From b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73 Mon Sep 17 00:00:00 2001 From: Mike Gabriel Date: Mon, 2 Feb 2015 15:02:49 +0100 Subject: massive reduction of unneeded files --- .../main/gfx/lib/glu/libnurbs/GNUmakefile | 54 - .../ogl-sample/main/gfx/lib/glu/libnurbs/Imakefile | 43 - .../gfx/lib/glu/libnurbs/interface/GNUmakefile | 75 - .../main/gfx/lib/glu/libnurbs/interface/Imakefile | 63 - .../gfx/lib/glu/libnurbs/interface/bezierEval.cc | 258 --- .../gfx/lib/glu/libnurbs/interface/bezierEval.h | 55 - .../gfx/lib/glu/libnurbs/interface/bezierPatch.cc | 205 -- .../gfx/lib/glu/libnurbs/interface/bezierPatch.h | 111 - .../lib/glu/libnurbs/interface/bezierPatchMesh.cc | 613 ----- .../lib/glu/libnurbs/interface/bezierPatchMesh.h | 127 - .../gfx/lib/glu/libnurbs/interface/glcurveval.cc | 400 ---- .../gfx/lib/glu/libnurbs/interface/glcurveval.h | 158 -- .../gfx/lib/glu/libnurbs/interface/glimports.h | 48 - .../gfx/lib/glu/libnurbs/interface/glinterface.cc | 468 ---- 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b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/GNUmakefile deleted file mode 100644 index 688658555..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/GNUmakefile +++ /dev/null @@ -1,54 +0,0 @@ -#!gmake -# -# License Applicability. Except to the extent portions of this file are -# made subject to an alternative license as permitted in the SGI Free -# Software License B, Version 1.1 (the "License"), the contents of this -# file are subject only to the provisions of the License. You may not use -# this file except in compliance with the License. You may obtain a copy -# of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -# Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -# -# http://oss.sgi.com/projects/FreeB -# -# Note that, as provided in the License, the Software is distributed on an -# "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -# DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -# CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -# PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -# -# Original Code. The Original Code is: OpenGL Sample Implementation, -# Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -# Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -# Copyright in any portions created by third parties is as indicated -# elsewhere herein. All Rights Reserved. -# -# Additional Notice Provisions: The application programming interfaces -# established by SGI in conjunction with the Original Code are The -# OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -# April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -# 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -# Window System(R) (Version 1.3), released October 19, 1998. This software -# was created using the OpenGL(R) version 1.2.1 Sample Implementation -# published by SGI, but has not been independently verified as being -# compliant with the OpenGL(R) version 1.2.1 Specification. -# -# $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ -# $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/GNUmakefile,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - -COMMONPREF = standard -include $(ROOT)/usr/include/make/commondefs - -SUBDIRS = \ - internals \ - interface \ - nurbtess \ - $(NULL) - -default $(ALLTARGS): $(_FORCE) - $(SUBDIRS_MAKERULE) - -distoss: - $(MAKE) $(COMMONPREF)$@ - $(SUBDIRS_MAKERULE) - -include $(COMMONRULES) diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/Imakefile b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/Imakefile deleted file mode 100644 index aa5f72dfe..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/Imakefile +++ /dev/null @@ -1,43 +0,0 @@ -XCOMM License Applicability. Except to the extent portions of this file are -XCOMM made subject to an alternative license as permitted in the SGI Free -XCOMM Software License B, Version 1.1 (the "License"), the contents of this -XCOMM file are subject only to the provisions of the License. You may not use -XCOMM this file except in compliance with the License. You may obtain a copy -XCOMM of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -XCOMM Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -XCOMM -XCOMM http://oss.sgi.com/projects/FreeB -XCOMM -XCOMM Note that, as provided in the License, the Software is distributed on an -XCOMM "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -XCOMM DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -XCOMM CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -XCOMM PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -XCOMM -XCOMM Original Code. The Original Code is: OpenGL Sample Implementation, -XCOMM Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -XCOMM Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -XCOMM Copyright in any portions created by third parties is as indicated -XCOMM elsewhere herein. All Rights Reserved. -XCOMM -XCOMM Additional Notice Provisions: The application programming interfaces -XCOMM established by SGI in conjunction with the Original Code are The -XCOMM OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -XCOMM April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -XCOMM 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -XCOMM Window System(R) (Version 1.3), released October 19, 1998. This software -XCOMM was created using the OpenGL(R) version 1.2.1 Sample Implementation -XCOMM published by SGI, but has not been independently verified as being -XCOMM compliant with the OpenGL(R) version 1.2.1 Specification. -XCOMM - -#define IHaveSubdirs -#define PassCDebugFlags 'CDEBUGFLAGS=$(CDEBUGFLAGS)' - -SUBDIRS = \ - internals \ - interface \ - nurbtess - -MakeSubdirs($(SUBDIRS)) -DependSubdirs($(SUBDIRS)) diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/GNUmakefile b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/GNUmakefile deleted file mode 100644 index e60b6ce5d..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/GNUmakefile +++ /dev/null @@ -1,75 +0,0 @@ -#!gmake -# -# License Applicability. Except to the extent portions of this file are -# made subject to an alternative license as permitted in the SGI Free -# Software License B, Version 1.1 (the "License"), the contents of this -# file are subject only to the provisions of the License. You may not use -# this file except in compliance with the License. You may obtain a copy -# of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -# Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -# -# http://oss.sgi.com/projects/FreeB -# -# Note that, as provided in the License, the Software is distributed on an -# "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -# DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -# CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -# PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -# -# Original Code. The Original Code is: OpenGL Sample Implementation, -# Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -# Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -# Copyright in any portions created by third parties is as indicated -# elsewhere herein. All Rights Reserved. -# -# Additional Notice Provisions: The application programming interfaces -# established by SGI in conjunction with the Original Code are The -# OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -# April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -# 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -# Window System(R) (Version 1.3), released October 19, 1998. This software -# was created using the OpenGL(R) version 1.2.1 Sample Implementation -# published by SGI, but has not been independently verified as being -# compliant with the OpenGL(R) version 1.2.1 Specification. -# -# $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ -# $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/GNUmakefile,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - -include $(ROOT)/usr/include/make/commondefs - -TARGET = libinterface.a - -TARGETS = $(TARGET) - -LCXXDEFS = -DNDEBUG -DLIBRARYBUILD -LCXXINCS = -I. -I../../include -I../internals -I../nurbtess - -HFILES = \ - glcurveval.h \ - glrenderer.h \ - glsurfeval.h \ - bezierPatch.h \ - bezierEval.h \ - bezierPatchMesh.h \ - $(NULL) - -CCFILES = \ - glcurveval.cc \ - glinterface.cc \ - glrenderer.cc \ - glsurfeval.cc \ - insurfeval.cc \ - bezierPatch.cc \ - bezierEval.cc \ - bezierPatchMesh.cc \ - incurveeval.cc \ - $(NULL) - -default libs libs_install install: $(TARGET) - -headers headers_install apps: - -$(TARGET): $(OBJECTS) - $(AR) crl $@ $(OBJECTS); - -include $(COMMONRULES) diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/Imakefile b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/Imakefile deleted file mode 100644 index edb8cd83b..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/Imakefile +++ /dev/null @@ -1,63 +0,0 @@ -XCOMM License Applicability. Except to the extent portions of this file are -XCOMM made subject to an alternative license as permitted in the SGI Free -XCOMM Software License B, Version 1.1 (the "License"), the contents of this -XCOMM file are subject only to the provisions of the License. You may not use -XCOMM this file except in compliance with the License. You may obtain a copy -XCOMM of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -XCOMM Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -XCOMM -XCOMM http://oss.sgi.com/projects/FreeB -XCOMM -XCOMM Note that, as provided in the License, the Software is distributed on an -XCOMM "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -XCOMM DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -XCOMM CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -XCOMM PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -XCOMM -XCOMM Original Code. The Original Code is: OpenGL Sample Implementation, -XCOMM Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -XCOMM Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -XCOMM Copyright in any portions created by third parties is as indicated -XCOMM elsewhere herein. All Rights Reserved. -XCOMM -XCOMM Additional Notice Provisions: The application programming interfaces -XCOMM established by SGI in conjunction with the Original Code are The -XCOMM OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -XCOMM April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -XCOMM 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -XCOMM Window System(R) (Version 1.3), released October 19, 1998. This software -XCOMM was created using the OpenGL(R) version 1.2.1 Sample Implementation -XCOMM published by SGI, but has not been independently verified as being -XCOMM compliant with the OpenGL(R) version 1.2.1 Specification. -XCOMM - -#include - -OBJS = \ - bezierEval.o \ - bezierPatch.o \ - bezierPatchMesh.o \ - glcurveval.o \ - glinterface.o \ - glrenderer.o \ - glsurfeval.o \ - incurveeval.o \ - insurfeval.o - -INCLUDES = \ - -I../internals \ - -I../nurbtess \ - -I../../include \ - -I$(TOP)/include \ - -I$(TOP)/include/GL - -DEFINES = \ - -DLIBRARYBUILD \ - -DNDEBUG - -NormalCplusplusObjectRule() - -NormalLibraryTarget(interface, $(OBJS)) - -DependTarget() -CleanTarget() diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierEval.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierEval.cc deleted file mode 100644 index b54ffa751..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierEval.cc +++ /dev/null @@ -1,258 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ -*/ -/* $XFree86$ */ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierEval.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ -*/ - -#include -#include -#include -#include -#include "bezierEval.h" - -#define TOLERANCE 0.0001 - -#ifndef MAX_ORDER -#define MAX_ORDER 16 -#endif - -#ifndef MAX_DIMENSION -#define MAX_DIMENSION 4 -#endif - -static void normalize(float vec[3]); -static void crossProduct(float x[3], float y[3], float ret[3]); -#ifdef UNUSED -static void bezierCurveEvalfast(float u0, float u1, int order, float *ctlpoints, int stride, int dimension, float u, float retpoint[]); -#endif - -static float binomialCoefficients[8][8] = { - {1,0,0,0,0,0,0,0}, - {1,1,0,0,0,0,0,0}, - {1,2,1,0,0,0,0,0}, - {1,3,3,1,0,0,0,0}, - {1,4,6,4,1,0,0,0}, - {1,5,10,10,5,1,0,0}, - {1,6,15,20,15,6,1,0}, - {1,7,21,35,35,21,7,1} -}; - -void bezierCurveEval(float u0, float u1, int order, float *ctlpoints, int stride, int dimension, float u, float retpoint[]) -{ - float uprime = (u-u0)/(u1-u0); - float *ctlptr = ctlpoints; - float oneMinusX = 1.0-uprime; - float XPower = 1.0; - - int i,k; - for(k=0; k=1. - */ -#ifdef UNUSED -static void bezierCurveEvalfast(float u0, float u1, int order, float *ctlpoints, int stride, int dimension, float u, float retpoint[]) -{ - float uprime = (u-u0)/(u1-u0); - float buf[MAX_ORDER][MAX_ORDER][MAX_DIMENSION]; - float* ctlptr = ctlpoints; - int r, i,j; - for(i=0; i=1. - */ -void bezierCurveEvalDer(float u0, float u1, int order, float *ctlpoints, int stride, int dimension, float u, float retDer[]) -{ - int i,k; - float width = u1-u0; - float *ctlptr = ctlpoints; - - float buf[MAX_ORDER][MAX_DIMENSION]; - if(order == 1){ - for(k=0; k=3 && dimension <=4); - bezierSurfEvalDerGen(1,0, u0, u1, uorder, v0, v1, vorder, dimension, ctlpoints, ustride, vstride, u, v, partialU); - bezierSurfEvalDerGen(0,1, u0, u1, uorder, v0, v1, vorder, dimension, ctlpoints, ustride, vstride, u, v, partialV); - - if(dimension == 3){/*inhomogeneous*/ - crossProduct(partialU, partialV, retNormal); - - normalize(retNormal); - - return; - } - else { /*homogeneous*/ - float val[4]; /*the point coordinates (without derivative)*/ - float newPartialU[MAX_DIMENSION]; - float newPartialV[MAX_DIMENSION]; - int i; - bezierSurfEvalDerGen(0,0, u0, u1, uorder, v0, v1, vorder, dimension, ctlpoints, ustride, vstride, u, v, val); - - for(i=0; i<=2; i++){ - newPartialU[i] = partialU[i] * val[3] - val[i] * partialU[3]; - newPartialV[i] = partialV[i] * val[3] - val[i] * partialV[3]; - } - crossProduct(newPartialU, newPartialV, retNormal); - normalize(retNormal); - } -} - -/*if size is 0, then nothing is done*/ -static void normalize(float vec[3]) -{ - float size = sqrt(vec[0]*vec[0] + vec[1]*vec[1] + vec[2]*vec[2]); - - if(size < TOLERANCE) - { -#ifdef DEBUG - fprintf(stderr, "Warning: in oglBSpline.c normal is 0\n"); -#endif - return; - } - else { - vec[0] = vec[0]/size; - vec[1] = vec[1]/size; - vec[2] = vec[2]/size; - } -} - - -static void crossProduct(float x[3], float y[3], float ret[3]) -{ - ret[0] = x[1]*y[2] - y[1]*x[2]; - ret[1] = x[2]*y[0] - y[2]*x[0]; - ret[2] = x[0]*y[1] - y[0]*x[1]; - -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierEval.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierEval.h deleted file mode 100644 index 9dd4ce5ef..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierEval.h +++ /dev/null @@ -1,55 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierEval.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ -*/ - -#ifndef _BEZIEREVAL_H -#define _BEZIEREVAL_H - -void bezierCurveEval(float u0, float u1, int order, float *ctlpoints, int stride, int dimension, float u, float retpoint[]); -void bezierCurveEvalDer(float u0, float u1, int order, float *ctlpoints, int stride, int dimension, float u, float retDer[]); -void bezierCurveEvalDerGen(int der, float u0, float u1, int order, float *ctlpoints, int stride, int dimension, float u, float retDer[]); - - -void bezierSurfEvalDerGen(int uder, int vder, float u0, float u1, int uorder, float v0, float v1, int vorder, int dimension, float *ctlpoints, int ustride, int vstride, float u, float v, float ret[]); - -void bezierSurfEval(float u0, float u1, int uorder, float v0, float v1, int vorder, int dimension, float *ctlpoints, int ustride, int vstride, float u, float v, float ret[]); - -void bezierSurfEvalNormal(float u0, float u1, int uorder, float v0, float v1, int vorder, int dimension, float *ctlpoints, int ustride, int vstride, float u, float v, float retNormal[]); - - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatch.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatch.cc deleted file mode 100644 index 8129f2d69..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatch.cc +++ /dev/null @@ -1,205 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatch.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ -*/ - -#include "gluos.h" -#include -#include -#include -#include /*for drawing bzier patch*/ -#include "bezierPatch.h" -#include "bezierEval.h" - -/* - *allocate an instance of bezierPatch. The control points are unknown. But - *the space of this array is allocated with size of - * uorder*vorder*dimension - * - */ -bezierPatch* bezierPatchMake(float umin, float vmin, float umax, float vmax, int uorder, int vorder, int dimension) -{ - bezierPatch* ret = (bezierPatch*) malloc(sizeof(bezierPatch)); - assert(ret); - ret->umin = umin; - ret->vmin = vmin; - ret->umax = umax; - ret->vmax = vmax; - ret->uorder = uorder; - ret->vorder = vorder; - ret->dimension = dimension; - ret->ctlpoints = (float*) malloc(sizeof(float) * dimension * uorder * vorder); - assert(ret->ctlpoints); - - ret->next = NULL; - - return ret; -} - -bezierPatch* bezierPatchMake2(float umin, float vmin, float umax, float vmax, int uorder, int vorder, int dimension, int ustride, int vstride, float* ctlpoints) -{ - bezierPatch* ret = (bezierPatch*) malloc(sizeof(bezierPatch)); - assert(ret); - ret->umin = umin; - ret->vmin = vmin; - ret->umax = umax; - ret->vmax = vmax; - ret->uorder = uorder; - ret->vorder = vorder; - ret->dimension = dimension; - ret->ctlpoints = (float*) malloc(sizeof(float) * dimension * uorder * vorder); - assert(ret->ctlpoints); - - /*copy the control points there*/ - int the_ustride = vorder * dimension; - int the_vstride = dimension; - for(int i=0; ictlpoints[i * the_ustride + j*the_vstride+k] = ctlpoints[i*ustride+j*vstride+k]; - - ret->next = NULL; - - return ret; -} - -/* - *deallocate the space as allocated by Make - */ -void bezierPatchDelete(bezierPatch *b) -{ - free(b->ctlpoints); - free(b); -} - -/*delete the whole linked list - */ -void bezierPatchDeleteList(bezierPatch *b) -{ - bezierPatch *temp; - for(temp = b; temp != NULL; temp = temp->next) - bezierPatchDelete(temp); -} - -bezierPatch* bezierPatchInsert(bezierPatch *list, bezierPatch *b) -{ - b->next = list; - return b; -} - -/*print the data stored in this patch*/ -void bezierPatchPrint(bezierPatch *b) -{ - printf("bezierPatch:\n"); - printf("umin,umax=(%f,%f), (vmin, vmax)=(%f,%f)\n", b->umin, b->umax, b->vmin, b->vmax); - printf("uorder=%i, vorder=%i\n", b->uorder, b->vorder); - printf("idmension = %i\n", b->dimension); -} - -/*print the whole list*/ -void bezierPatchPrintList(bezierPatch *list) -{ - bezierPatch* temp; - for(temp=list; temp != NULL; temp = temp->next) - bezierPatchPrint(temp); -} - -void bezierPatchEval(bezierPatch *b, float u, float v, float ret[]) -{ - if( u >= b->umin && u<= b->umax - && v >= b->vmin && v<= b->vmax) - { - - bezierSurfEval(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret); - - } - else if(b->next != NULL) - bezierPatchEval(b->next, u,v, ret); - else - bezierSurfEval(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret); -} - -/*the returned normal is normlized - */ -void bezierPatchEvalNormal(bezierPatch *b, float u, float v, float ret[]) -{ - bezierSurfEvalNormal(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret); - - if( u >= b->umin && u<= b->umax - && v >= b->vmin && v<= b->vmax) - { - bezierSurfEvalNormal(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret); - } - else if(b->next != NULL) - bezierPatchEvalNormal(b->next, u,v, ret); - else - bezierSurfEvalNormal(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret); - -} - -void bezierPatchDraw(bezierPatch *bpatch, int u_reso, int v_reso) -{ - if(bpatch->dimension == 3) - glMap2f(GL_MAP2_VERTEX_3, bpatch->umin, bpatch->umax, 3*bpatch->vorder, bpatch->uorder, bpatch->vmin, bpatch->vmax,3, bpatch->vorder, (GLfloat*) bpatch->ctlpoints); - else - glMap2f(GL_MAP2_VERTEX_4, bpatch->umin, bpatch->umax, 4*bpatch->vorder, bpatch->uorder, bpatch->vmin, bpatch->vmax,3, bpatch->vorder, (GLfloat*) bpatch->ctlpoints); - - glMapGrid2f(u_reso, bpatch->umin, bpatch->umax, - v_reso, bpatch->vmin, bpatch->vmax); - glEvalMesh2(GL_LINE, 0, u_reso, 0, v_reso); -} - -void bezierPatchListDraw(bezierPatch *list, int u_reso, int v_reso) -{ - bezierPatch *temp; -glEnable(GL_LIGHTING); -glEnable(GL_LIGHT0); -glEnable(GL_MAP2_VERTEX_3); -glEnable(GL_AUTO_NORMAL); -glEnable(GL_NORMALIZE); -glColor3f(1,0,0); -#ifdef DEBUG -printf("mapmap\n"); -#endif - - - for(temp = list; temp != NULL; temp = temp->next) - bezierPatchDraw(temp, u_reso, v_reso); -} - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatch.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatch.h deleted file mode 100644 index 686d27458..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatch.h +++ /dev/null @@ -1,111 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatch.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ -*/ - -#ifndef _BEZIERPATCH_H -#define _BEZIERPATCH_H - -typedef struct bezierPatch{ - float umin, vmin, umax, vmax; - int uorder; /*order= degree + 1*/ - int vorder; - - /* - *the control points are stored in a one dimensional array. - *the surface is defined as: - * s(u,v) = sum_{i,j} P(i,j) * B_i(u) * B_j(v). - *where P(i,j) are the control points, B_i(.) are Bezier - *basis functions. - *Each control point can have dimension 3 or 4: (x,y,z,w). - *The components of P(i,j) are stored in a one dimensional - *array: - * ctlpoints[] - *in the order of: - * P[0,0], P[0,1], ..., P[0,vorder-1], - * P[1,0], P[1,1], ..., P[1,vorder-1], - * ... - * P[uorder-1,0], P[uorder-1,1], ..., P[uorder-1,vorder-1]. - */ - int dimension; - float* ctlpoints; - - /* - *in case we have to manage multiple bezierPatches. - */ - struct bezierPatch *next; - -} bezierPatch; - -#ifdef __cplusplus -extern "C" { -#endif - -bezierPatch* bezierPatchMake(float umin, float vmin, float umax, float vmax, int urder, int vorder, int dimension); - -bezierPatch* bezierPatchMake2(float umin, float vmin, float umax, float vmax, int urder, int vorder, int dimension, int ustride, int vstride, float *ctlpoints); - - -bezierPatch* bezierPatchInsert(bezierPatch *list, bezierPatch *b); - -void bezierPatchDelete(bezierPatch *b); - -void bezierPatchDeleteList(bezierPatch *b); - -void bezierPatchPrint(bezierPatch *b); - -void bezierPatchPrintList(bezierPatch *list); - -void bezierPatchEval(bezierPatch *b, float u, float v, float ret[]); - -void bezierPatchEvalNormal(bezierPatch *b, float u, float v, float retNormal[]); - -void bezierPatchEval(bezierPatch *b, float u, float v, float ret[]); - -void bezierPatchEvalNormal(bezierPatch *b, float u, float v, float ret[]); - - -void bezierPatchDraw(bezierPatch *bpatch, int u_reso, int v_reso); - -void bezierPatchListDraw(bezierPatch *list, int u_reso, int v_reso); - -#ifdef __cplusplus -} -#endif - - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatchMesh.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatchMesh.cc deleted file mode 100644 index c15ac346e..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatchMesh.cc +++ /dev/null @@ -1,613 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatchMesh.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ -*/ - -#include "gluos.h" -#include -#include -#include -#include -#include "bezierEval.h" -#include "bezierPatchMesh.h" - -static int isDegenerate(float A[2], float B[2], float C[2]); - -void drawStrips(float *vertex_array, float *normal_array, int *length_array, GLenum *type_array, int num_strips) -{ - int i,j,k; - k=0; - /*k is the index of the first component of the current vertex*/ - for(i=0; inext) - { - bezierPatchMeshDelDeg(temp); - } -} - -void bezierPatchMeshListDelete(bezierPatchMesh *list) -{ - if(list == NULL) return; - bezierPatchMeshListDelete(list->next); - bezierPatchMeshDelete(list); -} - - - - -bezierPatchMesh* bezierPatchMeshListReverse(bezierPatchMesh* list) -{ - bezierPatchMesh* ret=NULL; - bezierPatchMesh* temp; - bezierPatchMesh* nextone; - for(temp = list; temp != NULL; temp = nextone) - { - nextone = temp->next; - ret=bezierPatchMeshListInsert(ret, temp); - } - return ret; -} - -/*maptype is either GL_MAP2_VERTEX_3 or GL_MAP2_VERTEX_4 - */ -bezierPatchMesh *bezierPatchMeshMake(int maptype, float umin, float umax, int ustride, int uorder, float vmin, float vmax, int vstride, int vorder, float *ctlpoints, int size_UVarray, int size_length_array) -{ - int i,j,k; - int dimension; - int the_ustride; - int the_vstride; - - bezierPatchMesh *ret = (bezierPatchMesh*) malloc(sizeof(bezierPatchMesh)); - assert(ret); - - ret->bpatch = NULL; - ret->bpatch_normal = NULL; - ret->bpatch_color = NULL; - ret->bpatch_texcoord = NULL; - - if(maptype == GL_MAP2_VERTEX_3) dimension = 3; - else if (maptype==GL_MAP2_VERTEX_4) dimension = 4; - else { - fprintf(stderr, "error in inMap2f, maptype=%i is wrong, maptype,map is invalid\n", maptype); - return NULL; - } - - ret->bpatch = bezierPatchMake(umin, vmin, umax, vmax, uorder, vorder, dimension); - /*copy the control points there*/ - the_ustride = vorder * dimension; - the_vstride = dimension; - for(i=0; ibpatch->ctlpoints[i * the_ustride + j*the_vstride+k] = ctlpoints[i*ustride+j*vstride+k]; - - - ret->size_UVarray = size_UVarray; - ret->size_length_array = size_length_array; - ret->UVarray = (float*) malloc(sizeof(float) * size_UVarray); - assert(ret->UVarray); - ret->length_array = (int *)malloc(sizeof(int) * size_length_array); - assert(ret->length_array); - ret->type_array = (GLenum *)malloc(sizeof(GLenum) * size_length_array); - assert(ret->type_array); - - ret->index_UVarray = 0; - ret->index_length_array = 0; - - ret->vertex_array = NULL; - ret->normal_array = NULL; - ret->color_array = NULL; - ret->texcoord_array = NULL; - - ret->next = NULL; - return ret; -} - -bezierPatchMesh *bezierPatchMeshMake2(int size_UVarray, int size_length_array) -{ - bezierPatchMesh *ret = (bezierPatchMesh*) malloc(sizeof(bezierPatchMesh)); - assert(ret); - - ret->bpatch = NULL; - ret->bpatch_normal = NULL; - ret->bpatch_color = NULL; - ret->bpatch_texcoord = NULL; - - ret->size_UVarray = size_UVarray; - ret->size_length_array = size_length_array; - ret->UVarray = (float*) malloc(sizeof(float) * size_UVarray); - assert(ret->UVarray); - ret->length_array = (int *)malloc(sizeof(int) * size_length_array); - assert(ret->length_array); - ret->type_array = (GLenum *)malloc(sizeof(GLenum) * size_length_array); - assert(ret->type_array); - - ret->index_UVarray = 0; - ret->index_length_array = 0; - - ret->vertex_array = NULL; - ret->normal_array = NULL; - ret->color_array = NULL; - ret->texcoord_array = NULL; - - ret->next = NULL; - return ret; -} - -void bezierPatchMeshPutPatch(bezierPatchMesh *bpm, int maptype, float umin, float umax, int ustride, int uorder, float vmin, float vmax, int vstride, int vorder, float *ctlpoints) -{ - switch(maptype){ - case GL_MAP2_VERTEX_3: - bpm->bpatch = bezierPatchMake2(umin, vmin, umax, vmax, uorder, vorder, 3, ustride, vstride, ctlpoints); - break; - case GL_MAP2_VERTEX_4: - bpm->bpatch = bezierPatchMake2(umin, vmin, umax, vmax, uorder, vorder, 4,ustride, vstride, ctlpoints ); - break; - case GL_MAP2_NORMAL: - bpm->bpatch_normal = bezierPatchMake2(umin, vmin, umax, vmax, uorder, vorder, 3, ustride, vstride, ctlpoints); - break; - case GL_MAP2_INDEX: - bpm->bpatch_color = bezierPatchMake2(umin, vmin, umax, vmax, uorder, vorder, 1, ustride, vstride, ctlpoints); - break; - case GL_MAP2_COLOR_4: - bpm->bpatch_color = bezierPatchMake2(umin, vmin, umax, vmax, uorder, vorder, 4, ustride, vstride, ctlpoints); - break; - case GL_MAP2_TEXTURE_COORD_1: - bpm->bpatch_texcoord = bezierPatchMake2(umin, vmin, umax, vmax, uorder, vorder, 1, ustride, vstride, ctlpoints); - break; - case GL_MAP2_TEXTURE_COORD_2: - bpm->bpatch_texcoord = bezierPatchMake2(umin, vmin, umax, vmax, uorder, vorder, 2, ustride, vstride, ctlpoints); - break; - case GL_MAP2_TEXTURE_COORD_3: - bpm->bpatch_texcoord = bezierPatchMake2(umin, vmin, umax, vmax, uorder, vorder, 3, ustride, vstride, ctlpoints); - break; - case GL_MAP2_TEXTURE_COORD_4: - bpm->bpatch_texcoord = bezierPatchMake2(umin, vmin, umax, vmax, uorder, vorder, 4, ustride, vstride, ctlpoints); - break; - default: - fprintf(stderr, "error in bezierPatchMeshPutPatch, maptype=%i is wrong, maptype,map is invalid\n", maptype); - } -} - - -/*delete everything including the arrays. So if you want to output the - *pointers of the arrays, you should not use this function to deallocate space. - *you should dealocate manually - */ -void bezierPatchMeshDelete(bezierPatchMesh *bpm) -{ - if(bpm->bpatch != NULL) - bezierPatchDelete(bpm->bpatch); - if(bpm->bpatch_normal != NULL) - bezierPatchDelete(bpm->bpatch_normal); - if(bpm->bpatch_color != NULL) - bezierPatchDelete(bpm->bpatch_color); - if(bpm->bpatch_texcoord != NULL) - bezierPatchDelete(bpm->bpatch_texcoord); - - free(bpm->UVarray); - free(bpm->length_array); - free(bpm->vertex_array); - free(bpm->normal_array); - free(bpm->type_array); - free(bpm); -} - -/*begin a strip - *type is the primitive type: - */ -void bezierPatchMeshBeginStrip(bezierPatchMesh *bpm, GLenum type) -{ - bpm->counter = 0; - bpm->type = type; -} - -/*signal the end of the current strip*/ -void bezierPatchMeshEndStrip(bezierPatchMesh *bpm) -{ - int i; - - /*if there are no vertices in this strip, then nothing needs to be done*/ - if(bpm->counter == 0) return; - - /*if the length_array is full, it should be expanded*/ - if(bpm->index_length_array >= bpm->size_length_array) - { - int *temp = (int*) malloc(sizeof(int) * (bpm->size_length_array*2 + 1)); - assert(temp); - GLenum *temp_type = (GLenum*) malloc(sizeof(GLenum) * (bpm->size_length_array*2 + 1)); - assert(temp_type); - /*update the size*/ - bpm->size_length_array = bpm->size_length_array*2 + 1; - - /*copy*/ - for(i=0; iindex_length_array; i++) - { - temp[i] = bpm->length_array[i]; - temp_type[i] = bpm->type_array[i]; - } - - /*deallocate old array*/ - free(bpm->length_array); - free(bpm->type_array); - - /*point to the new array which is twice as bigger*/ - bpm->length_array = temp; - bpm->type_array = temp_type; - } - bpm->type_array[bpm->index_length_array] = bpm->type; - bpm->length_array[bpm->index_length_array++] = bpm->counter; - -} - -/*insert (u,v) */ -void bezierPatchMeshInsertUV(bezierPatchMesh *bpm, float u, float v) -{ - int i; - /*if the UVarray is full, it should be expanded*/ - if(bpm->index_UVarray+1 >= bpm->size_UVarray) - { - float *temp = (float*) malloc(sizeof(float) * (bpm->size_UVarray * 2 + 2)); - assert(temp); - - /*update the size*/ - bpm->size_UVarray = bpm->size_UVarray*2 + 2; - - /*copy*/ - for(i=0; iindex_UVarray; i++) - { - temp[i] = bpm->UVarray[i]; - } - - /*deallocate old array*/ - free(bpm->UVarray); - - /*pointing to the new arrays*/ - bpm->UVarray = temp; - } - /*insert the new UV*/ - bpm->UVarray[bpm->index_UVarray] = u; - bpm->index_UVarray++; - bpm->UVarray[bpm->index_UVarray] = v; - bpm->index_UVarray++; - - /*update counter: one more vertex*/ - bpm->counter++; - - -} - -void bezierPatchMeshPrint(bezierPatchMesh *bpm) -{ - int i; - printf("the bezier patch is\n"); - bezierPatchPrint(bpm->bpatch); - printf("index_length_array= %i\n", bpm->index_length_array); - printf("size_length_array =%i\n", bpm->size_length_array); - printf("index_UVarray =%i\n", bpm->index_UVarray); - printf("size_UVarray =%i\n", bpm->size_UVarray); - printf("UVarray is\n"); - for(i=0; iindex_UVarray; i++) - printf("%f ", bpm->UVarray[i]); - - printf("length_array is\n"); - for(i=0; iindex_length_array; i++) - printf("%i ", bpm->length_array[i]); - printf("\n"); - -} - -/*insert a new patch in front of the current linked list and return the new list*/ -bezierPatchMesh* bezierPatchMeshListInsert(bezierPatchMesh* list, bezierPatchMesh* bpm) -{ - bpm->next=list; - return bpm; -} - -/*print all the patches*/ -void bezierPatchMeshListPrint(bezierPatchMesh* list) -{ - bezierPatchMesh *temp; - for(temp = list; temp != NULL; temp = temp->next) - { - bezierPatchMeshPrint(temp); - } -} - -int bezierPatchMeshListTotalStrips(bezierPatchMesh* list) -{ - int sum=0; - bezierPatchMesh *temp; - for(temp=list; temp != NULL; temp = temp->next) - { - sum += temp->index_length_array; - } - return sum; -} - -int bezierPatchMeshListTotalVert(bezierPatchMesh* list) -{ - int sum=0; - bezierPatchMesh *temp; - for(temp=list; temp != NULL; temp = temp->next) - { - sum += temp->index_UVarray; - } - return sum/2; -} - -int bezierPatchMeshListNumTriangles(bezierPatchMesh* list) -{ - int sum=0; - bezierPatchMesh* temp; - for(temp=list; temp != NULL; temp = temp->next) - { - sum += bezierPatchMeshNumTriangles(temp); - } - return sum; -} - -int bezierPatchMeshNumTriangles(bezierPatchMesh* bpm) -{ - int i; - int sum=0; - for(i=0; iindex_length_array; i++) - { - switch(bpm->type_array[i]) - { - case GL_TRIANGLES: - sum += bpm->length_array[i]/3; - break; - case GL_TRIANGLE_FAN: - if(bpm->length_array[i] > 2) - sum += bpm->length_array[i]-2; - break; - case GL_TRIANGLE_STRIP: - if(bpm->length_array[i] > 2) - sum += bpm->length_array[i]-2; - break; - case GL_QUAD_STRIP: - if(bpm->length_array[i]>2) - sum += (bpm->length_array[i]-2); - break; - default: - fprintf(stderr,"error in bezierPatchMeshListNumTriangles, type invalid\n"); - } - } - return sum; -} - -/*delete degenerate triangles*/ -void bezierPatchMeshDelDeg(bezierPatchMesh* bpm) -{ - if(bpm == NULL) return; - int i,j,k; - int *new_length_array; - GLenum *new_type_array; - int index_new_length_array; - float *new_UVarray; - int index_new_UVarray; - - new_length_array = (int*)malloc(sizeof(int) * bpm->index_length_array); - assert(new_length_array); - new_type_array = (GLenum*)malloc(sizeof(GLenum) * bpm->index_length_array); - assert(new_length_array); - new_UVarray = (float*) malloc(sizeof(float) * bpm->index_UVarray); - assert(new_UVarray); - - index_new_length_array = 0; - index_new_UVarray=0; - k=0; - for(i=0; iindex_length_array; i++){ - - /*(if not degenerate, we have to copy*/ - if( (bpm->length_array[i] != 3) || (!isDegenerate(bpm->UVarray+k, bpm->UVarray+k+2, bpm->UVarray+k+4))) - { - for(j=0; j<2* bpm->length_array[i]; j++) - new_UVarray[index_new_UVarray++] = bpm->UVarray[k++]; - - new_length_array[index_new_length_array] = bpm->length_array[i]; - new_type_array[index_new_length_array] = bpm->type_array[i]; - index_new_length_array++; - } - else - { - k += 6; - } - } - free(bpm->UVarray); - free(bpm->length_array); - free(bpm->type_array); - bpm->UVarray=new_UVarray; - bpm->length_array=new_length_array; - bpm->type_array=new_type_array; - bpm->index_UVarray = index_new_UVarray; - bpm->index_length_array = index_new_length_array; - -} - -/*(u,v) to XYZ - *the xyz and normals are stored in vertex_array, - *and normal_array. the spaces of both are allocated here - */ -void bezierPatchMeshEval(bezierPatchMesh* bpm) -{ - int i,j,k,l; - float u,v; - float u0 = bpm->bpatch->umin; - float u1 = bpm->bpatch->umax; - int uorder = bpm->bpatch->uorder; - float v0 = bpm->bpatch->vmin; - float v1 = bpm->bpatch->vmax; - int vorder = bpm->bpatch->vorder; - int dimension = bpm->bpatch->dimension; - int ustride = dimension * vorder; - int vstride = dimension; - float *ctlpoints = bpm->bpatch->ctlpoints; - - bpm->vertex_array = (float*) malloc(sizeof(float)* (bpm->index_UVarray/2) * 3); - assert(bpm->vertex_array); - bpm->normal_array = (float*) malloc(sizeof(float)* (bpm->index_UVarray/2) * 3); - assert(bpm->normal_array); - - k=0; - l=0; - for(i=0; iindex_length_array; i++) - { - for(j=0; jlength_array[i]; j++) - { - u = bpm->UVarray[k]; - v = bpm->UVarray[k+1]; - bezierSurfEval(u0,u1,uorder, v0, v1, vorder, dimension, ctlpoints, ustride, vstride, u,v, bpm->vertex_array+l); - bezierSurfEvalNormal(u0,u1,uorder, v0, v1, vorder, dimension, ctlpoints, ustride, vstride, u,v, bpm->normal_array+l); - k += 2; - l += 3; - } - } -} - -void bezierPatchMeshListEval(bezierPatchMesh* list) -{ - bezierPatchMesh* temp; - for(temp = list; temp != NULL; temp = temp->next) - { - bezierPatchMeshEval(temp); - } -} - -void bezierPatchMeshDraw(bezierPatchMesh* bpm) -{ - int i,j,k; - k=0; - /*k is the index of the first component of the current vertex*/ - for(i=0; iindex_length_array; i++) - { - glBegin(bpm->type_array[i]); - for(j=0; jlength_array[i]; j++) - { - glNormal3fv(bpm->normal_array+k); - glVertex3fv(bpm->vertex_array+k); - k+= 3; - } - glEnd(); - } -} - -void bezierPatchMeshListDraw(bezierPatchMesh* list) -{ - bezierPatchMesh* temp; - for(temp = list; temp != NULL; temp = temp->next) - { - bezierPatchMeshDraw(temp); - } -} - -void bezierPatchMeshListCollect(bezierPatchMesh* list, float **vertex_array, float **normal_array, int **length_array, GLenum **type_array, int *num_strips) -{ - int i,j,k,l; - bezierPatchMesh *temp; - int total_num_vertices = bezierPatchMeshListTotalVert(list); - (*vertex_array) = (float *) malloc(sizeof(float) * total_num_vertices*3); - assert(*vertex_array); - (*normal_array) = (float *) malloc(sizeof(float) * total_num_vertices*3); - assert(*normal_array); - - *num_strips = bezierPatchMeshListTotalStrips(list); - - *length_array = (int*) malloc(sizeof(int) * (*num_strips)); - assert(*length_array); - - *type_array = (GLenum*) malloc(sizeof(GLenum) * (*num_strips)); - assert(*type_array); - - k=0; - l=0; - for(temp = list; temp != NULL; temp = temp->next) - { - int x=0; - for(i=0; iindex_length_array; i++) - { - for(j=0; jlength_array[i]; j++) - { - (*vertex_array)[k] = temp->vertex_array[x]; - (*vertex_array)[k+1] = temp->vertex_array[x+1]; - (*vertex_array)[k+2] = temp->vertex_array[x+2]; - - (*normal_array)[k] = temp->normal_array[x]; - (*normal_array)[k+1] = temp->normal_array[x+1]; - (*normal_array)[k+2] = temp->normal_array[x+2]; - - x += 3; - k += 3; - } - (*type_array)[l] = temp->type_array[i]; - (*length_array)[l++] = temp->length_array[i]; - } - } -} - - - -static int isDegenerate(float A[2], float B[2], float C[2]) -{ - if( (A[0] == B[0] && A[1]==B[1]) || - (A[0] == C[0] && A[1]==C[1]) || - (B[0] == C[0] && B[1]==C[1]) - ) - return 1; - else - return 0; -} - - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatchMesh.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatchMesh.h deleted file mode 100644 index 384d02f41..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatchMesh.h +++ /dev/null @@ -1,127 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/bezierPatchMesh.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ -*/ - -#ifndef _BEZIERPATCHMESH_H -#define _BEZIERPATCHMESH_H - -#include "bezierPatch.h" - -typedef struct bezierPatchMesh{ - bezierPatch *bpatch; /*vertex*/ - bezierPatch *bpatch_normal; - bezierPatch *bpatch_texcoord; /*s,t,r,q*/ - bezierPatch *bpatch_color; /*RGBA*/ - - float *UVarray; /*all UV components of all vertices of all strips*/ - int *length_array; /*[i] is the number of vertices in the ith strip*/ - GLenum *type_array; /*[i] is the type of the ith primitive*/ - - /*to support dynamic insertion*/ - int size_UVarray; - int index_UVarray; - int size_length_array; - int index_length_array; - - int counter; /*track the current strip size*/ - GLenum type; /*track the current type: 0: GL_TRIANGLES, 1: GL_TRIANGLE_STRIP*/ - - /*we eventually want to evaluate from (u,v) to (x,y,z) and draw them*/ - float *vertex_array; /*each vertex contains three components*/ - float *normal_array; /*each normal contains three components*/ - float *color_array; - float *texcoord_array; - - /*in case we need a linked list*/ - struct bezierPatchMesh *next; -} bezierPatchMesh; - -#ifdef __cplusplus -extern "C" { -#endif - - - -bezierPatchMesh *bezierPatchMeshMake(int maptype, float umin, float umax, int ustride, int uorder, float vmin, float vmax, int vstride, int vorder, float *ctlpoints, int size_UVarray, int size_length_array); - -/*initilize patches to be null*/ -bezierPatchMesh *bezierPatchMeshMake2(int size_UVarray, int size_length_array); - -void bezierPatchMeshPutPatch(bezierPatchMesh *bpm, int maptype, float umin, float umax, int ustride, int uorder, float vmin, float vmax, int vstride, int vorder, float *ctlpoints); - -void bezierPatchMeshDelete(bezierPatchMesh *bpm); - -void bezierPatchMeshBeginStrip(bezierPatchMesh *bpm, GLenum type); - -void bezierPatchMeshEndStrip(bezierPatchMesh *bpm); - -void bezierPatchMeshInsertUV(bezierPatchMesh *bpm, float u, float v); - -void bezierPatchMeshPrint(bezierPatchMesh *bpm); - -bezierPatchMesh* bezierPatchMeshListInsert(bezierPatchMesh* list, bezierPatchMesh* bpm); - -void bezierPatchMeshListPrint(bezierPatchMesh* list); - -int bezierPatchMeshListTotalStrips(bezierPatchMesh* list); - -int bezierPatchMeshListTotalVert(bezierPatchMesh* list); -int bezierPatchMeshNumTriangles(bezierPatchMesh* bpm); -int bezierPatchMeshListNumTriangles(bezierPatchMesh* list); - -void bezierPatchMeshDelDeg(bezierPatchMesh* bpm); - - -void bezierPatchMeshEval(bezierPatchMesh* bpm); - -void bezierPatchMeshDraw(bezierPatchMesh* bpm); - -void bezierPatchMeshListDraw(bezierPatchMesh* list); -void bezierPatchMeshListEval(bezierPatchMesh* list); -void bezierPatchMeshListCollect(bezierPatchMesh* list, float **vertex_array, float **normal_array, int **length_array, GLenum **type_array, int *num_strips); - -void bezierPatchMeshListDelDeg(bezierPatchMesh* list); -void bezierPatchMeshListDelete(bezierPatchMesh *list); -bezierPatchMesh* bezierPatchMeshListReverse(bezierPatchMesh* list); -void drawStrips(float *vertex_array, float *normal_array, int *length_array, GLenum *type_array, int num_strips); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glcurveval.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glcurveval.cc deleted file mode 100644 index b78e3acc1..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glcurveval.cc +++ /dev/null @@ -1,400 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ -/* $XFree86$ */ - -/* - * glcurveval.c++ - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glcurveval.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ - -/* Polynomial Evaluator Interface */ - -#include "gluos.h" -#include "glimports.h" -#include "glrenderer.h" -#include "glcurveval.h" -#include "nurbsconsts.h" - -OpenGLCurveEvaluator::OpenGLCurveEvaluator(void) -{ - //no default callback functions - beginCallBackN = NULL; - endCallBackN = NULL; - vertexCallBackN = NULL; - normalCallBackN = NULL; - colorCallBackN = NULL; - texcoordCallBackN = NULL; - beginCallBackData = NULL; - endCallBackData = NULL; - vertexCallBackData = NULL; - normalCallBackData = NULL; - colorCallBackData = NULL; - texcoordCallBackData = NULL; - - userData = NULL; - - vertex_flag = 0; - normal_flag = 0; - color_flag = 0; - texcoord_flag = 0; - - em_vertex.uprime = -1.0; - em_normal.uprime = -1.0; - em_color.uprime = -1.0; - em_texcoord.uprime = -1.0; -} - -OpenGLCurveEvaluator::~OpenGLCurveEvaluator(void) -{ -} - -/* added nonsense to avoid the warning messages at compile time */ -void -OpenGLCurveEvaluator::addMap(CurveMap *m) -{ - m = m; -} - -void -OpenGLCurveEvaluator::range1f(long type, REAL *from, REAL *to) -{ - type = type; - from = from; - to = to; -} - -void -OpenGLCurveEvaluator::domain1f(REAL ulo, REAL uhi) -{ - ulo = ulo; - uhi = uhi; -} - -void -OpenGLCurveEvaluator::bgnline(void) -{ - if(output_triangles) - beginCallBack(GL_LINE_STRIP, userData); - else - glBegin((GLenum) GL_LINE_STRIP); -} - -void -OpenGLCurveEvaluator::endline(void) -{ - if(output_triangles) - endCallBack(userData); - else - glEnd(); -} - -/*--------------------------------------------------------------------------- - * disable - turn off a curve map - *--------------------------------------------------------------------------- - */ -void -OpenGLCurveEvaluator::disable(long type) -{ - glDisable((GLenum) type); -} - -/*--------------------------------------------------------------------------- - * enable - turn on a curve map - *--------------------------------------------------------------------------- - */ -void -OpenGLCurveEvaluator::enable(long type) -{ - glEnable((GLenum) type); -} - -/*------------------------------------------------------------------------- - * mapgrid1f - define a lattice of points with origin and offset - *------------------------------------------------------------------------- - */ -void -OpenGLCurveEvaluator::mapgrid1f(long nu, REAL u0, REAL u1) -{ - if(output_triangles) - { - global_grid_u0 = (int)u0; - global_grid_u1 = (int)u1; - global_grid_nu = nu; - } - else - glMapGrid1f((GLint) nu, (GLfloat) u0, (GLfloat) u1); -} - -/*------------------------------------------------------------------------- - * bgnmap1 - preamble to curve definition and evaluations - *------------------------------------------------------------------------- - */ -void -OpenGLCurveEvaluator::bgnmap1f(long) -{ - if(output_triangles) - { - //initialized so that no maps are set initially - vertex_flag = 0; - normal_flag = 0; - color_flag = 0; - texcoord_flag = 0; - //no need to worry about gl states when doing callback - } - else - glPushAttrib((GLbitfield) GL_EVAL_BIT); -} - -/*------------------------------------------------------------------------- - * endmap1 - postamble to a curve map - *------------------------------------------------------------------------- - */ -void -OpenGLCurveEvaluator::endmap1f(void) -{ - if(output_triangles) - { - - } - else - glPopAttrib(); -} - -/*------------------------------------------------------------------------- - * map1f - pass a desription of a curve map - *------------------------------------------------------------------------- - */ -void -OpenGLCurveEvaluator::map1f( - long type, /* map type */ - REAL ulo, /* lower parametric bound */ - REAL uhi, /* upper parametric bound */ - long stride, /* distance to next point in REALS */ - long order, /* parametric order */ - REAL *pts /* control points */ -) -{ - if(output_triangles) - { - int dimension; - int which; - switch(type){ - case GL_MAP1_VERTEX_3: - which = 0; - dimension = 3; - break; - case GL_MAP1_VERTEX_4: - which=0; - dimension = 4; - break; - case GL_MAP1_INDEX: - which=2; - dimension = 1; - break; - case GL_MAP1_COLOR_4: - which=2; - dimension = 4; - break; - case GL_MAP1_NORMAL: - which=1; - dimension = 3; - break; - case GL_MAP1_TEXTURE_COORD_1: - which=3; - dimension = 1; - break; - case GL_MAP1_TEXTURE_COORD_2: - which=3; - dimension = 2; - break; - - case GL_MAP1_TEXTURE_COORD_3: - which=3; - dimension = 3; - break; - case GL_MAP1_TEXTURE_COORD_4: - which=3; - dimension = 4; - break; - } - inMap1f(which, dimension, ulo, uhi, stride, order, pts); - } - else - glMap1f((GLenum) type, (GLfloat) ulo, (GLfloat) uhi, (GLint) stride, - (GLint) order, (const GLfloat *) pts); -} - -/*------------------------------------------------------------------------- - * mapmesh1f - evaluate a mesh of points on lattice - *------------------------------------------------------------------------- - */ -void OpenGLCurveEvaluator::mapmesh1f(long style, long from, long to) -{ - if(output_triangles) - { - inMapMesh1f((int) from, (int) to); - } - else - { - switch(style) { - default: - case N_MESHFILL: - case N_MESHLINE: - glEvalMesh1((GLenum) GL_LINE, (GLint) from, (GLint) to); - break; - case N_MESHPOINT: - glEvalMesh1((GLenum) GL_POINT, (GLint) from, (GLint) to); - break; - } - } -} - -/*------------------------------------------------------------------------- - * evalpoint1i - evaluate a point on a curve - *------------------------------------------------------------------------- - */ -void OpenGLCurveEvaluator::evalpoint1i(long i) -{ - glEvalPoint1((GLint) i); -} - -/*------------------------------------------------------------------------- - * evalcoord1f - evaluate a point on a curve - *------------------------------------------------------------------------- - */ -void OpenGLCurveEvaluator::evalcoord1f(long, REAL u) -{ - glEvalCoord1f((GLfloat) u); -} - -void -OpenGLCurveEvaluator::putCallBack(GLenum which, GLvoid (GLAPIENTRY *fn)(...)) -{ - switch(which) - { - case GLU_NURBS_BEGIN: - beginCallBackN = (void (GLAPIENTRY *) (GLenum)) fn; - break; - case GLU_NURBS_END: - endCallBackN = (void (GLAPIENTRY *) (void)) fn; - break; - case GLU_NURBS_VERTEX: - vertexCallBackN = (void (GLAPIENTRY *) (const GLfloat*)) fn; - break; - case GLU_NURBS_NORMAL: - normalCallBackN = (void (GLAPIENTRY *) (const GLfloat*)) fn; - break; - case GLU_NURBS_COLOR: - colorCallBackN = (void (GLAPIENTRY *) (const GLfloat*)) fn; - break; - case GLU_NURBS_TEXTURE_COORD: - texcoordCallBackN = (void (GLAPIENTRY *) (const GLfloat*)) fn; - break; - case GLU_NURBS_BEGIN_DATA: - beginCallBackData = (void (GLAPIENTRY *) (GLenum, void*)) fn; - break; - case GLU_NURBS_END_DATA: - endCallBackData = (void (GLAPIENTRY *) (void*)) fn; - break; - case GLU_NURBS_VERTEX_DATA: - vertexCallBackData = (void (GLAPIENTRY *) (const GLfloat*, void*)) fn; - break; - case GLU_NURBS_NORMAL_DATA: - normalCallBackData = (void (GLAPIENTRY *) (const GLfloat*, void*)) fn; - break; - case GLU_NURBS_COLOR_DATA: - colorCallBackData = (void (GLAPIENTRY *) (const GLfloat*, void*)) fn; - break; - case GLU_NURBS_TEXTURE_COORD_DATA: - texcoordCallBackData = (void (GLAPIENTRY *) (const GLfloat*, void*)) fn; - break; - } -} - -void -OpenGLCurveEvaluator::beginCallBack(GLenum which, void *data) -{ - if(beginCallBackData) - beginCallBackData(which, data); - else if(beginCallBackN) - beginCallBackN(which); -} - -void -OpenGLCurveEvaluator::endCallBack(void *data) -{ - if(endCallBackData) - endCallBackData(data); - else if(endCallBackN) - endCallBackN(); -} - -void -OpenGLCurveEvaluator::vertexCallBack(const GLfloat *vert, void* data) -{ - if(vertexCallBackData) - vertexCallBackData(vert, data); - else if(vertexCallBackN) - vertexCallBackN(vert); -} - - -void -OpenGLCurveEvaluator::normalCallBack(const GLfloat *normal, void* data) -{ - if(normalCallBackData) - normalCallBackData(normal, data); - else if(normalCallBackN) - normalCallBackN(normal); -} - -void -OpenGLCurveEvaluator::colorCallBack(const GLfloat *color, void* data) -{ - if(colorCallBackData) - colorCallBackData(color, data); - else if(colorCallBackN) - colorCallBackN(color); -} - -void -OpenGLCurveEvaluator::texcoordCallBack(const GLfloat *texcoord, void* data) -{ - if(texcoordCallBackData) - texcoordCallBackData(texcoord, data); - else if(texcoordCallBackN) - texcoordCallBackN(texcoord); -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glcurveval.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glcurveval.h deleted file mode 100644 index 79cd79479..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glcurveval.h +++ /dev/null @@ -1,158 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * glcurveval.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glcurveval.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __gluglcurveval_h_ -#define __gluglcurveval_h_ - -#include "gluos.h" -#include -#include "basiccrveval.h" - -class CurveMap; - -/*for internal evaluator callback stuff*/ -#ifndef IN_MAX_BEZIER_ORDER -#define IN_MAX_BEZIER_ORDER 40 /*XXX should be bigger than machine order*/ -#endif - -#ifndef IN_MAX_DIMENSION -#define IN_MAX_DIMENSION 4 -#endif - -typedef struct curveEvalMachine{ - REAL uprime; //cached previously evaluated uprime - int k; //the dimension - REAL u1; - REAL u2; - int ustride; - int uorder; - REAL ctlpoints[IN_MAX_BEZIER_ORDER*IN_MAX_DIMENSION]; - REAL ucoeff[IN_MAX_BEZIER_ORDER];//cache the polynomial values -} curveEvalMachine; - -class OpenGLCurveEvaluator : public BasicCurveEvaluator { -public: - OpenGLCurveEvaluator(void); - ~OpenGLCurveEvaluator(void); - void range1f(long, REAL *, REAL *); - void domain1f(REAL, REAL); - void addMap(CurveMap *); - - void enable(long); - void disable(long); - void bgnmap1f(long); - void map1f(long, REAL, REAL, long, long, REAL *); - void mapgrid1f(long, REAL, REAL); - void mapmesh1f(long, long, long); - void evalpoint1i(long); - void evalcoord1f(long, REAL); - void endmap1f(void); - - void bgnline(void); - void endline(void); - - void put_vertices_call_back(int flag) - { - output_triangles = flag; - } - void putCallBack(GLenum which, GLvoid (GLAPIENTRY *fn)(...)); - void set_callback_userData(void *data) - { - userData = data; - } - -/*------------------begin for curveEvalMachine------------*/ -curveEvalMachine em_vertex; -curveEvalMachine em_normal; -curveEvalMachine em_color; -curveEvalMachine em_texcoord; -int vertex_flag; //whether there is a vertex map or not -int normal_flag; //whether there is a normal map or not -int color_flag; //whether there is a color map or not -int texcoord_flag; //whether there is a texture map or not - -int global_grid_u0; -int global_grid_u1; -int global_grid_nu; - -void inMap1f(int which, //0: vert, 1: norm, 2: color, 3: tex - int dimension, - REAL ulower, - REAL uupper, - int ustride, - int uorder, - REAL *ctlpoints); - -void inPreEvaluate(int order, REAL vprime, REAL *coeff); -void inDoDomain1(curveEvalMachine *em, REAL u, REAL *retPoint); -void inDoEvalCoord1(REAL u); -void inMapMesh1f(int umin, int umax); - -void (GLAPIENTRY *beginCallBackN) (GLenum type); -void (GLAPIENTRY *endCallBackN) (void); -void (GLAPIENTRY *vertexCallBackN) (const GLfloat *vert); -void (GLAPIENTRY *normalCallBackN) (const GLfloat *normal); -void (GLAPIENTRY *colorCallBackN) (const GLfloat *color); -void (GLAPIENTRY *texcoordCallBackN) (const GLfloat *texcoord); - -void (GLAPIENTRY *beginCallBackData) (GLenum type, void* data); -void (GLAPIENTRY *endCallBackData) (void* data); -void (GLAPIENTRY *vertexCallBackData) (const GLfloat *vert, void* data); -void (GLAPIENTRY *normalCallBackData) (const GLfloat *normal, void* data); -void (GLAPIENTRY *colorCallBackData) (const GLfloat *color, void* data); -void (GLAPIENTRY *texcoordCallBackData) (const GLfloat *texcoord, void* data); - -void* userData; //the opaque pointer for Data callback functions -void beginCallBack(GLenum type, void* data); -void endCallBack(void* data); -void vertexCallBack(const GLfloat *vert, void *data); -void normalCallBack(const GLfloat *normal, void* data); -void colorCallBack(const GLfloat *color, void* data); -void texcoordCallBack(const GLfloat *texcoord, void* data); - - -/*------------------end for curveEvalMachine------------*/ - -private: - int output_triangles; //true 1; false 0 -}; - -#endif /* __gluglcurveval_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glimports.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glimports.h deleted file mode 100644 index 167ac8473..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glimports.h +++ /dev/null @@ -1,48 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * glimports.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glimports.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __gluimports_h_ -#define __gluimports_h_ - -#include "mystdlib.h" -#include "mystdio.h" - -#endif /* __gluimports_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glinterface.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glinterface.cc deleted file mode 100644 index 0fa675282..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glinterface.cc +++ /dev/null @@ -1,468 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -*/ -/* $XFree86: xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glinterface.cc,v 1.3 2001/04/03 02:18:40 dawes Exp $ */ - -#include "gluos.h" -#include -#include -#include -#include "glimports.h" -#include "glrenderer.h" -#include "nurbsconsts.h" - -/*#define DOWN_LOAD_NURBS*/ -#ifdef DOWN_LOAD_NURBS - -#include "oglTrimNurbs.h" -static int surfcount = 0; -static oglTrimNurbs* otn = NULL; -nurbSurf* tempNurb = NULL; -oglTrimLoops* tempTrim = NULL; -#endif - - -//for LOD -extern "C" {void glu_LOD_eval_list(GLUnurbs *nurb, int level);} - -void glu_LOD_eval_list(GLUnurbs *nurb, int level) -{ - nurb->LOD_eval_list(level); -} - -GLUnurbs * GLAPIENTRY -gluNewNurbsRenderer(void) -{ - GLUnurbs *t; - - t = new GLUnurbs(); - return t; -} - -void GLAPIENTRY -gluDeleteNurbsRenderer(GLUnurbs *r) -{ - delete r; -} - -extern "C" -void GLAPIENTRY - -gluDeleteNurbsTessellatorEXT(GLUnurbsObj *r) -{ - delete r; -} - -void GLAPIENTRY -gluBeginSurface(GLUnurbs *r) -{ -#ifdef DOWN_LOAD_NURBS -surfcount++; -tempTrim = OTL_make(10,10); -#endif - r->bgnsurface(0); -} - -void GLAPIENTRY -gluBeginCurve(GLUnurbs *r) -{ - r->bgncurve(0); -} - -void GLAPIENTRY -gluEndCurve(GLUnurbs *r) -{ - r->endcurve(); -} - -void GLAPIENTRY -gluEndSurface(GLUnurbs *r) -{ -#ifdef DOWN_LOAD_NURBS -if(surfcount == 1) - otn = OTN_make(1); -OTN_insert(otn, tempNurb, tempTrim); -if(surfcount >= 1) -{ -#ifdef DEBUG -printf("write file\n"); -#endif -OTN_write(otn, "out.otn"); - -} -#endif - - r->endsurface(); -} - -void GLAPIENTRY -gluBeginTrim(GLUnurbs *r) -{ -#ifdef DOWN_LOAD_NURBS -OTL_bgnTrim(tempTrim); -#endif - - r->bgntrim(); -} - -void GLAPIENTRY -gluEndTrim(GLUnurbs *r) -{ -#ifdef DOWN_LOAD_NURBS -OTL_endTrim(tempTrim); -#endif - r->endtrim(); -} - -void GLAPIENTRY -gluPwlCurve(GLUnurbs *r, GLint count, INREAL array[], - GLint stride, GLenum type) -{ -#ifdef DOWN_LOAD_NURBS -OTL_pwlCurve(tempTrim, count, array, stride, type); -#endif - - int realType; - switch(type) { - case GLU_MAP1_TRIM_2: - realType = N_P2D; - break; - case GLU_MAP1_TRIM_3: - realType = N_P2DR; - break; - default: - realType = type; - break; - } - r->pwlcurve(count, array, sizeof(INREAL) * stride, realType); -} - -void GLAPIENTRY -gluNurbsCurve(GLUnurbs *r, GLint nknots, INREAL knot[], GLint stride, - INREAL ctlarray[], GLint order, GLenum type) -{ -#ifdef DOWN_LOAD_NURBS -OTL_nurbsCurve(tempTrim, nknots, knot, stride, ctlarray, order, type); -#endif - - int realType; - - switch(type) { - case GLU_MAP1_TRIM_2: - realType = N_P2D; - break; - case GLU_MAP1_TRIM_3: - realType = N_P2DR; - break; - default: - realType = type; - break; - } - - r->nurbscurve(nknots, knot, sizeof(INREAL) * stride, ctlarray, order, - realType); -} - -void GLAPIENTRY -gluNurbsSurface(GLUnurbs *r, GLint sknot_count, GLfloat *sknot, - GLint tknot_count, GLfloat *tknot, - GLint s_stride, GLint t_stride, - GLfloat *ctlarray, GLint sorder, GLint torder, - GLenum type) -{ -#ifdef DOWN_LOAD_NURBS - { - int dimension; - switch(type){ - case GL_MAP2_VERTEX_3: - dimension = 3; - break; - case GL_MAP2_VERTEX_4: - dimension = 4; - break; - default: - fprintf(stderr, "error in glinterface.c++, type no implemented\n"); - exit(1); - } -tempNurb = nurbSurfMake(sknot_count, sknot, - tknot_count, tknot, - sorder, torder, - dimension, - ctlarray, - s_stride, t_stride); - - } -#endif - - r->nurbssurface(sknot_count, sknot, tknot_count, tknot, - sizeof(INREAL) * s_stride, sizeof(INREAL) * t_stride, - ctlarray, sorder, torder, type); -} - -void GLAPIENTRY -gluLoadSamplingMatrices(GLUnurbs *r, const GLfloat modelMatrix[16], - const GLfloat projMatrix[16], - const GLint viewport[4]) -{ - r->useGLMatrices(modelMatrix, projMatrix, viewport); -} - -void GLAPIENTRY -gluNurbsProperty(GLUnurbs *r, GLenum property, GLfloat value) -{ - GLfloat nurbsValue; - - switch (property) { - case GLU_AUTO_LOAD_MATRIX: - r->setautoloadmode(value); - return; - - case GLU_CULLING: - if (value != 0.0) { - nurbsValue = N_CULLINGON; - } else { - nurbsValue = N_NOCULLING; - } - r->setnurbsproperty(GL_MAP2_VERTEX_3, N_CULLING, nurbsValue); - r->setnurbsproperty(GL_MAP2_VERTEX_4, N_CULLING, nurbsValue); - r->setnurbsproperty(GL_MAP1_VERTEX_3, N_CULLING, nurbsValue); - r->setnurbsproperty(GL_MAP1_VERTEX_4, N_CULLING, nurbsValue); - return; - - case GLU_SAMPLING_METHOD: - if (value == GLU_PATH_LENGTH) { - nurbsValue = N_PATHLENGTH; - } else if (value == GLU_PARAMETRIC_ERROR) { - nurbsValue = N_PARAMETRICDISTANCE; - } else if (value == GLU_DOMAIN_DISTANCE) { - nurbsValue = N_DOMAINDISTANCE; - r->set_is_domain_distance_sampling(1); //optimzing untrimmed case - - } else if (value == GLU_OBJECT_PARAMETRIC_ERROR) { - nurbsValue = N_OBJECTSPACE_PARA; - r->setautoloadmode( 0.0 ); - r->setSamplingMatrixIdentity(); - } else if (value == GLU_OBJECT_PATH_LENGTH) { - nurbsValue = N_OBJECTSPACE_PATH; - r->setautoloadmode( 0.0 ); - r->setSamplingMatrixIdentity(); - } else { - r->postError(GLU_INVALID_VALUE); - return; - } - - r->setnurbsproperty(GL_MAP2_VERTEX_3, N_SAMPLINGMETHOD, nurbsValue); - r->setnurbsproperty(GL_MAP2_VERTEX_4, N_SAMPLINGMETHOD, nurbsValue); - r->setnurbsproperty(GL_MAP1_VERTEX_3, N_SAMPLINGMETHOD, nurbsValue); - r->setnurbsproperty(GL_MAP1_VERTEX_4, N_SAMPLINGMETHOD, nurbsValue); - return; - - case GLU_SAMPLING_TOLERANCE: - r->setnurbsproperty(GL_MAP2_VERTEX_3, N_PIXEL_TOLERANCE, value); - r->setnurbsproperty(GL_MAP2_VERTEX_4, N_PIXEL_TOLERANCE, value); - r->setnurbsproperty(GL_MAP1_VERTEX_3, N_PIXEL_TOLERANCE, value); - r->setnurbsproperty(GL_MAP1_VERTEX_4, N_PIXEL_TOLERANCE, value); - return; - - case GLU_PARAMETRIC_TOLERANCE: - r->setnurbsproperty(GL_MAP2_VERTEX_3, N_ERROR_TOLERANCE, value); - r->setnurbsproperty(GL_MAP2_VERTEX_4, N_ERROR_TOLERANCE, value); - r->setnurbsproperty(GL_MAP1_VERTEX_3, N_ERROR_TOLERANCE, value); - r->setnurbsproperty(GL_MAP1_VERTEX_4, N_ERROR_TOLERANCE, value); - return; - - - case GLU_DISPLAY_MODE: - - if (value == GLU_FILL) { - nurbsValue = N_FILL; - } else if (value == GLU_OUTLINE_POLYGON) { - nurbsValue = N_OUTLINE_POLY; - } else if (value == GLU_OUTLINE_PATCH) { - nurbsValue = N_OUTLINE_PATCH; - } else { - r->postError(GLU_INVALID_VALUE); - return; - } - r->setnurbsproperty(N_DISPLAY, nurbsValue); - - break; - - case GLU_U_STEP: - r->setnurbsproperty(GL_MAP1_VERTEX_3, N_S_STEPS, value); - r->setnurbsproperty(GL_MAP1_VERTEX_4, N_S_STEPS, value); - r->setnurbsproperty(GL_MAP2_VERTEX_3, N_S_STEPS, value); - r->setnurbsproperty(GL_MAP2_VERTEX_4, N_S_STEPS, value); - - //added for optimizing untrimmed case - r->set_domain_distance_u_rate(value); - break; - - case GLU_V_STEP: - r->setnurbsproperty(GL_MAP1_VERTEX_3, N_T_STEPS, value); - r->setnurbsproperty(GL_MAP1_VERTEX_4, N_T_STEPS, value); - r->setnurbsproperty(GL_MAP2_VERTEX_3, N_T_STEPS, value); - r->setnurbsproperty(GL_MAP2_VERTEX_4, N_T_STEPS, value); - - //added for optimizing untrimmed case - r->set_domain_distance_v_rate(value); - break; - - case GLU_NURBS_MODE: - if(value == GLU_NURBS_RENDERER) - r->put_callbackFlag(0); - else if(value == GLU_NURBS_TESSELLATOR) - r->put_callbackFlag(1); - else - r->postError(GLU_INVALID_ENUM); - break; - - default: - r->postError(GLU_INVALID_ENUM); - return; - } -} - -void GLAPIENTRY -gluGetNurbsProperty(GLUnurbs *r, GLenum property, GLfloat *value) -{ - GLfloat nurbsValue; - - switch(property) { - case GLU_AUTO_LOAD_MATRIX: - if (r->getautoloadmode()) { - *value = GL_TRUE; - } else { - *value = GL_FALSE; - } - break; - case GLU_CULLING: - r->getnurbsproperty(GL_MAP2_VERTEX_3, N_CULLING, &nurbsValue); - if (nurbsValue == N_CULLINGON) { - *value = GL_TRUE; - } else { - *value = GL_FALSE; - } - break; - case GLU_SAMPLING_METHOD: - r->getnurbsproperty(GL_MAP2_VERTEX_3, N_SAMPLINGMETHOD, value); - if(*value == N_PATHLENGTH) - *value = GLU_PATH_LENGTH; - else if(*value == N_PARAMETRICDISTANCE) - *value = GLU_PARAMETRIC_ERROR; - else if(*value == N_DOMAINDISTANCE) - *value = GLU_DOMAIN_DISTANCE; - else if(*value == N_OBJECTSPACE_PATH) - *value = GLU_OBJECT_PATH_LENGTH; - else if(*value == N_OBJECTSPACE_PARA) - *value = GLU_OBJECT_PARAMETRIC_ERROR; - break; - case GLU_SAMPLING_TOLERANCE: - r->getnurbsproperty(GL_MAP2_VERTEX_3, N_PIXEL_TOLERANCE, value); - break; - case GLU_PARAMETRIC_TOLERANCE: - r->getnurbsproperty(GL_MAP2_VERTEX_3, N_ERROR_TOLERANCE, value); - break; - - case GLU_U_STEP: - r->getnurbsproperty(GL_MAP2_VERTEX_3, N_S_STEPS, value); - break; - case GLU_V_STEP: - r->getnurbsproperty(GL_MAP2_VERTEX_3, N_T_STEPS, value); - break; - case GLU_DISPLAY_MODE: - r->getnurbsproperty(N_DISPLAY, &nurbsValue); - if (nurbsValue == N_FILL) { - *value = GLU_FILL; - } else if (nurbsValue == N_OUTLINE_POLY) { - *value = GLU_OUTLINE_POLYGON; - } else { - *value = GLU_OUTLINE_PATCH; - } - break; - - case GLU_NURBS_MODE: - if(r->is_callback()) - *value = GLU_NURBS_TESSELLATOR; - else - *value = GLU_NURBS_RENDERER; - break; - - default: - r->postError(GLU_INVALID_ENUM); - return; - } -} - -extern "C" void GLAPIENTRY -gluNurbsCallback(GLUnurbs *r, GLenum which, GLvoid (*fn)()) -{ - switch (which) { - case GLU_NURBS_BEGIN: - case GLU_NURBS_END: - case GLU_NURBS_VERTEX: - case GLU_NURBS_NORMAL: - case GLU_NURBS_TEXTURE_COORD: - case GLU_NURBS_COLOR: - case GLU_NURBS_BEGIN_DATA: - case GLU_NURBS_END_DATA: - case GLU_NURBS_VERTEX_DATA: - case GLU_NURBS_NORMAL_DATA: - case GLU_NURBS_TEXTURE_COORD_DATA: - case GLU_NURBS_COLOR_DATA: - r->putSurfCallBack(which, (GLvoid (*)(...))fn); - break; - - case GLU_NURBS_ERROR: - r->errorCallback = (void (*)( GLenum )) fn; - break; - default: - r->postError(GLU_INVALID_ENUM); - return; - } -} - -extern "C" -void GLAPIENTRY -gluNurbsCallbackDataEXT(GLUnurbs* r, void* userData) -{ - r->setNurbsCallbackData(userData); -} - -extern "C" -void GLAPIENTRY -gluNurbsCallbackData(GLUnurbs* r, void* userData) -{ - gluNurbsCallbackDataEXT(r,userData); -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glrenderer.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glrenderer.cc deleted file mode 100644 index 810613d50..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glrenderer.cc +++ /dev/null @@ -1,303 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glrenderer.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ -*/ - -#include "gluos.h" -#include "glimports.h" -#include "glrenderer.h" - -GLUnurbs::GLUnurbs() - : NurbsTessellator(curveEvaluator, surfaceEvaluator) -{ - redefineMaps(); - defineMap(GL_MAP2_NORMAL, 0, 3); - defineMap(GL_MAP1_NORMAL, 0, 3); - defineMap(GL_MAP2_TEXTURE_COORD_1, 0, 1); - defineMap(GL_MAP1_TEXTURE_COORD_1, 0, 1); - defineMap(GL_MAP2_TEXTURE_COORD_2, 0, 2); - defineMap(GL_MAP1_TEXTURE_COORD_2, 0, 2); - defineMap(GL_MAP2_TEXTURE_COORD_3, 0, 3); - defineMap(GL_MAP1_TEXTURE_COORD_3, 0, 3); - defineMap(GL_MAP2_TEXTURE_COORD_4, 1, 4); - defineMap(GL_MAP1_TEXTURE_COORD_4, 1, 4); - defineMap(GL_MAP2_VERTEX_4, 1, 4); - defineMap(GL_MAP1_VERTEX_4, 1, 4); - defineMap(GL_MAP2_VERTEX_3, 0, 3); - defineMap(GL_MAP1_VERTEX_3, 0, 3); - defineMap(GL_MAP2_COLOR_4, 0, 4); - defineMap(GL_MAP1_COLOR_4, 0, 4); - defineMap(GL_MAP2_INDEX, 0, 1); - defineMap(GL_MAP1_INDEX, 0, 1); - - setnurbsproperty(GL_MAP1_VERTEX_3, N_SAMPLINGMETHOD, (float) N_PATHLENGTH); - setnurbsproperty(GL_MAP1_VERTEX_4, N_SAMPLINGMETHOD, (float) N_PATHLENGTH); - setnurbsproperty(GL_MAP2_VERTEX_3, N_SAMPLINGMETHOD, (float) N_PATHLENGTH); - setnurbsproperty(GL_MAP2_VERTEX_4, N_SAMPLINGMETHOD, (float) N_PATHLENGTH); - - setnurbsproperty(GL_MAP1_VERTEX_3, N_PIXEL_TOLERANCE, (float) 50.0); - setnurbsproperty(GL_MAP1_VERTEX_4, N_PIXEL_TOLERANCE, (float) 50.0); - setnurbsproperty(GL_MAP2_VERTEX_3, N_PIXEL_TOLERANCE, (float) 50.0); - setnurbsproperty(GL_MAP2_VERTEX_4, N_PIXEL_TOLERANCE, (float) 50.0); - - setnurbsproperty(GL_MAP1_VERTEX_3, N_ERROR_TOLERANCE, (float) 0.50); - setnurbsproperty(GL_MAP1_VERTEX_4, N_ERROR_TOLERANCE, (float) 0.50); - setnurbsproperty(GL_MAP2_VERTEX_3, N_ERROR_TOLERANCE, (float) 0.50); - setnurbsproperty(GL_MAP2_VERTEX_4, N_ERROR_TOLERANCE, (float) 0.50); - - setnurbsproperty(GL_MAP1_VERTEX_3, N_S_STEPS, (float) 100.0); - setnurbsproperty(GL_MAP1_VERTEX_4, N_S_STEPS, (float) 100.0); - setnurbsproperty(GL_MAP2_VERTEX_3, N_S_STEPS, (float) 100.0); - setnurbsproperty(GL_MAP2_VERTEX_4, N_S_STEPS, (float) 100.0); - - //added for optimizing untrimmed case - set_domain_distance_u_rate(100.0); - - setnurbsproperty(GL_MAP1_VERTEX_3, N_T_STEPS, (float) 100.0); - setnurbsproperty(GL_MAP1_VERTEX_4, N_T_STEPS, (float) 100.0); - setnurbsproperty(GL_MAP2_VERTEX_3, N_T_STEPS, (float) 100.0); - setnurbsproperty(GL_MAP2_VERTEX_4, N_T_STEPS, (float) 100.0); - - //added for optimizing untrimmed case - set_domain_distance_v_rate(100.0); - set_is_domain_distance_sampling(0); //since the default is path_length - - //default autoloadmode is true - autoloadmode = 1; - - //default callbackFlag is 0 - callbackFlag = 0; - - errorCallback = NULL; -} - -void -GLUnurbs::bgnrender(void) -{ - if (autoloadmode) { - loadGLMatrices(); - } -} - -void -GLUnurbs::endrender(void) -{ -} - -void -GLUnurbs::errorHandler(int i) -{ - int gluError; - - gluError = i + (GLU_NURBS_ERROR1 - 1); - postError( gluError ); -} - -void -GLUnurbs::loadGLMatrices(void) -{ - GLfloat vmat[4][4]; - GLint viewport[4]; - - grabGLMatrix((GLfloat (*)[4]) vmat); - loadCullingMatrix((GLfloat (*)[4]) vmat); - ::glGetIntegerv((GLenum) GL_VIEWPORT, (GLint *) viewport); - loadSamplingMatrix((const GLfloat (*)[4]) vmat, (const GLint *) viewport); -} - -void -GLUnurbs::useGLMatrices(const GLfloat modelMatrix[16], - const GLfloat projMatrix[16], - const GLint viewport[4]) -{ - GLfloat vmat[4][4]; - - multmatrix4d(vmat, (const GLfloat (*)[4]) modelMatrix, - (const GLfloat (*)[4]) projMatrix); - loadCullingMatrix((GLfloat (*)[4]) vmat); - loadSamplingMatrix((const GLfloat (*)[4]) vmat, (const GLint *) viewport); -} - -/*-------------------------------------------------------------------------- - * grabGLMatrix - *-------------------------------------------------------------------------- - */ - -void -GLUnurbs::grabGLMatrix(GLfloat vmat[4][4]) -{ - GLfloat m1[4][4], m2[4][4]; - - ::glGetFloatv((GLenum) GL_MODELVIEW_MATRIX, (GLfloat *) &(m1[0][0])); - ::glGetFloatv((GLenum) GL_PROJECTION_MATRIX, (GLfloat *) &(m2[0][0])); - multmatrix4d((GLfloat (*)[4]) vmat, - (GLfloat (*)[4]) m1, (GLfloat (*)[4]) m2); -} - -//for object space tesselation: view independent -void -GLUnurbs::setSamplingMatrixIdentity( void ) -{ - INREAL smat[4][4] = { - {1,0,0,0}, - {0,1,0,0}, - {0,0,1,0}, - {0,0,0,1} - }; - const long rstride = sizeof(smat[0]) / sizeof(smat[0][0]); - const long cstride = 1; - - setnurbsproperty(GL_MAP1_VERTEX_3, N_SAMPLINGMATRIX, &smat[0][0], rstride, - cstride); - setnurbsproperty(GL_MAP1_VERTEX_4, N_SAMPLINGMATRIX, &smat[0][0], rstride, - cstride); - setnurbsproperty(GL_MAP2_VERTEX_3, N_SAMPLINGMATRIX, &smat[0][0], rstride, - cstride); - setnurbsproperty(GL_MAP2_VERTEX_4, N_SAMPLINGMATRIX, &smat[0][0], rstride, - cstride); -} - - -void -GLUnurbs::loadSamplingMatrix(const GLfloat vmat[4][4], - const GLint viewport[4]) -{ - - /* rescale the mapping to correspond to pixels in x/y */ - REAL xsize = 0.5 * (REAL) (viewport[2]); - REAL ysize = 0.5 * (REAL) (viewport[3]); - - INREAL smat[4][4]; - smat[0][0] = vmat[0][0] * xsize; - smat[1][0] = vmat[1][0] * xsize; - smat[2][0] = vmat[2][0] * xsize; - smat[3][0] = vmat[3][0] * xsize; - - smat[0][1] = vmat[0][1] * ysize; - smat[1][1] = vmat[1][1] * ysize; - smat[2][1] = vmat[2][1] * ysize; - smat[3][1] = vmat[3][1] * ysize; - - smat[0][2] = 0.0; - smat[1][2] = 0.0; - smat[2][2] = 0.0; - smat[3][2] = 0.0; - - smat[0][3] = vmat[0][3]; - smat[1][3] = vmat[1][3]; - smat[2][3] = vmat[2][3]; - smat[3][3] = vmat[3][3]; - - const long rstride = sizeof(smat[0]) / sizeof(smat[0][0]); - const long cstride = 1; - - setnurbsproperty(GL_MAP1_VERTEX_3, N_SAMPLINGMATRIX, &smat[0][0], rstride, - cstride); - setnurbsproperty(GL_MAP1_VERTEX_4, N_SAMPLINGMATRIX, &smat[0][0], rstride, - cstride); - setnurbsproperty(GL_MAP2_VERTEX_3, N_SAMPLINGMATRIX, &smat[0][0], rstride, - cstride); - setnurbsproperty(GL_MAP2_VERTEX_4, N_SAMPLINGMATRIX, &smat[0][0], rstride, - cstride); -} - -void -GLUnurbs::loadCullingMatrix(GLfloat vmat[4][4]) -{ - INREAL cmat[4][4]; - - cmat[0][0] = vmat[0][0]; - cmat[0][1] = vmat[0][1]; - cmat[0][2] = vmat[0][2]; - cmat[0][3] = vmat[0][3]; - - cmat[1][0] = vmat[1][0]; - cmat[1][1] = vmat[1][1]; - cmat[1][2] = vmat[1][2]; - cmat[1][3] = vmat[1][3]; - - cmat[2][0] = vmat[2][0]; - cmat[2][1] = vmat[2][1]; - cmat[2][2] = vmat[2][2]; - cmat[2][3] = vmat[2][3]; - - cmat[3][0] = vmat[3][0]; - cmat[3][1] = vmat[3][1]; - cmat[3][2] = vmat[3][2]; - cmat[3][3] = vmat[3][3]; - - const long rstride = sizeof(cmat[0]) / sizeof(cmat[0][0]); - const long cstride = 1; - - setnurbsproperty(GL_MAP2_VERTEX_3, N_CULLINGMATRIX, &cmat[0][0], rstride, - cstride); - setnurbsproperty(GL_MAP2_VERTEX_4, N_CULLINGMATRIX, &cmat[0][0], rstride, - cstride); - //added for curves by zl - setnurbsproperty(GL_MAP1_VERTEX_3, N_CULLINGMATRIX, &cmat[0][0], rstride, - cstride); - setnurbsproperty(GL_MAP1_VERTEX_4, N_CULLINGMATRIX, &cmat[0][0], rstride, - cstride); -} - -/*--------------------------------------------------------------------- - * A = B * MAT ; transform a 4d vector through a 4x4 matrix - *--------------------------------------------------------------------- - */ -void -GLUnurbs::transform4d(GLfloat A[4], GLfloat B[4], GLfloat mat[4][4]) -{ - - A[0] = B[0]*mat[0][0] + B[1]*mat[1][0] + B[2]*mat[2][0] + B[3]*mat[3][0]; - A[1] = B[0]*mat[0][1] + B[1]*mat[1][1] + B[2]*mat[2][1] + B[3]*mat[3][1]; - A[2] = B[0]*mat[0][2] + B[1]*mat[1][2] + B[2]*mat[2][2] + B[3]*mat[3][2]; - A[3] = B[0]*mat[0][3] + B[1]*mat[1][3] + B[2]*mat[2][3] + B[3]*mat[3][3]; -} - -/*--------------------------------------------------------------------- - * new = [left][right] ; multiply two matrices together - *--------------------------------------------------------------------- - */ -void -GLUnurbs::multmatrix4d (GLfloat n[4][4], const GLfloat left[4][4], - const GLfloat right[4][4]) -{ - transform4d ((GLfloat *) n[0],(GLfloat *) left[0],(GLfloat (*)[4]) right); - transform4d ((GLfloat *) n[1],(GLfloat *) left[1],(GLfloat (*)[4]) right); - transform4d ((GLfloat *) n[2],(GLfloat *) left[2],(GLfloat (*)[4]) right); - transform4d ((GLfloat *) n[3],(GLfloat *) left[3],(GLfloat (*)[4]) right); -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glrenderer.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glrenderer.h deleted file mode 100644 index 375e2882c..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glrenderer.h +++ /dev/null @@ -1,145 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * glrenderer.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glrenderer.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __gluglrenderer_h_ -#define __gluglrenderer_h_ - -#include -#include -#include "nurbstess.h" -#include "glsurfeval.h" -#include "glcurveval.h" - -class GLUnurbs : public NurbsTessellator { - -public: - GLUnurbs( void ); - void loadGLMatrices( void ); - void useGLMatrices( const GLfloat modelMatrix[16], - const GLfloat projMatrix[16], - const GLint viewport[4] ); - void setSamplingMatrixIdentity( void ); - - void errorHandler( int ); - void bgnrender( void ); - void endrender( void ); - void setautoloadmode( INREAL value ) - { - - if (value) autoloadmode = GL_TRUE; - else autoloadmode = GL_FALSE; - - } - GLboolean getautoloadmode( void ) { return autoloadmode; } - - void (GLAPIENTRY *errorCallback)( GLenum ); - void postError( int which ) - { if (errorCallback) (*errorCallback)( (GLenum)which ); } - - void putSurfCallBack(GLenum which, GLvoid (GLAPIENTRY *fn)(...)) - { - curveEvaluator.putCallBack(which, fn); - surfaceEvaluator.putCallBack(which, fn); - } - - int get_vertices_call_back() - { - return surfaceEvaluator.get_vertices_call_back(); - } - - void put_vertices_call_back(int flag) - { - surfaceEvaluator.put_vertices_call_back(flag); - } - - int get_callback_auto_normal() - { - return surfaceEvaluator.get_callback_auto_normal(); - } - - void put_callback_auto_normal(int flag) - { - surfaceEvaluator.put_callback_auto_normal(flag); - } - - void setNurbsCallbackData(void* userData) - { - curveEvaluator.set_callback_userData(userData); - surfaceEvaluator.set_callback_userData(userData); - } - - - //for LOD - void LOD_eval_list(int level) - { - surfaceEvaluator.LOD_eval_list(level); - } - - //NEWCALLBACK - int is_callback() - { - return callbackFlag; - } - void put_callbackFlag(int flag) - { - callbackFlag = flag; - surfaceEvaluator.put_vertices_call_back(flag); - curveEvaluator.put_vertices_call_back(flag); - } - -private: - GLboolean autoloadmode; - OpenGLSurfaceEvaluator surfaceEvaluator; - OpenGLCurveEvaluator curveEvaluator; - - void loadSamplingMatrix( const GLfloat vmat[4][4], - const GLint viewport[4] ); - void loadCullingMatrix( GLfloat vmat[4][4] ); - static void grabGLMatrix( GLfloat vmat[4][4] ); - static void transform4d( GLfloat A[4], GLfloat B[4], - GLfloat mat[4][4] ); - static void multmatrix4d( GLfloat n[4][4], const GLfloat left[4][4], - const GLfloat right[4][4] ); - - int callbackFlag; -}; - -#endif /* __gluglrenderer_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glsurfeval.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glsurfeval.cc deleted file mode 100644 index e5e76ce2e..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glsurfeval.cc +++ /dev/null @@ -1,1291 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ -/* $XFree86$ */ - -/* - * glsurfeval.c++ - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glsurfeval.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ - -/* Polynomial Evaluator Interface */ -#include "gluos.h" -#include -#include "glimports.h" -#include "glrenderer.h" -#include "glsurfeval.h" -#include "nurbsconsts.h" -#include "bezierPatchMesh.h" - - -//extern int surfcount; -//int surfcount=0; - -/*#define USE_INTERNAL_EVAL*/ //use internal evaluator - -/*whether do evaluation or not*/ -/*#define NO_EVALUATION*/ - -//#define USE_LOD //for LOD test, have to turn on USE_LOD in insurfeval.c++ too - -/*for statistics*/ -//#define STATISTICS -#ifdef STATISTICS -static int STAT_num_of_triangles=0; -static int STAT_num_of_eval_vertices=0; -static int STAT_num_of_quad_strips=0; -#endif - -/*for output triangles*/ -/*#define OUTPUT_TRIANGLES*/ - - -/*#define FOR_CHRIS*/ -#ifdef FOR_CHRIS -extern "C" { void evalUStripExt(int n_upper, REAL v_upper, REAL* upper_val, - int n_lower, REAL v_lower, REAL* lower_val);} - -extern "C" { void evalVStripExt(int n_left, REAL u_left, REAL* left_val, - int n_right, REAL u_right, REAL* right_val); - } -#endif - - -/**************begin for LOD_eval_list***********/ -void OpenGLSurfaceEvaluator::LOD_eval_list(int level) -{ - if(level == 0) - LOD_eval_level = 1; - else if(level == 1) - LOD_eval_level = 2; - else if(level == 2) - LOD_eval_level = 4; - else - LOD_eval_level = 8; - - inBPMListEvalEM(global_bpm); -} - - -OpenGLSurfaceEvaluator::OpenGLSurfaceEvaluator() -{ - int i; - - for (i=0; i= n_upper) /*case1: no more in upper*/ - { - if(j= n_lower) /*case2: no more in lower*/ - { - if(i=i; k--) /*reverse order for two-side lighting*/ - { - coord2f(upper_val[k], v_upper); -// glNormal3fv(upperNormal[k]); -// glVertex3fv(upperXYZ[k]); - } - - endtfan(); - } - break; /*exit the main loop*/ - } - else /* case3: neither is empty, plus the leftMostV, there is at least one triangle to output*/ - { - if(upper_val[i] <= lower_val[j]) - { - bgntfan(); - coord2f(lower_val[j], v_lower); -// glNormal3fv(lowerNormal[j]); -// glVertex3fv(lowerXYZ[j]); - - /*find the last k>=i such that - *upperverts[k][0] <= lowerverts[j][0] - */ - k=i; - - while(k lower_val[j]) - break; - k++; - - } - k--; - - - for(l=k; l>=i; l--)/*the reverse is for two-side lighting*/ - { - coord2f(upper_val[l], v_upper); -// glNormal3fv(upperNormal[l]); -// glVertex3fv(upperXYZ[l]); - - } - coord2f(leftMostV[0], leftMostV[1]); -// glNormal3fv(leftMostNormal); -// glVertex3fv(leftMostXYZ); - - endtfan(); - - /*update i and leftMostV for next loop - */ - i = k+1; - - leftMostV[0] = upper_val[k]; - leftMostV[1] = v_upper; -// leftMostNormal = upperNormal[k]; -// leftMostXYZ = upperXYZ[k]; - } - else /*upperVerts[i][0] > lowerVerts[j][0]*/ - { - bgntfan(); - coord2f(upper_val[i], v_upper); -// glNormal3fv(upperNormal[i]); -// glVertex3fv(upperXYZ[i]); - - coord2f(leftMostV[0], leftMostV[1]); -// glNormal3fv(leftMostNormal); -// glVertex3fv(leftMostXYZ); - - - /*find the last k>=j such that - *lowerverts[k][0] < upperverts[i][0] - */ - k=j; - while(k< n_lower) - { - if(lower_val[k] >= upper_val[i]) - break; - coord2f(lower_val[k], v_lower); -// glNormal3fv(lowerNormal[k]); -// glVertex3fv(lowerXYZ[k]); - - k++; - } - endtfan(); - - /*update j and leftMostV for next loop - */ - j=k; - leftMostV[0] = lower_val[j-1]; - leftMostV[1] = v_lower; - -// leftMostNormal = lowerNormal[j-1]; -// leftMostXYZ = lowerXYZ[j-1]; - } - } - } - //clean up -// free(upperXYZ); -// free(lowerXYZ); -// free(upperNormal); -// free(lowerNormal); -#endif - -} - - -void -OpenGLSurfaceEvaluator::evalVStrip(int n_left, REAL u_left, REAL* left_val, int n_right, REAL u_right, REAL* right_val) -{ -#ifdef USE_INTERNAL_EVAL - inEvalVStrip(n_left, u_left, left_val, - n_right, u_right, right_val); -#else - -#ifdef FOR_CHRIS - evalVStripExt(n_left, u_left, left_val, - n_right, u_right, right_val); - return; - -#endif - - int i,j,k,l; - REAL botMostV[2]; - /* - *the algorithm works by scanning from bot to top. - *botMostV: the bot most of the remaining verteces (on both left and right). - * it could an element of leftVerts or rightVerts. - *i: leftVerts[i] is the first vertex to the top of botMostV on left line - *j: rightVerts[j] is the first vertex to the top of botMostV on rightline - */ - - /*initialize i,j,and botMostV - */ - if(left_val[0] <= right_val[0]) - { - i=1; - j=0; - - botMostV[0] = u_left; - botMostV[1] = left_val[0]; - } - else - { - i=0; - j=1; - - botMostV[0] = u_right; - botMostV[1] = right_val[0]; - } - - /*the main loop. - *the invariance is that: - *at the beginning of each loop, the meaning of i,j,and botMostV are - *maintained - */ - while(1) - { - if(i >= n_left) /*case1: no more in left*/ - { - if(j= n_right) /*case2: no more in right*/ - { - if(i=i; k--) /*reverse order for two-side lighting*/ - { - coord2f(u_left, left_val[k]); -// glNormal3fv(leftNormal[k]); -// glVertex3fv(leftXYZ[k]); - } - - endtfan(); - } - break; /*exit the main loop*/ - } - else /* case3: neither is empty, plus the botMostV, there is at least one triangle to output*/ - { - if(left_val[i] <= right_val[j]) - { - bgntfan(); - coord2f(u_right, right_val[j]); -// glNormal3fv(rightNormal[j]); -// glVertex3fv(rightXYZ[j]); - - /*find the last k>=i such that - *leftverts[k][0] <= rightverts[j][0] - */ - k=i; - - while(k right_val[j]) - break; - k++; - - } - k--; - - - for(l=k; l>=i; l--)/*the reverse is for two-side lighting*/ - { - coord2f(u_left, left_val[l]); -// glNormal3fv(leftNormal[l]); -// glVertex3fv(leftXYZ[l]); - - } - coord2f(botMostV[0], botMostV[1]); -// glNormal3fv(botMostNormal); -// glVertex3fv(botMostXYZ); - - endtfan(); - - /*update i and botMostV for next loop - */ - i = k+1; - - botMostV[0] = u_left; - botMostV[1] = left_val[k]; -// botMostNormal = leftNormal[k]; -// botMostXYZ = leftXYZ[k]; - } - else /*left_val[i] > right_val[j])*/ - { - bgntfan(); - coord2f(u_left, left_val[i]); -// glNormal3fv(leftNormal[i]); -// glVertex3fv(leftXYZ[i]); - - coord2f(botMostV[0], botMostV[1]); -// glNormal3fv(botMostNormal); -// glVertex3fv(botMostXYZ); - - - /*find the last k>=j such that - *rightverts[k][0] < leftverts[i][0] - */ - k=j; - while(k< n_right) - { - if(right_val[k] >= left_val[i]) - break; - coord2f(u_right, right_val[k]); -// glNormal3fv(rightNormal[k]); -// glVertex3fv(rightXYZ[k]); - - k++; - } - endtfan(); - - /*update j and botMostV for next loop - */ - j=k; - botMostV[0] = u_right; - botMostV[1] = right_val[j-1]; - -// botMostNormal = rightNormal[j-1]; -// botMostXYZ = rightXYZ[j-1]; - } - } - } - //clean up -// free(leftXYZ); -// free(leftNormal); -// free(rightXYZ); -// free(rightNormal); -#endif -} - - -void -OpenGLSurfaceEvaluator::bgnqstrip(void) -{ - if(output_triangles) - bezierPatchMeshBeginStrip(global_bpm, GL_QUAD_STRIP); - else - glBegin((GLenum) GL_QUAD_STRIP); - -#ifdef STATISTICS - STAT_num_of_quad_strips++; -#endif -} - -void -OpenGLSurfaceEvaluator::endqstrip(void) -{ - if(output_triangles) - bezierPatchMeshEndStrip(global_bpm); - else - glEnd(); - -} - -/*------------------------------------------------------------------------- - * bgnmap2f - preamble to surface definition and evaluations - *------------------------------------------------------------------------- - */ -void -OpenGLSurfaceEvaluator::bgnmap2f(long) -{ - if(output_triangles) - { - /*deallocate the space which may has been - *allocated by global_bpm previously - */ - if(global_bpm != NULL) { - bezierPatchMeshListDelete(global_bpm); - global_bpm = NULL; - } - - - /* - auto_normal_flag = 1; //always output normal in callback mode. - //we could have used the following code, - //but Inspector doesn't have gl context - //before it calls tessellator. - //this way is temporary. - */ - //NEWCALLBACK - //if one of the two normal callback functions are set, - //then set - if(normalCallBackN != NULL || - normalCallBackData != NULL) - auto_normal_flag = 1; - else - auto_normal_flag = 0; - - //initialize so that no maps initially - vertex_flag = 0; - normal_flag = 0; - color_flag = 0; - texcoord_flag = 0; - - /* - if(glIsEnabled(GL_AUTO_NORMAL) == GL_TRUE) - auto_normal_flag = 1; - else if (callback_auto_normal == 1) - auto_normal_flag = 1; - else - auto_normal_flag = 0; - */ - - //NEWCALLBACK: no need to worry about gl states when gling clalback - } - else - { - glPushAttrib((GLbitfield) GL_EVAL_BIT); - - /*to avoid side effect, we restor the opengl state for GL_POLYGON_MODE - */ - glGetIntegerv(GL_POLYGON_MODE, gl_polygon_mode); - } - -} - -/*------------------------------------------------------------------------- - * endmap2f - postamble to a map - *------------------------------------------------------------------------- - */ -void -OpenGLSurfaceEvaluator::endmap2f(void) -{ - - if(output_triangles) - { - //bezierPatchMeshListDelDeg(global_bpm); - - // bezierPatchMeshListEval(global_bpm); - - //surfcount++; - //printf("surfcount=%i\n", surfcount); - //if(surfcount == 8) exit(0); - - inBPMListEvalEM(global_bpm); - -/* - global_bpm = bezierPatchMeshListReverse(global_bpm); - { - float *vertex_array; - float *normal_array; - int *length_array; - int *type_array; - int num_strips; - bezierPatchMeshListCollect(global_bpm, &vertex_array, &normal_array, &length_array, &type_array, &num_strips); - drawStrips(vertex_array, normal_array, length_array, type_array, num_strips); - free(vertex_array); - free(normal_array); - free(length_array); - free(type_array); - } -*/ - - //bezierPatchMeshListPrint(global_bpm); - //bezierPatchMeshListDraw(global_bpm); - -// printf("num triangles=%i\n", bezierPatchMeshListNumTriangles(global_bpm)); - -#ifdef USE_LOD -#else - bezierPatchMeshListDelete(global_bpm); - global_bpm = NULL; -#endif - - } -else - { -#ifndef USE_LOD -glPopAttrib(); -#endif - -#ifdef STATISTICS - fprintf(stderr, "num_vertices=%i,num_triangles=%i,num_quads_strips=%i\n", STAT_num_of_eval_vertices,STAT_num_of_triangles,STAT_num_of_quad_strips); -#endif - - /*to restore the gl_polygon_mode - */ -#ifndef USE_LOD - glPolygonMode( GL_FRONT, (GLenum) gl_polygon_mode[0]); - glPolygonMode( GL_BACK, (GLenum) gl_polygon_mode[1]); -#endif -} - -} - -/*------------------------------------------------------------------------- - * map2f - pass a desription of a surface map - *------------------------------------------------------------------------- - */ -void -OpenGLSurfaceEvaluator::map2f( - long _type, - REAL _ulower, /* u lower domain coord */ - REAL _uupper, /* u upper domain coord */ - long _ustride, /* interpoint distance */ - long _uorder, /* parametric order */ - REAL _vlower, /* v lower domain coord */ - REAL _vupper, /* v upper domain coord */ - long _vstride, /* interpoint distance */ - long _vorder, /* parametric order */ - REAL *pts) /* control points */ -{ -#ifdef USE_INTERNAL_EVAL - inMap2f((int) _type, (REAL) _ulower, (REAL) _uupper, - (int) _ustride, (int) _uorder, (REAL) _vlower, - (REAL) _vupper, (int) _vstride, (int) _vorder, - (REAL *) pts); -#else - - - - if(output_triangles) - { - if(global_bpm == NULL) - global_bpm = bezierPatchMeshMake2(10,10); - if( - (global_bpm->bpatch == NULL && - (_type == GL_MAP2_VERTEX_3 || _type == GL_MAP2_VERTEX_4)) - || - (global_bpm->bpatch_normal == NULL && - (_type == GL_MAP2_NORMAL)) - || - (global_bpm->bpatch_color == NULL && - (_type == GL_MAP2_INDEX || _type == GL_MAP2_COLOR_4)) - || - (global_bpm->bpatch_texcoord == NULL && - (_type == GL_MAP2_TEXTURE_COORD_1 || - _type == GL_MAP2_TEXTURE_COORD_2 || - _type == GL_MAP2_TEXTURE_COORD_3 || - _type == GL_MAP2_TEXTURE_COORD_4 ) - )) - { - bezierPatchMeshPutPatch(global_bpm, (int) _type, _ulower, _uupper,(int) _ustride,(int) _uorder,_vlower, _vupper, (int) _vstride, (int) _vorder, pts); - } - else /*new surface patch (with multiple maps) starts*/ - { - bezierPatchMesh *temp = bezierPatchMeshMake2(10,10); - bezierPatchMeshPutPatch(temp, (int) _type, _ulower, _uupper,(int) _ustride,(int) _uorder,_vlower, _vupper, (int) _vstride, (int) _vorder, pts); - global_bpm = bezierPatchMeshListInsert(global_bpm, temp); - - /* - global_bpm = bezierPatchMeshListInsert(global_bpm, - bezierPatchMeshMake( - (int) _type, _ulower, _uupper,(int) _ustride, (int) _uorder, _vlower, _vupper, (int) _vstride, (int) _vorder, pts, 10, 10)); - */ - } - } - else /*not output triangles*/ - { - glMap2f((GLenum) _type, (GLfloat) _ulower, (GLfloat) _uupper, - (GLint) _ustride, (GLint) _uorder, (GLfloat) _vlower, - (GLfloat) _vupper, (GLint) _vstride, (GLint) _vorder, - (const GLfloat *) pts); - } - -#endif -} - - -/*------------------------------------------------------------------------- - * mapmesh2f - evaluate a mesh of points on lattice - *------------------------------------------------------------------------- - */ -void -OpenGLSurfaceEvaluator::mapmesh2f(long style, long umin, long umax, long vmin, long vmax) -{ -#ifdef NO_EVALUATION -return; -#endif - -#ifdef USE_INTERNAL_EVAL - inEvalMesh2((int)umin, (int)vmin, (int)umax, (int)vmax); -#else - - - -if(output_triangles) -{ -#ifdef USE_LOD - bezierPatchMeshBeginStrip(global_bpm, GL_POLYGON); - bezierPatchMeshInsertUV(global_bpm, global_grid_u0, global_grid_v0); - bezierPatchMeshInsertUV(global_bpm, global_grid_u1, global_grid_v1); - bezierPatchMeshInsertUV(global_bpm, (REAL)global_grid_nu, (REAL)global_grid_nv); - bezierPatchMeshInsertUV(global_bpm, (REAL)umin, (REAL)vmin); - bezierPatchMeshInsertUV(global_bpm, (REAL)umax, (REAL)vmax); - bezierPatchMeshEndStrip(global_bpm); - -#else - - REAL du, dv; - long i,j; - if(global_grid_nu == 0 || global_grid_nv == 0) - return; /*no points need to be output*/ - du = (global_grid_u1 - global_grid_u0) / (REAL)global_grid_nu; - dv = (global_grid_v1 - global_grid_v0) / (REAL)global_grid_nv; - - if(global_grid_nu >= global_grid_nv){ - - for(i=umin; i=vmin; j--){ - REAL v1 = (j == global_grid_nv)? global_grid_v1: (global_grid_v0 +j*dv); - - coord2f(u1, v1); - coord2f(u2, v1); - } - endqstrip(); - } - } - else{ - - for(i=vmin; i=umin; j--){ - REAL u1 = (j == global_grid_nu)? global_grid_u1: (global_grid_u0 +j*du); - coord2f(u1, v2); - coord2f(u1, v1); - } - endqstrip(); - } - } -#endif -} -else -{ - switch(style) { - default: - case N_MESHFILL: - glEvalMesh2((GLenum) GL_FILL, (GLint) umin, (GLint) umax, - (GLint) vmin, (GLint) vmax); - break; - case N_MESHLINE: - glEvalMesh2((GLenum) GL_LINE, (GLint) umin, (GLint) umax, - (GLint) vmin, (GLint) vmax); - break; - case N_MESHPOINT: - glEvalMesh2((GLenum) GL_POINT, (GLint) umin, (GLint) umax, - (GLint) vmin, (GLint) vmax); - break; - } - } - -#endif - -#ifdef STATISTICS - STAT_num_of_quad_strips += (umax-umin)*(vmax-vmin); -#endif -} - -/*------------------------------------------------------------------------- - * evalcoord2f - evaluate a point on a surface - *------------------------------------------------------------------------- - */ -void -OpenGLSurfaceEvaluator::evalcoord2f(long, REAL u, REAL v) -{ - - -#ifdef NO_EVALUATION -return; -#endif - - - newtmeshvert(u, v); -} - -/*------------------------------------------------------------------------- - * evalpoint2i - evaluate a grid point - *------------------------------------------------------------------------- - */ -void -OpenGLSurfaceEvaluator::evalpoint2i(long u, long v) -{ -#ifdef NO_EVALUATION -return; -#endif - - newtmeshvert(u, v); -} - -void -OpenGLSurfaceEvaluator::point2i( long u, long v ) -{ -#ifdef NO_EVALUATION -return; -#else - -#ifdef USE_INTERNAL_EVAL - inEvalPoint2( (int)u, (int)v); -#else - - -if(output_triangles) -{ - - REAL du, dv; - REAL fu,fv; - du = (global_grid_u1 - global_grid_u0) / (REAL)global_grid_nu; - dv = (global_grid_v1 - global_grid_v0) / (REAL)global_grid_nv; - fu = (u==global_grid_nu)? global_grid_u1:(global_grid_u0 + u*du); - fv = (v == global_grid_nv)? global_grid_v1: (global_grid_v0 +v*dv); - coord2f(fu,fv); -} -else - glEvalPoint2((GLint) u, (GLint) v); - - -#endif - -#ifdef STATISTICS - STAT_num_of_eval_vertices++; -#endif - -#endif - -} - -void -OpenGLSurfaceEvaluator::coord2f( REAL u, REAL v ) -{ -#ifdef NO_EVALUATION -return; -#else - -#ifdef USE_INTERNAL_EVAL - inEvalCoord2f( u, v); -#else - - -if(output_triangles) - bezierPatchMeshInsertUV(global_bpm, u,v); -else - glEvalCoord2f((GLfloat) u, (GLfloat) v); - - -#endif - - -#ifdef STATISTICS - STAT_num_of_eval_vertices++; -#endif - -#endif -} - -void -OpenGLSurfaceEvaluator::newtmeshvert( long u, long v ) -{ -#ifdef NO_EVALUATION -return; -#else - - if (tmeshing) { - - if (vcount == 2) { - vertexCache[0]->invoke(this); - vertexCache[1]->invoke(this); - point2i( u, v); - - } else { - vcount++; - } - - vertexCache[which]->saveEvalPoint(u, v); - which = 1 - which; - } else { - point2i( u, v); - } -#endif -} - -void -OpenGLSurfaceEvaluator::newtmeshvert( REAL u, REAL v ) -{ -#ifdef NO_EVALUATION -return; -#else - if (tmeshing) { - - - if (vcount == 2) { - vertexCache[0]->invoke(this); - vertexCache[1]->invoke(this); - coord2f(u,v); - - } else { - vcount++; - } - - vertexCache[which]->saveEvalCoord(u, v); - which = 1 - which; - } else { - - coord2f( u, v); - } -#endif - -} - -void -OpenGLSurfaceEvaluator::putCallBack(GLenum which, GLvoid (GLAPIENTRY *fn)(...)) -{ - switch(which) - { - case GLU_NURBS_BEGIN: - beginCallBackN = (void (GLAPIENTRY *) (GLenum)) fn; - break; - case GLU_NURBS_END: - endCallBackN = (void (GLAPIENTRY *) (void)) fn; - break; - case GLU_NURBS_VERTEX: - vertexCallBackN = (void (GLAPIENTRY *) (const GLfloat*)) fn; - break; - case GLU_NURBS_NORMAL: - normalCallBackN = (void (GLAPIENTRY *) (const GLfloat*)) fn; - break; - case GLU_NURBS_COLOR: - colorCallBackN = (void (GLAPIENTRY *) (const GLfloat*)) fn; - break; - case GLU_NURBS_TEXTURE_COORD: - texcoordCallBackN = (void (GLAPIENTRY *) (const GLfloat*)) fn; - break; - case GLU_NURBS_BEGIN_DATA: - beginCallBackData = (void (GLAPIENTRY *) (GLenum, void*)) fn; - break; - case GLU_NURBS_END_DATA: - endCallBackData = (void (GLAPIENTRY *) (void*)) fn; - break; - case GLU_NURBS_VERTEX_DATA: - vertexCallBackData = (void (GLAPIENTRY *) (const GLfloat*, void*)) fn; - break; - case GLU_NURBS_NORMAL_DATA: - normalCallBackData = (void (GLAPIENTRY *) (const GLfloat*, void*)) fn; - break; - case GLU_NURBS_COLOR_DATA: - colorCallBackData = (void (GLAPIENTRY *) (const GLfloat*, void*)) fn; - break; - case GLU_NURBS_TEXTURE_COORD_DATA: - texcoordCallBackData = (void (GLAPIENTRY *) (const GLfloat*, void*)) fn; - break; - - } -} - - -void -OpenGLSurfaceEvaluator::beginCallBack(GLenum which, void *data) -{ - if(beginCallBackData) - beginCallBackData(which, data); - else if(beginCallBackN) - beginCallBackN(which); -} - -void -OpenGLSurfaceEvaluator::endCallBack(void *data) -{ - if(endCallBackData) - endCallBackData(data); - else if(endCallBackN) - endCallBackN(); -} - -void -OpenGLSurfaceEvaluator::vertexCallBack(const GLfloat *vert, void* data) -{ - if(vertexCallBackData) - vertexCallBackData(vert, data); - else if(vertexCallBackN) - vertexCallBackN(vert); -} - - -void -OpenGLSurfaceEvaluator::normalCallBack(const GLfloat *normal, void* data) -{ - if(normalCallBackData) - normalCallBackData(normal, data); - else if(normalCallBackN) - normalCallBackN(normal); -} - -void -OpenGLSurfaceEvaluator::colorCallBack(const GLfloat *color, void* data) -{ - if(colorCallBackData) - colorCallBackData(color, data); - else if(colorCallBackN) - colorCallBackN(color); -} - -void -OpenGLSurfaceEvaluator::texcoordCallBack(const GLfloat *texcoord, void* data) -{ - if(texcoordCallBackData) - texcoordCallBackData(texcoord, data); - else if(texcoordCallBackN) - texcoordCallBackN(texcoord); -} - - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glsurfeval.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glsurfeval.h deleted file mode 100644 index 1c4b0dfe0..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glsurfeval.h +++ /dev/null @@ -1,404 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * glsurfeval.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/glsurfeval.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __gluglsurfeval_h_ -#define __gluglsurfeval_h_ - -#include "basicsurfeval.h" -#include "bezierPatchMesh.h" //in case output triangles -#include "GL/gl.h" - -class SurfaceMap; -class OpenGLSurfaceEvaluator; -class StoredVertex; - -#define TYPECOORD 1 -#define TYPEPOINT 2 - -/* Cache up to 3 vertices from tmeshes */ -#define VERTEX_CACHE_SIZE 3 - -/*for internal evaluator callback stuff*/ -#ifndef IN_MAX_BEZIER_ORDER -#define IN_MAX_BEZIER_ORDER 40 /*XXX should be bigger than machine order*/ -#endif - -#ifndef IN_MAX_DIMENSION -#define IN_MAX_DIMENSION 4 -#endif - -typedef struct surfEvalMachine{ - REAL uprime;//cached previusly evaluated uprime. - REAL vprime; - int k; /*the dimension*/ - REAL u1; - REAL u2; - int ustride; - int uorder; - REAL v1; - REAL v2; - int vstride; - int vorder; - REAL ctlPoints[IN_MAX_BEZIER_ORDER*IN_MAX_BEZIER_ORDER*IN_MAX_DIMENSION]; - REAL ucoeff[IN_MAX_BEZIER_ORDER]; /*cache the polynomial values*/ - REAL vcoeff[IN_MAX_BEZIER_ORDER]; - REAL ucoeffDeriv[IN_MAX_BEZIER_ORDER]; /*cache the polynomial derivatives*/ - REAL vcoeffDeriv[IN_MAX_BEZIER_ORDER]; -} surfEvalMachine; - - - -class StoredVertex { -public: - StoredVertex() { type = 0; } - ~StoredVertex(void) {} - void saveEvalCoord(REAL x, REAL y) - {coord[0] = x; coord[1] = y; type = TYPECOORD; } - void saveEvalPoint(long x, long y) - {point[0] = x; point[1] = y; type = TYPEPOINT; } - void invoke(OpenGLSurfaceEvaluator *eval); - -private: - int type; - REAL coord[2]; - long point[2]; -}; - -class OpenGLSurfaceEvaluator : public BasicSurfaceEvaluator { -public: - OpenGLSurfaceEvaluator(); - ~OpenGLSurfaceEvaluator( void ); - void polymode( long style ); - void range2f( long, REAL *, REAL * ); - void domain2f( REAL, REAL, REAL, REAL ); - void addMap( SurfaceMap * ) { } - - void enable( long ); - void disable( long ); - void bgnmap2f( long ); - void map2f( long, REAL, REAL, long, long, - REAL, REAL, long, long, REAL * ); - void mapgrid2f( long, REAL, REAL, long, REAL, REAL ); - void mapmesh2f( long, long, long, long, long ); - void evalcoord2f( long, REAL, REAL ); - void evalpoint2i( long, long ); - void endmap2f( void ); - - void bgnline( void ); - void endline( void ); - void bgnclosedline( void ); - void endclosedline( void ); - void bgntmesh( void ); - void swaptmesh( void ); - void endtmesh( void ); - void bgnqstrip( void ); - void endqstrip( void ); - - void bgntfan( void ); - void endtfan( void ); - void evalUStrip(int n_upper, REAL v_upper, REAL* upper_val, - int n_lower, REAL v_lower, REAL* lower_val); - void evalVStrip(int n_left, REAL u_left, REAL* left_val, - int n_right, REAL u_right, REAL* right_val); - - void coord2f( REAL, REAL ); - void point2i( long, long ); - - void newtmeshvert( REAL, REAL ); - void newtmeshvert( long, long ); - - void putCallBack(GLenum which, GLvoid (GLAPIENTRY *fn)(...)); - int get_vertices_call_back() - { - return output_triangles; - } - void put_vertices_call_back(int flag) - { - output_triangles = flag; - } - - void put_callback_auto_normal(int flag) - { - callback_auto_normal = flag; - } - - int get_callback_auto_normal() - { - return callback_auto_normal; - } - - void set_callback_userData(void* data) - { - userData = data; - } - - /**************begin for LOD_eval_list***********/ - void LOD_eval_list(int level); - - - - -private: - StoredVertex *vertexCache[VERTEX_CACHE_SIZE]; - int tmeshing; - int which; - int vcount; - - GLint gl_polygon_mode[2];/*to save and restore so that - *no side effect - */ - bezierPatchMesh *global_bpm; //for output triangles - int output_triangles; //true 1 or false 0 - - - - void (GLAPIENTRY *beginCallBackN) (GLenum type); - void (GLAPIENTRY *endCallBackN) (void); - void (GLAPIENTRY *vertexCallBackN) (const GLfloat *vert); - void (GLAPIENTRY *normalCallBackN) (const GLfloat *normal); - void (GLAPIENTRY *colorCallBackN) (const GLfloat *color); - void (GLAPIENTRY *texcoordCallBackN) (const GLfloat *texcoord); - - void (GLAPIENTRY *beginCallBackData) (GLenum type, void* data); - void (GLAPIENTRY *endCallBackData) (void* data); - void (GLAPIENTRY *vertexCallBackData) (const GLfloat *vert, void* data); - void (GLAPIENTRY *normalCallBackData) (const GLfloat *normal, void* data); - void (GLAPIENTRY *colorCallBackData) (const GLfloat *color, void* data); - void (GLAPIENTRY *texcoordCallBackData) (const GLfloat *texcoord, void* data); - - void beginCallBack (GLenum type, void* data); - void endCallBack (void* data); - void vertexCallBack (const GLfloat *vert, void* data); - void normalCallBack (const GLfloat *normal, void* data); - void colorCallBack (const GLfloat *color, void* data); - void texcoordCallBack (const GLfloat *texcoord, void* data); - - - void* userData; //the opaque pointer for Data callback functions. - - /*LOD evaluation*/ - void LOD_triangle(REAL A[2], REAL B[2], REAL C[2], - int level); - void LOD_eval(int num_vert, REAL* verts, int type, int level); - - int LOD_eval_level; //set by LOD_eval_list() - - /*************begin for internal evaluators*****************/ - - /*the following global variables are only defined in this file. - *They are used to cache the precomputed Bezier polynomial values. - *These calues may be used consecutively in which case we don't have - *recompute these values again. - */ - int global_uorder; /*store the uorder in the previous evaluation*/ - int global_vorder; /*store the vorder in the previous evaluation*/ - REAL global_uprime; - REAL global_vprime; - REAL global_vprime_BV; - REAL global_uprime_BU; - int global_uorder_BV; /*store the uorder in the previous evaluation*/ - int global_vorder_BV; /*store the vorder in the previous evaluation*/ - int global_uorder_BU; /*store the uorder in the previous evaluation*/ - int global_vorder_BU; /*store the vorder in the previous evaluation*/ - - REAL global_ucoeff[IN_MAX_BEZIER_ORDER]; /*cache the polynomial values*/ - REAL global_vcoeff[IN_MAX_BEZIER_ORDER]; - REAL global_ucoeffDeriv[IN_MAX_BEZIER_ORDER]; /*cache the polynomial derivatives*/ - REAL global_vcoeffDeriv[IN_MAX_BEZIER_ORDER]; - - REAL global_BV[IN_MAX_BEZIER_ORDER][IN_MAX_DIMENSION]; - REAL global_PBV[IN_MAX_BEZIER_ORDER][IN_MAX_DIMENSION]; - REAL global_BU[IN_MAX_BEZIER_ORDER][IN_MAX_DIMENSION]; - REAL global_PBU[IN_MAX_BEZIER_ORDER][IN_MAX_DIMENSION]; - REAL* global_baseData; - - int global_ev_k; /*the dimension*/ - REAL global_ev_u1; - REAL global_ev_u2; - int global_ev_ustride; - int global_ev_uorder; - REAL global_ev_v1; - REAL global_ev_v2; - int global_ev_vstride; - int global_ev_vorder; - REAL global_ev_ctlPoints[IN_MAX_BEZIER_ORDER*IN_MAX_BEZIER_ORDER*IN_MAX_DIMENSION]; - - REAL global_grid_u0; - REAL global_grid_u1; - int global_grid_nu; - REAL global_grid_v0; - REAL global_grid_v1; - int global_grid_nv; - -/*functions*/ - void inDoDomain2WithDerivs(int k, REAL u, REAL v, - REAL u1, REAL u2, int uorder, - REAL v1, REAL v2, int vorder, - REAL *baseData, - REAL *retPoint, REAL *retdu, REAL *retdv); - void inPreEvaluate(int order, REAL vprime, REAL *coeff); - void inPreEvaluateWithDeriv(int order, REAL vprime, REAL *coeff, REAL *coeffDeriv); - void inComputeFirstPartials(REAL *p, REAL *pu, REAL *pv); - void inComputeNormal2(REAL *pu, REAL *pv, REAL *n); - void inDoEvalCoord2(REAL u, REAL v, - REAL *retPoint, REAL *retNormal); - void inDoEvalCoord2NOGE(REAL u, REAL v, - REAL *retPoint, REAL *retNormal); - void inMap2f(int k, - REAL ulower, - REAL uupper, - int ustride, - int uorder, - REAL vlower, - REAL vupper, - int vstride, - int vorder, - REAL *ctlPoints); - - void inMapGrid2f(int nu, REAL u0, REAL u1, - int nv, REAL v0, REAL v1); - - void inEvalMesh2(int lowU, int lowV, int highU, int highV); - void inEvalPoint2(int i, int j); - void inEvalCoord2f(REAL u, REAL v); - -void inEvalULine(int n_points, REAL v, REAL* u_vals, - int stride, REAL ret_points[][3], REAL ret_normals[][3]); - -void inEvalVLine(int n_points, REAL u, REAL* v_vals, - int stride, REAL ret_points[][3], REAL ret_normals[][3]); - -void inEvalUStrip(int n_upper, REAL v_upper, REAL* upper_val, - int n_lower, REAL v_lower, REAL* lower_val - ); -void inEvalVStrip(int n_left, REAL u_left, REAL* left_val, int n_right, REAL u_right, REAL* right_val); - -void inPreEvaluateBV(int k, int uorder, int vorder, REAL vprime, REAL *baseData); -void inPreEvaluateBU(int k, int uorder, int vorder, REAL uprime, REAL *baseData); -void inPreEvaluateBV_intfac(REAL v ) - { - inPreEvaluateBV(global_ev_k, global_ev_uorder, global_ev_vorder, (v-global_ev_v1)/(global_ev_v2-global_ev_v1), global_ev_ctlPoints); - } - -void inPreEvaluateBU_intfac(REAL u) - { - inPreEvaluateBU(global_ev_k, global_ev_uorder, global_ev_vorder, (u-global_ev_u1)/(global_ev_u2-global_ev_u1), global_ev_ctlPoints); - } - -void inDoDomain2WithDerivsBV(int k, REAL u, REAL v, - REAL u1, REAL u2, int uorder, - REAL v1, REAL v2, int vorder, - REAL *baseData, - REAL *retPoint, REAL* retdu, REAL *retdv); - -void inDoDomain2WithDerivsBU(int k, REAL u, REAL v, - REAL u1, REAL u2, int uorder, - REAL v1, REAL v2, int vorder, - REAL *baseData, - REAL *retPoint, REAL* retdu, REAL *retdv); - - -void inDoEvalCoord2NOGE_BV(REAL u, REAL v, - REAL *retPoint, REAL *retNormal); - -void inDoEvalCoord2NOGE_BU(REAL u, REAL v, - REAL *retPoint, REAL *retNormal); - -void inBPMEval(bezierPatchMesh* bpm); -void inBPMListEval(bezierPatchMesh* list); - -/*-------------begin for surfEvalMachine -------------*/ -surfEvalMachine em_vertex; -surfEvalMachine em_normal; -surfEvalMachine em_color; -surfEvalMachine em_texcoord; - -int auto_normal_flag; //whether to output normla or not in callback - //determined by GL_AUTO_NORMAL and callback_auto_normal -int callback_auto_normal; //GLU_CALLBACK_AUTO_NORMAL_EXT -int vertex_flag; -int normal_flag; -int color_flag; -int texcoord_flag; - -void inMap2fEM(int which, //0:vert,1:norm,2:color,3:tex - int dimension, - REAL ulower, - REAL uupper, - int ustride, - int uorder, - REAL vlower, - REAL vupper, - int vstride, - int vorder, - REAL *ctlPoints); - -void inDoDomain2WithDerivsEM(surfEvalMachine *em, REAL u, REAL v, - REAL *retPoint, REAL *retdu, REAL *retdv); -void inDoDomain2EM(surfEvalMachine *em, REAL u, REAL v, - REAL *retPoint); - void inDoEvalCoord2EM(REAL u, REAL v); - -void inBPMEvalEM(bezierPatchMesh* bpm); -void inBPMListEvalEM(bezierPatchMesh* list); - -/*-------------end for surfEvalMachine -------------*/ - - - /*************end for internal evaluators*****************/ - -}; - -inline void StoredVertex::invoke(OpenGLSurfaceEvaluator *eval) -{ - switch(type) { - case TYPECOORD: - eval->coord2f(coord[0], coord[1]); - break; - case TYPEPOINT: - eval->point2i(point[0], point[1]); - break; - default: - break; - } -} - -#endif /* __gluglsurfeval_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/incurveeval.