| 1 | /* $Id: glinterface.cpp,v 1.3 2000-03-11 09:05:02 jeroen Exp $ */
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| 2 | /*
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| 3 | ** License Applicability. Except to the extent portions of this file are
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| 4 | ** made subject to an alternative license as permitted in the SGI Free
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| 5 | ** Software License B, Version 1.0 (the "License"), the contents of this
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| 6 | ** file are subject only to the provisions of the License. You may not use
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| 7 | ** this file except in compliance with the License. You may obtain a copy
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| 8 | ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
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| 9 | ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
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| 10 | **
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| 11 | ** http://oss.sgi.com/projects/FreeB
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| 12 | **
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| 13 | ** Note that, as provided in the License, the Software is distributed on an
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| 14 | ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
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| 15 | ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
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| 16 | ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
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| 17 | ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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| 18 | **
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| 19 | ** Original Code. The Original Code is: OpenGL Sample Implementation,
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| 20 | ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
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| 21 | ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
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| 22 | ** Copyright in any portions created by third parties is as indicated
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| 23 | ** elsewhere herein. All Rights Reserved.
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| 24 | **
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| 25 | ** Additional Notice Provisions: The application programming interfaces
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| 26 | ** established by SGI in conjunction with the Original Code are The
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| 27 | ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
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| 28 | ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
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| 29 | ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
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| 30 | ** Window System(R) (Version 1.3), released October 19, 1998. This software
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| 31 | ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
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| 32 | ** published by SGI, but has not been independently verified as being
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| 33 | ** compliant with the OpenGL(R) version 1.2.1 Specification.
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| 34 | **
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| 35 | ** $Date: 2000-03-11 09:05:02 $ $Revision: 1.3 $
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| 36 | */
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| 37 | /*
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| 38 | ** $Header: /home/ktk/tmp/odin/2007/netlabs.cvs/odin32/src/opengl/glu/nurbs/interface/glinterface.cpp,v 1.3 2000-03-11 09:05:02 jeroen Exp $
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| 39 | */
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| 40 |
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| 41 | #include "gluos.h"
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| 42 | #include "gl.h"
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| 43 | #include "glu.h"
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| 44 | #include <stdio.h>
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| 45 | #include "glimports.h"
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| 46 | #include "glrenderer.h"
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| 47 | #include "nurbsconsts.h"
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| 48 |
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| 49 | //#define DOWN_LOAD_NURBS
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| 50 | #ifdef DOWN_LOAD_NURBS
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| 51 |
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| 52 | #include "oglTrimNurbs.h"
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| 53 | static int surfcount = 0;
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| 54 | static oglTrimNurbs* otn = NULL;
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| 55 | nurbSurf* tempNurb = NULL;
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| 56 | oglTrimLoops* tempTrim = NULL;
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| 57 | #endif
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| 58 |
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| 59 |
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| 60 | //for LOD
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| 61 | extern "C" {void glu_LOD_eval_list(GLUnurbs *nurb, int level);}
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| 62 |
