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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: 2001/03/17 00:25:41 $ $Revision: 1.1 $
* $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/mapdesc.h,v 1.1 2001/03/17 00:25:41 brianp 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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