp+ts; qpnt != send; qp = qpnt, qpnt += ts ) - sumPt( qp, qp, qpnt, mv, v ); - } - } -} - - -#define sign(x) ((x > 0) ? 1 : ((x < 0.0) ? -1 : 0)) - -/*-------------------------------------------------------------------------- - * project - project a set of homogeneous coordinates into inhomogeneous ones - *-------------------------------------------------------------------------- - */ -int -Mapdesc::project( REAL *src, int rstride, int cstride, - REAL *dest, int trstride, int tcstride, - int nrows, int ncols ) -{ - int s = sign( src[inhcoords] ); - REAL *rlast = src + nrows * rstride; - REAL *trptr = dest; - for( REAL *rptr=src; rptr != rlast; rptr+=rstride, trptr+=trstride ) { - REAL *clast = rptr + ncols * cstride; - REAL *tcptr = trptr; - for( REAL *cptr = rptr; cptr != clast; cptr+=cstride, tcptr+=tcstride ) { - REAL *coordlast = cptr + inhcoords; - if( sign( *coordlast ) != s ) return 0; - REAL *tcoord = tcptr; - for( REAL *coord = cptr; coord != coordlast; coord++, tcoord++ ) { - *tcoord = *coord / *coordlast; - } - } - } - return 1; -} - -/*-------------------------------------------------------------------------- - * project - project a set of homogeneous coordinates into inhomogeneous ones - *-------------------------------------------------------------------------- - */ -int -Mapdesc::project( REAL *src, int stride, REAL *dest, int tstride, int ncols ) -{ - int s = sign( src[inhcoords] ); - - REAL *clast = src + ncols * stride; - for( REAL *cptr = src, *tcptr = dest; cptr != clast; cptr+=stride, tcptr+=tstride ) { - REAL *coordlast = cptr + inhcoords; - if( sign( *coordlast ) != s ) return 0; - for( REAL *coord = cptr, *tcoord = tcptr; coord != coordlast; coord++, tcoord++ ) - *tcoord = *coord / *coordlast; - } - - return 1; -} - -int -Mapdesc::bboxTooBig( - REAL *p, - int rstride, - int cstride, - int nrows, - int ncols, - REAL bb[2][MAXCOORDS] ) -{ - REAL bbpts[MAXORDER][MAXORDER][MAXCOORDS]; - const int trstride = sizeof(bbpts[0]) / sizeof(REAL); - const int tcstride = sizeof(bbpts[0][0]) / sizeof(REAL); - - // points have been transformed, therefore they are homogeneous - // project points - int val = project( p, rstride, cstride, - &bbpts[0][0][0], trstride, tcstride, nrows, ncols ); - if( val == 0 ) return -1; - - // compute bounding box - bbox( bb, &bbpts[0][0][0], trstride, tcstride, nrows, ncols ); - - // find out if bounding box can't fit in unit cube - if( bbox_subdividing == N_BBOXROUND ) { - for( int k=0; k != inhcoords; k++ ) - if( ceilf(bb[1][k]) - floorf(bb[0][k]) > bboxsize[k] ) return 1; - } else { - for( int k=0; k != inhcoords; k++ ) - if( bb[1][k] - bb[0][k] > bboxsize[k] ) return 1; - } - return 0; -} - -void -Mapdesc::bbox( - REAL bb[2][MAXCOORDS], - REAL *p, - int rstride, - int cstride, - int nrows, - int ncols ) -{ - int k; - for( k=0; k != inhcoords; k++ ) - bb[0][k] = bb[1][k] = p[k]; - - for( int i=0; i != nrows; i++ ) - for( int j=0; j != ncols; j++ ) - for( k=0; k != inhcoords; k++ ) { - REAL x = p[i*rstride + j*cstride + k]; - if( x < bb[0][k] ) bb[0][k] = x; - else if( x > bb[1][k] ) bb[1][k] = x; - } -} - -/*-------------------------------------------------------------------------- - * calcVelocityRational - calculate upper bound on first partial derivative - * of a homogeneous set of points and bounds on each row of points. - *-------------------------------------------------------------------------- - */ -REAL -Mapdesc::calcVelocityRational( REAL *p, int stride, int ncols ) -{ - REAL tmp[MAXORDER][MAXCOORDS]; - - assert( ncols <= MAXORDER ); - - const int tstride = sizeof(tmp[0]) / sizeof(REAL); - - if( project( p, stride, &tmp[0][0], tstride, ncols ) ) { - return calcPartialVelocity( &tmp[0][0], tstride, ncols, 1, 1.0 ); - } else { /* XXX */ - return calcPartialVelocity( &tmp[0][0], tstride, ncols, 1, 1.0 ); - } -} - -/*-------------------------------------------------------------------------- - * calcVelocityNonrational - calculate upper bound on first partial - * derivative of a inhomogeneous set of points. - *-------------------------------------------------------------------------- - */ -REAL -Mapdesc::calcVelocityNonrational( REAL *pts, int stride, int ncols ) -{ - return calcPartialVelocity( pts, stride, ncols, 1, 1.0 ); -} - -int -Mapdesc::isProperty( long property ) -{ - switch ( property ) { - case N_PIXEL_TOLERANCE: - case N_ERROR_TOLERANCE: - case N_CULLING: - case N_BBOX_SUBDIVIDING: - case N_S_STEPS: - case N_T_STEPS: - case N_SAMPLINGMETHOD: - case N_CLAMPFACTOR: - case N_MINSAVINGS: - return 1; - default: - return 0; - } -} - -REAL -Mapdesc::getProperty( long property ) -{ - switch ( property ) { - case N_PIXEL_TOLERANCE: - return pixel_tolerance; - case N_ERROR_TOLERANCE: - return error_tolerance; - case N_CULLING: - return culling_method; - case N_BBOX_SUBDIVIDING: - return bbox_subdividing; - case N_S_STEPS: - return s_steps; - case N_T_STEPS: - return t_steps; - case N_SAMPLINGMETHOD: - return sampling_method; - case N_CLAMPFACTOR: - return clampfactor; - case N_MINSAVINGS: - return minsavings; - default: - abort(); - return -1; //not necessary, needed to shut up compiler - } -} - -void -Mapdesc::setProperty( long property, REAL value ) -{ - - switch ( property ) { - case N_PIXEL_TOLERANCE: - pixel_tolerance = value; - break; - case N_ERROR_TOLERANCE: - error_tolerance = value; - break; - case N_CULLING: - culling_method = value; - break; - case N_BBOX_SUBDIVIDING: - if( value <= 0.0 ) value = N_NOBBOXSUBDIVISION; - bbox_subdividing = value; - break; - case N_S_STEPS: - if( value < 0.0 ) value = 0.0; - s_steps = value; - maxrate = ( value < 0.0 ) ? 0.0 : value; - maxsrate = ( value < 0.0 ) ? 0.0 : value; - break; - case N_T_STEPS: - if( value < 0.0 ) value = 0.0; - t_steps = value; - maxtrate = ( value < 0.0 ) ? 0.0 : value; - break; - case N_SAMPLINGMETHOD: - sampling_method = value; - break; - case N_CLAMPFACTOR: - if( value <= 0.0 ) value = N_NOCLAMPING; - clampfactor = value; - break; - case N_MINSAVINGS: - if( value <= 0.0 ) value = N_NOSAVINGSSUBDIVISION; - minsavings = value; - break; - default: - abort(); - break; - } -} - diff --git a/src/glu/sgi/libnurbs/internals/mapdesc.h b/src/glu/sgi/libnurbs/internals/mapdesc.h deleted file mode 100644 index 6f06154f92a..00000000000 --- a/src/glu/sgi/libnurbs/internals/mapdesc.h +++ /dev/null @@ -1,271 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * mapdesc.h - * - */ - -#ifndef __glumapdesc_h_ -#define __glumapdesc_h_ - -#include "mystdio.h" -#include "types.h" -#include "defines.h" -#include "bufpool.h" -#include "nurbsconsts.h" - -typedef REAL Maxmatrix[MAXCOORDS][MAXCOORDS]; - -class Backend; - -class Mapdesc : public PooledObj { - friend class Maplist; - -public: - Mapdesc( long, int, int, Backend & ); - int isProperty( long ); - REAL getProperty( long ); - void setProperty( long, REAL ); - int isConstantSampling( void ); - int isDomainSampling( void ); - int isRangeSampling( void ); - int isSampling( void ); - int isParametricDistanceSampling( void ); - int isObjectSpaceParaSampling( void ); - int isObjectSpacePathSampling( void ); - int isSurfaceAreaSampling( void ); - int isPathLengthSampling( void ); - int isCulling( void ); - int isBboxSubdividing( void ); - long getType( void ); - - /* curve routines */ - void subdivide( REAL *, REAL *, REAL, int, int ); - int cullCheck( REAL *, int, int ); - void xformBounding( REAL *, int, int, REAL *, int ); - void xformCulling( REAL *, int, int, REAL *, int ); - void xformSampling( REAL *, int, int, REAL *, int ); - void xformMat( Maxmatrix, REAL *, int, int, REAL *, int ); - REAL calcPartialVelocity ( REAL *, int, int, int, REAL ); - int project( REAL *, int, REAL *, int, int ); - REAL calcVelocityRational( REAL *, int, int ); - REAL calcVelocityNonrational( REAL *, int, int ); - - /* surface routines */ - void subdivide( REAL *, REAL *, REAL, int, int, int, int ); - int cullCheck( REAL *, int, int, int, int ); - void xformBounding( REAL *, int, int, int, int, REAL *, int, int ); - void xformCulling( REAL *, int, int, int, int, REAL *, int, int ); - void xformSampling( REAL *, int, int, int, int, REAL *, int, int ); - void xformMat( Maxmatrix, REAL *, int, int, int, int, REAL *, int, int ); - REAL calcPartialVelocity ( REAL *, REAL *, int, int, int, int, int, int, REAL, REAL, int ); - int project( REAL *, int, int, REAL *, int, int, int, int); - void surfbbox( REAL bb[2][MAXCOORDS] ); - - int bboxTooBig( REAL *, int, int, int, int, REAL [2][MAXCOORDS] ); - int xformAndCullCheck( REAL *, int, int, int, int ); - - void identify( REAL[MAXCOORDS][MAXCOORDS] ); - void setBboxsize( INREAL *); - inline void setBmat( INREAL*, long, long ); - inline void setCmat( INREAL*, long, long ); - inline void setSmat( INREAL*, long, long ); - inline int isRational( void ); - inline int getNcoords( void ); - - REAL pixel_tolerance; /* pathlength sampling tolerance */ - REAL error_tolerance; /* parametric error sampling tolerance*/ - REAL object_space_error_tolerance; /* object space tess*/ - REAL clampfactor; - REAL minsavings; - REAL maxrate; - REAL maxsrate; - REAL maxtrate; - REAL bboxsize[MAXCOORDS]; - -private: - long type; - int isrational; - int ncoords; - int hcoords; - int inhcoords; - int mask; - Maxmatrix bmat; - Maxmatrix cmat; - Maxmatrix smat; - REAL s_steps; /* max samples in s direction */ - REAL t_steps; /* max samples in t direction */ - REAL sampling_method; - REAL culling_method; /* check for culling */ - REAL bbox_subdividing; - Mapdesc * next; - Backend & backend; - - void bbox( REAL [2][MAXCOORDS], REAL *, int, int, int, int ); - REAL maxDifference( int, REAL *, int ); - static void copy( Maxmatrix, long, INREAL *, long, long ); - - /* individual control point routines */ - static void transform4d( float[4], float[4], float[4][4] ); - static void multmatrix4d ( float[4][4], const float[4][4], - const float[4][4] ); - void copyPt( REAL *, REAL * ); - void sumPt( REAL *, REAL *, REAL *, REAL, REAL ); - void xformSampling( REAL *, REAL * ); - void xformCulling( REAL *, REAL * ); - void xformRational( Maxmatrix, REAL *, REAL * ); - void xformNonrational( Maxmatrix, REAL *, REAL * ); - unsigned int clipbits( REAL * ); -}; - -inline void -Mapdesc::setBmat( INREAL *mat, long rstride, long cstride ) -{ - copy( bmat, hcoords, mat, rstride, cstride ); -} - -inline void -Mapdesc::setCmat( INREAL *mat, long rstride, long cstride ) -{ - copy( cmat, hcoords, mat, rstride, cstride ); -} - -inline void -Mapdesc::setSmat( INREAL *mat, long rstride, long cstride ) -{ - copy( smat, hcoords, mat, rstride, cstride ); -} - -inline long -Mapdesc::getType( void ) -{ - return type; -} - -inline void -Mapdesc::xformCulling( REAL *d, REAL *s ) -{ - if( isrational ) - xformRational( cmat, d, s ); - else - xformNonrational( cmat, d, s ); -} - -inline void -Mapdesc::xformSampling( REAL *d, REAL *s ) -{ - if( isrational ) - xformRational( smat, d, s ); - else - xformNonrational( smat, d, s ); -} - -inline int -Mapdesc::isRational( void ) -{ - return isrational ? 1 : 0; -} - -inline int -Mapdesc::getNcoords( void ) -{ - return ncoords; -} - -inline int -Mapdesc::isConstantSampling( void ) -{ - return ((sampling_method == N_FIXEDRATE) ? 1 : 0); -} - -inline int -Mapdesc::isDomainSampling( void ) -{ - return ((sampling_method == N_DOMAINDISTANCE) ? 1 : 0); -} - -inline int -Mapdesc::isParametricDistanceSampling( void ) -{ - return ((sampling_method == N_PARAMETRICDISTANCE) ? 1 : 0); -} - -inline int -Mapdesc::isObjectSpaceParaSampling( void ) -{ - return ((sampling_method == N_OBJECTSPACE_PARA) ? 1 : 0); -} - -inline int -Mapdesc::isObjectSpacePathSampling( void ) -{ - return ((sampling_method == N_OBJECTSPACE_PATH) ? 1 : 0); -} - -inline int -Mapdesc::isSurfaceAreaSampling( void ) -{ - return ((sampling_method == N_SURFACEAREA) ? 1 : 0); -} - -inline int -Mapdesc::isPathLengthSampling( void ) -{ - return ((sampling_method == N_PATHLENGTH) ? 1 : 0); -} - -inline int -Mapdesc::isRangeSampling( void ) -{ - return ( isParametricDistanceSampling() || isPathLengthSampling() || - isSurfaceAreaSampling() || - isObjectSpaceParaSampling() || - isObjectSpacePathSampling()); -} - -inline int -Mapdesc::isSampling( void ) -{ - return isRangeSampling() || isConstantSampling() || isDomainSampling(); -} - -inline int -Mapdesc::isCulling( void ) -{ - return ((culling_method != N_NOCULLING) ? 1 : 0); -} - -inline int -Mapdesc::isBboxSubdividing( void ) -{ - return ((bbox_subdividing != N_NOBBOXSUBDIVISION) ? 1 : 0); -} -#endif /* __glumapdesc_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/mapdescv.cc b/src/glu/sgi/libnurbs/internals/mapdescv.cc deleted file mode 100644 index 35b38b141b7..00000000000 --- a/src/glu/sgi/libnurbs/internals/mapdescv.cc +++ /dev/null @@ -1,243 +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. -*/ - -/* - * mapdescv.c++ - * - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "mystring.h" -#include "mymath.h" -#include "nurbsconsts.h" -#include "mapdesc.h" - -/*-------------------------------------------------------------------------- - * calcPartialVelocity - calculate maximum magnitude of a given partial - * derivative - *-------------------------------------------------------------------------- - */ -REAL -Mapdesc::calcPartialVelocity ( - REAL *p, - int stride, - int ncols, - int partial, - REAL range ) -{ - REAL tmp[MAXORDER][MAXCOORDS]; - REAL mag[MAXORDER]; - - assert( ncols <= MAXORDER ); - - int j, k, t; - // copy inhomogeneous control points into temporary array - for( j=0; j != ncols; j++ ) - for( k=0; k != inhcoords; k++ ) - tmp[j][k] = p[j*stride + k]; - - for( t=0; t != partial; t++ ) - for( j=0; j != ncols-t-1; j++ ) - for( k=0; k != inhcoords; k++ ) - tmp[j][k] = tmp[j+1][k] - tmp[j][k]; - - // compute magnitude and store in mag array - for( j=0; j != ncols-partial; j++ ) { - mag[j] = 0.0; - for( k=0; k != inhcoords; k++ ) - mag[j] += tmp[j][k] * tmp[j][k]; - } - - // compute scale factor - REAL fac = 1; - REAL invt = 1.0 / range; - for( t = ncols-1; t != ncols-1-partial; t-- ) - fac *= t * invt; - - // compute max magnitude of all entries in array - REAL max = 0.0; - for( j=0; j != ncols-partial; j++ ) - if( mag[j] > max ) max = mag[j]; - max = fac * sqrtf( (float) max ); - - return max; -} - -/*-------------------------------------------------------------------------- - * calcPartialVelocity - calculate maximum magnitude of a given partial - * derivative - *-------------------------------------------------------------------------- - */ -REAL -Mapdesc::calcPartialVelocity ( - REAL *dist, - REAL *p, - int rstride, - int cstride, - int nrows, - int ncols, - int spartial, - int tpartial, - REAL srange, - REAL trange, - int side ) -{ - REAL tmp[MAXORDER][MAXORDER][MAXCOORDS]; - REAL mag[MAXORDER][MAXORDER]; - - assert( nrows <= MAXORDER ); - assert( ncols <= MAXORDER ); - - REAL *tp = &tmp[0][0][0]; - REAL *mp = &mag[0][0]; - const int istride = sizeof( tmp[0]) / sizeof( tmp[0][0][0] ); - const int jstride = sizeof( tmp[0][0]) / sizeof( tmp[0][0][0] ); - /* - const int kstride = sizeof( tmp[0][0][0]) / sizeof( tmp[0][0][0] ); - */ - const int mistride = sizeof( mag[0]) / sizeof( mag[0][0] ); - const int mjstride = sizeof( mag[0][0]) / sizeof( mag[0][0] ); - const int idist = nrows * istride; - const int jdist = ncols * jstride; - /* - const int kdist = inhcoords * kstride; - */ - const int id = idist - spartial * istride; - const int jd = jdist - tpartial * jstride; - - { - // copy control points - REAL *ti = tp; - REAL *qi = p; - REAL *til = tp + idist; - for( ; ti != til; ) { - REAL *tj = ti; - REAL *qj = qi; - REAL *tjl = ti + jdist; - for( ; tj != tjl; ) { - for( int k=0; k != inhcoords; k++ ) { - tj[k] = qj[k]; - } - tj += jstride; - qj += cstride; - } - ti += istride; - qi += rstride; - } - } - - { - // compute (s)-partial derivative control points - REAL *til = tp + idist - istride; - const REAL *till = til - ( spartial * istride ); - for( ; til != till; til -= istride ) - for( REAL *ti = tp; ti != til; ti += istride ) - for( REAL *tj = ti, *tjl = tj + jdist; tj != tjl; tj += jstride ) - for( int k=0; k != inhcoords; k++ ) - tj[k] = tj[k+istride] - tj[k]; - } - - { - // compute (s,t)-partial derivative control points - REAL *tjl = tp + jdist - jstride; - const REAL *tjll = tjl - ( tpartial * jstride ); - for( ; tjl != tjll; tjl -= jstride ) - for( REAL *tj = tp; tj != tjl; tj += jstride ) - for( REAL *ti = tj, *til = ti + id; ti != til; ti += istride ) - for( int k=0; k != inhcoords; k++ ) - ti[k] = ti[k+jstride] - ti[k]; - - } - - REAL max = 0.0; - { - // compute magnitude and store in mag array - memset( (void *) mp, 0, sizeof( mag ) ); - for( REAL *ti = tp, *mi = mp, *til = tp + id; ti != til; ti += istride, mi += mistride ) - for( REAL *tj = ti, *mj = mi, *tjl = ti + jd; tj != tjl; tj += jstride, mj += mjstride ) { - for( int k=0; k != inhcoords; k++ ) - *mj += tj[k] * tj[k]; - if( *mj > max ) max = *mj; - } - - } - - int i, j; - - // compute scale factor - REAL fac = 1.0; - { - REAL invs = 1.0 / srange; - REAL invt = 1.0 / trange; - for( int s = nrows-1, slast = s-spartial; s != slast; s-- ) - fac *= s * invs; - for( int t = ncols-1, tlast = t-tpartial; t != tlast; t-- ) - fac *= t * invt; - } - - if( side == 0 ) { - // compute max magnitude of first and last column - dist[0] = 0.0; - dist[1] = 0.0; - for( i=0; i != nrows-spartial; i++ ) { - j = 0; - if( mag[i][j] > dist[0] ) dist[0] = mag[i][j]; - - j = ncols-tpartial-1; - if( mag[i][j] > dist[1] ) dist[1] = mag[i][j]; - } - dist[0] = fac * sqrtf( dist[0] ); - dist[1] = fac * sqrtf( dist[1] ); - } else if( side == 1 ) { - // compute max magnitude of first and last row - dist[0] = 0.0; - dist[1] = 0.0; - for( j=0; j != ncols-tpartial; j++ ) { - i = 0; - if( mag[i][j] > dist[0] ) dist[0] = mag[i][j]; - - i = nrows-spartial-1; - if( mag[i][j] > dist[1] ) dist[1] = mag[i][j]; - } - dist[0] = fac * sqrtf( dist[0] ); - dist[1] = fac * sqrtf( dist[1] ); - } - - max = fac * sqrtf( (float) max ); - - return max; -} - diff --git a/src/glu/sgi/libnurbs/internals/maplist.cc b/src/glu/sgi/libnurbs/internals/maplist.cc deleted file mode 100644 index e51a3e85d0c..00000000000 --- a/src/glu/sgi/libnurbs/internals/maplist.cc +++ /dev/null @@ -1,116 +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. -*/ - -/* - * maplist.c++ - * - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "mymath.h" -#include "nurbsconsts.h" -#include "maplist.h" -#include "mapdesc.h" - -Maplist::Maplist( Backend& b ) - : mapdescPool( sizeof( Mapdesc ), 10, "mapdesc pool" ), - backend( b ) -{ - maps = 0; lastmap = &maps; -} - -void -Maplist::initialize( void ) -{ - freeMaps(); - define( N_P2D, 0, 2 ); - define( N_P2DR, 1, 3 ); -} - -void -Maplist::add( long type, int israt, int ncoords ) -{ - *lastmap = new(mapdescPool) Mapdesc( type, israt, ncoords, backend ); - lastmap = &((*lastmap)->next); -} - -void -Maplist::define( long type, int israt, int ncoords ) -{ -#ifndef NDEBUG // to avoid warning - Mapdesc *m = locate( type ); - assert( m == NULL || ( m->isrational == israt && m->ncoords == ncoords ) ); -#endif - add( type, israt, ncoords ); -} - -void -Maplist::remove( Mapdesc *m ) -{ - for( Mapdesc **curmap = &maps; *curmap; curmap = &((*curmap)->next) ) { - if( *curmap == m ) { - *curmap = m->next; - m->deleteMe( mapdescPool ); - return; - } - } - abort(); -} - -void -Maplist::freeMaps( void ) -{ - mapdescPool.clear(); - maps = 0; - lastmap = &maps; -} - -Mapdesc * -Maplist::find( long type ) -{ - Mapdesc *val = locate( type ); - assert( val != 0 ); - return val; -} - -Mapdesc * -Maplist::locate( long type ) -{ - Mapdesc *m; - for( m = maps; m; m = m->next ) - if( m->getType() == type ) break; - return m; -} diff --git a/src/glu/sgi/libnurbs/internals/maplist.h b/src/glu/sgi/libnurbs/internals/maplist.h deleted file mode 100644 index 49720e49b42..00000000000 --- a/src/glu/sgi/libnurbs/internals/maplist.h +++ /dev/null @@ -1,81 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * maplist.h - * - */ - -#ifndef __glumaplist_h_ -#define __glumaplist_h_ - -#include "types.h" -#include "defines.h" -#include "bufpool.h" - -class Backend; -class Mapdesc; - -class Maplist { -public: - Maplist( Backend & ); - void define( long, int, int ); - inline void undefine( long ); - inline int isMap( long ); - - void initialize( void ); - Mapdesc * find( long ); - Mapdesc * locate( long ); - -private: - Pool mapdescPool; - Mapdesc * maps; - Mapdesc ** lastmap; - Backend & backend; - - void add( long, int, int ); - void remove( Mapdesc * ); - void freeMaps( void ); -}; - -inline int -Maplist::isMap( long type ) -{ - return (locate( type ) ? 1 : 0); -} - -inline void -Maplist::undefine( long type ) -{ - Mapdesc *m = locate( type ); - assert( m != 0 ); - remove( m ); -} -#endif /* __glumaplist_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/mesher.cc b/src/glu/sgi/libnurbs/internals/mesher.cc deleted file mode 100644 index b2d83f41288..00000000000 --- a/src/glu/sgi/libnurbs/internals/mesher.cc +++ /dev/null @@ -1,489 +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. -*/ - -/* - * mesher.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "gridvertex.h" -#include "gridtrimvertex.h" -#include "jarcloc.h" -#include "gridline.h" -#include "trimline.h" -#include "uarray.h" -#include "backend.h" -#include "mesher.h" - - -const float Mesher::ZERO = 0.0; - -Mesher::Mesher( Backend& b ) - : backend( b ), - p( sizeof( GridTrimVertex ), 100, "GridTrimVertexPool" ) -{ - stacksize = 0; - vdata = 0; - last[0] = 0; - last[1] = 0; - itop = 0; - lastedge = 0; //needed to prevent purify UMR -} - -Mesher::~Mesher( void ) -{ - if( vdata ) delete[] vdata; -} - -void -Mesher::init( unsigned int npts ) -{ - p.clear(); - if( stacksize < npts ) { - stacksize = 2 * npts; - if( vdata ) delete[] vdata; - vdata = new GridTrimVertex_p[stacksize]; - } -} - -inline void -Mesher::push( GridTrimVertex *gt ) -{ - assert( itop+1 != (int)stacksize ); - vdata[++itop] = gt; -} - -inline void -Mesher::pop( long ) -{ -} - -inline void -Mesher::openMesh() -{ - backend.bgntmesh( "addedge" ); -} - -inline void -Mesher::closeMesh() -{ - backend.endtmesh(); -} - -inline void -Mesher::swapMesh() -{ - backend.swaptmesh(); -} - -inline void -Mesher::clearStack() -{ - itop = -1; - last[0] = 0; -} - -void -Mesher::finishLower( GridTrimVertex *gtlower ) -{ - for( push(gtlower); - nextlower( gtlower=new(p) GridTrimVertex ); - push(gtlower) ) - addLower(); - addLast(); -} - -void -Mesher::finishUpper( GridTrimVertex *gtupper ) -{ - for( push(gtupper); - nextupper( gtupper=new(p) GridTrimVertex ); - push(gtupper) ) - addUpper(); - addLast(); -} - -void -Mesher::mesh( void ) -{ - GridTrimVertex *gtlower, *gtupper; - - Hull::init( ); - nextupper( gtupper = new(p) GridTrimVertex ); - nextlower( gtlower = new(p) GridTrimVertex ); - - clearStack(); - openMesh(); - push(gtupper); - - nextupper( gtupper = new(p) GridTrimVertex ); - nextlower( gtlower ); - - assert( gtupper->t && gtlower->t ); - - if( gtupper->t->param[0] < gtlower->t->param[0] ) { - push(gtupper); - lastedge = 1; - if( nextupper( gtupper=new(p) GridTrimVertex ) == 0 ) { - finishLower(gtlower); - return; - } - } else if( gtupper->t->param[0] > gtlower->t->param[0] ) { - push(gtlower); - lastedge = 0; - if( nextlower( gtlower=new(p) GridTrimVertex ) == 0 ) { - finishUpper(gtupper); - return; - } - } else { - if( lastedge == 0 ) { - push(gtupper); - lastedge = 1; - if( nextupper(gtupper=new(p) GridTrimVertex) == 0 ) { - finishLower(gtlower); - return; - } - } else { - push(gtlower); - lastedge = 0; - if( nextlower( gtlower=new(p) GridTrimVertex ) == 0 ) { - finishUpper(gtupper); - return; - } - } - } - - while ( 1 ) { - if( gtupper->t->param[0] < gtlower->t->param[0] ) { - push(gtupper); - addUpper(); - if( nextupper( gtupper=new(p) GridTrimVertex ) == 0 ) { - finishLower(gtlower); - return; - } - } else if( gtupper->t->param[0] > gtlower->t->param[0] ) { - push(gtlower); - addLower(); - if( nextlower( gtlower=new(p) GridTrimVertex ) == 0 ) { - finishUpper(gtupper); - return; - } - } else { - if( lastedge == 0 ) { - push(gtupper); - addUpper(); - if( nextupper( gtupper=new(p) GridTrimVertex ) == 0 ) { - finishLower(gtlower); - return; - } - } else { - push(gtlower); - addLower(); - if( nextlower( gtlower=new(p) GridTrimVertex ) == 0 ) { - finishUpper(gtupper); - return; - } - } - } - } -} - -inline int -Mesher::isCcw( int ilast ) -{ - REAL area = det3( vdata[ilast]->t, vdata[itop-1]->t, vdata[itop-2]->t ); - return (area < ZERO) ? 0 : 1; -} - -inline int -Mesher::isCw( int ilast ) -{ - REAL area = det3( vdata[ilast]->t, vdata[itop-1]->t, vdata[itop-2]->t ); - return (area > -ZERO) ? 