aboutsummaryrefslogtreecommitdiff
path: root/mesalib/src/glu/sgi/libnurbs/internals/mapdescv.cc
diff options
context:
space:
mode:
Diffstat (limited to 'mesalib/src/glu/sgi/libnurbs/internals/mapdescv.cc')
-rw-r--r--mesalib/src/glu/sgi/libnurbs/internals/mapdescv.cc243
1 files changed, 0 insertions, 243 deletions
diff --git a/mesalib/src/glu/sgi/libnurbs/internals/mapdescv.cc b/mesalib/src/glu/sgi/libnurbs/internals/mapdescv.cc
deleted file mode 100644
index 35b38b141..000000000
--- a/mesalib/src/glu/sgi/libnurbs/internals/mapdescv.cc
+++ /dev/null
@@ -1,243 +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.
-*/
-
-/*
- * mapdescv.c++
- *
- */
-
-#include "glimports.h"
-#include "mystdio.h"
-#include "myassert.h"
-#include "mystring.h"
-#include "mymath.h"
-#include "nurbsconsts.h"
-#include "mapdesc.h"
-
-/*--------------------------------------------------------------------------
- * calcPartialVelocity - calculate maximum magnitude of a given partial
- * derivative
- *--------------------------------------------------------------------------
- */
-REAL
-Mapdesc::calcPartialVelocity (
- REAL *p,
- int stride,
- int ncols,
- int partial,
- REAL range )
-{
- REAL tmp[MAXORDER][MAXCOORDS];
- REAL mag[MAXORDER];
-
- assert( ncols <= MAXORDER );
-
- int j, k, t;
- // copy inhomogeneous control points into temporary array
- for( j=0; j != ncols; j++ )
- for( k=0; k != inhcoords; k++ )
- tmp[j][k] = p[j*stride + k];
-
- for( t=0; t != partial; t++ )
- for( j=0; j != ncols-t-1; j++ )
- for( k=0; k != inhcoords; k++ )
- tmp[j][k] = tmp[j+1][k] - tmp[j][k];
-
- // compute magnitude and store in mag array
- for( j=0; j != ncols-partial; j++ ) {
- mag[j] = 0.0;
- for( k=0; k != inhcoords; k++ )
- mag[j] += tmp[j][k] * tmp[j][k];
- }
-
- // compute scale factor
- REAL fac = 1;
- REAL invt = 1.0 / range;
- for( t = ncols-1; t != ncols-1-partial; t-- )
- fac *= t * invt;
-
- // compute max magnitude of all entries in array
- REAL max = 0.0;
- for( j=0; j != ncols-partial; j++ )
- if( mag[j] > max ) max = mag[j];
- max = fac * sqrtf( (float) max );
-
- return max;
-}
-
-/*--------------------------------------------------------------------------
- * calcPartialVelocity - calculate maximum magnitude of a given partial
- * derivative
- *--------------------------------------------------------------------------
- */
-REAL
-Mapdesc::calcPartialVelocity (
- REAL *dist,
- REAL *p,
- int rstride,
- int cstride,
- int nrows,
- int ncols,
- int spartial,
- int tpartial,
- REAL srange,
- REAL trange,
- int side )
-{
- REAL tmp[MAXORDER][MAXORDER][MAXCOORDS];
- REAL mag[MAXORDER][MAXORDER];
-
- assert( nrows <= MAXORDER );
- assert( ncols <= MAXORDER );
-
- REAL *tp = &tmp[0][0][0];
- REAL *mp = &mag[0][0];
- const int istride = sizeof( tmp[0]) / sizeof( tmp[0][0][0] );
- const int jstride = sizeof( tmp[0][0]) / sizeof( tmp[0][0][0] );
- /*
- const int kstride = sizeof( tmp[0][0][0]) / sizeof( tmp[0][0][0] );
- */