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| 63 | void glu_LOD_eval_list(GLUnurbs *nurb, int level)
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| 64 | {
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| 65 | nurb->LOD_eval_list(level);
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| 66 | }
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| 67 |
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| 68 | GLUnurbs * GLAPI
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| 69 | gluNewNurbsRenderer(void)
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| 70 | {
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| 71 | GLUnurbs *t;
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| 72 |
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| 73 | t = new GLUnurbs();
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| 74 | return t;
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| 75 | }
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| 76 |
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| 77 | void GLAPI
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| 78 | gluDeleteNurbsRenderer(GLUnurbs *r)
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| 79 | {
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| 80 | delete r;
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| 81 | }
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| 82 |
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| 83 | extern "C"
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| 84 | void GLAPI
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| 85 |
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| 86 | gluDeleteNurbsTessellatorEXT(GLUnurbsObj *r)
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| 87 | {
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| 88 | delete r;
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| 89 | }
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| 90 |
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| 91 | void GLAPI
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| 92 | gluBeginSurface(GLUnurbs *r)
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| 93 | {
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| 94 | #ifdef DOWN_LOAD_NURBS
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| 95 | surfcount++;
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| 96 | tempTrim = OTL_make(10,10);
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| 97 | #endif
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| 98 | r->bgnsurface(0);
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| 99 | }
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| 100 |
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| 101 | void GLAPI
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| 102 | gluBeginCurve(GLUnurbs *r)
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| 103 | {
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| 104 | r->bgncurve(0);
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| 105 | }
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| 106 |
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| 107 | void GLAPI
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| 108 | gluEndCurve(GLUnurbs *r)
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| 109 | {
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| 110 | r->endcurve();
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| 111 | }
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| 112 |
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| 113 | void GLAPI
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| 114 | gluEndSurface(GLUnurbs *r)
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| 115 | {
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| 116 | #ifdef DOWN_LOAD_NURBS
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| 117 | if(surfcount == 1)
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| 118 | otn = OTN_make(1);
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| 119 | OTN_insert(otn, tempNurb, tempTrim);
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| 120 | if(surfcount >= 1)
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| 121 | {
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| 122 | #ifdef DEBUG
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| 123 | printf("write file\n");
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| 124 | #endif
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| 125 | OTN_write(otn, "out.otn");
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| 126 |
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| 127 | }
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| 128 | #endif
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| 129 |
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| 130 | r->endsurface();
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| 131 | }
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| 132 |
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| 133 | void GLAPI
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| 134 | gluBeginTrim(GLUnurbs *r)
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| 135 | {
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| 136 | #ifdef DOWN_LOAD_NURBS
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| 137 | OTL_bgnTrim(tempTrim);
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| 138 | #endif
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| 139 |
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| 140 | r->bgntrim();
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| 141 | }
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| 142 |
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| 143 | void GLAPI
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| 144 | gluEndTrim(GLUnurbs *r)
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| 145 | {
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| 146 | #ifdef DOWN_LOAD_NURBS