0 : 1; -} - -inline int -Mesher::equal( int x, int y ) -{ - return( last[0] == vdata[x] && last[1] == vdata[y] ); -} - -inline void -Mesher::copy( int x, int y ) -{ - last[0] = vdata[x]; last[1] = vdata[y]; -} - -inline void -Mesher::move( int x, int y ) -{ - vdata[x] = vdata[y]; -} - -inline void -Mesher::output( int x ) -{ - backend.tmeshvert( vdata[x] ); -} - -/*--------------------------------------------------------------------------- - * addedge - addedge an edge to the triangulation - * - * This code has been re-written to generate large triangle meshes - * from a monotone polygon. Although smaller triangle meshes - * could be generated faster and with less code, larger meshes - * actually give better SYSTEM performance. This is because - * vertices are processed in the backend slower than they are - * generated by this code and any decrease in the number of vertices - * results in a decrease in the time spent in the backend. - *--------------------------------------------------------------------------- - */ - -void -Mesher::addLast( ) -{ - register int ilast = itop; - - if( lastedge == 0 ) { - if( equal( 0, 1 ) ) { - output( ilast ); - swapMesh(); - for( register int i = 2; i < ilast; i++ ) { - swapMesh(); - output( i ); - } - copy( ilast, ilast-1 ); - } else if( equal( ilast-2, ilast-1) ) { - swapMesh(); - output( ilast ); - for( register int i = ilast-3; i >= 0; i-- ) { - output( i ); - swapMesh(); - } - copy( 0, ilast ); - } else { - closeMesh(); openMesh(); - output( ilast ); - output( 0 ); - for( register int i = 1; i < ilast; i++ ) { - swapMesh(); - output( i ); - } - copy( ilast, ilast-1 ); - } - } else { - if( equal( 1, 0) ) { - swapMesh(); - output( ilast ); - for( register int i = 2; i < ilast; i++ ) { - output( i ); - swapMesh(); - } - copy( ilast-1, ilast ); - } else if( equal( ilast-1, ilast-2) ) { - output( ilast ); - swapMesh(); - for( register int i = ilast-3; i >= 0; i-- ) { - swapMesh(); - output( i ); - } - copy( ilast, 0 ); - } else { - closeMesh(); openMesh(); - output( 0 ); - output( ilast ); - for( register int i = 1; i < ilast; i++ ) { - output( i ); - swapMesh(); - } - copy( ilast-1, ilast ); - } - } - closeMesh(); - //for( register long k=0; k<=ilast; k++ ) pop( k ); -} - -void -Mesher::addUpper( ) -{ - register int ilast = itop; - - if( lastedge == 0 ) { - if( equal( 0, 1 ) ) { - output( ilast ); - swapMesh(); - for( register int i = 2; i < ilast; i++ ) { - swapMesh(); - output( i ); - } - copy( ilast, ilast-1 ); - } else if( equal( ilast-2, ilast-1) ) { - swapMesh(); - output( ilast ); - for( register int i = ilast-3; i >= 0; i-- ) { - output( i ); - swapMesh(); - } - copy( 0, ilast ); - } else { - closeMesh(); openMesh(); - output( ilast ); - output( 0 ); - for( register int i = 1; i < ilast; i++ ) { - swapMesh(); - output( i ); - } - copy( ilast, ilast-1 ); - } - lastedge = 1; - //for( register long k=0; k<ilast-1; k++ ) pop( k ); - move( 0, ilast-1 ); - move( 1, ilast ); - itop = 1; - } else { - if( ! isCcw( ilast ) ) return; - do { - itop--; - } while( (itop > 1) && isCcw( ilast ) ); - - if( equal( ilast-1, ilast-2 ) ) { - output( ilast ); - swapMesh(); - for( register int i=ilast-3; i>=itop-1; i-- ) { - swapMesh(); - output( i ); - } - copy( ilast, itop-1 ); - } else if( equal( itop, itop-1 ) ) { - swapMesh(); - output( ilast ); - for( register int i = itop+1; i < ilast; i++ ) { - output( i ); - swapMesh(); - } - copy( ilast-1, ilast ); - } else { - closeMesh(); openMesh(); - output( ilast ); - output( ilast-1 ); - for( register int i=ilast-2; i>=itop-1; i-- ) { - swapMesh(); - output( i ); - } - copy( ilast, itop-1 ); - } - //for( register int k=itop; k<ilast; k++ ) pop( k ); - move( itop, ilast ); - } -} - -void -Mesher::addLower() -{ - register int ilast = itop; - - if( lastedge == 1 ) { - if( equal( 1, 0) ) { - swapMesh(); - output( ilast ); - for( register int i = 2; i < ilast; i++ ) { - output( i ); - swapMesh(); - } - copy( ilast-1, ilast ); - } else if( equal( ilast-1, ilast-2) ) { - output( ilast ); - swapMesh(); - for( register int i = ilast-3; i >= 0; i-- ) { - swapMesh(); - output( i ); - } - copy( ilast, 0 ); - } else { - closeMesh(); openMesh(); - output( 0 ); - output( ilast ); - for( register int i = 1; i < ilast; i++ ) { - output( i ); - swapMesh(); - } - copy( ilast-1, ilast ); - } - - lastedge = 0; - //for( register long k=0; k<ilast-1; k++ ) pop( k ); - move( 0, ilast-1 ); - move( 1, ilast ); - itop = 1; - } else { - if( ! isCw( ilast ) ) return; - do { - itop--; - } while( (itop > 1) && isCw( ilast ) ); - - if( equal( ilast-2, ilast-1) ) { - swapMesh(); - output( ilast ); - for( register int i=ilast-3; i>=itop-1; i--) { - output( i ); - swapMesh( ); - } - copy( itop-1, ilast ); - } else if( equal( itop-1, itop) ) { - output( ilast ); - swapMesh(); - for( register int i=itop+1; i<ilast; i++ ) { - swapMesh( ); - output( i ); - } - copy( ilast, ilast-1 ); - } else { - closeMesh(); openMesh(); - output( ilast-1 ); - output( ilast ); - for( register int i=ilast-2; i>=itop-1; i-- ) { - output( i ); - swapMesh( ); - } - copy( itop-1, ilast ); - } - //for( register int k=itop; k<ilast; k++ ) pop( k ); - move( itop, ilast ); - } -} - - diff --git a/src/glu/sgi/libnurbs/internals/mesher.h b/src/glu/sgi/libnurbs/internals/mesher.h deleted file mode 100644 index bb65d0f1c7d..00000000000 --- a/src/glu/sgi/libnurbs/internals/mesher.h +++ /dev/null @@ -1,83 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * mesher.h - * - */ - -#ifndef __glumesher_h_ -#define __glumesher_h_ - -#include "hull.h" - -class TrimRegion; -class Backend; -class Pool; -// struct GridTrimVertex; - - -class Mesher : virtual public TrimRegion, public Hull { -public: - Mesher( Backend & ); - ~Mesher( void ); - void init( unsigned int ); - void mesh( void ); - -private: - static const float ZERO; - Backend& backend; - - Pool p; - unsigned int stacksize; - GridTrimVertex ** vdata; - GridTrimVertex * last[2]; - int itop; - int lastedge; - - inline void openMesh( void ); - inline void swapMesh( void ); - inline void closeMesh( void ); - inline int isCcw( int ); - inline int isCw( int ); - inline void clearStack( void ); - inline void push( GridTrimVertex * ); - inline void pop( long ); - inline void move( int, int ); - inline int equal( int, int ); - inline void copy( int, int ); - inline void output( int ); - void addUpper( void ); - void addLower( void ); - void addLast( void ); - void finishUpper( GridTrimVertex * ); - void finishLower( GridTrimVertex * ); -}; -#endif /* __glumesher_h_ */ 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*/ -} diff --git a/src/glu/sgi/libnurbs/internals/monotonizer.cc b/src/glu/sgi/libnurbs/internals/monotonizer.cc deleted file mode 100644 index 5845d310bad..00000000000 --- a/src/glu/sgi/libnurbs/internals/monotonizer.cc +++ /dev/null @@ -1,260 +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. -*/ - -/* - * monotonizer.c++ - * - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "arc.h" -#include "arctess.h" -#include "bezierarc.h" -#include "bin.h" -#include "mapdesc.h" -#include "nurbsconsts.h" -#include "subdivider.h" - -/*----------------------------------------------------------------------------- - * Subdivider::decompose - break all curves into monotone arcs - *----------------------------------------------------------------------------- - */ -int -Subdivider::decompose( Bin& bin, REAL geo_stepsize ) -{ - Arc_ptr jarc; - for( jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - if( ! jarc->isTessellated() ) { - /* points have not been transformed, therefore they may be either - homogeneous or inhomogeneous */ - tessellate( jarc, geo_stepsize ); - if( jarc->isDisconnected() || jarc->next->isDisconnected() ) - return 1; - } - } - - for( jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - monotonize( jarc, bin ); - } - -#ifndef NDEBUG - for( jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - assert( isMonotone( jarc ) != 0 ); - } -#endif - - return 0; -} - -void -Subdivider::tessellate( Arc_ptr jarc, REAL geo_stepsize ) -{ - BezierArc *b = jarc->bezierArc; - Mapdesc *mapdesc = b->mapdesc; - - if( mapdesc->isRational() ) { - REAL max = mapdesc->calcVelocityRational( b->cpts, b->stride, b->order ); - REAL arc_stepsize = (max > 1.0) ? (1.0/max) : 1.0; - if( jarc->bezierArc->order != 2 ) - arctessellator.tessellateNonlinear( jarc, geo_stepsize, arc_stepsize, 1 ); - else { - arctessellator.tessellateLinear( jarc, geo_stepsize, arc_stepsize, 1 ); - } - } else { - REAL max = mapdesc->calcVelocityNonrational( b->cpts, b->stride, b->order ); - REAL arc_stepsize = (max > 1.0) ? (1.0/max) : 1.0; - if( jarc->bezierArc->order != 2 ) - arctessellator.tessellateNonlinear( jarc, geo_stepsize, arc_stepsize, 0 ); - else { - arctessellator.tessellateLinear( jarc, geo_stepsize, arc_stepsize, 0 ); - } - } -} - -/*------------------------------------------------------------------------- - * Subdivider::monotonize - break up a jordan arc into s,t-monotone - * components. This code will remove degenerate segments, including - * arcs of only a single point. - *------------------------------------------------------------------------- - */ -void -Subdivider::monotonize( Arc_ptr jarc, Bin& bin ) -{ - TrimVertex *firstvert = jarc->pwlArc->pts; - TrimVertex *lastvert = firstvert + (jarc->pwlArc->npts - 1); - long uid = jarc->nuid; - arc_side side = jarc->getside(); - dir sdir = none; - dir tdir = none; - int degenerate = 1; - - int nudegenerate; - int change; - - TrimVertex *vert; - for( vert = firstvert; vert != lastvert; vert++ ) { - - nudegenerate = 1; - change = 0; - - /* check change relative to s axis, clear degenerate bit if needed */ - REAL sdiff = vert[1].param[0] - vert[0].param[0]; - if( sdiff == 0 ) { - if( sdir != same ) { - sdir = same; - change = 1; - } - } else if( sdiff < 0.0 ) { - if( sdir != down ) { - sdir = down; - change = 1; - } - nudegenerate = 0; - } else { - if( sdir != up ) { - sdir = up; - change = 1; - } - nudegenerate = 0; - } - - /* check change relative to t axis, clear degenerate bit if needed */ - REAL tdiff = vert[1].param[1] - vert[0].param[1]; - if( tdiff == 0 ) { - if( tdir != same ) { - tdir = same; - change = 1; - } - } else if( tdiff < 0.0 ) { - if( tdir != down ) { - tdir = down; - change = 1; - } - nudegenerate = 0; - } else { - if( tdir != up ) { - tdir = up; - change = 1; - } - nudegenerate = 0; - } - - if( change ) { - if( ! degenerate ) { - /* make last segment into separate pwl curve */ - jarc->pwlArc->npts = vert - firstvert + 1; - jarc = (new(arcpool) Arc( side, uid ))->append( jarc ); - jarc->pwlArc = new(pwlarcpool) PwlArc(); - bin.addarc( jarc ); - } - firstvert = jarc->pwlArc->pts = vert; - degenerate = nudegenerate; - } - } - jarc->pwlArc->npts = vert - firstvert + 1; - - if( degenerate ) { - /* remove jarc from circularly linked list */ - jarc->prev->next = jarc->next; - jarc->next->prev = jarc->prev; - - assert( jarc->prev->check( ) != 0 ); - assert( jarc->next->check( ) != 0 ); - - /* remove jarc from bin */ - bin.remove_this_arc( jarc ); - - jarc->pwlArc->deleteMe( pwlarcpool ); jarc->pwlArc = 0; - jarc->deleteMe( arcpool ); - } -} - -/*------------------------------------------------------------------------- - * Subdivider::isMonotone - return true if arc is monotone AND non-degenerate - *------------------------------------------------------------------------- - */ -int -Subdivider::isMonotone( Arc_ptr jarc ) -{ - TrimVertex *firstvert = jarc->pwlArc->pts; - TrimVertex *lastvert = firstvert + (jarc->pwlArc->npts - 1); - - if( firstvert == lastvert ) return 1; - - TrimVertex *vert = firstvert; - enum dir sdir; - enum dir tdir; - - REAL diff = vert[1].param[0] - vert[0].param[0]; - if( diff == 0.0 ) - sdir = same; - else if( diff < 0.0 ) - sdir = down; - else - sdir = up; - - diff = vert[1].param[1] - vert[0].param[1]; - if( diff == 0.0 ) - tdir = same; - else if( diff < 0.0 ) - tdir = down; - else - tdir = up; - - if( (sdir == same) && (tdir == same) ) return 0; - - for( ++vert ; vert != lastvert; vert++ ) { - diff = vert[1].param[0] - vert[0].param[0]; - if( diff == 0.0 ) { - if( sdir != same ) return 0; - } else if( diff < 0.0 ) { - if( sdir != down ) return 0; - } else { - if( sdir != up ) return 0; - } - - diff = vert[1].param[1] - vert[0].param[1]; - if( diff == 0.0 ) { - if( tdir != same ) return 0; - } else if( diff < 0.0 ) { - if( tdir != down ) return 0; - } else { - if( tdir != up ) return 0; - } - } - return 1; -} - diff --git a/src/glu/sgi/libnurbs/internals/monotonizer.h b/src/glu/sgi/libnurbs/internals/monotonizer.h deleted file mode 100644 index e951084ff03..00000000000 --- a/src/glu/sgi/libnurbs/internals/monotonizer.h +++ /dev/null @@ -1,64 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * monotonizer.h - * - */ - -#ifndef __glumonotonizer_h_ -#define __glumonotonizer_h_ - -#include "mysetjmp.h" -#include "types.h" - -class Arc; -class ArcTessellator; -class Pool; -class Bin; -class PwlArcPool; -class Mapdesc; - -class Monotonizer { - ArcTessellator& arctessellator; - Pool& arcpool; - Pool& pwlarcpool; - jmp_buf& nurbsJmpBuf; - - enum dir { down, same, up, none }; - void tessellate( Arc *, REAL ); - void monotonize( Arc *, Bin & ); - int isMonotone( Arc * ); -public: - Monotonizer( ArcTessellator& at, Pool& ap, Pool& p, jmp_buf& j ) - : arctessellator(at), arcpool(ap), pwlarcpool(p), nurbsJmpBuf(j) {} - int decompose( Bin &, REAL ); -}; -#endif /* __glumonotonizer_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/myassert.h b/src/glu/sgi/libnurbs/internals/myassert.h deleted file mode 100644 index cbd6006f55c..00000000000 --- a/src/glu/sgi/libnurbs/internals/myassert.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * myassert.h - * - */ - -#ifndef __glumyassert_h_ -#define __glumyassert_h_ - -#ifdef STANDALONE -#define assert(EX) ((void)0) -#endif - -#ifdef LIBRARYBUILD -#include <assert.h> -#endif - -#ifdef GLBUILD -#define assert(EX) ((void)0) -#endif - -#endif /* __glumyassert_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/mycode.cc b/src/glu/sgi/libnurbs/internals/mycode.cc deleted file mode 100644 index 3625cacd74f..00000000000 --- a/src/glu/sgi/libnurbs/internals/mycode.cc +++ /dev/null @@ -1,67 +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 "mymath.h" - -#ifdef NEEDCEILF - -float ceilf( float x ) -{ - if( x < 0 ) { - float nx = -x; - int ix = (int) nx; - return (float) -ix; - } else { - int ix = (int) x; - if( x == (float) ix ) return x; - return (float) (ix+1); - } -} - -float floorf( float x ) -{ - if( x < 0 ) { - float nx = -x; - int ix = (int) nx; - if( nx == (float) ix ) return x; - return (float) -(ix+1); - } else { - int ix = (int) x; - return (float) ix; - } -} -#endif diff --git a/src/glu/sgi/libnurbs/internals/mymath.h b/src/glu/sgi/libnurbs/internals/mymath.h deleted file mode 100644 index 17ef7237fe2..00000000000 --- a/src/glu/sgi/libnurbs/internals/mymath.h +++ /dev/null @@ -1,68 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * mymath.h - * - */ - -#ifndef __glumymath_h_ -#define __glumymath_h_ - -#ifdef GLBUILD -#define sqrtf gl_fsqrt -#endif - -#if defined(GLBUILD) || defined(STANDALONE) -#define M_SQRT2 1.41421356237309504880 -#define ceilf myceilf -#define floorf myfloorf -#define sqrtf sqrt -extern "C" double sqrt(double); -extern "C" float ceilf(float); -extern "C" float floorf(float); -#define NEEDCEILF -#endif - -#ifdef LIBRARYBUILD -#include <math.h> -#endif - -#if !defined sqrtf -# define sqrtf(x) ((float)sqrt(x)) -#endif -#if !defined ceilf -# define ceilf(x) ((float)ceil(x)) -#endif -#if !defined floorf -# define floorf(x) ((float)floor(x)) -#endif - -#endif /* __glumymath_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/mysetjmp.h b/src/glu/sgi/libnurbs/internals/mysetjmp.h deleted file mode 100644 index 2a3f6a87b3a..00000000000 --- a/src/glu/sgi/libnurbs/internals/mysetjmp.h +++ /dev/null @@ -1,85 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * mysetjmp.h - * - */ - -#ifndef __glumysetjmp_h_ -#define __glumysetjmp_h_ - -#ifdef STANDALONE -struct JumpBuffer; -extern "C" JumpBuffer *newJumpbuffer( void ); -extern "C" void deleteJumpbuffer(JumpBuffer *); -extern "C" void mylongjmp( JumpBuffer *, int ); -extern "C" int mysetjmp( JumpBuffer * ); -#endif - -#ifdef GLBUILD -#define setjmp gl_setjmp -#define longjmp gl_longjmp -#endif - -#if defined(LIBRARYBUILD) || defined(GLBUILD) -#include <setjmp.h> -#include <stdlib.h> - -struct JumpBuffer { - jmp_buf buf; -}; - -inline JumpBuffer * -newJumpbuffer( void ) -{ - return (JumpBuffer *) malloc( sizeof( JumpBuffer ) ); -} - -inline void -deleteJumpbuffer(JumpBuffer *jb) -{ - free( (void *) jb); -} - -inline void -mylongjmp( JumpBuffer *j, int code ) -{ - ::longjmp( j->buf, code ); -} - -inline int -mysetjmp( JumpBuffer *j ) -{ - return setjmp( j->buf ); -} -#endif - -#endif /* __glumysetjmp_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/mystring.h b/src/glu/sgi/libnurbs/internals/mystring.h deleted file mode 100644 index d2952da894e..00000000000 --- a/src/glu/sgi/libnurbs/internals/mystring.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * mystring.h - * - */ - -#ifndef __glumystring_h_ -#define __glumystring_h_ - -#ifdef STANDALONE -typedef unsigned int size_t; -extern "C" void * memcpy(void *, const void *, size_t); -extern "C" void * memset(void *, int, size_t); -#endif - -#ifdef GLBUILD -#define memcpy(a,b,c) bcopy(b,a,c) -#define memset(a,b,c) bzero(a,c) -extern "C" void bcopy(const void *, void *, int); -extern "C" void bzero(void *, int); -#endif - -#ifdef LIBRARYBUILD -#include <string.h> -#endif - -#endif /* __glumystring_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/nurbsconsts.h b/src/glu/sgi/libnurbs/internals/nurbsconsts.h deleted file mode 100644 index acc5d7f31f6..00000000000 --- a/src/glu/sgi/libnurbs/internals/nurbsconsts.h +++ /dev/null @@ -1,120 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * nurbsconsts.h - * - */ - -#ifndef __glunurbsconsts_h_ -#define __glunurbsconsts_h_ - -/* NURBS Properties - one set per map, - each takes a single INREAL arg */ -#define N_SAMPLING_TOLERANCE 1 -#define N_S_RATE 6 -#define N_T_RATE 7 -#define N_CLAMPFACTOR 13 -#define N_NOCLAMPING 0.0 -#define N_MINSAVINGS 14 -#define N_NOSAVINGSSUBDIVISION 0.0 - -/* NURBS Properties - one set per map, - each takes an enumerated value */ -#define N_CULLING 2 -#define N_NOCULLING 0.0 -#define N_CULLINGON 1.0 -#define N_SAMPLINGMETHOD 10 -#define N_NOSAMPLING 0.0 -#define N_FIXEDRATE 3.0 -#define N_DOMAINDISTANCE 2.0 -#define N_PARAMETRICDISTANCE 5.0 -#define N_PATHLENGTH 6.0 -#define N_SURFACEAREA 7.0 -#define N_OBJECTSPACE_PARA 8.0 -#define N_OBJECTSPACE_PATH 9.0 -#define N_BBOX_SUBDIVIDING 17 -#define N_NOBBOXSUBDIVISION 0.0 -#define N_BBOXTIGHT 1.0 -#define N_BBOXROUND 2.0 - -/* NURBS Rendering Properties - one set per renderer - each takes an enumerated value */ -#define N_DISPLAY 3 -#define N_FILL 1.0 -#define N_OUTLINE_POLY 2.0 -#define N_OUTLINE_TRI 3.0 -#define N_OUTLINE_QUAD 4.0 -#define N_OUTLINE_PATCH 5.0 -#define N_OUTLINE_PARAM 6.0 -#define N_OUTLINE_PARAM_S 7.0 -#define N_OUTLINE_PARAM_ST 8.0 -#define N_OUTLINE_SUBDIV 9.0 -#define N_OUTLINE_SUBDIV_S 10.0 -#define N_OUTLINE_SUBDIV_ST 11.0 -#define N_ISOLINE_S 12.0 -#define N_ERRORCHECKING 4 -#define N_NOMSG 0.0 -#define N_MSG 1.0 - -/* GL 4.0 propeties not defined above */ -#ifndef N_PIXEL_TOLERANCE -#define N_PIXEL_TOLERANCE N_SAMPLING_TOLERANCE -#define N_ERROR_TOLERANCE 20 -#define N_SUBDIVISIONS 5 -#define N_TILES 8 -#define N_TMP1 9 -#define N_TMP2 N_SAMPLINGMETHOD -#define N_TMP3 11 -#define N_TMP4 12 -#define N_TMP5 N_CLAMPFACTOR -#define N_TMP6 N_MINSAVINGS -#define N_S_STEPS N_S_RATE -#define N_T_STEPS N_T_RATE -#endif - -/* NURBS Rendering Properties - one set per map, - each takes an INREAL matrix argument */ -#define N_CULLINGMATRIX 1 -#define N_SAMPLINGMATRIX 2 -#define N_BBOXMATRIX 3 - - -/* NURBS Rendering Properties - one set per map, - each takes an INREAL vector argument */ -#define N_BBOXSIZE 4 - -/* type argument for trimming curves */ -#ifndef N_P2D -#define N_P2D 0x8 -#define N_P2DR 0xd -#endif - -#endif /* __glunurbsconsts_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/nurbsinterfac.cc b/src/glu/sgi/libnurbs/internals/nurbsinterfac.cc deleted file mode 100644 index 520bd419ea2..00000000000 --- a/src/glu/sgi/libnurbs/internals/nurbsinterfac.cc +++ /dev/null @@ -1,537 +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. -*/ - -/* - * nurbsinterfac.c++ - * - */ - -#include "glimports.h" -#include "mystdio.h" -#include "nurbsconsts.h" -#include "nurbstess.h" -#include "bufpool.h" -#include "quilt.h" -#include "displaylist.h" -#include "knotvector.h" -#include "mapdesc.h" - -#define THREAD( work, arg, cleanup ) \ - if( dl ) {\ - arg->save = 1;\ - dl->append( (PFVS)&NurbsTessellator::work, (void *) arg, (PFVS)&NurbsTessellator::cleanup );\ - } else {\ - arg->save = 0;\ - work( arg );\ - } - -#define THREAD2( work ) \ - if( dl ) {\ - dl->append( (PFVS)&NurbsTessellator::work, 0, 0 );\ - } else {\ - work( );\ - } - -NurbsTessellator::NurbsTessellator( BasicCurveEvaluator &c, BasicSurfaceEvaluator& e) - : maplist( backend ), - backend( c, e ), - subdivider( renderhints, backend ), - o_pwlcurvePool( sizeof( O_pwlcurve ), 32, "o_pwlcurvePool" ), - o_nurbscurvePool( sizeof( O_nurbscurve ), 32, "o_nurbscurvePool"), - o_curvePool( sizeof( O_curve ), 32, "o_curvePool" ), - o_trimPool( sizeof( O_trim ), 32, "o_trimPool" ), - o_surfacePool( sizeof( O_surface ), 1, "o_surfacePool" ), - o_nurbssurfacePool( sizeof( O_nurbssurface ), 4, "o_nurbssurfacePool" ), - propertyPool( sizeof( Property ), 32, "propertyPool" ), - quiltPool( sizeof( Quilt ), 32, "quiltPool" ) -{ - dl = 0; - inSurface = 0; - inCurve = 0; - inTrim = 0; - playBack = 0; - jumpbuffer = newJumpbuffer(); - subdivider.setJumpbuffer( jumpbuffer ); -} - -NurbsTessellator::~NurbsTessellator( void ) -{ - if( inTrim ) { - do_nurbserror( 12 ); - endtrim(); - } - - if( inSurface ) { - *nextNurbssurface = 0; - do_freeall(); - } - - if (jumpbuffer) { - deleteJumpbuffer(jumpbuffer); - jumpbuffer= 0; - } -} - -/*----------------------------------------------------------------------------- - * bgnsurface - allocate and initialize an o_surface structure - * - * Client: GL user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::bgnsurface( long nuid ) -{ - O_surface *o_surface = new(o_surfacePool) O_surface; - o_surface->nuid = nuid; - THREAD( do_bgnsurface, o_surface, do_freebgnsurface ); -} - -/*----------------------------------------------------------------------------- - * bgncurve - allocate an initialize an o_curve structure - * - * Client: GL user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::bgncurve( long nuid ) -{ - O_curve *o_curve = new(o_curvePool) O_curve; - o_curve->nuid = nuid; - THREAD( do_bgncurve, o_curve, do_freebgncurve ); -} -/*----------------------------------------------------------------------------- - * endcurve - - * - * Client: - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::endcurve( void ) -{ - THREAD2( do_endcurve ); -} - -/*----------------------------------------------------------------------------- - * endsurface - user level end of surface call - * - * Client: GL user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::endsurface( void ) -{ - THREAD2( do_endsurface ); -} - - -/*----------------------------------------------------------------------------- - * bgntrim - allocate and initialize a new trim loop structure (o_trim ) - * - * Client: GL user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::bgntrim( void ) -{ - O_trim *o_trim = new(o_trimPool) O_trim; - THREAD( do_bgntrim, o_trim, do_freebgntrim ); -} - -/*----------------------------------------------------------------------------- - * endtrim - - * - * Client: GL user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::endtrim( void ) -{ - THREAD2( do_endtrim ); -} - - -/*----------------------------------------------------------------------------- - * pwlcurve - - * - * count - number of points on curve - * array - array of points on curve - * byte_stride - distance between points in bytes - * type - valid data flag - * - * Client: Gl user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::pwlcurve( long count, INREAL array[], long byte_stride, long type ) -{ - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) { - do_nurbserror( 35 ); - isDataValid = 0; - return; - } - - if ( (type != N_P2D) && (type != N_P2DR) ) { - do_nurbserror( 22 ); - isDataValid = 0; - return; - } - if( count < 0 ) { - do_nurbserror( 33 ); - isDataValid = 0; - return; - } - if( byte_stride < 0 ) { - do_nurbserror( 34 ); - isDataValid = 0; - return; - } - -#ifdef NOTDEF - if( mapdesc->isRational() ) { - INREAL *p = array; - INREAL x = p[0]; INREAL y = p[1]; INREAL w = p[2]; - p = (INREAL *) (((char *) p) + byte_stride); - for( long i = 1; i != count; i++ ) { - if( p[0] == x && p[1] == y && p[2] == w ) break; - x = p[0]; y = p[1]; w = p[2]; - p = (INREAL *) (((char *) p) + byte_stride); - } - if( i != count ) { - do_nurbserror( 37 ); - _glu_dprintf( "point %d (%f,%f)\n", i, x, y ); - isDataValid = 0; - return; - } - } else { - INREAL *p = array; - INREAL x = p[0]; INREAL y = p[1]; - p = (INREAL *) (((char *) p) + byte_stride); - for( long i = 1; i != count; i++ ) { - if( p[0] == x && p[1] == y ) break; - x = p[0]; y = p[1]; - p = (INREAL *) (((char *) p) + byte_stride); - } - if( i != count ) { - do_nurbserror( 37 ); - _glu_dprintf( "point %d (%f,%f)\n", i, x, y ); - isDataValid = 0; - return; - } - } -#endif - - O_pwlcurve *o_pwlcurve = new(o_pwlcurvePool) O_pwlcurve( type, count, array, byte_stride, extTrimVertexPool.get((int)count) ); - THREAD( do_pwlcurve, o_pwlcurve, do_freepwlcurve ); -} - - -/*----------------------------------------------------------------------------- - * nurbscurve - - * - * Client: GL user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::nurbscurve( - long nknots, /* number of p knots */ - INREAL knot[], /* nondecreasing knot values in p */ - long byte_stride, /* distance in bytes between control points */ - INREAL ctlarray[], /* pointer to first control point */ - long order, /* order of spline */ - long type ) /* description of range space */ -{ - - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) { - do_nurbserror( 35 ); - isDataValid = 0; - return; - } - - if( ctlarray == 0 ) { - do_nurbserror( 36 ); - isDataValid = 0; - return; - } - - if( byte_stride < 0 ) { - do_nurbserror( 34 ); - isDataValid = 0; - return; - } - - Knotvector knots; - - knots.init( nknots, byte_stride, order, knot ); - if( do_check_knots( &knots, "curve" ) ) return; - - O_nurbscurve *o_nurbscurve = new(o_nurbscurvePool) O_nurbscurve(type); - o_nurbscurve->bezier_curves = new(quiltPool) Quilt(mapdesc); - o_nurbscurve->bezier_curves->toBezier( knots,ctlarray, mapdesc->getNcoords() ); - - THREAD( do_nurbscurve, o_nurbscurve, do_freenurbscurve ); -} - - -/*----------------------------------------------------------------------------- - * nurbssurface - - * - * Client: User routine - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::nurbssurface( - long sknot_count, /* number of s knots */ - INREAL sknot[], /* nondecreasing knot values in s */ - long tknot_count, /* number of t knots */ - INREAL tknot[], /* nondecreasing knot values in t */ - long s_byte_stride, /* s step size in memory bytes */ - long t_byte_stride, /* t step size in memory bytes */ - INREAL ctlarray[], /* pointer to first control point */ - long sorder, /* order of the spline in s parameter */ - long torder, /* order of the spline in t parameter */ - long type) /* description of range space */ -{ - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) { - do_nurbserror( 35 ); - isDataValid = 0; - return; - } - - if( s_byte_stride < 0 ) { - do_nurbserror( 34 ); - isDataValid = 0; - return; - } - - if( t_byte_stride < 0 ) { - do_nurbserror( 34 ); - isDataValid = 0; - return; - } - - Knotvector sknotvector, tknotvector; - - sknotvector.init( sknot_count, s_byte_stride, sorder, sknot ); - if( do_check_knots( &sknotvector, "surface" ) ) return; - - tknotvector.init( tknot_count, t_byte_stride, torder, tknot ); - if( do_check_knots( &tknotvector, "surface" ) ) return; - - O_nurbssurface *o_nurbssurface = new(o_nurbssurfacePool) O_nurbssurface(type); - o_nurbssurface->bezier_patches = new(quiltPool) Quilt(mapdesc); - - o_nurbssurface->bezier_patches->toBezier( sknotvector, tknotvector, - ctlarray, mapdesc->getNcoords() ); - THREAD( do_nurbssurface, o_nurbssurface, do_freenurbssurface ); -} - - -/*----------------------------------------------------------------------------- - * setnurbsproperty - - * - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::setnurbsproperty( long tag, INREAL value ) -{ - if( ! renderhints.isProperty( tag ) ) { - do_nurbserror( 26 ); - } else { - Property *prop = new(propertyPool) Property( tag, value ); - THREAD( do_setnurbsproperty, prop, do_freenurbsproperty ); - } -} - -/*----------------------------------------------------------------------------- - * setnurbsproperty - - * - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::setnurbsproperty( long type, long tag, INREAL value ) -{ - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) { - do_nurbserror( 35 ); - return; - } - - if( ! mapdesc->isProperty( tag ) ) { - do_nurbserror( 26 ); - return; - } - - Property *prop = new(propertyPool) Property( type, tag, value ); - THREAD( do_setnurbsproperty2, prop, do_freenurbsproperty ); -} - - -/*----------------------------------------------------------------------------- - * getnurbsproperty - - * - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::getnurbsproperty( long tag, INREAL *value ) -{ - if( renderhints.isProperty( tag ) ) { - *value = renderhints.getProperty( tag ); - } else { - do_nurbserror( 26 ); - } -} - -/*----------------------------------------------------------------------------- - * getnurbsproperty - - * - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::getnurbsproperty( long type, long tag, INREAL *value ) -{ - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) - do_nurbserror( 35 ); - - if( mapdesc->isProperty( tag ) ) { - *value = mapdesc->getProperty( tag ); - } else { - do_nurbserror( 26 ); - } -} - -/*-------------------------------------------------------------------------- - * setnurbsproperty - accept a user supplied matrix as culling or sampling mat - *-------------------------------------------------------------------------- - */ - -void -NurbsTessellator::setnurbsproperty( long type, long purpose, INREAL *mat ) -{ - // XXX - cannot be put in display list - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) { - do_nurbserror( 35 ); - isDataValid = 0; - } else if( purpose == N_BBOXSIZE ) { - mapdesc->setBboxsize( mat ); - } else { -#ifndef NDEBUG - _glu_dprintf( "ERRORRORRORR!!!