Synchronize with trunk's revision r57629.
[reactos.git] / dll / opengl / glu32 / src / libnurbs / internals / uarray.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 * uarray.c++
37 *
38 */
39
40 #include "glimports.h"
41 #include "myassert.h"
42 #include "mystdio.h"
43 #include "uarray.h"
44 #include "arc.h"
45
46 Uarray::Uarray( void )
47 {
48 uarray = 0;
49 size = 0;
50 ulines = 0;
51 }
52
53 Uarray::~Uarray( void )
54 {
55 if( uarray ) delete[] uarray;
56 }
57
58 long
59 Uarray::init( REAL delta, Arc_ptr lo, Arc_ptr hi )
60 {
61 ulines = (long) ((hi->tail()[0] - lo->tail()[0])/delta) + 3;
62 if( size < ulines ) {
63 size = ulines * 2;
64 if( uarray ) delete[] uarray;
65 uarray = new REAL[size];
66 assert( uarray != 0);
67 }
68 uarray[0] = lo->tail()[0] - delta/2.0;
69 for( long i = 1 ; i != ulines; i++ )
70 uarray[i] = uarray[0] + i*delta;
71 return ulines;
72 }
73