diff options
Diffstat (limited to 'src')
38 files changed, 6330 insertions, 0 deletions
diff --git a/src/classes/com/sun/opengl/impl/nurbs/Arc.java b/src/classes/com/sun/opengl/impl/nurbs/Arc.java new file mode 100755 index 000000000..e96aa83f8 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Arc.java @@ -0,0 +1,258 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* +** 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. +*/ + +/** + * Trimming arc + * @author Tomas Hrasky + * + */ +public class Arc { + /** + * Corresponding picewise-linear arc + */ + public PwlArc pwlArc; + + /** + * Arc type + */ + private long type; + + /** + * Arc link in linked list + */ + public Arc link; + + /** + * Previous arc + */ + Arc prev; + + /** + * Next arc + */ + Arc next; + + /** + * Corresponding berizer type arc + */ + private BezierArc bezierArc; + + /** + * Makes new arc at specified side + * + * @param side + * which side doeas this arc form + */ + public Arc(int side) { + bezierArc = null; + pwlArc = null; + type = 0; + setside(side); + // nuid=_nuid + } + + /** + * Sets side the arc is at + * + * @param side + * arc side + */ + private void setside(int side) { + // DONE + clearside(); + type |= side << 8; + } + + /** + * Unsets side + */ + private void clearside() { + // DONE + type &= ~(0x7 << 8); + } + + // this one replaces enum arc_side + /** + * Side not specified + */ + public static final int ARC_NONE = 0; + + /** + * Arc on right + */ + public static final int ARC_RIGHT = 1; + + /** + * Arc on top + */ + public static final int ARC_TOP = 2; + + /** + * Arc on left + */ + public static final int ARC_LEFT = 3; + + /** + * Arc on bottom + */ + public static final int ARC_BOTTOM = 4; + + /** + * Bezier type flag + */ + private static final long BEZIER_TAG = 1 << 13; + + /** + * Arc type flag + */ + private static final long ARC_TAG = 1 << 3; + + /** + * Tail type tag + */ + private static final long TAIL_TAG = 1 << 6; + + /** + * Appends arc to the list + * + * @param jarc + * arc to be append + * @return this + */ + public Arc append(Arc jarc) { + // DONE + if (jarc != null) { + next = jarc.next; + prev = jarc; + next.prev = this; + prev.next = this; + } else { + next = this; + prev = this; + } + + return this; + } + + /** + * Unused + * + * @return true + */ + public boolean check() { + return true; + } + + /** + * Sets bezier type flag + */ + public void setbezier() { + // DONE + type |= BEZIER_TAG; + + } + + /** + * Returns tail of linked list coords + * + * @return tail coords + */ + public float[] tail() { + // DONE + return pwlArc.pts[0].param; + } + + /** + * Returns head of linked list coords + * + * @return head coords + */ + public float[] head() { + // DONE + return next.pwlArc.pts[0].param; + } + + /** + * Returns whether arc is marked with arc_tag + * + * @return is arc marked with arc_tag + */ + public boolean ismarked() { + // DONE + return ((type & ARC_TAG) > 0) ? true : false; + } + + /** + * Cleans arc_tag flag + */ + public void clearmark() { + // DONE + type &= (~ARC_TAG); + } + + /** + * Sets arc_tag flag + */ + public void setmark() { + // DONE + type |= ARC_TAG; + } + + /** + * sets tail tag + */ + public void setitail() { + // DONE + type |= TAIL_TAG; + } + + /** + * Returns whether arc is marked tail + * + * @return is tail + */ + public boolean getitail() { + return false; + } + + /** + * Unsets tail tag + */ + public void clearitail() { + // DONE + type &= (~TAIL_TAG); + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/ArcSdirSorter.java b/src/classes/com/sun/opengl/impl/nurbs/ArcSdirSorter.java new file mode 100755 index 000000000..f8fbe2930 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/ArcSdirSorter.java @@ -0,0 +1,63 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class for sorting list of Arcs + * @author Tomas Hrasky + * + */ +public class ArcSdirSorter { + + /** + * Makes new ArcSdirSorter with Subdivider + * @param subdivider subdivider + */ + public ArcSdirSorter(Subdivider subdivider) { + //TODO + // System.out.println("TODO arcsdirsorter.constructor"); + } + + /** + * Sorts list of arcs + * @param list arc list to be sorted + * @param count size of list + */ + public void qsort(CArrayOfArcs list, int count) { + // TODO + // System.out.println("TODO arcsdirsorter.qsort"); + } + +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/ArcTdirSorter.java b/src/classes/com/sun/opengl/impl/nurbs/ArcTdirSorter.java new file mode 100755 index 000000000..9e9a10b42 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/ArcTdirSorter.java @@ -0,0 +1,60 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class for sorting list of Arcs + * @author Tomas Hrasky + * + */ +public class ArcTdirSorter { + /** + * Makes new ArcSdirSorter with Subdivider + * @param subdivider subdivider + */ + public ArcTdirSorter(Subdivider subdivider) { + // TODO Auto-generated constructor stub + // System.out.println("TODO arcTsorter.konstruktor"); + } + /** + * Sorts list of arcs + * @param list arc list to be sorted + * @param count size of list + */ + public void qsort(CArrayOfArcs list, int count) { + // TODO Auto-generated method stub + // System.out.println("TODO arcTsorter.qsort"); + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/ArcTesselator.java b/src/classes/com/sun/opengl/impl/nurbs/ArcTesselator.java new file mode 100755 index 000000000..496e8b7d6 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/ArcTesselator.java @@ -0,0 +1,90 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class for arc tesselation + * @author Tomas Hrasky + * + */ +public class ArcTesselator { + + /** + * Makes given arc an bezier arc + * @param arc arc to work with + * @param s1 minimum s param + * @param s2 maximum s param + * @param t1 minimum t param + * @param t2 maximum s param + */ + public void bezier(Arc arc, float s1, float s2, float t1, float t2) { + // DONE + TrimVertex[] p = new TrimVertex[2]; + p[0] = new TrimVertex(); + p[1] = new TrimVertex(); + arc.pwlArc = new PwlArc(2, p); + p[0].param[0] = s1; + p[0].param[1] = s2; + p[1].param[0] = t1; + p[1].param[1] = t2; + arc.setbezier(); + } + + /** + * Empty method + * @param newright arc to work with + * @param s first tail + * @param t2 second tail + * @param t1 third tail + * @param f stepsize + */ + public void pwl_right(Arc newright, float s, float t1, float t2, float f) { + // TODO Auto-generated method stub + // System.out.println("TODO arctesselator.pwl_right"); + } + + /** + * Empty method + * @param newright arc to work with + * @param s first tail + * @param t2 second tail + * @param t1 third tail + * @param f stepsize + */ + public void pwl_left(Arc newright, float s, float t2, float t1, float f) { + // TODO Auto-generated method stub + // System.out.println("TODO arctesselator.pwl_left"); + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Backend.java b/src/classes/com/sun/opengl/impl/nurbs/Backend.java new file mode 100755 index 000000000..9467104f5 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Backend.java @@ -0,0 +1,217 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class responsible for rendering + * @author Tomas Hrasky + * + */ +public abstract class Backend { + + /** + * Fill surface + */ + public static final int N_MESHFILL = 0; + + /** + * Draw surface as wire model + */ + public static final int N_MESHLINE = 1; + + /** + * Draw surface with points + */ + public static final int N_MESHPOINT = 2; + + /** + * Object rendering curves + */ + protected CurveEvaluator curveEvaluator; + + /** + * Object rendering surfaces + */ + protected SurfaceEvaluator surfaceEvaluator; + + /** + * Makes new backend + */ + public Backend() { + // curveEvaluator = new OpenGLCurveEvaluator(); + // surfaceEvaluator = new OpenGLSurfaceEvaluator(); + } + + /** + * Begin a curve + */ + public void bgncurv() { + // DONE + curveEvaluator.bgnmap1f(); + + } + + /** + * End a curve + */ + public void endcurv() { + // DONE + curveEvaluator.endmap1f(); + + } + + /** + * Make cuve with given parameters + * @param type curve type + * @param ps control points + * @param stride control points coordinates number + * @param order order of curve + * @param ulo smallest u + * @param uhi highest u + */ + public void curvpts(int type, CArrayOfFloats ps, int stride, int order, + float ulo, float uhi) { + // DONE + curveEvaluator.map1f(type, ulo, uhi, stride, order, ps); + curveEvaluator.enable(type); + } + + /** + * Draw curve + * @param u1 smallest u + * @param u2 highest u + * @param nu number of pieces + */ + public void curvgrid(float u1, float u2, int nu) { + // DONE + curveEvaluator.mapgrid1f(nu, u1, u2); + + } + + /** + * Evaluates curve mesh + * @param from low param + * @param n step + */ + public void curvmesh(int from, int n) { + // DONE + curveEvaluator.mapmesh1f(N_MESHFILL, from, from + n); + } + + /** + * Begin surface + * @param wiretris use triangles + * @param wirequads use quads + */ + public void bgnsurf(int wiretris, int wirequads) { + // DONE + surfaceEvaluator.bgnmap2f(); + + if (wiretris > 0) + surfaceEvaluator.polymode(NurbsConsts.N_MESHLINE); + else + surfaceEvaluator.polymode(NurbsConsts.N_MESHFILL); + } + + /** + * End surface + */ + public void endsurf() { + // DONE + surfaceEvaluator.endmap2f(); + } + + /** + * Empty method + * @param ulo low u param + * @param uhi hig u param + * @param vlo low v param + * @param vhi high v param + */ + public void patch(float ulo, float uhi, float vlo, float vhi) { + // DONE + surfaceEvaluator.domain2f(ulo, uhi, vlo, vhi); + } + + /** + * Draw surface + * @param u0 lowest u + * @param u1 highest u + * @param nu number of pieces in u direction + * @param v0 lowest v + * @param v1 highest v + * @param nv number of pieces in v direction + */ + public void surfgrid(float u0, float u1, int nu, float v0, float v1, int nv) { + // DONE + surfaceEvaluator.mapgrid2f(nu, u0, u1, nv, v0, v1); + + } + + /** + * Evaluates surface mesh + * @param u u param + * @param v v param + * @param n step in u direction + * @param m step in v direction + */ + public void surfmesh(int u, int v, int n, int m) { + // System.out.println("TODO backend.surfmesh wireframequads"); + // TODO wireframequads + surfaceEvaluator.mapmesh2f(NurbsConsts.N_MESHFILL, u, u + n, v, v + m); + } + + /** + * Make surface + * @param type surface type + * @param pts control points + * @param ustride control points coordinates in u direction + * @param vstride control points coordinates in v direction + * @param uorder surface order in u direction + * @param vorder surface order in v direction + * @param ulo lowest u + * @param uhi hightest u + * @param vlo lowest v + * @param vhi hightest v + */ + public void surfpts(int type, CArrayOfFloats pts, int ustride, int vstride, + int uorder, int vorder, float ulo, float uhi, float vlo, float vhi) { + // DONE + surfaceEvaluator.map2f(type, ulo, uhi, ustride, uorder, vlo, vhi, + vstride, vorder, pts); + surfaceEvaluator.enable(type); + + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/BezierArc.java b/src/classes/com/sun/opengl/impl/nurbs/BezierArc.java new file mode 100755 index 000000000..ef4cf0684 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/BezierArc.java @@ -0,0 +1,44 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Empty class + * @author Tomas Hrasky + * + */ +public class BezierArc { + +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Bin.java b/src/classes/com/sun/opengl/impl/nurbs/Bin.java new file mode 100755 index 000000000..0f0806d96 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Bin.java @@ -0,0 +1,155 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class holding trimming arcs + * @author Tomas Hrasky + * + */ +public class Bin { + + /** + * Head of linked list of arcs + */ + private Arc head; + + /** + * Current arc + */ + private Arc current; + + /** + * Indicates whether there are any Arcs in linked list + * @return true if there are any Arcs in linked list + */ + public boolean isnonempty() { + // DONE + return this.head != null ? true : false; + } + + /** + * Adds and arc to linked list + * @param jarc added arc + */ + public void addarc(Arc jarc) { + // DONE + // if (head == null) + // head = jarc; + // else { + jarc.link = head; + head = jarc; + // } + + } + + /** + * Returns number of arcs in linked list + * @return number of arcs + */ + public int numarcs() { + // DONE + int count = 0; + for (Arc jarc = firstarc(); jarc != null; jarc = nextarc()) + count++; + return count; + } + + /** + * Removes first arc in list + * @return new linked list head + */ + public Arc removearc() { + // DONE + Arc jarc = head; + if (jarc != null) + head = jarc.link; + return jarc; + + } + + /** + * Consolidates linked list + */ + public void adopt() { + // DONE + markall(); + + Arc orphan; + while ((orphan = removearc()) != null) { + for (Arc parent = orphan.next; !parent.equals(orphan); parent = parent.next) { + if (!parent.ismarked()) { + orphan.link = parent.link; + parent.link = orphan; + orphan.clearmark(); + break; + } + } + } + + } + + /** + * Marks all arc in linked list + */ + private void markall() { + // DONE + for (Arc jarc = firstarc(); jarc != null; jarc = nextarc()) + jarc.setmark(); + } + + /** + * Returns first arc in linked list + * @return first arc in linked list + */ + private Arc firstarc() { + // DONE + current = head; + return nextarc(); + } + + /** + * Returns next arc in linked list + * @return next arc + * + */ + private Arc nextarc() { + // DONE + Arc jarc = current; + if (jarc != null) + current = jarc.link; + return jarc; + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Breakpt.java b/src/classes/com/sun/opengl/impl/nurbs/Breakpt.java new file mode 