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Diffstat (limited to 'src/glu/sgi/libnurbs/internals/nurbstess.cc')
| -rw-r--r-- | src/glu/sgi/libnurbs/internals/nurbstess.cc | 691 |
1 files changed, 0 insertions, 691 deletions
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; -} - - - - - |