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-/*
-** 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.
-*/
-
-/*
- * mapdesc.h
- *
- * $Date: 2004/03/14 08:29:10 $ $Revision: 1.1.1.4 $
- * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mapdesc.h,v 1.1.1.4 2004/03/14 08:29:10 eich Exp $
- */
-
-#ifndef __glumapdesc_h_
-#define __glumapdesc_h_
-
-#include "mystdio.h"
-#include "types.h"
-#include "defines.h"
-#include "bufpool.h"
-#include "nurbsconsts.h"
-
-typedef REAL Maxmatrix[MAXCOORDS][MAXCOORDS];
-
-class Backend;
-
-class Mapdesc : public PooledObj {
- friend class Maplist;
-
-public:
- Mapdesc( long, int, int, Backend & );
- int isProperty( long );
- REAL getProperty( long );
- void setProperty( long, REAL );
- int isConstantSampling( void );
- int isDomainSampling( void );
- int isRangeSampling( void );
- int isSampling( void );
- int isParametricDistanceSampling( void );
- int isObjectSpaceParaSampling( void );
- int isObjectSpacePathSampling( void );
- int isSurfaceAreaSampling( void );
- int isPathLengthSampling( void );
- int isCulling( void );
- int isBboxSubdividing( void );
- long getType( void );
-
- /* curve routines */
- void subdivide( REAL *, REAL *, REAL, int, int );
- int cullCheck( REAL *, int, int );
- void xformBounding( REAL *, int, int, REAL *, int );
- void xformCulling( REAL *, int, int, REAL *, int );
- void xformSampling( REAL *, int, int, REAL *, int );
- void xformMat( Maxmatrix, REAL *, int, int, REAL *, int );
- REAL calcPartialVelocity ( REAL *, int, int, int, REAL );
- int project( REAL *, int, REAL *, int, int );
- REAL calcVelocityRational( REAL *, int, int );
- REAL calcVelocityNonrational( REAL *, int, int );
-
- /* surface routines */
- void subdivide( REAL *, REAL *, REAL, int, int, int, int );
- int cullCheck( REAL *, int, int, int, int );
- void xformBounding( REAL *, int, int, int, int, REAL *, int, int );
- void xformCulling( REAL *, int, int, int, int, REAL *, int, int );
- void xformSampling( REAL *, int, int, int, int, REAL *, int, int );
- void xformMat( Maxmatrix, REAL *, int, int, int, int, REAL *, int, int );
- REAL calcPartialVelocity ( REAL *, REAL *, int, int, int, int, int, int, REAL, REAL, int );
- int project( REAL *, int, int, REAL *, int, int, int, int);
- void surfbbox( REAL bb[2][MAXCOORDS] );
-
- int bboxTooBig( REAL *, int, int, int, int, REAL [2][MAXCOORDS] );
- int xformAndCullCheck( REAL *, int, int, int, int );
-
- void identify( REAL[MAXCOORDS][MAXCOORDS] );
- void setBboxsize( INREAL *);
- inline void setBmat( INREAL*, long, long );
- inline void setCmat( INREAL*, long, long );
- inline void setSmat( INREAL*, long, long );
- inline int isRational( void );
- inline int getNcoords( void );
-
- REAL pixel_tolerance; /* pathlength sampling tolerance */
- REAL error_tolerance; /* parametric error sampling tolerance*/
- REAL object_space_error_tolerance; /* object space tess*/
- REAL clampfactor;
- REAL minsavings;
- REAL maxrate;
- REAL maxsrate;
- REAL maxtrate;
- REAL bboxsize[MAXCOORDS];
-
-private:
- long type;
- int isrational;
- int ncoords;
- int hcoords;
- int inhcoords;
- int mask;
- Maxmatrix bmat;
- Maxmatrix cmat;
- Maxmatrix smat;
- REAL s_steps; /* max samples in s direction */