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/incurveeval.cc deleted file mode 100644 index b042ad134..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/incurveeval.cc +++ /dev/null @@ -1,210 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ -*/ -/* $XFree86$ */ - -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/incurveeval.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ -*/ - -#include -#include - -#include "glcurveval.h" - - -/* - *compute the Bezier polynomials C[n,j](v) for all j at v with - *return values stored in coeff[], where - * C[n,j](v) = (n,j) * v^j * (1-v)^(n-j), - * j=0,1,2,...,n. - *order : n+1 - *vprime: v - *coeff : coeff[j]=C[n,j](v), this array store the returned values. - *The algorithm is a recursive scheme: - * C[0,0]=1; - * C[n,j](v) = (1-v)*C[n-1,j](v) + v*C[n-1,j-1](v), n>=1 - *This code is copied from opengl/soft/so_eval.c:PreEvaluate - */ -void OpenGLCurveEvaluator::inPreEvaluate(int order, REAL vprime, REAL *coeff) -{ - int i, j; - REAL oldval, temp; - REAL oneMinusvprime; - - /* - * Minor optimization - * Compute orders 1 and 2 outright, and set coeff[0], coeff[1] to - * their i==1 loop values to avoid the initialization and the i==1 loop. - */ - if (order == 1) { - coeff[0] = 1.0; - return; - } - - oneMinusvprime = 1-vprime; - coeff[0] = oneMinusvprime; - coeff[1] = vprime; - if (order == 2) return; - - for (i = 2; i < order; i++) { - oldval = coeff[0] * vprime; - coeff[0] = oneMinusvprime * coeff[0]; - for (j = 1; j < i; j++) { - temp = oldval; - oldval = coeff[j] * vprime; - coeff[j] = temp + oneMinusvprime * coeff[j]; - } - coeff[j] = oldval; - } -} - -void OpenGLCurveEvaluator::inMap1f(int which, //0: vert, 1: norm, 2: color, 3: tex - int k, //dimension - REAL ulower, - REAL uupper, - int ustride, - int uorder, - REAL *ctlpoints) -{ - int i,x; - curveEvalMachine *temp_em; - switch(which){ - case 0: //vertex - vertex_flag = 1; - temp_em = &em_vertex; - break; - case 1: //normal - normal_flag = 1; - temp_em = &em_normal; - break; - case 2: //color - color_flag = 1; - temp_em = &em_color; - break; - default: - texcoord_flag = 1; - temp_em = &em_texcoord; - break; - } - - REAL *data = temp_em->ctlpoints; - temp_em->uprime = -1; //initialized - temp_em->k = k; - temp_em->u1 = ulower; - temp_em->u2 = uupper; - temp_em->ustride = ustride; - temp_em->uorder = uorder; - /*copy the control points*/ - for(i=0; iu2 == em->u1) - return; - the_uprime = (u-em->u1) / (em->u2-em->u1); - /*use already cached values if possible*/ - if(em->uprime != the_uprime){ - inPreEvaluate(em->uorder, the_uprime, em->ucoeff); - em->uprime = the_uprime; - } - - for(j=0; jk; j++){ - data = em->ctlpoints+j; - retPoint[j] = 0.0; - for(row=0; rowuorder; row++) - { - retPoint[j] += em->ucoeff[row] * (*data); - data += em->k; - } - } -} - -void OpenGLCurveEvaluator::inDoEvalCoord1(REAL u) -{ - REAL temp_vertex[4]; - REAL temp_normal[3]; - REAL temp_color[4]; - REAL temp_texcoord[4]; - if(texcoord_flag) //there is a texture map - { - inDoDomain1(&em_texcoord, u, temp_texcoord); - texcoordCallBack(temp_texcoord, userData); - } -#ifdef DEBUG -printf("color_flag = %i\n", color_flag); -#endif - if(color_flag) //there is a color map - { - inDoDomain1(&em_color, u, temp_color); - colorCallBack(temp_color, userData); - } - if(normal_flag) //there is a normal map - { - inDoDomain1(&em_normal, u, temp_normal); - normalCallBack(temp_normal, userData); - } - if(vertex_flag) - { - inDoDomain1(&em_vertex, u, temp_vertex); - vertexCallBack(temp_vertex, userData); - } -} - -void OpenGLCurveEvaluator::inMapMesh1f(int umin, int umax) -{ - REAL du, u; - int i; - if(global_grid_nu == 0) - return; //no points to output - du = (global_grid_u1 - global_grid_u0) / (REAL) global_grid_nu; - bgnline(); - for(i=umin; i<= umax; i++){ - u = (i==global_grid_nu)? global_grid_u1: global_grid_u0 + i*du; - inDoEvalCoord1(u); - } - endline(); -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/insurfeval.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/insurfeval.cc deleted file mode 100644 index 7908d60a0..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/insurfeval.cc +++ /dev/null @@ -1,2023 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/insurfeval.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ -*/ -/* $XFree86: xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/insurfeval.cc,v 1.2tsi Exp $ */ - -#include "gluos.h" -#include -#include -#include -#include -#include - -#include "glsurfeval.h" - -//extern int surfcount; - -//#define CRACK_TEST - -#define AVOID_ZERO_NORMAL - -#ifdef AVOID_ZERO_NORMAL -#define myabs(x) ((x>0)? x: (-x)) -#define MYZERO 0.000001 -#define MYDELTA 0.001 -#endif - -//#define USE_LOD -#ifdef USE_LOD -//#define LOD_EVAL_COORD(u,v) inDoEvalCoord2EM(u,v) -#define LOD_EVAL_COORD(u,v) glEvalCoord2f(u,v) - -static void LOD_interpolate(REAL A[2], REAL B[2], REAL C[2], int j, int k, int pow2_level, - REAL& u, REAL& v) -{ - REAL a,a1,b,b1; - - a = ((REAL) j) / ((REAL) pow2_level); - a1 = 1-a; - - if(j != 0) - { - b = ((REAL) k) / ((REAL)j); - b1 = 1-b; - } - REAL x,y,z; - x = a1; - if(j==0) - { - y=0; z=0; - } - else{ - y = b1*a; - z = b *a; - } - - u = x*A[0] + y*B[0] + z*C[0]; - v = x*A[1] + y*B[1] + z*C[1]; -} - -void OpenGLSurfaceEvaluator::LOD_triangle(REAL A[2], REAL B[2], REAL C[2], - int level) -{ - int k,j; - int pow2_level; - /*compute 2^level*/ - pow2_level = 1; - - for(j=0; jnext) - { - inBPMEval(temp); - } -} - -void OpenGLSurfaceEvaluator::inBPMEval(bezierPatchMesh* bpm) -{ - int i,j,k,l; - float u,v; - - int ustride = bpm->bpatch->dimension * bpm->bpatch->vorder; - int vstride = bpm->bpatch->dimension; - inMap2f( - (bpm->bpatch->dimension == 3)? GL_MAP2_VERTEX_3 : GL_MAP2_VERTEX_4, - bpm->bpatch->umin, - bpm->bpatch->umax, - ustride, - bpm->bpatch->uorder, - bpm->bpatch->vmin, - bpm->bpatch->vmax, - vstride, - bpm->bpatch->vorder, - bpm->bpatch->ctlpoints); - - bpm->vertex_array = (float*) malloc(sizeof(float)* (bpm->index_UVarray/2) * 3+1); /*in case the origional dimenion is 4, then we need 4 space to pass to evaluator.*/ - assert(bpm->vertex_array); - bpm->normal_array = (float*) malloc(sizeof(float)* (bpm->index_UVarray/2) * 3); - assert(bpm->normal_array); -#ifdef CRACK_TEST -if( global_ev_u1 ==2 && global_ev_u2 == 3 - && global_ev_v1 ==2 && global_ev_v2 == 3) -{ -REAL vertex[4]; -REAL normal[4]; -#ifdef DEBUG -printf("***number 1\n"); -#endif - -beginCallBack(GL_QUAD_STRIP, NULL); -inEvalCoord2f(3.0, 3.0); -inEvalCoord2f(2.0, 3.0); -inEvalCoord2f(3.0, 2.7); -inEvalCoord2f(2.0, 2.7); -inEvalCoord2f(3.0, 2.0); -inEvalCoord2f(2.0, 2.0); -endCallBack(NULL); - - -beginCallBack(GL_TRIANGLE_STRIP, NULL); -inEvalCoord2f(2.0, 3.0); -inEvalCoord2f(2.0, 2.0); -inEvalCoord2f(2.0, 2.7); -endCallBack(NULL); - -} - -/* -if( global_ev_u1 ==2 && global_ev_u2 == 3 - && global_ev_v1 ==1 && global_ev_v2 == 2) -{ -#ifdef DEBUG -printf("***number 2\n"); -#endif -beginCallBack(GL_QUAD_STRIP); -inEvalCoord2f(2.0, 2.0); -inEvalCoord2f(2.0, 1.0); -inEvalCoord2f(3.0, 2.0); -inEvalCoord2f(3.0, 1.0); -endCallBack(); -} -*/ -if( global_ev_u1 ==1 && global_ev_u2 == 2 - && global_ev_v1 ==2 && global_ev_v2 == 3) -{ -#ifdef DEBUG -printf("***number 3\n"); -#endif -beginCallBack(GL_QUAD_STRIP, NULL); -inEvalCoord2f(2.0, 3.0); -inEvalCoord2f(1.0, 3.0); -inEvalCoord2f(2.0, 2.3); -inEvalCoord2f(1.0, 2.3); -inEvalCoord2f(2.0, 2.0); -inEvalCoord2f(1.0, 2.0); -endCallBack(NULL); - -beginCallBack(GL_TRIANGLE_STRIP, NULL); -inEvalCoord2f(2.0, 2.3); -inEvalCoord2f(2.0, 2.0); -inEvalCoord2f(2.0, 3.0); -endCallBack(NULL); - -} -return; -#endif - - k=0; - l=0; - - for(i=0; iindex_length_array; i++) - { - beginCallBack(bpm->type_array[i], userData); - for(j=0; jlength_array[i]; j++) - { - u = bpm->UVarray[k]; - v = bpm->UVarray[k+1]; - inDoEvalCoord2NOGE(u,v, - bpm->vertex_array+l, - bpm->normal_array+l); - - normalCallBack(bpm->normal_array+l, userData); - vertexCallBack(bpm->vertex_array+l, userData); - - k += 2; - l += 3; - } - endCallBack(userData); - } -} - -void OpenGLSurfaceEvaluator::inEvalPoint2(int i, int j) -{ - REAL du, dv; - REAL point[4]; - REAL normal[3]; - REAL u,v; - du = (global_grid_u1 - global_grid_u0) / (REAL)global_grid_nu; - dv = (global_grid_v1 - global_grid_v0) / (REAL)global_grid_nv; - u = (i==global_grid_nu)? global_grid_u1:(global_grid_u0 + i*du); - v = (j == global_grid_nv)? global_grid_v1: (global_grid_v0 +j*dv); - inDoEvalCoord2(u,v,point,normal); -} - -void OpenGLSurfaceEvaluator::inEvalCoord2f(REAL u, REAL v) -{ - - REAL point[4]; - REAL normal[3]; - inDoEvalCoord2(u,v,point, normal); -} - - - -/*define a grid. store the values into the global variabls: - * global_grid_* - *These values will be used later by evaluating functions - */ -void OpenGLSurfaceEvaluator::inMapGrid2f(int nu, REAL u0, REAL u1, - int nv, REAL v0, REAL v1) -{ - global_grid_u0 = u0; - global_grid_u1 = u1; - global_grid_nu = nu; - global_grid_v0 = v0; - global_grid_v1 = v1; - global_grid_nv = nv; -} - -void OpenGLSurfaceEvaluator::inEvalMesh2(int lowU, int lowV, int highU, int highV) -{ - REAL du, dv; - int i,j; - REAL point[4]; - REAL normal[3]; - if(global_grid_nu == 0 || global_grid_nv == 0) - return; /*no points need to be output*/ - du = (global_grid_u1 - global_grid_u0) / (REAL)global_grid_nu; - dv = (global_grid_v1 - global_grid_v0) / (REAL)global_grid_nv; - - if(global_grid_nu >= global_grid_nv){ - for(i=lowU; i=lowV; j--){ - REAL v1 = (j == global_grid_nv)? global_grid_v1: (global_grid_v0 +j*dv); - - inDoEvalCoord2(u1, v1, point, normal); - inDoEvalCoord2(u2, v1, point, normal); - } - endqstrip(); - } - } - - else{ - for(i=lowV; i=lowU; j--){ - REAL u1 = (j == global_grid_nu)? global_grid_u1: (global_grid_u0 +j*du); - inDoEvalCoord2(u1, v2, point, normal); - inDoEvalCoord2(u1, v1, point, normal); - } - endqstrip(); - } - } -} - -void OpenGLSurfaceEvaluator::inMap2f(int k, - REAL ulower, - REAL uupper, - int ustride, - int uorder, - REAL vlower, - REAL vupper, - int vstride, - int vorder, - REAL *ctlPoints) -{ - int i,j,x; - REAL *data = global_ev_ctlPoints; - - - - if(k == GL_MAP2_VERTEX_3) k=3; - else if (k==GL_MAP2_VERTEX_4) k =4; - else { - printf("error in inMap2f, maptype=%i is wrong, k,map is not updated\n", k); - return; - } - - global_ev_k = k; - global_ev_u1 = ulower; - global_ev_u2 = uupper; - global_ev_ustride = ustride; - global_ev_uorder = uorder; - global_ev_v1 = vlower; - global_ev_v2 = vupper; - global_ev_vstride = vstride; - global_ev_vorder = vorder; - - /*copy the contrl points from ctlPoints to global_ev_ctlPoints*/ - for (i=0; i 0.0); /*better be some threshold*/ - n[0] /= mag; - n[1] /= mag; - n[2] /= mag; - -} - - - -/*Compute point and normal - *see the head of inDoDomain2WithDerivs - *for the meaning of the arguments - */ -void OpenGLSurfaceEvaluator::inDoEvalCoord2(REAL u, REAL v, - REAL *retPoint, REAL *retNormal) -{ - - REAL du[4]; - REAL dv[4]; - - assert(global_ev_k>=3 && global_ev_k <= 4); - /*compute homegeneous point and partial derivatives*/ - inDoDomain2WithDerivs(global_ev_k, u, v, global_ev_u1, global_ev_u2, global_ev_uorder, global_ev_v1, global_ev_v2, global_ev_vorder, global_ev_ctlPoints, retPoint, du, dv); - -#ifdef AVOID_ZERO_NORMAL - - if(myabs(dv[0]) <= MYZERO && myabs(dv[1]) <= MYZERO && myabs(dv[2]) <= MYZERO) - { - - REAL tempdu[4]; - REAL tempdata[4]; - REAL u1 = global_ev_u1; - REAL u2 = global_ev_u2; - if(u-MYDELTA*(u2-u1) < u1) - u = u+ MYDELTA*(u2-u1); - else - u = u-MYDELTA*(u2-u1); - inDoDomain2WithDerivs(global_ev_k, u,v,global_ev_u1, global_ev_u2, global_ev_uorder, global_ev_v1, global_ev_v2, global_ev_vorder, global_ev_ctlPoints, tempdata, tempdu, dv); - } - if(myabs(du[0]) <= MYZERO && myabs(du[1]) <= MYZERO && myabs(du[2]) <= MYZERO) - { - REAL tempdv[4]; - REAL tempdata[4]; - REAL v1 = global_ev_v1; - REAL v2 = global_ev_v2; - if(v-MYDELTA*(v2-v1) < v1) - v = v+ MYDELTA*(v2-v1); - else - v = v-MYDELTA*(v2-v1); - inDoDomain2WithDerivs(global_ev_k, u,v,global_ev_u1, global_ev_u2, global_ev_uorder, global_ev_v1, global_ev_v2, global_ev_vorder, global_ev_ctlPoints, tempdata, du, tempdv); - } -#endif - - - /*compute normal*/ - switch(global_ev_k){ - case 3: - inComputeNormal2(du, dv, retNormal); - - break; - case 4: - inComputeFirstPartials(retPoint, du, dv); - inComputeNormal2(du, dv, retNormal); - /*transform the homegeneous coordinate of retPoint into inhomogenous one*/ - retPoint[0] /= retPoint[3]; - retPoint[1] /= retPoint[3]; - retPoint[2] /= retPoint[3]; - break; - } - /*output this vertex*/ -/* inMeshStreamInsert(global_ms, retPoint, retNormal);*/ - - - - glNormal3fv(retNormal); - glVertex3fv(retPoint); - - - - -#ifdef DEBUG - printf("vertex(%f,%f,%f)\n", retPoint[0],retPoint[1],retPoint[2]); -#endif -} - -/*Compute point and normal - *see the head of inDoDomain2WithDerivs - *for the meaning of the arguments - */ -void OpenGLSurfaceEvaluator::inDoEvalCoord2NOGE_BU(REAL u, REAL v, - REAL *retPoint, REAL *retNormal) -{ - - REAL du[4]; - REAL dv[4]; - - assert(global_ev_k>=3 && global_ev_k <= 4); - /*compute homegeneous point and partial derivatives*/ -// inPreEvaluateBU(global_ev_k, global_ev_uorder, global_ev_vorder, (u-global_ev_u1)/(global_ev_u2-global_ev_u1), global_ev_ctlPoints); - inDoDomain2WithDerivsBU(global_ev_k, u, v, global_ev_u1, global_ev_u2, global_ev_uorder, global_ev_v1, global_ev_v2, global_ev_vorder, global_ev_ctlPoints, retPoint, du, dv); - - -#ifdef AVOID_ZERO_NORMAL - - if(myabs(dv[0]) <= MYZERO && myabs(dv[1]) <= MYZERO && myabs(dv[2]) <= MYZERO) - { - - REAL tempdu[4]; - REAL tempdata[4]; - REAL u1 = global_ev_u1; - REAL u2 = global_ev_u2; - if(u-MYDELTA*(u2-u1) < u1) - u = u+ MYDELTA*(u2-u1); - else - u = u-MYDELTA*(u2-u1); - inDoDomain2WithDerivs(global_ev_k, u,v,global_ev_u1, global_ev_u2, global_ev_uorder, global_ev_v1, global_ev_v2, global_ev_vorder, global_ev_ctlPoints, tempdata, tempdu, dv); - } - if(myabs(du[0]) <= MYZERO && myabs(du[1]) <= MYZERO && myabs(du[2]) <= MYZERO) - { - REAL tempdv[4]; - REAL tempdata[4]; - REAL v1 = global_ev_v1; - REAL v2 = global_ev_v2; - if(v-MYDELTA*(v2-v1) < v1) - v = v+ MYDELTA*(v2-v1); - else - v = v-MYDELTA*(v2-v1); - inDoDomain2WithDerivs(global_ev_k, u,v,global_ev_u1, global_ev_u2, global_ev_uorder, global_ev_v1, global_ev_v2, global_ev_vorder, global_ev_ctlPoints, tempdata, du, tempdv); - } -#endif - - /*compute normal*/ - switch(global_ev_k){ - case 3: - inComputeNormal2(du, dv, retNormal); - break; - case 4: - inComputeFirstPartials(retPoint, du, dv); - inComputeNormal2(du, dv, retNormal); - /*transform the homegeneous coordinate of retPoint into inhomogenous one*/ - retPoint[0] /= retPoint[3]; - retPoint[1] /= retPoint[3]; - retPoint[2] /= retPoint[3]; - break; - } -} - -/*Compute point and normal - *see the head of inDoDomain2WithDerivs - *for the meaning of the arguments - */ -void OpenGLSurfaceEvaluator::inDoEvalCoord2NOGE_BV(REAL u, REAL v, - REAL *retPoint, REAL *retNormal) -{ - - REAL du[4]; - REAL dv[4]; - - assert(global_ev_k>=3 && global_ev_k <= 4); - /*compute homegeneous point and partial derivatives*/ -// inPreEvaluateBV(global_ev_k, global_ev_uorder, global_ev_vorder, (v-global_ev_v1)/(global_ev_v2-global_ev_v1), global_ev_ctlPoints); - - inDoDomain2WithDerivsBV(global_ev_k, u, v, global_ev_u1, global_ev_u2, global_ev_uorder, global_ev_v1, global_ev_v2, global_ev_vorder, global_ev_ctlPoints, retPoint, du, dv); - - -#ifdef AVOID_ZERO_NORMAL - - if(myabs(dv[0]) <= MYZERO && myabs(dv[1]) <= MYZERO && myabs(dv[2]) <= MYZERO) - { - - REAL tempdu[4]; - REAL tempdata[4]; - REAL u1 = global_ev_u1; - REAL u2 = global_ev_u2; - if(u-MYDELTA*(u2-u1) < u1) - u = u+ MYDELTA*(u2-u1); - else - u = u-MYDELTA*(u2-u1); - inDoDomain2WithDerivs(global_ev_k, u,v,global_ev_u1, global_ev_u2, global_ev_uorder, global_ev_v1, global_ev_v2, global_ev_vorder, global_ev_ctlPoints, tempdata, tempdu, dv); - } - if(myabs(du[0]) <= MYZERO && myabs(du[1]) <= MYZERO && myabs(du[2]) <= MYZERO) - { - REAL tempdv[4]; - REAL tempdata[4]; - REAL v1 = global_ev_v1; - REAL v2 = global_ev_v2; - if(v-MYDELTA*(v2-v1) < v1) - v = v+ MYDELTA*(v2-v1); - else - v = v-MYDELTA*(v2-v1); - inDoDomain2WithDerivs(global_ev_k, u,v,global_ev_u1, global_ev_u2, global_ev_uorder, global_ev_v1, global_ev_v2, global_ev_vorder, global_ev_ctlPoints, tempdata, du, tempdv); - } -#endif - - /*compute normal*/ - switch(global_ev_k){ - case 3: - inComputeNormal2(du, dv, retNormal); - break; - case 4: - inComputeFirstPartials(retPoint, du, dv); - inComputeNormal2(du, dv, retNormal); - /*transform the homegeneous coordinate of retPoint into inhomogenous one*/ - retPoint[0] /= retPoint[3]; - retPoint[1] /= retPoint[3]; - retPoint[2] /= retPoint[3]; - break; - } -} - - -/*Compute point and normal - *see the head of inDoDomain2WithDerivs - *for the meaning of the arguments - */ -void OpenGLSurfaceEvaluator::inDoEvalCoord2NOGE(REAL u, REAL v, - REAL *retPoint, REAL *retNormal) -{ - - REAL du[4]; - REAL dv[4]; - - assert(global_ev_k>=3 && global_ev_k <= 4); - /*compute homegeneous point and partial derivatives*/ - inDoDomain2WithDerivs(global_ev_k, u, v, global_ev_u1, global_ev_u2, global_ev_uorder, global_ev_v1, global_ev_v2, global_ev_vorder, global_ev_ctlPoints, retPoint, du, dv); - - -#ifdef AVOID_ZERO_NORMAL - - if(myabs(dv[0]) <= MYZERO && myabs(dv[1]) <= MYZERO && myabs(dv[2]) <= MYZERO) - { - - REAL tempdu[4]; - REAL tempdata[4]; - REAL u1 = global_ev_u1; - REAL u2 = global_ev_u2; - if(u-MYDELTA*(u2-u1) < u1) - u = u+ MYDELTA*(u2-u1); - else - u = u-MYDELTA*(u2-u1); - inDoDomain2WithDerivs(global_ev_k, u,v,global_ev_u1, global_ev_u2, global_ev_uorder, global_ev_v1, global_ev_v2, global_ev_vorder, global_ev_ctlPoints, tempdata, tempdu, dv); - } - if(myabs(du[0]) <= MYZERO && myabs(du[1]) <= MYZERO && myabs(du[2]) <= MYZERO) - { - REAL tempdv[4]; - REAL tempdata[4]; - REAL v1 = global_ev_v1; - REAL v2 = global_ev_v2; - if(v-MYDELTA*(v2-v1) < v1) - v = v+ MYDELTA*(v2-v1); - else - v = v-MYDELTA*(v2-v1); - inDoDomain2WithDerivs(global_ev_k, u,v,global_ev_u1, global_ev_u2, global_ev_uorder, global_ev_v1, global_ev_v2, global_ev_vorder, global_ev_ctlPoints, tempdata, du, tempdv); - } -#endif - - /*compute normal*/ - switch(global_ev_k){ - case 3: - inComputeNormal2(du, dv, retNormal); - break; - case 4: - inComputeFirstPartials(retPoint, du, dv); - inComputeNormal2(du, dv, retNormal); - /*transform the homegeneous coordinate of retPoint into inhomogenous one*/ - retPoint[0] /= retPoint[3]; - retPoint[1] /= retPoint[3]; - retPoint[2] /= retPoint[3]; - break; - } -// glNormal3fv(retNormal); -// glVertex3fv(retPoint); -} - -void OpenGLSurfaceEvaluator::inPreEvaluateBV(int k, int uorder, int vorder, REAL vprime, REAL *baseData) -{ - int j,row,col; - REAL p, pdv; - REAL *data; - - if(global_vprime != vprime || global_vorder != vorder) { - inPreEvaluateWithDeriv(vorder, vprime, global_vcoeff, global_vcoeffDeriv); - global_vprime = vprime; - global_vorder = vorder; - } - - for(j=0; j=1 - *This code is copied from opengl/soft/so_eval.c:PreEvaluate - */ -void OpenGLSurfaceEvaluator::inPreEvaluate(int order, REAL vprime, REAL *coeff) -{ - int i, j; - REAL oldval, temp; - REAL oneMinusvprime; - - /* - * Minor optimization - * Compute orders 1 and 2 outright, and set coeff[0], coeff[1] to - * their i==1 loop values to avoid the initialization and the i==1 loop. - */ - if (order == 1) { - coeff[0] = 1.0; - return; - } - - oneMinusvprime = 1-vprime; - coeff[0] = oneMinusvprime; - coeff[1] = vprime; - if (order == 2) return; - - for (i = 2; i < order; i++) { - oldval = coeff[0] * vprime; - coeff[0] = oneMinusvprime * coeff[0]; - for (j = 1; j < i; j++) { - temp = oldval; - oldval = coeff[j] * vprime; - coeff[j] = temp + oneMinusvprime * coeff[j]; - } - coeff[j] = oldval; - } -} - -/* - *compute the Bezier polynomials C[n,j](v) and derivatives for all j at v with - *return values stored in coeff[] and coeffDeriv[]. - *see the head of function inPreEvaluate for the definition of C[n,j](v) - *and how to compute the values. - *The algorithm to compute the derivative is: - * dC[0,0](v) = 0. - * dC[n,j](v) = n*(dC[n-1,j-1](v) - dC[n-1,j](v)). - * - *This code is copied from opengl/soft/so_eval.c:PreEvaluateWidthDeriv - */ -void OpenGLSurfaceEvaluator::inPreEvaluateWithDeriv(int order, REAL vprime, - REAL *coeff, REAL *coeffDeriv) -{ - int i, j; - REAL oldval, temp; - REAL oneMinusvprime; - - oneMinusvprime = 1-vprime; - /* - * Minor optimization - * Compute orders 1 and 2 outright, and set coeff[0], coeff[1] to - * their i==1 loop values to avoid the initialization and the i==1 loop. - */ - if (order == 1) { - coeff[0] = 1.0; - coeffDeriv[0] = 0.0; - return; - } else if (order == 2) { - coeffDeriv[0] = -1.0; - coeffDeriv[1] = 1.0; - coeff[0] = oneMinusvprime; - coeff[1] = vprime; - return; - } - coeff[0] = oneMinusvprime; - coeff[1] = vprime; - for (i = 2; i < order - 1; i++) { - oldval = coeff[0] * vprime; - coeff[0] = oneMinusvprime * coeff[0]; - for (j = 1; j < i; j++) { - temp = oldval; - oldval = coeff[j] * vprime; - coeff[j] = temp + oneMinusvprime * coeff[j]; - } - coeff[j] = oldval; - } - coeffDeriv[0] = -coeff[0]; - /* - ** Minor optimization: - ** Would make this a "for (j=1; j=1 - *n_lower >=1 - */ -void OpenGLSurfaceEvaluator::inEvalUStrip(int n_upper, REAL v_upper, REAL* upper_val, int n_lower, REAL v_lower, REAL* lower_val) -{ - int i,j,k,l; - typedef REAL REAL3[3]; - - REAL3* upperXYZ = (REAL3*) malloc(sizeof(REAL3)*n_upper); - assert(upperXYZ); - REAL3* upperNormal = (REAL3*) malloc(sizeof(REAL3) * n_upper); - assert(upperNormal); - REAL3* lowerXYZ = (REAL3*) malloc(sizeof(REAL3)*n_lower); - assert(lowerXYZ); - REAL3* lowerNormal = (REAL3*) malloc(sizeof(REAL3) * n_lower); - assert(lowerNormal); - - inEvalULine(n_upper, v_upper, upper_val, 1, upperXYZ, upperNormal); - inEvalULine(n_lower, v_lower, lower_val, 1, lowerXYZ, lowerNormal); - - - - REAL* leftMostXYZ; - REAL* leftMostNormal; - - /* - *the algorithm works by scanning from left to right. - */ - - if(upper_val[0] <= lower_val[0]) - { - i=1; - j=0; - - leftMostXYZ = upperXYZ[0]; - leftMostNormal = upperNormal[0]; - } - else - { - i=0; - j=1; - - leftMostXYZ = lowerXYZ[0]; - leftMostNormal = lowerNormal[0]; - } - - /*the main loop. - */ - while(1) - { - if(i >= n_upper) /*case1: no more in upper*/ - { - if(j= n_lower) /*case2: no more in lower*/ - { - if(i=i; k--) /*reverse order for two-side lighting*/ - { - glNormal3fv(upperNormal[k]); - glVertex3fv(upperXYZ[k]); - } - - endtfan(); - } - break; /*exit the main loop*/ - } - else /* case3: neither is empty, there is at least one triangle to output*/ - { - if(upper_val[i] <= lower_val[j]) - { - bgntfan(); - - glNormal3fv(lowerNormal[j]); - glVertex3fv(lowerXYZ[j]); - - /*find the last k>=i such that - *upperverts[k][0] <= lowerverts[j][0] - */ - k=i; - - while(k lower_val[j]) - break; - k++; - - } - k--; - - - for(l=k; l>=i; l--)/*the reverse is for two-side lighting*/ - { - glNormal3fv(upperNormal[l]); - glVertex3fv(upperXYZ[l]); - - } - glNormal3fv(leftMostNormal); - glVertex3fv(leftMostXYZ); - - endtfan(); - - /*update i for next loop - */ - i = k+1; - - leftMostNormal = upperNormal[k]; - leftMostXYZ = upperXYZ[k]; - } - else /*upperVerts[i][0] > lowerVerts[j][0]*/ - { - bgntfan(); - glNormal3fv(upperNormal[i]); - glVertex3fv(upperXYZ[i]); - - glNormal3fv(leftMostNormal); - glVertex3fv(leftMostXYZ); - - - /*find the last k>=j such that - *lowerverts[k][0] < upperverts[i][0] - */ - k=j; - while(k< n_lower) - { - if(lower_val[k] >= upper_val[i]) - break; - glNormal3fv(lowerNormal[k]); - glVertex3fv(lowerXYZ[k]); - - k++; - } - endtfan(); - - /*update j for next loop - */ - j=k; - - leftMostNormal = lowerNormal[j-1]; - leftMostXYZ = lowerXYZ[j-1]; - } - } - } - //clean up - free(upperXYZ); - free(lowerXYZ); - free(upperNormal); - free(lowerNormal); -} - -/*triangulate a strip bounded by two lines which are parallel to V-axis - *leftVerts: the verteces on the left line - *rightVertx: the verteces on the right line - *n_left >=1 - *n_right >=1 - */ -void OpenGLSurfaceEvaluator::inEvalVStrip(int n_left, REAL u_left, REAL* left_val, int n_right, REAL u_right, REAL* right_val) -{ - int i,j,k,l; - typedef REAL REAL3[3]; - - REAL3* leftXYZ = (REAL3*) malloc(sizeof(REAL3)*n_left); - assert(leftXYZ); - REAL3* leftNormal = (REAL3*) malloc(sizeof(REAL3) * n_left); - assert(leftNormal); - REAL3* rightXYZ = (REAL3*) malloc(sizeof(REAL3)*n_right); - assert(rightXYZ); - REAL3* rightNormal = (REAL3*) malloc(sizeof(REAL3) * n_right); - assert(rightNormal); - - inEvalVLine(n_left, u_left, left_val, 1, leftXYZ, leftNormal); - inEvalVLine(n_right, u_right, right_val, 1, rightXYZ, rightNormal); - - - - REAL* botMostXYZ; - REAL* botMostNormal; - - /* - *the algorithm works by scanning from bot to top. - */ - - if(left_val[0] <= right_val[0]) - { - i=1; - j=0; - - botMostXYZ = leftXYZ[0]; - botMostNormal = leftNormal[0]; - } - else - { - i=0; - j=1; - - botMostXYZ = rightXYZ[0]; - botMostNormal = rightNormal[0]; - } - - /*the main loop. - */ - while(1) - { - if(i >= n_left) /*case1: no more in left*/ - { - if(j= n_right) /*case2: no more in right*/ - { - if(i=i; k--) /*reverse order for two-side lighting*/ - { - glNormal3fv(leftNormal[k]); - glVertex3fv(leftXYZ[k]); - } - - endtfan(); - } - break; /*exit the main loop*/ - } - else /* case3: neither is empty, there is at least one triangle to output*/ - { - if(left_val[i] <= right_val[j]) - { - bgntfan(); - - glNormal3fv(rightNormal[j]); - glVertex3fv(rightXYZ[j]); - - /*find the last k>=i such that - *leftverts[k][0] <= rightverts[j][0] - */ - k=i; - - while(k right_val[j]) - break; - k++; - - } - k--; - - - for(l=k; l>=i; l--)/*the reverse is for two-side lighting*/ - { - glNormal3fv(leftNormal[l]); - glVertex3fv(leftXYZ[l]); - - } - glNormal3fv(botMostNormal); - glVertex3fv(botMostXYZ); - - endtfan(); - - /*update i for next loop - */ - i = k+1; - - botMostNormal = leftNormal[k]; - botMostXYZ = leftXYZ[k]; - } - else /*left_val[i] > right_val[j])*/ - { - bgntfan(); - glNormal3fv(leftNormal[i]); - glVertex3fv(leftXYZ[i]); - - glNormal3fv(botMostNormal); - glVertex3fv(botMostXYZ); - - - /*find the last k>=j such that - *rightverts[k][0] < leftverts[i][0] - */ - k=j; - while(k< n_right) - { - if(right_val[k] >= left_val[i]) - break; - glNormal3fv(rightNormal[k]); - glVertex3fv(rightXYZ[k]); - - k++; - } - endtfan(); - - /*update j for next loop - */ - j=k; - - botMostNormal = rightNormal[j-1]; - botMostXYZ = rightXYZ[j-1]; - } - } - } - //clean up - free(leftXYZ); - free(leftXYZ); - free(rightNormal); - free(rightNormal); -} - -/*-----------------------begin evalMachine-------------------*/ -void OpenGLSurfaceEvaluator::inMap2fEM(int which, int k, - REAL ulower, - REAL uupper, - int ustride, - int uorder, - REAL vlower, - REAL vupper, - int vstride, - int vorder, - REAL *ctlPoints) -{ - int i,j,x; - surfEvalMachine *temp_em; - switch(which){ - case 0: //vertex - vertex_flag = 1; - temp_em = &em_vertex; - break; - case 1: //normal - normal_flag = 1; - temp_em = &em_normal; - break; - case 2: //color - color_flag = 1; - temp_em = &em_color; - break; - default: - texcoord_flag = 1; - temp_em = &em_texcoord; - break; - } - - REAL *data = temp_em->ctlPoints; - - temp_em->uprime = -1;//initilized - temp_em->vprime = -1; - - temp_em->k = k; - temp_em->u1 = ulower; - temp_em->u2 = uupper; - temp_em->ustride = ustride; - temp_em->uorder = uorder; - temp_em->v1 = vlower; - temp_em->v2 = vupper; - temp_em->vstride = vstride; - temp_em->vorder = vorder; - - /*copy the contrl points from ctlPoints to global_ev_ctlPoints*/ - for (i=0; iu2 == em->u1) || (em->v2 == em->v1)) - return; - the_uprime = (u - em->u1) / (em->u2 - em->u1); - the_vprime = (v - em->v1) / (em->v2 - em->v1); - - /* Compute coefficients for values and derivs */ - - /* Use already cached values if possible */ - if(em->uprime != the_uprime) { - inPreEvaluateWithDeriv(em->uorder, the_uprime, em->ucoeff, em->ucoeffDeriv); - em->uprime = the_uprime; - } - if (em->vprime != the_vprime) { - inPreEvaluateWithDeriv(em->vorder, the_vprime, em->vcoeff, em->vcoeffDeriv); - em->vprime = the_vprime; - } - - for (j = 0; j < em->k; j++) { - data=em->ctlPoints+j; - retPoint[j] = retdu[j] = retdv[j] = 0.0; - for (row = 0; row < em->uorder; row++) { - /* - ** Minor optimization. - ** The col == 0 part of the loop is extracted so we don't - ** have to initialize p and pdv to 0. - */ - p = em->vcoeff[0] * (*data); - pdv = em->vcoeffDeriv[0] * (*data); - data += em->k; - for (col = 1; col < em->vorder; col++) { - /* Incrementally build up p, pdv value */ - p += em->vcoeff[col] * (*data); - pdv += em->vcoeffDeriv[col] * (*data); - data += em->k; - } - /* Use p, pdv value to incrementally add up r, du, dv */ - retPoint[j] += em->ucoeff[row] * p; - retdu[j] += em->ucoeffDeriv[row] * p; - retdv[j] += em->ucoeff[row] * pdv; - } - } -} - -void OpenGLSurfaceEvaluator::inDoDomain2EM(surfEvalMachine *em, REAL u, REAL v, - REAL *retPoint) -{ - int j, row, col; - REAL the_uprime; - REAL the_vprime; - REAL p; - REAL *data; - - if((em->u2 == em->u1) || (em->v2 == em->v1)) - return; - the_uprime = (u - em->u1) / (em->u2 - em->u1); - the_vprime = (v - em->v1) / (em->v2 - em->v1); - - /* Compute coefficients for values and derivs */ - - /* Use already cached values if possible */ - if(em->uprime != the_uprime) { - inPreEvaluate(em->uorder, the_uprime, em->ucoeff); - em->uprime = the_uprime; - } - if (em->vprime != the_vprime) { - inPreEvaluate(em->vorder, the_vprime, em->vcoeff); - em->vprime = the_vprime; - } - - for (j = 0; j < em->k; j++) { - data=em->ctlPoints+j; - retPoint[j] = 0.0; - for (row = 0; row < em->uorder; row++) { - /* - ** Minor optimization. - ** The col == 0 part of the loop is extracted so we don't - ** have to initialize p and pdv to 0. - */ - p = em->vcoeff[0] * (*data); - data += em->k; - for (col = 1; col < em->vorder; col++) { - /* Incrementally build up p, pdv value */ - p += em->vcoeff[col] * (*data); - data += em->k; - } - /* Use p, pdv value to incrementally add up r, du, dv */ - retPoint[j] += em->ucoeff[row] * p; - } - } -} - - -void OpenGLSurfaceEvaluator::inDoEvalCoord2EM(REAL u, REAL v) -{ - REAL temp_vertex[5]; - REAL temp_normal[3]; - REAL temp_color[4]; - REAL temp_texcoord[4]; - - if(texcoord_flag) - { - inDoDomain2EM(&em_texcoord, u,v, temp_texcoord); - texcoordCallBack(temp_texcoord, userData); - } - if(color_flag) - { - inDoDomain2EM(&em_color, u,v, temp_color); - colorCallBack(temp_color, userData); - } - - if(normal_flag) //there is a normla map - { - inDoDomain2EM(&em_normal, u,v, temp_normal); - normalCallBack(temp_normal, userData); - - if(vertex_flag) - { - inDoDomain2EM(&em_vertex, u,v,temp_vertex); - if(em_vertex.k == 4) - { - temp_vertex[0] /= temp_vertex[3]; - temp_vertex[1] /= temp_vertex[3]; - temp_vertex[2] /= temp_vertex[3]; - } - temp_vertex[3]=u; - temp_vertex[4]=v; - vertexCallBack(temp_vertex, userData); - } - } - else if(auto_normal_flag) //no normal map but there is a normal callbackfunctin - { - REAL du[4]; - REAL dv[4]; - - /*compute homegeneous point and partial derivatives*/ - inDoDomain2WithDerivsEM(&em_vertex, u,v,temp_vertex,du,dv); - - if(em_vertex.k ==4) - inComputeFirstPartials(temp_vertex, du, dv); - -#ifdef AVOID_ZERO_NORMAL - if(myabs(dv[0]) <= MYZERO && myabs(dv[1]) <= MYZERO && myabs(dv[2]) <= MYZERO) - { - - REAL tempdu[4]; - REAL tempdata[4]; - REAL u1 = em_vertex.u1; - REAL u2 = em_vertex.u2; - if(u-MYDELTA*(u2-u1) < u1) - u = u+ MYDELTA*(u2-u1); - else - u = u-MYDELTA*(u2-u1); - inDoDomain2WithDerivsEM(&em_vertex,u,v, tempdata, tempdu, dv); - - if(em_vertex.k ==4) - inComputeFirstPartials(temp_vertex, du, dv); - } - else if(myabs(du[0]) <= MYZERO && myabs(du[1]) <= MYZERO && myabs(du[2]) <= MYZERO) - { - REAL tempdv[4]; - REAL tempdata[4]; - REAL v1 = em_vertex.v1; - REAL v2 = em_vertex.v2; - if(v-MYDELTA*(v2-v1) < v1) - v = v+ MYDELTA*(v2-v1); - else - v = v-MYDELTA*(v2-v1); - inDoDomain2WithDerivsEM(&em_vertex,u,v, tempdata, du, tempdv); - - if(em_vertex.k ==4) - inComputeFirstPartials(temp_vertex, du, dv); - } -#endif - - /*compute normal*/ - switch(em_vertex.k){ - case 3: - - inComputeNormal2(du, dv, temp_normal); - break; - case 4: - -// inComputeFirstPartials(temp_vertex, du, dv); - inComputeNormal2(du, dv, temp_normal); - - /*transform the homegeneous coordinate of retPoint into inhomogenous one*/ - temp_vertex[0] /= temp_vertex[3]; - temp_vertex[1] /= temp_vertex[3]; - temp_vertex[2] /= temp_vertex[3]; - break; - } - normalCallBack(temp_normal, userData); - temp_vertex[3] = u; - temp_vertex[4] = v; - vertexCallBack(temp_vertex, userData); - }/*end if auto_normal*/ - else //no normal map, and no normal callback function - { - if(vertex_flag) - { - inDoDomain2EM(&em_vertex, u,v,temp_vertex); - if(em_vertex.k == 4) - { - temp_vertex[0] /= temp_vertex[3]; - temp_vertex[1] /= temp_vertex[3]; - temp_vertex[2] /= temp_vertex[3]; - } - temp_vertex[3] = u; - temp_vertex[4] = v; - vertexCallBack(temp_vertex, userData); - } - } -} - - -void OpenGLSurfaceEvaluator::inBPMEvalEM(bezierPatchMesh* bpm) -{ - int i,j,k; - float u,v; - - int ustride; - int vstride; - -#ifdef USE_LOD - if(bpm->bpatch != NULL) - { - bezierPatch* p=bpm->bpatch; - ustride = p->dimension * p->vorder; - vstride = p->dimension; - - glMap2f( (p->dimension == 3)? GL_MAP2_VERTEX_3 : GL_MAP2_VERTEX_4, - p->umin, - p->umax, - ustride, - p->uorder, - p->vmin, - p->vmax, - vstride, - p->vorder, - p->ctlpoints); - - -/* - inMap2fEM(0, p->dimension, - p->umin, - p->umax, - ustride, - p->uorder, - p->vmin, - p->vmax, - vstride, - p->vorder, - p->ctlpoints); -*/ - } -#else - - if(bpm->bpatch != NULL){ - bezierPatch* p = bpm->bpatch; - ustride = p->dimension * p->vorder; - vstride = p->dimension; - inMap2fEM(0, p->dimension, - p->umin, - p->umax, - ustride, - p->uorder, - p->vmin, - p->vmax, - vstride, - p->vorder, - p->ctlpoints); - } - if(bpm->bpatch_normal != NULL){ - bezierPatch* p = bpm->bpatch_normal; - ustride = p->dimension * p->vorder; - vstride = p->dimension; - inMap2fEM(1, p->dimension, - p->umin, - p->umax, - ustride, - p->uorder, - p->vmin, - p->vmax, - vstride, - p->vorder, - p->ctlpoints); - } - if(bpm->bpatch_color != NULL){ - bezierPatch* p = bpm->bpatch_color; - ustride = p->dimension * p->vorder; - vstride = p->dimension; - inMap2fEM(2, p->dimension, - p->umin, - p->umax, - ustride, - p->uorder, - p->vmin, - p->vmax, - vstride, - p->vorder, - p->ctlpoints); - } - if(bpm->bpatch_texcoord != NULL){ - bezierPatch* p = bpm->bpatch_texcoord; - ustride = p->dimension * p->vorder; - vstride = p->dimension; - inMap2fEM(3, p->dimension, - p->umin, - p->umax, - ustride, - p->uorder, - p->vmin, - p->vmax, - vstride, - p->vorder, - p->ctlpoints); - } -#endif - - - k=0; - for(i=0; iindex_length_array; i++) - { -#ifdef USE_LOD - if(bpm->type_array[i] == GL_POLYGON) //a mesh - { - GLfloat *temp = bpm->UVarray+k; - GLfloat u0 = temp[0]; - GLfloat v0 = temp[1]; - GLfloat u1 = temp[2]; - GLfloat v1 = temp[3]; - GLint nu = (GLint) ( temp[4]); - GLint nv = (GLint) ( temp[5]); - GLint umin = (GLint) ( temp[6]); - GLint vmin = (GLint) ( temp[7]); - GLint umax = (GLint) ( temp[8]); - GLint vmax = (GLint) ( temp[9]); - - glMapGrid2f(LOD_eval_level*nu, u0, u1, LOD_eval_level*nv, v0, v1); - glEvalMesh2(GL_FILL, LOD_eval_level*umin, LOD_eval_level*umax, LOD_eval_level*vmin, LOD_eval_level*vmax); - } - else - { - LOD_eval(bpm->length_array[i], bpm->UVarray+k, bpm->type_array[i], - 0 - ); - } - k+= 2*bpm->length_array[i]; - -#else //undef USE_LOD - -#ifdef CRACK_TEST -if( bpm->bpatch->umin == 2 && bpm->bpatch->umax == 3 - && bpm->bpatch->vmin ==2 && bpm->bpatch->vmax == 3) -{ -REAL vertex[4]; -REAL normal[4]; -#ifdef DEBUG -printf("***number ****1\n"); -#endif - -beginCallBack(GL_QUAD_STRIP, NULL); -inDoEvalCoord2EM(3.0, 3.0); -inDoEvalCoord2EM(2.0, 3.0); -inDoEvalCoord2EM(3.0, 2.7); -inDoEvalCoord2EM(2.0, 2.7); -inDoEvalCoord2EM(3.0, 2.0); -inDoEvalCoord2EM(2.0, 2.0); -endCallBack(NULL); - -beginCallBack(GL_TRIANGLE_STRIP, NULL); -inDoEvalCoord2EM(2.0, 3.0); -inDoEvalCoord2EM(2.0, 2.0); -inDoEvalCoord2EM(2.0, 2.7); -endCallBack(NULL); - -} -if( bpm->bpatch->umin == 1 && bpm->bpatch->umax == 2 - && bpm->bpatch->vmin ==2 && bpm->bpatch->vmax == 3) -{ -#ifdef DEBUG -printf("***number 3\n"); -#endif -beginCallBack(GL_QUAD_STRIP, NULL); -inDoEvalCoord2EM(2.0, 3.0); -inDoEvalCoord2EM(1.0, 3.0); -inDoEvalCoord2EM(2.0, 2.3); -inDoEvalCoord2EM(1.0, 2.3); -inDoEvalCoord2EM(2.0, 2.0); -inDoEvalCoord2EM(1.0, 2.0); -endCallBack(NULL); - -beginCallBack(GL_TRIANGLE_STRIP, NULL); -inDoEvalCoord2EM(2.0, 2.3); -inDoEvalCoord2EM(2.0, 2.0); -inDoEvalCoord2EM(2.0, 3.0); -endCallBack(NULL); - -} -return; -#endif //CRACK_TEST - - beginCallBack(bpm->type_array[i], userData); - - for(j=0; jlength_array[i]; j++) - { - u = bpm->UVarray[k]; - v = bpm->UVarray[k+1]; -#ifdef USE_LOD - LOD_EVAL_COORD(u,v); -// glEvalCoord2f(u,v); -#else - -#ifdef GENERIC_TEST - float temp_normal[3]; - float temp_vertex[3]; - if(temp_signal == 0) - { - gTessVertexSphere(u,v, temp_normal, temp_vertex); -//printf("normal=(%f,%f,%f)\n", temp_normal[0], temp_normal[1], temp_normal[2])//printf("veretx=(%f,%f,%f)\n", temp_vertex[0], temp_vertex[1], temp_vertex[2]); - normalCallBack(temp_normal, userData); - vertexCallBack(temp_vertex, userData); - } - else if(temp_signal == 1) - { - gTessVertexCyl(u,v, temp_normal, temp_vertex); -//printf("normal=(%f,%f,%f)\n", temp_normal[0], temp_normal[1], temp_normal[2])//printf("veretx=(%f,%f,%f)\n", temp_vertex[0], temp_vertex[1], temp_vertex[2]); - normalCallBack(temp_normal, userData); - vertexCallBack(temp_vertex, userData); - } - else -#endif //GENERIC_TEST - - inDoEvalCoord2EM(u,v); - -#endif //USE_LOD - - k += 2; - } - endCallBack(userData); - -#endif //USE_LOD - } -} - -void OpenGLSurfaceEvaluator::inBPMListEvalEM(bezierPatchMesh* list) -{ - bezierPatchMesh* temp; - for(temp = list; temp != NULL; temp = temp->next) - { - inBPMEvalEM(temp); - } -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/mystdio.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/mystdio.h deleted file mode 100644 index 60bd93aec..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/mystdio.h +++ /dev/null @@ -1,66 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * mystdio.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/mystdio.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glumystdio_h_ -#define __glumystdio_h_ - -#ifdef STANDALONE -inline void dprintf( char *, ... ) { } -#endif - -#ifdef LIBRARYBUILD -#ifndef NDEBUG -#include -#define dprintf printf -#else -inline void dprintf( char *, ... ) { } -#endif -#endif - -#ifdef GLBUILD -inline void dprintf( char *, ... ) { } -#endif - -#ifndef NULL -#define NULL 0 -#endif - -#endif /* __glumystdio_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/mystdlib.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/mystdlib.h deleted file mode 100644 index 88471ab1b..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/mystdlib.h +++ /dev/null @@ -1,63 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * mystdlib.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/interface/mystdlib.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glumystdlib_h_ -#define __glumystdlib_h_ - -#ifdef STANDALONE -typedef unsigned int size_t; -extern "C" void abort( void ); -extern "C" void * malloc( size_t ); -extern "C" void free( void * ); -#endif - -#ifdef LIBRARYBUILD -#include -#endif - -#ifdef GLBUILD -typedef unsigned int size_t; -extern "C" void abort( void ); -extern "C" void * malloc( size_t ); -extern "C" void free( void * ); -#endif - -#endif /* __glumystdlib_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/GNUmakefile b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/GNUmakefile deleted file mode 100644 index 6b90f05af..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/GNUmakefile +++ /dev/null @@ -1,160 +0,0 @@ -#!gmake -# -# License Applicability. Except to the extent portions of this file are -# made subject to an alternative license as permitted in the SGI Free -# Software License B, Version 1.1 (the "License"), the contents of this -# file are subject only to the provisions of the License. You may not use -# this file except in compliance with the License. You may obtain a copy -# of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -# Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -# -# http://oss.sgi.com/projects/FreeB -# -# Note that, as provided in the License, the Software is distributed on an -# "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -# DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -# CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -# PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -# -# Original Code. The Original Code is: OpenGL Sample Implementation, -# Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -# Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -# Copyright in any portions created by third parties is as indicated -# elsewhere herein. All Rights Reserved. -# -# Additional Notice Provisions: The application programming interfaces -# established by SGI in conjunction with the Original Code are The -# OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -# April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -# 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -# Window System(R) (Version 1.3), released October 19, 1998. This software -# was created using the OpenGL(R) version 1.2.1 Sample Implementation -# published by SGI, but has not been independently verified as being -# compliant with the OpenGL(R) version 1.2.1 Specification. -# -# $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ -# $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/GNUmakefile,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - -include $(ROOT)/usr/include/make/commondefs - -TARGET = libinternals.a - -TARGETS = $(TARGET) - -LCXXDEFS = -DNDEBUG -DLIBRARYBUILD -LCXXINCS = -I../nurbtess -I../interface -I../../include - -HFILES = \ - arc.h \ - arcsorter.h \ - arctess.h \ - backend.h \ - basiccrveval.h \ - basicsurfeval.h \ - bezierarc.h \ - bin.h \ - bufpool.h \ - cachingeval.h \ - coveandtiler.h \ - curve.h \ - curvelist.h \ - defines.h \ - displaylist.h \ - displaymode.h \ - flist.h \ - flistsorter.h \ - glimports.h \ - gridline.h \ - gridtrimvertex.h \ - gridvertex.h \ - hull.h \ - jarcloc.h \ - knotvector.h \ - mapdesc.h \ - maplist.h \ - mesher.h \ - monotonizer.h \ - myassert.h \ - mymath.h \ - mysetjmp.h \ - mystdio.h \ - mystdlib.h \ - mystring.h \ - nurbsconsts.h \ - nurbstess.h \ - patch.h \ - patchlist.h \ - pwlarc.h \ - quilt.h \ - reader.h \ - renderhints.h \ - simplemath.h \ - slicer.h \ - sorter.h \ - subdivider.h \ - trimline.h \ - trimregion.h \ - trimvertex.h \ - trimvertpool.h \ - types.h \ - uarray.h \ - varray.h \ - dataTransform.h \ - $(NULL) - -CCFILES = \ - arc.cc \ - arcsorter.cc \ - arctess.cc \ - backend.cc \ - basiccrveval.cc \ - basicsurfeval.cc \ - bin.cc \ - bufpool.cc \ - cachingeval.cc \ - ccw.cc \ - coveandtiler.cc \ - curve.cc \ - curvelist.cc \ - curvesub.cc \ - displaylist.cc \ - flist.cc \ - flistsorter.cc \ - hull.cc \ - intersect.cc \ - knotvector.cc \ - mapdesc.cc \ - mapdescv.cc \ - maplist.cc \ - mesher.cc \ - monotonizer.cc \ - mycode.cc \ - nurbsinterfac.cc \ - nurbstess.cc \ - patch.cc \ - patchlist.cc \ - quilt.cc \ - reader.cc \ - renderhints.cc \ - slicer.cc \ - sorter.cc \ - splitarcs.cc \ - subdivider.cc \ - tobezier.cc \ - trimline.cc \ - trimregion.cc \ - trimvertpool.cc \ - uarray.cc \ - varray.cc \ - dataTransform.cc \ - monoTriangulationBackend.cc \ - $(NULL) - -default libs libs_install install: $(TARGET) - -headers headers_install apps: - -$(TARGET): $(OBJECTS) - $(AR) crl $@ $(OBJECTS); - -include $(COMMONRULES) diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/Imakefile b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/Imakefile deleted file mode 100644 index 968384985..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/Imakefile +++ /dev/null @@ -1,98 +0,0 @@ -XCOMM License Applicability. Except to the extent portions of this file are -XCOMM made subject to an alternative license as permitted in the SGI Free -XCOMM Software License B, Version 1.1 (the "License"), the contents of this -XCOMM file are subject only to the provisions of the License. You may not use -XCOMM this file except in compliance with the License. You may obtain a copy -XCOMM of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -XCOMM Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -XCOMM -XCOMM http://oss.sgi.com/projects/FreeB -XCOMM -XCOMM Note that, as provided in the License, the Software is distributed on an -XCOMM "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -XCOMM DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -XCOMM CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -XCOMM PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -XCOMM -XCOMM Original Code. The Original Code is: OpenGL Sample Implementation, -XCOMM Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -XCOMM Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -XCOMM Copyright in any portions created by third parties is as indicated -XCOMM elsewhere herein. All Rights Reserved. -XCOMM -XCOMM Additional Notice Provisions: The application programming interfaces -XCOMM established by SGI in conjunction with the Original Code are The -XCOMM OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -XCOMM April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -XCOMM 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -XCOMM Window System(R) (Version 1.3), released October 19, 1998. This software -XCOMM was created using the OpenGL(R) version 1.2.1 Sample Implementation -XCOMM published by SGI, but has not been independently verified as being -XCOMM compliant with the OpenGL(R) version 1.2.1 Specification. -XCOMM - -#include - -OBJS = \ - arc.o \ - arcsorter.o \ - arctess.o \ - backend.o \ - basiccrveval.o \ - basicsurfeval.o \ - bin.o \ - bufpool.o \ - cachingeval.o \ - ccw.o \ - coveandtiler.o \ - curve.o \ - curvelist.o \ - curvesub.o \ - dataTransform.o \ - displaylist.o \ - flist.o \ - flistsorter.o \ - hull.o \ - intersect.o \ - knotvector.o \ - mapdesc.o \ - mapdescv.o \ - maplist.o \ - mesher.o \ - monoTriangulationBackend.o \ - monotonizer.o \ - mycode.o \ - nurbsinterfac.o \ - nurbstess.o \ - patch.o \ - patchlist.o \ - quilt.o \ - reader.o \ - renderhints.o \ - slicer.o \ - sorter.o \ - splitarcs.o \ - subdivider.o \ - tobezier.o \ - trimline.o \ - trimregion.o \ - trimvertpool.o \ - uarray.o \ - varray.o - -INCLUDES = \ - -I../nurbtess \ - -I../../include \ - -I$(TOP)/include \ - -I$(TOP)/include/GL - -DEFINES = \ - -DLIBRARYBUILD \ - -DNDEBUG - -NormalCplusplusObjectRule() - -NormalLibraryTarget(internals, $(OBJS)) - -DependTarget() -CleanTarget() diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arc.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arc.cc deleted file mode 100644 index dc919aeb7..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arc.cc +++ /dev/null @@ -1,359 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * arc.c++ - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arc.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ -/* $XFree86$ */ - -#include -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "arc.h" -#include "bin.h" -#include "bezierarc.h" -#include "pwlarc.h" -#include "simplemath.h" - -/* local preprocessor definitions */ -#define ZERO 0.00001/*0.000001*/ - -const int Arc::bezier_tag = (1<<13); -const int Arc::arc_tag = (1<<3); -const int Arc::tail_tag = (1<<6); - -/*-------------------------------------------------------------------------- - * makeSide - attach a pwl arc to an arc and mark it as a border arc - *-------------------------------------------------------------------------- - */ - -void -Arc::makeSide( PwlArc *pwl, arc_side side ) -{ - assert( pwl != 0); - assert( pwlArc == 0 ); - assert( pwl->npts > 0 ); - assert( pwl->pts != 0); - pwlArc = pwl; - clearbezier(); - setside( side ); -} - - -/*-------------------------------------------------------------------------- - * numpts - count number of points on arc loop - *-------------------------------------------------------------------------- - */ - -int -Arc::numpts( void ) -{ - Arc_ptr jarc = this; - int npts = 0; - do { - npts += jarc->pwlArc->npts; - jarc = jarc->next; - } while( jarc != this ); - return npts; -} - -/*-------------------------------------------------------------------------- - * markverts - mark each point with id of arc - *-------------------------------------------------------------------------- - */ - -void -Arc::markverts( void ) -{ - Arc_ptr jarc = this; - - do { - TrimVertex *p = jarc->pwlArc->pts; - for( int i=0; ipwlArc->npts; i++ ) - p[i].nuid = jarc->nuid; - jarc = jarc->next; - } while( jarc != this ); -} - -/*-------------------------------------------------------------------------- - * getextrema - find axis extrema on arc loop - *-------------------------------------------------------------------------- - */ - -void -Arc::getextrema( Arc_ptr extrema[4] ) -{ - REAL leftpt, botpt, rightpt, toppt; - - extrema[0] = extrema[1] = extrema[2] = extrema[3] = this; - - leftpt = rightpt = this->tail()[0]; - botpt = toppt = this->tail()[1]; - - for( Arc_ptr jarc = this->next; jarc != this; jarc = jarc->next ) { - if ( jarc->tail()[0] < leftpt || - (jarc->tail()[0] <= leftpt && jarc->rhead()[0]<=leftpt)) { - leftpt = jarc->pwlArc->pts->param[0]; - extrema[1] = jarc; - } - if ( jarc->tail()[0] > rightpt || - (jarc->tail()[0] >= rightpt && jarc->rhead()[0] >= rightpt)) { - rightpt = jarc->pwlArc->pts->param[0]; - extrema[3] = jarc; - } - if ( jarc->tail()[1] < botpt || - (jarc->tail()[1] <= botpt && jarc->rhead()[1] <= botpt )) { - botpt = jarc->pwlArc->pts->param[1]; - extrema[2] = jarc; - } - if ( jarc->tail()[1] > toppt || - (jarc->tail()[1] >= toppt && jarc->rhead()[1] >= toppt)) { - toppt = jarc->pwlArc->pts->param[1]; - extrema[0] = jarc; - } - } -} - - -/*------------------------------------------------------------------------- - * show - print to the stdout the vertices of a pwl arc - *------------------------------------------------------------------------- - */ - -void -Arc::show() -{ -#ifndef NDEBUG - dprintf( "\tPWLARC NP: %d FL: 1\n", pwlArc->npts ); - for( int i = 0; i < pwlArc->npts; i++ ) { - dprintf( "\t\tVERTEX %f %f\n", pwlArc->pts[i].param[0], - pwlArc->pts[i].param[1] ); - } -#endif -} - -/*------------------------------------------------------------------------- - * print - print out the vertices of all pwl arcs on a loop - *------------------------------------------------------------------------- - */ - -void -Arc::print( void ) -{ - Arc_ptr jarc = this; - - if( ! this ) { -#ifndef NDEBUG - dprintf( "\n\nEMPTY TRIM\n\n" ); -#endif - return; - } - -#ifndef NDEBUG - dprintf( "BGNTRIM\n" ); -#endif - do { - jarc->show( ); - jarc = jarc->next; - } while (jarc != this); -#ifndef NDEBUG - dprintf("ENDTRIM\n" ); -#endif -} - -/*------------------------------------------------------------------------- - * isDisconnected - check if tail of arc and head of prev meet - *------------------------------------------------------------------------- - */ - -int -Arc::isDisconnected( void ) -{ - if( pwlArc == 0 ) return 0; - if( prev->pwlArc == 0 ) return 0; - - REAL *p0 = tail(); - REAL *p1 = prev->rhead(); - - if( ((p0[0] - p1[0]) > ZERO) || ((p1[0] - p0[0]) > ZERO) || - ((p0[1] - p1[1]) > ZERO) || ((p1[1] - p0[1]) > ZERO) ) { -#ifndef NDEBUG - dprintf( "x coord = %f %f %f\n", p0[0], p1[0], p0[0] - p1[0] ); - dprintf( "y coord = %f %f %f\n", p0[1], p1[1], p0[1] - p1[1] ); -#endif - return 1; - } else { - /* average two points together */ - p0[0] = p1[0] = (p1[0] + p0[0]) * 0.5; - p0[1] = p1[1] = (p1[1] + p0[1]) * 0.5; - return 0; - } -} - -#ifndef NDEBUG -/*------------------------------------------------------------------------- - * neq_vert - assert that two 2D vertices are not equal - *------------------------------------------------------------------------- - */ - -inline static int -neq_vert( REAL *v1, REAL *v2 ) -{ - return ((v1[0] != v2[0]) || (v1[1] != v2[1] )) ? 1 : 0; -} -#endif - -/*------------------------------------------------------------------------- - * check - verify consistency of a loop, including - * 1) if pwl, no two consecutive vertices are identical - * 2) the circular link pointers are valid - * 3) the geometric info at the head and tail are consistent - *------------------------------------------------------------------------- - */ - -int -Arc::check( void ) -{ - if( this == 0 ) return 1; - Arc_ptr jarc = this; - do { - assert( (jarc->pwlArc != 0) || (jarc->bezierArc != 0) ); - - if (jarc->prev == 0 || jarc->next == 0) { -#ifndef NDEBUG - dprintf( "checkjarc:null next/prev pointer\n"); - jarc->print( ); -#endif - return 0; - } - - if (jarc->next->prev != jarc) { -#ifndef NDEBUG - dprintf( "checkjarc: pointer linkage screwed up\n"); - jarc->print( ); -#endif - return 0; - } - - if( jarc->pwlArc ) { -#ifndef NDEBUG - assert( jarc->pwlArc->npts >= 1 ); - assert( jarc->pwlArc->npts < 100000 ); -/* - for( int i=0; i < jarc->pwlArc->npts-1; i++ ) - assert( neq_vert( jarc->pwlArc->pts[i].param, - jarc->pwlArc->pts[i+1].param) ); -*/ -#endif - if( jarc->prev->pwlArc ) { - if( jarc->tail()[1] != jarc->prev->rhead()[1] ) { -#ifndef NDEBUG - dprintf( "checkjarc: geometric linkage screwed up 1\n"); - jarc->prev->show(); - jarc->show(); -#endif - return 0; - } - if( jarc->tail()[0] != jarc->prev->rhead()[0] ) { - -#ifndef NDEBUG - dprintf( "checkjarc: geometric linkage screwed up 2\n"); - jarc->prev->show(); - jarc->show(); -#endif - return 0; - } - } - if( jarc->next->pwlArc ) { - if( jarc->next->tail()[0] != jarc->rhead()[0] ) { -#ifndef NDEBUG - dprintf( "checkjarc: geometric linkage screwed up 3\n"); - jarc->show(); - jarc->next->show(); -#endif - return 0; - } - if( jarc->next->tail()[1] != jarc->rhead()[1] ) { -#ifndef NDEBUG - dprintf( "checkjarc: geometric linkage screwed up 4\n"); - jarc->show(); - jarc->next->show(); -#endif - return 0; - } - } - if( jarc->isbezier() ) { - assert( jarc->pwlArc->npts == 2 ); - assert( (jarc->pwlArc->pts[0].param[0] == \ - jarc->pwlArc->pts[1].param[0]) ||\ - (jarc->pwlArc->pts[0].param[1] == \ - jarc->pwlArc->pts[1].param[1]) ); - } - } - jarc = jarc->next; - } while (jarc != this); - return 1; -} - - -#define TOL 0.00001 - -long tooclose( REAL x, REAL y ) -{ - return (abs(x-y) < TOL) ? 1 : 0; -} - - -/*-------------------------------------------------------------------------- - * append - append a jordan arc to a circularly linked list - *-------------------------------------------------------------------------- - */ - -Arc_ptr -Arc::append( Arc_ptr jarc ) -{ - if( jarc != 0 ) { - next = jarc->next; - prev = jarc; - next->prev = prev->next = this; - } else { - next = prev = this; - } - return this; -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arc.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arc.h deleted file mode 100644 index ae1ef8a91..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arc.h +++ /dev/null @@ -1,139 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * arc.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arc.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#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; -class 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 ) -{ - 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 ) -{ - bezierArc = NULL; - pwlArc = NULL; - type = 0; - setside( side ); - nuid = _nuid; -} - -#endif /* __gluarc_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arcsorter.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arcsorter.cc deleted file mode 100644 index 6a4b89560..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arcsorter.cc +++ /dev/null @@ -1,174 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * arcsorter.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arcsorter.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __gluarcsorter_c_ -#define __gluarcsorter_c_ - -#include "glimports.h" -#include "arc.h" -#include "arcsorter.h" -#include "subdivider.h" - -ArcSorter::ArcSorter(Subdivider &s) : Sorter( sizeof( Arc ** ) ), subdivider(s) -{ -} - -int -ArcSorter::qscmp( char *, char * ) -{ - dprintf( "ArcSorter::qscmp: pure virtual called\n" ); - return 0; -} - -void -ArcSorter::qsort( Arc **a, int n ) -{ - Sorter::qsort( (void *) a, n ); -} - -void -ArcSorter::qsexc( char *i, char *j )// i<-j, j<-i -{ - Arc **jarc1 = (Arc **) i; - Arc **jarc2 = (Arc **) j; - Arc *tmp = *jarc1; - *jarc1 = *jarc2; - *jarc2 = tmp; -} - -void -ArcSorter::qstexc( char *i, char *j, char *k )// i<-k, k<-j, j<-i -{ - Arc **jarc1 = (Arc **) i; - Arc **jarc2 = (Arc **) j; - Arc **jarc3 = (Arc **) k; - Arc *tmp = *jarc1; - *jarc1 = *jarc3; - *jarc3 = *jarc2; - *jarc2 = tmp; -} - - -ArcSdirSorter::ArcSdirSorter( Subdivider &s ) : ArcSorter(s) -{ -} - -int -ArcSdirSorter::qscmp( char *i, char *j ) -{ - Arc *jarc1 = *(Arc **) i; - Arc *jarc2 = *(Arc **) j; - - int v1 = (jarc1->getitail() ? 0 : (jarc1->pwlArc->npts - 1)); - int v2 = (jarc2->getitail() ? 0 : (jarc2->pwlArc->npts - 1)); - - REAL diff = jarc1->pwlArc->pts[v1].param[1] - - jarc2->pwlArc->pts[v2].param[1]; - - if( diff < 0.0) - return -1; - else if( diff > 0.0) - return 1; - else { - if( v1 == 0 ) { - if( jarc2->tail()[0] < jarc1->tail()[0] ) { - return subdivider.ccwTurn_sl( jarc2, jarc1 ) ? 1 : -1; - } else { - return subdivider.ccwTurn_sr( jarc2, jarc1 ) ? -1 : 1; - } - } else { - if( jarc2->head()[0] < jarc1->head()[0] ) { - return subdivider.ccwTurn_sl( jarc1, jarc2 ) ? -1 : 1; - } else { - return subdivider.ccwTurn_sr( jarc1, jarc2 ) ? 1 : -1; - } - } - } -} - -ArcTdirSorter::ArcTdirSorter( Subdivider &s ) : ArcSorter(s) -{ -} - -/*---------------------------------------------------------------------------- - * ArcTdirSorter::qscmp - - * compare two axis monotone arcs that are incident - * to the line T == compare_value. Determine which of the - * two intersects that line with a LESSER S value. If - * jarc1 does, return 1. If jarc2 does, return -1. - *---------------------------------------------------------------------------- - */ -int -ArcTdirSorter::qscmp( char *i, char *j ) -{ - Arc *jarc1 = *(Arc **) i; - Arc *jarc2 = *(Arc **) j; - - int v1 = (jarc1->getitail() ? 0 : (jarc1->pwlArc->npts - 1)); - int v2 = (jarc2->getitail() ? 0 : (jarc2->pwlArc->npts - 1)); - - REAL diff = jarc1->pwlArc->pts[v1].param[0] - - jarc2->pwlArc->pts[v2].param[0]; - - if( diff < 0.0) - return 1; - else if( diff > 0.0) - return -1; - else { - if( v1 == 0 ) { - if (jarc2->tail()[1] < jarc1->tail()[1]) { - return subdivider.ccwTurn_tl( jarc2, jarc1 ) ? 1 : -1; - } else { - return subdivider.ccwTurn_tr( jarc2, jarc1 ) ? -1 : 1; - } - } else { - if( jarc2->head()[1] < jarc1->head()[1] ) { - return subdivider.ccwTurn_tl( jarc1, jarc2 ) ? -1 : 1; - } else { - return subdivider.ccwTurn_tr( jarc1, jarc2 ) ? 1 : -1; - } - } - } -} - - - -#endif /* __gluarcsorter_c_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arcsorter.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arcsorter.h deleted file mode 100644 index 7a20ad928..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arcsorter.h +++ /dev/null @@ -1,79 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * arcsorter.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arcsorter.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __gluarcsorter_h_ -#define __gluarcsorter_h_ - -#include "sorter.h" -#include "arcsorter.h" - -class Arc; -class Subdivider; - -class ArcSorter : private Sorter { -public: - ArcSorter(Subdivider &); - void qsort( Arc **a, int n ); -protected: - virtual int qscmp( char *, char * ); - Subdivider& subdivider; -private: - void qsexc( char *i, char *j ); // i<-j, j<-i - void qstexc( char *i, char *j, char *k ); // i<-k, k<-j, j<-i -}; - - -class ArcSdirSorter : public ArcSorter { -public: - ArcSdirSorter( Subdivider & ); -private: - int qscmp( char *, char * ); -}; - - -class ArcTdirSorter : public ArcSorter { -public: - ArcTdirSorter( Subdivider & ); -private: - int qscmp( char *, char * ); -}; - -#endif /* __gluarcsorter_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arctess.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arctess.cc deleted file mode 100644 index 3eeaa5f9f..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arctess.cc +++ /dev/null @@ -1,614 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ -/* $XFree86$ */ - -/* - * arctessellator.c++ - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arctess.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "arctess.h" -#include "bufpool.h" -#include "simplemath.h" -#include "bezierarc.h" -#include "trimvertex.h" -#include "trimvertpool.h" - -#define NOELIMINATION - -#define steps_function(large, small, rate) (max(1, 1+ (int) ((large-small)/rate))); - -/*----------------------------------------------------------------------------- - * ArcTessellator - construct an ArcTessellator - *----------------------------------------------------------------------------- - */ - -ArcTessellator::ArcTessellator( TrimVertexPool& t, Pool& p ) - : trimvertexpool(t), pwlarcpool(p) -{ -} - -/*----------------------------------------------------------------------------- - * ~ArcTessellator - destroy an ArcTessellator - *----------------------------------------------------------------------------- - */ - -ArcTessellator::~ArcTessellator( void ) -{ -} - -/*----------------------------------------------------------------------------- - * bezier - construct a bezier arc and attach it to an Arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::bezier( Arc *arc, REAL s1, REAL s2, REAL t1, REAL t2 ) -{ - assert( arc != 0 ); - assert( ! arc->isTessellated() ); - -#ifndef NDEBUG - switch( arc->getside() ) { - case arc_left: - assert( s1 == s2 ); - assert( t2 < t1 ); - break; - case arc_right: - assert( s1 == s2 ); - assert( t1 < t2 ); - break; - case arc_top: - assert( t1 == t2 ); - assert( s2 < s1 ); - break; - case arc_bottom: - assert( t1 == t2 ); - assert( s1 < s2 ); - break; - case arc_none: - (void) abort(); - break; - } -#endif - - TrimVertex *p = trimvertexpool.get(2); - arc->pwlArc = new(pwlarcpool) PwlArc( 2, p ); - p[0].param[0] = s1; - p[0].param[1] = t1; - p[1].param[0] = s2; - p[1].param[1] = t2; - assert( (s1 == s2) || (t1 == t2) ); - arc->setbezier(); -} - - -/*----------------------------------------------------------------------------- - * pwl_left - construct a left boundary pwl arc and attach it to an arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::pwl_left( Arc *arc, REAL s, REAL t1, REAL t2, REAL rate ) -{ - assert( t2 < t1 ); - -/* if(rate <= 0.06) rate = 0.06;*/ -/* int nsteps = 1 + (int) ((t1 - t2) / rate ); */ - int nsteps = steps_function(t1, t2, rate); - - - REAL stepsize = (t1 - t2) / (REAL) nsteps; - - TrimVertex *newvert = trimvertexpool.get( nsteps+1 ); - int i; - for( i = nsteps; i > 0; i-- ) { - newvert[i].param[0] = s; - newvert[i].param[1] = t2; - t2 += stepsize; - } - newvert[i].param[0] = s; - newvert[i].param[1] = t1; - - arc->makeSide( new(pwlarcpool) PwlArc( nsteps+1, newvert ), arc_left ); -} - -/*----------------------------------------------------------------------------- - * pwl_right - construct a right boundary pwl arc and attach it to an arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::pwl_right( Arc *arc, REAL s, REAL t1, REAL t2, REAL rate ) -{ - assert( t1 < t2 ); - -/* if(rate <= 0.06) rate = 0.06;*/ - -/* int nsteps = 1 + (int) ((t2 - t1) / rate ); */ - int nsteps = steps_function(t2,t1,rate); - REAL stepsize = (t2 - t1) / (REAL) nsteps; - - TrimVertex *newvert = trimvertexpool.get( nsteps+1 ); - int i; - for( i = 0; i < nsteps; i++ ) { - newvert[i].param[0] = s; - newvert[i].param[1] = t1; - t1 += stepsize; - } - newvert[i].param[0] = s; - newvert[i].param[1] = t2; - - arc->makeSide( new(pwlarcpool) PwlArc( nsteps+1, newvert ), arc_right ); -} - - -/*----------------------------------------------------------------------------- - * pwl_top - construct a top boundary pwl arc and attach it to an arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::pwl_top( Arc *arc, REAL t, REAL s1, REAL s2, REAL rate ) -{ - assert( s2 < s1 ); - -/* if(rate <= 0.06) rate = 0.06;*/ - -/* int nsteps = 1 + (int) ((s1 - s2) / rate ); */ - int nsteps = steps_function(s1,s2,rate); - REAL stepsize = (s1 - s2) / (REAL) nsteps; - - TrimVertex *newvert = trimvertexpool.get( nsteps+1 ); - int i; - for( i = nsteps; i > 0; i-- ) { - newvert[i].param[0] = s2; - newvert[i].param[1] = t; - s2 += stepsize; - } - newvert[i].param[0] = s1; - newvert[i].param[1] = t; - - arc->makeSide( new(pwlarcpool) PwlArc( nsteps+1, newvert ), arc_top ); -} - -/*----------------------------------------------------------------------------- - * pwl_bottom - construct a bottom boundary pwl arc and attach it to an arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::pwl_bottom( Arc *arc, REAL t, REAL s1, REAL s2, REAL rate ) -{ - assert( s1 < s2 ); - -/* if(rate <= 0.06) rate = 0.06;*/ - -/* int nsteps = 1 + (int) ((s2 - s1) / rate ); */ - int nsteps = steps_function(s2,s1,rate); - REAL stepsize = (s2 - s1) / (REAL) nsteps; - - TrimVertex *newvert = trimvertexpool.get( nsteps+1 ); - int i; - for( i = 0; i < nsteps; i++ ) { - newvert[i].param[0] = s1; - newvert[i].param[1] = t; - s1 += stepsize; - } - newvert[i].param[0] = s2; - newvert[i].param[1] = t; - - arc->makeSide( new(pwlarcpool) PwlArc( nsteps+1, newvert ), arc_bottom ); -} - -/*----------------------------------------------------------------------------- - * pwl - construct a pwl arc and attach it to an arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::pwl( Arc *arc, REAL s1, REAL s2, REAL t1, REAL t2, REAL rate ) -{ - -/* if(rate <= 0.06) rate = 0.06;*/ - - int snsteps = 1 + (int) (abs(s2 - s1) / rate ); - int tnsteps = 1 + (int) (abs(t2 - t1) / rate ); - int nsteps = max(1,max( snsteps, tnsteps )); - - REAL sstepsize = (s2 - s1) / (REAL) nsteps; - REAL tstepsize = (t2 - t1) / (REAL) nsteps; - TrimVertex *newvert = trimvertexpool.get( nsteps+1 ); - long i; - for( i = 0; i < nsteps; i++ ) { - newvert[i].param[0] = s1; - newvert[i].param[1] = t1; - s1 += sstepsize; - t1 += tstepsize; - } - newvert[i].param[0] = s2; - newvert[i].param[1] = t2; - - /* arc->makeSide( new(pwlarcpool) PwlArc( nsteps+1, newvert ), arc_bottom ); */ - arc->pwlArc = new(pwlarcpool) PwlArc( nsteps+1, newvert ); - - arc->clearbezier(); - arc->clearside( ); -} - - -/*----------------------------------------------------------------------------- - * tessellateLinear - constuct a linear pwl arc and attach it to an Arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::tessellateLinear( Arc *arc, REAL geo_stepsize, REAL arc_stepsize, int isrational ) -{ - assert( arc->pwlArc == NULL ); - REAL s1, s2, t1, t2; - - //we don't need to scale by arc_stepsize if the trim curve - //is piecewise linear. Reason: In pwl_right, pwl_left, pwl_top, pwl_left, - //and pwl, the nsteps is computed by deltaU (or V) /stepsize. - //The quantity deltaU/arc_stepsize doesn't have any meaning. And - //it causes problems: see bug 517641 - REAL stepsize = geo_stepsize; /* * arc_stepsize*/; - - BezierArc *b = arc->bezierArc; - - if( isrational ) { - s1 = b->cpts[0] / b->cpts[2]; - t1 = b->cpts[1] / b->cpts[2]; - s2 = b->cpts[b->stride+0] / b->cpts[b->stride+2]; - t2 = b->cpts[b->stride+1] / b->cpts[b->stride+2]; - } else { - s1 = b->cpts[0]; - t1 = b->cpts[1]; - s2 = b->cpts[b->stride+0]; - t2 = b->cpts[b->stride+1]; - } - if( s1 == s2 ) - if( t1 < t2 ) - pwl_right( arc, s1, t1, t2, stepsize ); - else - pwl_left( arc, s1, t1, t2, stepsize ); - else if( t1 == t2 ) - if( s1 < s2 ) - pwl_bottom( arc, t1, s1, s2, stepsize ); - else - pwl_top( arc, t1, s1, s2, stepsize ); - else - pwl( arc, s1, s2, t1, t2, stepsize ); -} - -/*----------------------------------------------------------------------------- - * tessellateNonlinear - constuct a nonlinear pwl arc and attach it to an Arc - *----------------------------------------------------------------------------- - */ - -void -ArcTessellator::tessellateNonlinear( Arc *arc, REAL geo_stepsize, REAL arc_stepsize, int isrational ) -{ - assert( arc->pwlArc == NULL ); - - REAL stepsize = geo_stepsize * arc_stepsize; - - BezierArc *bezierArc = arc->bezierArc; - - REAL size; //bounding box size of the curve in UV - { - int i,j; - REAL min_u, min_v, max_u,max_v; - min_u = max_u = bezierArc->cpts[0]; - min_v = max_v = bezierArc->cpts[1]; - for(i=1, j=2; iorder; i++, j+= bezierArc->stride) - { - if(bezierArc->cpts[j] < min_u) - min_u = bezierArc->cpts[j]; - if(bezierArc->cpts[j] > max_u) - max_u = bezierArc->cpts[j]; - if(bezierArc->cpts[j+1] < min_v) - min_v = bezierArc->cpts[j+1]; - if(bezierArc->cpts[j+1] > max_v) - max_v = bezierArc->cpts[j+1]; - } - - size = max_u - min_u; - if(size < max_v - min_v) - size = max_v - min_v; - } - - /*int nsteps = 1 + (int) (1.0/stepsize);*/ - - int nsteps = (int) (size/stepsize); - if(nsteps <=0) - nsteps=1; - - TrimVertex *vert = trimvertexpool.get( nsteps+1 ); - REAL dp = 1.0/nsteps; - - - arc->pwlArc = new(pwlarcpool) PwlArc(); - arc->pwlArc->pts = vert; - - if( isrational ) { - REAL pow_u[MAXORDER], pow_v[MAXORDER], pow_w[MAXORDER]; - trim_power_coeffs( bezierArc, pow_u, 0 ); - trim_power_coeffs( bezierArc, pow_v, 1 ); - trim_power_coeffs( bezierArc, pow_w, 2 ); - - /* compute first point exactly */ - REAL *b = bezierArc->cpts; - vert->param[0] = b[0]/b[2]; - vert->param[1] = b[1]/b[2]; - - /* strength reduction on p = dp * step would introduce error */ - int step; -#ifndef NOELIMINATION - int ocanremove = 0; -#endif - register long order = bezierArc->order; - for( step=1, ++vert; stepparam[0] = u/w; - vert->param[1] = v/w; -#ifndef NOELIMINATION - REAL ds = abs(vert[0].param[0] - vert[-1].param[0]); - REAL dt = abs(vert[0].param[1] - vert[-1].param[1]); - int canremove = (dsstride; - vert->param[0] = b[0]/b[2]; - vert->param[1] = b[1]/b[2]; - - } else { - REAL pow_u[MAXORDER], pow_v[MAXORDER]; - trim_power_coeffs( bezierArc, pow_u, 0 ); - trim_power_coeffs( bezierArc, pow_v, 1 ); - - /* compute first point exactly */ - REAL *b = bezierArc->cpts; - vert->param[0] = b[0]; - vert->param[1] = b[1]; - - /* strength reduction on p = dp * step would introduce error */ - int step; -#ifndef NOELIMINATION - int ocanremove = 0; -#endif - register long order = bezierArc->order; - for( step=1, ++vert; steporder; i++ ) { - u = u * p + pow_u[i]; - v = v * p + pow_v[i]; - } - vert->param[0] = u; - vert->param[1] = v; -#ifndef NOELIMINATION - REAL ds = abs(vert[0].param[0] - vert[-1].param[0]); - REAL dt = abs(vert[0].param[1] - vert[-1].param[1]); - int canremove = (dsstride; - vert->param[0] = b[0]; - vert->param[1] = b[1]; - } - arc->pwlArc->npts = vert - arc->pwlArc->pts + 1; -/* - for( TrimVertex *vt=pwlArc->pts; vt != vert-1; vt++ ) { - if( tooclose( vt[0].param[0], vt[1].param[0] ) ) - vt[1].param[0] = vt[0].param[0]; - if( tooclose( vt[0].param[1], vt[1].param[1] ) ) - vt[1].param[1] = vt[0].param[1]; - } -*/ -} - -const REAL ArcTessellator::gl_Bernstein[][MAXORDER][MAXORDER] = { - { - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {-1, 1, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {1, -2, 1, 0, 0, 0, 0, 0 }, - {-2, 2, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {-1, 3, -3, 1, 0, 0, 0, 0 }, - {3, -6, 3, 0, 0, 0, 0, 0 }, - {-3, 3, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {1, -4, 6, -4, 1, 0, 0, 0 }, - {-4, 12, -12, 4, 0, 0, 0, 0 }, - {6, -12, 6, 0, 0, 0, 0, 0 }, - {-4, 4, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {-1, 5, -10, 10, -5, 1, 0, 0 }, - {5, -20, 30, -20, 5, 0, 0, 0 }, - {-10, 30, -30, 10, 0, 0, 0, 0 }, - {10, -20, 10, 0, 0, 0, 0, 0 }, - {-5, 5, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {1, -6, 15, -20, 15, -6, 1, 0 }, - {-6, 30, -60, 60, -30, 6, 0, 0 }, - {15, -60, 90, -60, 15, 0, 0, 0 }, - {-20, 60, -60, 20, 0, 0, 0, 0 }, - {15, -30, 15, 0, 0, 0, 0, 0 }, - {-6, 6, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 }, - {0, 0, 0, 0, 0, 0, 0, 0 } - }, - { - {-1, 7, -21, 35, -35, 21, -7, 1 }, - {7, -42, 105, -140, 105, -42, 7, 0 }, - {-21, 105, -210, 210, -105, 21, 0, 0 }, - {35, -140, 210, -140, 35, 0, 0, 0 }, - {-35, 105, -105, 35, 0, 0, 0, 0 }, - {21, -42, 21, 0, 0, 0, 0, 0 }, - {-7, 7, 0, 0, 0, 0, 0, 0 }, - {1, 0, 0, 0, 0, 0, 0, 0 } - }}; - - -/*----------------------------------------------------------------------------- - * trim_power_coeffs - compute power basis coefficients from bezier coeffients - *----------------------------------------------------------------------------- - */ -void -ArcTessellator::trim_power_coeffs( BezierArc *bez_arc, REAL *p, int coord ) -{ - register int stride = bez_arc->stride; - register int order = bez_arc->order; - register REAL *base = bez_arc->cpts + coord; - - REAL const (*mat)[MAXORDER][MAXORDER] = &gl_Bernstein[order-1]; - REAL const (*lrow)[MAXORDER] = &(*mat)[order]; - - /* WIN32 didn't like the following line within the for-loop */ - REAL const (*row)[MAXORDER] = &(*mat)[0]; - for( ; row != lrow; row++ ) { - register REAL s = 0.0; - register REAL *point = base; - register REAL const *mlast = *row + order; - for( REAL const *m = *row; m != mlast; m++, point += stride ) - s += *(m) * (*point); - *(p++) = s; - } -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arctess.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arctess.h deleted file mode 100644 index 4f8bf65f2..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arctess.h +++ /dev/null @@ -1,72 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * arctess.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/arctess.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __gluarctess_h_ -#define __gluarctess_h_ - -#include "defines.h" -#include "types.h" -#include "arc.h" - -class BezierArc; -class Pool; -class TrimVertexPool; - -class ArcTessellator { -public: - ArcTessellator( TrimVertexPool&, Pool& ); - ~ArcTessellator( void ); - void bezier( Arc_ptr, REAL, REAL, REAL, REAL ); - void pwl( Arc_ptr, REAL, REAL, REAL, REAL, REAL ); - void pwl_left( Arc_ptr, REAL, REAL, REAL, REAL ); - void pwl_right( Arc_ptr, REAL, REAL, REAL, REAL ); - void pwl_top( Arc_ptr, REAL, REAL, REAL, REAL ); - void pwl_bottom( Arc_ptr, REAL, REAL, REAL, REAL ); - void tessellateLinear( Arc_ptr, REAL, REAL, int ); - void tessellateNonlinear( Arc_ptr, REAL, REAL, int ); -private: - static const REAL gl_Bernstein[][MAXORDER][MAXORDER]; - Pool& pwlarcpool; - TrimVertexPool& trimvertexpool; - static void trim_power_coeffs( BezierArc *, REAL[MAXORDER], int ); -}; - -#endif /* __gluarctess_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/backend.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/backend.cc deleted file mode 100644 index 5c1e33bd0..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/backend.cc +++ /dev/null @@ -1,589 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ -/* $XFree86$ */ - -/* - * backend.c++ - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/backend.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ - -/* Bezier surface backend - - interprets display mode (wireframe,shaded,...) -*/ -#include -#include "glimports.h" -#include "mystdio.h" -#include "backend.h" -#include "basiccrveval.h" -#include "basicsurfeval.h" -#include "nurbsconsts.h" - -#define NOWIREFRAME - - -/*------------------------------------------------------------------------- - * bgnsurf - preamble to surface definition and evaluations - *------------------------------------------------------------------------- - */ -void -Backend::bgnsurf( int wiretris, int wirequads, long nuid ) -{ -/*#ifndef NOWIREFRAME*/ //need this for old version - wireframetris = wiretris; - wireframequads = wirequads; -/*#endif*/ - - /*in the spec, GLU_DISPLAY_MODE is either - * GLU_FILL - * GLU_OUTLINE_POLY - * GLU_OUTLINE_PATCH. - *In fact, GLU_FLL is has the same effect as - * set GL_FRONT_AND_BACK to be GL_FILL - * and GLU_OUTLINE_POLY is the same as set - * GL_FRONT_AND_BACK to be GL_LINE - *It is more efficient to do this once at the beginning of - *each surface than to do it for each primitive. - * The internal has more options: outline_triangle and outline_quad - *can be seperated. But since this is not in spec, and more importantly, - *this is not so useful, so we don't need to keep this option. - */ - - surfaceEvaluator.bgnmap2f( nuid ); - - if(wiretris) - surfaceEvaluator.polymode(N_MESHLINE); - else - surfaceEvaluator.polymode(N_MESHFILL); -} - -void -Backend::patch( REAL ulo, REAL uhi, REAL vlo, REAL vhi ) -{ - surfaceEvaluator.domain2f( ulo, uhi, vlo, vhi ); -} - -void -Backend::surfbbox( long type, REAL *from, REAL *to ) -{ - surfaceEvaluator.range2f( type, from, to ); -} - -/*------------------------------------------------------------------------- - * surfpts - pass a desription of a surface map - *------------------------------------------------------------------------- - */ -void -Backend::surfpts( - long type, /* geometry, color, texture, normal */ - REAL *pts, /* control points */ - long ustride, /* distance to next point in u direction */ - long vstride, /* distance to next point in v direction */ - int uorder, /* u parametric order */ - int vorder, /* v parametric order */ - REAL ulo, /* u lower bound */ - REAL uhi, /* u upper bound */ - REAL vlo, /* v lower bound */ - REAL vhi ) /* v upper bound */ -{ - surfaceEvaluator.map2f( type,ulo,uhi,ustride,uorder,vlo,vhi,vstride,vorder,pts ); - surfaceEvaluator.enable( type ); -} - -/*------------------------------------------------------------------------- - * surfgrid - define a lattice of points with origin and offset - *------------------------------------------------------------------------- - */ -void -Backend::surfgrid( REAL u0, REAL u1, long nu, REAL v0, REAL v1, long nv ) -{ - surfaceEvaluator.mapgrid2f( nu, u0, u1, nv, v0, v1 ); -} - -/*------------------------------------------------------------------------- - * surfmesh - evaluate a mesh of points on lattice - *------------------------------------------------------------------------- - */ -void -Backend::surfmesh( long u, long v, long n, long m ) -{ -#ifndef NOWIREFRAME - if( wireframequads ) { - long v0, v1; - long u0f = u, u1f = u+n; - long v0f = v, v1f = v+m; - long parity = (u & 1); - - for( v0 = v0f, v1 = v0f++ ; v0isGridVert() ) { - tmeshvert( v->g ); - } else { - tmeshvert( v->t ); - } -} - -void -Backend::tmeshvertNOGE(TrimVertex *t) -{ -// surfaceEvaluator.inDoEvalCoord2NOGE( t->param[0], t->param[1], temp, ttt); -#ifdef USE_OPTTT - surfaceEvaluator.inDoEvalCoord2NOGE( t->param[0], t->param[1], t->cache_point, t->cache_normal); -#endif -} - -//opt for a line with the same u. -void -Backend::tmeshvertNOGE_BU(TrimVertex *t) -{ -#ifdef USE_OPTTT - surfaceEvaluator.inDoEvalCoord2NOGE_BU( t->param[0], t->param[1], t->cache_point, t->cache_normal); -#endif -} - -//opt for a line with the same v. -void -Backend::tmeshvertNOGE_BV(TrimVertex *t) -{ -#ifdef USE_OPTTT - surfaceEvaluator.inDoEvalCoord2NOGE_BV( t->param[0], t->param[1], t->cache_point, t->cache_normal); -#endif -} - -void -Backend::preEvaluateBU(REAL u) -{ - surfaceEvaluator.inPreEvaluateBU_intfac(u); -} - -void -Backend::preEvaluateBV(REAL v) -{ - surfaceEvaluator.inPreEvaluateBV_intfac(v); -} - - -/*------------------------------------------------------------------------- - * tmeshvert - evaluate a point on a triangle mesh - *------------------------------------------------------------------------- - */ -void -Backend::tmeshvert( TrimVertex *t ) -{ - -#ifndef NOWIREFRAME - const long nuid = t->nuid; -#endif - const REAL u = t->param[0]; - const REAL v = t->param[1]; - -#ifndef NOWIREFRAME - npts++; - if( wireframetris ) { - if( npts >= 3 ) { - surfaceEvaluator.bgnclosedline(); - if( mesh[0][2] == 0 ) - surfaceEvaluator.evalcoord2f( mesh[0][3], mesh[0][0], mesh[0][1] ); - else - surfaceEvaluator.evalpoint2i( (long) mesh[0][0], (long) mesh[0][1] ); - if( mesh[1][2] == 0 ) - surfaceEvaluator.evalcoord2f( mesh[1][3], mesh[1][0], mesh[1][1] ); - else - surfaceEvaluator.evalpoint2i( (long) mesh[1][0], (long) mesh[1][1] ); - surfaceEvaluator.evalcoord2f( nuid, u, v ); - surfaceEvaluator.endclosedline(); - } - mesh[meshindex][0] = u; - mesh[meshindex][1] = v; - mesh[meshindex][2] = 0; - mesh[meshindex][3] = nuid; - meshindex = (meshindex+1) % 2; - } else { - surfaceEvaluator.evalcoord2f( nuid, u, v ); - } -#else - surfaceEvaluator.evalcoord2f( 0, u, v ); -#endif -} - -//the same as tmeshvert(trimvertex), for efficiency purpose -void -Backend::tmeshvert( REAL u, REAL v ) -{ -#ifndef NOWIREFRAME - const long nuid = 0; - - npts++; - if( wireframetris ) { - if( npts >= 3 ) { - surfaceEvaluator.bgnclosedline(); - if( mesh[0][2] == 0 ) - surfaceEvaluator.evalcoord2f( mesh[0][3], mesh[0][0], mesh[0][1] ); - else - surfaceEvaluator.evalpoint2i( (long) mesh[0][0], (long) mesh[0][1] ); - if( mesh[1][2] == 0 ) - surfaceEvaluator.evalcoord2f( mesh[1][3], mesh[1][0], mesh[1][1] ); - else - surfaceEvaluator.evalpoint2i( (long) mesh[1][0], (long) mesh[1][1] ); - surfaceEvaluator.evalcoord2f( nuid, u, v ); - surfaceEvaluator.endclosedline(); - } - mesh[meshindex][0] = u; - mesh[meshindex][1] = v; - mesh[meshindex][2] = 0; - mesh[meshindex][3] = nuid; - meshindex = (meshindex+1) % 2; - } else { - surfaceEvaluator.evalcoord2f( nuid, u, v ); - } -#else - surfaceEvaluator.evalcoord2f( 0, u, v ); -#endif -} - -/*------------------------------------------------------------------------- - * tmeshvert - evaluate a grid point of a triangle mesh - *------------------------------------------------------------------------- - */ -void -Backend::tmeshvert( GridVertex *g ) -{ - const long u = g->gparam[0]; - const long v = g->gparam[1]; - -#ifndef NOWIREFRAME - npts++; - if( wireframetris ) { - if( npts >= 3 ) { - surfaceEvaluator.bgnclosedline(); - if( mesh[0][2] == 0 ) - surfaceEvaluator.evalcoord2f( (long) mesh[0][3], mesh[0][0], mesh[0][1] ); - else - surfaceEvaluator.evalpoint2i( (long) mesh[0][0], (long) mesh[0][1] ); - if( mesh[1][2] == 0 ) - surfaceEvaluator.evalcoord2f( (long) mesh[1][3], mesh[1][0], mesh[1][1] ); - else - surfaceEvaluator.evalpoint2i( (long) mesh[1][0], (long) mesh[1][1] ); - surfaceEvaluator.evalpoint2i( u, v ); - surfaceEvaluator.endclosedline(); - } - mesh[meshindex][0] = u; - mesh[meshindex][1] = v; - mesh[meshindex][2] = 1; - meshindex = (meshindex+1) % 2; - } else { - surfaceEvaluator.evalpoint2i( u, v ); - } -#else - surfaceEvaluator.evalpoint2i( u, v ); -#endif -} - -/*------------------------------------------------------------------------- - * swaptmesh - perform a swap of the triangle mesh pointers - *------------------------------------------------------------------------- - */ -void -Backend::swaptmesh( void ) -{ -#ifndef NOWIREFRAME - if( wireframetris ) { - meshindex = 1 - meshindex; - } else { - surfaceEvaluator.swaptmesh(); - } -#else - surfaceEvaluator.swaptmesh(); -#endif -} - -/*------------------------------------------------------------------------- - * endtmesh - postamble to triangle mesh - *------------------------------------------------------------------------- - */ -void -Backend::endtmesh( void ) -{ -#ifndef NOWIREFRAME - if( ! wireframetris ) - surfaceEvaluator.endtmesh(); -#else - surfaceEvaluator.endtmesh(); -/* surfaceEvaluator.polymode( N_MESHFILL );*/ -#endif -} - - -/*------------------------------------------------------------------------- - * bgnoutline - preamble to outlined rendering - *------------------------------------------------------------------------- - */ -void -Backend::bgnoutline( void ) -{ - surfaceEvaluator.bgnline(); -} - -/*------------------------------------------------------------------------- - * linevert - evaluate a point on an outlined contour - *------------------------------------------------------------------------- - */ -void -Backend::linevert( TrimVertex *t ) -{ - surfaceEvaluator.evalcoord2f( t->nuid, t->param[0], t->param[1] ); -} - -/*------------------------------------------------------------------------- - * linevert - evaluate a grid point of an outlined contour - *------------------------------------------------------------------------- - */ -void -Backend::linevert( GridVertex *g ) -{ - surfaceEvaluator.evalpoint2i( g->gparam[0], g->gparam[1] ); -} - -/*------------------------------------------------------------------------- - * endoutline - postamble to outlined rendering - *------------------------------------------------------------------------- - */ -void -Backend::endoutline( void ) -{ - surfaceEvaluator.endline(); -} - -/*------------------------------------------------------------------------- - * triangle - output a triangle - *------------------------------------------------------------------------- - */ -void -Backend::triangle( TrimVertex *a, TrimVertex *b, TrimVertex *c ) -{ -/* bgntmesh( "spittriangle" );*/ - bgntfan(); - tmeshvert( a ); - tmeshvert( b ); - tmeshvert( c ); - endtfan(); -/* endtmesh();*/ -} - -void -Backend::bgncurv( void ) -{ - curveEvaluator.bgnmap1f( 0 ); -} - -void -Backend::segment( REAL ulo, REAL uhi ) -{ - curveEvaluator.domain1f( ulo, uhi ); -} - -void -Backend::curvpts( - long type, /* geometry, color, texture, normal */ - REAL *pts, /* control points */ - long stride, /* distance to next point */ - int order, /* parametric order */ - REAL ulo, /* lower parametric bound */ - REAL uhi ) /* upper parametric bound */ - -{ - curveEvaluator.map1f( type, ulo, uhi, stride, order, pts ); - curveEvaluator.enable( type ); -} - -void -Backend::curvgrid( REAL u0, REAL u1, long nu ) -{ - curveEvaluator.mapgrid1f( nu, u0, u1 ); -} - -void -Backend::curvmesh( long from, long n ) -{ - curveEvaluator.mapmesh1f( N_MESHFILL, from, from+n ); -} - -void -Backend::curvpt(REAL u) -{ - curveEvaluator.evalcoord1f( 0, u ); -} - -void -Backend::bgnline( void ) -{ - curveEvaluator.bgnline(); -} - -void -Backend::endline( void ) -{ - curveEvaluator.endline(); -} - -void -Backend::endcurv( void ) -{ - curveEvaluator.endmap1f(); -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/backend.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/backend.h deleted file mode 100644 index de560d33a..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/backend.h +++ /dev/null @@ -1,119 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * backend.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/backend.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glubackend_h_ -#define __glubackend_h_ - -#include "trimvertex.h" -#include "gridvertex.h" -#include "gridtrimvertex.h" - -class BasicCurveEvaluator; -class BasicSurfaceEvaluator; - -class Backend { -private: - BasicCurveEvaluator& curveEvaluator; - BasicSurfaceEvaluator& surfaceEvaluator; -public: - Backend( BasicCurveEvaluator &c, BasicSurfaceEvaluator& e ) - : curveEvaluator(c), surfaceEvaluator(e) {} - - /* surface backend routines */ - void bgnsurf( int, int, long ); - void patch( REAL, REAL, REAL, REAL ); - void surfpts( long, REAL *, long, long, int, int, - REAL, REAL, REAL, REAL ); - void surfbbox( long, REAL *, REAL * ); - void surfgrid( REAL, REAL, long, REAL, REAL, long ); - void surfmesh( long, long, long, long ); - void bgntmesh( char * ); - void endtmesh( void ); - void swaptmesh( void ); - void tmeshvert( GridTrimVertex * ); - void tmeshvert( TrimVertex * ); - void tmeshvert( GridVertex * ); - void tmeshvert( REAL u, REAL v ); - void linevert( TrimVertex * ); - void linevert( GridVertex * ); - void bgnoutline( void ); - void endoutline( void ); - void endsurf( void ); - void triangle( TrimVertex*, TrimVertex*, TrimVertex* ); - - void bgntfan(); - void endtfan(); - void bgnqstrip(); - void endqstrip(); - void evalUStrip(int n_upper, REAL v_upper, REAL* upper_val, - int n_lower, REAL v_lower, REAL* lower_val - ); - void evalVStrip(int n_left, REAL u_left, REAL* left_val, - int n_right, REAL v_right, REAL* right_val - ); - void tmeshvertNOGE(TrimVertex *t); - void tmeshvertNOGE_BU(TrimVertex *t); - void tmeshvertNOGE_BV(TrimVertex *t); - void preEvaluateBU(REAL u); - void preEvaluateBV(REAL v); - - - /* curve backend routines */ - void bgncurv( void ); - void segment( REAL, REAL ); - void curvpts( long, REAL *, long, int, REAL, REAL ); - void curvgrid( REAL, REAL, long ); - void curvmesh( long, long ); - void curvpt( REAL ); - void bgnline( void ); - void endline( void ); - void endcurv( void ); -private: -#ifndef NOWIREFRAME - int wireframetris; - int wireframequads; - int npts; - REAL mesh[3][4]; - int meshindex; -#endif -}; - -#endif /* __glubackend_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basiccrveval.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basiccrveval.cc deleted file mode 100644 index a67e8cab9..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basiccrveval.cc +++ /dev/null @@ -1,140 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * basiccrveval.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basiccrveval.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "mystdio.h" -#include "types.h" -#include "basiccrveval.h" - -void -BasicCurveEvaluator::domain1f( REAL, REAL ) -{ -#ifndef NDEBUG - dprintf( "domain1f\n" ); -#endif -} - -void -BasicCurveEvaluator::range1f( long type, REAL *, REAL * ) -{ -#ifndef NDEBUG - dprintf( "range1f\n" ); -#endif -} - -void -BasicCurveEvaluator::enable( long ) -{ -#ifndef NDEBUG - dprintf( "enable\n" ); -#endif -} - -void -BasicCurveEvaluator::disable( long ) -{ -#ifndef NDEBUG - dprintf( "disable\n" ); -#endif -} - -void -BasicCurveEvaluator::bgnmap1f( long ) -{ -#ifndef NDEBUG - dprintf( "bgnmap1f\n" ); -#endif -} - -void -BasicCurveEvaluator::map1f( long, REAL, REAL, long, long, REAL * ) -{ -#ifndef NDEBUG - dprintf( "map1f\n" ); -#endif -} - -void -BasicCurveEvaluator::mapgrid1f( long, REAL, REAL ) -{ -#ifndef NDEBUG - dprintf( "mapgrid1f\n" ); -#endif -} - -void -BasicCurveEvaluator::mapmesh1f( long, long, long ) -{ -#ifndef NDEBUG - dprintf( "mapmesh1f\n" ); -#endif -} - -void -BasicCurveEvaluator::evalcoord1f( long, REAL ) -{ -#ifndef NDEBUG - dprintf( "evalcoord1f\n" ); -#endif -} - -void -BasicCurveEvaluator::endmap1f( void ) -{ -#ifndef NDEBUG - dprintf( "endmap1f\n" ); -#endif -} - -void -BasicCurveEvaluator::bgnline( void ) -{ -#ifndef NDEBUG - dprintf( "bgnline\n" ); -#endif -} - -void -BasicCurveEvaluator::endline( void ) -{ -#ifndef NDEBUG - dprintf( "endline\n" ); -#endif -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basiccrveval.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basiccrveval.h deleted file mode 100644 index b342a4961..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basiccrveval.h +++ /dev/null @@ -1,67 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * basiccurveeval.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basiccrveval.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glubasiccrveval_h_ -#define __glubasiccrveval_h_ - -#include "types.h" -#include "displaymode.h" -#include "cachingeval.h" - -class BasicCurveEvaluator : public CachingEvaluator { -public: - virtual void domain1f( REAL, REAL ); - virtual void range1f( long, REAL *, REAL * ); - - virtual void enable( long ); - virtual void disable( long ); - virtual void bgnmap1f( long ); - virtual void map1f( long, REAL, REAL, long, long, REAL * ); - virtual void mapgrid1f( long, REAL, REAL ); - virtual void mapmesh1f( long, long, long ); - virtual void evalcoord1f( long, REAL ); - virtual void endmap1f( void ); - - virtual void bgnline( void ); - virtual void endline( void ); -}; - -#endif /* __glubasiccrveval_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basicsurfeval.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basicsurfeval.cc deleted file mode 100644 index 4e487c1d7..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basicsurfeval.cc +++ /dev/null @@ -1,230 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * basicsurfaceevaluator.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basicsurfeval.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "mystdio.h" -#include "types.h" -#include "basicsurfeval.h" - -void -BasicSurfaceEvaluator::domain2f( REAL, REAL, REAL, REAL ) -{ -#ifndef NDEBUG - dprintf( "domain2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::polymode( long ) -{ -#ifndef NDEBUG - dprintf( "polymode\n" ); -#endif -} - -void -BasicSurfaceEvaluator::range2f( long type, REAL *from, REAL *to ) -{ -#ifndef NDEBUG - dprintf( "range2f type %ld, from (%g,%g), to (%g,%g)\n", - type, from[0], from[1], to[0], to[1] ); -#endif -} - -void -BasicSurfaceEvaluator::enable( long ) -{ -#ifndef NDEBUG - dprintf( "enable\n" ); -#endif -} - -void -BasicSurfaceEvaluator::disable( long ) -{ -#ifndef NDEBUG - dprintf( "disable\n" ); -#endif -} - -void -BasicSurfaceEvaluator::bgnmap2f( long ) -{ -#ifndef NDEBUG - dprintf( "bgnmap2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::endmap2f( void ) -{ -#ifndef NDEBUG - dprintf( "endmap2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::map2f( long, REAL, REAL, long, long, - REAL, REAL, long, long, - REAL * ) -{ -#ifndef NDEBUG - dprintf( "map2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::mapgrid2f( long, REAL, REAL, long, REAL, REAL ) -{ -#ifndef NDEBUG - dprintf( "mapgrid2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::mapmesh2f( long, long, long, long, long ) -{ -#ifndef NDEBUG - dprintf( "mapmesh2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::evalcoord2f( long, REAL, REAL ) -{ -#ifndef NDEBUG - dprintf( "evalcoord2f\n" ); -#endif -} - -void -BasicSurfaceEvaluator::evalpoint2i( long, long ) -{ -#ifndef NDEBUG - dprintf( "evalpoint2i\n" ); -#endif -} - -void -BasicSurfaceEvaluator::bgnline( void ) -{ -#ifndef NDEBUG - dprintf( "bgnline\n" ); -#endif -} - -void -BasicSurfaceEvaluator::endline( void ) -{ -#ifndef NDEBUG - dprintf( "endline\n" ); -#endif -} - -void -BasicSurfaceEvaluator::bgnclosedline( void ) -{ -#ifndef NDEBUG - dprintf( "bgnclosedline\n" ); -#endif -} - -void -BasicSurfaceEvaluator::endclosedline( void ) -{ -#ifndef NDEBUG - dprintf( "endclosedline\n" ); -#endif -} - -void -BasicSurfaceEvaluator::bgntfan( void ) -{ -#ifndef NDEBUG - dprintf( "bgntfan\n" ); -#endif -} - -void -BasicSurfaceEvaluator::endtfan( void ) -{ -} - - -void -BasicSurfaceEvaluator::bgntmesh( void ) -{ -#ifndef NDEBUG - dprintf( "bgntmesh\n" ); -#endif -} - -void -BasicSurfaceEvaluator::swaptmesh( void ) -{ -#ifndef NDEBUG - dprintf( "swaptmesh\n" ); -#endif -} - -void -BasicSurfaceEvaluator::endtmesh( void ) -{ -#ifndef NDEBUG - dprintf( "endtmesh\n" ); -#endif -} - -void -BasicSurfaceEvaluator::bgnqstrip( void ) -{ -#ifndef NDEBUG - dprintf( "bgnqstrip\n" ); -#endif -} - -void -BasicSurfaceEvaluator::endqstrip( void ) -{ -#ifndef NDEBUG - dprintf( "endqstrip\n" ); -#endif -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basicsurfeval.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basicsurfeval.h deleted file mode 100644 index fbe59d298..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basicsurfeval.h +++ /dev/null @@ -1,95 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * basicsurfeval.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/basicsurfeval.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glubasicsurfeval_h_ -#define __glubasicsurfeval_h_ - -#include "types.h" -#include "displaymode.h" -#include "cachingeval.h" - -class BasicSurfaceEvaluator : public CachingEvaluator { -public: - virtual void range2f( long, REAL *, REAL * ); - virtual void domain2f( REAL, REAL, REAL, REAL ); - - virtual void enable( long ); - virtual void disable( long ); - virtual void bgnmap2f( long ); - virtual void map2f( long, REAL, REAL, long, long, - REAL, REAL, long, long, - REAL * ); - virtual void mapgrid2f( long, REAL, REAL, long, REAL, REAL ); - virtual void mapmesh2f( long, long, long, long, long ); - virtual void evalcoord2f( long, REAL, REAL ); - virtual void evalpoint2i( long, long ); - virtual void endmap2f( void ); - - virtual void polymode( long ); - virtual void bgnline( void ); - virtual void endline( void ); - virtual void bgnclosedline( void ); - virtual void endclosedline( void ); - virtual void bgntmesh( void ); - virtual void swaptmesh( void ); - virtual void endtmesh( void ); - virtual void bgnqstrip( void ); - virtual void endqstrip( void ); - - virtual void bgntfan( void ); - virtual void endtfan( void ); - - virtual void evalUStrip(int n_upper, REAL v_upper, REAL* upper_val, - int n_lower, REAL v_lower, REAL* lower_val - ) = 0; - - virtual void evalVStrip(int n_left, REAL u_left, REAL* left_val, - int n_right, REAL u_right, REAL* right_val - ) = 0; - virtual void inDoEvalCoord2NOGE(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0; - virtual void inDoEvalCoord2NOGE_BU(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0; - virtual void inDoEvalCoord2NOGE_BV(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0; - virtual void inPreEvaluateBV_intfac(REAL v ) = 0; - virtual void inPreEvaluateBU_intfac(REAL u ) = 0; - -}; - -#endif /* __glubasicsurfeval_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bezierarc.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bezierarc.h deleted file mode 100644 index 226f70fe2..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bezierarc.h +++ /dev/null @@ -1,57 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * bezierarc.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bezierarc.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glubezierarc_h -#define __glubezierarc_h - -#include "myassert.h" - -class Mapdesc; - -struct BezierArc : public PooledObj { /* a bezier arc */ - REAL * cpts; /* control points of arc */ - int order; /* order of arc */ - int stride; /* REAL distance between points */ - long type; /* curve type */ - Mapdesc * mapdesc; -}; - -#endif /* __glubezierarc_h */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bin.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bin.cc deleted file mode 100644 index 5b9f5fa01..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bin.cc +++ /dev/null @@ -1,169 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ -/* $XFree86$ */ - -/* - * bin.c++ - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bin.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "bin.h" - -/*---------------------------------------------------------------------------- - * Constructor and destructor - *---------------------------------------------------------------------------- - */ -Bin::Bin() -{ - head = NULL; -} - -Bin::~Bin() -{ - assert( head == NULL); -} - -/*---------------------------------------------------------------------------- - * remove_this_arc - remove given Arc_ptr from bin - *---------------------------------------------------------------------------- - */ - -void -Bin::remove_this_arc( Arc_ptr arc ) -{ - Arc_ptr *j; - for( j = &(head); (*j != 0) && (*j != arc); j = &((*j)->link) ); - - if( *j != 0 ) { - if( *j == current ) - current = (*j)->link; - *j = (*j)->link; - } -} - -/*---------------------------------------------------------------------------- - * numarcs - count number of arcs in bin - *---------------------------------------------------------------------------- - */ - -int -Bin::numarcs() -{ - long count = 0; - for( Arc_ptr jarc = firstarc(); jarc; jarc = nextarc() ) - count++; - return count; -} - -/*---------------------------------------------------------------------------- - * adopt - place an orphaned arcs into their new parents bin - *---------------------------------------------------------------------------- - */ - -void -Bin::adopt() -{ - markall(); - - Arc_ptr orphan; - while( (orphan = removearc()) != NULL ) { - for( Arc_ptr parent = orphan->next; parent != orphan; parent = parent->next ) { - if (! parent->ismarked() ) { - orphan->link = parent->link; - parent->link = orphan; - orphan->clearmark(); - break; - } - } - } -} - - -/*---------------------------------------------------------------------------- - * show - print out descriptions of the arcs in the bin - *---------------------------------------------------------------------------- - */ - -void -Bin::show( char *name ) -{ -#ifndef NDEBUG - dprintf( "%s\n", name ); - for( Arc_ptr jarc = firstarc(); jarc; jarc = nextarc() ) - jarc->show( ); -#endif -} - - - -/*---------------------------------------------------------------------------- - * markall - mark all arcs with an identifying tag - *---------------------------------------------------------------------------- - */ - -void -Bin::markall() -{ - for( Arc_ptr jarc=firstarc(); jarc; jarc=nextarc() ) - jarc->setmark(); -} - -/*---------------------------------------------------------------------------- - * listBezier - print out all arcs that are untessellated border arcs - *---------------------------------------------------------------------------- - */ - -void -Bin::listBezier( void ) -{ - for( Arc_ptr jarc=firstarc(); jarc; jarc=nextarc() ) { - if( jarc->isbezier( ) ) { - assert( jarc->pwlArc->npts == 2 ); -#ifndef NDEBUG - TrimVertex *pts = jarc->pwlArc->pts; - REAL s1 = pts[0].param[0]; - REAL t1 = pts[0].param[1]; - REAL s2 = pts[1].param[0]; - REAL t2 = pts[1].param[1]; - dprintf( "arc (%g,%g) (%g,%g)\n", s1, t1, s2, t2 ); -#endif - } - } -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bin.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bin.h deleted file mode 100644 index 439c198d4..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bin.h +++ /dev/null @@ -1,127 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * bin.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bin.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glubin_h_ -#define __glubin_h_ - -#include "myassert.h" -#include "arc.h" -#include "defines.h" - -class Bin -{ /* a linked list of jordan arcs */ -private: - Arc_ptr head;/*first arc on list */ - Arc_ptr current; /* current arc on list */ -public: - Bin(); - ~Bin(); - inline Arc_ptr firstarc( void ); - inline Arc_ptr nextarc( void ); - inline Arc_ptr removearc( void ); - inline int isnonempty( void ) { return (head ? 