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| 147 | OTL_endTrim(tempTrim);
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| 148 | #endif
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| 149 | r->endtrim();
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| 150 | }
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| 151 |
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| 152 | void GLAPI
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| 153 | gluPwlCurve(GLUnurbs *r, GLint count, INREAL array[],
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| 154 | GLint stride, GLenum type)
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| 155 | {
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| 156 | #ifdef DOWN_LOAD_NURBS
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| 157 | OTL_pwlCurve(tempTrim, count, array, stride, type);
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| 158 | #endif
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| 159 |
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| 160 | int realType;
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| 161 | switch(type) {
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| 162 | case GLU_MAP1_TRIM_2:
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| 163 | realType = N_P2D;
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| 164 | break;
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| 165 | case GLU_MAP1_TRIM_3:
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| 166 | realType = N_P2DR;
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| 167 | break;
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| 168 | default:
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| 169 | realType = type;
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| 170 | break;
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| 171 | }
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| 172 | r->pwlcurve(count, array, sizeof(INREAL) * stride, realType);
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| 173 | }
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| 174 |
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| 175 | void GLAPI
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| 176 | gluNurbsCurve(GLUnurbs *r, GLint nknots, INREAL knot[], GLint stride,
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| 177 | INREAL ctlarray[], GLint order, GLenum type)
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| 178 | {
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| 179 | #ifdef DOWN_LOAD_NURBS
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| 180 | OTL_nurbsCurve(tempTrim, nknots, knot, stride, ctlarray, order, type);
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| 181 | #endif
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| 182 |
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| 183 | int realType;
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| 184 |
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| 185 | switch(type) {
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| 186 | case GLU_MAP1_TRIM_2:
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| 187 | realType = N_P2D;
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| 188 | break;
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| 189 | case GLU_MAP1_TRIM_3:
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| 190 | realType = N_P2DR;
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| 191 | break;
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| 192 | default:
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| 193 | realType = type;
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| 194 | break;
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| 195 | }
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| 196 |
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| 197 | r->nurbscurve(nknots, knot, sizeof(INREAL) * stride, ctlarray, order,
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| 198 | realType);
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| 199 | }
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| 200 |
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| 201 | void GLAPI
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| 202 | gluNurbsSurface(GLUnurbs *r, GLint sknot_count, GLfloat *sknot,
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| 203 | GLint tknot_count, GLfloat *tknot,
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| 204 | GLint s_stride, GLint t_stride,
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| 205 | GLfloat *ctlarray, GLint sorder, GLint torder,
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| 206 | GLenum type)
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| 207 | {
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| 208 | #ifdef DOWN_LOAD_NURBS
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| 209 | {
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| 210 | int dimension;
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| 211 | switch(type){
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| 212 | case GL_MAP2_VERTEX_3:
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| 213 | dimension = 3;
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| 214 | break;
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| 215 | case GL_MAP2_VERTEX_4:
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| 216 | dimension = 4;
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| 217 | break;
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| 218 | default:
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| 219 | fprintf(stderr, "error in glinterface.c++, type no implemented\n");
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| 220 | exit(1);
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| 221 | }
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| 222 | tempNurb = nurbSurfMake(sknot_count, sknot,