\n"); -#endif - } -} - -/*-------------------------------------------------------------------------- - * setnurbsproperty - accept a user supplied matrix as culling or sampling mat - *-------------------------------------------------------------------------- - */ - -void -NurbsTessellator::setnurbsproperty( long type, long purpose, INREAL *mat, - long rstride, long cstride ) -{ - // XXX - cannot be put in display list - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) { - do_nurbserror( 35 ); - isDataValid = 0; - } else if( purpose == N_CULLINGMATRIX ) { - mapdesc->setCmat( mat, rstride, cstride ); - } else if( purpose == N_SAMPLINGMATRIX ) { - mapdesc->setSmat( mat, rstride, cstride ); - } else if( purpose == N_BBOXMATRIX ) { - mapdesc->setBmat( mat, rstride, cstride ); - } else { -#ifndef NDEBUG - _glu_dprintf( "ERRORRORRORR!!!\n"); -#endif - } -} - -void -NurbsTessellator::redefineMaps( void ) -{ - maplist.initialize(); -} - -void -NurbsTessellator::defineMap( long type, long rational, long ncoords ) -{ - maplist.define( type, (int) rational, (int) ncoords ); -} - -void -NurbsTessellator::discardRecording( void *_dl ) -{ - delete (DisplayList *) _dl; -} - -void * -NurbsTessellator::beginRecording( void ) -{ - dl = new DisplayList( this ); - return (void *) dl; -} - -void -NurbsTessellator::endRecording( void ) -{ - dl->endList(); - dl = 0; -} - -void -NurbsTessellator::playRecording( void *_dl ) -{ - playBack = 1; - bgnrender(); - ((DisplayList *)_dl)->play(); - endrender(); - playBack = 0; -} - diff --git a/src/glu/sgi/libnurbs/internals/nurbstess.cc b/src/glu/sgi/libnurbs/internals/nurbstess.cc deleted file mode 100644 index e477a8c8334..00000000000 --- a/src/glu/sgi/libnurbs/internals/nurbstess.cc +++ /dev/null @@ -1,691 +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. -*/ - -/* - * nurbstess.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mysetjmp.h" -#include "mystdio.h" -#include "nurbsconsts.h" -#include "nurbstess.h" -#include "bufpool.h" -#include "quilt.h" -#include "knotvector.h" -#include "mapdesc.h" -#include "maplist.h" - -void -NurbsTessellator::set_domain_distance_u_rate(REAL u_rate) -{ - subdivider.set_domain_distance_u_rate(u_rate); -} - -void -NurbsTessellator::set_domain_distance_v_rate(REAL v_rate) -{ - subdivider.set_domain_distance_v_rate(v_rate); -} - -void -NurbsTessellator::set_is_domain_distance_sampling(int flag) -{ - subdivider.set_is_domain_distance_sampling(flag); -} - -void -NurbsTessellator::resetObjects( void ) -{ - subdivider.clear(); -} - -void -NurbsTessellator::makeobj( int ) -{ -#ifndef NDEBUG - _glu_dprintf( "makeobj\n" ); -#endif -} - -void -NurbsTessellator::closeobj( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "closeobj\n" ); -#endif -} - -void -NurbsTessellator::bgnrender( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "bgnrender\n" ); -#endif -} - -void -NurbsTessellator::endrender( void ) -{ -#ifndef NDEBUG - _glu_dprintf( "endrender\n" ); -#endif -} - -/*----------------------------------------------------------------------------- - * do_freebgnsurface - free o_surface structure - * - * Client: do_freeall(), bgnsurface() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_freebgnsurface( O_surface *o_surface ) -{ - o_surface->deleteMe( o_surfacePool ); -} - - -/*----------------------------------------------------------------------------- - * do_bgnsurface - begin the display of a surface - * - * Client: bgnsurface() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_bgnsurface( O_surface *o_surface ) -{ - if( inSurface ) { - do_nurbserror( 27 ); - endsurface(); - } - inSurface = 1; - - if( ! playBack ) bgnrender(); - - isTrimModified = 0; - isSurfaceModified = 0; - isDataValid = 1; - numTrims = 0; - currentSurface = o_surface; - nextTrim = &( currentSurface->o_trim ); - nextNurbssurface = &( currentSurface->o_nurbssurface ); -} - -/*----------------------------------------------------------------------------- - * do_bgncurve - begin the display of a curve - * - * Client: bgncurve() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_bgncurve( O_curve *o_curve ) -{ - if ( inCurve ) { - do_nurbserror( 6 ); - endcurve(); - } - - inCurve = 1; - currentCurve = o_curve; - currentCurve->curvetype = ct_none; - - if( inTrim ) { - if( *nextCurve != o_curve ) { - isCurveModified = 1; - *nextCurve = o_curve; - } - } else { - if( ! playBack ) bgnrender(); - isDataValid = 1; - } - nextCurve = &(o_curve->next); - nextPwlcurve = &(o_curve->curve.o_pwlcurve); - nextNurbscurve = &(o_curve->curve.o_nurbscurve); -} - -/*----------------------------------------------------------------------------- - * do_endcurve - - * - * Client: endcurve() - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::do_endcurve( void ) -{ - if( ! inCurve ) { - do_nurbserror( 7 ); - return; - } - inCurve = 0; - - *nextCurve = 0; - if (currentCurve->curvetype == ct_nurbscurve) - *nextNurbscurve = 0; - else - *nextPwlcurve = 0; - - if ( ! inTrim ) { - if( ! isDataValid ) { - do_freecurveall( currentCurve ); - return; - } - - int errval; - errval = ::mysetjmp( jumpbuffer ); - if( errval == 0 ) { - if( currentCurve->curvetype == ct_nurbscurve ) { - subdivider.beginQuilts(); - for( O_nurbscurve *n = currentCurve->curve.o_nurbscurve; n != 0; n = n->next ) - subdivider.addQuilt( n->bezier_curves ); - subdivider.endQuilts(); - subdivider.drawCurves(); - if( ! playBack ) endrender(); - } else { - /* XXX */ - if( ! playBack ) endrender(); - /*do_draw_pwlcurve( currentCurve->curve.o_pwlcurve ) */; - do_nurbserror( 9 ); - } - } else { - if( ! playBack ) endrender(); - do_nurbserror( errval ); - } - do_freecurveall( currentCurve ); - resetObjects(); - } -} - -/*----------------------------------------------------------------------------- - * do_endsurface - mark end of surface, display surface, free immediate data - * - * Client: - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_endsurface( void ) -{ - if( inTrim ) { - do_nurbserror( 12 ); - endtrim(); - } - - if( ! inSurface ) { - do_nurbserror( 13 ); - return; - } - inSurface = 0; - - *nextNurbssurface = 0; - - if( ! isDataValid ) { - do_freeall( ); - return; - } - - if( *nextTrim != 0 ) { - isTrimModified = 1; - *nextTrim = 0; - } - - int errval; - - errval = ::mysetjmp( jumpbuffer ); - if( errval == 0 ) { - if( numTrims > 0 ) { - - subdivider.beginTrims(); - for( O_trim *trim = currentSurface->o_trim; trim; trim = trim->next ) { - subdivider.beginLoop(); - for( O_curve *curve = trim->o_curve; curve; curve = curve->next ) { - curve->used = 0; - assert( curve->curvetype != ct_none ); - if (curve->curvetype == ct_pwlcurve) { - O_pwlcurve *c = curve->curve.o_pwlcurve; - subdivider.addArc( c->npts, c->pts, curve->nuid ); - } else { - Quilt *quilt = curve->curve.o_nurbscurve->bezier_curves; - Quiltspec *qspec = quilt->qspec; - REAL *cpts = quilt->cpts + qspec->offset; - REAL *cptsend = cpts + (qspec->width * qspec->order * qspec->stride); - for( ; cpts != cptsend; cpts += qspec->order*qspec->stride ) - subdivider.addArc( cpts, quilt, curve->nuid ); - } - } - subdivider.endLoop(); - } - subdivider.endTrims(); - } - - subdivider.beginQuilts(); - for( O_nurbssurface *n = currentSurface->o_nurbssurface; n; n = n->next ) - subdivider.addQuilt( n->bezier_patches ); - subdivider.endQuilts(); - subdivider.drawSurfaces( currentSurface->nuid ); - if( ! playBack ) endrender(); - } else { - if( ! playBack ) endrender(); - do_nurbserror( errval ); - } - - do_freeall( ); - resetObjects(); -} - -/*----------------------------------------------------------------------------- - * do_freeall - free all data allocated in immediate mode - * - * Client: - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_freeall( void ) -{ - for( O_trim *o_trim = currentSurface->o_trim; o_trim; ) { - O_trim *next_o_trim = o_trim->next; - for( O_curve *curve = o_trim->o_curve; curve; ) { - O_curve *next_o_curve = curve->next; - do_freecurveall( curve ); - curve = next_o_curve; - } - if( o_trim->save == 0 ) do_freebgntrim( o_trim ); - o_trim = next_o_trim; - } - - O_nurbssurface *nurbss, *next_nurbss; - for( nurbss= currentSurface->o_nurbssurface; nurbss; nurbss = next_nurbss) { - next_nurbss = nurbss->next; - if( nurbss->save == 0 ) - do_freenurbssurface( nurbss ); - else - nurbss->used = 0; - } - - if( currentSurface->save == 0 ) do_freebgnsurface( currentSurface ); -} - -void -NurbsTessellator::do_freecurveall( O_curve *curve ) -{ - assert( curve->curvetype != ct_none ); - - if( curve->curvetype == ct_nurbscurve ) { - O_nurbscurve *ncurve, *next_ncurve; - for( ncurve=curve->curve.o_nurbscurve; ncurve; ncurve=next_ncurve ) { - next_ncurve = ncurve->next; - if( ncurve->save == 0 ) - do_freenurbscurve( ncurve ); - else - ncurve->used = 0; - } - } else { - O_pwlcurve *pcurve, *next_pcurve; - for( pcurve=curve->curve.o_pwlcurve; pcurve; pcurve=next_pcurve ) { - next_pcurve = pcurve->next; - if( pcurve->save == 0 ) - do_freepwlcurve( pcurve ); - else - pcurve->used = 0; - } - } - if( curve->save == 0 ) - do_freebgncurve( curve ); -} - - -/*----------------------------------------------------------------------------- - * do_freebgntrim - free the space allocated for a trim loop - * - * Client: - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_freebgntrim( O_trim *o_trim ) -{ - o_trim->deleteMe( o_trimPool ); -} - - -/*----------------------------------------------------------------------------- - * do_bgntrim - link in a trim loop to the current trimmed surface description - * - * Client: bgntrim() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_bgntrim( O_trim *o_trim ) -{ - - if( ! inSurface ) { - do_nurbserror( 15 ); - bgnsurface( 0 ); - inSurface = 2; - } - - if( inTrim ) { - do_nurbserror( 16 ); - endtrim(); - } - inTrim = 1; - - if( *nextTrim != o_trim ) { - isTrimModified = 1; - *nextTrim = o_trim; - } - - currentTrim = o_trim; - nextTrim = &(o_trim->next); - nextCurve = &(o_trim->o_curve); -} - - -/*----------------------------------------------------------------------------- - * do_endtrim - mark the end of the current trim loop - * - * Client: endtrim() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_endtrim( void ) -{ - if( ! inTrim ) { - do_nurbserror( 17 ); - return; - } - inTrim = 0; - - if( currentTrim->o_curve == 0 ) { - do_nurbserror( 18 ); - isDataValid = 0; - } - - numTrims++; - - if( *nextCurve != 0 ) { - isTrimModified = 1; - *nextCurve = 0; - } -} - -/*----------------------------------------------------------------------------- - * do_freepwlcurve - - * - * Client: - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_freepwlcurve( O_pwlcurve *o_pwlcurve ) -{ - o_pwlcurve->deleteMe( o_pwlcurvePool ); -} - -void -NurbsTessellator::do_freebgncurve( O_curve *o_curve ) -{ - o_curve->deleteMe( o_curvePool ); -} - -/*----------------------------------------------------------------------------- - * do_pwlcurve - link in pwl trim loop to the current surface description - * - * Client: pwlcurve() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_pwlcurve( O_pwlcurve *o_pwlcurve ) -{ - if( ! inTrim ) { - do_nurbserror( 19 ); - if( o_pwlcurve->save == 0 ) - do_freepwlcurve(o_pwlcurve ); - return; - } - - if( ! inCurve ) { - bgncurve( 0 ); - inCurve = 2; - } - - if( o_pwlcurve->used ) { - do_nurbserror( 20 ); - isDataValid = 0; - return; - } else - o_pwlcurve->used = 1; - - if( currentCurve->curvetype == ct_none ) { - currentCurve->curvetype = ct_pwlcurve; - } else if( currentCurve->curvetype != ct_pwlcurve ) { - do_nurbserror( 21 ); - isDataValid = 0; - return; - } - - if( *nextPwlcurve != o_pwlcurve ) { - isCurveModified = 1; - *nextPwlcurve = o_pwlcurve; - } - nextPwlcurve = &(o_pwlcurve->next); - - if( o_pwlcurve->owner != currentCurve ) { - isCurveModified = 1; - o_pwlcurve->owner = currentCurve; - } - - if( inCurve == 2 ) - endcurve(); -} - - -/*----------------------------------------------------------------------------- - * do_freenurbscurve - - * - * Client: - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_freenurbscurve( O_nurbscurve *o_nurbscurve ) -{ - o_nurbscurve->bezier_curves->deleteMe( quiltPool ); - o_nurbscurve->deleteMe( o_nurbscurvePool ); -} - - -/*----------------------------------------------------------------------------- - * do_nurbscurve - - * - * Client: nurbscurve() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_nurbscurve( O_nurbscurve *o_nurbscurve ) -{ - if ( ! inCurve ) { - bgncurve( 0 ); - inCurve = 2; - } - - if( o_nurbscurve->used ) { - /* error - curve was already called in current surface */ - do_nurbserror( 23 ); - isDataValid = 0; - return; - } else - o_nurbscurve->used = 1; - - if( currentCurve->curvetype == ct_none ) { - currentCurve->curvetype = ct_nurbscurve; - } else if( currentCurve->curvetype != ct_nurbscurve ) { - do_nurbserror( 24 ); - isDataValid = 0; - return; - } - - if( *nextNurbscurve != o_nurbscurve ) { - isCurveModified = 1; - *nextNurbscurve = o_nurbscurve; - } - - nextNurbscurve = &(o_nurbscurve->next); - - if( o_nurbscurve->owner != currentCurve ) { - isCurveModified = 1; - o_nurbscurve->owner = currentCurve; - } - - if( o_nurbscurve->owner == 0 ) - isCurveModified = 1; - - if( inCurve == 2 ) - endcurve(); -} - - -/*----------------------------------------------------------------------------- - * do_freenurbssurface - - * - * Client: - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::do_freenurbssurface( O_nurbssurface *o_nurbssurface ) -{ - o_nurbssurface->bezier_patches->deleteMe( quiltPool ); - o_nurbssurface->deleteMe( o_nurbssurfacePool ); -} - -/*----------------------------------------------------------------------------- - * do_nurbssurface - - * - * Client: nurbssurface() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_nurbssurface( O_nurbssurface *o_nurbssurface ) -{ - if( ! inSurface ) { - bgnsurface( 0 ); - inSurface = 2; - } - - if( o_nurbssurface->used ) { - /* error - surface was already called in current block */ - do_nurbserror( 25 ); - isDataValid = 0; - return; - } else - o_nurbssurface->used = 1; - - if( *nextNurbssurface != o_nurbssurface ) { - isSurfaceModified = 1; - *nextNurbssurface = o_nurbssurface; - } - - if( o_nurbssurface->owner != currentSurface ) { - isSurfaceModified = 1; - o_nurbssurface->owner = currentSurface; - } - nextNurbssurface = &(o_nurbssurface->next); - - if( inSurface == 2 ) - endsurface(); -} - - -/*----------------------------------------------------------------------------- - * do_freenurbsproperty - * - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::do_freenurbsproperty( Property *prop ) -{ - prop->deleteMe( propertyPool ); -} - - -/*----------------------------------------------------------------------------- - * do_setnurbsproperty - - * - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::do_setnurbsproperty( Property *prop ) -{ - renderhints.setProperty( prop->tag, prop->value ); - if( prop->save == 0 ) - do_freenurbsproperty( prop ); -} - -void -NurbsTessellator::do_setnurbsproperty2( Property *prop ) -{ - Mapdesc *mapdesc = maplist.find( prop->type ); - - mapdesc->setProperty( prop->tag, prop->value ); - if( prop->save == 0 ) - do_freenurbsproperty( prop ); -} - -void -NurbsTessellator::errorHandler( int ) -{ -} - -void -NurbsTessellator::do_nurbserror( int msg ) -{ - errorHandler( msg ); -} - -int -NurbsTessellator::do_check_knots( Knotvector *knots, const char *msg ) -{ - int status = knots->validate(); - if( status ) { - do_nurbserror( status ); - if( renderhints.errorchecking != N_NOMSG ) knots->show( msg ); - } - return status; -} - - - - - diff --git a/src/glu/sgi/libnurbs/internals/nurbstess.h b/src/glu/sgi/libnurbs/internals/nurbstess.h deleted file mode 100644 index a6869002fb6..00000000000 --- a/src/glu/sgi/libnurbs/internals/nurbstess.h +++ /dev/null @@ -1,172 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * nurbstess.h - * - */ - -#ifndef __glunurbstess_h_ -#define __glunurbstess_h_ - -#include "mysetjmp.h" -#include "subdivider.h" -#include "renderhints.h" -#include "backend.h" -#include "maplist.h" -#include "reader.h" -#include "nurbsconsts.h" - -struct Knotvector; -class Quilt; -class DisplayList; -class BasicCurveEvaluator; -class BasicSurfaceEvaluator; - -class NurbsTessellator { -public: - NurbsTessellator( BasicCurveEvaluator &c, - BasicSurfaceEvaluator &e ); - virtual ~NurbsTessellator( void ); - - void getnurbsproperty( long, INREAL * ); - void getnurbsproperty( long, long, INREAL * ); - void setnurbsproperty( long, INREAL ); - void setnurbsproperty( long, long, INREAL ); - void setnurbsproperty( long, long, INREAL * ); - void setnurbsproperty( long, long, INREAL *, long, long ); - - // called before a tessellation begins/ends - virtual void bgnrender( void ); - virtual void endrender( void ); - - // called to make a display list of the output vertices - virtual void makeobj( int n ); - virtual void closeobj( void ); - - // called when a error occurs - virtual void errorHandler( int ); - - void bgnsurface( long ); - void endsurface( void ); - void bgntrim( void ); - void endtrim( void ); - void bgncurve( long ); - void endcurve( void ); - void pwlcurve( long, INREAL[], long, long ); - void nurbscurve( long, INREAL[], long, INREAL[], long, long ); - void nurbssurface( long, INREAL[], long, INREAL[], long, long, - INREAL[], long, long, long ); - - void defineMap( long, long, long ); - void redefineMaps( void ); - - // recording of input description - void discardRecording( void * ); - void * beginRecording( void ); - void endRecording( void ); - void playRecording( void * ); - - //for optimizing untrimmed nurbs in the case of domain distance sampling - void set_domain_distance_u_rate(REAL u_rate); - void set_domain_distance_v_rate(REAL v_rate); - void set_is_domain_distance_sampling(int flag); - - -protected: - Renderhints renderhints; - Maplist maplist; - Backend backend; - -private: - - void resetObjects( void ); - int do_check_knots( Knotvector *, const char * ); - void do_nurbserror( int ); - void do_bgncurve( O_curve * ); - void do_endcurve( void ); - void do_freeall( void ); - void do_freecurveall( O_curve * ); - void do_freebgntrim( O_trim * ); - void do_freebgncurve( O_curve * ); - void do_freepwlcurve( O_pwlcurve * ); - void do_freenurbscurve( O_nurbscurve * ); - void do_freenurbssurface( O_nurbssurface * ); - void do_freebgnsurface( O_surface * ); - void do_bgnsurface( O_surface * ); - void do_endsurface( void ); - void do_bgntrim( O_trim * ); - void do_endtrim( void ); - void do_pwlcurve( O_pwlcurve * ); - void do_nurbscurve( O_nurbscurve * ); - void do_nurbssurface( O_nurbssurface * ); - void do_freenurbsproperty( Property * ); - void do_setnurbsproperty( Property * ); - void do_setnurbsproperty2( Property * ); - - Subdivider subdivider; - JumpBuffer* jumpbuffer; - Pool o_pwlcurvePool; - Pool o_nurbscurvePool; - Pool o_curvePool; - Pool o_trimPool; - Pool o_surfacePool; - Pool o_nurbssurfacePool; - Pool propertyPool; -public: - Pool quiltPool; -private: - TrimVertexPool extTrimVertexPool; - - int inSurface; /* bgnsurface seen */ - int inCurve; /* bgncurve seen */ - int inTrim; /* bgntrim seen */ - int isCurveModified; /* curve changed */ - int isTrimModified; /* trim curves changed */ - int isSurfaceModified; /* surface changed */ - int isDataValid; /* all data is good */ - int numTrims; /* valid trim regions */ - int playBack; - - O_trim** nextTrim; /* place to link o_trim */ - O_curve** nextCurve; /* place to link o_curve */ - O_nurbscurve** nextNurbscurve; /* place to link o_nurbscurve */ - O_pwlcurve** nextPwlcurve; /* place to link o_pwlcurve */ - O_nurbssurface** nextNurbssurface; /* place to link o_nurbssurface */ - - O_surface* currentSurface; - O_trim* currentTrim; - O_curve* currentCurve; - - DisplayList *dl; - -}; - -#endif /* __glunurbstess_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/patch.cc b/src/glu/sgi/libnurbs/internals/patch.cc deleted file mode 100644 index 808baa69e44..00000000000 --- a/src/glu/sgi/libnurbs/internals/patch.cc +++ /dev/null @@ -1,504 +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. -*/ - -/* - * patch.c++ - * - */ - -#include <stdio.h> -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "mymath.h" -#include "mystring.h" -#include "patch.h" -#include "mapdesc.h" -#include "quilt.h" -#include "nurbsconsts.h" -#include "simplemath.h" //for glu_abs function in ::singleStep(); - - -/*-------------------------------------------------------------------------- - * Patch - copy patch from quilt and transform control points - *-------------------------------------------------------------------------- - */ - -Patch::Patch( Quilt_ptr geo, REAL *pta, REAL *ptb, Patch *n ) -{ -/* pspec[i].range is uninit here */ - mapdesc = geo->mapdesc; - cullval = mapdesc->isCulling() ? CULL_ACCEPT : CULL_TRIVIAL_ACCEPT; - notInBbox = mapdesc->isBboxSubdividing() ? 1 : 0; - needsSampling = mapdesc->isRangeSampling() ? 1 : 0; - pspec[0].order = geo->qspec[0].order; - pspec[1].order = geo->qspec[1].order; - pspec[0].stride = pspec[1].order * MAXCOORDS; - pspec[1].stride = MAXCOORDS; - - /* transform control points to sampling and culling spaces */ - REAL *ps = geo->cpts; - geo->select( pta, ptb ); - ps += geo->qspec[0].offset; - ps += geo->qspec[1].offset; - ps += geo->qspec[0].index * geo->qspec[0].order * geo->qspec[0].stride; - ps += geo->qspec[1].index * geo->qspec[1].order * geo->qspec[1].stride; - - if( needsSampling ) { - mapdesc->xformSampling( ps, geo->qspec[0].order, geo->qspec[0].stride, - geo->qspec[1].order, geo->qspec[1].stride, - spts, pspec[0].stride, pspec[1].stride ); - } - - if( cullval == CULL_ACCEPT ) { - mapdesc->xformCulling( ps, geo->qspec[0].order, geo->qspec[0].stride, - geo->qspec[1].order, geo->qspec[1].stride, - cpts, pspec[0].stride, pspec[1].stride ); - } - - if( notInBbox ) { - mapdesc->xformBounding( ps, geo->qspec[0].order, geo->qspec[0].stride, - geo->qspec[1].order, geo->qspec[1].stride, - bpts, pspec[0].stride, pspec[1].stride ); - } - - /* set scale range */ - pspec[0].range[0] = geo->qspec[0].breakpoints[geo->qspec[0].index]; - pspec[0].range[1] = geo->qspec[0].breakpoints[geo->qspec[0].index+1]; - pspec[0].range[2] = pspec[0].range[1] - pspec[0].range[0]; - - pspec[1].range[0] = geo->qspec[1].breakpoints[geo->qspec[1].index]; - pspec[1].range[1] = geo->qspec[1].breakpoints[geo->qspec[1].index+1]; - pspec[1].range[2] = pspec[1].range[1] - pspec[1].range[0]; - - // may need to subdivide to match range of sub-patch - if( pspec[0].range[0] != pta[0] ) { - assert( pspec[0].range[0] < pta[0] ); - Patch lower( *this, 0, pta[0], 0 ); - *this = lower; - } - - if( pspec[0].range[1] != ptb[0] ) { - assert( pspec[0].range[1] > ptb[0] ); - Patch upper( *this, 0, ptb[0], 0 ); - } - - if( pspec[1].range[0] != pta[1] ) { - assert( pspec[1].range[0] < pta[1] ); - Patch lower( *this, 1, pta[1], 0 ); - *this = lower; - } - - if( pspec[1].range[1] != ptb[1] ) { - assert( pspec[1].range[1] > ptb[1] ); - Patch upper( *this, 1, ptb[1], 0 ); - } - checkBboxConstraint(); - next = n; -} - -/*-------------------------------------------------------------------------- - * Patch - subdivide a patch along an isoparametric line - *-------------------------------------------------------------------------- - */ - -Patch::Patch( Patch& upper, int param, REAL value, Patch *n ) -{ - Patch& lower = *this; - - lower.cullval = upper.cullval; - lower.mapdesc = upper.mapdesc; - lower.notInBbox = upper.notInBbox; - lower.needsSampling = upper.needsSampling; - lower.pspec[0].order = upper.pspec[0].order; - lower.pspec[1].order = upper.pspec[1].order; - lower.pspec[0].stride = upper.pspec[0].stride; - lower.pspec[1].stride = upper.pspec[1].stride; - lower.next = n; - - /* reset scale range */ - switch( param ) { - case 0: { - REAL d = (value-upper.pspec[0].range[0]) / upper.pspec[0].range[2]; - if( needsSampling ) - mapdesc->subdivide( upper.spts, lower.spts, d, pspec[1].order, - pspec[1].stride, pspec[0].order, pspec[0].stride ); - - if( cullval == CULL_ACCEPT ) - mapdesc->subdivide( upper.cpts, lower.cpts, d, pspec[1].order, - pspec[1].stride, pspec[0].order, pspec[0].stride ); - - if( notInBbox ) - mapdesc->subdivide( upper.bpts, lower.bpts, d, pspec[1].order, - pspec[1].stride, pspec[0].order, pspec[0].stride ); - - lower.pspec[0].range[0] = upper.pspec[0].range[0]; - lower.pspec[0].range[1] = value; - lower.pspec[0].range[2] = value - upper.pspec[0].range[0]; - upper.pspec[0].range[0] = value; - upper.pspec[0].range[2] = upper.pspec[0].range[1] - value; - - lower.pspec[1].range[0] = upper.pspec[1].range[0]; - lower.pspec[1].range[1] = upper.pspec[1].range[1]; - lower.pspec[1].range[2] = upper.pspec[1].range[2]; - break; - } - case 1: { - REAL d = (value-upper.pspec[1].range[0]) / upper.pspec[1].range[2]; - if( needsSampling ) - mapdesc->subdivide( upper.spts, lower.spts, d, pspec[0].order, - pspec[0].stride, pspec[1].order, pspec[1].stride ); - if( cullval == CULL_ACCEPT ) - mapdesc->subdivide( upper.cpts, lower.cpts, d, pspec[0].order, - pspec[0].stride, pspec[1].order, pspec[1].stride ); - if( notInBbox ) - mapdesc->subdivide( upper.bpts, lower.bpts, d, pspec[0].order, - pspec[0].stride, pspec[1].order, pspec[1].stride ); - lower.pspec[0].range[0] = upper.pspec[0].range[0]; - lower.pspec[0].range[1] = upper.pspec[0].range[1]; - lower.pspec[0].range[2] = upper.pspec[0].range[2]; - - lower.pspec[1].range[0] = upper.pspec[1].range[0]; - lower.pspec[1].range[1] = value; - lower.pspec[1].range[2] = value - upper.pspec[1].range[0]; - upper.pspec[1].range[0] = value; - upper.pspec[1].range[2] = upper.pspec[1].range[1] - value; - break; - } - } - - // inherit bounding box - if( mapdesc->isBboxSubdividing() && ! notInBbox ) - memcpy( lower.bb, upper.bb, sizeof( bb ) ); - - lower.checkBboxConstraint(); - upper.checkBboxConstraint(); -} - -/*-------------------------------------------------------------------------- - * clamp - clamp the sampling rate to a given maximum - *-------------------------------------------------------------------------- - */ - -void -Patch::clamp( void ) -{ - if( mapdesc->clampfactor != N_NOCLAMPING ) { - pspec[0].clamp( mapdesc->clampfactor ); - pspec[1].clamp( mapdesc->clampfactor ); - } -} - -void -Patchspec::clamp( REAL clampfactor ) -{ - if( sidestep[0] < minstepsize ) - sidestep[0] = clampfactor * minstepsize; - if( sidestep[1] < minstepsize ) - sidestep[1] = clampfactor * minstepsize; - if( stepsize < minstepsize ) - stepsize = clampfactor * minstepsize; -} - -void -Patch::checkBboxConstraint( void ) -{ - if( notInBbox && - mapdesc->bboxTooBig( bpts, pspec[0].stride, pspec[1].stride, - pspec[0].order, pspec[1].order, bb ) != 1 ) { - notInBbox = 0; - } -} - -void -Patch::bbox( void ) -{ - if( mapdesc->isBboxSubdividing() ) - mapdesc->surfbbox( bb ); -} - -/*-------------------------------------------------------------------------- - * getstepsize - compute the sampling density across the patch - * and determine if patch needs to be subdivided - *-------------------------------------------------------------------------- - */ - -void -Patch::getstepsize( void ) -{ - pspec[0].minstepsize = pspec[1].minstepsize = 0; - pspec[0].needsSubdivision = pspec[1].needsSubdivision = 0; - - if( mapdesc->isConstantSampling() ) { - // fixed number of samples per patch in each direction - // maxsrate is number of s samples per patch - // maxtrate is number of t samples per patch - pspec[0].getstepsize( mapdesc->maxsrate ); - pspec[1].getstepsize( mapdesc->maxtrate ); - - } else if( mapdesc->isDomainSampling() ) { - // maxsrate is number of s samples per unit s length of domain - // maxtrate is number of t samples per unit t length of domain - pspec[0].getstepsize( mapdesc->maxsrate * pspec[0].range[2] ); - pspec[1].getstepsize( mapdesc->maxtrate * pspec[1].range[2] ); - - } else if( ! needsSampling ) { - pspec[0].singleStep(); - pspec[1].singleStep(); - } else { - // upper bound on path length between sample points - REAL tmp[MAXORDER][MAXORDER][MAXCOORDS]; - const int trstride = sizeof(tmp[0]) / sizeof(REAL); - const int tcstride = sizeof(tmp[0][0]) / sizeof(REAL); - - assert( pspec[0].order <= MAXORDER ); - - /* points have been transformed, therefore they are homogeneous */ - - int val = mapdesc->project( spts, pspec[0].stride, pspec[1].stride, - &tmp[0][0][0], trstride, tcstride, - pspec[0].order, pspec[1].order ); - if( val == 0 ) { - // control points cross infinity, therefore partials are undefined - pspec[0].getstepsize( mapdesc->maxsrate ); - pspec[1].getstepsize( mapdesc->maxtrate ); - } else { - REAL t1 = mapdesc->getProperty( N_PIXEL_TOLERANCE ); -// REAL t2 = mapdesc->getProperty( N_ERROR_TOLERANCE ); - pspec[0].minstepsize = ( mapdesc->maxsrate > 0.0 ) ? - (pspec[0].range[2] / mapdesc->maxsrate) : 0.0; - pspec[1].minstepsize = ( mapdesc->maxtrate > 0.0 ) ? - (pspec[1].range[2] / mapdesc->maxtrate) : 0.0; - if( mapdesc->isParametricDistanceSampling() || - mapdesc->isObjectSpaceParaSampling() ) { - - REAL t2; - t2 = mapdesc->getProperty( N_ERROR_TOLERANCE ); - - // t2 is upper bound on the distance between surface and tessellant - REAL ssv[2], ttv[2]; - REAL ss = mapdesc->calcPartialVelocity( ssv, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 2, 0, pspec[0].range[2], pspec[1].range[2], 0 ); - REAL st = mapdesc->calcPartialVelocity( 0, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 1, 1, pspec[0].range[2], pspec[1].range[2], -1 ); - REAL tt = mapdesc->calcPartialVelocity( ttv, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 0, 2, pspec[0].range[2], pspec[1].range[2], 1 ); - //make sure that ss st and tt are nonnegative: - if(ss <0) ss = -ss; - if(st <0) st = -st; - if(tt <0) tt = -tt; - - if( ss != 0.0 && tt != 0.0 ) { - /* printf( "ssv[0] %g ssv[1] %g ttv[0] %g ttv[1] %g\n", - ssv[0], ssv[1], ttv[0], ttv[1] ); */ - REAL ttq = sqrtf( (float) ss ); - REAL ssq = sqrtf( (float) tt ); - REAL ds = sqrtf( 4 * t2 * ttq / ( ss * ttq + st * ssq ) ); - REAL dt = sqrtf( 4 * t2 * ssq / ( tt * ssq + st * ttq ) ); - pspec[0].stepsize = ( ds < pspec[0].range[2] ) ? ds : pspec[0].range[2]; - REAL scutoff = 2.0 * t2 / ( pspec[0].range[2] * pspec[0].range[2]); - pspec[0].sidestep[0] = (ssv[0] > scutoff) ? sqrtf( 2.0 * t2 / ssv[0] ) : pspec[0].range[2]; - pspec[0].sidestep[1] = (ssv[1] > scutoff) ? sqrtf( 2.0 * t2 / ssv[1] ) : pspec[0].range[2]; - - pspec[1].stepsize = ( dt < pspec[1].range[2] ) ? dt : pspec[1].range[2]; - REAL tcutoff = 2.0 * t2 / ( pspec[1].range[2] * pspec[1].range[2]); - pspec[1].sidestep[0] = (ttv[0] > tcutoff) ? sqrtf( 2.0 * t2 / ttv[0] ) : pspec[1].range[2]; - pspec[1].sidestep[1] = (ttv[1] > tcutoff) ? sqrtf( 2.0 * t2 / ttv[1] ) : pspec[1].range[2]; - } else if( ss != 0.0 ) { - REAL x = pspec[1].range[2] * st; - REAL ds = ( sqrtf( x * x + 8.0 * t2 * ss ) - x ) / ss; - pspec[0].stepsize = ( ds < pspec[0].range[2] ) ? ds : pspec[0].range[2]; - REAL scutoff = 2.0 * t2 / ( pspec[0].range[2] * pspec[0].range[2]); - pspec[0].sidestep[0] = (ssv[0] > scutoff) ? sqrtf( 2.0 * t2 / ssv[0] ) : pspec[0].range[2]; - pspec[0].sidestep[1] = (ssv[1] > scutoff) ? sqrtf( 2.0 * t2 / ssv[1] ) : pspec[0].range[2]; - pspec[1].singleStep(); - } else if( tt != 0.0 ) { - REAL x = pspec[0].range[2] * st; - REAL dt = ( sqrtf( x * x + 8.0 * t2 * tt ) - x ) / tt; - pspec[0].singleStep(); - REAL tcutoff = 2.0 * t2 / ( pspec[1].range[2] * pspec[1].range[2]); - pspec[1].stepsize = ( dt < pspec[1].range[2] ) ? dt : pspec[1].range[2]; - pspec[1].sidestep[0] = (ttv[0] > tcutoff) ? sqrtf( 2.0 * t2 / ttv[0] ) : pspec[1].range[2]; - pspec[1].sidestep[1] = (ttv[1] > tcutoff) ? sqrtf( 2.0 * t2 / ttv[1] ) : pspec[1].range[2]; - } else { - if( 4.0 * t2 > st * pspec[0].range[2] * pspec[1].range[2] ) { - pspec[0].singleStep(); - pspec[1].singleStep(); - } else { - REAL area = 4.0 * t2 / st; - REAL ds = sqrtf( area * pspec[0].range[2] / pspec[1].range[2] ); - REAL dt = sqrtf( area * pspec[1].range[2] / pspec[0].range[2] ); - pspec[0].stepsize = ( ds < pspec[0].range[2] ) ? ds : pspec[0].range[2]; - pspec[0].sidestep[0] = pspec[0].range[2]; - pspec[0].sidestep[1] = pspec[0].range[2]; - - pspec[1].stepsize = ( dt < pspec[1].range[2] ) ? dt : pspec[1].range[2]; - pspec[1].sidestep[0] = pspec[1].range[2]; - pspec[1].sidestep[1] = pspec[1].range[2]; - } - } - } else if( mapdesc->isPathLengthSampling() || - mapdesc->isObjectSpacePathSampling()) { - // t1 is upper bound on path length - REAL msv[2], mtv[2]; - REAL ms = mapdesc->calcPartialVelocity( msv, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 1, 0, pspec[0].range[2], pspec[1].range[2], 0 ); - REAL mt = mapdesc->calcPartialVelocity( mtv, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 0, 1, pspec[0].range[2], pspec[1].range[2], 1 ); - REAL side_scale = 1.0; - - if( ms != 0.0 ) { - if( mt != 0.0 ) { -/* REAL d = t1 / ( ms * ms + mt * mt );*/ -/* REAL ds = mt * d;*/ - REAL ds = t1 / (2.0*ms); -/* REAL dt = ms * d;*/ - REAL dt = t1 / (2.0*mt); - pspec[0].stepsize = ( ds < pspec[0].range[2] ) ? ds : pspec[0].range[2]; - pspec[0].sidestep[0] = ( msv[0] * pspec[0].range[2] > t1 ) ? (side_scale* t1 / msv[0]) : pspec[0].range[2]; - pspec[0].sidestep[1] = ( msv[1] * pspec[0].range[2] > t1 ) ? (side_scale* t1 / msv[1]) : pspec[0].range[2]; - - pspec[1].stepsize = ( dt < pspec[1].range[2] ) ? dt : pspec[1].range[2]; - pspec[1].sidestep[0] = ( mtv[0] * pspec[1].range[2] > t1 ) ? (side_scale*t1 / mtv[0]) : pspec[1].range[2]; - pspec[1].sidestep[1] = ( mtv[1] * pspec[1].range[2] > t1 ) ? (side_scale*t1 / mtv[1]) : pspec[1].range[2]; - } else { - pspec[0].stepsize = ( t1 < ms * pspec[0].range[2] ) ? (t1 / ms) : pspec[0].range[2]; - pspec[0].sidestep[0] = ( msv[0] * pspec[0].range[2] > t1 ) ? (t1 / msv[0]) : pspec[0].range[2]; - pspec[0].sidestep[1] = ( msv[1] * pspec[0].range[2] > t1 ) ? (t1 / msv[1]) : pspec[0].range[2]; - - pspec[1].singleStep(); - } - } else { - if( mt != 0.0 ) { - pspec[0].singleStep(); - - pspec[1].stepsize = ( t1 < mt * pspec[1].range[2] ) ? (t1 / mt) : pspec[1].range[2]; - pspec[1].sidestep[0] = ( mtv[0] * pspec[1].range[2] > t1 ) ? (t1 / mtv[0]) : pspec[1].range[2]; - pspec[1].sidestep[1] = ( mtv[1] * pspec[1].range[2] > t1 ) ? (t1 / mtv[1]) : pspec[1].range[2]; - } else { - pspec[0].singleStep(); - pspec[1].singleStep(); - } - } - } else if( mapdesc->isSurfaceAreaSampling() ) { - // t is the square root of area -/* - REAL msv[2], mtv[2]; - REAL ms = mapdesc->calcPartialVelocity( msv, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 1, 0, pspec[0].range[2], pspec[1].range[2], 0 ); - REAL mt = mapdesc->calcPartialVelocity( mtv, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 0, 1, pspec[0].range[2], pspec[1].range[2], 1 ); - if( ms != 0.0 && mt != 0.0 ) { - REAL d = 1.0 / (ms * mt); - t *= M_SQRT2; - REAL ds = t * sqrtf( d * pspec[0].range[2] / pspec[1].range[2] ); - REAL dt = t * sqrtf( d * pspec[1].range[2] / pspec[0].range[2] ); - pspec[0].stepsize = ( ds < pspec[0].range[2] ) ? ds : pspec[0].range[2]; - pspec[0].sidestep[0] = ( msv[0] * pspec[0].range[2] > t ) ? (t / msv[0]) : pspec[0].range[2]; - pspec[0].sidestep[1] = ( msv[1] * pspec[0].range[2] > t ) ? (t / msv[1]) : pspec[0].range[2]; - - pspec[1].stepsize = ( dt < pspec[1].range[2] ) ? dt : pspec[1].range[2]; - pspec[1].sidestep[0] = ( mtv[0] * pspec[1].range[2] > t ) ? (t / mtv[0]) : pspec[1].range[2]; - pspec[1].sidestep[1] = ( mtv[1] * pspec[1].range[2] > t ) ? (t / mtv[1]) : pspec[1].range[2]; - } else { - pspec[0].singleStep(); - pspec[1].singleStep(); - } -*/ - } else { - pspec[0].singleStep(); - pspec[1].singleStep(); - } - } - } - -#ifdef DEBUG - _glu_dprintf( "sidesteps %g %g %g %g, stepsize %g %g\n", - pspec[0].sidestep[0], pspec[0].sidestep[1], - pspec[1].sidestep[0], pspec[1].sidestep[1], - pspec[0].stepsize, pspec[1].stepsize ); -#endif - - if( mapdesc->minsavings != N_NOSAVINGSSUBDIVISION ) { - REAL savings = 1./(pspec[0].stepsize * pspec[1].stepsize) ; - savings-= (2./( pspec[0].sidestep[0] + pspec[0].sidestep[1] )) * - (2./( pspec[1].sidestep[0] + pspec[1].sidestep[1] )); - - savings *= pspec[0].range[2] * pspec[1].range[2]; - if( savings > mapdesc->minsavings ) { - pspec[0].needsSubdivision = pspec[1].needsSubdivision = 1; - } - } - - if( pspec[0].stepsize < pspec[0].minstepsize ) pspec[0].needsSubdivision = 1; - if( pspec[1].stepsize < pspec[1].minstepsize ) pspec[1].needsSubdivision = 1; - needsSampling = (needsSampling ? needsSamplingSubdivision() : 0); -} - -void -Patchspec::singleStep() -{ - stepsize = sidestep[0] = sidestep[1] = glu_abs(range[2]); -} - -void -Patchspec::getstepsize( REAL max ) // max is number of samples for entire patch -{ - stepsize = ( max >= 1.0 ) ? range[2] / max : range[2]; - if (stepsize < 0.0) { - stepsize = -stepsize; - } - sidestep[0] = sidestep[1] = minstepsize = stepsize; -} - -int -Patch::needsSamplingSubdivision( void ) -{ - return (pspec[0].needsSubdivision || pspec[1].needsSubdivision) ? 1 : 0; -} - -int -Patch::needsNonSamplingSubdivision( void ) -{ - return notInBbox; -} - -int -Patch::needsSubdivision( int param ) -{ - return pspec[param].needsSubdivision; -} - -int -Patch::cullCheck( void ) -{ - if( cullval == CULL_ACCEPT ) - cullval = mapdesc->cullCheck( cpts, pspec[0].order, pspec[0].stride, - pspec[1].order, pspec[1].stride ); - return cullval; -} - diff --git a/src/glu/sgi/libnurbs/internals/patch.h b/src/glu/sgi/libnurbs/internals/patch.h deleted file mode 100644 index 324a25938b4..00000000000 --- a/src/glu/sgi/libnurbs/internals/patch.h +++ /dev/null @@ -1,94 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * patch.h - * - */ - -#ifndef __glupatch_h_ -#define __glupatch_h_ - -#include "types.h" -#include "defines.h" - -class Quilt; -class Mapdesc; - - -struct Pspec { - REAL range[3]; - REAL sidestep[2]; - REAL stepsize; - REAL minstepsize; - int needsSubdivision; -}; - -struct Patchspec : public Pspec { - int order; - int stride; - void clamp( REAL ); - void getstepsize( REAL ); - void singleStep( void ); -}; - -class Patch { -public: -friend class Subdivider; -friend class Quilt; -friend class Patchlist; - Patch( Quilt *, REAL*, REAL *, Patch * ); - Patch( Patch &, int, REAL, Patch * ); - void bbox( void ); - void clamp( void ); - void getstepsize( void ); - int cullCheck( void ); - int needsSubdivision( int ); - int needsSamplingSubdivision( void ); - int needsNonSamplingSubdivision( void ); - - int get_uorder() {return pspec[0].order;} - int get_vorder() {return pspec[1].order;} - -private: - - Mapdesc* mapdesc; - Patch* next; - int cullval; - int notInBbox; - int needsSampling; - REAL cpts[MAXORDER*MAXORDER*MAXCOORDS]; //culling pts - REAL spts[MAXORDER*MAXORDER*MAXCOORDS]; //sampling pts - REAL bpts[MAXORDER*MAXORDER*MAXCOORDS]; //bbox pts - Patchspec pspec[2]; - void checkBboxConstraint( void ); - REAL bb[2][MAXCOORDS]; -}; -#endif /* __glupatch_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/patchlist.cc b/src/glu/sgi/libnurbs/internals/patchlist.cc deleted file mode 100644 index 6a400ab6f72..00000000000 --- a/src/glu/sgi/libnurbs/internals/patchlist.cc +++ /dev/null @@ -1,169 +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. -*/ - -/* - * patchlist.c++ - * - */ - -#include <stdio.h> -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "quilt.h" -#include "patchlist.h" -#include "patch.h" - -Patchlist::Patchlist( Quilt *quilts, REAL *pta, REAL *ptb ) -{ - patch = 0; - for( Quilt *q = quilts; q; q = q->next ) - patch = new Patch( q, pta, ptb, patch ); - pspec[0].range[0] = pta[0]; - pspec[0].range[1] = ptb[0]; - pspec[0].range[2] = ptb[0] - pta[0]; - - pspec[1].range[0] = pta[1]; - pspec[1].range[1] = ptb[1]; - pspec[1].range[2] = ptb[1] - pta[1]; -} - -Patchlist::Patchlist( Patchlist &upper, int param, REAL value) -{ - Patchlist &lower = *this; - patch = 0; - for( Patch *p = upper.patch; p; p = p->next ) - patch = new Patch( *p, param, value, patch ); - - if( param == 0 ) { - lower.pspec[0].range[0] = upper.pspec[0].range[0]; - lower.pspec[0].range[1] = value; - lower.pspec[0].range[2] = value - upper.pspec[0].range[0]; - upper.pspec[0].range[0] = value; - upper.pspec[0].range[2] = upper.pspec[0].range[1] - value; - lower.pspec[1] = upper.pspec[1]; - } else { - lower.pspec[0] = upper.pspec[0]; - lower.pspec[1].range[0] = upper.pspec[1].range[0]; - lower.pspec[1].range[1] = value; - lower.pspec[1].range[2] = value - upper.pspec[1].range[0]; - upper.pspec[1].range[0] = value; - upper.pspec[1].range[2] = upper.pspec[1].range[1] - value; - } -} - -Patchlist::~Patchlist() -{ - while( patch ) { - Patch *p = patch; - patch = patch->next; - delete p; - } -} - -int -Patchlist::cullCheck( void ) -{ - for( Patch *p = patch; p; p = p->next ) - if( p->cullCheck() == CULL_TRIVIAL_REJECT ) - return CULL_TRIVIAL_REJECT; - return CULL_ACCEPT; -} - -void -Patchlist::getRanges(REAL ranges[4]) -{ - ranges[0] = pspec[0].range[0]; - ranges[1] = pspec[0].range[1]; - ranges[2] = pspec[1].range[0]; - ranges[3] = pspec[1].range[1]; -} - -void -Patchlist::getstepsize( void ) -{ - pspec[0].stepsize = pspec[0].range[2]; - pspec[0].sidestep[0] = pspec[0].range[2]; - pspec[0].sidestep[1] = pspec[0].range[2]; - - pspec[1].stepsize = pspec[1].range[2]; - pspec[1].sidestep[0] = pspec[1].range[2]; - pspec[1].sidestep[1] = pspec[1].range[2]; - - for( Patch *p = patch; p; p = p->next ) { - p->getstepsize(); - p->clamp(); - pspec[0].stepsize = ((p->pspec[0].stepsize < pspec[0].stepsize) ? p->pspec[0].stepsize : pspec[0].stepsize); - pspec[0].sidestep[0] = ((p->pspec[0].sidestep[0] < pspec[0].sidestep[0]) ? p->pspec[0].sidestep[0] : pspec[0].sidestep[0]); - pspec[0].sidestep[1] = ((p->pspec[0].sidestep[1] < pspec[0].sidestep[1]) ? p->pspec[0].sidestep[1] : pspec[0].sidestep[1]); - pspec[1].stepsize = ((p->pspec[1].stepsize < pspec[1].stepsize) ? p->pspec[1].stepsize : pspec[1].stepsize); - pspec[1].sidestep[0] = ((p->pspec[1].sidestep[0] < pspec[1].sidestep[0]) ? p->pspec[1].sidestep[0] : pspec[1].sidestep[0]); - pspec[1].sidestep[1] = ((p->pspec[1].sidestep[1] < pspec[1].sidestep[1]) ? p->pspec[1].sidestep[1] : pspec[1].sidestep[1]); - } -} - -void -Patchlist::bbox( void ) -{ - for( Patch *p = patch; p; p = p->next ) - p->bbox(); -} - -int -Patchlist::needsNonSamplingSubdivision( void ) -{ - notInBbox = 0; - for( Patch *p = patch; p; p = p->next ) - notInBbox |= p->needsNonSamplingSubdivision(); - return notInBbox; -} - -int -Patchlist::needsSamplingSubdivision( void ) -{ - pspec[0].needsSubdivision = 0; - pspec[1].needsSubdivision = 0; - - for( Patch *p = patch; p; p = p->next ) { - pspec[0].needsSubdivision |= p->pspec[0].needsSubdivision; - pspec[1].needsSubdivision |= p->pspec[0].needsSubdivision; - } - return (pspec[0].needsSubdivision || pspec[1].needsSubdivision) ? 1 : 0; -} - -int -Patchlist::needsSubdivision( int param ) -{ - return pspec[param].needsSubdivision; -} diff --git a/src/glu/sgi/libnurbs/internals/patchlist.h b/src/glu/sgi/libnurbs/internals/patchlist.h deleted file mode 100644 index 9bfc5b47a24..00000000000 --- a/src/glu/sgi/libnurbs/internals/patchlist.h +++ /dev/null @@ -1,92 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * patchlist.h - * - */ - -#ifndef __glupatchlist_h_ -#define __glupatchlist_h_ - -#include "types.h" -#include "defines.h" -#include "patch.h" - -class Quilt; - -class Patchlist { -friend class Subdivider; -public: - Patchlist( Quilt *, REAL *, REAL * ); - Patchlist( Patchlist &, int , REAL ); - ~Patchlist(); - void bbox(); - int cullCheck( void ); - void getstepsize( void ); - int needsNonSamplingSubdivision( void ); - int needsSamplingSubdivision( void ); - int needsSubdivision( int ); - REAL getStepsize( int ); - void getRanges(REAL ranges[4]); - - int get_uorder(); - int get_vorder(); -private: - Patch *patch; - int notInBbox; - int needsSampling; - Pspec pspec[2]; -}; - -inline REAL -Patchlist::getStepsize( int param ) -{ - return pspec[param].stepsize; -} - -inline int -Patchlist::get_uorder() -{ - return patch->get_uorder(); - -} - -inline int - Patchlist::get_vorder() -{ - return patch->get_vorder(); -} - - - - - -#endif /* __glupatchlist_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/pwlarc.h b/src/glu/sgi/libnurbs/internals/pwlarc.h deleted file mode 100644 index 2e5175a6f33..00000000000 --- a/src/glu/sgi/libnurbs/internals/pwlarc.h +++ /dev/null @@ -1,78 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * pwlarc.h - * - */ - -#ifndef __glupwlarc_h_ -#define __glupwlarc_h_ - -#include "myassert.h" -#include "nurbsconsts.h" - -class TrimVertex; - -class PwlArc : public PooledObj { /* a piecewise-linear arc */ -public: - TrimVertex * pts; /* sample points */ - int npts; /* number of sample points */ - long type; /* curve type */ - inline PwlArc( void ); - inline PwlArc( int, TrimVertex * ); - inline PwlArc( int, TrimVertex *, long ); -}; - -inline -PwlArc::PwlArc( void ) -{ - type = N_P2D; - pts = 0; - npts = -1; -} - -inline -PwlArc::PwlArc( int _npts, TrimVertex *_pts ) -{ - pts = _pts; - npts = _npts; - type = N_P2D; -} - -inline -PwlArc::PwlArc( int _npts, TrimVertex *_pts, long _type ) -{ - pts = _pts; - npts = _npts; - type = _type; -} - -#endif /* __glupwlarc_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/quilt.cc b/src/glu/sgi/libnurbs/internals/quilt.cc deleted file mode 100644 index d16f4bfec02..00000000000 --- a/src/glu/sgi/libnurbs/internals/quilt.cc +++ /dev/null @@ -1,274 +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. -*/ - -/* - * quilt.c++ - * - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "quilt.h" -#include "backend.h" -#include "mapdesc.h" -#include "flist.h" -#include "patchlist.h" -#include "simplemath.h" //min() - -/* local preprocessor definitions */ -#define DEF_PATCH_STEPSIZE .4 -#define fsizeof(x) (sizeof(x)/sizeof(REAL)) - - -Quilt::Quilt( Mapdesc *_mapdesc ) -{ - mapdesc = _mapdesc; -} - -void -Quilt::deleteMe( Pool& p ) -{ - for( Quiltspec *q=qspec; q != eqspec; q++ ) { -#if 1 - if( q->breakpoints) delete[] q->breakpoints; q->breakpoints = 0; -#else - if( q->breakpoints) { - delete[] q->breakpoints; - q->breakpoints = 0; -printf("in here\n"); - } -#endif - } - if( cpts ) delete[] cpts; - cpts = 0; - PooledObj::deleteMe( p ); -} - -void -Quilt::show( void ) -{ -#ifndef NDEBUG - int nc = mapdesc->getNcoords(); - REAL *ps = cpts; - ps += qspec[0].offset; - ps += qspec[1].offset; - for( int i=0; i!= qspec[0].order * qspec[0].width; i++ ) { - for( int j = 0; j!= qspec[1].order * qspec[1].width; j++ ) { - for( int k=0; k < nc; k++ ) - _glu_dprintf( "%g ", ps[i*qspec[0].stride + j*qspec[1].stride + k] ); - _glu_dprintf( "\n" ); - } - _glu_dprintf( "\n" ); - } - _glu_dprintf( "\n" ); -#endif -} - -/*-------------------------------------------------------------------------- - * Quilt::select - find which map in each quilt contains the points - * pta and ptb with pta[i] < ptb[i] - *-------------------------------------------------------------------------- - */ - -void -Quilt::select( REAL *pta, REAL *ptb ) -{ - int dim = eqspec - qspec; - int i, j; - for( i=0; i<dim; i++) { - for( j=qspec[i].width-1; j>=0; j-- ) - if( (qspec[i].breakpoints[j] <= pta[i] ) && - (ptb[i] <= qspec[i].breakpoints[j+1] ) ) - break; - assert( j != -1 ); - qspec[i].index = j; - } -} - -void -Quilt::download( Backend &backend ) -{ - if( getDimension() == 2 ) { - REAL *ps = cpts; - ps += qspec[0].offset; - ps += qspec[1].offset; - ps += qspec[0].index * qspec[0].order * qspec[0].stride; - ps += qspec[1].index * qspec[1].order * qspec[1].stride; - backend.surfpts( mapdesc->getType(), ps, - qspec[0].stride, - qspec[1].stride, - qspec[0].order, - qspec[1].order, - qspec[0].breakpoints[qspec[0].index], - qspec[0].breakpoints[qspec[0].index+1], - qspec[1].breakpoints[qspec[1].index], - qspec[1].breakpoints[qspec[1].index+1] ); - } else { - REAL *ps = cpts; - ps += qspec[0].offset; - ps += qspec[0].index * qspec[0].order * qspec[0].stride; - backend.curvpts( mapdesc->getType(), ps, - qspec[0].stride, - qspec[0].order, - qspec[0].breakpoints[qspec[0].index], - qspec[0].breakpoints[qspec[0].index+1] ); - } -} - -/*-------------------------------------------------------------------------- - * Quilt::downloadAll - download each map that contains the current patch - *-------------------------------------------------------------------------- - */ - -void -Quilt::downloadAll( REAL *pta, REAL *ptb, Backend &backend ) -{ - for( Quilt *m = this; m; m=m->next ) { - m->select( pta, ptb ); - m->download( backend ); - } -} - -/*-------------------------------------------------------------------------- - * Quilt::isCulled - determine if an entire quilt is trivially rejected. - *-------------------------------------------------------------------------- - */ - -int -Quilt::isCulled( void ) -{ - if( mapdesc->isCulling() ) - return mapdesc->xformAndCullCheck( cpts + qspec[0].offset + qspec[1].offset, - qspec[0].order * qspec[0].width, qspec[0].stride, - qspec[1].order * qspec[1].width, qspec[1].stride ); - else - return CULL_ACCEPT; -} - -/*--------------------------------------------------------------------------- - * Quilt::getRange - retrieve the valid paramater range of a set of quilts - *--------------------------------------------------------------------------- - */ -void -Quilt::getRange( REAL *from, REAL *to, Flist& slist, Flist &tlist ) -{ - getRange( from, to, 0, slist ); - getRange( from, to, 1, tlist ); -} - -/*--------------------------------------------------------------------------- - * Quilt::getRange - retrieve the valid paramater range of a set of quilts - *--------------------------------------------------------------------------- - */ -void -Quilt::getRange( REAL *from, REAL *to, int i, Flist &list ) -{ - Quilt *maps = this; - from[i] = maps->qspec[i].breakpoints[0]; - to[i] = maps->qspec[i].breakpoints[maps->qspec[i].width]; - int maxpts = 0; - Quilt_ptr m; - for( m=maps; m; m=m->next ) { - if( m->qspec[i].breakpoints[0] > from[i] ) - from[i] = m->qspec[i].breakpoints[0]; - if( m->qspec[i].breakpoints[m->qspec[i].width] < to[i] ) - to[i] = m->qspec[i].breakpoints[m->qspec[i].width]; - maxpts += m->qspec[i].width + 1; - } - - list.grow( maxpts ); - - for( m=maps; m; m=m->next ) - for( int j=0; j<=m->qspec[i].width; j++ ) { - list.add( m->qspec[i].breakpoints[j] ); - } - - list.filter( ); - list.taper( from[i], to[i] ); -} - -void -Quilt::getRange( REAL *from, REAL *to, Flist& slist ) -{ - getRange( from, to, 0, slist ); -} - -void -Quilt::findRates( Flist& slist, Flist& tlist, REAL rate[2] ) -{ - findSampleRates( slist, tlist ); - rate[0] = qspec[0].step_size; - rate[1] = qspec[1].step_size; - - for( Quilt *q = next; q; q = q->next ) { - q->findSampleRates( slist, tlist ); - if( q->qspec[0].step_size < rate[0] ) - rate[0] = q->qspec[0].step_size; - if( q->qspec[1].step_size < rate[1] ) - rate[1] = q->qspec[1].step_size; - } -} - -void -Quilt::findSampleRates( Flist& slist, Flist& tlist ) -{ - qspec[0].step_size = DEF_PATCH_STEPSIZE * - (qspec[0].breakpoints[qspec[0].width] - qspec[0].breakpoints[0]); - qspec[1].step_size = DEF_PATCH_STEPSIZE * - (qspec[1].breakpoints[qspec[1].width] - qspec[1].breakpoints[0]); - - for( int i = slist.start; i < slist.end-1; i++ ) { - for( int j = tlist.start; j < tlist.end-1; j++ ) { - - REAL pta[2], ptb[2]; - pta[0] = slist.pts[i]; - ptb[0] = slist.pts[i+1]; - pta[1] = tlist.pts[j]; - ptb[1] = tlist.pts[j+1]; - Patchlist patchlist( this, pta, ptb ); - patchlist.getstepsize(); - - { - float edge_len_s = min(glu_abs(ptb[0]-pta[0]),1.0); - float edge_len_t = min(glu_abs(ptb[1]-pta[1]),1.0); - - if( patchlist.getStepsize(0)/edge_len_s < qspec[0].step_size ) - qspec[0].step_size = patchlist.getStepsize(0)/edge_len_s; - if( patchlist.getStepsize(1)/edge_len_t < qspec[1].step_size ) - qspec[1].step_size = patchlist.getStepsize(1)/edge_len_t; - } - } - } -} diff --git a/src/glu/sgi/libnurbs/internals/quilt.h b/src/glu/sgi/libnurbs/internals/quilt.h deleted file mode 100644 index fe1e3309ead..00000000000 --- a/src/glu/sgi/libnurbs/internals/quilt.h +++ /dev/null @@ -1,92 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * quilt.h - * - */ - -#ifndef __gluquilt_h_ -#define __gluquilt_h_ - -#include "defines.h" -#include "bufpool.h" -#include "types.h" - -class Backend; -class Mapdesc; -class Flist; -struct Knotvector; - -/* constants for memory allocation of NURBS to Bezier conversion */ -#define MAXDIM 2 - -struct Quiltspec { /* a specification for a dimension of a quilt */ - int stride; /* words between points */ - int width; /* number of segments */ - int offset; /* words to first point */ - int order; /* order */ - int index; /* current segment number */ - int bdry[2]; /* boundary edge flag */ - REAL step_size; - Knot * breakpoints; -}; - -typedef Quiltspec *Quiltspec_ptr; - -class Quilt : public PooledObj { /* an array of bezier patches */ -public: - Quilt( Mapdesc * ); - Mapdesc * mapdesc; /* map descriptor */ - REAL * cpts; /* control points */ - Quiltspec qspec[MAXDIM]; /* the dimensional data */ - Quiltspec_ptr eqspec; /* qspec trailer */ - Quilt *next; /* next quilt in linked list */ - -public: - void deleteMe( Pool& ); - void toBezier( Knotvector &, INREAL *, long ); - void toBezier( Knotvector &, Knotvector &, INREAL *, long ); - void select( REAL *, REAL * ); - int getDimension( void ) { return eqspec - qspec; } - void download( Backend & ); - void downloadAll( REAL *, REAL *, Backend & ); - int isCulled( void ); - void getRange( REAL *, REAL *, Flist&, Flist & ); - void getRange( REAL *, REAL *, int, Flist & ); - void getRange( REAL *, REAL *, Flist& ); - void findRates( Flist& slist, Flist& tlist, REAL[2] ); - void findSampleRates( Flist& slist, Flist& tlist ); - void show(); -}; - -typedef class Quilt *Quilt_ptr; - -#endif /* __gluquilt_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/reader.cc b/src/glu/sgi/libnurbs/internals/reader.cc deleted file mode 100644 index c59240d26ab..00000000000 --- a/src/glu/sgi/libnurbs/internals/reader.cc +++ /dev/null @@ -1,148 +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. -*/ - -/* - * reader.c++ - * - */ - -#include <stdio.h> -#include "glimports.h" -#include "nurbsconsts.h" -#include "reader.h" -#include "trimvertex.h" -#include "simplemath.h" - -//when read a pwlCurve, if two consecutive points are the same, then -//eliminate one of them. This makes the tessellator more robust. The spec -//assumes the application makes sure there are no redundant points. -//but in Inspector, the trim curves seem to have redundant points a lot. -//I guess other similar users may have the same problem. - -#define ELIMINATE_REDUNDANT_POINTS - -#ifdef ELIMINATE_REDUNDANT_POINTS -#define equal(x,y) ( glu_abs(x-y) <= 0.00001) -#endif - -#ifdef ELIMINATE_REDUNDANT_POINTS -O_pwlcurve::O_pwlcurve( long _type, long count, INREAL *array, long byte_stride, TrimVertex *trimpts ) -{ - next = 0; - used = 0; - owner = 0; - pts = trimpts; - npts = (int) count; - save = 0; - int i; - - /* copy user data into internal trimming data structures */ - switch( _type ) { - case N_P2D: { - TrimVertex *v = pts; - TrimVertex *prev = NULL; - int num = 0; - int doit; - for(i=0; i<count; i++) { - doit = 1; - if(prev != NULL) - { - if(equal(prev->param[0], array[0]) && equal(prev->param[1], array[1])) - { - doit = 0; - } - } - - if(doit) - { - v->param[0] = (REAL) array[0]; - v->param[1] = (REAL) array[1]; - prev = v; - v++; - num++; - } - array = (INREAL *) (((char *) array) + byte_stride); - } - npts = num; - break; - } - case N_P2DR: { - TrimVertex *v = pts; - for( TrimVertex *lastv = v + count; v != lastv; v++ ) { - v->param[0] = (REAL) array[0] / (REAL) array[2]; - v->param[1] = (REAL) array[1] / (REAL) array[2]; - array = (INREAL *) (((char *) array) + byte_stride); - } - break; - } - } -} -#else -O_pwlcurve::O_pwlcurve( long _type, long count, INREAL *array, long byte_stride, TrimVertex *trimpts ) -{ - next = 0; - used = 0; - owner = 0; - pts = trimpts; - npts = (int) count; - save = 0; - - /* copy user data into internal trimming data structures */ - switch( _type ) { - case N_P2D: { - TrimVertex *v = pts; - for( TrimVertex *lastv = v + count; v != lastv; v++ ) { - v->param[0] = (REAL) array[0]; - v->param[1] = (REAL) array[1]; - array = (INREAL *) (((char *) array) + byte_stride); - } - break; - } - case