100755 index 000000000..9cccc5102 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Breakpt.java @@ -0,0 +1,59 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class holding break point parameters + * + * @author Tomas Hrasky + * + */ +public class Breakpt { + + /** + * Breakpoint multiplicity + */ + public int multi; + + /** + * Breakpint value + */ + public float value; + + /** + * Breakpoint deficit (how many times it has to be added) + */ + public int def; +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/CArrayOfArcs.java b/src/classes/com/sun/opengl/impl/nurbs/CArrayOfArcs.java new file mode 100755 index 000000000..3d6e1d47f --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/CArrayOfArcs.java @@ -0,0 +1,194 @@ +package com.sun.opengl.impl.glu.nurbs; + +/** + * Class replacing C language pointer + * + * @author Tomas Hrasky + * + */ +public class CArrayOfArcs { + /** + * Underlaying array + */ + private Arc[] array; + + /** + * Pointer to array member + */ + private int pointer; + + /** + * Don't check for array borders? + */ + private boolean noCheck = true; + + /** + * Makes new CArray + * + * @param array + * underlaying array + * @param pointer + * pointer (index) to array + */ + public CArrayOfArcs(Arc[] array, int pointer) { + this.array = array; + // this.pointer=pointer; + setPointer(pointer); + } + + /** + * Makes new CArray from other CArray + * + * @param carray + * reference array + */ + public CArrayOfArcs(CArrayOfArcs carray) { + this.array = carray.array; + // this.pointer=carray.pointer; + setPointer(carray.pointer); + } + + /** + * Makes new CArray with pointer set to 0 + * + * @param ctlarray + * underlaying array + */ + public CArrayOfArcs(Arc[] ctlarray) { + this.array = ctlarray; + this.pointer = 0; + } + + /** + * Returns element at pointer + * + * @return element at pointer + */ + public Arc get() { + return array[pointer]; + } + + /** + * Increases pointer by one (++) + */ + public void pp() { + // pointer++; + setPointer(pointer + 1); + } + + /** + * Sets element at pointer + * + * @param f + * desired value + */ + public void set(Arc f) { + array[pointer] = f; + + } + + /** + * Returns array element at specified index + * + * @param i + * array index + * @return element at index + */ + public Arc get(int i) { + return array[i]; + } + + /** + * Returns array element at specified index relatively to pointer + * + * @param i + * relative index + * @return element at relative index + */ + public Arc getRelative(int i) { + return array[pointer + i]; + } + + /** + * Sets value of element at specified index relatively to pointer + * + * @param i + * relative index + * @param value + * value to be set + */ + public void setRelative(int i, Arc value) { + array[pointer + i] = value; + } + + /** + * Lessens pointer by value + * + * @param i + * lessen by + */ + public void lessenPointerBy(int i) { + // pointer-=i; + setPointer(pointer - i); + } + + /** + * Returns pointer value + * + * @return pointer value + */ + public int getPointer() { + return pointer; + } + + /** + * Sets ponter value + * + * @param pointer + * pointer value to be set + */ + public void setPointer(int pointer) { + if (!noCheck && pointer > array.length) + throw new IllegalArgumentException("Pointer " + pointer + + " out of bounds " + array.length); + this.pointer = pointer; + } + + /** + * Raises pointer by value + * + * @param i + * raise by + */ + public void raisePointerBy(int i) { + // pointer+=i; + setPointer(pointer + i); + } + + /** + * Lessens ponter by one (--) + */ + public void mm() { + // pointer--; + setPointer(pointer - 1); + } + + /** + * Returns underlaying array + * + * @return underlaying array + */ + public Arc[] getArray() { + return array; + } + + /** + * Sets underlaying array + * + * @param array + * underlaying array + */ + public void setArray(Arc[] array) { + this.array = array; + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/CArrayOfBreakpts.java b/src/classes/com/sun/opengl/impl/nurbs/CArrayOfBreakpts.java new file mode 100755 index 000000000..f5932d954 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/CArrayOfBreakpts.java @@ -0,0 +1,130 @@ +package com.sun.opengl.impl.glu.nurbs; + +/** + * Class replacing C language pointer + * + * @author Tomas Hrasky + * + */ +public class CArrayOfBreakpts { + /** + * Underlaying array + */ + private Breakpt[] pole; + + /** + * Pointer to array member + */ + private int pointer; + + /** + * Makes new CArray + * + * @param array + * underlaying array + * @param pointer + * pointer (index) to array + */ + public CArrayOfBreakpts(Breakpt[] array, int pointer) { + this.pole = array; + this.pointer = pointer; + } + + /** + * Makes new CArray from other CArray + * + * @param carray + * reference array + */ + public CArrayOfBreakpts(CArrayOfBreakpts carray) { + this.pole = carray.pole; + this.pointer = carray.pointer; + } + + /** + * Returns element at pointer + * + * @return element at pointer + */ + public Breakpt get() { + return pole[pointer]; + } + + /** + * Increases pointer by one (++) + */ + public void pp() { + pointer++; + } + + /** + * Sets element at pointer + * + * @param f + * desired value + */ + public void set(Breakpt f) { + pole[pointer] = f; + + } + + /** + * Returns array element at specified index + * + * @param i + * array index + * @return element at index + */ + public Breakpt get(int i) { + return pole[i]; + } + + /** + * Lessens pointer by value + * + * @param i + * lessen by + */ + public void lessenPointerBy(int i) { + pointer -= i; + + } + + /** + * Returns pointer value + * + * @return pointer value + */ + public int getPointer() { + return pointer; + } + + /** + * Sets ponter value + * + * @param pointer + * pointer value to be set + */ + public void setPointer(int pointer) { + this.pointer = pointer; + } + + /** + * Raises pointer by value + * + * @param i + * raise by + */ + public void raisePointerBy(int i) { + pointer += i; + + } + + /** + * Lessens ponter by one (--) + */ + public void mm() { + pointer--; + + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/CArrayOfFloats.java b/src/classes/com/sun/opengl/impl/nurbs/CArrayOfFloats.java new file mode 100755 index 000000000..fb3fac69b --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/CArrayOfFloats.java @@ -0,0 +1,195 @@ +package com.sun.opengl.impl.glu.nurbs; + +/** + * Class replacing C language pointer + * + * @author Tomas Hrasky + * + */ +public class CArrayOfFloats { + + /** + * Underlaying array + */ + private float[] array; + + /** + * Pointer to array member + */ + private int pointer; + + /** + * Don't check for array borders? + */ + private boolean noCheck = true; + + /** + * Makes new CArray + * + * @param array + * underlaying array + * @param pointer + * pointer (index) to array + */ + public CArrayOfFloats(float[] array, int pointer) { + this.array = array; + // this.pointer=pointer; + setPointer(pointer); + } + + /** + * Makes new CArray from other CArray + * + * @param carray + * reference array + */ + public CArrayOfFloats(CArrayOfFloats carray) { + this.array = carray.array; + // this.pointer=carray.pointer; + setPointer(carray.pointer); + } + + /** + * Makes new CArray with pointer set to 0 + * + * @param ctlarray + * underlaying array + */ + public CArrayOfFloats(float[] ctlarray) { + this.array = ctlarray; + this.pointer = 0; + } + + /** + * Returns element at pointer + * + * @return element at pointer + */ + public float get() { + return array[pointer]; + } + + /** + * Increases pointer by one (++) + */ + public void pp() { + // pointer++; + setPointer(pointer + 1); + } + + /** + * Sets element at pointer + * + * @param f + * desired value + */ + public void set(float f) { + array[pointer] = f; + + } + + /** + * Returns array element at specified index + * + * @param i + * array index + * @return element at index + */ + public float get(int i) { + return array[i]; + } + + /** + * Returns array element at specified index relatively to pointer + * + * @param i + * relative index + * @return element at relative index + */ + public float getRelative(int i) { + return array[pointer + i]; + } + + /** + * Sets value of element at specified index relatively to pointer + * + * @param i + * relative index + * @param value + * value to be set + */ + public void setRelative(int i, float value) { + array[pointer + i] = value; + } + + /** + * Lessens pointer by value + * + * @param i + * lessen by + */ + public void lessenPointerBy(int i) { + // pointer-=i; + setPointer(pointer - i); + } + + /** + * Returns pointer value + * + * @return pointer value + */ + public int getPointer() { + return pointer; + } + + /** + * Sets ponter value + * + * @param pointer + * pointer value to be set + */ + public void setPointer(int pointer) { + if (!noCheck && pointer > array.length) + throw new IllegalArgumentException("Pointer " + pointer + + " out of bounds " + array.length); + this.pointer = pointer; + } + + /** + * Raises pointer by value + * + * @param i + * raise by + */ + public void raisePointerBy(int i) { + // pointer+=i; + setPointer(pointer + i); + } + + /** + * Lessens ponter by one (--) + */ + public void mm() { + // pointer--; + setPointer(pointer - 1); + } + + /** + * Returns underlaying array + * + * @return underlaying array + */ + public float[] getArray() { + return array; + } + + /** + * Sets underlaying array + * + * @param array + * underlaying array + */ + public void setArray(float[] array) { + this.array = array; + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/CArrayOfQuiltspecs.java b/src/classes/com/sun/opengl/impl/nurbs/CArrayOfQuiltspecs.java new file mode 100755 index 000000000..fed301895 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/CArrayOfQuiltspecs.java @@ -0,0 +1,160 @@ +package com.sun.opengl.impl.glu.nurbs; + +/** + * Class replacing C language pointer + * + * @author Tomas Hrasky + * + */ +public class CArrayOfQuiltspecs { + /** + * Underlaying array + */ + private Quiltspec[] array; + + /** + * Pointer to array member + */ + private int pointer; + + /** + * Makes new CArray + * + * @param array + * underlaying array + * @param pointer + * pointer (index) to array + */ + public CArrayOfQuiltspecs(Quiltspec[] array, int pointer) { + this.array = array; + this.pointer = pointer; + } + + /** + * Makes new CArray from other CArray + * + * @param carray + * reference array + */ + public CArrayOfQuiltspecs(CArrayOfQuiltspecs carray) { + this.array = carray.array; + this.pointer = carray.pointer; + } + + /** + * Makes new CArray with pointer set to 0 + * + * @param array + * underlaying array + */ + public CArrayOfQuiltspecs(Quiltspec[] array) { + this.array = array; + this.pointer = 0; + } + + /** + * Returns element at pointer + * + * @return element at pointer + */ + public Quiltspec get() { + return array[pointer]; + } + + /** + * Increases pointer by one (++) + */ + public void pp() { + pointer++; + } + + /** + * Sets element at pointer + * + * @param f + * desired value + */ + public void set(Quiltspec f) { + array[pointer] = f; + + } + + /** + * Returns array element at specified index + * + * @param i + * array index + * @return element at index + */ + public Quiltspec get(int i) { + return array[i]; + } + + /** + * Lessens pointer by value + * + * @param i + * lessen by + */ + public void lessenPointerBy(int i) { + pointer -= i; + + } + + /** + * Returns pointer value + * + * @return pointer value + */ + public int getPointer() { + return pointer; + } + + /** + * Sets ponter value + * + * @param pointer + * pointer value to be set + */ + public void setPointer(int pointer) { + this.pointer = pointer; + } + + /** + * Raises pointer by value + * + * @param i + * raise by + */ + public void raisePointerBy(int i) { + pointer += i; + + } + + /** + * Lessens ponter by one (--) + */ + public void mm() { + pointer--; + + } + + /** + * Returns underlaying array + * + * @return underlaying array + */ + public Quiltspec[] getArray() { + return array; + } + + /** + * Sets underlaying array + * + * @param array + * underlaying array + */ + public void setArray(Quiltspec[] array) { + this.array = array; + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Curve.java b/src/classes/com/sun/opengl/impl/nurbs/Curve.java new file mode 100755 index 000000000..318c8416c --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Curve.java @@ -0,0 +1,238 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class holding curve definition + * @author Tomáš Hráský + * + */ +public class Curve { + + /** + * Maximum coordinates per control point + */ + private static final int MAXCOORDS = 5; + + /** + * Max curve order + */ + private static final int MAXORDER = 24; + + /** + * Next curve in linked list + */ + public Curve next; + + /** + * OpenGL maps + */ + private Mapdesc mapdesc; + + /** + * Does the curve need sampling + */ + private boolean needsSampling; + + /** + * Culling + */ + private int cullval; + + /** + * Number of coords + */ + private int stride; + + /** + * Curve order + */ + private int order; + + /** + * Holds conversion range borders + */ + private float[] range; + + /** + * Subdivision stepsize + */ + public float stepsize; + + /** + * Minimal subdivision stepsize + */ + private float minstepsize; + + /** + * Sampling points + */ + float[] spts; + + /** + * Makes new Curve + * + * @param geo + * @param pta + * @param ptb + * @param c + * next curve in linked list + */ + public Curve(Quilt geo, float[] pta, float[] ptb, Curve c) { + + spts = new float[MAXORDER * MAXCOORDS]; + + mapdesc = geo.mapdesc; + + next = c; + needsSampling = mapdesc.isRangeSampling() ? true : false; + + cullval = mapdesc.isCulling() ? Subdivider.CULL_ACCEPT + : Subdivider.CULL_TRIVIAL_REJECT; + order = geo.qspec.get(0).order; + stride = MAXCOORDS; + + // CArrayOfFloats ps = geo.cpts; + CArrayOfFloats ps = new CArrayOfFloats(geo.cpts.getArray(), 0); + CArrayOfQuiltspecs qs = geo.qspec; + ps.raisePointerBy(qs.get().offset); + ps.raisePointerBy(qs.get().index * qs.get().order * qs.get().stride); + + if (needsSampling) { + mapdesc.xformSampling(ps, qs.get().order, qs.get().stride, spts, + stride); + } + if (cullval == Subdivider.CULL_ACCEPT) { + // System.out.println("TODO curve.Curve-cullval"); + // mapdesc.xformCulling(ps,qs.get().order,qs.get().stride,cpts,stride); + } + + range = new float[3]; + range[0] = qs.get().breakpoints[qs.get().index]; + range[1] = qs.get().breakpoints[qs.get().index + 1]; + range[2] = range[1] - range[0]; + // TODO it is necessary to solve problem with "this" pointer here + if (range[0] != pta[0]) { + // System.out.println("TODO curve.Curve-range0"); + // Curve lower=new Curve(this,pta,0); + // lower.next=next; + // this=lower; + } + if (range[1] != ptb[0]) { + // System.out.println("TODO curve.Curve-range1"); + // Curve lower=new Curve(this,ptb,0); + } + } + + /** + * Checks culling type + * @return Subdivider.CULL_ACCEPT + */ + public int cullCheck() { + if (cullval == Subdivider.CULL_ACCEPT) { + // System.out.println("TODO curve.cullval"); + // cullval=mapdesc.cullCheck(cpts,order,stride); + } + // TODO compute cullval and return the computed value + // return cullval; + return Subdivider.CULL_ACCEPT; + } + + /** + * Computes subdivision step size + */ + public void getStepSize() { + minstepsize = 0; + if (mapdesc.isConstantSampling()) { + setstepsize(mapdesc.maxrate); + } else if (mapdesc.isDomainSampling()) { + setstepsize(mapdesc.maxrate * range[2]); + } else { + assert (order <= MAXORDER); + + float tmp[][] = new float[MAXORDER][MAXCOORDS]; + + int tstride = (MAXORDER); + + int val = 0; + // mapdesc.project(spts,stride,tmp,tstride,order); + + // System.out.println("TODO curve.getsptepsize mapdesc.project"); + + if (val == 0) { + setstepsize(mapdesc.maxrate); + } else { + float t = mapdesc.getProperty(NurbsConsts.N_PIXEL_TOLERANCE); + if (mapdesc.isParametricDistanceSampling()) { + // System.out.println("TODO curve.getstepsize - parametric"); + } else if (mapdesc.isPathLengthSampling()) { + // System.out.println("TODO curve.getstepsize - pathlength"); + } else { + setstepsize(mapdesc.maxrate); + } + } + + } + + } + + /** + * Sets maximum subdivision step size + * @param max maximum subdivision step size + */ + private void setstepsize(float max) { + // DONE + stepsize = (max >= 1) ? (range[2] / max) : range[2]; + minstepsize = stepsize; + } + + /** + * Clamps the curve + */ + public void clamp() { + // DONE + if (stepsize < minstepsize) + stepsize = mapdesc.clampfactor * minstepsize; + } + + /** + * Tells whether curve needs subdivision + * + * @return curve needs subdivison + */ + public boolean needsSamplingSubdivision() { + return (stepsize < minstepsize); + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Curvelist.java b/src/classes/com/sun/opengl/impl/nurbs/Curvelist.java new file mode 100755 index 000000000..fdce39b46 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Curvelist.java @@ -0,0 +1,121 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class for woking with linked list of curves + * @author Tomas Hrasky + * + */ +public class Curvelist { + + /** + * Head of linked list + */ + private Curve curve; + + /** + * Holds conversion range borders + */ + float[] range; + + /** + * Subdivision step size + */ + public float stepsize; + + /** + * Do curves need subdivision? + */ + private boolean needsSubdivision; + + /** + * Makes new instance on top of specified lis of Quilts + * @param qlist underlaying list of quilts + * @param pta range start + * @param ptb range end + */ + public Curvelist(Quilt qlist, float[] pta, float[] ptb) { + // DONE + curve = null; + range = new float[3]; + + for (Quilt q = qlist; q != null; q = q.next) { + curve = new Curve(q, pta, ptb, curve); + } + range[0] = pta[0]; + range[1] = ptb[0]; + range[2] = range[1] - range[0]; + } + + /** + * Compute step size + */ + public void getstepsize() { + // DONE + stepsize = range[2]; + Curve c; + for (c = curve; c != null; c = c.next) { + c.getStepSize(); + c.clamp(); + stepsize = (c.stepsize < stepsize) ? c.stepsize : stepsize; + if (c.needsSamplingSubdivision()) + break; + } + needsSubdivision = (c != null) ? true : false; + + } + + /** + * Indicates whether curves need subdivision + * @return curves need subdivision + */ + public boolean needsSamplingSubdivision() { + // DONE + return needsSubdivision; + } + + /** + * Checks for culling + * @return Subdivider.CULL_TRIVIAL_REJECT or Subdivider.CULL_ACCEPT + */ + public int cullCheck() { + // DONE + for (Curve c = curve; c != null; c = c.next) + if (c.cullCheck() == Subdivider.CULL_TRIVIAL_REJECT) + return Subdivider.CULL_TRIVIAL_REJECT; + return Subdivider.CULL_ACCEPT; + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/DisplayList.java b/src/classes/com/sun/opengl/impl/nurbs/DisplayList.java new file mode 100755 index 000000000..735c36edf --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/DisplayList.java @@ -0,0 +1,56 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +import java.lang.reflect.Method; + +/** + * Display list + * @author Tomas Hrasky + * + */ +public class DisplayList { + + /** + * Append action to the display list + * @param src source object to invoke method on + * @param m invoked method + * @param arg method argument + */ + public void append(Object src, Method m, Object arg) { + // TODO Auto-generated method stub + // System.out.println("TODO displaylist append"); + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Flist.java b/src/classes/com/sun/opengl/impl/nurbs/Flist.java new file mode 100755 index 000000000..d9e798854 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Flist.java @@ -0,0 +1,130 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +import java.util.Arrays; + +/** + * List of breakpoints + * @author Tomas Hrasky + * + */ +public class Flist { + + /** + * Data elements end index + * + */ + public int end; + + /** + *Data elements start index + */ + public int start; + + /** + * Breakpoint values + */ + public float[] pts; + + /** + * Number of array fields + */ + private int npts; + + /** + * Grows list + * @param maxpts maximum desired size + */ + public void grow(int maxpts) { + // DONE + if (npts < maxpts) { + // npts=2*maxpts; + npts = maxpts; + pts = new float[npts]; + } + start = 0; + end = 0; + } + + /** + * Removes duplicate array elemnts + */ + public void filter() { + // INFO the aim of this method is to remove duplicates from array + + Arrays.sort(pts); + + 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; + + } + + /** + * Sets start and and to real start and end of array elements + * @param from start from + * @param to end at + */ + public void taper(float from, float to) { + // DONE + + while (pts[start] != from) { + start++; + } + + while (pts[end - 1] != to) { + end--; + } + + } + + /** + * Adds breakpoint value + * @param f value + */ + public void add(float f) { + //DONE + pts[end++] = f; + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Knotspec.java b/src/classes/com/sun/opengl/impl/nurbs/Knotspec.java new file mode 100755 index 000000000..bcb55388d --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Knotspec.java @@ -0,0 +1,557 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Knot vector specification + * + * @author Tomas Hrasky + * + */ +public class Knotspec { + + /** + * Begin of input knots + */ + public CArrayOfFloats inkbegin; + + /** + * End of input knots + */ + public CArrayOfFloats inkend; + + /** + * Stride before knot operations + */ + public int prestride; + + /** + * Curve order + */ + public int order; + + /** + * Next knot specification in linked list (used in surfaces) + */ + public Knotspec next; + + /** + * Last knot + */ + public CArrayOfFloats klast; + + /** + * First knot + */ + CArrayOfFloats kfirst; + + /** + * Beginning of breakpoints + */ + CArrayOfBreakpts bbegin; + + /** + * End of breakpoints + */ + CArrayOfBreakpts bend; + + /** + * Considered left end knot + */ + CArrayOfFloats kleft; + + /** + * Considered right end knot + */ + CArrayOfFloats kright; + + /** + * Offset before knot operations + */ + int preoffset; + + /** + * Control points array Length after knot operations + */ + int postwidth; + + /** + * Beginning of coeficients array + */ + private CArrayOfFloats sbegin; + + /** + * Beginning of output knots + */ + private CArrayOfFloats outkbegin; + + /** + * End of output knots + */ + private CArrayOfFloats outkend; + + /** + * Control points aray length before knot operations + */ + int prewidth; + + /** + * Offset after knot operations + */ + int postoffset; + + /** + * Number of control points' coordinates after knot operations + */ + public int poststride; + + /** + * Number of control points' coordinates + */ + public int ncoords; + + /** + * Tell whether knotspec has already benn transformed + */ + public boolean istransformed; + + /** + * Knotspec to be transformed + */ + public Knotspec kspectotrans; + + /** + * Finds knot border of knot insertion and required multiplicities + */ + public void preselect() { + // DONE + float kval; + + klast = new CArrayOfFloats(inkend); + klast.lessenPointerBy(order); + for (kval = klast.get(); klast.getPointer() != inkend.getPointer(); klast + .pp()) { + if (!Knotvector.identical(klast.get(), kval)) + break; + } + + kfirst = new CArrayOfFloats(inkbegin); + kfirst.raisePointerBy(order - 1); + for (kval = kfirst.get(); kfirst.getPointer() != inkend.getPointer(); kfirst + .pp()) { + if (!Knotvector.identical(kfirst.get(), kval)) + break; + } + + CArrayOfFloats k = new CArrayOfFloats(kfirst); + k.mm(); + + for (; k.getPointer() >= inkbegin.getPointer(); k.mm()) + if (!Knotvector.identical(kval, k.get())) + break; + k.pp(); + + Breakpt[] bbeginArray = new Breakpt[(klast.getPointer() - kfirst + .getPointer()) + 1]; + for (int i = 0; i < bbeginArray.length; i++) + bbeginArray[i] = new Breakpt(); + bbegin = new CArrayOfBreakpts(bbeginArray, 0); + bbegin.get().multi = kfirst.getPointer() - k.getPointer(); + bbegin.get().value = kval; + + bend = new CArrayOfBreakpts(bbegin); + kleft = new CArrayOfFloats(kfirst); + kright = new CArrayOfFloats(kfirst); + + } + + /** + * Perpares knotspec for transformation + */ + public void select() { + // DONE + breakpoints(); + knots(); + factors(); + + preoffset = kleft.getPointer() - (inkbegin.getPointer() + order); + postwidth = ((bend.getPointer() - bbegin.getPointer()) * order); + prewidth = (outkend.getPointer() - outkbegin.getPointer()) - order; + postoffset = (bbegin.get().def > 1) ? (bbegin.get().def - 1) : 0; + + } + + /** + * Computes alpha factors for computing new control points + */ + private void factors() { + // DONE + CArrayOfFloats mid = new CArrayOfFloats(outkend.getArray(), (outkend + .getPointer() - 1) + - order + bend.get().multi); + + CArrayOfFloats fptr = null; + if (sbegin != null) + fptr = new CArrayOfFloats(sbegin); + + for (CArrayOfBreakpts bpt = new CArrayOfBreakpts(bend); bpt + .getPointer() >= bbegin.getPointer(); bpt.mm()) { + mid.lessenPointerBy(bpt.get().multi); + int def = bpt.get().def - 1; + if (def < 0) + continue; + float kv = bpt.get().value; + + CArrayOfFloats kf = new CArrayOfFloats(mid.getArray(), (mid + .getPointer() - def) + + (order - 1)); + for (CArrayOfFloats kl = new CArrayOfFloats(kf.getArray(), kf + .getPointer() + + def); kl.getPointer() != kf.getPointer(); kl.mm()) { + CArrayOfFloats kh, kt; + for (kt = new CArrayOfFloats(kl), kh = new CArrayOfFloats(mid); kt + .getPointer() != kf.getPointer(); kh.mm(), kt.mm()) { + fptr.set((kv - kh.get()) / (kt.get() - kh.get())); + fptr.pp(); + } + kl.set(kv); + } + } + + } + + /** + * Makes new knot vector + */ + private void knots() { + // DONE + CArrayOfFloats inkpt = new CArrayOfFloats(kleft.getArray(), kleft + .getPointer() + - order); + CArrayOfFloats inkend = new CArrayOfFloats(kright.getArray(), kright + .getPointer() + + bend.get().def); + + outkbegin = new CArrayOfFloats(new float[inkend.getPointer() + - inkpt.getPointer()], 0); + CArrayOfFloats outkpt; + for (outkpt = new CArrayOfFloats(outkbegin); inkpt.getPointer() != inkend + .getPointer(); inkpt.pp(), outkpt.pp()) { + outkpt.set(inkpt.get()); + } + outkend = new CArrayOfFloats(outkpt); + } + + /** + * Analyzes breakpoints + */ + private void breakpoints() { + // DONE + CArrayOfBreakpts ubpt = new CArrayOfBreakpts(bbegin); + CArrayOfBreakpts ubend = new CArrayOfBreakpts(bend); + int nfactors = 0; + + ubpt.get().value = ubend.get().value; + ubpt.get().multi = ubend.get().multi; + + kleft = new CArrayOfFloats(kright); + + for (; kright.getPointer() != klast.getPointer(); kright.pp()) { + if (Knotvector.identical(kright.get(), ubpt.get().value)) { + ubpt.get().multi++; + } else { + ubpt.get().def = order - ubpt.get().multi; + nfactors += (ubpt.get().def * (ubpt.get().def - 1)) / 2; + ubpt.pp(); + ubpt.get().value = kright.get(); + ubpt.get().multi = 1; + } + } + ubpt.get().def = order - ubpt.get().multi; + nfactors += (ubpt.get().def * (ubpt.get().def - 1)) / 2; + + bend = new CArrayOfBreakpts(ubpt); + + if (nfactors > 0) { + sbegin = new CArrayOfFloats(new float[nfactors], 0); + } else { + sbegin = null; + } + + } + + /** + * Copies control points + * + * @param _inpt + * input control points + * @param _outpt + * output control points + */ + public void copy(CArrayOfFloats _inpt, CArrayOfFloats _outpt) { + CArrayOfFloats inpt = new CArrayOfFloats(_inpt); + CArrayOfFloats outpt = new