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Diffstat (limited to 'mesalib/src/glu/sgi/libnurbs/internals/trimregion.h')
-rw-r--r-- | mesalib/src/glu/sgi/libnurbs/internals/trimregion.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/trimregion.h b/mesalib/src/glu/sgi/libnurbs/internals/trimregion.h new file mode 100644 index 000000000..ee15d7b98 --- /dev/null +++ b/mesalib/src/glu/sgi/libnurbs/internals/trimregion.h @@ -0,0 +1,84 @@ +/* + * 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_ */ |