- REAL t_steps; /* max samples in t direction */
- REAL sampling_method;
- REAL culling_method; /* check for culling */
- REAL bbox_subdividing;
- Mapdesc * next;
- Backend & backend;
-
- void bbox( REAL [2][MAXCOORDS], REAL *, int, int, int, int );
- REAL maxDifference( int, REAL *, int );
- static void copy( Maxmatrix, long, INREAL *, long, long );
-
- /* individual control point routines */
- static void transform4d( float[4], float[4], float[4][4] );
- static void multmatrix4d ( float[4][4], const float[4][4],
- const float[4][4] );
- void copyPt( REAL *, REAL * );
- void sumPt( REAL *, REAL *, REAL *, REAL, REAL );
- void xformSampling( REAL *, REAL * );
- void xformCulling( REAL *, REAL * );
- void xformRational( Maxmatrix, REAL *, REAL * );
- void xformNonrational( Maxmatrix, REAL *, REAL * );
- unsigned int clipbits( REAL * );
-};
-
-inline void
-Mapdesc::setBmat( INREAL *mat, long rstride, long cstride )
-{
- copy( bmat, hcoords, mat, rstride, cstride );
-}
-
-inline void
-Mapdesc::setCmat( INREAL *mat, long rstride, long cstride )
-{
- copy( cmat, hcoords, mat, rstride, cstride );
-}
-
-inline void
-Mapdesc::setSmat( INREAL *mat, long rstride, long cstride )
-{
- copy( smat, hcoords, mat, rstride, cstride );
-}
-
-inline long
-Mapdesc::getType( void )
-{
- return type;
-}
-
-inline void
-Mapdesc::xformCulling( REAL *d, REAL *s )
-{
- if( isrational )
- xformRational( cmat, d, s );
- else
- xformNonrational( cmat, d, s );
-}
-
-inline void
-Mapdesc::xformSampling( REAL *d, REAL *s )
-{
- if( isrational )
- xformRational( smat, d, s );
- else
- xformNonrational( smat, d, s );
-}
-
-inline int
-Mapdesc::isRational( void )
-{
- return isrational ? 1 : 0;
-}
-
-inline int
-Mapdesc::getNcoords( void )
-{
- return ncoords;
-}
-
-inline int
-Mapdesc::isConstantSampling( void )
-{
- return ((sampling_method == N_FIXEDRATE) ? 1 : 0);
-}
-
-inline int
-Mapdesc::isDomainSampling( void )
-{
- return ((sampling_method == N_DOMAINDISTANCE) ? 1 : 0);
-}
-
-inline int
-Mapdesc::isParametricDistanceSampling( void )
-{
- return ((sampling_method == N_PARAMETRICDISTANCE) ? 1 : 0);
-}
-
-inline int
-Mapdesc::isObjectSpaceParaSampling( void )
-{
- return ((sampling_method == N_OBJECTSPACE_PARA) ? 1 : 0);
-}
-
-inline int
-Mapdesc::isObjectSpacePathSampling( void )
-{
- return ((sampling_method == N_OBJECTSPACE_PATH) ? 1 : 0);
-}
-
-inline int
-Mapdesc::isSurfaceAreaSampling( void )
-{
- return ((sampling_method == N_SURFACEAREA) ? 1 : 0);
-}
-
-inline int
-Mapdesc::isPathLengthSampling( void )
-{
- return ((sampling_method == N_PATHLENGTH) ? 1 : 0);
-}
-
-inline int
-Mapdesc::isRangeSampling( void )
-{
- return ( isParametricDistanceSampling() || isPathLengthSampling() ||
- isSurfaceAreaSampling() ||
- isObjectSpaceParaSampling() ||
- isObjectSpacePathSampling());
-}
-
-inline int
-Mapdesc::isSampling( void )
-{
- return isRangeSampling() || isConstantSampling() || isDomainSampling();
-}
-
-inline int
-Mapdesc::isCulling( void )
-{
- return ((culling_method != N_NOCULLING) ? 1 : 0);
-}
-
-inline int
-Mapdesc::isBboxSubdividing( void )
-{
- return ((bbox_subdividing != N_NOBBOXSUBDIVISION) ? 1 : 0);
-}
-#endif /* __glumapdesc_h_ */
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