1 : 0); } - inline void addarc( Arc_ptr ); - void remove_this_arc( Arc_ptr ); - int numarcs( void ); - void adopt( void ); - void markall( void ); - void show( char * ); - void listBezier( void ); -}; - -/*---------------------------------------------------------------------------- - * Bin::addarc - add an Arc_ptr to head of linked list of Arc_ptr - *---------------------------------------------------------------------------- - */ - -inline void -Bin::addarc( Arc_ptr jarc ) -{ - jarc->link = head; - head = jarc; -} - -/*---------------------------------------------------------------------------- - * Bin::removearc - remove first Arc_ptr from bin - *---------------------------------------------------------------------------- - */ - -inline Arc_ptr -Bin::removearc( void ) -{ - Arc_ptr jarc = head; - - if( jarc ) head = jarc->link; - return jarc; -} - - -/*---------------------------------------------------------------------------- - * BinIter::nextarc - return current arc in bin and advance pointer to next arc - *---------------------------------------------------------------------------- - */ - -inline Arc_ptr -Bin::nextarc( void ) -{ - Arc_ptr jarc = current; - -#ifdef DEBUG - assert( jarc->check() != 0 ); -#endif - - if( jarc ) current = jarc->link; - return jarc; -} - -/*---------------------------------------------------------------------------- - * BinIter::firstarc - set current arc to first arc of bin advance to next arc - *---------------------------------------------------------------------------- - */ - -inline Arc_ptr -Bin::firstarc( void ) -{ - current = head; - return nextarc( ); -} - -#endif /* __glubin_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bufpool.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bufpool.cc deleted file mode 100644 index 36de91aad..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bufpool.cc +++ /dev/null @@ -1,109 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * bufpool.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bufpool.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "bufpool.h" - - -/*----------------------------------------------------------------------------- - * Pool - allocate a new pool of buffers - *----------------------------------------------------------------------------- - */ -Pool::Pool( int _buffersize, int initpoolsize, char *n ) -{ - buffersize= (_buffersize < sizeof(Buffer)) ? sizeof(Buffer) : _buffersize; - initsize = initpoolsize * buffersize; - nextsize = initsize; - name = n; - magic = is_allocated; - nextblock = 0; - curblock = 0; - freelist = 0; - nextfree = 0; -} - -/*----------------------------------------------------------------------------- - * ~Pool - free a pool of buffers and the pool itself - *----------------------------------------------------------------------------- - */ - -Pool::~Pool( void ) -{ - assert( (this != 0) && (magic == is_allocated) ); - - while( nextblock ) { - delete [] blocklist[--nextblock]; - blocklist[nextblock] = 0; - } - magic = is_free; -} - - -void Pool::grow( void ) -{ - assert( (this != 0) && (magic == is_allocated) ); - curblock = new char[nextsize]; - blocklist[nextblock++] = curblock; - nextfree = nextsize; - nextsize *= 2; -} - -/*----------------------------------------------------------------------------- - * Pool::clear - free buffers associated with pool but keep pool - *----------------------------------------------------------------------------- - */ - -void -Pool::clear( void ) -{ - assert( (this != 0) && (magic == is_allocated) ); - - while( nextblock ) { - delete [] blocklist[--nextblock]; - blocklist[nextblock] = 0; - } - curblock = 0; - freelist = 0; - nextfree = 0; - if( nextsize > initsize ) - nextsize /= 2; -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bufpool.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bufpool.h deleted file mode 100644 index dbcfc1681..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bufpool.h +++ /dev/null @@ -1,145 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * bufpool.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/bufpool.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glubufpool_h_ -#define __glubufpool_h_ - -#include "myassert.h" -#include "mystdlib.h" - -#define NBLOCKS 32 - -class Buffer { - friend class Pool; - Buffer * next; /* next buffer on free list */ -}; - -class Pool { -public: - Pool( int, int, char * ); - ~Pool( void ); - inline void* new_buffer( void ); - inline void free_buffer( void * ); - void clear( void ); - -private: - void grow( void ); - -protected: - Buffer *freelist; /* linked list of free buffers */ - char *blocklist[NBLOCKS]; /* blocks of malloced memory */ - int nextblock; /* next free block index */ - char *curblock; /* last malloced block */ - int buffersize; /* bytes per buffer */ - int nextsize; /* size of next block of memory */ - int nextfree; /* byte offset past next free buffer */ - int initsize; - enum Magic { is_allocated = 0xf3a1, is_free = 0xf1a2 }; - char *name; /* name of the pool */ - Magic magic; /* marker for valid pool */ -}; - -/*----------------------------------------------------------------------------- - * Pool::free_buffer - return a buffer to a pool - *----------------------------------------------------------------------------- - */ - -inline void -Pool::free_buffer( void *b ) -{ - assert( (this != 0) && (magic == is_allocated) ); - - /* add buffer to singly connected free list */ - - ((Buffer *) b)->next = freelist; - freelist = (Buffer *) b; -} - - -/*----------------------------------------------------------------------------- - * Pool::new_buffer - allocate a buffer from a pool - *----------------------------------------------------------------------------- - */ - -inline void * -Pool::new_buffer( void ) -{ - void *buffer; - - assert( (this != 0) && (magic == is_allocated) ); - - /* find free buffer */ - - if( freelist ) { - buffer = (void *) freelist; - freelist = freelist->next; - } else { - if( ! nextfree ) - grow( ); - nextfree -= buffersize;; - buffer = (void *) (curblock + nextfree); - } - return buffer; -} - -class PooledObj { -public: - inline void * operator new( size_t, Pool & ); - inline void * operator new( size_t, void *); - inline void * operator new( size_t s) - { return ::new char[s]; } - inline void operator delete( void * ) { assert( 0 ); } - inline void deleteMe( Pool & ); -}; - -inline void * -PooledObj::operator new( size_t, Pool& pool ) -{ - return pool.new_buffer(); -} - -inline void -PooledObj::deleteMe( Pool& pool ) -{ - pool.free_buffer( (void *) this ); -} - -#endif /* __glubufpool_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/cachingeval.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/cachingeval.cc deleted file mode 100644 index 423210a80..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/cachingeval.cc +++ /dev/null @@ -1,80 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * cachingeval.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/cachingeval.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "cachingeval.h" - -int -CachingEvaluator::canRecord( void ) -{ - return 0; -} - -int -CachingEvaluator::canPlayAndRecord( void ) -{ - return 0; -} - -int -CachingEvaluator::createHandle( int ) -{ - return 0; -} - -void -CachingEvaluator::beginOutput( ServiceMode, int ) -{ -} - -void -CachingEvaluator::endOutput( void ) -{ -} - -void -CachingEvaluator::discardRecording( int ) -{ -} - -void -CachingEvaluator::playRecording( int ) -{ -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/cachingeval.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/cachingeval.h deleted file mode 100644 index 3657951d4..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/cachingeval.h +++ /dev/null @@ -1,56 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * cachingeval.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/cachingeval.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glucachingval_h_ -#define __glucachingval_h_ - -class CachingEvaluator { -public: - enum ServiceMode { play, record, playAndRecord }; - virtual int canRecord( void ); - virtual int canPlayAndRecord( void ); - virtual int createHandle( int handle ); - virtual void beginOutput( ServiceMode, int handle ); - virtual void endOutput( void ); - virtual void discardRecording( int handle ); - virtual void playRecording( int handle ); -}; -#endif /* __glucachingval_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/ccw.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/ccw.cc deleted file mode 100644 index 1a3792090..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/ccw.cc +++ /dev/null @@ -1,567 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * ccw.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/ccw.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "subdivider.h" -#include "types.h" -#include "arc.h" -#include "trimvertex.h" -#include "simplemath.h" - -inline int -Subdivider::bbox( TrimVertex *a, TrimVertex *b, TrimVertex *c, int p ) -{ - return bbox( a->param[p], b->param[p], c->param[p], - a->param[1-p], b->param[1-p], c->param[1-p] ); -} - -int -Subdivider::ccwTurn_sr( Arc_ptr j1, Arc_ptr j2 ) // dir = 1 -{ - register TrimVertex *v1 = &j1->pwlArc->pts[j1->pwlArc->npts-1]; - register TrimVertex *v1last = &j1->pwlArc->pts[0]; - register TrimVertex *v2 = &j2->pwlArc->pts[0]; - register TrimVertex *v2last = &j2->pwlArc->pts[j2->pwlArc->npts-1]; - register TrimVertex *v1next = v1-1; - register TrimVertex *v2next = v2+1; - int sgn; - - assert( v1 != v1last ); - assert( v2 != v2last ); - -#ifndef NDEBUG - dprintf( "arc_ccw_turn, p = %d\n", 0 ); -#endif - - // the arcs lie on the line (0 == v1->param[0]) - if( v1->param[0] == v1next->param[0] && v2->param[0] == v2next->param[0] ) - return 0; - - if( v2next->param[0] < v2->param[0] || v1next->param[0] < v1->param[0] ) - ::mylongjmp( jumpbuffer, 28 ); - - if( v1->param[1] < v2->param[1] ) - return 0; - else if( v1->param[1] > v2->param[1] ) - return 1; - - while( 1 ) { - if( v1next->param[0] < v2next->param[0] ) { -#ifndef NDEBUG - dprintf( "case a\n" ); -#endif - assert( v1->param[0] <= v1next->param[0] ); - assert( v2->param[0] <= v1next->param[0] ); - switch( bbox( v2, v2next, v1next, 1 ) ) { - case -1: - return 0; - case 0: - sgn = ccw( v1next, v2, v2next ); - if( sgn != -1 ) { - return sgn; - } else { -#ifdef DEBUG - dprintf( "decr\n" ); -#endif - v1 = v1next--; - if( v1 == v1last ) { -#ifdef DEBUG - dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 1; - } - } else if( v1next->param[0] > v2next->param[0] ) { -#ifndef NDEBUG - dprintf( "case b\n" ); -#endif - assert( v1->param[0] <= v2next->param[0] ); - assert( v2->param[0] <= v2next->param[0] ); - switch( bbox( v1, v1next, v2next, 1 ) ) { - case -1: - return 1; - case 0: - sgn = ccw( v1next, v1, v2next ); - if( sgn != -1 ) { - return sgn; - } else { -#ifdef DEBUG - dprintf( "incr\n" ); -#endif - v2 = v2next++; - if( v2 == v2last ) { -#ifdef DEBUG - dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 0; - } - } else { -#ifndef NDEBUG - dprintf( "case ab\n" ); -#endif - if( v1next->param[1] < v2next->param[1] ) - return 0; - else if( v1next->param[1] > v2next->param[1] ) - return 1; - else { -#ifdef DEBUG - dprintf( "incr\n" ); -#endif - v2 = v2next++; - if( v2 == v2last ) { -#ifdef DEBUG - dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - } - } -} - -int -Subdivider::ccwTurn_sl( Arc_ptr j1, Arc_ptr j2 ) // dir = 0 -{ - register TrimVertex *v1 = &j1->pwlArc->pts[j1->pwlArc->npts-1]; - register TrimVertex *v1last = &j1->pwlArc->pts[0]; - register TrimVertex *v2 = &j2->pwlArc->pts[0]; - register TrimVertex *v2last = &j2->pwlArc->pts[j2->pwlArc->npts-1]; - register TrimVertex *v1next = v1-1; - register TrimVertex *v2next = v2+1; - int sgn; - - assert( v1 != v1last ); - assert( v2 != v2last ); - -#ifndef NDEBUG - dprintf( "arc_ccw_turn, p = %d\n", 0 ); -#endif - - // the arcs lie on the line (0 == v1->param[0]) - if( v1->param[0] == v1next->param[0] && v2->param[0] == v2next->param[0] ) - return 0; - - if( v2next->param[0] > v2->param[0] || v1next->param[0] > v1->param[0] ) - ::mylongjmp( jumpbuffer, 28 ); - - if( v1->param[1] < v2->param[1] ) - return 1; - else if( v1->param[1] > v2->param[1] ) - return 0; - - while( 1 ) { - if( v1next->param[0] > v2next->param[0] ) { -#ifndef NDEBUG - dprintf( "case c\n" ); -#endif - assert( v1->param[0] >= v1next->param[0] ); - assert( v2->param[0] >= v1next->param[0] ); - switch( bbox( v2next, v2, v1next, 1 ) ) { - case -1: - return 1; - case 0: - sgn = ccw( v1next, v2, v2next ); - if( sgn != -1 ) - return sgn; - else { - v1 = v1next--; -#ifdef DEBUG - dprintf( "decr\n" ); -#endif - if( v1 == v1last ) { -#ifdef DEBUG - dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 0; - } - } else if( v1next->param[0] < v2next->param[0] ) { -#ifndef NDEBUG - dprintf( "case d\n" ); -#endif - assert( v1->param[0] >= v2next->param[0] ); - assert( v2->param[0] >= v2next->param[0] ); - switch( bbox( v1next, v1, v2next, 1 ) ) { - case -1: - return 0; - case 0: - sgn = ccw( v1next, v1, v2next ); - if( sgn != -1 ) - return sgn; - else { - v2 = v2next++; -#ifdef DEBUG - dprintf( "incr\n" ); -#endif - if( v2 == v2last ) { -#ifdef DEBUG - dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 1; - } - } else { -#ifdef DEBUG - dprintf( "case cd\n" ); -#endif - if( v1next->param[1] < v2next->param[1] ) - return 1; - else if( v1next->param[1] > v2next->param[1] ) - return 0; - else { - v2 = v2next++; -#ifdef DEBUG - dprintf( "incr\n" ); -#endif - if( v2 == v2last ) { -#ifdef DEBUG - dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - } - } -} - -int -Subdivider::ccwTurn_tr( Arc_ptr j1, Arc_ptr j2 ) // dir = 1 -{ - register TrimVertex *v1 = &j1->pwlArc->pts[j1->pwlArc->npts-1]; - register TrimVertex *v1last = &j1->pwlArc->pts[0]; - register TrimVertex *v2 = &j2->pwlArc->pts[0]; - register TrimVertex *v2last = &j2->pwlArc->pts[j2->pwlArc->npts-1]; - register TrimVertex *v1next = v1-1; - register TrimVertex *v2next = v2+1; - int sgn; - - assert( v1 != v1last ); - assert( v2 != v2last ); - -#ifndef NDEBUG - dprintf( "arc_ccw_turn, p = %d\n", 1 ); -#endif - - // the arcs lie on the line (1 == v1->param[1]) - if( v1->param[1] == v1next->param[1] && v2->param[1] == v2next->param[1] ) - return 0; - - if( v2next->param[1] < v2->param[1] || v1next->param[1] < v1->param[1] ) - ::mylongjmp( jumpbuffer, 28 ); - - if( v1->param[0] < v2->param[0] ) - return 1; - else if( v1->param[0] > v2->param[0] ) - return 0; - - while( 1 ) { - if( v1next->param[1] < v2next->param[1] ) { -#ifndef NDEBUG - dprintf( "case a\n" ); -#endif - assert( v1->param[1] <= v1next->param[1] ); - assert( v2->param[1] <= v1next->param[1] ); - switch( bbox( v2, v2next, v1next, 0 ) ) { - case -1: - return 1; - case 0: - sgn = ccw( v1next, v2, v2next ); - if( sgn != -1 ) { - return sgn; - } else { -#ifdef DEBUG - dprintf( "decr\n" ); -#endif - v1 = v1next--; - if( v1 == v1last ) { -#ifdef DEBUG - dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 0; - } - } else if( v1next->param[1] > v2next->param[1] ) { -#ifndef NDEBUG - dprintf( "case b\n" ); -#endif - assert( v1->param[1] <= v2next->param[1] ); - assert( v2->param[1] <= v2next->param[1] ); - switch( bbox( v1, v1next, v2next, 0 ) ) { - case -1: - return 0; - case 0: - sgn = ccw( v1next, v1, v2next ); - if( sgn != -1 ) { - return sgn; - } else { -#ifdef DEBUG - dprintf( "incr\n" ); -#endif - v2 = v2next++; - if( v2 == v2last ) { -#ifdef DEBUG - dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 1; - } - } else { -#ifdef DEBUG - dprintf( "case ab\n" ); -#endif - if( v1next->param[0] < v2next->param[0] ) - return 1; - else if( v1next->param[0] > v2next->param[0] ) - return 0; - else { -#ifdef DEBUG - dprintf( "incr\n" ); -#endif - v2 = v2next++; - if( v2 == v2last ) { -#ifdef DEBUG - dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - } - } -} - -int -Subdivider::ccwTurn_tl( Arc_ptr j1, Arc_ptr j2 ) -{ - register TrimVertex *v1 = &j1->pwlArc->pts[j1->pwlArc->npts-1]; - register TrimVertex *v1last = &j1->pwlArc->pts[0]; - register TrimVertex *v2 = &j2->pwlArc->pts[0]; - register TrimVertex *v2last = &j2->pwlArc->pts[j2->pwlArc->npts-1]; - register TrimVertex *v1next = v1-1; - register TrimVertex *v2next = v2+1; - int sgn; - - assert( v1 != v1last ); - assert( v2 != v2last ); - -#ifndef NDEBUG - dprintf( "arc_ccw_turn, p = %d\n", 1 ); -#endif - - // the arcs lie on the line (1 == v1->param[1]) - if( v1->param[1] == v1next->param[1] && v2->param[1] == v2next->param[1] ) - return 0; - - if( v2next->param[1] > v2->param[1] || v1next->param[1] > v1->param[1] ) - ::mylongjmp( jumpbuffer, 28 ); - - if( v1->param[0] < v2->param[0] ) - return 0; - else if( v1->param[0] > v2->param[0] ) - return 1; - - while( 1 ) { - if( v1next->param[1] > v2next->param[1] ) { -#ifndef NDEBUG - dprintf( "case c\n" ); -#endif - assert( v1->param[1] >= v1next->param[1] ); - assert( v2->param[1] >= v1next->param[1] ); - switch( bbox( v2next, v2, v1next, 0 ) ) { - case -1: - return 0; - case 0: - sgn = ccw( v1next, v2, v2next ); - if( sgn != -1 ) - return sgn; - else { - v1 = v1next--; -#ifdef DEBUG - dprintf( "decr\n" ); -#endif - if( v1 == v1last ) { -#ifdef DEBUG - dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 1; - } - } else if( v1next->param[1] < v2next->param[1] ) { -#ifndef NDEBUG - dprintf( "case d\n" ); - assert( v1->param[1] >= v2next->param[1] ); - assert( v2->param[1] >= v2next->param[1] ); -#endif - switch( bbox( v1next, v1, v2next, 0 ) ) { - case -1: - return 1; - case 0: - sgn = ccw( v1next, v1, v2next ); - if( sgn != -1 ) - return sgn; - else { - v2 = v2next++; -#ifdef DEBUG - dprintf( "incr\n" ); -#endif - if( v2 == v2last ) { -#ifdef DEBUG - dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - break; - case 1: - return 0; - } - } else { -#ifdef DEBUG - dprintf( "case cd\n" ); -#endif - if( v1next->param[0] < v2next->param[0] ) - return 0; - else if( v1next->param[0] > v2next->param[0] ) - return 1; - else { - v2 = v2next++; -#ifdef DEBUG - dprintf( "incr\n" ); -#endif - if( v2 == v2last ) { -#ifdef DEBUG - dprintf( "no good results\n" ); -#endif - return 0; // ill-conditioned, guess answer - } - } - } - } -} - - -#ifndef NDEBUG -int -Subdivider::bbox( register REAL sa, register REAL sb, register REAL sc, - register REAL ta, register REAL tb, register REAL tc ) -#else -int -Subdivider::bbox( register REAL sa, register REAL sb, register REAL sc, - register REAL , register REAL , register REAL ) -#endif -{ -#ifndef NDEBUG - assert( tc >= ta ); - assert( tc <= tb ); -#endif - - if( sa < sb ) { - if( sc <= sa ) { - return -1; - } else if( sb <= sc ) { - return 1; - } else { - return 0; - } - } else if( sa > sb ) { - if( sc >= sa ) { - return 1; - } else if( sb >= sc ) { - return -1; - } else { - return 0; - } - } else { - if( sc > sa ) { - return 1; - } else if( sb > sc ) { - return -1; - } else { - return 0; - } - } -} - -/*---------------------------------------------------------------------------- - * ccw - determine how three points are oriented by computing their - * determinant. - * Return 1 if the vertices are ccw oriented, - * 0 if they are cw oriented, or - * -1 if the computation is ill-conditioned. - *---------------------------------------------------------------------------- - */ -int -Subdivider::ccw( TrimVertex *a, TrimVertex *b, TrimVertex *c ) -{ - REAL d = det3( a, b, c ); - if( abs(d) < 0.0001 ) return -1; - return (d < 0.0) ? 0 : 1; -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/coveandtiler.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/coveandtiler.cc deleted file mode 100644 index eb4500491..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/coveandtiler.cc +++ /dev/null @@ -1,442 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * coveandtiler.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/coveandtiler.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "coveandtiler.h" -#include "gridvertex.h" -#include "gridtrimvertex.h" -#include "uarray.h" -#include "backend.h" - - -const int CoveAndTiler::MAXSTRIPSIZE = 1000; - -CoveAndTiler::CoveAndTiler( Backend& b ) - : backend( b ) -{ } - -CoveAndTiler::~CoveAndTiler( void ) -{ } - -inline void -CoveAndTiler::output( GridVertex &gv ) -{ - backend.tmeshvert( &gv ); -} - -inline void -CoveAndTiler::output( TrimVertex *tv ) -{ - backend.tmeshvert( tv ); -} - -inline void -CoveAndTiler::output( GridTrimVertex& g ) -{ - backend.tmeshvert( &g ); -} - -void -CoveAndTiler::coveAndTile( void ) -{ - long ustart = (top.ustart >= bot.ustart) ? top.ustart : bot.ustart; - long uend = (top.uend <= bot.uend) ? top.uend : bot.uend; - if( ustart <= uend ) { - tile( bot.vindex, ustart, uend ); - if( top.ustart >= bot.ustart ) - coveUpperLeft(); - else - coveLowerLeft(); - - if( top.uend <= bot.uend ) - coveUpperRight(); - else - coveLowerRight(); - } else { - TrimVertex blv, tlv, *bl, *tl; - GridTrimVertex bllv, tllv; - TrimVertex *lf = left.first(); - TrimVertex *ll = left.last(); - if( lf->param[0] >= ll->param[0] ) { - blv.param[0] = lf->param[0]; - blv.param[1] = ll->param[1]; - blv.nuid = 0; // XXX - assert( blv.param[1] == bot.vval ); - bl = &blv; - tl = lf; - tllv.set( lf ); - if( ll->param[0] > uarray.uarray[top.ustart-1] ) { - bllv.set( ll ); - assert( ll->param[0] <= uarray.uarray[bot.ustart] ); - } else { - bllv.set( top.ustart-1, bot.vindex ); - } - coveUpperLeftNoGrid( bl ); - } else { - tlv.param[0] = ll->param[0]; - tlv.param[1] = lf->param[1]; - tlv.nuid = 0; // XXX - assert( tlv.param[1] == top.vval ); - tl = &tlv; - bl = ll; - bllv.set( ll ); - if( lf->param[0] > uarray.uarray[bot.ustart-1] ) { - assert( lf->param[0] <= uarray.uarray[bot.ustart] ); - tllv.set( lf ); - } else { - tllv.set( bot.ustart-1, top.vindex ); - } - coveLowerLeftNoGrid( tl ); - } - - TrimVertex brv, trv, *br, *tr; - GridTrimVertex brrv, trrv; - TrimVertex *rf = right.first(); - TrimVertex *rl = right.last(); - - if( rf->param[0] <= rl->param[0] ) { - brv.param[0] = rf->param[0]; - brv.param[1] = rl->param[1]; - brv.nuid = 0; // XXX - assert( brv.param[1] == bot.vval ); - br = &brv; - tr = rf; - trrv.set( rf ); - if( rl->param[0] < uarray.uarray[top.uend+1] ) { - assert( rl->param[0] >= uarray.uarray[top.uend] ); - brrv.set( rl ); - } else { - brrv.set( top.uend+1, bot.vindex ); - } - coveUpperRightNoGrid( br ); - } else { - trv.param[0] = rl->param[0]; - trv.param[1] = rf->param[1]; - trv.nuid = 0; // XXX - assert( trv.param[1] == top.vval ); - tr = &trv; - br = rl; - brrv.set( rl ); - if( rf->param[0] < uarray.uarray[bot.uend+1] ) { - assert( rf->param[0] >= uarray.uarray[bot.uend] ); - trrv.set( rf ); - } else { - trrv.set( bot.uend+1, top.vindex ); - } - coveLowerRightNoGrid( tr ); - } - - backend.bgntmesh( "doit" ); - output(trrv); - output(tllv); - output( tr ); - output( tl ); - output( br ); - output( bl ); - output(brrv); - output(bllv); - backend.endtmesh(); - } -} - -void -CoveAndTiler::tile( long vindex, long ustart, long uend ) -{ - long numsteps = uend - ustart; - - if( numsteps == 0 ) return; - - if( numsteps > MAXSTRIPSIZE ) { - long umid = ustart + (uend - ustart) / 2; - tile( vindex, ustart, umid ); - tile( vindex, umid, uend ); - } else { - backend.surfmesh( ustart, vindex-1, numsteps, 1 ); - } -} - -void -CoveAndTiler::coveUpperRight( void ) -{ - GridVertex tgv( top.uend, top.vindex ); - GridVertex gv( top.uend, bot.vindex ); - - right.first(); - backend.bgntmesh( "coveUpperRight" ); - output( right.next() ); - output( tgv ); - backend.swaptmesh(); - output( gv ); - coveUR(); - backend.endtmesh(); -} - -void -CoveAndTiler::coveUpperRightNoGrid( TrimVertex* br ) -{ - backend.bgntmesh( "coveUpperRight" ); - output( right.first() ); - output( right.next() ); - backend.swaptmesh(); - output( br ); - coveUR(); - backend.endtmesh(); -} - -void -CoveAndTiler::coveUR( ) -{ - GridVertex gv( top.uend, bot.vindex ); - TrimVertex *vert = right.next(); - if( vert == NULL ) return; - - assert( vert->param[0] >= uarray.uarray[gv.gparam[0]] ); - - if( gv.nextu() >= bot.uend ) { - for( ; vert; vert = right.next() ) { - output( vert ); - backend.swaptmesh(); - } - } else while( 1 ) { - if( vert->param[0] < uarray.uarray[gv.gparam[0]] ) { - output( vert ); - backend.swaptmesh(); - vert = right.next(); - if( vert == NULL ) break; - } else { - backend.swaptmesh(); - output( gv ); - if( gv.nextu() == bot.uend ) { - for( ; vert; vert = right.next() ) { - output( vert ); - backend.swaptmesh(); - } - break; - } - } - } -} - -void -CoveAndTiler::coveUpperLeft( void ) -{ - GridVertex tgv( top.ustart, top.vindex ); - GridVertex gv( top.ustart, bot.vindex ); - - left.first(); - backend.bgntmesh( "coveUpperLeft" ); - output( tgv ); - output( left.next() ); - output( gv ); - backend.swaptmesh(); - coveUL(); - backend.endtmesh(); -} - -void -CoveAndTiler::coveUpperLeftNoGrid( TrimVertex* bl ) -{ - backend.bgntmesh( "coveUpperLeftNoGrid" ); - output( left.first() ); - output( left.next() ); - output( bl ); - backend.swaptmesh(); - coveUL(); - backend.endtmesh(); -} - -void -CoveAndTiler::coveUL() -{ - GridVertex gv( top.ustart, bot.vindex ); - TrimVertex *vert = left.next(); - if( vert == NULL ) return; - assert( vert->param[0] <= uarray.uarray[gv.gparam[0]] ); - - if( gv.prevu() <= bot.ustart ) { - for( ; vert; vert = left.next() ) { - backend.swaptmesh(); - output( vert ); - } - } else while( 1 ) { - if( vert->param[0] > uarray.uarray[gv.gparam[0]] ) { - backend.swaptmesh(); - output( vert ); - vert = left.next(); - if( vert == NULL ) break; - } else { - output( gv ); - backend.swaptmesh(); - if( gv.prevu() == bot.ustart ) { - for( ; vert; vert = left.next() ) { - backend.swaptmesh(); - output( vert ); - } - break; - } - } - } -} - -void -CoveAndTiler::coveLowerLeft( void ) -{ - GridVertex bgv( bot.ustart, bot.vindex ); - GridVertex gv( bot.ustart, top.vindex ); - - left.last(); - backend.bgntmesh( "coveLowerLeft" ); - output( left.prev() ); - output( bgv ); - backend.swaptmesh(); - output( gv ); - coveLL(); - backend.endtmesh(); -} - -void -CoveAndTiler::coveLowerLeftNoGrid( TrimVertex* tl ) -{ - backend.bgntmesh( "coveLowerLeft" ); - output( left.last() ); - output( left.prev() ); - backend.swaptmesh(); - output( tl ); - coveLL( ); - backend.endtmesh(); -} - -void -CoveAndTiler::coveLL() -{ - GridVertex gv( bot.ustart, top.vindex ); - TrimVertex *vert = left.prev(); - if( vert == NULL ) return; - assert( vert->param[0] <= uarray.uarray[gv.gparam[0]] ); - - if( gv.prevu() <= top.ustart ) { - for( ; vert; vert = left.prev() ) { - output( vert ); - backend.swaptmesh(); - } - } else while( 1 ) { - if( vert->param[0] > uarray.uarray[gv.gparam[0]] ){ - output( vert ); - backend.swaptmesh(); - vert = left.prev(); - if( vert == NULL ) break; - } else { - backend.swaptmesh(); - output( gv ); - if( gv.prevu() == top.ustart ) { - for( ; vert; vert = left.prev() ) { - output( vert ); - backend.swaptmesh(); - } - break; - } - } - } -} - -void -CoveAndTiler::coveLowerRight( void ) -{ - GridVertex bgv( bot.uend, bot.vindex ); - GridVertex gv( bot.uend, top.vindex ); - - right.last(); - backend.bgntmesh( "coveLowerRight" ); - output( bgv ); - output( right.prev() ); - output( gv ); - backend.swaptmesh(); - coveLR(); - backend.endtmesh( ); -} - -void -CoveAndTiler::coveLowerRightNoGrid( TrimVertex* tr ) -{ - backend.bgntmesh( "coveLowerRIght" ); - output( right.last() ); - output( right.prev() ); - output( tr ); - backend.swaptmesh(); - coveLR(); - backend.endtmesh(); -} - -void -CoveAndTiler::coveLR( ) -{ - GridVertex gv( bot.uend, top.vindex ); - TrimVertex *vert = right.prev(); - if( vert == NULL ) return; - assert( vert->param[0] >= uarray.uarray[gv.gparam[0]] ); - - if( gv.nextu() >= top.uend ) { - for( ; vert; vert = right.prev() ) { - backend.swaptmesh(); - output( vert ); - } - } else while( 1 ) { - if( vert->param[0] < uarray.uarray[gv.gparam[0]] ) { - backend.swaptmesh(); - output( vert ); - vert = right.prev(); - if( vert == NULL ) break; - } else { - output( gv ); - backend.swaptmesh(); - if( gv.nextu() == top.uend ) { - for( ; vert; vert = right.prev() ) { - backend.swaptmesh(); - output( vert ); - } - break; - } - } - } -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/coveandtiler.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/coveandtiler.h deleted file mode 100644 index 637c349fe..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/coveandtiler.h +++ /dev/null @@ -1,78 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * coveandtiler.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/coveandtiler.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glucoveandtiler_h -#define __glucoveandtiler_h - -#include "trimregion.h" - -class Backend; -class TrimVertex; -class GridVertex; -class GridTrimVertex; - -class CoveAndTiler : virtual public TrimRegion { -public: - CoveAndTiler( Backend& ); - ~CoveAndTiler( void ); - void coveAndTile( void ); -private: - Backend& backend; - static const int MAXSTRIPSIZE; - void tile( long, long, long ); - void coveLowerLeft( void ); - void coveLowerRight( void ); - void coveUpperLeft( void ); - void coveUpperRight( void ); - void coveUpperLeftNoGrid( TrimVertex * ); - void coveUpperRightNoGrid( TrimVertex * ); - void coveLowerLeftNoGrid( TrimVertex * ); - void coveLowerRightNoGrid( TrimVertex * ); - void coveLL( void ); - void coveLR( void ); - void coveUL( void ); - void coveUR( void ); - inline void output( GridTrimVertex& ); - inline void output( GridVertex& ); - inline void output( TrimVertex* ); -}; - -#endif /* __glucoveandtiler_h */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curve.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curve.cc deleted file mode 100644 index 505bbc1f3..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curve.cc +++ /dev/null @@ -1,202 +0,0 @@ -/* $XFree86: xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curve.cc,v 1.3tsi Exp $ */ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * curve.c++ - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curve.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "mymath.h" -#include "curve.h" -#include "mapdesc.h" -#include "types.h" -#include "quilt.h" -#include "nurbsconsts.h" -#include "gluint.h" - -/*-------------------------------------------------------------------------- - * Curve::Curve - copy curve from quilt and transform control points - *-------------------------------------------------------------------------- - */ - -Curve::Curve( Quilt_ptr geo, REAL pta, REAL ptb, Curve *c ) -{ - mapdesc = geo->mapdesc; - next = c; - needsSampling = mapdesc->isRangeSampling() ? 1 : 0; - cullval = mapdesc->isCulling() ? CULL_ACCEPT : CULL_TRIVIAL_ACCEPT; - order = geo->qspec[0].order; - stride = MAXCOORDS; - - REAL *ps = geo->cpts; - Quiltspec_ptr qs = geo->qspec; - ps += qs->offset; - ps += qs->index * qs->order * qs->stride; - - if( needsSampling ) - mapdesc->xformSampling( ps, qs->order, qs->stride, spts, stride ); - - if( cullval == CULL_ACCEPT ) - mapdesc->xformCulling( ps, qs->order, qs->stride, cpts, stride ); - - /* set untrimmed curve range */ - range[0] = qs->breakpoints[qs->index]; - range[1] = qs->breakpoints[qs->index+1]; - range[2] = range[1] - range[0]; - - if( range[0] != pta ) { - Curve lower( *this, pta, 0 ); - lower.next = next; - *this = lower; - } - if( range[1] != ptb ) { - Curve lower( *this, ptb, 0 ); - } -} - -/*-------------------------------------------------------------------------- - * Curve::Curve - subdivide a curve along an isoparametric line - *-------------------------------------------------------------------------- - */ - -Curve::Curve( Curve& upper, REAL value, Curve *c ) -{ - Curve &lower = *this; - - lower.next = c; - lower.mapdesc = upper.mapdesc; - lower.needsSampling = upper.needsSampling; - lower.order = upper.order; - lower.stride = upper.stride; - lower.cullval = upper.cullval; - - REAL d = (value - upper.range[0]) / upper.range[2]; - - if( needsSampling ) - mapdesc->subdivide( upper.spts, lower.spts, d, upper.stride, upper.order ); - - if( cullval == CULL_ACCEPT ) - mapdesc->subdivide( upper.cpts, lower.cpts, d, upper.stride, upper.order ); - - lower.range[0] = upper.range[0]; - lower.range[1] = value; - lower.range[2] = value - upper.range[0]; - upper.range[0] = value; - upper.range[2] = upper.range[1] - value; -} - - -/*-------------------------------------------------------------------------- - * Curve::clamp - clamp the sampling rate to a given maximum - *-------------------------------------------------------------------------- - */ - -void -Curve::clamp( void ) -{ - if( stepsize < minstepsize ) - stepsize = mapdesc->clampfactor * minstepsize; -} - -void -Curve::setstepsize( REAL max ) -{ - stepsize = ( max >= 1.0 ) ? (range[2] / max) : range[2]; - minstepsize = stepsize; -} - -void -Curve::getstepsize( void ) -{ - minstepsize= 0; - - if( mapdesc->isConstantSampling() ) { - // fixed number of samples per patch in each direction - // maxrate is number of s samples per patch - setstepsize( mapdesc->maxrate ); - } else if( mapdesc->isDomainSampling() ) { - // maxrate is number of s samples per unit s length of domain - setstepsize( mapdesc->maxrate * range[2] ); - } else { - // upper bound on path length between sample points - - assert( order <= MAXORDER ); - - /* points have been transformed, therefore they are homogeneous */ - REAL tmp[MAXORDER][MAXCOORDS]; - const int tstride = sizeof(tmp[0]) / sizeof(REAL); - int val = mapdesc->project( spts, stride, &tmp[0][0], tstride, order ); - - if( val == 0 ) { - // control points cross infinity, therefore derivatives are undefined - setstepsize( mapdesc->maxrate ); - } else { - REAL t = mapdesc->getProperty( N_PIXEL_TOLERANCE ); - if( mapdesc->isParametricDistanceSampling() ) { - REAL d = mapdesc->calcPartialVelocity( &tmp[0][0], tstride, order, 2, range[2] ); - stepsize = (d > 0.0) ? ::SQRT( 8.0 * t / d ) : range[2]; - minstepsize = ( mapdesc->maxrate > 0.0 ) ? (range[2] / mapdesc->maxrate) : 0.0; - } else if( mapdesc->isPathLengthSampling() ) { - // t is upper bound on path (arc) length - REAL d = mapdesc->calcPartialVelocity( &tmp[0][0], tstride, order, 1, range[2] ); - stepsize = ( d > 0.0 ) ? (t / d) : range[2]; - minstepsize = ( mapdesc->maxrate > 0.0 ) ? (range[2] / mapdesc->maxrate) : 0.0; - } else { - // control points cross infinity, therefore partials are undefined - setstepsize( mapdesc->maxrate ); - } - } - } -} - -int -Curve::needsSamplingSubdivision( void ) -{ - return ( stepsize < minstepsize ) ? 1 : 0; -} - -int -Curve::cullCheck( void ) -{ - if( cullval == CULL_ACCEPT ) - cullval = mapdesc->cullCheck( cpts, order, stride ); - return cullval; -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curve.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curve.h deleted file mode 100644 index f64cc79ca..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curve.h +++ /dev/null @@ -1,76 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * curve.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curve.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glucurve_h_ -#define __glucurve_h_ - -#include "types.h" -#include "defines.h" - -class Mapdesc; -class Quilt; - - -class Curve { -public: -friend class Curvelist; - Curve( Quilt *, REAL, REAL, Curve * ); - Curve( Curve&, REAL, Curve * ); - Curve * next; -private: - Mapdesc * mapdesc; - int stride; - int order; - int cullval; - int needsSampling; - REAL cpts[MAXORDER*MAXCOORDS]; - REAL spts[MAXORDER*MAXCOORDS]; - REAL stepsize; - REAL minstepsize; - REAL range[3]; - - void clamp( void ); - void setstepsize( REAL ); - void getstepsize( void ); - int cullCheck( void ); - int needsSamplingSubdivision( void ); -}; -#endif /* __glucurve_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curvelist.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curvelist.cc deleted file mode 100644 index 639caa143..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curvelist.cc +++ /dev/null @@ -1,112 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * curvelist.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curvelist.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "quilt.h" -#include "curvelist.h" -#include "curve.h" -#include "nurbsconsts.h" -#include "types.h" - -Curvelist::Curvelist( Quilt *quilts, REAL pta, REAL ptb ) -{ - curve = 0; - for( Quilt *q = quilts; q; q = q->next ) - curve = new Curve( q, pta, ptb, curve ); - range[0] = pta; - range[1] = ptb; - range[2] = ptb - pta; -} - -Curvelist::Curvelist( Curvelist &upper, REAL value ) -{ - Curvelist &lower = *this; - curve = 0; - for( Curve *c = upper.curve; c; c = c->next ) - curve = new Curve( *c, value, curve ); - - lower.range[0] = upper.range[0]; - lower.range[1] = value; - lower.range[2] = value - upper.range[0]; - upper.range[0] = value; - upper.range[2] = upper.range[1] - value; -} - -Curvelist::~Curvelist() -{ - while( curve ) { - Curve *c = curve; - curve = curve->next; - delete c; - } -} - -int -Curvelist::cullCheck( void ) -{ - for( Curve *c = curve; c; c = c->next ) - if( c->cullCheck() == CULL_TRIVIAL_REJECT ) - return CULL_TRIVIAL_REJECT; - return CULL_ACCEPT; -} - -void -Curvelist::getstepsize( void ) -{ - stepsize = range[2]; - Curve *c; - for( c = curve; c; c = c->next ) { - c->getstepsize(); - c->clamp(); - stepsize = ((c->stepsize < stepsize) ? c->stepsize : stepsize); - if( c->needsSamplingSubdivision() ) break; - } - needsSubdivision = ( c ) ? 1 : 0; -} - -int -Curvelist::needsSamplingSubdivision( void ) -{ - return needsSubdivision; -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curvelist.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curvelist.h deleted file mode 100644 index e5c896184..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curvelist.h +++ /dev/null @@ -1,68 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * curvelist.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curvelist.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glucurvelist_h_ -#define __glucurvelist_h_ - -#include "types.h" -#include "defines.h" - -class Mapdesc; -class Quilt; -class Curve; - -class Curvelist -{ -friend class Subdivider; -public: - Curvelist( Quilt *, REAL, REAL ); - Curvelist( Curvelist &, REAL ); - ~Curvelist( void ); - int cullCheck( void ); - void getstepsize( void ); - int needsSamplingSubdivision(); -private: - Curve *curve; - float range[3]; - int needsSubdivision; - float stepsize; -}; -#endif /* __glucurvelist_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curvesub.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curvesub.cc deleted file mode 100644 index 486497162..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curvesub.cc +++ /dev/null @@ -1,105 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * curvesub.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/curvesub.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "subdivider.h" -#include "renderhints.h" -#include "backend.h" -#include "quilt.h" -#include "curvelist.h" -#include "curve.h" -#include "nurbsconsts.h" - -/*-------------------------------------------------------------------------- - * drawCurves - main curve rendering entry point - *-------------------------------------------------------------------------- - */ - -void -Subdivider::drawCurves( void ) -{ - REAL from[1], to[1]; - Flist bpts; - qlist->getRange( from, to, bpts ); - - renderhints.init( ); - - backend.bgncurv(); - for( int i=bpts.start; idownloadAll( &pta, &ptb, backend ); - - Curvelist curvelist( qlist, pta, ptb ); - samplingSplit( curvelist, renderhints.maxsubdivisions ); - } - backend.endcurv(); -} - - -/*-------------------------------------------------------------------------- - * samplingSplit - recursively subdivide patch, cull check each subpatch - *-------------------------------------------------------------------------- - */ - -void -Subdivider::samplingSplit( Curvelist& curvelist, int subdivisions ) -{ - if( curvelist.cullCheck() == CULL_TRIVIAL_REJECT ) return; - - curvelist.getstepsize(); - - if( curvelist.needsSamplingSubdivision() && (subdivisions > 0) ) { - REAL mid = ( curvelist.range[0] + curvelist.range[1] ) * 0.5; - Curvelist lowerlist( curvelist, mid ); - samplingSplit( lowerlist, subdivisions-1 ); // lower - samplingSplit( curvelist, subdivisions-1 ); // upper - } else { - long nu = 1 + ((long) (curvelist.range[2] / curvelist.stepsize)); - backend.curvgrid( curvelist.range[0], curvelist.range[1], nu ); - backend.curvmesh( 0, nu ); - } -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/dataTransform.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/dataTransform.cc deleted file mode 100644 index e81e2592f..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/dataTransform.cc +++ /dev/null @@ -1,208 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/dataTransform.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ -*/ -/* $XFree86$ */ - -#include -#include -#include "glimports.h" -#include "myassert.h" -#include "nurbsconsts.h" -#include "trimvertex.h" -#include "dataTransform.h" - -extern directedLine* arcLoopToDLineLoop(Arc_ptr loop); - -/* -static directedLine* copy_loop(Arc_ptr loop, Real2* vertArray, int& index, directedLine dline_buf[], sampledLine sline_buf[], int& index_dline) -{ - directedLine *ret; - int old_index = index; - int i = index; - int j; - for(j=0; jpwlArc->npts-1; j++, i++) - { - vertArray[i][0] = loop->pwlArc->pts[j].param[0]; - vertArray[i][1] = loop->pwlArc->pts[j].param[1]; - } - loop->clearmark(); - - for(Arc_ptr jarc = loop->next; jarc != loop; jarc=jarc->next) - { - for(j=0; jpwlArc->npts-1; j++, i++) - { - vertArray[i][0] = jarc->pwlArc->pts[j].param[0]; - vertArray[i][1] = jarc->pwlArc->pts[j].param[1]; - } - jarc->clearmark(); - } - //copy the first vertex again - vertArray[i][0] = loop->pwlArc->pts[0].param[0]; - vertArray[i][1] = loop->pwlArc->pts[0].param[1]; - i++; - index=i; - - directedLine* dline; - sampledLine* sline; - sline = &sline_buf[index_dline]; - dline = &dline_buf[index_dline]; - sline->init(2, &vertArray[old_index]); - dline->init(INCREASING, sline); - ret = dline; - index_dline++; - - for(i=old_index+1; i<= index-2; i++) - { - sline = &sline_buf[index_dline]; - dline = &dline_buf[index_dline]; - sline->init(2, &vertArray[i]); - dline->init(INCREASING, sline); - ret->insert(dline); - index_dline++; - } - return ret; -} - -static int num_edges(Bin& bin) -{ - int sum=0; - for(Arc_ptr jarc = bin.firstarc(); jarc; jarc=bin.nextarc()) - sum += jarc->pwlArc->npts-1; - return sum; -} - -directedLine* bin_to_DLineLoops(Bin& bin) -{ - directedLine *ret=NULL; - directedLine *temp; - - int numedges = num_edges(bin); - directedLine* dline_buf = new directedLine[numedges]; //not work for N32? - sampledLine* sline_buf=new sampledLine[numedges]; - - Real2* vertArray = new Real2[numedges*2]; - int index = 0; - int index_dline = 0; - bin.markall(); - - for(Arc_ptr jarc = bin.firstarc(); jarc; jarc=bin.nextarc()) - { - if(jarc->ismarked()) - { - assert(jarc->check() != 0); - Arc_ptr jarchead = jarc; - do { - jarc->clearmark(); - jarc = jarc->next; - } while(jarc != jarchead); - temp=copy_loop(jarchead, vertArray, index, dline_buf, sline_buf, index_dline); - ret = temp->insertPolygon(ret); - } - } - - return ret; -} -*/ - - -directedLine* bin_to_DLineLoops(Bin& bin) -{ - directedLine *ret=NULL; - directedLine *temp; - bin.markall(); - for(Arc_ptr jarc=bin.firstarc(); jarc; jarc=bin.nextarc()){ - if(jarc->ismarked()) { - assert(jarc->check() != 0); - Arc_ptr jarchead = jarc; - do { - jarc->clearmark(); - jarc = jarc->next; - } while(jarc != jarchead); - temp = arcLoopToDLineLoop(jarc); - ret = temp->insertPolygon(ret); - } - } - return ret; -} - -directedLine* o_pwlcurve_to_DLines(directedLine* original, O_pwlcurve* pwl) -{ - directedLine* ret = original; - for(Int i=0; inpts-1; i++) - { - sampledLine* sline = new sampledLine(2); - sline->setPoint(0, pwl->pts[i].param); - sline->setPoint(1, pwl->pts[i+1].param); - directedLine* dline = new directedLine(INCREASING, sline); - if(ret == NULL) - ret = dline; - else - ret->insert(dline); - } - return ret; -} - -directedLine* o_curve_to_DLineLoop(O_curve* cur) -{ - directedLine *ret; - if(cur == NULL) - return NULL; - assert(cur->curvetype == ct_pwlcurve); - ret = o_pwlcurve_to_DLines(NULL, cur->curve.o_pwlcurve); - for(O_curve* temp = cur->next; temp != NULL; temp = temp->next) - { - assert(temp->curvetype == ct_pwlcurve); - ret = o_pwlcurve_to_DLines(ret, temp->curve.o_pwlcurve); - } - return ret; -} - -directedLine* o_trim_to_DLineLoops(O_trim* trim) -{ - O_trim* temp; - directedLine *ret; - if(trim == NULL) - return NULL; - ret = o_curve_to_DLineLoop(trim->o_curve); - - for(temp=trim->next; temp != NULL; temp = temp->next) - { - ret = ret->insertPolygon(o_curve_to_DLineLoop(temp->o_curve)); - } - return ret; -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/dataTransform.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/dataTransform.h deleted file mode 100644 index 076d271d4..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/dataTransform.h +++ /dev/null @@ -1,66 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/dataTransform.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ -*/ - -#ifndef _DATA_TRANSFORM_H -#define _DATA_TRANSFORM_H - -#include "reader.h" -#include "directedLine.h" -#include "bin.h" -directedLine* bin_to_DLineLoops(Bin& bin); - -/*transform the pwlcurve into a number of directedline lines - *insert these directedlines into orignal which is supposed to be - *the part of the trimming loop obtained so far. - *return the updated trimkming loop. - */ -directedLine* o_pwlcurve_to_DLines(directedLine* original, O_pwlcurve* pwl); - -/*transform a trim loop (curve) into a directedLine loop - */ -directedLine* o_curve_to_DLineLoop(O_curve* curve); - -/*transform a list of trim loops (trim) into - *a list of polygons represented as directedLine*. - */ -directedLine* o_trim_to_DLineLoops(O_trim* trim); - - -#endif - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/defines.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/defines.h deleted file mode 100644 index a3347384f..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/defines.h +++ /dev/null @@ -1,56 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * defines.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/defines.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __gludefines_h_ -#define __gludefines_h_ - -/* culling constants */ -#define CULL_TRIVIAL_REJECT 0 -#define CULL_TRIVIAL_ACCEPT 1 -#define CULL_ACCEPT 2 - -/* maximum order of a B-Spline */ -#define MAXORDER 24 - -/* maximum dimension of any B-spline range space */ -#define MAXCOORDS 5 - -#endif /* __gludefines_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/displaylist.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/displaylist.cc deleted file mode 100644 index 06a337838..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/displaylist.cc +++ /dev/null @@ -1,84 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * displaylist.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/displaylist.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "mystdio.h" -#include "nurbstess.h" -#include "displaylist.h" - - -DisplayList::DisplayList( NurbsTessellator *_nt ) : - dlnodePool( sizeof( Dlnode ), 1, "dlnodepool" ) -{ - lastNode = &nodes; - nt = _nt; -} - -DisplayList::~DisplayList( void ) -{ - for( Dlnode *nextNode; nodes; nodes = nextNode ) { - nextNode = nodes->next; - if( nodes->cleanup != 0 ) (nt->*nodes->cleanup)( nodes->arg ); - //nodes->deleteMe(dlnodePool); - } -} - -void -DisplayList::play( void ) -{ - for( Dlnode *node = nodes; node; node = node->next ) - if( node->work != 0 ) (nt->*node->work)( node->arg ); -} - -void -DisplayList::endList( void ) -{ - *lastNode = 0; -} - -void -DisplayList::append( PFVS work, void *arg, PFVS cleanup ) -{ - Dlnode *node = new(dlnodePool) Dlnode( work, arg, cleanup ); - *lastNode = node; - lastNode = &(node->next); -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/displaylist.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/displaylist.h deleted file mode 100644 index 566893750..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/displaylist.h +++ /dev/null @@ -1,84 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * displaylist.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/displaylist.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __gludisplaylist_h_ -#define __gludisplaylist_h_ - -#include "glimports.h" -#include "mysetjmp.h" -#include "mystdio.h" -#include "bufpool.h" - -class NurbsTessellator; - -typedef void (NurbsTessellator::*PFVS)( void * ); - -struct Dlnode : public PooledObj { - Dlnode( PFVS, void *, PFVS ); - PFVS work; - void * arg; - PFVS cleanup; - Dlnode * next; -}; - -inline -Dlnode::Dlnode( PFVS _work, void *_arg, PFVS _cleanup ) -{ - work = _work; - arg = _arg; - cleanup = _cleanup; -} - -class DisplayList { -public: - DisplayList( NurbsTessellator * ); - ~DisplayList( void ); - void play( void ); - void append( PFVS work, void *arg, PFVS cleanup ); - void endList( void ); -private: - Dlnode *nodes; - Pool dlnodePool; - Dlnode **lastNode; - NurbsTessellator *nt; -}; - -#endif /* __gludisplaylist_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/displaymode.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/displaymode.h deleted file mode 100644 index 1e623a166..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/displaymode.h +++ /dev/null @@ -1,47 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/displaymode.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ -*/ - -#ifndef __gludisplaymode_h_ -#define __gludisplaymode_h_ - -#define N_MESHFILL 0 -#define N_MESHLINE 1 -#define N_MESHPOINT 2 - -#endif /* __gludisplaymode_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flist.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flist.cc deleted file mode 100644 index a078d25e3..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flist.cc +++ /dev/null @@ -1,120 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * flist.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flist.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "flist.h" - -/*---------------------------------------------------------------------------- - * Flist::Flist - initialize a REAL number array - *---------------------------------------------------------------------------- - */ -Flist::Flist( void ) -{ - npts = 0; - pts = 0; - start = end = 0; -} - -/*---------------------------------------------------------------------------- - * Flist::~Flist - free a REAL number array - *---------------------------------------------------------------------------- - */ -Flist::~Flist( void ) -{ - if( npts ) delete[] pts; -} - -void -Flist::add( REAL x ) -{ - pts[end++] = x; - assert( end <= npts ); -} - -/*---------------------------------------------------------------------------- - * Flist::filter - remove duplicate numbers from array - *---------------------------------------------------------------------------- - */ -void Flist::filter( void ) -{ - sorter.qsort( pts, end ); - start = 0; - - int j = 0; - for( int i = 1; i < end; i++ ) { - if( pts[i] == pts[i-j-1] ) - j++; - pts[i-j] = pts[i]; - } - end -= j; -} - -/*---------------------------------------------------------------------------- - * Flist::grow - ensure that array is large enough - *---------------------------------------------------------------------------- - */ -void Flist::grow( int maxpts ) -{ - if( npts < maxpts ) { - if( npts ) delete[] pts; - npts = 2 * maxpts; - pts = new REAL[npts]; - assert( pts != 0 ); - } - start = end = 0; -} - -/*---------------------------------------------------------------------------- - * Flist::taper - ignore head and tail of array - *---------------------------------------------------------------------------- - */ -void Flist::taper( REAL from, REAL to ) -{ - while( pts[start] != from ) - start++; - - while( pts[end-1] != to ) - end--; -} - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flist.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flist.h deleted file mode 100644 index 352c7e206..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flist.h +++ /dev/null @@ -1,65 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * flist.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flist.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __gluflist_h_ -#define __gluflist_h_ - -#include "types.h" -#include "flistsorter.h" - -class Flist { -public: - REAL * pts; /* head of array */ - int npts; /* number of points in array */ - int start; /* first important point index */ - int end; /* last important point index */ - - Flist( void ); - ~Flist( void ); - void add( REAL x ); - void filter( void ); - void grow( int); - void taper( REAL , REAL ); -protected: - FlistSorter sorter; -}; - -#endif /* __gluflist_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flistsorter.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flistsorter.cc deleted file mode 100644 index b5dcb98d0..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flistsorter.cc +++ /dev/null @@ -1,83 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * flistsorter.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flistsorter.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "flistsorter.h" - -FlistSorter::FlistSorter( void ) : Sorter( sizeof( REAL ) ) -{ -} - -void -FlistSorter::qsort( REAL *p, int n ) -{ - Sorter::qsort( (char *)p, n ); -} - -int -FlistSorter::qscmp( char *i, char *j ) -{ - REAL f0 = *(REAL *)i; - REAL f1 = *(REAL *)j; - return (f0 < f1) ? -1 : 1; -} - -void -FlistSorter::qsexc( char *i, char *j ) -{ - REAL *f0 = (REAL *)i; - REAL *f1 = (REAL *)j; - REAL tmp = *f0; - *f0 = *f1; - *f1 = tmp; -} - -void -FlistSorter::qstexc( char *i, char *j, char *k ) -{ - REAL *f0 = (REAL *)i; - REAL *f1 = (REAL *)j; - REAL *f2 = (REAL *)k; - REAL tmp = *f0; - *f0 = *f2; - *f2 = *f1; - *f1 = tmp; -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flistsorter.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flistsorter.h deleted file mode 100644 index 6ddb509be..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flistsorter.h +++ /dev/null @@ -1,58 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * flistsorter.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/flistsorter.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __gluflistsorter_h_ -#define __gluflistsorter_h_ - -#include "sorter.h" -#include "types.h" - -class FlistSorter : public Sorter { -public: - FlistSorter(void); - void qsort( REAL *a, int n ); - -protected: - virtual int qscmp( char *, char * ); - virtual void qsexc( char *i, char *j ); // i<-j, j<-i - virtual void qstexc( char *i, char *j, char *k ); // i<-k, k<-j, j<-i -}; -#endif /* __gluflistsorter_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/gridline.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/gridline.h deleted file mode 100644 index 1c6799704..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/gridline.h +++ /dev/null @@ -1,52 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * gridline.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/gridline.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glugridline_h_ -#define __glugridline_h_ - -struct Gridline { - long v; - REAL vval; - long vindex; - long ustart; - long uend; - }; -#endif /* __glugridline_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/gridtrimvertex.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/gridtrimvertex.h deleted file mode 100644 index df039aebc..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/gridtrimvertex.h +++ /dev/null @@ -1,95 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * gridtrimvertex.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/gridtrimvertex.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glugridtrimvertex_h_ -#define __glugridtrimvertex_h_ - -#include "mystdlib.h" -#include "bufpool.h" -#include "trimvertex.h" -#include "gridvertex.h" - -class GridTrimVertex : public PooledObj -{ -private: - TrimVertex dummyt; - GridVertex dummyg; -public: - GridTrimVertex() { g = 0; t = 0; } - TrimVertex *t; - GridVertex *g; - - inline void set( long, long ); - inline void set( REAL, REAL ); - inline void set( TrimVertex * ); - inline void clear( void ) { t = 0; g = 0; }; - inline int isGridVert() { return g ? 1 : 0 ; } - inline int isTrimVert() { return t ? 1 : 0 ; } - inline void output(); -}; - -inline void -GridTrimVertex::set( long x, long y ) -{ - g = &dummyg; - dummyg.gparam[0] = x; - dummyg.gparam[1] = y; -} - -inline void -GridTrimVertex::set( REAL x, REAL y ) -{ - g = 0; - t = &dummyt; - dummyt.param[0] = x; - dummyt.param[1] = y; - dummyt.nuid = 0; -} - -inline void -GridTrimVertex::set( TrimVertex *v ) -{ - g = 0; - t = v; -} - -typedef GridTrimVertex *GridTrimVertex_p; -#endif /* __glugridtrimvertex_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/gridvertex.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/gridvertex.h deleted file mode 100644 index ca061853d..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/gridvertex.h +++ /dev/null @@ -1,54 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * gridvertex.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/gridvertex.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glugridvertex_h_ -#define __glugridvertex_h_ - -struct GridVertex { - long gparam[2]; - GridVertex( void ) {} - GridVertex( long u, long v ) { gparam[0] = u, gparam[1] = v; } - void set( long u, long v ) { gparam[0] = u, gparam[1] = v; } - long nextu() { return gparam[0]++; } - long prevu() { return gparam[0]--; } -}; - -#endif /* __glugridvertex_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/hull.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/hull.cc deleted file mode 100644 index 149c14385..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/hull.cc +++ /dev/null @@ -1,167 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * hull.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/hull.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "hull.h" -#include "gridvertex.h" -#include "gridtrimvertex.h" -#include "gridline.h" -#include "trimline.h" -#include "uarray.h" -#include "trimregion.h" - -Hull::Hull( void ) -{} - -Hull::~Hull( void ) -{} - -/*---------------------------------------------------------------------- - * Hull:init - this routine does the initialization needed before any - * calls to nextupper or nextlower can be made. - *---------------------------------------------------------------------- - */ -void -Hull::init( void ) -{ - TrimVertex *lfirst = left.first(); - TrimVertex *llast = left.last(); - if( lfirst->param[0] <= llast->param[0] ) { - fakeleft.init( left.first() ); - upper.left = &fakeleft; - lower.left = &left; - } else { - fakeleft.init( left.last() ); - lower.left = &fakeleft; - upper.left = &left; - } - upper.left->last(); - lower.left->first(); - - if( top.ustart <= top.uend ) { - upper.line = ⊤ - upper.index = top.ustart; - } else - upper.line = 0; - - if( bot.ustart <= bot.uend ) { - lower.line = ⊥ - lower.index = bot.ustart; - } else - lower.line = 0; - - TrimVertex *rfirst = right.first(); - TrimVertex *rlast = right.last(); - if( rfirst->param[0] <= rlast->param[0] ) { - fakeright.init( right.last() ); - lower.right = &fakeright; - upper.right = &right; - } else { - fakeright.init( right.first() ); - upper.right = &fakeright; - lower.right = &right; - } - upper.right->first(); - lower.right->last(); -} - -/*---------------------------------------------------------------------- - * nextupper - find next vertex on upper hull of trim region. - * - if vertex is on trim curve, set vtop point to - * that vertex. if vertex is on grid, set vtop to - * point to temporary area and stuff coordinants into - * temporary vertex. Also, place grid coords in temporary - * grid vertex. - *---------------------------------------------------------------------- - */ -GridTrimVertex * -Hull::nextupper( GridTrimVertex *gv ) -{ - if( upper.left ) { - gv->set( upper.left->prev() ); - if( gv->isTrimVert() ) return gv; - upper.left = 0; - } - - if( upper.line ) { - assert( upper.index <= upper.line->uend ); - gv->set( uarray.uarray[upper.index], upper.line->vval ); - gv->set( upper.index, upper.line->vindex ); - if( upper.index++ == upper.line->uend ) upper.line = 0; - return gv; - } - - if( upper.right ) { - gv->set( upper.right->next() ); - if( gv->isTrimVert() ) return gv; - upper.right = 0; - } - - return 0; -} - -GridTrimVertex * -Hull::nextlower( register GridTrimVertex *gv ) -{ - if( lower.left ) { - gv->set( lower.left->next() ); - if( gv->isTrimVert() ) return gv; - lower.left = 0; - } - - if( lower.line ) { - gv->set( uarray.uarray[lower.index], lower.line->vval ); - gv->set( lower.index, lower.line->vindex ); - if( lower.index++ == lower.line->uend ) lower.line = 0; - return gv; - } - - if( lower.right ) { - gv->set( lower.right->prev() ); - if( gv->isTrimVert() ) return gv; - lower.right = 0; - } - - return 0; -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/hull.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/hull.h deleted file mode 100644 index c1188f55c..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/hull.h +++ /dev/null @@ -1,74 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * hull.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/hull.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __gluhull_h_ -#define __gluhull_h_ - -#include "trimline.h" -#include "trimregion.h" - -class GridTrimVertex; -class Gridline; -class Uarray; - -class Hull : virtual public TrimRegion { -public: - Hull( void ); - ~Hull( void ); - void init( void ); - GridTrimVertex * nextlower( GridTrimVertex * ); - GridTrimVertex * nextupper( GridTrimVertex * ); -private: - struct Side { - Trimline *left; - Gridline *line; - Trimline *right; - long index; - }; - - Side lower; - Side upper; - Trimline fakeleft; - Trimline fakeright; -}; - - -#endif /* __gluhull_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/intersect.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/intersect.cc deleted file mode 100644 index 1ab5037f7..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/intersect.cc +++ /dev/null @@ -1,670 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ -/* $XFree86$ */ - -/* - * intersect.c++ - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/intersect.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "subdivider.h" -#include "arc.h" -#include "bin.h" -#include "backend.h" -#include "trimvertpool.h" - -/*#define NOTDEF*/ - -enum i_result { INTERSECT_VERTEX, INTERSECT_EDGE }; - -/* local functions */ -#ifndef NDEBUG -static int arc_classify( Arc_ptr, int, REAL ); -#endif -static enum i_result pwlarc_intersect( PwlArc *, int, REAL, int, int[3] ); - - -void -Subdivider::partition( Bin & bin, Bin & left, Bin & intersections, - Bin & right, Bin & unknown, int param, REAL value ) -{ - Bin headonleft, headonright, tailonleft, tailonright; - - for( Arc_ptr jarc = bin.removearc(); jarc; jarc = bin.removearc() ) { - - REAL tdiff = jarc->tail()[param] - value; - REAL hdiff = jarc->head()[param] - value; - - if( tdiff > 0.0 ) { - if( hdiff > 0.0 ) { - right.addarc( jarc ); - } else if( hdiff == 0.0 ) { - tailonright.addarc( jarc ); - } else { - Arc_ptr jtemp; - switch( arc_split(jarc, param, value, 0) ) { - case 2: - tailonright.addarc( jarc ); - headonleft.addarc( jarc->next ); - break; - case 31: - assert( jarc->head()[param] > value ); - right.addarc( jarc ); - tailonright.addarc( jtemp = jarc->next ); - headonleft.addarc( jtemp->next ); - break; - case 32: - assert( jarc->head()[param] <= value ); - tailonright .addarc( jarc ); - headonleft.addarc( jtemp = jarc->next ); - left.addarc( jtemp->next ); - break; - case 4: - right.addarc( jarc ); - tailonright.addarc( jtemp = jarc->next ); - headonleft.addarc( jtemp = jtemp->next ); - left.addarc( jtemp->next ); - } - } - } else if( tdiff == 0.0 ) { - if( hdiff > 0.0 ) { - headonright.addarc( jarc ); - } else if( hdiff == 0.0 ) { - unknown.addarc( jarc ); - } else { - headonleft.addarc( jarc ); - } - } else { - if( hdiff > 0.0 ) { - Arc_ptr jtemp; - switch( arc_split(jarc, param, value, 1) ) { - case 2: - tailonleft.addarc( jarc ); - headonright.addarc( jarc->next ); - break; - case 31: - assert( jarc->head()[param] < value ); - left.addarc( jarc ); - tailonleft.addarc( jtemp = jarc->next ); - headonright.addarc( jtemp->next ); - break; - case 32: - assert( jarc->head()[param] >= value ); - tailonleft.addarc( jarc ); - headonright.addarc( jtemp = jarc->next ); - right.addarc( jtemp->next ); - break; - case 4: - left.addarc( jarc ); - tailonleft.addarc( jtemp = jarc->next ); - headonright.addarc( jtemp = jtemp->next ); - right.addarc( jtemp->next ); - } - } else if( hdiff == 0.0 ) { - tailonleft.addarc( jarc ); - } else { - left.addarc( jarc ); - } - } - } - if( param == 0 ) { - classify_headonleft_s( headonleft, intersections, left, value ); - classify_tailonleft_s( tailonleft, intersections, left, value ); - classify_headonright_s( headonright, intersections, right, value ); - classify_tailonright_s( tailonright, intersections, right, value ); - } else { - classify_headonleft_t( headonleft, intersections, left, value ); - classify_tailonleft_t( tailonleft, intersections, left, value ); - classify_headonright_t( headonright, intersections, right, value ); - classify_tailonright_t( tailonright, intersections, right, value ); - } -} - -inline static void -vert_interp( TrimVertex *n, TrimVertex *l, TrimVertex *r, int p, REAL val ) -{ - assert( val > l->param[p]); - assert( val < r->param[p]); - - n->nuid = l->nuid; - - n->param[p] = val; - if( l->param[1-p] != r->param[1-p] ) { - REAL ratio = (val - l->param[p]) / (r->param[p] - l->param[p]); - n->param[1-p] = l->param[1-p] + - ratio * (r->param[1-p] - l->param[1-p]); - } else { - n->param[1-p] = l->param[1-p]; - } -} - -int -Subdivider::arc_split( Arc_ptr jarc, int param, REAL value, int dir ) -{ - int maxvertex = jarc->pwlArc->npts; - Arc_ptr jarc1; -#ifdef NOTDEF - Arc_ptr jarc2, jarc3; -#endif - TrimVertex* v = jarc->pwlArc->pts; - - int loc[3]; - switch( pwlarc_intersect( jarc->pwlArc, param, value, dir, loc ) ) { - - // When the parameter value lands on a vertex, life is sweet - case INTERSECT_VERTEX: { - jarc1 = new(arcpool) Arc( jarc, new( pwlarcpool) PwlArc( maxvertex-loc[1], &v[loc[1]] ) ); - jarc->pwlArc->npts = loc[1] + 1; - jarc1->next = jarc->next; - jarc1->next->prev = jarc1; - jarc->next = jarc1; - jarc1->prev = jarc; - assert(jarc->check() != 0); - return 2; - } - - // When the parameter value intersects an edge, we have to - // interpolate a new vertex. There are special cases - // if the new vertex is adjacent to one or both of the - // endpoints of the arc. - case INTERSECT_EDGE: { - int i, j; - if( dir == 0 ) { - i = loc[0]; - j = loc[2]; - } else { - i = loc[2]; - j = loc[0]; - } - -#ifndef NOTDEF - // The split is between vertices at index j and i, in that - // order (j < i) - - // JEB: This code is my idea of how to do the split without - // increasing the number of links. I'm doing this so that - // the is_rect routine can recognize rectangles created by - // subdivision. In exchange for simplifying the curve list, - // however, it costs in allocated space and vertex copies. - - TrimVertex *newjunk = trimvertexpool.get(maxvertex -i+1 /*-j*/); - int k; - for(k=0; knuid; - } - - TrimVertex *vcopy = trimvertexpool.get(maxvertex); - for(k=0; kpwlArc->pts=vcopy; - - v[i].nuid = jarc->nuid; - v[j].nuid = jarc->nuid; - vert_interp( &newjunk[0], &v[loc[0]], &v[loc[2]], param, value ); - - if( showingDegenerate() ) - backend.triangle( &v[i], &newjunk[0], &v[j] ); - - vcopy[j+1].param[0]=newjunk[0].param[0]; - vcopy[j+1].param[1]=newjunk[0].param[1]; - - - jarc1 = new(arcpool) Arc( jarc, - new(pwlarcpool) PwlArc(maxvertex-i+1 , newjunk ) ); - - jarc->pwlArc->npts = j+2; - jarc1->next = jarc->next; - jarc1->next->prev = jarc1; - jarc->next = jarc1; - jarc1->prev = jarc; - assert(jarc->check() != 0); - - return 2; -#endif //not NOTDEF - // JEB: This is the original version: -#ifdef NOTDEF - - TrimVertex *newjunk = trimvertexpool.get(3); - v[i].nuid = jarc->nuid; - v[j].nuid = jarc->nuid; - newjunk[0] = v[j]; - newjunk[2] = v[i]; - vert_interp( &newjunk[1], &v[loc[0]], &v[loc[2]], param, value ); - - if( showingDegenerate() ) - backend.triangle( &newjunk[2], &newjunk[1], &newjunk[0] ); - - // New vertex adjacent to both endpoints - if (maxvertex == 2) { - jarc1 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( 2, newjunk+1 ) ); - jarc->pwlArc->npts = 2; - jarc->pwlArc->pts = newjunk; - jarc1->next = jarc->next; - jarc1->next->prev = jarc1; - jarc->next = jarc1; - jarc1->prev = jarc; - assert(jarc->check() != 0); - - return 2; - - // New vertex adjacent to ending point of arc - } else if (maxvertex - j == 2) { - jarc1 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( 2, newjunk ) ); - jarc2 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( 2, newjunk+1 ) ); - jarc->pwlArc->npts = maxvertex-1; - jarc2->next = jarc->next; - jarc2->next->prev = jarc2; - jarc->next = jarc1; - jarc1->prev = jarc; - jarc1->next = jarc2; - jarc2->prev = jarc1; - assert(jarc->check() != 0); - return 31; - - // New vertex adjacent to starting point of arc - } else if (i == 1) { - jarc1 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( 2, newjunk+1 ) ); - jarc2 = new(arcpool) Arc( jarc, - new(pwlarcpool) PwlArc( maxvertex-1, &jarc->pwlArc->pts[1] ) ); - jarc->pwlArc->npts = 2; - jarc->pwlArc->pts = newjunk; - jarc2->next = jarc->next; - jarc2->next->prev = jarc2; - jarc->next = jarc1; - jarc1->prev = jarc; - jarc1->next = jarc2; - jarc2->prev = jarc1; - assert(jarc->check() != 0); - return 32; - - // It's somewhere in the middle - } else { - jarc1 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( 2, newjunk ) ); - jarc2 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( 2, newjunk+1 ) ); - jarc3 = new(arcpool) Arc( jarc, new(pwlarcpool) PwlArc( maxvertex-i, v+i ) ); - jarc->pwlArc->npts = j + 1; - jarc3->next = jarc->next; - jarc3->next->prev = jarc3; - jarc->next = jarc1; - jarc1->prev = jarc; - jarc1->next = jarc2; - jarc2->prev = jarc1; - jarc2->next = jarc3; - jarc3->prev = jarc2; - assert(jarc->check() != 0); - return 4; - } -#endif // NOTDEF - } - default: - return -1; //picked -1 since it's not used - } -} - -/*---------------------------------------------------------------------------- - * pwlarc_intersect - find intersection of pwlArc and isoparametric line - *---------------------------------------------------------------------------- - */ - -static enum i_result -pwlarc_intersect( - PwlArc *pwlArc, - int param, - REAL value, - int dir, - int loc[3] ) -{ - assert( pwlArc->npts > 0 ); - - if( dir ) { - TrimVertex *v = pwlArc->pts; - int imin = 0; - int imax = pwlArc->npts - 1; - assert( value > v[imin].param[param] ); - assert( value < v[imax].param[param] ); - while( (imax - imin) > 1 ) { - int imid = (imax + imin)/2; - if( v[imid].param[param] > value ) - imax = imid; - else if( v[imid].param[param] < value ) - imin = imid; - else { - loc[1] = imid; - return INTERSECT_VERTEX; - } - } - loc[0] = imin; - loc[2] = imax; - return INTERSECT_EDGE; - } else { - TrimVertex *v = pwlArc->pts; - int imax = 0; - int imin = pwlArc->npts - 1; - assert( value > v[imin].param[param] ); - assert( value < v[imax].param[param] ); - while( (imin - imax) > 1 ) { - int imid = (imax + imin)/2; - if( v[imid].param[param] > value ) - imax = imid; - else if( v[imid].param[param] < value ) - imin = imid; - else { - loc[1] = imid; - return INTERSECT_VERTEX; - } - } - loc[0] = imin; - loc[2] = imax; - return INTERSECT_EDGE; - } -} - -#ifndef NDEBUG -/*---------------------------------------------------------------------------- - * arc_classify - determine which side of a line a jarc lies - *---------------------------------------------------------------------------- - */ - -static int -arc_classify( Arc_ptr jarc, int param, REAL value ) -{ - REAL tdiff, hdiff; - if( param == 0 ) { - tdiff = jarc->tail()[0] - value; - hdiff = jarc->head()[0] - value; - } else { - tdiff = jarc->tail()[1] - value; - hdiff = jarc->head()[1] - value; - } - - if( tdiff > 0.0 ) { - if( hdiff > 0.0 ) { - return 0x11; - } else if( hdiff == 0.0 ) { - return 0x12; - } else { - return 0x10; - } - } else if( tdiff == 0.0 ) { - if( hdiff > 0.0 ) { - return 0x21; - } else if( hdiff == 0.0 ) { - return 0x22; - } else { - return 0x20; - } - } else { - if( hdiff > 0.0 ) { - return 0x01; - } else if( hdiff == 0.0 ) { - return 0x02; - } else { - return 0; - } - } -} -#endif - -void -Subdivider::classify_tailonleft_s( Bin& bin, Bin& in, Bin& out, REAL val ) -{ - /* tail at left, head on line */ - Arc_ptr j; - - while( (j = bin.removearc()) != NULL ) { - assert( arc_classify( j, 0, val ) == 0x02 ); - j->clearitail(); - - REAL diff = j->next->head()[0] - val; - if( diff > 0.0 ) { - in.addarc( j ); - } else if( diff < 0.0 ) { - if( ccwTurn_sl( j, j->next ) ) - out.addarc( j ); - else - in.addarc( j ); - } else { - if( j->next->tail()[1] > j->next->head()[1] ) - in.addarc(j); - else - out.addarc(j); - } - } -} - -void -Subdivider::classify_tailonleft_t( Bin& bin, Bin& in, Bin& out, REAL val ) -{ - /* tail at left, head on line */ - Arc_ptr j; - - while( (j = bin.removearc()) != NULL ) { - assert( arc_classify( j, 1, val ) == 0x02 ); - j->clearitail(); - - REAL diff = j->next->head()[1] - val; - if( diff > 0.0 ) { - in.addarc( j ); - } else if( diff < 0.0 ) { - if( ccwTurn_tl( j, j->next ) ) - out.addarc( j ); - else - in.addarc( j ); - } else { - if (j->next->tail()[0] > j->next->head()[0] ) - out.addarc( j ); - else - in.addarc( j ); - } - } -} - -void -Subdivider::classify_headonleft_s( Bin& bin, Bin& in, Bin& out, REAL val ) -{ - /* tail on line, head at left */ - Arc_ptr j; - - while( (j = bin.removearc()) != NULL ) { - assert( arc_classify( j, 0, val ) == 0x20 ); - - j->setitail(); - - REAL diff = j->prev->tail()[0] - val; - if( diff > 0.0 ) { - out.addarc( j ); - } else if( diff < 0.0 ) { - if( ccwTurn_sl( j->prev, j ) ) - out.addarc( j ); - else - in.addarc( j ); - } else { - if( j->prev->tail()[1] > j->prev->head()[1] ) - in.addarc( j ); - else - out.addarc( j ); - } - } -} - -void -Subdivider::classify_headonleft_t( Bin& bin, Bin& in, Bin& out, REAL val ) -{ - /* tail on line, head at left */ - Arc_ptr j; - - while( (j = bin.removearc()) != NULL ) { - assert( arc_classify( j, 1, val ) == 0x20 ); - j->setitail(); - - REAL diff = j->prev->tail()[1] - val; - if( diff > 0.0 ) { - out.addarc( j ); - } else if( diff < 0.0 ) { - if( ccwTurn_tl( j->prev, j ) ) - out.addarc( j ); - else - in.addarc( j ); - } else { - if( j->prev->tail()[0] > j->prev->head()[0] ) - out.addarc( j ); - else - in.addarc( j ); - } - } -} - - -void -Subdivider::classify_tailonright_s( Bin& bin, Bin& in, Bin& out, REAL val ) -{ - /* tail at right, head on line */ - Arc_ptr j; - - while( (j = bin.removearc()) != NULL ) { - assert( arc_classify( j, 0, val ) == 0x12); - - j->clearitail(); - - REAL diff = j->next->head()[0] - val; - if( diff > 0.0 ) { - if( ccwTurn_sr( j, j->next ) ) - out.addarc( j ); - else - in.addarc( j ); - } else if( diff < 0.0 ) { - in.addarc( j ); - } else { - if( j->next->tail()[1] > j->next->head()[1] ) - out.addarc( j ); - else - in.addarc( j ); - } - } -} - -void -Subdivider::classify_tailonright_t( Bin& bin, Bin& in, Bin& out, REAL val ) -{ - /* tail at right, head on line */ - Arc_ptr j; - - while( (j = bin.removearc()) != NULL ) { - assert( arc_classify( j, 1, val ) == 0x12); - - j->clearitail(); - - REAL diff = j->next->head()[1] - val; - if( diff > 0.0 ) { - if( ccwTurn_tr( j, j->next ) ) - out.addarc( j ); - else - in.addarc( j ); - } else if( diff < 0.0 ) { - in.addarc( j ); - } else { - if( j->next->tail()[0] > j->next->head()[0] ) - in.addarc( j ); - else - out.addarc( j ); - } - } -} - -void -Subdivider::classify_headonright_s( Bin& bin, Bin& in, Bin& out, REAL val ) -{ - /* tail on line, head at right */ - Arc_ptr j; - - while( (j = bin.removearc()) != NULL ) { - assert( arc_classify( j, 0, val ) == 0x21 ); - - j->setitail(); - - REAL diff = j->prev->tail()[0] - val; - if( diff > 0.0 ) { - if( ccwTurn_sr( j->prev, j ) ) - out.addarc( j ); - else - in.addarc( j ); - } else if( diff < 0.0 ) { - out.addarc( j ); - } else { - if( j->prev->tail()[1] > j->prev->head()[1] ) - out.addarc( j ); - else - in.addarc( j ); - } - } -} - -void -Subdivider::classify_headonright_t( Bin& bin, Bin& in, Bin& out, REAL val ) -{ - /* tail on line, head at right */ - Arc_ptr j; - - while( (j = bin.removearc()) != NULL ) { - assert( arc_classify( j, 1, val ) == 0x21 ); - - j->setitail(); - - REAL diff = j->prev->tail()[1] - val; - if( diff > 0.0 ) { - if( ccwTurn_tr( j->prev, j ) ) - out.addarc( j ); - else - in.addarc( j ); - } else if( diff < 0.0 ) { - out.addarc( j ); - } else { - if( j->prev->tail()[0] > j->prev->head()[0] ) - in.addarc( j ); - else - out.addarc( j ); - } - } -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/jarcloc.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/jarcloc.h deleted file mode 100644 index 9762f5e03..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/jarcloc.h +++ /dev/null @@ -1,93 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * jarcloc.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/jarcloc.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glujarcloc_h_ -#define __glujarcloc_h_ - -#include "arc.h" - -class Jarcloc { -private: - Arc_ptr arc; - TrimVertex *p; - TrimVertex *plast; -public: - inline void init( Arc_ptr a, long first, long last ) { arc = a; p=&a->pwlArc->pts[first]; plast = &a->pwlArc->pts[last]; } - inline TrimVertex * getnextpt( void ); - inline TrimVertex * getprevpt( void ); - inline void reverse(); -}; - -inline void -Jarcloc::reverse() -{ - if( plast == &arc->pwlArc->pts[0] ) - plast = &arc->pwlArc->pts[arc->pwlArc->npts - 1]; - else - plast = &arc->pwlArc->pts[0]; -} - -inline TrimVertex * -Jarcloc::getnextpt() -{ - assert( p <= plast ); - if( p == plast ) { - arc = arc->next; - p = &arc->pwlArc->pts[0]; - plast = &arc->pwlArc->pts[arc->pwlArc->npts - 1]; - assert( p < plast ); - } - return p++; -} - -inline TrimVertex * -Jarcloc::getprevpt() -{ - assert( p >= plast ); - if( p == plast ) { - arc = arc->prev; - p = &arc->pwlArc->pts[arc->pwlArc->npts - 1]; - plast = &arc->pwlArc->pts[0]; - assert( p > plast ); - } - return p--; -} -#endif /* __glujarcloc_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/knotvector.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/knotvector.cc deleted file mode 100644 index e7cf8c21a..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/knotvector.cc +++ /dev/null @@ -1,138 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * knotvector.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/knotvector.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "knotvector.h" -#include "defines.h" - - -void Knotvector::init( long _knotcount, long _stride, long _order, INREAL *_knotlist ) -{ - knotcount = _knotcount; - stride = _stride; - order = _order; - knotlist = new Knot[_knotcount]; - assert( knotlist != 0 ); - - for( int i = 0; i != _knotcount; i++ ) - knotlist[i] = (Knot) _knotlist[i]; -} - -Knotvector::Knotvector( void ) -{ - knotlist = 0; -} - -Knotvector::~Knotvector( void ) -{ - if( knotlist ) delete[] knotlist; -} - -int Knotvector::validate( void ) -{ - /* kindex is used as an array index so subtract one first, - * this propagates throughout the code so study carefully */ - long kindex = knotcount-1; - - if( order < 1 || order > MAXORDER ) { - // spline order un-supported - return( 1 ); - } - - if( knotcount < (2 * order) ) { - // too few knots - return( 2 ); - } - - if( identical( knotlist[kindex-(order-1)], knotlist[order-1]) ) { - // valid knot range is empty - return( 3 ); - } - - for( long i = 0; i < kindex; i++) - if( knotlist[i] > knotlist[i+1] ) { - // decreasing knot sequence - return( 4 ); - } - - /* check for valid multiplicity */ - - /* kindex is currently the index of the last knot. - * In the next loop it is decremented to ignore the last knot - * and the loop stops when kindex is 2 so as to ignore the first - * knot as well. These knots are not used in computing - * knot multiplicities. - */ - - long multi = 1; - for( ; kindex >= 1; kindex-- ) { - if( knotlist[kindex] - knotlist[kindex-1] < TOLERANCE ) { - multi++; - continue; - } - if ( multi > order ) { - // knot multiplicity greater than order of spline - return( 5 ); - } - multi = 1; - } - - if ( multi > order ) { - // knot multiplicity greater than order of spline - return( 5 ); - } - - return 0; -} - -void Knotvector::show( char *msg ) -{ -#ifndef NDEBUG - dprintf( "%s\n", msg ); - dprintf( "order = %ld, count = %ld\n", order, knotcount ); - - for( int i=0; i -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "mystring.h" -#include "mymath.h" -#include "backend.h" -#include "nurbsconsts.h" -#include "mapdesc.h" - -Mapdesc::Mapdesc( long _type, int _israt, int _ncoords, Backend& b ) - : backend( b ) -{ - type = _type; - isrational = _israt; - ncoords = _ncoords; - hcoords = _ncoords + (_israt ? 0 : 1 ); - inhcoords = _ncoords - (_israt ? 1 : 0 ); - mask = ((1<<(inhcoords*2))-1); - next = 0; - - assert( hcoords <= MAXCOORDS ); - assert( inhcoords >= 1 ); - - pixel_tolerance = 1.0; - error_tolerance = 1.0; - bbox_subdividing = N_NOBBOXSUBDIVISION; - culling_method = N_NOCULLING; - sampling_method = N_NOSAMPLING; - clampfactor = N_NOCLAMPING; - minsavings = N_NOSAVINGSSUBDIVISION; - s_steps = 0.0; - t_steps = 0.0; - maxrate = ( s_steps < 0.0 ) ? 0.0 : s_steps; - maxsrate = ( s_steps < 0.0 ) ? 0.0 : s_steps; - maxtrate = ( t_steps < 0.0 ) ? 0.0 : t_steps; - identify( bmat ); - identify( cmat ); - identify( smat ); - for( int i = 0; i != inhcoords; i++ ) - bboxsize[i] = 1.0; -} - -void -Mapdesc::setBboxsize( INREAL *mat ) -{ - for( int i = 0; i != inhcoords; i++ ) - bboxsize[i] = (REAL) mat[i]; -} - -void -Mapdesc::identify( REAL dest[MAXCOORDS][MAXCOORDS] ) -{ - memset( dest, 0, sizeof( dest ) ); - for( int i=0; i != hcoords; i++ ) - dest[i][i] = 1.0; -} - -void -Mapdesc::surfbbox( REAL bb[2][MAXCOORDS] ) -{ - backend.surfbbox( type, bb[0], bb[1] ); -} - -void -Mapdesc::copy( REAL dest[MAXCOORDS][MAXCOORDS], long n, INREAL *src, - long rstride, long cstride ) -{ - assert( n >= 0 ); - for( int i=0; i != n; i++ ) - for( int j=0; j != n; j++ ) - dest[i][j] = src[i*rstride + j*cstride]; -} - -/*-------------------------------------------------------------------------- - * copyPt - copy a homogeneous point - *-------------------------------------------------------------------------- - */ -void -Mapdesc::copyPt( REAL *d, REAL *s ) -{ - assert( hcoords > 0 ); - switch( hcoords ) { - case 4: - d[3] = s[3]; - d[2] = s[2]; - d[1] = s[1]; - d[0] = s[0]; - break; - case 3: - d[2] = s[2]; - d[1] = s[1]; - d[0] = s[0]; - break; - case 2: - d[1] = s[1]; - d[0] = s[0]; - break; - case 1: - d[0] = s[0]; - break; - case 5: - d[4] = s[4]; - d[3] = s[3]; - d[2] = s[2]; - d[1] = s[1]; - d[0] = s[0]; - break; - default: - memcpy( d, s, hcoords * sizeof( REAL ) ); - break; - } -} - -/*-------------------------------------------------------------------------- - * sumPt - compute affine combination of two homogeneous points - *-------------------------------------------------------------------------- - */ -void -Mapdesc::sumPt( REAL *dst, REAL *src1, REAL *src2, register REAL alpha, register REAL beta ) -{ - assert( hcoords > 0 ); - switch( hcoords ) { - case 4: - dst[3] = src1[3] * alpha + src2[3] * beta; - dst[2] = src1[2] * alpha + src2[2] * beta; - dst[1] = src1[1] * alpha + src2[1] * beta; - dst[0] = src1[0] * alpha + src2[0] * beta; - break; - case 3: - dst[2] = src1[2] * alpha + src2[2] * beta; - dst[1] = src1[1] * alpha + src2[1] * beta; - dst[0] = src1[0] * alpha + src2[0] * beta; - break; - case 2: - dst[1] = src1[1] * alpha + src2[1] * beta; - dst[0] = src1[0] * alpha + src2[0] * beta; - break; - case 1: - dst[0] = src1[0] * alpha + src2[0] * beta; - break; - case 5: - dst[4] = src1[4] * alpha + src2[4] * beta; - dst[3] = src1[3] * alpha + src2[3] * beta; - dst[2] = src1[2] * alpha + src2[2] * beta; - dst[1] = src1[1] * alpha + src2[1] * beta; - dst[0] = src1[0] * alpha + src2[0] * beta; - break; - default: { - for( int i = 0; i != hcoords; i++ ) - dst[i] = src1[i] * alpha + src2[i] * beta; - } - break; - } -} - -/*-------------------------------------------------------------------------- - * clipbits - compute bit-vector indicating point/window position - * of a (transformed) homogeneous point - *-------------------------------------------------------------------------- - */ -unsigned int -Mapdesc::clipbits( REAL *p ) -{ - assert( inhcoords >= 0 ); - assert( inhcoords <= 3 ); - - register int nc = inhcoords; - register REAL pw = p[nc]; - register REAL nw = -pw; - register unsigned int bits = 0; - - if( pw == 0.0 ) return mask; - - if( pw > 0.0 ) { - switch( nc ) { - case 3: - if( p[2] <= pw ) bits |= (1<<5); - if( p[2] >= nw ) bits |= (1<<4); - if( p[1] <= pw ) bits |= (1<<3); - if( p[1] >= nw ) bits |= (1<<2); - if( p[0] <= pw ) bits |= (1<<1); - if( p[0] >= nw ) bits |= (1<<0); - return bits; - case 2: - if( p[1] <= pw ) bits |= (1<<3); - if( p[1] >= nw ) bits |= (1<<2); - if( p[0] <= pw ) bits |= (1<<1); - if( p[0] >= nw ) bits |= (1<<0); - return bits; - case 1: - if( p[0] <= pw ) bits |= (1<<1); - if( p[0] >= nw ) bits |= (1<<0); - return bits; - default: { - int bit = 1; - for( int i=0; i= nw ) bits |= bit; - bit <<= 1; - if( p[i] <= pw ) bits |= bit; - bit <<= 1; - } - abort(); - break; - } - } - } else { - switch( nc ) { - case 3: - if( p[2] <= nw ) bits |= (1<<5); - if( p[2] >= pw ) bits |= (1<<4); - if( p[1] <= nw ) bits |= (1<<3); - if( p[1] >= pw ) bits |= (1<<2); - if( p[0] <= nw ) bits |= (1<<1); - if( p[0] >= pw ) bits |= (1<<0); - return bits; - case 2: - if( p[1] <= nw ) bits |= (1<<3); - if( p[1] >= pw ) bits |= (1<<2); - if( p[0] <= nw ) bits |= (1<<1); - if( p[0] >= pw ) bits |= (1<<0); - return bits; - case 1: - if( p[0] <= nw ) bits |= (1<<1); - if( p[0] >= pw ) bits |= (1<<0); - return bits; - default: { - int bit = 1; - for( int i=0; i= pw ) bits |= bit; - bit <<= 1; - if( p[i] <= nw ) bits |= bit; - bit <<= 1; - } - abort(); - break; - } - } - } - return bits; -} - -/*-------------------------------------------------------------------------- - * xformRational - transform a homogeneous point - *-------------------------------------------------------------------------- - */ -void -Mapdesc::xformRational( Maxmatrix mat, REAL *d, REAL *s ) -{ - assert( hcoords >= 0 ); - - if( hcoords == 3 ) { - REAL x = s[0]; - REAL y = s[1]; - REAL z = s[2]; - d[0] = x*mat[0][0]+y*mat[1][0]+z*mat[2][0]; - d[1] = x*mat[0][1]+y*mat[1][1]+z*mat[2][1]; - d[2] = x*mat[0][2]+y*mat[1][2]+z*mat[2][2]; - } else if( hcoords == 4 ) { - REAL x = s[0]; - REAL y = s[1]; - REAL z = s[2]; - REAL w = s[3]; - d[0] = x*mat[0][0]+y*mat[1][0]+z*mat[2][0]+w*mat[3][0]; - d[1] = x*mat[0][1]+y*mat[1][1]+z*mat[2][1]+w*mat[3][1]; - d[2] = x*mat[0][2]+y*mat[1][2]+z*mat[2][2]+w*mat[3][2]; - d[3] = x*mat[0][3]+y*mat[1][3]+z*mat[2][3]+w*mat[3][3]; - } else { - for( int i=0; i != hcoords; i++ ) { - d[i] = 0; - for( int j = 0; j != hcoords; j++ ) - d[i] += s[j] * mat[j][i]; - } - } -} - -/*-------------------------------------------------------------------------- - * xformNonrational - transform a inhomogeneous point to a homogeneous point - *-------------------------------------------------------------------------- - */ -void -Mapdesc::xformNonrational( Maxmatrix mat, REAL *d, REAL *s ) -{ - if( inhcoords == 2 ) { - REAL x = s[0]; - REAL y = s[1]; - d[0] = x*mat[0][0]+y*mat[1][0]+mat[2][0]; - d[1] = x*mat[0][1]+y*mat[1][1]+mat[2][1]; - d[2] = x*mat[0][2]+y*mat[1][2]+mat[2][2]; - } else if( inhcoords == 3 ) { - REAL x = s[0]; - REAL y = s[1]; - REAL z = s[2]; - d[0] = x*mat[0][0]+y*mat[1][0]+z*mat[2][0]+mat[3][0]; - d[1] = x*mat[0][1]+y*mat[1][1]+z*mat[2][1]+mat[3][1]; - d[2] = x*mat[0][2]+y*mat[1][2]+z*mat[2][2]+mat[3][2]; - d[3] = x*mat[0][3]+y*mat[1][3]+z*mat[2][3]+mat[3][3]; - } else { - assert( inhcoords >= 0 ); - for( int i=0; i != hcoords; i++ ) { - d[i] = mat[inhcoords][i]; - for( int j = 0; j < inhcoords; j++ ) - d[i] += s[j] * mat[j][i]; - } - } -} - -/*-------------------------------------------------------------------------- - * xformAndCullCheck - transform a set of points that may be EITHER - * homogeneous or inhomogeneous depending on the map description and - * check if they are either completely inside, completely outside, - * or intersecting the viewing frustrum. - *-------------------------------------------------------------------------- - */ -int -Mapdesc::xformAndCullCheck( - REAL *pts, int uorder, int ustride, int vorder, int vstride ) -{ - assert( uorder > 0 ); - assert( vorder > 0 ); - - unsigned int inbits = mask; - unsigned int outbits = 0; - - REAL *p = pts; - for( REAL *pend = p + uorder * ustride; p != pend; p += ustride ) { - REAL *q = p; - for( REAL *qend = q + vorder * vstride; q != qend; q += vstride ) { - REAL cpts[MAXCOORDS]; - xformCulling( cpts, q ); - unsigned int bits = clipbits( cpts ); - outbits |= bits; - inbits &= bits; - if( ( outbits == mask ) && ( inbits != mask ) ) return CULL_ACCEPT; - } - } - - if( outbits != mask ) { - return CULL_TRIVIAL_REJECT; - } else if( inbits == mask ) { - return CULL_TRIVIAL_ACCEPT; - } else { - return CULL_ACCEPT; - } -} - -/*-------------------------------------------------------------------------- - * cullCheck - check if a set of homogeneous transformed points are - * either completely inside, completely outside, - * or intersecting the viewing frustrum. - *-------------------------------------------------------------------------- - */ -int -Mapdesc::cullCheck( REAL *pts, int uorder, int ustride, int vorder, int vstride ) -{ - unsigned int inbits = mask; - unsigned int outbits = 0; - - REAL *p = pts; - for( REAL *pend = p + uorder * ustride; p != pend; p += ustride ) { - REAL *q = p; - for( REAL *qend = q + vorder * vstride; q != qend; q += vstride ) { - unsigned int bits = clipbits( q ); - outbits |= bits; - inbits &= bits; - if( ( outbits == mask ) && ( inbits != mask ) ) return CULL_ACCEPT; - } - } - - if( outbits != mask ) { - return CULL_TRIVIAL_REJECT; - } else if( inbits == mask ) { - return CULL_TRIVIAL_ACCEPT; - } else { - return CULL_ACCEPT; - } -} - -/*-------------------------------------------------------------------------- - * cullCheck - check if a set of homogeneous transformed points are - * either completely inside, completely outside, - * or intersecting the viewing frustrum. - *-------------------------------------------------------------------------- - */ -int -Mapdesc::cullCheck( REAL *pts, int order, int stride ) -{ - unsigned int inbits = mask; - unsigned int outbits = 0; - - REAL *p = pts; - for( REAL *pend = p + order * stride; p != pend; p += stride ) { - unsigned int bits = clipbits( p ); - outbits |= bits; - inbits &= bits; - if( ( outbits == mask ) && ( inbits != mask ) ) return CULL_ACCEPT; - } - - if( outbits != mask ) { - return CULL_TRIVIAL_REJECT; - } else if( inbits == mask ) { - return CULL_TRIVIAL_ACCEPT; - } else { - return CULL_ACCEPT; - } -} - -/*-------------------------------------------------------------------------- - * xformSampling - transform a set of points that may be EITHER - * homogeneous or inhomogeneous depending on the map description - * into sampling space - *-------------------------------------------------------------------------- - */ -void -Mapdesc::xformSampling( REAL *pts, int order, int stride, REAL *sp, int outstride ) -{ - xformMat( smat, pts, order, stride, sp, outstride ); -} - -void -Mapdesc::xformBounding( REAL *pts, int order, int stride, REAL *sp, int outstride ) -{ - xformMat( bmat, pts, order, stride, sp, outstride ); -} - -/*-------------------------------------------------------------------------- - * xformCulling - transform a set of points that may be EITHER - * homogeneous or inhomogeneous depending on the map description - * into culling space - *-------------------------------------------------------------------------- - */ -void -Mapdesc::xformCulling( REAL *pts, int order, int stride, REAL *cp, int outstride ) -{ - xformMat( cmat, pts, order, stride, cp, outstride ); -} - -/*-------------------------------------------------------------------------- - * xformCulling - transform a set of points that may be EITHER - * homogeneous or inhomogeneous depending on the map description - * into culling space - *-------------------------------------------------------------------------- - */ -void -Mapdesc::xformCulling( REAL *pts, - int uorder, int ustride, - int vorder, int vstride, - REAL *cp, int outustride, int outvstride ) -{ - xformMat( cmat, pts, uorder, ustride, vorder, vstride, cp, outustride, outvstride ); -} - -/*-------------------------------------------------------------------------- - * xformSampling - transform a set of points that may be EITHER - * homogeneous or inhomogeneous depending on the map description - * into sampling space - *-------------------------------------------------------------------------- - */ -void -Mapdesc::xformSampling( REAL *pts, - int uorder, int ustride, - int vorder, int vstride, - REAL *sp, int outustride, int outvstride ) -{ - xformMat( smat, pts, uorder, ustride, vorder, vstride, sp, outustride, outvstride ); -} - -void -Mapdesc::xformBounding( REAL *pts, - int uorder, int ustride, - int vorder, int vstride, - REAL *sp, int outustride, int outvstride ) -{ - xformMat( bmat, pts, uorder, ustride, vorder, vstride, sp, outustride, outvstride ); -} - -void -Mapdesc::xformMat( - Maxmatrix mat, - REAL * pts, - int order, - int stride, - REAL * cp, - int outstride ) -{ - if( isrational ) { - REAL *pend = pts + order * stride; - for( REAL *p = pts ; p != pend; p += stride ) { - xformRational( mat, cp, p ); - cp += outstride; - } - } else { - REAL *pend = pts + order * stride; - for( REAL *p = pts ; p != pend; p += stride ) { - xformNonrational( mat, cp, p ); - cp += outstride; - } - } -} - -void -Mapdesc::xformMat( Maxmatrix mat, REAL *pts, - int uorder, int ustride, - int vorder, int vstride, - REAL *cp, int outustride, int outvstride ) -{ - if( isrational ) { - REAL *pend = pts + uorder * ustride; - for( REAL *p = pts ; p != pend; p += ustride ) { - REAL *cpts2 = cp; - REAL *qend = p + vorder * vstride; - for( REAL *q = p; q != qend; q += vstride ) { - xformRational( mat, cpts2, q ); - cpts2 += outvstride; - } - cp += outustride; - } - } else { - REAL *pend = pts + uorder * ustride; - for( REAL *p = pts ; p != pend; p += ustride ) { - REAL *cpts2 = cp; - REAL *qend = p + vorder * vstride; - for( REAL *q = p; q != qend; q += vstride ) { - xformNonrational( mat, cpts2, q ); - cpts2 += outvstride; - } - cp += outustride; - } - } -} - -/*-------------------------------------------------------------------------- - * subdivide - subdivide a curve along an isoparametric line - *-------------------------------------------------------------------------- - */ - -void -Mapdesc::subdivide( REAL *src, REAL *dst, REAL v, int stride, int order ) -{ - REAL mv = 1.0 - v; - - for( REAL *send=src+stride*order; src!=send; send-=stride, dst+=stride ) { - copyPt( dst, src ); - REAL *qpnt = src + stride; - for( REAL *qp=src; qpnt!=send; qp=qpnt, qpnt+=stride ) - sumPt( qp, qp, qpnt, mv, v ); - } -} - -/*-------------------------------------------------------------------------- - * subdivide - subdivide a patch along an isoparametric line - *-------------------------------------------------------------------------- - */ - -void -Mapdesc::subdivide( REAL *src, REAL *dst, REAL v, - int so, int ss, int to, int ts ) -{ - REAL mv = 1.0 - v; - - for( REAL *slast = src+ss*so; src != slast; src += ss, dst += ss ) { - REAL *sp = src; - REAL *dp = dst; - for( REAL *send = src+ts*to; sp != send; send -= ts, dp += ts ) { - copyPt( dp, sp ); - REAL *qp = sp; - for( REAL *qpnt = sp+ts; qpnt != send; qp = qpnt, qpnt += ts ) - sumPt( qp, qp, qpnt, mv, v ); - } - } -} - - -#define sign(x) ((x > 0) ? 1 : ((x < 0.0) ? -1 : 0)) - -/*-------------------------------------------------------------------------- - * project - project a set of homogeneous coordinates into inhomogeneous ones - *-------------------------------------------------------------------------- - */ -int -Mapdesc::project( REAL *src, int rstride, int cstride, - REAL *dest, int trstride, int tcstride, - int nrows, int ncols ) -{ - int s = sign( src[inhcoords] ); - REAL *rlast = src + nrows * rstride; - REAL *trptr = dest; - for( REAL *rptr=src; rptr != rlast; rptr+=rstride, trptr+=trstride ) { - REAL *clast = rptr + ncols * cstride; - REAL *tcptr = trptr; - for( REAL *cptr = rptr; cptr != clast; cptr+=cstride, tcptr+=tcstride ) { - REAL *coordlast = cptr + inhcoords; - if( sign( *coordlast ) != s ) return 0; - REAL *tcoord = tcptr; - for( REAL *coord = cptr; coord != coordlast; coord++, tcoord++ ) { - *tcoord = *coord / *coordlast; - } - } - } - return 1; -} - -/*-------------------------------------------------------------------------- - * project - project a set of homogeneous coordinates into inhomogeneous ones - *-------------------------------------------------------------------------- - */ -int -Mapdesc::project( REAL *src, int stride, REAL *dest, int tstride, int ncols ) -{ - int s = sign( src[inhcoords] ); - - REAL *clast = src + ncols * stride; - for( REAL *cptr = src, *tcptr = dest; cptr != clast; cptr+=stride, tcptr+=tstride ) { - REAL *coordlast = cptr + inhcoords; - if( sign( *coordlast ) != s ) return 0; - for( REAL *coord = cptr, *tcoord = tcptr; coord != coordlast; coord++, tcoord++ ) - *tcoord = *coord / *coordlast; - } - - return 1; -} - -int -Mapdesc::bboxTooBig( - REAL *p, - int rstride, - int cstride, - int nrows, - int ncols, - REAL bb[2][MAXCOORDS] ) -{ - REAL bbpts[MAXORDER][MAXORDER][MAXCOORDS]; - const int trstride = sizeof(bbpts[0]) / sizeof(REAL); - const int tcstride = sizeof(bbpts[0][0]) / sizeof(REAL); - - // points have been transformed, therefore they are homogeneous - // project points - int val = project( p, rstride, cstride, - &bbpts[0][0][0], trstride, tcstride, nrows, ncols ); - if( val == 0 ) return -1; - - // compute bounding box - bbox( bb, &bbpts[0][0][0], trstride, tcstride, nrows, ncols ); - - // find out if bounding box can't fit in unit cube - if( bbox_subdividing == N_BBOXROUND ) { - for( int k=0; k != inhcoords; k++ ) - if( ceilf(bb[1][k]) - floorf(bb[0][k]) > bboxsize[k] ) return 1; - } else { - for( int k=0; k != inhcoords; k++ ) - if( bb[1][k] - bb[0][k] > bboxsize[k] ) return 1; - } - return 0; -} - -void -Mapdesc::bbox( - REAL bb[2][MAXCOORDS], - REAL *p, - int rstride, - int cstride, - int nrows, - int ncols ) -{ - int k; - for( k=0; k != inhcoords; k++ ) - bb[0][k] = bb[1][k] = p[k]; - - for( int i=0; i != nrows; i++ ) - for( int j=0; j != ncols; j++ ) - for( k=0; k != inhcoords; k++ ) { - REAL x = p[i*rstride + j*cstride + k]; - if( x < bb[0][k] ) bb[0][k] = x; - else if( x > bb[1][k] ) bb[1][k] = x; - } -} - -/*-------------------------------------------------------------------------- - * calcVelocityRational - calculate upper bound on first partial derivative - * of a homogeneous set of points and bounds on each row of points. - *-------------------------------------------------------------------------- - */ -REAL -Mapdesc::calcVelocityRational( REAL *p, int stride, int ncols ) -{ - REAL tmp[MAXORDER][MAXCOORDS]; - - assert( ncols <= MAXORDER ); - - const int tstride = sizeof(tmp[0]) / sizeof(REAL); - - if( project( p, stride, &tmp[0][0], tstride, ncols ) ) { - return calcPartialVelocity( &tmp[0][0], tstride, ncols, 1, 1.0 ); - } else { /* XXX */ - return calcPartialVelocity( &tmp[0][0], tstride, ncols, 1, 1.0 ); - } -} - -/*-------------------------------------------------------------------------- - * calcVelocityNonrational - calculate upper bound on first partial - * derivative of a inhomogeneous set of points. - *-------------------------------------------------------------------------- - */ -REAL -Mapdesc::calcVelocityNonrational( REAL *pts, int stride, int ncols ) -{ - return calcPartialVelocity( pts, stride, ncols, 1, 1.0 ); -} - -int -Mapdesc::isProperty( long property ) -{ - switch ( property ) { - case N_PIXEL_TOLERANCE: - case N_ERROR_TOLERANCE: - case N_CULLING: - case N_BBOX_SUBDIVIDING: - case N_S_STEPS: - case N_T_STEPS: - case N_SAMPLINGMETHOD: - case N_CLAMPFACTOR: - case N_MINSAVINGS: - return 1; - default: - return 0; - } -} - -REAL -Mapdesc::getProperty( long property ) -{ - switch ( property ) { - case N_PIXEL_TOLERANCE: - return pixel_tolerance; - case N_ERROR_TOLERANCE: - return error_tolerance; - case N_CULLING: - return culling_method; - case N_BBOX_SUBDIVIDING: - return bbox_subdividing; - case N_S_STEPS: - return s_steps; - case N_T_STEPS: - return t_steps; - case N_SAMPLINGMETHOD: - return sampling_method; - case N_CLAMPFACTOR: - return clampfactor; - case N_MINSAVINGS: - return minsavings; - default: - abort(); - return -1; //not necessary, needed to shut up compiler - } -} - -void -Mapdesc::setProperty( long property, REAL value ) -{ - - switch ( property ) { - case N_PIXEL_TOLERANCE: - pixel_tolerance = value; - break; - case N_ERROR_TOLERANCE: - error_tolerance = value; - break; - case N_CULLING: - culling_method = value; - break; - case N_BBOX_SUBDIVIDING: - if( value <= 0.0 ) value = N_NOBBOXSUBDIVISION; - bbox_subdividing = value; - break; - case N_S_STEPS: - if( value < 0.0 ) value = 0.0; - s_steps = value; - maxrate = ( value < 0.0 ) ? 0.0 : value; - maxsrate = ( value < 0.0 ) ? 0.0 : value; - break; - case N_T_STEPS: - if( value < 0.0 ) value = 0.0; - t_steps = value; - maxtrate = ( value < 0.0 ) ? 0.0 : value; - break; - case N_SAMPLINGMETHOD: - sampling_method = value; - break; - case N_CLAMPFACTOR: - if( value <= 0.0 ) value = N_NOCLAMPING; - clampfactor = value; - break; - case N_MINSAVINGS: - if( value <= 0.0 ) value = N_NOSAVINGSSUBDIVISION; - minsavings = value; - break; - default: - abort(); - break; - } -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mapdesc.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mapdesc.h deleted file mode 100644 index dc9063e1c..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mapdesc.h +++ /dev/null @@ -1,277 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * mapdesc.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mapdesc.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glumapdesc_h_ -#define __glumapdesc_h_ - -#include "mystdio.h" -#include "types.h" -#include "defines.h" -#include "bufpool.h" -#include "nurbsconsts.h" - -typedef REAL Maxmatrix[MAXCOORDS][MAXCOORDS]; - -class Backend; - -class Mapdesc : public PooledObj { - friend class Maplist; - -public: - Mapdesc( long, int, int, Backend & ); - int isProperty( long ); - REAL getProperty( long ); - void setProperty( long, REAL ); - int isConstantSampling( void ); - int isDomainSampling( void ); - int isRangeSampling( void ); - int isSampling( void ); - int isParametricDistanceSampling( void ); - int isObjectSpaceParaSampling( void ); - int isObjectSpacePathSampling( void ); - int isSurfaceAreaSampling( void ); - int isPathLengthSampling( void ); - int isCulling( void ); - int isBboxSubdividing( void ); - long getType( void ); - - /* curve routines */ - void subdivide( REAL *, REAL *, REAL, int, int ); - int cullCheck( REAL *, int, int ); - void xformBounding( REAL *, int, int, REAL *, int ); - void xformCulling( REAL *, int, int, REAL *, int ); - void xformSampling( REAL *, int, int, REAL *, int ); - void xformMat( Maxmatrix, REAL *, int, int, REAL *, int ); - REAL calcPartialVelocity ( REAL *, int, int, int, REAL ); - int project( REAL *, int, REAL *, int, int ); - REAL calcVelocityRational( REAL *, int, int ); - REAL calcVelocityNonrational( REAL *, int, int ); - - /* surface routines */ - void subdivide( REAL *, REAL *, REAL, int, int, int, int ); - int cullCheck( REAL *, int, int, int, int ); - void xformBounding( REAL *, int, int, int, int, REAL *, int, int ); - void xformCulling( REAL *, int, int, int, int, REAL *, int, int ); - void xformSampling( REAL *, int, int, int, int, REAL *, int, int ); - void xformMat( Maxmatrix, REAL *, int, int, int, int, REAL *, int, int ); - REAL calcPartialVelocity ( REAL *, REAL *, int, int, int, int, int, int, REAL, REAL, int ); - int project( REAL *, int, int, REAL *, int, int, int, int); - void surfbbox( REAL bb[2][MAXCOORDS] ); - - int bboxTooBig( REAL *, int, int, int, int, REAL [2][MAXCOORDS] ); - int xformAndCullCheck( REAL *, int, int, int, int ); - - void identify( REAL[MAXCOORDS][MAXCOORDS] ); - void setBboxsize( INREAL *); - inline void setBmat( INREAL*, long, long ); - inline void setCmat( INREAL*, long, long ); - inline void setSmat( INREAL*, long, long ); - inline int isRational( void ); - inline int getNcoords( void ); - - REAL pixel_tolerance; /* pathlength sampling tolerance */ - REAL error_tolerance; /* parametric error sampling tolerance*/ - REAL object_space_error_tolerance; /* object space tess*/ - REAL clampfactor; - REAL minsavings; - REAL maxrate; - REAL maxsrate; - REAL maxtrate; - REAL bboxsize[MAXCOORDS]; - -private: - long type; - int isrational; - int ncoords; - int hcoords; - int inhcoords; - int mask; - Maxmatrix bmat; - Maxmatrix cmat; - Maxmatrix smat; - REAL s_steps; /* max samples in s direction */ - REAL t_steps; /* max samples in t direction */ - REAL sampling_method; - REAL culling_method; /* check for culling */ - REAL bbox_subdividing; - Mapdesc * next; - Backend & backend; - - void bbox( REAL [2][MAXCOORDS], REAL *, int, int, int, int ); - REAL maxDifference( int, REAL *, int ); - static void copy( Maxmatrix, long, INREAL *, long, long ); - - /* individual control point routines */ - static void transform4d( float[4], float[4], float[4][4] ); - static void multmatrix4d ( float[4][4], const float[4][4], - const float[4][4] ); - void copyPt( REAL *, REAL * ); - void sumPt( REAL *, REAL *, REAL *, REAL, REAL ); - void xformSampling( REAL *, REAL * ); - void xformCulling( REAL *, REAL * ); - void xformRational( Maxmatrix, REAL *, REAL * ); - void xformNonrational( Maxmatrix, REAL *, REAL * ); - unsigned int clipbits( REAL * ); -}; - -inline void -Mapdesc::setBmat( INREAL *mat, long rstride, long cstride ) -{ - copy( bmat, hcoords, mat, rstride, cstride ); -} - -inline void -Mapdesc::setCmat( INREAL *mat, long rstride, long cstride ) -{ - copy( cmat, hcoords, mat, rstride, cstride ); -} - -inline void -Mapdesc::setSmat( INREAL *mat, long rstride, long cstride ) -{ - copy( smat, hcoords, mat, rstride, cstride ); -} - -inline long -Mapdesc::getType( void ) -{ - return type; -} - -inline void -Mapdesc::xformCulling( REAL *d, REAL *s ) -{ - if( isrational ) - xformRational( cmat, d, s ); - else - xformNonrational( cmat, d, s ); -} - -inline void -Mapdesc::xformSampling( REAL *d, REAL *s ) -{ - if( isrational ) - xformRational( smat, d, s ); - else - xformNonrational( smat, d, s ); -} - -inline int -Mapdesc::isRational( void ) -{ - return isrational ? 