diff options
Diffstat (limited to 'mesalib/src/glu/sgi/libnurbs/internals/trimregion.cc')
-rw-r--r-- | mesalib/src/glu/sgi/libnurbs/internals/trimregion.cc | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/trimregion.cc b/mesalib/src/glu/sgi/libnurbs/internals/trimregion.cc deleted file mode 100644 index 4aeb5eeac..000000000 --- a/mesalib/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; -} - |