| 5 |
|
* Polygonal font handling routines |
| 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 "standard.h" |
| 10 |
> |
#include <stdlib.h> |
| 11 |
|
|
| 12 |
+ |
#include "paths.h" |
| 13 |
+ |
#include "rtio.h" |
| 14 |
+ |
#include "rterror.h" |
| 15 |
|
#include "font.h" |
| 16 |
|
|
| 17 |
|
#define galloc(nv) (GLYPH *)malloc(sizeof(GLYPH)+2*sizeof(GORD)*(nv)) |
| 18 |
|
|
| 71 |
– |
|
| 19 |
|
int retainfonts = 0; /* retain loaded fonts? */ |
| 20 |
|
|
| 21 |
|
static FONT *fontlist = NULL; /* list of loaded fonts */ |
| 22 |
|
|
| 23 |
|
|
| 24 |
|
FONT * |
| 25 |
< |
getfont(fname) /* return font fname */ |
| 26 |
< |
char *fname; |
| 25 |
> |
getfont( /* return font fname */ |
| 26 |
> |
char *fname |
| 27 |
> |
) |
| 28 |
|
{ |
| 29 |
+ |
char embuf[512]; |
| 30 |
|
FILE *fp; |
| 31 |
< |
char *pathname, *err; |
| 31 |
> |
char *pathname, *err = NULL; |
| 32 |
|
unsigned wsum, hsum, ngly; |
| 33 |
|
int gn, ngv, gv; |
| 34 |
< |
register GLYPH *g; |
| 34 |
> |
GLYPH *g; |
| 35 |
|
GORD *gp; |
| 36 |
< |
register FONT *f; |
| 36 |
> |
FONT *f; |
| 37 |
|
|
| 38 |
|
for (f = fontlist; f != NULL; f = f->next) |
| 39 |
|
if (!strcmp(f->name, fname)) { |
| 41 |
|
return(f); |
| 42 |
|
} |
| 43 |
|
/* load the font file */ |
| 44 |
< |
if ((pathname = getpath(fname, getlibpath(), R_OK)) == NULL) { |
| 45 |
< |
sprintf(errmsg, "cannot find font file \"%s\"", fname); |
| 46 |
< |
error(USER, errmsg); |
| 44 |
> |
if ((pathname = getpath(fname, getrlibpath(), R_OK)) == NULL) { |
| 45 |
> |
sprintf(embuf, "cannot find font file \"%s\"\n", fname); |
| 46 |
> |
eputs(embuf); |
| 47 |
> |
return(NULL); |
| 48 |
|
} |
| 49 |
+ |
if ((fp = fopen(pathname, "r")) == NULL) { |
| 50 |
+ |
sprintf(embuf, "cannot open font file \"%s\"\n", pathname); |
| 51 |
+ |
eputs(embuf); |
| 52 |
+ |
return(NULL); |
| 53 |
+ |
} |
| 54 |
|
f = (FONT *)calloc(1, sizeof(FONT)); |
| 55 |
|
if (f == NULL) |
| 56 |
|
goto memerr; |
| 57 |
< |
f->name = savestr(fname); |
| 57 |
> |
strcpy(f->name, fname); |
| 58 |
|
f->nref = 1; |
| 104 |
– |
if ((fp = fopen(pathname, "r")) == NULL) { |
| 105 |
– |
sprintf(errmsg, "cannot open font file \"%s\"", |
| 106 |
– |
pathname); |
| 107 |
– |
error(SYSTEM, errmsg); |
| 108 |
– |
} |
| 59 |
|
wsum = hsum = ngly = 0; /* get each glyph */ |
| 60 |
|
while ((ngv = fgetval(fp, 'i', (char *)&gn)) != EOF) { |
| 61 |
|
if (ngv == 0) |
| 73 |
|
err = "bad # vertices for"; |
| 74 |
|
goto fonterr; |
| 75 |
|
} |
| 76 |
+ |
if (ngv > f->maxgv) |
| 77 |
+ |
f->maxgv = ngv; |
| 78 |
|
g = galloc(ngv); |
| 79 |
|
if (g == NULL) |
| 80 |
|
goto memerr; |
| 116 |
|
f->next = fontlist; |
| 117 |
|
return(fontlist = f); |
| 118 |
|
nonint: |
| 119 |
< |
sprintf(errmsg, "non-integer in font file \"%s\"", pathname); |
| 120 |
< |
error(USER, errmsg); |
| 119 |
> |
sprintf(embuf, "non-integer in font file \"%s\"\n", pathname); |
| 120 |
> |
eputs(embuf); |
| 121 |
> |
fclose(fp); |
| 122 |
> |
return(NULL); |
| 123 |
|
fonterr: |
| 124 |
< |
sprintf(errmsg, "%s character (%d) in font file \"%s\"", |
| 124 |
> |
sprintf(embuf, "%s character (%d) in font file \"%s\"\n", |
| 125 |
|
err, gn, pathname); |
| 126 |
< |
error(USER, errmsg); |
| 126 |
> |
eputs(embuf); |
| 127 |
> |
fclose(fp); |
| 128 |
> |
return(NULL); |
| 129 |
|
memerr: |