1 : 0; -} - -inline int -Mapdesc::getNcoords( void ) -{ - return ncoords; -} - -inline int -Mapdesc::isConstantSampling( void ) -{ - return ((sampling_method == N_FIXEDRATE) ? 1 : 0); -} - -inline int -Mapdesc::isDomainSampling( void ) -{ - return ((sampling_method == N_DOMAINDISTANCE) ? 1 : 0); -} - -inline int -Mapdesc::isParametricDistanceSampling( void ) -{ - return ((sampling_method == N_PARAMETRICDISTANCE) ? 1 : 0); -} - -inline int -Mapdesc::isObjectSpaceParaSampling( void ) -{ - return ((sampling_method == N_OBJECTSPACE_PARA) ? 1 : 0); -} - -inline int -Mapdesc::isObjectSpacePathSampling( void ) -{ - return ((sampling_method == N_OBJECTSPACE_PATH) ? 1 : 0); -} - -inline int -Mapdesc::isSurfaceAreaSampling( void ) -{ - return ((sampling_method == N_SURFACEAREA) ? 1 : 0); -} - -inline int -Mapdesc::isPathLengthSampling( void ) -{ - return ((sampling_method == N_PATHLENGTH) ? 1 : 0); -} - -inline int -Mapdesc::isRangeSampling( void ) -{ - return ( isParametricDistanceSampling() || isPathLengthSampling() || - isSurfaceAreaSampling() || - isObjectSpaceParaSampling() || - isObjectSpacePathSampling()); -} - -inline int -Mapdesc::isSampling( void ) -{ - return isRangeSampling() || isConstantSampling() || isDomainSampling(); -} - -inline int -Mapdesc::isCulling( void ) -{ - return ((culling_method != N_NOCULLING) ? 1 : 0); -} - -inline int -Mapdesc::isBboxSubdividing( void ) -{ - return ((bbox_subdividing != N_NOBBOXSUBDIVISION) ? 1 : 0); -} -#endif /* __glumapdesc_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mapdescv.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mapdescv.cc deleted file mode 100644 index 14ff358d2..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mapdescv.cc +++ /dev/null @@ -1,241 +0,0 @@ -/* $XFree86: xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mapdescv.cc,v 1.3tsi Exp $ */ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * mapdescv.c++ - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mapdescv.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "mystring.h" -#include "mymath.h" -#include "nurbsconsts.h" -#include "mapdesc.h" -#include "gluint.h" - -/*-------------------------------------------------------------------------- - * calcPartialVelocity - calculate maximum magnitude of a given partial - * derivative - *-------------------------------------------------------------------------- - */ -REAL -Mapdesc::calcPartialVelocity ( - REAL *p, - int stride, - int ncols, - int partial, - REAL range ) -{ - REAL tmp[MAXORDER][MAXCOORDS]; - REAL mag[MAXORDER]; - - assert( ncols <= MAXORDER ); - - int j, k, t; - // copy inhomogeneous control points into temporary array - for( j=0; j != ncols; j++ ) - for( k=0; k != inhcoords; k++ ) - tmp[j][k] = p[j*stride + k]; - - for( t=0; t != partial; t++ ) - for( j=0; j != ncols-t-1; j++ ) - for( k=0; k != inhcoords; k++ ) - tmp[j][k] = tmp[j+1][k] - tmp[j][k]; - - // compute magnitude and store in mag array - for( j=0; j != ncols-partial; j++ ) { - mag[j] = 0.0; - for( k=0; k != inhcoords; k++ ) - mag[j] += tmp[j][k] * tmp[j][k]; - } - - // compute scale factor - REAL fac = 1; - REAL invt = 1.0 / range; - for( t = ncols-1; t != ncols-1-partial; t-- ) - fac *= t * invt; - - // compute max magnitude of all entries in array - REAL max = 0.0; - for( j=0; j != ncols-partial; j++ ) - if( mag[j] > max ) max = mag[j]; - max = fac * ::SQRT( (float) max ); - - return max; -} - -/*-------------------------------------------------------------------------- - * calcPartialVelocity - calculate maximum magnitude of a given partial - * derivative - *-------------------------------------------------------------------------- - */ -REAL -Mapdesc::calcPartialVelocity ( - REAL *dist, - REAL *p, - int rstride, - int cstride, - int nrows, - int ncols, - int spartial, - int tpartial, - REAL srange, - REAL trange, - int side ) -{ - REAL tmp[MAXORDER][MAXORDER][MAXCOORDS]; - REAL mag[MAXORDER][MAXORDER]; - - assert( nrows <= MAXORDER ); - assert( ncols <= MAXORDER ); - - REAL *tp = &tmp[0][0][0]; - REAL *mp = &mag[0][0]; - const int istride = sizeof( tmp[0]) / sizeof( tmp[0][0][0] ); - const int jstride = sizeof( tmp[0][0]) / sizeof( tmp[0][0][0] ); - const int mistride = sizeof( mag[0]) / sizeof( mag[0][0] ); - const int mjstride = sizeof( mag[0][0]) / sizeof( mag[0][0] ); - const int idist = nrows * istride; - const int jdist = ncols * jstride; - const int id = idist - spartial * istride; - const int jd = jdist - tpartial * jstride; - - { - // copy control points - REAL *ti = tp; - REAL *qi = p; - REAL *til = tp + idist; - for( ; ti != til; ) { - REAL *tj = ti; - REAL *qj = qi; - REAL *tjl = ti + jdist; - for( ; tj != tjl; ) { - for( int k=0; k != inhcoords; k++ ) { - tj[k] = qj[k]; - } - tj += jstride; - qj += cstride; - } - ti += istride; - qi += rstride; - } - } - - { - // compute (s)-partial derivative control points - REAL *til = tp + idist - istride; - const REAL *till = til - ( spartial * istride ); - for( ; til != till; til -= istride ) - for( REAL *ti = tp; ti != til; ti += istride ) - for( REAL *tj = ti, *tjl = tj + jdist; tj != tjl; tj += jstride ) - for( int k=0; k != inhcoords; k++ ) - tj[k] = tj[k+istride] - tj[k]; - } - - { - // compute (s,t)-partial derivative control points - REAL *tjl = tp + jdist - jstride; - const REAL *tjll = tjl - ( tpartial * jstride ); - for( ; tjl != tjll; tjl -= jstride ) - for( REAL *tj = tp; tj != tjl; tj += jstride ) - for( REAL *ti = tj, *til = ti + id; ti != til; ti += istride ) - for( int k=0; k != inhcoords; k++ ) - ti[k] = ti[k+jstride] - ti[k]; - - } - - REAL max = 0.0; - { - // compute magnitude and store in mag array - memset( (void *) mp, 0, sizeof( mag ) ); - for( REAL *ti = tp, *mi = mp, *til = tp + id; ti != til; ti += istride, mi += mistride ) - for( REAL *tj = ti, *mj = mi, *tjl = ti + jd; tj != tjl; tj += jstride, mj += mjstride ) { - for( int k=0; k != inhcoords; k++ ) - *mj += tj[k] * tj[k]; - if( *mj > max ) max = *mj; - } - - } - - int i, j; - - // compute scale factor - REAL fac = 1.0; - { - REAL invs = 1.0 / srange; - REAL invt = 1.0 / trange; - for( int s = nrows-1, slast = s-spartial; s != slast; s-- ) - fac *= s * invs; - for( int t = ncols-1, tlast = t-tpartial; t != tlast; t-- ) - fac *= t * invt; - } - - if( side == 0 ) { - // compute max magnitude of first and last column - dist[0] = 0.0; - dist[1] = 0.0; - for( i=0; i != nrows-spartial; i++ ) { - j = 0; - if( mag[i][j] > dist[0] ) dist[0] = mag[i][j]; - - j = ncols-tpartial-1; - if( mag[i][j] > dist[1] ) dist[1] = mag[i][j]; - } - dist[0] = fac * ::SQRT( dist[0] ); - dist[1] = fac * ::SQRT( dist[1] ); - } else if( side == 1 ) { - // compute max magnitude of first and last row - dist[0] = 0.0; - dist[1] = 0.0; - for( j=0; j != ncols-tpartial; j++ ) { - i = 0; - if( mag[i][j] > dist[0] ) dist[0] = mag[i][j]; - - i = nrows-spartial-1; - if( mag[i][j] > dist[1] ) dist[1] = mag[i][j]; - } - dist[0] = fac * ::SQRT( dist[0] ); - dist[1] = fac * ::SQRT( dist[1] ); - } - - max = fac * ::SQRT( (float) max ); - - return max; -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/maplist.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/maplist.cc deleted file mode 100644 index f74858177..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/maplist.cc +++ /dev/null @@ -1,117 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * maplist.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/maplist.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "mymath.h" -#include "nurbsconsts.h" -#include "maplist.h" -#include "mapdesc.h" -#include "backend.h" - -Maplist::Maplist( Backend& b ) - : mapdescPool( sizeof( Mapdesc ), 10, "mapdesc pool" ), - backend( b ) -{ - maps = 0; lastmap = &maps; -} - -void -Maplist::initialize( void ) -{ - freeMaps(); - define( N_P2D, 0, 2 ); - define( N_P2DR, 1, 3 ); -} - -void -Maplist::add( long type, int israt, int ncoords ) -{ - *lastmap = new(mapdescPool) Mapdesc( type, israt, ncoords, backend ); - lastmap = &((*lastmap)->next); -} - -void -Maplist::define( long type, int israt, int ncoords ) -{ - Mapdesc *m = locate( type ); - assert( m == NULL || ( m->isrational == israt && m->ncoords == ncoords ) ); - add( type, israt, ncoords ); -} - -void -Maplist::remove( Mapdesc *m ) -{ - for( Mapdesc **curmap = &maps; *curmap; curmap = &((*curmap)->next) ) { - if( *curmap == m ) { - *curmap = m->next; - m->deleteMe( mapdescPool ); - return; - } - } - abort(); -} - -void -Maplist::freeMaps( void ) -{ - mapdescPool.clear(); - maps = 0; - lastmap = &maps; -} - -Mapdesc * -Maplist::find( long type ) -{ - Mapdesc *val = locate( type ); - assert( val != 0 ); - return val; -} - -Mapdesc * -Maplist::locate( long type ) -{ - Mapdesc *m; - for( m = maps; m; m = m->next ) - if( m->getType() == type ) break; - return m; -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/maplist.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/maplist.h deleted file mode 100644 index c3bb6cf4f..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/maplist.h +++ /dev/null @@ -1,87 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * maplist.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/maplist.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glumaplist_h_ -#define __glumaplist_h_ - -#include "types.h" -#include "defines.h" -#include "bufpool.h" - -class Backend; -class Mapdesc; - -class Maplist { -public: - Maplist( Backend & ); - void define( long, int, int ); - inline void undefine( long ); - inline int isMap( long ); - - void initialize( void ); - Mapdesc * find( long ); - Mapdesc * locate( long ); - -private: - Pool mapdescPool; - Mapdesc * maps; - Mapdesc ** lastmap; - Backend & backend; - - void add( long, int, int ); - void remove( Mapdesc * ); - void freeMaps( void ); -}; - -inline int -Maplist::isMap( long type ) -{ - return (locate( type ) ? 1 : 0); -} - -inline void -Maplist::undefine( long type ) -{ - Mapdesc *m = locate( type ); - assert( m != 0 ); - remove( m ); -} -#endif /* __glumaplist_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mesher.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mesher.cc deleted file mode 100644 index 815e2ddc1..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mesher.cc +++ /dev/null @@ -1,488 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * mesher.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mesher.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "mesher.h" -#include "gridvertex.h" -#include "gridtrimvertex.h" -#include "jarcloc.h" -#include "gridline.h" -#include "trimline.h" -#include "uarray.h" -#include "backend.h" - - -const float Mesher::ZERO = 0.0; - -Mesher::Mesher( Backend& b ) - : backend( b ), - p( sizeof( GridTrimVertex ), 100, "GridTrimVertexPool" ) -{ - stacksize = 0; - vdata = 0; - lastedge = 0; //needed to prevent purify UMR -} - -Mesher::~Mesher( void ) -{ - if( vdata ) delete[] vdata; -} - -void -Mesher::init( unsigned int npts ) -{ - p.clear(); - if( stacksize < npts ) { - stacksize = 2 * npts; - if( vdata ) delete[] vdata; - vdata = new GridTrimVertex_p[stacksize]; - } -} - -inline void -Mesher::push( GridTrimVertex *gt ) -{ - assert( itop+1 != stacksize ); - vdata[++itop] = gt; -} - -inline void -Mesher::pop( long ) -{ -} - -inline void -Mesher::openMesh() -{ - backend.bgntmesh( "addedge" ); -} - -inline void -Mesher::closeMesh() -{ - backend.endtmesh(); -} - -inline void -Mesher::swapMesh() -{ - backend.swaptmesh(); -} - -inline void -Mesher::clearStack() -{ - itop = -1; - last[0] = 0; -} - -void -Mesher::finishLower( GridTrimVertex *gtlower ) -{ - for( push(gtlower); - nextlower( gtlower=new(p) GridTrimVertex ); - push(gtlower) ) - addLower(); - addLast(); -} - -void -Mesher::finishUpper( GridTrimVertex *gtupper ) -{ - for( push(gtupper); - nextupper( gtupper=new(p) GridTrimVertex ); - push(gtupper) ) - addUpper(); - addLast(); -} - -void -Mesher::mesh( void ) -{ - GridTrimVertex *gtlower, *gtupper; - - Hull::init( ); - nextupper( gtupper = new(p) GridTrimVertex ); - nextlower( gtlower = new(p) GridTrimVertex ); - - clearStack(); - openMesh(); - push(gtupper); - - nextupper( gtupper = new(p) GridTrimVertex ); - nextlower( gtlower ); - - assert( gtupper->t && gtlower->t ); - - if( gtupper->t->param[0] < gtlower->t->param[0] ) { - push(gtupper); - lastedge = 1; - if( nextupper( gtupper=new(p) GridTrimVertex ) == 0 ) { - finishLower(gtlower); - return; - } - } else if( gtupper->t->param[0] > gtlower->t->param[0] ) { - push(gtlower); - lastedge = 0; - if( nextlower( gtlower=new(p) GridTrimVertex ) == 0 ) { - finishUpper(gtupper); - return; - } - } else { - if( lastedge == 0 ) { - push(gtupper); - lastedge = 1; - if( nextupper(gtupper=new(p) GridTrimVertex) == 0 ) { - finishLower(gtlower); - return; - } - } else { - push(gtlower); - lastedge = 0; - if( nextlower( gtlower=new(p) GridTrimVertex ) == 0 ) { - finishUpper(gtupper); - return; - } - } - } - - while ( 1 ) { - if( gtupper->t->param[0] < gtlower->t->param[0] ) { - push(gtupper); - addUpper(); - if( nextupper( gtupper=new(p) GridTrimVertex ) == 0 ) { - finishLower(gtlower); - return; - } - } else if( gtupper->t->param[0] > gtlower->t->param[0] ) { - push(gtlower); - addLower(); - if( nextlower( gtlower=new(p) GridTrimVertex ) == 0 ) { - finishUpper(gtupper); - return; - } - } else { - if( lastedge == 0 ) { - push(gtupper); - addUpper(); - if( nextupper( gtupper=new(p) GridTrimVertex ) == 0 ) { - finishLower(gtlower); - return; - } - } else { - push(gtlower); - addLower(); - if( nextlower( gtlower=new(p) GridTrimVertex ) == 0 ) { - finishUpper(gtupper); - return; - } - } - } - } -} - -inline int -Mesher::isCcw( int ilast ) -{ - REAL area = det3( vdata[ilast]->t, vdata[itop-1]->t, vdata[itop-2]->t ); - return (area < ZERO) ? 0 : 1; -} - -inline int -Mesher::isCw( int ilast ) -{ - REAL area = det3( vdata[ilast]->t, vdata[itop-1]->t, vdata[itop-2]->t ); - return (area > -ZERO) ? 0 : 1; -} - -inline int -Mesher::equal( int x, int y ) -{ - return( last[0] == vdata[x] && last[1] == vdata[y] ); -} - -inline void -Mesher::copy( int x, int y ) -{ - last[0] = vdata[x]; last[1] = vdata[y]; -} - -inline void -Mesher::move( int x, int y ) -{ - vdata[x] = vdata[y]; -} - -inline void -Mesher::output( int x ) -{ - backend.tmeshvert( vdata[x] ); -} - -/*--------------------------------------------------------------------------- - * addedge - addedge an edge to the triangulation - * - * This code has been re-written to generate large triangle meshes - * from a monotone polygon. Although smaller triangle meshes - * could be generated faster and with less code, larger meshes - * actually give better SYSTEM performance. This is because - * vertices are processed in the backend slower than they are - * generated by this code and any decrease in the number of vertices - * results in a decrease in the time spent in the backend. - *--------------------------------------------------------------------------- - */ - -void -Mesher::addLast( ) -{ - register int ilast = itop; - - if( lastedge == 0 ) { - if( equal( 0, 1 ) ) { - output( ilast ); - swapMesh(); - for( register int i = 2; i < ilast; i++ ) { - swapMesh(); - output( i ); - } - copy( ilast, ilast-1 ); - } else if( equal( ilast-2, ilast-1) ) { - swapMesh(); - output( ilast ); - for( register int i = ilast-3; i >= 0; i-- ) { - output( i ); - swapMesh(); - } - copy( 0, ilast ); - } else { - closeMesh(); openMesh(); - output( ilast ); - output( 0 ); - for( register int i = 1; i < ilast; i++ ) { - swapMesh(); - output( i ); - } - copy( ilast, ilast-1 ); - } - } else { - if( equal( 1, 0) ) { - swapMesh(); - output( ilast ); - for( register int i = 2; i < ilast; i++ ) { - output( i ); - swapMesh(); - } - copy( ilast-1, ilast ); - } else if( equal( ilast-1, ilast-2) ) { - output( ilast ); - swapMesh(); - for( register int i = ilast-3; i >= 0; i-- ) { - swapMesh(); - output( i ); - } - copy( ilast, 0 ); - } else { - closeMesh(); openMesh(); - output( 0 ); - output( ilast ); - for( register int i = 1; i < ilast; i++ ) { - output( i ); - swapMesh(); - } - copy( ilast-1, ilast ); - } - } - closeMesh(); - //for( register long k=0; k<=ilast; k++ ) pop( k ); -} - -void -Mesher::addUpper( ) -{ - register int ilast = itop; - - if( lastedge == 0 ) { - if( equal( 0, 1 ) ) { - output( ilast ); - swapMesh(); - for( register int i = 2; i < ilast; i++ ) { - swapMesh(); - output( i ); - } - copy( ilast, ilast-1 ); - } else if( equal( ilast-2, ilast-1) ) { - swapMesh(); - output( ilast ); - for( register int i = ilast-3; i >= 0; i-- ) { - output( i ); - swapMesh(); - } - copy( 0, ilast ); - } else { - closeMesh(); openMesh(); - output( ilast ); - output( 0 ); - for( register int i = 1; i < ilast; i++ ) { - swapMesh(); - output( i ); - } - copy( ilast, ilast-1 ); - } - lastedge = 1; - //for( register long k=0; k 1) && isCcw( ilast ) ); - - if( equal( ilast-1, ilast-2 ) ) { - output( ilast ); - swapMesh(); - for( register int i=ilast-3; i>=itop-1; i-- ) { - swapMesh(); - output( i ); - } - copy( ilast, itop-1 ); - } else if( equal( itop, itop-1 ) ) { - swapMesh(); - output( ilast ); - for( register int i = itop+1; i < ilast; i++ ) { - output( i ); - swapMesh(); - } - copy( ilast-1, ilast ); - } else { - closeMesh(); openMesh(); - output( ilast ); - output( ilast-1 ); - for( register int i=ilast-2; i>=itop-1; i-- ) { - swapMesh(); - output( i ); - } - copy( ilast, itop-1 ); - } - //for( register int k=itop; k= 0; i-- ) { - swapMesh(); - output( i ); - } - copy( ilast, 0 ); - } else { - closeMesh(); openMesh(); - output( 0 ); - output( ilast ); - for( register int i = 1; i < ilast; i++ ) { - output( i ); - swapMesh(); - } - copy( ilast-1, ilast ); - } - - lastedge = 0; - //for( register long k=0; k 1) && isCw( ilast ) ); - - if( equal( ilast-2, ilast-1) ) { - swapMesh(); - output( ilast ); - for( register int i=ilast-3; i>=itop-1; i--) { - output( i ); - swapMesh( ); - } - copy( itop-1, ilast ); - } else if( equal( itop-1, itop) ) { - output( ilast ); - swapMesh(); - for( register int i=itop+1; i=itop-1; i-- ) { - output( i ); - swapMesh( ); - } - copy( itop-1, ilast ); - } - //for( register int k=itop; kbgntfan(); - - /* - trimVert.param[0]=v[0]; - trimVert.param[1]=v[1]; - backend->tmeshvert(&trimVert); - */ - backend->tmeshvert(v[0], v[1]); - - if(isIncreasing) { - for(i=0; itmeshvert(&trimVert); - */ - backend->tmeshvert(queue[i][0], queue[i][1]); - } - } - else { - for(i=index_queue-1; i>=0; i--) - { - /* - trimVert.param[0]=queue[i][0]; - trimVert.param[1]=queue[i][1]; - backend->tmeshvert(&trimVert); - */ - backend->tmeshvert(queue[i][0], queue[i][1]); - } - } - backend->endtfan(); -} - -void reflexChain::processNewVertex(Real v[2], Backend* backend) -{ - Int i,j,k; - Int isReflex; - /* - TrimVertex trimVert; - */ - - /*if there are at most one vertex in the queue, then simply insert - */ - if(index_queue <=1){ - insert(v); - return; - } - - /*there are at least two vertices in the queue*/ - j=index_queue-1; - - for(i=j; i>=1; i--) { - if(isIncreasing) { - isReflex = (area(queue[i-1], queue[i], v) <= 0.0); - } - else /*decreasing*/{ - isReflex = (area(v, queue[i], queue[i-1]) <= 0.0); - } - if(isReflex) { - break; - } - } - - /* - *if ibgntfan(); - /* - trimVert.param[0]=v[0]; - trimVert.param[1]=v[1]; - backend->tmeshvert(& trimVert); - */ - backend->tmeshvert(v[0], v[1]); - - if(isIncreasing) { - for(k=i; k<=j; k++) - { - /* - trimVert.param[0]=queue[k][0]; - trimVert.param[1]=queue[k][1]; - backend->tmeshvert(& trimVert); - */ - backend->tmeshvert(queue[k][0], queue[k][1]); - } - } - else { - for(k=j; k>=i; k--) - { - /* - trimVert.param[0]=queue[k][0]; - trimVert.param[1]=queue[k][1]; - backend->tmeshvert(& trimVert); - */ - backend->tmeshvert(queue[k][0], queue[k][1]); - } - } - - backend->endtfan(); - } - - /*delete vertices i+1--j from the queue*/ - index_queue = i+1; - /*finally insert v at the end of the queue*/ - insert(v); - -} - - -void monoTriangulationRec(Real* topVertex, Real* botVertex, - vertexArray* inc_chain, Int inc_current, - vertexArray* dec_chain, Int dec_current, - Backend* backend) -{ - assert( inc_chain != NULL && dec_chain != NULL); - assert( ! (inc_current>=inc_chain->getNumElements() && - dec_current>=dec_chain->getNumElements())); - Int inc_nVertices; - Int dec_nVertices; - Real** inc_array ; - Real** dec_array ; - Int i; - assert( ! ( (inc_chain==NULL) && (dec_chain==NULL))); - - if(inc_current>=inc_chain->getNumElements()) /*no more vertices on inc_chain*/ - { - - dec_array = dec_chain->getArray(); - dec_nVertices = dec_chain->getNumElements(); - reflexChain rChain(20,0); - /*put the top vertex into the reflex chain*/ - rChain.processNewVertex(topVertex, backend); - /*process all the vertices on the dec_chain*/ - for(i=dec_current; i= dec_chain->getNumElements()) /*no more vertices on dec_chain*/ - { - inc_array = inc_chain->getArray(); - inc_nVertices= inc_chain->getNumElements(); - reflexChain rChain(20,1); - /*put the top vertex into the reflex chain*/ - rChain.processNewVertex(topVertex, backend); - /*process all the vertices on the inc_chain*/ - for(i=inc_current; i getArray(); - dec_array = dec_chain -> getArray(); - inc_nVertices= inc_chain->getNumElements(); - dec_nVertices= dec_chain->getNumElements(); - /*if top of inc_chain is 'lower' than top of dec_chain, process all the - *vertices on the dec_chain which are higher than top of inc_chain - */ - if(compV2InY(inc_array[inc_current], dec_array[dec_current]) <= 0) - { - - reflexChain rChain(20, 0); - rChain.processNewVertex(topVertex, backend); - for(i=dec_current; i 0*/ - { - - reflexChain rChain(20, 1); - rChain.processNewVertex(topVertex, backend); - for(i=inc_current; i0) - rChain.processNewVertex(inc_array[i], backend); - else - break; - } - rChain.outputFan(dec_array[dec_current], backend); - monoTriangulationRec(inc_array[i-1], botVertex, - inc_chain, i, - dec_chain, dec_current, - backend); - } - }/*end case neither is empty*/ -} - - -void monoTriangulationFunBackend(Arc_ptr loop, Int (*compFun)(Real*, Real*), Backend* backend) -{ - Int i; - /*find the top vertex, bottom vertex, inccreasing chain, and decreasing chain, - *then call monoTriangulationRec - */ - Arc_ptr tempV; - Arc_ptr topV; - Arc_ptr botV; - topV = botV = loop; - for(tempV = loop->next; tempV != loop; tempV = tempV->next) - { - if(compFun(topV->tail(), tempV->tail())<0) { - topV = tempV; - } - if(compFun(botV->tail(), tempV->tail())>0) { - botV = tempV; - } - } - - /*creat increase and decrease chains*/ - vertexArray inc_chain(20); /*this is a dynamic array*/ - for(i=1; i<=topV->pwlArc->npts-2; i++) { /*the first vertex is the top vertex which doesn't belong to inc_chain*/ - inc_chain.appendVertex(topV->pwlArc->pts[i].param); - } - for(tempV = topV->next; tempV != botV; tempV = tempV->next) - { - for(i=0; i<=tempV->pwlArc->npts-2; i++){ - inc_chain.appendVertex(tempV->pwlArc->pts[i].param); - } - } - - vertexArray dec_chain(20); - for(tempV = topV->prev; tempV != botV; tempV = tempV->prev) - { - for(i=tempV->pwlArc->npts-2; i>=0; i--){ - dec_chain.appendVertex(tempV->pwlArc->pts[i].param); - } - } - for(i=botV->pwlArc->npts-2; i>=1; i--){ - dec_chain.appendVertex(tempV->pwlArc->pts[i].param); - } - - monoTriangulationRecFunBackend(topV->tail(), botV->tail(), &inc_chain, 0, &dec_chain, 0, compFun, backend); - -} - -/*if compFun == compV2InY, top to bottom: V-monotone - *if compFun == compV2InX, right to left: U-monotone - */ -void monoTriangulationRecFunBackend(Real* topVertex, Real* botVertex, - vertexArray* inc_chain, Int inc_current, - vertexArray* dec_chain, Int dec_current, - Int (*compFun)(Real*, Real*), - Backend* backend) -{ - assert( inc_chain != NULL && dec_chain != NULL); - assert( ! (inc_current>=inc_chain->getNumElements() && - dec_current>=dec_chain->getNumElements())); - Int inc_nVertices; - Int dec_nVertices; - Real** inc_array ; - Real** dec_array ; - Int i; - assert( ! ( (inc_chain==NULL) && (dec_chain==NULL))); - - if(inc_current>=inc_chain->getNumElements()) /*no more vertices on inc_chain*/ - { - - dec_array = dec_chain->getArray(); - dec_nVertices = dec_chain->getNumElements(); - reflexChain rChain(20,0); - /*put the top vertex into the reflex chain*/ - rChain.processNewVertex(topVertex, backend); - /*process all the vertices on the dec_chain*/ - for(i=dec_current; i= dec_chain->getNumElements()) /*no more vertices on dec_chain*/ - { - inc_array = inc_chain->getArray(); - inc_nVertices= inc_chain->getNumElements(); - reflexChain rChain(20,1); - /*put the top vertex into the reflex chain*/ - rChain.processNewVertex(topVertex, backend); - /*process all the vertices on the inc_chain*/ - for(i=inc_current; i getArray(); - dec_array = dec_chain -> getArray(); - inc_nVertices= inc_chain->getNumElements(); - dec_nVertices= dec_chain->getNumElements(); - /*if top of inc_chain is 'lower' than top of dec_chain, process all the - *vertices on the dec_chain which are higher than top of inc_chain - */ - if(compFun(inc_array[inc_current], dec_array[dec_current]) <= 0) - { - - reflexChain rChain(20, 0); - rChain.processNewVertex(topVertex, backend); - for(i=dec_current; i 0*/ - { - - reflexChain rChain(20, 1); - rChain.processNewVertex(topVertex, backend); - for(i=inc_current; i0) - rChain.processNewVertex(inc_array[i], backend); - else - break; - } - rChain.outputFan(dec_array[dec_current], backend); - monoTriangulationRecFunBackend(inc_array[i-1], botVertex, - inc_chain, i, - dec_chain, dec_current, - compFun, - backend); - } - }/*end case neither is empty*/ -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/monotonizer.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/monotonizer.cc deleted file mode 100644 index ff7700770..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/monotonizer.cc +++ /dev/null @@ -1,262 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * monotonizer.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/monotonizer.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "arc.h" -#include "arctess.h" -#include "bezierarc.h" -#include "bin.h" -#include "mapdesc.h" -#include "nurbsconsts.h" -#include "subdivider.h" - -/*----------------------------------------------------------------------------- - * Subdivider::decompose - break all curves into monotone arcs - *----------------------------------------------------------------------------- - */ -int -Subdivider::decompose( Bin& bin, REAL geo_stepsize ) -{ - Arc_ptr jarc; - for( jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - if( ! jarc->isTessellated() ) { - /* points have not been transformed, therefore they may be either - homogeneous or inhomogeneous */ - tessellate( jarc, geo_stepsize ); - if( jarc->isDisconnected() || jarc->next->isDisconnected() ) - return 1; - } - } - - for( jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - monotonize( jarc, bin ); - } - -#ifndef NDEBUG - for( jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - assert( isMonotone( jarc ) != 0 ); - } -#endif - - return 0; -} - -void -Subdivider::tessellate( Arc_ptr jarc, REAL geo_stepsize ) -{ - BezierArc *b = jarc->bezierArc; - Mapdesc *mapdesc = b->mapdesc; - - if( mapdesc->isRational() ) { - REAL max = mapdesc->calcVelocityRational( b->cpts, b->stride, b->order ); - REAL arc_stepsize = (max > 1.0) ? (1.0/max) : 1.0; - if( jarc->bezierArc->order != 2 ) - arctessellator.tessellateNonlinear( jarc, geo_stepsize, arc_stepsize, 1 ); - else { - arctessellator.tessellateLinear( jarc, geo_stepsize, arc_stepsize, 1 ); - } - } else { - REAL max = mapdesc->calcVelocityNonrational( b->cpts, b->stride, b->order ); - REAL arc_stepsize = (max > 1.0) ? (1.0/max) : 1.0; - if( jarc->bezierArc->order != 2 ) - arctessellator.tessellateNonlinear( jarc, geo_stepsize, arc_stepsize, 0 ); - else { - arctessellator.tessellateLinear( jarc, geo_stepsize, arc_stepsize, 0 ); - } - } -} - -/*------------------------------------------------------------------------- - * Subdivider::monotonize - break up a jordan arc into s,t-monotone - * components. This code will remove degenerate segments, including - * arcs of only a single point. - *------------------------------------------------------------------------- - */ -void -Subdivider::monotonize( Arc_ptr jarc, Bin& bin ) -{ - TrimVertex *firstvert = jarc->pwlArc->pts; - TrimVertex *lastvert = firstvert + (jarc->pwlArc->npts - 1); - long uid = jarc->nuid; - arc_side side = jarc->getside(); - dir sdir = none; - dir tdir = none; - int degenerate = 1; - - int nudegenerate; - int change; - - TrimVertex *vert; - for( vert = firstvert; vert != lastvert; vert++ ) { - - nudegenerate = 1; - change = 0; - - /* check change relative to s axis, clear degenerate bit if needed */ - REAL sdiff = vert[1].param[0] - vert[0].param[0]; - if( sdiff == 0 ) { - if( sdir != same ) { - sdir = same; - change = 1; - } - } else if( sdiff < 0.0 ) { - if( sdir != down ) { - sdir = down; - change = 1; - } - nudegenerate = 0; - } else { - if( sdir != up ) { - sdir = up; - change = 1; - } - nudegenerate = 0; - } - - /* check change relative to t axis, clear degenerate bit if needed */ - REAL tdiff = vert[1].param[1] - vert[0].param[1]; - if( tdiff == 0 ) { - if( tdir != same ) { - tdir = same; - change = 1; - } - } else if( tdiff < 0.0 ) { - if( tdir != down ) { - tdir = down; - change = 1; - } - nudegenerate = 0; - } else { - if( tdir != up ) { - tdir = up; - change = 1; - } - nudegenerate = 0; - } - - if( change ) { - if( ! degenerate ) { - /* make last segment into separate pwl curve */ - jarc->pwlArc->npts = vert - firstvert + 1; - jarc = (new(arcpool) Arc( side, uid ))->append( jarc ); - jarc->pwlArc = new(pwlarcpool) PwlArc(); - bin.addarc( jarc ); - } - firstvert = jarc->pwlArc->pts = vert; - degenerate = nudegenerate; - } - } - jarc->pwlArc->npts = vert - firstvert + 1; - - if( degenerate ) { - /* remove jarc from circularly linked list */ - jarc->prev->next = jarc->next; - jarc->next->prev = jarc->prev; - - assert( jarc->prev->check( ) != 0 ); - assert( jarc->next->check( ) != 0 ); - - /* remove jarc from bin */ - bin.remove_this_arc( jarc ); - - jarc->pwlArc->deleteMe( pwlarcpool ); jarc->pwlArc = 0; - jarc->deleteMe( arcpool ); - } -} - -/*------------------------------------------------------------------------- - * Subdivider::isMonotone - return true if arc is monotone AND non-degenerate - *------------------------------------------------------------------------- - */ -int -Subdivider::isMonotone( Arc_ptr jarc ) -{ - TrimVertex *firstvert = jarc->pwlArc->pts; - TrimVertex *lastvert = firstvert + (jarc->pwlArc->npts - 1); - - if( firstvert == lastvert ) return 1; - - TrimVertex *vert = firstvert; - enum dir sdir; - enum dir tdir; - - REAL diff = vert[1].param[0] - vert[0].param[0]; - if( diff == 0.0 ) - sdir = same; - else if( diff < 0.0 ) - sdir = down; - else - sdir = up; - - diff = vert[1].param[1] - vert[0].param[1]; - if( diff == 0.0 ) - tdir = same; - else if( diff < 0.0 ) - tdir = down; - else - tdir = up; - - if( (sdir == same) && (tdir == same) ) return 0; - - for( ++vert ; vert != lastvert; vert++ ) { - diff = vert[1].param[0] - vert[0].param[0]; - if( diff == 0.0 ) { - if( sdir != same ) return 0; - } else if( diff < 0.0 ) { - if( sdir != down ) return 0; - } else { - if( sdir != up ) return 0; - } - - diff = vert[1].param[1] - vert[0].param[1]; - if( diff == 0.0 ) { - if( tdir != same ) return 0; - } else if( diff < 0.0 ) { - if( tdir != down ) return 0; - } else { - if( tdir != up ) return 0; - } - } - return 1; -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/monotonizer.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/monotonizer.h deleted file mode 100644 index 62d4e7bc3..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/monotonizer.h +++ /dev/null @@ -1,47 +0,0 @@ -/************************************************************************** - * * - * Copyright (C) 1999, Silicon Graphics, Inc. * - * * - * These coded instructions, statements, and computer programs contain * - * unpublished proprietary information of Silicon Graphics, Inc., and * - * are protected by Federal copyright law. They may not be disclosed * - * to third parties or copied or duplicated in any form, in whole or * - * in part, without the prior written consent of Silicon Graphics, Inc. * - * * - **************************************************************************/ - -/* - * monotonizer.h - * - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/monotonizer.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glumonotonizer_h_ -#define __glumonotonizer_h_ - -#include "mysetjmp.h" -#include "types.h" - -class Arc; -class ArcTessellator; -class Pool; -class Bin; -class PwlArcPool; -class Mapdesc; - -class Monotonizer { - ArcTessellator& arctessellator; - Pool& arcpool; - Pool& pwlarcpool; - jmp_buf& nurbsJmpBuf; - - enum dir { down, same, up, none }; - void tessellate( Arc *, REAL ); - void monotonize( Arc *, Bin & ); - int isMonotone( Arc * ); -public: - Monotonizer( ArcTessellator& at, Pool& ap, Pool& p, jmp_buf& j ) - : arctessellator(at), arcpool(ap), pwlarcpool(p), nurbsJmpBuf(j) {} - int decompose( Bin &, REAL ); -}; -#endif /* __glumonotonizer_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/myassert.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/myassert.h deleted file mode 100644 index b89702869..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/myassert.h +++ /dev/null @@ -1,57 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * myassert.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/myassert.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glumyassert_h_ -#define __glumyassert_h_ - -#ifdef STANDALONE -#define assert(EX) ((void)0) -#endif - -#ifdef LIBRARYBUILD -#include -#endif - -#ifdef GLBUILD -#define assert(EX) ((void)0) -#endif - -#endif /* __glumyassert_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mycode.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mycode.cc deleted file mode 100644 index 122706238..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mycode.cc +++ /dev/null @@ -1,69 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mycode.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ -*/ - -#include "mymath.h" - -#ifdef NEEDCEILF - -float ceilf( float x ) -{ - if( x < 0 ) { - float nx = -x; - int ix = (int) nx; - return (float) -ix; - } else { - int ix = (int) x; - if( x == (float) ix ) return x; - return (float) (ix+1); - } -} - -float floorf( float x ) -{ - if( x < 0 ) { - float nx = -x; - int ix = (int) nx; - if( nx == (float) ix ) return x; - return (float) -(ix+1); - } else { - int ix = (int) x; - return (float) ix; - } -} -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mymath.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mymath.h deleted file mode 100644 index 80ce2cd37..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mymath.h +++ /dev/null @@ -1,77 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * mymath.h - * - * Date Revision - * Header: //depot/main/gfx/lib/glu/libnurbs/internals/mymath.h#4 - */ - - - -/* $XFree86: xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mymath.h,v 1.2 2001/02/18 20:01:01 dawes Exp $ */ - -#ifndef __glumymath_h_ -#define __glumymath_h_ - -#ifdef GLBUILD -#define sqrtf gl_fsqrt -#endif - -#ifdef __UNIXOS2__ -#define sqrtf sqrt -#endif - -#if GLBUILD | STANDALONE -#define M_SQRT2 1.41421356237309504880 -#define ceilf myceilf -#define floorf myfloorf -#define sqrtf sqrt -extern "C" double sqrt(double); -extern "C" float ceilf(float); -extern "C" float floorf(float); -#ifndef NEEDCEILF -#define NEEDCEILF -#endif -#elif defined(NEEDCEILF) -extern "C" float ceilf(float); -extern "C" float floorf(float); -#endif - -#ifdef LIBRARYBUILD -#include -#endif - -#endif /* __glumymath_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mysetjmp.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mysetjmp.h deleted file mode 100644 index ef8e62b35..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mysetjmp.h +++ /dev/null @@ -1,122 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ -/* $XFree86: xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mysetjmp.h,v 1.3tsi Exp $ */ - -/* - * mysetjmp.h - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mysetjmp.h,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ - -#ifndef __glumysetjmp_h_ -#define __glumysetjmp_h_ - -#ifdef STANDALONE -struct JumpBuffer; -extern "C" JumpBuffer *newJumpbuffer( void ); -extern "C" void deleteJumpbuffer(JumpBuffer *); -extern "C" void mylongjmp( JumpBuffer *, int ); -extern "C" int mysetjmp( JumpBuffer * ); -#endif - -#ifdef GLBUILD -#define setjmp gl_setjmp -#define longjmp gl_longjmp -#endif - -#if defined(LIBRARYBUILD) || defined(GLBUILD) -#include -#include - -/* Fix up for libc5 Linux systems */ -#ifndef LIBC5BUILD -#if defined(setjmp) && defined(__GNU_LIBRARY__) && \ - (!defined(__GLIBC__) || (__GLIBC__ < 2)) -#define LIBC5BUILD 1 -#else -#if !LIBC5BUILD -#undef LIBC5BUILD -#endif -#endif -#endif - -#ifndef LIBC5BUILD -struct JumpBuffer { - jmp_buf buf; -}; -#else -struct JumpBuffer { - union { - jmp_buf jbuf; - sigjmp_buf sbuf; - } buf; -}; -#endif - -inline JumpBuffer * -newJumpbuffer( void ) -{ - return (JumpBuffer *) malloc( sizeof( JumpBuffer ) ); -} - -inline void -deleteJumpbuffer(JumpBuffer *jb) -{ - free( (void *) jb); -} - -inline void -mylongjmp( JumpBuffer *j, int code ) -{ -#ifndef LIBC5BUILD - longjmp( j->buf, code ); -#else - longjmp( j->buf.jbuf, code); -#endif -} - -inline int -mysetjmp( JumpBuffer *j ) -{ -#ifndef LIBC5BUILD - return setjmp( j->buf ); -#else - __sigjmp_save( j->buf.sbuf, 1); - return __setjmp( j->buf.sbuf->__jmpbuf ); -#endif -} -#endif - -#endif /* __glumysetjmp_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mystring.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mystring.h deleted file mode 100644 index 8f0fe480d..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mystring.h +++ /dev/null @@ -1,62 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * mystring.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mystring.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glumystring_h_ -#define __glumystring_h_ - -#ifdef STANDALONE -typedef unsigned int size_t; -extern "C" void * memcpy(void *, const void *, size_t); -extern "C" void * memset(void *, int, size_t); -#endif - -#ifdef GLBUILD -#define memcpy(a,b,c) bcopy(b,a,c) -#define memset(a,b,c) bzero(a,c) -extern "C" void bcopy(const void *, void *, int); -extern "C" void bzero(void *, int); -#endif - -#ifdef LIBRARYBUILD -#include -#endif - -#endif /* __glumystring_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbsconsts.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbsconsts.h deleted file mode 100644 index dc20a46e5..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbsconsts.h +++ /dev/null @@ -1,126 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * nurbsconsts.h - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbsconsts.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#ifndef __glunurbsconsts_h_ -#define __glunurbsconsts_h_ - -/* NURBS Properties - one set per map, - each takes a single INREAL arg */ -#define N_SAMPLING_TOLERANCE 1 -#define N_S_RATE 6 -#define N_T_RATE 7 -#define N_CLAMPFACTOR 13 -#define N_NOCLAMPING 0.0 -#define N_MINSAVINGS 14 -#define N_NOSAVINGSSUBDIVISION 0.0 - -/* NURBS Properties - one set per map, - each takes an enumerated value */ -#define N_CULLING 2 -#define N_NOCULLING 0.0 -#define N_CULLINGON 1.0 -#define N_SAMPLINGMETHOD 10 -#define N_NOSAMPLING 0.0 -#define N_FIXEDRATE 3.0 -#define N_DOMAINDISTANCE 2.0 -#define N_PARAMETRICDISTANCE 5.0 -#define N_PATHLENGTH 6.0 -#define N_SURFACEAREA 7.0 -#define N_OBJECTSPACE_PARA 8.0 -#define N_OBJECTSPACE_PATH 9.0 -#define N_BBOX_SUBDIVIDING 17 -#define N_NOBBOXSUBDIVISION 0.0 -#define N_BBOXTIGHT 1.0 -#define N_BBOXROUND 2.0 - -/* NURBS Rendering Properties - one set per renderer - each takes an enumerated value */ -#define N_DISPLAY 3 -#define N_FILL 1.0 -#define N_OUTLINE_POLY 2.0 -#define N_OUTLINE_TRI 3.0 -#define N_OUTLINE_QUAD 4.0 -#define N_OUTLINE_PATCH 5.0 -#define N_OUTLINE_PARAM 6.0 -#define N_OUTLINE_PARAM_S 7.0 -#define N_OUTLINE_PARAM_ST 8.0 -#define N_OUTLINE_SUBDIV 9.0 -#define N_OUTLINE_SUBDIV_S 10.0 -#define N_OUTLINE_SUBDIV_ST 11.0 -#define N_ISOLINE_S 12.0 -#define N_ERRORCHECKING 4 -#define N_NOMSG 0.0 -#define N_MSG 1.0 - -/* GL 4.0 propeties not defined above */ -#ifndef N_PIXEL_TOLERANCE -#define N_PIXEL_TOLERANCE N_SAMPLING_TOLERANCE -#define N_ERROR_TOLERANCE 20 -#define N_SUBDIVISIONS 5 -#define N_TILES 8 -#define N_TMP1 9 -#define N_TMP2 N_SAMPLINGMETHOD -#define N_TMP3 11 -#define N_TMP4 12 -#define N_TMP5 N_CLAMPFACTOR -#define N_TMP6 N_MINSAVINGS -#define N_S_STEPS N_S_RATE -#define N_T_STEPS N_T_RATE -#endif - -/* NURBS Rendering Properties - one set per map, - each takes an INREAL matrix argument */ -#define N_CULLINGMATRIX 1 -#define N_SAMPLINGMATRIX 2 -#define N_BBOXMATRIX 3 - - -/* NURBS Rendering Properties - one set per map, - each takes an INREAL vector argument */ -#define N_BBOXSIZE 4 - -/* type argument for trimming curves */ -#ifndef N_P2D -#define N_P2D 0x8 -#define N_P2DR 0xd -#endif - -#endif /* __glunurbsconsts_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbsinterfac.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbsinterfac.cc deleted file mode 100644 index 7ea82b549..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbsinterfac.cc +++ /dev/null @@ -1,539 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * nurbsinterfac.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbsinterfac.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "mystdio.h" -#include "nurbsconsts.h" -#include "nurbstess.h" -#include "bufpool.h" -#include "quilt.h" -#include "displaylist.h" -#include "knotvector.h" -#include "mapdesc.h" - -#define THREAD( work, arg, cleanup ) \ - if( dl ) {\ - arg->save = 1;\ - dl->append( (PFVS)&NurbsTessellator::work, (void *) arg, (PFVS)&NurbsTessellator::cleanup );\ - } else {\ - arg->save = 0;\ - work( arg );\ - } - -#define THREAD2( work ) \ - if( dl ) {\ - dl->append( (PFVS)&NurbsTessellator::work, 0, 0 );\ - } else {\ - work( );\ - } - -NurbsTessellator::NurbsTessellator( BasicCurveEvaluator &c, BasicSurfaceEvaluator& e) - : subdivider( renderhints, backend ), - backend( c, e ), - maplist( backend ), - o_pwlcurvePool( sizeof( O_pwlcurve ), 32, "o_pwlcurvePool" ), - o_nurbscurvePool( sizeof( O_nurbscurve ), 32, "o_nurbscurvePool"), - o_curvePool( sizeof( O_curve ), 32, "o_curvePool" ), - o_trimPool( sizeof( O_trim ), 32, "o_trimPool" ), - o_surfacePool( sizeof( O_surface ), 1, "o_surfacePool" ), - o_nurbssurfacePool( sizeof( O_nurbssurface ), 4, "o_nurbssurfacePool" ), - propertyPool( sizeof( Property ), 32, "propertyPool" ), - quiltPool( sizeof( Quilt ), 32, "quiltPool" ) -{ - dl = 0; - inSurface = 0; - inCurve = 0; - inTrim = 0; - playBack = 0; - jumpbuffer = newJumpbuffer(); - subdivider.setJumpbuffer( jumpbuffer ); -} - -NurbsTessellator::~NurbsTessellator( void ) -{ - if( inTrim ) { - do_nurbserror( 12 ); - endtrim(); - } - - if( inSurface ) { - *nextNurbssurface = 0; - do_freeall(); - } - - if (jumpbuffer) { - deleteJumpbuffer(jumpbuffer); - jumpbuffer= 0; - } -} - -/*----------------------------------------------------------------------------- - * bgnsurface - allocate and initialize an o_surface structure - * - * Client: GL user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::bgnsurface( long nuid ) -{ - O_surface *o_surface = new(o_surfacePool) O_surface; - o_surface->nuid = nuid; - THREAD( do_bgnsurface, o_surface, do_freebgnsurface ); -} - -/*----------------------------------------------------------------------------- - * bgncurve - allocate an initialize an o_curve structure - * - * Client: GL user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::bgncurve( long nuid ) -{ - O_curve *o_curve = new(o_curvePool) O_curve; - o_curve->nuid = nuid; - THREAD( do_bgncurve, o_curve, do_freebgncurve ); -} -/*----------------------------------------------------------------------------- - * endcurve - - * - * Client: - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::endcurve( void ) -{ - THREAD2( do_endcurve ); -} - -/*----------------------------------------------------------------------------- - * endsurface - user level end of surface call - * - * Client: GL user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::endsurface( void ) -{ - THREAD2( do_endsurface ); -} - - -/*----------------------------------------------------------------------------- - * bgntrim - allocate and initialize a new trim loop structure (o_trim ) - * - * Client: GL user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::bgntrim( void ) -{ - O_trim *o_trim = new(o_trimPool) O_trim; - THREAD( do_bgntrim, o_trim, do_freebgntrim ); -} - -/*----------------------------------------------------------------------------- - * endtrim - - * - * Client: GL user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::endtrim( void ) -{ - THREAD2( do_endtrim ); -} - - -/*----------------------------------------------------------------------------- - * pwlcurve - - * - * count - number of points on curve - * array - array of points on curve - * byte_stride - distance between points in bytes - * type - valid data flag - * - * Client: Gl user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::pwlcurve( long count, INREAL array[], long byte_stride, long type ) -{ - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) { - do_nurbserror( 35 ); - isDataValid = 0; - return; - } - - if ( (type != N_P2D) && (type != N_P2DR) ) { - do_nurbserror( 22 ); - isDataValid = 0; - return; - } - if( count < 0 ) { - do_nurbserror( 33 ); - isDataValid = 0; - return; - } - if( byte_stride < 0 ) { - do_nurbserror( 34 ); - isDataValid = 0; - return; - } - -#ifdef NOTDEF - if( mapdesc->isRational() ) { - INREAL *p = array; - INREAL x = p[0]; INREAL y = p[1]; INREAL w = p[2]; - p = (INREAL *) (((char *) p) + byte_stride); - for( long i = 1; i != count; i++ ) { - if( p[0] == x && p[1] == y && p[2] == w ) break; - x = p[0]; y = p[1]; w = p[2]; - p = (INREAL *) (((char *) p) + byte_stride); - } - if( i != count ) { - do_nurbserror( 37 ); - dprintf( "point %d (%f,%f)\n", i, x, y ); - isDataValid = 0; - return; - } - } else { - INREAL *p = array; - INREAL x = p[0]; INREAL y = p[1]; - p = (INREAL *) (((char *) p) + byte_stride); - for( long i = 1; i != count; i++ ) { - if( p[0] == x && p[1] == y ) break; - x = p[0]; y = p[1]; - p = (INREAL *) (((char *) p) + byte_stride); - } - if( i != count ) { - do_nurbserror( 37 ); - dprintf( "point %d (%f,%f)\n", i, x, y ); - isDataValid = 0; - return; - } - } -#endif - - O_pwlcurve *o_pwlcurve = new(o_pwlcurvePool) O_pwlcurve( type, count, array, byte_stride, extTrimVertexPool.get((int)count) ); - THREAD( do_pwlcurve, o_pwlcurve, do_freepwlcurve ); -} - - -/*----------------------------------------------------------------------------- - * nurbscurve - - * - * Client: GL user - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::nurbscurve( - long nknots, /* number of p knots */ - INREAL knot[], /* nondecreasing knot values in p */ - long byte_stride, /* distance in bytes between control points */ - INREAL ctlarray[], /* pointer to first control point */ - long order, /* order of spline */ - long type ) /* description of range space */ -{ - - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) { - do_nurbserror( 35 ); - isDataValid = 0; - return; - } - - if( ctlarray == 0 ) { - do_nurbserror( 36 ); - isDataValid = 0; - return; - } - - if( byte_stride < 0 ) { - do_nurbserror( 34 ); - isDataValid = 0; - return; - } - - Knotvector knots; - - knots.init( nknots, byte_stride, order, knot ); - if( do_check_knots( &knots, "curve" ) ) return; - - O_nurbscurve *o_nurbscurve = new(o_nurbscurvePool) O_nurbscurve(type); - o_nurbscurve->bezier_curves = new(quiltPool) Quilt(mapdesc); - o_nurbscurve->bezier_curves->toBezier( knots,ctlarray, mapdesc->getNcoords() ); - - THREAD( do_nurbscurve, o_nurbscurve, do_freenurbscurve ); -} - - -/*----------------------------------------------------------------------------- - * nurbssurface - - * - * Client: User routine - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::nurbssurface( - long sknot_count, /* number of s knots */ - INREAL sknot[], /* nondecreasing knot values in s */ - long tknot_count, /* number of t knots */ - INREAL tknot[], /* nondecreasing knot values in t */ - long s_byte_stride, /* s step size in memory bytes */ - long t_byte_stride, /* t step size in memory bytes */ - INREAL ctlarray[], /* pointer to first control point */ - long sorder, /* order of the spline in s parameter */ - long torder, /* order of the spline in t parameter */ - long type) /* description of range space */ -{ - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) { - do_nurbserror( 35 ); - isDataValid = 0; - return; - } - - if( s_byte_stride < 0 ) { - do_nurbserror( 34 ); - isDataValid = 0; - return; - } - - if( t_byte_stride < 0 ) { - do_nurbserror( 34 ); - isDataValid = 0; - return; - } - - Knotvector sknotvector, tknotvector; - - sknotvector.init( sknot_count, s_byte_stride, sorder, sknot ); - if( do_check_knots( &sknotvector, "surface" ) ) return; - - tknotvector.init( tknot_count, t_byte_stride, torder, tknot ); - if( do_check_knots( &tknotvector, "surface" ) ) return; - - O_nurbssurface *o_nurbssurface = new(o_nurbssurfacePool) O_nurbssurface(type); - o_nurbssurface->bezier_patches = new(quiltPool) Quilt(mapdesc); - - o_nurbssurface->bezier_patches->toBezier( sknotvector, tknotvector, - ctlarray, mapdesc->getNcoords() ); - THREAD( do_nurbssurface, o_nurbssurface, do_freenurbssurface ); -} - - -/*----------------------------------------------------------------------------- - * setnurbsproperty - - * - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::setnurbsproperty( long tag, INREAL value ) -{ - if( ! renderhints.isProperty( tag ) ) { - do_nurbserror( 26 ); - } else { - Property *prop = new(propertyPool) Property( tag, value ); - THREAD( do_setnurbsproperty, prop, do_freenurbsproperty ); - } -} - -/*----------------------------------------------------------------------------- - * setnurbsproperty - - * - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::setnurbsproperty( long type, long tag, INREAL value ) -{ - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) { - do_nurbserror( 35 ); - return; - } - - if( ! mapdesc->isProperty( tag ) ) { - do_nurbserror( 26 ); - return; - } - - Property *prop = new(propertyPool) Property( type, tag, value ); - THREAD( do_setnurbsproperty2, prop, do_freenurbsproperty ); -} - - -/*----------------------------------------------------------------------------- - * getnurbsproperty - - * - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::getnurbsproperty( long tag, INREAL *value ) -{ - if( renderhints.isProperty( tag ) ) { - *value = renderhints.getProperty( tag ); - } else { - do_nurbserror( 26 ); - } -} - -/*----------------------------------------------------------------------------- - * getnurbsproperty - - * - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::getnurbsproperty( long type, long tag, INREAL *value ) -{ - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) - do_nurbserror( 35 ); - - if( mapdesc->isProperty( tag ) ) { - *value = mapdesc->getProperty( tag ); - } else { - do_nurbserror( 26 ); - } -} - -/*-------------------------------------------------------------------------- - * setnurbsproperty - accept a user supplied matrix as culling or sampling mat - *-------------------------------------------------------------------------- - */ - -void -NurbsTessellator::setnurbsproperty( long type, long purpose, INREAL *mat ) -{ - // XXX - cannot be put in display list - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) { - do_nurbserror( 35 ); - isDataValid = 0; - } else if( purpose == N_BBOXSIZE ) { - mapdesc->setBboxsize( mat ); - } else { -#ifndef NDEBUG - dprintf( "ERRORRORRORR!!!\n"); -#endif - } -} - -/*-------------------------------------------------------------------------- - * setnurbsproperty - accept a user supplied matrix as culling or sampling mat - *-------------------------------------------------------------------------- - */ - -void -NurbsTessellator::setnurbsproperty( long type, long purpose, INREAL *mat, - long rstride, long cstride ) -{ - // XXX - cannot be put in display list - Mapdesc *mapdesc = maplist.locate( type ); - - if( mapdesc == 0 ) { - do_nurbserror( 35 ); - isDataValid = 0; - } else if( purpose == N_CULLINGMATRIX ) { - mapdesc->setCmat( mat, rstride, cstride ); - } else if( purpose == N_SAMPLINGMATRIX ) { - mapdesc->setSmat( mat, rstride, cstride ); - } else if( purpose == N_BBOXMATRIX ) { - mapdesc->setBmat( mat, rstride, cstride ); - } else { -#ifndef NDEBUG - dprintf( "ERRORRORRORR!!!\n"); -#endif - } -} - -void -NurbsTessellator::redefineMaps( void ) -{ - maplist.initialize(); -} - -void -NurbsTessellator::defineMap( long type, long rational, long ncoords ) -{ - maplist.define( type, (int) rational, (int) ncoords ); -} - -void -NurbsTessellator::discardRecording( void *_dl ) -{ - delete (DisplayList *) _dl; -} - -void * -NurbsTessellator::beginRecording( void ) -{ - dl = new DisplayList( this ); - return (void *) dl; -} - -void -NurbsTessellator::endRecording( void ) -{ - dl->endList(); - dl = 0; -} - -void -NurbsTessellator::playRecording( void *_dl ) -{ - playBack = 1; - bgnrender(); - ((DisplayList *)_dl)->play(); - endrender(); - playBack = 0; -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbstess.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbstess.cc deleted file mode 100644 index 44e3c62e2..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbstess.cc +++ /dev/null @@ -1,693 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * nurbstess.c++ - * - * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbstess.cc,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mysetjmp.h" -#include "mystdio.h" -#include "nurbsconsts.h" -#include "nurbstess.h" -#include "bufpool.h" -#include "quilt.h" -#include "knotvector.h" -#include "mapdesc.h" -#include "maplist.h" - -void -NurbsTessellator::set_domain_distance_u_rate(REAL u_rate) -{ - subdivider.set_domain_distance_u_rate(u_rate); -} - -void -NurbsTessellator::set_domain_distance_v_rate(REAL v_rate) -{ - subdivider.set_domain_distance_v_rate(v_rate); -} - -void -NurbsTessellator::set_is_domain_distance_sampling(int flag) -{ - subdivider.set_is_domain_distance_sampling(flag); -} - -void -NurbsTessellator::resetObjects( void ) -{ - subdivider.clear(); -} - -void -NurbsTessellator::makeobj( int ) -{ -#ifndef NDEBUG - dprintf( "makeobj\n" ); -#endif -} - -void -NurbsTessellator::closeobj( void ) -{ -#ifndef NDEBUG - dprintf( "closeobj\n" ); -#endif -} - -void -NurbsTessellator::bgnrender( void ) -{ -#ifndef NDEBUG - dprintf( "bgnrender\n" ); -#endif -} - -void -NurbsTessellator::endrender( void ) -{ -#ifndef NDEBUG - dprintf( "endrender\n" ); -#endif -} - -/*----------------------------------------------------------------------------- - * do_freebgnsurface - free o_surface structure - * - * Client: do_freeall(), bgnsurface() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_freebgnsurface( O_surface *o_surface ) -{ - o_surface->deleteMe( o_surfacePool ); -} - - -/*----------------------------------------------------------------------------- - * do_bgnsurface - begin the display of a surface - * - * Client: bgnsurface() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_bgnsurface( O_surface *o_surface ) -{ - if( inSurface ) { - do_nurbserror( 27 ); - endsurface(); - } - inSurface = 1; - - if( ! playBack ) bgnrender(); - - isTrimModified = 0; - isSurfaceModified = 0; - isDataValid = 1; - numTrims = 0; - currentSurface = o_surface; - nextTrim = &( currentSurface->o_trim ); - nextNurbssurface = &( currentSurface->o_nurbssurface ); -} - -/*----------------------------------------------------------------------------- - * do_bgncurve - begin the display of a curve - * - * Client: bgncurve() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_bgncurve( O_curve *o_curve ) -{ - if ( inCurve ) { - do_nurbserror( 6 ); - endcurve(); - } - - inCurve = 1; - currentCurve = o_curve; - currentCurve->curvetype = ct_none; - - if( inTrim ) { - if( *nextCurve != o_curve ) { - isCurveModified = 1; - *nextCurve = o_curve; - } - } else { - if( ! playBack ) bgnrender(); - isDataValid = 1; - } - nextCurve = &(o_curve->next); - nextPwlcurve = &(o_curve->curve.o_pwlcurve); - nextNurbscurve = &(o_curve->curve.o_nurbscurve); -} - -/*----------------------------------------------------------------------------- - * do_endcurve - - * - * Client: endcurve() - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::do_endcurve( void ) -{ - if( ! inCurve ) { - do_nurbserror( 7 ); - return; - } - inCurve = 0; - - *nextCurve = 0; - if (currentCurve->curvetype == ct_nurbscurve) - *nextNurbscurve = 0; - else - *nextPwlcurve = 0; - - if ( ! inTrim ) { - if( ! isDataValid ) { - do_freecurveall( currentCurve ); - return; - } - - int errval; - errval = ::mysetjmp( jumpbuffer ); - if( errval == 0 ) { - if( currentCurve->curvetype == ct_nurbscurve ) { - subdivider.beginQuilts(); - for( O_nurbscurve *n = currentCurve->curve.o_nurbscurve; n != 0; n = n->next ) - subdivider.addQuilt( n->bezier_curves ); - subdivider.endQuilts(); - subdivider.drawCurves(); - if( ! playBack ) endrender(); - } else { - /* XXX */ - if( ! playBack ) endrender(); - /*do_draw_pwlcurve( currentCurve->curve.o_pwlcurve ) */; - do_nurbserror( 9 ); - } - } else { - if( ! playBack ) endrender(); - do_nurbserror( errval ); - } - do_freecurveall( currentCurve ); - resetObjects(); - } -} - -/*----------------------------------------------------------------------------- - * do_endsurface - mark end of surface, display surface, free immediate data - * - * Client: - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_endsurface( void ) -{ - if( inTrim ) { - do_nurbserror( 12 ); - endtrim(); - } - - if( ! inSurface ) { - do_nurbserror( 13 ); - return; - } - inSurface = 0; - - *nextNurbssurface = 0; - - if( ! isDataValid ) { - do_freeall( ); - return; - } - - if( *nextTrim != 0 ) { - isTrimModified = 1; - *nextTrim = 0; - } - - int errval; - - errval = ::mysetjmp( jumpbuffer ); - if( errval == 0 ) { - if( numTrims > 0 ) { - - subdivider.beginTrims(); - for( O_trim *trim = currentSurface->o_trim; trim; trim = trim->next ) { - subdivider.beginLoop(); - for( O_curve *curve = trim->o_curve; curve; curve = curve->next ) { - curve->used = 0; - assert( curve->curvetype != ct_none ); - if (curve->curvetype == ct_pwlcurve) { - O_pwlcurve *c = curve->curve.o_pwlcurve; - subdivider.addArc( c->npts, c->pts, curve->nuid ); - } else { - Quilt *quilt = curve->curve.o_nurbscurve->bezier_curves; - Quiltspec *qspec = quilt->qspec; - REAL *cpts = quilt->cpts + qspec->offset; - REAL *cptsend = cpts + (qspec->width * qspec->order * qspec->stride); - for( ; cpts != cptsend; cpts += qspec->order*qspec->stride ) - subdivider.addArc( cpts, quilt, curve->nuid ); - } - } - subdivider.endLoop(); - } - subdivider.endTrims(); - } - - subdivider.beginQuilts(); - for( O_nurbssurface *n = currentSurface->o_nurbssurface; n; n = n->next ) - subdivider.addQuilt( n->bezier_patches ); - subdivider.endQuilts(); - subdivider.drawSurfaces( currentSurface->nuid ); - if( ! playBack ) endrender(); - } else { - if( ! playBack ) endrender(); - do_nurbserror( errval ); - } - - do_freeall( ); - resetObjects(); -} - -/*----------------------------------------------------------------------------- - * do_freeall - free all data allocated in immediate mode - * - * Client: - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_freeall( void ) -{ - for( O_trim *o_trim = currentSurface->o_trim; o_trim; ) { - O_trim *next_o_trim = o_trim->next; - for( O_curve *curve = o_trim->o_curve; curve; ) { - O_curve *next_o_curve = curve->next; - do_freecurveall( curve ); - curve = next_o_curve; - } - if( o_trim->save == 0 ) do_freebgntrim( o_trim ); - o_trim = next_o_trim; - } - - O_nurbssurface *nurbss, *next_nurbss; - for( nurbss= currentSurface->o_nurbssurface; nurbss; nurbss = next_nurbss) { - next_nurbss = nurbss->next; - if( nurbss->save == 0 ) - do_freenurbssurface( nurbss ); - else - nurbss->used = 0; - } - - if( currentSurface->save == 0 ) do_freebgnsurface( currentSurface ); -} - -void -NurbsTessellator::do_freecurveall( O_curve *curve ) -{ - assert( curve->curvetype != ct_none ); - - if( curve->curvetype == ct_nurbscurve ) { - O_nurbscurve *ncurve, *next_ncurve; - for( ncurve=curve->curve.o_nurbscurve; ncurve; ncurve=next_ncurve ) { - next_ncurve = ncurve->next; - if( ncurve->save == 0 ) - do_freenurbscurve( ncurve ); - else - ncurve->used = 0; - } - } else { - O_pwlcurve *pcurve, *next_pcurve; - for( pcurve=curve->curve.o_pwlcurve; pcurve; pcurve=next_pcurve ) { - next_pcurve = pcurve->next; - if( pcurve->save == 0 ) - do_freepwlcurve( pcurve ); - else - pcurve->used = 0; - } - } - if( curve->save == 0 ) - do_freebgncurve( curve ); -} - - -/*----------------------------------------------------------------------------- - * do_freebgntrim - free the space allocated for a trim loop - * - * Client: - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_freebgntrim( O_trim *o_trim ) -{ - o_trim->deleteMe( o_trimPool ); -} - - -/*----------------------------------------------------------------------------- - * do_bgntrim - link in a trim loop to the current trimmed surface description - * - * Client: bgntrim() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_bgntrim( O_trim *o_trim ) -{ - - if( ! inSurface ) { - do_nurbserror( 15 ); - bgnsurface( 0 ); - inSurface = 2; - } - - if( inTrim ) { - do_nurbserror( 16 ); - endtrim(); - } - inTrim = 1; - - if( *nextTrim != o_trim ) { - isTrimModified = 1; - *nextTrim = o_trim; - } - - currentTrim = o_trim; - nextTrim = &(o_trim->next); - nextCurve = &(o_trim->o_curve); -} - - -/*----------------------------------------------------------------------------- - * do_endtrim - mark the end of the current trim loop - * - * Client: endtrim() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_endtrim( void ) -{ - if( ! inTrim ) { - do_nurbserror( 17 ); - return; - } - inTrim = 0; - - if( currentTrim->o_curve == 0 ) { - do_nurbserror( 18 ); - isDataValid = 0; - } - - numTrims++; - - if( *nextCurve != 0 ) { - isTrimModified = 1; - *nextCurve = 0; - } -} - -/*----------------------------------------------------------------------------- - * do_freepwlcurve - - * - * Client: - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_freepwlcurve( O_pwlcurve *o_pwlcurve ) -{ - o_pwlcurve->deleteMe( o_pwlcurvePool ); -} - -void -NurbsTessellator::do_freebgncurve( O_curve *o_curve ) -{ - o_curve->deleteMe( o_curvePool ); -} - -/*----------------------------------------------------------------------------- - * do_pwlcurve - link in pwl trim loop to the current surface description - * - * Client: pwlcurve() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_pwlcurve( O_pwlcurve *o_pwlcurve ) -{ - if( ! inTrim ) { - do_nurbserror( 19 ); - if( o_pwlcurve->save == 0 ) - do_freepwlcurve(o_pwlcurve ); - return; - } - - if( ! inCurve ) { - bgncurve( 0 ); - inCurve = 2; - } - - if( o_pwlcurve->used ) { - do_nurbserror( 20 ); - isDataValid = 0; - return; - } else - o_pwlcurve->used = 1; - - if( currentCurve->curvetype == ct_none ) { - currentCurve->curvetype = ct_pwlcurve; - } else if( currentCurve->curvetype != ct_pwlcurve ) { - do_nurbserror( 21 ); - isDataValid = 0; - return; - } - - if( *nextPwlcurve != o_pwlcurve ) { - isCurveModified = 1; - *nextPwlcurve = o_pwlcurve; - } - nextPwlcurve = &(o_pwlcurve->next); - - if( o_pwlcurve->owner != currentCurve ) { - isCurveModified = 1; - o_pwlcurve->owner = currentCurve; - } - - if( (inCurve == 2) ) - endcurve(); -} - - -/*----------------------------------------------------------------------------- - * do_freenurbscurve - - * - * Client: - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_freenurbscurve( O_nurbscurve *o_nurbscurve ) -{ - o_nurbscurve->bezier_curves->deleteMe( quiltPool ); - o_nurbscurve->deleteMe( o_nurbscurvePool ); -} - - -/*----------------------------------------------------------------------------- - * do_nurbscurve - - * - * Client: nurbscurve() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_nurbscurve( O_nurbscurve *o_nurbscurve ) -{ - if ( ! inCurve ) { - bgncurve( 0 ); - inCurve = 2; - } - - if( o_nurbscurve->used ) { - /* error - curve was already called in current surface */ - do_nurbserror( 23 ); - isDataValid = 0; - return; - } else - o_nurbscurve->used = 1; - - if( currentCurve->curvetype == ct_none ) { - currentCurve->curvetype = ct_nurbscurve; - } else if( currentCurve->curvetype != ct_nurbscurve ) { - do_nurbserror( 24 ); - isDataValid = 0; - return; - } - - if( *nextNurbscurve != o_nurbscurve ) { - isCurveModified = 1; - *nextNurbscurve = o_nurbscurve; - } - - nextNurbscurve = &(o_nurbscurve->next); - - if( o_nurbscurve->owner != currentCurve ) { - isCurveModified = 1; - o_nurbscurve->owner = currentCurve; - } - - if( o_nurbscurve->owner == 0 ) - isCurveModified = 1; - - if( inCurve == 2 ) - endcurve(); -} - - -/*----------------------------------------------------------------------------- - * do_freenurbssurface - - * - * Client: - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::do_freenurbssurface( O_nurbssurface *o_nurbssurface ) -{ - o_nurbssurface->bezier_patches->deleteMe( quiltPool ); - o_nurbssurface->deleteMe( o_nurbssurfacePool ); -} - -/*----------------------------------------------------------------------------- - * do_nurbssurface - - * - * Client: nurbssurface() - *----------------------------------------------------------------------------- - */ -void -NurbsTessellator::do_nurbssurface( O_nurbssurface *o_nurbssurface ) -{ - if( ! inSurface ) { - bgnsurface( 0 ); - inSurface = 2; - } - - if( o_nurbssurface->used ) { - /* error - surface was already called in current block */ - do_nurbserror( 25 ); - isDataValid = 0; - return; - } else - o_nurbssurface->used = 1; - - if( *nextNurbssurface != o_nurbssurface ) { - isSurfaceModified = 1; - *nextNurbssurface = o_nurbssurface; - } - - if( o_nurbssurface->owner != currentSurface ) { - isSurfaceModified = 1; - o_nurbssurface->owner = currentSurface; - } - nextNurbssurface = &(o_nurbssurface->next); - - if( inSurface == 2 ) - endsurface(); -} - - -/*----------------------------------------------------------------------------- - * do_freenurbsproperty - * - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::do_freenurbsproperty( Property *prop ) -{ - prop->deleteMe( propertyPool ); -} - - -/*----------------------------------------------------------------------------- - * do_setnurbsproperty - - * - *----------------------------------------------------------------------------- - */ - -void -NurbsTessellator::do_setnurbsproperty( Property *prop ) -{ - renderhints.setProperty( prop->tag, prop->value ); - if( prop->save == 0 ) - do_freenurbsproperty( prop ); -} - -void -NurbsTessellator::do_setnurbsproperty2( Property *prop ) -{ - Mapdesc *mapdesc = maplist.find( prop->type ); - - mapdesc->setProperty( prop->tag, prop->value ); - if( prop->save == 0 ) - do_freenurbsproperty( prop ); -} - -void -NurbsTessellator::errorHandler( int ) -{ -} - -void -NurbsTessellator::do_nurbserror( int msg ) -{ - errorHandler( msg ); -} - -int -NurbsTessellator::do_check_knots( Knotvector *knots, char *msg ) -{ - int status = knots->validate(); - if( status ) { - do_nurbserror( status ); - if( renderhints.errorchecking != N_NOMSG ) knots->show( msg ); - } - return status; -} - - - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbstess.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbstess.h deleted file mode 100644 index f0b220c1b..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbstess.h +++ /dev/null @@ -1,178 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * nurbstess.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/nurbstess.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __glunurbstess_h_ -#define __glunurbstess_h_ - -#include "mysetjmp.h" -#include "subdivider.h" -#include "renderhints.h" -#include "backend.h" -#include "maplist.h" -#include "reader.h" -#include "nurbsconsts.h" - -class Knotvector; -class Quilt; -class DisplayList; -class BasicCurveEvaluator; -class BasicSurfaceEvaluator; - -class NurbsTessellator { -public: - NurbsTessellator( BasicCurveEvaluator &c, - BasicSurfaceEvaluator &e ); - ~NurbsTessellator( void ); - - void getnurbsproperty( long, INREAL * ); - void getnurbsproperty( long, long, INREAL * ); - void setnurbsproperty( long, INREAL ); - void setnurbsproperty( long, long, INREAL ); - void setnurbsproperty( long, long, INREAL * ); - void setnurbsproperty( long, long, INREAL *, long, long ); - - // called before a tessellation begins/ends - virtual void bgnrender( void ); - virtual void endrender( void ); - - // called to make a display list of the output vertices - virtual void makeobj( int n ); - virtual void closeobj( void ); - - // called when a error occurs - virtual void errorHandler( int ); - - void bgnsurface( long ); - void endsurface( void ); - void bgntrim( void ); - void endtrim( void ); - void bgncurve( long ); - void endcurve( void ); - void pwlcurve( long, INREAL[], long, long ); - void nurbscurve( long, INREAL[], long, INREAL[], long, long ); - void nurbssurface( long, INREAL[], long, INREAL[], long, long, - INREAL[], long, long, long ); - - void defineMap( long, long, long ); - void redefineMaps( void ); - - // recording of input description - void discardRecording( void * ); - void * beginRecording( void ); - void endRecording( void ); - void playRecording( void * ); - - //for optimizing untrimmed nurbs in the case of domain distance sampling - void set_domain_distance_u_rate(REAL u_rate); - void set_domain_distance_v_rate(REAL v_rate); - void set_is_domain_distance_sampling(int flag); - - -protected: - Renderhints renderhints; - Maplist maplist; - Backend backend; - -private: - - void resetObjects( void ); - int do_check_knots( Knotvector *, char * ); - void do_nurbserror( int ); - void do_bgncurve( O_curve * ); - void do_endcurve( void ); - void do_freeall( void ); - void do_freecurveall( O_curve * ); - void do_freebgntrim( O_trim * ); - void do_freebgncurve( O_curve * ); - void do_freepwlcurve( O_pwlcurve * ); - void do_freenurbscurve( O_nurbscurve * ); - void do_freenurbssurface( O_nurbssurface * ); - void do_freebgnsurface( O_surface * ); - void do_bgnsurface( O_surface * ); - void do_endsurface( void ); - void do_bgntrim( O_trim * ); - void do_endtrim( void ); - void do_pwlcurve( O_pwlcurve * ); - void do_nurbscurve( O_nurbscurve * ); - void do_nurbssurface( O_nurbssurface * ); - void do_freenurbsproperty( Property * ); - void do_setnurbsproperty( Property * ); - void do_setnurbsproperty2( Property * ); - - Subdivider subdivider; - JumpBuffer* jumpbuffer; - Pool o_pwlcurvePool; - Pool o_nurbscurvePool; - Pool o_curvePool; - Pool o_trimPool; - Pool o_surfacePool; - Pool o_nurbssurfacePool; - Pool propertyPool; -public: - Pool quiltPool; -private: - TrimVertexPool extTrimVertexPool; - - int inSurface; /* bgnsurface seen */ - int inCurve; /* bgncurve seen */ - int inTrim; /* bgntrim seen */ - int isCurveModified; /* curve changed */ - int isTrimModified; /* trim curves changed */ - int isSurfaceModified; /* surface changed */ - int isDataValid; /* all data is good */ - int numTrims; /* valid trim regions */ - int playBack; - - O_trim** nextTrim; /* place to link o_trim */ - O_curve** nextCurve; /* place to link o_curve */ - O_nurbscurve** nextNurbscurve; /* place to link o_nurbscurve */ - O_pwlcurve** nextPwlcurve; /* place to link o_pwlcurve */ - O_nurbssurface** nextNurbssurface; /* place to link o_nurbssurface */ - - O_surface* currentSurface; - O_trim* currentTrim; - O_curve* currentCurve; - - DisplayList *dl; - -}; - -#endif /* __glunurbstess_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patch.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patch.cc deleted file mode 100644 index d59054d33..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patch.cc +++ /dev/null @@ -1,508 +0,0 @@ -/* $XFree86$ */ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * patch.c++ - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patch.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ - -#include -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "mymath.h" -#include "mystring.h" -#include "patch.h" -#include "mapdesc.h" -#include "quilt.h" -#include "nurbsconsts.h" -#include "simplemath.h" //for abs function in ::singleStep(); -#include "gluint.h" - - -/*-------------------------------------------------------------------------- - * Patch - copy patch from quilt and transform control points - *-------------------------------------------------------------------------- - */ - -Patch::Patch( Quilt_ptr geo, REAL *pta, REAL *ptb, Patch *n ) -{ -/* pspec[i].range is uninit here */ - mapdesc = geo->mapdesc; - cullval = mapdesc->isCulling() ? CULL_ACCEPT : CULL_TRIVIAL_ACCEPT; - notInBbox = mapdesc->isBboxSubdividing() ? 1 : 0; - needsSampling = mapdesc->isRangeSampling() ? 1 : 0; - pspec[0].order = geo->qspec[0].order; - pspec[1].order = geo->qspec[1].order; - pspec[0].stride = pspec[1].order * MAXCOORDS; - pspec[1].stride = MAXCOORDS; - - /* transform control points to sampling and culling spaces */ - REAL *ps = geo->cpts; - geo->select( pta, ptb ); - ps += geo->qspec[0].offset; - ps += geo->qspec[1].offset; - ps += geo->qspec[0].index * geo->qspec[0].order * geo->qspec[0].stride; - ps += geo->qspec[1].index * geo->qspec[1].order * geo->qspec[1].stride; - - if( needsSampling ) { - mapdesc->xformSampling( ps, geo->qspec[0].order, geo->qspec[0].stride, - geo->qspec[1].order, geo->qspec[1].stride, - spts, pspec[0].stride, pspec[1].stride ); - } - - if( cullval == CULL_ACCEPT ) { - mapdesc->xformCulling( ps, geo->qspec[0].order, geo->qspec[0].stride, - geo->qspec[1].order, geo->qspec[1].stride, - cpts, pspec[0].stride, pspec[1].stride ); - } - - if( notInBbox ) { - mapdesc->xformBounding( ps, geo->qspec[0].order, geo->qspec[0].stride, - geo->qspec[1].order, geo->qspec[1].stride, - bpts, pspec[0].stride, pspec[1].stride ); - } - - /* set scale range */ - pspec[0].range[0] = geo->qspec[0].breakpoints[geo->qspec[0].index]; - pspec[0].range[1] = geo->qspec[0].breakpoints[geo->qspec[0].index+1]; - pspec[0].range[2] = pspec[0].range[1] - pspec[0].range[0]; - - pspec[1].range[0] = geo->qspec[1].breakpoints[geo->qspec[1].index]; - pspec[1].range[1] = geo->qspec[1].breakpoints[geo->qspec[1].index+1]; - pspec[1].range[2] = pspec[1].range[1] - pspec[1].range[0]; - - // may need to subdivide to match range of sub-patch - if( pspec[0].range[0] != pta[0] ) { - assert( pspec[0].range[0] < pta[0] ); - Patch lower( *this, 0, pta[0], 0 ); - *this = lower; - } - - if( pspec[0].range[1] != ptb[0] ) { - assert( pspec[0].range[1] > ptb[0] ); - Patch upper( *this, 0, ptb[0], 0 ); - } - - if( pspec[1].range[0] != pta[1] ) { - assert( pspec[1].range[0] < pta[1] ); - Patch lower( *this, 1, pta[1], 0 ); - *this = lower; - } - - if( pspec[1].range[1] != ptb[1] ) { - assert( pspec[1].range[1] > ptb[1] ); - Patch upper( *this, 1, ptb[1], 0 ); - } - checkBboxConstraint(); - next = n; -} - -/*-------------------------------------------------------------------------- - * Patch - subdivide a patch along an isoparametric line - *-------------------------------------------------------------------------- - */ - -Patch::Patch( Patch& upper, int param, REAL value, Patch *n ) -{ - Patch& lower = *this; - - lower.cullval = upper.cullval; - lower.mapdesc = upper.mapdesc; - lower.notInBbox = upper.notInBbox; - lower.needsSampling = upper.needsSampling; - lower.pspec[0].order = upper.pspec[0].order; - lower.pspec[1].order = upper.pspec[1].order; - lower.pspec[0].stride = upper.pspec[0].stride; - lower.pspec[1].stride = upper.pspec[1].stride; - lower.next = n; - - /* reset scale range */ - switch( param ) { - case 0: { - REAL d = (value-upper.pspec[0].range[0]) / upper.pspec[0].range[2]; - if( needsSampling ) - mapdesc->subdivide( upper.spts, lower.spts, d, pspec[1].order, - pspec[1].stride, pspec[0].order, pspec[0].stride ); - - if( cullval == CULL_ACCEPT ) - mapdesc->subdivide( upper.cpts, lower.cpts, d, pspec[1].order, - pspec[1].stride, pspec[0].order, pspec[0].stride ); - - if( notInBbox ) - mapdesc->subdivide( upper.bpts, lower.bpts, d, pspec[1].order, - pspec[1].stride, pspec[0].order, pspec[0].stride ); - - lower.pspec[0].range[0] = upper.pspec[0].range[0]; - lower.pspec[0].range[1] = value; - lower.pspec[0].range[2] = value - upper.pspec[0].range[0]; - upper.pspec[0].range[0] = value; - upper.pspec[0].range[2] = upper.pspec[0].range[1] - value; - - lower.pspec[1].range[0] = upper.pspec[1].range[0]; - lower.pspec[1].range[1] = upper.pspec[1].range[1]; - lower.pspec[1].range[2] = upper.pspec[1].range[2]; - break; - } - case 1: { - REAL d = (value-upper.pspec[1].range[0]) / upper.pspec[1].range[2]; - if( needsSampling ) - mapdesc->subdivide( upper.spts, lower.spts, d, pspec[0].order, - pspec[0].stride, pspec[1].order, pspec[1].stride ); - if( cullval == CULL_ACCEPT ) - mapdesc->subdivide( upper.cpts, lower.cpts, d, pspec[0].order, - pspec[0].stride, pspec[1].order, pspec[1].stride ); - if( notInBbox ) - mapdesc->subdivide( upper.bpts, lower.bpts, d, pspec[0].order, - pspec[0].stride, pspec[1].order, pspec[1].stride ); - lower.pspec[0].range[0] = upper.pspec[0].range[0]; - lower.pspec[0].range[1] = upper.pspec[0].range[1]; - lower.pspec[0].range[2] = upper.pspec[0].range[2]; - - lower.pspec[1].range[0] = upper.pspec[1].range[0]; - lower.pspec[1].range[1] = value; - lower.pspec[1].range[2] = value - upper.pspec[1].range[0]; - upper.pspec[1].range[0] = value; - upper.pspec[1].range[2] = upper.pspec[1].range[1] - value; - break; - } - } - - // inherit bounding box - if( mapdesc->isBboxSubdividing() && ! notInBbox ) - memcpy( lower.bb, upper.bb, sizeof( bb ) ); - - lower.checkBboxConstraint(); - upper.checkBboxConstraint(); -} - -/*-------------------------------------------------------------------------- - * clamp - clamp the sampling rate to a given maximum - *-------------------------------------------------------------------------- - */ - -void -Patch::clamp( void ) -{ - if( mapdesc->clampfactor != N_NOCLAMPING ) { - pspec[0].clamp( mapdesc->clampfactor ); - pspec[1].clamp( mapdesc->clampfactor ); - } -} - -void -Patchspec::clamp( REAL clampfactor ) -{ - if( sidestep[0] < minstepsize ) - sidestep[0] = clampfactor * minstepsize; - if( sidestep[1] < minstepsize ) - sidestep[1] = clampfactor * minstepsize; - if( stepsize < minstepsize ) - stepsize = clampfactor * minstepsize; -} - -void -Patch::checkBboxConstraint( void ) -{ - if( notInBbox && - mapdesc->bboxTooBig( bpts, pspec[0].stride, pspec[1].stride, - pspec[0].order, pspec[1].order, bb ) != 1 ) { - notInBbox = 0; - } -} - -void -Patch::bbox( void ) -{ - if( mapdesc->isBboxSubdividing() ) - mapdesc->surfbbox( bb ); -} - -/*-------------------------------------------------------------------------- - * getstepsize - compute the sampling density across the patch - * and determine if patch needs to be subdivided - *-------------------------------------------------------------------------- - */ - -void -Patch::getstepsize( void ) -{ - pspec[0].minstepsize = pspec[1].minstepsize = 0; - pspec[0].needsSubdivision = pspec[1].needsSubdivision = 0; - - if( mapdesc->isConstantSampling() ) { - // fixed number of samples per patch in each direction - // maxsrate is number of s samples per patch - // maxtrate is number of t samples per patch - pspec[0].getstepsize( mapdesc->maxsrate ); - pspec[1].getstepsize( mapdesc->maxtrate ); - - } else if( mapdesc->isDomainSampling() ) { - // maxsrate is number of s samples per unit s length of domain - // maxtrate is number of t samples per unit t length of domain - pspec[0].getstepsize( mapdesc->maxsrate * pspec[0].range[2] ); - pspec[1].getstepsize( mapdesc->maxtrate * pspec[1].range[2] ); - - } else if( ! needsSampling ) { - pspec[0].singleStep(); - pspec[1].singleStep(); - } else { - // upper bound on path length between sample points - REAL tmp[MAXORDER][MAXORDER][MAXCOORDS]; - const int trstride = sizeof(tmp[0]) / sizeof(REAL); - const int tcstride = sizeof(tmp[0][0]) / sizeof(REAL); - - assert( pspec[0].order <= MAXORDER ); - - /* points have been transformed, therefore they are homogeneous */ - - int val = mapdesc->project( spts, pspec[0].stride, pspec[1].stride, - &tmp[0][0][0], trstride, tcstride, - pspec[0].order, pspec[1].order ); - if( val == 0 ) { - // control points cross infinity, therefore partials are undefined - pspec[0].getstepsize( mapdesc->maxsrate ); - pspec[1].getstepsize( mapdesc->maxtrate ); - } else { - REAL t1 = mapdesc->getProperty( N_PIXEL_TOLERANCE ); -// REAL t2 = mapdesc->getProperty( N_ERROR_TOLERANCE ); - pspec[0].minstepsize = ( mapdesc->maxsrate > 0.0 ) ? - (pspec[0].range[2] / mapdesc->maxsrate) : 0.0; - pspec[1].minstepsize = ( mapdesc->maxtrate > 0.0 ) ? - (pspec[1].range[2] / mapdesc->maxtrate) : 0.0; - if( mapdesc->isParametricDistanceSampling() || - mapdesc->isObjectSpaceParaSampling() ) { - - REAL t2; - t2 = mapdesc->getProperty( N_ERROR_TOLERANCE ); - - // t2 is upper bound on the distance between surface and tessellant - REAL ssv[2], ttv[2]; - REAL ss = mapdesc->calcPartialVelocity( ssv, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 2, 0, pspec[0].range[2], pspec[1].range[2], 0 ); - REAL st = mapdesc->calcPartialVelocity( 0, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 1, 1, pspec[0].range[2], pspec[1].range[2], -1 ); - REAL tt = mapdesc->calcPartialVelocity( ttv, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 0, 2, pspec[0].range[2], pspec[1].range[2], 1 ); - //make sure that ss st and tt are nonnegative: - if(ss <0) ss = -ss; - if(st <0) st = -st; - if(tt <0) tt = -tt; - - if( ss != 0.0 && tt != 0.0 ) { - /* printf( "ssv[0] %g ssv[1] %g ttv[0] %g ttv[1] %g\n", - ssv[0], ssv[1], ttv[0], ttv[1] ); */ - REAL ttq = ::SQRT( (float) ss ); - REAL ssq = ::SQRT( (float) tt ); - REAL ds = ::SQRT( 4 * t2 * ttq / ( ss * ttq + st * ssq ) ); - REAL dt = ::SQRT( 4 * t2 * ssq / ( tt * ssq + st * ttq ) ); - pspec[0].stepsize = ( ds < pspec[0].range[2] ) ? ds : pspec[0].range[2]; - REAL scutoff = 2.0 * t2 / ( pspec[0].range[2] * pspec[0].range[2]); - pspec[0].sidestep[0] = (ssv[0] > scutoff) ? ::SQRT( 2.0 * t2 / ssv[0] ) : pspec[0].range[2]; - pspec[0].sidestep[1] = (ssv[1] > scutoff) ? ::SQRT( 2.0 * t2 / ssv[1] ) : pspec[0].range[2]; - - pspec[1].stepsize = ( dt < pspec[1].range[2] ) ? dt : pspec[1].range[2]; - REAL tcutoff = 2.0 * t2 / ( pspec[1].range[2] * pspec[1].range[2]); - pspec[1].sidestep[0] = (ttv[0] > tcutoff) ? ::SQRT( 2.0 * t2 / ttv[0] ) : pspec[1].range[2]; - pspec[1].sidestep[1] = (ttv[1] > tcutoff) ? ::SQRT( 2.0 * t2 / ttv[1] ) : pspec[1].range[2]; - } else if( ss != 0.0 ) { - REAL x = pspec[1].range[2] * st; - REAL ds = ( ::SQRT( x * x + 8.0 * t2 * ss ) - x ) / ss; - pspec[0].stepsize = ( ds < pspec[0].range[2] ) ? ds : pspec[0].range[2]; - REAL scutoff = 2.0 * t2 / ( pspec[0].range[2] * pspec[0].range[2]); - pspec[0].sidestep[0] = (ssv[0] > scutoff) ? ::SQRT( 2.0 * t2 / ssv[0] ) : pspec[0].range[2]; - pspec[0].sidestep[1] = (ssv[1] > scutoff) ? ::SQRT( 2.0 * t2 / ssv[1] ) : pspec[0].range[2]; - pspec[1].singleStep(); - } else if( tt != 0.0 ) { - REAL x = pspec[0].range[2] * st; - REAL dt = ( ::SQRT( x * x + 8.0 * t2 * tt ) - x ) / tt; - pspec[0].singleStep(); - REAL tcutoff = 2.0 * t2 / ( pspec[1].range[2] * pspec[1].range[2]); - pspec[1].stepsize = ( dt < pspec[1].range[2] ) ? dt : pspec[1].range[2]; - pspec[1].sidestep[0] = (ttv[0] > tcutoff) ? ::SQRT( 2.0 * t2 / ttv[0] ) : pspec[1].range[2]; - pspec[1].sidestep[1] = (ttv[1] > tcutoff) ? ::SQRT( 2.0 * t2 / ttv[1] ) : pspec[1].range[2]; - } else { - if( 4.0 * t2 > st * pspec[0].range[2] * pspec[1].range[2] ) { - pspec[0].singleStep(); - pspec[1].singleStep(); - } else { - REAL area = 4.0 * t2 / st; - REAL ds = ::SQRT( area * pspec[0].range[2] / pspec[1].range[2] ); - REAL dt = ::SQRT( area * pspec[1].range[2] / pspec[0].range[2] ); - pspec[0].stepsize = ( ds < pspec[0].range[2] ) ? ds : pspec[0].range[2]; - pspec[0].sidestep[0] = pspec[0].range[2]; - pspec[0].sidestep[1] = pspec[0].range[2]; - - pspec[1].stepsize = ( dt < pspec[1].range[2] ) ? dt : pspec[1].range[2]; - pspec[1].sidestep[0] = pspec[1].range[2]; - pspec[1].sidestep[1] = pspec[1].range[2]; - } - } - } else if( mapdesc->isPathLengthSampling() || - mapdesc->isObjectSpacePathSampling()) { - // t1 is upper bound on path length - REAL msv[2], mtv[2]; - REAL ms = mapdesc->calcPartialVelocity( msv, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 1, 0, pspec[0].range[2], pspec[1].range[2], 0 ); - REAL mt = mapdesc->calcPartialVelocity( mtv, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 0, 1, pspec[0].range[2], pspec[1].range[2], 1 ); - REAL side_scale = 1.0; - - if( ms != 0.0 ) { - if( mt != 0.0 ) { -/* REAL d = t1 / ( ms * ms + mt * mt );*/ -/* REAL ds = mt * d;*/ - REAL ds = t1 / (2.0*ms); -/* REAL dt = ms * d;*/ - REAL dt = t1 / (2.0*mt); - pspec[0].stepsize = ( ds < pspec[0].range[2] ) ? ds : pspec[0].range[2]; - pspec[0].sidestep[0] = ( msv[0] * pspec[0].range[2] > t1 ) ? (side_scale* t1 / msv[0]) : pspec[0].range[2]; - pspec[0].sidestep[1] = ( msv[1] * pspec[0].range[2] > t1 ) ? (side_scale* t1 / msv[1]) : pspec[0].range[2]; - - pspec[1].stepsize = ( dt < pspec[1].range[2] ) ? dt : pspec[1].range[2]; - pspec[1].sidestep[0] = ( mtv[0] * pspec[1].range[2] > t1 ) ? (side_scale*t1 / mtv[0]) : pspec[1].range[2]; - pspec[1].sidestep[1] = ( mtv[1] * pspec[1].range[2] > t1 ) ? (side_scale*t1 / mtv[1]) : pspec[1].range[2]; - } else { - pspec[0].stepsize = ( t1 < ms * pspec[0].range[2] ) ? (t1 / ms) : pspec[0].range[2]; - pspec[0].sidestep[0] = ( msv[0] * pspec[0].range[2] > t1 ) ? (t1 / msv[0]) : pspec[0].range[2]; - pspec[0].sidestep[1] = ( msv[1] * pspec[0].range[2] > t1 ) ? (t1 / msv[1]) : pspec[0].range[2]; - - pspec[1].singleStep(); - } - } else { - if( mt != 0.0 ) { - pspec[0].singleStep(); - - pspec[1].stepsize = ( t1 < mt * pspec[1].range[2] ) ? (t1 / mt) : pspec[1].range[2]; - pspec[1].sidestep[0] = ( mtv[0] * pspec[1].range[2] > t1 ) ? (t1 / mtv[0]) : pspec[1].range[2]; - pspec[1].sidestep[1] = ( mtv[1] * pspec[1].range[2] > t1 ) ? (t1 / mtv[1]) : pspec[1].range[2]; - } else { - pspec[0].singleStep(); - pspec[1].singleStep(); - } - } - } else if( mapdesc->isSurfaceAreaSampling() ) { - // t is the square root of area -/* - REAL msv[2], mtv[2]; - REAL ms = mapdesc->calcPartialVelocity( msv, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 1, 0, pspec[0].range[2], pspec[1].range[2], 0 ); - REAL mt = mapdesc->calcPartialVelocity( mtv, &tmp[0][0][0], trstride, tcstride, pspec[0].order, pspec[1].order, 0, 1, pspec[0].range[2], pspec[1].range[2], 1 ); - if( ms != 0.0 && mt != 0.0 ) { - REAL d = 1.0 / (ms * mt); - t *= M_SQRT2; - REAL ds = t * ::SQRT( d * pspec[0].range[2] / pspec[1].range[2] ); - REAL dt = t * ::SQRT( d * pspec[1].range[2] / pspec[0].range[2] ); - pspec[0].stepsize = ( ds < pspec[0].range[2] ) ? ds : pspec[0].range[2]; - pspec[0].sidestep[0] = ( msv[0] * pspec[0].range[2] > t ) ? (t / msv[0]) : pspec[0].range[2]; - pspec[0].sidestep[1] = ( msv[1] * pspec[0].range[2] > t ) ? (t / msv[1]) : pspec[0].range[2]; - - pspec[1].stepsize = ( dt < pspec[1].range[2] ) ? dt : pspec[1].range[2]; - pspec[1].sidestep[0] = ( mtv[0] * pspec[1].range[2] > t ) ? (t / mtv[0]) : pspec[1].range[2]; - pspec[1].sidestep[1] = ( mtv[1] * pspec[1].range[2] > t ) ? (t / mtv[1]) : pspec[1].range[2]; - } else { - pspec[0].singleStep(); - pspec[1].singleStep(); - } -*/ - } else { - pspec[0].singleStep(); - pspec[1].singleStep(); - } - } - } - -#ifdef DEBUG - dprintf( "sidesteps %g %g %g %g, stepsize %g %g\n", - pspec[0].sidestep[0], pspec[0].sidestep[1], - pspec[1].sidestep[0], pspec[1].sidestep[1], - pspec[0].stepsize, pspec[1].stepsize ); -#endif - - if( mapdesc->minsavings != N_NOSAVINGSSUBDIVISION ) { - REAL savings = 1./(pspec[0].stepsize * pspec[1].stepsize) ; - savings-= (2./( pspec[0].sidestep[0] + pspec[0].sidestep[1] )) * - (2./( pspec[1].sidestep[0] + pspec[1].sidestep[1] )); - - savings *= pspec[0].range[2] * pspec[1].range[2]; - if( savings > mapdesc->minsavings ) { - pspec[0].needsSubdivision = pspec[1].needsSubdivision = 1; - } - } - - if( pspec[0].stepsize < pspec[0].minstepsize ) pspec[0].needsSubdivision = 1; - if( pspec[1].stepsize < pspec[1].minstepsize ) pspec[1].needsSubdivision = 1; - needsSampling = (needsSampling ? needsSamplingSubdivision() : 0); -} - -void -Patchspec::singleStep() -{ - stepsize = sidestep[0] = sidestep[1] = abs(range[2]); -} - -void -Patchspec::getstepsize( REAL max ) // max is number of samples for entire patch -{ - stepsize = ( max >= 1.0 ) ? range[2] / max : range[2]; - if (stepsize < 0.0) { - stepsize = -stepsize; - } - sidestep[0] = sidestep[1] = minstepsize = stepsize; -} - -int -Patch::needsSamplingSubdivision( void ) -{ - return (pspec[0].needsSubdivision || pspec[1].needsSubdivision) ? 1 : 0; -} - -int -Patch::needsNonSamplingSubdivision( void ) -{ - return notInBbox; -} - -int -Patch::needsSubdivision( int param ) -{ - return pspec[param].needsSubdivision; -} - -int -Patch::cullCheck( void ) -{ - if( cullval == CULL_ACCEPT ) - cullval = mapdesc->cullCheck( cpts, pspec[0].order, pspec[0].stride, - pspec[1].order, pspec[1].stride ); - return cullval; -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patch.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patch.h deleted file mode 100644 index eaedac1bc..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patch.h +++ /dev/null @@ -1,100 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * patch.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patch.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __glupatch_h_ -#define __glupatch_h_ - -#include "types.h" -#include "defines.h" - -class Quilt; -class Mapdesc; - - -struct Pspec { - REAL range[3]; - REAL sidestep[2]; - REAL stepsize; - REAL minstepsize; - int needsSubdivision; -}; - -struct Patchspec : public Pspec { - int order; - int stride; - void clamp( REAL ); - void getstepsize( REAL ); - void singleStep( void ); -}; - -class Patch { -public: -friend class Subdivider; -friend class Quilt; -friend class Patchlist; - Patch( Quilt *, REAL*, REAL *, Patch * ); - Patch( Patch &, int, REAL, Patch * ); - void bbox( void ); - void clamp( void ); - void getstepsize( void ); - int cullCheck( void ); - int needsSubdivision( int ); - int needsSamplingSubdivision( void ); - int needsNonSamplingSubdivision( void ); - - int get_uorder() {return pspec[0].order;} - int get_vorder() {return pspec[1].order;} - -private: - - Mapdesc* mapdesc; - Patch* next; - int cullval; - int notInBbox; - int needsSampling; - REAL cpts[MAXORDER*MAXORDER*MAXCOORDS]; //culling pts - REAL spts[MAXORDER*MAXORDER*MAXCOORDS]; //sampling pts - REAL bpts[MAXORDER*MAXORDER*MAXCOORDS]; //bbox pts - Patchspec pspec[2]; - void checkBboxConstraint( void ); - REAL bb[2][MAXCOORDS]; -}; -#endif /* __glupatch_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patchlist.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patchlist.cc deleted file mode 100644 index 8690bb604..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patchlist.cc +++ /dev/null @@ -1,172 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * patchlist.c++ - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patchlist.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#include -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "quilt.h" -#include "patchlist.h" -#include "patch.h" -#include "nurbsconsts.h" - -Patchlist::Patchlist( Quilt *quilts, REAL *pta, REAL *ptb ) -{ - patch = 0; - for( Quilt *q = quilts; q; q = q->next ) - patch = new Patch( q, pta, ptb, patch ); - pspec[0].range[0] = pta[0]; - pspec[0].range[1] = ptb[0]; - pspec[0].range[2] = ptb[0] - pta[0]; - - pspec[1].range[0] = pta[1]; - pspec[1].range[1] = ptb[1]; - pspec[1].range[2] = ptb[1] - pta[1]; -} - -Patchlist::Patchlist( Patchlist &upper, int param, REAL value) -{ - Patchlist &lower = *this; - patch = 0; - for( Patch *p = upper.patch; p; p = p->next ) - patch = new Patch( *p, param, value, patch ); - - if( param == 0 ) { - lower.pspec[0].range[0] = upper.pspec[0].range[0]; - lower.pspec[0].range[1] = value; - lower.pspec[0].range[2] = value - upper.pspec[0].range[0]; - upper.pspec[0].range[0] = value; - upper.pspec[0].range[2] = upper.pspec[0].range[1] - value; - lower.pspec[1] = upper.pspec[1]; - } else { - lower.pspec[0] = upper.pspec[0]; - lower.pspec[1].range[0] = upper.pspec[1].range[0]; - lower.pspec[1].range[1] = value; - lower.pspec[1].range[2] = value - upper.pspec[1].range[0]; - upper.pspec[1].range[0] = value; - upper.pspec[1].range[2] = upper.pspec[1].range[1] - value; - } -} - -Patchlist::~Patchlist() -{ - while( patch ) { - Patch *p = patch; - patch = patch->next; - delete p; - } -} - -int -Patchlist::cullCheck( void ) -{ - for( Patch *p = patch; p; p = p->next ) - if( p->cullCheck() == CULL_TRIVIAL_REJECT ) - return CULL_TRIVIAL_REJECT; - return CULL_ACCEPT; -} - -void -Patchlist::getRanges(REAL ranges[4]) -{ - ranges[0] = pspec[0].range[0]; - ranges[1] = pspec[0].range[1]; - ranges[2] = pspec[1].range[0]; - ranges[3] = pspec[1].range[1]; -} - -void -Patchlist::getstepsize( void ) -{ - pspec[0].stepsize = pspec[0].range[2]; - pspec[0].sidestep[0] = pspec[0].range[2]; - pspec[0].sidestep[1] = pspec[0].range[2]; - - pspec[1].stepsize = pspec[1].range[2]; - pspec[1].sidestep[0] = pspec[1].range[2]; - pspec[1].sidestep[1] = pspec[1].range[2]; - - for( Patch *p = patch; p; p = p->next ) { - p->getstepsize(); - p->clamp(); - pspec[0].stepsize = ((p->pspec[0].stepsize < pspec[0].stepsize) ? p->pspec[0].stepsize : pspec[0].stepsize); - pspec[0].sidestep[0] = ((p->pspec[0].sidestep[0] < pspec[0].sidestep[0]) ? p->pspec[0].sidestep[0] : pspec[0].sidestep[0]); - pspec[0].sidestep[1] = ((p->pspec[0].sidestep[1] < pspec[0].sidestep[1]) ? p->pspec[0].sidestep[1] : pspec[0].sidestep[1]); - pspec[1].stepsize = ((p->pspec[1].stepsize < pspec[1].stepsize) ? p->pspec[1].stepsize : pspec[1].stepsize); - pspec[1].sidestep[0] = ((p->pspec[1].sidestep[0] < pspec[1].sidestep[0]) ? p->pspec[1].sidestep[0] : pspec[1].sidestep[0]); - pspec[1].sidestep[1] = ((p->pspec[1].sidestep[1] < pspec[1].sidestep[1]) ? p->pspec[1].sidestep[1] : pspec[1].sidestep[1]); - } -} - -void -Patchlist::bbox( void ) -{ - for( Patch *p = patch; p; p = p->next ) - p->bbox(); -} - -int -Patchlist::needsNonSamplingSubdivision( void ) -{ - notInBbox = 0; - for( Patch *p = patch; p; p = p->next ) - notInBbox |= p->needsNonSamplingSubdivision(); - return notInBbox; -} - -int -Patchlist::needsSamplingSubdivision( void ) -{ - pspec[0].needsSubdivision = 0; - pspec[1].needsSubdivision = 0; - - for( Patch *p = patch; p; p = p->next ) { - pspec[0].needsSubdivision |= p->pspec[0].needsSubdivision; - pspec[1].needsSubdivision |= p->pspec[0].needsSubdivision; - } - return (pspec[0].needsSubdivision || pspec[1].needsSubdivision) ? 1 : 0; -} - -int -Patchlist::needsSubdivision( int param ) -{ - return pspec[param].needsSubdivision; -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patchlist.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patchlist.h deleted file mode 100644 index 5df915edc..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patchlist.h +++ /dev/null @@ -1,98 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * patchlist.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/patchlist.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __glupatchlist_h_ -#define __glupatchlist_h_ - -#include "types.h" -#include "defines.h" -#include "patch.h" - -class Quilt; - -class Patchlist { -friend class Subdivider; -public: - Patchlist( Quilt *, REAL *, REAL * ); - Patchlist( Patchlist &, int , REAL ); - ~Patchlist(); - void bbox(); - int cullCheck( void ); - void getstepsize( void ); - int needsNonSamplingSubdivision( void ); - int needsSamplingSubdivision( void ); - int needsSubdivision( int ); - REAL getStepsize( int ); - void getRanges(REAL ranges[4]); - - int get_uorder(); - int get_vorder(); -private: - Patch *patch; - int notInBbox; - int needsSampling; - Pspec pspec[2]; -}; - -inline REAL -Patchlist::getStepsize( int param ) -{ - return pspec[param].stepsize; -} - -inline int -Patchlist::get_uorder() -{ - return patch->get_uorder(); - -} - -inline int - Patchlist::get_vorder() -{ - return patch->get_vorder(); -} - - - - - -#endif /* __glupatchlist_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/pwlarc.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/pwlarc.h deleted file mode 100644 index 9f624839a..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/pwlarc.h +++ /dev/null @@ -1,84 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * pwlarc.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/pwlarc.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __glupwlarc_h_ -#define __glupwlarc_h_ - -#include "myassert.h" -#include "nurbsconsts.h" - -class TrimVertex; - -class PwlArc : public PooledObj { /* a piecewise-linear arc */ -public: - TrimVertex * pts; /* sample points */ - int npts; /* number of sample points */ - long type; /* curve type */ - inline PwlArc( void ); - inline PwlArc( int, TrimVertex * ); - inline PwlArc( int, TrimVertex *, long ); -}; - -inline -PwlArc::PwlArc( void ) -{ - type = N_P2D; - pts = 0; - npts = -1; -} - -inline -PwlArc::PwlArc( int _npts, TrimVertex *_pts ) -{ - pts = _pts; - npts = _npts; - type = N_P2D; -} - -inline -PwlArc::PwlArc( int _npts, TrimVertex *_pts, long _type ) -{ - pts = _pts; - npts = _npts; - type = _type; -} - -#endif /* __glupwlarc_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/quilt.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/quilt.cc deleted file mode 100644 index 69e276718..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/quilt.cc +++ /dev/null @@ -1,278 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * quilt.c++ - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/quilt.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "quilt.h" -#include "backend.h" -#include "mapdesc.h" -#include "flist.h" -#include "knotvector.h" -#include "patchlist.h" -#include "math.h" //fabs() -#include "simplemath.h" //min() - -/* local preprocessor definitions */ -#define DEF_PATCH_STEPSIZE .4 -#define fsizeof(x) (sizeof(x)/sizeof(REAL)) - - -Quilt::Quilt( Mapdesc *_mapdesc ) -{ - mapdesc = _mapdesc; -} - -void -Quilt::deleteMe( Pool& p ) -{ - for( Quiltspec *q=qspec; q != eqspec; q++ ) { -#if 1 - if( q->breakpoints) delete[] q->breakpoints; q->breakpoints = 0; -#else - if( q->breakpoints) { - delete[] q->breakpoints; - q->breakpoints = 0; -printf("in here\n"); - } -#endif - } - if( cpts ) delete[] cpts; - cpts = 0; - PooledObj::deleteMe( p ); -} - -void -Quilt::show( void ) -{ -#ifndef NDEBUG - int nc = mapdesc->getNcoords(); - REAL *ps = cpts; - ps += qspec[0].offset; - ps += qspec[1].offset; - for( int i=0; i!= qspec[0].order * qspec[0].width; i++ ) { - for( int j = 0; j!= qspec[1].order * qspec[1].width; j++ ) { - for( int k=0; k < nc; k++ ) - dprintf( "%g ", ps[i*qspec[0].stride + j*qspec[1].stride + k] ); - dprintf( "\n" ); - } - dprintf( "\n" ); - } - dprintf( "\n" ); -#endif -} - -/*-------------------------------------------------------------------------- - * Quilt::select - find which map in each quilt contains the points - * pta and ptb with pta[i] < ptb[i] - *-------------------------------------------------------------------------- - */ - -void -Quilt::select( REAL *pta, REAL *ptb ) -{ - int dim = eqspec - qspec; - int i, j; - for( i=0; i=0; j-- ) - if( (qspec[i].breakpoints[j] <= pta[i] ) && - (ptb[i] <= qspec[i].breakpoints[j+1] ) ) - break; - assert( j != -1 ); - qspec[i].index = j; - } -} - -void -Quilt::download( Backend &backend ) -{ - if( getDimension() == 2 ) { - REAL *ps = cpts; - ps += qspec[0].offset; - ps += qspec[1].offset; - ps += qspec[0].index * qspec[0].order * qspec[0].stride; - ps += qspec[1].index * qspec[1].order * qspec[1].stride; - backend.surfpts( mapdesc->getType(), ps, - qspec[0].stride, - qspec[1].stride, - qspec[0].order, - qspec[1].order, - qspec[0].breakpoints[qspec[0].index], - qspec[0].breakpoints[qspec[0].index+1], - qspec[1].breakpoints[qspec[1].index], - qspec[1].breakpoints[qspec[1].index+1] ); - } else { - REAL *ps = cpts; - ps += qspec[0].offset; - ps += qspec[0].index * qspec[0].order * qspec[0].stride; - backend.curvpts( mapdesc->getType(), ps, - qspec[0].stride, - qspec[0].order, - qspec[0].breakpoints[qspec[0].index], - qspec[0].breakpoints[qspec[0].index+1] ); - } -} - -/*-------------------------------------------------------------------------- - * Quilt::downloadAll - download each map that contains the current patch - *-------------------------------------------------------------------------- - */ - -void -Quilt::downloadAll( REAL *pta, REAL *ptb, Backend &backend ) -{ - for( Quilt *m = this; m; m=m->next ) { - m->select( pta, ptb ); - m->download( backend ); - } -} - -/*-------------------------------------------------------------------------- - * Quilt::isCulled - determine if an entire quilt is trivially rejected. - *-------------------------------------------------------------------------- - */ - -int -Quilt::isCulled( void ) -{ - if( mapdesc->isCulling() ) - return mapdesc->xformAndCullCheck( cpts + qspec[0].offset + qspec[1].offset, - qspec[0].order * qspec[0].width, qspec[0].stride, - qspec[1].order * qspec[1].width, qspec[1].stride ); - else - return CULL_ACCEPT; -} - -/*--------------------------------------------------------------------------- - * Quilt::getRange - retrieve the valid paramater range of a set of quilts - *--------------------------------------------------------------------------- - */ -void -Quilt::getRange( REAL *from, REAL *to, Flist& slist, Flist &tlist ) -{ - getRange( from, to, 0, slist ); - getRange( from, to, 1, tlist ); -} - -/*--------------------------------------------------------------------------- - * Quilt::getRange - retrieve the valid paramater range of a set of quilts - *--------------------------------------------------------------------------- - */ -void -Quilt::getRange( REAL *from, REAL *to, int i, Flist &list ) -{ - Quilt *maps = this; - from[i] = maps->qspec[i].breakpoints[0]; - to[i] = maps->qspec[i].breakpoints[maps->qspec[i].width]; - int maxpts = 0; - Quilt_ptr m; - for( m=maps; m; m=m->next ) { - if( m->qspec[i].breakpoints[0] > from[i] ) - from[i] = m->qspec[i].breakpoints[0]; - if( m->qspec[i].breakpoints[m->qspec[i].width] < to[i] ) - to[i] = m->qspec[i].breakpoints[m->qspec[i].width]; - maxpts += m->qspec[i].width + 1; - } - - list.grow( maxpts ); - - for( m=maps; m; m=m->next ) - for( int j=0; j<=m->qspec[i].width; j++ ) { - list.add( m->qspec[i].breakpoints[j] ); - } - - list.filter( ); - list.taper( from[i], to[i] ); -} - -void -Quilt::getRange( REAL *from, REAL *to, Flist& slist ) -{ - getRange( from, to, 0, slist ); -} - -void -Quilt::findRates( Flist& slist, Flist& tlist, REAL rate[2] ) -{ - findSampleRates( slist, tlist ); - rate[0] = qspec[0].step_size; - rate[1] = qspec[1].step_size; - - for( Quilt *q = next; q; q = q->next ) { - q->findSampleRates( slist, tlist ); - if( q->qspec[0].step_size < rate[0] ) - rate[0] = q->qspec[0].step_size; - if( q->qspec[1].step_size < rate[1] ) - rate[1] = q->qspec[1].step_size; - } -} - -void -Quilt::findSampleRates( Flist& slist, Flist& tlist ) -{ - qspec[0].step_size = DEF_PATCH_STEPSIZE * - (qspec[0].breakpoints[qspec[0].width] - qspec[0].breakpoints[0]); - qspec[1].step_size = DEF_PATCH_STEPSIZE * - (qspec[1].breakpoints[qspec[1].width] - qspec[1].breakpoints[0]); - - for( int i = slist.start; i < slist.end-1; i++ ) { - for( int j = tlist.start; j < tlist.end-1; j++ ) { - - REAL pta[2], ptb[2]; - pta[0] = slist.pts[i]; - ptb[0] = slist.pts[i+1]; - pta[1] = tlist.pts[j]; - ptb[1] = tlist.pts[j+1]; - Patchlist patchlist( this, pta, ptb ); - patchlist.getstepsize(); - - { - float edge_len_s = min(fabs(ptb[0]-pta[0]),1.0); - float edge_len_t = min(fabs(ptb[1]-pta[1]),1.0); - - if( patchlist.getStepsize(0)/edge_len_s < qspec[0].step_size ) - qspec[0].step_size = patchlist.getStepsize(0)/edge_len_s; - if( patchlist.getStepsize(1)/edge_len_t < qspec[1].step_size ) - qspec[1].step_size = patchlist.getStepsize(1)/edge_len_t; - } - } - } -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/quilt.