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authormarha <marha@users.sourceforge.net>2012-09-03 09:54:39 +0200
committermarha <marha@users.sourceforge.net>2012-09-03 09:54:39 +0200
commitb86e8562b1ddca2a8bc29f22a79451a041bf5293 (patch)
tree60fead0638fce6922b4043767fa991ff1f0e3488 /mesalib/src/glu/sgi/libnurbs/nurbtess/monoTriangulation.h
parent53192e17e55aa9ed3e3721bf4fdcb2b01a595202 (diff)
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mesa xkeyboard-config git update 3 sep 2012
Diffstat (limited to 'mesalib/src/glu/sgi/libnurbs/nurbtess/monoTriangulation.h')
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diff --git a/mesalib/src/glu/sgi/libnurbs/nurbtess/monoTriangulation.h b/mesalib/src/glu/sgi/libnurbs/nurbtess/monoTriangulation.h
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--- a/mesalib/src/glu/sgi/libnurbs/nurbtess/monoTriangulation.h
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-/*
- * 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.
- */
-/*
-*/
-
-#ifndef _MONO_TRIANGULATION_H
-#define _MONO_TRIANGULATION_H
-
-#include "definitions.h"
-#include "primitiveStream.h"
-#include "directedLine.h"
-#include "arc.h"
-
-class Backend;
-
-class reflexChain{
- Real2 *queue;
- /*the order of the polygon vertices: either q[0],q[1].., or
- * q[n-1], q[n-2], ..., q[0]
- *this order determines the interior of the polygon, so it
- *also used to determines whether a chain is reflex or convex
- */
- Int isIncreasing;
- Int index_queue;
- Int size_queue; /*allocated size*/
-
-public:
- reflexChain(Int size, Int isIncreasing);
- ~reflexChain();
-
- void insert(Real u, Real v);
- void insert(Real v[2]);
-
- void processNewVertex(Real v[2], primStream* pStream);
- void outputFan(Real v[2], primStream* pStream);
-
- void processNewVertex(Real v[2], Backend* backend);
- void outputFan(Real v[2], Backend* backend);
-
- void print();
-};
-
-/*dynamic array of pointers to reals.
- *Intended to store an array of (u,v).
- *Notice that it doesn't allocate or dealocate the space
- *for the (u,v) themselfs. So it assums that someone else
- *is taking care of them, while this class only plays with
- *the pointers.
- */
-class vertexArray{
- Real** array;
- Int index;
- Int size;
-public:
- vertexArray(Int s);
- vertexArray(Real vertices[][2], Int nVertices);
- ~vertexArray();
- void appendVertex(Real* ptr); /*the content (pointed by ptr is NOT copied*/
- Real* getVertex(Int i) {return array[i];}
- Real** getArray() {return array;}
- Int getNumElements() {return index;}
- Int findIndexAbove(Real v);
- Int findIndexAboveGen(Real v, Int startIndex, Int EndIndex);
- Int findIndexBelowGen(Real v, Int startIndex, Int EndIndex);
- Int findIndexStrictBelowGen(Real v, Int startIndex, Int EndIndex);
- Int findIndexFirstAboveEqualGen(Real v, Int startIndex, Int endIndex);
- Int skipEqualityFromStart(Real v, Int start, Int end);
- //return i such that fron [i+1, end] is strictly U-monotone (left to right
- Int findDecreaseChainFromEnd(Int begin, Int end);
- void print();
-};
-
-void monoTriangulation(directedLine* monoPolygon, primStream* pStream);
-
-void monoTriangulationRec(Real* topVertex, Real* botVertex,
- vertexArray* inc_chain, Int inc_current,
- vertexArray* dec_chain, Int dec_current,
- primStream* pStream);
-
-void monoTriangulationRec(directedLine* inc_chain, Int inc_index,
- directedLine* dec_chain, Int dec_index,
- directedLine* topVertex, Int top_index,
- directedLine* botVertex,
- primStream* pStream);
-
-/*the chain could be increasing or decreasing, although we use the
- * name inc_chain.
- *the argument is_increase_chain indicates whether this chain
- *is increasing (left chain in V-monotone case) or decreaing (right chain
- *in V-monotone case).
- */
-void monoTriangulation2(Real* topVertex, Real* botVertex,
- vertexArray* inc_chain, Int inc_smallIndex,
- Int inc_largeIndex,
- Int is_increase_chain,
- primStream* pStream);
-void monoTriangulationRecGen(Real* topVertex, Real* botVertex,
- vertexArray* inc_chain, Int inc_current, Int inc_end,
- vertexArray* dec_chain, Int dec_current, Int dec_end,
- primStream* pStream);
-
-void monoTriangulationRecGenOpt(Real* topVertex, Real* botVertex,
- vertexArray* inc_chain, Int inc_current, Int inc_end,
- vertexArray* dec_chain, Int dec_current, Int dec_end,
- primStream* pStream);
-
-void triangulateXYMonoTB(Int n_left, Real** leftVerts,
- Int n_right, Real** rightVerts,
- primStream* pStream);
-
-void monoTriangulationRecGenTBOpt(Real* topVertex, Real* botVertex,
- vertexArray* inc_chain, Int inc_current, Int inc_end,
- vertexArray* dec_chain, Int dec_current, Int dec_end,
- primStream* pStream);
-
-void monoTriangulationRecOpt(Real* topVertex, Real* botVertex,
- vertexArray* left_chain, Int left_current,
- vertexArray* right_chain, Int right_current,
- primStream* pStream);
-
-void monoTriangulationRecFunGen(Real* topVertex, Real* botVertex,
- vertexArray* inc_chain, Int inc_current, Int inc_end,
- vertexArray* dec_chain, Int dec_current, Int dec_end,
- Int (*compFun)(Real*, Real*),
- primStream* pStream);
-
-void monoTriangulationRecFun(Real* topVertex, Real* botVertex,
- vertexArray* inc_chain, Int inc_current,
- vertexArray* dec_chain, Int dec_current,
- Int (*compFun)(Real*, Real*),
- primStream* pStream);
-void monoTriangulationFun(directedLine* monoPolygon,
- Int (*compFun)(Real*, Real*), primStream* pStream);
-
-
-
-
-void monoTriangulationRec(Real* topVertex, Real* botVertex,
- vertexArray* inc_chain, Int inc_current,
- vertexArray* dec_chain, Int dec_current,
- Backend* backend);
-
-void monoTriangulationFunBackend(Arc_ptr loop, Int (*compFun)(Real*, Real*), Backend* backend);
-
-void monoTriangulationRecFunBackend(Real* topVertex, Real* botVertex,
- vertexArray* inc_chain, Int inc_current,
- vertexArray* dec_chain, Int dec_current,
- Int (*compFun)(Real*, Real*),
- Backend* backend);
-
-void monoTriangulationOpt(directedLine* poly, primStream* pStream);
-
-#endif
-
-
-
-