FreeWRL/FreeX3D  3.0.0
renderhints.cc
1 /*
2 ** License Applicability. Except to the extent portions of this file are
3 ** made subject to an alternative license as permitted in the SGI Free
4 ** Software License B, Version 1.1 (the "License"), the contents of this
5 ** file are subject only to the provisions of the License. You may not use
6 ** this file except in compliance with the License. You may obtain a copy
7 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
8 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
9 **
10 ** http://oss.sgi.com/projects/FreeB
11 **
12 ** Note that, as provided in the License, the Software is distributed on an
13 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
14 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
15 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
16 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
17 **
18 ** Original Code. The Original Code is: OpenGL Sample Implementation,
19 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
20 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
21 ** Copyright in any portions created by third parties is as indicated
22 ** elsewhere herein. All Rights Reserved.
23 **
24 ** Additional Notice Provisions: The application programming interfaces
25 ** established by SGI in conjunction with the Original Code are The
26 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
27 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
28 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
29 ** Window System(R) (Version 1.3), released October 19, 1998. This software
30 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
31 ** published by SGI, but has not been independently verified as being
32 ** compliant with the OpenGL(R) version 1.2.1 Specification.
33 */
34 
35 /*
36  * renderhints.c++
37  *
38  */
39 
40 #include "glimports.h"
41 #include "mystdio.h"
42 #include "renderhints.h"
43 #include "defines.h"
44 #include "nurbsconsts.h"
45 
46 
47 /*--------------------------------------------------------------------------
48  * Renderhints::Renderhints - set all window specific options
49  *--------------------------------------------------------------------------
50  */
51 Renderhints::Renderhints()
52 {
53  display_method = N_FILL;
54  errorchecking = N_MSG;
55  subdivisions = 6.0;
56  tmp1 = 0.0;
57 }
58 
59 void
60 Renderhints::init( void )
61 {
62  maxsubdivisions = (int) subdivisions;
63  if( maxsubdivisions < 0 ) maxsubdivisions = 0;
64 
65 
66  if( display_method == N_FILL ) {
67  wiretris = 0;
68  wirequads = 0;
69  } else if( display_method == N_OUTLINE_TRI ) {
70  wiretris = 1;
71  wirequads = 0;
72  } else if( display_method == N_OUTLINE_QUAD ) {
73  wiretris = 0;
74  wirequads = 1;
75  } else {
76  wiretris = 1;
77  wirequads = 1;
78  }
79 }
80 
81 int
82 Renderhints::isProperty( long property )
83 {
84  switch ( property ) {
85  case N_DISPLAY:
86  case N_ERRORCHECKING:
87  case N_SUBDIVISIONS:
88  case N_TMP1:
89  return 1;
90  default:
91  return 0;
92  }
93 }
94 
95 REAL
96 Renderhints::getProperty( long property )
97 {
98  switch ( property ) {
99  case N_DISPLAY:
100  return display_method;
101  case N_ERRORCHECKING:
102  return errorchecking;
103  case N_SUBDIVISIONS:
104  return subdivisions;
105  case N_TMP1:
106  return tmp1;
107  default:
108  abort();
109  return -1; //not necessary, needed to shut up compiler
110  }
111 }
112 
113 void
114 Renderhints::setProperty( long property, REAL value )
115 {
116  switch ( property ) {
117  case N_DISPLAY:
118  display_method = value;
119  break;
120  case N_ERRORCHECKING:
121  errorchecking = value;
122  break;
123  case N_SUBDIVISIONS:
124  subdivisions = value;
125  break;
126  case N_TMP1: /* unused */
127  tmp1 = value;
128  break;
129  default:
130  abort();
131  break;
132  }
133 }