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* text.c - functions for text patterns and mixtures. |
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*/ |
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|
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/* ==================================================================== |
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* The Radiance Software License, Version 1.0 |
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* |
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* Copyright (c) 1990 - 2002 The Regents of the University of California, |
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* through Lawrence Berkeley National Laboratory. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, |
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* if any, must include the following acknowledgment: |
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* "This product includes Radiance software |
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* (http://radsite.lbl.gov/) |
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* developed by the Lawrence Berkeley National Laboratory |
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* (http://www.lbl.gov/)." |
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* Alternately, this acknowledgment may appear in the software itself, |
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* if and wherever such third-party acknowledgments normally appear. |
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* |
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* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
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* and "The Regents of the University of California" must |
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* not be used to endorse or promote products derived from this |
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* software without prior written permission. For written |
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* permission, please contact [email protected]. |
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* |
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* 5. Products derived from this software may not be called "Radiance", |
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* nor may "Radiance" appear in their name, without prior written |
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* permission of Lawrence Berkeley National Laboratory. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
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* information on Lawrence Berkeley National Laboratory, please see |
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* <http://www.lbl.gov/>. |
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*/ |
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> |
#include "copyright.h" |
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|
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#include "ray.h" |
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|
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#include "paths.h" |
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#include "otypes.h" |
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|
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#include "rtotypes.h" |
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#include "font.h" |
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|
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/* |
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TLINE tl; /* line list */ |
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} TEXT; |
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|
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TEXT *gettext(); |
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static TLINE * tlalloc(char *s); |
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static TEXT * gettext(OBJREC *tm); |
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> |
static int intext(FVECT p, OBJREC *m); |
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> |
static int inglyph(double x, double y, GLYPH *gl); |
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|
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TLINE *tlalloc(); |
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|
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|
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do_text(m, r) |
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register OBJREC *m; |
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RAY *r; |
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int |
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do_text( |
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OBJREC *m, |
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RAY *r |
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) |
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{ |
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FVECT v; |
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int foreground; |
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} |
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|
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|
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TLINE * |
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tlalloc(s) /* allocate and assign text line */ |
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char *s; |
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> |
static TLINE * |
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> |
tlalloc( /* allocate and assign text line */ |
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> |
char *s |
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> |
) |
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{ |
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register int siz; |
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register TLINE *tl; |
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> |
int siz; |
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TLINE *tl; |
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|
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siz = strlen(s) + 1; |
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if ((tl=(TLINE *)malloc(sizeof(TLINE)+siz)) == NULL || |
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} |
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|
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|
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TEXT * |
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gettext(tm) /* get text structure for material */ |
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register OBJREC *tm; |
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> |
static TEXT * |
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> |
gettext( /* get text structure for material */ |
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> |
OBJREC *tm |
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> |
) |
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{ |
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#define R (tm->oargs.farg+3) |
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#define D (tm->oargs.farg+6) |
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FILE *fp; |
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char linbuf[512]; |
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TEXT *t; |
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< |
register int i; |
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< |
register TLINE *tlp; |
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< |
register char *s; |
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> |
int i; |
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> |
TLINE *tlp; |
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> |
char *s; |
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|
|
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if ((t = (TEXT *)tm->os) != NULL) |
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return(t); |
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tlp = tlp->next; |
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} else { /* text file */ |
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if ((s = getpath(tm->oargs.sarg[tndx(tm)], |
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< |
getlibpath(), R_OK)) == NULL) { |
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> |
getrlibpath(), R_OK)) == NULL) { |
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|
sprintf(errmsg, "cannot find text file \"%s\"", |
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|
tm->oargs.sarg[tndx(tm)]); |
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error(USER, errmsg); |
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> |
error(SYSTEM, errmsg); |
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} |
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|
if ((fp = fopen(s, "r")) == NULL) { |
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sprintf(errmsg, "cannot open text file \"%s\"", s); |
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tlp->next = NULL; |
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/* get the font */ |
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|
t->f = getfont(tm->oargs.sarg[fndx(tm)]); |
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+ |
if (!t->f) |
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+ |
objerror(tm, USER, "font load error"); |
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|
/* compute character spacing */ |
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|
i = sndx(tm); |
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|
d = i < tm->oargs.nfargs ? tm->oargs.farg[i] : 0.0; |
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|
} |
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|
|
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|
|
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< |
freetext(m) /* free text structures associated with m */ |
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< |
OBJREC *m; |
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> |
void |
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> |
freetext( /* free text structures associated with m */ |
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> |
OBJREC *m |
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> |
) |
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|
{ |
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< |
register TEXT *tp; |
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< |
register TLINE *tlp; |
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> |
TEXT *tp; |
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> |
TLINE *tlp; |
| 257 |
|
|
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|
tp = (TEXT *)m->os; |
| 259 |
|
if (tp == NULL) |
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|
} |
| 270 |
|
|
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|
|
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< |
intext(p, m) /* check to see if p is in text glyph */ |
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< |
FVECT p; |
| 274 |
< |
OBJREC *m; |
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> |
static int |
| 273 |
> |
intext( /* check to see if p is in text glyph */ |
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> |
FVECT p, |
| 275 |
> |
OBJREC *m |
| 276 |
> |
) |
| 277 |
|
{ |
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< |
register TEXT *tp; |
| 279 |
< |
register TLINE *tlp; |
| 278 |
> |
TEXT *tp; |
| 279 |
> |
TLINE *tlp; |
| 280 |
|
FVECT v; |
| 281 |
|
double y, x; |
| 282 |
< |
register int i, h; |
| 282 |
> |
int i, h; |
| 283 |
|
/* first, compute position in text */ |
| 284 |
|
tp = gettext(m); |
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|
v[0] = p[0] - m->oargs.farg[0]; |
| 311 |
|
} |
| 312 |
|
|
| 313 |
|
|
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< |
inglyph(x, y, gl) /* (x,y) within font glyph gl? */ |
| 315 |
< |
double x, y; /* real coordinates in range [0,255) */ |
| 316 |
< |
register GLYPH *gl; |
| 314 |
> |
static int |
| 315 |
> |
inglyph( /* (x,y) within font glyph gl? */ |
| 316 |
> |
double x, /* real coordinates in range [0,255) */ |
| 317 |
> |
double y, |
| 318 |
> |
GLYPH *gl |
| 319 |
> |
) |
| 320 |
|
{ |
| 321 |
|
int n, ncross; |
| 322 |
|
int xlb, ylb; |
| 323 |
|
int tv; |
| 324 |
< |
register GORD *p0, *p1; |
| 324 |
> |
GORD *p0, *p1; |
| 325 |
|
|
| 326 |
|
if (gl == NULL) |
| 327 |
|
return(0); |
| 339 |
|
/* positive x axis cross test */ |
| 340 |
|
while (n--) { |
| 341 |
|
if ((p0[1]<<1 > ylb) ^ (p1[1]<<1 > ylb)) { |
| 342 |
< |
tv = p0[0]<<1 > xlb | (p1[0]<<1 > xlb) << 1; |
| 342 |
> |
tv = (p0[0]<<1 > xlb) | ((p1[0]<<1 > xlb) << 1); |
| 343 |
|
if (tv == 03) |
| 344 |
|
ncross++; |
| 345 |
|
else if (tv) |
