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Comparing ray/src/rt/text.c (file contents):
Revision 2.20 by greg, Sat Feb 22 02:07:29 2003 UTC vs.
Revision 2.30 by greg, Tue Dec 3 19:36:58 2024 UTC

# Line 5 | Line 5 | static const char      RCSid[] = "$Id$";
5   *  text.c - functions for text patterns and mixtures.
6   */
7  
8 < /* ====================================================================
9 < * The Radiance Software License, Version 1.0
10 < *
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 < */
8 > #include "copyright.h"
9  
10   #include  "ray.h"
11 <
11 > #include  "paths.h"
12   #include  "otypes.h"
13 <
13 > #include  "rtotypes.h"
14   #include  "font.h"
15  
16   /*
# Line 131 | Line 76 | typedef struct {
76          TLINE  tl;                      /* line list */
77   }  TEXT;
78  
79 < TEXT  *gettext();
79 > static TLINE * tlalloc(char *s);
80 > static TEXT * gettext(OBJREC *tm);
81 > static int intext(FVECT p, OBJREC *m);
82 > static int inglyph(double x, double y, GLYPH *gl);
83  
136 – TLINE  *tlalloc();
84  
85 <
86 < do_text(m, r)
87 < register OBJREC  *m;
88 < RAY  *r;
85 > int
86 > do_text(
87 >        OBJREC  *m,
88 >        RAY  *r
89 > )
90   {
91          FVECT  v;
92          int  foreground;
# Line 165 | Line 113 | RAY  *r;
113                          return(1);
114                  }
115          } else if (m->otype == PAT_BTEXT) {
116 <                if (foreground)
117 <                        scalecolor(r->pcol, m->oargs.farg[9]);
118 <                else
119 <                        scalecolor(r->pcol, m->oargs.farg[10]);
116 >                if (foreground) {
117 >                        scalescolor(r->pcol, m->oargs.farg[9]);
118 >                } else {
119 >                        scalescolor(r->pcol, m->oargs.farg[10]);
120 >                }
121          } else { /* PAT_CTEXT */
122 <                COLOR  cval;
122 >                SCOLOR  scval;
123                  if (foreground)
124 <                        setcolor(cval, m->oargs.farg[9],
124 >                        setscolor(scval, m->oargs.farg[9],
125                                          m->oargs.farg[10],
126                                          m->oargs.farg[11]);
127                  else
128 <                        setcolor(cval, m->oargs.farg[12],
128 >                        setscolor(scval, m->oargs.farg[12],
129                                          m->oargs.farg[13],
130                                          m->oargs.farg[14]);
131 <                multcolor(r->pcol, cval);
131 >                smultscolor(r->pcol, scval);
132          }
133          return(0);
134   }
135  
136  
137 < TLINE *
138 < tlalloc(s)                      /* allocate and assign text line */
139 < char  *s;
137 > static TLINE *
138 > tlalloc(                        /* allocate and assign text line */
139 >        char  *s
140 > )
141   {
142 <        register int  siz;
143 <        register TLINE  *tl;
142 >        int  siz;
143 >        TLINE  *tl;
144  
145          siz = strlen(s) + 1;
146          if ((tl=(TLINE *)malloc(sizeof(TLINE)+siz)) == NULL ||
# Line 202 | Line 152 | char  *s;
152   }
153  
154  
155 < TEXT *
156 < gettext(tm)                     /* get text structure for material */
157 < register OBJREC  *tm;
155 > static TEXT *
156 > gettext(                        /* get text structure for material */
157 >        OBJREC  *tm
158 > )
159   {
160   #define  R      (tm->oargs.farg+3)
161   #define  D      (tm->oargs.farg+6)
# Line 213 | Line 164 | register OBJREC  *tm;
164          FILE  *fp;
165          char  linbuf[512];
166          TEXT  *t;
167 <        register int  i;
168 <        register TLINE  *tlp;
169 <        register char  *s;
167 >        int  i;
168 >        TLINE  *tlp;
169 >        char  *s;
170  
171          if ((t = (TEXT *)tm->os) != NULL)
172                  return(t);
# Line 251 | Line 202 | register OBJREC  *tm;
202                  tlp = tlp->next;
203          } else {                                /* text file */
204                  if ((s = getpath(tm->oargs.sarg[tndx(tm)],
205 <                                getlibpath(), R_OK)) == NULL) {
