diff options
Diffstat (limited to 'src/glu/sgi/libnurbs/internals/patchlist.cc')
| -rw-r--r-- | src/glu/sgi/libnurbs/internals/patchlist.cc | 169 |
1 files changed, 0 insertions, 169 deletions
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; -} |