| 1 |
– |
/* Copyright (c) 1990 Regents of the University of California */ |
| 2 |
– |
|
| 1 |
|
#ifndef lint |
| 2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
| 2 |
> |
static const char RCSid[] = "$Id$"; |
| 3 |
|
#endif |
| 6 |
– |
|
| 4 |
|
/* |
| 5 |
|
* t_data.c - routine for stored textures |
| 6 |
+ |
*/ |
| 7 |
+ |
|
| 8 |
+ |
/* ==================================================================== |
| 9 |
+ |
* The Radiance Software License, Version 1.0 |
| 10 |
|
* |
| 11 |
< |
* 6/4/86 |
| 11 |
> |
* Copyright (c) 1990 - 2002 The Regents of the University of California, |
| 12 |
> |
* through Lawrence Berkeley National Laboratory. All rights reserved. |
| 13 |
> |
* |
| 14 |
> |
* Redistribution and use in source and binary forms, with or without |
| 15 |
> |
* modification, are permitted provided that the following conditions |
| 16 |
> |
* are met: |
| 17 |
> |
* |
| 18 |
> |
* 1. Redistributions of source code must retain the above copyright |
| 19 |
> |
* notice, this list of conditions and the following disclaimer. |
| 20 |
> |
* |
| 21 |
> |
* 2. Redistributions in binary form must reproduce the above copyright |
| 22 |
> |
* notice, this list of conditions and the following disclaimer in |
| 23 |
> |
* the documentation and/or other materials provided with the |
| 24 |
> |
* distribution. |
| 25 |
> |
* |
| 26 |
> |
* 3. The end-user documentation included with the redistribution, |
| 27 |
> |
* if any, must include the following acknowledgment: |
| 28 |
> |
* "This product includes Radiance software |
| 29 |
> |
* (http://radsite.lbl.gov/) |
| 30 |
> |
* developed by the Lawrence Berkeley National Laboratory |
| 31 |
> |
* (http://www.lbl.gov/)." |
| 32 |
> |
* Alternately, this acknowledgment may appear in the software itself, |
| 33 |
> |
* if and wherever such third-party acknowledgments normally appear. |
| 34 |
> |
* |
| 35 |
> |
* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
| 36 |
> |
* and "The Regents of the University of California" must |
| 37 |
> |
* not be used to endorse or promote products derived from this |
| 38 |
> |
* software without prior written permission. For written |
| 39 |
> |
* permission, please contact [email protected]. |
| 40 |
> |
* |
| 41 |
> |
* 5. Products derived from this software may not be called "Radiance", |
| 42 |
> |
* nor may "Radiance" appear in their name, without prior written |
| 43 |
> |
* permission of Lawrence Berkeley National Laboratory. |
| 44 |
> |
* |
| 45 |
> |
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| 46 |
> |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 47 |
> |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 48 |
> |
* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
| 49 |
> |
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 50 |
> |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 51 |
> |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 52 |
> |
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 53 |
> |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 54 |
> |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 55 |
> |
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 56 |
> |
* SUCH DAMAGE. |
| 57 |
> |
* ==================================================================== |
| 58 |
> |
* |
| 59 |
> |
* This software consists of voluntary contributions made by many |
| 60 |
> |
* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
| 61 |
> |
