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/*
** SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
** Copyright (C) [dates of first publication] 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.
*/
/*
** Author: Eric Veach, July 1994.
*/
#ifndef TESS_H
#define TESS_H
#include <setjmp.h>
#include "bucketalloc.h"
#include "mesh.h"
#include "dict.h"
#include "priorityq.h"
#include <libtess2/tesselator.h>
#ifdef __cplusplus
extern "C" {
#endif
//typedef struct TESStesselator TESStesselator;
struct TESStesselator {
/*** state needed for collecting the input data ***/
TESSmesh *mesh; /* stores the input contours, and eventually
the tessellation itself */
int outOfMemory;
/*** state needed for projecting onto the sweep plane ***/
TESSreal normal[3]; /* user-specified normal (if provided) */
TESSreal sUnit[3]; /* unit vector in s-direction (debugging) */
TESSreal tUnit[3]; /* unit vector in t-direction (debugging) */
TESSreal bmin[2];
TESSreal bmax[2];
/*** state needed for the line sweep ***/
int windingRule; /* rule for determining polygon interior */
Dict *dict; /* edge dictionary for sweep line */
PriorityQ *pq; /* priority queue of vertex events */
TESSvertex *event; /* current sweep event being processed */
struct BucketAlloc* regionPool;
TESSindex vertexIndexCounter;
TESSreal *vertices;
TESSindex *vertexIndices;
int vertexCount;
TESSindex *elements;
int elementCount;
TESSalloc alloc;
jmp_buf env; /* place to jump to when memAllocs fail */
};
#ifdef __cplusplus
};
#endif
#endif
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