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| 223 | tknot_count, tknot,
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| 224 | sorder, torder,
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| 225 | dimension,
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| 226 | ctlarray,
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| 227 | s_stride, t_stride);
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| 228 |
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| 229 | }
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| 230 | #endif
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| 231 |
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| 232 | r->nurbssurface(sknot_count, sknot, tknot_count, tknot,
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| 233 | sizeof(INREAL) * s_stride, sizeof(INREAL) * t_stride,
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| 234 | ctlarray, sorder, torder, type);
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| 235 | }
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| 236 |
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| 237 | void GLAPI
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| 238 | gluLoadSamplingMatrices(GLUnurbs *r, const GLfloat modelMatrix[16],
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| 239 | const GLfloat projMatrix[16],
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| 240 | const GLint viewport[4])
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| 241 | {
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| 242 | r->useGLMatrices(modelMatrix, projMatrix, viewport);
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| 243 | }
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| 244 |
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| 245 | void GLAPI
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| 246 | gluNurbsProperty(GLUnurbs *r, GLenum property, GLfloat value)
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| 247 | {
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| 248 | GLfloat nurbsValue;
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| 249 |
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| 250 | switch (property) {
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| 251 | case GLU_AUTO_LOAD_MATRIX:
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| 252 | r->setautoloadmode(value);
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| 253 | return;
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| 254 |
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| 255 | case GLU_CULLING:
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| 256 | if (value != 0.0) {
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| 257 | nurbsValue = N_CULLINGON;
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| 258 | } else {
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| 259 | nurbsValue = N_NOCULLING;
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| 260 | }
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| 261 | r->setnurbsproperty(GL_MAP2_VERTEX_3, N_CULLING, nurbsValue);
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| 262 | r->setnurbsproperty(GL_MAP2_VERTEX_4, N_CULLING, nurbsValue);
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| 263 | r->setnurbsproperty(GL_MAP1_VERTEX_3, N_CULLING, nurbsValue);
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| 264 | r->setnurbsproperty(GL_MAP1_VERTEX_4, N_CULLING, nurbsValue);
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| 265 | return;
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| 266 |
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| 267 | case GLU_SAMPLING_METHOD:
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| 268 | if (value == GLU_PATH_LENGTH) {
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| 269 | nurbsValue = N_PATHLENGTH;
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| 270 | } else if (value == GLU_PARAMETRIC_ERROR) {
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| 271 | nurbsValue = N_PARAMETRICDISTANCE;
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| 272 | } else if (value == GLU_DOMAIN_DISTANCE) {
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| 273 | nurbsValue = N_DOMAINDISTANCE;
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| 274 | r->set_is_domain_distance_sampling(1); //optimzing untrimmed case
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| 275 |
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| 276 | } else if (value == GLU_OBJECT_PARAMETRIC_ERROR) {
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| 277 | nurbsValue = N_OBJECTSPACE_PARA;
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| 278 | r->setautoloadmode( 0.0 );
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| 279 | r->setSamplingMatrixIdentity();
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| 280 | } else if (value == GLU_OBJECT_PATH_LENGTH) {
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| 281 | nurbsValue = N_OBJECTSPACE_PATH;
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| 282 | r->setautoloadmode( 0.0 );
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| 283 | r->setSamplingMatrixIdentity();
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| 284 | } else {
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| 285 | r->postError(GLU_INVALID_VALUE);
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| 286 | return;
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| 287 | }
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| 288 |
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| 289 | r->setnurbsproperty(GL_MAP2_VERTEX_3, N_SAMPLINGMETHOD, nurbsValue);
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| 290 | r->setnurbsproperty(GL_MAP2_VERTEX_4, N_SAMPLINGMETHOD, nurbsValue);
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| 291 | r->setnurbsproperty(GL_MAP1_VERTEX_3, N_SAMPLINGMETHOD, nurbsValue);
