| /* |
| * 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 |
| * |
| * $Date: 2012/03/29 17:22:18 $ $Revision: 1.1.1.1 $ |
| * $Header: /cvs/bao-parsec/pkgs/libs/mesa/src/src/glu/sgi/libnurbs/internals/trimregion.h,v 1.1.1.1 2012/03/29 17:22:18 uid42307 Exp $ |
| */ |
| |
| #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_ */ |