| 130 |
< |
error(SYSTEM, "out of memory in fontglyph"); |
| 130 |
> |
eputs("out of memory in getfont()\n"); |
| 131 |
> |
fclose(fp); |
| 132 |
> |
return(NULL); |
| 133 |
|
} |
| 134 |
|
|
| 135 |
|
|
| 136 |
|
void |
| 137 |
< |
freefont(fnt) /* release a font (free all if NULL) */ |
| 138 |
< |
FONT *fnt; |
| 137 |
> |
freefont( /* release a font (free all if NULL) */ |
| 138 |
> |
FONT *fnt |
| 139 |
> |
) |
| 140 |
|
{ |
| 141 |
|
FONT head; |
| 142 |
< |
register FONT *fl, *f; |
| 143 |
< |
register int i; |
| 142 |
> |
FONT *fl, *f; |
| 143 |
> |
int i; |
| 144 |
|
/* check reference count */ |
| 145 |
< |
if (fnt != NULL && (fnt->nref-- > 1 | retainfonts)) |
| 145 |
> |
if (fnt != NULL && (fnt->nref -= (f->nref > 0)) | retainfonts)) |
| 146 |
|
return; |
| 147 |
|
head.next = fontlist; |
| 148 |
|
fl = &head; |
| 149 |
|
while ((f = fl->next) != NULL) |
| 150 |
< |
if ((fnt == NULL | fnt == f)) { |
| 150 |
> |
if ((fnt == NULL) | (fnt == f)) { |
| 151 |
|
fl->next = f->next; |
| 152 |
|
for (i = 0; i < 256; i++) |
| 153 |
|
if (f->fg[i] != NULL) |
| 154 |
|
free((void *)f->fg[i]); |
| 196 |
– |
freestr(f->name); |
| 155 |
|
free((void *)f); |
| 156 |
|
} else |
| 157 |
|
fl = f; |
| 160 |
|
|
| 161 |
|
|
| 162 |
|
int |
| 163 |
< |
uniftext(sp, tp, f) /* uniformly space text line */ |
| 164 |
< |
register short *sp; /* returned character spacing */ |
| 165 |
< |
register char *tp; /* text line */ |
| 166 |
< |
register FONT *f; /* font */ |
| 163 |
> |
uniftext( /* uniformly space text line */ |
| 164 |
> |
short *sp, /* returned character spacing */ |
| 165 |
> |
char *tp, /* text line */ |
| 166 |
> |
FONT *f /* font */ |
| 167 |
> |
) |
| 168 |
|
{ |
| 169 |
|
int linelen; |
| 170 |
|
|
| 179 |
|
|
| 180 |
|
|
| 181 |
|
int |
| 182 |
< |
squeeztext(sp, tp, f, cis) /* squeeze text line */ |
| 183 |
< |
short *sp; /* returned character spacing */ |
| 184 |
< |
char *tp; /* text line */ |
| 185 |
< |
FONT *f; /* font */ |
| 186 |
< |
int cis; /* intercharacter spacing */ |
| 182 |
> |
squeeztext( /* squeeze text line */ |
| 183 |
> |
short *sp, /* returned character spacing */ |
| 184 |
> |
char *tp, /* text line */ |
| 185 |
> |
FONT *f, /* font */ |
| 186 |
> |
int cis /* intercharacter spacing */ |
| 187 |
> |
) |
| 188 |
|
{ |
| 189 |
|
int linelen; |
| 190 |
< |
register GLYPH *gp; |
| 190 |
> |
GLYPH *gp; |
| 191 |
|
|
| 192 |
|
linelen = 0; |
| 193 |
|
gp = NULL; |
| 215 |
|
|
| 216 |
|
|
| 217 |
|
int |
| 218 |
< |
proptext(sp, tp, f, cis, nsi) /* space line proportionally */ |
| 219 |
< |
short *sp; /* returned character spacing */ |
| 220 |
< |
char *tp; /* text line */ |
| 221 |
< |
FONT *f; /* font */ |
| 222 |
< |
int cis; /* target intercharacter spacing */ |
| 223 |
< |
int nsi; /* minimum number of spaces for indent */ |
| 218 |
> |
proptext( /* space line proportionally */ |
| 219 |
> |
short *sp, /* returned character spacing */ |
| 220 |
> |
char *tp, /* text line */ |
| 221 |
> |
FONT *f, /* font */ |
| 222 |
> |
int cis, /* target intercharacter spacing */ |
| 223 |
> |
int nsi /* minimum number of spaces for indent */ |
| 224 |
> |
) |
| 225 |
|
{ |
| 226 |
< |
register char *end, *tab; |
| 226 |
> |
char *end, *tab = NULL; |
| 227 |
|
GLYPH *gp; |
| 228 |
|
short *nsp; |
| 229 |
|
int alen, len, width; |