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/quilt.h deleted file mode 100644 index 1c7bd9f19..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/quilt.h +++ /dev/null @@ -1,98 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * quilt.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/quilt.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __gluquilt_h_ -#define __gluquilt_h_ - -#include "defines.h" -#include "bufpool.h" -#include "types.h" - -class Backend; -class Mapdesc; -class Flist; -class Knotvector; - -/* constants for memory allocation of NURBS to Bezier conversion */ -#define MAXDIM 2 - -struct Quiltspec { /* a specification for a dimension of a quilt */ - int stride; /* words between points */ - int width; /* number of segments */ - int offset; /* words to first point */ - int order; /* order */ - int index; /* current segment number */ - int bdry[2]; /* boundary edge flag */ - REAL step_size; - Knot * breakpoints; -}; - -typedef Quiltspec *Quiltspec_ptr; - -class Quilt : public PooledObj { /* an array of bezier patches */ -public: - Quilt( Mapdesc * ); - Mapdesc * mapdesc; /* map descriptor */ - REAL * cpts; /* control points */ - Quiltspec qspec[MAXDIM]; /* the dimensional data */ - Quiltspec_ptr eqspec; /* qspec trailer */ - Quilt *next; /* next quilt in linked list */ - -public: - void deleteMe( Pool& ); - void toBezier( Knotvector &, INREAL *, long ); - void toBezier( Knotvector &, Knotvector &, INREAL *, long ); - void select( REAL *, REAL * ); - int getDimension( void ) { return eqspec - qspec; } - void download( Backend & ); - void downloadAll( REAL *, REAL *, Backend & ); - int isCulled( void ); - void getRange( REAL *, REAL *, Flist&, Flist & ); - void getRange( REAL *, REAL *, int, Flist & ); - void getRange( REAL *, REAL *, Flist& ); - void findRates( Flist& slist, Flist& tlist, REAL[2] ); - void findSampleRates( Flist& slist, Flist& tlist ); - void show(); -}; - -typedef class Quilt *Quilt_ptr; - -#endif /* __gluquilt_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/reader.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/reader.cc deleted file mode 100644 index bf67323eb..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/reader.cc +++ /dev/null @@ -1,148 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * reader.c++ - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/reader.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#include -#include "glimports.h" -#include "nurbsconsts.h" -#include "reader.h" -#include "trimvertex.h" -#include "simplemath.h" - -//when read a pwlCurve, if two consecutive points are the same, then -//eliminate one of them. This makes the tessellator more robust. The spec -//assumes the application makes sure there are no redundant points. -//but in Inspector, the trim curves seem to have redundant points a lot. -//I guess other similar users may have the same problem. - -#define ELIMINATE_REDUNDANT_POINTS - -#ifdef ELIMINATE_REDUNDANT_POINTS -#define equal(x,y) ( abs(x-y) <= 0.00001) -#endif - -#ifdef ELIMINATE_REDUNDANT_POINTS -O_pwlcurve::O_pwlcurve( long _type, long count, INREAL *array, long byte_stride, TrimVertex *trimpts ) -{ - next = 0; - used = 0; - owner = 0; - pts = trimpts; - npts = (int) count; - int i; - - /* copy user data into internal trimming data structures */ - switch( _type ) { - case N_P2D: { - TrimVertex *v = pts; - TrimVertex *prev = NULL; - int num = 0; - int doit; - for(i=0; iparam[0], array[0]) && equal(prev->param[1], array[1])) - { - doit = 0; - } - } - - if(doit) - { - v->param[0] = (REAL) array[0]; - v->param[1] = (REAL) array[1]; - prev = v; - v++; - num++; - } - array = (INREAL *) (((char *) array) + byte_stride); - } - npts = num; - break; - } - case N_P2DR: { - TrimVertex *v = pts; - for( TrimVertex *lastv = v + count; v != lastv; v++ ) { - v->param[0] = (REAL) array[0] / (REAL) array[2]; - v->param[1] = (REAL) array[1] / (REAL) array[2]; - array = (INREAL *) (((char *) array) + byte_stride); - } - break; - } - } -} -#else -O_pwlcurve::O_pwlcurve( long _type, long count, INREAL *array, long byte_stride, TrimVertex *trimpts ) -{ - next = 0; - used = 0; - owner = 0; - pts = trimpts; - npts = (int) count; - - /* copy user data into internal trimming data structures */ - switch( _type ) { - case N_P2D: { - TrimVertex *v = pts; - for( TrimVertex *lastv = v + count; v != lastv; v++ ) { - v->param[0] = (REAL) array[0]; - v->param[1] = (REAL) array[1]; - array = (INREAL *) (((char *) array) + byte_stride); - } - break; - } - case N_P2DR: { - TrimVertex *v = pts; - for( TrimVertex *lastv = v + count; v != lastv; v++ ) { - v->param[0] = (REAL) array[0] / (REAL) array[2]; - v->param[1] = (REAL) array[1] / (REAL) array[2]; - array = (INREAL *) (((char *) array) + byte_stride); - } - break; - } - } -} -#endif - - - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/reader.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/reader.h deleted file mode 100644 index 1acf2a356..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/reader.h +++ /dev/null @@ -1,138 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * reader.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/reader.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __glureader_h_ -#define __glureader_h_ - -#include "bufpool.h" -#include "types.h" - -enum Curvetype { ct_nurbscurve, ct_pwlcurve, ct_none }; - -struct Property; -struct O_surface; -struct O_nurbssurface; -struct O_trim; -struct O_pwlcurve; -struct O_nurbscurve; -struct O_curve; -class Quilt; -class TrimVertex; - - -struct O_curve : public PooledObj { - union { - O_nurbscurve *o_nurbscurve; - O_pwlcurve *o_pwlcurve; - } curve; - Curvetype curvetype; /* arc type: pwl or nurbs */ - O_curve * next; /* next arc in loop */ - O_surface * owner; /* owning surface */ - int used; /* curve called in cur surf */ - int save; /* 1 if in display list */ - long nuid; - O_curve() { next = 0; used = 0; owner = 0; - curve.o_pwlcurve = 0; } - }; - -struct O_nurbscurve : public PooledObj { - Quilt *bezier_curves; /* array of bezier curves */ - long type; /* range descriptor */ - REAL tesselation; /* tesselation tolerance */ - int method; /* tesselation method */ - O_nurbscurve * next; /* next curve in list */ - int used; /* curve called in cur surf */ - int save; /* 1 if in display list */ - O_curve * owner; /* owning curve */ - O_nurbscurve( long _type ) - { type = _type; owner = 0; next = 0; used = 0; } - }; - -class O_pwlcurve : public PooledObj { -public: - TrimVertex *pts; /* array of trim vertices */ - int npts; /* number of trim vertices */ - O_pwlcurve * next; /* next curve in list */ - int used; /* curve called in cur surf */ - int save; /* 1 if in display list */ - O_curve * owner; /* owning curve */ - O_pwlcurve( long, long, INREAL *, long, TrimVertex * ); - }; - -struct O_trim : public PooledObj { - O_curve *o_curve; /* closed trim loop */ - O_trim * next; /* next loop along trim */ - int save; /* 1 if in display list */ - O_trim() { next = 0; o_curve = 0; } - }; - -struct O_nurbssurface : public PooledObj { - Quilt * bezier_patches;/* array of bezier patches */ - long type; /* range descriptor */ - O_surface * owner; /* owning surface */ - O_nurbssurface * next; /* next surface in chain */ - int save; /* 1 if in display list */ - int used; /* 1 if prev called in block */ - O_nurbssurface( long _type ) - { type = _type; owner = 0; next = 0; used = 0; } - }; - -struct O_surface : public PooledObj { - O_nurbssurface * o_nurbssurface; /* linked list of surfaces */ - O_trim * o_trim; /* list of trim loops */ - int save; /* 1 if in display list */ - long nuid; - O_surface() { o_trim = 0; o_nurbssurface = 0; } - }; - -struct Property : public PooledObj { - long type; - long tag; - REAL value; - int save; /* 1 if in display list */ - Property( long _type, long _tag, INREAL _value ) - { type = _type; tag = _tag; value = (REAL) _value; } - Property( long _tag, INREAL _value ) - { type = 0; tag = _tag; value = (REAL) _value; } - }; - -class NurbsTessellator; -#endif /* __glureader_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/renderhints.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/renderhints.cc deleted file mode 100644 index b0788a392..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/renderhints.cc +++ /dev/null @@ -1,135 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * renderhints.c++ - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/renderhints.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#include "glimports.h" -#include "mystdio.h" -#include "renderhints.h" -#include "defines.h" -#include "nurbsconsts.h" - - -/*-------------------------------------------------------------------------- - * Renderhints::Renderhints - set all window specific options - *-------------------------------------------------------------------------- - */ -Renderhints::Renderhints() -{ - display_method = N_FILL; - errorchecking = N_MSG; - subdivisions = 6.0; - tmp1 = 0.0; -} - -void -Renderhints::init( void ) -{ - maxsubdivisions = (int) subdivisions; - if( maxsubdivisions < 0 ) maxsubdivisions = 0; - - - if( display_method == N_FILL ) { - wiretris = 0; - wirequads = 0; - } else if( display_method == N_OUTLINE_TRI ) { - wiretris = 1; - wirequads = 0; - } else if( display_method == N_OUTLINE_QUAD ) { - wiretris = 0; - wirequads = 1; - } else { - wiretris = 1; - wirequads = 1; - } -} - -int -Renderhints::isProperty( long property ) -{ - switch ( property ) { - case N_DISPLAY: - case N_ERRORCHECKING: - case N_SUBDIVISIONS: - case N_TMP1: - return 1; - default: - return 0; - } -} - -REAL -Renderhints::getProperty( long property ) -{ - switch ( property ) { - case N_DISPLAY: - return display_method; - case N_ERRORCHECKING: - return errorchecking; - case N_SUBDIVISIONS: - return subdivisions; - case N_TMP1: - return tmp1; - default: - abort(); - return -1; //not necessary, needed to shut up compiler - } -} - -void -Renderhints::setProperty( long property, REAL value ) -{ - switch ( property ) { - case N_DISPLAY: - display_method = value; - break; - case N_ERRORCHECKING: - errorchecking = value; - break; - case N_SUBDIVISIONS: - subdivisions = value; - break; - case N_TMP1: /* unused */ - tmp1 = value; - break; - default: - abort(); - break; - } -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/renderhints.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/renderhints.h deleted file mode 100644 index 0251b6ffc..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/renderhints.h +++ /dev/null @@ -1,66 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * renderhints.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/renderhints.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __glurenderhints_h_ -#define __glurenderhints_h_ - -#include "types.h" - -class Renderhints { -public: - Renderhints( void ); - void init( void ); - int isProperty( long ); - REAL getProperty( long ); - void setProperty( long, REAL ); - - REAL display_method; /* display mode */ - REAL errorchecking; /* activate error checking */ - REAL subdivisions; /* maximum number of subdivisions per patch */ - REAL tmp1; /* unused */ - - int displaydomain; - int maxsubdivisions; - int wiretris; - int wirequads; -}; - -#endif /* __glurenderhints_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/simplemath.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/simplemath.h deleted file mode 100644 index 814c7545b..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/simplemath.h +++ /dev/null @@ -1,59 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ -/* $XFree86$ */ - -/* - * simplemath.h - * - * Header: //depot/main/gfx/lib/glu/libnurbs/internals/simplemath.h#4 $ - */ - -#ifndef __glusimplemath_h_ -#define __glusimplemath_h_ - -/* simple inline routines */ - -inline int -max( int x, int y ) { return ( x < y ) ? y : x; } - -inline REAL -min( REAL x, REAL y ) { return ( x > y ) ? y : x; } - -#if defined(__SCO__) || defined(__UNIXWARE__) || defined(__SUNPRO_CC) -#define abs __gluabs -#endif -inline REAL -abs( REAL x ) { return ( x < 0.0 ) ? -x : x; } - -#endif /* __glusimplemath_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/slicer.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/slicer.cc deleted file mode 100644 index d31da74c0..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/slicer.cc +++ /dev/null @@ -1,1271 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ -/* $XFree86: xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/slicer.cc,v 1.2tsi Exp $ */ - -/* - * slicer.c++ - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/slicer.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ - -#include -#include -#include -#include "glimports.h" -#include "mystdio.h" -#include "myassert.h" -#include "bufpool.h" -#include "slicer.h" -#include "backend.h" -#include "arc.h" -#include "gridtrimvertex.h" -#include "trimvertex.h" -#include "varray.h" - -#include "polyUtil.h" //for area() - -//static int count=0; - -/*USE_OPTTT is initiated in trimvertex.h*/ - -#ifdef USE_OPTTT -# include -#endif - -//#define USE_READ_FLAG //whether to use new or old tesselator - //if defined, it reads "flagFile", - // if the number is 1, then use new tess - // otherwise, use the old tess. - //if not defined, then use new tess. -#ifdef USE_READ_FLAG -static Int read_flag(char* name); -Int newtess_flag = read_flag("flagFile"); -#endif - -//#define COUNT_TRIANGLES -#ifdef COUNT_TRIANGLES -Int num_triangles = 0; -Int num_quads = 0; -#endif - -#define max(a,b) ((a>b)? a:b) -#define ZERO 0.00001 /*determing whether a loop is a rectngle or not*/ -#define equalRect(a,b) ((fabs(a-b) <= ZERO)? 1:0) //only used in tessellating a rectangle - -#ifdef UNUSED -static Int is_Convex(Arc_ptr loop) -{ - if(area(loop->tail(), loop->head(), loop->next->head()) <0 ) - return 0; - for(Arc_ptr jarc = loop->next; jarc != loop; jarc = jarc->next) - { - if(area(jarc->tail(), jarc->head(), jarc->next->head()) < 0) - return 0; - } - return 1; -} -#endif - -/******triangulate a monotone polygon**************/ -#include "monoTriangulation.h" -#ifdef UNUSED -static int is_U_monotone(Arc_ptr loop) -{ - int n_changes=0; - int prev_sign; - int cur_sign; - Arc_ptr temp; - - cur_sign = compV2InX(loop->head(), loop->tail()); - - n_changes = (compV2InX(loop->prev->head(), loop->prev->tail()) - != cur_sign); - - for(temp=loop->next; temp != loop; temp = temp->next) - { - prev_sign = cur_sign; - cur_sign = compV2InX(temp->head(), temp->tail()); - if(cur_sign != prev_sign) - { -#ifdef DEBUG - printf("***change signe\n"); -#endif - n_changes++; - } - } - if(n_changes == 2) return 1; - else - return 0; -} -#endif - -inline int compInY(REAL a[2], REAL b[2]) -{ - if(a[1] < b[1]) - return -1; - else if (a[1] > b[1]) - return 1; - else if(a[0] > b[0]) - return 1; - else return -1; -} - -void monoTriangulationLoop(Arc_ptr loop, Backend& backend, primStream* pStream) -{ - int i; - //find the top, bottom, increasing and decreasing chain - //then call monoTrianulation - Arc_ptr jarc, temp; - Arc_ptr top; - Arc_ptr bot; - top = bot = loop; - if(compInY(loop->tail(), loop->prev->tail()) < 0) - { - //first find bot - for(temp = loop->next; temp != loop; temp = temp->next) - { - if(compInY(temp->tail(), temp->prev->tail()) > 0) - break; - } - bot = temp->prev; - //then find top - for(temp=loop->prev; temp != loop; temp = temp->prev) - { - if(compInY(temp->tail(), temp->prev->tail()) > 0) - break; - } - top = temp; - } - else //loop > loop->prev - { - for(temp=loop->next; temp != loop; temp = temp->next) - { - if(compInY(temp->tail(), temp->prev->tail()) < 0) - break; - } - top = temp->prev; - for(temp=loop->prev; temp != loop; temp = temp->prev) - { - if(compInY(temp->tail(), temp->prev->tail()) < 0) - break; - } - bot = temp; - } - //creat increase and decrease chains - vertexArray inc_chain(50); //this is a dynamci array - for(i=1; i<=top->pwlArc->npts-2; i++) - { - //the first vertex is the top which doesn't below to inc_chain - inc_chain.appendVertex(top->pwlArc->pts[i].param); - } - for(jarc=top->next; jarc != bot; jarc = jarc->next) - { - for(i=0; i<=jarc->pwlArc->npts-2; i++) - { - inc_chain.appendVertex(jarc->pwlArc->pts[i].param); - } - } - vertexArray dec_chain(50); - for(jarc = top->prev; jarc != bot; jarc = jarc->prev) - { - for(i=jarc->pwlArc->npts-2; i>=0; i--) - { - dec_chain.appendVertex(jarc->pwlArc->pts[i].param); - } - } - for(i=bot->pwlArc->npts-2; i>=1; i--) - { - dec_chain.appendVertex(jarc->pwlArc->pts[i].param); - } - - monoTriangulationRec(top->tail(), bot->tail(), &inc_chain, 0, - &dec_chain, 0, &backend); - -} - -/********tesselate a rectanlge (OPTIMIZATION**************/ -static void triangulateRectGen(Arc_ptr loop, int n_ulines, int n_vlines, Backend& backend); - -static Int is_rect(Arc_ptr loop) -{ - Int nlines =1; - for(Arc_ptr jarc = loop->next; jarc != loop; jarc = jarc->next) - { - nlines++; - if(nlines == 5) - break; - } - if(nlines != 4) - return 0; - - -/* -printf("here1\n"); -printf("loop->tail=(%f,%f)\n", loop->tail()[0], loop->tail()[1]); -printf("loop->head=(%f,%f)\n", loop->head()[0], loop->head()[1]); -printf("loop->next->tail=(%f,%f)\n", loop->next->tail()[0], loop->next->tail()[1]); -printf("loop->next->head=(%f,%f)\n", loop->next->head()[0], loop->next->head()[1]); -if(fabs(loop->tail()[0] - loop->head()[0])<0.000001) - printf("equal 1\n"); -if(loop->next->tail()[1] == loop->next->head()[1]) - printf("equal 2\n"); -*/ - - if( (fabs(loop->tail()[0] - loop->head()[0])<=ZERO) && - (fabs(loop->next->tail()[1] - loop->next->head()[1])<=ZERO) && - (fabs(loop->prev->tail()[1] - loop->prev->head()[1])<=ZERO) && - (fabs(loop->prev->prev->tail()[0] - loop->prev->prev->head()[0])<=ZERO) - ) - return 1; - else if - ( (fabs(loop->tail()[1] - loop->head()[1]) <= ZERO) && - (fabs(loop->next->tail()[0] - loop->next->head()[0]) <= ZERO) && - (fabs(loop->prev->tail()[0] - loop->prev->head()[0]) <= ZERO) && - (fabs(loop->prev->prev->tail()[1] - loop->prev->prev->head()[1]) <= ZERO) - ) - return 1; - else - return 0; -} - -#ifdef USE_OPTTT -//a line with the same u for opt -static void evalLineNOGE_BU(TrimVertex *verts, int n, Backend& backend) -{ - int i; - backend.preEvaluateBU(verts[0].param[0]); - for(i=0; itail()[1] == loop->head()[1]) - { - if(loop->tail()[1] > loop->prev->prev->tail()[1]) - { - - top = loop; - } - else{ - - top = loop->prev->prev; - } - } - else - { - if(loop->tail()[0] > loop->prev->prev->tail()[0]) - { - //loop is the right arc - - top = loop->next; - } - else - { - - top = loop->prev; - } - } - left = top->next; - bot = left->next; - right= bot->next; - - //if u, v are both nonlinear, then if the - //boundary is tessellated dense, we also - //sample the inside to get a better tesslletant. - if( (!ulinear) && (!vlinear)) - { - int nu = top->pwlArc->npts; - if(nu < bot->pwlArc->npts) - nu = bot->pwlArc->npts; - int nv = left->pwlArc->npts; - if(nv < right->pwlArc->npts) - nv = right->pwlArc->npts; -/* - if(nu > 2 && nv > 2) - { - triangulateRectGen(top, nu-2, nv-2, backend); - return; - } -*/ - } - - if(TB_or_LR == 1) - triangulateRectAux(top->pwlArc, bot->pwlArc, left->pwlArc, right->pwlArc, backend); - else if(TB_or_LR == -1) - triangulateRectAux(left->pwlArc, right->pwlArc, bot->pwlArc, top->pwlArc, backend); - else - { - Int maxPointsTB = top->pwlArc->npts + bot->pwlArc->npts; - Int maxPointsLR = left->pwlArc->npts + right->pwlArc->npts; - - if(maxPointsTB < maxPointsLR) - triangulateRectAux(left->pwlArc, right->pwlArc, bot->pwlArc, top->pwlArc, backend); - else - triangulateRectAux(top->pwlArc, bot->pwlArc, left->pwlArc, right->pwlArc, backend); - } -} - -static void triangulateRectAux(PwlArc* top, PwlArc* bot, PwlArc* left, PwlArc* right, Backend& backend) -{ //if(maxPointsTB >= maxPointsLR) - { - - Int d, topd_left, topd_right, botd_left, botd_right, i,j; - d = left->npts /2; - -#ifdef USE_OPTTT - evalLineNOGE(top->pts, top->npts, backend); - evalLineNOGE(bot->pts, bot->npts, backend); - evalLineNOGE(left->pts, left->npts, backend); - evalLineNOGE(right->pts, right->npts, backend); -#endif - - if(top->npts == 2) { - backend.bgntfan(); - OPT_OUTVERT(top->pts[0], backend);//the root - for(i=0; inpts; i++){ - OPT_OUTVERT(left->pts[i], backend); - } - for(i=1; i<= bot->npts-2; i++){ - OPT_OUTVERT(bot->pts[i], backend); - } - backend.endtfan(); - - backend.bgntfan(); - OPT_OUTVERT(bot->pts[bot->npts-2], backend); - for(i=0; inpts; i++){ - OPT_OUTVERT(right->pts[i], backend); - } - backend.endtfan(); - } - else if(bot->npts == 2) { - backend.bgntfan(); - OPT_OUTVERT(bot->pts[0], backend);//the root - for(i=0; inpts; i++){ - OPT_OUTVERT(right->pts[i], backend); - } - for(i=1; i<= top->npts-2; i++){ - OPT_OUTVERT(top->pts[i], backend); - } - backend.endtfan(); - - backend.bgntfan(); - OPT_OUTVERT(top->pts[top->npts-2], backend); - for(i=0; inpts; i++){ - OPT_OUTVERT(left->pts[i], backend); - } - backend.endtfan(); - } - else { //both top and bot have >=3 points - - backend.bgntfan(); - - OPT_OUTVERT(top->pts[top->npts-2], backend); - - for(i=0; i<=d; i++) - { - OPT_OUTVERT(left->pts[i], backend); - } - backend.endtfan(); - - backend.bgntfan(); - - OPT_OUTVERT(bot->pts[1], backend); - - OPT_OUTVERT(top->pts[top->npts-2], backend); - - for(i=d; i< left->npts; i++) - { - OPT_OUTVERT(left->pts[i], backend); - } - backend.endtfan(); - - d = right->npts/2; - //output only when dnpts-1 and - // - if(dnpts-1) - { - backend.bgntfan(); - // backend.tmeshvert(& top->pts[1]); - OPT_OUTVERT(top->pts[1], backend); - for(i=d; i< right->npts; i++) - { - // backend.tmeshvert(& right->pts[i]); - OPT_OUTVERT(right->pts[i], backend); - } - backend.endtfan(); - } - - backend.bgntfan(); - // backend.tmeshvert(& bot->pts[bot->npts-2]); - OPT_OUTVERT( bot->pts[bot->npts-2], backend); - for(i=0; i<=d; i++) - { - // backend.tmeshvert(& right->pts[i]); - OPT_OUTVERT(right->pts[i], backend); - } - - // backend.tmeshvert(& top->pts[1]); - OPT_OUTVERT(top->pts[1], backend); - - backend.endtfan(); - - - topd_left = top->npts-2; - topd_right = 1; //topd_left>= topd_right - - botd_left = 1; - botd_right = bot->npts-2; //botd_left<= bot_dright - - if(top->npts < bot->npts) - { - int delta=bot->npts - top->npts; - int u = delta/2; - botd_left = 1+ u; - botd_right = bot->npts-2-( delta-u); - - if(botd_left >1) - { - backend.bgntfan(); - // backend.tmeshvert(& top->pts[top->npts-2]); - OPT_OUTVERT(top->pts[top->npts-2], backend); - for(i=1; i<= botd_left; i++) - { - // backend.tmeshvert(& bot->pts[i]); - OPT_OUTVERT(bot->pts[i] , backend); - } - backend.endtfan(); - } - if(botd_right < bot->npts-2) - { - backend.bgntfan(); - OPT_OUTVERT(top->pts[1], backend); - for(i=botd_right; i<= bot->npts-2; i++) - OPT_OUTVERT(bot->pts[i], backend); - backend.endtfan(); - } - } - else if(top->npts> bot->npts) - { - int delta=top->npts-bot->npts; - int u = delta/2; - topd_left = top->npts-2 - u; - topd_right = 1+delta-u; - - if(topd_left < top->npts-2) - { - backend.bgntfan(); - // backend.tmeshvert(& bot->pts[1]); - OPT_OUTVERT(bot->pts[1], backend); - for(i=topd_left; i<= top->npts-2; i++) - { - // backend.tmeshvert(& top->pts[i]); - OPT_OUTVERT(top->pts[i], backend); - } - backend.endtfan(); - } - if(topd_right > 1) - { - backend.bgntfan(); - OPT_OUTVERT(bot->pts[bot->npts-2], backend); - for(i=1; i<= topd_right; i++) - OPT_OUTVERT(top->pts[i], backend); - backend.endtfan(); - } - } - - if(topd_left <= topd_right) - return; - - backend.bgnqstrip(); - for(j=botd_left, i=topd_left; i>=topd_right; i--,j++) - { - // backend.tmeshvert(& top->pts[i]); - // backend.tmeshvert(& bot->pts[j]); - OPT_OUTVERT(top->pts[i], backend); - OPT_OUTVERT(bot->pts[j], backend); - } - backend.endqstrip(); - } - } -} - -static void triangulateRectCenter(int n_ulines, REAL* u_val, - int n_vlines, REAL* v_val, - Backend& backend) -{ - /* - TrimVertex trimVert; - trimVert.nuid = 0; - */ - - backend.surfgrid(u_val[0], u_val[n_ulines-1], n_ulines-1, - v_val[n_vlines-1], v_val[0], n_vlines-1); - - if(n_ulines>1 && n_vlines>1) - backend.surfmesh(0,0,n_ulines-1,n_vlines-1); - - return; - - /* - for(i=0; ipwlArc->npts); - assert(upper_val); - if(dir) - { - for(k=0,i=arc->pwlArc->npts-1; i>=0; i--,k++) - { - upper_val[k] = arc->pwlArc->pts[i].param[0]; - } - backend.evalUStrip(arc->pwlArc->npts, arc->pwlArc->pts[0].param[1], - upper_val, - n_ulines, v, u_val); - } - else - { - for(k=0,i=0; ipwlArc->npts; i++,k++) - { - upper_val[k] = arc->pwlArc->pts[i].param[0]; - - } - - backend.evalUStrip( - n_ulines, v, u_val, - arc->pwlArc->npts, arc->pwlArc->pts[0].param[1], upper_val - ); - } - - free(upper_val); - return; - } - else //is_v - { - int i,k; - REAL* left_val = (REAL*) malloc(sizeof(REAL) * arc->pwlArc->npts); - assert(left_val); - if(dir) - { - for(k=0,i=arc->pwlArc->npts-1; i>=0; i--,k++) - { - left_val[k] = arc->pwlArc->pts[i].param[1]; - } - backend.evalVStrip(arc->pwlArc->npts, arc->pwlArc->pts[0].param[0], - left_val, - n_ulines, v, u_val); - } - else - { - for(k=0,i=0; ipwlArc->npts; i++,k++) - { - left_val[k] = arc->pwlArc->pts[i].param[1]; - } - backend.evalVStrip( - n_ulines, v, u_val, - arc->pwlArc->npts, arc->pwlArc->pts[0].param[0], left_val - ); - } - free(left_val); - return; - } - - //the following is a different version of the above code. If you comment - //the above code, the following code will still work. The reason to leave - //the folliwng code here is purely for testing purpose. - /* - int i,j; - PwlArc* parc = arc->pwlArc; - int d1 = parc->npts-1; - int d2 = 0; - TrimVertex trimVert; - trimVert.nuid = 0;//???? - REAL* temp_u_val = u_val; - if(dir ==0) //have to reverse u_val - { - temp_u_val = (REAL*) malloc(sizeof(REAL) * n_ulines); - assert(temp_u_val); - for(i=0; inpts > n_ulines) - { - d1 = n_ulines-1; - - backend.bgntfan(); - if(is_u){ - trimVert.param[0] = u_val[0]; - trimVert.param[1] = v; - } - else - { - trimVert.param[1] = u_val[0]; - trimVert.param[0] = v; - } - - backend.tmeshvert(& trimVert); - for(i=d1; i< parc->npts; i++) - backend.tmeshvert(& parc->pts[i]); - backend.endtfan(); - - - } - else if(parc->npts < n_ulines) - { - d2 = n_ulines-parc->npts; - - - backend.bgntfan(); - backend.tmeshvert(& parc->pts[parc->npts-1]); - for(i=0; i<= d2; i++) - { - if(is_u){ - trimVert.param[0] = u_val[i]; - trimVert.param[1] = v; - } - else - { - trimVert.param[1] = u_val[i]; - trimVert.param[0] = v; - } - backend.tmeshvert(&trimVert); - } - backend.endtfan(); - - } - if(d1>0){ - - - backend.bgnqstrip(); - for(i=d1, j=d2; i>=0; i--, j++) - { - backend.tmeshvert(& parc->pts[i]); - - if(is_u){ - trimVert.param[0] = u_val[j]; - trimVert.param[1] = v; - } - else{ - trimVert.param[1] = u_val[j]; - trimVert.param[0] = v; - } - backend.tmeshvert(&trimVert); - } - backend.endqstrip(); - } - if(dir == 0) //temp_u_val was mallocated - free(temp_u_val); - */ -} - -//n_ulines is the number of ulines inside, and n_vlines is the number of vlines -//inside, different from meanings elsewhere!!! -static void triangulateRectGen(Arc_ptr loop, int n_ulines, int n_vlines, Backend& backend) -{ - - int i; - //we know the loop is a rectangle, but not sure which is top - Arc_ptr top, bot, left, right; - - if(equalRect(loop->tail()[1] , loop->head()[1])) - { - - if(loop->tail()[1] > loop->prev->prev->tail()[1]) - { - - top = loop; - } - else{ - - top = loop->prev->prev; - } - } - else - { - if(loop->tail()[0] > loop->prev->prev->tail()[0]) - { - //loop is the right arc - - top = loop->next; - } - else - { - - top = loop->prev; - } - } - - left = top->next; - bot = left->next; - right= bot->next; - -#ifdef COUNT_TRIANGLES - num_triangles += loop->pwlArc->npts + - left->pwlArc->npts + - bot->pwlArc->npts + - right->pwlArc->npts - + 2*n_ulines + 2*n_vlines - -8; - num_quads += (n_ulines-1)*(n_vlines-1); -#endif -/* - backend.surfgrid(left->tail()[0], right->tail()[0], n_ulines+1, - top->tail()[1], bot->tail()[1], n_vlines+1); -// if(n_ulines>1 && n_vlines>1) - backend.surfmesh(0,0,n_ulines+1,n_vlines+1); -return; -*/ - REAL* u_val=(REAL*) malloc(sizeof(REAL)*n_ulines); - assert(u_val); - REAL* v_val=(REAL*)malloc(sizeof(REAL) * n_vlines); - assert(v_val); - REAL u_stepsize = (right->tail()[0] - left->tail()[0])/( (REAL) n_ulines+1); - REAL v_stepsize = (top->tail()[1] - bot->tail()[1])/( (REAL) n_vlines+1); - Real temp=left->tail()[0]+u_stepsize; - for(i=0; itail()[1] + v_stepsize; - for(i=0; ipwlArc->npts); - for(i=0; ipwlArc->npts; i++) - { - vert[0] = arc->pwlArc->pts[i].param[0]; - vert[1] = arc->pwlArc->pts[i].param[1]; - sline->setPoint(i, vert); - } - ret = new directedLine(INCREASING, sline); - return ret; -} - -/*an pwlArc may not be a straight line*/ -directedLine* arcToMultDLines(directedLine* original, Arc_ptr arc) -{ - directedLine* ret = original; - int is_linear = 0; - if(arc->pwlArc->npts == 2 ) - is_linear = 1; - else if(area(arc->pwlArc->pts[0].param, arc->pwlArc->pts[1].param, arc->pwlArc->pts[arc->pwlArc->npts-1].param) == 0.0) - is_linear = 1; - - if(is_linear) - { - directedLine *dline = arcToDLine(arc); - if(ret == NULL) - ret = dline; - else - ret->insert(dline); - return ret; - } - else /*not linear*/ - { - for(Int i=0; ipwlArc->npts-1; i++) - { - Real vert[2][2]; - vert[0][0] = arc->pwlArc->pts[i].param[0]; - vert[0][1] = arc->pwlArc->pts[i].param[1]; - vert[1][0] = arc->pwlArc->pts[i+1].param[0]; - vert[1][1] = arc->pwlArc->pts[i+1].param[1]; - - sampledLine *sline = new sampledLine(2, vert); - directedLine *dline = new directedLine(INCREASING, sline); - if(ret == NULL) - ret = dline; - else - ret->insert(dline); - } - return ret; - } -} - -directedLine* arcLoopToDLineLoop(Arc_ptr loop) -{ - directedLine* ret; - - if(loop == NULL) - return NULL; - ret = arcToMultDLines(NULL, loop); -//ret->printSingle(); - for(Arc_ptr temp = loop->next; temp != loop; temp = temp->next){ - ret = arcToMultDLines(ret, temp); -//ret->printSingle(); - } - - return ret; -} - -/* -void Slicer::evalRBArray(rectBlockArray* rbArray, gridWrap* grid) -{ - TrimVertex *trimVert = (TrimVertex*)malloc(sizeof(TrimVertex)); - trimVert -> nuid = 0;//???? - - Real* u_values = grid->get_u_values(); - Real* v_values = grid->get_v_values(); - - Int i,j,k,l; - - for(l=0; lget_n_elements(); l++) - { - rectBlock* block = rbArray->get_element(l); - for(k=0, i=block->get_upGridLineIndex(); i>block->get_lowGridLineIndex(); i--, k++) - { - - backend.bgnqstrip(); - for(j=block->get_leftIndices()[k+1]; j<= block->get_rightIndices()[k+1]; j++) - { - trimVert->param[0] = u_values[j]; - trimVert->param[1] = v_values[i]; - backend.tmeshvert(trimVert); - - trimVert->param[1] = v_values[i-1]; - backend.tmeshvert(trimVert); - - } - backend.endqstrip(); - - } - } - - free(trimVert); -} -*/ - -void Slicer::evalRBArray(rectBlockArray* rbArray, gridWrap* grid) -{ - Int i,j,k; - - Int n_vlines=grid->get_n_vlines(); - //the reason to switch the position of v_max and v_min is because of the - //the orientation problem. glEvalMesh generates quad_strip clockwise, but - //we need counter-clockwise. - backend.surfgrid(grid->get_u_min(), grid->get_u_max(), grid->get_n_ulines()-1, - grid->get_v_max(), grid->get_v_min(), n_vlines-1); - - - for(j=0; jget_n_elements(); j++) - { - rectBlock* block = rbArray->get_element(j); - Int low = block->get_lowGridLineIndex(); - Int high = block->get_upGridLineIndex(); - - for(k=0, i=high; i>low; i--, k++) - { - backend.surfmesh(block->get_leftIndices()[k+1], n_vlines-1-i, block->get_rightIndices()[k+1]-block->get_leftIndices()[k+1], 1); - } - } -} - - -void Slicer::evalStream(primStream* pStream) -{ - Int i,j,k; - k=0; -/* TrimVertex X;*/ - TrimVertex *trimVert =/*&X*/ (TrimVertex*)malloc(sizeof(TrimVertex)); - trimVert -> nuid = 0;//??? - Real* vertices = pStream->get_vertices(); //for efficiency - for(i=0; iget_n_prims(); i++) - { - - //ith primitive has #vertices = lengths[i], type=types[i] - switch(pStream->get_type(i)){ - case PRIMITIVE_STREAM_FAN: - - backend.bgntfan(); - - for(j=0; jget_length(i); j++) - { - trimVert->param[0] = vertices[k]; - trimVert->param[1] = vertices[k+1]; - backend.tmeshvert(trimVert); - -// backend.tmeshvert(vertices[k], vertices[k+1]); - k += 2; - } - backend.endtfan(); - break; - - default: - fprintf(stderr, "evalStream: not implemented yet\n"); - exit(1); - - } - } - free(trimVert); -} - -void Slicer::slice_new(Arc_ptr loop) -{ -//count++; -//if(count == 78) count=1; -//printf("count=%i\n", count); -//if( ! (4<= count && count <=4)) return; - - - Int num_ulines; - Int num_vlines; - Real uMin, uMax, vMin, vMax; - Real mydu, mydv; - uMin = uMax = loop->tail()[0]; - vMin = vMax = loop->tail()[1]; - mydu = (du>0)? du: -du; - mydv = (dv>0)? dv: -dv; - - for(Arc_ptr jarc=loop->next; jarc != loop; jarc = jarc->next) - { - - if(jarc->tail()[0] < uMin) - uMin = jarc->tail()[0]; - if(jarc->tail()[0] > uMax) - uMax = jarc->tail()[0]; - if(jarc->tail()[1] < vMin) - vMin = jarc->tail()[1]; - if(jarc->tail()[1] > vMax) - vMax = jarc->tail()[1]; - } - - if(mydu > uMax - uMin) - num_ulines = 2; - else - { - num_ulines = 3 + (Int) ((uMax-uMin)/mydu); - } - if(mydv>=vMax-vMin) - num_vlines = 2; - else - { - num_vlines = 2+(Int)((vMax-vMin)/mydv); - } - - Int isRect = is_rect(loop); - - if(isRect && (num_ulines<=2 || num_vlines<=2)) - { - if(vlinear) - triangulateRect(loop, backend, 1, ulinear, vlinear); - else if(ulinear) - triangulateRect(loop, backend, -1, ulinear, vlinear); - else - triangulateRect(loop, backend, 0, ulinear, vlinear); - } - - else if(isRect) - { - triangulateRectGen(loop, num_ulines-2, num_vlines-2, backend); - } - else if( (num_ulines<=2 || num_vlines <=2) && ulinear) - { - monoTriangulationFunBackend(loop, compV2InY, &backend); - } - else if( (!ulinear) && (!vlinear) && (num_ulines == 2) && (num_vlines > 2)) - { - monoTriangulationFunBackend(loop, compV2InY, &backend); - } - else - { - directedLine* poly = arcLoopToDLineLoop(loop); - - gridWrap grid(num_ulines, num_vlines, uMin, uMax, vMin, vMax); - primStream pStream(20, 20); - rectBlockArray rbArray(20); - - sampleMonoPoly(poly, &grid, ulinear, vlinear, &pStream, &rbArray); - - evalStream(&pStream); - - evalRBArray(&rbArray, &grid); - -#ifdef COUNT_TRIANGLES - num_triangles += pStream.num_triangles(); - num_quads += rbArray.num_quads(); -#endif - poly->deleteSinglePolygonWithSline(); - } - -#ifdef COUNT_TRIANGLES - printf("num_triangles=%i\n", num_triangles); - printf("num_quads = %i\n", num_quads); -#endif -} - -void Slicer::slice(Arc_ptr loop) -{ -#ifdef USE_READ_FLAG - if(read_flag("flagFile")) - slice_new(loop); - else - slice_old(loop); - -#else - slice_new(loop); -#endif - -} - -Slicer::Slicer( Backend &b ) - : CoveAndTiler( b ), Mesher( b ), backend( b ) -{ - ulinear = 0; - vlinear = 0; -} - -Slicer::~Slicer() -{ -} - -void -Slicer::setisolines( int x ) -{ - isolines = x; -} - -void -Slicer::setstriptessellation( REAL x, REAL y ) -{ - assert(x > 0 && y > 0); - du = x; - dv = y; - setDu( du ); -} - -void -Slicer::slice_old( Arc_ptr loop ) -{ - loop->markverts(); - - Arc_ptr extrema[4]; - loop->getextrema( extrema ); - - unsigned int npts = loop->numpts(); - TrimRegion::init( npts, extrema[0] ); - - Mesher::init( npts ); - - long ulines = uarray.init( du, extrema[1], extrema[3] ); -//printf("ulines = %i\n", ulines); - Varray varray; - long vlines = varray.init( dv, extrema[0], extrema[2] ); -//printf("vlines = %i\n", vlines); - long botv = 0; - long topv; - TrimRegion::init( varray.varray[botv] ); - getGridExtent( &extrema[0]->pwlArc->pts[0], &extrema[0]->pwlArc->pts[0] ); - - for( long quad=0; quadmarkverts(); - - if( jarc->pwlArc->npts >= 2 ) { - backend.bgnoutline(); - for( int j = jarc->pwlArc->npts-1; j >= 0; j-- ) - backend.linevert( &(jarc->pwlArc->pts[j]) ); - backend.endoutline(); - } -} - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/slicer.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/slicer.h deleted file mode 100644 index 9b1dc81fe..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/slicer.h +++ /dev/null @@ -1,90 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * slicer.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/slicer.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __gluslicer_h_ -#define __gluslicer_h_ - -#include "trimregion.h" -#include "mesher.h" -#include "coveandtiler.h" -#include "primitiveStream.h" -#include "rectBlock.h" - -class Backend; -class Arc; -class TrimVertex; - -class Slicer : public CoveAndTiler, public Mesher { -public: - Slicer( Backend & ); - ~Slicer( void ); - void slice( Arc_ptr ); - void slice_old( Arc_ptr); - void slice_new( Arc_ptr ); - void evalStream(primStream* ); - void evalRBArray(rectBlockArray* rbArray, gridWrap* grid); - - void outline( Arc_ptr ); - void setstriptessellation( REAL, REAL ); - void setisolines( int ); - - void set_ulinear(int ulinear_flag) - { - ulinear = ulinear_flag; - } - void set_vlinear(int vlinear_flag) - { - vlinear = vlinear_flag; - } -private: - Backend& backend; - REAL oneOverDu; - REAL du, dv; - int isolines; - - void outline( void ); - void initGridlines( void ); - void advanceGridlines( long ); - - int ulinear; //indicate whether uorder is 2 or not - int vlinear; //indicate whether vorder is 2 or not -}; -#endif /* __gluslicer_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/sorter.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/sorter.cc deleted file mode 100644 index a1ccafe18..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/sorter.cc +++ /dev/null @@ -1,141 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * sorter.c++ - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/sorter.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#include "glimports.h" -#include "sorter.h" -#include "mystdio.h" - -Sorter::Sorter( int _es ) -{ - es = _es; -} - -void -Sorter::qsort( void *a, int n ) -{ - qs1( (char *)a, ((char *)a)+n*es); -} - -int -Sorter::qscmp( char *, char * ) -{ - dprintf( "Sorter::qscmp: pure virtual called\n" ); - return 0; -} - - -void -Sorter::qsexc( char *, char * ) -{ - dprintf( "Sorter::qsexc: pure virtual called\n" ); -} - - -void -Sorter::qstexc( char *, char *, char * ) -{ - dprintf( "Sorter::qstexc: pure virtual called\n" ); -} - -void -Sorter::qs1( char *a, char *l ) -{ - char *i, *j; - char *lp, *hp; - int c; - unsigned int n; - -start: - if((n=l-a) <= es) - return; - n = es * (n / (2*es)); - hp = lp = a+n; - i = a; - j = l-es; - while(1) { - if(i < lp) { - if((c = qscmp(i, lp)) == 0) { - qsexc(i, lp -= es); - continue; - } - if(c < 0) { - i += es; - continue; - } - } - -loop: - if(j > hp) { - if((c = qscmp(hp, j)) == 0) { - qsexc(hp += es, j); - goto loop; - } - if(c > 0) { - if(i == lp) { - qstexc(i, hp += es, j); - i = lp += es; - goto loop; - } - qsexc(i, j); - j -= es; - i += es; - continue; - } - j -= es; - goto loop; - } - - if(i == lp) { - if(lp-a >= l-hp) { - qs1(hp+es, l); - l = lp; - } else { - qs1(a, lp); - a = hp+es; - } - goto start; - } - - qstexc(j, lp -= es, i); - j = hp -= es; - } -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/sorter.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/sorter.h deleted file mode 100644 index edd6a6aa5..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/sorter.h +++ /dev/null @@ -1,57 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/sorter.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef __glusorter_h_ -#define __glusorter_h_ - -class Sorter { -public: - Sorter( int es ); - void qsort( void *a, int n ); - -protected: - virtual int qscmp( char *, char * ); - virtual void qsexc( char *i, char *j ); // i<-j, j<-i - virtual void qstexc( char *i, char *j, char *k ); // i<-k, k<-j, j<-i - -private: - void qs1( char *, char * ); - int es; -}; -#endif /* __glusorter_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/splitarcs.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/splitarcs.cc deleted file mode 100644 index 46a7b2562..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/splitarcs.cc +++ /dev/null @@ -1,295 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * splitarcs.c++ - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/splitarcs.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mysetjmp.h" -#include "mystdio.h" -#include "subdivider.h" -#include "arcsorter.h" -#include "arc.h" -#include "bin.h" - -/* local preprocessor definitions */ -#define MAXARCS 10 - -/*---------------------------------------------------------------------------- - * Subdivider::split - split trim regions in source bin by line (param == value). - *---------------------------------------------------------------------------- - */ - -void -Subdivider::split( Bin& bin, Bin& left, Bin& right, int param, REAL value ) -{ - Bin intersections, unknown; - - partition( bin, left, intersections, right, unknown, param, value ); - - int count = intersections.numarcs(); - if( count % 2 ) { -#ifndef NDEBUG - left.show( "left" ); - intersections.show( "intersections" ); - right.show( "right" ); -#endif - ::mylongjmp( jumpbuffer, 29 ); - } - - Arc_ptr arclist[MAXARCS], *list; - if( count >= MAXARCS ) { - list = new Arc_ptr[count]; - } else { - list = arclist; - } - - Arc_ptr jarc, *last, *lptr; - for( last = list; (jarc=intersections.removearc()) != NULL; last++ ) - *last = jarc; - - if( param == 0 ) { /* sort into increasing t order */ - ArcSdirSorter sorter(*this); - sorter.qsort( list, count ); - - //::qsort ((void *)list, count, sizeof(Arc_ptr), (cmpfunc)compare_s); - for( lptr=list; lptrhead()[0] <= value) && ((*lptr)->tail()[0] <= value) ) - left.addarc( *lptr ); - else - right.addarc( *lptr ); - } - } else { /* sort into decreasing s order */ - ArcTdirSorter sorter(*this); - sorter.qsort( list, count ); - //::qsort ((void *)list, count, sizeof(Arc_ptr), (cmpfunc)compare_t); - for( lptr=list; lptrhead()[1] <= value) && ((*lptr)->tail()[1] <= value) ) - left.addarc( *lptr ); - else - right.addarc( *lptr ); - } - } - - if( list != arclist ) delete[] list; - unknown.adopt(); -} - - -void -Subdivider::check_s( Arc_ptr jarc1, Arc_ptr jarc2 ) -{ - assert( jarc1->check( ) != 0 ); - assert( jarc2->check( ) != 0 ); - assert( jarc1->next->check( ) != 0 ); - assert( jarc2->next->check( ) != 0 ); - assert( jarc1 != jarc2 ); - - /* XXX - if these assertions fail, it is due to user error or - undersampling */ - if( ! ( jarc1->tail()[0] < (jarc1)->head()[0] ) ) { -#ifndef NDEBUG - dprintf( "s difference %f\n", (jarc1)->tail()[0] - (jarc1)->head()[0] ); -#endif - ::mylongjmp( jumpbuffer, 28 ); - } - - if( ! ( jarc2->tail()[0] > (jarc2)->head()[0] ) ) { -#ifndef NDEBUG - dprintf( "s difference %f\n", (jarc2)->tail()[0] - (jarc2)->head()[0] ); -#endif - ::mylongjmp( jumpbuffer, 28 ); - } -} - -inline void -Subdivider::link( Arc_ptr jarc1, Arc_ptr jarc2, Arc_ptr up, Arc_ptr down ) -{ - up->nuid = down->nuid = 0; // XXX - - up->next = jarc2; - down->next = jarc1; - up->prev = jarc1->prev; - down->prev = jarc2->prev; - - down->next->prev = down; - up->next->prev = up; - down->prev->next = down; - up->prev->next = up; -} - -inline void -Subdivider::simple_link( Arc_ptr jarc1, Arc_ptr jarc2 ) -{ - Arc_ptr tmp = jarc2->prev; - jarc2->prev = jarc1->prev; - jarc1->prev = tmp; - jarc2->prev->next = jarc2; - jarc1->prev->next = jarc1; -} - - -/*---------------------------------------------------------------------------- - * join - add a pair of oppositely directed jordan arcs between two arcs - *---------------------------------------------------------------------------- - */ - -void -Subdivider::join_s( Bin& left, Bin& right, Arc_ptr jarc1, Arc_ptr jarc2 ) -{ - assert( jarc1->check( ) != 0); - assert( jarc2->check( ) != 0); - assert( jarc1 != jarc2 ); - - if( ! jarc1->getitail() ) - jarc1 = jarc1->next; - - if( ! jarc2->getitail() ) - jarc2 = jarc2->next; - - REAL s = jarc1->tail()[0]; - REAL t1 = jarc1->tail()[1]; - REAL t2 = jarc2->tail()[1]; - - if( t1 == t2 ) { - simple_link( jarc1, jarc2 ); - } else { - Arc_ptr newright = new(arcpool) Arc( arc_right, 0 ); - Arc_ptr newleft = new(arcpool) Arc( arc_left, 0 ); - assert( t1 < t2 ); - if( isBezierArcType() ) { - arctessellator.bezier( newright, s, s, t1, t2 ); - arctessellator.bezier( newleft, s, s, t2, t1 ); - } else { - arctessellator.pwl_right( newright, s, t1, t2, stepsizes[0] ); - arctessellator.pwl_left( newleft, s, t2, t1, stepsizes[2] ); - } - link( jarc1, jarc2, newright, newleft ); - left.addarc( newright ); - right.addarc( newleft ); - } - - assert( jarc1->check( ) != 0 ); - assert( jarc2->check( ) != 0 ); - assert( jarc1->next->check( ) != 0); - assert( jarc2->next->check( ) != 0); -} - -void -Subdivider::check_t( Arc_ptr jarc1, Arc_ptr jarc2 ) -{ - assert( jarc1->check( ) != 0 ); - assert( jarc2->check( ) != 0 ); - assert( jarc1->next->check( ) != 0 ); - assert( jarc2->next->check( ) != 0 ); - assert( jarc1 != jarc2 ); - - /* XXX - if these assertions fail, it is due to user error or - undersampling */ - if( ! ( jarc1->tail()[1] < (jarc1)->head()[1] ) ) { -#ifndef NDEBUG - dprintf( "t difference %f\n", jarc1->tail()[1] - (jarc1)->head()[1] ); -#endif - ::mylongjmp( jumpbuffer, 28 ); - } - - if( ! ( jarc2->tail()[1] > (jarc2)->head()[1] ) ) { -#ifndef NDEBUG - dprintf( "t difference %f\n", jarc2->tail()[1] - (jarc2)->head()[1] ); -#endif - ::mylongjmp( jumpbuffer, 28 ); - } -} - -/*---------------------------------------------------------------------------- - * join_t - add a pair of oppositely directed jordan arcs between two arcs - *---------------------------------------------------------------------------- - */ - -void -Subdivider::join_t( Bin& bottom, Bin& top, Arc_ptr jarc1, Arc_ptr jarc2 ) -{ - assert( jarc1->check( ) != 0 ); - assert( jarc2->check( ) != 0 ); - assert( jarc1->next->check( ) != 0 ); - assert( jarc2->next->check( ) != 0 ); - assert( jarc1 != jarc2 ); - - if( ! jarc1->getitail() ) - jarc1 = jarc1->next; - - if( ! jarc2->getitail() ) - jarc2 = jarc2->next; - - REAL s1 = jarc1->tail()[0]; - REAL s2 = jarc2->tail()[0]; - REAL t = jarc1->tail()[1]; - - if( s1 == s2 ) { - simple_link( jarc1, jarc2 ); - } else { - Arc_ptr newtop = new(arcpool) Arc( arc_top, 0 ); - Arc_ptr newbot = new(arcpool) Arc( arc_bottom, 0 ); - assert( s1 > s2 ); - if( isBezierArcType() ) { - arctessellator.bezier( newtop, s1, s2, t, t ); - arctessellator.bezier( newbot, s2, s1, t, t ); - } else { - arctessellator.pwl_top( newtop, t, s1, s2, stepsizes[1] ); - arctessellator.pwl_bottom( newbot, t, s2, s1, stepsizes[3] ); - } - link( jarc1, jarc2, newtop, newbot ); - bottom.addarc( newtop ); - top.addarc( newbot ); - } - - assert( jarc1->check( ) != 0 ); - assert( jarc2->check( ) != 0 ); - assert( jarc1->next->check( ) != 0 ); - assert( jarc2->next->check( ) != 0 ); -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/subdivider.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/subdivider.cc deleted file mode 100644 index dd3c7c959..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/subdivider.cc +++ /dev/null @@ -1,912 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * subdivider.cxx - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/subdivider.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "subdivider.h" -#include "arc.h" -#include "bezierarc.h" -#include "bin.h" -#include "renderhints.h" -#include "backend.h" -#include "mapdesc.h" -#include "quilt.h" -#include "patchlist.h" -#include "patch.h" -#include "nurbsconsts.h" -#include "trimvertpool.h" -#include "simplemath.h" - -#include "polyUtil.h" //for function area() - -//#define PARTITION_TEST -#ifdef PARTITION_TEST -#include "partitionY.h" -#include "monoTriangulation.h" -#include "dataTransform.h" -#include "monoChain.h" - -#endif - - -#define OPTIMIZE_UNTRIMED_CASE - - -Bin* -Subdivider::makePatchBoundary( const REAL *from, const REAL *to ) -{ - Bin* ret = new Bin(); - REAL smin = from[0]; - REAL smax = to[0]; - REAL tmin = from[1]; - REAL tmax = to[1]; - - pjarc = 0; - - Arc_ptr jarc = new(arcpool) Arc( arc_bottom, 0 ); - arctessellator.bezier( jarc, smin, smax, tmin, tmin ); - ret->addarc( jarc ); - pjarc = jarc->append( pjarc ); - - jarc = new(arcpool) Arc( arc_right, 0 ); - arctessellator.bezier( jarc, smax, smax, tmin, tmax ); - ret->addarc( jarc ); - pjarc = jarc->append( pjarc ); - - jarc = new(arcpool) Arc( arc_top, 0 ); - arctessellator.bezier( jarc, smax, smin, tmax, tmax ); - ret->addarc( jarc ); - pjarc = jarc->append( pjarc ); - - jarc = new(arcpool) Arc( arc_left, 0 ); - arctessellator.bezier( jarc, smin, smin, tmax, tmin ); - ret->addarc( jarc ); - jarc->append( pjarc ); - - assert( jarc->check() != 0 ); - return ret; -} - -/*--------------------------------------------------------------------------- - * Subdivider - construct a subdivider - *--------------------------------------------------------------------------- - */ - -Subdivider::Subdivider( Renderhints& r, Backend& b ) - : arcpool( sizeof( Arc), 1, "arcpool" ), - bezierarcpool( sizeof( BezierArc ), 1, "Bezarcpool" ), - pwlarcpool( sizeof( PwlArc ), 1, "Pwlarcpool" ), - renderhints( r ), - arctessellator( trimvertexpool, pwlarcpool ), - backend( b ), - slicer( b ) -{ -} - -void -Subdivider::setJumpbuffer( JumpBuffer *j ) -{ - jumpbuffer = j; -} - -/*--------------------------------------------------------------------------- - * clear - reset all state after possible error condition - *--------------------------------------------------------------------------- - */ - -void -Subdivider::clear( void ) -{ - trimvertexpool.clear(); - arcpool.clear(); - pwlarcpool.clear(); - bezierarcpool.clear(); -} - -/*--------------------------------------------------------------------------- - * ~Subdivider - destroy a subdivider - *--------------------------------------------------------------------------- - */ - -Subdivider::~Subdivider( void ) -{ -} - -/*--------------------------------------------------------------------------- - * addArc - add a bezier arc to a trim loop and to a bin - *--------------------------------------------------------------------------- - */ -void -Subdivider::addArc( REAL *cpts, Quilt *quilt, long _nuid ) -{ - BezierArc *bezierArc = new(bezierarcpool) BezierArc; - Arc *jarc = new(arcpool) Arc( arc_none, _nuid ); - jarc->pwlArc = 0; - jarc->bezierArc = bezierArc; - bezierArc->order = quilt->qspec->order; - bezierArc->stride = quilt->qspec->stride; - bezierArc->mapdesc = quilt->mapdesc; - bezierArc->cpts = cpts; - initialbin.addarc( jarc ); - pjarc = jarc->append( pjarc ); -} - -/*--------------------------------------------------------------------------- - * addArc - add a pwl arc to a trim loop and to a bin - *--------------------------------------------------------------------------- - */ - -void -Subdivider::addArc( int npts, TrimVertex *pts, long _nuid ) -{ - Arc *jarc = new(arcpool) Arc( arc_none, _nuid ); - jarc->pwlArc = new(pwlarcpool) PwlArc( npts, pts ); - initialbin.addarc( jarc ); - pjarc = jarc->append( pjarc ); -} - -void -Subdivider::beginQuilts( void ) -{ - qlist = 0; -} - -void -Subdivider::addQuilt( Quilt *quilt ) -{ - quilt->next = qlist; - qlist = quilt; -} - -/*--------------------------------------------------------------------------- - * drawSurfaces - main entry point for surface tessellation - *--------------------------------------------------------------------------- - */ - -void -Subdivider::drawSurfaces( long nuid ) -{ - renderhints.init( ); - - if (qlist == NULL) - { - //initialbin could be nonempty due to some errors - freejarcs(initialbin); - return; - } - - for( Quilt *q = qlist; q; q = q->next ) { - if( q->isCulled( ) == CULL_TRIVIAL_REJECT ) { - freejarcs( initialbin ); - return; - } - } - - - REAL from[2], to[2]; - qlist->getRange( from, to, spbrkpts, tpbrkpts ); -#ifdef OPTIMIZE_UNTRIMED_CASE - //perform optimization only when the samplng method is - //DOMAIN_DISTANCE and the display methdo is either - //fill or outline_polygon. - int optimize = (is_domain_distance_sampling && (renderhints.display_method != N_OUTLINE_PATCH)); -#endif - - if( ! initialbin.isnonempty() ) { -#ifdef OPTIMIZE_UNTRIMED_CASE - if(! optimize ) - { - - makeBorderTrim( from, to ); - } -#else - makeBorderTrim( from, to ); -#endif - } else { - REAL rate[2]; - qlist->findRates( spbrkpts, tpbrkpts, rate ); - - if( decompose( initialbin, min(rate[0], rate[1]) ) ) - mylongjmp( jumpbuffer, 31 ); - } - - backend.bgnsurf( renderhints.wiretris, renderhints.wirequads, nuid ); - -#ifdef PARTITION_TEST - if( initialbin.isnonempty() && spbrkpts.end-2 == spbrkpts.start && - tpbrkpts.end-2 == tpbrkpts.start) -{ - for(int i=spbrkpts.start; idownloadAll(pta, ptb, backend); - - directedLine *poly; - - { - - poly = bin_to_DLineLoops(initialbin); - - poly=poly->deleteDegenerateLinesAllPolygons(); - - sampledLine* retSampledLines; -//printf("before MC_partition\n"); - poly = MC_partitionY(poly, &retSampledLines); -//printf("after MC_partition\n"); - - } - - - { - primStream pStream(5000,5000); - directedLine* temp; - - for(temp=poly; temp != NULL; temp=temp->getNextPolygon()) - - monoTriangulation(temp, &pStream); - - slicer.evalStream(&pStream); - - } - //need to clean up space - } - } - freejarcs( initialbin ); - backend.endsurf(); - return; - - /* - printf("num_polygons=%i\n", poly->numPolygons()); - printf("num_edges=%i\n", poly->numEdgesAllPolygons()); - poly->writeAllPolygons("zloutputFile"); - return; - { - primStream pStream(20,20); - for(directedLine* tempD = poly; tempD != NULL; tempD = tempD->getNextPolygon()) - monoTriangulation(tempD, &pStream); - } - return; - */ -} -#endif //PARTITION_TEST - - -#ifdef OPTIMIZE_UNTRIMED_CASE - if( (!initialbin.isnonempty()) && optimize ) - { - int i,j; - int num_u_steps; - int num_v_steps; - for(i=spbrkpts.start; idownloadAll(pta, ptb, backend); - - num_u_steps = (int) (domain_distance_u_rate * (ptb[0]-pta[0])); - num_v_steps = (int) (domain_distance_v_rate * (ptb[1]-pta[1])); - - if(num_u_steps <= 0) num_u_steps = 1; - if(num_v_steps <= 0) num_v_steps = 1; - - backend.surfgrid(pta[0], ptb[0], num_u_steps, - ptb[1], pta[1], num_v_steps); - backend.surfmesh(0,0,num_u_steps,num_v_steps); - - - - continue; - /* the following is left for reference purpose, don't delete - { - Bin* tempSource; - Patchlist patchlist(qlist, pta, ptb); - patchlist.getstepsize(); - - tempSource=makePatchBoundary(pta, ptb); - - tessellation(*tempSource, patchlist); - - render(*tempSource); - delete tempSource; - } - */ - } - } - } - else - subdivideInS( initialbin ); -#else - - subdivideInS( initialbin ); -#endif - - backend.endsurf(); - -} - -void -Subdivider::subdivideInS( Bin& source ) -{ - if( renderhints.display_method == N_OUTLINE_PARAM ) { - outline( source ); - freejarcs( source ); - } else { - setArcTypeBezier(); - setNonDegenerate(); - splitInS( source, spbrkpts.start, spbrkpts.end ); - } -} - - -/*--------------------------------------------------------------------------- - * splitInS - split a patch and a bin by an isoparametric line - *--------------------------------------------------------------------------- - */ - -void -Subdivider::splitInS( Bin& source, int start, int end ) -{ - if( source.isnonempty() ) { - if( start != end ) { - int i = start + (end - start) / 2; - Bin left, right; - split( source, left, right, 0, spbrkpts.pts[i] ); - splitInS( left, start, i ); - splitInS( right, i+1, end ); - } else { - if( start == spbrkpts.start || start == spbrkpts.end ) { - freejarcs( source ); - } else if( renderhints.display_method == N_OUTLINE_PARAM_S ) { - outline( source ); - freejarcs( source ); - } else { - setArcTypeBezier(); - setNonDegenerate(); - s_index = start; - splitInT( source, tpbrkpts.start, tpbrkpts.end ); - } - } - } -} - -/*--------------------------------------------------------------------------- - * splitInT - split a patch and a bin by an isoparametric line - *--------------------------------------------------------------------------- - */ - -void -Subdivider::splitInT( Bin& source, int start, int end ) -{ - if( source.isnonempty() ) { - if( start != end ) { - int i = start + (end - start) / 2; - Bin left, right; - split( source, left, right, 1, tpbrkpts.pts[i] ); - splitInT( left, start, i ); - splitInT( right, i+1, end ); - } else { - if( start == tpbrkpts.start || start == tpbrkpts.end ) { - freejarcs( source ); - } else if( renderhints.display_method == N_OUTLINE_PARAM_ST ) { - outline( source ); - freejarcs( source ); - } else { - t_index = start; - setArcTypeBezier(); - setDegenerate(); - - REAL pta[2], ptb[2]; - pta[0] = spbrkpts.pts[s_index-1]; - pta[1] = tpbrkpts.pts[t_index-1]; - - ptb[0] = spbrkpts.pts[s_index]; - ptb[1] = tpbrkpts.pts[t_index]; - qlist->downloadAll( pta, ptb, backend ); - - Patchlist patchlist( qlist, pta, ptb ); -/* -printf("-------samplingSplit-----\n"); -source.show("samplingSplit source"); -*/ - samplingSplit( source, patchlist, renderhints.maxsubdivisions, 0 ); - setNonDegenerate(); - setArcTypeBezier(); - } - } - } -} - -/*-------------------------------------------------------------------------- - * samplingSplit - recursively subdivide patch, cull check each subpatch - *-------------------------------------------------------------------------- - */ - -void -Subdivider::samplingSplit( - Bin& source, - Patchlist& patchlist, - int subdivisions, - int param ) -{ - if( ! source.isnonempty() ) return; - - if( patchlist.cullCheck() == CULL_TRIVIAL_REJECT ) { - freejarcs( source ); - return; - } - - patchlist.getstepsize(); - - if( renderhints.display_method == N_OUTLINE_PATCH ) { - tessellation( source, patchlist ); - outline( source ); - freejarcs( source ); - return; - } - - //patchlist.clamp(); - - tessellation( source, patchlist ); - - if( patchlist.needsSamplingSubdivision() && (subdivisions > 0) ) { - if( ! patchlist.needsSubdivision( 0 ) ) - param = 1; - else if( ! patchlist.needsSubdivision( 1 ) ) - param = 0; - else - param = 1 - param; - - Bin left, right; - REAL mid = ( patchlist.pspec[param].range[0] + - patchlist.pspec[param].range[1] ) * 0.5; - split( source, left, right, param, mid ); - Patchlist subpatchlist( patchlist, param, mid ); - samplingSplit( left, subpatchlist, subdivisions-1, param ); - samplingSplit( right, patchlist, subdivisions-1, param ); - } else { - setArcTypePwl(); - setDegenerate(); - nonSamplingSplit( source, patchlist, subdivisions, param ); - setDegenerate(); - setArcTypeBezier(); - } -} - -void -Subdivider::nonSamplingSplit( - Bin& source, - Patchlist& patchlist, - int subdivisions, - int param ) -{ - if( patchlist.needsNonSamplingSubdivision() && (subdivisions > 0) ) { - param = 1 - param; - - Bin left, right; - REAL mid = ( patchlist.pspec[param].range[0] + - patchlist.pspec[param].range[1] ) * 0.5; - split( source, left, right, param, mid ); - Patchlist subpatchlist( patchlist, param, mid ); - if( left.isnonempty() ) - if( subpatchlist.cullCheck() == CULL_TRIVIAL_REJECT ) - freejarcs( left ); - else - nonSamplingSplit( left, subpatchlist, subdivisions-1, param ); - if( right.isnonempty() ) - if( patchlist.cullCheck() == CULL_TRIVIAL_REJECT ) - freejarcs( right ); - else - nonSamplingSplit( right, patchlist, subdivisions-1, param ); - - } else { - // make bbox calls - patchlist.bbox(); - backend.patch( patchlist.pspec[0].range[0], patchlist.pspec[0].range[1], - patchlist.pspec[1].range[0], patchlist.pspec[1].range[1] ); - - if( renderhints.display_method == N_OUTLINE_SUBDIV ) { - outline( source ); - freejarcs( source ); - } else { - setArcTypePwl(); - setDegenerate(); - findIrregularS( source ); - monosplitInS( source, smbrkpts.start, smbrkpts.end ); - } - } -} - -/*-------------------------------------------------------------------------- - * tessellation - set tessellation of interior and boundary of patch - *-------------------------------------------------------------------------- - */ - -void -Subdivider::tessellation( Bin& bin, Patchlist &patchlist ) -{ - // tessellate unsampled trim curves - tessellate( bin, patchlist.pspec[1].sidestep[1], patchlist.pspec[0].sidestep[1], - patchlist.pspec[1].sidestep[0], patchlist.pspec[0].sidestep[0] ); - - // set interior sampling rates - slicer.setstriptessellation( patchlist.pspec[0].stepsize, patchlist.pspec[1].stepsize ); - - //added by zl: set the order which will be used in slicer.c++ - slicer.set_ulinear( (patchlist.get_uorder() == 2)); - slicer.set_vlinear( (patchlist.get_vorder() == 2)); - - // set boundary sampling rates - stepsizes[0] = patchlist.pspec[1].stepsize; - stepsizes[1] = patchlist.pspec[0].stepsize; - stepsizes[2] = patchlist.pspec[1].stepsize; - stepsizes[3] = patchlist.pspec[0].stepsize; -} - -/*--------------------------------------------------------------------------- - * monosplitInS - split a patch and a bin by an isoparametric line - *--------------------------------------------------------------------------- - */ - -void -Subdivider::monosplitInS( Bin& source, int start, int end ) -{ - if( source.isnonempty() ) { - if( start != end ) { - int i = start + (end - start) / 2; - Bin left, right; - split( source, left, right, 0, smbrkpts.pts[i] ); - monosplitInS( left, start, i ); - monosplitInS( right, i+1, end ); - } else { - if( renderhints.display_method == N_OUTLINE_SUBDIV_S ) { - outline( source ); - freejarcs( source ); - } else { - setArcTypePwl(); - setDegenerate(); - findIrregularT( source ); - monosplitInT( source, tmbrkpts.start, tmbrkpts.end ); - } - } - } -} - -/*--------------------------------------------------------------------------- - * monosplitInT - split a patch and a bin by an isoparametric line - *--------------------------------------------------------------------------- - */ - -void -Subdivider::monosplitInT( Bin& source, int start, int end ) -{ - if( source.isnonempty() ) { - if( start != end ) { - int i = start + (end - start) / 2; - Bin left, right; - split( source, left, right, 1, tmbrkpts.pts[i] ); - monosplitInT( left, start, i ); - monosplitInT( right, i+1, end ); - } else { - if( renderhints.display_method == N_OUTLINE_SUBDIV_ST ) { - outline( source ); - freejarcs( source ); - } else { -/* -printf("*******render\n"); -source.show("source\n"); -*/ - render( source ); - freejarcs( source ); - } - } - } -} - - -/*---------------------------------------------------------------------------- - * findIrregularS - determine points of non-monotonicity is s direction - *---------------------------------------------------------------------------- - */ - -void -Subdivider::findIrregularS( Bin& bin ) -{ - assert( bin.firstarc()->check() != 0 ); - - smbrkpts.grow( bin.numarcs() ); - - for( Arc_ptr jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - REAL *a = jarc->prev->tail(); - REAL *b = jarc->tail(); - REAL *c = jarc->head(); - - if( b[1] == a[1] && b[1] == c[1] ) continue; - - //corrected code - if((b[1]<=a[1] && b[1] <= c[1]) || - (b[1]>=a[1] && b[1] >= c[1])) - { - //each arc (jarc, jarc->prev, jarc->next) is a - //monotone arc consisting of multiple line segements. - //it may happen that jarc->prev and jarc->next are the same, - //that is, jarc->prev and jarc form a closed loop. - //In such case, a and c will be the same. - if(a[0]==c[0] && a[1] == c[1]) - { - if(jarc->pwlArc->npts >2) - { - c = jarc->pwlArc->pts[jarc->pwlArc->npts-2].param; - } - else - { - assert(jarc->prev->pwlArc->npts>2); - a = jarc->prev->pwlArc->pts[jarc->prev->pwlArc->npts-2].param; - } - - } - if(area(a,b,c) < 0) - { - smbrkpts.add(b[0]); - } - - } - - /* old code, - if( b[1] <= a[1] && b[1] <= c[1] ) { - if( ! ccwTurn_tr( jarc->prev, jarc ) ) - smbrkpts.add( b[0] ); - } else if( b[1] >= a[1] && b[1] >= c[1] ) { - if( ! ccwTurn_tl( jarc->prev, jarc ) ) - smbrkpts.add( b[0] ); - } - */ - - } - - smbrkpts.filter(); -} - -/*---------------------------------------------------------------------------- - * findIrregularT - determine points of non-monotonicity in t direction - * where one arc is parallel to the s axis. - *---------------------------------------------------------------------------- - */ - -void -Subdivider::findIrregularT( Bin& bin ) -{ - assert( bin.firstarc()->check() != 0 ); - - tmbrkpts.grow( bin.numarcs() ); - - for( Arc_ptr jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - REAL *a = jarc->prev->tail(); - REAL *b = jarc->tail(); - REAL *c = jarc->head(); - - if( b[0] == a[0] && b[0] == c[0] ) continue; - - if( b[0] <= a[0] && b[0] <= c[0] ) { - if( a[1] != b[1] && b[1] != c[1] ) continue; - if( ! ccwTurn_sr( jarc->prev, jarc ) ) - tmbrkpts.add( b[1] ); - } else if ( b[0] >= a[0] && b[0] >= c[0] ) { - if( a[1] != b[1] && b[1] != c[1] ) continue; - if( ! ccwTurn_sl( jarc->prev, jarc ) ) - tmbrkpts.add( b[1] ); - } - } - tmbrkpts.filter( ); -} - -/*----------------------------------------------------------------------------- - * makeBorderTrim - if no user input trimming data then create - * a trimming curve around the boundaries of the Quilt. The curve consists of - * four Jordan arcs, one for each side of the Quilt, connected, of course, - * head to tail. - *----------------------------------------------------------------------------- - */ - -void -Subdivider::makeBorderTrim( const REAL *from, const REAL *to ) -{ - REAL smin = from[0]; - REAL smax = to[0]; - REAL tmin = from[1]; - REAL tmax = to[1]; - - pjarc = 0; - - Arc_ptr jarc = new(arcpool) Arc( arc_bottom, 0 ); - arctessellator.bezier( jarc, smin, smax, tmin, tmin ); - initialbin.addarc( jarc ); - pjarc = jarc->append( pjarc ); - - jarc = new(arcpool) Arc( arc_right, 0 ); - arctessellator.bezier( jarc, smax, smax, tmin, tmax ); - initialbin.addarc( jarc ); - pjarc = jarc->append( pjarc ); - - jarc = new(arcpool) Arc( arc_top, 0 ); - arctessellator.bezier( jarc, smax, smin, tmax, tmax ); - initialbin.addarc( jarc ); - pjarc = jarc->append( pjarc ); - - jarc = new(arcpool) Arc( arc_left, 0 ); - arctessellator.bezier( jarc, smin, smin, tmax, tmin ); - initialbin.addarc( jarc ); - jarc->append( pjarc ); - - assert( jarc->check() != 0 ); -} - -/*---------------------------------------------------------------------------- - * render - renders all monotone regions in a bin and frees the bin - *---------------------------------------------------------------------------- - */ - -void -Subdivider::render( Bin& bin ) -{ - bin.markall(); - -#ifdef N_ISOLINE_S - slicer.setisolines( ( renderhints.display_method == N_ISOLINE_S ) ? 1 : 0 ); -#else - slicer.setisolines( 0 ); -#endif - - for( Arc_ptr jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - if( jarc->ismarked() ) { - assert( jarc->check( ) != 0 ); - Arc_ptr jarchead = jarc; - do { - jarc->clearmark(); - jarc = jarc->next; - } while (jarc != jarchead); - slicer.slice( jarc ); - } - } -} - -/*--------------------------------------------------------------------------- - * outline - render the trimmed patch by outlining the boundary - *--------------------------------------------------------------------------- - */ - -void -Subdivider::outline( Bin& bin ) -{ - bin.markall(); - for( Arc_ptr jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - if( jarc->ismarked() ) { - assert( jarc->check( ) != 0 ); - Arc_ptr jarchead = jarc; - do { - slicer.outline( jarc ); - jarc->clearmark(); - jarc = jarc->prev; - } while (jarc != jarchead); - } - } -} - -/*--------------------------------------------------------------------------- - * freejarcs - free all arcs in a bin - *--------------------------------------------------------------------------- - */ - -void -Subdivider::freejarcs( Bin& bin ) -{ - bin.adopt(); /* XXX - should not be necessary */ - - Arc_ptr jarc; - while( (jarc = bin.removearc()) != NULL ) { - if( jarc->pwlArc ) jarc->pwlArc->deleteMe( pwlarcpool ); jarc->pwlArc = 0; - if( jarc->bezierArc) jarc->bezierArc->deleteMe( bezierarcpool ); jarc->bezierArc = 0; - jarc->deleteMe( arcpool ); - } -} - -/*---------------------------------------------------------------------------- - * tessellate - tessellate all Bezier arcs in a bin - * 1) only accepts linear Bezier arcs as input - * 2) the Bezier arcs are stored in the pwlArc structure - * 3) only vertical or horizontal lines work - * -- should - * 1) represent Bezier arcs in BezierArc structure - * (this requires a multitude of changes to the code) - * 2) accept high degree Bezier arcs (hard) - * 3) map the curve onto the surface to determine tessellation - * 4) work for curves of arbitrary geometry - *---------------------------------------------------------------------------- - */ - - -void -Subdivider::tessellate( Bin& bin, REAL rrate, REAL trate, REAL lrate, REAL brate ) -{ - for( Arc_ptr jarc=bin.firstarc(); jarc; jarc=bin.nextarc() ) { - if( jarc->isbezier( ) ) { - assert( jarc->pwlArc->npts == 2 ); - TrimVertex *pts = jarc->pwlArc->pts; - REAL s1 = pts[0].param[0]; - REAL t1 = pts[0].param[1]; - REAL s2 = pts[1].param[0]; - REAL t2 = pts[1].param[1]; - - jarc->pwlArc->deleteMe( pwlarcpool ); jarc->pwlArc = 0; - - switch( jarc->getside() ) { - case arc_left: - assert( s1 == s2 ); - arctessellator.pwl_left( jarc, s1, t1, t2, lrate ); - break; - case arc_right: - assert( s1 == s2 ); - arctessellator.pwl_right( jarc, s1, t1, t2, rrate ); - break; - case arc_top: - assert( t1 == t2 ); - arctessellator.pwl_top( jarc, t1, s1, s2, trate ); - break; - case arc_bottom: - assert( t1 == t2 ); - arctessellator.pwl_bottom( jarc, t1, s1, s2, brate ); - break; - case arc_none: - (void) abort(); - break; - } - assert( ! jarc->isbezier() ); - assert( jarc->check() != 0 ); - } - } -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/subdivider.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/subdivider.h deleted file mode 100644 index 80bd59edb..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/subdivider.h +++ /dev/null @@ -1,206 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * subdivider.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/subdivider.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __glusubdivider_h_ -#define __glusubdivider_h_ - -#include "mysetjmp.h" -#include "bin.h" -#include "flist.h" -#include "slicer.h" -#include "arctess.h" -#include "trimvertex.h" -#include "trimvertpool.h" - -class Arc; -class Pool; -class Renderhints; -class Quilt; -class Patchlist; -class Curvelist; -class JumpBuffer; - -class Subdivider { -public: - Subdivider( Renderhints&, Backend& ); - ~Subdivider( void ); - void clear( void ); - - void beginTrims( void ) {} - void beginLoop( void ); - void addArc( REAL *, Quilt *, long ); - void addArc( int, TrimVertex *, long ); - void endLoop( void ) {} - void endTrims( void ) {} - - void beginQuilts( void ); - void addQuilt( Quilt * ); - void endQuilts( void ) {} - - void drawCurves( void ); - void drawSurfaces( long ); - - int ccwTurn_sl( Arc_ptr, Arc_ptr ); - int ccwTurn_sr( Arc_ptr , Arc_ptr ); - int ccwTurn_tl( Arc_ptr , Arc_ptr ); - int ccwTurn_tr( Arc_ptr , Arc_ptr ); - - void setJumpbuffer( JumpBuffer * ); - - void set_domain_distance_u_rate(REAL u_rate) - { - domain_distance_u_rate = u_rate; - } - void set_domain_distance_v_rate(REAL v_rate) - { - domain_distance_v_rate = v_rate; - } - void set_is_domain_distance_sampling(int flag) - { - is_domain_distance_sampling = flag; - } - -private: - void classify_headonleft_s( Bin &, Bin &, Bin &, REAL ); - void classify_tailonleft_s( Bin &, Bin &, Bin &, REAL ); - void classify_headonright_s( Bin &, Bin &, Bin &, REAL ); - void classify_tailonright_s( Bin &, Bin &, Bin &, REAL ); - void classify_headonleft_t( Bin &, Bin &, Bin &, REAL ); - void classify_tailonleft_t( Bin &, Bin &, Bin &, REAL ); - void classify_headonright_t( Bin &, Bin &, Bin &, REAL ); - void classify_tailonright_t( Bin &, Bin &, Bin &, REAL ); - - enum dir { down, same, up, none }; - void tessellate( Arc_ptr, REAL ); - void monotonize( Arc_ptr , Bin & ); - int isMonotone( Arc_ptr ); - int decompose( Bin &, REAL ); - - - Slicer slicer; - ArcTessellator arctessellator; - Pool arcpool; - Pool bezierarcpool; - Pool pwlarcpool; - TrimVertexPool trimvertexpool; - - JumpBuffer* jumpbuffer; - Renderhints& renderhints; - Backend& backend; - - Bin initialbin; - Arc_ptr pjarc; - int s_index; - int t_index; - Quilt * qlist; - Flist spbrkpts; - Flist tpbrkpts; - Flist smbrkpts; - Flist tmbrkpts; - REAL stepsizes[4]; - int showDegenerate; - int isArcTypeBezier; - - void samplingSplit( Curvelist&, int ); - - void subdivideInS( Bin& ); - void splitInS( Bin&, int, int ); - void splitInT( Bin&, int, int ); - void samplingSplit( Bin&, Patchlist&, int, int ); - void nonSamplingSplit( Bin&, Patchlist&, int, int ); - void tessellation( Bin&, Patchlist& ); - void monosplitInS( Bin&, int, int ); - void monosplitInT( Bin&, int, int ); - - void outline( Bin & ); - void freejarcs( Bin & ); - void render( Bin & ); - void split( Bin &, Bin &, Bin &, int, REAL ); - void tessellate( Bin &, REAL, REAL, REAL, REAL ); - - inline void setDegenerate( void ) { showDegenerate = 1; } - inline void setNonDegenerate( void ) { showDegenerate = 0; } - inline int showingDegenerate( void ) { return showDegenerate; } - inline void setArcTypeBezier( void ) { isArcTypeBezier = 1; } - inline void setArcTypePwl( void ) { isArcTypeBezier = 0; } - inline int isBezierArcType( void ) { return isArcTypeBezier; } - - void makeBorderTrim( const REAL *, const REAL * ); - void split( Bin &, int, const REAL *, int, int ); - void partition( Bin &, Bin &, Bin &, Bin &, Bin &, int, REAL ); - void findIrregularS( Bin & ); - void findIrregularT( Bin & ); - - - inline int bbox( TrimVertex *, TrimVertex *, TrimVertex *, int ); - static int bbox( REAL, REAL, REAL, REAL, REAL, REAL ); - static int ccw( TrimVertex *, TrimVertex *, TrimVertex * ); - void join_s( Bin &, Bin &, Arc_ptr, Arc_ptr ); - void join_t( Bin &, Bin &, Arc_ptr , Arc_ptr ); - int arc_split( Arc_ptr , int, REAL, int ); - void check_s( Arc_ptr , Arc_ptr ); - void check_t( Arc_ptr , Arc_ptr ); - inline void link( Arc_ptr , Arc_ptr , Arc_ptr , Arc_ptr ); - inline void simple_link( Arc_ptr , Arc_ptr ); - - Bin* makePatchBoundary( const REAL *from, const REAL *to ); - - /*in domain distance method, the tessellation is controled by two numbers: - *GLU_U_STEP: number of u-segments per unit u length of domain - *GLU_V_STEP: number of v-segments per unit v length of domain - *These two numbers are normally stored in mapdesc->maxs(t)rate. - *I (ZL) put these two numbers here so that I can optimize the untrimmed - *case in the case of domain distance sampling. - *These two numbers are set by set_domain_distance_u_rate() and ..._v_..(). - */ - REAL domain_distance_u_rate; - REAL domain_distance_v_rate; - int is_domain_distance_sampling; -}; - -inline void -Subdivider::beginLoop( void ) -{ - pjarc = 0; -} - - -#endif /* __glusubdivider_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/tobezier.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/tobezier.cc deleted file mode 100644 index f7ff2fbe8..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/tobezier.cc +++ /dev/null @@ -1,689 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * tobezier.c++ - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/tobezier.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "mystring.h" -#include "quilt.h" -#include "knotvector.h" - -/* local type definitions */ -struct Breakpt { /* breakpoints */ - Knot value; /* value */ - int multi; /* multiplicity */ - int def; /* deficit */ -}; - -struct Knotspec { /* knotvector format */ - long order; /* order of spline */ - Knot_ptr inkbegin; /* input knot sequence */ - Knot_ptr inkend; /* location after last knot */ - Knot_ptr outkbegin; /* in-process knot subsequence */ - Knot_ptr outkend; /* location after last knot */ - Knot_ptr kleft; /* */ - Knot_ptr kright; /* */ - Knot_ptr kfirst; /* */ - Knot_ptr klast; /* */ - Knot_ptr sbegin; /* conversion factor values */ - Breakpt * bbegin; /* in-process breakpoints */ - Breakpt * bend; /* last breakpoint */ - int ncoords; /* coordinates per control point */ - int prestride; /* stride between input points */ - int poststride; /* stride between output points */ - int preoffset; /* scaled point offset */ - int postoffset; /* scaled point offset */ - int prewidth; /* width of dimension */ - int postwidth; /* width of dimension */ - int istransformed; /* was dimension transformed */ - Knotspec * next; /* next knotspec */ - Knotspec * kspectotrans; /* knotspec in transformation direction */ - - Knotspec( void ); - ~Knotspec( void ); - void factors( void ); - void insert( REAL * ); - void preselect(); - void select( void ); - void copy( INREAL *, REAL * ); - void breakpoints( void ); - void knots( void ); - void transform( REAL * ); - void showpts( REAL * ); - - void pt_io_copy( REAL *, INREAL * ); - void pt_oo_copy( REAL *, REAL * ); - void pt_oo_sum( REAL*, REAL*, REAL*, Knot, Knot ); -}; - -struct Splinespec { /* a non-uniform tensor element */ - Splinespec( int ); - ~Splinespec(void); - Knotspec *kspec; /* format of each param. dir. */ - int dim; /* domain dimension */ - REAL * outcpts; /* Bezier control points */ - - void kspecinit( Knotvector & ); - void kspecinit( Knotvector &, Knotvector & ); - void select( void ); - void layout( long ); - void setupquilt( Quilt_ptr ); - void copy( INREAL * ); - void transform( void ); -}; - -/*----------------------------------------------------------------------------- - * Quilt::toBezier - convert from NURBS to rational Bezier - *----------------------------------------------------------------------------- - */ - -void -Quilt::toBezier( - Knotvector& knotvector, /* a knot vector */ - INREAL *ctlpts, /* input contol points */ - long ncoords ) /* number of coordinates per control point */ -{ - Splinespec spline( 1 ); - spline.kspecinit( knotvector ); - spline.select(); - spline.layout( ncoords ); - spline.setupquilt( this ); - spline.copy( ctlpts ); - spline.transform(); -} - -void -Quilt::toBezier( - Knotvector& sknotvector, /* a knot vector */ - Knotvector& tknotvector, /* a knot vector */ - INREAL *ctlpts, /* input contol points */ - long ncoords ) /* number of coordinates per control point */ -{ - Splinespec spline( 2 ); - spline.kspecinit( sknotvector, tknotvector ); - spline.select(); - spline.layout( ncoords ); - spline.setupquilt( this ); - spline.copy( ctlpts ); - spline.transform(); -} -Splinespec::Splinespec( int dimen ) -{ - dim = dimen; -} - -Splinespec::~Splinespec( void ) -{ - /* Note: do NOT delete 'outcpts' here since its address (not contents) - * is copied in 'cpts' in this file in function Splinespec::setupquilt(). - * This block of memory will eventually be deleted in file quilt.c++ in - * function Quilt::deleteMe() through 'cpts' so do NOT delete it here! - */ - Knotspec *ktrav= kspec; //start at beginning of list - while (ktrav != 0) { //any items to delete? - Knotspec *deleteThis= ktrav; //remember to delete this - ktrav= ktrav->next; //go to next item if any - delete deleteThis; //delete it - } -} /* ~Splinespec() */ - -/*----------------------------------------------------------------------------- - * Splinespec::kspecinit - initialize Splinespec structure - * - * Client: Quilt::toBezier - *----------------------------------------------------------------------------- - */ - -void -Splinespec::kspecinit( Knotvector& knotvector ) -{ - kspec = new Knotspec; - kspec->inkbegin = knotvector.knotlist; - kspec->inkend = knotvector.knotlist + knotvector.knotcount; - kspec->prestride = (int) knotvector.stride; - kspec->order = knotvector.order; - kspec->next = NULL; -} - -void -Splinespec::kspecinit( Knotvector& sknotvector, Knotvector& tknotvector ) -{ - kspec = new Knotspec; - Knotspec *tkspec = new Knotspec; - - kspec->inkbegin = sknotvector.knotlist; - kspec->inkend = sknotvector.knotlist + sknotvector.knotcount; - kspec->prestride = (int) sknotvector.stride; - kspec->order = sknotvector.order; - kspec->next = tkspec; - - tkspec->inkbegin = tknotvector.knotlist; - tkspec->inkend = tknotvector.knotlist + tknotvector.knotcount; - tkspec->prestride = (int) tknotvector.stride; - tkspec->order = tknotvector.order; - tkspec->next = NULL; -} - - -/*----------------------------------------------------------------------------- - * Splinespec::select - select the subsegments to copy - * - * Client: gl_quilt_to_bezier - *----------------------------------------------------------------------------- - */ - -void -Splinespec::select( ) -{ - for( Knotspec *knotspec = kspec; knotspec; knotspec = knotspec->next ) { - knotspec->preselect(); - knotspec->select(); - } -} - -/*----------------------------------------------------------------------------- - * Splinespec::layout - - * - * Client: gl_quilt_to_bezier - *----------------------------------------------------------------------------- - */ - -void -Splinespec::layout( long ncoords ) -{ - - long stride = ncoords; - for( Knotspec *knotspec = kspec; knotspec; knotspec=knotspec->next ) { - knotspec->poststride = (int) stride; - stride *= ((knotspec->bend-knotspec->bbegin)*knotspec->order + knotspec->postoffset); - knotspec->preoffset *= knotspec->prestride; - knotspec->prewidth *= knotspec->poststride; - knotspec->postwidth *= knotspec->poststride; - knotspec->postoffset *= knotspec->poststride; - knotspec->ncoords = (int) ncoords; - } - outcpts = new REAL[stride]; - assert( outcpts != 0 ); -} - -/*----------------------------------------------------------------------------- - * Splinespec::copy - copy the control points of current subobject - * - * Client: gl_quilt_to_bezier - *----------------------------------------------------------------------------- - */ - -void -Splinespec::copy( INREAL *incpts ) -{ - kspec->copy( incpts, outcpts ); -} - -/*----------------------------------------------------------------------------- - * Splinespec::setupquilt - assign all quilt variables from knotspec - * - * Client: gl_quilt_to_bezier - *----------------------------------------------------------------------------- - */ - -void -Splinespec::setupquilt( Quilt_ptr quilt ) -{ - Quiltspec_ptr qspec = quilt->qspec; - quilt->eqspec = qspec + dim; - for( Knotspec *knotspec = kspec; knotspec; knotspec=knotspec->next, qspec++ ) { - qspec->stride = knotspec->poststride; - qspec->width = knotspec->bend - knotspec->bbegin; - qspec->order = (int) knotspec->order; - qspec->offset = knotspec->postoffset; - qspec->index = 0; - qspec->bdry[0] = (knotspec->kleft == knotspec->kfirst) ? 1 : 0; - qspec->bdry[1] = (knotspec->kright == knotspec->klast) ? 1 : 0; - qspec->breakpoints = new Knot[qspec->width+1]; - Knot_ptr k = qspec->breakpoints; - for( Breakpt *bk = knotspec->bbegin; bk <= knotspec->bend; bk++ ) - *(k++) = bk->value; - } - quilt->cpts = outcpts; - quilt->next = 0; -} - -/*----------------------------------------------------------------------------- - * Splinespec::transform - convert a spline to Bezier format - * - * Client: gl_quilt_to_bezier - *----------------------------------------------------------------------------- - */ - -void -Splinespec::transform( void ) -{ - Knotspec *knotspec; - for( knotspec = kspec; knotspec; knotspec=knotspec->next ) - knotspec->istransformed = 0; - - for( knotspec = kspec; knotspec; knotspec=knotspec->next ) { - for( Knotspec *kspec2 = kspec; kspec2; kspec2=kspec2->next ) - kspec2->kspectotrans = knotspec; - kspec->transform( outcpts ); - knotspec->istransformed = 1; - } -} - - -/*----------------------------------------------------------------------------- - * Knotspec::Knotspec - constuct a knot spec - *----------------------------------------------------------------------------- - */ - -Knotspec::Knotspec( void ) -{ - bbegin = 0; - sbegin = 0; - outkbegin = 0; -} - -/*----------------------------------------------------------------------------- - * Knotspec::copy - copy the control points along minor direction - * - * Client: Splinespec::copy - *----------------------------------------------------------------------------- - */ - -void -Knotspec::copy( INREAL *inpt, REAL *outpt ) -{ - inpt = (INREAL *) (((char *) inpt) + preoffset); - - if( next ) { - for( REAL *lpt=outpt+prewidth; outpt != lpt; outpt += poststride ) { - next->copy( inpt, outpt ); - inpt = (INREAL *) (((char *) inpt) + prestride); - } - } else { - for( REAL *lpt=outpt+prewidth; outpt != lpt; outpt += poststride ) { - pt_io_copy( outpt, inpt ); - inpt = (INREAL *) (((char *) inpt) + prestride); - } - } -} - -/*----------------------------------------------------------------------------- - * Knotspec::showpts - print out points before transformation - * - * Client: Knotspec::select - *----------------------------------------------------------------------------- - */ -void -Knotspec::showpts( REAL *outpt ) -{ - if( next ) { - for( REAL *lpt=outpt+prewidth; outpt != lpt; outpt += poststride ) - next->showpts( outpt ); - } else { - for( REAL *lpt=outpt+prewidth; outpt != lpt; outpt += poststride ) - dprintf( "show %g %g %g\n", outpt[0], outpt[1], outpt[2] ); - } -} - -/*----------------------------------------------------------------------------- - * Knotspec::factors - precompute scale factors - * - overwrites knot vector, actual new knot vector is NOT produced - * - * Client: Knotspec::select - *----------------------------------------------------------------------------- - */ - -void -Knotspec::factors( void ) -{ - Knot *mid = (outkend - 1) - order + bend->multi; - Knot_ptr fptr = sbegin; - - for( Breakpt *bpt = bend; bpt >= bbegin; bpt-- ) { - mid -= bpt->multi; // last knot less than knot to insert - int def = bpt->def - 1; // number of knots to insert - if( def <= 0 ) continue; - Knot kv = bpt->value; // knot to insert - - Knot *kf = (mid-def) + (order-1); - for( Knot *kl = kf + def; kl != kf; kl-- ) { - Knot *kh, *kt; - for( kt=kl, kh=mid; kt != kf; kh--, kt-- ) - *(fptr++) = (kv - *kh) / (*kt - *kh); - *kl = kv; - } - } -} - -/*----------------------------------------------------------------------------- - * Knotspec::insert - convert subobject in direction of kspec into Bezier - * - * Client: Knotspec::transform - *----------------------------------------------------------------------------- - */ - -void -Knotspec::insert( REAL *p ) -{ - Knot_ptr fptr = sbegin; - REAL *srcpt = p + prewidth - poststride; - REAL *dstpt = p + postwidth + postoffset - poststride; - Breakpt *bpt = bend; - - for( REAL *pend = srcpt - poststride*bpt->def; srcpt != pend; pend +=poststride ) { - REAL *p1 = srcpt; - for( REAL *p2 = srcpt-poststride; p2 != pend; p1 = p2, p2 -= poststride ) { - pt_oo_sum( p1, p1, p2, *fptr, 1.0-*fptr ); - fptr++; - } - } - - for( --bpt; bpt >= bbegin; bpt-- ) { - - for( int multi = bpt->multi; multi > 0; multi-- ) { - pt_oo_copy( dstpt, srcpt ); - dstpt -= poststride; - srcpt -= poststride; - } - - for( REAL *pend = srcpt - poststride*bpt->def; srcpt != pend; pend +=poststride, dstpt-=poststride ) { - pt_oo_copy( dstpt, srcpt ); - REAL *p1 = srcpt; - - for( REAL *p2 = srcpt-poststride; p2 != pend; p1=p2, p2 -= poststride ) { - pt_oo_sum( p1, p1, p2, *fptr, 1.0-*fptr ); - fptr++; - } - } - } -} - -/*----------------------------------------------------------------------------- - * Knotspec::preselect - initialize kspec for processing - * - * Client: Splinespec::select - *----------------------------------------------------------------------------- - */ - -void -Knotspec::preselect( void ) -{ - Knot kval; - - /* position klast after last knot of "last" breakpoint */ - for( klast = inkend - order, kval = *klast; klast != inkend; klast++ ) - if( ! identical( *klast, kval ) ) break; - - /* position kfirst after last knot of "first" breakpoint */ - for( kfirst = inkbegin+order-1, kval= *kfirst; kfirst != inkend; kfirst++ ) - if( ! identical( *kfirst, kval ) ) break; - - /* compute multiplicity of first breakpoint */ - Knot_ptr k; - for( k = kfirst - 1; k >= inkbegin; k-- ) - if( ! identical( kval, *k ) ) break; - k++; - - /* allocate space for breakpoints - - use worst case estimate on number of breakpoints */ - - bbegin = new Breakpt[(klast - kfirst)+1]; - /* record multiplicity and value of first breakpoint */ - bbegin->multi = kfirst - k; - bbegin->value = kval; - bend = bbegin; - - kleft = kright = kfirst; -} - - -/*----------------------------------------------------------------------------- - * Knotspec::select - Knotspec::select segments and precompute scale factors - * - * Client: Splinespec::select - *----------------------------------------------------------------------------- - */ - -void -Knotspec::select( void ) -{ - breakpoints(); - knots(); - factors(); - - preoffset = kleft - (inkbegin + order); - postwidth = (int)((bend - bbegin) * order); - prewidth = (int)((outkend - outkbegin) - order); - postoffset = (bbegin->def > 1) ? (bbegin->def-1) : 0; -} - -/*----------------------------------------------------------------------------- - * Knotspec::breakpoints - compute breakpoints for knotspec - * - * Client: Knotspec::select - *----------------------------------------------------------------------------- - */ - -void -Knotspec::breakpoints( void ) -{ - Breakpt *ubpt = bbegin; - Breakpt *ubend = bend; - long nfactors = 0; - - ubpt->value = ubend->value; - ubpt->multi = ubend->multi; - - kleft = kright; - - for( ; kright != klast; kright++ ) { - if ( identical(*kright,ubpt->value) ) { - (ubpt->multi)++; - } else { - ubpt->def = (int) (order - ubpt->multi); - nfactors += (ubpt->def * (ubpt->def - 1)) / 2; - (++ubpt)->value = *kright; - ubpt->multi = 1; - } - } - ubpt->def = (int) (order - ubpt->multi); - nfactors += (ubpt->def * (ubpt->def - 1)) / 2; - - bend = ubpt; - - if( nfactors ) { - sbegin = new Knot[nfactors]; - } else { - sbegin = NULL; - } -} - - -/*----------------------------------------------------------------------------- - * Knotspec::knots - copy relevant subsequence of knots into temporary area - * - * Client: Knotspec::select - *----------------------------------------------------------------------------- - */ - -void -Knotspec::knots( void ) -{ - Knot_ptr inkpt = kleft - order; - Knot_ptr inkend = kright + bend->def; - - /* allocate space for knots and factors */ - outkbegin = new Knot[inkend-inkpt]; - Knot_ptr outkpt; - for( outkpt = outkbegin; inkpt != inkend; inkpt++, outkpt++ ) - *outkpt = *inkpt; - - outkend = outkpt; -} - - -/*----------------------------------------------------------------------------- - * Knotspec::transform - convert a spline along a given direction - * - * Client: Splienspec::transform - *----------------------------------------------------------------------------- - */ - -void -Knotspec::transform( REAL *p ) -{ - if( next ) { - if( this == kspectotrans ) { - next->transform( p ); - } else { - if( istransformed ) { - p += postoffset; - for( REAL *pend = p + postwidth; p != pend; p += poststride ) - next->transform( p ); - } else { - REAL *pend = p + prewidth; - for( ; p != pend; p += poststride ) - next->transform( p ); - } - } - } else { - if( this == kspectotrans ) { - insert( p ); - } else { - if( istransformed ) { - p += postoffset; - for( REAL *pend = p + postwidth; p != pend; p += poststride ) - kspectotrans->insert( p ); - } else { - REAL *pend = p + prewidth; - for( ; p != pend; p += poststride ) - kspectotrans->insert( p ); - } - } - } -} - -/*----------------------------------------------------------------------------- - * Knotspec::~Knotspec - free space alocated for knotspec - *----------------------------------------------------------------------------- - */ - -Knotspec::~Knotspec( void ) -{ - if( bbegin ) delete[] bbegin; - if( sbegin ) delete[] sbegin; - if( outkbegin ) delete[] outkbegin; -} - - -/*----------------------------------------------------------------------------- - * pt_io_copy - make internal copy of input cntrl pt. of x coords - *----------------------------------------------------------------------------- - */ - -void -Knotspec::pt_io_copy( REAL *topt, INREAL *frompt ) -{ - switch( ncoords ) { - case 4: - topt[3] = (REAL) frompt[3]; - case 3: - topt[2] = (REAL) frompt[2]; - case 2: - topt[1] = (REAL) frompt[1]; - case 1: - topt[0] = (REAL) frompt[0]; - break; - default: { - for( int i = 0; i < ncoords; i++ ) - *topt++ = (REAL) *frompt++; - } - } -} - -/*----------------------------------------------------------------------------- - * pt_oo_copy - make internal copy of internal cntrl pt. of x coords - *----------------------------------------------------------------------------- - */ - -void -Knotspec::pt_oo_copy( REAL *topt, REAL *frompt ) -{ - switch( ncoords ) { - case 4: - topt[3] = frompt[3]; - case 3: - topt[2] = frompt[2]; - case 2: - topt[1] = frompt[1]; - case 1: - topt[0] = frompt[0]; - break; - default: - memcpy( topt, frompt, ncoords * sizeof( REAL ) ); - } -} - -/*----------------------------------------------------------------------------- - * pt_oo_sum - compute affine combination of internal cntrl pts - *----------------------------------------------------------------------------- - */ - -void -Knotspec::pt_oo_sum( REAL *x, REAL *y, REAL *z, Knot a, Knot b ) -{ - switch( ncoords ) { - case 4: - x[3] = a * y[3] + b * z[3]; - case 3: - x[2] = a * y[2] + b * z[2]; - case 2: - x[1] = a * y[1] + b * z[1]; - case 1: - x[0] = a * y[0] + b * z[0]; - break; - default: { - for( int i = 0; i < ncoords; i++ ) - *x++ = a * *y++ + b * *z++; - } - } -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimline.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimline.cc deleted file mode 100644 index 467ac5134..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimline.cc +++ /dev/null @@ -1,217 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ -/* $XFree86$ */ - -/* - * trimline.c++ - * - * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimline.cc,v 1.2 2004/04/23 18:42:55 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "trimline.h" -#include "backend.h" - -Trimline::Trimline() -{ - size = 0; pts = 0; numverts = 0; - tinterp = &t; binterp = &b; -} - -Trimline::~Trimline() -{ - if( pts ) delete[] pts; -} - -void -Trimline::init( TrimVertex *v ) -{ - reset(); - grow(1); - append(v); -} - -inline void -Trimline::grow( long npts ) -{ - if( size < npts ) { - size = 2 * npts; - if( pts ) delete[] pts; - pts = new TrimVertex_p[size]; - } -} - -inline void -Trimline::append( TrimVertex *v ) -{ - assert( numverts != size ); - pts[numverts++] = v; -} - -void -Trimline::init( long npts, Arc_ptr jarc, long last ) -{ - jarcl.init( jarc, 0, last ); - grow( npts + 2 ); -} - -inline void -Trimline::swap() -{ - TrimVertex *tmp=tinterp; - tinterp=binterp; - binterp=tmp; -} - -void -Trimline::getNextPt() -{ - *binterp = *jarcl.getnextpt(); -} - -void -Trimline::getPrevPt() -{ - *binterp = *jarcl.getprevpt(); -} - -/*---------------------------------------------------------------------- - * getNextPts - make arrays of pointers to trim points on left and right - * hulls of trim strip. - *---------------------------------------------------------------------- - */ -void -Trimline::getNextPts( REAL vval, Backend& backend ) -{ - reset(); swap(); append( tinterp ); - assert( tinterp->param[1] >= vval ); - - register TrimVertex *p; - for( p=jarcl.getnextpt() ; p->param[1] >= vval; p=jarcl.getnextpt() ) { - append( p ); - } - - /* compute and copy pointer to final point on left hull */ - if( interpvert( last(), p, binterp, vval ) ) { - binterp->nuid = p->nuid; - backend.triangle( p, binterp, last() ); - append( binterp ); - } - jarcl.reverse(); - (void) jarcl.getprevpt(); /* reset jarcl to proper position */ - jarcl.reverse(); -} - -void -Trimline::getPrevPts( REAL vval, Backend& backend ) -{ - reset(); swap(); append( tinterp ); - assert( tinterp->param[1] >= vval ); - - register TrimVertex *q; - for( q=jarcl.getprevpt(); q->param[1] >= vval; q=jarcl.getprevpt() ) { - append( q ); - } - - /* compute and copy pointer to final point on right hull */ - if( interpvert( q, last(), binterp, vval ) ) { - binterp->nuid = q->nuid; - backend.triangle( last(), binterp, q ); - append( binterp ); - } - jarcl.reverse(); - (void) jarcl.getnextpt(); /* reset jarcl to proper position */ - jarcl.reverse(); -} - -void -Trimline::getNextPts( Arc_ptr botarc ) -{ - reset(); swap(); append( tinterp ); - - register TrimVertex *p = jarcl.getnextpt(); - for( append( p ); p != botarc->pwlArc->pts; append( p ) ) { - assert( p != &botarc->prev->pwlArc->pts[botarc->prev->pwlArc->npts-1] ); - p = jarcl.getnextpt(); - } -} - -void -Trimline::getPrevPts( Arc_ptr botarc ) -{ - reset(); swap(); append( tinterp ); - - PwlArc *lastpwl = botarc->prev->pwlArc; - - register TrimVertex *q = jarcl.getprevpt(); - for( append( q ); q != &lastpwl->pts[lastpwl->npts-1]; append( q ) ) { - assert( q != botarc->pwlArc->pts ); - q = jarcl.getprevpt(); - } -} - - -long -Trimline::interpvert( TrimVertex *a, TrimVertex *b, TrimVertex *c, REAL vval ) -{ - REAL denom = a->param[1] - b->param[1]; - - if(denom != 0) { - if( vval == a->param[1] ) { - c->param[0] = a->param[0]; - c->param[1] = a->param[1]; - c->nuid = a->nuid; - return 0; - } else if( vval == b->param[1] ) { - c->param[0] = b->param[0]; - c->param[1] = b->param[1]; - c->nuid = b->nuid; - return 0; - } else { - REAL r = (a->param[1] - vval)/denom; - c->param[0] = a->param[0] - r * (a->param[0] - b->param[0]); - c->param[1] = vval; - return 1; - } - } else { - c->param[0] = a->param[0]; - c->param[1] = a->param[1]; - c->nuid = a->nuid; - return 0; - } -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimline.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimline.h deleted file mode 100644 index 2031a79b0..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimline.h +++ /dev/null @@ -1,109 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * trimline.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimline.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __glutrimline_h_ -#define __glutrimline_h_ - -class Arc; -class Backend; - -#include "trimvertex.h" -#include "jarcloc.h" - - -class Trimline { -private: - TrimVertex** pts; - long numverts; - long i; - long size; - Jarcloc jarcl; - TrimVertex t, b; - TrimVertex *tinterp, *binterp; - void reset( void ) { numverts = 0; } - inline void grow( long ); - inline void swap( void ); - inline void append( TrimVertex * ); - static long interpvert( TrimVertex *, TrimVertex *, TrimVertex *, REAL ); - - - -public: - Trimline(); - ~Trimline(); - void init( TrimVertex * ); - void init( long, Arc_ptr, long ); - void getNextPt( void ); - void getPrevPt( void ); - void getNextPts( REAL, Backend & ); - void getPrevPts( REAL, Backend & ); - void getNextPts( Arc_ptr ); - void getPrevPts( Arc_ptr ); - inline TrimVertex * next( void ); - inline TrimVertex * prev( void ); - inline TrimVertex * first( void ); - inline TrimVertex * last( void ); -}; - -inline TrimVertex * -Trimline::next( void ) -{ - if( i < numverts) return pts[i++]; else return 0; -} - -inline TrimVertex * -Trimline::prev( void ) -{ - if( i >= 0 ) return pts[i--]; else return 0; -} - -inline TrimVertex * -Trimline::first( void ) -{ - i = 0; return pts[i]; -} - -inline TrimVertex * -Trimline::last( void ) -{ - i = numverts; return pts[--i]; -} -#endif /* __glutrimline_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimregion.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimregion.cc deleted file mode 100644 index c517f3793..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimregion.cc +++ /dev/null @@ -1,116 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * trimregion.c++ - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimregion.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "trimregion.h" -#include "backend.h" - -TrimRegion::TrimRegion( void ) -{ -} - -void -TrimRegion::setDu( REAL du ) -{ - oneOverDu = 1.0/du; -} - -void -TrimRegion::init( long npts, Arc_ptr extrema ) -{ - left.init( npts, extrema, extrema->pwlArc->npts - 1 ); - left.getNextPt(); - - right.init( npts, extrema, 0 ); - right.getPrevPt(); -} - -void -TrimRegion::getPts( Arc_ptr extrema ) -{ - left.getNextPts( extrema ); - right.getPrevPts( extrema ); -} - -void -TrimRegion::getPts( Backend &backend ) -{ - left.getNextPts( bot.vval, backend ); - right.getPrevPts( bot.vval, backend ); -} - -void -TrimRegion::getGridExtent( void ) -{ - getGridExtent( left.last(), right.last() ); -} - -void -TrimRegion::getGridExtent( TrimVertex *l, TrimVertex *r ) -{ - bot.ustart = (long) ((l->param[0] - uarray.uarray[0])*oneOverDu); - if( l->param[0] >= uarray.uarray[bot.ustart] ) bot.ustart++; -// if( l->param[0] > uarray.uarray[bot.ustart] ) bot.ustart++; - assert( l->param[0] <= uarray.uarray[bot.ustart] ); - assert( l->param[0] >= uarray.uarray[bot.ustart-1] ); - - bot.uend = (long) ((r->param[0] - uarray.uarray[0])*oneOverDu); - if( uarray.uarray[bot.uend] >= r->param[0] ) bot.uend--; -// if( uarray.uarray[bot.uend] > r->param[0] ) bot.uend--; - assert( r->param[0] >= uarray.uarray[bot.uend] ); - assert( r->param[0] <= uarray.uarray[bot.uend+1] ); -} - -int -TrimRegion::canTile( void ) -{ - TrimVertex *lf = left.first(); - TrimVertex *ll = left.last(); - TrimVertex *l = ( ll->param[0] > lf->param[0] ) ? ll : lf; - - TrimVertex *rf = right.first(); - TrimVertex *rl = right.last(); - TrimVertex *r = ( rl->param[0] < rf->param[0] ) ? rl : rf; - return (l->param[0] <= r->param[0]) ? 1 : 0; -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimregion.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimregion.h deleted file mode 100644 index 6d36973c9..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimregion.h +++ /dev/null @@ -1,90 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * trimregion.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimregion.h,v 1.1.1.4 2004/03/14 08:29:11 eich 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_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimvertex.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimvertex.h deleted file mode 100644 index f48c563f3..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimvertex.h +++ /dev/null @@ -1,69 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * trimvertex.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimvertex.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __glutrimvertex_h_ -#define __glutrimvertex_h_ - -#include "types.h" - -/*#define USE_OPTTT*/ - -class TrimVertex { /* a vertex on a trim curve */ -public: - REAL param[2]; /* parametric space coords */ -#ifdef USE_OPTTT - REAL cache_point[4]; //only when USE_OPTTT is on in slicer.c++ - REAL cache_normal[3]; -#endif - long nuid; -}; - -typedef class TrimVertex *TrimVertex_p; - -inline REAL -det3( TrimVertex *a, TrimVertex *b, TrimVertex *c ) -{ - return a->param[0] * (b->param[1]-c->param[1]) + - b->param[0] * (c->param[1]-a->param[1]) + - c->param[0] * (a->param[1]-b->param[1]); -} - -#endif /* __glutrimvertex_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimvertpool.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimvertpool.cc deleted file mode 100644 index e3f05abd8..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimvertpool.cc +++ /dev/null @@ -1,121 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * trimvertexpool.c++ - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimvertpool.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "mystring.h" -#include "trimvertex.h" -#include "trimvertpool.h" -#include "bufpool.h" - -/*---------------------------------------------------------------------------- - * TrimVertexPool::TrimVertexPool - *---------------------------------------------------------------------------- - */ -TrimVertexPool::TrimVertexPool( void ) - : pool( sizeof(TrimVertex)*3, 32, "Threevertspool" ) -{ - // initialize array of pointers to vertex lists - nextvlistslot = 0; - vlistsize = INIT_VERTLISTSIZE; - vlist = new TrimVertex_p[vlistsize]; -} - -/*---------------------------------------------------------------------------- - * TrimVertexPool::~TrimVertexPool - *---------------------------------------------------------------------------- - */ -TrimVertexPool::~TrimVertexPool( void ) -{ - // free all arrays of TrimVertices vertices - while( nextvlistslot ) { - delete vlist[--nextvlistslot]; - } - - // reallocate space for array of pointers to vertex lists - if( vlist ) delete[] vlist; -} - -/*---------------------------------------------------------------------------- - * TrimVertexPool::clear - *---------------------------------------------------------------------------- - */ -void -TrimVertexPool::clear( void ) -{ - // reinitialize pool of 3 vertex arrays - pool.clear(); - - // free all arrays of TrimVertices vertices - while( nextvlistslot ) { - delete vlist[--nextvlistslot]; - vlist[nextvlistslot] = 0; - } - - // reallocate space for array of pointers to vertex lists - if( vlist ) delete[] vlist; - vlist = new TrimVertex_p[vlistsize]; -} - - -/*---------------------------------------------------------------------------- - * TrimVertexPool::get - allocate a vertex list - *---------------------------------------------------------------------------- - */ -TrimVertex * -TrimVertexPool::get( int n ) -{ - TrimVertex *v; - if( n == 3 ) { - v = (TrimVertex *) pool.new_buffer(); - } else { - if( nextvlistslot == vlistsize ) { - vlistsize *= 2; - TrimVertex_p *nvlist = new TrimVertex_p[vlistsize]; - memcpy( nvlist, vlist, nextvlistslot * sizeof(TrimVertex_p) ); - if( vlist ) delete[] vlist; - vlist = nvlist; - } - v = vlist[nextvlistslot++] = new TrimVertex[n]; - } - return v; -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimvertpool.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimvertpool.h deleted file mode 100644 index d17445afe..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimvertpool.h +++ /dev/null @@ -1,63 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * trimvertexpool.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/trimvertpool.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __glutrimvertpool_h_ -#define __glutrimvertpool_h_ - -#include "bufpool.h" - -class TrimVertex; - -#define INIT_VERTLISTSIZE 200 - -class TrimVertexPool { -public: - TrimVertexPool( void ); - ~TrimVertexPool( void ); - void clear( void ); - TrimVertex * get( int ); -private: - Pool pool; - TrimVertex ** vlist; - int nextvlistslot; - int vlistsize; -}; -#endif /* __glutrimvertpool_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/types.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/types.h deleted file mode 100644 index 93a422ca6..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/types.h +++ /dev/null @@ -1,53 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * types.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/types.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __glutypes_h_ -#define __glutypes_h_ - -//typedef double INREAL; -#define INREAL float -typedef float REAL; -typedef void (*Pfvv)( void ); -typedef void (*Pfvf)( float * ); -typedef int (*cmpfunc)(const void *, const void *); -typedef REAL Knot, *Knot_ptr;/* knot values */ - -#endif /* __glutypes_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/uarray.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/uarray.cc deleted file mode 100644 index 704fd6b85..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/uarray.cc +++ /dev/null @@ -1,74 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * uarray.c++ - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/uarray.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "uarray.h" -#include "arc.h" - -Uarray::Uarray( void ) -{ - uarray = 0; - size = 0; -} - -Uarray::~Uarray( void ) -{ - if( uarray ) delete[] uarray; -} - -long -Uarray::init( REAL delta, Arc_ptr lo, Arc_ptr hi ) -{ - ulines = (long) ((hi->tail()[0] - lo->tail()[0])/delta) + 3; - if( size < ulines ) { - size = ulines * 2; - if( uarray ) delete[] uarray; - uarray = new REAL[size]; - assert( uarray != 0); - } - uarray[0] = lo->tail()[0] - delta/2.0; - for( long i = 1 ; i != ulines; i++ ) - uarray[i] = uarray[0] + i*delta; - return ulines; -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/uarray.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/uarray.h deleted file mode 100644 index eae275013..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/uarray.h +++ /dev/null @@ -1,61 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * uarray.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/uarray.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __gluuarray_h_ -#define __gluuarray_h_ - -#include "types.h" - -class Arc; -typedef class Arc *Arc_ptr; - -class Uarray { -private: - long size; - long ulines; -public: - Uarray(); - ~Uarray(); - long init( REAL, Arc_ptr, Arc_ptr ); - REAL * uarray; -}; - -#endif /* __gluuarray_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/varray.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/varray.cc deleted file mode 100644 index e644b297a..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/varray.cc +++ /dev/null @@ -1,146 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * varray.c++ - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/varray.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#include "glimports.h" -#include "myassert.h" -#include "mystdio.h" -#include "varray.h" -#include "arc.h" -#include "math.h" // fabs() - -#define TINY 0.0001 -inline long sgn( REAL x ) -{ - return (x < -TINY) ? -1 : ((x > TINY) ? 1 : 0 ); -} - - -Varray::Varray( void ) -{ - varray = 0; - size = 0; -} - -Varray::~Varray( void ) -{ - if( varray ) delete[] varray; -} - -inline void -Varray::update( Arc_ptr arc, long dir[2], REAL val ) -{ - register long ds = sgn(arc->tail()[0] - arc->prev->tail()[0]); - register long dt = sgn(arc->tail()[1] - arc->prev->tail()[1]); - - if( dir[0] != ds || dir[1] != dt ) { - dir[0] = ds; - dir[1] = dt; - append( val ); - } -} - -void -Varray::grow( long guess ) -{ - if( size < guess ) { - size = guess * 2; - if( varray ) delete[] varray; - varray = new REAL[size]; - assert( varray != 0 ); - } -} - -long -Varray::init( REAL delta, Arc_ptr toparc, Arc_ptr botarc ) -{ - Arc_ptr left = toparc->next; - Arc_ptr right = toparc; - long ldir[2], rdir[2]; - - ldir[0] = sgn( left->tail()[0] - left->prev->tail()[0] ); - ldir[1] = sgn( left->tail()[1] - left->prev->tail()[1] ); - rdir[0] = sgn( right->tail()[0] - right->prev->tail()[0] ); - rdir[1] = sgn( right->tail()[1] - right->prev->tail()[1] ); - - vval[0] = toparc->tail()[1]; - numquads = 0; - - while( 1 ) { - switch( sgn( left->tail()[1] - right->prev->tail()[1] ) ) { - case 1: - left = left->next; - update( left, ldir, left->prev->tail()[1] ); - break; - case -1: - right = right->prev; - update( right, rdir, right->tail()[1] ); - break; - case 0: - if( fabs(left->tail()[1] - botarc->tail()[1]) < TINY) goto end; - if( fabs(left->tail()[0]-right->prev->tail()[0]) < TINY && - fabs(left->tail()[1]-right->prev->tail()[1]) < TINY) goto end; - left = left->next; - break; - } - } - -end: - append( botarc->tail()[1] ); - - grow( ((long) ((vval[0] - vval[numquads])/delta)) + numquads + 2 ); - - long i, index = 0; - for( i=0; i delta ) { - long steps = ((long) (dist/delta)) +1; - float deltav = - dist / (REAL) steps; - for( long j=1; j - -OBJS = \ - directedLine.o \ - gridWrap.o \ - monoChain.o \ - monoTriangulation.o \ - partitionX.o \ - partitionY.o \ - polyDBG.o \ - polyUtil.o \ - primitiveStream.o \ - quicksort.o \ - rectBlock.o \ - sampleComp.o \ - sampleCompBot.o \ - sampleCompRight.o \ - sampleCompTop.o \ - sampleMonoPoly.o \ - sampledLine.o \ - searchTree.o \ - monoPolyPart.o - -INCLUDES = \ - -I../internals \ - -I../../include \ - -I$(TOP)/include \ - -I$(TOP)/include/GL - -DEFINES = \ - -DLIBRARYBUILD \ - -DNDEBUG - -NormalCplusplusObjectRule() - -NormalLibraryTarget(nurbtess, $(OBJS)) - -DependTarget() -CleanTarget() diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/definitions.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/definitions.h deleted file mode 100644 index 18b86e0b6..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/definitions.h +++ /dev/null @@ -1,47 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/definitions.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _DEFINITIONS_H -#define _DEFINITIONS_H - -typedef float Real; -typedef int Int; -typedef Real Real2[2]; - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/directedLine.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/directedLine.cc deleted file mode 100644 index d3f4e593d..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/directedLine.cc +++ /dev/null @@ -1,846 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/directedLine.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#include -#include -#include -#include "glimports.h" -#include "zlassert.h" - -#include "quicksort.h" -#include "directedLine.h" -#include "polyDBG.h" - -//we must return the newLine -directedLine* directedLine::deleteChain(directedLine* begin, directedLine* end) -{ - if(begin->head()[0] == end->tail()[0] && - begin->head()[1] == end->tail()[1] - ) - { - directedLine *ret = begin->prev; - begin->prev->next = end->next; - end->next->prev = begin->prev; - delete begin->sline; - delete end->sline; - delete begin; - delete end; - - return ret; - } - - directedLine* newLine; - sampledLine* sline = new sampledLine(begin->head(), end->tail()); - newLine = new directedLine(INCREASING, sline); - directedLine *p = begin->prev; - directedLine *n = end->next; - p->next = newLine; - n->prev = newLine; - newLine->prev = p; - newLine->next = n; - - delete begin->sline; - delete end->sline; - delete begin; - delete end; - return newLine; -} - - -void directedLine::deleteSingleLine(directedLine* dline) -{ - //make sure that dline->prev->tail is the same as - //dline->next->head. This is for numerical erros. - //for example, if we delete a line which is almost degeneate - //within (epsilon), then we want to make that the polygon after deletion - //is still a valid polygon - - dline->next->head()[0] = dline->prev->tail()[0]; - dline->next->head()[1] = dline->prev->tail()[1]; - - dline->prev->next = dline->next; - dline->next->prev = dline->prev; - - delete dline; - -} - -static Int myequal(Real a[2], Real b[2]) -{ - /* - if(a[0]==b[0] && a[1] == b[1]) - return 1; - else - return 0; - */ - - - if(fabs(a[0]-b[0]) < 0.00001 && - fabs(a[1]-b[1]) < 0.00001) - return 1; - else - return 0; - -} - -directedLine* directedLine::deleteDegenerateLines() -{ - //if there is only one edge or two edges, don't do anything - if(this->next == this) - return this; - if(this->next == this->prev) - return this; - - //find a nondegenerate line - directedLine* temp; - directedLine* first = NULL; - if(! myequal(head(), tail())) - /* - if(head()[0] != tail()[0] || - head()[1] != tail()[1]) - */ - first = this; - else - { - for(temp = this->next; temp != this; temp = temp->next) - { - /* - if(temp->head()[0] != temp->tail()[0] || - temp->head()[1] != temp->tail()[1]) - */ - if(! myequal(temp->head(), temp->tail())) - { - first = temp; - break; - } - - } - } - - //if there are no non-degenerate lines, then we simply return NULL. - if(first == NULL) - { - deleteSinglePolygonWithSline(); - return NULL; - } - - directedLine* tempNext = NULL; - for(temp =first->next; temp != first; temp = tempNext) - { - tempNext = temp->getNext(); -/* - if(temp->head()[0] == temp->tail()[0] && - temp->head()[1] == temp->tail()[1]) -*/ - - if(myequal(temp->head(), temp->tail())) - deleteSingleLine(temp); - } - return first; -} - -directedLine* directedLine::deleteDegenerateLinesAllPolygons() -{ - directedLine* temp; - directedLine *tempNext = NULL; - directedLine* ret= NULL; - directedLine* retEnd = NULL; - for(temp=this; temp != NULL; temp = tempNext) - { - tempNext = temp->nextPolygon; - temp->nextPolygon = NULL; - if(ret == NULL) - { - ret = retEnd = temp->deleteDegenerateLines(); - - } - else - { - directedLine *newPolygon = temp->deleteDegenerateLines(); - if(newPolygon != NULL) - { - retEnd->nextPolygon = temp->deleteDegenerateLines(); - retEnd = retEnd->nextPolygon; - } - } - } - return ret; -} - -directedLine* directedLine::cutIntersectionAllPoly(int &cutOccur) -{ - directedLine* temp; - directedLine *tempNext = NULL; - directedLine* ret= NULL; - directedLine* retEnd = NULL; - cutOccur = 0; - for(temp=this; temp != NULL; temp = tempNext) - { - int eachCutOccur=0; - tempNext = temp->nextPolygon; - temp->nextPolygon = NULL; - if(ret == NULL) - { - - ret = retEnd = DBG_cutIntersectionPoly(temp, eachCutOccur); - if(eachCutOccur) - cutOccur = 1; - } - else - { - - retEnd->nextPolygon = DBG_cutIntersectionPoly(temp, eachCutOccur); - retEnd = retEnd->nextPolygon; - if(eachCutOccur) - cutOccur = 1; - } - } - return ret; -} - - -void directedLine::deleteSinglePolygonWithSline() -{ - directedLine *temp, *tempNext; - prev->next = NULL; - for(temp=this; temp != NULL; temp = tempNext) - { - tempNext = temp->next; - delete temp->sline; - delete temp; - } -} - -void directedLine::deletePolygonListWithSline() -{ - directedLine *temp, *tempNext; - for(temp=this; temp != NULL; temp=tempNext) - { - tempNext = temp->nextPolygon; - temp->deleteSinglePolygonWithSline(); - } -} - -void directedLine::deleteSinglePolygon() -{ - directedLine *temp, *tempNext; - prev->next = NULL; - for(temp=this; temp != NULL; temp = tempNext) - { - tempNext = temp->next; - delete temp; - } -} - -void directedLine::deletePolygonList() -{ - directedLine *temp, *tempNext; - for(temp=this; temp != NULL; temp=tempNext) - { - tempNext = temp->nextPolygon; - temp->deleteSinglePolygon(); - } -} - - -/*a loop by itself*/ -directedLine::directedLine(short dir, sampledLine* sl) -{ - direction = dir; - sline = sl; - next = this; - prev = this; - nextPolygon = NULL; -// prevPolygon = NULL; - rootBit = 0;/*important to initilzae to 0 meaning not root yet*/ - - rootLink = NULL; - -} - -void directedLine::init(short dir, sampledLine* sl) -{ - direction = dir; - sline = sl; -} - -directedLine::directedLine() -{ - next = this; - prev = this; - nextPolygon = NULL; - rootBit = 0;/*important to initilzae to 0 meaning not root yet*/ - rootLink = NULL; -} - -directedLine::~directedLine() -{ -} - -Real* directedLine::head() -{ - - return (direction==INCREASING)? (sline->get_points())[0] : (sline->get_points())[sline->get_npoints()-1]; -} - -/*inline*/ Real* directedLine::getVertex(Int i) -{ - return (direction==INCREASING)? (sline->get_points())[i] : (sline->get_points())[sline->get_npoints() - 1 -i]; -} - -Real* directedLine::tail() -{ - return (direction==DECREASING)? (sline->get_points())[0] : (sline->get_points())[sline->get_npoints()-1]; -} - - /*insert a new line between prev and this*/ -void directedLine::insert(directedLine* nl) -{ - nl->next = this; - nl->prev = prev; - prev->next = nl; - prev = nl; - nl->rootLink = this; /*assuming that 'this' is the root!!!*/ -} - -Int directedLine::numEdges() -{ - Int ret=0; - directedLine* temp; - if(next == this) return 1; - - ret = 1; - for(temp = next; temp != this; temp = temp->next) - ret++; - return ret; -} - -Int directedLine::numEdgesAllPolygons() -{ - Int ret=0; - directedLine* temp; - for(temp=this; temp!= NULL; temp=temp->nextPolygon) - { - ret += temp->numEdges(); - } - return ret; -} - -/*return 1 if the double linked list forms a polygon. - */ -short directedLine::isPolygon() -{ - directedLine* temp; - - /*a polygon contains at least 3 edges*/ - if(numEdges() <=2) return 0; - - /*check this edge*/ - if(! isConnected()) return 0; - - /*check all other edges*/ - for(temp=next; temp != this; temp = temp->next){ - if(!isConnected()) return 0; - } - return 1; -} - -/*check if the head of this edge is connected to - *the tail of the prev - */ -short directedLine::isConnected() -{ - if( (head()[0] == prev->tail()[0]) && (head()[1] == prev->tail()[1])) - return 1; - else - return 0; -} - -Int compV2InY(Real A[2], Real B[2]) -{ - if(A[1] < B[1]) return -1; - if(A[1] == B[1] && A[0] < B[0]) return -1; - if(A[1] == B[1] && A[0] == B[0]) return 0; - return 1; -} - -Int compV2InX(Real A[2], Real B[2]) -{ - if(A[0] < B[0]) return -1; - if(A[0] == B[0] && A[1] < B[1]) return -1; - if(A[0] == B[0] && A[1] == B[1]) return 0; - return 1; -} - -/*compare two vertices NOT lines! - *A vertex is the head of a directed line. - *(x_1, y_1) <= (x_2, y_2) if - *either y_1 < y_2 - *or y_1 == y_2 && x_1 < x_2. - *return -1 if this->head() <= nl->head(), - *return 1 otherwise - */ -Int directedLine::compInY(directedLine* nl) -{ - if(head()[1] < nl->head()[1]) return -1; - if(head()[1] == nl->head()[1] && head()[0] < nl->head()[0]) return -1; - return 1; -} - -/*compare two vertices NOT lines! - *A vertex is the head of a directed line. - *(x_1, y_1) <= (x_2, y_2) if - *either x_1 < x_2 - *or x_1 == x_2 && y_1 < y_2. - *return -1 if this->head() <= nl->head(), - *return 1 otherwise - */ -Int directedLine::compInX(directedLine* nl) -{ - if(head()[0] < nl->head()[0]) return -1; - if(head()[0] == nl->head()[0] && head()[1] < nl->head()[1]) return -1; - return 1; -} - -/*used by sort precedures - */ -static Int compInY2(directedLine* v1, directedLine* v2) -{ - return v1->compInY(v2); -} -#ifdef NOT_USED -static Int compInX(directedLine* v1, directedLine* v2) -{ - return v1->compInX(v2); -} -#endif - -/*sort all the vertices NOT the lines! - *a vertex is the head of a directed line - */ -directedLine** directedLine::sortAllPolygons() -{ - Int total_num_edges = 0; - directedLine** array = toArrayAllPolygons(total_num_edges); - quicksort( (void**)array, 0, total_num_edges-1, (Int (*)(void *, void *)) compInY2); - - return array; -} - -void directedLine::printSingle() -{ - if(direction == INCREASING) - printf("direction is INCREASING\n"); - else - printf("direction is DECREASING\n"); - printf("head=%f,%f)\n", head()[0], head()[1]); - sline->print(); -} - -/*print one polygon*/ -void directedLine::printList() -{ - directedLine* temp; - printSingle(); - for(temp = next; temp!=this; temp=temp->next) - temp->printSingle(); -} - -/*print all the polygons*/ -void directedLine::printAllPolygons() -{ - directedLine *temp; - for(temp = this; temp!=NULL; temp = temp->nextPolygon) - { - printf("polygon:\n"); - temp->printList(); - } -} - -/*insert this polygon into the head of the old polygon List*/ -directedLine* directedLine::insertPolygon(directedLine* oldList) -{ - /*this polygon is a root*/ - setRootBit(); - if(oldList == NULL) return this; - nextPolygon = oldList; -/* oldList->prevPolygon = this;*/ - return this; -} - -/*cutoff means delete. but we don't deallocate any space, - *so we use cutoff instead of delete - */ -directedLine* directedLine::cutoffPolygon(directedLine *p) -{ - directedLine* temp; - directedLine* prev_polygon = NULL; - if(p == NULL) return this; - - for(temp=this; temp != p; temp = temp->nextPolygon) - { - if(temp == NULL) - { - fprintf(stderr, "in cutoffPolygon, not found\n"); - exit(1); - } - prev_polygon = temp; - } - -/* prev_polygon = p->prevPolygon;*/ - - p->resetRootBit(); - if(prev_polygon == NULL) /*this is the one to cutoff*/ - return nextPolygon; - else { - prev_polygon->nextPolygon = p->nextPolygon; - return this; - } -} - -Int directedLine::numPolygons() -{ - if(nextPolygon == NULL) return 1; - else return 1+nextPolygon->numPolygons(); -} - - -/*let array[index ...] denote - *all the edges in this polygon - *return the next available index of array. - */ -Int directedLine::toArraySinglePolygon(directedLine** array, Int index) -{ - directedLine *temp; - array[index++] = this; - for(temp = next; temp != this; temp = temp->next) - { - array[index++] = temp; - } - return index; -} - -/*the space is allocated. The caller is responsible for - *deallocate the space. - *total_num_edges is set to be the total number of edges of all polygons - */ -directedLine** directedLine::toArrayAllPolygons(Int& total_num_edges) -{ - total_num_edges=numEdgesAllPolygons(); - directedLine** ret = (directedLine**) malloc(sizeof(directedLine*) * total_num_edges); - assert(ret); - - directedLine *temp; - Int index = 0; - for(temp=this; temp != NULL; temp=temp->nextPolygon) { - index = temp->toArraySinglePolygon(ret, index); - } - return ret; -} - -/*assume the polygon is a simple polygon, return - *the area enclosed by it. - *if thee order is counterclock wise, the area is positive. - */ -Real directedLine::polyArea() -{ - directedLine* temp; - Real ret=0.0; - Real x1,y1,x2,y2; - x1 = this->head()[0]; - y1 = this->head()[1]; - x2 = this->next->head()[0]; - y2 = this->next->head()[1]; - ret = -(x2*y1-x1*y2); - for(temp=this->next; temp!=this; temp = temp->next) - { - x1 = temp->head()[0]; - y1 = temp->head()[1]; - x2 = temp->next->head()[0]; - y2 = temp->next->head()[1]; - ret += -( x2*y1-x1*y2); - } - return 0.5*ret; -} - -/*******************split or combine polygons begin********************/ -/*conect a diagonal of a single simple polygon or two simple polygons. - *If the two vertices v1 (head) and v2 (head) are in the same simple polygon, - *then we actually split the simple polygon into two polygons. - *If instead two vertices velong to two difference polygons, - *then we combine the two polygons into one polygon. - *It is upto the caller to decide whether this is a split or a - *combination. - * - *Case Split: - *split a single simple polygon into two simple polygons by - *connecting a diagonal (two vertices). - *v1, v2: the two vertices are the head() of the two directedLines. - * this routine generates one new sampledLine which is returned in - *generatedLine, - *and it generates two directedLines returned in ret_p1 and ret_p2. - *ret_p1 and ret_p2 are used as the entry to the two new polygons. - *Notice the caller should not deallocate the space of v2 and v2 after - *calling this function, since all of the edges are connected to - *ret_p1 or ret_p2. - * - *combine: - *combine two simpolygons into one by connecting one diagonal. - *the returned polygon is returned in ret_p1. - */ -/*ARGSUSED*/ -void directedLine::connectDiagonal(directedLine* v1, directedLine* v2, - directedLine** ret_p1, - directedLine** ret_p2, - sampledLine** generatedLine, - directedLine* polygonList ) -{ - sampledLine *nsline = new sampledLine(2); - - - - nsline->setPoint(0, v1->head()); - nsline->setPoint(1, v2->head()); - - - - /*the increasing line is from v1 head to v2 head*/ - directedLine* newLineInc = new directedLine(INCREASING, nsline); - - - - directedLine* newLineDec = new directedLine(DECREASING, nsline); - - - directedLine* v1Prev = v1->prev; - directedLine* v2Prev = v2->prev; - - v1 ->prev = newLineDec; - v2Prev ->next = newLineDec; - newLineDec->next = v1; - newLineDec->prev = v2Prev; - - v2 ->prev = newLineInc; - v1Prev ->next = newLineInc; - newLineInc->next = v2; - newLineInc->prev = v1Prev; - - *ret_p1 = newLineDec; - *ret_p2 = newLineInc; - *generatedLine = nsline; -} - -//see the function connectDiangle -/*ARGSUSED*/ -void directedLine::connectDiagonal_2slines(directedLine* v1, directedLine* v2, - directedLine** ret_p1, - directedLine** ret_p2, - directedLine* polygonList ) -{ - sampledLine *nsline = new sampledLine(2); - sampledLine *nsline2 = new sampledLine(2); - - nsline->setPoint(0, v1->head()); - nsline->setPoint(1, v2->head()); - nsline2->setPoint(0, v1->head()); - nsline2->setPoint(1, v2->head()); - - /*the increasing line is from v1 head to v2 head*/ - directedLine* newLineInc = new directedLine(INCREASING, nsline); - - directedLine* newLineDec = new directedLine(DECREASING, nsline2); - - directedLine* v1Prev = v1->prev; - directedLine* v2Prev = v2->prev; - - v1 ->prev = newLineDec; - v2Prev ->next = newLineDec; - newLineDec->next = v1; - newLineDec->prev = v2Prev; - - v2 ->prev = newLineInc; - v1Prev ->next = newLineInc; - newLineInc->next = v2; - newLineInc->prev = v1Prev; - - *ret_p1 = newLineDec; - *ret_p2 = newLineInc; - -} - -Int directedLine::samePolygon(directedLine* v1, directedLine* v2) -{ - if(v1 == v2) return 1; - directedLine *temp; - for(temp = v1->next; temp != v1; temp = temp->next) - { - if(temp == v2) return 1; - } - return 0; -} - -directedLine* directedLine::findRoot() -{ - if(rootBit) return this; - directedLine* temp; - for(temp = next; temp != this; temp = temp->next) - if(temp -> rootBit ) return temp; - return NULL; /*should not happen*/ -} - -directedLine* directedLine::rootLinkFindRoot() -{ - directedLine* tempRoot; - directedLine* tempLink; - tempRoot = this; - tempLink = rootLink; - while(tempLink != NULL){ - tempRoot = tempLink; - tempLink = tempRoot->rootLink; - } - return tempRoot; -} - -/*******************split or combine polygons end********************/ - -/*****************IO stuff begin*******************/ - -/*format: - *#polygons - * #vertices - * vertices - * #vertices - * vertices - *... - */ -void directedLine::writeAllPolygons(char* filename) -{ - FILE* fp = fopen(filename, "w"); - assert(fp); - Int nPolygons = numPolygons(); - directedLine *root; - fprintf(fp, "%i\n", nPolygons); - for(root = this; root != NULL; root = root->nextPolygon) - { - directedLine *temp; - Int npoints=0; - npoints = root->get_npoints()-1; - for(temp = root->next; temp != root; temp=temp->next) - npoints += temp->get_npoints()-1; - fprintf(fp, "%i\n", npoints/*root->numEdges()*/); - - - for(Int i=0; iget_npoints()-1; i++){ - fprintf(fp, "%f ", root->getVertex(i)[0]); - fprintf(fp, "%f ", root->getVertex(i)[1]); - } - - for(temp=root->next; temp != root; temp = temp->next) - { - for(Int i=0; iget_npoints()-1; i++){ - - fprintf(fp, "%f ", temp->getVertex(i)[0]); - fprintf(fp, "%f ", temp->getVertex(i)[1]); - } - fprintf(fp,"\n"); - } - fprintf(fp, "\n"); - } - fclose(fp); -} - -directedLine* readAllPolygons(char* filename) -{ - Int i,j; - FILE* fp = fopen(filename, "r"); - assert(fp); - Int nPolygons; - fscanf(fp, "%i", &nPolygons); - directedLine *ret = NULL; - - for(i=0; irootLinkSet(NULL); - - directedLine *dLine; - for(j=2; jrootLinkSet(thisPoly); - thisPoly->insert(dLine); - } - - VV[0][0]=vert[1][0]; - VV[0][1]=vert[1][1]; - sLine = new sampledLine(2,VV); - dLine = new directedLine(INCREASING, sLine); -dLine->rootLinkSet(thisPoly); - thisPoly->insert(dLine); - - ret = thisPoly->insertPolygon(ret); - } - fclose(fp); - return ret; -} - - - - - - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/directedLine.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/directedLine.h deleted file mode 100644 index 11dcdfa9c..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/directedLine.h +++ /dev/null @@ -1,178 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/directedLine.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _DIRECTEDLINE_H -#define _DIRECTEDLINE_H - -#include "definitions.h" -#include "sampledLine.h" - -enum {INCREASING, DECREASING}; - -class directedLine { - short direction; /*INCREASING or DECREASING*/ - sampledLine* sline; - directedLine* next; /*double linked list*/ - directedLine* prev; /*double linked list*/ - - /*in case we need a list of polygons each - *consisting of a double linked list - */ - directedLine* nextPolygon; - - /*optimization make cutoff polygon faster*/ -/* directedLine* prevPolygon;*/ - - Int rootBit; /*1 if this is a root of the polygon, set by setRootBit*/ - /*and reset by resetRootBit()*/ - - directedLine* rootLink; /*fast root-finding*/ - - - -public: - directedLine(short dir, sampledLine* sl); - directedLine(); - ~directedLine(); - - void init(short dir, sampledLine* sl); - - Real* head(); /*points[0] if INCREASING, points[n-1] otherwise*/ - Real* tail(); /*points[n-1] if INCREASING, points[0] otherwise*/ - Real* getVertex(Int i); /*points[i] if INCREASING, points[n-1-i] otherwise*/ - Int get_npoints() {return sline->get_npoints();} - directedLine* getPrev() {return prev;} - directedLine* getNext() {return next;} - directedLine* getNextPolygon() {return nextPolygon;} - sampledLine* getSampledLine() {return sline;} - - short getDirection(){return direction;} - void putDirection(short dir) {direction = dir;} - void putPrev(directedLine *p) {prev = p;} - void putNext(directedLine *p) {next = p;} - - /*insert a new line between prev and this*/ - void insert(directedLine* nl); - - /*delete all the polygons following the link: nextPolygon. - *notice that sampledLine is not deleted. The caller is - *responsible for that - */ - void deletePolygonList(); - void deleteSinglePolygon(); - - void deleteSinglePolygonWithSline(); //also delete sanmpled line - void deletePolygonListWithSline(); //also delete sanmpled line - - void deleteSingleLine(directedLine* dline); - directedLine* deleteDegenerateLines(); - directedLine* deleteDegenerateLinesAllPolygons(); - directedLine* cutIntersectionAllPoly(int& cutOccur); - - /*check to see if the list forms a closed polygon - *return 1 if yes - */ - short isPolygon(); - - Int compInY(directedLine* nl); - Int compInX(directedLine* nl); - - /*return an array of pointers. - *the - */ - directedLine** sortAllPolygons(); - - Int numEdges(); - Int numEdgesAllPolygons(); - Int numPolygons(); - - /*check if the head of this edge is connected to - *the tail of the prev - */ - short isConnected(); - - Real polyArea(); - - void printSingle(); - void printList(); - void printAllPolygons(); - void writeAllPolygons(char* filename); - - - /*insert a polygon: using nextPolygon*/ - directedLine* insertPolygon(directedLine* newpolygon); - directedLine* cutoffPolygon(directedLine *p); - - Int toArraySinglePolygon(directedLine** array, Int index); - directedLine** toArrayAllPolygons(Int& total_num_edges); - - void connectDiagonal(directedLine* v1, directedLine* v2, - directedLine** ret_p1, - directedLine** ret_p2, - sampledLine** generatedLine, directedLine* list); - - /*generate two slines - */ - void connectDiagonal_2slines(directedLine* v1, directedLine* v2, - directedLine** ret_p1, - directedLine** ret_p2, - directedLine* list); - - Int samePolygon(directedLine* v1, directedLine* v2); - void setRootBit() {rootBit = 1;} - void resetRootBit() {rootBit = 0;} - directedLine* findRoot(); - - void rootLinkSet(directedLine* r) {rootLink = r;} - directedLine* rootLinkFindRoot(); - - //the chain from begin to end is deleted (the space is deallocated) - //and a new edge(which connectes the head of begin and the tail of end) - // is inserted. The new polygon is returned. - //notice that "this" is arbitrary - directedLine* deleteChain(directedLine* begin, directedLine* end); -}; - -directedLine* readAllPolygons(char* filename); - -extern Int compV2InY(Real A[2], Real B[2]); -extern Int compV2InX(Real A[2], Real B[2]); - -#endif - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/glimports.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/glimports.h deleted file mode 100644 index b6398a7b6..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/glimports.h +++ /dev/null @@ -1,48 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * glimports.h - * - * $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/glimports.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __gluimports_h_ -#define __gluimports_h_ - -#include "mystdlib.h" -#include "mystdio.h" - -#endif /* __gluimports_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/gridWrap.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/gridWrap.cc deleted file mode 100644 index 039f6be43..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/gridWrap.cc +++ /dev/null @@ -1,295 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/gridWrap.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#include "gluos.h" -#include -#include -#include -#include "zlassert.h" -#include "gridWrap.h" - - -/*******************grid structure****************************/ -void gridWrap::print() -{ - printf("n_ulines = %i\n", n_ulines); - printf("n_vlines = %i\n", n_vlines); - printf("u_min=%f, umax=%f, vmin=%f, vmax=%f\n", u_min, u_max, v_min, v_max); -} - -gridWrap::gridWrap(Int nUlines, Real* uvals, - Int nVlines, Real* vvals) -{ - assert(nUlines>=2); - assert(nVlines>=2); - - is_uniform = 0; - n_ulines = nUlines; - n_vlines = nVlines; - u_min = uvals[0]; - u_max = uvals[nUlines-1]; - v_min = vvals[0]; - v_max = vvals[nVlines-1]; - u_values = (Real*) malloc(sizeof(Real) * n_ulines); - assert(u_values); - v_values = (Real*) malloc(sizeof(Real) * n_vlines); - assert(v_values); - - Int i; - for(i=0; i=2); - assert(nVlines>=2); - Real du = (uMax-uMin)/(nUlines-1); - Real dv = (vMax-vMin)/(nVlines-1); - - float tempu=uMin; - u_values[0] = tempu; - for(i=1; i= uright) - return; //no triangles to output. - - pStream->begin(); - pStream->insert(vert); - - assert(vert[1] != v_values[v]); //don't output degenerate triangles - - if(vert[1] > v_values[v]) //vertex is above this grid line: notice the orientation - { - for(i=uleft; i<=uright; i++) - pStream->insert(u_values[i], v_values[v]); - } - else //vertex is below the grid line - { - for(i=uright; i>= uleft; i--) - pStream->insert(u_values[i], v_values[v]); - } - - pStream->end(PRIMITIVE_STREAM_FAN); -} - - - -/*each chain stores a number of consecutive - *V-lines within a grid. - *There is one grid vertex on each V-line. - * The total number of V-lines is: - * nVlines. - * with respect to the grid, the index of the first V-line is - * firstVlineIndex. - * So with respect to the grid, the index of the ith V-line is - * firstVlineIndex-i. - * the grid-index of the uline at the ith vline (recall that each vline has one grid point) - * is ulineIndices[i]. The u_value is cached in ulineValues[i], that is, - * ulineValues[i] = grid->get_u_value(ulineIndices[i]) - */ -gridBoundaryChain::gridBoundaryChain( - gridWrap* gr, - Int first_vline_index, - Int n_vlines, - Int* uline_indices, - Int* inner_indices - ) -: grid(gr), firstVlineIndex(first_vline_index), nVlines(n_vlines) -{ - ulineIndices = (Int*) malloc(sizeof(Int) * n_vlines); - assert(ulineIndices); - - innerIndices = (Int*) malloc(sizeof(Int) * n_vlines); - assert(innerIndices); - - vertices = (Real2*) malloc(sizeof(Real2) * n_vlines); - assert(vertices); - - - - Int i; - for(i=0; iget_u_value(ulineIndices[i]); - vertices[i][1] = gr->get_v_value(first_vline_index-i); - } -} - -void gridBoundaryChain::draw() -{ - Int i; - glBegin(GL_LINE_STRIP); - for(i=0; iget_u_value(innerIndices[i]), get_v_value(i-1) ); - glVertex2f(grid->get_u_value(innerIndices[i]), get_v_value(i) ); - glEnd(); - } -} - -Int gridBoundaryChain::lookfor(Real v, Int i1, Int i2) -{ - Int mid; - while(i1 < i2-1) - { - mid = (i1+i2)/2; - if(v > vertices[mid][1]) - { - i2 = mid; - } - else - i1 = mid; - } - return i1; -} - -/*output the fan of the right end between grid line i-1 and grid line i*/ -void gridBoundaryChain::rightEndFan(Int i, primStream* pStream) -{ - Int j; - if(getUlineIndex(i) > getUlineIndex(i-1)) - { - pStream->begin(); - pStream->insert(get_vertex(i-1)); - for(j=getUlineIndex(i-1); j<= getUlineIndex(i); j++) - pStream->insert(grid->get_u_value(j), get_v_value(i)); - pStream->end(PRIMITIVE_STREAM_FAN); - } - else if(getUlineIndex(i) < getUlineIndex(i-1)) - { - pStream->begin(); - pStream->insert(get_vertex(i)); - for(j=getUlineIndex(i-1); j>= getUlineIndex(i); j--) - pStream->insert(grid->get_u_value(j), get_v_value(i-1)); - pStream->end(PRIMITIVE_STREAM_FAN); - } - //otherside, the two are equal, so there is no fan to output -} - - -/*output the fan of the left end between grid line i-1 and grid line i*/ -void gridBoundaryChain::leftEndFan(Int i, primStream* pStream) -{ - Int j; - if(getUlineIndex(i) < getUlineIndex(i-1)) - { - pStream->begin(); - pStream->insert(get_vertex(i-1)); - for(j=getUlineIndex(i); j<= getUlineIndex(i-1); j++) - pStream->insert(grid->get_u_value(j), get_v_value(i)); - pStream->end(PRIMITIVE_STREAM_FAN); - } - else if(getUlineIndex(i) > getUlineIndex(i-1)) - { - pStream->begin(); - pStream->insert(get_vertex(i)); - for(j=getUlineIndex(i); j>= getUlineIndex(i-1); j--) - pStream->insert(grid->get_u_value(j), get_v_value(i-1)); - pStream->end(PRIMITIVE_STREAM_FAN); - } - /*otherwisem, the two are equal, so there is no fan to outout*/ -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/gridWrap.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/gridWrap.h deleted file mode 100644 index efe01efdc..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/gridWrap.h +++ /dev/null @@ -1,144 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/gridWrap.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _GRIDWRAP_H -#define _GRIDWRAP_H - -#include -#include "definitions.h" - -#include "primitiveStream.h" -#include "zlassert.h" - -class gridWrap{ - Int n_ulines; - Int n_vlines; - Real u_min, u_max; - Real v_min, v_max; - - /*cache the coordinate values for efficiency. - *these are redundant information when - *the grid is uniform. - */ - Real* u_values; /*size is n_ulines*/ - Real* v_values; /*size is n_vlines*/ - - Int is_uniform; - -public: - //uniform grid constructor - gridWrap(Int nUlines, Int nVlines, - Real uMin, Real uMax, - Real vMin, Real vMax - ); - - //nonuniform grid constructor. - gridWrap(Int nUlines, Real *uvals, - Int nVlines, Real *vvlas - ); - ~gridWrap(); - - void print(); - Int get_n_ulines() {return n_ulines;} - Int get_n_vlines() {return n_vlines;} - Real get_u_min() {return u_min;} - Real get_u_max() {return u_max;} - Real get_v_min() {return v_min;} - Real get_v_max() {return v_max;} - - Real get_u_value(Int i) - { - assert(i=n_ulines){printf("ERROR, n_ulines=%i,i=%i\n",n_ulines,i);exit(0);}*/ - return u_values[i];} - Real get_v_value(Int j) {return v_values[j];} - - Real* get_u_values() {return u_values;} - Real* get_v_values() {return v_values;} - - void outputFanWithPoint(Int v, Int uleft, Int uright, - Real vert[2], primStream* pStream); - - void draw(); - - Int isUniform() {return is_uniform;} -}; - -class gridBoundaryChain{ - gridWrap* grid; - Int firstVlineIndex; - Int nVlines; - Int* ulineIndices; /*each v line has a boundary*/ - Int* innerIndices; /*the segment of the vertical gridline from */ - /*(innerIndices[i], i) to (innerIndices[i+1], i-1) */ - /*is inside the polygon: i=1,...,nVlines-1*/ - - Real2* vertices; /*one grid point at each grid V-line, cached for efficiency*/ - -public: - gridBoundaryChain(gridWrap* gr, Int first_vline_index, Int n_vlines, Int* uline_indices, Int* inner_indices); - - ~gridBoundaryChain() - { - free(innerIndices); - free(ulineIndices); - free(vertices); - } - - /*i indexes the vlines in this chain. - */ - Int getVlineIndex(Int i) {return firstVlineIndex-i;} - Int getUlineIndex(Int i) {return ulineIndices[i];} - Real get_u_value(Int i) {return vertices[i][0];} - Real get_v_value(Int i) {return vertices[i][1];} - Int get_nVlines() {return nVlines;} - Int getInnerIndex(Int i) {return innerIndices[i];} - Real getInner_u_value(Int i) {return grid->get_u_value(innerIndices[i]);} - - Real* get_vertex(Int i) {return vertices[i];} - gridWrap* getGrid() {return grid;} - void leftEndFan(Int i, primStream* pStream); - void rightEndFan(Int i, primStream* pStream); - - Int lookfor(Real v, Int i1, Int i2); //find i in [i1,i2] so that vertices[i][1]>= v > vertices[i+1][1] - void draw(); - void drawInner(); -}; - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoChain.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoChain.cc deleted file mode 100644 index 85f73874e..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoChain.cc +++ /dev/null @@ -1,932 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/04/23 18:42:56 $ $Revision: 1.2 $ -*/ -/* $XFree86$ */ - -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoChain.cc,v 1.2 2004/04/23 18:42:56 eich Exp $ -*/ - -#include "gluos.h" -#include -#include -#include - -#include "glimports.h" -#include "zlassert.h" - -#include "monoChain.h" -#include "quicksort.h" -#include "searchTree.h" -#include "polyUtil.h" - -#ifndef max -#define max(a,b) ((a>b)? a:b) -#endif -#ifndef min -#define min(a,b) ((a>b)? b:a) -#endif - -extern Int isCusp(directedLine *v); -extern Int deleteRepeatDiagonals(Int num_diagonals, directedLine** diagonal_vertices, directedLine** new_vertices); - -//for debug purpose only -//static void drawDiagonals(Int num_diagonals, directedLine** diagonal_vertices) -//{ -// Int i; -// for(i=0; ihead()); -// glVertex2fv(diagonal_vertices[2*i+1]->head()); -// glEnd(); -// } -//} - -/*given (x_1, y_1) and (x_2, y_2), and y - *return x such that (x,y) is on the line - */ -inline Real intersectHoriz(Real x1, Real y1, Real x2, Real y2, Real y) -{ - return ((y2==y1)? (x1+x2)*0.5 : x1 + ((y-y1)/(y2-y1)) * (x2-x1)); -} - -//compare the heads of the two chains -static int compChainHeadInY(monoChain* mc1, monoChain* mc2) -{ - return compV2InY(mc1->getHead()->head(), mc2->getHead()->head()); -} - -monoChain::monoChain(directedLine* cHead, directedLine* cTail) -{ - chainHead = cHead; - chainTail = cTail; - next = this; - prev = this; - - nextPolygon = NULL; - - //compute bounding box - directedLine* temp; - minX = maxX = chainTail->head()[0]; - minY = maxY = chainTail->head()[1]; - - for(temp=chainHead; temp!=cTail; temp = temp->getNext()) - { - if(temp->head()[0] < minX) - minX = temp->head()[0]; - if(temp->head()[0] > maxX) - maxX = temp->head()[0]; - - if(temp->head()[1] < minY) - minY = temp->head()[1]; - if(temp->head()[1] > maxY) - maxY = temp->head()[1]; - } - - //check whether the chain is increasing or decreasing - if(chainHead->compInY(chainTail) <0) - isIncrease = 1; - else - isIncrease = 0; - - //initilize currrent, this is used for accelerating search - if(isIncrease) - current = chainHead; - else - current = chainTail; - - isKey = 0; -} - -//insert a new line between prev and this -void monoChain::insert(monoChain* nc) -{ - nc->next = this; - nc->prev = prev; - prev->next = nc; - prev = nc; -} - -void monoChain::deleteLoop() -{ - monoChain *temp, *tempNext; - prev->next = NULL; - for(temp=this; temp != NULL; temp = tempNext) - { - tempNext = temp->next; - delete temp; - } -} - -void monoChain::deleteLoopList() -{ - monoChain *temp, *tempNext; - for(temp=this; temp != NULL; temp = tempNext) - { - tempNext = temp->nextPolygon; - temp->deleteLoop(); - } -} - -Int monoChain::toArraySingleLoop(monoChain** array, Int index) -{ - monoChain *temp; - array[index++] = this; - for(temp = next; temp != this; temp = temp->next) - { - array[index++] = temp; - } - return index; -} - -monoChain** monoChain::toArrayAllLoops(Int& num_chains) -{ - num_chains = numChainsAllLoops(); - monoChain **ret = (monoChain**) malloc(sizeof(monoChain*) * num_chains); - assert(ret); - monoChain *temp; - Int index = 0; - for(temp = this; temp != NULL; temp=temp->nextPolygon){ - index = temp->toArraySingleLoop(ret, index); - } - return ret; -} - -Int monoChain::numChainsSingleLoop() -{ - Int ret=0; - monoChain* temp; - if(next == this) return 1; - ret = 1; - for(temp=next; temp != this; temp = temp->next) - ret++; - return ret; -} - -Int monoChain::numChainsAllLoops() -{ - Int ret=0; - monoChain *temp; - for(temp =this; temp != NULL; temp = temp->nextPolygon) - ret += temp->numChainsSingleLoop(); - return ret; -} - -//update 'current' -Real monoChain::chainIntersectHoriz(Real y) -{ - directedLine* temp; - if(isIncrease) - { - for(temp= current; temp != chainTail; temp = temp->getNext()) - { - if(temp->head()[1] > y) - break; - } - current = temp->getPrev(); - } - else - { - for(temp = current; temp != chainHead; temp = temp->getPrev()) - { - if(temp->head()[1] > y) - break; - } - current = temp->getNext(); - } - return intersectHoriz(current->head()[0], current->head()[1], current->tail()[0], current->tail()[1], y); -} - -monoChain* directedLineLoopToMonoChainLoop(directedLine* loop) -{ - directedLine *temp; - monoChain *ret=NULL; - - //find the first cusp - directedLine *prevCusp=NULL; - directedLine *firstCusp; - - if(isCusp(loop)) - prevCusp = loop; - else - { - for(temp = loop->getNext(); temp != loop; temp = temp->getNext()) - if(isCusp(temp)) - break; - prevCusp = temp; - } - firstCusp = prevCusp; -//printf("first cusp is (%f,%f), (%f,%f), (%f,%f)\n", prevCusp->getPrev()->head()[0], prevCusp->getPrev()->head()[1], prevCusp->head()[0], prevCusp->head()[1], prevCusp->tail()[0], prevCusp->tail()[1]); - - for(temp = prevCusp->getNext(); temp != loop; temp = temp->getNext()) - { - if(isCusp(temp)) - { -//printf("the cusp is (%f,%f), (%f,%f), (%f,%f)\n", temp->getPrev()->head()[0], temp->getPrev()->head()[1], temp->head()[0], temp->head()[1], temp->tail()[0], temp->tail()[1]); - if(ret == NULL) - { - ret = new monoChain(prevCusp, temp); - } - else - ret->insert(new monoChain(prevCusp, temp)); - prevCusp = temp; - } - } - ret->insert(new monoChain(prevCusp, firstCusp)); - - return ret; -} - -monoChain* directedLineLoopListToMonoChainLoopList(directedLine* list) -{ - directedLine* temp; - monoChain* mc; - monoChain* mcEnd; - mc = directedLineLoopToMonoChainLoop(list); - mcEnd = mc; - for(temp = list->getNextPolygon(); temp != NULL; temp = temp->getNextPolygon()) - { - monoChain *newLoop = directedLineLoopToMonoChainLoop(temp); - mcEnd->setNextPolygon(newLoop); - mcEnd = newLoop; - } - return mc; -} - -/*compare two edges of a polygon. - *edge A < edge B if there is a horizontal line so that the intersection - *with A is to the left of the intersection with B. - *This function is used in sweepY for the dynamic search tree insertion to - *order the edges. - * Implementation: (x_1,y_1) and (x_2, y_2) - */ -static Int compEdges(directedLine *e1, directedLine *e2) -{ - Real* head1 = e1->head(); - Real* tail1 = e1->tail(); - Real* head2 = e2->head(); - Real* tail2 = e2->tail(); -/* - Real h10 = head1[0]; - Real h11 = head1[1]; - Real t10 = tail1[0]; - Real t11 = tail1[1]; - Real h20 = head2[0]; - Real h21 = head2[1]; - Real t20 = tail2[0]; - Real t21 = tail2[1]; -*/ - Real e1_Ymax, e1_Ymin, e2_Ymax, e2_Ymin; -/* - if(h11>t11) { - e1_Ymax= h11; - e1_Ymin= t11; - } - else{ - e1_Ymax = t11; - e1_Ymin = h11; - } - - if(h21>t21) { - e2_Ymax= h21; - e2_Ymin= t21; - } - else{ - e2_Ymax = t21; - e2_Ymin = h21; - } -*/ - - if(head1[1]>tail1[1]) { - e1_Ymax= head1[1]; - e1_Ymin= tail1[1]; - } - else{ - e1_Ymax = tail1[1]; - e1_Ymin = head1[1]; - } - - if(head2[1]>tail2[1]) { - e2_Ymax= head2[1]; - e2_Ymin= tail2[1]; - } - else{ - e2_Ymax = tail2[1]; - e2_Ymin = head2[1]; - } - - /*Real e1_Ymax = max(head1[1], tail1[1]);*/ /*max(e1->head()[1], e1->tail()[1]);*/ - /*Real e1_Ymin = min(head1[1], tail1[1]);*/ /*min(e1->head()[1], e1->tail()[1]);*/ - /*Real e2_Ymax = max(head2[1], tail2[1]);*/ /*max(e2->head()[1], e2->tail()[1]);*/ - /*Real e2_Ymin = min(head2[1], tail2[1]);*/ /*min(e2->head()[1], e2->tail()[1]);*/ - - Real Ymax = min(e1_Ymax, e2_Ymax); - Real Ymin = max(e1_Ymin, e2_Ymin); - - Real y = 0.5*(Ymax + Ymin); - -/* Real x1 = intersectHoriz(e1->head()[0], e1->head()[1], e1->tail()[0], e1->tail()[1], y); - Real x2 = intersectHoriz(e2->head()[0], e2->head()[1], e2->tail()[0], e2->tail()[1], y); -*/ -/* - Real x1 = intersectHoriz(h10, h11, t10, t11, y); - Real x2 = intersectHoriz(h20, h21, t20, t21, y); -*/ - Real x1 = intersectHoriz(head1[0], head1[1], tail1[0], tail1[1], y); - Real x2 = intersectHoriz(head2[0], head2[1], tail2[0], tail2[1], y); - - if(x1<= x2) return -1; - else return 1; -} - -Int compChains(monoChain* mc1, monoChain* mc2) -{ - Real y; - assert(mc1->isKey || mc2->isKey); - if(mc1->isKey) - y = mc1->keyY; - else - y = mc2->keyY; - directedLine *d1 = mc1->find(y); - directedLine *d2 = mc2->find(y); - mc2->find(y); -// Real x1 = mc1->chainIntersectHoriz(y); -// Real x2 = mc2->chainIntersectHoriz(y); - return compEdges(d1, d2); -} - -//this function modifies current for efficiency -directedLine* monoChain::find(Real y) -{ - directedLine *ret; - directedLine *temp; - assert(current->head()[1] <= y); - if(isIncrease) - { - assert(chainTail->head()[1] >=y); - for(temp=current; temp!=chainTail; temp = temp->getNext()) - { - if(temp->head()[1] > y) - break; - } - current = temp->getPrev(); - ret = current; - } - else - { - for(temp=current; temp != chainHead; temp = temp->getPrev()) - { - if(temp->head()[1] > y) - break; - } - current = temp->getNext(); - ret = temp; - } - return ret; -} - -void monoChain::printOneChain() -{ - directedLine* temp; - for(temp = chainHead; temp != chainTail; temp = temp->getNext()) - { - printf("(%f,%f) ", temp->head()[0], temp->head()[1]); - } - printf("(%f,%f) \n", chainTail->head()[0], chainTail->head()[1]); -} - -void monoChain::printChainLoop() -{ - monoChain* temp; - this->printOneChain(); - for(temp = next; temp != this; temp = temp->next) - { - temp->printOneChain(); - } - printf("\n"); -} - -void monoChain::printAllLoops() -{ - monoChain* temp; - for(temp=this; temp != NULL; temp = temp->nextPolygon) - temp->printChainLoop(); -} - -//return 1 if error occures -Int MC_sweepY(Int nVertices, monoChain** sortedVertices, sweepRange** ret_ranges) -{ - Int i; - Real keyY; - Int errOccur=0; -//printf("enter MC_sweepY\n"); -//printf("nVertices=%i\n", nVertices); - /*for each vertex in the sorted list, update the binary search tree. - *and store the range information for each vertex. - */ - treeNode* searchTree = NULL; -//printf("nVertices=%i\n", nVertices); - for(i=0; igetHead()->head()[1]; //the sweep line - directedLine *dline = vert->getHead(); - directedLine *dlinePrev = dline->getPrev(); - if(isBelow(dline, dline) && isBelow(dline, dlinePrev)) - { -//printf("case 1\n"); - //thisisKey = 1; - vert->keyY = keyY; - treeNode* thisNode = TreeNodeFind(searchTree, vert, (Int (*) (void *, void *))compChains); - vert->isKey = 0; - - vert->getPrev()->isKey = 1; - vert->getPrev()->keyY = keyY; - treeNode* prevNode = TreeNodeFind(searchTree, vert->getPrev(), (Int (*) (void *, void *))compChains); - vert->getPrev()->isKey = 0; - - if(cuspType(dline) == 1)//interior cusp - { - - treeNode* leftEdge = TreeNodePredecessor(prevNode); - treeNode* rightEdge = TreeNodeSuccessor(thisNode); - if(leftEdge == NULL || rightEdge == NULL) - { - errOccur = 1; - goto JUMP_HERE; - } - - directedLine* leftEdgeDline = ((monoChain* ) leftEdge->key)->find(keyY); - - - - directedLine* rightEdgeDline = ((monoChain* ) rightEdge->key)->find(keyY); - - ret_ranges[i] = sweepRangeMake(leftEdgeDline, 1, rightEdgeDline, 1); - } - else /*exterior cusp*/ - { - ret_ranges[i] = sweepRangeMake( dline, 1, dlinePrev, 1); - } - - searchTree = TreeNodeDeleteSingleNode(searchTree, thisNode); - searchTree = TreeNodeDeleteSingleNode(searchTree, prevNode); - - } - else if(isAbove(dline, dline) && isAbove(dline, dlinePrev)) - { -//printf("case 2\n"); - //insert both edges - treeNode* thisNode = TreeNodeMake(vert); - treeNode* prevNode = TreeNodeMake(vert->getPrev()); - - vert->isKey = 1; - vert->keyY = keyY; - searchTree = TreeNodeInsert(searchTree, thisNode, (Int (*) (void *, void *))compChains); - vert->isKey = 0; - - vert->getPrev()->isKey = 1; - vert->getPrev()->keyY = keyY; - searchTree = TreeNodeInsert(searchTree, prevNode, (Int (*) (void *, void *))compChains); - vert->getPrev()->isKey = 0; - - if(cuspType(dline) == 1) //interior cusp - { -//printf("cuspType is 1\n"); - treeNode* leftEdge = TreeNodePredecessor(thisNode); - treeNode* rightEdge = TreeNodeSuccessor(prevNode); - if(leftEdge == NULL || rightEdge == NULL) - { - errOccur = 1; - goto JUMP_HERE; - } -//printf("leftEdge is %i, rightEdge is %i\n", leftEdge, rightEdge); - directedLine* leftEdgeDline = ((monoChain*) leftEdge->key)->find(keyY); - directedLine* rightEdgeDline = ((monoChain*) rightEdge->key)->find(keyY); - ret_ranges[i] = sweepRangeMake( leftEdgeDline, 1, rightEdgeDline, 1); - } - else //exterior cusp - { -//printf("cuspType is not 1\n"); - ret_ranges[i] = sweepRangeMake(dlinePrev, 1, dline, 1); - } - } - else - { -//printf("%i,%i\n", isAbove(dline, dline), isAbove(dline, dlinePrev)); - errOccur = 1; -#if 1 - goto JUMP_HERE; -#else - fprintf(stderr, "error in MC_sweepY\n"); - exit(1); -#endif - } - } - - JUMP_HERE: - //finally clean up space: delete the search tree - TreeNodeDeleteWholeTree(searchTree); - return errOccur; -} - -void MC_findDiagonals(Int total_num_edges, monoChain** sortedVertices, - sweepRange** ranges, Int& num_diagonals, - directedLine** diagonal_vertices) -{ - Int i,j,k; - k=0; - //reset 'current' of all the monoChains - for(i=0; iresetCurrent(); - - for(i=0; igetHead(); - directedLine* thisEdge = vert; - directedLine* prevEdge = vert->getPrev(); - if(isBelow(vert, thisEdge) && isBelow(vert, prevEdge) && compEdges(prevEdge, thisEdge)<0) - { - //this is an upward interior cusp - diagonal_vertices[k++] = vert; - - directedLine* leftEdge = ranges[i]->left; - directedLine* rightEdge = ranges[i]->right; - - directedLine* leftVert = leftEdge; - directedLine* rightVert = rightEdge->getNext(); - assert(leftVert->head()[1] >= vert->head()[1]); - assert(rightVert->head()[1] >= vert->head()[1]); - directedLine* minVert = (leftVert->head()[1] <= rightVert->head()[1])?leftVert:rightVert; - Int found = 0; - for(j=i+1; jgetHead()->head()[1] > minVert->head()[1]) - break; - - if(sweepRangeEqual(ranges[i], ranges[j])) - { - found = 1; - break; - } - } - - if(found) - diagonal_vertices[k++] = sortedVertices[j]->getHead(); - else - diagonal_vertices[k++] = minVert; - } - else if(isAbove(vert, thisEdge) && isAbove(vert, prevEdge) && compEdges(prevEdge, thisEdge)>0) - { - //downward interior cusp - diagonal_vertices[k++] = vert; - directedLine* leftEdge = ranges[i]->left; - directedLine* rightEdge = ranges[i]->right; - directedLine* leftVert = leftEdge->getNext(); - directedLine* rightVert = rightEdge; - assert(leftVert->head()[1] <= vert->head()[1]); - assert(rightVert->head()[1] <= vert->head()[1]); - directedLine* maxVert = (leftVert->head()[1] > rightVert->head()[1])? leftVert:rightVert; - Int found=0; - for(j=i-1; j>=0; j--) - { - if(sortedVertices[j]->getHead()->head()[1] < maxVert->head()[1]) - break; - if(sweepRangeEqual(ranges[i], ranges[j])) - { - found = 1; - break; - } - } - if(found) - diagonal_vertices[k++] = sortedVertices[j]->getHead(); - else - diagonal_vertices[k++] = maxVert; - } - } - num_diagonals = k/2; -} - -directedLine* MC_partitionY(directedLine *polygons, sampledLine **retSampledLines) -{ -//printf("enter mc_partitionY\n"); - Int total_num_chains = 0; - monoChain* loopList = directedLineLoopListToMonoChainLoopList(polygons); - monoChain** array = loopList->toArrayAllLoops(total_num_chains); - - if(total_num_chains<=2) //there is just one single monotone polygon - { - loopList->deleteLoopList(); - free(array); - *retSampledLines = NULL; - return polygons; - } - -//loopList->printAllLoops(); -//printf("total_num_chains=%i\n", total_num_chains); - quicksort( (void**)array, 0, total_num_chains-1, (Int (*)(void*, void*))compChainHeadInY); -//printf("after quicksort\n"); - - sweepRange** ranges = (sweepRange**)malloc(sizeof(sweepRange*) * (total_num_chains)); - assert(ranges); - - if(MC_sweepY(total_num_chains, array, ranges)) - { - loopList->deleteLoopList(); - free(array); - *retSampledLines = NULL; - return NULL; - } -//printf("after MC_sweepY\n"); - - - Int num_diagonals; - /*number diagonals is < total_num_edges*total_num_edges*/ - directedLine** diagonal_vertices = (directedLine**) malloc(sizeof(directedLine*) * total_num_chains*2/*total_num_edges*/); - assert(diagonal_vertices); - -//printf("before call MC_findDiagonales\n"); - - MC_findDiagonals(total_num_chains, array, ranges, num_diagonals, diagonal_vertices); -//printf("after call MC_findDia, num_diagnla=%i\n", num_diagonals); - - directedLine* ret_polygons = polygons; - sampledLine* newSampledLines = NULL; - Int i,k; - - num_diagonals=deleteRepeatDiagonals(num_diagonals, diagonal_vertices, diagonal_vertices); - - - -//drawDiagonals(num_diagonals, diagonal_vertices); -//printf("diagoanls are \n"); -//for(i=0; ihead()[0], diagonal_vertices[2*i]->head()[1]); -// printf("**(%f,%f)\n", diagonal_vertices[2*i+1]->head()[0], diagonal_vertices[2*i+1]->head()[1]); -// } - - Int *removedDiagonals=(Int*)malloc(sizeof(Int) * num_diagonals); - for(i=0; ifindRoot(); - directedLine *root2 = v2->findRoot(); - assert(root1); - assert(root2); -*/ - -directedLine* root1 = v1->rootLinkFindRoot(); -directedLine* root2 = v2->rootLinkFindRoot(); - - if(root1 != root2) - { - - removedDiagonals[i] = 1; - sampledLine* generatedLine; - - - - v1->connectDiagonal(v1,v2, &ret_p1, &ret_p2, &generatedLine, ret_polygons); - - - - newSampledLines = generatedLine->insert(newSampledLines); -/* - ret_polygons = ret_polygons->cutoffPolygon(root1); - - ret_polygons = ret_polygons->cutoffPolygon(root2); - ret_polygons = ret_p1->insertPolygon(ret_polygons); -root1->rootLinkSet(ret_p1); -root2->rootLinkSet(ret_p1); -ret_p1->rootLinkSet(NULL); -ret_p2->rootLinkSet(ret_p1); -*/ - ret_polygons = ret_polygons->cutoffPolygon(root2); - - - -root2->rootLinkSet(root1); -ret_p1->rootLinkSet(root1); -ret_p2->rootLinkSet(root1); - - /*now that we have connected the diagonal v1 and v2, - *we have to check those unprocessed diagonals which - *have v1 or v2 as an end point. Notice that the head of v1 - *has the same coodinates as the head of v2->prev, and the head of - *v2 has the same coordinate as the head of v1->prev. - *Suppose these is a diagonal (v1, x). If (v1,x) is still a valid - *diagonal, then x should be on the left hand side of the directed line: *v1->prev->head -- v1->head -- v1->tail. Otherwise, (v1,x) should be - *replaced by (v2->prev, x), that is, x is on the left of - * v2->prev->prev->head, v2->prev->head, v2->prev->tail. - */ - Int ii, kk; - for(ii=0, kk=0; iiprev->head:v1->head:v1->tail*/ - if(! pointLeft2Lines(v1->getPrev()->head(), - v1->head(), v1->tail(), d2->head())) - { -/* - assert(pointLeft2Lines(v2->getPrev()->getPrev()->head(), - v2->getPrev()->head(), - v2->getPrev()->tail(), d2->head())); -*/ - diagonal_vertices[kk] = v2->getPrev(); - } - } - if(d1 == v2) { - /*check if d2 is to left of v2->prev->head:v2->head:v2->tail*/ - if(! pointLeft2Lines(v2->getPrev()->head(), - v2->head(), v2->tail(), d2->head())) - { -/* - assert(pointLeft2Lines(v1->getPrev()->getPrev()->head(), - v1->getPrev()->head(), - v1->getPrev()->tail(), d2->head())); -*/ - diagonal_vertices[kk] = v1->getPrev(); - } - } - /*check d2 and replace diagonal_vertices[k+1] if necessary*/ - if(d2 == v1) { - /*check if d1 is to left of v1->prev->head:v1->head:v1->tail*/ - if(! pointLeft2Lines(v1->getPrev()->head(), - v1->head(), v1->tail(), d1->head())) - { -/* assert(pointLeft2Lines(v2->getPrev()->getPrev()->head(), - v2->getPrev()->head(), - v2->getPrev()->tail(), d1->head())); -*/ - diagonal_vertices[kk+1] = v2->getPrev(); - } - } - if(d2 == v2) { - /*check if d1 is to left of v2->prev->head:v2->head:v2->tail*/ - if(! pointLeft2Lines(v2->getPrev()->head(), - v2->head(), v2->tail(), d1->head())) - { -/* assert(pointLeft2Lines(v1->getPrev()->getPrev()->head(), - v1->getPrev()->head(), - v1->getPrev()->tail(), d1->head())); -*/ - diagonal_vertices[kk+1] = v1->getPrev(); - } - } - } -}/*end if (root1 not equal to root 2)*/ -} - - /*second pass, now all diagoals should belong to the same polygon*/ -//printf("second pass: \n"); - -// for(i=0; ifindRoot(); -/* - directedLine *root2 = v2->findRoot(); - - - - assert(root1); - assert(root2); - assert(root1 == root2); - */ - sampledLine* generatedLine; - - - - v1->connectDiagonal(v1,v2, &ret_p1, &ret_p2, &generatedLine, ret_polygons); - newSampledLines = generatedLine->insert(newSampledLines); - - ret_polygons = ret_polygons->cutoffPolygon(root1); - - ret_polygons = ret_p1->insertPolygon(ret_polygons); - - ret_polygons = ret_p2->insertPolygon(ret_polygons); - - - - for(Int j=i+1; jsamePolygon(temp1, temp2)) - { - /*if temp1 and temp2 are in different polygons, - *then one of them must be v1 or v2. - */ - - - - assert(temp1==v1 || temp1 == v2 || temp2==v1 || temp2 ==v2); - if(temp1==v1) - { - diagonal_vertices[2*j] = v2->getPrev(); - } - if(temp2==v1) - { - diagonal_vertices[2*j+1] = v2->getPrev(); - } - if(temp1==v2) - { - diagonal_vertices[2*j] = v1->getPrev(); - } - if(temp2==v2) - { - diagonal_vertices[2*j+1] = v1->getPrev(); - } - } - } - } - - } - - - //clean up - loopList->deleteLoopList(); - free(array); - free(ranges); - free(diagonal_vertices); - free(removedDiagonals); - - *retSampledLines = newSampledLines; - return ret_polygons; -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoChain.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoChain.h deleted file mode 100644 index 4e58e44d2..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoChain.h +++ /dev/null @@ -1,110 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoChain.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _MONO_CHAIN_H -#define _MONO_CHAIN_H - -#include "directedLine.h" -#include "partitionY.h" - -class monoChain; - -class monoChain{ - directedLine* chainHead; - directedLine* chainTail; - monoChain* next; - monoChain* prev; - monoChain* nextPolygon; //a list of polygons - - //cached informatin - //bounding box - Real minX, maxX, minY, maxY; - Int isIncrease; - - //for efficiently comparing two chains - - directedLine* current; - -public: - monoChain(directedLine* cHead, directedLine* cTail); - ~monoChain() {} - - inline void setNext(monoChain* n) {next = n;} - inline void setPrev(monoChain* p) {prev = p;} - inline void setNextPolygon(monoChain* np) {nextPolygon = np;} - inline monoChain* getNext() {return next;} - inline monoChain* getPrev() {return prev;} - inline directedLine* getHead() {return chainHead;} - inline directedLine* getTail() {return chainTail;} - - inline void resetCurrent() { current = ((isIncrease==1)? chainHead:chainTail);} - - void deleteLoop(); - void deleteLoopList(); - - //insert a new chain between prev and this - void insert(monoChain* nc); - - Int numChainsSingleLoop(); - Int numChainsAllLoops(); - monoChain** toArrayAllLoops(Int& num_chains); - Int toArraySingleLoop(monoChain** array, Int index); - - Int isKey; - Real keyY; //the current horizotal line - Real chainIntersectHoriz(Real y); //updates current incrementally for efficiency - directedLine* find(Real y);//find dline so that y intersects dline. - - void printOneChain(); - void printChainLoop(); - void printAllLoops(); - -}; - -monoChain* directedLineLoopToMonoChainLoop(directedLine* loop); -monoChain* directedLineLoopListToMonoChainLoopList(directedLine* list); -Int MC_sweepY(Int nVertices, monoChain** sortedVertices, sweepRange** ret_ranges); - -void MC_findDiagonals(Int total_num_edges, monoChain** sortedVertices, - sweepRange** ranges, Int& num_diagonals, - directedLine** diagonal_vertices); - -directedLine* MC_partitionY(directedLine *polygons, sampledLine **retSampledLines); - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoPolyPart.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoPolyPart.cc deleted file mode 100644 index e8c233fc4..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoPolyPart.cc +++ /dev/null @@ -1,300 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* - *monoPolyPart.C - * - *To partition a v-monotone polygon into some uv-monotone polygons. - *The algorithm is different from the general monotone partition algorithm. - *while the general monotone partition algorithm works for this special case, - *but it is more expensive (O(nlogn)). The algorithm implemented here takes - *advantage of the fact that the input is a v-monotone polygon and it is - *conceptually simpler and computationally cheaper (a linear time algorithm). - *The algorithm is described in Zicheng Liu's paper - * "Quality-Oriented Linear Time Tessellation". - */ - -#include -#include -#include "directedLine.h" -#include "monoPolyPart.h" - -/*a vertex is u_maximal if both of its two neightbors are to the left of this - *vertex - */ -static Int is_u_maximal(directedLine* v) -{ - if (compV2InX(v->getPrev()->head(), v->head()) == -1 && - compV2InX(v->getNext()->head(), v->head()) == -1) - return 1; - else - return 0; -} - -/*a vertex is u_minimal if both of its two neightbors are to the right of this - *vertex - */ -static Int is_u_minimal(directedLine* v) -{ - if (compV2InX(v->getPrev()->head(), v->head()) == 1 && - compV2InX(v->getNext()->head(), v->head()) == 1) - return 1; - else - return 0; -} - -/*poly: a v-monotone polygon - *return: a linked list of uv-monotone polygons. - */ -directedLine* monoPolyPart(directedLine* polygon) -{ - //handle special cases: - if(polygon == NULL) - return NULL; - if(polygon->getPrev() == polygon) - return polygon; - if(polygon->getPrev() == polygon->getNext()) - return polygon; - if(polygon->getPrev()->getPrev() == polygon->getNext()) - return polygon; - - //find the top and bottom vertexes - directedLine *tempV, *topV, *botV; - topV = botV = polygon; - for(tempV = polygon->getNext(); tempV != polygon; tempV = tempV->getNext()) - { - if(compV2InY(topV->head(), tempV->head())<0) { - topV = tempV; - } - if(compV2InY(botV->head(), tempV->head())>0) { - botV = tempV; - } - } - - //initilization - directedLine *A, *B, *C, *D, *G, *H; - //find A:the first u_maximal vertex on the left chain - //and C: the left most vertex between top and A - A = NULL; - C = topV; - for(tempV=topV->getNext(); tempV != botV; tempV = tempV->getNext()) - { - if(tempV->head()[0] < C->head()[0]) - C = tempV; - - if(is_u_maximal(tempV)) - { - A = tempV; - break; - } - } - if(A == NULL) - { - A = botV; - if(A->head()[0] < C->head()[0]) - C = A; - } - - //find B: the first u_minimal vertex on the right chain - //and D: the right most vertex between top and B - B = NULL; - D = topV; - for(tempV=topV->getPrev(); tempV != botV; tempV = tempV->getPrev()) - { - if(tempV->head()[0] > D->head()[0]) - D = tempV; - if(is_u_minimal(tempV)) - { - B = tempV; - break; - } - } - if(B == NULL) - { - B = botV; - if(B->head()[0] > D->head()[0]) - D = B; - } - - //error checking XXX - if(C->head()[0] >= D->head()[0]) - return polygon; - - //find G on the left chain that is right above B - for(tempV=topV; compV2InY(tempV->head(), B->head()) == 1; tempV=tempV->getNext()); - G = tempV->getPrev(); - //find H on the right chain that is right above A - for(tempV=topV; compV2InY(tempV->head(), A->head()) == 1; tempV = tempV->getPrev()); - H = tempV->getNext(); - - //Main Loop - directedLine* ret = NULL; - directedLine* currentPolygon = polygon; - while(1) - { - //if both B and D are equal to botV, then this polygon is already - //u-monotone - if(A == botV && B == botV) - { - ret = currentPolygon->insertPolygon(ret); - return ret; - } - else //not u-monotone - { - directedLine *ret_p1, *ret_p2; - if(compV2InY(A->head(),B->head()) == 1) //A is above B - { - directedLine* E = NULL; - for(tempV = C; tempV != D; tempV = tempV->getPrev()) - { - if(tempV->head()[0] >= A->head()[0]) - { - E = tempV; - break; - } - } - - if(E == NULL) - E = D; - if(E->head()[0]> H->head()[0]) - E = H; - //connect AE and output polygon ECA - polygon->connectDiagonal_2slines(A, E, - &ret_p1, - &ret_p2, - NULL); - ret = ret_p2->insertPolygon(ret); - currentPolygon = ret_p1; - - if(E == D) - D = ret_p1; - if(E == H) - H = ret_p1; - if(G->head()[1] >= A->head()[1]) - G = A; - //update A to be the next u-maxiaml vertex on left chain - //and C the leftmost vertex between the old A and the new A - C = A; - for(tempV = A->getNext(); tempV != botV; tempV = tempV->getNext()) - { - - if(tempV->head()[0] < C->head()[0]) - C = tempV; - if(is_u_maximal(tempV)) - { - A = tempV; - break; - } - } - - if(tempV == botV) - { - A = botV; - if(botV->head()[0] < C->head()[0]) - C = botV; - } - //update H - - if(A == botV) - H = botV; - else - { - for(tempV = H; compV2InY(tempV->head(), A->head()) == 1; tempV = tempV->getPrev()); - H = tempV->getNext(); - } - - } - else //A is below B - { - - directedLine* F = NULL; - for(tempV = D; tempV != C; tempV = tempV->getNext()) - { - if(tempV->head()[0] <= B->head()[0]) - { - F = tempV; - break; - } - } - if(F == NULL) - F = C; - if(F->head()[0] < G->head()[0]) - F = G; - - //connect FB - polygon->connectDiagonal_2slines(F, B, - &ret_p1, - &ret_p2, - NULL); - ret = ret_p2->insertPolygon(ret); - currentPolygon = ret_p1; - B = ret_p1; - if(H ->head()[1] >= B->head()[1]) - H = ret_p1; - - //update B to be the next u-minimal vertex on right chain - //and D the rightmost vertex between the old B and the new B - D = B; - for(tempV = B->getPrev(); tempV != botV; tempV = tempV->getPrev()) - { - if(tempV->head()[0] > D->head()[0]) - D = tempV; - if(is_u_minimal(tempV)) - { - B = tempV; - break; - } - } - if(tempV == botV) - { - B = botV; - if(botV->head()[0] > D->head()[0]) - D = botV; - } - //update G - if(B == botV) - G = botV; - else - { - for(tempV = G; compV2InY(tempV->head(), B->head()) == 1; tempV = tempV->getNext()); - G = tempV->getPrev(); - } - } //end of A is below B - } //end not u-monotone - } //end of main loop -} - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoPolyPart.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoPolyPart.h deleted file mode 100644 index 6fd9cfeee..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoPolyPart.h +++ /dev/null @@ -1,47 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* - *monoPolyPart.h - */ - -#ifndef _MONO_POLY_PART_H -#define _MONO_POLY_PART_H - -class directedLine; - -directedLine* monoPolyPart(directedLine* polygon); - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoTriangulation.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoTriangulation.cc deleted file mode 100644 index 6434bf274..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoTriangulation.cc +++ /dev/null @@ -1,1480 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/04/23 18:42:56 $ $Revision: 1.2 $ -*/ -/* $XFree86$ */ - -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/monoTriangulation.cc,v 1.2 2004/04/23 18:42:56 eich Exp $ -*/ - -#include -#include -#include "glimports.h" -#include "zlassert.h" - -#include "monoTriangulation.h" -#include "polyUtil.h" /*for area*/ -#include "partitionX.h" -#include "monoPolyPart.h" - - - -extern directedLine* polygonConvert(directedLine* polygon); - -/*poly is NOT deleted - */ -void monoTriangulationOpt(directedLine* poly, primStream* pStream) -{ - Int n_cusps; - Int n_edges = poly->numEdges(); - directedLine** cusps = (directedLine**) malloc(sizeof(directedLine*)*n_edges); - assert(cusps); - findInteriorCuspsX(poly, n_cusps, cusps); - if(n_cusps ==0) //u monotine - { - monoTriangulationFun(poly, compV2InX, pStream); - } - else if(n_cusps == 1) // one interior cusp - { - directedLine* new_polygon = polygonConvert(cusps[0]); - directedLine* other = findDiagonal_singleCuspX(new_polygon); - // should NOT be null unless there are self-intersecting - //trim curves. In that case, we don't want to core dump, instead, - //we triangulate anyway, and print out error message. - if(other == NULL) - { - monoTriangulationFun(poly, compV2InX, pStream); - } - else - { - directedLine* ret_p1; - directedLine* ret_p2; - - new_polygon->connectDiagonal_2slines(new_polygon, other, - &ret_p1, - &ret_p2, - new_polygon); - - monoTriangulationFun(ret_p1, compV2InX, pStream); - monoTriangulationFun(ret_p2, compV2InX, pStream); - - ret_p1->deleteSinglePolygonWithSline(); - ret_p2->deleteSinglePolygonWithSline(); - } - } - else - { - //we need a general partitionX funtion (supposed to be in partitionX.C, - //not implemented yet. XXX - monoTriangulationFun(poly, compV2InY, pStream); - } - - free(cusps); -} - -void monoTriangulationRecOpt(Real* topVertex, Real* botVertex, - vertexArray* left_chain, Int left_current, - vertexArray* right_chain, Int right_current, - primStream* pStream) -{ - Int i,j; - Int n_left = left_chain->getNumElements(); - Int n_right = right_chain->getNumElements(); - if(left_current>= n_left-1 || - right_current>= n_right-1) - { - monoTriangulationRec(topVertex, botVertex, left_chain, left_current, - right_chain, right_current, pStream); - return; - } - //now both left and right have at least two vertices each. - Real left_v = left_chain->getVertex(left_current)[1]; - Real right_v = right_chain->getVertex(right_current)[1]; - - if(left_v <= right_v) //first left vertex is below right - { - //find the last vertex of right which is above or equal to left - for(j=right_current; j<=n_right-1; j++) - { - if(right_chain->getVertex(j)[1] < left_v) - break; - } - monoTriangulationRecGen(topVertex, left_chain->getVertex(left_current), - left_chain, left_current, left_current, - right_chain, right_current, j-1, - pStream); - monoTriangulationRecOpt(right_chain->getVertex(j-1), - botVertex, - left_chain, left_current, - right_chain, j, - pStream); - } - else //first right vertex is strictly below left - { - //find the last vertex of left which is strictly above right - for(i=left_current; i<=n_left-1; i++) - { - if(left_chain->getVertex(i)[1] <= right_v) - break; - } - monoTriangulationRecGen(topVertex, right_chain->getVertex(right_current), - left_chain, left_current, i-1, - right_chain, right_current, right_current, - pStream); - monoTriangulationRecOpt(left_chain->getVertex(i-1), - botVertex, - left_chain, i, - right_chain, right_current, - 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) -{ - pStream->triangle(topVertex, inc_chain->getVertex(inc_current), dec_chain->getVertex(dec_current)); - -/*printf("**(%f,%f)\n", inc_chain->getArray()[0][0],inc_chain->getArray()[0][1]);*/ - triangulateXYMonoTB(inc_end-inc_current+1, inc_chain->getArray()+inc_current, dec_end-dec_current+1, dec_chain->getArray()+dec_current, pStream); - - pStream->triangle(botVertex, dec_chain->getVertex(dec_end), inc_chain->getVertex(inc_end)); -} - - -/*n_left>=1 - *n_right>=1 - *the strip is going top to bottom. compared to the funtion - * triangulateXYmono() - */ -void triangulateXYMonoTB(Int n_left, Real** leftVerts, - Int n_right, Real** rightVerts, - primStream* pStream) -{ - - - Int i,j,k,l; - Real* topMostV; - - assert(n_left>=1 && n_right>=1); - if(leftVerts[0][1] >= rightVerts[0][1]) - { - i=1; - j=0; - topMostV = leftVerts[0]; - } - else - { - i=0; - j=1; - topMostV = rightVerts[0]; - } - - while(1) - { - if(i >= n_left) /*case1: no more in left*/ - { - - if(jbegin(); - pStream->insert(topMostV); - for(k=n_right-1; k>=j; k--) - pStream->insert(rightVerts[j]); - - pStream->end(PRIMITIVE_STREAM_FAN); - } - - break; - } - else if(j>= n_right) /*case2: no more in right*/ - { - - if(ibegin(); - pStream->insert(topMostV); - - for(k=i; kinsert(leftVerts[k]); - - pStream->end(PRIMITIVE_STREAM_FAN); - } - - break; - } - else /* case3: neither is empty, plus the topMostV, there is at least one triangle to output*/ - { - - if(leftVerts[i][1] >= rightVerts[j][1]) - { - pStream->begin(); - pStream->insert(rightVerts[j]); /*the origin of this fan*/ - - pStream->insert(topMostV); - - /*find the last k>=i such that - *leftverts[k][1] >= rightverts[j][1] - */ - k=i; - while(kinsert(leftVerts[l]); - } - - pStream->end(PRIMITIVE_STREAM_FAN); - //update i for next loop - i = k+1; - topMostV = leftVerts[k]; - - } - else /*leftVerts[i][1] < rightVerts[j][1]*/ - { - pStream->begin(); - pStream->insert(leftVerts[i]);/*the origion of this fan*/ - - /*find the last k>=j such that - *rightverts[k][1] > leftverts[i][1]*/ - k=j; - while(k< n_right) - { - if(rightVerts[k][1] <= leftVerts[i][1]) - break; - k++; - } - k--; - - for(l=k; l>= j; l--) - pStream->insert(rightVerts[l]); - - pStream->insert(topMostV); - pStream->end(PRIMITIVE_STREAM_FAN); - j=k+1; - topMostV = rightVerts[j-1]; - } - } - } -} - -#if 0 -static int chainConvex(vertexArray* inc_chain, Int inc_current, Int inc_end) -{ - Int i; - //if there are no more than 2 vertices, return 1 - if(inc_current >= inc_end-1) return 1; - for(i=inc_current; i<= inc_end-2; i++) - { - if(area(inc_chain->getVertex(i), inc_chain->getVertex(i+1), inc_chain->getVertex(i+2)) <0) - return 0; - } - return 1; -} - -static int chainConcave(vertexArray* dec_chain, Int dec_current, Int dec_end) -{ - Int i; - //if there are no more than 2 vertices, return 1 - if(dec_current >= dec_end -1) return 1; - for(i=dec_current; i<=dec_end-2; i++) - { - if(area(dec_chain->getVertex(i), dec_chain->getVertex(i+1), dec_chain->getVertex(i+2)) >0) - return 0; - } - return 1; -} -#endif - -void monoTriangulationRecGenInU(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) -{ - Int i; - //copy this to a polygon: directedLine Lioop - sampledLine* sline; - directedLine* dline; - directedLine* poly; - - if(inc_current <= inc_end) //at least one vertex in inc_chain - { - sline = new sampledLine(topVertex, inc_chain->getVertex(inc_current)); - poly = new directedLine(INCREASING, sline); - for(i=inc_current; i<=inc_end-1; i++) - { - sline = new sampledLine(inc_chain->getVertex(i), inc_chain->getVertex(i+1)); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - } - sline = new sampledLine(inc_chain->getVertex(inc_end), botVertex); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - } - else //inc_chian is empty - { - sline = new sampledLine(topVertex, botVertex); - dline = new directedLine(INCREASING, sline); - poly = dline; - } - - assert(poly != NULL); - - if(dec_current <= dec_end) //at least on vertex in dec_Chain - { - sline = new sampledLine(botVertex, dec_chain->getVertex(dec_end)); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - for(i=dec_end; i>dec_current; i--) - { - sline = new sampledLine(dec_chain->getVertex(i), dec_chain->getVertex(i-1)); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - } - sline = new sampledLine(dec_chain->getVertex(dec_current), topVertex); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - } - else //dec_chain is empty - { - sline = new sampledLine(botVertex, topVertex); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - } - - { - Int n_cusps; - Int n_edges = poly->numEdges(); - directedLine** cusps = (directedLine**) malloc(sizeof(directedLine*)*n_edges); - assert(cusps); - findInteriorCuspsX(poly, n_cusps, cusps); - - if(n_cusps ==0) //u monotine - { - monoTriangulationFun(poly, compV2InX, pStream); - } - else if(n_cusps == 1) // one interior cusp - { - directedLine* new_polygon = polygonConvert(cusps[0]); - directedLine* other = findDiagonal_singleCuspX(new_polygon); - // should NOT be null unless there are self-intersecting - //trim curves. In that case, we don't want to core dump, instead, - //we triangulate anyway, and print out error message. - if(other == NULL) - { - monoTriangulationFun(poly, compV2InX, pStream); - } - else - { - directedLine* ret_p1; - directedLine* ret_p2; - - new_polygon->connectDiagonal_2slines(new_polygon, other, - &ret_p1, - &ret_p2, - new_polygon); - - monoTriangulationFun(ret_p1, compV2InX, pStream); - monoTriangulationFun(ret_p2, compV2InX, pStream); - - ret_p1->deleteSinglePolygonWithSline(); - ret_p2->deleteSinglePolygonWithSline(); - } - } - else - { - //we need a general partitionX funtion (supposed to be in partitionX.C, - //not implemented yet. XXX - //monoTriangulationFun(poly, compV2InY, pStream); - - directedLine* new_polygon = polygonConvert(poly); - directedLine* list = monoPolyPart(new_polygon); - for(directedLine* temp = list; temp != NULL; temp = temp->getNextPolygon()) - { - monoTriangulationFun(temp, compV2InX, pStream); - } - //clean up - list->deletePolygonListWithSline(); - } - - free(cusps); - /* - if(numInteriorCuspsX(poly) == 0) //is u monotone - monoTriangulationFun(poly, compV2InX, pStream); - else //it is not u motone - monoTriangulationFun(poly, compV2InY, pStream); - */ - //clean up space - poly->deleteSinglePolygonWithSline(); - return; - } - -#if 0 - //apparently the following code is not reachable, - //it is for test purpose - if(inc_current > inc_end || dec_current>dec_end) - { - monoTriangulationRecGen(topVertex, botVertex, inc_chain, inc_current, inc_end, - dec_chain, dec_current, dec_end, - pStream); - return; - } - - - if( - area(dec_chain->getVertex(dec_current), - topVertex, - inc_chain->getVertex(inc_current)) >=0 - && chainConvex(inc_chain, inc_current, inc_end) - && chainConcave(dec_chain, dec_current, dec_end) - && area(inc_chain->getVertex(inc_end), botVertex, dec_chain->getVertex(dec_end)) >=0 - ) - { - monoTriangulationRecFunGen(topVertex, botVertex, - inc_chain, inc_current, inc_end, - dec_chain, dec_current, dec_end, - compV2InX, pStream); - } - else - { - monoTriangulationRecGen(topVertex, botVertex, inc_chain, inc_current, inc_end, - dec_chain, dec_current, dec_end, - pStream); - } -#endif -} - -/*if inc_current>inc_end, then inc_chain has no points to be considered - *same for dec_chain - */ -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) -{ - Real** inc_array ; - Real** dec_array ; - Int i; - - if(inc_current > inc_end && dec_current>dec_end) - return; - else if(inc_current>inc_end) /*no more vertices on inc_chain*/ - { - dec_array = dec_chain->getArray(); - reflexChain rChain(100,0); - /*put the top vertex into the reflex chain*/ - rChain.processNewVertex(topVertex, pStream); - /*process all the vertices on the dec_chain*/ - for(i=dec_current; i<=dec_end; i++){ - rChain.processNewVertex(dec_array[i], pStream); - } - /*process the bottom vertex*/ - rChain.processNewVertex(botVertex, pStream); - } - else if(dec_current> dec_end) /*no more vertices on dec_chain*/ - { - inc_array = inc_chain->getArray(); - - reflexChain rChain(100,1); - /*put the top vertex into the reflex chain*/ - rChain.processNewVertex(topVertex, pStream); - /*process all the vertices on the inc_chain*/ - for(i=inc_current; i<=inc_end; i++){ - rChain.processNewVertex(inc_array[i], pStream); - } - /*process the bottom vertex*/ - rChain.processNewVertex(botVertex, pStream); - } - else /*neither chain is empty*/ - { - inc_array = inc_chain -> getArray(); - dec_array = dec_chain -> getArray(); - - /*if top of inc_chain is 'lower' than top of dec_chain, process all the - *vertices on the dec_chain which are higher than top of inc_chain - */ - if(compV2InY(inc_array[inc_current], dec_array[dec_current]) <= 0) - { - - reflexChain rChain(100, 0); - rChain.processNewVertex(topVertex, pStream); - for(i=dec_current; i<=dec_end; i++) - { - if(compV2InY(inc_array[inc_current], dec_array[i]) <= 0) - rChain.processNewVertex(dec_array[i], pStream); - else - break; - } - rChain.outputFan(inc_array[inc_current], pStream); - monoTriangulationRecGen(dec_array[i-1], botVertex, - inc_chain, inc_current, inc_end, - dec_chain, i, dec_end, - pStream); - } - else /*compV2InY(inc_array[inc_current], dec_array[dec_current]) > 0*/ - { - - reflexChain rChain(100, 1); - rChain.processNewVertex(topVertex, pStream); - for(i=inc_current; i<=inc_end; i++) - { - if(compV2InY(inc_array[i], dec_array[dec_current]) >0) - rChain.processNewVertex(inc_array[i], pStream); - else - break; - } - rChain.outputFan(dec_array[dec_current], pStream); - monoTriangulationRecGen(inc_array[i-1], botVertex, - inc_chain, i, inc_end, - dec_chain, dec_current,dec_end, - pStream); - } - }/*end case neither is empty*/ -} - -void monoTriangulationFun(directedLine* monoPolygon, Int (*compFun)(Real*, Real*), primStream* pStream) -{ - Int i; - /*find the top vertex, bottom vertex, inccreasing chain, and decreasing chain, - *then call monoTriangulationRec - */ - directedLine* tempV; - directedLine* topV; - directedLine* botV; - topV = botV = monoPolygon; - for(tempV = monoPolygon->getNext(); tempV != monoPolygon; tempV = tempV->getNext()) - { - if(compFun(topV->head(), tempV->head())<0) { - topV = tempV; - } - if(compFun(botV->head(), tempV->head())>0) { - botV = tempV; - } - } - - /*creat increase and decrease chains*/ - vertexArray inc_chain(20); /*this is a dynamic array*/ - for(i=1; i<=topV->get_npoints()-2; i++) { /*the first vertex is the top vertex which doesn't belong to inc_chain*/ - inc_chain.appendVertex(topV->getVertex(i)); - } - for(tempV = topV->getNext(); tempV != botV; tempV = tempV->getNext()) - { - for(i=0; i<=tempV->get_npoints()-2; i++){ - inc_chain.appendVertex(tempV->getVertex(i)); - } - } - - vertexArray dec_chain(20); - for(tempV = topV->getPrev(); tempV != botV; tempV = tempV->getPrev()) - { - for(i=tempV->get_npoints()-2; i>=0; i--){ - dec_chain.appendVertex(tempV->getVertex(i)); - } - } - for(i=botV->get_npoints()-2; i>=1; i--){ - dec_chain.appendVertex(tempV->getVertex(i)); - } - - monoTriangulationRecFun(topV->head(), botV->head(), &inc_chain, 0, &dec_chain, 0, compFun, pStream); - -} - -void monoTriangulation(directedLine* monoPolygon, primStream* pStream) -{ - Int i; - /*find the top vertex, bottom vertex, inccreasing chain, and decreasing chain, - *then call monoTriangulationRec - */ - directedLine* tempV; - directedLine* topV; - directedLine* botV; - topV = botV = monoPolygon; - for(tempV = monoPolygon->getNext(); tempV != monoPolygon; tempV = tempV->getNext()) - { - if(compV2InY(topV->head(), tempV->head())<0) { - topV = tempV; - } - if(compV2InY(botV->head(), tempV->head())>0) { - botV = tempV; - } - } - /*creat increase and decrease chains*/ - vertexArray inc_chain(20); /*this is a dynamic array*/ - for(i=1; i<=topV->get_npoints()-2; i++) { /*the first vertex is the top vertex which doesn't belong to inc_chain*/ - inc_chain.appendVertex(topV->getVertex(i)); - } - for(tempV = topV->getNext(); tempV != botV; tempV = tempV->getNext()) - { - for(i=0; i<=tempV->get_npoints()-2; i++){ - inc_chain.appendVertex(tempV->getVertex(i)); - } - } - - vertexArray dec_chain(20); - for(tempV = topV->getPrev(); tempV != botV; tempV = tempV->getPrev()) - { - for(i=tempV->get_npoints()-2; i>=0; i--){ - dec_chain.appendVertex(tempV->getVertex(i)); - } - } - for(i=botV->get_npoints()-2; i>=1; i--){ - dec_chain.appendVertex(tempV->getVertex(i)); - } - - monoTriangulationRec(topV->head(), botV->head(), &inc_chain, 0, &dec_chain, 0, 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) -{ - assert( inc_chain != NULL); - Real** inc_array ; - - if(inc_smallIndex > inc_largeIndex) - return; //no triangles - if(inc_smallIndex == inc_largeIndex) - { - if(is_increase_chain) - pStream->triangle(inc_chain->getVertex(inc_smallIndex), botVertex, topVertex); - else - pStream->triangle(inc_chain->getVertex(inc_smallIndex), topVertex, botVertex); - return; - } - Int i; - - if(is_increase_chain && botVertex[1] == inc_chain->getVertex(inc_largeIndex)[1]) - { - pStream->triangle(botVertex, inc_chain->getVertex(inc_largeIndex-1), - inc_chain->getVertex(inc_largeIndex)); - monoTriangulation2(topVertex, botVertex, inc_chain, inc_smallIndex, - inc_largeIndex-1, - is_increase_chain, - pStream); - return; - } - else if( (!is_increase_chain) && topVertex[1] == inc_chain->getVertex(inc_smallIndex)[1]) - { - pStream->triangle(topVertex, inc_chain->getVertex(inc_smallIndex+1), - inc_chain->getVertex(inc_smallIndex)); - monoTriangulation2(topVertex, botVertex, inc_chain, inc_smallIndex+1, - inc_largeIndex, is_increase_chain, pStream); - return ; - } - - inc_array = inc_chain->getArray(); - - reflexChain rChain(20,is_increase_chain); /*1 means the chain is increasing*/ - - rChain.processNewVertex(topVertex, pStream); - - for(i=inc_smallIndex; i<=inc_largeIndex; i++){ - rChain.processNewVertex(inc_array[i], pStream); - } - rChain.processNewVertex(botVertex, pStream); - -} - -/*if compFun == compV2InY, top to bottom: V-monotone - *if compFun == compV2InX, right to left: U-monotone - */ -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) -{ - assert( inc_chain != NULL && dec_chain != NULL); - assert( ! (inc_current> inc_end && - dec_current> dec_end)); - Real** inc_array ; - Real** dec_array ; - Int i; - assert( ! ( (inc_chain==NULL) && (dec_chain==NULL))); - - if(inc_current> inc_end) /*no more vertices on inc_chain*/ - { - - dec_array = dec_chain->getArray(); - reflexChain rChain(20,0); - /*put the top vertex into the reflex chain*/ - rChain.processNewVertex(topVertex, pStream); - /*process all the vertices on the dec_chain*/ - for(i=dec_current; i<=dec_end; i++){ - rChain.processNewVertex(dec_array[i], pStream); - } - /*process the bottom vertex*/ - rChain.processNewVertex(botVertex, pStream); - - } - else if(dec_current> dec_end) /*no more vertices on dec_chain*/ - { - inc_array = inc_chain->getArray(); - reflexChain rChain(20,1); - /*put the top vertex into the reflex chain*/ - rChain.processNewVertex(topVertex, pStream); - /*process all the vertices on the inc_chain*/ - for(i=inc_current; i<=inc_end; i++){ - rChain.processNewVertex(inc_array[i], pStream); - } - /*process the bottom vertex*/ - rChain.processNewVertex(botVertex, pStream); - } - else /*neither chain is empty*/ - { - inc_array = inc_chain -> getArray(); - dec_array = dec_chain -> getArray(); - - /*if top of inc_chain is 'lower' than top of dec_chain, process all the - *vertices on the dec_chain which are higher than top of inc_chain - */ - if(compFun(inc_array[inc_current], dec_array[dec_current]) <= 0) - { - - reflexChain rChain(20, 0); - rChain.processNewVertex(topVertex, pStream); - for(i=dec_current; i<=dec_end; i++) - { - if(compFun(inc_array[inc_current], dec_array[i]) <= 0) - rChain.processNewVertex(dec_array[i], pStream); - else - break; - } - rChain.outputFan(inc_array[inc_current], pStream); - monoTriangulationRecFunGen(dec_array[i-1], botVertex, - inc_chain, inc_current, inc_end, - dec_chain, i, dec_end, - compFun, - pStream); - } - else /*compFun(inc_array[inc_current], dec_array[dec_current]) > 0*/ - { - - reflexChain rChain(20, 1); - rChain.processNewVertex(topVertex, pStream); - for(i=inc_current; i<=inc_end; i++) - { - if(compFun(inc_array[i], dec_array[dec_current]) >0) - rChain.processNewVertex(inc_array[i], pStream); - else - break; - } - rChain.outputFan(dec_array[dec_current], pStream); - monoTriangulationRecFunGen(inc_array[i-1], botVertex, - inc_chain, i,inc_end, - dec_chain, dec_current,dec_end, - compFun, - pStream); - } - }/*end case neither is empty*/ -} - -/*if compFun == compV2InY, top to bottom: V-monotone - *if compFun == compV2InX, right to left: U-monotone - */ -void monoTriangulationRecFun(Real* topVertex, Real* botVertex, - vertexArray* inc_chain, Int inc_current, - vertexArray* dec_chain, Int dec_current, - Int (*compFun)(Real*, Real*), - primStream* pStream) -{ - assert( inc_chain != NULL && dec_chain != NULL); - assert( ! (inc_current>=inc_chain->getNumElements() && - dec_current>=dec_chain->getNumElements())); - Int inc_nVertices; - Int dec_nVertices; - Real** inc_array ; - Real** dec_array ; - Int i; - assert( ! ( (inc_chain==NULL) && (dec_chain==NULL))); - - if(inc_current>=inc_chain->getNumElements()) /*no more vertices on inc_chain*/ - { - - dec_array = dec_chain->getArray(); - dec_nVertices = dec_chain->getNumElements(); - reflexChain rChain(20,0); - /*put the top vertex into the reflex chain*/ - rChain.processNewVertex(topVertex, pStream); - /*process all the vertices on the dec_chain*/ - for(i=dec_current; i= dec_chain->getNumElements()) /*no more vertices on dec_chain*/ - { - inc_array = inc_chain->getArray(); - inc_nVertices= inc_chain->getNumElements(); - reflexChain rChain(20,1); - /*put the top vertex into the reflex chain*/ - rChain.processNewVertex(topVertex, pStream); - /*process all the vertices on the inc_chain*/ - for(i=inc_current; i getArray(); - dec_array = dec_chain -> getArray(); - inc_nVertices= inc_chain->getNumElements(); - dec_nVertices= dec_chain->getNumElements(); - /*if top of inc_chain is 'lower' than top of dec_chain, process all the - *vertices on the dec_chain which are higher than top of inc_chain - */ - if(compFun(inc_array[inc_current], dec_array[dec_current]) <= 0) - { - - reflexChain rChain(20, 0); - rChain.processNewVertex(topVertex, pStream); - for(i=dec_current; i 0*/ - { - - reflexChain rChain(20, 1); - rChain.processNewVertex(topVertex, pStream); - for(i=inc_current; i0) - rChain.processNewVertex(inc_array[i], pStream); - else - break; - } - rChain.outputFan(dec_array[dec_current], pStream); - monoTriangulationRecFun(inc_array[i-1], botVertex, - inc_chain, i, - dec_chain, dec_current, - compFun, - pStream); - } - }/*end case neither is empty*/ -} - - -void monoTriangulationRec(Real* topVertex, Real* botVertex, - vertexArray* inc_chain, Int inc_current, - vertexArray* dec_chain, Int dec_current, - primStream* pStream) -{ - assert( inc_chain != NULL && dec_chain != NULL); - assert( ! (inc_current>=inc_chain->getNumElements() && - dec_current>=dec_chain->getNumElements())); - Int inc_nVertices; - Int dec_nVertices; - Real** inc_array ; - Real** dec_array ; - Int i; - assert( ! ( (inc_chain==NULL) && (dec_chain==NULL))); - - if(inc_current>=inc_chain->getNumElements()) /*no more vertices on inc_chain*/ - { - - dec_array = dec_chain->getArray(); - dec_nVertices = dec_chain->getNumElements(); - reflexChain rChain(20,0); - /*put the top vertex into the reflex chain*/ - rChain.processNewVertex(topVertex, pStream); - /*process all the vertices on the dec_chain*/ - for(i=dec_current; i= dec_chain->getNumElements()) /*no more vertices on dec_chain*/ - { - inc_array = inc_chain->getArray(); - inc_nVertices= inc_chain->getNumElements(); - reflexChain rChain(20,1); - /*put the top vertex into the reflex chain*/ - rChain.processNewVertex(topVertex, pStream); - /*process all the vertices on the inc_chain*/ - for(i=inc_current; i getArray(); - dec_array = dec_chain -> getArray(); - inc_nVertices= inc_chain->getNumElements(); - dec_nVertices= dec_chain->getNumElements(); - /*if top of inc_chain is 'lower' than top of dec_chain, process all the - *vertices on the dec_chain which are higher than top of inc_chain - */ - if(compV2InY(inc_array[inc_current], dec_array[dec_current]) <= 0) - { - - reflexChain rChain(20, 0); - rChain.processNewVertex(topVertex, pStream); - for(i=dec_current; i 0*/ - { - - reflexChain rChain(20, 1); - rChain.processNewVertex(topVertex, pStream); - for(i=inc_current; i0) - rChain.processNewVertex(inc_array[i], pStream); - else - break; - } - rChain.outputFan(dec_array[dec_current], pStream); - monoTriangulationRec(inc_array[i-1], botVertex, - inc_chain, i, - dec_chain, dec_current, - pStream); - } - }/*end case neither is empty*/ -} - - - -/* the name here assumes that the polygon is Y-monotone, but - *this function also works for X-monotone polygons. - * a monotne polygon consists of two extrem verteices: topVertex and botVertex, and - *two monotone chains: inc_chain, and dec_chain. The edges of the increasing chain (inc_chain) - *is ordered by following pointer: next, while the edges of the decreasing chain (dec_chain) - *is ordered by following pointer: prev - * inc_index index the vertex which is the toppest of the inc_chain which we are handling currently. - * dec_index index the vertex which is the toppest of the dec_chain which we are handling currently. - */ -void monoTriangulationRec(directedLine* inc_chain, Int inc_index, - directedLine* dec_chain, Int dec_index, - directedLine* topVertex, Int top_index, - directedLine* botVertex, - primStream* pStream) -{ - Int i; - directedLine *temp, *oldtemp; - Int tempIndex, oldtempIndex; - - assert(inc_chain != NULL && dec_chain != NULL); - - if(inc_chain == botVertex) { - reflexChain rChain(20, 0); - rChain.processNewVertex(topVertex->getVertex(top_index), pStream); - for(i=dec_index; i< dec_chain->get_npoints(); i++){ - rChain.processNewVertex(dec_chain->getVertex(i), pStream); - } - for(temp = dec_chain->getPrev(); temp != botVertex; temp = temp->getPrev()) - { - for(i=0; iget_npoints(); i++){ - rChain.processNewVertex(temp->getVertex(i), pStream); - } - } - } - else if(dec_chain==botVertex) { - reflexChain rChain(20, 1); - rChain.processNewVertex(topVertex->getVertex(top_index), pStream); - for(i=inc_index; i< inc_chain->get_npoints(); i++){ - rChain.processNewVertex(inc_chain->getVertex(i), pStream); - } - for(temp = inc_chain->getPrev(); temp != botVertex; temp = temp->getNext()) - { - for(i=0; iget_npoints(); i++){ - rChain.processNewVertex(temp->getVertex(i), pStream); - } - } - } - else /*neither reached the bottom*/{ - if(compV2InY(inc_chain->getVertex(inc_index), dec_chain->getVertex(dec_index)) <=0) { - reflexChain rChain(20, 0); - rChain.processNewVertex(topVertex -> getVertex(top_index), pStream); - temp = dec_chain; - tempIndex = dec_index; - while( compV2InY(inc_chain->getVertex(inc_index), temp->getVertex(tempIndex))<=0) { - oldtemp = temp; - oldtempIndex = tempIndex; - rChain.processNewVertex(temp->getVertex(tempIndex), pStream); - - if(tempIndex == temp->get_npoints()-1){ - tempIndex = 0; - temp = temp->getPrev(); - } - else{ - tempIndex++; - } - } - rChain.outputFan(inc_chain->getVertex(inc_index), pStream); - monoTriangulationRec(inc_chain, inc_index, temp, tempIndex, oldtemp, oldtempIndex, botVertex, pStream); - } - else /* >0*/ { - reflexChain rChain(20, 1); - rChain.processNewVertex(topVertex -> getVertex(top_index), pStream); - temp = inc_chain; - tempIndex = inc_index; - while( compV2InY(temp->getVertex(tempIndex), dec_chain->getVertex(dec_index))>0){ - oldtemp = temp; - oldtempIndex = tempIndex; - rChain.processNewVertex(temp->getVertex(tempIndex), pStream); - - if(tempIndex == temp->get_npoints()-1){ - tempIndex = 0; - temp = temp->getNext(); - } - else{ - tempIndex++; - } - } - rChain.outputFan(dec_chain->getVertex(dec_index), pStream); - monoTriangulationRec(temp, tempIndex, dec_chain, dec_index, oldtemp, oldtempIndex, botVertex, pStream); - } - } /*end case neither reached the bottom*/ -} - -/***************************vertexArray begin here**********************************/ -vertexArray::vertexArray(Real2* vertices, Int nVertices) -{ - Int i; - size = index = nVertices; - array = (Real**) malloc(sizeof(Real*) * nVertices); - assert(array); - for(i=0; i= size){ - Real** temp = (Real**) malloc(sizeof(Real*) * (2*size +1)); - assert(temp); - for(i=0; i= v - * and array[i+1][1] v - *if sartIndex>endIndex, then return endIndex+1. - *otherwise, startIndex<=endIndex, it is assumed that - * 0<=startIndex<=endIndex endIndex) - return endIndex+1; - else if(array[endIndex][1] > v) - return endIndex+1; - else //now array[endIndex][1] <= v - { - for(i=endIndex-1; i>=startIndex; i--) - { - if(array[i][1] > v) - break; - } - return i+1; - } -} - -/*find the first i<=endIndex such that array[i-1][1] >= v - * and array[i][1] < v - *if sartIndex>endIndex, then return endIndex+1. - *otherwise, startIndex<=endIndex, it is assumed that - * 0<=startIndex<=endIndex endIndex) - return endIndex+1; - else if(array[endIndex][1] >= v) - return endIndex+1; - else //now array[endIndex][1] < v - { - for(i=endIndex-1; i>=startIndex; i--) - { - if(array[i][1] >= v) - break; - } - return i+1; - } -} - -/*find the first i>startIndex such that array[i-1][1] > v - * and array[i][1] >=v - *if sartIndex>endIndex, then return startIndex-1. - *otherwise, startIndex<=endIndex, it is assumed that - * 0<=startIndex<=endIndex endIndex) - return startIndex-1; - else if(array[startIndex][1] < v) - return startIndex-1; - else //now array[startIndex][1] >= v - { - - for(i=startIndex; i<=endIndex; i++) - { - if(array[i][1] <= v) - break; - } - if(i>endIndex) // v is strictly below all - return endIndex; - else if(array[i][1] == v) - return i; - else - return i-1; - } - -} - - -/*find the first i>=startIndex such that array[i][1] >= v - * and array[i+1][1] endIndex, then return startIndex-1. - *otherwise, startIndex<=endIndex, it is assumed that - * 0<=startIndex<=endIndex endIndex) - return startIndex-1; - else if(array[startIndex][1] < v) - return startIndex-1; - else //now array[startIndex][1] >= v - { - for(i=startIndex+1; i<=endIndex; i++) - { - if(array[i][1] < v) - break; - } - return i-1; - } -} - -Int vertexArray::findDecreaseChainFromEnd(Int begin, Int end) -{ - Int i = end; - Real prevU = array[i][0]; - Real thisU; - for(i=end-1; i>=begin; i--){ - thisU = array[i][0]; - if(thisU < prevU) - prevU = thisU; - else - break; - } - return i; -} - -//if(V(start) == v, return start, other wise return the -//last i so that V(i)==v -Int vertexArray::skipEqualityFromStart(Real v, Int start, Int end) -{ - Int i; - if(array[start][1] != v) - return start; - //now array[start][1] == v - for(i=start+1; i<= end; i++) - if(array[i][1] != v) - break; - return i-1; -} - - -/***************************vertexArray end****************************************/ - - - -/***************************relfex chain stuff begin here*****************************/ - -reflexChain::reflexChain(Int size, Int is_increasing) -{ - queue = (Real2*) malloc(sizeof(Real2) * size); - assert(queue); - index_queue = 0; - size_queue = size; - isIncreasing = is_increasing; -} - -reflexChain::~reflexChain() -{ - free(queue); -} - -/*put (u,v) at the end of the queue - *pay attention to space - */ -void reflexChain::insert(Real u, Real v) -{ - Int i; - if(index_queue >= size_queue) { - Real2 *temp = (Real2*) malloc(sizeof(Real2) * (2*size_queue+1)); - assert(temp); - - /*copy*/ - for(i=0; ibegin(); - pStream->insert(v); - if(isIncreasing) { - for(i=0; iinsert(queue[i]); - } - else { - for(i=index_queue-1; i>=0; i--) - pStream->insert(queue[i]); - } - pStream->end(PRIMITIVE_STREAM_FAN); -} - -void reflexChain::processNewVertex(Real v[2], primStream* pStream) -{ - Int i,j,k; - Int isReflex; - /*if there are at most one vertex in the queue, then simply insert - */ - if(index_queue <=1){ - insert(v); - return; - } - - /*there are at least two vertices in the queue*/ - j=index_queue-1; - - for(i=j; i>=1; i--) { - if(isIncreasing) { - isReflex = (area(queue[i-1], queue[i], v) <= 0.0); - } - else /*decreasing*/{ - isReflex = (area(v, queue[i], queue[i-1]) <= 0.0); - } - if(isReflex) { - break; - } - } - - /* - *if ibegin(); - pStream->insert(v); - if(isIncreasing) { - for(k=i; k<=j; k++) - pStream->insert(queue[k]); - } - else { - for(k=j; k>=i; k--) - pStream->insert(queue[k]); - } - - pStream->end(PRIMITIVE_STREAM_FAN); - } - - /*delete vertices i+1--j from the queue*/ - index_queue = i+1; - /*finally insert v at the end of the queue*/ - insert(v); - -} - -void reflexChain::print() -{ - Int i; - printf("reflex chain: isIncreasing=%i\n", isIncreasing); - for(i=0; i -#define dprintf printf -#else -static inline void dprintf( char *fmt, ... ) { } -#endif -#endif - -#ifdef GLBUILD -static inline void dprintf( char *fmt, ... ) { } -#endif - -#ifndef NULL -#define NULL 0 -#endif - -#endif /* __glumystdio_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/mystdlib.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/mystdlib.h deleted file mode 100644 index 137707b19..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/mystdlib.h +++ /dev/null @@ -1,62 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * mystdlib.h - * - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/mystdlib.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef __glumystdlib_h_ -#define __glumystdlib_h_ - -#ifdef STANDALONE -typedef unsigned int size_t; -extern "C" void abort( void ); -extern "C" void * malloc( size_t ); -extern "C" void free( void * ); -#endif - -#ifdef LIBRARYBUILD -#include -#endif - -#ifdef GLBUILD -typedef unsigned int size_t; -extern "C" void abort( void ); -extern "C" void * malloc( size_t ); -extern "C" void free( void * ); -#endif - -#endif /* __glumystdlib_h_ */ diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionX.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionX.cc deleted file mode 100644 index 7fbd9cb3c..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionX.cc +++ /dev/null @@ -1,164 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionX.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#include -#include - -#include "partitionX.h" - -#define CONCAVITY_ZERO 1.0e-6 //this number is used to test whether a vertex is concave (refelx) - //or not. The test needs to compute the area of the three adjacent - //vertices to see if the are is positive or negative. - -Int isCuspX(directedLine *v) -{ - //if v->prev <= v && v->next <= v - //|| v->prev >= v && v->next >= v - Real* T = v->head(); - Real* P = v->getPrev()->head(); - Real* N = v->getNext()->head(); - if( - (compV2InX(T,P) != -1 && - compV2InX(T,N) != -1 - ) || - (compV2InX(T,P) != 1 && - compV2InX(T,N) != 1 - ) - ) - return 1; - else - return 0; -} - -Int isReflexX(directedLine* v) -{ - Real* A = v->getPrev()->head(); - Real* B = v->head(); - Real* C = v->tail(); - Real Bx,By, Cx, Cy; - //scale them in case they are too small - Bx = 10*(B[0] - A[0]); - By = 10*(B[1] - A[1]); - Cx = 10*(C[0] - A[0]); - Cy = 10*(C[1] - A[1]); - - if(Bx*Cy - Cx*By < -CONCAVITY_ZERO) return 1; - else return 0; -} - - -/*return - *0: not-cusp - *1: interior cusp - *2: exterior cusp - */ -Int cuspTypeX(directedLine *v) -{ - if(! isCuspX(v)) return 0; - else - { -//printf("isCusp,%f,%f\n", v->head()[0], v->head()[1]); - if(isReflexX(v)) - { -// printf("isReflex\n"); - return 1; - } - else - { -// printf("not isReflex\n"); - return 2; - } - } -} - -Int numInteriorCuspsX(directedLine *polygon) -{ - directedLine *temp; - int ret = 0; - if(cuspTypeX(polygon) == 1) - ret++; - for(temp = polygon->getNext(); temp != polygon; temp = temp->getNext()) - if(cuspTypeX(temp) == 1) - ret++; - return ret; -} - - -void findInteriorCuspsX(directedLine *polygon, Int& ret_n_interior_cusps, - directedLine** ret_interior_cusps) -{ - directedLine *temp; - ret_n_interior_cusps = 0; - if(cuspTypeX(polygon) == 1) - { - ret_interior_cusps[ret_n_interior_cusps++] = polygon; - } - for(temp = polygon->getNext(); temp != polygon; temp = temp->getNext()) - if(cuspTypeX(temp) == 1) - { - ret_interior_cusps[ret_n_interior_cusps++] = temp; - } -} - -directedLine* findDiagonal_singleCuspX(directedLine* cusp) -{ - directedLine* temp; - Int is_minimal = ((compV2InX(cusp->head(), cusp->tail()) == -1)? 1:0); - - if(is_minimal) - for(temp = cusp->getNext(); temp != cusp; temp = temp->getNext()) - { - if(compV2InX(cusp->head(), temp->head()) == 1) - { - return temp; - } - } - else //is maxmal - for(temp = cusp->getNext(); temp != cusp; temp = temp->getNext()) - { - if(compV2InX(cusp->head(), temp->head()) == -1) - { - return temp; - } - } - return NULL; -} - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionX.