diff options
Diffstat (limited to 'mesalib/src/glu/sgi/libnurbs/internals/reader.cc')
| -rw-r--r-- | mesalib/src/glu/sgi/libnurbs/internals/reader.cc | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/reader.cc b/mesalib/src/glu/sgi/libnurbs/internals/reader.cc deleted file mode 100644 index c59240d26..000000000 --- a/mesalib/src/glu/sgi/libnurbs/internals/reader.cc +++ /dev/null @@ -1,148 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -*/ - -/* - * reader.c++ - * - */ - -#include <stdio.h> -#include "glimports.h" -#include "nurbsconsts.h" -#include "reader.h" -#include "trimvertex.h" -#include "simplemath.h" - -//when read a pwlCurve, if two consecutive points are the same, then -//eliminate one of them. This makes the tessellator more robust. The spec -//assumes the application makes sure there are no redundant points. -//but in Inspector, the trim curves seem to have redundant points a lot. -//I guess other similar users may have the same problem. - -#define ELIMINATE_REDUNDANT_POINTS - -#ifdef ELIMINATE_REDUNDANT_POINTS -#define equal(x,y) ( glu_abs(x-y) <= 0.00001) -#endif - -#ifdef ELIMINATE_REDUNDANT_POINTS -O_pwlcurve::O_pwlcurve( long _type, long count, INREAL *array, long byte_stride, TrimVertex *trimpts ) -{ - next = 0; - used = 0; - owner = 0; - pts = trimpts; - npts = (int) count; - save = 0; - int i; - - /* copy user data into internal trimming data structures */ - switch( _type ) { - case N_P2D: { - TrimVertex *v = pts; - TrimVertex *prev = NULL; - int num = 0; - int doit; - for(i=0; i<count; i++) { - doit = 1; - if(prev != NULL) - { - if(equal(prev->param[0], array[0]) && equal(prev->param[1], array[1])) - { - doit = 0; - } - } - - if(doit) - { - v->param[0] = (REAL) array[0]; - v->param[1] = (REAL) array[1]; - prev = v; - v++; - num++; - } - array = (INREAL *) (((char *) array) + byte_stride); - } - npts = num; - break; - } - case N_P2DR: { - TrimVertex *v = pts; - for( TrimVertex *lastv = v + count; v != lastv; v++ ) { - v->param[0] = (REAL) array[0] / (REAL) array[2]; - v->param[1] = (REAL) array[1] / (REAL) array[2]; - array = (INREAL *) (((char *) array) + byte_stride); - } - break; - } - } -} -#else -O_pwlcurve::O_pwlcurve( long _type, long count, INREAL *array, long byte_stride, TrimVertex *trimpts ) -{ - next = 0; - used = 0; - owner = 0; - pts = trimpts; - npts = (int) count; - save = 0; - - /* copy user data into internal trimming data structures */ - switch( _type ) { - case N_P2D: { - TrimVertex *v = pts; - for( TrimVertex *lastv = v + count; v != lastv; v++ ) { - v->param[0] = (REAL) array[0]; - v->param[1] = (REAL) array[1]; - array = (INREAL *) (((char *) array) + byte_stride); - } - break; - } - case N_P2DR: { - TrimVertex *v = pts; - for( TrimVertex *lastv = v + count; v != lastv; v++ ) { - v->param[0] = (REAL) array[0] / (REAL) array[2]; - v->param[1] = (REAL) array[1] / (REAL) array[2]; - array = (INREAL *) (((char *) array) + byte_stride); - } - break; - } - } -} -#endif - - - - - |