+++ /dev/null
-/*
- * 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.
- */
-
-/*
- * arc.h
- *
- */
-
-#ifndef __gluarc_h_
-#define __gluarc_h_
-
-#include "myassert.h"
-#include "bufpool.h"
-#include "mystdio.h"
-#include "types.h"
-#include "pwlarc.h"
-#include "trimvertex.h"
-
-class Bin;
-class Arc;
-struct BezierArc;
-
-typedef class Arc *Arc_ptr;
-
-enum arc_side { arc_none = 0, arc_right, arc_top, arc_left, arc_bottom };
-
-
-class Arc: public PooledObj { /* an arc, in two list, the trim list and bin */
-
-public:
- static const int bezier_tag;
- static const int arc_tag;
- static const int tail_tag;
- Arc_ptr prev; /* trim list pointer */
- Arc_ptr next; /* trim list pointer */
- Arc_ptr link; /* bin pointers */
- BezierArc * bezierArc; /* associated bezier arc */
- PwlArc * pwlArc; /* associated pwl arc */
- long type; /* curve type */
- long nuid;
-
- inline Arc( Arc *, PwlArc * );
- inline Arc( arc_side, long );
-
- Arc_ptr append( Arc_ptr );
- int check( void );
- int isMonotone( void );
- int isDisconnected( void );
- int numpts( void );
- void markverts( void );
- void getextrema( Arc_ptr[4] );
- void print( void );
- void show( void );
- void makeSide( PwlArc *, arc_side );
- inline int isTessellated() { return pwlArc ? 1 : 0; }
- inline long isbezier() { return type & bezier_tag; }
- inline void setbezier() { type |= bezier_tag; }
- inline void clearbezier() { type &= ~bezier_tag; }
- inline long npts() { return pwlArc->npts; }
- inline TrimVertex * pts() { return pwlArc->pts; }
- inline REAL * tail() { return pwlArc->pts[0].param; }
- inline REAL * head() { return next->pwlArc->pts[0].param; }
- inline REAL * rhead() { return pwlArc->pts[pwlArc->npts-1].param; }
- inline long ismarked() { return type & arc_tag; }
- inline void setmark() { type |= arc_tag; }
- inline void clearmark() { type &= (~arc_tag); }
- inline void clearside() { type &= ~(0x7 << 8); }
- inline void setside( arc_side s ) { clearside(); type |= (((long)s)<<8); }
- inline arc_side getside() { return (arc_side) ((type>>8) & 0x7); }
- inline int getitail() { return type & tail_tag; }
- inline void setitail() { type |= tail_tag; }
- inline void clearitail() { type &= (~tail_tag); }
-};
-
-/*--------------------------------------------------------------------------
- * Arc - initialize a new Arc with the same type and uid of
- * a given Arc and a given pwl arc
- *--------------------------------------------------------------------------
- */
-
-inline
-Arc::Arc( Arc *j, PwlArc *p )
-{
- prev = NULL;
- next = NULL;
- link = NULL;
- bezierArc = NULL;
- pwlArc = p;
- type = j->type;
- nuid = j->nuid;
-}
-
-/*--------------------------------------------------------------------------
- * Arc - initialize a new Arc with the same type and uid of
- * a given Arc and a given pwl arc
- *--------------------------------------------------------------------------
- */
-
-inline
-Arc::Arc( arc_side side, long _nuid )
-{
- prev = NULL;
- next = NULL;
- link = NULL;
- bezierArc = NULL;
- pwlArc = NULL;
- type = 0;
- setside( side );
- nuid = _nuid;
-}
-
-#endif /* __gluarc_h_ */
projects / mesa.git / blobdiff