205 >                                getrlibpath(), R_OK)) == NULL) {
206                          sprintf(errmsg, "cannot find text file \"%s\"",
207                                          tm->oargs.sarg[tndx(tm)]);
208 <                        error(USER, errmsg);
208 >                        error(SYSTEM, errmsg);
209                  }
210                  if ((fp = fopen(s, "r")) == NULL) {
211                          sprintf(errmsg, "cannot open text file \"%s\"", s);
# Line 272 | Line 223 | register OBJREC  *tm;
223          tlp->next = NULL;
224                                                  /* get the font */
225          t->f = getfont(tm->oargs.sarg[fndx(tm)]);
226 +        if (!t->f)
227 +                objerror(tm, USER, "font load error");
228                                                  /* compute character spacing */
229          i = sndx(tm);
230          d = i < tm->oargs.nfargs ? tm->oargs.farg[i] : 0.0;
# Line 295 | Line 248 | register OBJREC  *tm;
248   }
249  
250  
251 < freetext(m)                     /* free text structures associated with m */
252 < OBJREC  *m;
251 > void
252 > freetext(                       /* free text structures associated with m */
253 >        OBJREC  *m
254 > )
255   {
256 <        register TEXT  *tp;
257 <        register TLINE  *tlp;
256 >        TEXT  *tp;
257 >        TLINE  *tlp;
258  
259          tp = (TEXT *)m->os;
260          if (tp == NULL)
# Line 315 | Line 270 | OBJREC  *m;
270   }
271  
272  
273 < intext(p, m)                    /* check to see if p is in text glyph */
274 < FVECT  p;
275 < OBJREC  *m;
273 > static int
274 > intext(                 /* check to see if p is in text glyph */
275 >        FVECT  p,
276 >        OBJREC  *m
277 > )
278   {
279 <        register TEXT  *tp;
280 <        register TLINE  *tlp;
279 >        TEXT  *tp;
280 >        TLINE  *tlp;
281          FVECT  v;
282          double  y, x;
283 <        register int  i, h;
283 >        int  i, h;
284                                  /* first, compute position in text */
285          tp = gettext(m);
286          v[0] = p[0] - m->oargs.farg[0];
# Line 337 | Line 294 | OBJREC  *m;
294                  x *= 255.;
295          h = x;
296          i = y = DOT(v, tp->down);
297 <        if (x < 0.0 || y < 0.0)
297 >        if ((x < 0.0) | (y < 0.0))
298                  return(0);
299          x -= (double)h;
300          y = ((i+1) - y)*255.;
# Line 355 | Line 312 | OBJREC  *m;
312   }
313  
314  
315 < inglyph(x, y, gl)               /* (x,y) within font glyph gl? */
316 < double  x, y;           /* real coordinates in range [0,255) */
317 < register GLYPH  *gl;
315 > static int
316 > inglyph(                /* (x,y) within font glyph gl? */
317 >        double  x,              /* real coordinates in range [0,255) */
318 >        double  y,
319 >        GLYPH  *gl
320 > )
321   {
322          int  n, ncross;
323          int  xlb, ylb;
324          int  tv;
325 <        register GORD  *p0, *p1;
325 >        GORD  *p0, *p1;
326  
327          if (gl == NULL)
328                  return(0);
329          xlb = x;
330          ylb = y;
331 <        if (gl->left > xlb || gl->right <= xlb ||       /* check extent */
332 <                        gl->bottom > ylb || gl->top <= ylb)
331 >        if ((gl->left > xlb) | (gl->right <= xlb) |     /* check extent */
332 >                        (gl->bottom > ylb) | (gl->top <= ylb))
333                  return(0);
334          xlb = xlb<<1 | 1;               /* add 1/2 to test points... */
335          ylb = ylb<<1 | 1;               /* ...so no equal comparisons */
# Line 380 | Line 340 | register GLYPH  *gl;
340                                          /* positive x axis cross test */
341          while (n--) {
342                  if ((p0[1]<<1 > ylb) ^ (p1[1]<<1 > ylb)) {
343 <                        tv = p0[0]<<1 > xlb | (p1[0]<<1 > xlb) << 1;
343 >                        tv = (p0[0]<<1 > xlb) | ((p1[0]<<1 > xlb) << 1);
344                          if (tv == 03)
345                                  ncross++;
346                          else if (tv)

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