CArrayOfFloats(_outpt); + + inpt.raisePointerBy(preoffset); + if (next != null) { + for (CArrayOfFloats lpt = new CArrayOfFloats(outpt.getArray(), + outpt.getPointer() + prewidth); outpt.getPointer() != lpt + .getPointer(); outpt.raisePointerBy(poststride)) { + next.copy(inpt, outpt); + inpt.raisePointerBy(prestride); + } + + } else { + for (CArrayOfFloats lpt = new CArrayOfFloats(outpt.getArray(), + outpt.getPointer() + prewidth); outpt.getPointer() != lpt + .getPointer(); outpt.raisePointerBy(poststride)) { + pt_io_copy(outpt, inpt); + inpt.raisePointerBy(prestride); + } + } + + } + + /** + * Copies one control point to other + * + * @param topt + * source control point + * @param frompt + * destination control point + */ + private void pt_io_copy(CArrayOfFloats topt, CArrayOfFloats frompt) { + // DONE + switch (ncoords) { + case 4: + topt.setRelative(3, frompt.getRelative(3)); + case 3: + topt.setRelative(2, frompt.getRelative(2)); + case 2: + topt.setRelative(1, frompt.getRelative(1)); + case 1: + topt.set(frompt.get()); + break; + default: + // TODO break with copying in general case + // System.out.println("TODO knotspec.pt_io_copy"); + break; + } + + } + + /** + * Inserts a knot + * + * @param _p + * inserted knot + */ + public void transform(CArrayOfFloats _p) { + CArrayOfFloats p = new CArrayOfFloats(_p); + // DONE + if (next != null) {//surface code + if (this.equals(kspectotrans)) { + next.transform(p); + } else { + if (istransformed) { + p.raisePointerBy(postoffset); + for (CArrayOfFloats pend = new CArrayOfFloats(p.getArray(), + p.getPointer() + postwidth); p.getPointer() != pend + .getPointer(); p.raisePointerBy(poststride)) + next.transform(p); + + } else { + CArrayOfFloats pend = new CArrayOfFloats(p.getArray(), p + .getPointer() + + prewidth); + for (; p.getPointer() != pend.getPointer(); p + .raisePointerBy(poststride)) + next.transform(p); + } + } + + } else {//code for curve + if (this.equals(kspectotrans)) { + insert(p); + } else { + if (istransformed) { + p.raisePointerBy(postoffset); + for (CArrayOfFloats pend = new CArrayOfFloats(p.getArray(), + p.getPointer() + postwidth); p.getPointer() != pend + .getPointer(); p.raisePointerBy(poststride)) { + kspectotrans.insert(p); + } + } else { + CArrayOfFloats pend = new CArrayOfFloats(p.getArray(), p + .getPointer() + + prewidth); + for (; p.getPointer() != pend.getPointer(); p + .raisePointerBy(poststride)) + kspectotrans.insert(p); + } + } + } + + } + + /** + * Inserts a knot and computes new control points + * + * @param p + * inserted knot + */ + private void insert(CArrayOfFloats p) { + // DONE + CArrayOfFloats fptr = null; + if (sbegin != null) + fptr = new CArrayOfFloats(sbegin); + CArrayOfFloats srcpt = new CArrayOfFloats(p.getArray(), p.getPointer() + + prewidth - poststride); + // CArrayOfFloats srcpt = new CArrayOfFloats(p.getArray(), prewidth - + // poststride); + CArrayOfFloats dstpt = new CArrayOfFloats(p.getArray(), p.getPointer() + + postwidth + postoffset - poststride); + // CArrayOfFloats dstpt = new CArrayOfFloats(p.getArray(), postwidth + + // postoffset - poststride); + CArrayOfBreakpts bpt = new CArrayOfBreakpts(bend); + + for (CArrayOfFloats pend = new CArrayOfFloats(srcpt.getArray(), srcpt + .getPointer() + - poststride * bpt.get().def); srcpt.getPointer() != pend + .getPointer(); pend.raisePointerBy(poststride)) { + CArrayOfFloats p1 = new CArrayOfFloats(srcpt); + for (CArrayOfFloats p2 = new CArrayOfFloats(srcpt.getArray(), srcpt + .getPointer() + - poststride); p2.getPointer() != pend.getPointer(); p1 + .setPointer(p2.getPointer()), p2 + .lessenPointerBy(poststride)) { + pt_oo_sum(p1, p1, p2, fptr.get(), 1.0 - fptr.get()); + fptr.pp(); + } + } + bpt.mm(); + for (; bpt.getPointer() >= bbegin.getPointer(); bpt.mm()) { + + for (int multi = bpt.get().multi; multi > 0; multi--) { + pt_oo_copy(dstpt, srcpt); + dstpt.lessenPointerBy(poststride); + srcpt.lessenPointerBy(poststride); + } + for (CArrayOfFloats pend = new CArrayOfFloats(srcpt.getArray(), + srcpt.getPointer() - poststride * bpt.get().def); srcpt + .getPointer() != pend.getPointer(); pend + .raisePointerBy(poststride), dstpt + .lessenPointerBy(poststride)) { + pt_oo_copy(dstpt, srcpt); + CArrayOfFloats p1 = new CArrayOfFloats(srcpt); + + for (CArrayOfFloats p2 = new CArrayOfFloats(srcpt.getArray(), + srcpt.getPointer() - poststride); p2.getPointer() != pend + .getPointer(); p1.setPointer(p2.getPointer()), p2 + .lessenPointerBy(poststride)) { + pt_oo_sum(p1, p1, p2, fptr.get(), 1.0 - fptr.get()); + fptr.pp(); + } + } + } + } + + /** + * Copies one control point to another + * + * @param topt + * source ctrl point + * @param frompt + * distance ctrl point + */ + private void pt_oo_copy(CArrayOfFloats topt, CArrayOfFloats frompt) { + // DONE + // this is a "trick" with case - "break" is omitted so it comes through all cases + switch (ncoords) { + case 4: + topt.setRelative(3, frompt.getRelative(3)); + case 3: + topt.setRelative(2, frompt.getRelative(2)); + case 2: + topt.setRelative(1, frompt.getRelative(1)); + case 1: + topt.setRelative(0, frompt.getRelative(0)); + break; + default: + // default uses memcpy but it is not needed (we probably won't have more than 4 coords) + // TODO not sure about it + break; + } + + } + + /** + * Computes new control point + * + * @param x + * first point + * @param y + * second point + * @param z + * third pont + * @param a + * alpha + * @param b + * 1 - alpha + */ + private void pt_oo_sum(CArrayOfFloats x, CArrayOfFloats y, + CArrayOfFloats z, float a, double b) { + // DONE + switch (ncoords) { + case 4: + x.setRelative(3, (float) (a * y.getRelative(3) + b + * z.getRelative(3))); + case 3: + x.setRelative(2, (float) (a * y.getRelative(2) + b + * z.getRelative(2))); + case 2: + x.setRelative(1, (float) (a * y.getRelative(1) + b + * z.getRelative(1))); + case 1: + x.setRelative(0, (float) (a * y.getRelative(0) + b + * z.getRelative(0))); + break; + default: + //no need of default - see previous method and its case statement + // System.out.println("TODO pt_oo_sum default"); + break; + } + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Knotvector.java b/src/classes/com/sun/opengl/impl/nurbs/Knotvector.java new file mode 100755 index 000000000..c7c3d4578 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Knotvector.java @@ -0,0 +1,179 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Knot vector used in curve specification + * + * @author Tomas Hrasky + * + */ +public class Knotvector { + + /** + * Tolerance used when comparing knots - when difference is smaller, knots + * are considered equal + */ + public static final float TOLERANCE = 1.0e-5f; + + /** + * Maximum curve order + */ + private static final int MAXORDER = 24; + + /** + * Number of knots + */ + int knotcount; + + /** + * Number of control points' coordinates + */ + int stride; + + /** + * Curve order + */ + int order; + + /** + * Knots + */ + float[] knotlist; + + /** + * Makes new knotvector + * + * @param nknots + * number of knots + * @param stride + * number of ctrl points' corrdinates + * @param order + * curve order + * @param knot + * knots + */ + public Knotvector(int nknots, int stride, int order, float[] knot) { + // DONE + init(nknots, stride, order, knot); + } + + /** + * Initializes knotvector + * + * @param nknots + * number of knots + * @param stride + * number of ctrl points' corrdinates + * @param order + * curve order + * @param knot + * knots + */ + public void init(int nknots, int stride, int order, float[] knot) { + // DONE + this.knotcount = nknots; + this.stride = stride; + this.order = order; + this.knotlist = new float[nknots]; + for (int i = 0; i < nknots; i++) { + this.knotlist[i] = knot[i]; + } + + } + + /** + * Validates knot vector parameters + * + * @return knot vector validity + */ + public int validate() { + int kindex = knotcount - 1; + if (order < 1 || order > MAXORDER) { + return 1; + } + if (knotcount < 2 * order) { + return 2; + } + if (identical(knotlist[kindex - (order - 1)], knotlist[order - 1])) { + return 3; + } + for (int i = 0; i < kindex; i++) { + if (knotlist[i] > knotlist[i + 1]) + return 4; + } + int multi = 1; + for (; kindex >= 1; kindex--) { + if (knotlist[kindex] - knotlist[kindex - 1] < TOLERANCE) { + multi++; + continue; + } + if (multi > order) { + return 5; + } + multi = 1; + } + if (multi > order) { + return 5; + } + + return 0; + } + + /** + * Show specified message + * + * @param msg + * message to be shown + */ + public void show(String msg) { + // TODO Auto-generated method stub + // System.out.println("TODO knotvector.show"); + + } + + /** + * Compares two knots for equality + * + * @param a + * first knot + * @param b + * second knot + * @return knots are/are not equal + */ + public static boolean identical(float a, float b) { + return ((a - b) < TOLERANCE) ? true : false; + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Mapdesc.java b/src/classes/com/sun/opengl/impl/nurbs/Mapdesc.java new file mode 100755 index 000000000..8b52a4a8a --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Mapdesc.java @@ -0,0 +1,442 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class holding properties of OpenGL map + * @author Tomas Hrasky + * + */ +public class Mapdesc { + + /** + * Maximum control point coords + */ + private static final int MAXCOORDS = 5; + + /** + * Next description in list + */ + public Mapdesc next; + + /** + * Is map rational + */ + public int isrational; + + /** + * Number of control point coords + */ + public int ncoords; + + /** + * Map type + */ + private int type; + + /** + * Number of homogenous coords + */ + private int hcoords; + + /** + * Number of inhomogenous coords + */ + private int inhcoords; + + /** + * Not used + */ + private int mask; + + /** + * Value of N_PIXEL_TOLERANCE property + */ + private float pixel_tolerance; + + /** + * Value of N_ERROR_TOLERANCE property + */ + private float error_tolerance; + + /** + * Value of N_BBOX_SUBDIVIDING property + */ + private float bbox_subdividing; + + /** + * Value of N_CULLING property + */ + private float culling_method; + + /** + * Value of N_SAMPLINGMETHOD property + */ + private float sampling_method; + + /** + * Value of N_CLAMPFACTOR property + */ + float clampfactor; + + /** + * Value of N_MINSAVINGS property + */ + private float minsavings; + + /** + * Steps in u direction + */ + private float s_steps; + + /** + * Steps in v direction + */ + private float t_steps; + + /** + * Maximal step + */ + float maxrate; + + /** + * Maximal u direction step + */ + private float maxsrate; + + /** + * Maximal v direction step + */ + private float maxtrate; + + /** + * Not used + */ + private float[][] bmat; + + /** + * Sampling matrix + */ + private float[][] smat; + + /** + * Not used + */ + private float[][] cmat; + + /** + * Not used + */ + private float[] bboxsize; + + /** + * Makes new mapdesc + * @param type map type + * @param rational is rational + * @param ncoords number of control points coords + * @param backend backend object + */ + public Mapdesc(int type, int rational, int ncoords, Backend backend) { + // DONE + this.type = type; + this.isrational = rational; + this.ncoords = ncoords; + this.hcoords = ncoords + (isrational > 0 ? 0 : 1); + this.inhcoords = ncoords - (isrational > 0 ? 1 : 0); + this.mask = ((1 << (inhcoords * 2)) - 1); + next = null; + + assert (hcoords <= MAXCOORDS); + assert (inhcoords >= 1); + + pixel_tolerance = 1f; + error_tolerance = 1f; + bbox_subdividing = NurbsConsts.N_NOBBOXSUBDIVISION; + culling_method = NurbsConsts.N_NOCULLING; + sampling_method = NurbsConsts.N_NOSAMPLING; + clampfactor = NurbsConsts.N_NOCLAMPING; + minsavings = NurbsConsts.N_NOSAVINGSSUBDIVISION; + s_steps = 0f; + t_steps = 0f; + + maxrate = (s_steps < 0) ? 0 : s_steps; + maxsrate = (s_steps < 0) ? 0 : s_steps; + maxtrate = (t_steps < 0) ? 