N_P2DR: { - TrimVertex *v = pts; - for( TrimVertex *lastv = v + count; v != lastv; v++ ) { - v->param[0] = (REAL) array[0] / (REAL) array[2]; - v->param[1] = (REAL) array[1] / (REAL) array[2]; - array = (INREAL *) (((char *) array) + byte_stride); - } - break; - } - } -} -#endif - - - - - diff --git a/src/glu/sgi/libnurbs/internals/reader.h b/src/glu/sgi/libnurbs/internals/reader.h deleted file mode 100644 index cae6cada468..00000000000 --- a/src/glu/sgi/libnurbs/internals/reader.h +++ /dev/null @@ -1,132 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * reader.h - * - */ - -#ifndef __glureader_h_ -#define __glureader_h_ - -#include "bufpool.h" -#include "types.h" - -enum Curvetype { ct_nurbscurve, ct_pwlcurve, ct_none }; - -struct Property; -struct O_surface; -struct O_nurbssurface; -struct O_trim; -class O_pwlcurve; -struct O_nurbscurve; -struct O_curve; -class Quilt; -class TrimVertex; - - -struct O_curve : public PooledObj { - union { - O_nurbscurve *o_nurbscurve; - O_pwlcurve *o_pwlcurve; - } curve; - Curvetype curvetype; /* arc type: pwl or nurbs */ - O_curve * next; /* next arc in loop */ - O_surface * owner; /* owning surface */ - int used; /* curve called in cur surf */ - int save; /* 1 if in display list */ - long nuid; - O_curve() { next = 0; used = 0; owner = 0; - curve.o_pwlcurve = 0; curvetype = ct_none; save = 0; nuid = 0; } - }; - -struct O_nurbscurve : public PooledObj { - Quilt *bezier_curves; /* array of bezier curves */ - long type; /* range descriptor */ - REAL tesselation; /* tesselation tolerance */ - int method; /* tesselation method */ - O_nurbscurve * next; /* next curve in list */ - int used; /* curve called in cur surf */ - int save; /* 1 if in display list */ - O_curve * owner; /* owning curve */ - O_nurbscurve( long _type ) - { bezier_curves = 0; type = _type; tesselation = 0; method = 0; next = 0; used = 0; save = 0; owner = 0; } - }; - -class O_pwlcurve : public PooledObj { -public: - TrimVertex *pts; /* array of trim vertices */ - int npts; /* number of trim vertices */ - O_pwlcurve * next; /* next curve in list */ - int used; /* curve called in cur surf */ - int save; /* 1 if in display list */ - O_curve * owner; /* owning curve */ - O_pwlcurve( long, long, INREAL *, long, TrimVertex * ); - }; - -struct O_trim : public PooledObj { - O_curve *o_curve; /* closed trim loop */ - O_trim * next; /* next loop along trim */ - int save; /* 1 if in display list */ - O_trim() { next = 0; o_curve = 0; save = 0; } - }; - -struct O_nurbssurface : public PooledObj { - Quilt * bezier_patches;/* array of bezier patches */ - long type; /* range descriptor */ - O_surface * owner; /* owning surface */ - O_nurbssurface * next; /* next surface in chain */ - int save; /* 1 if in display list */ - int used; /* 1 if prev called in block */ - O_nurbssurface( long _type ) - { bezier_patches = 0; type = _type; owner = 0; next = 0; save = 0; used = 0; } - }; - -struct O_surface : public PooledObj { - O_nurbssurface * o_nurbssurface; /* linked list of surfaces */ - O_trim * o_trim; /* list of trim loops */ - int save; /* 1 if in display list */ - long nuid; - O_surface() { o_trim = 0; o_nurbssurface = 0; save = 0; nuid = 0; } - }; - -struct Property : public PooledObj { - long type; - long tag; - REAL value; - int save; /* 1 if in display list */ - Property( long _type, long _tag, INREAL _value ) - { type = _type; tag = _tag; value = (REAL) _value; save = 0; } - Property( long _tag, INREAL _value ) - { type = 0; tag = _tag; value = (REAL) _value; save = 0; } - }; - -class NurbsTessellator; -#endif /* __glureader_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/renderhints.cc b/src/glu/sgi/libnurbs/internals/renderhints.cc deleted file mode 100644 index 4b347ebc7f5..00000000000 --- a/src/glu/sgi/libnurbs/internals/renderhints.cc +++ /dev/null @@ -1,136 +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. -*/ - -/* - * renderhints.c++ - * - */ - -#include "glimports.h" -#include "mystdio.h" -#include "renderhints.h" -#include "nurbsconsts.h" - - -/*-------------------------------------------------------------------------- - * Renderhints::Renderhints - set all window specific options - *-------------------------------------------------------------------------- - */ -Renderhints::Renderhints() -{ - display_method = N_FILL; - errorchecking = N_MSG; - subdivisions = 6.0; - tmp1 = 0.0; - displaydomain = 0; - maxsubdivisions = (int) subdivisions; - wiretris = 0; - wirequads = 0; -} - -void -Renderhints::init( void ) -{ - maxsubdivisions = (int) subdivisions; - if( maxsubdivisions < 0 ) maxsubdivisions = 0; - - - if( display_method == N_FILL ) { - wiretris = 0; - wirequads = 0; - } else if( display_method == N_OUTLINE_TRI ) { - wiretris = 1; - wirequads = 0; - } else if( display_method == N_OUTLINE_QUAD ) { - wiretris = 0; - wirequads = 1; - } else { - wiretris = 1; - wirequads = 1; - } -} - -int -Renderhints::isProperty( long property ) -{ - switch ( property ) { - case N_DISPLAY: - case N_ERRORCHECKING: - case N_SUBDIVISIONS: - case N_TMP1: - return 1; - default: - return 0; - } -} - -REAL -Renderhints::getProperty( long property ) -{ - switch ( property ) { - case N_DISPLAY: - return display_method; - case N_ERRORCHECKING: - return errorchecking; - case N_SUBDIVISIONS: - return subdivisions; - case N_TMP1: - return tmp1; - default: - abort(); - return -1; //not necessary, needed to shut up compiler - } -} - -void -Renderhints::setProperty( long property, REAL value ) -{ - switch ( property ) { - case N_DISPLAY: - display_method = value; - break; - case N_ERRORCHECKING: - errorchecking = value; - break; - case N_SUBDIVISIONS: - subdivisions = value; - break; - case N_TMP1: /* unused */ - tmp1 = value; - break; - default: - abort(); - break; - } -} diff --git a/src/glu/sgi/libnurbs/internals/renderhints.h b/src/glu/sgi/libnurbs/internals/renderhints.h deleted file mode 100644 index 444f649be23..00000000000 --- a/src/glu/sgi/libnurbs/internals/renderhints.h +++ /dev/null @@ -1,60 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * renderhints.h - * - */ - -#ifndef __glurenderhints_h_ -#define __glurenderhints_h_ - -#include "types.h" - -class Renderhints { -public: - Renderhints( void ); - void init( void ); - int isProperty( long ); - REAL getProperty( long ); - void setProperty( long, REAL ); - - REAL display_method; /* display mode */ - REAL errorchecking; /* activate error checking */ - REAL subdivisions; /* maximum number of subdivisions per patch */ - REAL tmp1; /* unused */ - - int displaydomain; - int maxsubdivisions; - int wiretris; - int wirequads; -}; - -#endif /* __glurenderhints_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/simplemath.h b/src/glu/sgi/libnurbs/internals/simplemath.h deleted file mode 100644 index d00062dc700..00000000000 --- a/src/glu/sgi/libnurbs/internals/simplemath.h +++ /dev/null @@ -1,52 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * simplemath.h - * - */ - -#ifndef __glusimplemath_h_ -#define __glusimplemath_h_ - -/* simple inline routines */ - -#include "types.h" - -inline int -max( int x, int y ) { return ( x < y ) ? y : x; } - -inline REAL -min( REAL x, REAL y ) { return ( x > y ) ? y : x; } - -inline REAL -glu_abs( REAL x ) { return ( x < 0.0 ) ? -x : x; } - -#endif /* __glusimplemath_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/slicer.cc b/src/glu/sgi/libnurbs/internals/slicer.cc deleted file mode 100644 index 1b18d73c176..00000000000 --- a/src/glu/sgi/libnurbs/internals/slicer.cc +++ /dev/null @@ -1,1304 +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. -*/ - -/* - * slicer.c++ - * - */ - -#include <stdlib.h> -#include <stdio.h> -#include <math.h> -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "bufpool.h" -#include "slicer.h" -#include "backend.h" -#include "arc.h" -#include "gridtrimvertex.h" -#include "simplemath.h" -#include "trimvertex.h" -#include "varray.h" - -#include "polyUtil.h" //for area() - -//static int count=0; - -/*USE_OPTTT is initiated in trimvertex.h*/ - -#ifdef USE_OPTTT - #include <GL/gl.h> -#endif - -//#define USE_READ_FLAG //whether to use new or old tesselator - //if defined, it reads "flagFile", - // if the number is 1, then use new tess - // otherwise, use the old tess. - //if not defined, then use new tess. -#ifdef USE_READ_FLAG -static Int read_flag(char* name); -Int newtess_flag = read_flag("flagFile"); -#endif - -//#define COUNT_TRIANGLES -#ifdef COUNT_TRIANGLES -Int num_triangles = 0; -Int num_quads = 0; -#endif - -#define max(a,b) ((a>b)? a:b) -#define ZERO 0.00001 /*determing whether a loop is a rectngle or not*/ -#define equalRect(a,b) ((glu_abs(a-b) <= ZERO)? 1:0) //only used in tessellating a rectangle - -#if 0 // UNUSED -static Int is_Convex(Arc_ptr loop) -{ - if(area(loop->tail(), loop->head(), loop->next->head()) <0 ) - return 0; - for(Arc_ptr jarc = loop->next; jarc != loop; jarc = jarc->next) - { - if(area(jarc->tail(), jarc->head(), jarc->next->head()) < 0) - return 0; - } - return 1; -} -#endif - -/******triangulate a monotone polygon**************/ -#include "monoTriangulation.h" -#if 0 // UNUSED -static int is_U_monotone(Arc_ptr loop) -{ - int n_changes=0; - int prev_sign; - int cur_sign; - Arc_ptr temp; - - cur_sign = compV2InX(loop->head(), loop->tail()); - - n_changes = (compV2InX(loop->prev->head(), loop->prev->tail()) - != cur_sign); - - for(temp=loop->next; temp != loop; temp = temp->next) - { - prev_sign = cur_sign; - cur_sign = compV2InX(temp->head(), temp->tail()); - if(cur_sign != prev_sign) - { -#ifdef DEBUG - printf("***change signe\n"); -#endif - n_changes++; - } - } - if(n_changes == 2) return 1; - else - return 0; -} -#endif - -inline int compInY(REAL a[2], REAL b[2]) -{ - if(a[1] < b[1]) - return -1; - else if (a[1] > b[1]) - return 1; - else if(a[0] > b[0]) - return 1; - else return -1; -} - -void monoTriangulationLoop(Arc_ptr loop, Backend& backend, primStream* pStream) -{ - int i; - //find the top, bottom, increasing and decreasing chain - //then call monoTrianulation - Arc_ptr jarc, temp; - Arc_ptr top; - Arc_ptr bot; - top = bot = loop; - if(compInY(loop->tail(), loop->prev->tail()) < 0) - { - //first find bot - for(temp = loop->next; temp != loop; temp = temp->next) - { - if(compInY(temp->tail(), temp->prev->tail()) > 0) - break; - } - bot = temp->prev; - //then find top - for(temp=loop->prev; temp != loop; temp = temp->prev) - { - if(compInY(temp->tail(), temp->prev->tail()) > 0) - break; - } - top = temp; - } - else //loop > loop->prev - { - for(temp=loop->next; temp != loop; temp = temp->next) - { - if(compInY(temp->tail(), temp->prev->tail()) < 0) - break; - } - top = temp->prev; - for(temp=loop->prev; temp != loop; temp = temp->prev) - { - if(compInY(temp->tail(), temp->prev->tail()) < 0) - break; - } - bot = temp; - } - //creat increase and decrease chains - vertexArray inc_chain(50); //this is a dynamci array - for(i=1; i<=top->pwlArc->npts-2; i++) - { - //the first vertex is the top which doesn't below to inc_chain - inc_chain.appendVertex(top->pwlArc->pts[i].param); - } - for(jarc=top->next; jarc != bot; jarc = jarc->next) - { - for(i=0; i<=jarc->pwlArc->npts-2; i++) - { - inc_chain.appendVertex(jarc->pwlArc->pts[i].param); - } - - } - vertexArray dec_chain(50); - for(jarc = top->prev; jarc != bot; jarc = jarc->prev) - { - for(i=jarc->pwlArc->npts-2; i>=0; i--) - { - dec_chain.appendVertex(jarc->pwlArc->pts[i].param); - } - } - for(i=bot->pwlArc->npts-2; i>=1; i--) - { - dec_chain.appendVertex(jarc->pwlArc->pts[i].param); - } - - monoTriangulationRec(top->tail(), bot->tail(), &inc_chain, 0, - &dec_chain, 0, &backend); - -} - -/********tesselate a rectanlge (OPTIMIZATION**************/ -static void triangulateRectGen(Arc_ptr loop, int n_ulines, int n_vlines, Backend& backend); - -static Int is_rect(Arc_ptr loop) -{ - Int nlines =1; - for(Arc_ptr jarc = loop->next; jarc != loop; jarc = jarc->next) - { - nlines++; - if(nlines == 5) - break; - } - if(nlines != 4) - return 0; - - -/* -printf("here1\n"); -printf("loop->tail=(%f,%f)\n", loop->tail()[0], loop->tail()[1]); -printf("loop->head=(%f,%f)\n", loop->head()[0], loop->head()[1]); -printf("loop->next->tail=(%f,%f)\n", loop->next->tail()[0], loop->next->tail()[1]); -printf("loop->next->head=(%f,%f)\n", loop->next->head()[0], loop->next->head()[1]); -if(fglu_abs(loop->tail()[0] - loop->head()[0])<0.000001) - printf("equal 1\n"); -if(loop->next->tail()[1] == loop->next->head()[1]) - printf("equal 2\n"); -*/ - - if( (glu_abs(loop->tail()[0] - loop->head()[0])<=ZERO) && - (glu_abs(loop->next->tail()[1] - loop->next->head()[1])<=ZERO) && - (glu_abs(loop->prev->tail()[1] - loop->prev->head()[1])<=ZERO) && - (glu_abs(loop->prev->prev->tail()[0] - loop->prev->prev->head()[0])<=ZERO) - ) - return 1; - else if - ( (glu_abs(loop->tail()[1] - loop->head()[1]) <= ZERO) && - (glu_abs(loop->next->tail()[0] - loop->next->head()[0]) <= ZERO) && - (glu_abs(loop->prev->tail()[0] - loop->prev->head()[0]) <= ZERO) && - (glu_abs(loop->prev->prev->tail()[1] - loop->prev->prev->head()[1]) <= ZERO) - ) - return 1; - else - return 0; -} - - -//a line with the same u for opt -#ifdef USE_OPTTT -static void evalLineNOGE_BU(TrimVertex *verts, int n, Backend& backend) -{ - int i; - backend.preEvaluateBU(verts[0].param[0]); - for(i=0; i<n; i++) - backend.tmeshvertNOGE_BU(&verts[i]); -} -#endif - -//a line with the same v for opt -#ifdef USE_OPTTT -static void evalLineNOGE_BV(TrimVertex *verts, int n, Backend& backend) -{ - int i; - backend.preEvaluateBV(verts[0].param[1]); - - for(i=0; i<n; i++) - backend.tmeshvertNOGE_BV(&verts[i]); -} -#endif - -#ifdef USE_OPTTT -static void evalLineNOGE(TrimVertex *verts, int n, Backend& backend) -{ - - if(verts[0].param[0] == verts[n-1].param[0]) //all u;s are equal - evalLineNOGE_BU(verts, n, backend); - else if(verts[0].param[1] == verts[n-1].param[1]) //all v's are equal - evalLineNOGE_BV(verts, n, backend); - else - { - int i; - for(i=0; i<n; i++) - backend.tmeshvertNOGE(&verts[i]); - } -} -#endif - -inline void OPT_OUTVERT(TrimVertex& vv, Backend& backend) -{ - -#ifdef USE_OPTTT - glNormal3fv(vv.cache_normal); - glVertex3fv(vv.cache_point); -#else - - backend.tmeshvert(&vv); - -#endif - -} - -static void triangulateRectAux(PwlArc* top, PwlArc* bot, PwlArc* left, PwlArc* right, Backend& backend); - -static void triangulateRect(Arc_ptr loop, Backend& backend, int TB_or_LR, int ulinear, int vlinear) -{ - //we know the loop is a rectangle, but not sure which is top - Arc_ptr top, bot, left, right; - if(loop->tail()[1] == loop->head()[1]) - { - if(loop->tail()[1] > loop->prev->prev->tail()[1]) - { - - top = loop; - } - else{ - - top = loop->prev->prev; - } - } - else - { - if(loop->tail()[0] > loop->prev->prev->tail()[0]) - { - //loop is the right arc - - top = loop->next; - } - else - { - - top = loop->prev; - } - } - left = top->next; - bot = left->next; - right= bot->next; - - //if u, v are both nonlinear, then if the - //boundary is tessellated dense, we also - //sample the inside to get a better tesslletant. - if( (!ulinear) && (!vlinear)) - { - int nu = top->pwlArc->npts; - if(nu < bot->pwlArc->npts) - nu = bot->pwlArc->npts; - int nv = left->pwlArc->npts; - if(nv < right->pwlArc->npts) - nv = right->pwlArc->npts; -/* - if(nu > 2 && nv > 2) - { - triangulateRectGen(top, nu-2, nv-2, backend); - return; - } -*/ - } - - if(TB_or_LR == 1) - triangulateRectAux(top->pwlArc, bot->pwlArc, left->pwlArc, right->pwlArc, backend); - else if(TB_or_LR == -1) - triangulateRectAux(left->pwlArc, right->pwlArc, bot->pwlArc, top->pwlArc, backend); - else - { - Int maxPointsTB = top->pwlArc->npts + bot->pwlArc->npts; - Int maxPointsLR = left->pwlArc->npts + right->pwlArc->npts; - - if(maxPointsTB < maxPointsLR) - triangulateRectAux(left->pwlArc, right->pwlArc, bot->pwlArc, top->pwlArc, backend); - else - triangulateRectAux(top->pwlArc, bot->pwlArc, left->pwlArc, right->pwlArc, backend); - } -} - -static void triangulateRectAux(PwlArc* top, PwlArc* bot, PwlArc* left, PwlArc* right, Backend& backend) -{ //if(maxPointsTB >= maxPointsLR) - { - - Int d, topd_left, topd_right, botd_left, botd_right, i,j; - d = left->npts /2; - -#ifdef USE_OPTTT - evalLineNOGE(top->pts, top->npts, backend); - evalLineNOGE(bot->pts, bot->npts, backend); - evalLineNOGE(left->pts, left->npts, backend); - evalLineNOGE(right->pts, right->npts, backend); -#endif - - if(top->npts == 2) { - backend.bgntfan(); - OPT_OUTVERT(top->pts[0], backend);//the root - for(i=0; i<left->npts; i++){ - OPT_OUTVERT(left->pts[i], backend); - } - for(i=1; i<= bot->npts-2; i++){ - OPT_OUTVERT(bot->pts[i], backend); - } - backend.endtfan(); - - backend.bgntfan(); - OPT_OUTVERT(bot->pts[bot->npts-2], backend); - for(i=0; i<right->npts; i++){ - OPT_OUTVERT(right->pts[i], backend); - } - backend.endtfan(); - } - else if(bot->npts == 2) { - backend.bgntfan(); - OPT_OUTVERT(bot->pts[0], backend);//the root - for(i=0; i<right->npts; i++){ - OPT_OUTVERT(right->pts[i], backend); - } - for(i=1; i<= top->npts-2; i++){ - OPT_OUTVERT(top->pts[i], backend); - } - backend.endtfan(); - - backend.bgntfan(); - OPT_OUTVERT(top->pts[top->npts-2], backend); - for(i=0; i<left->npts; i++){ - OPT_OUTVERT(left->pts[i], backend); - } - backend.endtfan(); - } - else { //both top and bot have >=3 points - - backend.bgntfan(); - - OPT_OUTVERT(top->pts[top->npts-2], backend); - - for(i=0; i<=d; i++) - { - OPT_OUTVERT(left->pts[i], backend); - } - backend.endtfan(); - - backend.bgntfan(); - - OPT_OUTVERT(bot->pts[1], backend); - - OPT_OUTVERT(top->pts[top->npts-2], backend); - - for(i=d; i< left->npts; i++) - { - OPT_OUTVERT(left->pts[i], backend); - } - backend.endtfan(); - - d = right->npts/2; - //output only when d<right->npts-1 and - // - if(d<right->npts-1) - { - backend.bgntfan(); - // backend.tmeshvert(& top->pts[1]); - OPT_OUTVERT(top->pts[1], backend); - for(i=d; i< right->npts; i++) - { - // backend.tmeshvert(& right->pts[i]); - - OPT_OUTVERT(right->pts[i], backend); - - } - backend.endtfan(); - } - - backend.bgntfan(); - // backend.tmeshvert(& bot->pts[bot->npts-2]); - OPT_OUTVERT( bot->pts[bot->npts-2], backend); - for(i=0; i<=d; i++) - { - // backend.tmeshvert(& right->pts[i]); - OPT_OUTVERT(right->pts[i], backend); - - } - - // backend.tmeshvert(& top->pts[1]); - OPT_OUTVERT(top->pts[1], backend); - - backend.endtfan(); - - - topd_left = top->npts-2; - topd_right = 1; //topd_left>= topd_right - - botd_left = 1; - botd_right = bot->npts-2; //botd_left<= bot_dright - - - if(top->npts < bot->npts) - { - int delta=bot->npts - top->npts; - int u = delta/2; - botd_left = 1+ u; - botd_right = bot->npts-2-( delta-u); - - if(botd_left >1) - { - backend.bgntfan(); - // backend.tmeshvert(& top->pts[top->npts-2]); - OPT_OUTVERT(top->pts[top->npts-2], backend); - for(i=1; i<= botd_left; i++) - { - // backend.tmeshvert(& bot->pts[i]); - OPT_OUTVERT(bot->pts[i] , backend); - } - backend.endtfan(); - } - if(botd_right < bot->npts-2) - { - backend.bgntfan(); - OPT_OUTVERT(top->pts[1], backend); - for(i=botd_right; i<= bot->npts-2; i++) - OPT_OUTVERT(bot->pts[i], backend); - backend.endtfan(); - } - } - else if(top->npts> bot->npts) - { - int delta=top->npts-bot->npts; - int u = delta/2; - topd_left = top->npts-2 - u; - topd_right = 1+delta-u; - - if(topd_left < top->npts-2) - { - backend.bgntfan(); - // backend.tmeshvert(& bot->pts[1]); - OPT_OUTVERT(bot->pts[1], backend); - for(i=topd_left; i<= top->npts-2; i++) - { - // backend.tmeshvert(& top->pts[i]); - OPT_OUTVERT(top->pts[i], backend); - } - backend.endtfan(); - } - if(topd_right > 1) - { - backend.bgntfan(); - OPT_OUTVERT(bot->pts[bot->npts-2], backend); - for(i=1; i<= topd_right; i++) - OPT_OUTVERT(top->pts[i], backend); - backend.endtfan(); - } - } - - if(topd_left <= topd_right) - return; - - backend.bgnqstrip(); - for(j=botd_left, i=topd_left; i>=topd_right; i--,j++) - { - // backend.tmeshvert(& top->pts[i]); - // backend.tmeshvert(& bot->pts[j]); - OPT_OUTVERT(top->pts[i], backend); - OPT_OUTVERT(bot->pts[j], backend); - } - backend.endqstrip(); - - } - } -} - - -static void triangulateRectCenter(int n_ulines, REAL* u_val, - int n_vlines, REAL* v_val, - Backend& backend) -{ - - // XXX this code was patched by Diego Santa Cruz <Diego.SantaCruz@epfl.ch> - // to fix a problem in which glMapGrid2f() was called with bad parameters. - // This has beens submitted to SGI but not integrated as of May 1, 2001. - if(n_ulines>1 && n_vlines>1) { - backend.surfgrid(u_val[0], u_val[n_ulines-1], n_ulines-1, - v_val[n_vlines-1], v_val[0], n_vlines-1); - backend.surfmesh(0,0,n_ulines-1,n_vlines-1); - } - - return; - - /* - for(i=0; i<n_vlines-1; i++) - { - - backend.bgnqstrip(); - for(j=0; j<n_ulines; j++) - { - trimVert.param[0] = u_val[j]; - trimVert.param[1] = v_val[i+1]; - backend.tmeshvert(& trimVert); - - trimVert.param[1] = v_val[i]; - backend.tmeshvert(& trimVert); - } - backend.endqstrip(); - - } - */ -} - -//it works for top, bot, left ad right, you need ot select correct arguments -static void triangulateRectTopGen(Arc_ptr arc, int n_ulines, REAL* u_val, Real v, int dir, int is_u, Backend& backend) -{ - - if(is_u) - { - int i,k; - REAL* upper_val = (REAL*) malloc(sizeof(REAL) * arc->pwlArc->npts); - assert(upper_val); - if(dir) - { - for(k=0,i=arc->pwlArc->npts-1; i>=0; i--,k++) - { - upper_val[k] = arc->pwlArc->pts[i].param[0]; - } - backend.evalUStrip(arc->pwlArc->npts, arc->pwlArc->pts[0].param[1], - upper_val, - n_ulines, v, u_val); - } - else - { - for(k=0,i=0; i<arc->pwlArc->npts; i++,k++) - { - upper_val[k] = arc->pwlArc->pts[i].param[0]; - - } - - backend.evalUStrip( - n_ulines, v, u_val, - arc->pwlArc->npts, arc->pwlArc->pts[0].param[1], upper_val - ); - } - - free(upper_val); - return; - } - else //is_v - { - int i,k; - REAL* left_val = (REAL*) malloc(sizeof(REAL) * arc->pwlArc->npts); - assert(left_val); - if(dir) - { - for(k=0,i=arc->pwlArc->npts-1; i>=0; i--,k++) - { - left_val[k] = arc->pwlArc->pts[i].param[1]; - } - backend.evalVStrip(arc->pwlArc->npts, arc->pwlArc->pts[0].param[0], - left_val, - n_ulines, v, u_val); - } - else - { - for(k=0,i=0; i<arc->pwlArc->npts; i++,k++) - { - left_val[k] = arc->pwlArc->pts[i].param[1]; - } - backend.evalVStrip( - n_ulines, v, u_val, - arc->pwlArc->npts, arc->pwlArc->pts[0].param[0], left_val - ); - } - free(left_val); - return; - } - - //the following is a different version of the above code. If you comment - //the above code, the following code will still work. The reason to leave - //the folliwng code here is purely for testing purpose. - /* - int i,j; - PwlArc* parc = arc->pwlArc; - int d1 = parc->npts-1; - int d2 = 0; - TrimVertex trimVert; - trimVert.nuid = 0;//???? - REAL* temp_u_val = u_val; - if(dir ==0) //have to reverse u_val - { - temp_u_val = (REAL*) malloc(sizeof(REAL) * n_ulines); - assert(temp_u_val); - for(i=0; i<n_ulines; i++) - temp_u_val[i] = u_val[n_ulines-1-i]; - } - u_val = temp_u_val; - - if(parc->npts > n_ulines) - { - d1 = n_ulines-1; - - backend.bgntfan(); - if(is_u){ - trimVert.param[0] = u_val[0]; - trimVert.param[1] = v; - } - else - { - trimVert.param[1] = u_val[0]; - trimVert.param[0] = v; - } - - backend.tmeshvert(& trimVert); - for(i=d1; i< parc->npts; i++) - backend.tmeshvert(& parc->pts[i]); - backend.endtfan(); - - - } - else if(parc->npts < n_ulines) - { - d2 = n_ulines-parc->npts; - - - backend.bgntfan(); - backend.tmeshvert(& parc->pts[parc->npts-1]); - for(i=0; i<= d2; i++) - { - if(is_u){ - trimVert.param[0] = u_val[i]; - trimVert.param[1] = v; - } - else - { - trimVert.param[1] = u_val[i]; - trimVert.param[0] = v; - } - backend.tmeshvert(&trimVert); - } - backend.endtfan(); - - } - if(d1>0){ - - - backend.bgnqstrip(); - for(i=d1, j=d2; i>=0; i--, j++) - { - backend.tmeshvert(& parc->pts[i]); - - if(is_u){ - trimVert.param[0] = u_val[j]; - trimVert.param[1] = v; - } - else{ - trimVert.param[1] = u_val[j]; - trimVert.param[0] = v; - } - backend.tmeshvert(&trimVert); - - - - } - backend.endqstrip(); - - - } - if(dir == 0) //temp_u_val was mallocated - free(temp_u_val); - */ -} - -//n_ulines is the number of ulines inside, and n_vlines is the number of vlines -//inside, different from meanings elsewhere!!! -static void triangulateRectGen(Arc_ptr loop, int n_ulines, int n_vlines, Backend& backend) -{ - - int i; - //we know the loop is a rectangle, but not sure which is top - Arc_ptr top, bot, left, right; - - if(equalRect(loop->tail()[1] , loop->head()[1])) - { - - if(loop->tail()[1] > loop->prev->prev->tail()[1]) - { - - top = loop; - } - else{ - - top = loop->prev->prev; - } - } - else - { - if(loop->tail()[0] > loop->prev->prev->tail()[0]) - { - //loop is the right arc - - top = loop->next; - } - else - { - - top = loop->prev; - } - } - - left = top->next; - bot = left->next; - right= bot->next; - -#ifdef COUNT_TRIANGLES - num_triangles += loop->pwlArc->npts + - left->pwlArc->npts + - bot->pwlArc->npts + - right->pwlArc->npts - + 2*n_ulines + 2*n_vlines - -8; - num_quads += (n_ulines-1)*(n_vlines-1); -#endif -/* - backend.surfgrid(left->tail()[0], right->tail()[0], n_ulines+1, - top->tail()[1], bot->tail()[1], n_vlines+1); -// if(n_ulines>1 && n_vlines>1) - backend.surfmesh(0,0,n_ulines+1,n_vlines+1); -return; -*/ - REAL* u_val=(REAL*) malloc(sizeof(REAL)*n_ulines); - assert(u_val); - REAL* v_val=(REAL*)malloc(sizeof(REAL) * n_vlines); - assert(v_val); - REAL u_stepsize = (right->tail()[0] - left->tail()[0])/( (REAL) n_ulines+1); - REAL v_stepsize = (top->tail()[1] - bot->tail()[1])/( (REAL) n_vlines+1); - Real temp=left->tail()[0]+u_stepsize; - for(i=0; i<n_ulines; i++) - { - u_val[i] = temp; - temp += u_stepsize; - } - temp = bot->tail()[1] + v_stepsize; - for(i=0; i<n_vlines; i++) - { - v_val[i] = temp; - temp += v_stepsize; - } - - triangulateRectTopGen(top, n_ulines, u_val, v_val[n_vlines-1], 1,1, backend); - triangulateRectTopGen(bot, n_ulines, u_val, v_val[0], 0, 1, backend); - triangulateRectTopGen(left, n_vlines, v_val, u_val[0], 1, 0, backend); - triangulateRectTopGen(right, n_vlines, v_val, u_val[n_ulines-1], 0,0, backend); - - - - - //triangulate the center - triangulateRectCenter(n_ulines, u_val, n_vlines, v_val, backend); - - free(u_val); - free(v_val); - -} - - - - -/**********for reading newtess_flag from a file**********/ -#ifdef USE_READ_FLAG -static Int read_flag(char* name) -{ - Int ret; - FILE* fp = fopen(name, "r"); - if(fp == NULL) - { - fprintf(stderr, "can't open file %s\n", name); - exit(1); - } - fscanf(fp, "%i", &ret); - fclose(fp); - return ret; -} -#endif - -/***********nextgen tess****************/ -#include "sampleMonoPoly.h" -directedLine* arcToDLine(Arc_ptr arc) -{ - int i; - Real vert[2]; - directedLine* ret; - sampledLine* sline = new sampledLine(arc->pwlArc->npts); - for(i=0; i<arc->pwlArc->npts; i++) - { - vert[0] = arc->pwlArc->pts[i].param[0]; - vert[1] = arc->pwlArc->pts[i].param[1]; - sline->setPoint(i, vert); - } - ret = new directedLine(INCREASING, sline); - return ret; -} - -/*an pwlArc may not be a straight line*/ -directedLine* arcToMultDLines(directedLine* original, Arc_ptr arc) -{ - directedLine* ret = original; - int is_linear = 0; - if(arc->pwlArc->npts == 2 ) - is_linear = 1; - else if(area(arc->pwlArc->pts[0].param, arc->pwlArc->pts[1].param, arc->pwlArc->pts[arc->pwlArc->npts-1].param) == 0.0) - is_linear = 1; - - if(is_linear) - { - directedLine *dline = arcToDLine(arc); - if(ret == NULL) - ret = dline; - else - ret->insert(dline); - return ret; - } - else /*not linear*/ - { - for(Int i=0; i<arc->pwlArc->npts-1; i++) - { - Real vert[2][2]; - vert[0][0] = arc->pwlArc->pts[i].param[0]; - vert[0][1] = arc->pwlArc->pts[i].param[1]; - vert[1][0] = arc->pwlArc->pts[i+1].param[0]; - vert[1][1] = arc->pwlArc->pts[i+1].param[1]; - - sampledLine *sline = new sampledLine(2, vert); - directedLine *dline = new directedLine(INCREASING, sline); - if(ret == NULL) - ret = dline; - else - ret->insert(dline); - } - return ret; - } -} - - - -directedLine* arcLoopToDLineLoop(Arc_ptr loop) -{ - directedLine* ret; - - if(loop == NULL) - return NULL; - ret = arcToMultDLines(NULL, loop); -//ret->printSingle(); - for(Arc_ptr temp = loop->next; temp != loop; temp = temp->next){ - ret = arcToMultDLines(ret, temp); -//ret->printSingle(); - } - - return ret; -} - -/* -void Slicer::evalRBArray(rectBlockArray* rbArray, gridWrap* grid) -{ - TrimVertex *trimVert = (TrimVertex*)malloc(sizeof(TrimVertex)); - trimVert -> nuid = 0;//???? - - Real* u_values = grid->get_u_values(); - Real* v_values = grid->get_v_values(); - - Int i,j,k,l; - - for(l=0; l<rbArray->get_n_elements(); l++) - { - rectBlock* block = rbArray->get_element(l); - for(k=0, i=block->get_upGridLineIndex(); i>block->get_lowGridLineIndex(); i--, k++) - { - - backend.bgnqstrip(); - for(j=block->get_leftIndices()[k+1]; j<= block->get_rightIndices()[k+1]; j++) - { - trimVert->param[0] = u_values[j]; - trimVert->param[1] = v_values[i]; - backend.tmeshvert(trimVert); - - trimVert->param[1] = v_values[i-1]; - backend.tmeshvert(trimVert); - - } - backend.endqstrip(); - - } - } - - free(trimVert); -} -*/ - -void Slicer::evalRBArray(rectBlockArray* rbArray, gridWrap* grid) -{ - Int i,j,k; - - Int n_vlines=grid->get_n_vlines(); - //the reason to switch the position of v_max and v_min is because of the - //the orientation problem. glEvalMesh generates quad_strip clockwise, but - //we need counter-clockwise. - backend.surfgrid(grid->get_u_min(), grid->get_u_max(), grid->get_n_ulines()-1, - grid->get_v_max(), grid->get_v_min(), n_vlines-1); - - - for(j=0; j<rbArray->get_n_elements(); j++) - { - rectBlock* block = rbArray->get_element(j); - Int low = block->get_lowGridLineIndex(); - Int high = block->get_upGridLineIndex(); - - for(k=0, i=high; i>low; i--, k++) - { - backend.surfmesh(block->get_leftIndices()[k+1], n_vlines-1-i, block->get_rightIndices()[k+1]-block->get_leftIndices()[k+1], 1); - } - } -} - - -void Slicer::evalStream(primStream* pStream) -{ - Int i,j,k; - k=0; -/* TrimVertex X;*/ - TrimVertex *trimVert =/*&X*/ (TrimVertex*)malloc(sizeof(TrimVertex)); - trimVert -> nuid = 0;//??? - Real* vertices = pStream->get_vertices(); //for efficiency - for(i=0; i<pStream->get_n_prims(); i++) - { - - //ith primitive has #vertices = lengths[i], type=types[i] - switch(pStream->get_type(i)){ - case PRIMITIVE_STREAM_FAN: - - backend.bgntfan(); - - for(j=0; j<pStream->get_length(i); j++) - { - trimVert->param[0] = vertices[k]; - trimVert->param[1] = vertices[k+1]; - backend.tmeshvert(trimVert); - -// backend.tmeshvert(vertices[k], vertices[k+1]); - k += 2; - } - backend.endtfan(); - break; - - default: - fprintf(stderr, "evalStream: not implemented yet\n"); - exit(1); - - } - } - free(trimVert); -} - - - - -void Slicer::slice_new(Arc_ptr loop) -{ -//count++; -//if(count == 78) count=1; -//printf("count=%i\n", count); -//if( ! (4<= count && count <=4)) return; - - - Int num_ulines; - Int num_vlines; - Real uMin, uMax, vMin, vMax; - Real mydu, mydv; - uMin = uMax = loop->tail()[0]; - vMin = vMax = loop->tail()[1]; - mydu = (du>0)? du: -du; - mydv = (dv>0)? dv: -dv; - - for(Arc_ptr jarc=loop->next; jarc != loop; jarc = jarc->next) - { - - if(jarc->tail()[0] < uMin) - uMin = jarc->tail()[0]; - if(jarc->tail()[0] > uMax) - uMax = jarc->tail()[0]; - if(jarc->tail()[1] < vMin) - vMin = jarc->tail()[1]; - if(jarc->tail()[1] > vMax) - vMax = jarc->tail()[1]; - } - - if (uMax == uMin) - return; // prevent divide-by-zero. Jon Perry. 