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionX.h deleted file mode 100644 index bb1b87284..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionX.h +++ /dev/null @@ -1,61 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionX.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _PARTITIONX_H -#define _PARTITIONX_H - -#include "directedLine.h" - -Int isCuspX(directedLine *v); -Int isReflexX(directedLine *v); -Int cuspTypeX(directedLine *v); - -//assuming the array of ret_interior_cusps has been allocated -void findInteriorCuspsX(directedLine* polygon, Int& ret_n_interior_cusps, - directedLine** ret_interior_cusps); - -Int numInteriorCuspsX(directedLine* polygon); - -/*a single polygon with a single cusp - *return the diagonal vertex corresponding to this cusp - */ -directedLine* findDiagonal_singleCuspX(directedLine* cusp); - -#endif - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionY.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionY.cc deleted file mode 100644 index 1fec92096..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionY.cc +++ /dev/null @@ -1,838 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionY.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#include -#include -#include - -#include "zlassert.h" -#include "partitionY.h" -#include "searchTree.h" -#include "quicksort.h" -#include "polyUtil.h" - - -#define max(a,b) ((a>b)? a:b) -#define min(a,b) ((a>b)? b:a) - - -/*retrurn - *-1: if A < B (YaB - */ -static Int compVertInY(Real A[2], Real B[2]) -{ - if( (A[1] < B[1]) || (A[1]==B[1] && A[0]head(); - if( compVertInY(e->head(), vert) != 1 - && compVertInY(e->tail(), vert) != 1 - ) - return 1; - else - return 0; -} - -/*v is a vertex: the head of en edge, - *e is an edge, - *return 1 if e is below v: assume v1 and v2 are the two endpoints of e: - * v1>= v, v2>=v. - */ -Int isAbove(directedLine *v, directedLine *e) -{ - Real* vert = v->head(); - if( compVertInY(e->head(), vert) != -1 - && compVertInY(e->tail(), vert) != -1 - ) - return 1; - else - return 0; -} - -Int isCusp(directedLine *v) -{ - Real *A=v->getPrev()->head(); - Real *B=v->head(); - Real *C=v->tail(); - if(A[1] < B[1] && B[1] < C[1]) - return 0; - else if(A[1] > B[1] && B[1] > C[1]) - return 0; - else if(A[1] < B[1] && C[1] < B[1]) - return 1; - else if(A[1] > B[1] && C[1] > B[1]) - return 1; - - if(isAbove(v, v) && isAbove(v, v->getPrev()) || - isBelow(v, v) && isBelow(v, v->getPrev())) - return 1; - else - return 0; -} - -/*crossproduct is strictly less than 0*/ -Int isReflex(directedLine *v) -{ - Real* A = v->getPrev()->head(); - Real* B = v->head(); - Real* C = v->tail(); - Real Bx,By, Cx, Cy; - Bx = B[0] - A[0]; - By = B[1] - A[1]; - Cx = C[0] - A[0]; - Cy = C[1] - A[1]; - - if(Bx*Cy - Cx*By < 0) return 1; - else return 0; -} - - /*return - *0: not-cusp - *1: interior cusp - *2: exterior cusp - */ -Int cuspType(directedLine *v) -{ - if(! isCusp(v)) return 0; - else if(isReflex(v)) return 1; - else - return 2; -} - -sweepRange* sweepRangeMake(directedLine* left, Int leftType, - directedLine* right, Int rightType) -{ - sweepRange* ret = (sweepRange*)malloc(sizeof(sweepRange)); - assert(ret); - ret->left = left; - ret->leftType = leftType; - ret->right = right; - ret->rightType = rightType; - return ret; -} - -void sweepRangeDelete(sweepRange* range) -{ - free(range); -} - -Int sweepRangeEqual(sweepRange* src1, sweepRange* src2) -{ - Int leftEqual; - Int rightEqual; - - - /*The case when both are vertices should not happen*/ - assert(! (src1->leftType == 0 && src2->leftType == 0)); - if(src1->leftType == 0 && src2->leftType == 1){ - if(src1->left == src2->left || - src1->left->getPrev() == src2->left - ) - leftEqual = 1; - else - leftEqual = 0; - } - else if(src1->leftType == 1 && src2->leftType == 1){ - if(src1->left == src2->left) - leftEqual = 1; - else - leftEqual = 0; - } - else /*src1->leftType == 1 && src2->leftType == 0*/{ - if(src1->left == src2->left || - src1->left == src2->left->getPrev() - ) - leftEqual = 1; - else - leftEqual = 0; - } - - /*the same thing for right*/ - /*The case when both are vertices should not happen*/ - assert(! (src1->rightType == 0 && src2->rightType == 0)); - if(src1->rightType == 0 && src2->rightType == 1){ - if(src1->right == src2->right || - src1->right->getPrev() == src2->right - ) - rightEqual = 1; - else - rightEqual = 0; - } - else if(src1->rightType == 1 && src2->rightType == 1){ - if(src1->right == src2->right) - rightEqual = 1; - else - rightEqual = 0; - } - else /*src1->rightType == 1 && src2->rightType == 0*/{ - if(src1->right == src2->right || - src1->right == src2->right->getPrev() - ) - rightEqual = 1; - else - rightEqual = 0; - } - - return (leftEqual == 1 || rightEqual == 1); -} - -/*given (x_1, y_1) and (x_2, y_2), and y - *return x such that (x,y) is on the line - */ -inline/*static*/ Real intersectHoriz(Real x1, Real y1, Real x2, Real y2, Real y) -{ - return ((y2==y1)? (x1+x2)*0.5 : x1 + ((y-y1)/(y2-y1)) * (x2-x1)); -/* - if(y2 == y1) return (x1+x2)*0.5; - else return x1 + ((y-y1)/(y2-y1)) * (x2-x1); -*/ -} - -/*compare two edges of a polygon. - *edge A < edge B if there is a horizontal line so that the intersection - *with A is to the left of the intersection with B. - *This function is used in sweepY for the dynamic search tree insertion to - *order the edges. - * Implementation: (x_1,y_1) and (x_2, y_2) - */ -static Int compEdges(directedLine *e1, directedLine *e2) -{ - Real* head1 = e1->head(); - Real* tail1 = e1->tail(); - Real* head2 = e2->head(); - Real* tail2 = e2->tail(); -/* - Real h10 = head1[0]; - Real h11 = head1[1]; - Real t10 = tail1[0]; - Real t11 = tail1[1]; - Real h20 = head2[0]; - Real h21 = head2[1]; - Real t20 = tail2[0]; - Real t21 = tail2[1]; -*/ - Real e1_Ymax, e1_Ymin, e2_Ymax, e2_Ymin; -/* - if(h11>t11) { - e1_Ymax= h11; - e1_Ymin= t11; - } - else{ - e1_Ymax = t11; - e1_Ymin = h11; - } - - if(h21>t21) { - e2_Ymax= h21; - e2_Ymin= t21; - } - else{ - e2_Ymax = t21; - e2_Ymin = h21; - } -*/ - - if(head1[1]>tail1[1]) { - e1_Ymax= head1[1]; - e1_Ymin= tail1[1]; - } - else{ - e1_Ymax = tail1[1]; - e1_Ymin = head1[1]; - } - - if(head2[1]>tail2[1]) { - e2_Ymax= head2[1]; - e2_Ymin= tail2[1]; - } - else{ - e2_Ymax = tail2[1]; - e2_Ymin = head2[1]; - } - - - /*Real e1_Ymax = max(head1[1], tail1[1]);*/ /*max(e1->head()[1], e1->tail()[1]);*/ - /*Real e1_Ymin = min(head1[1], tail1[1]);*/ /*min(e1->head()[1], e1->tail()[1]);*/ - /*Real e2_Ymax = max(head2[1], tail2[1]);*/ /*max(e2->head()[1], e2->tail()[1]);*/ - /*Real e2_Ymin = min(head2[1], tail2[1]);*/ /*min(e2->head()[1], e2->tail()[1]);*/ - - Real Ymax = min(e1_Ymax, e2_Ymax); - Real Ymin = max(e1_Ymin, e2_Ymin); - - Real y = 0.5*(Ymax + Ymin); - -/* Real x1 = intersectHoriz(e1->head()[0], e1->head()[1], e1->tail()[0], e1->tail()[1], y); - Real x2 = intersectHoriz(e2->head()[0], e2->head()[1], e2->tail()[0], e2->tail()[1], y); -*/ -/* - Real x1 = intersectHoriz(h10, h11, t10, t11, y); - Real x2 = intersectHoriz(h20, h21, t20, t21, y); -*/ - Real x1 = intersectHoriz(head1[0], head1[1], tail1[0], tail1[1], y); - Real x2 = intersectHoriz(head2[0], head2[1], tail2[0], tail2[1], y); - - if(x1<= x2) return -1; - else return 1; -} - -/*used by sort precedures - */ -static Int compInY(directedLine* v1, directedLine* v2) -{ - return v1->compInY(v2); -} - -void findDiagonals(Int total_num_edges, directedLine** sortedVertices, sweepRange** ranges, Int& num_diagonals, directedLine** diagonal_vertices) -{ - Int i,j,k; - - k=0; - - for(i=0; igetPrev(); -/* -printf("find i=%i\n", i); -printf("the vertex is\n"); -vert->printSingle(); -*/ - if(isBelow(vert, thisEdge) && isBelow(vert, prevEdge) && compEdges(prevEdge, thisEdge)<0) - { - /*this is an upward interior cusp*/ - diagonal_vertices[k++] = vert; - - for(j=i+1; j0) - { - /*this is an downward interior cusp*/ - diagonal_vertices[k++] = vert; - for(j=i-1; j>=0; j--) - if(sweepRangeEqual(ranges[i], ranges[j])) - { - diagonal_vertices[k++] = sortedVertices[j]; - break; - } -/* printf("j=%i\n", j);*/ - assert(j>=0); - - - - } - } - num_diagonals = k/2; -} - -/*get rid of repeated diagonlas so that each diagonal appears only once in the array - */ -Int deleteRepeatDiagonals(Int num_diagonals, directedLine** diagonal_vertices, directedLine** new_vertices) -{ - Int i,k; - Int j,l; - Int index; - index=0; - for(i=0,k=0; itoArrayAllPolygons(total_num_edges); - quicksort( (void**)array, 0, total_num_edges-1, (Int (*)(void*, void*)) compInY); - sweepRange** ranges = (sweepRange**) malloc(sizeof(sweepRange*) * total_num_edges); - assert(ranges); - - sweepY(total_num_edges, array, ranges); - - directedLine** diagonal_vertices = (directedLine**) malloc(sizeof(directedLine*) * total_num_edges); - assert(diagonal_vertices); - findDiagonals(total_num_edges, array, ranges, num_diagonals, diagonal_vertices); - - num_diagonals=deleteRepeatDiagonals(num_diagonals, diagonal_vertices, diagonal_vertices); - return diagonal_vertices; - -} - - -/*partition into Y-monotone polygons*/ -directedLine* partitionY(directedLine *polygons, sampledLine **retSampledLines) -{ - Int total_num_edges = 0; - directedLine** array = polygons->toArrayAllPolygons(total_num_edges); - - quicksort( (void**)array, 0, total_num_edges-1, (Int (*)(void*, void*)) compInY); - - sweepRange** ranges = (sweepRange**) malloc(sizeof(sweepRange*) * (total_num_edges)); - assert(ranges); - - - - sweepY(total_num_edges, array, ranges); - - - - /*the diagonal vertices are stored as: - *v0-v1: 1st diagonal - *v2-v3: 2nd diagonal - *v5-v5: 3rd diagonal - *... - */ - - - Int num_diagonals; - /*number diagonals is < total_num_edges*total_num_edges*/ - directedLine** diagonal_vertices = (directedLine**) malloc(sizeof(directedLine*) * total_num_edges*2/*total_num_edges*/); - assert(diagonal_vertices); - - - - findDiagonals(total_num_edges, array, ranges, num_diagonals, diagonal_vertices); - - - - directedLine* ret_polygons = polygons; - sampledLine* newSampledLines = NULL; - Int i,k; - -num_diagonals=deleteRepeatDiagonals(num_diagonals, diagonal_vertices, diagonal_vertices); - - - - Int *removedDiagonals=(Int*)malloc(sizeof(Int) * num_diagonals); - for(i=0; ifindRoot(); - directedLine *root2 = v2->findRoot(); - assert(root1); - assert(root2); -*/ - -directedLine* root1 = v1->rootLinkFindRoot(); -directedLine* root2 = v2->rootLinkFindRoot(); - - if(root1 != root2) - { - - removedDiagonals[i] = 1; - sampledLine* generatedLine; - - - - v1->connectDiagonal(v1,v2, &ret_p1, &ret_p2, &generatedLine, ret_polygons); - - - - newSampledLines = generatedLine->insert(newSampledLines); -/* - ret_polygons = ret_polygons->cutoffPolygon(root1); - - ret_polygons = ret_polygons->cutoffPolygon(root2); - ret_polygons = ret_p1->insertPolygon(ret_polygons); -root1->rootLinkSet(ret_p1); -root2->rootLinkSet(ret_p1); -ret_p1->rootLinkSet(NULL); -ret_p2->rootLinkSet(ret_p1); -*/ - ret_polygons = ret_polygons->cutoffPolygon(root2); - - - -root2->rootLinkSet(root1); -ret_p1->rootLinkSet(root1); -ret_p2->rootLinkSet(root1); - - /*now that we have connected the diagonal v1 and v2, - *we have to check those unprocessed diagonals which - *have v1 or v2 as an end point. Notice that the head of v1 - *has the same coodinates as the head of v2->prev, and the head of - *v2 has the same coordinate as the head of v1->prev. - *Suppose these is a diagonal (v1, x). If (v1,x) is still a valid - *diagonal, then x should be on the left hand side of the directed line: *v1->prev->head -- v1->head -- v1->tail. Otherwise, (v1,x) should be - *replaced by (v2->prev, x), that is, x is on the left of - * v2->prev->prev->head, v2->prev->head, v2->prev->tail. - */ - Int ii, kk; - for(ii=0, kk=0; iiprev->head:v1->head:v1->tail*/ - if(! pointLeft2Lines(v1->getPrev()->head(), - v1->head(), v1->tail(), d2->head())) - { -/* - assert(pointLeft2Lines(v2->getPrev()->getPrev()->head(), - v2->getPrev()->head(), - v2->getPrev()->tail(), d2->head())); -*/ - diagonal_vertices[kk] = v2->getPrev(); - } - } - if(d1 == v2) { - /*check if d2 is to left of v2->prev->head:v2->head:v2->tail*/ - if(! pointLeft2Lines(v2->getPrev()->head(), - v2->head(), v2->tail(), d2->head())) - { -/* - assert(pointLeft2Lines(v1->getPrev()->getPrev()->head(), - v1->getPrev()->head(), - v1->getPrev()->tail(), d2->head())); -*/ - diagonal_vertices[kk] = v1->getPrev(); - } - } - /*check d2 and replace diagonal_vertices[k+1] if necessary*/ - if(d2 == v1) { - /*check if d1 is to left of v1->prev->head:v1->head:v1->tail*/ - if(! pointLeft2Lines(v1->getPrev()->head(), - v1->head(), v1->tail(), d1->head())) - { -/* assert(pointLeft2Lines(v2->getPrev()->getPrev()->head(), - v2->getPrev()->head(), - v2->getPrev()->tail(), d1->head())); -*/ - diagonal_vertices[kk+1] = v2->getPrev(); - } - } - if(d2 == v2) { - /*check if d1 is to left of v2->prev->head:v2->head:v2->tail*/ - if(! pointLeft2Lines(v2->getPrev()->head(), - v2->head(), v2->tail(), d1->head())) - { -/* assert(pointLeft2Lines(v1->getPrev()->getPrev()->head(), - v1->getPrev()->head(), - v1->getPrev()->tail(), d1->head())); -*/ - diagonal_vertices[kk+1] = v1->getPrev(); - } - } - } -}/*end if (root1 not equal to root 2)*/ -} - - /*second pass, now all diagoals should belong to the same polygon*/ - - - - for(i=0,k=0; ifindRoot(); -/* - directedLine *root2 = v2->findRoot(); - - - - assert(root1); - assert(root2); - assert(root1 == root2); - */ - sampledLine* generatedLine; - - - - v1->connectDiagonal(v1,v2, &ret_p1, &ret_p2, &generatedLine, ret_polygons); - newSampledLines = generatedLine->insert(newSampledLines); - - ret_polygons = ret_polygons->cutoffPolygon(root1); - - ret_polygons = ret_p1->insertPolygon(ret_polygons); - - ret_polygons = ret_p2->insertPolygon(ret_polygons); - - - - for(Int j=i+1; jsamePolygon(temp1, temp2)) - { - /*if temp1 and temp2 are in different polygons, - *then one of them must be v1 or v2. - */ - - - - assert(temp1==v1 || temp1 == v2 || temp2==v1 || temp2 ==v2); - if(temp1==v1) - { - diagonal_vertices[2*j] = v2->getPrev(); - } - if(temp2==v1) - { - diagonal_vertices[2*j+1] = v2->getPrev(); - } - if(temp1==v2) - { - diagonal_vertices[2*j] = v1->getPrev(); - } - if(temp2==v2) - { - diagonal_vertices[2*j+1] = v1->getPrev(); - } - } - } - } - - } - - /*clean up spaces*/ - free(array); - free(ranges); - free(diagonal_vertices); - free(removedDiagonals); - - *retSampledLines = newSampledLines; - return ret_polygons; -} - -/*given a set of simple polygons where the interior - *is decided by left-hand principle, - *return a range (sight) for each vertex. This is called - *Trapezoidalization. - */ -void sweepY(Int nVertices, directedLine** sortedVertices, sweepRange** ret_ranges) -{ - Int i; - /*for each vertex in the sorted list, update the binary search tree. - *and store the range information for each vertex. - */ - treeNode* searchTree = NULL; - for(i=0; igetPrev(); - - if(isBelow(vert, thisEdge) && isAbove(vert, prevEdge)) - { - - /*case 1: this < v < prev - *the polygon is going down at v, the interior is to - *the right hand side. - * find the edge to the right of thisEdge for right range. - * delete thisEdge - * insert prevEdge - */ - treeNode* thisNode = TreeNodeFind(searchTree, thisEdge, ( Int (*) (void *, void *))compEdges); - assert(thisNode); - - treeNode* succ = TreeNodeSuccessor(thisNode); - assert(succ); - searchTree = TreeNodeDeleteSingleNode(searchTree, thisNode); - searchTree = TreeNodeInsert(searchTree, TreeNodeMake(prevEdge), ( Int (*) (void *, void *))compEdges); - - - ret_ranges[i] = sweepRangeMake(vert, 0, (directedLine*) (succ->key), 1); - - } - else if(isAbove(vert, thisEdge) && isBelow(vert, prevEdge)) - { - - /*case 2: this > v > prev - *the polygon is going up at v, the interior is to - *the left hand side. - * find the edge to the left of thisEdge for left range. - * delete prevEdge - * insert thisEdge - */ - treeNode* prevNode = TreeNodeFind(searchTree, prevEdge, ( Int (*) (void *, void *))compEdges); - assert(prevNode); - treeNode* pred = TreeNodePredecessor(prevNode); - searchTree = TreeNodeDeleteSingleNode(searchTree, prevNode); - searchTree = TreeNodeInsert(searchTree, TreeNodeMake(thisEdge), ( Int (*) (void *, void *))compEdges); - ret_ranges[i] = sweepRangeMake((directedLine*)(pred->key), 1, vert, 0); - } - else if(isAbove(vert, thisEdge) && isAbove(vert, prevEdge)) - { - - /*case 3: insert both edges*/ - treeNode* thisNode = TreeNodeMake(thisEdge); - treeNode* prevNode = TreeNodeMake(prevEdge); - searchTree = TreeNodeInsert(searchTree, thisNode, ( Int (*) (void *, void *))compEdges); - searchTree = TreeNodeInsert(searchTree, prevNode, ( Int (*) (void *, void *))compEdges); - if(compEdges(thisEdge, prevEdge)<0) /*interior cusp*/ - { - - treeNode* leftEdge = TreeNodePredecessor(thisNode); - treeNode* rightEdge = TreeNodeSuccessor(prevNode); - ret_ranges[i] = sweepRangeMake( (directedLine*) leftEdge->key, 1, - (directedLine*) rightEdge->key, 1 - ); - } - else /*exterior cusp*/ - { - - ret_ranges[i] = sweepRangeMake( prevEdge, 1, thisEdge, 1); - } - } - else if(isBelow(vert, thisEdge) && isBelow(vert, prevEdge)) - { - - /*case 4: delete both edges*/ - treeNode* thisNode = TreeNodeFind(searchTree, thisEdge, ( Int (*) (void *, void *))compEdges); - treeNode* prevNode = TreeNodeFind(searchTree, prevEdge, ( Int (*) (void *, void *))compEdges); - if(compEdges(thisEdge, prevEdge)>0) /*interior cusp*/ - { - treeNode* leftEdge = TreeNodePredecessor(prevNode); - treeNode* rightEdge = TreeNodeSuccessor(thisNode); - ret_ranges[i] = sweepRangeMake( (directedLine*) leftEdge->key, 1, - (directedLine*) rightEdge->key, 1 - ); - } - else /*exterior cusp*/ - { - ret_ranges[i] = sweepRangeMake( thisEdge, 1, prevEdge, 1); - } - searchTree = TreeNodeDeleteSingleNode(searchTree, thisNode); - searchTree = TreeNodeDeleteSingleNode(searchTree, prevNode); - } - else - { - fprintf(stderr,"error in partitionY.C, invalid case\n"); - printf("vert is\n"); - vert->printSingle(); - printf("thisEdge is\n"); - thisEdge->printSingle(); - printf("prevEdge is\n"); - prevEdge->printSingle(); - - exit(1); - } - } - - /*finaly clean up space: delete the search tree*/ - TreeNodeDeleteWholeTree(searchTree); -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionY.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionY.h deleted file mode 100644 index 96d6a4c96..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionY.h +++ /dev/null @@ -1,104 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* - *partitionY.h: - *partition a polygon into a Y-monotone polygon: - * A polygon is Y-monotone if the boundary can be split into two polygon chains - *A and B such that each chain is Y-monotonic that is the intersection of any - *horizontal line intersects each chain has at most one connected componenets - * (empty, single point or a single line). - * - * A vertex is a cusp if both its ajacent vertices are either at or above v, - *or both at or below v. In addition, at least one of the ajacent verteces is - *strictly below or above v. - * A vertex is a relex vertex if the internals angle is strictly greater than - *180. In other words, if the the signed area is negative: - *(x1, y1), (x2, y2), (x3, y3) are the three vertices along a polygon, the - *order is such that left hand side is inside the polygon. Then (x2,y2) is - *reflex if: - * (x2-x1, y2-y1) cross (x3-x1, y3-y1) <0. - *A vertex is an interior cusp if it is a cusp and a reflex. - *A vertex is an exterior cusp if it is a cusp but not a reflex. - * - * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/partitionY.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ - */ - -#ifndef _PARTITIONY_H -#define _PARTITIONY_H - -#include "directedLine.h" - -/*whether an edge is below a vertex*/ -Int isBelow(directedLine *v, directedLine *e); - -/*whether an edge is above a vertex*/ -Int isAbove(directedLine *v, directedLine *e); - -/*not-cusp, - *inerior cusp - *exterior cusp - */ -Int cuspType(directedLine *v); - -/*used in trapezoidalization*/ -typedef struct sweepRange{ - directedLine *left; - Int leftType; /*either a vertex (leftType=0) or an edge (leftType =1) */ - directedLine *right; - Int rightType; /*either a vertex (rightType=0) or an edge (rightType =1) */ -} sweepRange; - -sweepRange* sweepRangeMake(directedLine* left, Int leftType, - directedLine* right, Int rightType); - -void sweepRangeDelete(sweepRange* range); -Int sweepRangeEqual(sweepRange* sr1, sweepRange* sr2); - -/*given a set of simple polygons where the interior - *is decided by left-hand principle, - *return a range (sight) for each vertex. This is called - *Trapezoidalization. - */ -void sweepY(Int nVertices, directedLine **sortedVerteces, sweepRange** ret_ranges); - - -directedLine* partitionY(directedLine *polygons, sampledLine **retSampledLines); - -void findDiagonals(Int total_num_edges, directedLine** sortedVertices, sweepRange** ranges, Int& num_diagonals, directedLine** diagonal_vertices); - -directedLine** DBGfindDiagonals(directedLine *polygons, Int& num_diagonals); - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyDBG.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyDBG.cc deleted file mode 100644 index e7dc24738..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyDBG.cc +++ /dev/null @@ -1,729 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/04/23 18:42:56 $ $Revision: 1.2 $ -*/ -/* $XFree86$ */ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyDBG.cc,v 1.2 2004/04/23 18:42:56 eich Exp $ -*/ - -#include -#include -#include -#include "zlassert.h" -#include "polyDBG.h" - - -static Real area(Real A[2], Real B[2], Real C[2]) -{ - Real Bx, By, Cx, Cy; - Bx = B[0] - A[0]; - By = B[1] - A[1]; - Cx = C[0] - A[0]; - Cy = C[1] - A[1]; - return Bx*Cy - Cx*By; -} - -Int DBG_isConvex(directedLine *poly) -{ - directedLine* temp; - if(area(poly->head(), poly->tail(), poly->getNext()->tail()) < 0.00000) - return 0; - for(temp = poly->getNext(); temp != poly; temp = temp->getNext()) - { - if(area(temp->head(), temp->tail(), temp->getNext()->tail()) < 0.00000) - return 0; - } - return 1; -} - -Int DBG_is_U_monotone(directedLine* poly) -{ - Int n_changes = 0; - Int prev_sign; - Int cur_sign; - directedLine* temp; - cur_sign = compV2InX(poly->tail(), poly->head()); - - n_changes = (compV2InX(poly->getPrev()->tail(), poly->getPrev()->head()) - != cur_sign); - - for(temp = poly->getNext(); temp != poly; temp = temp->getNext()) - { - prev_sign = cur_sign; - cur_sign = compV2InX(temp->tail(), temp->head()); - - if(cur_sign != prev_sign) - n_changes++; - } - - if(n_changes ==2) return 1; - else return 0; -} - -/*if u-monotone, and there is a long horizontal edge*/ -Int DBG_is_U_direction(directedLine* poly) -{ -/* - if(! DBG_is_U_monotone(poly)) - return 0; -*/ - Int V_count = 0; - Int U_count = 0; - directedLine* temp; - if( fabs(poly->head()[0] - poly->tail()[0]) <= fabs(poly->head()[1]-poly->tail()[1])) - V_count += poly->get_npoints(); - else - U_count += poly->get_npoints(); - /* - else if(poly->head()[1] == poly->tail()[1]) - U_count += poly->get_npoints(); - */ - for(temp = poly->getNext(); temp != poly; temp = temp->getNext()) - { - if( fabs(temp->head()[0] - temp->tail()[0]) <= fabs(temp->head()[1]-temp->tail()[1])) - V_count += temp->get_npoints(); - else - U_count += temp->get_npoints(); - /* - if(temp->head()[0] == temp->tail()[0]) - V_count += temp->get_npoints(); - else if(temp->head()[1] == temp->tail()[1]) - U_count += temp->get_npoints(); - */ - } - - if(U_count > V_count) return 1; - else return 0; -} - -/*given two line segments, determine whether - *they intersect each other or not. - *return 1 if they do, - *return 0 otherwise - */ -Int DBG_edgesIntersect(directedLine* l1, directedLine* l2) -{ - if(l1->getNext() == l2) - { - if(area(l1->head(), l1->tail(), l2->tail()) == 0) //colinear - { - if( (l1->tail()[0] - l1->head()[0])*(l2->tail()[0]-l2->head()[0]) + - (l1->tail()[1] - l1->head()[1])*(l2->tail()[1]-l2->head()[1]) >=0) - return 0; //not intersect - else - return 1; - } - //else we use the normal code - } - else if(l1->getPrev() == l2) - { - if(area(l2->head(), l2->tail(), l1->tail()) == 0) //colinear - { - if( (l2->tail()[0] - l2->head()[0])*(l1->tail()[0]-l1->head()[0]) + - (l2->tail()[1] - l2->head()[1])*(l1->tail()[1]-l1->head()[1]) >=0) - return 0; //not intersect - else - return 1; - } - //else we use the normal code - } - else //the two edges are not connected - { - if((l1->head()[0] == l2->head()[0] && - l1->head()[1] == l2->head()[1]) || - (l1->tail()[0] == l2->tail()[0] && - l1->tail()[1] == l2->tail()[1])) - return 1; - } - - if( - ( - area(l1->head(), l1->tail(), l2->head()) - * - area(l1->head(), l1->tail(), l2->tail()) - < 0 - ) - && - ( - area(l2->head(), l2->tail(), l1->head()) - *area(l2->head(), l2->tail(), l1->tail()) - < 0 - ) - ) - return 1; - else - return 0; -} - -/*whether AB and CD intersect - *return 1 if they do - *retur 0 otheriwse - */ -Int DBG_edgesIntersectGen(Real A[2], Real B[2], Real C[2], Real D[2]) -{ - if( - ( - area(A, B, C) * area(A,B,D) <0 - ) - && - ( - area(C,D,A) * area(C,D,B) < 0 - ) - ) - return 1; - else - return 0; -} - -/*determien whether (A,B) interesect chain[start] to [end] - */ -Int DBG_intersectChain(vertexArray* chain, Int start, Int end, Real A[2], Real B[2]) -{ - Int i; - for(i=start; i<=end-2; i++) - if(DBG_edgesIntersectGen(chain->getVertex(i), chain->getVertex(i+1), A, B)) - return 1; - - return 0; -} - -/*determine whether a polygon intersect itself or not - *return 1 is it does, - * 0 otherwise - */ -Int DBG_polygonSelfIntersect(directedLine* poly) -{ - directedLine* temp1; - directedLine* temp2; - temp1=poly; - for(temp2=temp1->getNext(); temp2 != temp1; temp2=temp2->getNext()) - { - if(DBG_edgesIntersect(temp1, temp2)) - { - return 1; - } - } - - for(temp1=poly->getNext(); temp1 != poly; temp1 = temp1->getNext()) - for(temp2=temp1->getNext(); temp2 != temp1; temp2=temp2->getNext()) - { - if(DBG_edgesIntersect(temp1, temp2)) - { - return 1; - } - } - return 0; -} - -/*check whether a line segment intersects a polygon - */ -Int DBG_edgeIntersectPoly(directedLine* edge, directedLine* poly) -{ - directedLine* temp; - if(DBG_edgesIntersect(edge, poly)) - return 1; - for(temp=poly->getNext(); temp != poly; temp=temp->getNext()) - if(DBG_edgesIntersect(edge, temp)) - return 1; - return 0; -} - -/*check whether two polygons intersect - */ -Int DBG_polygonsIntersect(directedLine* p1, directedLine* p2) -{ - directedLine* temp; - if(DBG_edgeIntersectPoly(p1, p2)) - return 1; - for(temp=p1->getNext(); temp!= p1; temp = temp->getNext()) - if(DBG_edgeIntersectPoly(temp, p2)) - return 1; - return 0; -} - -/*check whether there are polygons intersecting each other in - *a list of polygons - */ -Int DBG_polygonListIntersect(directedLine* pList) -{ - directedLine *temp; - for(temp=pList; temp != NULL; temp = temp->getNextPolygon()) - if(DBG_polygonSelfIntersect(temp)) - return 1; - directedLine* temp2; - for(temp=pList; temp!=NULL; temp=temp->getNextPolygon()) - { - for(temp2=temp->getNextPolygon(); temp2 != NULL; temp2=temp2->getNextPolygon()) - if(DBG_polygonsIntersect(temp, temp2)) - return 1; - } - - return 0; -} - - -Int DBG_isCounterclockwise(directedLine* poly) -{ - return (poly->polyArea() > 0); -} - -/*ray: v0 with direction (dx,dy). - *edge: v1-v2. - * the extra point v10[2] is given for the information at - *v1. Basically this edge is connectd to edge - * v10-v1. If v1 is on the ray, - * then we need v10 to determine whether this ray intersects - * the edge or not (that is, return 1 or return 0). - * If v1 is on the ray, then if v2 and v10 are on the same side of the ray, - * we return 0, otherwise return 1. - *For v2, if v2 is on the ray, we always return 0. - *Notice that v1 and v2 are not symmetric. So the edge is directed!!! - * The purpose for this convention is such that: a point is inside a polygon - * if and only if it intersets with odd number of edges. - */ -Int DBG_rayIntersectEdge(Real v0[2], Real dx, Real dy, Real v10[2], Real v1[2], Real v2[2]) -{ -/* -if( (v1[1] >= v0[1] && v2[1]<= v0[1] ) - ||(v2[1] >= v0[1] && v1[1]<= v0[1] ) - ) - printf("rayIntersectEdge, *********\n"); -*/ - - Real denom = (v2[0]-v1[0])*(-dy) - (v2[1]-v1[1]) * (-dx); - Real nomRay = (v2[0]-v1[0]) * (v0[1] - v1[1]) - (v2[1]-v1[1])*(v0[0]-v1[0]); - Real nomEdge = (v0[0]-v1[0]) * (-dy) - (v0[1]-v1[1])*(-dx); - - - /*if the ray is parallel to the edge, return 0: not intersect*/ - if(denom == 0.0) - return 0; - - /*if v0 is on the edge, return 0: not intersect*/ - if(nomRay == 0.0) - return 0; - - /*if v1 is on the positive ray, and the neighbor of v1 crosses the ray - *return 1: intersect - */ - if(nomEdge == 0) - { /*v1 is on the positive or negative ray*/ - -/* - printf("v1 is on the ray\n"); -*/ - - if(dx*(v1[0]-v0[0])>=0 && dy*(v1[1]-v0[1])>=0) /*v1 on positive ray*/ - { - if(area(v0, v1, v10) * area(v0, v1, v2) >0) - return 0; - else - return 1; - } - else /*v1 on negative ray*/ - return 0; - } - - /*if v2 is on the ray, always return 0: not intersect*/ - if(nomEdge == denom) { -/* printf("v2 is on the ray\n");*/ - return 0; - } - - /*finally */ - if(denom*nomRay>0 && denom*nomEdge>0 && nomEdge/denom <=1.0) - return 1; - return 0; -} - - -/*return the number of intersections*/ -Int DBG_rayIntersectPoly(Real v0[2], Real dx, Real dy, directedLine* poly) -{ - directedLine* temp; - Int count=0; - if(DBG_rayIntersectEdge(v0, dx, dy, poly->getPrev()->head(), poly->head(), poly->tail())) - count++; - - for(temp=poly->getNext(); temp != poly; temp = temp->getNext()) - if(DBG_rayIntersectEdge(v0, dx, dy, temp->getPrev()->head(), temp->head(), temp->tail())) - count++; -/*printf("ray intersect poly: count=%i\n", count);*/ - return count; -} - -Int DBG_pointInsidePoly(Real v[2], directedLine* poly) -{ -/* -printf("enter pointInsidePoly , v=(%f,%f)\n", v[0], v[1]); -printf("the polygon is\n"); -poly->printList(); -*/ - /*for debug purpose*/ - assert( (DBG_rayIntersectPoly(v,1,0,poly) % 2 ) - == (DBG_rayIntersectPoly(v,1,0.1234, poly) % 2 ) - ); - if(DBG_rayIntersectPoly(v, 1, 0, poly) % 2 == 1) - return 1; - else - return 0; -} - -/*return the number of polygons which contain thie polygon - * as a subset - */ -Int DBG_enclosingPolygons(directedLine* poly, directedLine* list) -{ - directedLine* temp; - Int count=0; -/* -printf("%i\n", DBG_pointInsidePoly(poly->head(), - list->getNextPolygon() - ->getNextPolygon() - ->getNextPolygon() - ->getNextPolygon() -)); -*/ - - for(temp = list; temp != NULL; temp = temp->getNextPolygon()) - { - if(poly != temp) - if(DBG_pointInsidePoly(poly->head(), temp)) - count++; -/* printf("count=%i\n", count);*/ - } - return count; -} - -void DBG_reverse(directedLine* poly) -{ - if(poly->getDirection() == INCREASING) - poly->putDirection(DECREASING); - else - poly->putDirection(INCREASING); - - directedLine* oldNext = poly->getNext(); - poly->putNext(poly->getPrev()); - poly->putPrev(oldNext); - - directedLine* temp; - for(temp=oldNext; temp!=poly; temp = oldNext) - { - if(temp->getDirection() == INCREASING) - temp->putDirection(DECREASING); - else - temp->putDirection(INCREASING); - - oldNext = temp->getNext(); - temp->putNext(temp->getPrev()); - temp->putPrev(oldNext); - } - printf("reverse done\n"); -} - -Int DBG_checkConnectivity(directedLine *polygon) -{ - if(polygon == NULL) return 1; - directedLine* temp; - if(polygon->head()[0] != polygon->getPrev()->tail()[0] || - polygon->head()[1] != polygon->getPrev()->tail()[1]) - return 0; - for(temp=polygon->getNext(); temp != polygon; temp=temp->getNext()) - { - if(temp->head()[0] != temp->getPrev()->tail()[0] || - temp->head()[1] != temp->getPrev()->tail()[1]) - return 0; - } - return 1; -} - -/*print out error message. - *If it cannot modify the polygon list to make it satify the - *requirements, return 1. - *otherwise modify the polygon list, and return 0 - */ -Int DBG_check(directedLine *polyList) -{ - directedLine* temp; - if(polyList == NULL) return 0; - - /*if there are intersections, print out error message - */ - if(DBG_polygonListIntersect(polyList)) - { - fprintf(stderr, "DBG_check: there are self intersections, don't know to modify the polygons\n"); - return 1; - } - - /*check the connectivity of each polygon*/ - for(temp = polyList; temp!= NULL; temp = temp ->getNextPolygon()) - { - if(! DBG_checkConnectivity(temp)) - { - fprintf(stderr, "DBG_check, polygon not connected\n"); - return 1; - } - } - - /*check the orientation of each polygon*/ - for(temp = polyList; temp!= NULL; temp = temp ->getNextPolygon()) - { - - - Int correctDir; - - if( DBG_enclosingPolygons(temp, polyList) % 2 == 0) - correctDir = 1; /*counterclockwise*/ - else - correctDir = 0; /*clockwise*/ - - Int actualDir = DBG_isCounterclockwise(temp); - - if(correctDir != actualDir) - { - fprintf(stderr, "DBG_check: polygon with incorrect orientations. reversed\n"); - - DBG_reverse(temp); - } - - } - return 0; -} - -/**************handle self intersections*****************/ -//determine whether e interects [begin, end] or not -static directedLine* DBG_edgeIntersectChainD(directedLine *e, - directedLine *begin, directedLine *end) -{ - directedLine *temp; - for(temp=begin; temp != end; temp = temp->getNext()) - { - if(DBG_edgesIntersect(e, temp)) - return temp; - } - if(DBG_edgesIntersect(e, end)) - return end; - return NULL; -} - -//given a polygon, cut the edges off and finally obtain a -//a polygon without intersections. The cut-off edges are -//dealloated. The new polygon is returned. -directedLine* DBG_cutIntersectionPoly(directedLine *polygon, int& cutOccur) -{ - directedLine *begin, *end, *next; - begin = polygon; - end = polygon; - cutOccur = 0; - while( (next = end->getNext()) != begin) - { - directedLine *interc = NULL; - if( (interc = DBG_edgeIntersectChainD(next, begin, end))) - { - int fixed = 0; - if(DBG_edgesIntersect(next, interc->getNext())) - { - //trying to fix it - Real buf[2]; - int i; - Int n=5; - buf[0] = interc->tail()[0]; - buf[1] = interc->tail()[1]; - - for(i=1; ihead()[0] + r * interc->tail()[0]; - Real v = (1-r) * interc->head()[1] + r * interc->tail()[1]; - interc->tail()[0] = interc->getNext()->head()[0] = u; - interc->tail()[1] = interc->getNext()->head()[1] = v; - if( (! DBG_edgesIntersect(next, interc)) && - (! DBG_edgesIntersect(next, interc->getNext()))) - break; //we fixed it - } - if(i==n) // we didn't fix it - { - fixed = 0; - //back to original - interc->tail()[0] = interc->getNext()->head()[0] = buf[0]; - interc->tail()[1] = interc->getNext()->head()[1] = buf[1]; - } - else - { - fixed = 1; - } - } - if(fixed == 0) - { - cutOccur = 1; - begin->deleteSingleLine(next); - - if(begin != end) - { - if(DBG_polygonSelfIntersect(begin)) - { - directedLine* newEnd = end->getPrev(); - begin->deleteSingleLine(end); - end = newEnd; - } - } - } - else - { - end = end->getNext(); - } - } - else - { - end = end->getNext(); - } - } - return begin; -} - -#ifdef UNUSED -//given a polygon, cut the edges off and finally obtain a -//a polygon without intersections. The cut-off edges are -//dealloated. The new polygon is returned. -static directedLine* DBG_cutIntersectionPoly_notwork(directedLine *polygon) -{ - directedLine *crt;//current polygon - directedLine *begin; - directedLine *end; - directedLine *temp; - crt = polygon; - int find=0; - while(1) - { -//printf("loop\n"); - //if there are less than 3 edges, we should stop - if(crt->getPrev()->getPrev() == crt) - return NULL; - - if(DBG_edgesIntersect(crt, crt->getNext()) || - (crt->head()[0] == crt->getNext()->tail()[0] && - crt->head()[1] == crt->getNext()->tail()[1]) - ) - { - find = 1; - crt=crt->deleteChain(crt, crt->getNext()); - } - else - { - //now we know crt and crt->getNext do not intersect - begin = crt; - end = crt->getNext(); -//printf("begin=(%f,%f)\n", begin->head()[0], begin->head()[1]); -//printf("end=(%f,%f)\n", end->head()[0], end->head()[1]); - for(temp=end->getNext(); temp!=begin; temp= temp->getNext()) - { -//printf("temp=(%f,%f)\n", temp->head()[0], temp->head()[1]); - directedLine *intersect = DBG_edgeIntersectChainD(temp, begin, end); - if(intersect != NULL) - { - crt = crt->deleteChain(intersect, temp); - find=1; - break; //the for loop - } - else - { - end = temp; - } - } - } - if(find == 0) - return crt; - else - find = 0; //go to next loop - } -} -#endif - -directedLine* DBG_cutIntersectionAllPoly(directedLine* list) -{ - directedLine* temp; - directedLine* tempNext=NULL; - directedLine* ret = NULL; - int cutOccur=0; - for(temp=list; temp != NULL; temp = tempNext) - { - directedLine *left; - tempNext = temp->getNextPolygon(); - - left = DBG_cutIntersectionPoly(temp, cutOccur); - if(left != NULL) - ret=left->insertPolygon(ret); - } - return ret; -} - -sampledLine* DBG_collectSampledLinesAllPoly(directedLine *polygonList) -{ - directedLine *temp; - sampledLine* tempHead = NULL; - sampledLine* tempTail = NULL; - sampledLine* cHead = NULL; - sampledLine* cTail = NULL; - - if(polygonList == NULL) - return NULL; - - DBG_collectSampledLinesPoly(polygonList, cHead, cTail); - - assert(cHead); - assert(cTail); - for(temp = polygonList->getNextPolygon(); temp != NULL; temp = temp->getNextPolygon()) - { - DBG_collectSampledLinesPoly(temp, tempHead, tempTail); - cTail->insert(tempHead); - cTail = tempTail; - } - return cHead; -} - -void DBG_collectSampledLinesPoly(directedLine *polygon, sampledLine*& retHead, sampledLine*& retTail) -{ - directedLine *temp; - retHead = NULL; - retTail = NULL; - if(polygon == NULL) - return; - - retHead = retTail = polygon->getSampledLine(); - for(temp = polygon->getNext(); temp != polygon; temp=temp->getNext()) - { - retHead = temp->getSampledLine()->insert(retHead); - } -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyDBG.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyDBG.h deleted file mode 100644 index 4ae08f676..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyDBG.h +++ /dev/null @@ -1,75 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyDBG.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _POLYDBG_H -#define _POLYDBG_H - -#include "definitions.h" -#include "directedLine.h" -#include "monoTriangulation.h" - -Int DBG_edgesIntersectGen(Real A[2], Real B[2], Real C[2], Real D[2]); -Int DBG_intersectChain(vertexArray* chain, Int start, Int end, Real A[2], Real B[2]); - - -Int DBG_edgesIntersect(directedLine* l1, directedLine* l2); -Int DBG_polygonSelfIntersect(directedLine* poly); -Int DBG_edgeIntersectPoly(directedLine* edge, directedLine* poly); -Int DBG_polygonsIntersect(directedLine* p1, directedLine* p2); -Int DBG_polygonListIntersect(directedLine* pList); - -Int DBG_isCounterclockwise(directedLine* poly); -Int DBG_rayIntersectEdge(Real v0[2], Real dx, Real dy, Real v10[2], Real v1[2], Real v2[2]); -Int DBG_pointInsidePoly(Real v[2], directedLine* poly); -Int DBG_enclosingPolygons(directedLine* poly, directedLine* list); -void DBG_reverse(directedLine* poly); -Int DBG_check(directedLine *polyList); - -Int DBG_isConvex(directedLine *poly); -Int DBG_is_U_direction(directedLine *poly); -Int DBG_is_U_monotone(directedLine* poly); - -directedLine* DBG_cutIntersectionAllPoly(directedLine* list); -directedLine* DBG_cutIntersectionPoly(directedLine *polygon, int& cutOccur); - -sampledLine* DBG_collectSampledLinesAllPoly(directedLine *polygonList); - -void DBG_collectSampledLinesPoly(directedLine *polygon, sampledLine*& retHead, sampledLine*& retTail); - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyUtil.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyUtil.cc deleted file mode 100644 index 2777321a7..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyUtil.cc +++ /dev/null @@ -1,92 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyUtil.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#include -#include - -#include "polyUtil.h" - -Real area(Real A[2], Real B[2], Real C[2]) -{ - Real Bx, By, Cx, Cy; - Bx = B[0] - A[0]; - By = B[1] - A[1]; - Cx = C[0] - A[0]; - Cy = C[1] - A[1]; - return Bx*Cy - Cx*By; - -/* return (B[0]-A[0])*(C[1]-A[1]) - (C[0]-A[0])*(B[1]-A[1]);*/ -} - -/*given a directed line A->B, and a point P, - *determine whether P is to the left of AB. - *the line A->B (imagine it has beedn extended both - *end to the infinity) divides the plan into two - *half planes. When we walk from A to B, one - *half is to the left and the other half is to the right. - *return 1 if P is to the left. - *if P is on AB, 0 is returned. - */ -Int pointLeftLine(Real A[2], Real B[2], Real P[2]) -{ - if(area(A, B, P) >0) return 1; - else return 0; -} - -/*given two directed line: A -> B -> C, and another point P. - *determine whether P is to the left hand side of A->B->C. - *Think of BA and BC extended as two rays. So that the plane is - * divided into two parts. One part is to the left we walk from A - *to B and to C, the other part is to the right. - * In order for P to be the left, P must be either to the left - *of - */ -Int pointLeft2Lines(Real A[2], Real B[2], Real C[2], Real P[2]) -{ - Int C_left_AB = (area(A, B, C)>0); - Int P_left_AB = (area(A, B, P)>0); - Int P_left_BC = (area(B, C, P)>0); - - if(C_left_AB) - { - return (P_left_AB && P_left_BC); - } - else - return (P_left_AB || P_left_BC); -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyUtil.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyUtil.h deleted file mode 100644 index 3df139736..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyUtil.h +++ /dev/null @@ -1,50 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/polyUtil.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _POLYUTIL_H -#define _POLYUTIL_H - -#include "definitions.h" - -Real area(Real A[2], Real B[2], Real C[2]); - -Int pointLeftLine(Real A[2], Real B[2], Real P[2]); -Int pointLeft2Lines(Real A[2], Real B[2], Real C[2], Real P[2]); - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/primitiveStream.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/primitiveStream.cc deleted file mode 100644 index aaa0c54a5..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/primitiveStream.cc +++ /dev/null @@ -1,192 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/primitiveStream.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#include "gluos.h" -#include -#include -#include -#include - -#include "primitiveStream.h" - -Int primStream::num_triangles() -{ - Int i; - Int ret=0; - for(i=0; i= size_vertices) { - Real* temp = (Real*) malloc (sizeof(Real) * (2*size_vertices + 2)); - assert(temp); - - /*copy*/ - for(Int i=0; i= size_lengths){ - Int* temp = (Int*) malloc(sizeof(Int) * (2*size_lengths + 2)); - assert(temp); - Int* tempTypes = (Int*) malloc(sizeof(Int) * (2*size_lengths + 2)); - assert(tempTypes); - - /*copy*/ - for(i=0; i - */ - -#ifndef _PRIMITIVE_STREAM_H -#define _PRIMITIVE_STREAM_H - -enum {PRIMITIVE_STREAM_FAN, PRIMITIVE_STREAM_STRIP}; - -#include "definitions.h" - -class primStream { - Int *lengths; /*length[i]=number of vertices of ith primitive*/ - Int *types; /*each primive has a type: FAN or STREAM*/ - Real *vertices; /*the size >= 2 * num_vertices, each vertex (u,v)*/ - - /*the following size information are used for dynamic arrays*/ - Int index_lengths; /*the current available entry*/ - Int size_lengths; /*the allocated size of the array: lengths*/ - Int index_vertices; - Int size_vertices; - - /*the vertex is inserted one by one. counter is used to - *count the number of vertices which have been inserted so far in - *the current primitive - */ - Int counter; - -public: - primStream(Int sizeLengths, Int sizeVertices); - ~primStream(); - - Int get_n_prims() //num of primitives - { - return index_lengths; - } - Int get_type(Int i) //the type of ith primitive - { - return types[i]; - } - Int get_length(Int i) //the length of the ith primitive - { - return lengths[i]; - } - Real* get_vertices() {return vertices;} - - /*the begining of inserting a new primitive. - *reset counter to be 0. - */ - void begin(); - void insert(Real u, Real v); - void insert(Real v[2]) {insert(v[0], v[1]);} - void end(Int type); - - Int num_triangles(); - - void triangle(Real A[2], Real B[2], Real C[2]) - { - begin(); - insert(A); - insert(B); - insert(C); - end(PRIMITIVE_STREAM_FAN); - } - void print(); - void draw(); /*using GL to draw the primitives*/ -}; - - - - - - - - -#endif - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/quicksort.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/quicksort.cc deleted file mode 100644 index d770d7e27..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/quicksort.cc +++ /dev/null @@ -1,84 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** Date Revision -*/ -/* -** Header: //depot/main/gfx/lib/glu/libnurbs/nurbtess/quicksort.cc#3 -*/ - - -/* $XFree86$ */ - -#include -#include - -static void swap(void *v[], int i, int j); - -/*as an example to use this function to - *sort integers, you need to supply the function - *int comp(int *i1, int *i2) - *{ - * if( *i1 < * i2) return -1; - * else return 1; - *} - *and an array of pointers to integers: - * int *v[100] (allocate space for where each v[i] points to). - *then you can call: - * quicksort( (void**)v, left, right, (int (*)(void *, void *))comp) - */ -void quicksort(void *v[], int left, int right, - int (*comp) (void *, void *)) -{ - int i, last; - if(left >= right) /*do nothing if array contains */ - return; /*fewer than two elements*/ - - swap(v, left, (left+right)/2); - last = left; - for(i=left+1; i<=right; i++) - if((*comp)(v[i], v[left])<0) - swap(v, ++last, i); - swap(v, left, last); - quicksort(v, left, last-1, comp); - quicksort(v, last+1, right, comp); -} - -static void swap(void *v[], int i, int j) -{ - void *temp; - temp = v[i]; - v[i] = v[j]; - v[j] = temp; -} - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/quicksort.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/quicksort.h deleted file mode 100644 index 9cfdd7f23..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/quicksort.h +++ /dev/null @@ -1,49 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/quicksort.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _QUICKSORT_H -#define _QUICKSORT_H - -#include -#include - -void quicksort(void *v[], int left, int right, - int (*comp) (void *, void *)); - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/rectBlock.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/rectBlock.cc deleted file mode 100644 index 84c894df9..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/rectBlock.cc +++ /dev/null @@ -1,198 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/rectBlock.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#include "gluos.h" -#include -#include -#include "glimports.h" -#include "zlassert.h" -#include - -#include "rectBlock.h" - -rectBlock::rectBlock(gridBoundaryChain* left, gridBoundaryChain* right, Int beginVline, Int endVline) -{ - Int i; - - - upGridLineIndex = left->getVlineIndex(beginVline); - - lowGridLineIndex = left->getVlineIndex(endVline); - - Int n = upGridLineIndex-lowGridLineIndex+1; //number of grid lines - leftIndices = (Int*) malloc(sizeof(Int) * n); - assert(leftIndices); - rightIndices = (Int*) malloc(sizeof(Int) * n); - assert(rightIndices); - for(i=0; igetInnerIndex(i+beginVline); - rightIndices[i] = right->getInnerIndex(i+beginVline); - } -} - - -rectBlock::~rectBlock() -{ - free(leftIndices); - free(rightIndices); -} - -void rectBlock::print() -{ - Int i; - printf("block:\n"); - for(i=upGridLineIndex; i >= lowGridLineIndex; i--) - { - printf("gridline %i, (%i,%i)\n", i, leftIndices[upGridLineIndex-i], rightIndices[upGridLineIndex-i]); - } -} - - - -void rectBlock::draw(Real* u_values, Real* v_values) -{ - Int i,j,k; - //upgrid line to bot grid line -#ifdef DEBUG -printf("upGridLineIndex=%i, lowGridLineIndex=%i\n", upGridLineIndex, lowGridLineIndex); -#endif - for(k=0, i=upGridLineIndex; i > lowGridLineIndex; i--, k++) - { - glBegin(GL_QUAD_STRIP); - - for(j=leftIndices[k+1]; j<= rightIndices[k+1]; j++) - { - glVertex2f(u_values[j], v_values[i]); - glVertex2f(u_values[j], v_values[i-1]); - } - glEnd(); - } -} - - -Int rectBlock::num_quads() -{ - Int ret=0; - Int k,i; - for(k=0, i=upGridLineIndex; i>lowGridLineIndex; i--, k++) - { - ret += (rightIndices[k+1]-leftIndices[k+1]); - } - return ret; -} - -Int rectBlockArray::num_quads() -{ - Int ret=0; - for(Int i=0; inum_quads(); - return ret; -} - -rectBlockArray::rectBlockArray(Int s) -{ - Int i; - n_elements = 0; - size = s; - array = (rectBlock**) malloc(sizeof(rectBlock*) * s); - assert(array); -//initialization - for(i=0; iprint(); -} - -void rectBlockArray::draw(Real* u_values, Real* v_values) -{ - Int i; - for(i=0; idraw(u_values, v_values); -} - - - - - - - - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/rectBlock.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/rectBlock.h deleted file mode 100644 index ae78b6a37..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/rectBlock.h +++ /dev/null @@ -1,89 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/rectBlock.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _RECTBLOCK_H -#define _RECTBLOCK_H - -#include "definitions.h" -#include "gridWrap.h" - -class rectBlock{ - Int upGridLineIndex; - Int lowGridLineIndex; - Int* leftIndices; //up to bottome - Int* rightIndices; //up to bottom -public: - //the arrays are copies. - rectBlock(gridBoundaryChain* left, gridBoundaryChain* right, Int beginVline, Int endVline); - ~rectBlock(); //free the two arrays - - Int get_upGridLineIndex() {return upGridLineIndex;} - Int get_lowGridLineIndex() {return lowGridLineIndex;} - Int* get_leftIndices() {return leftIndices;} - Int* get_rightIndices() {return rightIndices;} - - Int num_quads(); - - void print(); - void draw(Real* u_values, Real* v_values); -}; - - -class rectBlockArray{ - rectBlock** array; - Int n_elements; - Int size; -public: - rectBlockArray(Int s); - ~rectBlockArray();//delete avarything including the blocks - - Int get_n_elements() {return n_elements;} - rectBlock* get_element(Int i) {return array[i];} - void insert(rectBlock* newBlock); //only take the pointer, not ther cotent - - Int num_quads(); - - void print(); - void draw(Real* u_values, Real* v_values); -}; - - - -#endif - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleComp.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleComp.cc deleted file mode 100644 index 371a6610c..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleComp.cc +++ /dev/null @@ -1,373 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleComp.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#include -#include -#include "glimports.h" -#include "sampleComp.h" -#include "sampleCompTop.h" -#include "sampleCompBot.h" -#include "sampleCompRight.h" - - - -#define max(a,b) ((a>b)? a:b) -#define min(a,b) ((a>b)? b:a) - -void sampleConnectedComp(Real* topVertex, Real* botVertex, - vertexArray* leftChain, - Int leftStartIndex, Int leftEndIndex, - vertexArray* rightChain, - Int rightStartIndex, Int rightEndIndex, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridIndex1, Int gridIndex2, - Int up_leftCornerWhere, - Int up_leftCornerIndex, - Int up_rightCornerWhere, - Int up_rightCornerIndex, - Int down_leftCornerWhere, - Int down_leftCornerIndex, - Int down_rightCornerWhere, - Int down_rightCornerIndex, - primStream* pStream, - rectBlockArray* rbArray - ) -{ - - sampleCompLeft(topVertex, botVertex, - leftChain, - leftStartIndex, leftEndIndex, - rightChain, - rightStartIndex, rightEndIndex, - leftGridChain, - gridIndex1, - gridIndex2, - up_leftCornerWhere, - up_leftCornerIndex, - down_leftCornerWhere, - down_leftCornerIndex, - pStream); - - - sampleCompRight(topVertex, botVertex, - leftChain, - leftStartIndex, leftEndIndex, - rightChain, - rightStartIndex, - rightEndIndex, - rightGridChain, - gridIndex1, gridIndex2, - up_rightCornerWhere, - up_rightCornerIndex, - down_rightCornerWhere, - down_rightCornerIndex, - pStream); - - - sampleCompTop(topVertex, - leftChain, - leftStartIndex, - rightChain, - rightStartIndex, - leftGridChain, - rightGridChain, - gridIndex1, - up_leftCornerWhere, - up_leftCornerIndex, - up_rightCornerWhere, - up_rightCornerIndex, - pStream); - - sampleCompBot(botVertex, - leftChain, - leftEndIndex, - rightChain, - rightEndIndex, - leftGridChain, - rightGridChain, - gridIndex2, - down_leftCornerWhere, - down_leftCornerIndex, - down_rightCornerWhere, - down_rightCornerIndex, - pStream); - - - //the center - - rbArray->insert(new rectBlock(leftGridChain, rightGridChain, gridIndex1, gridIndex2)); - - -} - -/*notice that we need rightChain because the - *corners could be on the rightChain. - *here comp means component. - */ -void sampleCompLeft(Real* topVertex, Real* botVertex, - vertexArray* leftChain, - Int leftStartIndex, Int leftEndIndex, - vertexArray* rightChain, - Int rightStartIndex, Int rightEndIndex, - gridBoundaryChain* leftGridChain, - Int gridIndex1, Int gridIndex2, - Int up_leftCornerWhere, - Int up_leftCornerIndex, - Int down_leftCornerWhere, - Int down_leftCornerIndex, - primStream* pStream) -{ - /*find out whether there is a trim vertex which is - *inbetween the top and bot grid lines or not. - */ - Int midIndex1; - Int midIndex2; - Int gridMidIndex1, gridMidIndex2; - //midIndex1: array[i] <= v, array[i-1] > v - //midIndex2: array[i] >= v, array[i+1] < v - // v(gridMidIndex1) >= v(midindex1) > v(gridMidIndex1+1) - // v(gridMidIndex2-1) >= v(midIndex2) > v(gridMidIndex2) ?? - midIndex1 = leftChain->findIndexBelowGen( - leftGridChain->get_v_value(gridIndex1), - leftStartIndex, - leftEndIndex); - - midIndex2 = -1; /*initilization*/ - if(midIndex1<= leftEndIndex && gridIndex1getVertex(midIndex1)[1] >= leftGridChain->get_v_value(gridIndex2)) - { - midIndex2 = leftChain->findIndexAboveGen( - leftGridChain->get_v_value(gridIndex2), - midIndex1, //midIndex1 <= midIndex2. - leftEndIndex); - gridMidIndex1 = leftGridChain->lookfor(leftChain->getVertex(midIndex1)[1], - gridIndex1, gridIndex2); - gridMidIndex2 = 1+leftGridChain->lookfor(leftChain->getVertex(midIndex2)[1], - gridMidIndex1, gridIndex2); - } - - - /*to interprete the corner information*/ - Real* cornerTop; - Real* cornerBot; - Int cornerLeftStart; - Int cornerLeftEnd; - Int cornerRightUpEnd; - Int cornerRightDownStart; - if(up_leftCornerWhere == 0) /*left corner is on left chain*/ - { - cornerTop = leftChain->getVertex(up_leftCornerIndex); - cornerLeftStart = up_leftCornerIndex+1; - cornerRightUpEnd = -1; /*no right*/ - } - else if(up_leftCornerWhere == 1) /*left corner is on top*/ - { - cornerTop = topVertex; - cornerLeftStart = leftStartIndex; - cornerRightUpEnd = -1; /*no right*/ - } - else /*left corner is on right chain*/ - { - cornerTop = topVertex; - cornerLeftStart = leftStartIndex; - cornerRightUpEnd = up_leftCornerIndex; - } - - if(down_leftCornerWhere == 0) /*left corner is on left chain*/ - { - cornerBot = leftChain->getVertex(down_leftCornerIndex); - cornerLeftEnd = down_leftCornerIndex-1; - cornerRightDownStart = rightEndIndex+1; /*no right*/ - } - else if(down_leftCornerWhere == 1) /*left corner is on bot*/ - { - cornerBot = botVertex; - cornerLeftEnd = leftEndIndex; - cornerRightDownStart = rightEndIndex+1; /*no right*/ - } - else /*left corner is on the right chian*/ - { - cornerBot = botVertex; - cornerLeftEnd = leftEndIndex; - cornerRightDownStart = down_leftCornerIndex; - } - - - - - /*sample*/ - if(midIndex2 >= 0) /*there is a trim point inbewteen grid lines*/ - { - - sampleLeftSingleTrimEdgeRegionGen(cornerTop, leftChain->getVertex(midIndex1), - leftChain, - cornerLeftStart, - midIndex1-1, - leftGridChain, - gridIndex1, - gridMidIndex1, - rightChain, - rightStartIndex, - cornerRightUpEnd, - 0, //no right down section - -1, - pStream); - - sampleLeftSingleTrimEdgeRegionGen(leftChain->getVertex(midIndex2), - cornerBot, - leftChain, - midIndex2+1, - cornerLeftEnd, - leftGridChain, - gridMidIndex2, - gridIndex2, - rightChain, - 0, //no right up section - -1, - cornerRightDownStart, - rightEndIndex, - pStream); - - - sampleLeftStripRecF(leftChain, - midIndex1, - midIndex2, - leftGridChain, - gridMidIndex1, - gridMidIndex2, - pStream); - } - else - { - sampleLeftSingleTrimEdgeRegionGen(cornerTop, cornerBot, - leftChain, - cornerLeftStart, - cornerLeftEnd, - leftGridChain, - gridIndex1, - gridIndex2, - rightChain, - rightStartIndex, - cornerRightUpEnd, - cornerRightDownStart, - rightEndIndex, - pStream); - } -} - -void sampleLeftSingleTrimEdgeRegionGen(Real topVert[2], Real botVert[2], - vertexArray* leftChain, - Int leftStart, - Int leftEnd, - gridBoundaryChain* gridChain, - Int gridBeginIndex, - Int gridEndIndex, - vertexArray* rightChain, - Int rightUpBegin, - Int rightUpEnd, - Int rightDownBegin, - Int rightDownEnd, - primStream* pStream) -{ - Int i,j,k; - - /*creat an array to store all the up and down secments of the right chain, - *and the left end grid points - * - *although vertex array is a dynamic array, but to gain efficiency, - *it is better to initiliza the exact array size - */ - vertexArray vArray(gridEndIndex-gridBeginIndex+1 + - max(0,rightUpEnd - rightUpBegin+1)+ - max(0,rightDownEnd - rightDownBegin+1)); - - /*append the vertices on the up section of thr right chain*/ - for(i=rightUpBegin; i<= rightUpEnd; i++) - vArray.appendVertex(rightChain->getVertex(i)); - - /*append the vertices of the left extremal grid points, - *and at the same time, perform triangulation for the stair cases - */ - vArray.appendVertex(gridChain->get_vertex(gridBeginIndex)); - - for(k=1, i=gridBeginIndex+1; i<=gridEndIndex; i++, k++) - { - vArray.appendVertex(gridChain->get_vertex(i)); - - /*output the fan of the grid points of the (i)th and (i-1)th grid line. - */ - if(gridChain->getUlineIndex(i) < gridChain->getUlineIndex(i-1)) - { - pStream->begin(); - pStream->insert(gridChain->get_vertex(i-1)); - for(j=gridChain->getUlineIndex(i); j<= gridChain->getUlineIndex(i-1); j++) - pStream->insert(gridChain->getGrid()->get_u_value(j), gridChain->get_v_value(i)); - pStream->end(PRIMITIVE_STREAM_FAN); - } - else if(gridChain->getUlineIndex(i) > gridChain->getUlineIndex(i-1)) - { - pStream->begin(); - pStream->insert(gridChain->get_vertex(i)); - for(j=gridChain->getUlineIndex(i); j>= gridChain->getUlineIndex(i-1); j--) - pStream->insert(gridChain->getGrid()->get_u_value(j), gridChain->get_v_value(i-1)); - pStream->end(PRIMITIVE_STREAM_FAN); - } - /*otherwisem, the two are equal, so there is no fan to outout*/ - } - - /*then append all the vertices on the down section of the right chain*/ - for(i=rightDownBegin; i<= rightDownEnd; i++) - vArray.appendVertex(rightChain->getVertex(i)); - - monoTriangulationRecGen(topVert, botVert, - leftChain, leftStart, leftEnd, - &vArray, 0, vArray.getNumElements()-1, - pStream); - -} - - - - - - - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleComp.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleComp.h deleted file mode 100644 index ef9cb7b5d..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleComp.h +++ /dev/null @@ -1,93 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleComp.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _SAMPLECOMP_H -#define _SAMPLECOMP_H - -#include "sampleMonoPoly.h" -#include "rectBlock.h" - -void sampleConnectedComp(Real* topVertex, Real* botVertex, - vertexArray* leftChain, - Int leftStartIndex, Int botLeftIndex, - vertexArray* rightChain, - Int rightStartIndex, Int botRightIndex, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridIndex1, Int gridIndex2, - Int up_leftCornerWhere, - Int up_leftCornerIndex, - Int up_rightCornerWhere, - Int up_rightCornerIndex, - Int down_leftCornerWhere, - Int down_leftCornerIndex, - Int down_rightCornerWhere, - Int down_rightCornerIndex, - primStream* pStream, - rectBlockArray* rbArray - ); - -void sampleCompLeft(Real* topVertex, Real* botVertex, - vertexArray* leftChain, - Int leftStartIndex, Int leftEndIndex, - vertexArray* rightChain, - Int rightStartIndex, Int rightEndIndex, - gridBoundaryChain* leftGridChain, - Int gridIndex1, Int gridIndex2, - Int up_leftCornerWhere, - Int up_leftCornerIndex, - Int down_leftCornerWhere, - Int down_leftCornerIndex, - primStream* pStream); - -void sampleLeftSingleTrimEdgeRegionGen(Real topVert[2], Real botVert[2], - vertexArray* leftChain, - Int leftStart, - Int leftEnd, - gridBoundaryChain* gridChain, - Int gridBegindex, - Int gridEndIndex, - vertexArray* rightChain, - Int rightUpBegin, - Int rightUpEnd, - Int rightDownBegin, - Int rightDownEnd, - primStream* pStream); - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompBot.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompBot.cc deleted file mode 100644 index 06a3d0852..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompBot.cc +++ /dev/null @@ -1,846 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompBot.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#include -#include -#include "zlassert.h" -#include "sampleCompBot.h" -#include "sampleCompRight.h" - -#define max(a,b) ((a>b)? a:b) - -//return: index_mono, index_pass -//from [pass, mono] is strictly U-monotone -//from [corner, pass] is = u -//if everybost is getVertex(i)[0] >= u) - break; - ret_index_pass = i; - if(ret_index_pass <= leftEnd) - { - for(i=ret_index_pass; i< leftEnd; i++) - { - if(leftChain->getVertex(i+1)[0] <= leftChain->getVertex(i)[0]) - break; - } - ret_index_mono = i; - } - -} - -void findBotRightSegment(vertexArray* rightChain, - Int rightEnd, - Int rightCorner, - Real u, - Int& ret_index_mono, - Int& ret_index_pass) -{ - Int i; - assert(rightCorner <= rightEnd); - for(i=rightCorner; i<= rightEnd; i++) - if(rightChain->getVertex(i)[0] <= u) - break; - - - - ret_index_pass = i; - - if(ret_index_pass <= rightEnd) - { - for(i=ret_index_pass; i< rightEnd; i++) - { - if(rightChain->getVertex(i+1)[0] >= rightChain->getVertex(i)[0]) - break; - } - ret_index_mono = i; - } -} - - -void sampleBotRightWithGridLinePost(Real* botVertex, - vertexArray* rightChain, - Int rightEnd, - Int segIndexMono, - Int segIndexPass, - Int rightCorner, - gridWrap* grid, - Int gridV, - Int leftU, - Int rightU, - primStream* pStream) -{ - //the possible section which is to the right of rightU - if(segIndexPass > rightCorner) //from corner to pass-1 is > u. - { - Real *tempBot; - if(segIndexPass <= rightEnd) //there is a point to the left of u - tempBot = rightChain->getVertex(segIndexPass); - else //nothing is to the left of u. - tempBot = botVertex; - Real tempTop[2]; - tempTop[0] = grid->get_u_value(rightU); - tempTop[1] = grid->get_v_value(gridV); - - monoTriangulation2(tempTop, tempBot, - rightChain, - rightCorner, - segIndexPass-1, - 0, // a decrease chain - pStream); - } - - //the possible section which is strictly Umonotone - if(segIndexPass <= rightEnd) //segIndex pass and mono exist - { - //if there are grid points which are to the left of botVertex - //then we should use botVertex to form a fan with these points to - //optimize the triangulation - int do_optimize = 1; - if(botVertex[0] <= grid->get_u_value(leftU)) - do_optimize = 0; - else - { - //we also have to make sure that botVertex is the left most vertex on the chain - int i; - for(i=segIndexMono; i<=rightEnd; i++) - if(rightChain->getVertex(i)[0] <= botVertex[0]) - { - do_optimize = 0; - break; - } - } - - if(do_optimize) - { - //find midU so that grid->get_u_value(midU) <= botVertex[0] - //and grid->get_u_value(midU) > botVertex[0] - int midU = leftU; - while(grid->get_u_value(midU) <= botVertex[0]) - { - midU++; - if(midU > rightU) - break; - } - midU--; - - grid->outputFanWithPoint(gridV, leftU, midU, botVertex, pStream); - stripOfFanRight(rightChain, segIndexMono, segIndexPass, grid, gridV, midU, rightU, pStream, 1); - Real tempTop[2]; - tempTop[0] = grid->get_u_value(midU); - tempTop[1] = grid->get_v_value(gridV); - monoTriangulation2(tempTop, botVertex, rightChain, segIndexMono, rightEnd, 0, pStream); - } - else //not optimize - { - stripOfFanRight(rightChain, segIndexMono, segIndexPass, grid, gridV, leftU, rightU, pStream, 1); - Real tempTop[2]; - tempTop[0] = grid->get_u_value(leftU); - tempTop[1] = grid->get_v_value(gridV); - monoTriangulation2(tempTop, botVertex, rightChain, segIndexMono, rightEnd, 0, pStream); - } - } - else //the botVertex forms a fan witht eh grid points - grid->outputFanWithPoint(gridV, leftU, rightU, botVertex, pStream); -} - -void sampleBotRightWithGridLine(Real* botVertex, - vertexArray* rightChain, - Int rightEnd, - Int rightCorner, - gridWrap* grid, - Int gridV, - Int leftU, - Int rightU, - primStream* pStream) -{ - //if right chaain is empty, then there is only one bot vertex with - //one grid line - if(rightEndoutputFanWithPoint(gridV, leftU, rightU, botVertex, pStream); - return; - } - - Int segIndexMono, segIndexPass; - findBotRightSegment(rightChain, - rightEnd, - rightCorner, - grid->get_u_value(rightU), - segIndexMono, - segIndexPass); - - sampleBotRightWithGridLinePost(botVertex, - rightChain, - rightEnd, - segIndexMono, - segIndexPass, - rightCorner, - grid, - gridV, - leftU, - rightU, - pStream); -} - - -void sampleBotLeftWithGridLinePost(Real* botVertex, - vertexArray* leftChain, - Int leftEnd, - Int segIndexMono, - Int segIndexPass, - Int leftCorner, - gridWrap* grid, - Int gridV, - Int leftU, - Int rightU, - primStream* pStream) -{ - - //the possible section which is to the left of leftU - if(segIndexPass > leftCorner) //at least leftCorner is to the left of leftU - { - Real *tempBot; - if(segIndexPass <= leftEnd) //from corner to pass-1 is getVertex(segIndexPass); - else //nothing is to the rigth of u - tempBot = botVertex; - Real tempTop[2]; - tempTop[0] = grid->get_u_value(leftU); - tempTop[1] = grid->get_v_value(gridV); - monoTriangulation2(tempTop, tempBot, leftChain, leftCorner, segIndexPass-1, - 1, //a increase chain, - pStream); - } - //the possible section which is strictly Umonotone - if(segIndexPass <= leftEnd) //segIndexpass and mono exist - { - stripOfFanLeft(leftChain, segIndexMono, segIndexPass, grid, gridV, leftU, rightU, pStream, 1); - Real tempTop[2]; - tempTop[0] = grid->get_u_value(rightU); - tempTop[1] = grid->get_v_value(gridV); - - monoTriangulation2(tempTop, botVertex, leftChain, segIndexMono, leftEnd, - 1, //increase chain - pStream); - } - else //the botVertex forms a fan with the grid points - { - grid->outputFanWithPoint(gridV, leftU, rightU, botVertex, pStream); - } - -} - -void sampleBotLeftWithGridLine(Real* botVertex, - vertexArray* leftChain, - Int leftEnd, - Int leftCorner, - gridWrap* grid, - Int gridV, - Int leftU, - Int rightU, - primStream* pStream) -{ - - //if leftChain is empty, then there is only one botVertex with one grid line - if(leftEnd< leftCorner){ - grid->outputFanWithPoint(gridV, leftU, rightU, botVertex, pStream); - return; - } - - Int segIndexPass, segIndexMono; - findBotLeftSegment(leftChain, leftEnd, leftCorner, grid->get_u_value(leftU), segIndexMono, segIndexPass); - - sampleBotLeftWithGridLinePost(botVertex, - leftChain, - leftEnd, - segIndexMono, - segIndexPass, - leftCorner, - grid, - gridV, - leftU, rightU, pStream); -} - -//return 1 if separator exists, 0 otherwise -Int findBotSeparator(vertexArray* leftChain, - Int leftEnd, - Int leftCorner, - vertexArray* rightChain, - Int rightEnd, - Int rightCorner, - Int& ret_sep_left, - Int& ret_sep_right) -{ - Int oldLeftI, oldRightI, newLeftI, newRightI; - Int i,j,k; - Real leftMax /*= leftChain->getVertex(leftCorner)[0]*/; - Real rightMin /*= rightChain->getVertex(rightCorner)[0]*/; - if(leftChain->getVertex(leftCorner)[1] < rightChain->getVertex(rightCorner)[1])//leftlower - { - oldLeftI = leftCorner-1; - oldRightI = rightCorner; - leftMax = leftChain->getVertex(leftCorner)[0] - 1.0 ; //initilize to be left of leftCorner - rightMin = rightChain->getVertex(rightCorner)[0]; - } - else //rightlower - { - oldLeftI = leftCorner; - oldRightI = rightCorner-1; - leftMax = leftChain->getVertex(leftCorner)[0]; - rightMin = rightChain->getVertex(rightCorner)[0] + 1.0; - } - - //i: the current working leftChain Index - //j: the curent working right chian index - //if(left(i) is lower than right(j), then the two chains above right(j) are separated. - //else the two chains below left(i) are separated. - i = leftCorner; - j = rightCorner; - while(1) - { - newLeftI = oldLeftI; - newRightI = oldRightI; - if(i> leftEnd) //left chain is doen , go through remaining right chain - { - for(k=j+1; k<= rightEnd; k++) - { - if(rightChain->getVertex(k)[0] > leftMax) //no conflict - { - //update oldRightI if necessary - if(rightChain->getVertex(k)[0] < rightMin) - { - rightMin = rightChain->getVertex(k)[0]; - oldRightI = k; - } - } - else //there is a conflict - break; //the for-loop, above right(k+1) is separated: oldLeftI, oldRightI - } - break; //the while loop - } - else if(j > rightEnd) //right Chain is doen - { - for(k=i+1; k<= leftEnd; k++) - { - if(leftChain->getVertex(k)[0] < rightMin) //no conflict - { - //update oldLeftI if necessary - if(leftChain->getVertex(k)[0] > leftMax) - { - leftMax = leftChain->getVertex(k)[0]; - oldLeftI = k; - } - } - else //there is a conflict - break; //the for-loop, above left(k+1) is separated: oldLeftI, oldRightI - } - break; //the while loop - } - else if(leftChain->getVertex(i)[1] < rightChain->getVertex(j)[1]) //left lower - { - - if(leftChain->getVertex(i)[0] > leftMax) //update leftMax amd newLeftI - { - leftMax = leftChain->getVertex(i)[0]; - newLeftI = i; - } - for(k=j+1; k<= rightEnd; k++) //update rightMin and newRightI; - { - if(rightChain->getVertex(k)[1] < leftChain->getVertex(i)[1]) //right gets lower - break; - if(rightChain->getVertex(k)[0] < rightMin) - { - rightMin = rightChain->getVertex(k)[0]; - newRightI = k; - } - } - j = k; //next working j, since j will he lower than i in next loop - if(leftMax >= rightMin) //there is a conflict - break; - else //still no conflict - { - oldLeftI = newLeftI; - oldRightI = newRightI; - - } - } - else //right lower - { - if(rightChain->getVertex(j)[0] < rightMin) - { - rightMin = rightChain->getVertex(j)[0]; - newRightI = j; - } - for(k=i+1; k<= leftEnd; k++) - { - if(leftChain->getVertex(k)[1] < rightChain->getVertex(j)[1]) - break; - if(leftChain->getVertex(k)[0] > leftMax) - { - leftMax = leftChain->getVertex(k)[0]; - newLeftI = k; - } - } - i=k; //nexct working i, since i will be lower than j next loop - if(leftMax >= rightMin) //there is conflict - break; - else //still no conflict - { - oldLeftI = newLeftI; - oldRightI = newRightI; - } - } - }//end of while loop - //now oldLeftI and oldRight I are the desired separator index notice that they are not - //necessarily valid - if(oldLeftI < leftCorner || oldRightI < rightCorner) - return 0; //no separator - else - { - ret_sep_left = oldLeftI; - ret_sep_right = oldRightI; - return 1; - } -} - -void sampleCompBot(Real* botVertex, - vertexArray* leftChain, - Int leftEnd, - vertexArray* rightChain, - Int rightEnd, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridIndex, - Int down_leftCornerWhere, - Int down_leftCornerIndex, - Int down_rightCornerWhere, - Int down_rightCornerIndex, - primStream* pStream) -{ - - if(down_leftCornerWhere == 1 && down_rightCornerWhere == 1) //the bot is botVertex with possible grid points - { - - leftGridChain->getGrid()->outputFanWithPoint(leftGridChain->getVlineIndex(gridIndex), - leftGridChain->getUlineIndex(gridIndex), - rightGridChain->getUlineIndex(gridIndex), - botVertex, - pStream); - return; - } - else if(down_leftCornerWhere != 0) - { - - Real* tempBot; - Int tempRightEnd; - if(down_leftCornerWhere == 1){ - tempRightEnd = rightEnd; - tempBot = botVertex; - } - else - { - tempRightEnd = down_leftCornerIndex-1; - tempBot = rightChain->getVertex(down_leftCornerIndex); - } - - sampleBotRightWithGridLine(tempBot, - rightChain, - tempRightEnd, - down_rightCornerIndex, - rightGridChain->getGrid(), - leftGridChain->getVlineIndex(gridIndex), - leftGridChain->getUlineIndex(gridIndex), - rightGridChain->getUlineIndex(gridIndex), - pStream); - } - else if(down_rightCornerWhere != 2) - { - - Real* tempBot; - Int tempLeftEnd; - if(down_rightCornerWhere == 1){ - tempLeftEnd = leftEnd; - tempBot = botVertex; - } - else //right corner is on left chain - { - tempLeftEnd = down_rightCornerIndex-1; - tempBot = leftChain->getVertex(down_rightCornerIndex); - } - - - sampleBotLeftWithGridLine(tempBot, leftChain, tempLeftEnd, down_leftCornerIndex, - leftGridChain->getGrid(), - leftGridChain->getVlineIndex(gridIndex), - leftGridChain->getUlineIndex(gridIndex), - rightGridChain->getUlineIndex(gridIndex), - pStream); - - } - else //down_leftCornereWhere == 0, down_rightCornerwhere == 2 - { - sampleCompBotSimple(botVertex, - leftChain, - leftEnd, - rightChain, - rightEnd, - leftGridChain, - rightGridChain, - gridIndex, - down_leftCornerWhere, - down_leftCornerIndex, - down_rightCornerWhere, - down_rightCornerIndex, - pStream); - - return; - -#ifdef NOT_REACHABLE - //the following code is trying to do some optimization, but not quite working. so it is not reachable, but leave it here for reference - Int sep_left, sep_right; - if(findBotSeparator(leftChain, leftEnd, down_leftCornerIndex, - rightChain, rightEnd, down_rightCornerIndex, - sep_left, sep_right) - )//separator exiosts - { - - if(leftChain->getVertex(sep_left)[0] >= leftGridChain->get_u_value(gridIndex) && - rightChain->getVertex(sep_right)[0] <= rightGridChain->get_u_value(gridIndex)) - { - Int gridSep; - Int segLeftMono, segLeftPass, segRightMono, segRightPass; - findBotLeftSegment(leftChain, - sep_left, - down_leftCornerIndex, - leftGridChain->get_u_value(gridIndex), - segLeftMono, - segLeftPass); - findBotRightSegment(rightChain, - sep_right, - down_rightCornerIndex, - rightGridChain->get_u_value(gridIndex), - segRightMono, - segRightPass); - if(leftChain->getVertex(segLeftMono)[1] <= rightChain->getVertex(segRightMono)[1]) - { - gridSep = rightGridChain->getUlineIndex(gridIndex); - while(leftGridChain->getGrid()->get_u_value(gridSep) > leftChain->getVertex(segLeftMono)[0]) - gridSep--; - } - else - { - gridSep = leftGridChain->getUlineIndex(gridIndex); - while(leftGridChain->getGrid()->get_u_value(gridSep) < rightChain->getVertex(segRightMono)[0]) - gridSep++; - } - - sampleBotLeftWithGridLinePost(leftChain->getVertex(segLeftMono), - leftChain, - segLeftMono-1, - segLeftMono-1, - segLeftPass, - down_leftCornerIndex, - leftGridChain->getGrid(), - leftGridChain->getVlineIndex(gridIndex), - leftGridChain->getUlineIndex(gridIndex), - gridSep, - pStream); - sampleBotRightWithGridLinePost(rightChain->getVertex(segRightMono), - rightChain, - segRightMono-1, - segRightMono-1, - segRightPass, - down_rightCornerIndex, - rightGridChain->getGrid(), - rightGridChain->getVlineIndex(gridIndex), - gridSep, - rightGridChain->getUlineIndex(gridIndex), - pStream); - Real tempTop[2]; - tempTop[0] = leftGridChain->getGrid()->get_u_value(gridSep); - tempTop[1] = leftGridChain->get_v_value(gridIndex); - monoTriangulationRecGen(tempTop, botVertex, - leftChain, segLeftMono, leftEnd, - rightChain, segRightMono, rightEnd, - pStream); - }//end if both sides have vertices inside the gridboundary points - else if(leftChain->getVertex(sep_left)[0] >= leftGridChain->get_u_value(gridIndex)) //left n right out - - { - Int segLeftMono, segLeftPass; - findBotLeftSegment(leftChain, - sep_left, - down_leftCornerIndex, - leftGridChain->get_u_value(gridIndex), - segLeftMono, - segLeftPass); - assert(segLeftPass <= sep_left); //make sure there is a point to the right of u. - monoTriangulation2(leftGridChain->get_vertex(gridIndex), - leftChain->getVertex(segLeftPass), - leftChain, - down_leftCornerIndex, - segLeftPass-1, - 1, //a increase chain - pStream); - stripOfFanLeft(leftChain, segLeftMono, segLeftPass, - leftGridChain->getGrid(), - leftGridChain->getVlineIndex(gridIndex), - leftGridChain->getUlineIndex(gridIndex), - rightGridChain->getUlineIndex(gridIndex), - pStream,1 ); -/* - sampleBotLeftWithGridLinePost(leftChain->getVertex(segLeftMono), - leftChain, - segLeftMono-1, - segLeftMono-1, - segLeftPass, - down_leftCornerIndex, - leftGridChain->getGrid(), - leftGridChain->getVlineIndex(gridIndex), - leftGridChain->getUlineIndex(gridIndex), - rightGridChain->getUlineIndex(gridIndex), - pStream); -*/ - - monoTriangulationRecGen(rightGridChain->get_vertex(gridIndex), - botVertex, - leftChain, segLeftMono, leftEnd, - rightChain, down_rightCornerIndex, rightEnd, - pStream); - }//end left in right out - else if(rightChain->getVertex(sep_right)[0] <= rightGridChain->get_u_value(gridIndex))//left out right in - { - Int segRightMono, segRightPass; - findBotRightSegment(rightChain, sep_right, down_rightCornerIndex, - rightGridChain->get_u_value(gridIndex), - segRightMono, - segRightPass); - - assert(segRightPass <= sep_right); //make sure there is a point to the left of u. - monoTriangulation2(rightGridChain->get_vertex(gridIndex), - rightChain->getVertex(segRightPass), - rightChain, - down_rightCornerIndex, - segRightPass-1, - 0, // a decrease chain - pStream); - - stripOfFanRight(rightChain, segRightMono, segRightPass, - rightGridChain->getGrid(), - rightGridChain->getVlineIndex(gridIndex), - leftGridChain->getUlineIndex(gridIndex), - rightGridChain->getUlineIndex(gridIndex), - pStream, 1); - - - monoTriangulationRecGen(leftGridChain->get_vertex(gridIndex), - botVertex, - leftChain, down_leftCornerIndex, leftEnd, - rightChain, segRightMono, rightEnd, - pStream); - - }//end left out right in - else //left out, right out - { - sampleCompBotSimple(botVertex, - leftChain, - leftEnd, - rightChain, - rightEnd, - leftGridChain, - rightGridChain, - gridIndex, - down_leftCornerWhere, - down_leftCornerIndex, - down_rightCornerWhere, - down_rightCornerIndex, - pStream); - - }//end leftout right out - }//end if separator exists - else //no separator - { - - sampleCompBotSimple(botVertex, - leftChain, - leftEnd, - rightChain, - rightEnd, - leftGridChain, - rightGridChain, - gridIndex, - down_leftCornerWhere, - down_leftCornerIndex, - down_rightCornerWhere, - down_rightCornerIndex, - pStream); - } -#endif - }//end id 0 2 -}//end if the functin - - -void sampleCompBotSimple(Real* botVertex, - vertexArray* leftChain, - Int leftEnd, - vertexArray* rightChain, - Int rightEnd, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridIndex, - Int down_leftCornerWhere, - Int down_leftCornerIndex, - Int down_rightCornerWhere, - Int down_rightCornerIndex, - primStream* pStream) -{ - //the plan is to use monotriangulation algorithm. - Int i,k; - Real* ActualTop; - Real* ActualBot; - Int ActualLeftStart, ActualLeftEnd; - Int ActualRightStart, ActualRightEnd; - - //creat an array to store the points on the grid line - gridWrap* grid = leftGridChain->getGrid(); - Int gridV = leftGridChain->getVlineIndex(gridIndex); - Int gridLeftU = leftGridChain->getUlineIndex(gridIndex); - Int gridRightU = rightGridChain->getUlineIndex(gridIndex); - Real2* gridPoints = (Real2*) malloc(sizeof(Real2) * (gridRightU - gridLeftU +1)); - assert(gridPoints); - - for(k=0, i=gridRightU; i>= gridLeftU; i--, k++) - { - gridPoints[k][0] = grid->get_u_value(i); - gridPoints[k][1] = grid->get_v_value(gridV); - } - - if(down_rightCornerWhere != 0) //rightCorner is not on lef - ActualLeftEnd = leftEnd; - else - ActualLeftEnd = down_rightCornerIndex-1; //down_rightCornerIndex will be th actualBot - - if(down_leftCornerWhere != 0) //left corner is not on let chian - ActualLeftStart = leftEnd+1; //meaning that there is no actual left section - else - ActualLeftStart = down_leftCornerIndex; - - vertexArray ActualLeftChain(max(0, ActualLeftEnd - ActualLeftStart +1) + gridRightU - gridLeftU +1); - - for(i=0; igetVertex(i)); - - //determine ActualRightStart - if(down_rightCornerWhere != 2) //right is not on right - ActualRightStart = rightEnd +1; //meaning no section on right - else - ActualRightStart = down_rightCornerIndex; - - //determine actualrightEnd - if(down_leftCornerWhere != 2) //left is not on right - { - - ActualRightEnd = rightEnd; - } - else //left corner is on right - { - ActualRightEnd = down_leftCornerIndex-1; //down_leftCornerIndex will be the bot - - } - - //actual bot - if(down_rightCornerWhere == 2) - { - if(down_leftCornerWhere == 2) - ActualBot = rightChain->getVertex(down_leftCornerIndex); - else - ActualBot = botVertex; - } - else if(down_rightCornerWhere == 1) //right corner bot - ActualBot = botVertex; - else //down_rightCornerWhere == 0 - ActualBot = leftChain->getVertex(down_rightCornerIndex); - - ActualTop = gridPoints[0]; -/* -printf("in bot simple, actual leftChain is \n"); -ActualLeftChain.print(); -printf("Actual Top = %f,%f\n", ActualTop[0],ActualTop[1]); -printf("Actual Bot = %f,%f\n", ActualBot[0],ActualBot[1]); -printf("Actual right start = %i, end=%i\n",ActualRightStart, ActualRightEnd); -*/ - if(rightChain->getVertex(ActualRightStart)[1] == ActualTop[1]) - monoTriangulationRecGenOpt(rightChain->getVertex(ActualRightStart), - ActualBot, - &ActualLeftChain, - 0, - ActualLeftChain.getNumElements()-1, - rightChain, - ActualRightStart+1, - ActualRightEnd, - pStream); - else - monoTriangulationRecGenOpt(ActualTop, ActualBot, - &ActualLeftChain, - 1, //the first one is the top vertex - ActualLeftChain.getNumElements()-1, - rightChain, - ActualRightStart, - ActualRightEnd, - pStream); - free(gridPoints); -} - - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompBot.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompBot.h deleted file mode 100644 index af3893f47..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompBot.h +++ /dev/null @@ -1,145 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompBot.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _SAMPLECOMPBOT_H -#define _SAMPLECOMPBOT_H - -#include "sampleMonoPoly.h" - -void findBotLeftSegment(vertexArray* leftChain, - Int leftEnd, - Int leftCorner, - Real u, - Int& ret_index_mono, - Int& ret_index_pass); - -void findBotRightSegment(vertexArray* rightChain, - Int rightEnd, - Int rightCorner, - Real u, - Int& ret_index_mono, - Int& ret_index_pass); - - -void sampleBotRightWithGridLinePost(Real* botVertex, - vertexArray* rightChain, - Int rightEnd, - Int segIndexMono, - Int segIndexPass, - Int rightCorner, - gridWrap* grid, - Int gridV, - Int leftU, - Int rightU, - primStream* pStream); - - -void sampleBotRightWithGridLine(Real* botVertex, - vertexArray* rightChain, - Int rightEnd, - Int rightCorner, - gridWrap* grid, - Int gridV, - Int leftU, - Int rightU, - primStream* pStream); - - -void sampleBotLeftWithGridLinePost(Real* botVertex, - vertexArray* leftChain, - Int leftEnd, - Int segIndexMono, - Int segIndexPass, - Int leftCorner, - gridWrap* grid, - Int gridV, - Int leftU, - Int rightU, - primStream* pStream); - - -void sampleBotLeftWithGridLine(Real* botVertex, - vertexArray* leftChain, - Int leftEnd, - Int leftCorner, - gridWrap* grid, - Int gridV, - Int leftU, - Int rightU, - primStream* pStream); - - -Int findBotSeparator(vertexArray* leftChain, - Int leftEnd, - Int leftCorner, - vertexArray* rightChain, - Int rightEnd, - Int rightCorner, - Int& ret_sep_left, - Int& ret_sep_right); - -void sampleCompBot(Real* botVertex, - vertexArray* leftChain, - Int leftEnd, - vertexArray* rightChain, - Int rightEnd, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridIndex, - Int down_leftCornerWhere, - Int down_leftCornerIndex, - Int down_rightCornerWhere, - Int down_rightCornerIndex, - primStream* pStream); - -void sampleCompBotSimple(Real* botVertex, - vertexArray* leftChain, - Int leftEnd, - vertexArray* rightChain, - Int rightEnd, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridIndex, - Int down_leftCornerWhere, - Int down_leftCornerIndex, - Int down_rightCornerWhere, - Int down_rightCornerIndex, - primStream* pStream); - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompRight.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompRight.cc deleted file mode 100644 index 4dc8cbaaa..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompRight.cc +++ /dev/null @@ -1,648 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/04/23 18:42:56 $ $Revision: 1.2 $ -*/ -/* $XFree86$ */ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompRight.cc,v 1.2 2004/04/23 18:42:56 eich Exp $ -*/ - -#include -#include -#include "glimports.h" -#include "zlassert.h" -#include "sampleCompRight.h" - -#define max(a,b) ((a>b)? a:b) -#define min(a,b) ((a>b)? b:a) - - - -#ifdef NOT_TAKEOUT - -/*notice that we need leftChain because the - *corners could be on the leftChain. - */ -void sampleCompRight(Real* topVertex, Real* botVertex, - vertexArray* leftChain, - Int leftStartIndex, Int leftEndIndex, - vertexArray* rightChain, - Int rightStartIndex, Int rightEndIndex, - gridBoundaryChain* rightGridChain, - Int gridIndex1, Int gridIndex2, - Int up_rightCornerWhere, - Int up_rightCornerIndex, - Int down_rightCornerWhere, - Int down_rightCornerIndex, - primStream* pStream) -{ - /*find out whether there is a trim vertex which is - *inbetween the top and bot grid lines or not. - */ - Int midIndex1; - Int midIndex2; - Int gridMidIndex1, gridMidIndex2; - //midIndex1: array[i] <= v, array[i+1] > v - //midIndex2: array[i] >= v, array[i+1] < v - midIndex1 = rightChain->findIndexBelowGen(rightGridChain->get_v_value(gridIndex1), - rightStartIndex, - rightEndIndex); - midIndex2 = -1; //initilization - if(midIndex1 <= rightEndIndex && gridIndex1 < gridIndex2) - if(rightChain->getVertex(midIndex1)[1] >= rightGridChain->get_v_value(gridIndex2)) - { - //midIndex2 must exist: - midIndex2 = rightChain->findIndexAboveGen(rightGridChain->get_v_value(gridIndex2), - midIndex1, //midIndex1<=midIndex2 - rightEndIndex); - //find gridMidIndex1 so that either it=gridIndex1 when the gridline is - // at the same height as trim vertex midIndex1, or it is the last one - //which is strictly above midIndex1. - { - Real temp = rightChain->getVertex(midIndex1)[1]; - if(rightGridChain->get_v_value(gridIndex1) == temp) - gridMidIndex1 = gridIndex1; - else - { - gridMidIndex1 = gridIndex1; - while(rightGridChain->get_v_value(gridMidIndex1) > temp) - gridMidIndex1++; - gridMidIndex1--; - } - }//end of find gridMindIndex1 - //find gridMidIndex2 so that it is the (first one below or equal - //midIndex) last one above or equal midIndex2 - { - Real temp = rightChain->getVertex(midIndex2)[1]; - for(gridMidIndex2 = gridMidIndex1+1; gridMidIndex2 <= gridIndex2; gridMidIndex2++) - if(rightGridChain->get_v_value(gridMidIndex2) <= temp) - break; - - assert(gridMidIndex2 <= gridIndex2); - }//end of find gridMidIndex2 - } - - - - //to interprete the corner information - Real* cornerTop; - Real* cornerBot; - Int cornerRightStart; - Int cornerRightEnd; - Int cornerLeftUpEnd; - Int cornerLeftDownStart; - if(up_rightCornerWhere == 2) //right corner is on right chain - { - cornerTop = rightChain->getVertex(up_rightCornerIndex); - cornerRightStart = up_rightCornerIndex+1; - cornerLeftUpEnd = -1; //no left - } - else if(up_rightCornerWhere == 1) //right corner is on top - { - cornerTop = topVertex; - cornerRightStart = rightStartIndex; - cornerLeftUpEnd = -1; //no left - } - else //right corner is on left chain - { - cornerTop = topVertex; - cornerRightStart = rightStartIndex; - cornerLeftUpEnd = up_rightCornerIndex; - } - - if(down_rightCornerWhere == 2) //right corner is on right chan - { - cornerBot = rightChain->getVertex(down_rightCornerIndex); - cornerRightEnd = down_rightCornerIndex-1; - cornerLeftDownStart = leftEndIndex+1; //no left - } - else if (down_rightCornerWhere == 1) //right corner is at bot - { - cornerBot = botVertex; - cornerRightEnd = rightEndIndex; - cornerLeftDownStart = leftEndIndex+1; //no left - } - else //right corner is on the left chain - { - cornerBot = botVertex; - cornerRightEnd = rightEndIndex; - cornerLeftDownStart = down_rightCornerIndex; - } - - //sample - if(midIndex2 >= 0) //there is a trm point between grid lines - { - - sampleRightSingleTrimEdgeRegionGen(cornerTop, rightChain->getVertex(midIndex1), - rightChain, - cornerRightStart, - midIndex1-1, - rightGridChain, - gridIndex1, - gridMidIndex1, - leftChain, - leftStartIndex, - cornerLeftUpEnd, - 0, //no left down section, - -1, - pStream); - - sampleRightSingleTrimEdgeRegionGen(rightChain->getVertex(midIndex2), - cornerBot, - rightChain, - midIndex2+1, - cornerRightEnd, - rightGridChain, - gridMidIndex2, - gridIndex2, - leftChain, - 0, //no left up section - -1, - cornerLeftDownStart, - leftEndIndex, - pStream); - - sampleRightStripRecF(rightChain, - midIndex1, - midIndex2, - rightGridChain, - gridMidIndex1, - gridMidIndex2, - pStream); - - } - else - { - sampleRightSingleTrimEdgeRegionGen(cornerTop, cornerBot, - rightChain, - cornerRightStart, - cornerRightEnd, - rightGridChain, - gridIndex1, - gridIndex2, - leftChain, - leftStartIndex, - cornerLeftUpEnd, - cornerLeftDownStart, - leftEndIndex, - pStream); - } -} - -void sampleRightSingleTrimEdgeRegionGen(Real topVertex[2], Real botVertex[2], - vertexArray* rightChain, - Int rightStart, - Int rightEnd, - gridBoundaryChain* gridChain, - Int gridBeginIndex, - Int gridEndIndex, - vertexArray* leftChain, - Int leftUpBegin, - Int leftUpEnd, - Int leftDownBegin, - Int leftDownEnd, - primStream* pStream) -{ - Int i,k; - /*creat an array to store all the up and down secments of the left chain, - *and the right end grid points - * - *although vertex array is a dynamic array, but to gain efficiency, - *it is better to initiliza the exact array size - */ - vertexArray vArray(gridEndIndex-gridBeginIndex+1 + - max(0,leftUpEnd - leftUpBegin+1)+ - max(0,leftDownEnd - leftDownBegin+1)); - //append the vertices on the up section of the left chain - for(i=leftUpBegin; i<= leftUpEnd; i++) - vArray.appendVertex(leftChain->getVertex(i)); - - //append the vertices of the right extremal grid points, - //and at the same time, perform triangulation for the stair cases - vArray.appendVertex(gridChain->get_vertex(gridBeginIndex)); - - for(k=1, i=gridBeginIndex+1; i<= gridEndIndex; i++, k++) - { - vArray.appendVertex(gridChain->get_vertex(i)); - - //output the fan of the grid points of the (i)th and (i-1)th grid line. - gridChain->rightEndFan(i, pStream); - } - - //append all the vertices on the down section of the left chain - for(i=leftDownBegin; i<= leftDownEnd; i++) - vArray.appendVertex(leftChain->getVertex(i)); - monoTriangulationRecGen(topVertex, botVertex, - &vArray, 0, vArray.getNumElements()-1, - rightChain, rightStart, rightEnd, - pStream); -} - -void sampleRightSingleTrimEdgeRegion(Real upperVert[2], Real lowerVert[2], - gridBoundaryChain* gridChain, - Int beginIndex, - Int endIndex, - primStream* pStream) -{ - Int i,k; - vertexArray vArray(endIndex-beginIndex+1); - vArray.appendVertex(gridChain->get_vertex(beginIndex)); - for(k=1, i=beginIndex+1; i<= endIndex; i++, k++) - { - vArray.appendVertex(gridChain->get_vertex(i)); - //output the fan of the grid points of the (i)_th and i-1th gridLine - gridChain->rightEndFan(i, pStream); - } - monoTriangulation2(upperVert, lowerVert, &vArray, 0, endIndex-beginIndex, - 1, //increase chain (to the left) - pStream); -} - - -/*the gridlines from rightGridChainStartIndex to - *rightGridChainEndIndex are assumed to form a - *connected componenet - *the trm vertex of topRightIndex is assumed to be below - *or equal the first gridLine, and the trm vertex of - *botRightIndex is assumed to be above or equal the last gridline - **there could be multipe trm vertices equal to the last gridline, but - **only one could be equal to top gridline. shape: ____| (recall that - **for left chain recF, we allow shape: |---- - *if botRightIndex= topRightIndex, there is at least one triangles to - *output - */ -void sampleRightStripRecF(vertexArray* rightChain, - Int topRightIndex, - Int botRightIndex, - gridBoundaryChain* rightGridChain, - Int rightGridChainStartIndex, - Int rightGridChainEndIndex, - primStream* pStream - ) -{ - - //sstop conditionL: if topRightIndex > botRightIndex, then stop - if(topRightIndex > botRightIndex) - return; - - //if there is only one grid line, return - if(rightGridChainStartIndex >= rightGridChainEndIndex) - return; - - - assert(rightChain->getVertex(topRightIndex)[1] <= rightGridChain->get_v_value(rightGridChainStartIndex) && - rightChain->getVertex(botRightIndex)[1] >= rightGridChain->get_v_value(rightGridChainEndIndex)); - - //firstfind the first trim vertex which is strictly below the second top - //grid line: index1. - Real secondGridChainV = rightGridChain->get_v_value(rightGridChainStartIndex+1); - Int index1 = topRightIndex; - while(rightChain->getVertex(index1)[1] >= secondGridChainV){ - index1++; - if(index1 > botRightIndex) - break; - } - //now rightChain->getVertex(index1-1)[1] >= secondGridChainV and - //rightChain->getVertex(index1)[1] < secondGridChainV and - //we should include index1-1 to perform a gridStep - index1--; - - //now we have rightChain->getVertex(index1)[1] >= secondGridChainV, and - //rightChain->getVertex(index1+1)[1] < secondGridChainV - sampleRightOneGridStep(rightChain, topRightIndex, index1, rightGridChain, rightGridChainStartIndex, pStream); - - //if rightChain->getVertex(index1)[1] ==secondGridChainV then we can - //recurvesively to the rest - if(rightChain->getVertex(index1)[1] == secondGridChainV) - { - - - sampleRightStripRecF(rightChain, index1, botRightIndex, rightGridChain, rightGridChainStartIndex+1, rightGridChainEndIndex, pStream); - } - else if(index1 < botRightIndex) - { - //otherwise, we have rightChain->getVertex(index1)[1] > secondV - //let the next trim vertex be nextTrimVertex, (which should be strictly - //below the second grid line). Find the last grid line index2 which is STRICTLY ABOVE - //nextTrimVertex. - //sample one trm edge region. - Real *uppervert, *lowervert; - uppervert = rightChain->getVertex(index1); - lowervert = rightChain->getVertex(index1+1); //okay since index1get_v_value(index2) > lowervert[1]) - { - index2++; - if(index2 > rightGridChainEndIndex) - break; - } - index2--; - - sampleRightSingleTrimEdgeRegion(uppervert, lowervert, rightGridChain, rightGridChainStartIndex+1, index2, pStream); - - //recursion - sampleRightStripRecF(rightChain, index1+1, botRightIndex, rightGridChain, index2, rightGridChainEndIndex, pStream); - } -} - -//the degenerate case of sampleRightOneGridStep -void sampleRightOneGridStepNoMiddle(vertexArray* rightChain, - Int beginRightIndex, - Int endRightIndex, - gridBoundaryChain* rightGridChain, - Int rightGridChainStartIndex, - primStream* pStream) -{ - /*since there is no middle, there is at most one point which is on the - *second grid line, there could be multiple points on the first (top) - *grid line. - */ - rightGridChain->rightEndFan(rightGridChainStartIndex+1, pStream); - monoTriangulation2(rightGridChain->get_vertex(rightGridChainStartIndex), - rightGridChain->get_vertex(rightGridChainStartIndex+1), - rightChain, - beginRightIndex, - endRightIndex, - 0, //decrease chain - pStream); -} - -//sampling the right area in between two grid lines -//shape: _________| -void sampleRightOneGridStep(vertexArray* rightChain, - Int beginRightIndex, - Int endRightIndex, - gridBoundaryChain* rightGridChain, - Int rightGridChainStartIndex, - primStream* pStream) -{ - if(checkMiddle(rightChain, beginRightIndex, endRightIndex, - rightGridChain->get_v_value(rightGridChainStartIndex), - rightGridChain->get_v_value(rightGridChainStartIndex+1))<0) - { - sampleRightOneGridStepNoMiddle(rightChain, beginRightIndex, endRightIndex, rightGridChain, rightGridChainStartIndex, pStream); - return; - } - - //copy into a polygn - { - directedLine* poly = NULL; - sampledLine* sline; - directedLine* dline; - gridWrap* grid = rightGridChain->getGrid(); - float vert1[2]; - float vert2[2]; - Int i; - - Int innerInd = rightGridChain->getInnerIndex(rightGridChainStartIndex+1); - Int upperInd = rightGridChain->getUlineIndex(rightGridChainStartIndex); - Int lowerInd = rightGridChain->getUlineIndex(rightGridChainStartIndex+1); - Real upperV = rightGridChain->get_v_value(rightGridChainStartIndex); - Real lowerV = rightGridChain->get_v_value(rightGridChainStartIndex+1); - - //the upper gridline - vert1[1]=vert2[1]=upperV; - for(i=upperInd; - i>innerInd; - i--) - { - vert1[0]=grid->get_u_value(i); - vert2[0]=grid->get_u_value(i-1); - sline = new sampledLine(vert1, vert2); - dline = new directedLine(INCREASING, sline); - if(poly == NULL) - poly = dline; - else - poly->insert(dline); - } - - //the vertical grid line segment - vert1[0]=vert2[0] = grid->get_u_value(innerInd); - vert1[1]=upperV; - vert2[1]=lowerV; - sline=new sampledLine(vert1, vert2); - dline=new directedLine(INCREASING, sline); - if(poly == NULL) - poly = dline; - else - poly->insert(dline); - - //the lower grid line - vert1[1]=vert2[1]=lowerV; - for(i=innerInd; iget_u_value(i); - vert2[0] = grid->get_u_value(i+1); - sline = new sampledLine(vert1, vert2); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - } - - //the edge connecting lower grid to right chain - vert1[0]=grid->get_u_value(lowerInd); - sline = new sampledLine(vert1, rightChain->getVertex(endRightIndex)); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - - - //the right Chain - for(i=endRightIndex; i>beginRightIndex; i--) - { - sline = new sampledLine(rightChain->getVertex(i), rightChain->getVertex(i-1)); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - } - - //the edge connecting right chain with upper grid - vert2[1]=upperV; - vert2[0]=grid->get_u_value(upperInd); - sline = new sampledLine(rightChain->getVertex(beginRightIndex), vert2); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - monoTriangulationOpt(poly, pStream); - //clean up - poly->deleteSinglePolygonWithSline(); - - return; - } - -#if 0 - //this following code cannot be reached, but leave it for debuggig purpose. - Int i; - //find the maximal U-monotone chain of beginRightIndex, beginRightIndex+1,... - i=beginRightIndex; - Real prevU = rightChain->getVertex(i)[0]; - for(i=beginRightIndex+1; i<= endRightIndex; i++){ - Real thisU = rightChain->getVertex(i)[0]; - if(thisU < prevU) - prevU = thisU; - else - break; - } - //from beginRightIndex to i-1 is strictly U-monotne - //if(i-1==beginRightIndex and the vertex of rightchain is on the first - //gridline, then we should use 2 vertices on the right chain. Of we only - //use one (begin), we would output degenrate triangles. - if(i-1 == beginRightIndex && rightChain->getVertex(beginRightIndex)[1] == rightGridChain->get_v_value(rightGridChainStartIndex)) - i++; - - Int j = endRightIndex -1; - if(rightGridChain->getInnerIndex(rightGridChainStartIndex+1) < rightGridChain->getUlineIndex(rightGridChainStartIndex+1)) - { - j = rightChain->findDecreaseChainFromEnd(i-1/*beginRightIndex*/, endRightIndex); - Int temp = endRightIndex; - //now from j+1 to end is strictly U-monotone. - //if j+1 is on the last grid line, then we wat to skip to the vertex - //whcih is strictly above the second grid line. This vertex must exist - //since there is a middle vertex - if(j+1 == endRightIndex) - { - while(rightChain->getVertex(j+1)[1] == rightGridChain->get_v_value(rightGridChainStartIndex+1)) - j--; - - monoTriangulation2(rightChain->getVertex(j+1), - rightGridChain->get_vertex(rightGridChainStartIndex+1), - rightChain, - j+2, - endRightIndex, - 0, //a decrease chain - pStream); - - temp = j+1; - } - - stripOfFanRight(rightChain, temp, j+1, rightGridChain->getGrid(), - rightGridChain->getVlineIndex(rightGridChainStartIndex+1), - rightGridChain->getInnerIndex(rightGridChainStartIndex+1), - rightGridChain->getUlineIndex(rightGridChainStartIndex+1), - pStream, - 0 //the grid line is below the trim line - ); - - } - - - stripOfFanRight(rightChain, i-1, beginRightIndex, rightGridChain->getGrid(), - rightGridChain->getVlineIndex(rightGridChainStartIndex), - rightGridChain->getInnerIndex(rightGridChainStartIndex+1), - rightGridChain->getUlineIndex(rightGridChainStartIndex), - pStream, - 1 //the grid line is above the trm lines - ); - - //monotone triangulate the remaining rightchain together with the - //two vertices on the two grid v-lines - Real vert[2][2]; - vert[0][0] = vert[1][0] = rightGridChain->getInner_u_value(rightGridChainStartIndex+1); - vert[0][1] = rightGridChain->get_v_value(rightGridChainStartIndex); - vert[1][1] = rightGridChain->get_v_value(rightGridChainStartIndex+1); - - monoTriangulation2(&vert[0][0], - &vert[1][0], - rightChain, - i-1, - j+1, - 0, ///a decreae chain - pStream); -#endif -} - -#endif - -void stripOfFanRight(vertexArray* rightChain, - Int largeIndex, - Int smallIndex, - gridWrap* grid, - Int vlineIndex, - Int ulineSmallIndex, - Int ulineLargeIndex, - primStream* pStream, - Int gridLineUp /*1 if the grid line is above the trim lines*/ - ) -{ - assert(largeIndex >= smallIndex); - - Real grid_v_value; - grid_v_value = grid->get_v_value(vlineIndex); - - Real2* trimVerts=(Real2*) malloc(sizeof(Real2)* (largeIndex-smallIndex+1)); - assert(trimVerts); - - - Real2* gridVerts=(Real2*) malloc(sizeof(Real2)* (ulineLargeIndex-ulineSmallIndex+1)); - assert(gridVerts); - - Int k,i; - if(! gridLineUp) /*trim line is above grid line, so trim vertices are going right when index increases*/ - for(k=0, i=smallIndex; i<=largeIndex; i++, k++) - { - trimVerts[k][0] = rightChain->getVertex(i)[0]; - trimVerts[k][1] = rightChain->getVertex(i)[1]; - } - else - for(k=0, i=largeIndex; i>=smallIndex; i--, k++) - { - trimVerts[k][0] = rightChain->getVertex(i)[0]; - trimVerts[k][1] = rightChain->getVertex(i)[1]; - } - - for(k=0, i=ulineSmallIndex; i<= ulineLargeIndex; i++, k++) - { - gridVerts[k][0] = grid->get_u_value(i); - gridVerts[k][1] = grid_v_value; - } - - if(gridLineUp) - triangulateXYMono( - ulineLargeIndex-ulineSmallIndex+1, gridVerts, - largeIndex-smallIndex+1, trimVerts, - pStream); - else - triangulateXYMono(largeIndex-smallIndex+1, trimVerts, - ulineLargeIndex-ulineSmallIndex+1, gridVerts, - pStream); - free(trimVerts); - free(gridVerts); -} - - - - - - - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompRight.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompRight.h deleted file mode 100644 index 75b334f5c..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompRight.h +++ /dev/null @@ -1,124 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompRight.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _SAMPLECOMPRIGHT_H -#define _SAMPLECOMPRIGHT_H - -#define NOT_TAKEOUT - -#include "sampleMonoPoly.h" -void stripOfFanRight(vertexArray* rightChain, - Int largeIndex, - Int smallIndex, - gridWrap* grid, - Int vlineIndex, - Int ulineSmallIndex, - Int ulineLargeIndex, - primStream* pStream, - Int gridLineUp /*1 if grid line is above the trim lines */ - ); - -#ifdef NOT_TAKEOUT -void sampleRightStripRecF(vertexArray* rightChain, - Int topRightIndex, - Int botRightIndex, - gridBoundaryChain* rightGridChain, - Int rightGridChainStartIndex, - Int rightGridChainEndIndex, - primStream* pStream - ); -//the degenerate case of sampleRightOneGridStep -void sampleRightOneGridStepNoMiddle(vertexArray* rightChain, - Int beginRightIndex, - Int endRightIndex, - gridBoundaryChain* rightGridChain, - Int rightGridChainStartIndex, - primStream* pStream); -//sampling the right area in between two grid lines -//shape: _________| -void sampleRightOneGridStep(vertexArray* rightChain, - Int beginRightIndex, - Int endRightIndex, - gridBoundaryChain* rightGridChain, - Int rightGridChainStartIndex, - primStream* pStream); -void sampleRightSingleTrimEdgeRegion(Real upperVert[2], Real lowerVert[2], - gridBoundaryChain* gridChain, - Int beginIndex, - Int endIndex, - primStream* pStream); -//the degenerate case of sampleRightOneGridStep -void sampleRightOneGridStepNoMiddle(vertexArray* rightChain, - Int beginRightIndex, - Int endRightIndex, - gridBoundaryChain* rightGridChain, - Int rightGridChainStartIndex, - primStream* pStream); - -void sampleCompRight(Real* topVertex, Real* botVertex, - vertexArray* leftChain, - Int leftStartIndex, Int leftEndIndex, - vertexArray* rightChain, - Int rightStartIndex, Int rightEndIndex, - gridBoundaryChain* rightGridChain, - Int gridIndex1, Int gridIndex2, - Int up_leftCornerWhere, - Int up_leftCornerIndex, - Int down_leftCornerWhere, - Int down_leftCornerIndex, - primStream* pStream); - -void sampleRightSingleTrimEdgeRegionGen(Real topVert[2], Real botVert[2], - vertexArray* rightChain, - Int rightStart, - Int rightEnd, - gridBoundaryChain* gridChain, - Int gridBegindex, - Int gridEndIndex, - vertexArray* leftChain, - Int leftUpBegin, - Int leftUpEnd, - Int leftDownBegin, - Int leftDownEnd, - primStream* pStream); -#endif - -#endif - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompTop.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompTop.cc deleted file mode 100644 index 4ecea7da7..