0 : t_steps; + bmat = new float[MAXCOORDS][MAXCOORDS]; + cmat = new float[MAXCOORDS][MAXCOORDS]; + smat = new float[MAXCOORDS][MAXCOORDS]; + + identify(bmat); + identify(cmat); + identify(smat); + bboxsize = new float[MAXCOORDS]; + for (int i = 0; i < inhcoords; i++) + bboxsize[i] = 1; + } + + /** + * Make matrix identity matrix + * @param arr matrix + */ + private void identify(float[][] arr) { + // DONE + for (int i = 0; i < MAXCOORDS; i++) + for (int j = 0; j < MAXCOORDS; j++) + arr[i][j] = 0; + for (int i = 0; i < MAXCOORDS; i++) + arr[i][i] = 1; + + } + + /** + * Tells whether tag is property tag + * @param tag property tag + * @return is/is not property + */ + public boolean isProperty(int tag) { + boolean ret; + switch (tag) { + case NurbsConsts.N_PIXEL_TOLERANCE: + case NurbsConsts.N_ERROR_TOLERANCE: + case NurbsConsts.N_CULLING: + case NurbsConsts.N_BBOX_SUBDIVIDING: + case NurbsConsts.N_S_STEPS: + case NurbsConsts.N_T_STEPS: + case NurbsConsts.N_SAMPLINGMETHOD: + case NurbsConsts.N_CLAMPFACTOR: + case NurbsConsts.N_MINSAVINGS: + ret = true; + break; + default: + ret = false; + break; + } + return ret; + } + + /** + * Returns number of control points' coords + * @return number of control points' coords + */ + public int getNCoords() { + return ncoords; + } + + /** + * Returns map type + * @return map type + */ + public int getType() { + return type; + } + + /** + * Tells whether map is range sampling + * @return is map range sampling + */ + public boolean isRangeSampling() { + // DONE + return (isParametricDistanceSampling() || isPathLengthSampling() + || isSurfaceAreaSampling() || isObjectSpaceParaSampling() || isObjectSpacePathSampling()); + } + + /** + * Tells whether map is object space sampling + * @return is map object space sampling + */ + private boolean isObjectSpacePathSampling() { + // DONE + return sampling_method == NurbsConsts.N_OBJECTSPACE_PATH; + } + + /** + * Tells whether map is object space parasampling + * @return is map object space parasampling + */ + private boolean isObjectSpaceParaSampling() { + // DONE + return sampling_method == NurbsConsts.N_OBJECTSPACE_PARA; + } + + /** + * Tells whether map is area sampling surface + * @return is map area sampling surface + */ + private boolean isSurfaceAreaSampling() { + // DONE + return sampling_method == NurbsConsts.N_SURFACEAREA; + } + + /** + * Tells whether map is path length sampling + * @return is map path length sampling + */ + boolean isPathLengthSampling() { + // DONE + return sampling_method == NurbsConsts.N_PATHLENGTH; + } + + /** + * Tells whether map is parametric distance sampling + * @return is map parametric distance sampling + */ + boolean isParametricDistanceSampling() { + // DONE + return sampling_method == NurbsConsts.N_PARAMETRICDISTANCE; + } + + /** + * Tells whether map is culling + * @return is map culling + */ + public boolean isCulling() { + // DONE + return culling_method != NurbsConsts.N_NOCULLING ? true : false; + } + + /** + * Tells whether map is constantly sampling + * @return is map constant sampling + */ + public boolean isConstantSampling() { + return (sampling_method == NurbsConsts.N_FIXEDRATE) ? true : false; + } + + /** + * Tells whether map is domain sampling + * @return is map domain sampling + */ + public boolean isDomainSampling() { + return (sampling_method == NurbsConsts.N_DOMAINDISTANCE) ? true : false; + } + + /** + * Returns property of specified tag value + * @param tag property tag + * @return property value + */ + public float getProperty(int tag) { + // TODO Auto-generated method stub + // System.out.println("TODO mapdesc.getproperty"); + return 0; + } + + /** + * Sets property with given tag + * @param tag property tag + * @param value desired value + */ + public void setProperty(int tag, float value) { + // TODO Auto-generated method stub + switch (tag) { + case NurbsConsts.N_PIXEL_TOLERANCE: + pixel_tolerance = value; + break; + case NurbsConsts.N_ERROR_TOLERANCE: + error_tolerance = value; + break; + case NurbsConsts.N_CULLING: + culling_method = value; + break; + case NurbsConsts.N_BBOX_SUBDIVIDING: + if (value <= 0) + value = NurbsConsts.N_NOBBOXSUBDIVISION; + bbox_subdividing = value; + break; + case NurbsConsts.N_S_STEPS: + if (value < 0) + value = 0; + s_steps = value; + maxrate = value; + maxsrate = value; + break; + case NurbsConsts.N_T_STEPS: + if (value < 0) + value = 0; + t_steps = value; + maxtrate = value; + break; + case NurbsConsts.N_SAMPLINGMETHOD: + sampling_method = value; + break; + case NurbsConsts.N_CLAMPFACTOR: + if (value < 0) + value = 0; + clampfactor = value; + break; + case NurbsConsts.N_MINSAVINGS: + if (value <= 0) + value = NurbsConsts.N_NOSAVINGSSUBDIVISION; + minsavings = value; + break; + } + } + + /** + * Samples curve + * @param pts control points + * @param order curve order + * @param stride number of control points' coordinates + * @param sp breakpoints + * @param outstride output number of control points' coordinates + */ + public void xformSampling(CArrayOfFloats pts, int order, int stride, + float[] sp, int outstride) { + // DONE + xFormMat(smat, pts, order, stride, sp, outstride); + } + + /** + * Empty method + * @param mat sampling matrix + * @param pts ontrol points + * @param order curve order + * @param stride number of control points' coordinates + * @param cp breakpoints + * @param outstride output number of control points' coordinates + */ + private void xFormMat(float[][] mat, CArrayOfFloats pts, int order, + int stride, float[] cp, int outstride) { + // TODO Auto-generated method stub + + // System.out.println("TODO mapdsc.xformmat ; change cp from float[] to carrayoffloats"); + + if (isrational > 0) { + + } else { + + } + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Maplist.java b/src/classes/com/sun/opengl/impl/nurbs/Maplist.java new file mode 100755 index 000000000..3b6e22ea5 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Maplist.java @@ -0,0 +1,122 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class holding list of Mapdescs + * @author Tomáš Hráský + * + */ +public class Maplist { + /** + * Head of linked list + */ + private Mapdesc maps; + + /** + * Backend class + */ + private Backend backend; + + /** + * Makes new Maplist + * @param backend Backend class + */ + public Maplist(Backend backend) { + this.backend = backend; + } + + /** + * Sets linked list beginning to null + */ + public void initialize() { + // TODO mapdespool.clear ? + maps = null; + } + + /** + * Defines new Mapdesc if it is not defined and appends it to linked list + * @param type map type + * @param rational is map rational + * @param ncoords number of coords + */ + public void define(int type, int rational, int ncoords) { + // DONE + Mapdesc m = locate(type); + assert (m == null || (m.isrational == rational && m.ncoords == ncoords)); + add(type, rational, ncoords); + + } + + /** + * Adds new Mapdesc to linked list + * @param type map type + * @param rational is map rational + * @param ncoords number of coords + */ + private void add(int type, int rational, int ncoords) { + // DONE + Mapdesc map = new Mapdesc(type, rational, ncoords, backend); + if (maps == null) { + maps = map; + } else { + map.next = maps; + maps = map; + } + } + + /** + * Tries to find Mapdesc in linked list + * @param type map type + * @return Mapdesc of type or null if there is no such map + */ + public Mapdesc locate(int type) { + // DONE + Mapdesc m = null; + for (m = maps; m != null; m = m.next) + if (m.getType() == type) + break; + return m; + } + + /** + * Alias for locate + * @param type maptype + * @return Mapdesc of type or null if there is no such map + */ + public Mapdesc find(int type) { + return locate(type); + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/NurbsConsts.java b/src/classes/com/sun/opengl/impl/nurbs/NurbsConsts.java new file mode 100755 index 000000000..c98e74b7c --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/NurbsConsts.java @@ -0,0 +1,184 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class hodling NURBS constants as seen in OpenGL GLU documentation + * @author JOGL project + * + */ +public class NurbsConsts { + /* + * NURBS Properties - one set per map, each takes a single INREAL arg + */ + public static final int N_SAMPLING_TOLERANCE = 1; + + public static final int N_S_RATE = 6; + + public static final int N_T_RATE = 7; + + public static final int N_CLAMPFACTOR = 13; + + public static final float N_NOCLAMPING = 0.0f; + + public static final int N_MINSAVINGS = 14; + + public static final float N_NOSAVINGSSUBDIVISION = 0.0f; + + /* + * NURBS Properties - one set per map, each takes an enumerated value + */ + public static final int N_CULLING = 2; + + public static final float N_NOCULLING = 0.0f; + + public static final float N_CULLINGON = 1.0f; + + public static final int N_SAMPLINGMETHOD = 10; + + public static final float N_NOSAMPLING = 0.0f; + + public static final float N_FIXEDRATE = 3.0f; + + public static final float N_DOMAINDISTANCE = 2.0f; + + public static final float N_PARAMETRICDISTANCE = 5.0f; + + public static final float N_PATHLENGTH = 6.0f; + + public static final float N_SURFACEAREA = 7.0f; + + public static final float N_OBJECTSPACE_PARA = 8.0f; + + public static final float N_OBJECTSPACE_PATH = 9.0f; + + public static final int N_BBOX_SUBDIVIDING = 17; + + public static final float N_NOBBOXSUBDIVISION = 0.0f; + + public static final float N_BBOXTIGHT = 1.0f; + + public static final float N_BBOXROUND = 2.0f; + + /* + * NURBS Rendering Properties - one set per renderer each takes an + * enumerated value + */ + public static final int N_DISPLAY = 3; + + public static final int N_FILL = 1; + + public static final int N_OUTLINE_POLY = 2; + + public static final int N_OUTLINE_TRI = 3; + + public static final int N_OUTLINE_QUAD = 4; + + public static final int N_OUTLINE_PATCH = 5; + + public static final int N_OUTLINE_PARAM = 6; + + public static final int N_OUTLINE_PARAM_S = 7; + + public static final int N_OUTLINE_PARAM_ST = 8; + + public static final int N_OUTLINE_SUBDIV = 9; + + public static final int N_OUTLINE_SUBDIV_S = 10; + + public static final int N_OUTLINE_SUBDIV_ST = 11; + + public static final int N_ISOLINE_S = 12; + + public static final int N_ERRORCHECKING = 4; + + public static final int N_NOMSG = 0; + + public static final int N_MSG = 1; + + /* GL 4.0 propeties not defined above */ + + public static final int N_PIXEL_TOLERANCE = N_SAMPLING_TOLERANCE; + + public static final int N_ERROR_TOLERANCE = 20; + + public static final int N_SUBDIVISIONS = 5; + + public static final int N_TILES = 8; + + public static final int N_TMP1 = 9; + + public static final int N_TMP2 = N_SAMPLINGMETHOD; + + public static final int N_TMP3 = 11; + + public static final int N_TMP4 = 12; + + public static final int N_TMP5 = N_CLAMPFACTOR; + + public static final int N_TMP6 = N_MINSAVINGS; + + public static final int N_S_STEPS = N_S_RATE; + + public static final int N_T_STEPS = N_T_RATE; + + /* + * NURBS Rendering Properties - one set per map, each takes an INREAL matrix + * argument + */ + public static final int N_CULLINGMATRIX = 1; + + public static final int N_SAMPLINGMATRIX = 2; + + public static final int N_BBOXMATRIX = 3; + + /* + * NURBS Rendering Properties - one set per map, each takes an INREAL vector + * argument + */ + public static final int N_BBOXSIZE = 4; + + /* type argument for trimming curves */ + + public static final int N_P2D = 0x8; + + public static final int N_P2DR = 0xd; + + public static final int N_MESHLINE = 1; + + public static final int N_MESHFILL = 0; + + public static final int N_MESHPOINT = 2; +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/O_curve.java b/src/classes/com/sun/opengl/impl/nurbs/O_curve.java new file mode 100755 index 000000000..b130226c4 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/O_curve.java @@ -0,0 +1,63 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Struct holding curve links + * @author Tomáš Hráský + * + */ +public class O_curve { + + /** + * Curve type + */ + public int curvetype; + + /** + * Next curve in linked list + */ + public O_curve next; + + /** + * Curve of picewiselinear type + */ + public O_pwlcurve o_pwlcurve; + + /** + * NURBS curve + */ + public O_nurbscurve o_nurbscurve; +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/O_nurbscurve.java b/src/classes/com/sun/opengl/impl/nurbs/O_nurbscurve.java new file mode 100755 index 000000000..68bf60b27 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/O_nurbscurve.java @@ -0,0 +1,80 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * NURBS curve object + * @author Tomáš Hráský + * + */ +public class O_nurbscurve { + + /** + * List of bezier curves + */ + public Quilt bezier_curves; + + /** + * Curve type + */ + public int type; + + /** + * Was curve used ? + */ + public boolean used; + + /** + * Parent curve + */ + public O_curve owner; + + /** + * Next curve in list + */ + public O_nurbscurve next; + + /** + * Makes new O_nurbscurve + * @param realType type of curve + */ + public O_nurbscurve(int realType) { + // DONE + this.type = realType; + this.owner = null; + this.next = null; + this.used = false; + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/O_nurbssurface.java b/src/classes/com/sun/opengl/impl/nurbs/O_nurbssurface.java new file mode 100755 index 000000000..1cbaa6ccc --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/O_nurbssurface.java @@ -0,0 +1,79 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * NURBS surface object + * @author Tomáš Hráský + * + */ +public class O_nurbssurface { + + /** + * List of bezier patches forming NURBS surface + */ + public Quilt bezier_patches; + + /** + * Was surface used + */ + public boolean used; + + /** + * Parent O_surface + */ + public O_surface owner; + + /** + * Next surface in list + */ + public O_nurbssurface next; + + /** + * Surface type + */ + private int type; + + /** + * Makes new O_nurbssurface of type + * @param type surface type + */ + public O_nurbssurface(int type) { + this.type = type; + this.owner = null; + this.next = null; + this.used = false; + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/O_pwlcurve.java b/src/classes/com/sun/opengl/impl/nurbs/O_pwlcurve.java new file mode 100755 index 000000000..4dec066d6 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/O_pwlcurve.java @@ -0,0 +1,44 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Empty class + * @author Tomáš Hráský + * + */ +public class O_pwlcurve { + +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/O_surface.java b/src/classes/com/sun/opengl/impl/nurbs/O_surface.java new file mode 100755 index 000000000..4ef680c2f --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/O_surface.java @@ -0,0 +1,52 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Surface object + * @author Tomáš Hráský + * + */ +public class O_surface { + /** + * NURBS surface + */ + public O_nurbssurface o_nurbssurface; + + /** + * Trims + */ + public O_trim o_trim; +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/O_trim.java b/src/classes/com/sun/opengl/impl/nurbs/O_trim.java new file mode 100755 index 000000000..c1f61ebab --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/O_trim.java @@ -0,0 +1,44 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Empty class + * @author Tomáš Hráský + * + */ +public class O_trim { + +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Patch.java b/src/classes/com/sun/opengl/impl/nurbs/Patch.java new file mode 100755 index 000000000..f15ad1f92 