| 1 | /* $Id: mycode.cpp,v 1.1 2000-02-09 08:50:26 jeroen Exp $ */
|
|---|
| 2 | /*
|
|---|
| 3 | ** License Applicability. Except to the extent portions of this file are
|
|---|
| 4 | ** made subject to an alternative license as permitted in the SGI Free
|
|---|
| 5 | ** Software License B, Version 1.0 (the "License"), the contents of this
|
|---|
| 6 | ** file are subject only to the provisions of the License. You may not use
|
|---|
| 7 | ** this file except in compliance with the License. You may obtain a copy
|
|---|
| 8 | ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
|
|---|
| 9 | ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
|
|---|
| 10 | **
|
|---|
| 11 | ** http://oss.sgi.com/projects/FreeB
|
|---|
| 12 | **
|
|---|
| 13 | ** Note that, as provided in the License, the Software is distributed on an
|
|---|
| 14 | ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
|
|---|
| 15 | ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
|
|---|
| 16 | ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
|
|---|
| 17 | ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
|
|---|
| 18 | **
|
|---|
| 19 | ** Original Code. The Original Code is: OpenGL Sample Implementation,
|
|---|
| 20 | ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
|
|---|
| 21 | ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
|
|---|
| 22 | ** Copyright in any portions created by third parties is as indicated
|
|---|
| 23 | ** elsewhere herein. All Rights Reserved.
|
|---|
| 24 | **
|
|---|
| 25 | ** Additional Notice Provisions: The application programming interfaces
|
|---|
| 26 | ** established by SGI in conjunction with the Original Code are The
|
|---|
| 27 | ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
|
|---|
| 28 | ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
|
|---|
| 29 | ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
|
|---|
| 30 | ** Window System(R) (Version 1.3), released October 19, 1998. This software
|
|---|
| 31 | ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
|
|---|
| 32 | ** published by SGI, but has not been independently verified as being
|
|---|
| 33 | ** compliant with the OpenGL(R) version 1.2.1 Specification.
|
|---|
| 34 | **
|
|---|
| 35 | ** $Date: 2000-02-09 08:50:26 $ $Revision: 1.1 $
|
|---|
| 36 | */
|
|---|
| 37 | /*
|
|---|
| 38 | ** $Header: /home/ktk/tmp/odin/2007/netlabs.cvs/odin32/src/opengl/glu/nurbs/internals/mycode.cpp,v 1.1 2000-02-09 08:50:26 jeroen Exp $
|
|---|
| 39 | */
|
|---|
| 40 |
|
|---|
| 41 | #include "mymath.h"
|
|---|
| 42 |
|
|---|
| 43 | #ifdef NEEDCEILF
|
|---|
| 44 |
|
|---|
| 45 | float ceilf( float x )
|
|---|
| 46 | {
|
|---|
| 47 | if( x < 0 ) {
|
|---|
| 48 | float nx = -x;
|
|---|
| 49 | int ix = (int) nx;
|
|---|
| 50 | return (float) -ix;
|
|---|
| 51 | } else {
|
|---|
| 52 | int ix = (int) x;
|
|---|
| 53 | if( x == (float) ix ) return x;
|
|---|
| 54 | return (float) (ix+1);
|
|---|
| 55 | }
|
|---|
| 56 | }
|
|---|
| 57 |
|
|---|
| 58 | float floorf( float x )
|
|---|
| 59 | {
|
|---|
| 60 | if( x < 0 ) {
|
|---|
| 61 | float nx = -x;
|
|---|
| 62 | int ix = (int) nx;
|
|---|
| 63 | if( nx == (float) ix ) return x;
|
|---|
| 64 | return (float) -(ix+1);
|
|---|
| 65 | } else {
|
|---|
| 66 | int ix = (int) x;
|
|---|
| 67 | return (float) ix;
|
|---|
| 68 | }
|
|---|
| 69 | }
|
|---|
| 70 | #endif
|
|---|