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| 292 | r->setnurbsproperty(GL_MAP1_VERTEX_4, N_SAMPLINGMETHOD, nurbsValue);
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| 293 | return;
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| 294 |
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| 295 | case GLU_SAMPLING_TOLERANCE:
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| 296 | r->setnurbsproperty(GL_MAP2_VERTEX_3, N_PIXEL_TOLERANCE, value);
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| 297 | r->setnurbsproperty(GL_MAP2_VERTEX_4, N_PIXEL_TOLERANCE, value);
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| 298 | r->setnurbsproperty(GL_MAP1_VERTEX_3, N_PIXEL_TOLERANCE, value);
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| 299 | r->setnurbsproperty(GL_MAP1_VERTEX_4, N_PIXEL_TOLERANCE, value);
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| 300 | return;
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| 301 |
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| 302 | case GLU_PARAMETRIC_TOLERANCE:
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| 303 | r->setnurbsproperty(GL_MAP2_VERTEX_3, N_ERROR_TOLERANCE, value);
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| 304 | r->setnurbsproperty(GL_MAP2_VERTEX_4, N_ERROR_TOLERANCE, value);
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| 305 | r->setnurbsproperty(GL_MAP1_VERTEX_3, N_ERROR_TOLERANCE, value);
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| 306 | r->setnurbsproperty(GL_MAP1_VERTEX_4, N_ERROR_TOLERANCE, value);
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| 307 | return;
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| 308 |
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| 309 |
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| 310 | case GLU_DISPLAY_MODE:
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| 311 |
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| 312 | if (value == GLU_FILL) {
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| 313 | nurbsValue = N_FILL;
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| 314 | } else if (value == GLU_OUTLINE_POLYGON) {
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| 315 | nurbsValue = N_OUTLINE_POLY;
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| 316 | } else if (value == GLU_OUTLINE_PATCH) {
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| 317 | nurbsValue = N_OUTLINE_PATCH;
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| 318 | } else {
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| 319 | r->postError(GLU_INVALID_VALUE);
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| 320 | return;
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| 321 | }
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| 322 | r->setnurbsproperty(N_DISPLAY, nurbsValue);
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| 323 |
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| 324 | break;
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| 325 |
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| 326 | case GLU_U_STEP:
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| 327 | r->setnurbsproperty(GL_MAP1_VERTEX_3, N_S_STEPS, value);
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| 328 | r->setnurbsproperty(GL_MAP1_VERTEX_4, N_S_STEPS, value);
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| 329 | r->setnurbsproperty(GL_MAP2_VERTEX_3, N_S_STEPS, value);
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| 330 | r->setnurbsproperty(GL_MAP2_VERTEX_4, N_S_STEPS, value);
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| 331 |
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| 332 | //added for optimizing untrimmed case
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| 333 | r->set_domain_distance_u_rate(value);
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| 334 | break;
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| 335 |
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| 336 | case GLU_V_STEP:
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| 337 | r->setnurbsproperty(GL_MAP1_VERTEX_3, N_T_STEPS, value);
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| 338 | r->setnurbsproperty(GL_MAP1_VERTEX_4, N_T_STEPS, value);
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| 339 | r->setnurbsproperty(GL_MAP2_VERTEX_3, N_T_STEPS, value);
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| 340 | r->setnurbsproperty(GL_MAP2_VERTEX_4, N_T_STEPS, value);
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| 341 |
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| 342 | //added for optimizing untrimmed case
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| 343 | r->set_domain_distance_v_rate(value);
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| 344 | break;
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| 345 |
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| 346 | case GLU_NURBS_MODE:
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| 347 | if(value == GLU_NURBS_RENDERER)
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| 348 | r->put_callbackFlag(0);
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| 349 | else if(value == GLU_NURBS_TESSELLATOR)
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| 350 | r->put_callbackFlag(1);
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| 351 | else
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| 352 | r->postError(GLU_INVALID_ENUM);
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| 353 | break;
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| 354 |
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| 355 | default:
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| 356 | r->postError(GLU_INVALID_ENUM);
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| 357 | return;
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| 358 | }