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Patch.java @@ -0,0 +1,54 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Empty class + * @author Tomas Hrasky + * + */ +public class Patch { + + /** + * Empty constructor + * @param q + * @param pta + * @param ptb + * @param patch + */ + public Patch(Quilt q, float[] pta, float[] ptb, Patch patch) { + // System.out.println("TODO patch.constructor"); + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Patchlist.java b/src/classes/com/sun/opengl/impl/nurbs/Patchlist.java new file mode 100755 index 000000000..b2b9033ec --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Patchlist.java @@ -0,0 +1,145 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * List of patches + * @author Tomáš Hráský + * + */ +public class Patchlist { + + /** + * Array of ranges + */ + public Pspec[] pspec; + + /** + * head of list of patches + */ + private Patch patch; + + /** + * Makes new list of patches + * @param quilts list of quilts + * @param pta low border + * @param ptb high border + */ + public Patchlist(Quilt quilts, float[] pta, float[] ptb) { + // DONE + patch = null; + + for (Quilt q = quilts; q != null; q = q.next) + patch = new Patch(q, pta, ptb, patch); + pspec[0] = new Pspec(); + pspec[0].range[0] = pta[0]; + pspec[0].range[1] = ptb[0]; + pspec[0].range[2] = ptb[0] - pta[0]; + pspec[1] = new Pspec(); + pspec[1].range[0] = pta[1]; + pspec[1].range[1] = ptb[1]; + pspec[1].range[2] = ptb[1] - pta[1]; + + } + + /** + * Empty constructor + * @param patchlist + * @param param + * @param mid + */ + public Patchlist(Patchlist patchlist, int param, float mid) { + // TODO Auto-generated constructor stub + // System.out.println("TODO patchlist.konstruktor 2"); + } + + /** + * Empty method + * @return 0 + */ + public int cullCheck() { + // TODO Auto-generated method stub + // System.out.println("TODO patchlist.cullcheck"); + return 0; + } + + /** + * Empty method + */ + public void getstepsize() { + // System.out.println("TODO patchlist.getsptepsize"); + // TODO Auto-generated method stub + + } + + /** + * Empty method + * @return false + */ + public boolean needsSamplingSubdivision() { + // TODO Auto-generated method stub + // System.out.println("patchlist.needsSamplingSubdivision"); + return false; + } + + /** + * Empty method + * @param i + * @return false + */ + public boolean needsSubdivision(int i) { + // TODO Auto-generated method stub + // System.out.println("TODO patchlist.needsSubdivision"); + return false; + } + + /** + * Empty method + * @return false + */ + public boolean needsNonSamplingSubdivision() { + // TODO Auto-generated method stub + // System.out.println("TODO patchlist.needsNonSamplingSubdivision"); + return false; + } + + /** + * Empty method + */ + public void bbox() { + // TODO Auto-generated method stub + // System.out.println("TODO patchlist.bbox"); + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Property.java b/src/classes/com/sun/opengl/impl/nurbs/Property.java new file mode 100755 index 000000000..e0ad1dd32 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Property.java @@ -0,0 +1,75 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class representing property + * + * @author Tomas Hrasky + * + */ +public class Property { + + /** + * Property type + */ + public int type; + + /** + * Property id + */ + public int tag; + + /** + * Property value + */ + public float value; + + /** + * Makes new property with given parameters + * + * @param type + * property type + * @param tag + * property id + * @param value + * property value + */ + public Property(int type, int tag, float value) { + this.type = type; + this.tag = tag; + this.value = value; + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Pspec.java b/src/classes/com/sun/opengl/impl/nurbs/Pspec.java new file mode 100755 index 000000000..5fc66fa82 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Pspec.java @@ -0,0 +1,47 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class holding range + * @author Tomáš Hráský + * + */ +public class Pspec { + /** + * Range + */ + public float[] range; +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/PwlArc.java b/src/classes/com/sun/opengl/impl/nurbs/PwlArc.java new file mode 100755 index 000000000..6b8255d85 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/PwlArc.java @@ -0,0 +1,71 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Picewiselinar trimming arc + * @author Tomáš Hráský + * + */ +public class PwlArc { + + /** + * Number of points + */ + private int npts; + + /** + * Vertexes + */ + public TrimVertex[] pts; + + /** + * Arc type + */ + private int type; + + /** + * Makes new trimming arc + * @param i num ber of vertexes + * @param p trimming vertexes array + */ + public PwlArc(int i, TrimVertex[] p) { + // DONE + this.npts = i; + this.pts = p; + type = NurbsConsts.N_P2D; + + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Quilt.java b/src/classes/com/sun/opengl/impl/nurbs/Quilt.java new file mode 100755 index 000000000..bc058b093 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Quilt.java @@ -0,0 +1,282 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class for converting NURBS curves and surfaces to list of bezier arcs or patches repectively + * @author Tomáš Hráský + * + */ +public class Quilt { + /** + * Maximum quilt dimension + */ + private static final int MAXDIM = 2; + + /** + * List of map descriptions + */ + Mapdesc mapdesc; + + /** + * Array of quiltspecs pointer + */ + public CArrayOfQuiltspecs qspec; + + /** + * End array of quilt specs pointer + */ + public CArrayOfQuiltspecs eqspec; + + /** + * Control points + */ + public CArrayOfFloats cpts; + + /** + * Next quilt in list + */ + public Quilt next; + + /** + * Makes new quilt with mapdesc + * @param mapdesc map description + */ + public Quilt(Mapdesc mapdesc) { + // DONE + this.mapdesc = mapdesc; + Quiltspec[] tmpquilts = new Quiltspec[MAXDIM]; + for (int i = 0; i < tmpquilts.length; i++) + tmpquilts[i] = new Quiltspec(); + this.qspec = new CArrayOfQuiltspecs(tmpquilts); + + } + + /** + * Converts NURBS surface to bezier patches + * @param sknotvector knots in u direction + * @param tknotvector knots in v direction + * @param ctrlarr control points + * @param coords control points coords + */ + public void toBezier(Knotvector sknotvector, Knotvector tknotvector, + CArrayOfFloats ctrlarr, int coords) { + Splinespec spline = new Splinespec(2); + spline.kspecinit(sknotvector, tknotvector); + spline.select(); + spline.layout(coords); + spline.setupquilt(this); + spline.copy(ctrlarr); + spline.transform(); + } + + /** + * Converts NURBS curve to list of bezier curves + * @param knots knot vector + * @param ctlarray control points + * @param ncoords number of coordinates + */ + public void toBezier(Knotvector knots, CArrayOfFloats ctlarray, int ncoords) { + // DONE + Splinespec spline = new Splinespec(1); + spline.kspecinit(knots); + spline.select(); + spline.layout(ncoords); + spline.setupquilt(this); + spline.copy(ctlarray); + spline.transform(); + } + + /** + * Walks thru all arcs/patches + * @param pta low border + * @param ptb high border + * @param backend Backend + */ + public void downloadAll(float[] pta, float[] ptb, Backend backend) { + // DONE + for (Quilt m = this; m != null; m = m.next) { + m.select(pta, ptb); + m.download(backend); + } + + } + + /** + * Renders arcs/patches + * @param backend Backend for rendering + */ + private void download(Backend backend) { + // DONE + if (getDimension() == 2) { + + CArrayOfFloats ps = new CArrayOfFloats(cpts); + ps.raisePointerBy(qspec.get(0).offset); + ps.raisePointerBy(qspec.get(1).offset); + ps.raisePointerBy(qspec.get(0).index * qspec.get(0).order + * qspec.get(0).stride); + ps.raisePointerBy(qspec.get(1).index * qspec.get(1).order + * qspec.get(1).stride); + + backend.surfpts(mapdesc.getType(), ps, qspec.get(0).stride, qspec + .get(1).stride, qspec.get(0).order, qspec.get(1).order, + qspec.get(0).breakpoints[qspec.get(0).index], + qspec.get(0).breakpoints[qspec.get(0).index + 1], qspec + .get(1).breakpoints[qspec.get(1).index], qspec + .get(1).breakpoints[qspec.get(1).index + 1]); + + } else {// code for curves + // CArrayOfFloats ps=new CArrayOfFloats(cpts); + CArrayOfFloats ps = new CArrayOfFloats(cpts.getArray(), 0); + ps.raisePointerBy(qspec.get(0).offset); + ps.raisePointerBy(qspec.get(0).index * qspec.get(0).order + * qspec.get(0).stride); + backend.curvpts(mapdesc.getType(), ps, qspec.get(0).stride, qspec + .get(0).order, + qspec.get(0).breakpoints[qspec.get(0).index], + qspec.get(0).breakpoints[qspec.get(0).index + 1]); + } + + } + + /** + * Returns quilt dimension + * @return quilt dimesion + */ + private int getDimension() { + // DONE + return eqspec.getPointer() - qspec.getPointer(); + } + + /** + * Finds Quiltspec.index + * @param pta range + * @param ptb range + */ + private void select(float[] pta, float[] ptb) { + // DONE + int dim = eqspec.getPointer() - qspec.getPointer(); + int i, j; + for (i = 0; i < dim; i++) { + for (j = qspec.get(i).width - 1; j >= 0; j--) + if (qspec.get(i).breakpoints[j] <= pta[i] + && ptb[i] <= qspec.get(i).breakpoints[j + 1]) + break; + assert (j != -1); + qspec.get(i).index = j; + } + } + + /** + * Find range according to breakpoints + * @param from low param + * @param to high param + * @param bpts breakpoints + */ + public void getRange(float[] from, float[] to, Flist bpts) { + // DONE + getRange(from, to, 0, bpts); + + } + + /** + * Find range according to breakpoints + * @param from low param + * @param to high param + * @param i from/to array index + * @param list breakpoints + */ + private void getRange(float[] from, float[] to, int i, Flist list) { + // DONE + Quilt maps = this; + from[i] = maps.qspec.get(i).breakpoints[0]; + to[i] = maps.qspec.get(i).breakpoints[maps.qspec.get(i).width]; + int maxpts = 0; + Quilt m; + for (m = maps; m != null; m = m.next) { + if (m.qspec.get(i).breakpoints[0] > from[i]) + from[i] = m.qspec.get(i).breakpoints[0]; + if (m.qspec.get(i).breakpoints[m.qspec.get(i).width] < to[i]) + to[i] = m.qspec.get(i).breakpoints[m.qspec.get(i).width]; + maxpts += m.qspec.get(i).width + 1; + } + list.grow(maxpts); + for (m = maps; m != null; m = m.next) { + for (int j = 0; j <= m.qspec.get(i).width; j++) { + list.add(m.qspec.get(i).breakpoints[j]); + } + } + list.filter(); + list.taper(from[i], to[i]); + } + + /** + * Is this quilt culled + * @return 0 or Subdivider.CULL_ACCEPT + */ + public int isCulled() { + if (mapdesc.isCulling()) { + // System.out.println("TODO quilt.isculled mapdesc.isculling"); + return 0; + } else { + return Subdivider.CULL_ACCEPT; + } + } + + /** + * Finds range for surface + * @param from low param + * @param to high param + * @param slist u direction breakpoints + * @param tlist v direction breakpoints + */ + public void getRange(float[] from, float[] to, Flist slist, Flist tlist) { + // DONE + getRange(from, to, 0, slist); + getRange(from, to, 1, tlist); + + } + + /** + * Empty method + * @param sbrkpts + * @param tbrkpts + * @param rate + */ + public void findRates(Flist sbrkpts, Flist tbrkpts, float[] rate) { + // TODO Auto-generated method stub + // System.out.println("TODO quilt.findrates"); + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Quiltspec.java b/src/classes/com/sun/opengl/impl/nurbs/Quiltspec.java new file mode 100755 index 000000000..d94986a03 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Quiltspec.java @@ -0,0 +1,85 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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 definition + * @author Tomas Hrasky + * + */ +public class Quiltspec { + + /** + * Stride between control points + */ + public int stride; + + /** + * Quilt width in breakpoints + */ + public int width; + + /** + * Quilt order + */ + public int order; + + /** + * Start offset + */ + public int offset; + + /** + * Breakpoint index + */ + public int index; + + /** + * Boundary + */ + public int[] bdry; + + /** + * Breakpoints + */ + public float[] breakpoints; + + /** + * Makes new quiltspec + */ + public Quiltspec() { + this.bdry = new int[2]; + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Renderhints.java b/src/classes/com/sun/opengl/impl/nurbs/Renderhints.java new file mode 100755 index 000000000..c571d9d88 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Renderhints.java @@ -0,0 +1,128 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class holding rendering params + * @author Tomas Hrasky + * + */ +public class Renderhints { + + /** + * Check for errors + */ + public int errorchecking; + + /** + * Maximum subdivisions + */ + public int maxsubdivisions; + + /** + * Number of subdivisions + */ + private int subdivisions; + + /** + * Display method + */ + int display_method; + + /** + * Output triangles + */ + int wiretris; + + /** + * Output quads + */ + int wirequads; + + /** + * Makes new Renderinghints + */ + public Renderhints() { + display_method = NurbsConsts.N_FILL; + errorchecking = NurbsConsts.N_MSG; + subdivisions = 6; + // tmp1=0; + } + + /** + * Set property value + * @param prop property + */ + public void setProperty(Property prop) { + switch (prop.type) { + case NurbsConsts.N_DISPLAY: + display_method = (int) prop.value; + break; + case NurbsConsts.N_ERRORCHECKING: + errorchecking = (int) prop.value; + break; + case NurbsConsts.N_SUBDIVISIONS: + subdivisions = (int) prop.value; + break; + default: + // abort - end program + break; + } + } + + /** + * Initialization + */ + public void init() { + // DONE + maxsubdivisions = subdivisions; + if (maxsubdivisions < 0) + maxsubdivisions = 0; + + if (display_method == NurbsConsts.N_FILL) { + wiretris = 0; + wirequads = 