17 June 2002 - - if(mydu > uMax - uMin) - num_ulines = 2; - else - { - num_ulines = 3 + (Int) ((uMax-uMin)/mydu); - } - if(mydv>=vMax-vMin) - num_vlines = 2; - else - { - num_vlines = 2+(Int)((vMax-vMin)/mydv); - } - - Int isRect = is_rect(loop); - - if(isRect && (num_ulines<=2 || num_vlines<=2)) - { - if(vlinear) - triangulateRect(loop, backend, 1, ulinear, vlinear); - else if(ulinear) - triangulateRect(loop, backend, -1, ulinear, vlinear); - else - triangulateRect(loop, backend, 0, ulinear, vlinear); - } - - else if(isRect) - { - triangulateRectGen(loop, num_ulines-2, num_vlines-2, backend); - } - else if( (num_ulines<=2 || num_vlines <=2) && ulinear) - { - monoTriangulationFunBackend(loop, compV2InY, &backend); - } - else if( (!ulinear) && (!vlinear) && (num_ulines == 2) && (num_vlines > 2)) - { - monoTriangulationFunBackend(loop, compV2InY, &backend); - } - else - { - directedLine* poly = arcLoopToDLineLoop(loop); - - gridWrap grid(num_ulines, num_vlines, uMin, uMax, vMin, vMax); - primStream pStream(20, 20); - rectBlockArray rbArray(20); - - sampleMonoPoly(poly, &grid, ulinear, vlinear, &pStream, &rbArray); - - evalStream(&pStream); - - evalRBArray(&rbArray, &grid); - -#ifdef COUNT_TRIANGLES - num_triangles += pStream.num_triangles(); - num_quads += rbArray.num_quads(); -#endif - poly->deleteSinglePolygonWithSline(); - } - -#ifdef COUNT_TRIANGLES - printf("num_triangles=%i\n", num_triangles); - printf("num_quads = %i\n", num_quads); -#endif -} - -void Slicer::slice(Arc_ptr loop) -{ -#ifdef USE_READ_FLAG - if(read_flag("flagFile")) - slice_new(loop); - else - slice_old(loop); - -#else - slice_new(loop); -#endif - -} - - - -Slicer::Slicer( Backend &b ) - : CoveAndTiler( b ), Mesher( b ), backend( b ) -{ - oneOverDu = 0; - du = 0; - dv = 0; - isolines = 0; - ulinear = 0; - vlinear = 0; -} - -Slicer::~Slicer() -{ -} - -void -Slicer::setisolines( int x ) -{ - isolines = x; -} - -void -Slicer::setstriptessellation( REAL x, REAL y ) -{ - assert(x > 0 && y > 0); - du = x; - dv = y; - setDu( du ); -} - -void -Slicer::slice_old( Arc_ptr loop ) -{ - loop->markverts(); - - Arc_ptr extrema[4]; - loop->getextrema( extrema ); - - unsigned int npts = loop->numpts(); - TrimRegion::init( npts, extrema[0] ); - - Mesher::init( npts ); - - long ulines = uarray.init( du, extrema[1], extrema[3] ); -//printf("ulines = %i\n", ulines); - Varray varray; - long vlines = varray.init( dv, extrema[0], extrema[2] ); -//printf("vlines = %i\n", vlines); - long botv = 0; - long topv; - TrimRegion::init( varray.varray[botv] ); - getGridExtent( &extrema[0]->pwlArc->pts[0], &extrema[0]->pwlArc->pts[0] ); - - for( long quad=0; quad<varray.numquads; quad++ ) { - backend.surfgrid( uarray.uarray[0], - uarray.uarray[ulines-1], - ulines-1, - varray.vval[quad], - varray.vval[quad+1], - varray.voffset[quad+1] - varray.voffset[quad] ); - - for( long i=varray.voffset[quad]+1; i <= varray.voffset[quad+1]; i++ ) { - topv = botv++; - advance( topv - varray.voffset[quad], - botv - varray.voffset[quad], - varray.varray[botv] ); - if( i == vlines ) - getPts( extrema[2] ); - else - getPts( backend ); - getGridExtent(); - if( isolines ) { - outline(); - } else { - if( canTile() ) - coveAndTile(); - else - mesh(); - } - } - } -} - - -void -Slicer::outline( void ) -{ - GridTrimVertex upper, lower; - Hull::init( ); - - backend.bgnoutline(); - while( (nextupper( &upper )) ) { - if( upper.isGridVert() ) - backend.linevert( upper.g ); - else - backend.linevert( upper.t ); - } - backend.endoutline(); - - backend.bgnoutline(); - while( (nextlower( &lower )) ) { - if( lower.isGridVert() ) - backend.linevert( lower.g ); - else - backend.linevert( lower.t ); - } - backend.endoutline(); -} - - -void -Slicer::outline( Arc_ptr jarc ) -{ - jarc->markverts(); - - if( jarc->pwlArc->npts >= 2 ) { - backend.bgnoutline(); - for( int j = jarc->pwlArc->npts-1; j >= 0; j-- ) - backend.linevert( &(jarc->pwlArc->pts[j]) ); - backend.endoutline(); - } -} - - diff --git a/src/glu/sgi/libnurbs/internals/slicer.h b/src/glu/sgi/libnurbs/internals/slicer.h deleted file mode 100644 index e1f5d22ff10..00000000000 --- a/src/glu/sgi/libnurbs/internals/slicer.h +++ /dev/null @@ -1,84 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * slicer.h - * - */ - -#ifndef __gluslicer_h_ -#define __gluslicer_h_ - -#include "trimregion.h" -#include "mesher.h" -#include "coveandtiler.h" -#include "primitiveStream.h" -#include "rectBlock.h" - -class Backend; -class Arc; -class TrimVertex; - -class Slicer : public CoveAndTiler, public Mesher { -public: - Slicer( Backend & ); - ~Slicer( void ); - void slice( Arc_ptr ); - void slice_old( Arc_ptr); - void slice_new( Arc_ptr ); - void evalStream(primStream* ); - void evalRBArray(rectBlockArray* rbArray, gridWrap* grid); - - void outline( Arc_ptr ); - void setstriptessellation( REAL, REAL ); - void setisolines( int ); - - void set_ulinear(int ulinear_flag) - { - ulinear = ulinear_flag; - } - void set_vlinear(int vlinear_flag) - { - vlinear = vlinear_flag; - } -private: - Backend& backend; - REAL oneOverDu; - REAL du, dv; - int isolines; - - void outline( void ); - void initGridlines( void ); - void advanceGridlines( long ); - - int ulinear; //indicate whether uorder is 2 or not - int vlinear; //indicate whether vorder is 2 or not -}; -#endif /* __gluslicer_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/sorter.cc b/src/glu/sgi/libnurbs/internals/sorter.cc deleted file mode 100644 index 7a79941492d..00000000000 --- a/src/glu/sgi/libnurbs/internals/sorter.cc +++ /dev/null @@ -1,139 +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. -*/ - -/* - * sorter.c++ - * - */ - -#include "glimports.h" -#include "sorter.h" -#include "mystdio.h" - -Sorter::Sorter( int _es ) -{ - es = _es; -} - -void -Sorter::qsort( void *a, int n ) -{ - qs1( (char *)a, ((char *)a)+n*es); -} - -int -Sorter::qscmp( char *, char * ) -{ - _glu_dprintf( "Sorter::qscmp: pure virtual called\n" ); - return 0; -} - - -void -Sorter::qsexc( char *, char * ) -{ - _glu_dprintf( "Sorter::qsexc: pure virtual called\n" ); -} - - -void -Sorter::qstexc( char *, char *, char * ) -{ - _glu_dprintf( "Sorter::qstexc: pure virtual called\n" ); -} - -void -Sorter::qs1( char *a, char *l ) -{ - char *i, *j; - char *lp, *hp; - int c; - unsigned int n; - -start: - if((n=l-a) <= (unsigned int)es) - return; - n = es * (n / (2*es)); - hp = lp = a+n; - i = a; - j = l-es; - while(1) { - if(i < lp) { - if((c = qscmp(i, lp)) == 0) { - qsexc(i, lp -= es); - continue; - } - if(c < 0) { - i += es; - continue; - } - } - -loop: - if(j > hp) { - if((c = qscmp(hp, j)) == 0) { - qsexc(hp += es, j); - goto loop; - } - if(c > 0) { - if(i == lp) { - qstexc(i, hp += es, j); - i = lp += es; - goto loop; - } - qsexc(i, j); - j -= es; - i += es; - continue; - } - j -= es; - goto loop; - } - - if(i == lp) { - if(lp-a >= l-hp) { - qs1(hp+es, l); - l = lp; - } else { - qs1(a, lp); - a = hp+es; - } - goto start; - } - - qstexc(j, lp -= es, i); - j = hp -= es; - } -} - diff --git a/src/glu/sgi/libnurbs/internals/sorter.h b/src/glu/sgi/libnurbs/internals/sorter.h deleted file mode 100644 index 57ea1212907..00000000000 --- a/src/glu/sgi/libnurbs/internals/sorter.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ -/* -*/ - -#ifndef __glusorter_h_ -#define __glusorter_h_ - -class Sorter { -public: - Sorter( int es ); - virtual ~Sorter() { /* silence warning*/ } - void qsort( void *a, int n ); - -protected: - virtual int qscmp( char *, char * ); - virtual void qsexc( char *i, char *j ); // i<-j, j<-i - virtual void qstexc( char *i, char *j, char *k ); // i<-k, k<-j, j<-i - -private: - void qs1( char *, char * ); - int es; -}; -#endif /* __glusorter_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/splitarcs.cc b/src/glu/sgi/libnurbs/internals/splitarcs.cc deleted file mode 100644 index 1f79d543fbc..00000000000 --- a/src/glu/sgi/libnurbs/internals/splitarcs.cc +++ /dev/null @@ -1,293 +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. -*/ - -/* - * splitarcs.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mysetjmp.h" -#include "mystdio.h" -#include "subdivider.h" -#include "arcsorter.h" -#include "arc.h" -#include "bin.h" - -/* local preprocessor definitions */ -#define MAXARCS 10 - -/*---------------------------------------------------------------------------- - * Subdivider::split - split trim regions in source bin by line (param == value). - *---------------------------------------------------------------------------- - */ - -void -Subdivider::split( Bin& bin, Bin& left, Bin& right, int param, REAL value ) -{ - Bin intersections, unknown; - - partition( bin, left, intersections, right, unknown, param, value ); - - int count = intersections.numarcs(); - if( count % 2 ) { -#ifndef NDEBUG - left.show( "left" ); - intersections.show( "intersections" ); - right.show( "right" ); -#endif - ::mylongjmp( jumpbuffer, 29 ); - } - - Arc_ptr arclist[MAXARCS], *list; - if( count >= MAXARCS ) { - list = new Arc_ptr[count]; - } else { - list = arclist; - } - - Arc_ptr jarc, *last, *lptr; - for( last = list; (jarc=intersections.removearc()) != NULL; last++ ) - *last = jarc; - - if( param == 0 ) { /* sort into increasing t order */ - ArcSdirSorter sorter(*this); - sorter.qsort( list, count ); - - //::qsort ((void *)list, count, sizeof(Arc_ptr), (cmpfunc)compare_s); - for( lptr=list; lptr<last; lptr+=2 ) - check_s ( lptr[0], lptr[1] ); - for( lptr=list; lptr<last; lptr+=2 ) - join_s ( left, right, lptr[0], lptr[1] ); - for( lptr=list; lptr != last; lptr++ ) { - if( ((*lptr)->head()[0] <= value) && ((*lptr)->tail()[0] <= value) ) - left.addarc( *lptr ); - else - right.addarc( *lptr ); - } - } else { /* sort into decreasing s order */ - ArcTdirSorter sorter(*this); - sorter.qsort( list, count ); - //::qsort ((void *)list, count, sizeof(Arc_ptr), (cmpfunc)compare_t); - for( lptr=list; lptr<last; lptr+=2 ) - check_t ( lptr[0], lptr[1] ); - for( lptr=list; lptr<last; lptr+=2 ) - join_t ( left, right, lptr[0], lptr[1] ); - for( lptr=list; lptr != last; lptr++ ) { - if( ((*lptr)->head()[1] <= value) && ((*lptr)->tail()[1] <= value) ) - left.addarc( *lptr ); - else - right.addarc( *lptr ); - } - } - - if( list != arclist ) delete[] list; - unknown.adopt(); -} - - -void -Subdivider::check_s( Arc_ptr jarc1, Arc_ptr jarc2 ) -{ - assert( jarc1->check( ) != 0 ); - assert( jarc2->check( ) != 0 ); - assert( jarc1->next->check( ) != 0 ); - assert( jarc2->next->check( ) != 0 ); - assert( jarc1 != jarc2 ); - - /* XXX - if these assertions fail, it is due to user error or - undersampling */ - if( ! ( jarc1->tail()[0] < (jarc1)->head()[0] ) ) { -#ifndef NDEBUG - _glu_dprintf( "s difference %f\n", (jarc1)->tail()[0] - (jarc1)->head()[0] ); -#endif - ::mylongjmp( jumpbuffer, 28 ); - } - - if( ! ( jarc2->tail()[0] > (jarc2)->head()[0] ) ) { -#ifndef NDEBUG - _glu_dprintf( "s difference %f\n", (jarc2)->tail()[0] - (jarc2)->head()[0] ); -#endif - ::mylongjmp( jumpbuffer, 28 ); - } -} - -inline void -Subdivider::link( Arc_ptr jarc1, Arc_ptr jarc2, Arc_ptr up, Arc_ptr down ) -{ - up->nuid = down->nuid = 0; // XXX - - up->next = jarc2; - down->next = jarc1; - up->prev = jarc1->prev; - down->prev = jarc2->prev; - - down->next->prev = down; - up->next->prev = up; - down->prev->next = down; - up->prev->next = up; -} - -inline void -Subdivider::simple_link( Arc_ptr jarc1, Arc_ptr jarc2 ) -{ - Arc_ptr tmp = jarc2->prev; - jarc2->prev = jarc1->prev; - jarc1->prev = tmp; - jarc2->prev->next = jarc2; - jarc1->prev->next = jarc1; -} - - -/*---------------------------------------------------------------------------- - * join - add a pair of oppositely directed jordan arcs between two arcs - *---------------------------------------------------------------------------- - */ - -void -Subdivider::join_s( Bin& left, Bin& right, Arc_ptr jarc1, Arc_ptr jarc2 ) -{ - assert( jarc1->check( ) != 0); - assert( jarc2->check( ) != 0); - assert( jarc1 != jarc2 ); - - if( ! jarc1->getitail() ) - jarc1 = jarc1->next; - - if( ! jarc2->getitail() ) - jarc2 = jarc2->next; - - REAL s = jarc1->tail()[0]; - REAL t1 = jarc1->tail()[1]; - REAL t2 = jarc2->tail()[1]; - - if( t1 == t2 ) { - simple_link( jarc1, jarc2 ); - } else { - Arc_ptr newright = new(arcpool) Arc( arc_right, 0 ); - Arc_ptr newleft = new(arcpool) Arc( arc_left, 0 ); - assert( t1 < t2 ); - if( isBezierArcType() ) { - arctessellator.bezier( newright, s, s, t1, t2 ); - arctessellator.bezier( newleft, s, s, t2, t1 ); - } else { - arctessellator.pwl_right( newright, s, t1, t2, stepsizes[0] ); - arctessellator.pwl_left( newleft, s, t2, t1, stepsizes[2] ); - } - link( jarc1, jarc2, newright, newleft ); - left.addarc( newright ); - right.addarc( newleft ); - } - - assert( jarc1->check( ) != 0 ); - assert( jarc2->check( ) != 0 ); - assert( jarc1->next->check( ) != 0); - assert( jarc2->next->check( ) != 0); -} - -void -Subdivider::check_t( Arc_ptr jarc1, Arc_ptr jarc2 ) -{ - assert( jarc1->check( ) != 0 ); - assert( jarc2->check( ) != 0 ); - assert( jarc1->next->check( ) != 0 ); - assert( jarc2->next->check( ) != 0 ); - assert( jarc1 != jarc2 ); - - /* XXX - if these assertions fail, it is due to user error or - undersampling */ - if( ! ( jarc1->tail()[1] < (jarc1)->head()[1] ) ) { -#ifndef NDEBUG - _glu_dprintf( "t difference %f\n", jarc1->tail()[1] - (jarc1)->head()[1] ); -#endif - ::mylongjmp( jumpbuffer, 28 ); - } - - if( ! ( jarc2->tail()[1] > (jarc2)->head()[1] ) ) { -#ifndef NDEBUG - _glu_dprintf( "t difference %f\n", jarc2->tail()[1] - (jarc2)->head()[1] ); -#endif - ::mylongjmp( jumpbuffer, 28 ); - } -} - -/*---------------------------------------------------------------------------- - * join_t - add a pair of oppositely directed jordan arcs between two arcs - *---------------------------------------------------------------------------- - */ - -void -Subdivider::join_t( Bin& bottom, Bin& top, Arc_ptr jarc1, Arc_ptr jarc2 ) -{ - assert( jarc1->check( ) != 0 ); - assert( jarc2->check( ) != 0 ); - assert( jarc1->next->check( ) != 0 ); - assert( jarc2->next->check( ) != 0 ); - assert( jarc1 != jarc2 ); - - if( ! jarc1->getitail() ) - jarc1 = jarc1->next; - - if( ! jarc2->getitail() ) - jarc2 = jarc2->next; - - REAL s1 = jarc1->tail()[0]; - REAL s2 = jarc2->tail()[0]; - REAL t = jarc1->tail()[1]; - - if( s1 == s2 ) { - simple_link( jarc1, jarc2 ); - } else { - Arc_ptr newtop = new(arcpool) Arc( arc_top, 0 ); - Arc_ptr newbot = new(arcpool) Arc( arc_bottom, 0 ); - assert( s1 > s2 ); - if( isBezierArcType() ) { - arctessellator.bezier( newtop, s1, s2, t, t ); - arctessellator.bezier( newbot, s2, s1, t, t ); - } else { - arctessellator.pwl_top( newtop, t, s1, s2, stepsizes[1] ); - arctessellator.pwl_bottom( newbot, t, s2, s1, stepsizes[3] ); - } - link( jarc1, jarc2, newtop, newbot ); - bottom.addarc( newtop ); - top.addarc( newbot ); - } - - assert( jarc1->check( ) != 0 ); - assert( jarc2->check( ) != 0 ); - assert( jarc1->next->check( ) != 0 ); - assert( jarc2->next->check( ) != 0 ); -} - diff --git a/src/glu/sgi/libnurbs/internals/subdivider.cc b/src/glu/sgi/libnurbs/internals/subdivider.cc deleted file mode 100644 index ccddc270ff9..00000000000 --- a/src/glu/sgi/libnurbs/internals/subdivider.cc +++ /dev/null @@ -1,912 +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. -*/ - -/* - * subdivider.cxx - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "subdivider.h" -#include "arc.h" -#include "bezierarc.h" -#include "bin.h" -#include "renderhints.h" -#include "backend.h" -#include "mapdesc.h" -#include "quilt.h" -#include "patchlist.h" -#include "patch.h" -#include "nurbsconsts.h" -#include "trimvertpool.h" -#include "simplemath.h" - -#include "polyUtil.h" //for function area() - -//#define PARTITION_TEST -#ifdef PARTITION_TEST -#include "partitionY.h" -#include "monoTriangulation.h" -#include "dataTransform.h" -#include "monoChain.h" - -#endif - - -#define OPTIMIZE_UNTRIMED_CASE - - -Bin* -Subdivider::makePatchBoundary( const REAL *from, const REAL *to ) -{ - Bin* ret = new Bin(); - REAL smin = from[0]; - REAL smax = to[0]; - REAL tmin = from[1]; - REAL tmax = to[1]; - - pjarc = 0; - - Arc_ptr jarc = new(arcpool) Arc( arc_bottom, 0 ); - arctessellator.bezier( jarc, smin, smax, tmin, tmin ); - ret->addarc( jarc ); - pjarc = jarc->append( pjarc ); - - jarc = new(arcpool) Arc( arc_right, 0 ); - arctessellator.bezier( jarc, smax, smax, tmin, tmax ); - ret->addarc( jarc ); - pjarc = jarc->append( pjarc ); - - jarc = new(arcpool) Arc( arc_top, 0 ); - arctessellator.bezier( jarc, smax, smin, tmax, tmax ); - ret->addarc( jarc ); - pjarc = jarc->append( pjarc ); - - jarc = new(arcpool) Arc( arc_left, 0 ); - arctessellator.bezier( jarc, smin, smin, tmax, tmin ); - ret->addarc( jarc ); - jarc->append( pjarc ); - - assert( jarc->check() != 0 ); - return ret; -} - -/*--------------------------------------------------------------------------- - * Subdivider - construct a subdivider - *--------------------------------------------------------------------------- - */ - -Subdivider::Subdivider( Renderhints& r, Backend& b ) - : slicer( b ), - arctessellator( trimvertexpool, pwlarcpool ), - arcpool( sizeof( Arc), 1, "arcpool" ), - bezierarcpool( sizeof( BezierArc ), 1, "Bezarcpool" ), - pwlarcpool( sizeof( PwlArc ), 1, "Pwlarcpool" ), - renderhints( r ), - backend( b ) -{ -} - -void -Subdivider::setJumpbuffer( JumpBuffer *j ) -{ - jumpbuffer = j; -} - -/*--------------------------------------------------------------------------- - * clear - reset all state after possible error condition - *--------------------------------------------------------------------------- - */ - -void -Subdivider::clear( void ) -{ - trimvertexpool.clear(); - arcpool.clear(); - pwlarcpool.clear(); - bezierarcpool.clear(); -} - -/*--------------------------------------------------------------------------- - * ~Subdivider - destroy a subdivider - *--------------------------------------------------------------------------- - */ - -Subdivider::~Subdivider( void ) -{ -} - -/*--------------------------------------------------------------------------- - * addArc - add a bezier arc to a trim loop and to a bin - *--------------------------------------------------------------------------- - */ -void -Subdivider::addArc( REAL *cpts, Quilt *quilt, long _nuid ) -{ - BezierArc *bezierArc = new(bezierarcpool) BezierArc; - Arc *jarc = new(arcpool) Arc( arc_none, _nuid ); - jarc->pwlArc = 0; - jarc->bezierArc = bezierArc; - bezierArc->order = quilt->qspec->order; - bezierArc->stride = quilt->qspec->stride; - bezierArc->mapdesc = quilt->mapdesc; - bezierArc->cpts = cpts; - initialbin.addarc( jarc ); - pjarc = jarc->append( pjarc ); -} - -/*--------------------------------------------------------------------------- - * addArc - add a pwl arc to a trim loop and to a bin - *--------------------------------------------------------------------------- - */ - -void -Subdivider::addArc( int npts, TrimVertex *pts, long _nuid ) -{ - Arc *jarc = new(arcpool) Arc( arc_none, _nuid ); - jarc->pwlArc = new(pwlarcpool) PwlArc( npts, pts ); - initialbin.addarc( jarc ); - pjarc = jarc->append( pjarc ); -} - -void -Subdivider::beginQuilts( void ) -{ - qlist = 0; -} - -void -Subdivider::addQuilt( Quilt *quilt ) -{ - quilt->next = qlist; - qlist = quilt; -} - -/*--------------------------------------------------------------------------- - * drawSurfaces - main entry point for surface tessellation - *--------------------------------------------------------------------------- - */ - -void -Subdivider::drawSurfaces( long nuid ) -{ - renderhints.init( ); - - if (qlist == NULL) - { - //initialbin could be nonempty due to some errors - freejarcs(initialbin); - return; - } - - for( Quilt *q = qlist; q; q = q->next ) { - if( q->isCulled( ) == CULL_TRIVIAL_REJECT ) { - freejarcs( initialbin ); - return; - } - } - - - REAL from[2], to[2]; - qlist->getRange( from, to, spbrkpts, tpbrkpts ); -#ifdef OPTIMIZE_UNTRIMED_CASE - //perform optimization only when the samplng method is - //DOMAIN_DISTANCE and the display methdo is either - //fill or outline_polygon. - int optimize = (is_domain_distance_sampling && (renderhints.display_method != N_OUTLINE_PATCH)); -#endif - - if( ! initialbin.isnonempty() ) { -#ifdef OPTIMIZE_UNTRIMED_CASE - if(! optimize ) - { - - makeBorderTrim( from, to ); - } -#else - makeBorderTrim( from, to ); -#endif - } else { - REAL rate[2]; - qlist->findRates( spbrkpts, tpbrkpts, rate ); - - if( decompose( initialbin, min(rate[0], rate[1]) ) ) - mylongjmp( jumpbuffer, 31 ); - } - - backend.bgnsurf( renderhints.wiretris, renderhints.wirequads, nuid ); - -#ifdef PARTITION_TEST - if( initialbin.isnonempty() && spbrkpts.end-2 == spbrkpts.start && - tpbrkpts.end-2 == tpbrkpts.start) -{ - for(int i=spbrkpts.start; i<spbrkpts.end-1; i++){ - for(int j=tpbrkpts.start; j<tpbrkpts.end-1; j++){ - Real pta[2], ptb[2]; - pta[0] = spbrkpts.pts[i]; - ptb[0] = spbrkpts.pts[i+1]; - pta[1] = tpbrkpts.pts[j]; - ptb[1] = tpbrkpts.pts[j+1]; - qlist->downloadAll(pta, ptb, backend); - - directedLine *poly; - - { - - poly = bin_to_DLineLoops(initialbin); - - poly=poly->deleteDegenerateLinesAllPolygons(); - - sampledLine* retSampledLines; -//printf("before MC_partition\n"); - poly = MC_partitionY(poly, &retSampledLines); -//printf("after MC_partition\n"); - - } - - - { - primStream pStream(5000,5000); - directedLine* temp; - - for(temp=poly; temp != NULL; temp=temp->getNextPolygon()) - - monoTriangulation(temp, &pStream); - - slicer.evalStream(&pStream); - - } - //need to clean up space - } - } - freejarcs( initialbin ); - backend.endsurf(); - return; - - /* - printf("num_polygons=%i\n", poly->numPolygons()); - printf("num_edges=%i\n", poly->numEdgesAllPolygons()); - poly->writeAllPolygons("zloutputFile"); - return; - { - primStream pStream(20,20); - for(directedLine* tempD = poly; tempD != NULL; tempD = tempD->getNextPolygon()) - monoTriangulation(tempD, &pStream); - } - return; - */ -} -#endif //PARTITION_TEST - - -#ifdef OPTIMIZE_UNTRIMED_CASE - if( (!initialbin.isnonempty()) && optimize ) - { - int i,j; - int num_u_steps; - int num_v_steps; - for(i=spbrkpts.start; i<spbrkpts.end-1; i++){ - for(j=tpbrkpts.start; j<tpbrkpts.end-1; j++){ - Real pta[2], ptb[2]; - pta[0] = spbrkpts.pts[i]; - ptb[0] = spbrkpts.pts[i+1]; - pta[1] = tpbrkpts.pts[j]; - ptb[1] = tpbrkpts.pts[j+1]; - qlist->downloadAll(pta, ptb, backend); - - num_u_steps = (int) (domain_distance_u_rate * (ptb[0]-pta[0])); - num_v_steps = (int) (domain_distance_v_rate * (ptb[1]-pta[1])); - - if(num_u_steps <= 0) num_u_steps = 1; - if(num_v_steps <= 0) num_v_steps = 1; - - backend.surfgrid(pta[0], ptb[0], num_u_steps, - ptb[1], pta[1], num_v_steps); - backend.surfmesh(0,0,num_u_steps,num_v_steps); - - - - continue; - /* the following is left for reference purpose, don't delete - { - Bin* tempSource; - Patchlist patchlist(qlist, pta, ptb); - patchlist.getstepsize(); - - tempSource=makePatchBoundary(pta, ptb); - - tessellation(*tempSource, patchlist); - - render(*tempSource); - delete tempSource; - } - */ - } - } - } - else - subdivideInS( initialbin ); -#else - - subdivideInS( initialbin ); -#endif - - backend.endsurf(); - -} - -void -Subdivider::subdivideInS( Bin& source ) -{ - if( renderhints.display_method == N_OUTLINE_PARAM ) { - outline( source ); - freejarcs( source ); - } else { - setArcTypeBezier(); - setNonDegenerate(); - splitInS( source, spbrkpts.start, spbrkpts.end ); - } -} - - -/*--------------------------------------------------------------------------- - * splitInS - split a patch and a bin by an isoparametric line - *--------------------------------------------------------------------------- - */ - -void -Subdivider::splitInS( Bin& source, int start, int end ) -{ - if( source.isnonempty() ) { - if( start != end ) { - int i = start + (end - start) / 2; - Bin left, right; - split( source, left, right, 0, spbrkpts.pts[i] ); - splitInS( left, start, i ); - splitInS( right, i+1, end ); - } else { - if( start == spbrkpts.start || start == spbrkpts.end ) { - freejarcs( source ); - } else if( renderhints.display_method == N_OUTLINE_PARAM_S ) { - outline( source ); - freejarcs( source ); - } else { - setArcTypeBezier(); - setNonDegenerate(); - s_index = start; - splitInT( source, tpbrkpts.start, tpbrkpts.end ); - } - } - } -} - -/*--------------------------------------------------------------------------- - * splitInT - split a patch and a bin by an isoparametric line - *--------------------------------------------------------------------------- - */ - -void -Subdivider::splitInT( Bin& source, int