* information on Lawrence Berkeley National Laboratory, please see |
| 62 |
> |
* <http://www.lbl.gov/>. |
| 63 |
|
*/ |
| 64 |
|
|
| 65 |
|
#include "ray.h" |
| 66 |
|
|
| 67 |
|
#include "data.h" |
| 68 |
|
|
| 69 |
+ |
#include "func.h" |
| 70 |
+ |
|
| 71 |
|
/* |
| 72 |
|
* A stored texture is specified as follows: |
| 73 |
|
* |
| 90 |
|
register OBJREC *m; |
| 91 |
|
RAY *r; |
| 92 |
|
{ |
| 39 |
– |
extern double varvalue(), funvalue(), datavalue(); |
| 40 |
– |
extern int errno; |
| 93 |
|
int nv; |
| 94 |
< |
FVECT dval, disp; |
| 95 |
< |
double pt[MAXDIM]; |
| 94 |
> |
FVECT disp; |
| 95 |
> |
double dval[3], pt[MAXDIM]; |
| 96 |
|
double d; |
| 97 |
|
DATARRAY *dp; |
| 98 |
< |
register FULLXF *mxf; |
| 47 |
< |
register char **sa; |
| 98 |
> |
register MFUNC *mf; |
| 99 |
|
register int i; |
| 100 |
|
|
| 101 |
|
if (m->oargs.nsargs < 8) |
| 102 |
|
objerror(m, USER, "bad # arguments"); |
| 103 |
< |
sa = m->oargs.sarg; |
| 104 |
< |
|
| 105 |
< |
for (i = 7; i < m->oargs.nsargs && sa[i][0] != '-'; i++) |
| 106 |
< |
; |
| 56 |
< |
nv = i-7; |
| 57 |
< |
if ((mxf = (FULLXF *)m->os) == NULL) { |
| 58 |
< |
mxf = (FULLXF *)malloc(sizeof(FULLXF)); |
| 59 |
< |
if (mxf == NULL) |
| 60 |
< |
goto memerr; |
| 61 |
< |
if (fullxf(mxf, m->oargs.nsargs-i, sa+i) != m->oargs.nsargs-i) |
| 62 |
< |
objerror(m, USER, "bad transform"); |
| 63 |
< |
if (mxf->f.sca < 0.0) |
| 64 |
< |
mxf->f.sca = -mxf->f.sca; |
| 65 |
< |
if (mxf->b.sca < 0.0) |
| 66 |
< |
mxf->b.sca = -mxf->b.sca; |
| 67 |
< |
m->os = (char *)mxf; |
| 68 |
< |
} |
| 69 |
< |
|
| 70 |
< |
setmap(m, r, &mxf->b); |
| 71 |
< |
|
| 72 |
< |
if (nv > MAXDIM) |
| 73 |
< |
goto dimerr; |
| 74 |
< |
funcfile(sa[6]); |
| 103 |
> |
dp = getdata(m->oargs.sarg[3]); |
| 104 |
> |
i = (1 << (nv = dp->nd)) - 1; |
| 105 |
> |
mf = getfunc(m, 6, i<<7, 1); |
| 106 |
> |
setfunc(m, r); |
| 107 |
|
errno = 0; |
| 108 |
|
for (i = 0; i < nv; i++) |
| 109 |
< |
pt[i] = varvalue(sa[i+7]); |
| 109 |
> |
pt[i] = evalue(mf->ep[i]); |
| 110 |
|
if (errno) |
| 111 |
|
goto computerr; |
| 112 |
< |
for (i = 0; i < 3; i++) { |
| 113 |
< |
dp = getdata(sa[i+3]); |
| 112 |
> |
dval[0] = datavalue(dp, pt); |
| 113 |
> |
for (i = 1; i < 3; i++) { |
| 114 |
> |
dp = getdata(m->oargs.sarg[i+3]); |
| 115 |
|
if (dp->nd != nv) |
| 116 |
< |
goto dimerr; |
| 116 |
> |
objerror(m, USER, "dimension error"); |
| 117 |
|
dval[i] = datavalue(dp, pt); |
| 118 |
|
} |
| 119 |
|
errno = 0; |
| 120 |
|
for (i = 0; i < 3; i++) |
| 121 |
< |
disp[i] = funvalue(sa[i], 3, dval); |
| 121 |
> |
disp[i] = funvalue(m->oargs.sarg[i], 3, dval); |
| 122 |
|
if (errno) |
| 123 |
|
goto computerr; |
| 124 |
< |
|
| 125 |
< |
multv3(disp, disp, mxf->f.xfm); |
| 124 |
> |
if (mf->f != &unitxf) |
| 125 |
> |
multv3(disp, disp, mf->f->xfm); |
| 126 |
|
if (r->rox != NULL) { |
| 127 |
|
multv3(disp, disp, r->rox->f.xfm); |
| 128 |
< |
d = 1.0 / (mxf->f.sca * r->rox->f.sca); |
| 128 |
> |
d = 1.0 / (mf->f->sca * r->rox->f.sca); |
| 129 |
|
} else |
| 130 |
< |
d = 1.0 / mxf->f.sca; |
| 130 |
> |
d = 1.0 / mf->f->sca; |
| 131 |
|
for (i = 0; i < 3; i++) |
| 132 |
|
r->pert[i] += disp[i] * d; |
| 133 |
< |
return; |
| 101 |
< |
dimerr: |
| 102 |
< |
objerror(m, USER, "dimension error"); |
| 103 |
< |
memerr: |
| 104 |
< |
error(SYSTEM, "out of memory in t_data"); |
| 133 |
> |
return(0); |
| 134 |
|
computerr: |
| 135 |
|
objerror(m, WARNING, "compute error"); |
| 136 |
< |
return; |
| 136 |
> |
return(0); |
| 137 |
|
} |