0; + } else if (display_method == NurbsConsts.N_OUTLINE_TRI) { + wiretris = 1; + wirequads = 0; + } else if (display_method == NurbsConsts.N_OUTLINE_QUAD) { + wiretris = 0; + wirequads = 1; + } else { + wiretris = 1; + wirequads = 1; + } + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Splinespec.java b/src/classes/com/sun/opengl/impl/nurbs/Splinespec.java new file mode 100755 index 000000000..35288c67d --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Splinespec.java @@ -0,0 +1,204 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * NURBS definition + * @author Tomas Hrasky + * + */ +public class Splinespec { + + /** + * Dimension + */ + private int dim; + + /** + * Knot vector specs + */ + private Knotspec kspec; + + /** + * Control points after conversion + */ + private CArrayOfFloats outcpts; + + /** + * Makes new Splinespec with given dimension + * @param i dimension + */ + public Splinespec(int i) { + // DONE + this.dim = i; + } + + /** + * Initializes knotspec according to knotvector + * @param knotvector basic knotvector + */ + public void kspecinit(Knotvector knotvector) { + // DONE + this.kspec = new Knotspec(); + kspec.inkbegin = new CArrayOfFloats(knotvector.knotlist, 0); + kspec.inkend = new CArrayOfFloats(knotvector.knotlist, + knotvector.knotcount); + kspec.prestride = knotvector.stride; + kspec.order = knotvector.order; + kspec.next = null; + } + + /** + * Initializes knotspec according to knotvector - SURFACE + * @param sknotvector knotvector in u dir + * @param tknotvector knotvector in v dir + */ + public void kspecinit(Knotvector sknotvector, Knotvector tknotvector) { + // DONE + this.kspec = new Knotspec(); + Knotspec tkspec = new Knotspec(); + + kspec.inkbegin = new CArrayOfFloats(sknotvector.knotlist, 0); + kspec.inkend = new CArrayOfFloats(sknotvector.knotlist, + sknotvector.knotcount); + kspec.prestride = sknotvector.stride; + kspec.order = sknotvector.order; + kspec.next = tkspec; + + tkspec.inkbegin = new CArrayOfFloats(tknotvector.knotlist, 0); + tkspec.inkend = new CArrayOfFloats(tknotvector.knotlist, + tknotvector.knotcount); + tkspec.prestride = tknotvector.stride; + tkspec.order = tknotvector.order; + tkspec.next = null; + } + + /** + * Preselect and select knotspecs + */ + public void select() { + // DONE + for (Knotspec knotspec = kspec; knotspec != null; knotspec = knotspec.next) { + knotspec.preselect(); + knotspec.select(); + } + + } + + /** + * Prepares for conversion + * @param ncoords number of coords + */ + public void layout(int ncoords) { + // DONE + int stride = ncoords; + for (Knotspec knotspec = kspec; knotspec != null; knotspec = knotspec.next) { + knotspec.poststride = stride; + stride *= (knotspec.bend.getPointer() - knotspec.bbegin + .getPointer()) + * knotspec.order + knotspec.postoffset; + knotspec.preoffset *= knotspec.prestride; + knotspec.prewidth *= knotspec.poststride; + knotspec.postwidth *= knotspec.poststride; + knotspec.postoffset *= knotspec.poststride; + knotspec.ncoords = ncoords; + } + outcpts = new CArrayOfFloats(new float[stride]); + + } + + /** + * Prepares quilt for conversion + * @param quilt quilt to work with + */ + public void setupquilt(Quilt quilt) { + // DONE + CArrayOfQuiltspecs qspec = new CArrayOfQuiltspecs(quilt.qspec); + quilt.eqspec = new CArrayOfQuiltspecs(qspec.getArray(), dim); + for (Knotspec knotspec = kspec; knotspec != null;) { + qspec.get().stride = knotspec.poststride; + qspec.get().width = knotspec.bend.getPointer() + - knotspec.bbegin.getPointer(); + qspec.get().order = knotspec.order; + qspec.get().offset = knotspec.postoffset; + qspec.get().index = 0; + qspec.get().bdry[0] = (knotspec.kleft.getPointer() == knotspec.kfirst + .getPointer()) ? 1 : 0; + qspec.get().bdry[1] = (knotspec.kright.getPointer() == knotspec.klast + .getPointer()) ? 1 : 0; + qspec.get().breakpoints = new float[qspec.get().width + 1]; + CArrayOfFloats k = new CArrayOfFloats(qspec.get().breakpoints, 0); + for (CArrayOfBreakpts bk = new CArrayOfBreakpts(knotspec.bbegin); bk + .getPointer() <= knotspec.bend.getPointer(); bk.pp()) { + k.set(bk.get().value); + k.pp(); + } + knotspec = knotspec.next; + if (knotspec != null) + qspec.pp(); + } + quilt.cpts = new CArrayOfFloats(outcpts); + quilt.next = null; + } + + /** + * Copies array of control points to output array + * @param ctlarray control points array + */ + public void copy(CArrayOfFloats ctlarray) { + // DONE + kspec.copy(ctlarray, outcpts); + + } + + /** + * Transforms knotspecs - conversion + */ + public void transform() { + // DONE + Knotspec knotspec; + outcpts.setPointer(0); + for (knotspec = kspec; knotspec != null; knotspec = knotspec.next) + knotspec.istransformed = false; + + for (knotspec = kspec; knotspec != null; knotspec = knotspec.next) { + for (Knotspec kspec2 = kspec; kspec2 != null; kspec2 = kspec2.next) + kspec2.kspectotrans = knotspec; + kspec.transform(outcpts); + knotspec.istransformed = true; + } + + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/Subdivider.java b/src/classes/com/sun/opengl/impl/nurbs/Subdivider.java new file mode 100755 index 000000000..b1506d6a1 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/Subdivider.java @@ -0,0 +1,1167 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Class working with curves and surfaces + * @author Tomas Hrasky + * + */ +public class Subdivider { + /** + * Cull type + */ + public static final int CULL_TRIVIAL_REJECT = 0; + + /** + * Cull type + */ + public static final int CULL_ACCEPT = 1; + + /** + * Maximum trimming arcs + */ + private static final int MAXARCS = 10; + + /** + * Linked list of Quilts + */ + Quilt qlist; + + /** + * Object holding rendering honts information + */ + private Renderhints renderhints; + + /** + * Backend object + */ + private Backend backend; + + /** + * Number of subdivisions + */ + private int subdivisions; + + /** + * U step when using domain distance sampling + */ + private float domain_distance_u_rate; + + /** + * Use domain distance sampling + */ + private int is_domain_distance_sampling; + + /** + * Initial class holding trimming arcs + */ + private Bin initialbin; + + /** + * Not used + */ + private boolean showDegenerate; + + /** + * Is triming arc type bezier arc + */ + private boolean isArcTypeBezier; + + /** + * Breakpoints in v direction + */ + private Flist tpbrkpts; + + /** + * Breakpoints in u direction + */ + private Flist spbrkpts; + + /** + * Unused + */ + private int s_index; + + /** + * Head of linked list of trimming arcs + */ + private Arc pjarc; + + /** + * Class tesselating trimming arcs + */ + private ArcTesselator arctesselator; + + /** + * Unused + */ + private int t_index; + + /** + * Breakpoints + */ + private Flist smbrkpts; + + /** + * Not used + */ + private float[] stepsizes; + + /** + * Domain distance in V direction + */ + private float domain_distance_v_rate; + + /** + * Initializes quilt list + */ + public void beginQuilts(Backend backend) { + // DONE + qlist = null; + renderhints = new Renderhints(); + this.backend = backend; + + initialbin = new Bin(); + arctesselator = new ArcTesselator(); + } + + /** + * Adds quilt to linked list + * @param quilt added quilt + */ + public void addQuilt(Quilt quilt) { + // DONE + if (qlist == null) + qlist = quilt; + else { + quilt.next = qlist; + qlist = quilt; + } + + } + + /** + * Empty method + */ + public void endQuilts() { + // DONE + } + + /** + * Draws a surface + */ + public void drawSurfaces() { + renderhints.init(); + + if (qlist == null) { + // System.out.println("qlist is null"); + return; + } + + for (Quilt q = qlist; q != null; q = q.next) { + if (q.isCulled() == CULL_TRIVIAL_REJECT) { + freejarcs(initialbin); + return; + } + } + + float[] from = new float[2]; + float[] to = new float[2]; + + spbrkpts = new Flist(); + tpbrkpts = new Flist(); + qlist.getRange(from, to, spbrkpts, tpbrkpts); + + boolean optimize = (is_domain_distance_sampling > 0 && (renderhints.display_method != NurbsConsts.N_OUTLINE_PATCH)); + + // TODO decide whether to optimize (when there is gluNurbsProperty implemented) + optimize = true; + + if (!initialbin.isnonempty()) { + if (!optimize) { + makeBorderTrim(from, to); + } + } else { + float[] rate = new float[2]; + qlist.findRates(spbrkpts, tpbrkpts, rate); + // System.out.println("subdivider.drawsurfaces decompose"); + } + + backend.bgnsurf(renderhints.wiretris, renderhints.wirequads); + + // TODO partition test + + if (!initialbin.isnonempty() && optimize) { + + int i, j; + int num_u_steps; + int num_v_steps; + for (i = spbrkpts.start; i < spbrkpts.end - 1; i++) { + for (j = tpbrkpts.start; j < tpbrkpts.end - 1; j++) { + float[] pta = new float[2]; + float[] ptb = new float[2]; + + pta[0] = spbrkpts.pts[i]; + ptb[0] = spbrkpts.pts[i + 1]; + pta[1] = tpbrkpts.pts[j]; + ptb[1] = tpbrkpts.pts[j + 1]; + qlist.downloadAll(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); + + } + } + + } else + + subdivideInS(initialbin); + + backend.endsurf(); + } + + /** + * Empty method + * @param initialbin2 + */ + private void freejarcs(Bin initialbin2) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.freejarcs"); + } + + /** + * Subdivide in U direction + * @param source Trimming arcs source + */ + private void subdivideInS(Bin source) { + // DONE + if (renderhints.display_method == NurbsConsts.N_OUTLINE_PARAM) { + outline(source); + freejarcs(source); + } else { + setArcTypeBezier(); + setNonDegenerate(); + splitInS(source, spbrkpts.start, spbrkpts.end); + } + + } + + /** + * Split in U direction + * @param source Trimming arcs source + * @param start breakpoints start + * @param end breakpoints end + */ + private void splitInS(Bin source, int start, int end) { + // DONE + if (source.isnonempty()) { + if (start != end) { + int i = start + (end - start) / 2; + Bin left = new Bin(); + Bin right = new Bin(); + + 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 == NurbsConsts.N_OUTLINE_PARAM_S) { + outline(source); + freejarcs(source); + } else { + setArcTypeBezier(); + setNonDegenerate(); + s_index = start; + splitInT(source, tpbrkpts.start, tpbrkpts.end); + } + } + } else{ + // System.out.println("Source is empty - subdivider.splitins"); + } + } + + /** + * Split in V direction + * @param source + * @param start + * @param end + */ + private void splitInT(Bin source, int start, int end) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.splitint"); + + if (source.isnonempty()) { + if (start != end) { + int i = start + (end - start) / 2; + Bin left = new Bin(); + Bin right = new Bin(); + split(source, left, right, 1, tpbrkpts.pts[i + 1]); + splitInT(left, start, i); + splitInT(right, i + 1, end); + } else { + if (start == tpbrkpts.start || start == tpbrkpts.end) { + freejarcs(source); + } else if (renderhints.display_method == NurbsConsts.N_OUTLINE_PARAM_ST) { + outline(source); + freejarcs(source); + } else { + t_index = start; + setArcTypeBezier(); + setDegenerate(); + + float[] pta = new float[2]; + float[] ptb = new float[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 = new Patchlist(qlist, pta, ptb); + + samplingSplit(source, patchlist, + renderhints.maxsubdivisions, 0); + setNonDegenerate(); + setArcTypeBezier(); + } + } + } + + } + + /** + * Sample + * @param source + * @param patchlist + * @param subdivisions + * @param param + */ + private void samplingSplit(Bin source, Patchlist patchlist, + int subdivisions, int param) { + // DONE + if (!source.isnonempty()) + return; + if (patchlist.cullCheck() == CULL_TRIVIAL_REJECT) { + freejarcs(source); + return; + } + + patchlist.getstepsize(); + if (renderhints.display_method == NurbsConsts.N_OUTLINE_PATCH) { + tesselation(source, patchlist); + outline(source); + freejarcs(source); + return; + } + + tesselation(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 = new Bin(); + Bin right = new Bin(); + + float mid = (float) ((patchlist.pspec[param].range[0] + patchlist.pspec[param].range[1]) * .5); + + split(source, left, right, param, mid); + Patchlist subpatchlist = new Patchlist(patchlist, param, mid); + samplingSplit(left, subpatchlist, subdivisions - 1, param); + samplingSplit(right, subpatchlist, subdivisions - 1, param); + } else { + setArcTypePwl(); + setDegenerate(); + nonSamplingSplit(source, patchlist, subdivisions, param); + setDegenerate(); + setArcTypeBezier(); + } + } + + /** + * Not used + * @param source + * @param patchlist + * @param subdivisions + * @param param + */ + private void nonSamplingSplit(Bin source, Patchlist patchlist, + int subdivisions, int param) { + // DONE + if (patchlist.needsNonSamplingSubdivision() && subdivisions > 0) { + param = 1 - param; + + Bin left = new Bin(); + Bin right = new Bin(); + + float mid = (float) ((patchlist.pspec[param].range[0] + patchlist.pspec[param].range[1]) * .5); + split(source, left, right, param, mid); + Patchlist subpatchlist = new Patchlist(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, subpatchlist, subdivisions - 1, + param); + } + } else { + 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 == NurbsConsts.N_OUTLINE_SUBDIV) { + outline(source); + freejarcs(source); + } else { + setArcTypePwl(); + setDegenerate(); + findIrregularS(source); + monosplitInS(source, smbrkpts.start, smbrkpts.end); + } + } + + } + + /** + * Not used + * @param source + * @param start + * @param end + */ + private void monosplitInS(Bin source, int start, int end) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.monosplitins"); + } + + /** + * Not used + * @param source + */ + private void findIrregularS(Bin source) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.findIrregularS"); + } + + /** + * Not used + */ + private void