start, int end ) -{ - if( source.isnonempty() ) { - if( start != end ) { - int i = start + (end - start) / 2; - Bin left, right; - split( source, left, right, 1, tpbrkpts.pts[i] ); - splitInT( left, start, i ); - splitInT( right, i+1, end ); - } else { - if( start == tpbrkpts.start || start == tpbrkpts.end ) { - freejarcs( source ); - } else if( renderhints.display_method == N_OUTLINE_PARAM_ST ) { - outline( source ); - freejarcs( source ); - } else { - t_index = start; - setArcTypeBezier(); - setDegenerate(); - - REAL pta[2], ptb[2]; - pta[0] = spbrkpts.pts[s_index-1]; - pta[1] = tpbrkpts.pts[t_index-1]; - - ptb[0] = spbrkpts.pts[s_index]; - ptb[1] = tpbrkpts.pts[t_index]; - qlist->downloadAll( pta, ptb, backend ); - - Patchlist patchlist( qlist, pta, ptb ); -/* -printf("-------samplingSplit-----\n"); -source.show("samplingSplit source"); -*/ - samplingSplit( source, patchlist, renderhints.maxsubdivisions, 0 ); - setNonDegenerate(); - setArcTypeBezier(); - } - } - } -} - -/*-------------------------------------------------------------------------- - * samplingSplit - recursively subdivide patch, cull check each subpatch - *-------------------------------------------------------------------------- - */ - -void -Subdivider::samplingSplit( - Bin& source, - Patchlist& patchlist, - int subdivisions, - int param ) -{ - if( ! source.isnonempty() ) return; - - if( patchlist.cullCheck() == CULL_TRIVIAL_REJECT ) { - freejarcs( source ); - return; - } - - patchlist.getstepsize(); - - if( renderhints.display_method == N_OUTLINE_PATCH ) { - tessellation( source, patchlist ); - outline( source ); - freejarcs( source ); - return; - } - - //patchlist.clamp(); - - tessellation( source, patchlist ); - - if( patchlist.needsSamplingSubdivision() && (subdivisions > 0) ) { - if( ! patchlist.needsSubdivision( 0 ) ) - param = 1; - else if( ! patchlist.needsSubdivision( 1 ) ) - param = 0; - else - param = 1 - param; - - Bin left, right; - REAL mid = ( patchlist.pspec[param].range[0] + - patchlist.pspec[param].range[1] ) * 0.5; - split( source, left, right, param, mid ); - Patchlist subpatchlist( patchlist, param, mid ); - samplingSplit( left, subpatchlist, subdivisions-1, param ); - samplingSplit( right, patchlist, subdivisions-1, param ); - } else { - setArcTypePwl(); - setDegenerate(); - nonSamplingSplit( source, patchlist, subdivisions, param ); - setDegenerate(); - setArcTypeBezier(); - } -} - -void -Subdivider::nonSamplingSplit( - Bin& source, - Patchlist& patchlist, - int subdivisions, - int param ) -{ - if( patchlist.needsNonSamplingSubdivision() && (subdivisions > 0) ) { - param = 1 - param; - - Bin left, right; - REAL mid = ( patchlist.pspec[param].range[0] + - patchlist.pspec[param].range[1] ) * 0.5; - split( source, left, right, param, mid ); - Patchlist subpatchlist( patchlist, param, mid ); - if( left.isnonempty() ) { - if( subpatchlist.cullCheck() == CULL_TRIVIAL_REJECT ) - freejarcs( left ); - else - nonSamplingSplit( left, subpatchlist, subdivisions-1, param ); - } - if( right.isnonempty() ) { - if( patchlist.cullCheck() == CULL_TRIVIAL_REJECT ) - freejarcs( right ); - else - nonSamplingSplit( right, patchlist, subdivisions-1, param ); - } - - } else { - // make bbox calls - patchlist.bbox(); - backend.patch( patchlist.pspec[0].range[0], patchlist.pspec[0].range[1], - patchlist.pspec[1].range[0], patchlist.pspec[1].range[1] ); - - if( renderhints.display_method == N_OUTLINE_SUBDIV ) { - outline( source ); - freejarcs( source ); - } else { - setArcTypePwl(); - setDegenerate(); - findIrregularS( source ); - monosplitInS( source, smbrkpts.start, smbrkpts.end ); - } - } -} - -/*-------------------------------------------------------------------------- - * tessellation - set tessellation of interior and boundary of patch - *-------------------------------------------------------------------------- - */ - -void -Subdivider::tessellation( Bin& bin, Patchlist &patchlist ) -{ - // tessellate unsampled trim curves - tessellate( bin, patchlist.pspec[1].sidestep[1], patchlist.pspec[0].sidestep[1], - patchlist.pspec[1].sidestep[0], patchlist.pspec[0].sidestep[0] ); - - // set interior sampling rates - slicer.setstriptessellation( patchlist.pspec[0].stepsize, patchlist.pspec[1].stepsize ); - - //added by zl: set the order which will be used in slicer.c++ - slicer.set_ulinear( (patchlist.get_uorder() == 2)); - slicer.set_vlinear( (patchlist.get_vorder() == 2)); - - // set boundary sampling rates - stepsizes[0] = patchlist.pspec[1].stepsize; - stepsizes[1] = patchlist.pspec[0].stepsize; - stepsizes[2] = patchlist.pspec[1].stepsize; - stepsizes[3] = patchlist.pspec[0].stepsize; -} - -/*--------------------------------------------------------------------------- - * monosplitInS - split a patch and a bin by an isoparametric line - *--------------------------------------------------------------------------- - */ - -void -Subdivider::monosplitInS( Bin& source, int start, int end ) -{ - if( source.isnonempty() ) { - if( start != end ) { - int i = start + (end - start) / 2; - Bin left, right; - split( source, left, right, 0, smbrkpts.pts[i] ); - monosplitInS( left, start, i ); - monosplitInS( right, i+1, end ); - } else { - if( renderhints.display_method == N_OUTLINE_SUBDIV_S ) { - outline( source ); - freejarcs( source ); - } else { - setArcTypePwl(); - setDegenerate(); - findIrregularT( source ); - monosplitInT( source, tmbrkpts.start, tmbrkpts.end ); - } - } - } -} - -/*--------------------------------------------------------------------------- - * monosplitInT - split a patch and a bin by an isoparametric line - *--------------------------------------------------------------------------- - */ - -void -Subdivider::monosplitInT( Bin& source, int start, int end ) -{ - if( source.isnonempty() ) { - if( start != end ) { - int i = start + (end - start) / 2; - Bin left, right; - split( source, left, right, 1, tmbrkpts.pts[i] ); - monosplitInT( left, start, i ); - monosplitInT( right, i+1, end ); - } else { - if( renderhints.display_method == N_OUTLINE_SUBDIV_ST ) { - outline( source ); - freejarcs( source ); - } else { -/* -printf("*******render\n"); -source.show("source\n"); -*/ - render( source ); - freejarcs( source ); - } - } - } -} - - -/*---------------------------------------------------------------------------- - * findIrregularS - determine points of non-monotonicity is s direction - *---------------------------------------------------------------------------- - */ - -void -Subdivider::findIrregularS( Bin& bin ) -{ - assert( bin.firstarc()->check() != 0 ); - - smbrkpts.grow( bin.numarcs() ); - - for( Arc_ptr jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - REAL *a = jarc->prev->tail(); - REAL *b = jarc->tail(); - REAL *c = jarc->head(); - - if( b[1] == a[1] && b[1] == c[1] ) continue; - - //corrected code - if((b[1]<=a[1] && b[1] <= c[1]) || - (b[1]>=a[1] && b[1] >= c[1])) - { - //each arc (jarc, jarc->prev, jarc->next) is a - //monotone arc consisting of multiple line segements. - //it may happen that jarc->prev and jarc->next are the same, - //that is, jarc->prev and jarc form a closed loop. - //In such case, a and c will be the same. - if(a[0]==c[0] && a[1] == c[1]) - { - if(jarc->pwlArc->npts >2) - { - c = jarc->pwlArc->pts[jarc->pwlArc->npts-2].param; - } - else - { - assert(jarc->prev->pwlArc->npts>2); - a = jarc->prev->pwlArc->pts[jarc->prev->pwlArc->npts-2].param; - } - - } - if(area(a,b,c) < 0) - { - smbrkpts.add(b[0]); - } - - } - - /* old code, - if( b[1] <= a[1] && b[1] <= c[1] ) { - if( ! ccwTurn_tr( jarc->prev, jarc ) ) - smbrkpts.add( b[0] ); - } else if( b[1] >= a[1] && b[1] >= c[1] ) { - if( ! ccwTurn_tl( jarc->prev, jarc ) ) - smbrkpts.add( b[0] ); - } - */ - - } - - smbrkpts.filter(); -} - -/*---------------------------------------------------------------------------- - * findIrregularT - determine points of non-monotonicity in t direction - * where one arc is parallel to the s axis. - *---------------------------------------------------------------------------- - */ - -void -Subdivider::findIrregularT( Bin& bin ) -{ - assert( bin.firstarc()->check() != 0 ); - - tmbrkpts.grow( bin.numarcs() ); - - for( Arc_ptr jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - REAL *a = jarc->prev->tail(); - REAL *b = jarc->tail(); - REAL *c = jarc->head(); - - if( b[0] == a[0] && b[0] == c[0] ) continue; - - if( b[0] <= a[0] && b[0] <= c[0] ) { - if( a[1] != b[1] && b[1] != c[1] ) continue; - if( ! ccwTurn_sr( jarc->prev, jarc ) ) - tmbrkpts.add( b[1] ); - } else if ( b[0] >= a[0] && b[0] >= c[0] ) { - if( a[1] != b[1] && b[1] != c[1] ) continue; - if( ! ccwTurn_sl( jarc->prev, jarc ) ) - tmbrkpts.add( b[1] ); - } - } - tmbrkpts.filter( ); -} - -/*----------------------------------------------------------------------------- - * makeBorderTrim - if no user input trimming data then create - * a trimming curve around the boundaries of the Quilt. The curve consists of - * four Jordan arcs, one for each side of the Quilt, connected, of course, - * head to tail. - *----------------------------------------------------------------------------- - */ - -void -Subdivider::makeBorderTrim( const REAL *from, const REAL *to ) -{ - REAL smin = from[0]; - REAL smax = to[0]; - REAL tmin = from[1]; - REAL tmax = to[1]; - - pjarc = 0; - - Arc_ptr jarc = new(arcpool) Arc( arc_bottom, 0 ); - arctessellator.bezier( jarc, smin, smax, tmin, tmin ); - initialbin.addarc( jarc ); - pjarc = jarc->append( pjarc ); - - jarc = new(arcpool) Arc( arc_right, 0 ); - arctessellator.bezier( jarc, smax, smax, tmin, tmax ); - initialbin.addarc( jarc ); - pjarc = jarc->append( pjarc ); - - jarc = new(arcpool) Arc( arc_top, 0 ); - arctessellator.bezier( jarc, smax, smin, tmax, tmax ); - initialbin.addarc( jarc ); - pjarc = jarc->append( pjarc ); - - jarc = new(arcpool) Arc( arc_left, 0 ); - arctessellator.bezier( jarc, smin, smin, tmax, tmin ); - initialbin.addarc( jarc ); - jarc->append( pjarc ); - - assert( jarc->check() != 0 ); -} - -/*---------------------------------------------------------------------------- - * render - renders all monotone regions in a bin and frees the bin - *---------------------------------------------------------------------------- - */ - -void -Subdivider::render( Bin& bin ) -{ - bin.markall(); - -#ifdef N_ISOLINE_S - slicer.setisolines( ( renderhints.display_method == N_ISOLINE_S ) ? 1 : 0 ); -#else - slicer.setisolines( 0 ); -#endif - - for( Arc_ptr jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - if( jarc->ismarked() ) { - assert( jarc->check( ) != 0 ); - Arc_ptr jarchead = jarc; - do { - jarc->clearmark(); - jarc = jarc->next; - } while (jarc != jarchead); - slicer.slice( jarc ); - } - } -} - -/*--------------------------------------------------------------------------- - * outline - render the trimmed patch by outlining the boundary - *--------------------------------------------------------------------------- - */ - -void -Subdivider::outline( Bin& bin ) -{ - bin.markall(); - for( Arc_ptr jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - if( jarc->ismarked() ) { - assert( jarc->check( ) != 0 ); - Arc_ptr jarchead = jarc; - do { - slicer.outline( jarc ); - jarc->clearmark(); - jarc = jarc->prev; - } while (jarc != jarchead); - } - } -} - -/*--------------------------------------------------------------------------- - * freejarcs - free all arcs in a bin - *--------------------------------------------------------------------------- - */ - -void -Subdivider::freejarcs( Bin& bin ) -{ - bin.adopt(); /* XXX - should not be necessary */ - - Arc_ptr jarc; - while( (jarc = bin.removearc()) != NULL ) { - if( jarc->pwlArc ) jarc->pwlArc->deleteMe( pwlarcpool ); jarc->pwlArc = 0; - if( jarc->bezierArc) jarc->bezierArc->deleteMe( bezierarcpool ); jarc->bezierArc = 0; - jarc->deleteMe( arcpool ); - } -} - -/*---------------------------------------------------------------------------- - * tessellate - tessellate all Bezier arcs in a bin - * 1) only accepts linear Bezier arcs as input - * 2) the Bezier arcs are stored in the pwlArc structure - * 3) only vertical or horizontal lines work - * -- should - * 1) represent Bezier arcs in BezierArc structure - * (this requires a multitude of changes to the code) - * 2) accept high degree Bezier arcs (hard) - * 3) map the curve onto the surface to determine tessellation - * 4) work for curves of arbitrary geometry - *---------------------------------------------------------------------------- - */ - - -void -Subdivider::tessellate( Bin& bin, REAL rrate, REAL trate, REAL lrate, REAL brate ) -{ - for( Arc_ptr jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - if( jarc->isbezier( ) ) { - assert( jarc->pwlArc->npts == 2 ); - 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]; - - jarc->pwlArc->deleteMe( pwlarcpool ); jarc->pwlArc = 0; - - switch( jarc->getside() ) { - case arc_left: - assert( s1 == s2 ); - arctessellator.pwl_left( jarc, s1, t1, t2, lrate ); - break; - case arc_right: - assert( s1 == s2 ); - arctessellator.pwl_right( jarc, s1, t1, t2, rrate ); - break; - case arc_top: - assert( t1 == t2 ); - arctessellator.pwl_top( jarc, t1, s1, s2, trate ); - break; - case arc_bottom: - assert( t1 == t2 ); - arctessellator.pwl_bottom( jarc, t1, s1, s2, brate ); - break; - case arc_none: - (void) abort(); - break; - } - assert( ! jarc->isbezier() ); - assert( jarc->check() != 0 ); - } - } -} diff --git a/src/glu/sgi/libnurbs/internals/subdivider.h b/src/glu/sgi/libnurbs/internals/subdivider.h deleted file mode 100644 index 4d539518186..00000000000 --- a/src/glu/sgi/libnurbs/internals/subdivider.h +++ /dev/null @@ -1,200 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * subdivider.h - * - */ - -#ifndef __glusubdivider_h_ -#define __glusubdivider_h_ - -#include "mysetjmp.h" -#include "bin.h" -#include "flist.h" -#include "slicer.h" -#include "arctess.h" -#include "trimvertex.h" -#include "trimvertpool.h" - -class Arc; -class Pool; -class Renderhints; -class Quilt; -class Patchlist; -class Curvelist; -struct JumpBuffer; - -class Subdivider { -public: - Subdivider( Renderhints&, Backend& ); - ~Subdivider( void ); - void clear( void ); - - void beginTrims( void ) {} - void beginLoop( void ); - void addArc( REAL *, Quilt *, long ); - void addArc( int, TrimVertex *, long ); - void endLoop( void ) {} - void endTrims( void ) {} - - void beginQuilts( void ); - void addQuilt( Quilt * ); - void endQuilts( void ) {} - - void drawCurves( void ); - void drawSurfaces( long ); - - int ccwTurn_sl( Arc_ptr, Arc_ptr ); - int ccwTurn_sr( Arc_ptr , Arc_ptr ); - int ccwTurn_tl( Arc_ptr , Arc_ptr ); - int ccwTurn_tr( Arc_ptr , Arc_ptr ); - - void setJumpbuffer( JumpBuffer * ); - - void set_domain_distance_u_rate(REAL u_rate) - { - domain_distance_u_rate = u_rate; - } - void set_domain_distance_v_rate(REAL v_rate) - { - domain_distance_v_rate = v_rate; - } - void set_is_domain_distance_sampling(int flag) - { - is_domain_distance_sampling = flag; - } - -private: - void classify_headonleft_s( Bin &, Bin &, Bin &, REAL ); - void classify_tailonleft_s( Bin &, Bin &, Bin &, REAL ); - void classify_headonright_s( Bin &, Bin &, Bin &, REAL ); - void classify_tailonright_s( Bin &, Bin &, Bin &, REAL ); - void classify_headonleft_t( Bin &, Bin &, Bin &, REAL ); - void classify_tailonleft_t( Bin &, Bin &, Bin &, REAL ); - void classify_headonright_t( Bin &, Bin &, Bin &, REAL ); - void classify_tailonright_t( Bin &, Bin &, Bin &, REAL ); - - enum dir { down, same, up, none }; - void tessellate( Arc_ptr, REAL ); - void monotonize( Arc_ptr , Bin & ); - int isMonotone( Arc_ptr ); - int decompose( Bin &, REAL ); - - - Slicer slicer; - ArcTessellator arctessellator; - Pool arcpool; - Pool bezierarcpool; - Pool pwlarcpool; - TrimVertexPool trimvertexpool; - - JumpBuffer* jumpbuffer; - Renderhints& renderhints; - Backend& backend; - - Bin initialbin; - Arc_ptr pjarc; - int s_index; - int t_index; - Quilt * qlist; - Flist spbrkpts; - Flist tpbrkpts; - Flist smbrkpts; - Flist tmbrkpts; - REAL stepsizes[4]; - int showDegenerate; - int isArcTypeBezier; - - void samplingSplit( Curvelist&, int ); - - void subdivideInS( Bin& ); - void splitInS( Bin&, int, int ); - void splitInT( Bin&, int, int ); - void samplingSplit( Bin&, Patchlist&, int, int ); - void nonSamplingSplit( Bin&, Patchlist&, int, int ); - void tessellation( Bin&, Patchlist& ); - void monosplitInS( Bin&, int, int ); - void monosplitInT( Bin&, int, int ); - - void outline( Bin & ); - void freejarcs( Bin & ); - void render( Bin & ); - void split( Bin &, Bin &, Bin &, int, REAL ); - void tessellate( Bin &, REAL, REAL, REAL, REAL ); - - inline void setDegenerate( void ) { showDegenerate = 1; } - inline void setNonDegenerate( void ) { showDegenerate = 0; } - inline int showingDegenerate( void ) { return showDegenerate; } - inline void setArcTypeBezier( void ) { isArcTypeBezier = 1; } - inline void setArcTypePwl( void ) { isArcTypeBezier = 0; } - inline int isBezierArcType( void ) { return isArcTypeBezier; } - - void makeBorderTrim( const REAL *, const REAL * ); - void split( Bin &, int, const REAL *, int, int ); - void partition( Bin &, Bin &, Bin &, Bin &, Bin &, int, REAL ); - void findIrregularS( Bin & ); - void findIrregularT( Bin & ); - - - inline int bbox( TrimVertex *, TrimVertex *, TrimVertex *, int ); - static int bbox( REAL, REAL, REAL, REAL, REAL, REAL ); - static int ccw( TrimVertex *, TrimVertex *, TrimVertex * ); - void join_s( Bin &, Bin &, Arc_ptr, Arc_ptr ); - void join_t( Bin &, Bin &, Arc_ptr , Arc_ptr ); - int arc_split( Arc_ptr , int, REAL, int ); - void check_s( Arc_ptr , Arc_ptr ); - void check_t( Arc_ptr , Arc_ptr ); - inline void link( Arc_ptr , Arc_ptr , Arc_ptr , Arc_ptr ); - inline void simple_link( Arc_ptr , Arc_ptr ); - - Bin* makePatchBoundary( const REAL *from, const REAL *to ); - - /*in domain distance method, the tessellation is controled by two numbers: - *GLU_U_STEP: number of u-segments per unit u length of domain - *GLU_V_STEP: number of v-segments per unit v length of domain - *These two numbers are normally stored in mapdesc->maxs(t)rate. - *I (ZL) put these two numbers here so that I can optimize the untrimmed - *case in the case of domain distance sampling. - *These two numbers are set by set_domain_distance_u_rate() and ..._v_..(). - */ - REAL domain_distance_u_rate; - REAL domain_distance_v_rate; - int is_domain_distance_sampling; -}; - -inline void -Subdivider::beginLoop( void ) -{ - pjarc = 0; -} - - -#endif /* __glusubdivider_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/tobezier.cc b/src/glu/sgi/libnurbs/internals/tobezier.cc deleted file mode 100644 index 531f26bc783..00000000000 --- a/src/glu/sgi/libnurbs/internals/tobezier.cc +++ /dev/null @@ -1,687 +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. -*/ - -/* - * tobezier.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "mystring.h" -#include "quilt.h" -#include "knotvector.h" - -/* local type definitions */ -struct Breakpt { /* breakpoints */ - Knot value; /* value */ - int multi; /* multiplicity */ - int def; /* deficit */ -}; - -struct Knotspec { /* knotvector format */ - long order; /* order of spline */ - Knot_ptr inkbegin; /* input knot sequence */ - Knot_ptr inkend; /* location after last knot */ - Knot_ptr outkbegin; /* in-process knot subsequence */ - Knot_ptr outkend; /* location after last knot */ - Knot_ptr kleft; /* */ - Knot_ptr kright; /* */ - Knot_ptr kfirst; /* */ - Knot_ptr klast; /* */ - Knot_ptr sbegin; /* conversion factor values */ - Breakpt * bbegin; /* in-process breakpoints */ - Breakpt * bend; /* last breakpoint */ - int ncoords; /* coordinates per control point */ - int prestride; /* stride between input points */ - int poststride; /* stride between output points */ - int preoffset; /* scaled point offset */ - int postoffset; /* scaled point offset */ - int prewidth; /* width of dimension */ - int postwidth; /* width of dimension */ - int istransformed; /* was dimension transformed */ - Knotspec * next; /* next knotspec */ - Knotspec * kspectotrans; /* knotspec in transformation direction */ - - Knotspec( void ); - ~Knotspec( void ); - void factors( void ); - void insert( REAL * ); - void preselect(); - void select( void ); - void copy( INREAL *, REAL * ); - void breakpoints( void ); - void knots( void ); - void transform( REAL * ); - void showpts( REAL * ); - - void pt_io_copy( REAL *, INREAL * ); - void pt_oo_copy( REAL *, REAL * ); - void pt_oo_sum( REAL*, REAL*, REAL*, Knot, Knot ); -}; - -struct Splinespec { /* a non-uniform tensor element */ - Splinespec( int ); - ~Splinespec(void); - Knotspec *kspec; /* format of each param. dir. */ - int dim; /* domain dimension */ - REAL * outcpts; /* Bezier control points */ - - void kspecinit( Knotvector & ); - void kspecinit( Knotvector &, Knotvector & ); - void select( void ); - void layout( long ); - void setupquilt( Quilt_ptr ); - void copy( INREAL * ); - void transform( void ); -}; - -/*----------------------------------------------------------------------------- - * Quilt::toBezier - convert from NURBS to rational Bezier - *----------------------------------------------------------------------------- - */ - -void -Quilt::toBezier( - Knotvector& knotvector, /* a knot vector */ - INREAL *ctlpts, /* input contol points */ - long ncoords ) /* number of coordinates per control point */ -{ - Splinespec spline( 1 ); - spline.kspecinit( knotvector ); - spline.select(); - spline.layout( ncoords ); - spline.setupquilt( this ); - spline.copy( ctlpts ); - spline.transform(); -} - -void -Quilt::toBezier( - Knotvector& sknotvector, /* a knot vector */ - Knotvector& tknotvector, /* a knot vector */ - INREAL *ctlpts, /* input contol points */ - long ncoords ) /* number of coordinates per control point */ -{ - Splinespec spline( 2 ); - spline.kspecinit( sknotvector, tknotvector ); - spline.select(); - spline.layout( ncoords ); - spline.setupquilt( this ); - spline.copy( ctlpts ); - spline.transform(); -} -Splinespec::Splinespec( int dimen ) -{ - dim = dimen; -} - -Splinespec::~Splinespec( void ) -{ - /* Note: do NOT delete 'outcpts' here since its address (not contents) - * is copied in 'cpts' in this file in function Splinespec::setupquilt(). - * This block of memory will eventually be deleted in file quilt.c++ in - * function Quilt::deleteMe() through 'cpts' so do NOT delete it here! - */ - Knotspec *ktrav= kspec; //start at beginning of list - while (ktrav != 0) { //any items to delete? - Knotspec *deleteThis= ktrav; //remember to delete this - ktrav= ktrav->next; //go to next item if any - delete deleteThis; //delete it - } -} /* ~Splinespec() */ - -/*----------------------------------------------------------------------------- - * Splinespec::kspecinit - initialize Splinespec structure - * - * Client: Quilt::toBezier - *----------------------------------------------------------------------------- - */ - -void -Splinespec::kspecinit( Knotvector& knotvector ) -{ - kspec = new Knotspec; - kspec->inkbegin = knotvector.knotlist; - kspec->inkend = knotvector.knotlist + knotvector.knotcount; - kspec->prestride = (int) knotvector.stride; - kspec->order = knotvector.order; - kspec->next = NULL; -} - -void -Splinespec::kspecinit( Knotvector& sknotvector, Knotvector& tknotvector ) -{ - kspec = new Knotspec; - Knotspec *tkspec = new Knotspec; - - kspec->inkbegin = sknotvector.knotlist; - kspec->inkend = sknotvector.knotlist + sknotvector.knotcount; - kspec->prestride = (int) sknotvector.stride; - kspec->order = sknotvector.order; - kspec->next = tkspec; - - tkspec->inkbegin = tknotvector.knotlist; - tkspec->inkend = tknotvector.knotlist + tknotvector.knotcount; - tkspec->prestride = (int) tknotvector.stride; - tkspec->order = tknotvector.order; - tkspec->next = NULL; -} - - -/*----------------------------------------------------------------------------- - * Splinespec::select - select the subsegments to copy - * - * Client: gl_quilt_to_bezier - *----------------------------------------------------------------------------- - */ - -void -Splinespec::select( ) -{ - for( Knotspec *knotspec = kspec; knotspec; knotspec = knotspec->next ) { - knotspec->preselect(); - knotspec->select(); - } -} - -/*----------------------------------------------------------------------------- - * Splinespec::layout - - * - * Client: gl_quilt_to_bezier - *----------------------------------------------------------------------------- - */ - -void -Splinespec::layout( long ncoords ) -{ - - long stride = ncoords; - for( Knotspec *knotspec = kspec; knotspec; knotspec=knotspec->next ) { - knotspec->poststride = (int) stride; - stride *= ((knotspec->bend-knotspec->bbegin)*knotspec->order + knotspec->postoffset); - knotspec->preoffset *= knotspec->prestride; - knotspec->prewidth *= knotspec->poststride; - knotspec->postwidth *= knotspec->poststride; - knotspec->postoffset *= knotspec->poststride; - knotspec->ncoords = (int) ncoords; - } - outcpts = new REAL[stride]; - assert( outcpts != 0 ); -} - -/*----------------------------------------------------------------------------- - * Splinespec::copy - copy the control points of current subobject - * - * Client: gl_quilt_to_bezier - *----------------------------------------------------------------------------- - */ - -void -Splinespec::copy( INREAL *incpts ) -{ - kspec->copy( incpts, outcpts ); -} - -/*----------------------------------------------------------------------------- - * Splinespec::setupquilt - assign all quilt variables from knotspec - * - * Client: gl_quilt_to_bezier - *----------------------------------------------------------------------------- - */ - -void -Splinespec::setupquilt( Quilt_ptr quilt ) -{ - Quiltspec_ptr qspec = quilt->qspec; - quilt->eqspec = qspec + dim; - for( Knotspec *knotspec = kspec; knotspec; knotspec=knotspec->next, qspec++ ) { - qspec->stride = knotspec->poststride; - qspec->width = knotspec->bend - knotspec->bbegin; - qspec->order = (int) knotspec->order; - qspec->offset = knotspec->postoffset; - qspec->index = 0; - qspec->bdry[0] = (knotspec->kleft == knotspec->kfirst) ? 1 : 0; - qspec->bdry[1] = (knotspec->kright == knotspec->klast) ? 