- const int mistride = sizeof( mag[0]) / sizeof( mag[0][0] );
- const int mjstride = sizeof( mag[0][0]) / sizeof( mag[0][0] );
- const int idist = nrows * istride;
- const int jdist = ncols * jstride;
- /*
- const int kdist = inhcoords * kstride;
- */
- const int id = idist - spartial * istride;
- const int jd = jdist - tpartial * jstride;
-
- {
- // copy control points
- REAL *ti = tp;
- REAL *qi = p;
- REAL *til = tp + idist;
- for( ; ti != til; ) {
- REAL *tj = ti;
- REAL *qj = qi;
- REAL *tjl = ti + jdist;
- for( ; tj != tjl; ) {
- for( int k=0; k != inhcoords; k++ ) {
- tj[k] = qj[k];
- }
- tj += jstride;
- qj += cstride;
- }
- ti += istride;
- qi += rstride;
- }
- }
-
- {
- // compute (s)-partial derivative control points
- REAL *til = tp + idist - istride;
- const REAL *till = til - ( spartial * istride );
- for( ; til != till; til -= istride )
- for( REAL *ti = tp; ti != til; ti += istride )
- for( REAL *tj = ti, *tjl = tj + jdist; tj != tjl; tj += jstride )
- for( int k=0; k != inhcoords; k++ )
- tj[k] = tj[k+istride] - tj[k];
- }
-
- {
- // compute (s,t)-partial derivative control points
- REAL *tjl = tp + jdist - jstride;
- const REAL *tjll = tjl - ( tpartial * jstride );
- for( ; tjl != tjll; tjl -= jstride )
- for( REAL *tj = tp; tj != tjl; tj += jstride )
- for( REAL *ti = tj, *til = ti + id; ti != til; ti += istride )
- for( int k=0; k != inhcoords; k++ )
- ti[k] = ti[k+jstride] - ti[k];
-
- }
-
- REAL max = 0.0;
- {
- // compute magnitude and store in mag array
- memset( (void *) mp, 0, sizeof( mag ) );
- for( REAL *ti = tp, *mi = mp, *til = tp + id; ti != til; ti += istride, mi += mistride )
- for( REAL *tj = ti, *mj = mi, *tjl = ti + jd; tj != tjl; tj += jstride, mj += mjstride ) {
- for( int k=0; k != inhcoords; k++ )
- *mj += tj[k] * tj[k];
- if( *mj > max ) max = *mj;
- }
-
- }
-
- int i, j;
-
- // compute scale factor
- REAL fac = 1.0;
- {
- REAL invs = 1.0 / srange;
- REAL invt = 1.0 / trange;
- for( int s = nrows-1, slast = s-spartial; s != slast; s-- )
- fac *= s * invs;
- for( int t = ncols-1, tlast = t-tpartial; t != tlast; t-- )
- fac *= t * invt;
- }
-
- if( side == 0 ) {
- // compute max magnitude of first and last column
- dist[0] = 0.0;
- dist[1] = 0.0;
- for( i=0; i != nrows-spartial; i++ ) {
- j = 0;
- if( mag[i][j] > dist[0] ) dist[0] = mag[i][j];
-
- j = ncols-tpartial-1;
- if( mag[i][j] > dist[1] ) dist[1] = mag[i][j];
- }
- dist[0] = fac * sqrtf( dist[0] );
- dist[1] = fac * sqrtf( dist[1] );
- } else if( side == 1 ) {
- // compute max magnitude of first and last row
- dist[0] = 0.0;
- dist[1] = 0.0;
- for( j=0; j != ncols-tpartial; j++ ) {
- i = 0;
- if( mag[i][j] > dist[0] ) dist[0] = mag[i][j];
-
- i = nrows-spartial-1;
- if( mag[i][j] > dist[1] ) dist[1] = mag[i][j];
- }
- dist[0] = fac * sqrtf( dist[0] );
- dist[1] = fac * sqrtf( dist[1] );
- }
-
- max = fac * sqrtf( (float) max );
-
- return max;
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-20 09:02:25 +0000