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompTop.cc +++ /dev/null @@ -1,1024 +0,0 @@ -/* $XFree86: xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompTop.cc,v 1.2tsi Exp $ */ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/04/23 18:42:56 $ $Revision: 1.2 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompTop.cc,v 1.2 2004/04/23 18:42:56 eich Exp $ -*/ - -#include -#include -#include -#include "zlassert.h" -#include "sampleCompTop.h" -#include "sampleCompRight.h" - -#define max(a,b) ((a>b)? a:b) - -//return : index_small, and index_large, -//from [small, large] is strictly U-monotne, -//from [large+1, end] is = u -//if eveybody is = leftStart; i--) - { - if(leftChain->getVertex(i)[0] >= u) - break; - } - ret_index_large = i; - if(ret_index_large >= leftStart) - { - for(i=ret_index_large; i>leftStart; i--) - { - if(leftChain->getVertex(i-1)[0] <= leftChain->getVertex(i)[0]) - break; - } - ret_index_small = i; - } -} - -void findTopRightSegment(vertexArray* rightChain, - Int rightStart, - Int rightEnd, - Real u, - Int& ret_index_small, - Int& ret_index_large) -{ - Int i; - assert(rightStart<=rightEnd); - for(i=rightEnd; i>=rightStart; i--) - { - if(rightChain->getVertex(i)[0] <= u) - break; - } - ret_index_large = i; - if(ret_index_large >= rightStart) - { - for(i=ret_index_large; i>rightStart;i--) - { - if(rightChain->getVertex(i-1)[0] >= rightChain->getVertex(i)[0]) - break; - } - ret_index_small = i; - } -} - - -void sampleTopRightWithGridLinePost(Real* topVertex, - vertexArray* rightChain, - Int rightStart, - Int segIndexSmall, - Int segIndexLarge, - Int rightEnd, - gridWrap* grid, - Int gridV, - Int leftU, - Int rightU, - primStream* pStream) -{ - //the possible section which is to the right of rightU - if(segIndexLarge < rightEnd) - { - Real *tempTop; - if(segIndexLarge >= rightStart) - tempTop = rightChain->getVertex(segIndexLarge); - else - tempTop = topVertex; - Real tempBot[2]; - tempBot[0] = grid->get_u_value(rightU); - tempBot[1] = grid->get_v_value(gridV); -monoTriangulationRecGenOpt(tempTop, tempBot, - NULL, 1,0, - rightChain, segIndexLarge+1, rightEnd, - pStream); -/* - monoTriangulation2(tempTop, tempBot, - rightChain, - segIndexLarge+1, - rightEnd, - 0, //a decrease chian - pStream); -*/ - - } - - //the possible section which is strictly Umonotone - if(segIndexLarge >= rightStart) - { - stripOfFanRight(rightChain, segIndexLarge, segIndexSmall, grid, gridV, leftU, rightU, pStream, 0); - Real tempBot[2]; - tempBot[0] = grid->get_u_value(leftU); - tempBot[1] = grid->get_v_value(gridV); - monoTriangulation2(topVertex, tempBot, rightChain, rightStart, segIndexSmall, 0, pStream); - } - else //the topVertex forms a fan with the grid points - grid->outputFanWithPoint(gridV, leftU, rightU, topVertex, pStream); -} - -void sampleTopRightWithGridLine(Real* topVertex, - vertexArray* rightChain, - Int rightStart, - Int rightEnd, - gridWrap* grid, - Int gridV, - Int leftU, - Int rightU, - primStream* pStream - ) -{ - //if right chian is empty, then there is only one topVertex with one grid line - if(rightEnd < rightStart){ - grid->outputFanWithPoint(gridV, leftU, rightU, topVertex, pStream); - return; - } - - Int segIndexSmall, segIndexLarge; - findTopRightSegment(rightChain, - rightStart, - rightEnd, - grid->get_u_value(rightU), - segIndexSmall, - segIndexLarge - ); - sampleTopRightWithGridLinePost(topVertex, rightChain, - rightStart, - segIndexSmall, - segIndexLarge, - rightEnd, - grid, - gridV, - leftU, - rightU, - pStream); -} - - -void sampleTopLeftWithGridLinePost(Real* topVertex, - vertexArray* leftChain, - Int leftStart, - Int segIndexSmall, - Int segIndexLarge, - Int leftEnd, - gridWrap* grid, - Int gridV, - Int leftU, - Int rightU, - primStream* pStream) -{ - //the possible section which is to the left of leftU - - if(segIndexLarge < leftEnd) - { - Real *tempTop; - if(segIndexLarge >= leftStart) - tempTop = leftChain->getVertex(segIndexLarge); - else - tempTop = topVertex; - Real tempBot[2]; - tempBot[0] = grid->get_u_value(leftU); - tempBot[1] = grid->get_v_value(gridV); - - monoTriangulation2(tempTop, tempBot, - leftChain, - segIndexLarge+1, - leftEnd, - 1, //a increase chian - pStream); - } - - //the possible section which is strictly Umonotone - if(segIndexLarge >= leftStart) - { - //if there are grid points which are to the right of topV, - //then we should use topVertex to form a fan with these points to - //optimize the triangualtion - int do_optimize=1; - if(topVertex[0] >= grid->get_u_value(rightU)) - do_optimize = 0; - else - { - //we also have to make sure that topVertex are the right most vertex - //on the chain. - int i; - for(i=leftStart; i<=segIndexSmall; i++) - if(leftChain->getVertex(i)[0] >= topVertex[0]) - { - do_optimize = 0; - break; - } - } - - if(do_optimize) - { - //find midU so that grid->get_u_value(midU) >= topVertex[0] - //and grid->get_u_value(midU-1) < topVertex[0] - int midU=rightU; - while(grid->get_u_value(midU) >= topVertex[0]) - { - midU--; - if(midU < leftU) - break; - } - midU++; - - grid->outputFanWithPoint(gridV, midU, rightU, topVertex, pStream); - stripOfFanLeft(leftChain, segIndexLarge, segIndexSmall, grid, gridV, leftU, midU, pStream, 0); - Real tempBot[2]; - tempBot[0] = grid->get_u_value(midU); - tempBot[1] = grid->get_v_value(gridV); - monoTriangulation2(topVertex, tempBot, leftChain, leftStart, segIndexSmall, 1, pStream); - } - else //not optimize - { - - stripOfFanLeft(leftChain, segIndexLarge, segIndexSmall, grid, gridV, leftU, rightU, pStream, 0); - Real tempBot[2]; - tempBot[0] = grid->get_u_value(rightU); - tempBot[1] = grid->get_v_value(gridV); - monoTriangulation2(topVertex, tempBot, leftChain, leftStart, segIndexSmall, 1, pStream); - } - } - else //the topVertex forms a fan with the grid points - grid->outputFanWithPoint(gridV, leftU, rightU, topVertex, pStream); -} - - -void sampleTopLeftWithGridLine(Real* topVertex, - vertexArray* leftChain, - Int leftStart, - Int leftEnd, - gridWrap* grid, - Int gridV, - Int leftU, - Int rightU, - primStream* pStream - ) -{ - Int segIndexSmall, segIndexLarge; - //if left chain is empty, then there is only one top vertex with one grid - // line - if(leftEnd < leftStart) { - grid->outputFanWithPoint(gridV, leftU, rightU, topVertex, pStream); - return; - } - findTopLeftSegment(leftChain, - leftStart, - leftEnd, - grid->get_u_value(leftU), - segIndexSmall, - segIndexLarge - ); - sampleTopLeftWithGridLinePost(topVertex, - leftChain, - leftStart, - segIndexSmall, - segIndexLarge, - leftEnd, - grid, - gridV, - leftU, - rightU, - pStream); -} - -//return 1 if saprator exits, 0 otherwise -Int findTopSeparator(vertexArray* leftChain, - Int leftStartIndex, - Int leftEndIndex, - vertexArray* rightChain, - Int rightStartIndex, - Int rightEndIndex, - Int& ret_sep_left, - Int& ret_sep_right) -{ - Int oldLeftI, oldRightI, newLeftI, newRightI; - Int i,j,k; - Real leftMax /*= leftChain->getVertex(leftEndIndex)[0]*/; - Real rightMin /*= rightChain->getVertex(rightEndIndex)[0]*/; - if(leftChain->getVertex(leftEndIndex)[1] > rightChain->getVertex(rightEndIndex)[1]) //left higher - { - oldLeftI = leftEndIndex+1; - oldRightI = rightEndIndex; - leftMax = leftChain->getVertex(leftEndIndex)[0] - 1.0; //initilza to left of leftU - rightMin = rightChain->getVertex(rightEndIndex)[0]; - } - else - { - oldLeftI = leftEndIndex; - oldRightI = rightEndIndex+1; - leftMax = leftChain->getVertex(leftEndIndex)[0]; - rightMin = rightChain->getVertex(rightEndIndex)[0] + 1.0; - } - - //i: the current working leftChain index, - //j: the current working rightChain index, - //if left(i) is higher than right(j), then the two chains beloew right(j) are separated. - //else the two chains below left(i) are separeated. - i=leftEndIndex; - j=rightEndIndex; - while(1) - { - newLeftI = oldLeftI; - newRightI = oldRightI; - - if(i= rightStartIndex; k--) - { - if(rightChain->getVertex(k)[0] > leftMax) //no conflict - { - //update oldRightI if necessary - if(rightChain->getVertex(k)[0] < rightMin) - { - rightMin = rightChain->getVertex(k)[0]; - oldRightI = k; - } - } - else //there is a conflict - break; //the for-loop. below right(k-1) is seperated: oldLeftI, oldRightI. - } - break; //the while loop - } - else if(j= leftStartIndex; k--) - { - if(leftChain->getVertex(k)[0] < rightMin) //no conflict - { - //update oldLeftI if necessary - if(leftChain->getVertex(k)[0] > leftMax) - { - leftMax = leftChain->getVertex(k)[0]; - oldLeftI = k; - } - } - else //there is a conflict - break; //the for loop - } - break; //the while loop - } - else if(leftChain->getVertex(i)[1] > rightChain->getVertex(j)[1]) //left hgiher - { - if(leftChain->getVertex(i)[0] > leftMax) //update leftMax and newLeftI. - { - leftMax = leftChain->getVertex(i)[0]; - newLeftI = i; - } - for(k=j-1; k>= rightStartIndex; k--) //update rightMin and newRightI. - { - if(rightChain->getVertex(k)[1] > leftChain->getVertex(i)[1]) - break; - if(rightChain->getVertex(k)[0] < rightMin) - { - rightMin = rightChain->getVertex(k)[0]; - newRightI = k; - } - } - j = k; //next working j, since j will be higher than i in next loop - if(leftMax >= rightMin) //there is a conflict - break; - else //still no conflict - { - oldLeftI = newLeftI; - oldRightI = newRightI; - } - } - else //right higher - { - if(rightChain->getVertex(j)[0] < rightMin) - { - rightMin = rightChain->getVertex(j)[0]; - newRightI = j; - } - for(k=i-1; k>= leftStartIndex; k--) - { - if(leftChain->getVertex(k)[1] > rightChain->getVertex(j)[1]) - break; - if(leftChain->getVertex(k)[0] > leftMax) - { - leftMax = leftChain->getVertex(k)[0]; - newLeftI = k; - } - } - i = k; //next working i, since i will be higher than j next loop - - if(leftMax >= rightMin) //there is a conflict - break; - else //still no conflict - { - oldLeftI = newLeftI; - oldRightI = newRightI; - } - } - }//end of while loop - //now oldLeftI and oldRightI are the desired separeator index, notice that there are not necessarily valid - if(oldLeftI > leftEndIndex || oldRightI > rightEndIndex) - return 0; - else - { - ret_sep_left = oldLeftI; - ret_sep_right = oldRightI; - return 1; - } -} - -void sampleCompTop(Real* topVertex, - vertexArray* leftChain, - Int leftStartIndex, - vertexArray* rightChain, - Int rightStartIndex, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridIndex1, - Int up_leftCornerWhere, - Int up_leftCornerIndex, - Int up_rightCornerWhere, - Int up_rightCornerIndex, - primStream* pStream) -{ - if(up_leftCornerWhere == 1 && up_rightCornerWhere == 1) //the top is topVertex with possible grid points - { - leftGridChain->getGrid()->outputFanWithPoint(leftGridChain->getVlineIndex(gridIndex1), - leftGridChain->getUlineIndex(gridIndex1), - rightGridChain->getUlineIndex(gridIndex1), - topVertex, - pStream); - return; - } - - else if(up_leftCornerWhere != 0) - { - Real* tempTop; - Int tempRightStart; - if(up_leftCornerWhere == 1){ - tempRightStart = rightStartIndex; - tempTop = topVertex; - } - else - { - tempRightStart = up_leftCornerIndex+1; - tempTop = rightChain->getVertex(up_leftCornerIndex); - } - sampleTopRightWithGridLine(tempTop, rightChain, tempRightStart, up_rightCornerIndex, - rightGridChain->getGrid(), - leftGridChain->getVlineIndex(gridIndex1), - leftGridChain->getUlineIndex(gridIndex1), - rightGridChain->getUlineIndex(gridIndex1), - pStream); - } - else if(up_rightCornerWhere != 2) - { -/* - Real* tempTop; - Int tempLeftStart; - if(up_rightCornerWhere == 1) - { - tempLeftStart = leftStartIndex; - tempTop = topVertex; - } - else - { - tempLeftStart = up_rightCornerIndex+1; - tempTop = leftChain->getVertex(up_rightCornerIndex); - } - sampleTopLeftWithGridLine(tempTop, leftChain, tempLeftStart, up_leftCornerIndex, - leftGridChain->getGrid(), - leftGridChain->getVlineIndex(gridIndex1), - leftGridChain->getUlineIndex(gridIndex1), - rightGridChain->getUlineIndex(gridIndex1), - pStream); -*/ - sampleCompTopSimple(topVertex, - leftChain, - leftStartIndex, - rightChain, - rightStartIndex, - leftGridChain, - rightGridChain, - gridIndex1, - up_leftCornerWhere, - up_leftCornerIndex, - up_rightCornerWhere, - up_rightCornerIndex, - pStream); - } - else //up_leftCornerWhere == 0, up_rightCornerWhere == 2. - { - sampleCompTopSimple(topVertex, - leftChain, - leftStartIndex, - rightChain, - rightStartIndex, - leftGridChain, - rightGridChain, - gridIndex1, - up_leftCornerWhere, - up_leftCornerIndex, - up_rightCornerWhere, - up_rightCornerIndex, - pStream); - return; -#ifdef NOT_REACHABLE //code is not reachable, for test purpose only - //the following code is trying to do some optimization, but not quite working, also see sampleCompBot.C: - Int sep_left, sep_right; - if(findTopSeparator(leftChain, - leftStartIndex, - up_leftCornerIndex, - rightChain, - rightStartIndex, - up_rightCornerIndex, - sep_left, - sep_right) - ) //separator exists - { - - if( leftChain->getVertex(sep_left)[0] >= leftGridChain->get_u_value(gridIndex1) && - rightChain->getVertex(sep_right)[0] <= rightGridChain->get_u_value(gridIndex1)) - { - Int gridSep; - Int segLeftSmall, segLeftLarge, segRightSmall, segRightLarge; - Int valid=1; //whether the gridStep is valid or not. - findTopLeftSegment(leftChain, - sep_left, - up_leftCornerIndex, - leftGridChain->get_u_value(gridIndex1), - segLeftSmall, - segLeftLarge); - findTopRightSegment(rightChain, - sep_right, - up_rightCornerIndex, - rightGridChain->get_u_value(gridIndex1), - segRightSmall, - segRightLarge); - if(leftChain->getVertex(segLeftSmall)[1] >= rightChain->getVertex(segRightSmall)[1]) - { - gridSep = rightGridChain->getUlineIndex(gridIndex1); - while(leftGridChain->getGrid()->get_u_value(gridSep) > leftChain->getVertex(segLeftSmall)[0]) - gridSep--; - if(segLeftSmallgetGrid()->get_u_value(gridSep) < leftChain->getVertex(segLeftSmall+1)[0]) - { - valid = 0; - } - } - else - { - gridSep = leftGridChain->getUlineIndex(gridIndex1); - while(leftGridChain->getGrid()->get_u_value(gridSep) < rightChain->getVertex(segRightSmall)[0]) - gridSep++; - if(segRightSmallgetGrid()->get_u_value(gridSep) > rightChain->getVertex(segRightSmall+1)[0]) - { - valid = 0; - } - } - - if(! valid) - { - sampleCompTopSimple(topVertex, - leftChain, - leftStartIndex, - rightChain, - rightStartIndex, - leftGridChain, - rightGridChain, - gridIndex1, - up_leftCornerWhere, - up_leftCornerIndex, - up_rightCornerWhere, - up_rightCornerIndex, - pStream); - } - else - { - sampleTopLeftWithGridLinePost(leftChain->getVertex(segLeftSmall), - leftChain, - segLeftSmall+1, - segLeftSmall+1, - segLeftLarge, - up_leftCornerIndex, - leftGridChain->getGrid(), - leftGridChain->getVlineIndex(gridIndex1), - leftGridChain->getUlineIndex(gridIndex1), - gridSep, - pStream); - sampleTopRightWithGridLinePost(rightChain->getVertex(segRightSmall), - rightChain, - segRightSmall+1, - segRightSmall+1, - segRightLarge, - up_rightCornerIndex, - leftGridChain->getGrid(), - leftGridChain->getVlineIndex(gridIndex1), - gridSep, - rightGridChain->getUlineIndex(gridIndex1), - pStream); - Real tempBot[2]; - tempBot[0] = leftGridChain->getGrid()->get_u_value(gridSep); - tempBot[1] = leftGridChain->get_v_value(gridIndex1); - monoTriangulationRecGen(topVertex, tempBot, - leftChain, leftStartIndex, segLeftSmall, - rightChain, rightStartIndex, segRightSmall, - pStream); - } - }//end if both sides have vetices inside the gridboundary points - else if(leftChain->getVertex(sep_left)[0] >= leftGridChain->get_u_value(gridIndex1)) //left is in, right is nout - { - - Int segLeftSmall, segLeftLarge; - findTopLeftSegment(leftChain, - sep_left, - up_leftCornerIndex, - leftGridChain->get_u_value(gridIndex1), - segLeftSmall, - segLeftLarge); - assert(segLeftLarge >= sep_left); - monoTriangulation2(leftChain->getVertex(segLeftLarge), - leftGridChain->get_vertex(gridIndex1), - leftChain, - segLeftLarge+1, - up_leftCornerIndex, - 1, //a increase chain, - pStream); - - stripOfFanLeft(leftChain, segLeftLarge, segLeftSmall, - leftGridChain->getGrid(), - leftGridChain->getVlineIndex(gridIndex1), - leftGridChain->getUlineIndex(gridIndex1), - rightGridChain->getUlineIndex(gridIndex1), - pStream, 0); - - - monoTriangulationRecGen(topVertex, rightGridChain->get_vertex(gridIndex1), - leftChain, leftStartIndex, segLeftSmall, - rightChain, rightStartIndex, up_rightCornerIndex, - pStream); - }//end left in right out - else if(rightChain->getVertex(sep_right)[0] <= rightGridChain->get_u_value(gridIndex1)) - { - Int segRightSmall, segRightLarge; - findTopRightSegment(rightChain, - sep_right, - up_rightCornerIndex, - rightGridChain->get_u_value(gridIndex1), - segRightSmall, - segRightLarge); - assert(segRightLarge>=sep_right); - monoTriangulation2(rightChain->getVertex(segRightLarge), - rightGridChain->get_vertex(gridIndex1), - rightChain, - segRightLarge+1, - up_rightCornerIndex, - 0, //a decrease chain - pStream); - stripOfFanRight(rightChain, segRightLarge, segRightSmall, - rightGridChain->getGrid(), - rightGridChain->getVlineIndex(gridIndex1), - leftGridChain->getUlineIndex(gridIndex1), - rightGridChain->getUlineIndex(gridIndex1), - pStream, 0); - - - monoTriangulationRecGen(topVertex, leftGridChain->get_vertex(gridIndex1), - leftChain, leftStartIndex, up_leftCornerIndex, - rightChain, rightStartIndex,segRightSmall, - pStream); - - }//end left out rigth in - else //left out , right out - { - - sampleCompTopSimple(topVertex, - leftChain, - leftStartIndex, - rightChain, - rightStartIndex, - leftGridChain, - rightGridChain, - gridIndex1, - up_leftCornerWhere, - up_leftCornerIndex, - up_rightCornerWhere, - up_rightCornerIndex, - pStream); - }//end leftout, right out - }//end if separator exixts. - else //no separator - { - - sampleCompTopSimple(topVertex, - leftChain, - leftStartIndex, - rightChain, - rightStartIndex, - leftGridChain, - rightGridChain, - gridIndex1, - up_leftCornerWhere, - up_leftCornerIndex, - up_rightCornerWhere, - up_rightCornerIndex, - pStream); - } -#endif - }//end if 0,2 -}//end if the function - -static void sampleCompTopSimpleOpt(gridWrap* grid, - Int gridV, - Real* topVertex, Real* botVertex, - vertexArray* inc_chain, Int inc_current, Int inc_end, - vertexArray* dec_chain, Int dec_current, Int dec_end, - primStream* pStream) -{ - if(gridV <= 0 || dec_endget_v_value(gridV+1) >= topVertex[1]) - { - monoTriangulationRecGenOpt(topVertex, botVertex, - inc_chain, inc_current, inc_end, - dec_chain, dec_current, dec_end, - pStream); - return; - } - Int i,j,k; - Real currentV = grid->get_v_value(gridV+1); - if(inc_chain->getVertex(inc_end)[1] <= currentV && - dec_chain->getVertex(dec_end)[1] < currentV) - { - //find i bottom up so that inc_chain[i]<= curentV and inc_chain[i-1] > currentV, - //find j botom up so that dec_chain[j] < currentV and dec_chain[j-1] >= currentV - for(i=inc_end; i >= inc_current; i--) - { - if(inc_chain->getVertex(i)[1] > currentV) - break; - } - i++; - for(j=dec_end; j >= dec_current; j--) - { - if(dec_chain->getVertex(j)[1] >= currentV) - break; - } - j++; - if(inc_chain->getVertex(i)[1] <= dec_chain->getVertex(j)[1]) - { - //find the k so that dec_chain[k][1] < inc_chain[i][1] - for(k=j; k<=dec_end; k++) - { - if(dec_chain->getVertex(k)[1] < inc_chain->getVertex(i)[1]) - break; - } - //we know that dec_chain[j][1] >= inc_chian[i][1] - //we know that dec_chain[k-1][1]>=inc_chain[i][1] - //we know that dec_chian[k][1] < inc_chain[i][1] - //find l in [j, k-1] so that dec_chain[l][0] 0 is closest to - // inc_chain[i] - int l; - int tempI = j; - Real tempMin = fabs(inc_chain->getVertex(i)[0] - dec_chain->getVertex(j)[0]); - for(l=j+1; l<= k-1; l++) - { - if(fabs(inc_chain->getVertex(i)[0] - dec_chain->getVertex(l)[0]) - <= tempMin) - { - tempMin = fabs(inc_chain->getVertex(i)[0] - dec_chain->getVertex(l)[0]); - tempI = l; - } - } - //inc_chain[i] and dec_chain[tempI] are connected. - monoTriangulationRecGenOpt(dec_chain->getVertex(tempI), - botVertex, - inc_chain, i, inc_end, - dec_chain, tempI + 1, dec_end, - pStream); - //recursively do the rest - sampleCompTopSimpleOpt(grid, - gridV+1, - topVertex, inc_chain->getVertex(i), - inc_chain, inc_current, i-1, - dec_chain, dec_current, tempI, - pStream); - } - else - { - //find the k so that inc_chain[k][1] <= dec_chain[j][1] - for(k=i; k<=inc_end; k++) - { - if(inc_chain->getVertex(k)[1] <= dec_chain->getVertex(j)[1]) - break; - } - //we know that inc_chain[i] > dec_chain[j] - //we know that inc_chain[k-1][1] > dec_chain[j][1] - //we know that inc_chain[k][1] <= dec_chain[j][1] - //so we find l between [i,k-1] so that - //inc_chain[l][0] is the closet to dec_chain[j][0] - int tempI = i; - int l; - Real tempMin = fabs(inc_chain->getVertex(i)[0] - dec_chain->getVertex(j)[0]); - for(l=i+1; l<=k-1; l++) - { - if(fabs(inc_chain->getVertex(l)[0] - dec_chain->getVertex(j)[0]) <= tempMin) - { - tempMin = fabs(inc_chain->getVertex(l)[0] - dec_chain->getVertex(j)[0]); - tempI = l; - } - } - - //inc_chain[tempI] and dec_chain[j] are connected - - monoTriangulationRecGenOpt(inc_chain->getVertex(tempI), - botVertex, - inc_chain, tempI+1, inc_end, - dec_chain, j, dec_end, - pStream); - - //recurvesily do the rest - sampleCompTopSimpleOpt(grid, gridV+1, - topVertex, dec_chain->getVertex(j), - inc_chain, inc_current, tempI, - dec_chain, dec_current, j-1, - pStream); - } - } - else //go to the next higher gridV - { - sampleCompTopSimpleOpt(grid, - gridV+1, - topVertex, botVertex, - inc_chain, inc_current, inc_end, - dec_chain, dec_current, dec_end, - pStream); - } -} - -void sampleCompTopSimple(Real* topVertex, - vertexArray* leftChain, - Int leftStartIndex, - vertexArray* rightChain, - Int rightStartIndex, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridIndex1, - Int up_leftCornerWhere, - Int up_leftCornerIndex, - Int up_rightCornerWhere, - Int up_rightCornerIndex, - primStream* pStream) -{ - //the plan is to use monotriangulation algortihm. - Int i,k; - Real* ActualTop; - Real* ActualBot; - Int ActualLeftStart, ActualLeftEnd; - Int ActualRightStart, ActualRightEnd; - - //creat an array to store the points on the grid line - gridWrap* grid = leftGridChain->getGrid(); - Int gridV = leftGridChain->getVlineIndex(gridIndex1); - Int gridLeftU = leftGridChain->getUlineIndex(gridIndex1); - Int gridRightU = rightGridChain->getUlineIndex(gridIndex1); - - Real2* gridPoints = (Real2*) malloc(sizeof(Real2) * (gridRightU - gridLeftU +1)); - assert(gridPoints); - - for(k=0, i=gridRightU; i>= gridLeftU; i--, k++) - { - gridPoints[k][0] = grid->get_u_value(i); - gridPoints[k][1] = grid->get_v_value(gridV); - } - - if(up_leftCornerWhere != 2) - ActualRightStart = rightStartIndex; - else - ActualRightStart = up_leftCornerIndex+1; //up_leftCornerIndex will be the ActualTop - - if(up_rightCornerWhere != 2) //right corner is not on right chain - ActualRightEnd = rightStartIndex-1; //meaning that there is no actual rigth section - else - ActualRightEnd = up_rightCornerIndex; - - vertexArray ActualRightChain(max(0, ActualRightEnd-ActualRightStart+1) + gridRightU-gridLeftU+1); - - for(i=ActualRightStart; i<= ActualRightEnd; i++) - ActualRightChain.appendVertex(rightChain->getVertex(i)); - for(i=0; igetVertex(up_rightCornerIndex); - else - ActualTop = topVertex; - } - else if(up_leftCornerWhere == 1) - ActualTop = topVertex; - else //up_leftCornerWhere == 2 - ActualTop = rightChain->getVertex(up_leftCornerIndex); - - ActualBot = gridPoints[gridRightU - gridLeftU]; - - - - - if(leftChain->getVertex(ActualLeftEnd)[1] == ActualBot[1]) - { -/* - monoTriangulationRecGenOpt(ActualTop, leftChain->getVertex(ActualLeftEnd), - leftChain, - ActualLeftStart, ActualLeftEnd-1, - &ActualRightChain, - 0, - ActualRightChain.getNumElements()-1, - pStream); -*/ - - sampleCompTopSimpleOpt(grid, gridV, - ActualTop, leftChain->getVertex(ActualLeftEnd), - leftChain, - ActualLeftStart, ActualLeftEnd-1, - &ActualRightChain, - 0, - ActualRightChain.getNumElements()-1, - pStream); - } - else - { -/* - monoTriangulationRecGenOpt(ActualTop, ActualBot, leftChain, - ActualLeftStart, ActualLeftEnd, - &ActualRightChain, - 0, ActualRightChain.getNumElements()-2, //the last is the bot. - pStream); -*/ - - sampleCompTopSimpleOpt(grid, gridV, - ActualTop, ActualBot, leftChain, - ActualLeftStart, ActualLeftEnd, - &ActualRightChain, - 0, ActualRightChain.getNumElements()-2, //the last is the bot. - pStream); - } - - free(gridPoints); -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompTop.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompTop.h deleted file mode 100644 index 3c444651f..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompTop.h +++ /dev/null @@ -1,74 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleCompTop.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _SAMPLECOMPTOP_H -#define _SAMPLECOMPTOP_H - -#include "sampleMonoPoly.h" - -void sampleCompTop(Real* topVertex, - vertexArray* leftChain, - Int leftStartIndex, - vertexArray* rightChain, - Int rightStartIndex, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridIndex1, - Int up_leftCornerWhere, - Int up_leftCornerIndex, - Int up_rightCornerWhere, - Int up_rightCornerIndex, - primStream* pStream); - -void sampleCompTopSimple(Real* topVertex, - vertexArray* leftChain, - Int leftStartIndex, - vertexArray* rightChain, - Int rightStartIndex, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridIndex1, - Int up_leftCornerWhere, - Int up_leftCornerIndex, - Int up_rightCornerWhere, - Int up_rightCornerIndex, - primStream* pStream); - -#endif - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleMonoPoly.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleMonoPoly.cc deleted file mode 100644 index 31124c3eb..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleMonoPoly.cc +++ /dev/null @@ -1,2424 +0,0 @@ -/* $XFree86: xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleMonoPoly.cc,v 1.2tsi Exp $ */ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/04/23 18:42:56 $ $Revision: 1.2 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleMonoPoly.cc,v 1.2 2004/04/23 18:42:56 eich Exp $ -*/ - -#include "gluos.h" -#include -#include -#include - -#ifndef max -#define max(a,b) ((a>b)? a:b) -#endif -#ifndef min -#define min(a,b) ((a>b)? b:a) -#endif - -#include - -#include "glimports.h" -#include "zlassert.h" -#include "sampleMonoPoly.h" -#include "sampleComp.h" -#include "polyDBG.h" -#include "partitionX.h" - - -#define ZERO 0.00001 - -//#define MYDEBUG - -//#define SHORTEN_GRID_LINE -//see work/newtess/internal/test/problems - - -/*split a polygon so that each vertex correcpond to one edge - *the head of the first edge of the returned plygon must be the head of the first - *edge of the origianl polygon. This is crucial for the code in sampleMonoPoly function - */ - directedLine* polygonConvert(directedLine* polygon) -{ - int i; - directedLine* ret; - sampledLine* sline; - sline = new sampledLine(2); - sline->setPoint(0, polygon->getVertex(0)); - sline->setPoint(1, polygon->getVertex(1)); - ret=new directedLine(INCREASING, sline); - for(i=1; i<= polygon->get_npoints()-2; i++) - { - sline = new sampledLine(2); - sline->setPoint(0, polygon->getVertex(i)); - sline->setPoint(1, polygon->getVertex(i+1)); - ret->insert(new directedLine(INCREASING, sline)); - } - - for(directedLine *temp = polygon->getNext(); temp != polygon; temp = temp->getNext()) - { - for(i=0; i<= temp->get_npoints()-2; i++) - { - sline = new sampledLine(2); - sline->setPoint(0, temp->getVertex(i)); - sline->setPoint(1, temp->getVertex(i+1)); - ret->insert(new directedLine(INCREASING, sline)); - } - } - return ret; -} - -void triangulateConvexPolyVertical(directedLine* topV, directedLine* botV, primStream *pStream) -{ - Int i,j; - Int n_leftVerts; - Int n_rightVerts; - Real** leftVerts; - Real** rightVerts; - directedLine* tempV; - n_leftVerts = 0; - for(tempV = topV; tempV != botV; tempV = tempV->getNext()) - { - n_leftVerts += tempV->get_npoints(); - } - n_rightVerts=0; - for(tempV = botV; tempV != topV; tempV = tempV->getNext()) - { - n_rightVerts += tempV->get_npoints(); - } - - Real2* temp_leftVerts = (Real2 *) malloc(sizeof(Real2) * n_leftVerts); - assert(temp_leftVerts); - Real2* temp_rightVerts = (Real2 *) malloc(sizeof(Real2) * n_rightVerts); - assert(temp_rightVerts); - - leftVerts = (Real**) malloc(sizeof(Real2*) * n_leftVerts); - assert(leftVerts); - rightVerts = (Real**) malloc(sizeof(Real2*) * n_rightVerts); - assert(rightVerts); - for(i=0; igetNext()) - { - for(j=1; jget_npoints(); j++) - { - leftVerts[i][0] = tempV->getVertex(j)[0]; - leftVerts[i][1] = tempV->getVertex(j)[1]; - i++; - } - } - n_leftVerts = i; - i=0; - for(tempV = topV->getPrev(); tempV != botV->getPrev(); tempV = tempV->getPrev()) - { - for(j=tempV->get_npoints()-1; j>=1; j--) - { - rightVerts[i][0] = tempV->getVertex(j)[0]; - rightVerts[i][1] = tempV->getVertex(j)[1]; - i++; - } - } - n_rightVerts = i; - triangulateXYMonoTB(n_leftVerts, leftVerts, n_rightVerts, rightVerts, pStream); - free(leftVerts); - free(rightVerts); - free(temp_leftVerts); - free(temp_rightVerts); -} - -void triangulateConvexPolyHoriz(directedLine* leftV, directedLine* rightV, primStream *pStream) -{ - Int i,j; - Int n_lowerVerts; - Int n_upperVerts; - Real2 *lowerVerts; - Real2 *upperVerts; - directedLine* tempV; - n_lowerVerts=0; - for(tempV = leftV; tempV != rightV; tempV = tempV->getNext()) - { - n_lowerVerts += tempV->get_npoints(); - } - n_upperVerts=0; - for(tempV = rightV; tempV != leftV; tempV = tempV->getNext()) - { - n_upperVerts += tempV->get_npoints(); - } - lowerVerts = (Real2 *) malloc(sizeof(Real2) * n_lowerVerts); - assert(n_lowerVerts); - upperVerts = (Real2 *) malloc(sizeof(Real2) * n_upperVerts); - assert(n_upperVerts); - i=0; - for(tempV = leftV; tempV != rightV; tempV = tempV->getNext()) - { - for(j=0; jget_npoints(); j++) - { - lowerVerts[i][0] = tempV->getVertex(j)[0]; - lowerVerts[i][1] = tempV->getVertex(j)[1]; - i++; - } - } - i=0; - for(tempV = leftV->getPrev(); tempV != rightV->getPrev(); tempV = tempV->getPrev()) - { - for(j=tempV->get_npoints()-1; j>=0; j--) - { - upperVerts[i][0] = tempV->getVertex(j)[0]; - upperVerts[i][1] = tempV->getVertex(j)[1]; - i++; - } - } - triangulateXYMono(n_upperVerts, upperVerts, n_lowerVerts, lowerVerts, pStream); - free(lowerVerts); - free(upperVerts); -} -void triangulateConvexPoly(directedLine* polygon, Int ulinear, Int vlinear, primStream* pStream) -{ - /*find left, right, top , bot - */ - directedLine* tempV; - directedLine* topV; - directedLine* botV; - directedLine* leftV; - directedLine* rightV; - topV = botV = polygon; - - for(tempV = polygon->getNext(); tempV != polygon; tempV = tempV->getNext()) - { - if(compV2InY(topV->head(), tempV->head())<0) { - - topV = tempV; - } - if(compV2InY(botV->head(), tempV->head())>0) { - - botV = tempV; - } - } - //find leftV - for(tempV = topV; tempV != botV; tempV = tempV->getNext()) - { - if(tempV->tail()[0] >= tempV->head()[0]) - break; - } - leftV = tempV; - //find rightV - for(tempV = botV; tempV != topV; tempV = tempV->getNext()) - { - if(tempV->tail()[0] <= tempV->head()[0]) - break; - } - rightV = tempV; - if(vlinear) - { - triangulateConvexPolyHoriz( leftV, rightV, pStream); - } - else if(ulinear) - { - triangulateConvexPolyVertical(topV, botV, pStream); - } - else - { - if(DBG_is_U_direction(polygon)) - { - triangulateConvexPolyHoriz( leftV, rightV, pStream); - } - else - triangulateConvexPolyVertical(topV, botV, pStream); - } -} - -/*for debug purpose*/ -void drawCorners( - Real* topV, Real* botV, - vertexArray* leftChain, - vertexArray* rightChain, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridIndex1, - Int gridIndex2, - Int leftCornerWhere, - Int leftCornerIndex, - Int rightCornerWhere, - Int rightCornerIndex, - Int bot_leftCornerWhere, - Int bot_leftCornerIndex, - Int bot_rightCornerWhere, - Int bot_rightCornerIndex) -{ - Real* leftCornerV; - Real* rightCornerV; - Real* bot_leftCornerV; - Real* bot_rightCornerV; - - if(leftCornerWhere == 1) - leftCornerV = topV; - else if(leftCornerWhere == 0) - leftCornerV = leftChain->getVertex(leftCornerIndex); - else - leftCornerV = rightChain->getVertex(leftCornerIndex); - - if(rightCornerWhere == 1) - rightCornerV = topV; - else if(rightCornerWhere == 0) - rightCornerV = leftChain->getVertex(rightCornerIndex); - else - rightCornerV = rightChain->getVertex(rightCornerIndex); - - if(bot_leftCornerWhere == 1) - bot_leftCornerV = botV; - else if(bot_leftCornerWhere == 0) - bot_leftCornerV = leftChain->getVertex(bot_leftCornerIndex); - else - bot_leftCornerV = rightChain->getVertex(bot_leftCornerIndex); - - if(bot_rightCornerWhere == 1) - bot_rightCornerV = botV; - else if(bot_rightCornerWhere == 0) - bot_rightCornerV = leftChain->getVertex(bot_rightCornerIndex); - else - bot_rightCornerV = rightChain->getVertex(bot_rightCornerIndex); - - Real topGridV = leftGridChain->get_v_value(gridIndex1); - Real topGridU1 = leftGridChain->get_u_value(gridIndex1); - Real topGridU2 = rightGridChain->get_u_value(gridIndex1); - Real botGridV = leftGridChain->get_v_value(gridIndex2); - Real botGridU1 = leftGridChain->get_u_value(gridIndex2); - Real botGridU2 = rightGridChain->get_u_value(gridIndex2); - - glBegin(GL_LINE_STRIP); - glVertex2fv(leftCornerV); - glVertex2f(topGridU1, topGridV); - glEnd(); - - glBegin(GL_LINE_STRIP); - glVertex2fv(rightCornerV); - glVertex2f(topGridU2, topGridV); - glEnd(); - - glBegin(GL_LINE_STRIP); - glVertex2fv(bot_leftCornerV); - glVertex2f(botGridU1, botGridV); - glEnd(); - - glBegin(GL_LINE_STRIP); - glVertex2fv(bot_rightCornerV); - glVertex2f(botGridU2, botGridV); - glEnd(); - - -} - -void toVertexArrays(directedLine* topV, directedLine* botV, vertexArray& leftChain, vertexArray& rightChain) -{ - Int i; - directedLine* tempV; - for(i=1; i<=topV->get_npoints()-2; i++) { /*the first vertex is the top vertex which doesn't belong to inc_chain*/ - leftChain.appendVertex(topV->getVertex(i)); - } - for(tempV = topV->getNext(); tempV != botV; tempV = tempV->getNext()) - { - for(i=0; i<=tempV->get_npoints()-2; i++){ - leftChain.appendVertex(tempV->getVertex(i)); - } - } - - for(tempV = topV->getPrev(); tempV != botV; tempV = tempV->getPrev()) - { - for(i=tempV->get_npoints()-2; i>=0; i--){ - rightChain.appendVertex(tempV->getVertex(i)); - } - } - for(i=botV->get_npoints()-2; i>=1; i--){ - rightChain.appendVertex(tempV->getVertex(i)); - } -} - - -void findTopAndBot(directedLine* polygon, directedLine*& topV, directedLine*& botV) -{ - assert(polygon); - directedLine* tempV; - topV = botV = polygon; - for(tempV = polygon->getNext(); tempV != polygon; tempV = tempV->getNext()) - { - if(compV2InY(topV->head(), tempV->head())<0) { - topV = tempV; - } - if(compV2InY(botV->head(), tempV->head())>0) { - botV = tempV; - } - } -} - -void findGridChains(directedLine* topV, directedLine* botV, - gridWrap* grid, - gridBoundaryChain*& leftGridChain, - gridBoundaryChain*& rightGridChain) -{ - /*find the first(top) and the last (bottom) grid line which intersect the - *this polygon - */ - Int firstGridIndex; /*the index in the grid*/ - Int lastGridIndex; - - firstGridIndex = (Int) ((topV->head()[1] - grid->get_v_min()) / (grid->get_v_max() - grid->get_v_min()) * (grid->get_n_vlines()-1)); - - if(botV->head()[1] < grid->get_v_min()) - lastGridIndex = 0; - else - lastGridIndex = (Int) ((botV->head()[1] - grid->get_v_min()) / (grid->get_v_max() - grid->get_v_min()) * (grid->get_n_vlines()-1)) + 1; - - /*find the interval inside the polygon for each gridline*/ - Int *leftGridIndices = (Int*) malloc(sizeof(Int) * (firstGridIndex - lastGridIndex +1)); - assert(leftGridIndices); - Int *rightGridIndices = (Int*) malloc(sizeof(Int) * (firstGridIndex - lastGridIndex +1)); - assert(rightGridIndices); - Int *leftGridInnerIndices = (Int*) malloc(sizeof(Int) * (firstGridIndex - lastGridIndex +1)); - assert(leftGridInnerIndices); - Int *rightGridInnerIndices = (Int*) malloc(sizeof(Int) * (firstGridIndex - lastGridIndex +1)); - assert(rightGridInnerIndices); - - findLeftGridIndices(topV, firstGridIndex, lastGridIndex, grid, leftGridIndices, leftGridInnerIndices); - - findRightGridIndices(topV, firstGridIndex, lastGridIndex, grid, rightGridIndices, rightGridInnerIndices); - - leftGridChain = new gridBoundaryChain(grid, firstGridIndex, firstGridIndex-lastGridIndex+1, leftGridIndices, leftGridInnerIndices); - - rightGridChain = new gridBoundaryChain(grid, firstGridIndex, firstGridIndex-lastGridIndex+1, rightGridIndices, rightGridInnerIndices); - - free(leftGridIndices); - free(rightGridIndices); - free(leftGridInnerIndices); - free(rightGridInnerIndices); -} - -void findDownCorners(Real *botVertex, - vertexArray *leftChain, Int leftChainStartIndex, Int leftChainEndIndex, - vertexArray *rightChain, Int rightChainStartIndex, Int rightChainEndIndex, - Real v, - Real uleft, - Real uright, - Int& ret_leftCornerWhere, /*0: left chain, 1: topvertex, 2: rightchain*/ - Int& ret_leftCornerIndex, /*useful when ret_leftCornerWhere == 0 or 2*/ - Int& ret_rightCornerWhere, /*0: left chain, 1: topvertex, 2: rightchain*/ - Int& ret_rightCornerIndex /*useful when ret_leftCornerWhere == 0 or 2*/ - ) -{ -#ifdef MYDEBUG -printf("*************enter find donw corner\n"); -printf("finddownCorner: v=%f, uleft=%f, uright=%f\n", v, uleft, uright); -printf("(%i,%i,%i,%i)\n", leftChainStartIndex, leftChainEndIndex,rightChainStartIndex, rightChainEndIndex); -printf("left chain is\n"); -leftChain->print(); -printf("right chain is\n"); -rightChain->print(); -#endif - - assert(v > botVertex[1]); - Real leftGridPoint[2]; - leftGridPoint[0] = uleft; - leftGridPoint[1] = v; - Real rightGridPoint[2]; - rightGridPoint[0] = uright; - rightGridPoint[1] = v; - - Int i; - Int index1, index2; - - index1 = leftChain->findIndexBelowGen(v, leftChainStartIndex, leftChainEndIndex); - index2 = rightChain->findIndexBelowGen(v, rightChainStartIndex, rightChainEndIndex); - - if(index2 <= rightChainEndIndex) //index2 was found above - index2 = rightChain->skipEqualityFromStart(v, index2, rightChainEndIndex); - - if(index1>leftChainEndIndex && index2 > rightChainEndIndex) /*no point below v on left chain or right chain*/ - { - - /*the botVertex is the only vertex below v*/ - ret_leftCornerWhere = 1; - ret_rightCornerWhere = 1; - } - else if(index1>leftChainEndIndex ) /*index2 <= rightChainEndIndex*/ - { - - ret_rightCornerWhere = 2; /*on right chain*/ - ret_rightCornerIndex = index2; - - - Real tempMin = rightChain->getVertex(index2)[0]; - Real tempI = index2; - for(i=index2+1; i<= rightChainEndIndex; i++) - if(rightChain->getVertex(i)[0] < tempMin) - { - tempI = i; - tempMin = rightChain->getVertex(i)[0]; - } - - - //we consider whether we can use botVertex as left corner. First check - //if (leftGirdPoint, botVertex) interesects right chian or not. - if(DBG_intersectChain(rightChain, rightChainStartIndex,rightChainEndIndex, - leftGridPoint, botVertex)) - { - ret_leftCornerWhere = 2;//right - ret_leftCornerIndex = index2; //should use tempI??? - } - else if(botVertex[0] < tempMin) - ret_leftCornerWhere = 1; //bot - else - { - ret_leftCornerWhere = 2; //right - ret_leftCornerIndex = (int)tempI; - } - } - else if(index2> rightChainEndIndex) /*index1<=leftChainEndIndex*/ - { - ret_leftCornerWhere = 0; /*left chain*/ - ret_leftCornerIndex = index1; - - /*find the vertex on the left chain with the maximum u, - *either this vertex or the botvertex can be used as the right corner - */ - - int tempI; - //skip those points which are equal to v. (avoid degeneratcy) - for(tempI = index1; tempI <= leftChainEndIndex; tempI++) - if(leftChain->getVertex(tempI)[1] < v) - break; - if(tempI > leftChainEndIndex) - ret_rightCornerWhere = 1; - else - { - Real tempMax = leftChain->getVertex(tempI)[0]; - for(i=tempI; i<= leftChainEndIndex; i++) - if(leftChain->getVertex(i)[0] > tempMax) - { - tempI = i; - tempMax = leftChain->getVertex(i)[0]; - } - - - - //we consider whether we can use botVertex as a corner. So first we check - //whether (rightGridPoint, botVertex) interescts the left chain or not. - if(DBG_intersectChain(leftChain, leftChainStartIndex,leftChainEndIndex, - rightGridPoint, botVertex)) - { - ret_rightCornerWhere = 0; - ret_rightCornerIndex = index1; //should use tempI??? - } - else if(botVertex[0] > tempMax) - { - - ret_rightCornerWhere = 1; - } - else - { - ret_rightCornerWhere = 0; - ret_rightCornerIndex = tempI; - } - } - - } - else /*index1<=leftChainEndIndex and index2 <=rightChainEndIndex*/ - { - if(leftChain->getVertex(index1)[1] >= rightChain->getVertex(index2)[1]) /*left point above right point*/ - { - ret_leftCornerWhere = 0; /*on left chain*/ - ret_leftCornerIndex = index1; - - Real tempMax; - Int tempI; - - tempI = index1; - tempMax = leftChain->getVertex(index1)[0]; - - /*find the maximum u for all the points on the left above the right point index2*/ - for(i=index1+1; i<= leftChainEndIndex; i++) - { - if(leftChain->getVertex(i)[1] < rightChain->getVertex(index2)[1]) - break; - - if(leftChain->getVertex(i)[0]>tempMax) - { - tempI = i; - tempMax = leftChain->getVertex(i)[0]; - } - } - //we consider if we can use rightChain(index2) as right corner - //we check if (rightChain(index2), rightGidPoint) intersecs left chain or not. - if(DBG_intersectChain(leftChain, leftChainStartIndex,leftChainEndIndex, rightGridPoint, rightChain->getVertex(index2))) - { - ret_rightCornerWhere = 0; - ret_rightCornerIndex = index1; //should use tempI??? - } - else if(tempMax >= rightChain->getVertex(index2)[0] || - tempMax >= uright - ) - { - - ret_rightCornerWhere = 0; /*on left Chain*/ - ret_rightCornerIndex = tempI; - } - else - { - ret_rightCornerWhere = 2; /*on right chain*/ - ret_rightCornerIndex = index2; - } - } - else /*left below right*/ - { - ret_rightCornerWhere = 2; /*on the right*/ - ret_rightCornerIndex = index2; - - Real tempMin; - Int tempI; - - tempI = index2; - tempMin = rightChain->getVertex(index2)[0]; - - /*find the minimum u for all the points on the right above the left poitn index1*/ - for(i=index2+1; i<= rightChainEndIndex; i++) - { - if( rightChain->getVertex(i)[1] < leftChain->getVertex(index1)[1]) - break; - if(rightChain->getVertex(i)[0] < tempMin) - { - tempI = i; - tempMin = rightChain->getVertex(i)[0]; - } - } - - //we consider if we can use leftchain(index1) as left corner. - //we check if (leftChain(index1) intersects right chian or not - if(DBG_intersectChain(rightChain, rightChainStartIndex, rightChainEndIndex, leftGridPoint, leftChain->getVertex(index1))) - { - ret_leftCornerWhere = 2; - ret_leftCornerIndex = index2; //should use tempI??? - } - else if(tempMin <= leftChain->getVertex(index1)[0] || - tempMin <= uleft) - { - ret_leftCornerWhere = 2; /* on right chain*/ - ret_leftCornerIndex = tempI; - } - else - { - ret_leftCornerWhere = 0; /*on left chain*/ - ret_leftCornerIndex = index1; - } - } - } - -} - - -void findUpCorners(Real *topVertex, - vertexArray *leftChain, Int leftChainStartIndex, Int leftChainEndIndex, - vertexArray *rightChain, Int rightChainStartIndex, Int rightChainEndIndex, - Real v, - Real uleft, - Real uright, - Int& ret_leftCornerWhere, /*0: left chain, 1: topvertex, 2: rightchain*/ - Int& ret_leftCornerIndex, /*useful when ret_leftCornerWhere == 0 or 2*/ - Int& ret_rightCornerWhere, /*0: left chain, 1: topvertex, 2: rightchain*/ - Int& ret_rightCornerIndex /*useful when ret_leftCornerWhere == 0 or 2*/ - ) -{ -#ifdef MYDEBUG -printf("***********enter findUpCorners\n"); -#endif - - assert(v < topVertex[1]); - Real leftGridPoint[2]; - leftGridPoint[0] = uleft; - leftGridPoint[1] = v; - Real rightGridPoint[2]; - rightGridPoint[0] = uright; - rightGridPoint[1] = v; - - Int i; - Int index1, index2; - - index1 = leftChain->findIndexFirstAboveEqualGen(v, leftChainStartIndex, leftChainEndIndex); - - - index2 = rightChain->findIndexFirstAboveEqualGen(v, rightChainStartIndex, rightChainEndIndex); - - if(index2>= leftChainStartIndex) //index2 was found above - index2 = rightChain->skipEqualityFromStart(v, index2, rightChainEndIndex); - - if(index1= rightChainStartIndex*/ - { - ret_rightCornerWhere = 2; /*on right chain*/ - ret_rightCornerIndex = index2; - - //find the minimum u on right top, either that, or top, or right[index2] is the left corner - Real tempMin = rightChain->getVertex(index2)[0]; - Int tempI = index2; - for(i=index2-1; i>=rightChainStartIndex; i--) - if(rightChain->getVertex(i)[0] < tempMin) - { - tempMin = rightChain->getVertex(i)[0]; - tempI = i; - } - //chech whether (leftGridPoint, top) intersects rightchai, - //if yes, use right corner as left corner - //if not, use top or right[tempI] as left corner - if(DBG_intersectChain(rightChain, rightChainStartIndex, rightChainEndIndex, - leftGridPoint, topVertex)) - { - ret_leftCornerWhere = 2; //rightChain - ret_leftCornerIndex = index2; - } - else if(topVertex[0] < tempMin) - ret_leftCornerWhere = 1; /*topvertex*/ - else - { - ret_leftCornerWhere = 2; //right chain - ret_leftCornerIndex = tempI; - } - - } - else if(index2< rightChainStartIndex) /*index1>=leftChainStartIndex*/ - { - ret_leftCornerWhere = 0; /*left chain*/ - ret_leftCornerIndex = index1; - - //find the maximum u on the left top section. either that or topvertex, or left[index1] is the right corner - Real tempMax = leftChain->getVertex(index1)[0]; - Int tempI = index1; - - for(i=index1-1; i>=leftChainStartIndex; i--){ - - if(leftChain->getVertex(i)[0] > tempMax) - { - - tempMax = leftChain->getVertex(i)[0]; - tempI = i; - } - } - //check whether (rightGridPoint, top) intersects leftChain or not - //if yes, we use leftCorner as the right corner - //if not, we use either top or left[tempI] as the right corner - if(DBG_intersectChain(leftChain, leftChainStartIndex,leftChainEndIndex, - rightGridPoint, topVertex)) - { - ret_rightCornerWhere = 0; //left chan - ret_rightCornerIndex = index1; - } - else if(topVertex[0] > tempMax) - ret_rightCornerWhere = 1;//topVertex - else - { - ret_rightCornerWhere = 0;//left chain - ret_rightCornerIndex = tempI; - } - } - else /*index1>=leftChainStartIndex and index2 >=rightChainStartIndex*/ - { - if(leftChain->getVertex(index1)[1] <= rightChain->getVertex(index2)[1]) /*left point below right point*/ - { - ret_leftCornerWhere = 0; /*on left chain*/ - ret_leftCornerIndex = index1; - - Real tempMax; - Int tempI; - - tempI = index1; - tempMax = leftChain->getVertex(index1)[0]; - - /*find the maximum u for all the points on the left below the right point index2*/ - for(i=index1-1; i>= leftChainStartIndex; i--) - { - if(leftChain->getVertex(i)[1] > rightChain->getVertex(index2)[1]) - break; - - if(leftChain->getVertex(i)[0]>tempMax) - { - tempI = i; - tempMax = leftChain->getVertex(i)[0]; - } - } - //chek whether (rightChain(index2), rightGridPoint) intersects leftchian or not - if(DBG_intersectChain(leftChain, leftChainStartIndex, leftChainEndIndex, rightGridPoint, rightChain->getVertex(index2))) - { - ret_rightCornerWhere = 0; - ret_rightCornerIndex = index1; - } - else if(tempMax >= rightChain->getVertex(index2)[0] || - tempMax >= uright) - { - ret_rightCornerWhere = 0; /*on left Chain*/ - ret_rightCornerIndex = tempI; - } - else - { - ret_rightCornerWhere = 2; /*on right chain*/ - ret_rightCornerIndex = index2; - } - } - else /*left above right*/ - { - ret_rightCornerWhere = 2; /*on the right*/ - ret_rightCornerIndex = index2; - - Real tempMin; - Int tempI; - - tempI = index2; - tempMin = rightChain->getVertex(index2)[0]; - - /*find the minimum u for all the points on the right below the left poitn index1*/ - for(i=index2-1; i>= rightChainStartIndex; i--) - { - if( rightChain->getVertex(i)[1] > leftChain->getVertex(index1)[1]) - break; - if(rightChain->getVertex(i)[0] < tempMin) - { - tempI = i; - tempMin = rightChain->getVertex(i)[0]; - } - } - //check whether (leftGRidPoint,left(index1)) interesect right chain - if(DBG_intersectChain(rightChain, rightChainStartIndex, rightChainEndIndex, - leftGridPoint, leftChain->getVertex(index1))) - { - ret_leftCornerWhere = 2; //right - ret_leftCornerIndex = index2; - } - else if(tempMin <= leftChain->getVertex(index1)[0] || - tempMin <= uleft) - { - ret_leftCornerWhere = 2; /* on right chain*/ - ret_leftCornerIndex = tempI; - } - else - { - ret_leftCornerWhere = 0; /*on left chain*/ - ret_leftCornerIndex = index1; - } - } - } -#ifdef MYDEBUG -printf("***********leave findUpCorners\n"); -#endif -} - -//return 1 if neck exists, 0 othewise -Int findNeckF(vertexArray *leftChain, Int botLeftIndex, - vertexArray *rightChain, Int botRightIndex, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridStartIndex, - Int& neckLeft, - Int& neckRight) -{ -/* -printf("enter findNeckF, botleft, botright=%i,%i,gstartindex=%i\n",botLeftIndex,botRightIndex,gridStartIndex); -printf("leftChain is\n"); -leftChain->print(); -printf("rightChain is\n"); -rightChain->print(); -*/ - - Int lowerGridIndex; //the grid below leftChain and rightChian vertices - Int i; - Int n_vlines = leftGridChain->get_nVlines(); - Real v; - if(botLeftIndex >= leftChain->getNumElements() || - botRightIndex >= rightChain->getNumElements()) - return 0; //no neck exists - - v=min(leftChain->getVertex(botLeftIndex)[1], rightChain->getVertex(botRightIndex)[1]); - - - - - for(i=gridStartIndex; iget_v_value(i) <= v && - leftGridChain->getUlineIndex(i)<= rightGridChain->getUlineIndex(i)) - break; - - lowerGridIndex = i; - - if(lowerGridIndex == n_vlines) //the two trm vertex are higher than all gridlines - return 0; - else - { - Int botLeft2, botRight2; -/* -printf("leftGridChain->get_v_)value=%f\n",leftGridChain->get_v_value(lowerGridIndex), botLeftIndex); -printf("leftChain->get_vertex(0)=(%f,%f)\n", leftChain->getVertex(0)[0],leftChain->getVertex(0)[1]); -printf("leftChain->get_vertex(1)=(%f,%f)\n", leftChain->getVertex(1)[0],leftChain->getVertex(1)[1]); -printf("leftChain->get_vertex(2)=(%f,%f)\n", leftChain->getVertex(2)[0],leftChain->getVertex(2)[1]); -*/ - botLeft2 = leftChain->findIndexFirstAboveEqualGen(leftGridChain->get_v_value(lowerGridIndex), botLeftIndex, leftChain->getNumElements()-1) -1 ; - -/* -printf("botLeft2=%i\n", botLeft2); -printf("leftChain->getNumElements=%i\n", leftChain->getNumElements()); -*/ - - botRight2 = rightChain->findIndexFirstAboveEqualGen(leftGridChain->get_v_value(lowerGridIndex), botRightIndex, rightChain->getNumElements()-1) -1; - if(botRight2 < botRightIndex) botRight2=botRightIndex; - - if(botLeft2 < botLeftIndex) botLeft2 = botLeftIndex; - - assert(botLeft2 >= botLeftIndex); - assert(botRight2 >= botRightIndex); - //find nectLeft so that it is th erightmost vertex on letChain - - Int tempI = botLeftIndex; - Real temp = leftChain->getVertex(tempI)[0]; - for(i=botLeftIndex+1; i<= botLeft2; i++) - if(leftChain->getVertex(i)[0] > temp) - { - temp = leftChain->getVertex(i)[0]; - tempI = i; - } - neckLeft = tempI; - - tempI = botRightIndex; - temp = rightChain->getVertex(tempI)[0]; - for(i=botRightIndex+1; i<= botRight2; i++) - if(rightChain->getVertex(i)[0] < temp) - { - temp = rightChain->getVertex(i)[0]; - tempI = i; - } - neckRight = tempI; - return 1; - } -} - - - -/*find i>=botLeftIndex,j>=botRightIndex so that - *(leftChain[i], rightChain[j]) is a neck. - */ -void findNeck(vertexArray *leftChain, Int botLeftIndex, - vertexArray *rightChain, Int botRightIndex, - Int& leftLastIndex, /*left point of the neck*/ - Int& rightLastIndex /*right point of the neck*/ - ) -{ - assert(botLeftIndex < leftChain->getNumElements() && - botRightIndex < rightChain->getNumElements()); - - /*now the neck exists for sure*/ - - if(leftChain->getVertex(botLeftIndex)[1] <= rightChain->getVertex(botRightIndex)[1]) //left below right - { - - leftLastIndex = botLeftIndex; - - /*find i so that rightChain[i][1] >= leftchainbotverte[1], and i+1< - */ - rightLastIndex=rightChain->findIndexAboveGen(leftChain->getVertex(botLeftIndex)[1], botRightIndex+1, rightChain->getNumElements()-1); - } - else //left above right - { - - rightLastIndex = botRightIndex; - - leftLastIndex = leftChain->findIndexAboveGen(rightChain->getVertex(botRightIndex)[1], - botLeftIndex+1, - leftChain->getNumElements()-1); - } -} - - - -void findLeftGridIndices(directedLine* topEdge, Int firstGridIndex, Int lastGridIndex, gridWrap* grid, Int* ret_indices, Int* ret_innerIndices) -{ - - Int i,k,isHoriz; - Int n_ulines = grid->get_n_ulines(); - Real uMin = grid->get_u_min(); - Real uMax = grid->get_u_max(); - Real vMin = grid->get_v_min(); - Real vMax = grid->get_v_max(); - Real slop, uinterc; - -#ifdef SHORTEN_GRID_LINE - //uintercBuf stores all the interction u value for each grid line - //notice that lastGridIndex<= firstGridIndex - Real *uintercBuf = (Real *) malloc (sizeof(Real) * (firstGridIndex-lastGridIndex+1)); - assert(uintercBuf); -#endif - - /*initialization to make vtail bigger than grid->...*/ - directedLine* dLine = topEdge; - Real vtail = grid->get_v_value(firstGridIndex) + 1.0; - Real tempMaxU = grid->get_u_min(); - - - /*for each grid line*/ - for(k=0, i=firstGridIndex; i>=lastGridIndex; i--, k++) - { - - Real grid_v_value = grid->get_v_value(i); - - /*check whether this grid line is below the current trim edge.*/ - if(vtail > grid_v_value) - { - /*since the grid line is below the trim edge, we - *find the trim edge which will contain the trim line - */ - while( (vtail=dLine->tail()[1]) > grid_v_value){ - - tempMaxU = max(tempMaxU, dLine->tail()[0]); - dLine = dLine -> getNext(); - } - - if( fabs(dLine->head()[1] - vtail) < ZERO) - isHoriz = 1; - else - { - isHoriz = 0; - slop = (dLine->head()[0] - dLine->tail()[0]) / (dLine->head()[1]-vtail); - } - } - - if(isHoriz) - { - uinterc = max(dLine->head()[0], dLine->tail()[0]); - } - else - { - uinterc = slop * (grid_v_value - vtail) + dLine->tail()[0]; - } - - tempMaxU = max(tempMaxU, uinterc); - - if(uinterc < uMin && uinterc >= uMin - ZERO) - uinterc = uMin; - if(uinterc > uMax && uinterc <= uMax + ZERO) - uinterc = uMax; - -#ifdef SHORTEN_GRID_LINE - uintercBuf[k] = uinterc; -#endif - - assert(uinterc >= uMin && uinterc <= uMax); - if(uinterc == uMax) - ret_indices[k] = n_ulines-1; - else - ret_indices[k] = (Int)(((uinterc-uMin)/(uMax - uMin)) * (n_ulines-1)) + 1; - if(ret_indices[k] >= n_ulines) - ret_indices[k] = n_ulines-1; - - - ret_innerIndices[k] = (Int)(((tempMaxU-uMin)/(uMax - uMin)) * (n_ulines-1)) + 1; - - /*reinitialize tempMaxU for next grdiLine*/ - tempMaxU = uinterc; - } -#ifdef SHORTEN_GRID_LINE - //for each grid line, compare the left grid point with the - //intersection point. If the two points are too close, then - //we should move the grid point one grid to the right - //and accordingly we should update the inner index. - for(k=0, i=firstGridIndex; i>=lastGridIndex; i--, k++) - { - //check gridLine i - //check ret_indices[k] - Real a = grid->get_u_value(ret_indices[k]-1); - Real b = grid->get_u_value(ret_indices[k]); - assert(uintercBuf[k] >= a && uintercBuf < b); - if( (b-uintercBuf[k]) <= 0.2 * (b-a)) //interc is very close to b - { - ret_indices[k]++; - } - - //check ret_innerIndices[k] - if(k>0) - { - if(ret_innerIndices[k] < ret_indices[k-1]) - ret_innerIndices[k] = ret_indices[k-1]; - if(ret_innerIndices[k] < ret_indices[k]) - ret_innerIndices[k] = ret_indices[k]; - } - } - //clean up - free(uintercBuf); -#endif -} - -void findRightGridIndices(directedLine* topEdge, Int firstGridIndex, Int lastGridIndex, gridWrap* grid, Int* ret_indices, Int* ret_innerIndices) -{ - - Int i,k; - Int n_ulines = grid->get_n_ulines(); - Real uMin = grid->get_u_min(); - Real uMax = grid->get_u_max(); - Real vMin = grid->get_v_min(); - Real vMax = grid->get_v_max(); - Real slop, uinterc; - -#ifdef SHORTEN_GRID_LINE - //uintercBuf stores all the interction u value for each grid line - //notice that firstGridIndex >= lastGridIndex - Real *uintercBuf = (Real *) malloc (sizeof(Real) * (firstGridIndex-lastGridIndex+1)); - assert(uintercBuf); -#endif - - /*initialization to make vhead bigger than grid->v_value...*/ - directedLine* dLine = topEdge->getPrev(); - Real vhead = dLine->tail()[1]; - Real tempMinU = grid->get_u_max(); - - /*for each grid line*/ - for(k=0, i=firstGridIndex; i>=lastGridIndex; i--, k++) - { - - Real grid_v_value = grid->get_v_value(i); - - - /*check whether this grid line is below the current trim edge.*/ - if(vhead >= grid_v_value) - { - /*since the grid line is below the tail of the trim edge, we - *find the trim edge which will contain the trim line - */ - while( (vhead=dLine->head()[1]) > grid_v_value){ - tempMinU = min(tempMinU, dLine->head()[0]); - dLine = dLine -> getPrev(); - } - - /*skip the equality in the case of degenerat case: horizontal */ - while(dLine->head()[1] == grid_v_value) - dLine = dLine->getPrev(); - - assert( dLine->tail()[1] != dLine->head()[1]); - slop = (dLine->tail()[0] - dLine->head()[0]) / (dLine->tail()[1]-dLine->head()[1]); - /* - if(dLine->tail()[1] == vhead) - isHoriz = 1; - else - { - isHoriz = 0; - slop = (dLine->tail()[0] - dLine->head()[0]) / (dLine->tail()[1]-vhead); - } - */ - } - uinterc = slop * (grid_v_value - dLine->head()[1]) + dLine->head()[0]; - - //in case unterc is outside of the grid due to floating point - if(uinterc < uMin) - uinterc = uMin; - else if(uinterc > uMax) - uinterc = uMax; - -#ifdef SHORTEN_GRID_LINE - uintercBuf[k] = uinterc; -#endif - - tempMinU = min(tempMinU, uinterc); - - assert(uinterc >= uMin && uinterc <= uMax); - - if(uinterc == uMin) - ret_indices[k] = 0; - else - ret_indices[k] = (int)ceil((((uinterc-uMin)/(uMax - uMin)) * (n_ulines-1))) -1; -/* -if(ret_indices[k] >= grid->get_n_ulines()) - { - printf("ERROR3\n"); - exit(0); -} -if(ret_indices[k] < 0) - { - printf("ERROR4\n"); - exit(0); -} -*/ - ret_innerIndices[k] = (int)ceil ((((tempMinU-uMin)/(uMax - uMin)) * (n_ulines-1))) -1; - - tempMinU = uinterc; - } -#ifdef SHORTEN_GRID_LINE - //for each grid line, compare the left grid point with the - //intersection point. If the two points are too close, then - //we should move the grid point one grid to the right - //and accordingly we should update the inner index. - for(k=0, i=firstGridIndex; i>=lastGridIndex; i--, k++) - { - //check gridLine i - //check ret_indices[k] - Real a = grid->get_u_value(ret_indices[k]); - Real b = grid->get_u_value(ret_indices[k]+1); - assert(uintercBuf[k] > a && uintercBuf <= b); - if( (uintercBuf[k]-a) <= 0.2 * (b-a)) //interc is very close to a - { - ret_indices[k]--; - } - - //check ret_innerIndices[k] - if(k>0) - { - if(ret_innerIndices[k] > ret_indices[k-1]) - ret_innerIndices[k] = ret_indices[k-1]; - if(ret_innerIndices[k] > ret_indices[k]) - ret_innerIndices[k] = ret_indices[k]; - } - } - //clean up - free(uintercBuf); -#endif -} - - -void sampleMonoPoly(directedLine* polygon, gridWrap* grid, Int ulinear, Int vlinear, primStream* pStream, rectBlockArray* rbArray) -{ -/* -{ -grid->print(); -polygon->writeAllPolygons("zloutputFile"); -exit(0); -} -*/ - -if(grid->get_n_ulines() == 2 || - grid->get_n_vlines() == 2) -{ - if(ulinear && grid->get_n_ulines() == 2) - { - monoTriangulationFun(polygon, compV2InY, pStream); - return; - } - else if(DBG_isConvex(polygon) && polygon->numEdges() >=4) - { - triangulateConvexPoly(polygon, ulinear, vlinear, pStream); - return; - } - else if(vlinear || DBG_is_U_direction(polygon)) - { - Int n_cusps;//num interior cusps - Int n_edges = polygon->numEdges(); - directedLine** cusps = (directedLine**) malloc(sizeof(directedLine*) * n_edges); - assert(cusps); - findInteriorCuspsX(polygon, n_cusps, cusps); - - if(n_cusps == 0) //u_monotone - { - - monoTriangulationFun(polygon, compV2InX, pStream); - - free(cusps); - return; - } - else if(n_cusps == 1) //one interior cusp - { - - directedLine* new_polygon = polygonConvert(cusps[0]); - - directedLine* other = findDiagonal_singleCuspX( new_polygon); - - - - // should NOT be null unless there are self-intersecting - //trim curves. In that case, we don't want to core dump, instead, - //we triangulate anyway, and print out error message. - if(other == NULL) - { - monoTriangulationFun(polygon, compV2InX, pStream); - free(cusps); - return; - } - - directedLine* ret_p1; - directedLine* ret_p2; - - new_polygon->connectDiagonal_2slines(new_polygon, other, - &ret_p1, - &ret_p2, - new_polygon); - - monoTriangulationFun(ret_p1, compV2InX, pStream); - monoTriangulationFun(ret_p2, compV2InX, pStream); - - ret_p1->deleteSinglePolygonWithSline(); - ret_p2->deleteSinglePolygonWithSline(); - - free(cusps); - return; - } - free(cusps); - } -} - - /*find the top and bottom of the polygon. It is supposed to be - *a V-monotone polygon - */ - - directedLine* tempV; - directedLine* topV; - directedLine* botV; - topV = botV = polygon; - - for(tempV = polygon->getNext(); tempV != polygon; tempV = tempV->getNext()) - { - if(compV2InY(topV->head(), tempV->head())<0) { - - topV = tempV; - } - if(compV2InY(botV->head(), tempV->head())>0) { - - botV = tempV; - } - } - - /*find the first(top) and the last (bottom) grid line which intersect the - *this polygon - */ - Int firstGridIndex; /*the index in the grid*/ - Int lastGridIndex; - firstGridIndex = (Int) ((topV->head()[1] - grid->get_v_min()) / (grid->get_v_max() - grid->get_v_min()) * (grid->get_n_vlines()-1)); - lastGridIndex = (Int) ((botV->head()[1] - grid->get_v_min()) / (grid->get_v_max() - grid->get_v_min()) * (grid->get_n_vlines()-1)) + 1; - - - /*find the interval inside the polygon for each gridline*/ - Int *leftGridIndices = (Int*) malloc(sizeof(Int) * (firstGridIndex - lastGridIndex +1)); - assert(leftGridIndices); - Int *rightGridIndices = (Int*) malloc(sizeof(Int) * (firstGridIndex - lastGridIndex +1)); - assert(rightGridIndices); - Int *leftGridInnerIndices = (Int*) malloc(sizeof(Int) * (firstGridIndex - lastGridIndex +1)); - assert(leftGridInnerIndices); - Int *rightGridInnerIndices = (Int*) malloc(sizeof(Int) * (firstGridIndex - lastGridIndex +1)); - assert(rightGridInnerIndices); - - findLeftGridIndices(topV, firstGridIndex, lastGridIndex, grid, leftGridIndices, leftGridInnerIndices); - - findRightGridIndices(topV, firstGridIndex, lastGridIndex, grid, rightGridIndices, rightGridInnerIndices); - - gridBoundaryChain leftGridChain(grid, firstGridIndex, firstGridIndex-lastGridIndex+1, leftGridIndices, leftGridInnerIndices); - - gridBoundaryChain rightGridChain(grid, firstGridIndex, firstGridIndex-lastGridIndex+1, rightGridIndices, rightGridInnerIndices); - - - -// leftGridChain.draw(); -// leftGridChain.drawInner(); -// rightGridChain.draw(); -// rightGridChain.drawInner(); - /*(1) determine the grid boundaries (left and right). - *(2) process polygon into two monotone chaines: use vertexArray - *(3) call sampleMonoPolyRec - */ - - /*copy the two chains into vertexArray datastructure*/ - Int i; - vertexArray leftChain(20); /*this is a dynamic array*/ - for(i=1; i<=topV->get_npoints()-2; i++) { /*the first vertex is the top vertex which doesn't belong to inc_chain*/ - leftChain.appendVertex(topV->getVertex(i)); - } - for(tempV = topV->getNext(); tempV != botV; tempV = tempV->getNext()) - { - for(i=0; i<=tempV->get_npoints()-2; i++){ - leftChain.appendVertex(tempV->getVertex(i)); - } - } - - vertexArray rightChain(20); - for(tempV = topV->getPrev(); tempV != botV; tempV = tempV->getPrev()) - { - for(i=tempV->get_npoints()-2; i>=0; i--){ - rightChain.appendVertex(tempV->getVertex(i)); - } - } - for(i=botV->get_npoints()-2; i>=1; i--){ - rightChain.appendVertex(tempV->getVertex(i)); - } - - sampleMonoPolyRec(topV->head(), - botV->head(), - &leftChain, - 0, - &rightChain, - 0, - &leftGridChain, - &rightGridChain, - 0, - pStream, - rbArray); - - - /*cleanup space*/ - free(leftGridIndices); - free(rightGridIndices); - free(leftGridInnerIndices); - free(rightGridInnerIndices); -} - -void sampleMonoPolyRec( - Real* topVertex, - Real* botVertex, - vertexArray* leftChain, - Int leftStartIndex, - vertexArray* rightChain, - Int rightStartIndex, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridStartIndex, - primStream* pStream, - rectBlockArray* rbArray) -{ - - /*find the first connected component, and the four corners. - */ - Int index1, index2; /*the first and last grid line of the first connected component*/ - - if(topVertex[1] <= botVertex[1]) - return; - - /*find i so that the grid line is below the top vertex*/ - Int i=gridStartIndex; - while (i < leftGridChain->get_nVlines()) - { - if(leftGridChain->get_v_value(i) < topVertex[1]) - break; - i++; - } - - /*find the first connected component starting with i*/ - /*find index1 so that left_uline_index <= right_uline_index, that is, this - *grid line contains at least one inner grid point - */ - index1=i; - int num_skipped_grid_lines=0; - while(index1 < leftGridChain->get_nVlines()) - { - if(leftGridChain->getUlineIndex(index1) <= rightGridChain->getUlineIndex(index1)) - break; - num_skipped_grid_lines++; - index1++; - } - - - - if(index1 >= leftGridChain->get_nVlines()) /*no grid line exists which has inner point*/ - { - /*stop recursion, ...*/ - /*monotone triangulate it...*/ -// printf("no grid line exists\n"); -/* - monoTriangulationRecOpt(topVertex, botVertex, leftChain, leftStartIndex, - rightChain, rightStartIndex, pStream); -*/ - -if(num_skipped_grid_lines <2) - { - monoTriangulationRecGenOpt(topVertex, botVertex, leftChain, leftStartIndex, - leftChain->getNumElements()-1, - rightChain, rightStartIndex, - rightChain->getNumElements()-1, - pStream); - } -else - { - //the optimum way to triangulate is top-down since this polygon - //is narrow-long. - monoTriangulationRec(topVertex, botVertex, leftChain, leftStartIndex, - rightChain, rightStartIndex, pStream); - } - -/* - monoTriangulationRec(topVertex, botVertex, leftChain, leftStartIndex, - rightChain, rightStartIndex, pStream); -*/ - -/* monoTriangulationRecGenTBOpt(topVertex, botVertex, - leftChain, leftStartIndex, leftChain->getNumElements()-1, - rightChain, rightStartIndex, rightChain->getNumElements()-1, - pStream);*/ - - - - } - else - { - - /*find index2 so that left_inner_index <= right_inner_index holds until index2*/ - index2=index1+1; - if(index2 < leftGridChain->get_nVlines()) - while(leftGridChain->getInnerIndex(index2) <= rightGridChain->getInnerIndex(index2)) - { - index2++; - if(index2 >= leftGridChain->get_nVlines()) - break; - } - - index2--; - - - - /*the neck*/ - Int neckLeftIndex; - Int neckRightIndex; - - /*the four corners*/ - Int up_leftCornerWhere; - Int up_leftCornerIndex; - Int up_rightCornerWhere; - Int up_rightCornerIndex; - Int down_leftCornerWhere; - Int down_leftCornerIndex; - Int down_rightCornerWhere; - Int down_rightCornerIndex; - - Real* tempBotVertex; /*the bottom vertex for this component*/ - Real* nextTopVertex=NULL; /*for the recursion*/ - Int nextLeftStartIndex=0; - Int nextRightStartIndex=0; - - /*find the points below the grid line index2 on both chains*/ - Int botLeftIndex = leftChain->findIndexStrictBelowGen( - leftGridChain->get_v_value(index2), - leftStartIndex, - leftChain->getNumElements()-1); - Int botRightIndex = rightChain->findIndexStrictBelowGen( - rightGridChain->get_v_value(index2), - rightStartIndex, - rightChain->getNumElements()-1); - /*if either botLeftIndex>= numelements, - * or botRightIndex >= numelemnet, - *then there is no neck exists. the bottom vertex is botVertex, - */ - if(! findNeckF(leftChain, botLeftIndex, rightChain, botRightIndex, - leftGridChain, rightGridChain, index2, neckLeftIndex, neckRightIndex)) - /* - if(botLeftIndex == leftChain->getNumElements() || - botRightIndex == rightChain->getNumElements()) - */ - { -#ifdef MYDEBUG - printf("neck NOT exists, botRightIndex=%i\n", botRightIndex); -#endif - - tempBotVertex = botVertex; - nextTopVertex = botVertex; - botLeftIndex = leftChain->getNumElements()-1; - botRightIndex = rightChain->getNumElements()-1; - } - else /*neck exists*/ - { -#ifdef MYDEBUG - printf("neck exists\n"); -#endif - - /* - findNeck(leftChain, botLeftIndex, - rightChain, botRightIndex, - neckLeftIndex, - neckRightIndex); - */ -#ifdef MYDEBUG -printf("neck is found, neckLeftIndex=%i, neckRightIndex=%i\n", neckLeftIndex, neckRightIndex); -glBegin(GL_LINES); -glVertex2fv(leftChain->getVertex(neckLeftIndex)); -glVertex2fv(rightChain->getVertex(neckRightIndex)); -glEnd(); -#endif - - if(leftChain->getVertex(neckLeftIndex)[1] <= rightChain->getVertex(neckRightIndex)[1]) - { - tempBotVertex = leftChain->getVertex(neckLeftIndex); - botLeftIndex = neckLeftIndex-1; - botRightIndex = neckRightIndex; - nextTopVertex = rightChain->getVertex(neckRightIndex); - nextLeftStartIndex = neckLeftIndex; - nextRightStartIndex = neckRightIndex+1; - } - else - { - tempBotVertex = rightChain->getVertex(neckRightIndex); - botLeftIndex = neckLeftIndex; - botRightIndex = neckRightIndex-1; - nextTopVertex = leftChain->getVertex(neckLeftIndex); - nextLeftStartIndex = neckLeftIndex+1; - nextRightStartIndex = neckRightIndex; - } - } - - findUpCorners(topVertex, - leftChain, - leftStartIndex, botLeftIndex, - rightChain, - rightStartIndex, botRightIndex, - leftGridChain->get_v_value(index1), - leftGridChain->get_u_value(index1), - rightGridChain->get_u_value(index1), - up_leftCornerWhere, - up_leftCornerIndex, - up_rightCornerWhere, - up_rightCornerIndex); - - findDownCorners(tempBotVertex, - leftChain, - leftStartIndex, botLeftIndex, - rightChain, - rightStartIndex, botRightIndex, - leftGridChain->get_v_value(index2), - leftGridChain->get_u_value(index2), - rightGridChain->get_u_value(index2), - down_leftCornerWhere, - down_leftCornerIndex, - down_rightCornerWhere, - down_rightCornerIndex); -#ifdef MYDEBUG - printf("find corners done, down_leftwhere=%i, down_righwhere=%i,\n",down_leftCornerWhere, down_rightCornerWhere ); - printf("find corners done, up_leftwhere=%i, up_righwhere=%i,\n",up_leftCornerWhere, up_rightCornerWhere ); - printf("find corners done, up_leftindex=%i, up_righindex=%i,\n",up_leftCornerIndex, up_rightCornerIndex ); - printf("find corners done, down_leftindex=%i, down_righindex=%i,\n",down_leftCornerIndex, down_rightCornerIndex ); -#endif - -/* - drawCorners(topVertex, - tempBotVertex, - leftChain, - rightChain, - leftGridChain, - rightGridChain, - index1, - index2, - up_leftCornerWhere, - up_leftCornerIndex, - up_rightCornerWhere, - up_rightCornerIndex, - down_leftCornerWhere, - down_leftCornerIndex, - down_rightCornerWhere, - down_rightCornerIndex); -*/ - - - sampleConnectedComp(topVertex, tempBotVertex, - leftChain, - leftStartIndex, botLeftIndex, - rightChain, - rightStartIndex, botRightIndex, - leftGridChain, - rightGridChain, - index1, index2, - up_leftCornerWhere, - up_leftCornerIndex, - up_rightCornerWhere, - up_rightCornerIndex, - down_leftCornerWhere, - down_leftCornerIndex, - down_rightCornerWhere, - down_rightCornerIndex, - pStream, - rbArray - ); - - /*recursion*/ - - sampleMonoPolyRec( - nextTopVertex, - botVertex, - leftChain, - nextLeftStartIndex, - rightChain, - nextRightStartIndex, - leftGridChain, - rightGridChain, - index2+1, - pStream, rbArray); - - - } - -} - -void sampleLeftStrip(vertexArray* leftChain, - Int topLeftIndex, - Int botLeftIndex, - gridBoundaryChain* leftGridChain, - Int leftGridChainStartIndex, - Int leftGridChainEndIndex, - primStream* pStream - ) -{ - assert(leftChain->getVertex(topLeftIndex)[1] > leftGridChain->get_v_value(leftGridChainStartIndex)); - assert(leftChain->getVertex(topLeftIndex+1)[1] <= leftGridChain->get_v_value(leftGridChainStartIndex)); - assert(leftChain->getVertex(botLeftIndex)[1] <= leftGridChain->get_v_value(leftGridChainEndIndex)); - assert(leftChain->getVertex(botLeftIndex-1)[1] > leftGridChain->get_v_value(leftGridChainEndIndex)); - - /* - *(1)find the last grid line which doesn'; pass below - * this first edge, sample this region: one trim edge and - * possily multiple grid lines. - */ - Real *upperVert, *lowerVert; /*the end points of the first trim edge*/ - upperVert = leftChain->getVertex(topLeftIndex); - lowerVert = leftChain->getVertex(topLeftIndex+1); - - Int index = leftGridChainStartIndex; - while(leftGridChain->get_v_value(index) >= lowerVert[1]){ - index++; - if(index > leftGridChainEndIndex) - break; - } - index--; - - sampleLeftSingleTrimEdgeRegion(upperVert, lowerVert, - leftGridChain, - leftGridChainStartIndex, - index, - pStream); - sampleLeftStripRec(leftChain, topLeftIndex+1, botLeftIndex, - leftGridChain, index, leftGridChainEndIndex, - pStream); - -} - -void sampleLeftStripRec(vertexArray* leftChain, - Int topLeftIndex, - Int botLeftIndex, - gridBoundaryChain* leftGridChain, - Int leftGridChainStartIndex, - Int leftGridChainEndIndex, - primStream* pStream - ) -{ - /*now top left trim vertex is below the top grid line. - */ - /*stop condition: if topLeftIndex >= botLeftIndex, then stop. - */ - if(topLeftIndex >= botLeftIndex) - return; - - /*find the last trim vertex which is above the second top grid line: - * index1. - *and sampleLeftOneGridStep(leftchain, topLeftIndex, index1, leftGridChain, - * leftGridChainStartIndex). - * index1 could be equal to topLeftIndex. - */ - Real secondGridChainV = leftGridChain->get_v_value(leftGridChainStartIndex+1); - assert(leftGridChainStartIndex < leftGridChainEndIndex); - Int index1 = topLeftIndex; - while(leftChain->getVertex(index1)[1] > secondGridChainV) - index1++; - index1--; - - sampleLeftOneGridStep(leftChain, topLeftIndex, index1, leftGridChain, leftGridChainStartIndex, pStream); - - - /* - * Let the next trim vertex be nextTrimVertIndex (which should be - * below the second grid line). - * Find the last grid line index2 which is above nextTrimVert. - * sampleLeftSingleTrimEdgeRegion(uppervert[2], lowervert[2], - * leftGridChain, leftGridChainStartIndex+1, index2). - */ - Real *uppervert, *lowervert; - uppervert = leftChain->getVertex(index1); - lowervert = leftChain->getVertex(index1+1); - Int index2 = leftGridChainStartIndex+1; - - while(leftGridChain->get_v_value(index2) >= lowervert[1]) - { - index2++; - if(index2 > leftGridChainEndIndex) - break; - } - index2--; - sampleLeftSingleTrimEdgeRegion(uppervert, lowervert, leftGridChain, leftGridChainStartIndex+1, index2, pStream); - - /* sampleLeftStripRec(leftChain, - nextTrimVertIndex, - botLeftIndex, - leftGridChain, - index2, - leftGridChainEndIndex - ) - * - */ - sampleLeftStripRec(leftChain, index1+1, botLeftIndex, leftGridChain, index2, leftGridChainEndIndex, pStream); - -} - - -/***************begin RecF***********************/ -/* the gridlines from leftGridChainStartIndex to - * leftGridChainEndIndex are assumed to form a - * connected component. - * the trim vertex of topLeftIndex is assumed to - * be below the first gridline, and the tim vertex - * of botLeftIndex is assumed to be above the last - * grid line. - * If botLeftIndex < topLeftIndex, then no connected componeent exists, and this funcion returns without - * outputing any triangles. - * Otherwise botLeftIndex >= topLeftIndex, there is at least one triangle to output. - */ -void sampleLeftStripRecF(vertexArray* leftChain, - Int topLeftIndex, - Int botLeftIndex, - gridBoundaryChain* leftGridChain, - Int leftGridChainStartIndex, - Int leftGridChainEndIndex, - primStream* pStream - ) -{ - /*now top left trim vertex is below the top grid line. - */ - /*stop condition: if topLeftIndex > botLeftIndex, then stop. - */ - if(topLeftIndex > botLeftIndex) - return; - - /*if there is only one grid Line, return.*/ - - if(leftGridChainStartIndex>=leftGridChainEndIndex) - return; - - - assert(leftChain->getVertex(topLeftIndex)[1] <= leftGridChain->get_v_value(leftGridChainStartIndex) && - leftChain->getVertex(botLeftIndex)[1] >= leftGridChain->get_v_value(leftGridChainEndIndex)); - - /*firs find the first trim vertex which is below or equal to the second top grid line: - * index1. - */ - Real secondGridChainV = leftGridChain->get_v_value(leftGridChainStartIndex+1); - - - Int index1 = topLeftIndex; - - while(leftChain->getVertex(index1)[1] > secondGridChainV){ - index1++; - if(index1>botLeftIndex) - break; - } - - /*now leftChain->getVertex(index-1)[1] > secondGridChainV and - * leftChain->getVertex(index)[1] <= secondGridChainV - *If equality holds, then we should include the vertex index1, otherwise we include only index1-1, to - *perform sampleOneGridStep. - */ - if(index1>botLeftIndex) - index1--; - else if(leftChain->getVertex(index1)[1] < secondGridChainV) - index1--; - - /*now we have leftChain->getVertex(index1)[1] >= secondGridChainV, and - * leftChain->getVertex(index1+1)[1] <= secondGridChainV - */ - - - sampleLeftOneGridStep(leftChain, topLeftIndex, index1, leftGridChain, leftGridChainStartIndex, pStream); - - - /*if leftChain->getVertex(index1)[1] == secondGridChainV, then we can recursively do the rest. - */ - if(leftChain->getVertex(index1)[1] == secondGridChainV) - { - - sampleLeftStripRecF(leftChain, index1, botLeftIndex,leftGridChain, leftGridChainStartIndex+1, leftGridChainEndIndex, pStream); - } - else if(index1 < botLeftIndex) - { - - /* Otherwise, we have leftChain->getVertex(index1)[1] > secondGridChainV, - * let the next trim vertex be nextTrimVertIndex (which should be strictly - * below the second grid line). - * Find the last grid line index2 which is above nextTrimVert. - * sampleLeftSingleTrimEdgeRegion(uppervert[2], lowervert[2], - * leftGridChain, leftGridChainStartIndex+1, index2). - */ - Real *uppervert, *lowervert; - uppervert = leftChain->getVertex(index1); - lowervert = leftChain->getVertex(index1+1); //okay since index1get_v_value(index2) >= lowervert[1]) - { - index2++; - if(index2 > leftGridChainEndIndex) - break; - } - index2--; - - - sampleLeftSingleTrimEdgeRegion(uppervert, lowervert, leftGridChain, leftGridChainStartIndex+1, index2, pStream); - - /*recursion*/ - - sampleLeftStripRecF(leftChain, index1+1, botLeftIndex, leftGridChain, index2, leftGridChainEndIndex, pStream); - } - -} - -/***************End RecF***********************/ - -/*sample the left area in between one trim edge and multiple grid lines. - * all the grid lines should be in between the two end poins of the - *trim edge. - */ -void sampleLeftSingleTrimEdgeRegion(Real upperVert[2], Real lowerVert[2], - gridBoundaryChain* gridChain, - Int beginIndex, - Int endIndex, - primStream* pStream) -{ - Int i,j,k; - - vertexArray vArray(endIndex-beginIndex+1); - vArray.appendVertex(gridChain->get_vertex(beginIndex)); - - for(k=1, i=beginIndex+1; i<=endIndex; i++, k++) - { - vArray.appendVertex(gridChain->get_vertex(i)); - - /*output the fan of the grid points of the (i)th and (i-1)th grid line. - */ - if(gridChain->getUlineIndex(i) < gridChain->getUlineIndex(i-1)) - { - pStream->begin(); - pStream->insert(gridChain->get_vertex(i-1)); - for(j=gridChain->getUlineIndex(i); j<= gridChain->getUlineIndex(i-1); j++) - pStream->insert(gridChain->getGrid()->get_u_value(j), gridChain->get_v_value(i)); - pStream->end(PRIMITIVE_STREAM_FAN); - } - else if(gridChain->getUlineIndex(i) > gridChain->getUlineIndex(i-1)) - { - pStream->begin(); - pStream->insert(gridChain->get_vertex(i)); - for(j=gridChain->getUlineIndex(i); j>= gridChain->getUlineIndex(i-1); j--) - pStream->insert(gridChain->getGrid()->get_u_value(j), gridChain->get_v_value(i-1)); - pStream->end(PRIMITIVE_STREAM_FAN); - } - /*otherwisem, the two are equal, so there is no fan to outout*/ - } - - monoTriangulation2(upperVert, lowerVert, &vArray, 0, endIndex-beginIndex, - 0, /*decreasing chain*/ - pStream); -} - -/*return i, such that from begin to i-1 the chain is strictly u-monotone. - */ -Int findIncreaseChainFromBegin(vertexArray* chain, Int begin ,Int end) -{ - Int i=begin; - Real prevU = chain->getVertex(i)[0]; - Real thisU; - for(i=begin+1; i<=end; i++){ - thisU = chain->getVertex(i)[0]; - - if(prevU < thisU){ - prevU = thisU; - } - else - break; - } - return i; -} - -/*check whether there is a vertex whose v value is strictly - *inbetween vup vbelow - *if no middle exists return -1, else return the idnex. - */ -Int checkMiddle(vertexArray* chain, Int begin, Int end, - Real vup, Real vbelow) -{ - Int i; - for(i=begin; i<=end; i++) - { - if(chain->getVertex(i)[1] < vup && chain->getVertex(i)[1]>vbelow) - return i; - } - return -1; -} - -/*the degenerat case of sampleLeftOneGridStep*/ -void sampleLeftOneGridStepNoMiddle(vertexArray* leftChain, - Int beginLeftIndex, - Int endLeftIndex, - gridBoundaryChain* leftGridChain, - Int leftGridChainStartIndex, - primStream* pStream) -{ - /*since there is no middle, there is at most one point which is on the - *second grid line, there could be multiple points on the first (top) - *grid line. - */ - - leftGridChain->leftEndFan(leftGridChainStartIndex+1, pStream); - - monoTriangulation2(leftGridChain->get_vertex(leftGridChainStartIndex), - leftGridChain->get_vertex(leftGridChainStartIndex+1), - leftChain, - beginLeftIndex, - endLeftIndex, - 1, //is increase chain. - pStream); -} - - - -/*sampling the left area in between two grid lines. - */ -void sampleLeftOneGridStep(vertexArray* leftChain, - Int beginLeftIndex, - Int endLeftIndex, - gridBoundaryChain* leftGridChain, - Int leftGridChainStartIndex, - primStream* pStream - ) -{ - if(checkMiddle(leftChain, beginLeftIndex, endLeftIndex, - leftGridChain->get_v_value(leftGridChainStartIndex), - leftGridChain->get_v_value(leftGridChainStartIndex+1))<0) - - { - - sampleLeftOneGridStepNoMiddle(leftChain, beginLeftIndex, endLeftIndex, leftGridChain, leftGridChainStartIndex, pStream); - return; - } - - //copy into a polygon - { - directedLine* poly = NULL; - sampledLine* sline; - directedLine* dline; - gridWrap* grid = leftGridChain->getGrid(); - Real vert1[2]; - Real vert2[2]; - Int i; - - Int innerInd = leftGridChain->getInnerIndex(leftGridChainStartIndex+1); - Int upperInd = leftGridChain->getUlineIndex(leftGridChainStartIndex); - Int lowerInd = leftGridChain->getUlineIndex(leftGridChainStartIndex+1); - Real upperV = leftGridChain->get_v_value(leftGridChainStartIndex); - Real lowerV = leftGridChain->get_v_value(leftGridChainStartIndex+1); - - //the upper gridline - vert1[1] = vert2[1] = upperV; - for(i=innerInd; i>upperInd; i--) - { - vert1[0]=grid->get_u_value(i); - vert2[0]=grid->get_u_value(i-1); - sline = new sampledLine(vert1, vert2); - dline = new directedLine(INCREASING, sline); - if(poly == NULL) - poly = dline; - else - poly->insert(dline); - } - - //the edge connecting upper grid with left chain - vert1[0] = grid->get_u_value(upperInd); - vert1[1] = upperV; - sline = new sampledLine(vert1, leftChain->getVertex(beginLeftIndex)); - dline = new directedLine(INCREASING, sline); - if(poly == NULL) - poly = dline; - else - poly->insert(dline); - - //the left chain - for(i=beginLeftIndex; igetVertex(i), leftChain->getVertex(i+1)); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - } - - //the edge connecting left chain with lower gridline - vert2[0] = grid->get_u_value(lowerInd); - vert2[1] = lowerV; - sline = new sampledLine(leftChain->getVertex(endLeftIndex), vert2); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - - //the lower grid line - vert1[1] = vert2[1] = lowerV; - for(i=lowerInd; iget_u_value(i); - vert2[0] = grid->get_u_value(i+1); - sline = new sampledLine(vert1, vert2); - dline = new directedLine(INCREASING, sline); - poly->insert(dline); - } - - //the vertical grid line segement - vert1[0]=vert2[0] = grid->get_u_value(innerInd); - vert2[1]=upperV; - vert1[1]=lowerV; - sline=new sampledLine(vert1, vert2); - dline=new directedLine(INCREASING, sline); - poly->insert(dline); - monoTriangulationOpt(poly, pStream); - //cleanup - poly->deleteSinglePolygonWithSline(); - return; - } - -#if 0 - Int i; - if(1/*leftGridChain->getUlineIndex(leftGridChainStartIndex) >= - leftGridChain->getUlineIndex(leftGridChainStartIndex+1)*/ - ) /*the second grid line is beyond the first one to the left*/ - { - /*find the maximal U-monotone chain - * of endLeftIndex, endLeftIndex-1, ..., - */ - i=endLeftIndex; - Real prevU = leftChain->getVertex(i)[0]; - for(i=endLeftIndex-1; i>=beginLeftIndex; i--){ - Real thisU = leftChain->getVertex(i)[0]; - if( prevU < thisU){ - prevU = thisU; - } - else - break; - } - /*from endLeftIndex to i+1 is strictly U- monotone */ - /*if i+1==endLeftIndex and the vertex and leftchain is on the second gridline, then - *we should use 2 vertices on the leftchain. If we only use one (endLeftIndex), then we - *we would output degenerate triangles - */ - if(i+1 == endLeftIndex && leftChain->getVertex(endLeftIndex)[1] == leftGridChain->get_v_value(1+leftGridChainStartIndex)) - i--; - - Int j = beginLeftIndex/*endLeftIndex*/+1; - - - if(leftGridChain->getInnerIndex(leftGridChainStartIndex+1) > leftGridChain->getUlineIndex(leftGridChainStartIndex)) - { - j = findIncreaseChainFromBegin(leftChain, beginLeftIndex, i+1/*endLeftIndex*/); - - Int temp = beginLeftIndex; - /*now from begin to j-1 is strictly u-monotone*/ - /*if j-1 is on the first grid line, then we want to skip to the vertex which is strictly - *below the grid line. This vertexmust exist since there is a 'corner turn' inbetween the two grid lines - */ - if(j-1 == beginLeftIndex) - { - while(leftChain->getVertex(j-1)[1] == leftGridChain->get_v_value(leftGridChainStartIndex)) - j++; - - Real vert[2]; - vert[0] = leftGridChain->get_u_value(leftGridChainStartIndex); - vert[1] = leftGridChain->get_v_value(leftGridChainStartIndex); - - monoTriangulation2( - vert/*leftChain->getVertex(beginLeftIndex)*/, - leftChain->getVertex(j-1), - leftChain, - beginLeftIndex, - j-2, - 1, - pStream //increase chain - ); - - temp = j-1; - } - - stripOfFanLeft(leftChain, j-1, temp/*beginLeftIndex*/, leftGridChain->getGrid(), - leftGridChain->getVlineIndex(leftGridChainStartIndex), - leftGridChain->getUlineIndex(leftGridChainStartIndex), - leftGridChain->getInnerIndex(leftGridChainStartIndex+1), - pStream, - 1 /*the grid line is above the trim line*/ - ); - } - - stripOfFanLeft(leftChain, endLeftIndex, i+1, leftGridChain->getGrid(), - leftGridChain->getVlineIndex(leftGridChainStartIndex+1), - leftGridChain->getUlineIndex(leftGridChainStartIndex+1), - leftGridChain->getInnerIndex(leftGridChainStartIndex+1), - pStream, - 0 /*the grid line is below the trim lines*/ - ); - - /*monotone triangulate the remaining left chain togther with the - *two vertices on the two grid v-lines. - */ - Real vert[2][2]; - vert[0][0]=vert[1][0] = leftGridChain->getInner_u_value(leftGridChainStartIndex+1); - vert[0][1] = leftGridChain->get_v_value(leftGridChainStartIndex); - vert[1][1] = leftGridChain->get_v_value(leftGridChainStartIndex+1); - -// vertexArray right(vert, 2); - - monoTriangulation2( - &vert[0][0], /*top vertex */ - &vert[1][0], /*bottom vertex*/ - leftChain, - /*beginLeftIndex*/j-1, - i+1, - 1, /*an increasing chain*/ - pStream); - } - else /*the second one is shorter than the first one to the left*/ - { - /*find the maximal U-monotone chain of beginLeftIndex, beginLeftIndex+1,..., - */ - i=beginLeftIndex; - Real prevU = leftChain->getVertex(i)[0]; - for(i=beginLeftIndex+1; i<=endLeftIndex; i++){ - Real thisU = leftChain->getVertex(i)[0]; - - if(prevU < thisU){ - prevU = thisU; - } - else - break; - } - /*from beginLeftIndex to i-1 is strictly U-monotone*/ - - - stripOfFanLeft(leftChain, i-1, beginLeftIndex, leftGridChain->getGrid(), - leftGridChain->getVlineIndex(leftGridChainStartIndex), - leftGridChain->getUlineIndex(leftGridChainStartIndex), - leftGridChain->getUlineIndex(leftGridChainStartIndex+1), - pStream, - 1 /*the grid line is above the trim lines*/ - ); - /*monotone triangulate the remaining left chain together with the - *two vertices on the two grid v-lines. - */ - Real vert[2][2]; - vert[0][0]=vert[1][0] = leftGridChain->get_u_value(leftGridChainStartIndex+1); - vert[0][1] = leftGridChain->get_v_value(leftGridChainStartIndex); - vert[1][1] = leftGridChain->get_v_value(leftGridChainStartIndex+1); - - vertexArray right(vert, 2); - - monoTriangulation2( - &vert[0][0], //top vertex - &vert[1][0], //bottom vertex - leftChain, - i-1, - endLeftIndex, - 1, /*an increase chain*/ - pStream); - - } -#endif -} - -/*n_upper>=1 - *n_lower>=1 - */ -void triangulateXYMono(Int n_upper, Real upperVerts[][2], - Int n_lower, Real lowerVerts[][2], - primStream* pStream) -{ - Int i,j,k,l; - Real* leftMostV; - - assert(n_upper>=1 && n_lower>=1); - if(upperVerts[0][0] <= lowerVerts[0][0]) - { - i=1; - j=0; - leftMostV = upperVerts[0]; - } - else - { - i=0; - j=1; - leftMostV = lowerVerts[0]; - } - - while(1) - { - if(i >= n_upper) /*case1: no more in upper*/ - { - - if(jbegin(); - pStream->insert(leftMostV); - while(jinsert(lowerVerts[j]); - j++; - } - pStream->end(PRIMITIVE_STREAM_FAN); - } - - break; - } - else if(j>= n_lower) /*case2: no more in lower*/ - { - - if(ibegin(); - pStream->insert(leftMostV); - - for(k=n_upper-1; k>=i; k--) - pStream->insert(upperVerts[k]); - - pStream->end(PRIMITIVE_STREAM_FAN); - } - - break; - } - else /* case3: neither is empty, plus the leftMostV, there is at least one triangle to output*/ - { - - if(upperVerts[i][0] <= lowerVerts[j][0]) - { - pStream->begin(); - pStream->insert(lowerVerts[j]); /*the origin of this fan*/ - - /*find the last k>=i such that - *upperverts[k][0] <= lowerverts[j][0] - */ - k=i; - while(k lowerVerts[j][0]) - break; - k++; - } - k--; - for(l=k; l>=i; l--)/*the reverse is for two-face lighting*/ - { - pStream->insert(upperVerts[l]); - } - pStream->insert(leftMostV); - - pStream->end(PRIMITIVE_STREAM_FAN); - //update i for next loop - i = k+1; - leftMostV = upperVerts[k]; - - } - else /*upperVerts[i][0] > lowerVerts[j][0]*/ - { - pStream->begin(); - pStream->insert(upperVerts[i]);/*the origion of this fan*/ - pStream->insert(leftMostV); - /*find the last k>=j such that - *lowerverts[k][0] < upperverts[i][0]*/ - k=j; - while(k< n_lower) - { - if(lowerVerts[k][0] >= upperVerts[i][0]) - break; - pStream->insert(lowerVerts[k]); - k++; - } - pStream->end(PRIMITIVE_STREAM_FAN); - j=k; - leftMostV = lowerVerts[j-1]; - } - } - } -} - - -void stripOfFanLeft(vertexArray* leftChain, - Int largeIndex, - Int smallIndex, - gridWrap* grid, - Int vlineIndex, - Int ulineSmallIndex, - Int ulineLargeIndex, - primStream* pStream, - Int gridLineUp /*1 if the grid line is above the trim lines*/ - ) -{ - assert(largeIndex >= smallIndex); - - Real grid_v_value; - grid_v_value = grid->get_v_value(vlineIndex); - - Real2* trimVerts=(Real2*) malloc(sizeof(Real2)* (largeIndex-smallIndex+1)); - assert(trimVerts); - - - Real2* gridVerts=(Real2*) malloc(sizeof(Real2)* (ulineLargeIndex-ulineSmallIndex+1)); - assert(gridVerts); - - Int k,i; - if(gridLineUp) /*trim line is below grid line, so trim vertices are going right when index increases*/ - for(k=0, i=smallIndex; i<=largeIndex; i++, k++) - { - trimVerts[k][0] = leftChain->getVertex(i)[0]; - trimVerts[k][1] = leftChain->getVertex(i)[1]; - } - else - for(k=0, i=largeIndex; i>=smallIndex; i--, k++) - { - trimVerts[k][0] = leftChain->getVertex(i)[0]; - trimVerts[k][1] = leftChain->getVertex(i)[1]; - } - - for(k=0, i=ulineSmallIndex; i<= ulineLargeIndex; i++, k++) - { - gridVerts[k][0] = grid->get_u_value(i); - gridVerts[k][1] = grid_v_value; - } - - if(gridLineUp) - triangulateXYMono( - ulineLargeIndex-ulineSmallIndex+1, gridVerts, - largeIndex-smallIndex+1, trimVerts, - pStream); - else - triangulateXYMono(largeIndex-smallIndex+1, trimVerts, - ulineLargeIndex-ulineSmallIndex+1, gridVerts, - pStream); - free(trimVerts); - free(gridVerts); -} - - - - - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleMonoPoly.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleMonoPoly.h deleted file mode 100644 index 4a023bd7a..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleMonoPoly.h +++ /dev/null @@ -1,191 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampleMonoPoly.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _SAMPLEMONOPOLY_H -#define _SAMPLEMONOPOLY_H - -#include "monoTriangulation.h" -#include "gridWrap.h" -#include "rectBlock.h" - - -void triangulateXYMono(Int n_upper, Real upperVerts[][2], - Int n_lower, Real lowerVerts[][2], - primStream* pStream); - -void stripOfFanLeft(vertexArray* leftChain, - Int largeIndex, - Int smallIndex, - gridWrap* grid, - Int vlineIndex, - Int ulineSmallIndex, - Int ulineLargeIndex, - primStream* pStream, - Int gridLineUp - ); -void sampleLeftOneGridStep(vertexArray* leftChain, - Int beginLeftIndex, - Int endLeftIndex, - gridBoundaryChain* leftGridChain, - Int leftGridChainStartIndex, - primStream* pStream - ); - -void sampleLeftSingleTrimEdgeRegion(Real upperVert[2], Real lowerVert[2], - gridBoundaryChain* gridChain, - Int beginIndex, - Int endIndex, - primStream* pStream); - -void sampleLeftStripRec(vertexArray* leftChain, - Int topLeftIndex, - Int botLeftIndex, - gridBoundaryChain* leftGridChain, - Int leftGridChainStartIndex, - Int leftGridChainEndIndex, - primStream* pStream - ); - -void sampleLeftStrip(vertexArray* leftChain, - Int topLeftIndex, - Int botLeftIndex, - gridBoundaryChain* leftGridChain, - Int leftGridChainStartIndex, - Int leftGridChainEndIndex, - primStream* pStream - ); - -void findLeftGridIndices(directedLine* topEdge, Int firstGridIndex, Int lastGridIndex, gridWrap* grid, Int* ret_indices, Int* ret_inner); - -void findRightGridIndices(directedLine* topEdge, Int firstGridIndex, Int lastGridIndex, gridWrap* grid, Int* ret_indices, Int* ret_inner); - -void sampleMonoPoly(directedLine* polygon, gridWrap* grid, Int ulinear, Int vlinear, primStream *pStream, rectBlockArray* rbArray); - -void sampleMonoPolyRec( - Real* topVertex, - Real* botVertex, - vertexArray* leftChain, - Int leftStartIndex, - vertexArray* rightChain, - Int rightStartIndex, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridStartIndex, - primStream* pStream, - rectBlockArray* rbArray - ); - -void sampleLeftStripRecF(vertexArray* leftChain, - Int topLeftIndex, - Int botLeftIndex, - gridBoundaryChain* leftGridChain, - Int leftGridChainStartIndex, - Int leftGridChainEndIndex, - primStream* pStream - ); - -void findUpCorners(Real *topVertex, - vertexArray *leftChain, - Int leftChainStartIndex, Int leftChainEndIndex, - vertexArray *rightChain, - Int rightChainStartIndex, Int rightChainEndIndex, - Real v, - Real uleft, - Real uright, - Int& ret_leftCornerWhere, - Int& ret_leftCornerIndex, - Int& ret_rightCornerWhere, - Int& ret_rightCornerIndex - ); -void findDownCorners(Real *botVertex, - vertexArray *leftChain, Int leftChainStartIndex, Int leftChainEndIndex, - vertexArray *rightChain, Int rightChainStartIndex, Int rightChainEndIndex, - Real v, - Real uleft, - Real uright, - Int& ret_leftCornerWhere, - Int& ret_leftCornerIndex, - Int& ret_rightCornerWhere, - Int& ret_rightCornerIndex - ); -void findNeck(vertexArray *leftChain, Int botLeftIndex, - vertexArray *rightChain, Int botRightIndex, - Int& leftLastIndex, /*left point of the neck*/ - Int& rightLastIndex /*right point of the neck*/ - ); - -Int findNeckF(vertexArray *leftChain, Int botLeftIndex, - vertexArray *rightChain, Int botRightIndex, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridStartIndex, - Int& neckLeft, - Int& neckRight); - -void findTopAndBot(directedLine* polygon, - directedLine*& topV, - directedLine*& botV); -void findGridChains(directedLine* top, directedLine* bot, - gridWrap* grid, - gridBoundaryChain*& leftGridChain, - gridBoundaryChain*& rightGridChain); -void toVertexArrays(directedLine* topV, directedLine* botV, vertexArray& leftChain, vertexArray& rightChain); - -void drawCorners( - Real* topV, Real* botV, - vertexArray* leftChain, - vertexArray* rightChain, - gridBoundaryChain* leftGridChain, - gridBoundaryChain* rightGridChain, - Int gridIndex1, - Int gridIndex2, - Int leftCornerWhere, - Int leftCornerIndex, - Int rightCornerWhere, - Int rightCornerIndex, - Int bot_leftCornerWhere, - Int bot_leftCornerIndex, - Int bot_rightCornerWhere, - Int bot_rightCornerIndex); - -Int checkMiddle(vertexArray* chain, Int begin, Int end, - Real vup, Real vbelow); - -#endif - diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampledLine.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampledLine.cc deleted file mode 100644 index e35ba22dd..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampledLine.cc +++ /dev/null @@ -1,183 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/04/23 18:42:56 $ $Revision: 1.2 $ -*/ -/* $XFree86$ */ - -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampledLine.cc,v 1.2 2004/04/23 18:42:56 eich Exp $ -*/ - -#include -#include -#include //for fabs() -#include "glimports.h" -#include "zlassert.h" -#include "sampledLine.h" - -void sampledLine::setPoint(Int i, Real p[2]) -{ - points[i][0]=p[0]; - points[i][1]=p[1]; -} - - -/*insert this single line in front of the oldList*/ -sampledLine* sampledLine::insert(sampledLine *oldList) -{ - next = oldList; - return this; -} - -void sampledLine::deleteList() -{ - sampledLine *temp, *tempNext; - for(temp = this; temp != NULL; temp = tempNext) - { - tempNext = temp->next; - delete temp; - } -} - - -/*space of points[][2] is allocated*/ -sampledLine::sampledLine(Int n_points) -{ - npoints = n_points; - points = (Real2*) malloc(sizeof(Real2) * n_points); - assert(points); - next = NULL; -} - -/*space of points[][2] is allocated and - *points are copied - */ -sampledLine::sampledLine(Int n_points, Real2 pts[]) -{ - int i; - npoints = n_points; - points = (Real2*) malloc(sizeof(Real2) * n_points); - assert(points); - for(i=0; i nv) n = nu; - else - n = nv; - if(n<1) - n = 1; - //du dv could be negative - Real du = (points[npoints-1][0] - points[0][0])/n; - Real dv = (points[npoints-1][1] - points[0][1])/n; - Real2 *temp = (Real2*) malloc(sizeof(Real2) * (n+1)); - assert(temp); - - Real u,v; - for(i=0, u=points[0][0], v=points[0][1]; inext) - { - temp->tessellate(u_reso, v_reso); - } -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampledLine.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampledLine.h deleted file mode 100644 index 5e46ee797..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampledLine.h +++ /dev/null @@ -1,78 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/sampledLine.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _SAMPLEDLINE_H -#define _SAMPLEDLINE_H - -#include "definitions.h" - -class sampledLine{ - Int npoints; - Real2 *points; - -public: - sampledLine(Int n_points); - sampledLine(Int n_points, Real pts[][2]); - sampledLine(Real pt1[2], Real pt2[2]); - sampledLine(); //special, careful about memory - ~sampledLine(); - - void init(Int n_points, Real2 *pts);//special, careful about memory - - void setPoint(Int i, Real p[2]) ; - - sampledLine* insert(sampledLine *nline); - void deleteList(); - - Int get_npoints() {return npoints;} - Real2* get_points() {return points;} - - //u_reso is number of segments (may not be integer) per unit u - void tessellate(Real u_reso, Real v_reso);//n segments - void tessellateAll(Real u_reso, Real v_reso); - - void print(); - - sampledLine* next; -}; - - - - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/searchTree.cc b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/searchTree.cc deleted file mode 100644 index ec5f6c4d4..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/searchTree.cc +++ /dev/null @@ -1,284 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/searchTree.cc,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#include -#include -#include "zlassert.h" - -#include "searchTree.h" - -#define max(a,b) ((a>b)? a:b) - -treeNode* TreeNodeMake(void *key) -{ - treeNode *ret = (treeNode*) malloc(sizeof(treeNode)); - assert(ret); - ret->key = key; - ret->parent = NULL; - ret->left = NULL; - ret->right = NULL; - return ret; -} - -void TreeNodeDeleteSingleNode(treeNode* node) -{ - free(node); -} - -void TreeNodeDeleteWholeTree(treeNode* node) -{ - if(node == NULL) return; - TreeNodeDeleteWholeTree(node->left); - TreeNodeDeleteWholeTree(node->right); - TreeNodeDeleteSingleNode(node); -} - -void TreeNodePrint(treeNode* node, - void (*keyPrint) (void*)) -{ - if(node ==NULL) return; - TreeNodePrint(node->left, keyPrint); - keyPrint(node->key); - TreeNodePrint(node->right, keyPrint); -} - -int TreeNodeDepth(treeNode* root) -{ - if(root == NULL) return 0; - else{ - int leftdepth = TreeNodeDepth(root->left); - int rightdepth = TreeNodeDepth(root->right); - return 1 + max(leftdepth, rightdepth); - } -} - -/*return the node with the key. - *NULL is returned if not found - */ -treeNode* TreeNodeFind(treeNode* tree, void* key, - int (*compkey) (void*, void*)) -{ - if(tree == NULL) - return NULL; - if(key == tree->key) - return tree; - else if(compkey(key, tree->key) < 0) - return TreeNodeFind(tree->left, key, compkey); - else - return TreeNodeFind(tree->right, key, compkey); -} - - -treeNode* TreeNodeInsert(treeNode* root, treeNode* newnode, - int (*compkey) (void *, void *)) -{ - treeNode *y = NULL; - treeNode *x = root; - /*going down the tree from the root. - *x traces the path, y is the parent of x. - */ - while (x != NULL){ - y = x; - if(compkey(newnode->key,x->key) < 0) /*if newnode < x*/ - x = x->left; - else - x = x->right; - } - - /*now y has the property that - * if newnode < y, then y->left is NULL - * if newnode > y, then y->right is NULL. - *So we want to isnert newnode to be the child of y - */ - newnode->parent = y; - if(y == NULL) - return newnode; - else if( compkey(newnode->key, y->key) <0) - { - y->left = newnode; - } - else - { - y->right = newnode; - } - - return root; -} - -treeNode* TreeNodeDeleteSingleNode(treeNode* tree, treeNode* node) -{ - treeNode* y; - treeNode* x; - treeNode* ret; - if(node==NULL) return tree; - - if(node->left == NULL || node->right == NULL) { - - y = node; - if(y->left != NULL) - x = y->left; - else - x = y->right; - - if( x != NULL) - x->parent = y->parent; - - if(y->parent == NULL) /*y is the root which has at most one child x*/ - ret = x; - else /*y is not the root*/ - { - if(y == y->parent->left) - y->parent->left = x; - else - y->parent->right = x; - ret = tree; - } - } - else { /*node has two children*/ - - y = TreeNodeSuccessor(node); - assert(y->left == NULL); - - if(y == node->right) /*y is the right child if node*/ - { - y->parent = node->parent; - y->left = node->left; - node->left->parent = y; - - } - else /*y != node->right*/ - { - x = y->right; - if(x!= NULL) - x->parent = y->parent; - - assert(y->parent != NULL); - if(y == y->parent->left) - y->parent->left = x; - else - y->parent->right = x; - /*move y to the position of node*/ - y->parent = node->parent; - y->left = node->left; - y->right = node->right; - node->left->parent = y; - node->right->parent = y; - } - if(node->parent != NULL) { - if(node->parent->left == node) - node->parent->left = y; - else - node->parent->right = y; - ret = tree; /*the root if the tree doesn't change*/ - } - else /*node->parent is NULL: node is the root*/ - ret = y; - } - - /*finally free the node, and return the new root*/ - TreeNodeDeleteSingleNode(node); - return ret; -} - - -/*the minimum node in the tree rooted by node - */ -treeNode* TreeNodeMinimum(treeNode* node) -{ - treeNode* temp = node; - if(temp == NULL) return NULL; - while(temp->left != NULL) { - temp = temp->left; - } - return temp; -} - -/*the maximum node in the tree rooted by node - */ -treeNode* TreeNodeMaximum(treeNode* node) -{ - treeNode* temp = node; - if(temp == NULL) return NULL; - while(temp->right != NULL) { - temp = temp->right; - } - return temp; -} - -/*return the first node (in sorted order) which is to the right of this node - */ -treeNode* TreeNodeSuccessor(treeNode* node) -{ - if(node == NULL) return NULL; - if(node->right != NULL) - return TreeNodeMinimum(node->right); - else{ /*node->right is NULL*/ - - /*find the first right-ancestor*/ - treeNode *y = node->parent; - treeNode* x = node; - while(y != NULL && x == y->right) /*if y is a left parent of x*/ - { - - x = y; - y = y->parent; - } - return y; - } -} - -/*return the first node (in sorted order) which is to the left of this node - */ -treeNode* TreeNodePredecessor(treeNode* node) -{ - if(node == NULL) return NULL; - if(node->left != NULL) - return TreeNodeMaximum(node->left); - else{ /*node->left is NULL*/ - /*find the first left-ancestor*/ - treeNode *y = node->parent; - treeNode *x = node; - while(y != NULL && x == y->left) /*if y is a right parent of x*/ - { - x = y; - y = y->parent; - } - return y; - } -} diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/searchTree.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/searchTree.h deleted file mode 100644 index a602e9afc..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/searchTree.h +++ /dev/null @@ -1,68 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/searchTree.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -#ifndef _SEARCHTREE_H -#define _SEARCHTREE_H - -typedef struct treeNode{ - void *key; - struct treeNode* parent; - struct treeNode* left; /*children*/ - struct treeNode* right; -} treeNode; - -treeNode* TreeNodeMake(void *key); -void TreeNodeDeleteSingleNode(treeNode* node); -void TreeNodeDeleteWholeTree(treeNode* node); -void TreeNodePrint(treeNode* node, - void (*keyPrint) (void*)); -int TreeNodeDepth(treeNode* root); -treeNode* TreeNodeMinimum(treeNode* node); -treeNode* TreeNodeMaximum(treeNode* node); -treeNode* TreeNodePredecessor(treeNode* node); -treeNode* TreeNodeSuccessor(treeNode* node); -treeNode* TreeNodeFind(treeNode* tree, void* key, - int (*compkey) (void*, void*)); - -treeNode* TreeNodeInsert(treeNode* root, treeNode* newnode, - int (*comp) (void *, void *)); -treeNode* TreeNodeDeleteSingleNode(treeNode* tree, treeNode* node); - - -#endif diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/zlassert.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/zlassert.h deleted file mode 100644 index 1376b90a4..000000000 --- a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/zlassert.h +++ /dev/null @@ -1,41 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -** $Date: 2004/03/14 08:29:11 $ $Revision: 1.1.1.4 $ -*/ -/* -** $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/nurbtess/zlassert.h,v 1.1.1.4 2004/03/14 08:29:11 eich Exp $ -*/ - -/*XXXblythe this file should be deleted*/ -#include -- cgit v1.2.3