1 : 0; - qspec->breakpoints = new Knot[qspec->width+1]; - Knot_ptr k = qspec->breakpoints; - for( Breakpt *bk = knotspec->bbegin; bk <= knotspec->bend; bk++ ) - *(k++) = bk->value; - } - quilt->cpts = outcpts; - quilt->next = 0; -} - -/*----------------------------------------------------------------------------- - * Splinespec::transform - convert a spline to Bezier format - * - * Client: gl_quilt_to_bezier - *----------------------------------------------------------------------------- - */ - -void -Splinespec::transform( void ) -{ - Knotspec *knotspec; - for( knotspec = kspec; knotspec; knotspec=knotspec->next ) - knotspec->istransformed = 0; - - for( knotspec = kspec; knotspec; knotspec=knotspec->next ) { - for( Knotspec *kspec2 = kspec; kspec2; kspec2=kspec2->next ) - kspec2->kspectotrans = knotspec; - kspec->transform( outcpts ); - knotspec->istransformed = 1; - } -} - - -/*----------------------------------------------------------------------------- - * Knotspec::Knotspec - constuct a knot spec - *----------------------------------------------------------------------------- - */ - -Knotspec::Knotspec( void ) -{ - bbegin = 0; - sbegin = 0; - outkbegin = 0; -} - -/*----------------------------------------------------------------------------- - * Knotspec::copy - copy the control points along minor direction - * - * Client: Splinespec::copy - *----------------------------------------------------------------------------- - */ - -void -Knotspec::copy( INREAL *inpt, REAL *outpt ) -{ - inpt = (INREAL *) (((char *) inpt) + preoffset); - - if( next ) { - for( REAL *lpt=outpt+prewidth; outpt != lpt; outpt += poststride ) { - next->copy( inpt, outpt ); - inpt = (INREAL *) (((char *) inpt) + prestride); - } - } else { - for( REAL *lpt=outpt+prewidth; outpt != lpt; outpt += poststride ) { - pt_io_copy( outpt, inpt ); - inpt = (INREAL *) (((char *) inpt) + prestride); - } - } -} - -/*----------------------------------------------------------------------------- - * Knotspec::showpts - print out points before transformation - * - * Client: Knotspec::select - *----------------------------------------------------------------------------- - */ -void -Knotspec::showpts( REAL *outpt ) -{ - if( next ) { - for( REAL *lpt=outpt+prewidth; outpt != lpt; outpt += poststride ) - next->showpts( outpt ); - } else { - for( REAL *lpt=outpt+prewidth; outpt != lpt; outpt += poststride ) - _glu_dprintf( "show %g %g %g\n", outpt[0], outpt[1], outpt[2] ); - } -} - -/*----------------------------------------------------------------------------- - * Knotspec::factors - precompute scale factors - * - overwrites knot vector, actual new knot vector is NOT produced - * - * Client: Knotspec::select - *----------------------------------------------------------------------------- - */ - -void -Knotspec::factors( void ) -{ - Knot *mid = (outkend - 1) - order + bend->multi; - Knot_ptr fptr = sbegin; - - for( Breakpt *bpt = bend; bpt >= bbegin; bpt-- ) { - mid -= bpt->multi; // last knot less than knot to insert - int def = bpt->def - 1; // number of knots to insert - if( def <= 0 ) continue; - Knot kv = bpt->value; // knot to insert - - Knot *kf = (mid-def) + (order-1); - for( Knot *kl = kf + def; kl != kf; kl-- ) { - Knot *kh, *kt; - for( kt=kl, kh=mid; kt != kf; kh--, kt-- ) - *(fptr++) = (kv - *kh) / (*kt - *kh); - *kl = kv; - } - } -} - -/*----------------------------------------------------------------------------- - * Knotspec::insert - convert subobject in direction of kspec into Bezier - * - * Client: Knotspec::transform - *----------------------------------------------------------------------------- - */ - -void -Knotspec::insert( REAL *p ) -{ - Knot_ptr fptr = sbegin; - REAL *srcpt = p + prewidth - poststride; - REAL *dstpt = p + postwidth + postoffset - poststride; - Breakpt *bpt = bend; - - for( REAL *pend = srcpt - poststride*bpt->def; srcpt != pend; pend +=poststride ) { - REAL *p1 = srcpt; - for( REAL *p2 = srcpt-poststride; p2 != pend; p1 = p2, p2 -= poststride ) { - pt_oo_sum( p1, p1, p2, *fptr, 1.0-*fptr ); - fptr++; - } - } - - for( --bpt; bpt >= bbegin; bpt-- ) { - - for( int multi = bpt->multi; multi > 0; multi-- ) { - pt_oo_copy( dstpt, srcpt ); - dstpt -= poststride; - srcpt -= poststride; - } - - for( REAL *pend = srcpt - poststride*bpt->def; srcpt != pend; pend +=poststride, dstpt-=poststride ) { - pt_oo_copy( dstpt, srcpt ); - REAL *p1 = srcpt; - - for( REAL *p2 = srcpt-poststride; p2 != pend; p1=p2, p2 -= poststride ) { - pt_oo_sum( p1, p1, p2, *fptr, 1.0-*fptr ); - fptr++; - } - } - } -} - -/*----------------------------------------------------------------------------- - * Knotspec::preselect - initialize kspec for processing - * - * Client: Splinespec::select - *----------------------------------------------------------------------------- - */ - -void -Knotspec::preselect( void ) -{ - Knot kval; - - /* position klast after last knot of "last" breakpoint */ - for( klast = inkend - order, kval = *klast; klast != inkend; klast++ ) - if( ! identical( *klast, kval ) ) break; - - /* position kfirst after last knot of "first" breakpoint */ - for( kfirst = inkbegin+order-1, kval= *kfirst; kfirst != inkend; kfirst++ ) - if( ! identical( *kfirst, kval ) ) break; - - /* compute multiplicity of first breakpoint */ - Knot_ptr k; - for( k = kfirst - 1; k >= inkbegin; k-- ) - if( ! identical( kval, *k ) ) break; - k++; - - /* allocate space for breakpoints - - use worst case estimate on number of breakpoints */ - - bbegin = new Breakpt[(klast - kfirst)+1]; - /* record multiplicity and value of first breakpoint */ - bbegin->multi = kfirst - k; - bbegin->value = kval; - bend = bbegin; - - kleft = kright = kfirst; -} - - -/*----------------------------------------------------------------------------- - * Knotspec::select - Knotspec::select segments and precompute scale factors - * - * Client: Splinespec::select - *----------------------------------------------------------------------------- - */ - -void -Knotspec::select( void ) -{ - breakpoints(); - knots(); - factors(); - - preoffset = kleft - (inkbegin + order); - postwidth = (int)((bend - bbegin) * order); - prewidth = (int)((outkend - outkbegin) - order); - postoffset = (bbegin->def > 1) ? (bbegin->def-1) : 0; -} - -/*----------------------------------------------------------------------------- - * Knotspec::breakpoints - compute breakpoints for knotspec - * - * Client: Knotspec::select - *----------------------------------------------------------------------------- - */ - -void -Knotspec::breakpoints( void ) -{ - Breakpt *ubpt = bbegin; - Breakpt *ubend = bend; - long nfactors = 0; - - ubpt->value = ubend->value; - ubpt->multi = ubend->multi; - - kleft = kright; - - for( ; kright != klast; kright++ ) { - if ( identical(*kright,ubpt->value) ) { - (ubpt->multi)++; - } else { - ubpt->def = (int) (order - ubpt->multi); - nfactors += (ubpt->def * (ubpt->def - 1)) / 2; - (++ubpt)->value = *kright; - ubpt->multi = 1; - } - } - ubpt->def = (int) (order - ubpt->multi); - nfactors += (ubpt->def * (ubpt->def - 1)) / 2; - - bend = ubpt; - - if( nfactors ) { - sbegin = new Knot[nfactors]; - } else { - sbegin = NULL; - } -} - - -/*----------------------------------------------------------------------------- - * Knotspec::knots - copy relevant subsequence of knots into temporary area - * - * Client: Knotspec::select - *----------------------------------------------------------------------------- - */ - -void -Knotspec::knots( void ) -{ - Knot_ptr inkpt = kleft - order; - Knot_ptr inkend = kright + bend->def; - - /* allocate space for knots and factors */ - outkbegin = new Knot[inkend-inkpt]; - Knot_ptr outkpt; - for( outkpt = outkbegin; inkpt != inkend; inkpt++, outkpt++ ) - *outkpt = *inkpt; - - outkend = outkpt; -} - - -/*----------------------------------------------------------------------------- - * Knotspec::transform - convert a spline along a given direction - * - * Client: Splienspec::transform - *----------------------------------------------------------------------------- - */ - -void -Knotspec::transform( REAL *p ) -{ - if( next ) { - if( this == kspectotrans ) { - next->transform( p ); - } else { - if( istransformed ) { - p += postoffset; - for( REAL *pend = p + postwidth; p != pend; p += poststride ) - next->transform( p ); - } else { - REAL *pend = p + prewidth; - for( ; p != pend; p += poststride ) - next->transform( p ); - } - } - } else { - if( this == kspectotrans ) { - insert( p ); - } else { - if( istransformed ) { - p += postoffset; - for( REAL *pend = p + postwidth; p != pend; p += poststride ) - kspectotrans->insert( p ); - } else { - REAL *pend = p + prewidth; - for( ; p != pend; p += poststride ) - kspectotrans->insert( p ); - } - } - } -} - -/*----------------------------------------------------------------------------- - * Knotspec::~Knotspec - free space alocated for knotspec - *----------------------------------------------------------------------------- - */ - -Knotspec::~Knotspec( void ) -{ - if( bbegin ) delete[] bbegin; - if( sbegin ) delete[] sbegin; - if( outkbegin ) delete[] outkbegin; -} - - -/*----------------------------------------------------------------------------- - * pt_io_copy - make internal copy of input cntrl pt. of x coords - *----------------------------------------------------------------------------- - */ - -void -Knotspec::pt_io_copy( REAL *topt, INREAL *frompt ) -{ - switch( ncoords ) { - case 4: - topt[3] = (REAL) frompt[3]; - case 3: - topt[2] = (REAL) frompt[2]; - case 2: - topt[1] = (REAL) frompt[1]; - case 1: - topt[0] = (REAL) frompt[0]; - break; - default: { - for( int i = 0; i < ncoords; i++ ) - *topt++ = (REAL) *frompt++; - } - } -} - -/*----------------------------------------------------------------------------- - * pt_oo_copy - make internal copy of internal cntrl pt. of x coords - *----------------------------------------------------------------------------- - */ - -void -Knotspec::pt_oo_copy( REAL *topt, REAL *frompt ) -{ - switch( ncoords ) { - case 4: - topt[3] = frompt[3]; - case 3: - topt[2] = frompt[2]; - case 2: - topt[1] = frompt[1]; - case 1: - topt[0] = frompt[0]; - break; - default: - memcpy( topt, frompt, ncoords * sizeof( REAL ) ); - } -} - -/*----------------------------------------------------------------------------- - * pt_oo_sum - compute affine combination of internal cntrl pts - *----------------------------------------------------------------------------- - */ - -void -Knotspec::pt_oo_sum( REAL *x, REAL *y, REAL *z, Knot a, Knot b ) -{ - switch( ncoords ) { - case 4: - x[3] = a * y[3] + b * z[3]; - case 3: - x[2] = a * y[2] + b * z[2]; - case 2: - x[1] = a * y[1] + b * z[1]; - case 1: - x[0] = a * y[0] + b * z[0]; - break; - default: { - for( int i = 0; i < ncoords; i++ ) - *x++ = a * *y++ + b * *z++; - } - } -} diff --git a/src/glu/sgi/libnurbs/internals/trimline.cc b/src/glu/sgi/libnurbs/internals/trimline.cc deleted file mode 100644 index 61f34cd38a0..00000000000 --- a/src/glu/sgi/libnurbs/internals/trimline.cc +++ /dev/null @@ -1,223 +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. -*/ - -/* - * trimline.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "trimline.h" -#include "backend.h" - -Trimline::Trimline() -{ - size = 0; pts = 0; numverts = 0; - tinterp = &t; binterp = &b; -} - -Trimline::~Trimline() -{ - if( pts ) delete[] pts; -} - -void -Trimline::init( TrimVertex *v ) -{ - reset(); - grow(1); - append(v); -} - -inline void -Trimline::grow( long npts ) -{ - if( size < npts ) { - size = 2 * npts; - if( pts ) delete[] pts; - pts = new TrimVertex_p[size]; - } -} - -inline void -Trimline::append( TrimVertex *v ) -{ - assert( numverts != size ); - pts[numverts++] = v; -} - -void -Trimline::init( long npts, Arc_ptr jarc, long last ) -{ - jarcl.init( jarc, 0, last ); - grow( npts + 2 ); -} - -inline void -Trimline::swap() -{ - TrimVertex *tmp=tinterp; - tinterp=binterp; - binterp=tmp; -} - -void -Trimline::getNextPt() -{ - *binterp = *jarcl.getnextpt(); -} - -void -Trimline::getPrevPt() -{ - *binterp = *jarcl.getprevpt(); -} - -/*---------------------------------------------------------------------- - * getNextPts - make arrays of pointers to trim points on left and right - * hulls of trim strip. - *---------------------------------------------------------------------- - */ -void -Trimline::getNextPts( REAL vval, Backend& backend ) -{ - reset(); swap(); append( tinterp ); - assert( tinterp->param[1] >= vval ); - - register TrimVertex *p; - for( p=jarcl.getnextpt() ; p->param[1] >= vval; p=jarcl.getnextpt() ) { - append( p ); - } - - /* compute and copy pointer to final point on left hull */ - if( interpvert( last(), p, binterp, vval ) ) { - binterp->nuid = p->nuid; - backend.triangle( p, binterp, last() ); - append( binterp ); - } - jarcl.reverse(); - (void) jarcl.getprevpt(); /* reset jarcl to proper position */ - jarcl.reverse(); -} - -void -Trimline::getPrevPts( REAL vval, Backend& backend ) -{ - reset(); swap(); append( tinterp ); - assert( tinterp->param[1] >= vval ); - - register TrimVertex *q; - for( q=jarcl.getprevpt(); q->param[1] >= vval; q=jarcl.getprevpt() ) { - append( q ); - } - - /* compute and copy pointer to final point on right hull */ - if( interpvert( q, last(), binterp, vval ) ) { - binterp->nuid = q->nuid; - backend.triangle( last(), binterp, q ); - append( binterp ); - } - jarcl.reverse(); - (void) jarcl.getnextpt(); /* reset jarcl to proper position */ - jarcl.reverse(); -} - -void -Trimline::getNextPts( Arc_ptr botarc ) -{ - reset(); swap(); append( tinterp ); - -#ifndef NDEBUG - PwlArc *lastpwl = botarc->prev->pwlArc; - TrimVertex *lastpt1 = &lastpwl->pts[lastpwl->npts-1]; -#endif - TrimVertex *lastpt2 = botarc->pwlArc->pts; - register TrimVertex *p = jarcl.getnextpt(); - for( append( p ); p != lastpt2; append( p ) ) { - assert( p != lastpt1 ); - p = jarcl.getnextpt(); - } -} - -void -Trimline::getPrevPts( Arc_ptr botarc ) -{ - reset(); swap(); append( tinterp ); - - PwlArc *lastpwl = botarc->prev->pwlArc; - TrimVertex *lastpt1 = &lastpwl->pts[lastpwl->npts-1]; -#ifndef NDEBUG - TrimVertex *lastpt2 = botarc->pwlArc->pts; -#endif - - register TrimVertex *q = jarcl.getprevpt(); - for( append( q ); q != lastpt1; append( q ) ) { - assert( q != lastpt2 ); - q = jarcl.getprevpt(); - } -} - - -long -Trimline::interpvert( TrimVertex *a, TrimVertex *b, TrimVertex *c, REAL vval ) -{ - REAL denom = a->param[1] - b->param[1]; - - if(denom != 0) { - if( vval == a->param[1] ) { - c->param[0] = a->param[0]; - c->param[1] = a->param[1]; - c->nuid = a->nuid; - return 0; - } else if( vval == b->param[1] ) { - c->param[0] = b->param[0]; - c->param[1] = b->param[1]; - c->nuid = b->nuid; - return 0; - } else { - REAL r = (a->param[1] - vval)/denom; - c->param[0] = a->param[0] - r * (a->param[0] - b->param[0]); - c->param[1] = vval; - return 1; - } - } else { - c->param[0] = a->param[0]; - c->param[1] = a->param[1]; - c->nuid = a->nuid; - return 0; - } -} - diff --git a/src/glu/sgi/libnurbs/internals/trimline.h b/src/glu/sgi/libnurbs/internals/trimline.h deleted file mode 100644 index ecc884284cc..00000000000 --- a/src/glu/sgi/libnurbs/internals/trimline.h +++ /dev/null @@ -1,103 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * trimline.h - * - */ - -#ifndef __glutrimline_h_ -#define __glutrimline_h_ - -class Arc; -class Backend; - -#include "trimvertex.h" -#include "jarcloc.h" - - -class Trimline { -private: - TrimVertex** pts; - long numverts; - long i; - long size; - Jarcloc jarcl; - TrimVertex t, b; - TrimVertex *tinterp, *binterp; - void reset( void ) { numverts = 0; } - inline void grow( long ); - inline void swap( void ); - inline void append( TrimVertex * ); - static long interpvert( TrimVertex *, TrimVertex *, TrimVertex *, REAL ); - - - -public: - Trimline(); - ~Trimline(); - void init( TrimVertex * ); - void init( long, Arc_ptr, long ); - void getNextPt( void ); - void getPrevPt( void ); - void getNextPts( REAL, Backend & ); - void getPrevPts( REAL, Backend & ); - void getNextPts( Arc_ptr ); - void getPrevPts( Arc_ptr ); - inline TrimVertex * next( void ); - inline TrimVertex * prev( void ); - inline TrimVertex * first( void ); - inline TrimVertex * last( void ); -}; - -inline TrimVertex * -Trimline::next( void ) -{ - if( i < numverts) return pts[i++]; else return 0; -} - -inline TrimVertex * -Trimline::prev( void ) -{ - if( i >= 0 ) return pts[i--]; else return 0; -} - -inline TrimVertex * -Trimline::first( void ) -{ - i = 0; return pts[i]; -} - -inline TrimVertex * -Trimline::last( void ) -{ - i = numverts; return pts[--i]; -} -#endif /* __glutrimline_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/trimregion.cc b/src/glu/sgi/libnurbs/internals/trimregion.cc deleted file mode 100644 index 4aeb5eeac16..00000000000 --- a/src/glu/sgi/libnurbs/internals/trimregion.cc +++ /dev/null @@ -1,113 +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. -*/ - -/* - * trimregion.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "trimregion.h" - -TrimRegion::TrimRegion( void ) -{ -} - -void -TrimRegion::setDu( REAL du ) -{ - oneOverDu = 1.0/du; -} - -void -TrimRegion::init( long npts, Arc_ptr extrema ) -{ - left.init( npts, extrema, extrema->pwlArc->npts - 1 ); - left.getNextPt(); - - right.init( npts, extrema, 0 ); - right.getPrevPt(); -} - -void -TrimRegion::getPts( Arc_ptr extrema ) -{ - left.getNextPts( extrema ); - right.getPrevPts( extrema ); -} - -void -TrimRegion::getPts( Backend &backend ) -{ - left.getNextPts( bot.vval, backend ); - right.getPrevPts( bot.vval, backend ); -} - -void -TrimRegion::getGridExtent( void ) -{ - getGridExtent( left.last(), right.last() ); -} - -void -TrimRegion::getGridExtent( TrimVertex *l, TrimVertex *r ) -{ - bot.ustart = (long) ((l->param[0] - uarray.uarray[0])*oneOverDu); - if( l->param[0] >= uarray.uarray[bot.ustart] ) bot.ustart++; -// if( l->param[0] > uarray.uarray[bot.ustart] ) bot.ustart++; - assert( l->param[0] <= uarray.uarray[bot.ustart] ); - assert( l->param[0] >= uarray.uarray[bot.ustart-1] ); - - bot.uend = (long) ((r->param[0] - uarray.uarray[0])*oneOverDu); - if( uarray.uarray[bot.uend] >= r->param[0] ) bot.uend--; -// if( uarray.uarray[bot.uend] > r->param[0] ) bot.uend--; - assert( r->param[0] >= uarray.uarray[bot.uend] ); - assert( r->param[0] <= uarray.uarray[bot.uend+1] ); -} - -int -TrimRegion::canTile( void ) -{ - TrimVertex *lf = left.first(); - TrimVertex *ll = left.last(); - TrimVertex *l = ( ll->param[0] > lf->param[0] ) ? ll : lf; - - TrimVertex *rf = right.first(); - TrimVertex *rl = right.last(); - TrimVertex *r = ( rl->param[0] < rf->param[0] ) ? rl : rf; - return (l->param[0] <= r->param[0]) ? 1 : 0; -} - diff --git a/src/glu/sgi/libnurbs/internals/trimregion.h b/src/glu/sgi/libnurbs/internals/trimregion.h deleted file mode 100644 index ee15d7b9888..00000000000 --- a/src/glu/sgi/libnurbs/internals/trimregion.h +++ /dev/null @@ -1,84 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * trimregion.h - * - */ - -#ifndef __glutrimregion_h_ -#define __glutrimregion_h_ - -#include "trimline.h" -#include "gridline.h" -#include "uarray.h" - -class Arc; -class Backend; - -class TrimRegion { -public: - TrimRegion(); - Trimline left; - Trimline right; - Gridline top; - Gridline bot; - Uarray uarray; - - void init( REAL ); - void advance( REAL, REAL, REAL ); - void setDu( REAL ); - void init( long, Arc_ptr ); - void getPts( Arc_ptr ); - void getPts( Backend & ); - void getGridExtent( TrimVertex *, TrimVertex * ); - void getGridExtent( void ); - int canTile( void ); -private: - REAL oneOverDu; -}; - -inline void -TrimRegion::init( REAL vval ) -{ - bot.vval = vval; -} - -inline void -TrimRegion::advance( REAL topVindex, REAL botVindex, REAL botVval ) -{ - top.vindex = (long) topVindex; - bot.vindex = (long) botVindex; - top.vval = bot.vval; - bot.vval = botVval; - top.ustart = bot.ustart; - top.uend = bot.uend; -} -#endif /* __glutrimregion_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/trimvertex.h b/src/glu/sgi/libnurbs/internals/trimvertex.h deleted file mode 100644 index 2780b764a54..00000000000 --- a/src/glu/sgi/libnurbs/internals/trimvertex.h +++ /dev/null @@ -1,63 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * trimvertex.h - * - */ - -#ifndef __glutrimvertex_h_ -#define __glutrimvertex_h_ - -#include "types.h" - -/*#define USE_OPTTT*/ - -class TrimVertex { /* a vertex on a trim curve */ -public: - REAL param[2]; /* parametric space coords */ -#ifdef USE_OPTTT - REAL cache_point[4]; //only when USE_OPTTT is on in slicer.c++ - REAL cache_normal[3]; -#endif - long nuid; -}; - -typedef class TrimVertex *TrimVertex_p; - -inline REAL -det3( TrimVertex *a, TrimVertex *b, TrimVertex *c ) -{ - return a->param[0] * (b->param[1]-c->param[1]) + - b->param[0] * (c->param[1]-a->param[1]) + - c->param[0] * (a->param[1]-b->param[1]); -} - -#endif /* __glutrimvertex_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/trimvertpool.cc b/src/glu/sgi/libnurbs/internals/trimvertpool.cc deleted file mode 100644 index 3e5bd703806..00000000000 --- a/src/glu/sgi/libnurbs/internals/trimvertpool.cc +++ /dev/null @@ -1,119 +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. -*/ - -/* - * trimvertexpool.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "mystring.h" -#include "trimvertex.h" -#include "trimvertpool.h" -#include "bufpool.h" - -/*---------------------------------------------------------------------------- - * TrimVertexPool::TrimVertexPool - *---------------------------------------------------------------------------- - */ -TrimVertexPool::TrimVertexPool( void ) - : pool( sizeof(TrimVertex)*3, 32, "Threevertspool" ) -{ - // initialize array of pointers to vertex lists - nextvlistslot = 0; - vlistsize = INIT_VERTLISTSIZE; - vlist = new TrimVertex_p[vlistsize]; -} - -/*---------------------------------------------------------------------------- - * TrimVertexPool::~TrimVertexPool - *---------------------------------------------------------------------------- - */ -TrimVertexPool::~TrimVertexPool( void ) -{ - // free all arrays of TrimVertices vertices - while( nextvlistslot ) { - delete [] vlist[--nextvlistslot]; - } - - // reallocate space for array of pointers to vertex lists - if( vlist ) delete[] vlist; -} - -/*---------------------------------------------------------------------------- - * TrimVertexPool::clear - *---------------------------------------------------------------------------- - */ -void -TrimVertexPool::clear( void ) -{ - // reinitialize pool of 3 vertex arrays - pool.clear(); - - // free all arrays of TrimVertices vertices - while( nextvlistslot ) { - delete [] vlist[--nextvlistslot]; - vlist[nextvlistslot] = 0; - } - - // reallocate space for array of pointers to vertex lists - if( vlist ) delete[] vlist; - vlist = new TrimVertex_p[vlistsize]; -} - - -/*---------------------------------------------------------------------------- - * TrimVertexPool::get - allocate a vertex list - *---------------------------------------------------------------------------- - */ -TrimVertex * -TrimVertexPool::get( int n ) -{ - TrimVertex *v; - if( n == 3 ) { - v = (TrimVertex *) pool.new_buffer(); - } else { - if( nextvlistslot == vlistsize ) { - vlistsize *= 2; - TrimVertex_p *nvlist = new TrimVertex_p[vlistsize]; - memcpy( nvlist, vlist, nextvlistslot * sizeof(TrimVertex_p) ); - if( vlist ) delete[] vlist; - vlist = nvlist; - } - v = vlist[nextvlistslot++] = new TrimVertex[n]; - } - return v; -} diff --git a/src/glu/sgi/libnurbs/internals/trimvertpool.h b/src/glu/sgi/libnurbs/internals/trimvertpool.h deleted file mode 100644 index ebd3c04b1f1..00000000000 --- a/src/glu/sgi/libnurbs/internals/trimvertpool.h +++ /dev/null @@ -1,57 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * trimvertexpool.h - * - */ - -#ifndef __glutrimvertpool_h_ -#define __glutrimvertpool_h_ - -#include "bufpool.h" - -class TrimVertex; - -#define INIT_VERTLISTSIZE 200 - -class TrimVertexPool { -public: - TrimVertexPool( void ); - ~TrimVertexPool( void ); - void clear( void ); - TrimVertex * get( int ); -private: - Pool pool; - TrimVertex ** vlist; - int nextvlistslot; - int vlistsize; -}; -#endif /* __glutrimvertpool_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/types.h b/src/glu/sgi/libnurbs/internals/types.h deleted file mode 100644 index 8b59625cff5..00000000000 --- a/src/glu/sgi/libnurbs/internals/types.h +++ /dev/null @@ -1,47 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * types.h - * - */ - -#ifndef __glutypes_h_ -#define __glutypes_h_ - -//typedef double INREAL; -#define INREAL float -typedef float REAL; -typedef void (*Pfvv)( void ); -typedef void (*Pfvf)( float * ); -typedef int (*cmpfunc)(const void *, const void *); -typedef REAL Knot, *Knot_ptr;/* knot values */ - -#endif /* __glutypes_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/uarray.cc b/src/glu/sgi/libnurbs/internals/uarray.cc deleted file mode 100644 index 4b3329c0f27..00000000000 --- a/src/glu/sgi/libnurbs/internals/uarray.cc +++ /dev/null @@ -1,73 +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. -*/ - -/* - * uarray.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "uarray.h" -#include "arc.h" - -Uarray::Uarray( void ) -{ - uarray = 0; - size = 0; - ulines = 0; -} - -Uarray::~Uarray( void ) -{ - if( uarray ) delete[] uarray; -} - -long -Uarray::init( REAL delta, Arc_ptr lo, Arc_ptr hi ) -{ - ulines = (long) ((hi->tail()[0] - lo->tail()[0])/delta) + 3; - if( size < ulines ) { - size = ulines * 2; - if( uarray ) delete[] uarray; - uarray = new REAL[size]; - assert( uarray != 0); - } - uarray[0] = lo->tail()[0] - delta/2.0; - for( long i = 1 ; i != ulines; i++ ) - uarray[i] = uarray[0] + i*delta; - return ulines; -} - diff --git a/src/glu/sgi/libnurbs/internals/uarray.h b/src/glu/sgi/libnurbs/internals/uarray.h deleted file mode 100644 index cc6fae1b754..00000000000 --- a/src/glu/sgi/libnurbs/internals/uarray.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * uarray.h - * - */ - -#ifndef __gluuarray_h_ -#define __gluuarray_h_ - -#include "types.h" - -class Arc; -typedef class Arc *Arc_ptr; - -class Uarray { -private: - long size; - long ulines; -public: - Uarray(); - ~Uarray(); - long init( REAL, Arc_ptr, Arc_ptr ); - REAL * uarray; -}; - -#endif /* __gluuarray_h_ */ diff --git a/src/glu/sgi/libnurbs/internals/varray.cc b/src/glu/sgi/libnurbs/internals/varray.cc deleted file mode 100644 index 1cb235443ad..00000000000 --- a/src/glu/sgi/libnurbs/internals/varray.cc +++ /dev/null @@ -1,152 +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. -*/ - -/* - * varray.c++ - * - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "varray.h" -#include "arc.h" -#include "simplemath.h" // glu_abs() - -#define TINY 0.0001 -inline long sgn( REAL x ) -{ - return (x < -TINY) ? -1 : ((x > TINY) ? 1 : 0 ); -} - - -Varray::Varray( void ) -{ - int i; - - varray = 0; - size = 0; - numquads = 0; - - for (i = 0; i < 1000; i++) { - vval[i] = 0; - voffset[i] = 0; - } -} - -Varray::~Varray( void ) -{ - if( varray ) delete[] varray; -} - -inline void -Varray::update( Arc_ptr arc, long dir[2], REAL val ) -{ - register long ds = sgn(arc->tail()[0] - arc->prev->tail()[0]); - register long dt = sgn(arc->tail()[1] - arc->prev->tail()[1]); - - if( dir[0] != ds || dir[1] != dt ) { - dir[0] = ds; - dir[1] = dt; - append( val ); - } -} - -void -Varray::grow( long guess ) -{ - if( size < guess ) { - size = guess * 2; - if( varray ) delete[] varray; - varray = new REAL[size]; - assert( varray != 0 ); - } -} - -long -Varray::init( REAL delta, Arc_ptr toparc, Arc_ptr botarc ) -{ - Arc_ptr left = toparc->next; - Arc_ptr right = toparc; - long ldir[2], rdir[2]; - - ldir[0] = sgn( left->tail()[0] - left->prev->tail()[0] ); - ldir[1] = sgn( left->tail()[1] - left->prev->tail()[1] ); - rdir[0] = sgn( right->tail()[0] - right->prev->tail()[0] ); - rdir[1] = sgn( right->tail()[1] - right->prev->tail()[1] ); - - vval[0] = toparc->tail()[1]; - numquads = 0; - - while( 1 ) { - switch( sgn( left->tail()[1] - right->prev->tail()[1] ) ) { - case 1: - left = left->next; - update( left, ldir, left->prev->tail()[1] ); - break; - case -1: - right = right->prev; - update( right, rdir, right->tail()[1] ); - break; - case 0: - if( glu_abs(left->tail()[1] - botarc->tail()[1]) < TINY) goto end; - if( glu_abs(left->tail()[0]-right->prev->tail()[0]) < TINY && - glu_abs(left->tail()[1]-right->prev->tail()[1]) < TINY) goto end; - left = left->next; - break; - } - } - -end: - append( botarc->tail()[1] ); - - grow( ((long) ((vval[0] - vval[numquads])/delta)) + numquads + 2 ); - - long i, index = 0; - for( i=0; i<numquads; i++ ) { - voffset[i] = index; - varray[index++] = vval[i]; - REAL dist = vval[i] - vval[i+1]; - if( dist > delta ) { - long steps = ((long) (dist/delta)) +1; - float deltav = - dist / (REAL) steps; - for( long j=1; j<steps; j++ ) - varray[index++] = vval[i] + j * deltav; - } - } - voffset[i] = index; - varray[index] = vval[i]; - return index; -} - diff --git a/src/glu/sgi/libnurbs/internals/varray.h b/src/glu/sgi/libnurbs/internals/varray.h deleted file mode 100644 index b12ff837c85..00000000000 --- a/src/glu/sgi/libnurbs/internals/varray.h +++ /dev/null @@ -1,68 +0,0 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -/* - * varray.h - * - */ - -#ifndef __gluvarray_h_ -#define __gluvarray_h_ - -#include "types.h" - -class Arc; - -class Varray { -public: - Varray(); - ~Varray(); - long init( REAL, Arc *, Arc * ); - REAL * varray; - REAL vval[1000]; - long voffset[1000]; - long numquads; - -private: - long size; - inline void update( Arc *, long[2], REAL ); - void grow( long ); - inline void append( REAL ); -}; - -inline void -Varray::append( REAL v ) -{ - if( v != vval[numquads] ) - vval[++numquads] = v; -} - - -#endif /* __gluvarray_h_ */ |