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 74