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| 359 | }
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| 360 |
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| 361 | void GLAPI
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| 362 | gluGetNurbsProperty(GLUnurbs *r, GLenum property, GLfloat *value)
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| 363 | {
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| 364 | GLfloat nurbsValue;
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| 365 |
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| 366 | switch(property) {
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| 367 | case GLU_AUTO_LOAD_MATRIX:
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| 368 | if (r->getautoloadmode()) {
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| 369 | *value = GL_TRUE;
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| 370 | } else {
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| 371 | *value = GL_FALSE;
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| 372 | }
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| 373 | break;
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| 374 | case GLU_CULLING:
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| 375 | r->getnurbsproperty(GL_MAP2_VERTEX_3, N_CULLING, &nurbsValue);
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| 376 | if (nurbsValue == N_CULLINGON) {
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| 377 | *value = GL_TRUE;
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| 378 | } else {
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| 379 | *value = GL_FALSE;
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| 380 | }
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| 381 | break;
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| 382 | case GLU_SAMPLING_METHOD:
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| 383 | r->getnurbsproperty(GL_MAP2_VERTEX_3, N_SAMPLINGMETHOD, value);
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| 384 | if(*value == N_PATHLENGTH)
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| 385 | *value = GLU_PATH_LENGTH;
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| 386 | else if(*value == N_PARAMETRICDISTANCE)
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| 387 | *value = GLU_PARAMETRIC_ERROR;
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| 388 | else if(*value == N_DOMAINDISTANCE)
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| 389 | *value = GLU_DOMAIN_DISTANCE;
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| 390 | else if(*value == N_OBJECTSPACE_PATH)
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| 391 | *value = GLU_OBJECT_PATH_LENGTH;
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| 392 | else if(*value == N_OBJECTSPACE_PARA)
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| 393 | *value = GLU_OBJECT_PARAMETRIC_ERROR;
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| 394 | break;
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| 395 | case GLU_SAMPLING_TOLERANCE:
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| 396 | r->getnurbsproperty(GL_MAP2_VERTEX_3, N_PIXEL_TOLERANCE, value);
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| 397 | break;
|
|---|
| 398 | case GLU_PARAMETRIC_TOLERANCE:
|
|---|
| 399 | r->getnurbsproperty(GL_MAP2_VERTEX_3, N_ERROR_TOLERANCE, value);
|
|---|
| 400 | break;
|
|---|
| 401 |
|
|---|
| 402 | case GLU_U_STEP:
|
|---|
| 403 | r->getnurbsproperty(GL_MAP2_VERTEX_3, N_S_STEPS, value);
|
|---|
| 404 | break;
|
|---|
| 405 | case GLU_V_STEP:
|
|---|
| 406 | r->getnurbsproperty(GL_MAP2_VERTEX_3, N_T_STEPS, value);
|
|---|
| 407 | break;
|
|---|
| 408 | case GLU_DISPLAY_MODE:
|
|---|
| 409 | r->getnurbsproperty(N_DISPLAY, &nurbsValue);
|
|---|
| 410 | if (nurbsValue == N_FILL) {
|
|---|
| 411 | *value = GLU_FILL;
|
|---|
| 412 | } else if (nurbsValue == N_OUTLINE_POLY) {
|
|---|
| 413 | *value = GLU_OUTLINE_POLYGON;
|
|---|
| 414 | } else {
|
|---|
| 415 | *value = GLU_OUTLINE_PATCH;
|
|---|
| 416 | }
|
|---|
| 417 | break;
|
|---|
| 418 |
|
|---|
| 419 | case GLU_NURBS_MODE:
|
|---|
| 420 | if(r->is_callback())
|
|---|
| 421 | *value = GLU_NURBS_TESSELLATOR;
|
|---|
| 422 | else
|
|---|
| 423 | *value = GLU_NURBS_RENDERER;
|
|---|
| 424 | break;
|
|---|
| 425 |
|
|---|
| 426 | default:
|
|---|
| 427 | r->postError(GLU_INVALID_ENUM);
|
|---|
| 428 | return;
|
|---|
| 429 | }
|
|---|
| 430 | }
|
|---|
| 431 |
|
|---|
| 432 | GLUAPI void GLAPIENTRY gluNurbsCallback( GLUnurbsObj *nobj, GLenum which,
|
|---|
| 433 | void (GLCALLBACK *fn)() )
|
|---|
| 434 | {
|
|---|
| 435 | switch (which) {
|
|---|
| 436 | case GLU_NURBS_BEGIN:
|
|---|
| 437 | case GLU_NURBS_END:
|
|---|
| 438 | case GLU_NURBS_VERTEX:
|
|---|
| 439 | case GLU_NURBS_NORMAL:
|
|---|
| 440 | case GLU_NURBS_TEXTURE_COORD:
|
|---|
| 441 | case GLU_NURBS_COLOR:
|
|---|
| 442 | case GLU_NURBS_BEGIN_DATA:
|
|---|
| 443 | case GLU_NURBS_END_DATA:
|
|---|
| 444 | case GLU_NURBS_VERTEX_DATA:
|
|---|
| 445 | case GLU_NURBS_NORMAL_DATA:
|
|---|
| 446 | case GLU_NURBS_TEXTURE_COORD_DATA:
|
|---|
| 447 | case GLU_NURBS_COLOR_DATA:
|
|---|
| 448 | nobj->putSurfCallBack(which, (GLvoid (* GLCALLBACK)(...))fn);
|
|---|
| 449 | break;
|
|---|
| 450 |
|
|---|
| 451 | case GLU_NURBS_ERROR:
|
|---|
| 452 | nobj->errorCallback = (void (* GLCALLBACK)( GLenum )) fn;
|
|---|
| 453 | break;
|
|---|
| 454 | default:
|
|---|
| 455 | nobj->postError(GLU_INVALID_ENUM);
|
|---|
| 456 | return;
|
|---|
| 457 | }
|
|---|
| 458 | }
|
|---|
| 459 |
|
|---|
| 460 | extern "C"
|
|---|
| 461 | void GLAPI
|
|---|
| 462 | gluNurbsCallbackDataEXT(GLUnurbs* r, void* userData)
|
|---|
| 463 | {
|
|---|
| 464 | r->setNurbsCallbackData(userData);
|
|---|
| 465 | }
|
|---|
| 466 |
|
|---|
| 467 | extern "C"
|
|---|
| 468 | void GLAPI
|
|---|
| 469 | gluNurbsCallbackData(GLUnurbs* r, void* userData)
|
|---|
| 470 | {
|
|---|
| 471 | gluNurbsCallbackDataEXT(r,userData);
|
|---|
| 472 | }
|
|---|