setArcTypePwl() { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.setarctypepwl"); + } + + /** + * Not used + * @param source + * @param patchlist + */ + private void tesselation(Bin source, Patchlist patchlist) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.tesselation"); + } + + /** + * Not used + */ + private void setDegenerate() { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.setdegenerate"); + } + + /** + * Not used + * @param bin + * @param left + * @param right + * @param param + * @param value + */ + private void split(Bin bin, Bin left, Bin right, int param, float value) { + // DONE + Bin intersections = new Bin(); + Bin unknown = new Bin(); + + partition(bin, left, intersections, right, unknown, param, value); + + int count = intersections.numarcs(); + // TODO jumpbuffer ?? + + if (count % 2 == 0) { + + Arc[] arclist = new Arc[MAXARCS]; + CArrayOfArcs list; + if (count >= MAXARCS) { + list = new CArrayOfArcs(new Arc[count]); + } else { + list = new CArrayOfArcs(arclist); + } + + CArrayOfArcs last, lptr; + Arc jarc; + + for (last = new CArrayOfArcs(list); (jarc = intersections + .removearc()) != null; last.pp()) + last.set(jarc); + + if (param == 0) {// sort into incrasing t order + ArcSdirSorter sorter = new ArcSdirSorter(this); + sorter.qsort(list, count); + + for (lptr = new CArrayOfArcs(list); lptr.getPointer() < last + .getPointer(); lptr.raisePointerBy(2)) + check_s(lptr.get(), lptr.getRelative(1)); + for (lptr = new CArrayOfArcs(list); lptr.getPointer() < last + .getPointer(); lptr.raisePointerBy(2)) + join_s(left, right, lptr.get(), lptr.getRelative(1)); + for (lptr = new CArrayOfArcs(list); lptr.getPointer() != last + .getPointer(); lptr.pp()) { + if (lptr.get().head()[0] <= value + && lptr.get().tail()[0] <= value) + left.addarc(lptr.get()); + else + right.addarc(lptr.get()); + } + + } else {// sort into decreasing s order + ArcTdirSorter sorter = new ArcTdirSorter(this); + sorter.qsort(list, count); + + for (lptr = new CArrayOfArcs(list); lptr.getPointer() < last + .getPointer(); lptr.raisePointerBy(2)) + check_t(lptr.get(), lptr.getRelative(1)); + for (lptr = new CArrayOfArcs(list); lptr.getPointer() < last + .getPointer(); lptr.raisePointerBy(2)) + join_t(left, right, lptr.get(), lptr.getRelative(1)); + for (lptr = new CArrayOfArcs(list); lptr.getPointer() != last + .getPointer(); lptr.raisePointerBy(2)) { + if (lptr.get().head()[0] <= value + && lptr.get().tail()[0] <= value) + left.addarc(lptr.get()); + else + right.addarc(lptr.get()); + } + + } + + unknown.adopt(); + } + } + + /** + * Not used + * @param left + * @param right + * @param arc + * @param relative + */ + private void join_t(Bin left, Bin right, Arc arc, Arc relative) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.join_t"); + } + + /** + * Not used + * @param arc + * @param relative + */ + private void check_t(Arc arc, Arc relative) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.check_t"); + } + + /** + * Not used + * @param left + * @param right + * @param jarc1 + * @param jarc2 + */ + private void join_s(Bin left, Bin right, Arc jarc1, Arc jarc2) { + // DONE + if (!jarc1.getitail()) + jarc1 = jarc1.next; + if (!jarc2.getitail()) + jarc2 = jarc2.next; + + float s = jarc1.tail()[0]; + float t1 = jarc1.tail()[1]; + float t2 = jarc2.tail()[1]; + + if (t1 == t2) { + simplelink(jarc1, jarc2); + } else { + Arc newright = new Arc(Arc.ARC_RIGHT); + Arc newleft = new Arc(Arc.ARC_LEFT); + if (isBezierArcType()) { + arctesselator.bezier(newright, s, s, t1, t2); + arctesselator.bezier(newleft, s, s, t2, t1); + } else { + arctesselator.pwl_right(newright, s, t1, t2, stepsizes[0]); + arctesselator.pwl_left(newright, s, t2, t1, stepsizes[2]); + } + link(jarc1, jarc2, newright, newleft); + left.addarc(newright); + right.addarc(newleft); + } + + } + + /** + * Not used + * @param jarc1 + * @param jarc2 + * @param newright + * @param newleft + */ + private void link(Arc jarc1, Arc jarc2, Arc newright, Arc newleft) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.link"); + } + + /** + * Not used + * @return true + */ + private boolean isBezierArcType() { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.isbezierarc"); + return true; + } + + /** + * Not used + * @param jarc1 + * @param jarc2 + */ + private void simplelink(Arc jarc1, Arc jarc2) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.simplelink"); + } + + /** + * Not used + * @param arc + * @param relative + */ + private void check_s(Arc arc, Arc relative) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.check_s"); + + } + + /** + * Not used + * @param bin + * @param left + * @param intersections + * @param right + * @param unknown + * @param param + * @param value + */ + private void partition(Bin bin, Bin left, Bin intersections, Bin right, + Bin unknown, int param, float value) { + + Bin headonleft = new Bin(); + Bin headonright = new Bin(); + Bin tailonleft = new Bin(); + Bin tailonright = new Bin(); + + for (Arc jarc = bin.removearc(); jarc != null; jarc = bin.removearc()) { + float tdiff = jarc.tail()[param] - value; + float hdiff = jarc.head()[param] - value; + + if (tdiff > 0) { + if (hdiff > 0) { + right.addarc(jarc); + } else if (hdiff == 0) { + tailonright.addarc(jarc); + } else { + Arc jtemp; + switch (arc_split(jarc, param, value, 0)) { + case 2: + tailonright.addarc(jarc); + headonleft.addarc(jarc.next); + break; + // TODO rest cases + default: + System.out + .println("TODO subdivider.partition rest cases"); + break; + } + } + } else if (tdiff == 0) { + if (hdiff > 0) { + headonright.addarc(jarc); + } else if (hdiff == 0) { + unknown.addarc(jarc); + } else { + headonright.addarc(jarc); + } + } else { + if (hdiff > 0) { + // TODO rest + // System.out.println("TODO subdivider.partition rest of else"); + } else if (hdiff == 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); + } + } + + /** + * Not used + * @param tailonright + * @param intersections + * @param right + * @param value + */ + private void classify_tailonright_t(Bin tailonright, Bin intersections, + Bin right, float value) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.classify_tailonright_t"); + + } + + /** + * Not used + * @param bin + * @param in + * @param out + * @param val + */ + private void classify_tailonleft_s(Bin bin, Bin in, Bin out, float val) { + + // DONE + Arc j; + while ((j = bin.removearc()) != null) { + j.clearitail(); + + float diff = j.next.head()[0] - val; + if (diff > 0) { + in.addarc(j); + } else if (diff < 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); + } + } + + } + + /** + * Not used + * @param bin + * @param in + * @param out + * @param val + */ + private void classify_headonright_s(Bin bin, Bin in, Bin out, float val) { + // DONE + Arc j; + while ((j = bin.removearc()) != null) { + j.setitail(); + + float diff = j.prev.tail()[0] - val; + if (diff > 0) { + if (ccwTurn_sr(j.prev, j)) + out.addarc(j); + else + in.addarc(j); + } else if (diff < 0) { + out.addarc(j); + } else { + if (j.prev.tail()[1] > j.prev.head()[1]) + out.addarc(j); + else + in.addarc(j); + } + } + } + + /** + * Not used + * @param prev + * @param j + * @return false + */ + private boolean ccwTurn_sr(Arc prev, Arc j) { + // TODO Auto-generated method stub + // System.out.println("TODO ccwTurn_sr"); + return false; + } + + /** + * Not used + * @param headonright + * @param intersections + * @param right + * @param value + */ + private void classify_headonright_t(Bin headonright, Bin intersections, + Bin right, float value) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.classify_headonright_t"); + } + + /** + * Not used + * @param tailonleft + * @param intersections + * @param left + * @param value + */ + private void classify_tailonleft_t(Bin tailonleft, Bin intersections, + Bin left, float value) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.classify_tailonleft_t"); + } + + /** + * Not used + * @param bin + * @param in + * @param out + * @param val + */ + private void classify_headonleft_t(Bin bin, Bin in, Bin out, float val) { + // DONE + Arc j; + while ((j = bin.removearc()) != null) { + j.setitail(); + + float diff = j.prev.tail()[1] - val; + if (diff > 0) { + out.addarc(j); + } else if (diff < 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); + } + } + } + + /** + * Not used + * @param prev + * @param j + * @return false + */ + private boolean ccwTurn_tl(Arc prev, Arc j) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.ccwTurn_tl"); + return false; + } + + /** + * Not used + * @param bin + * @param in + * @param out + * @param val + */ + private void classify_tailonright_s(Bin bin, Bin in, Bin out, float val) { + // DONE + Arc j; + while ((j = bin.removearc()) != null) { + j.clearitail(); + + float diff = j.next.head()[0] - val; + if (diff > 0) { + if (ccwTurn_sr(j, j.next)) + out.addarc(j); + else + in.addarc(j); + } else if (diff < 0) { + in.addarc(j); + } else { + if (j.next.tail()[1] > j.next.head()[1]) + out.addarc(j); + else + in.addarc(j); + } + } + + } + + /** + * Not used + * @param bin + * @param in + * @param out + * @param val + */ + private void classify_headonleft_s(Bin bin, Bin in, Bin out, float val) { + // DONE + Arc j; + while ((j = bin.removearc()) != null) { + j.setitail(); + + float diff = j.prev.tail()[0] - val; + if (diff > 0) { + out.addarc(j); + } else if (diff < 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); + } + } + + } + + /** + * Not used + * @param prev + * @param j + * @return false + */ + private boolean ccwTurn_sl(Arc prev, Arc j) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.ccwTurn_sl"); + return false; + } + + /** + * Not used + * @param jarc + * @param param + * @param value + * @param i + * @return 0 + */ + private int arc_split(Arc jarc, int param, float value, int i) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.arc_split"); + return 0; + } + + /** + * Not used + */ + private void setNonDegenerate() { + // DONE + this.showDegenerate = false; + + } + + /** + * sets trimming arc default type to bezier + */ + private void setArcTypeBezier() { + // DONE + isArcTypeBezier = true; + } + + /** + * Not used + * @param source + */ + private void outline(Bin source) { + // TODO Auto-generated method stub + // System.out.println("TODO subdivider.outline"); + } + + /** + * Makes default trim along surface borders + * @param from range beginnings + * @param to range ends + */ + private void makeBorderTrim(float[] from, float[] to) { + // DONE + float smin = from[0]; + float smax = to[0]; + + float tmin = from[1]; + float tmax = to[1]; + + pjarc = null; + Arc jarc = null; + + jarc = new Arc(Arc.ARC_BOTTOM); + arctesselator.bezier(jarc, smin, smax, tmin, tmin); + initialbin.addarc(jarc); + pjarc = jarc.append(pjarc); + + jarc = new Arc(Arc.ARC_RIGHT); + arctesselator.bezier(jarc, smax, smax, tmin, tmax); + initialbin.addarc(jarc); + pjarc = jarc.append(pjarc); + + jarc = new Arc(Arc.ARC_TOP); + arctesselator.bezier(jarc, smax, smin, tmax, tmax); + initialbin.addarc(jarc); + pjarc = jarc.append(pjarc); + + jarc = new Arc(Arc.ARC_LEFT); + arctesselator.bezier(jarc, smin, smin, tmax, tmin); + initialbin.addarc(jarc); + jarc = jarc.append(pjarc); + + // assert (jarc.check() == true); + } + + /** + * Draws NURBS curve + */ + public void drawCurves() { + // DONE + float[] from = new float[1]; + float[] to = new float[1]; + + Flist bpts = new Flist(); + qlist.getRange(from, to, bpts); + + renderhints.init(); + + backend.bgncurv(); + + for (int i = bpts.start; i < bpts.end - 1; i++) { + float[] pta = new float[1]; + float[] ptb = new float[1]; + pta[0] = bpts.pts[i]; + ptb[0] = bpts.pts[i + 1]; + + qlist.downloadAll(pta, ptb, backend); + Curvelist curvelist = new Curvelist(qlist, pta, ptb); + samplingSplit(curvelist, renderhints.maxsubdivisions); + } + backend.endcurv(); + } + + /** + * Samples a curve in case of need, or sends curve to backend + * @param curvelist list of curves + * @param maxsubdivisions maximum number of subdivisions + */ + private void samplingSplit(Curvelist curvelist, int maxsubdivisions) { + if (curvelist.cullCheck() == CULL_TRIVIAL_REJECT) + return; + + curvelist.getstepsize(); + + if (curvelist.needsSamplingSubdivision() && (subdivisions > 0)) { + // TODO kód + // System.out.println("TODO subdivider-needsSamplingSubdivision"); + } else { + int nu = (int) (1 + curvelist.range[2] / curvelist.stepsize); + backend.curvgrid(curvelist.range[0], curvelist.range[1], nu); + backend.curvmesh(0, nu); + } + + } + + /** + * Sets new domain_distance_u_rate value + * @param d new domain_distance_u_rate value + + */ + public void set_domain_distance_u_rate(double d) { + // DONE + domain_distance_u_rate = (float) d; + } + + /** + * Sets new domain_distance_v_rate value + * @param d new domain_distance_v_rate value + */ + public void set_domain_distance_v_rate(double d) { + // DONE + domain_distance_v_rate = (float) d; + } + + /** + * Sets new is_domain_distance_sampling value + * @param i new is_domain_distance_sampling value + */ + public void set_is_domain_distance_sampling(int i) { + // DONE + this.is_domain_distance_sampling = i; + } +} diff --git a/src/classes/com/sun/opengl/impl/nurbs/TrimVertex.java b/src/classes/com/sun/opengl/impl/nurbs/TrimVertex.java new file mode 100755 index 000000000..ec3f6fc10 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/nurbs/TrimVertex.java @@ -0,0 +1,56 @@ +package com.sun.opengl.impl.glu.nurbs; + +/* + ** 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. + */ + +/** + * Holds vertex used in trim + * + * @author Tomas Hrasky + * + */ +public class TrimVertex { + + /** + * Trim vertex coords + */ + public float[] param; + + /** + * Makes new empty trim vertex + */ + public TrimVertex() { + param = new float[2]; + } +} |